:root{--paper:#fff9e8;--ink:#18323d;--tomato:#f54d3d;--tomato-dark:#c9362b;--sun:#ffc93c;--aqua:#19b7b0;--aqua-dark:#087d7a;--leaf:#64a83b;--cream:#fffdf5}*{box-sizing:border-box}html{background:var(--paper);min-width:320px}body{min-height:100vh;color:var(--ink);font-family:var(--font-body), "Trebuchet MS", sans-serif;background:radial-gradient(circle at 12% 8%, #ffc93c59, transparent 18rem), radial-gradient(circle at 90% 30%, #19b7b033, transparent 22rem), linear-gradient(#18323d09 1px, transparent 1px), linear-gradient(90deg, #18323d09 1px, transparent 1px), var(--paper);background-size:auto,auto,24px 24px,24px 24px,auto;margin:0}button,input,select{font:inherit}button{color:inherit}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline-offset:3px;outline:4px solid #19b7b047}.app-shell{width:min(1180px,100% - 32px);margin:0 auto;padding:22px 0 48px}.topbar{justify-content:space-between;align-items:center;gap:18px;margin-bottom:28px;display:flex}.brand{align-items:center;gap:12px;display:flex}.brand-button{text-align:left;cursor:pointer;background:0 0;border:0;padding:0}.brand-mark{border:3px solid var(--ink);background:var(--sun);width:52px;height:52px;box-shadow:4px 4px 0 var(--ink);font-family:var(--font-display), sans-serif;border-radius:16px 18px 14px 20px;place-items:center;font-size:24px;font-weight:700;display:grid;transform:rotate(-5deg)}.brand-name{font-family:var(--font-display), sans-serif;letter-spacing:-.04em;margin:0;font-size:clamp(22px,3vw,34px);font-weight:700;line-height:.95}.brand-name span{color:var(--tomato);display:block}.view-switcher{border:2px solid var(--ink);box-shadow:3px 3px 0 var(--ink);background:#fffdf5c7;border-radius:999px;gap:6px;padding:5px;display:flex}.view-button{cursor:pointer;background:0 0;border:0;border-radius:999px;padding:9px 14px;font-weight:900}.view-button[aria-pressed=true]{background:var(--ink);color:#fff}.welcome-grid{grid-template-columns:minmax(0,1.25fr) minmax(320px,.75fr);align-items:stretch;gap:24px;display:grid}.welcome-card,.monster-poster,.signup-card,.signup-steps{border:3px solid var(--ink);box-shadow:7px 7px 0 var(--ink)}.welcome-card{background:#fffdf5f0;border-radius:34px 26px 40px 28px;min-height:580px;padding:clamp(30px,6vw,70px);position:relative;overflow:hidden}.welcome-card:after{content:"";border:34px solid #19b7b029;border-radius:42% 58% 52% 48%;width:220px;height:220px;position:absolute;bottom:-70px;right:-55px;transform:rotate(18deg)}.welcome-card h1{max-width:760px;font-family:var(--font-display), sans-serif;letter-spacing:-.06em;margin:12px 0 22px;font-size:clamp(45px,7vw,82px);line-height:.94}.welcome-copy{color:#18323dbd;max-width:670px;margin:0;font-size:clamp(17px,2.2vw,21px);font-weight:750;line-height:1.55}.welcome-actions{z-index:1;flex-wrap:wrap;gap:12px;margin-top:32px;display:flex;position:relative}.primary-action,.secondary-action,.exit-button{border:3px solid var(--ink);cursor:pointer;box-shadow:4px 4px 0 var(--ink);border-radius:16px;padding:13px 20px;font-weight:1000}.primary-action{background:var(--tomato);color:#fff}.secondary-action{background:var(--sun)}.link-button{color:inherit;text-align:center;text-decoration:none;display:inline-block}.brand-link{color:inherit;text-decoration:none}.primary-action:active,.secondary-action:active,.exit-button:active{box-shadow:1px 1px 0 var(--ink);transform:translate(3px,3px)}.feature-strip{z-index:1;border-left:7px solid var(--aqua);gap:3px;max-width:620px;margin-top:42px;padding:8px 0 8px 16px;display:grid;position:relative}.feature-strip strong{font-family:var(--font-display), sans-serif;font-size:18px}.feature-strip span{color:#18323db3;font-size:13px;font-weight:850;line-height:1.45}.monster-poster{background:radial-gradient(circle at 20% 18%, #ffffff5c, transparent 130px), var(--aqua);text-align:center;border-radius:28px 38px 24px 34px;grid-template-rows:1fr auto auto;place-items:center;gap:6px;min-height:580px;padding:35px;display:grid;position:relative;overflow:hidden}.poster-sticker{border-block:2px solid var(--ink);background:var(--sun);letter-spacing:.1em;text-transform:uppercase;width:170px;padding:9px;font-size:12px;font-weight:1000;position:absolute;top:28px;right:12px;transform:rotate(8deg)}.monster-face{border:4px solid var(--ink);background:var(--tomato);width:230px;height:250px;box-shadow:9px 9px 0 var(--ink);border-radius:46% 54% 40% 60%/40% 45% 55% 60%;grid-template-columns:1fr 1fr;align-content:start;place-items:center;display:grid;position:relative;transform:rotate(-4deg)}.monster-face strong{color:#fff;font-family:var(--font-display), sans-serif;font-size:150px;line-height:1;position:absolute;inset:42px 0 0}.monster-eye{z-index:1;background:var(--ink);border:7px solid #fff;border-radius:50%;width:23px;height:23px;margin-top:34px}.poster-problem{font-family:var(--font-display), sans-serif;margin:0;font-size:44px;font-weight:700}.poster-caption{text-transform:uppercase;margin:0 0 24px;font-size:14px;font-weight:1000}.hero-grid{grid-template-columns:minmax(0,1.45fr) minmax(280px,.55fr);gap:22px;display:grid}.game-card,.side-card,.parent-card{border:3px solid var(--ink);box-shadow:7px 7px 0 var(--ink);background:#fffdf5eb}.game-card{border-radius:34px 28px 38px 26px;min-height:610px;position:relative;overflow:hidden}.game-card:before{content:"";background:repeating-linear-gradient(90deg, var(--tomato) 0 48px, var(--sun) 48px 96px, var(--aqua) 96px 144px);height:12px;position:absolute;inset:0 0 auto}.game-toolbar{justify-content:space-between;align-items:center;gap:14px;padding:30px 30px 18px;display:flex}.toolbar-actions{align-items:center;gap:10px;display:flex}.exit-button{background:var(--cream);box-shadow:3px 3px 0 var(--ink);padding:8px 12px}.eyebrow{color:var(--aqua-dark);letter-spacing:.14em;text-transform:uppercase;margin:0 0 4px;font-size:12px;font-weight:1000}.session-title{font-family:var(--font-display), sans-serif;letter-spacing:-.03em;margin:0;font-size:clamp(25px,4vw,38px)}.streak-pill{border:2px solid var(--ink);background:var(--sun);box-shadow:3px 3px 0 var(--ink);border-radius:999px;flex:none;align-items:center;gap:7px;padding:9px 13px;font-weight:1000;display:flex}.operation-row{scrollbar-width:none;gap:8px;padding:8px 30px 12px;display:flex;overflow-x:auto}.operation-button{border:2px solid var(--ink);background:var(--cream);min-width:48px;font-family:var(--font-display), sans-serif;cursor:pointer;box-shadow:2px 2px 0 var(--ink);border-radius:13px;padding:8px 13px;font-weight:700}.operation-button[aria-pressed=true]{background:var(--aqua);color:#fff;box-shadow:none;transform:translate(2px,2px)}.problem-stage{text-align:center;place-items:center;min-height:350px;padding:34px 24px 20px;display:grid}.problem-label{color:#18323d9e;margin:0 0 10px;font-weight:900}.problem{font-family:var(--font-display), sans-serif;font-variant-numeric:tabular-nums;letter-spacing:-.055em;margin:0 0 24px;font-size:clamp(68px,12vw,120px);font-weight:700;line-height:.95}.answer-form{justify-content:center;align-items:stretch;gap:10px;width:min(100%,460px);display:flex}.answer-input{border:3px solid var(--ink);width:100%;min-width:0;color:var(--ink);font-family:var(--font-display), sans-serif;text-align:center;background:#fff;border-radius:18px;padding:14px 18px;font-size:34px;font-weight:700;box-shadow:inset 0 -4px #18323d14}.answer-input::placeholder{color:#18323d38}.submit-button{border:3px solid var(--ink);background:var(--tomato);color:#fff;cursor:pointer;box-shadow:4px 4px 0 var(--ink);border-radius:18px;padding:0 23px;font-weight:1000}.submit-button:active{box-shadow:1px 1px 0 var(--ink);transform:translate(3px,3px)}.submit-button:disabled,.answer-input:disabled{cursor:default;opacity:.62}.feedback{min-height:32px;margin:16px 0 0;font-weight:1000}.feedback[data-tone=correct]{color:var(--leaf)}.feedback[data-tone=incorrect]{color:var(--tomato-dark)}.feedback-dot{background:currentColor;border-radius:50%;width:10px;height:10px;margin-right:8px;animation:.32s ease-out tiny-pop;display:inline-block}.session-footer{background:#ffc93c21;border-top:2px dashed #18323d40;grid-template-columns:repeat(3,1fr);display:grid}.metric{text-align:center;padding:16px 20px}.metric+.metric{border-left:2px dashed #18323d33}.metric strong,.metric span{display:block}.metric strong{font-family:var(--font-display), sans-serif;font-size:24px}.metric span{color:#18323d9e;text-transform:uppercase;font-size:12px;font-weight:900}.side-stack{align-content:start;gap:18px;display:grid}.side-card{border-radius:24px 30px 22px 28px;padding:22px}.side-title{font-family:var(--font-display), sans-serif;margin:0 0 16px;font-size:22px}.side-card p:not(.eyebrow){color:#18323db8;margin:0;font-weight:750;line-height:1.5}.session-note{background:#ffc93c4d}.locked-card{background:#fffdf5eb}.compact-action{margin-top:20px;padding:10px 14px;font-size:13px}.mastery-row{grid-template-columns:42px 1fr auto;align-items:center;gap:10px;margin-top:12px;display:grid}.mastery-row>:nth-child(2){text-align:left}.mastery-row[data-playable]{border-radius:14px;position:relative}.mastery-row[data-playable] .mode-link:after{content:"";border-radius:14px;position:absolute;inset:-6px -8px}.mastery-row[data-playable]:hover{background:#ffc93c29}.mastery-row[data-playable]:hover .fact-chip{transform:translateY(-1px)}.mastery-row[data-playable]:active .fact-chip{transform:translateY(1px)}.mastery-row[data-playable] .fact-chip{box-shadow:0 2px 0 var(--ink);transition:transform 90ms}.mastery-row[data-playable]:focus-within{background:#ffc93c33}.mastery-row[data-playable] .mode-link:focus-visible:after{outline:3px solid var(--ink);outline-offset:2px}@media (prefers-reduced-motion:reduce){.mastery-row[data-playable] .fact-chip{transition:none}}.focus-row{flex-wrap:wrap;gap:9px;margin:14px 0 4px;display:flex}.focus-button{border:2px solid var(--ink);background:var(--cream);box-shadow:0 2px 0 var(--ink);border-radius:13px;padding:10px 15px;font-size:14px;font-weight:900}.focus-button:hover{background:#ffc93c4d}.focus-button.is-chosen{background:var(--sun)}.suggestion-list{margin:4px 0 0;padding:0;list-style:none}.negatives-switch{text-align:left;gap:3px;margin:4px 0 14px;display:grid}.negatives-switch label{align-items:center;gap:8px;font-weight:900;display:flex}.negatives-switch input{width:18px;height:18px;accent-color:var(--leaf)}.negatives-switch .problem-label{margin:0;font-size:13px}.choice-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;max-width:420px;margin:0 auto 18px;display:grid}.choice-option{border:3px solid var(--ink);background:var(--cream);font-family:var(--font-display), sans-serif;color:var(--ink);cursor:pointer;box-shadow:3px 3px 0 var(--ink);border-radius:16px;padding:18px 10px;font-size:28px}.choice-option:hover:not(:disabled){background:var(--sun)}.choice-option:active:not(:disabled){box-shadow:1px 1px 0 var(--ink);transform:translate(2px,2px)}.choice-option:disabled{cursor:default}.choice-option[data-picked]{background:var(--sun)}.choice-option[data-right]{background:var(--leaf);border-color:var(--leaf);color:var(--cream)}.extra-box{justify-items:center;gap:4px;display:grid}.extra-box .problem-label{margin:0;font-size:12px}.extra-box .answer-input{width:100%}.zero-explainer{text-align:left;max-width:560px}.zero-explainer .session-title{margin-top:24px}.zero-ladder{margin:18px 0}.zero-ladder th{text-align:right;padding-right:12px;font-weight:900}.zero-ladder td{min-width:56px}.zero-question{margin-top:16px}.zero-choices{grid-template-columns:1fr;max-width:none;margin-bottom:0}.zero-choices .choice-option{padding:12px;font-size:18px}.fact-chip{border:2px solid var(--ink);background:var(--sun);border-radius:12px;place-items:center;width:42px;height:42px;font-weight:1000;display:grid}.progress-track{border:2px solid var(--ink);background:#fff;border-radius:999px;height:10px;overflow:hidden}.progress-fill{border-radius:inherit;background:var(--aqua);height:100%}.mastery-label{text-align:right;text-transform:uppercase;font-size:11px;font-weight:1000}.mode-ticket{border:2px solid var(--ink);background:var(--tomato);color:#fff;box-shadow:3px 3px 0 var(--ink);border-radius:18px;padding:18px;position:relative;overflow:hidden}.mode-ticket:after{content:"";border:14px solid #ffffff30;border-radius:50%;width:90px;height:90px;position:absolute;top:-24px;right:-18px}.mode-ticket strong,.mode-ticket span{z-index:1;display:block;position:relative}.mode-ticket strong{font-family:var(--font-display), sans-serif;font-size:22px}.mode-ticket span{margin-top:4px;font-size:13px;font-weight:800}.parent-view{grid-template-columns:1.15fr .85fr;gap:22px;display:grid}.parent-card{border-radius:28px;padding:28px}.parent-card h1,.parent-card h2{font-family:var(--font-display), sans-serif;margin-top:0}.parent-card h1{letter-spacing:-.05em;max-width:650px;font-size:clamp(34px,6vw,62px);line-height:.96}.parent-card h1 span{color:var(--tomato)}.parent-copy{color:#18323db8;max-width:650px;font-size:17px;font-weight:700;line-height:1.55}.setting-list{gap:10px;margin-top:22px;display:grid}.setting-row{border-bottom:2px dashed #18323d29;justify-content:space-between;align-items:center;gap:20px;padding:11px 0;font-weight:900;display:flex}.setting-value{border:2px solid var(--ink);background:var(--sun);border-radius:999px;padding:5px 10px;font-size:12px}.preview-note{border-left:5px solid var(--aqua);color:#18323dad;margin:18px 0 0;padding-left:14px;font-size:13px;font-weight:800}.signup-grid{grid-template-columns:minmax(0,1.25fr) minmax(300px,.55fr);align-items:start;gap:24px;display:grid}.signup-card{background:#fffdf5f5;border-radius:34px 26px 38px 30px;padding:clamp(25px,5vw,50px)}.signup-card h1{font-family:var(--font-display), sans-serif;letter-spacing:-.05em;margin:8px 0 12px;font-size:clamp(36px,6vw,62px);line-height:.98}.signup-intro{color:#18323db3;max-width:650px;margin:0;font-weight:750;line-height:1.5}.signup-form{gap:18px;margin-top:30px;display:grid}.signup-form label{gap:7px;font-weight:950;display:grid}.signup-form label>span{justify-content:space-between;gap:15px;display:flex}.signup-form em{color:#18323d8c;letter-spacing:.08em;text-transform:uppercase;font-size:11px;font-style:normal}.signup-form input:not([type=checkbox]){border:2px solid var(--ink);background:#fff;border-radius:13px;width:100%;padding:12px 14px;font-weight:750;box-shadow:inset 0 -3px #18323d0f}.signup-form input[aria-invalid=true]{border-color:var(--tomato-dark);background:#fff4f0}.signup-form small,.form-error{color:var(--tomato-dark);font-size:12px;font-weight:850}.name-row{grid-template-columns:1fr 1fr;gap:14px;display:grid}.consent-notice{border:2px solid var(--ink);background:#19b7b01c;border-radius:18px;padding:18px}.consent-notice strong{font-family:var(--font-display), sans-serif;font-size:18px}.consent-notice p{color:#18323dc2;margin:9px 0 0;font-size:13px;font-weight:750;line-height:1.55}.consent-check{grid-template-columns:24px 1fr;align-items:start}.consent-check input{width:20px;height:20px;accent-color:var(--aqua-dark);margin-top:2px}.consent-check span{font-size:14px;line-height:1.5}.signup-form .consent-check>span{display:block}.signup-form .consent-check em{letter-spacing:0;text-transform:none;font-size:13px;font-weight:750}.signup-form .primary-action{justify-self:start}.signup-form .primary-action:disabled{cursor:default;opacity:.55}.form-footnote{color:#18323d99;margin:-5px 0 0;font-size:12px;font-weight:750}.welcome-actions+.form-footnote{margin-top:14px}.signup-form+.form-footnote{margin-top:18px;font-size:14px}.enrollment-error{margin-top:18px}.ready-message{border:2px solid var(--ink);background:var(--sun);box-shadow:3px 3px 0 var(--ink);border-radius:16px;gap:3px;margin-top:24px;padding:16px;display:grid}.ready-message span{font-size:13px;font-weight:800}.signup-steps{background:var(--ink);color:#fff;border-radius:24px 34px 28px 22px;padding:28px}.signup-steps .eyebrow{color:var(--sun)}.signup-steps ol{gap:18px;margin:24px 0 0;padding:0;list-style:none;display:grid}.signup-steps li{grid-template-columns:40px 1fr;align-items:center;gap:12px;display:grid}.signup-steps li strong{background:var(--tomato);width:40px;height:40px;font-family:var(--font-display), sans-serif;border:2px solid #fff;border-radius:50%;place-items:center;display:grid}.signup-steps li span{font-size:14px;font-weight:800;line-height:1.45}.safe-note{color:var(--sun);border:2px dashed #ffffff73;border-radius:15px;margin-top:26px;padding:14px;font-size:13px;font-weight:900;line-height:1.45}.parent-action{margin-top:26px}.document-shell{width:min(100% - 32px,920px);margin:0 auto;padding:38px 0 70px}.document-card,.status-card,.setup-card{border:3px solid var(--ink);box-shadow:8px 8px 0 var(--ink);background:#fffdf5f7;border-radius:30px;padding:clamp(25px,6vw,58px)}.document-card h1,.status-card h1,.setup-card h1{font-family:var(--font-display), sans-serif;letter-spacing:-.05em;margin:8px 0 18px;font-size:clamp(36px,7vw,64px);line-height:.98}.document-lead,.status-copy{color:#18323dbd;font-size:17px;font-weight:750;line-height:1.6}.notice-alert{border:2px solid var(--ink);background:var(--sun);border-radius:16px;margin:24px 0;padding:18px;font-weight:850}.notice-section{margin-top:34px}.notice-section h2{font-family:var(--font-display), sans-serif;margin:0 0 10px;font-size:25px}.notice-section p,.notice-section li{color:#18323dc7;font-weight:700;line-height:1.6}.notice-section p{margin:6px 0}.notice-section ul{gap:8px;padding-left:24px;display:grid}.notice-section a,.consent-notice a{color:var(--aqua-dark);text-underline-offset:3px;font-weight:950}.notice-version{color:#18323d8f;margin-top:38px;font-size:12px;font-weight:850}.document-back{color:var(--ink);margin-top:22px;text-decoration:none;display:inline-block}.compact-shell{max-width:680px;padding-top:12vh}.status-card{text-align:center}.status-card .secondary-action,.setup-complete .primary-action{color:var(--ink);margin-top:18px;text-decoration:none;display:inline-block}.setup-shell{max-width:780px}.compact-form{max-width:520px}.setup-complete p{color:#18323dbd;font-weight:750;line-height:1.6}.setup-complete .primary-action{color:#fff}.access-card{border:3px solid var(--ink);box-shadow:7px 7px 0 var(--ink);background:#fffdf5f7;border-radius:30px;margin-top:18px;padding:clamp(24px,6vw,52px)}.access-card h1{font-family:var(--font-display), sans-serif;margin:5px 0 8px;font-size:clamp(36px,7vw,60px);line-height:.96}.access-tabs{border:2px solid var(--ink);background:#fff;border-radius:999px;gap:5px;padding:4px;display:inline-flex}.access-tabs button{cursor:pointer;background:0 0;border:0;border-radius:999px;padding:9px 15px;font-weight:950}.access-tabs button[aria-pressed=true]{background:var(--ink);color:#fff}.access-tabs button:disabled{cursor:default;opacity:.4}.access-message{margin-top:20px}.signup-form select,.delete-form input{border:2px solid var(--ink);background:#fff;border-radius:13px;width:100%;padding:12px 14px;font-weight:800}.handle-picker{grid-template-columns:1fr 1fr;gap:12px;display:grid}.handle-options{grid-template-columns:1fr 1fr;gap:10px;display:grid}.handle-option{cursor:pointer;position:relative;display:block!important}.handle-option input{opacity:0;pointer-events:none;position:absolute}.handle-option span{border:2px solid var(--ink);font-family:var(--font-display), sans-serif;text-align:center;box-shadow:3px 3px 0 var(--ink);background:#fff;border-radius:14px;padding:14px;font-size:18px;display:block!important}.handle-option input:checked+span{background:var(--sun);box-shadow:1px 1px 0 var(--ink);transform:translate(2px,2px)}.player-badge{border:2px solid var(--ink);background:var(--sun);border-radius:999px;padding:8px 13px;font-weight:950}.dashboard-shell{width:min(100% - 32px,1000px)}.dashboard-header{justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px;display:flex}.dashboard-header h1{font-family:var(--font-display), sans-serif;letter-spacing:-.05em;margin:3px 0 0;font-size:clamp(42px,8vw,76px);line-height:.92}.dashboard-grid{grid-template-columns:1.7fr repeat(3,.7fr);gap:14px;display:grid}.dashboard-hero,.stats-card{border:3px solid var(--ink);box-shadow:5px 5px 0 var(--ink);border-radius:24px}.dashboard-hero{background:var(--aqua);padding:28px}.dashboard-hero p{color:#fff;font-family:var(--font-display), sans-serif;margin:0 0 20px;font-size:28px;font-weight:700}.stats-card{background:var(--cream);text-align:center;align-content:center;padding:20px;display:grid}.stats-card span{color:#18323da6;text-transform:uppercase;font-size:11px;font-weight:950}.stats-card strong{font-family:var(--font-display), sans-serif;font-size:38px}.dashboard-links{flex-wrap:wrap;gap:12px 24px;margin:28px 0;display:flex}.dashboard-links a,.access-card a{color:var(--aqua-dark);text-underline-offset:3px;font-weight:950}.invite-share-card{border:3px solid var(--ink);background:var(--sun);box-shadow:5px 5px 0 var(--ink);border-radius:24px;grid-template-columns:1.25fr auto;align-items:center;gap:24px;margin-top:24px;padding:24px 26px;display:grid}.invite-share-card h2{font-family:var(--font-display), sans-serif;margin:2px 0 7px;font-size:28px}.invite-share-card p:not(.eyebrow){color:#18323dc2;max-width:570px;margin:0;font-weight:800;line-height:1.45}.invite-code-box{border:2px solid var(--ink);background:#fff;border-radius:16px;align-items:center;gap:10px;padding:9px 10px 9px 16px;display:flex}.invite-code-box code{white-space:nowrap;font-family:var(--font-display), monospace;letter-spacing:.08em;font-size:clamp(17px,2.4vw,23px);font-weight:900}.invite-code-box .secondary-action{white-space:nowrap}.player-controls{border-top:2px dashed #18323d38;flex-wrap:wrap;align-items:center;gap:12px;padding-top:20px;display:flex}.text-button{color:var(--tomato-dark);cursor:pointer;background:0 0;border:0;font-weight:900;text-decoration:underline}.delete-form{border:2px solid var(--tomato-dark);background:#fff4f0;border-radius:16px;flex:1 0 100%;grid-template-columns:minmax(180px,260px) auto;align-items:center;gap:10px;padding:16px;display:grid}.delete-form p{grid-column:1/-1;margin:0;font-weight:800}.danger-action{border:2px solid var(--ink);background:var(--tomato);color:#fff;cursor:pointer;border-radius:12px;padding:12px 14px;font-weight:950}.best-times{gap:22px;display:grid}.best-times .dashboard-header{margin-bottom:0}.best-times .best-card{padding:clamp(20px,3.2vw,34px)}.best-card-title{font-family:var(--font-display), sans-serif;margin:4px 0 6px;font-size:clamp(24px,4vw,32px)}.best-time{font-family:var(--font-display), sans-serif;font-variant-numeric:tabular-nums;letter-spacing:-.03em;margin:4px 0;font-size:clamp(52px,9vw,80px);line-height:1}.best-card .primary-action{margin-top:14px;display:inline-block}.best-boss-list{text-align:left;gap:10px;margin:18px 0 0;padding:0;list-style:none;display:grid}.best-boss{border-bottom:2px dashed #18323d2e;grid-template-columns:minmax(110px,1fr) repeat(2,minmax(0,1.2fr));align-items:center;gap:10px 16px;padding:10px 4px;display:grid}.best-boss-name{font-family:var(--font-display), sans-serif;font-size:22px}.best-boss-stat{gap:1px;display:grid}.best-boss-stat b{font-family:var(--font-display), sans-serif;font-variant-numeric:tabular-nums;font-size:22px}.best-boss-label,.best-boss-date{color:#18323da6;font-size:12px;font-weight:900}.best-boss-label{text-transform:uppercase;letter-spacing:.04em}.best-boss-wide{color:#18323dbd;grid-column:span 2;font-weight:800}.best-trail-signs{letter-spacing:.08em;font-size:26px}.best-trail-note{text-align:center;margin-top:12px}.best-trail-none{color:#18323dbd;font-weight:800}@media (max-width:560px){.best-boss{grid-template-columns:1fr;gap:8px}.best-boss-stat{grid-template-columns:1fr auto;align-items:center;column-gap:12px}.best-boss-stat b{text-align:right;grid-area:1/2/span 2;font-size:19px}.best-boss-label{grid-area:1/1}.best-boss-date{grid-area:2/1}.best-boss-wide{grid-column:auto}}@keyframes tiny-pop{0%{transform:scale(.2)}70%{transform:scale(1.35)}to{transform:scale(1)}}@media (max-width:820px){.hero-grid,.parent-view,.welcome-grid,.signup-grid{grid-template-columns:1fr}.side-stack{grid-template-columns:repeat(2,minmax(0,1fr))}.monster-poster{min-height:520px}.dashboard-grid{grid-template-columns:1fr 1fr 1fr}.dashboard-hero{grid-column:1/-1}}@media (max-width:560px){.app-shell{width:min(100% - 20px,1180px);padding-top:12px}.brand-mark{width:44px;height:44px;font-size:20px}.brand-name{font-size:20px}.view-button{padding:8px 10px;font-size:13px}.welcome-card{min-height:auto;padding:32px 23px}.welcome-card h1{font-size:45px}.welcome-actions{display:grid}.monster-poster{min-height:480px;padding:25px}.monster-face{width:190px;height:210px}.monster-face strong{font-size:125px}.game-card{min-height:570px;box-shadow:4px 4px 0 var(--ink);border-radius:25px}.game-toolbar{flex-wrap:wrap;align-items:flex-start;padding:27px 18px 15px}.toolbar-actions{flex-wrap:wrap;flex:100%;justify-content:flex-end}.operation-row{padding:0 18px 4px}.problem-stage{min-height:340px;padding-inline:15px}.answer-form{gap:7px}.answer-input{font-size:29px}.submit-button{padding:0 15px}.metric{padding:14px 8px}.metric strong{font-size:20px}.side-stack{grid-template-columns:1fr}.parent-card{padding:21px}.signup-card{padding:25px 19px}.name-row{grid-template-columns:1fr}.document-shell{width:min(100% - 20px,920px);padding-top:18px}.document-card,.status-card,.setup-card{box-shadow:4px 4px 0 var(--ink);padding:25px 20px}.handle-picker,.handle-options{grid-template-columns:1fr}.dashboard-header{flex-direction:column;align-items:start}.dashboard-grid{grid-template-columns:1fr}.dashboard-hero{grid-column:auto}.invite-share-card{grid-template-columns:1fr;padding:21px 18px}.invite-code-box{text-align:center;flex-direction:column;align-items:stretch}.delete-form{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.fact-grid-frame{margin:18px 0 0;padding:4px 0 8px;overflow-x:auto}.fact-grid{border-collapse:separate;border-spacing:3px;table-layout:fixed;font-size:12px;font-weight:900}.fact-grid th{color:#18323d9e;text-transform:uppercase;padding:2px;font-size:11px;font-weight:1000}.fact-grid td{text-align:center;background:var(--cream);color:#18323d4d;border:2px solid #18323d24;border-radius:6px;min-width:26px;height:26px}.fact-grid td[data-band=overTwo]{color:#18323d99;background:#19b7b029}.fact-grid td[data-band=oneToTwo]{color:var(--ink);background:#19b7b070}.fact-grid td[data-band=under1s]{background:var(--leaf);border-color:var(--leaf);color:var(--cream)}.fact-grid td[data-band=off]{background:0 0;border-color:#0000}.fact-grid-key{flex-wrap:wrap;gap:14px;margin:12px 0 0;padding:0;list-style:none;display:flex}.fact-grid-key li{align-items:center;gap:7px;font-size:12px;font-weight:850;display:flex}.fact-grid-swatch{background:var(--cream);border:2px solid #18323d24;border-radius:5px;width:15px;height:15px;display:inline-block}.fact-grid-swatch[data-band=overTwo]{background:#19b7b029}.fact-grid-swatch[data-band=oneToTwo]{background:#19b7b070}.fact-grid-swatch[data-band=under1s]{background:var(--leaf);border-color:var(--leaf)}.table-bars{margin:16px 0 0}.bar-rows{gap:7px;margin:14px 0 0;padding:0;list-style:none;display:grid}.bar-row{grid-template-columns:2.2rem 1fr 3.1rem;align-items:center;gap:10px;display:grid}.bar-label{text-align:right;font-variant-numeric:tabular-nums;font-size:15px;font-weight:900}.bar-track{background:var(--cream);border:2px solid #18323d24;border-radius:11px;height:22px;display:flex;overflow:hidden}.bar-part{height:100%;display:block}.bar-part[data-band=under1s]{background:var(--leaf)}.bar-part[data-band=oneToTwo]{background:#19b7b070}.bar-part[data-band=overTwo]{background:#19b7b029}.bar-part[data-band=none]{background:0 0}.bar-count{color:#18323d9e;font-variant-numeric:tabular-nums;font-size:12px;font-weight:850}.bar-hint{color:#18323d9e;white-space:nowrap;font-style:normal;font-weight:700}.bar-hint:before{content:"· "}p.bar-hint{white-space:normal;margin:6px 0 0;font-size:12px}p.bar-hint:before{content:none}.run-trend{margin:10px 0 0}.trend-flag{color:var(--leaf);margin:0 0 12px;font-weight:900}.run-key{flex-wrap:wrap;gap:6px 16px;margin:0 0 14px;padding:0;list-style:none;display:flex}.run-key li{align-items:center;gap:7px;font-size:12px;font-weight:850;display:flex}.run-swatch{border-radius:4px;width:15px;height:15px;display:inline-block}.run-swatch[data-kind=right]{background:var(--leaf)}.run-swatch[data-kind=pace]{background:var(--aqua)}.run-columns{gap:12px;margin:0;padding:0 2px 6px;list-style:none;display:flex;overflow-x:auto}.run-column{text-align:center;flex:0 0 108px}.run-pair{justify-content:center;align-items:flex-end;gap:6px;height:118px;display:flex}.run-bar{background:#18323d0f;border-radius:8px 8px 4px 4px;align-items:flex-end;width:34px;height:100%;display:flex;position:relative}.run-bar>span{border-radius:7px 7px 0 0;width:100%;display:block}.run-bar[data-kind=right]>span{background:var(--leaf)}.run-bar[data-kind=pace]>span{background:var(--aqua)}.run-bar[data-kind=best]>span{background:var(--sun)}.run-bar>b{color:#18323dad;font-variant-numeric:tabular-nums;white-space:nowrap;margin-top:4px;font-size:11px;font-weight:900;position:absolute;top:100%;left:50%;transform:translate(-50%)}.run-name{margin:22px 0 0;font-size:13px;font-weight:900;line-height:1.25}.run-when{color:#18323d99;margin:2px 0 0;font-size:11px}@media (max-width:480px){.bar-row{grid-template-columns:1.8rem 1fr 2.7rem;gap:7px}.trend-bar{height:70px}}.visually-hidden{white-space:nowrap;clip-path:inset(50%);border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.countdown{text-align:center;place-items:center;gap:6px;padding:40px 0;display:grid}.countdown-number{font-family:var(--font-display), sans-serif;color:var(--tomato);margin:0;font-size:clamp(72px,18vw,140px);font-weight:700;line-height:1}.race-timer{font-family:var(--font-display), sans-serif;font-variant-numeric:tabular-nums;font-size:clamp(28px,5vw,44px);font-weight:700;line-height:1}.row-pick{color:inherit;font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;padding:0;text-decoration:underline}.quiz-paper{border:3px solid var(--ink);background:var(--cream);width:min(1000px,100% - 24px);box-shadow:7px 7px 0 var(--ink);border-radius:6px;margin:18px auto 48px;padding:clamp(14px,3vw,34px)}.quiz-masthead{border-bottom:3px solid var(--ink);flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:10px;margin-bottom:6px;padding-bottom:12px;display:flex}.quiz-masthead h1{font-family:var(--font-display), sans-serif;letter-spacing:-.03em;margin:0;font-size:clamp(20px,3.4vw,32px)}.quiz-score-box{border:2px solid var(--ink);font-family:var(--font-display), sans-serif;font-variant-numeric:tabular-nums;white-space:nowrap;border-radius:5px;padding:5px 12px;font-size:clamp(15px,2.4vw,22px);font-weight:700}.quiz-instruction{text-align:center;color:#18323db3;margin:0 0 10px;font-weight:850}.quiz-grid{border-collapse:separate;border-spacing:clamp(2px,.7vw,8px);table-layout:fixed;width:100%}.quiz-cell{font-family:var(--font-display), sans-serif;font-variant-numeric:tabular-nums;text-align:right;vertical-align:top;border:2px solid #0000;border-radius:7px;padding:clamp(3px,.7vw,7px);font-size:clamp(11px,1.45vw,17px);font-weight:700}.quiz-cell[data-active]{border-color:var(--aqua-dark);background:#19b7b024}.quiz-cell[data-mark=right]{background:#64a83b29}.quiz-cell[data-mark=wrong]{background:#f54d3d21}.quiz-operand{line-height:1.2;display:block}.quiz-second{border-bottom:2px solid var(--ink);padding-bottom:2px}.quiz-answer{min-height:1.5em;color:var(--aqua-dark);padding-top:2px;display:block}.quiz-truth{color:var(--tomato-dark);margin-left:4px;font-style:normal}.quiz-input{width:100%;font:inherit;text-align:right;color:var(--ink);background:#fff;border:0;border-radius:4px;padding:0 2px}.quiz-input::-webkit-outer-spin-button{appearance:none;margin:0}.quiz-input::-webkit-inner-spin-button{appearance:none;margin:0}.quiz-input{appearance:textfield}.quiz-footer{flex-wrap:wrap;align-items:center;gap:12px;margin-top:16px;display:flex}.tent{letter-spacing:0;font-variant-numeric:tabular-nums;grid-template-columns:auto auto;align-items:end;line-height:1;display:inline-grid}.tent-top{min-height:1em;color:var(--aqua-dark);grid-area:1/2;justify-self:end;padding:0 .1em .08em}.tent-divisor{grid-area:2/1;padding-right:.3em}.tent-roof{border-top:.07em solid;grid-area:2/2;padding:.1em .1em 0 .22em;position:relative}.tent-roof:before{content:"";border-right:.07em solid;border-radius:0 50% 50% 0;width:.24em;position:absolute;top:-.07em;bottom:-.06em;left:-.16em}.problem .tent{font-size:.56em}.problem:has(.tent){margin-bottom:14px}.quiz-cell .tent{justify-content:end;display:grid}.quiz-cell .tent-top{justify-self:stretch;min-width:0;min-height:1.3em;padding-bottom:.12em;position:relative}.quiz-cell .tent-top .quiz-input{width:100%;position:absolute;inset:0 0 .12em}.division-form-switch{vertical-align:middle;gap:6px;display:inline-flex}.welcome-actions .division-form-switch{margin-left:8px}.notice-alert+.division-form-switch,.feedback+.division-form-switch{margin-top:6px}.division-form-option{border:2px solid var(--ink);min-width:52px;height:40px;color:var(--ink);font-family:var(--font-display), sans-serif;cursor:pointer;background:#fff;border-radius:12px;place-items:center;padding:0 10px;font-size:18px;font-weight:700;display:grid}.division-form-option[aria-pressed=true]{background:var(--aqua);color:#fff}.tent-mini{font-size:15px}.tent-mini .tent-top{display:none}.race-frame{margin-top:14px;padding:4px 0 10px;overflow-x:auto}.race-grid{border-collapse:separate;border-spacing:clamp(1px,.35vw,4px);table-layout:fixed;width:100%}.race-grid th{color:#18323d99;font-family:var(--font-display), sans-serif;padding:1px;font-size:clamp(9px,1.15vw,14px);font-weight:700}.race-cell{background:var(--cream);color:#18323d73;height:clamp(20px,3vw,34px);font-family:var(--font-display), sans-serif;font-variant-numeric:tabular-nums;text-align:center;border:2px solid #18323d24;border-radius:5px;padding:0;font-size:clamp(9px,1.2vw,15px);font-weight:700}.race-value{min-height:1.2em;line-height:1.2;display:block}.race-value,.race-input{height:100%}.race-cell[data-filled]{color:var(--ink);background:#64a83b33}.race-cell[data-active]{border-color:var(--aqua-dark);background:#19b7b029}.race-cell[data-wrong]{border-color:var(--tomato);background:#f54d3d38}.race-cell[data-ghost]{outline-offset:-2px;background-image:linear-gradient(#8c6ebe38,#8c6ebe38);outline:2px dashed #6b4c9abf}.race-best-line{color:#18323dbd;margin:2px 0 10px;font-size:17px;font-weight:850}.race-best-line[data-new-best]{color:var(--aqua-dark);font-family:var(--font-display), sans-serif;font-size:24px}.race-input{width:100%;height:auto;line-height:1.2;font:inherit;text-align:center;color:var(--ink);background:0 0;border:0;padding:0;display:block}.race-input::-webkit-outer-spin-button{appearance:none;margin:0}.race-input::-webkit-inner-spin-button{appearance:none;margin:0}.race-input{appearance:textfield}.award-card{flex-wrap:wrap;align-items:flex-start;gap:18px;display:flex}.award-body{flex:260px;min-width:0}.award-monster{flex:none}.award-seal{flex:none;margin-left:auto}.award-bar{border:2px solid var(--ink);background:var(--cream);border-radius:999px;height:12px;margin:12px 0 8px;overflow:hidden}.award-bar span{background:var(--leaf);height:100%;display:block}.award-list{margin:8px 0 0;padding-left:20px}.award-list li{margin-bottom:4px;font-weight:800}.certificate-shell{width:min(1000px,100% - 24px);margin:18px auto 48px}.certificate-actions{justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;display:flex}.certificate{aspect-ratio:4/3;text-align:center;background-position:50%;background-repeat:no-repeat;background-size:100% 100%;place-items:center;gap:2px;padding:clamp(30px,6vw,62px);display:grid}.certificate-eyebrow{color:#18323d9e;letter-spacing:.16em;text-transform:uppercase;margin:0;font-size:12px;font-weight:1000}.certificate-title{font-family:var(--font-display), sans-serif;letter-spacing:-.03em;margin:0;font-size:clamp(28px,5.5vw,54px);line-height:1}.certificate-for{color:#18323d99;margin:0;font-size:13px;font-weight:850}.certificate-name{color:var(--tomato);font-family:var(--font-display), sans-serif;margin:0;font-size:clamp(26px,5vw,46px);line-height:1.05}.certificate-subject{font-family:var(--font-display), sans-serif;margin:0;font-size:clamp(20px,3.6vw,34px)}.certificate-figures{align-items:flex-end;gap:clamp(14px,4vw,40px);margin:6px 0;display:flex}.certificate-detail{margin:0;font-size:clamp(12px,1.7vw,16px);font-weight:850}.certificate-date{color:#18323d99;margin:0;font-size:12px;font-weight:800}@media print{.certificate-actions{display:none}body{background:#fff}.certificate-shell{width:100%;margin:0}.certificate{aspect-ratio:auto;-webkit-print-color-adjust:exact;print-color-adjust:exact;min-height:92vh}}.control-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px;margin-bottom:20px;display:grid}.control-card{border:3px solid var(--ink);background:var(--cream);box-shadow:5px 5px 0 var(--ink);border-radius:24px;flex-direction:column;align-items:flex-start;gap:10px;padding:20px;display:flex}.control-card .eyebrow{margin:0}.control-copy{color:#18323db8;margin:0;font-size:13px;font-weight:800;line-height:1.45}.control-card .secondary-action{margin-top:auto}.control-form{gap:10px;width:100%;display:grid}.control-form label{gap:6px;font-size:13px;font-weight:900;display:grid}.control-form input{border:2px solid var(--ink);background:#fff;border-radius:12px;width:100%;padding:9px 11px;font-weight:800}.control-card .consent-check{font-size:13px}.control-card .consent-check em{color:#18323d99;font-size:11px;font-style:normal;font-weight:750}.avatar-editor{text-align:left;gap:16px;display:grid}@media (min-width:720px){.avatar-editor{grid-template-columns:auto minmax(0,1fr);align-items:start}.avatar-preview{position:sticky;top:12px}}.avatar-preview{border:3px solid var(--ink);box-shadow:3px 3px 0 var(--ink);background:#ffc93c38;border-radius:18px;place-items:center;padding:10px;display:grid}.avatar-controls{gap:2px;display:grid}.avatar-controls .problem-label{margin:10px 0 4px}.swatch-row{flex-wrap:wrap;gap:6px;display:flex}.swatch{border:2px solid var(--ink);background:var(--cream);width:34px;height:34px;color:var(--ink);cursor:pointer;border-radius:10px;padding:0;font-size:13px;font-weight:1000}.swatch[aria-pressed=true]{box-shadow:0 0 0 3px var(--leaf)}.swatch-number:hover{background:var(--sun)}.avatar-doll{flex:none;display:inline-block;position:relative}.avatar-doll-stack,.avatar-doll-tint,.avatar-doll-fill,.avatar-doll-layer{width:100%;height:100%;position:absolute;inset:0}.avatar-doll-stack[data-mirror]{transform:scaleX(-1)}.avatar-doll-tint{isolation:isolate}.avatar-doll-fill{-webkit-mask-size:100% 100%;mask-size:100% 100%;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}.avatar-doll-shade{mix-blend-mode:multiply}.avatar-doll-layer{object-fit:contain;pointer-events:none;-webkit-user-select:none;user-select:none}.avatar-rig{flex:none;display:inline-block;position:relative}.avatar-rig-canvas{width:100%;height:100%;position:absolute;inset:0}.avatar-rig-still{position:absolute;bottom:0;left:0;right:0}.rig-controls{flex-wrap:wrap;gap:8px;margin-bottom:12px;display:flex}.customizer{text-align:left;gap:16px;display:grid}@media (min-width:720px){.customizer{grid-template-columns:auto minmax(0,1fr);align-items:start}}.customizer-preview{flex-direction:column;gap:12px;display:flex}.customizer-moves{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.customizer-moves .customizer-tile:disabled{opacity:.45;cursor:not-allowed}.customizer-moves-hint{text-align:center;margin:0;font-size:.85rem}.customizer-figure{display:block}@media (min-width:720px){.customizer-preview{flex-direction:row;align-items:center;position:sticky;top:12px}.customizer-moves{flex-flow:column;width:110px}}.customizer-stage{border:3px solid var(--ink);box-shadow:3px 3px 0 var(--ink);background:#ffc93c38;border-radius:18px;justify-items:center;gap:8px;padding:12px;display:grid}.customizer-turn{gap:8px;display:flex}.customizer-tabs{flex-wrap:wrap;gap:6px;display:flex}.customizer-tab{border:2px solid var(--ink);background:var(--cream);color:var(--ink);cursor:pointer;border-radius:999px;padding:8px 14px;font-weight:800}.customizer-tab[aria-selected=true]{background:var(--sun)}.customizer-panel{margin-top:10px}.customizer-section+.customizer-section{margin-top:14px}.customizer-heading{margin:0 0 6px;font-weight:800}.customizer-soon{color:#18323db3;margin:0}.customizer-tiles,.customizer-colors{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.customizer-colors{margin-top:8px}.customizer-tile{border:2px solid var(--ink);background:var(--cream);color:var(--ink);cursor:pointer;border-radius:12px;padding:8px 12px;font-weight:700}.customizer-tile[aria-pressed=true]{background:var(--sun);box-shadow:0 0 0 3px var(--leaf)}.customizer-tile:disabled{cursor:not-allowed;opacity:.6}.customizer-tile-number{text-align:center;min-width:44px;min-height:44px;padding:8px;font-size:1.1rem}.swatch-large{border-radius:50%;width:42px;height:42px}.customizer-any-color{align-items:center;gap:6px;font-weight:700;display:inline-flex}.customizer-any-color input{border:2px solid var(--ink);border-radius:8px;width:42px;height:34px;padding:0}.customizer-views{flex-wrap:wrap;align-items:end;gap:16px;display:flex}.customizer-page{width:min(1100px,100% - 32px);margin:0 auto 32px}.dashboard-avatar{justify-items:center;gap:12px;display:grid}.signup-avatar{border:2px dashed #18323d4d;border-radius:16px;align-items:center;gap:14px;padding:10px 12px;display:flex}.signup-avatar .problem-label{margin:0 0 6px}.race-keypad{gap:8px;width:min(280px,100%);margin:14px auto 0;display:grid}.race-keypad-row{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.race-key{border:3px solid var(--ink);background:var(--cream);font-family:var(--font-display), sans-serif;color:var(--ink);cursor:pointer;box-shadow:3px 3px 0 var(--ink);touch-action:manipulation;border-radius:14px;padding:16px 0;font-size:24px}.race-key:hover{background:var(--sun)}.race-key:active{box-shadow:1px 1px 0 var(--ink);transform:translate(2px,2px)}.race-keypad-row:last-child:has(.race-key:nth-child(2):last-child){grid-template-columns:repeat(3,1fr)}.race-keypad-row:last-child:has(.race-key:nth-child(2):last-child) .race-key:first-child{grid-column:2}.directory-actions{flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 14px 52px;display:flex}.claim-link{overflow-wrap:anywhere;background:var(--cream);-webkit-user-select:all;user-select:all;border:2px dashed #18323d59;border-radius:10px;flex:260px;min-width:0;padding:6px 8px;font-size:12px}.invite-code{background:var(--cream);font-family:var(--font-display), sans-serif;letter-spacing:.08em;text-align:center;-webkit-user-select:all;user-select:all;border:2px dashed #18323d59;border-radius:12px;margin:10px 0 0;padding:10px;font-size:22px}.avatar-sprite{place-items:center;display:inline-grid}.avatar-sprite>*{grid-area:1/1}.duel-arena{grid-template-columns:1fr auto 1fr;align-items:stretch;gap:14px;margin:18px 0;display:grid}.duel-fighter{border:3px solid var(--ink);background:var(--cream);box-shadow:4px 4px 0 var(--ink);cursor:pointer;border-radius:20px;flex-direction:column;align-items:center;gap:8px;padding:18px 12px;display:flex}.duel-fighter:disabled,.duel-same:disabled{cursor:default}.duel-fighter[data-winner],.duel-same[data-winner]{background:var(--sun)}.duel-monster{object-fit:contain;image-rendering:auto;width:auto;max-width:100%;height:104px;transition:transform .18s ease-out,filter .18s ease-out}.duel-monster[data-beaten]{filter:saturate(.45)brightness(.88);transform:translateY(8px)scale(.92)}.duel-fighter[data-winner] .duel-monster{transform:translateY(-6px)scale(1.04)}@media (prefers-reduced-motion:reduce){.duel-monster{transition:none}.lesson-teacher-figure{transition:none;animation:none}.lesson-baton{transition:none}.lesson-teacher-figure[data-pose=point],.lesson-teacher-figure[data-pose=think]{transform:none}}.duel-sum{font-family:var(--font-display), sans-serif;font-size:clamp(28px,5vw,44px);font-weight:700}.duel-value{min-height:1.4em;color:var(--aqua-dark);font-size:20px;font-weight:700}.duel-same{border:3px solid var(--ink);background:var(--paper);cursor:pointer;border-radius:999px;align-self:center;padding:12px 16px;font-weight:700}@media (max-width:560px){.duel-arena{grid-template-columns:1fr}}.balance-scale{margin:18px 0 8px}.balance-beam{flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;display:flex}.balance-pan{border:3px solid var(--ink);background:var(--cream);min-width:9rem;font-family:var(--font-display), sans-serif;text-align:center;box-shadow:4px 4px 0 var(--ink);border-radius:0 0 22px 22px;padding:14px 18px;font-size:clamp(26px,5vw,40px);font-weight:700}.balance-pan b{color:var(--tomato-dark)}.balance-equals{font-size:40px;font-weight:700}.balance-stand{background:var(--ink);border-radius:0 0 6px 6px;width:12px;height:34px;margin:0 auto}.balance-scale[data-state=correct] .balance-pan{background:var(--sun)}.bridge-frames{flex-wrap:wrap;justify-content:center;gap:14px;margin:14px 0;display:flex}.ten-frame{border:3px solid var(--ink);background:var(--cream);border-radius:12px;grid-template-columns:repeat(5,28px);gap:6px;padding:8px;display:grid}.ten-cell{border:2px dashed #18323d33;border-radius:50%;width:28px;height:28px}.ten-cell[data-state=have]{border:2px solid var(--aqua-dark);background:var(--aqua)}.ten-cell[data-state=move]{border:2px solid var(--ink);background:var(--sun)}.ten-cell[data-state=gone]{border:2px solid var(--tomato);opacity:.45;background:0 0}.bridge-area{border:3px solid var(--ink);border-radius:12px;min-height:64px;margin:14px 0;display:flex;overflow:hidden}.bridge-area>div{background:var(--cream);justify-content:center;align-items:center;padding:8px;font-weight:700;display:flex}.bridge-area>div+div{border-left:3px dashed var(--ink);background:var(--paper)}.bridge-steps{gap:6px;margin:10px 0;display:grid}.bridge-step{font-family:var(--font-display), sans-serif;margin:0;font-size:24px;font-weight:700}.bridge-step[data-done]{color:var(--aqua-dark)}.family-triangle{text-align:center;grid-template-columns:1fr 1fr;gap:10px 40px;width:min(18rem,100%);margin:14px auto;display:grid}.family-triangle>span{border:3px solid var(--ink);background:var(--cream);min-height:64px;font-family:var(--font-display), sans-serif;border-radius:50%;place-items:center;font-size:30px;font-weight:700;display:grid}.family-triangle>.family-whole{background:var(--sun);grid-column:1/-1;justify-self:center;width:84px;height:84px}.family-sentences{gap:10px;margin:12px 0;display:grid}.family-sentence{flex-wrap:wrap;align-items:center;gap:8px;margin:0;font-size:24px;font-weight:700;display:flex}.family-sentence input{border:3px solid var(--ink);background:var(--cream);width:4.5rem;color:var(--ink);border-radius:10px;padding:4px 8px;font-size:22px}.family-sentence[data-mark=right] input{background:var(--sun)}.family-sentence[data-mark=wrong] input{border-color:var(--tomato)}.trail-stage{padding:4px 30px 26px}.trail-heading{font-family:var(--font-display), sans-serif;letter-spacing:-.02em;margin:0 0 6px;font-size:clamp(24px,3.2vw,32px)}.trail-copy{color:#18323dc7;margin:0 0 10px;font-weight:800}.trail-cards{grid-template-columns:repeat(auto-fit,minmax(126px,1fr));gap:14px;padding:10px 6px 12px;display:grid}.trail-card{border:3px solid var(--ink);background:var(--cream);color:var(--ink);cursor:pointer;box-shadow:3px 3px 0 var(--ink);border-radius:20px 24px 18px 22px;justify-items:center;gap:3px;padding:10px 8px 9px;font-weight:900;display:grid;position:relative}.trail-card[aria-pressed=true]{box-shadow:1px 1px 0 var(--ink);background:#dff5f2;transform:translate(2px,2px)}.trail-card[data-locked]{cursor:default;background:#fff1c7}.trail-card-art{place-items:center;height:80px;display:grid}.trail-card-sign{font-family:var(--font-display), sans-serif;font-size:30px;line-height:1}.trail-card-way{font-size:13px}.trail-card-way[data-way=up]{color:#3f7d1f}.trail-card-way[data-way=down]{color:var(--aqua-dark)}.trail-card-name{font-size:16px}.trail-card-tag{color:#18323d99;letter-spacing:.06em;text-transform:uppercase;font-size:11px}.trail-card[aria-pressed=true]:not([data-locked]) .trail-card-tag{color:#3f7d1f}.trail-card[data-wave]:after{border:3px solid var(--sun);content:"";pointer-events:none;border-radius:26px;animation:1.8s ease-in-out infinite trail-glow;position:absolute;inset:-7px;box-shadow:0 0 14px 3px #ffc93ccc}.trail-card[data-wave] .trail-card-art>.trail-friend{transform-origin:50% 90%;animation:1.8s ease-in-out infinite trail-wave}@keyframes trail-glow{0%,to{opacity:.3}50%{opacity:1}}@keyframes trail-wave{0%,to{transform:rotate(0)}20%{transform:rotate(-8deg)translateY(-4px)}40%{transform:rotate(7deg)translateY(-2px)}60%{transform:rotate(-5deg)translateY(-3px)}80%{transform:rotate(0)}}.trail-hint{min-height:1.5em;margin:2px 0 0;font-weight:900}.trail-actions{align-items:center;margin-top:12px}.trail-actions .primary-action:disabled{cursor:default;opacity:.5}.trail-howto-link{color:var(--aqua-dark);text-underline-offset:3px;cursor:pointer;background:0 0;border:0;padding:6px 4px;font-weight:900;text-decoration:underline}.trail-friend{flex:none;display:inline-block;position:relative}.trail-friend-frame{pointer-events:none;-webkit-user-select:none;user-select:none;max-width:none;position:absolute;top:50%;left:50%;translate:-50% -50%}.trail-friend[data-mirror] .trail-friend-frame{transform:scaleX(-1)}.trail-friend[data-anchor=feet] .trail-friend-frame{top:auto;bottom:0;translate:-50%}.trail-friend[data-frames] .trail-friend-frame{opacity:0;animation:trail-flip-4 var(--cycle) linear infinite}.trail-friend[data-frames="3"] .trail-friend-frame{animation-name:trail-flip-3}.trail-friend[data-frames="2"] .trail-friend-frame{animation-name:trail-flip-2}@keyframes trail-flip-4{0%,24.9%{opacity:1}25%,to{opacity:0}}@keyframes trail-flip-3{0%,33.2%{opacity:1}33.3%,to{opacity:0}}@keyframes trail-flip-2{0%,49.9%{opacity:1}50%,to{opacity:0}}.trail-howto{grid-template-columns:280px minmax(0,1fr);align-items:center;gap:16px 28px;margin:10px 0 4px;display:grid}.trail-howto-steps{gap:10px;margin:0;padding-left:1.5em;font-size:20px;font-weight:900;line-height:1.25;display:grid}.trail-demo{border:3px solid var(--ink);background:linear-gradient(#a9dcf2,#e8f6fb);border-radius:20px;width:280px;height:150px;position:relative;overflow:hidden}.trail-demo-ground{position:absolute;inset:0}.trail-demo-land{fill:#7cbd4e}.trail-demo-path{fill:none;stroke:#ecd59f;stroke-width:10px;stroke-linecap:round}.trail-demo-new{animation:5s infinite trail-demo-stone}.trail-demo-friend{justify-items:center;gap:2px;display:grid;position:absolute;translate:-50% -100%}.trail-demo-sign{font-size:18px}.trail-demo-solver{transform:translate(var(--from-x), var(--from-y));animation:5s infinite trail-demo-hop;position:absolute;top:0;left:0}.trail-demo-input{border:3px solid var(--ink);width:58px;height:34px;font-family:var(--font-display), sans-serif;background:#fff;border-radius:10px;justify-content:center;align-items:center;font-size:20px;font-weight:700;display:flex;position:absolute;top:8px;right:8px}.trail-demo-digit{opacity:0}.trail-demo-digit-1{animation:5s infinite trail-demo-digit-1}.trail-demo-digit-2{animation:5s infinite trail-demo-digit-2}@keyframes trail-demo-digit-1{0%,24%{opacity:0}25%,49%{opacity:1}50%,to{opacity:0}}@keyframes trail-demo-digit-2{0%,35%{opacity:0}36%,49%{opacity:1}50%,to{opacity:0}}@keyframes trail-demo-stone{0%,47%{opacity:0}50%,92%{opacity:1}97%,to{opacity:0}}@keyframes trail-demo-hop{0%{opacity:0;transform:translate(var(--from-x), var(--from-y))}5%,49%{opacity:1;transform:translate(var(--from-x), var(--from-y))}58%{transform:translate(calc((var(--from-x) + var(--to-x)) / 2), var(--mid-y))}66%,92%{opacity:1;transform:translate(var(--to-x), var(--to-y))}98%,to{opacity:0;transform:translate(var(--to-x), var(--to-y))}}.trail-stage-walk{padding-top:0}.trail-status{color:#18323db3;justify-content:center;align-items:center;gap:14px;margin:0 0 8px;font-weight:900;display:flex}.trail-clock{color:var(--ink);font-family:var(--font-display), sans-serif;font-variant-numeric:tabular-nums;font-weight:700}.trail-best-chip{font-variant-numeric:tabular-nums;border:2px dashed #18323d59;border-radius:999px;padding:1px 10px;font-size:13px}.trail-view{border:3px solid var(--ink);isolation:isolate;background:linear-gradient(#9fd6ef,#d3eef8 62%,#e8f6fb);border-radius:22px;height:clamp(200px,42vh,380px);position:relative;overflow:hidden}.trail-view[data-phase=done]{height:clamp(170px,32vh,300px)}.trail-hills{opacity:.8;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 480 100' preserveAspectRatio='none'%3E%3Cpath d='M0 30 C60 8 120 10 180 26 S300 4 360 20 S440 36 480 30 V100 H0Z' fill='%23b4dc98'/%3E%3C/svg%3E") bottom/480px 100% repeat-x;width:calc(120% + 900px);height:64%;transition:transform .6s cubic-bezier(.3,.7,.3,1);position:absolute;bottom:0;left:-10%}.trail-world{transform-origin:0 0;will-change:transform;transition:transform .6s cubic-bezier(.3,.7,.3,1);position:absolute;top:0;left:0}.trail-ground{position:absolute;top:0;left:0;overflow:visible}.trail-hollow{fill:#4b3625}.trail-land{fill:#8a6844}.trail-verge{fill:none;stroke:#6fb442;stroke-width:46px;stroke-linecap:round}.trail-path-edge{fill:none;stroke:#b3935c;stroke-width:20px;stroke-linecap:round}.trail-path-line{fill:none;stroke:#efd9a4;stroke-width:14px;stroke-linecap:round}.trail-zero{stroke:#ffffffbf;stroke-dasharray:8 8;stroke-width:2px}.trail-zero-tag{color:#fff;font-family:var(--font-display), sans-serif;background:#18323db3;border-radius:999px;padding:0 7px;font-size:14px;font-weight:700;line-height:20px;transition:top .6s cubic-bezier(.3,.7,.3,1);position:absolute;left:6px;translate:0 -50%}.trail-stone-side{fill:#66727a}.trail-stone-top{fill:#cfd6da;stroke:var(--ink);stroke-width:2.5px}.trail-stone[data-start] .trail-stone-top{fill:#e6dccb}.trail-stone[data-missed] .trail-stone-top{fill:#ffd3cc}.trail-stone[data-here] .trail-stone-top{fill:var(--sun)}.trail-stone-number{fill:var(--ink);font-family:var(--font-display), sans-serif;text-anchor:middle;font-size:19px;font-weight:700}.trail-mover{width:0;height:0;transition:transform .45s cubic-bezier(.3,.7,.3,1);position:absolute;top:0;left:0}.trail-mover-friend{z-index:1}.trail-mover-ghost{z-index:2;opacity:.36;transition-duration:.8s}.trail-mover-solver{z-index:3}.trail-friend-stand{line-height:0;position:absolute;left:0;translate:-50%}.trail-hop{display:block}.trail-hop[data-hop=a]{animation:.45s ease-out trail-hop-a}.trail-hop[data-hop=b]{animation:.45s ease-out trail-hop-b}.trail-hop[data-first]{animation:none}@keyframes trail-hop-a{0%,to{transform:translateY(0)}45%{transform:translateY(-34px)}}@keyframes trail-hop-b{0%,to{transform:translateY(0)}45%{transform:translateY(-34px)}}.trail-solver{display:block;position:relative}.trail-walker circle,.trail-walker path:first-of-type{fill:var(--aqua);stroke:var(--ink);stroke-width:2px}.trail-walker path:nth-of-type(2){fill:none;stroke:var(--ink);stroke-linecap:round;stroke-width:4px}.trail-sign{justify-items:center;display:grid;position:absolute;left:0;translate:-50%}.trail-sign-board{color:var(--ink);font-family:var(--font-display), sans-serif;white-space:nowrap;background:#f6e3b4;border:3px solid #6b4f33;border-radius:9px;padding:1px 10px;font-size:26px;font-weight:700;box-shadow:2px 2px #18323d4d}.trail-sign-post{background:#6b4f33;width:5px;height:12px}.trail-log{fill:#7a4a26;stroke:#3d2412;stroke-width:2px}.trail-fire-ring{fill:#ffbe5059}.trail-flame-outer{fill:#ff9a3c}.trail-flame-inner{fill:#ffe066}.trail-flames{transform-box:fill-box;transform-origin:50% 100%;animation:.8s ease-in-out infinite alternate trail-flicker}@keyframes trail-flicker{0%{transform:scale(1)}to{transform:scale(.9,1.12)}}.trail-ask{flex-wrap:wrap;justify-content:center;align-items:center;gap:12px 16px;margin-top:12px;display:flex}.trail-problem{margin:0;font-size:clamp(44px,6vw,66px)}.trail-equals{color:#18323d73}.trail-answer{width:150px;padding:8px 12px;font-size:34px}.trail-pad-toggle{padding:8px 12px;font-size:13px}.trail-feedback{text-align:center;min-height:28px;margin:6px 0 0}.trail-counting .problem-stage{min-height:0;padding:4px 0 0}.trail-counting .countdown-number{font-size:64px}.trail-finish{text-align:center;margin:12px 0 0}.trail-finish-time{margin:0;font-size:22px;font-weight:800}.trail-finish-best{margin:4px 0 0;font-weight:900}.trail-finish-best[data-new-best]{color:#3f7d1f;font-size:20px}.trail-footprints{flex-wrap:wrap;justify-content:center;gap:6px;margin:10px 0 0;display:flex}.trail-print{border:2px solid var(--ink);background:var(--cream);text-align:center;border-radius:999px;min-width:2.4rem;padding:3px 8px;font-weight:700}.trail-print[data-missed]{background:#ffd3cc}@media (prefers-reduced-motion:reduce){.trail-card[data-wave]:after{opacity:1;animation:none}.trail-card[data-wave] .trail-card-art>.trail-friend,.trail-friend[data-frames] .trail-friend-frame{animation:none}.trail-friend[data-frames] .trail-friend-frame:first-child{opacity:1}.trail-demo-solver{transform:translate(var(--to-x), var(--to-y));animation:none}.trail-demo-new,.trail-demo-digit{opacity:1;animation:none}.trail-hop[data-hop],.trail-flames{animation:none}.trail-world,.trail-hills,.trail-mover{transition-duration:10ms}}@media (max-height:800px) and (min-width:821px){.trail-view{height:clamp(180px,38vh,300px)}.trail-view[data-phase=done]{height:clamp(150px,28vh,240px)}.trail-ask{margin-top:8px}.trail-problem{font-size:48px}.trail-answer{padding:6px 12px;font-size:30px}}@media (max-width:640px){.trail-stage{padding:4px 14px 20px}.trail-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.trail-howto{grid-template-columns:1fr;justify-items:center}.trail-howto-steps{font-size:18px}.trail-view{height:clamp(190px,34vh,300px)}}@media (max-height:460px) and (max-width:940px){.trail-view{height:150px}.trail-view[data-phase=done]{height:130px}.trail-status{margin-bottom:4px}.trail-ask{margin-top:6px}.trail-problem{font-size:38px}.trail-answer{width:120px;padding:4px 10px;font-size:26px}}.mode-group{margin-top:18px}.mode-group+.mode-group{border-top:3px dashed #18323d2e;padding-top:14px}.mode-group-title{color:var(--aqua-dark);font-family:var(--font-display), sans-serif;margin:0;font-size:20px}.mode-group-blurb{margin:2px 0 8px}.accessory-tile{align-items:center;gap:6px;display:inline-flex}.accessory-choices{border:2px dashed var(--aqua-dark);border-radius:12px;margin-top:12px;padding:12px}.customizer-tile[aria-expanded=true]{background:var(--sun)}.accessory-mark{font-size:.95rem;line-height:1}.accessory-tile[data-soon]{opacity:.75;border-style:dashed}.unlock-summary{flex-wrap:wrap;gap:6px 14px;margin:4px 0 10px;font-weight:800;display:flex}.unlock-summary a{color:inherit;white-space:nowrap;text-decoration:none}.unlock-summary a+a:before{content:"·";color:#18323d73;margin-right:14px}.unlock-summary a:hover strong,.unlock-summary a:focus-visible strong{text-decoration:underline}.reward-soon{color:var(--aqua-dark);margin:0;font-size:12px;font-weight:850}.accessory-mark[data-earned]{background:var(--leaf);width:20px;height:20px;color:var(--cream);border-radius:50%;place-items:center;font-size:.8rem;font-weight:900;display:inline-grid}.accessory-tier{border:2px solid var(--ink);background:var(--cream);color:var(--ink);letter-spacing:.04em;text-transform:uppercase;vertical-align:middle;border-radius:999px;padding:1px 8px;font-size:.72rem;font-weight:800;display:inline-block}.accessory-tier[data-tier=easy]{background:color-mix(in srgb, var(--aqua) 30%, var(--cream))}.accessory-tier[data-tier=medium]{background:color-mix(in srgb, var(--sun) 55%, var(--cream))}.accessory-tier[data-tier=hard]{background:color-mix(in srgb, var(--tomato) 35%, var(--cream))}.unlock-box{border:3px solid var(--ink);background:var(--cream);border-radius:16px;align-items:flex-start;gap:14px;margin-top:10px;padding:12px 14px;display:flex}.unlock-box[data-earned]{border-color:var(--leaf)}.unlock-icon{border:3px solid var(--ink);background:var(--paper);border-radius:50%;flex:none;place-items:center;width:56px;height:56px;font-size:1.6rem;display:grid}.unlock-box[data-earned] .unlock-icon{border-color:var(--leaf);background:var(--leaf);color:var(--cream);font-size:2.2rem;font-weight:900}.unlock-body{gap:6px;min-width:0;display:grid}.unlock-body p{margin:0}.unlock-body .compact-action{justify-self:start}.unlock-goal{font-weight:700}.unlock-bar{border:2px solid var(--ink);background:var(--paper);border-radius:999px;height:12px;display:block;overflow:hidden}.unlock-bar>span{background:var(--leaf);height:100%;display:block}.unlock-hold{border:2px dashed var(--ink);background:var(--paper);border-radius:14px;justify-items:start;gap:8px;margin:12px 0 0;padding:10px 14px;display:grid}.unlock-hold p{margin:0}.goal-strip{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;margin:0 0 14px;display:grid}.goal-card{border:3px solid var(--ink);background:var(--cream);color:var(--ink);border-radius:16px;align-items:flex-start;gap:10px;padding:10px 12px;text-decoration:none;display:flex}.goal-card:hover,.goal-card:focus-visible{background:color-mix(in srgb, var(--sun) 35%, var(--cream))}.goal-card[data-earned]{border-color:var(--leaf)}.goal-card-empty{border-style:dashed}.goal-icon{border:2px solid var(--ink);background:var(--paper);border-radius:50%;flex:none;place-items:center;width:40px;height:40px;font-size:1.2rem;display:grid}.goal-card[data-earned] .goal-icon{border-color:var(--leaf);background:var(--leaf);color:var(--cream);font-size:1.6rem;font-weight:900}.goal-text{gap:4px;min-width:0;display:grid}.goal-text .eyebrow{margin:0}.accessory-unlock{z-index:50;border:3px solid var(--ink);background:var(--cream);width:min(320px,100% - 32px);color:var(--ink);box-shadow:4px 4px 0 var(--ink);border-radius:20px;gap:8px;padding:14px 16px;display:grid;position:fixed;bottom:16px;right:16px}.accessory-unlock .eyebrow,.accessory-unlock .side-title,.accessory-unlock p,.accessory-unlock .welcome-actions{margin:0}.accessory-unlock-pictures{justify-content:center;align-items:flex-end;gap:10px;display:flex}.accessory-unlock-closeup{border:2px solid var(--ink);background:var(--paper);border-radius:50%;width:130px;height:130px;display:block;overflow:hidden}.accessory-unlock-closeup .avatar-doll{margin:-30px 0 0 -48px}.accessory-unlock-icon{place-items:center;display:grid}.accessory-unlock-icon img{width:104px;height:104px;image-rendering:pixelated}.accessory-unlock-goal{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.accessory-check{background:var(--leaf);width:24px;height:24px;color:var(--cream);border-radius:50%;place-items:center;font-weight:900;display:inline-grid}@media (max-width:640px){.accessory-unlock{top:12px;bottom:auto}.accessory-unlock-closeup{display:none}}.sharing-card{margin-bottom:20px}.sharing-form{gap:12px;width:100%;max-width:560px;display:grid}.sharing-solvers{border:0;flex-wrap:wrap;gap:8px 20px;margin:0;padding:0;display:flex}.sharing-solvers legend{margin-bottom:6px;font-size:13px;font-weight:900}.sharing-note{gap:6px;font-size:13px;font-weight:900;display:grid}.sharing-note em{color:#18323d99;font-style:normal;font-weight:750}.sharing-note input{border:2px solid var(--ink);background:#fff;border-radius:12px;width:100%;padding:9px 11px;font-weight:800}.share-link-box{margin-top:14px}.share-link-box code{overflow-wrap:anywhere;white-space:normal;letter-spacing:0;min-width:0;font-size:14px}.sharing-list{gap:8px;margin-top:14px;display:grid}.sharing-row{border-top:2px dashed #18323d38;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding-top:8px;font-weight:800;display:flex}.join-choices{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));align-items:start;gap:24px;display:grid}.join-choices h2{margin:0;font-size:20px}.join-actions{flex-wrap:wrap;align-items:center;gap:14px;display:flex}.sharing-form,.sharing-list{text-align:left;max-width:560px;margin-inline:auto}.rewards-heading{font-family:var(--font-display), sans-serif;margin:30px 0 12px;font-size:28px}.rewards-empty{text-align:left;margin:0 0 14px}.rewards-print{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;display:grid}.reward-certificates{gap:8px;width:100%;display:grid}.reward-certificate{grid-template-columns:44px 1fr auto;align-items:center;gap:10px;font-size:14px;display:grid}.reward-certificate .text-link{color:var(--aqua-dark);font-weight:950}.reward-group{margin:0 0 26px}.reward-group-title{flex-wrap:wrap;align-items:center;gap:10px;margin:0 0 12px;font-size:17px;display:flex}.reward-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;display:grid}.reward-tile{border:3px solid var(--ink);background:var(--cream);text-align:center;box-shadow:4px 4px 0 var(--ink);border-radius:20px;align-content:start;justify-items:center;gap:6px;padding:14px;display:grid;position:relative}.reward-tile[data-earned]{border-color:var(--leaf);box-shadow:4px 4px 0 var(--leaf)}.reward-tile h4{margin:0;font-size:15px}.reward-tile p{margin:0}.reward-tile .unlock-bar{width:100%;display:block}.reward-goal{font-size:13px;font-weight:800}.reward-mark{font-size:18px;line-height:1;position:absolute;top:8px;right:10px}.reward-tile[data-earned] .reward-mark{color:var(--leaf);font-size:24px;font-weight:950}.reward-picture{background:#fff;border-radius:16px;justify-content:center;width:140px;max-width:100%;height:150px;display:flex;overflow:hidden}.reward-picture .avatar-doll{margin-top:var(--reward-top,0)}.reward-picture-soon{color:#18323d99;align-items:center;padding:12px;font-size:12px;font-weight:850}.sticker-shell{width:min(1000px,100% - 32px);margin:18px auto 48px}.sticker-tip{margin:0 0 16px;font-weight:800}.sticker-sheet{grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:16px;display:grid}.sticker{aspect-ratio:1;background:#fff;border:2px dashed #18323d59;border-radius:50%;align-content:center;justify-items:center;gap:2px;margin:0;display:grid;overflow:hidden}.sticker .reward-picture{background:0 0;width:120px;height:112px}.sticker figcaption{text-align:center;max-width:78%;font-size:12px;font-weight:900;line-height:1.2}.sticker-award{width:112px;height:104px;display:block;position:relative}.sticker-monster{margin:0 auto;display:block}.sticker-seal{position:absolute;bottom:0;right:0}@media print{.sticker-tip{display:none}.sticker-shell{width:100%;margin:0}.sticker-sheet{grid-template-columns:repeat(4,1fr);gap:.2in}.sticker{break-inside:avoid;-webkit-print-color-adjust:exact;print-color-adjust:exact}}.settings-form{text-align:left;gap:18px;max-width:640px;margin-inline:auto;display:grid}.settings-section{border:0;gap:8px;min-width:0;margin:0;padding:0;display:grid}.settings-section legend{margin-bottom:4px;padding:0;font-size:15px;font-weight:950}.settings-hint{color:#18323d99;margin:0;font-size:12px;font-weight:750}.settings-operations{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:8px;display:grid}.settings-operation{border:2px solid var(--ink);background:#fff;border-radius:14px}.settings-operation summary{cursor:pointer;align-items:center;gap:10px;padding:9px 12px;font-weight:900;list-style:none;display:flex}.settings-operation summary::-webkit-details-marker{display:none}.settings-operation summary:after{content:"▾"}.settings-operation[open] summary:after{content:"▴"}.settings-operation-state{color:#18323d99;margin-left:auto;font-size:12px;font-weight:850}.settings-operation[data-off] .settings-operation-state{color:var(--tomato-dark)}.settings-checks{gap:6px;padding:0 12px 10px;display:grid}.settings-check{cursor:pointer;align-items:flex-start;gap:8px;font-size:14px;font-weight:850;display:flex}.settings-check input{width:18px;height:18px;accent-color:var(--aqua-dark);flex:none;margin:2px 0 0}.settings-check em{color:#18323d99;font-size:12px;font-style:normal;font-weight:750}.settings-numbers{grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;display:grid}.settings-number{gap:4px;font-size:13px;font-weight:900;display:grid}.settings-number input{border:2px solid var(--ink);background:#fff;border-radius:10px;width:100%;padding:7px 9px;font-weight:800}.settings-summary{margin:0;font-size:13px;font-weight:850}.settings-operations{align-items:start}.settings-check-center{justify-content:center}.boss-shell{--boss-span:900px;--boss-arena-h:432px;--boss-figure:250px;width:min(var(--boss-span), calc(100% - 32px));margin:16px auto 40px}.boss-head{flex-wrap:wrap;justify-content:space-between;align-items:end;gap:10px;margin-bottom:12px;display:flex}.boss-head h1{font-family:var(--font-display), sans-serif;margin:0;font-size:clamp(30px,6vw,44px)}.boss-head .eyebrow{margin:0}.boss-arena{border:3px solid var(--ink);box-shadow:5px 5px 0 var(--ink);background:linear-gradient(#9fd8f0 0%,#cdeefa 46%,#3f8fb8 47%,#2c6f97 100%);border-radius:24px;grid-template-rows:auto auto;grid-template-columns:1fr 1fr;gap:8px 16px;min-height:340px;padding:18px;display:grid;position:relative;overflow:hidden}.boss-plate{border:3px solid var(--ink);background:var(--cream);box-shadow:3px 3px 0 var(--ink);border-radius:14px;grid-template-columns:1fr auto;align-self:start;gap:4px 10px;padding:8px 12px;font-weight:900;display:grid}.boss-plate-name{font-size:16px}.boss-plate-count{color:#18323db3;font-size:13px}.boss-plate .boss-bar{grid-column:1/-1}.boss-plate-foe{grid-area:1/1}.boss-foe{grid-area:1/2;justify-content:center;display:flex;position:relative}.boss-player{grid-area:2/1;justify-content:center;align-items:flex-end;min-height:170px;display:flex;position:relative}.boss-plate-player{grid-area:2/2;align-self:end}.boss-bar{grid-template-columns:repeat(10,1fr);gap:3px;display:grid}.boss-bar-segment{border:2px solid var(--ink);background:#fff;border-radius:4px;height:12px;overflow:hidden}.boss-bar-segment>span{height:100%;transition:width .16s ease-out;display:block}.boss-bar[data-side=foe] .boss-bar-segment>span{background:var(--tomato)}.boss-bar[data-side=player] .boss-bar-segment>span{background:var(--leaf)}.boss-barrier-chip{color:#1f5f80;background:#d6f0fb;border-radius:999px;grid-column:1/-1;justify-self:start;padding:2px 8px;font-size:11px;font-weight:900}.boss-foe img{image-rendering:auto;width:min(236px,100%);height:auto;animation:2.4s ease-in-out infinite boss-breathe;position:relative}.boss-foe-shadow{background:#0a283c47;border-radius:50%;width:60%;height:18px;position:absolute;bottom:6px;left:50%;transform:translate(-50%)}.boss-foe[data-pose=lunge] img{animation:.38s ease-out boss-lunge}.boss-foe[data-pose=hit] img{animation:.32s ease-out boss-hit}.boss-foe[data-pose=sink] img{animation:1.4s ease-in forwards boss-sink}.boss-foe[data-pose=win] img{animation:.9s ease-in-out infinite boss-cheer}.boss-player-doll{height:230px;display:block;overflow:hidden}.boss-player-doll .avatar-doll{margin-top:-26px}.boss-arena[data-phase=fighting] .boss-player-doll{animation:.5s ease-out boss-slide-in}.boss-arena[data-phase=fighting] .boss-foe img{animation-name:boss-breathe}.boss-arena[data-phase=fighting] .boss-foe[data-pose=lunge] img{animation:.38s ease-out boss-lunge}.boss-arena[data-phase=fighting] .boss-foe[data-pose=hit] img{animation:.32s ease-out boss-hit}.boss-wave{pointer-events:none;background:linear-gradient(#a0e1fae6,#2878aabf);border-radius:50% 50% 0 0;height:70%;animation:.7s ease-out forwards boss-wave;position:absolute;inset:auto -20% 0}.boss-shield{pointer-events:none;border:5px solid #a0e6fff2;border-radius:50%;width:190px;height:190px;animation:.7s ease-out forwards boss-shield;position:absolute;bottom:10px;left:50%;transform:translate(-50%);box-shadow:0 0 18px #a0e6ffe6,inset 0 0 18px #a0e6ff99}.boss-menu{border:3px solid var(--ink);background:var(--cream);box-shadow:5px 5px 0 var(--ink);border-radius:20px;margin-top:14px;padding:16px}.boss-card{text-align:center;justify-items:center;gap:8px;display:grid}.boss-card h2{font-family:var(--font-display), sans-serif;margin:0;font-size:26px}.boss-card p{margin:0;font-weight:800}.boss-problem{grid-template-columns:1fr auto;align-items:center;gap:10px 14px;display:grid}.boss-question{font-family:var(--font-display), sans-serif;margin:0;font-size:clamp(38px,9vw,64px);line-height:1}.boss-answer{border:3px solid var(--ink);width:3.6em;font-family:var(--font-display), sans-serif;text-align:center;background:#fff;border-radius:14px;padding:6px 10px;font-size:clamp(34px,8vw,56px)}.boss-keypad{grid-column:1/-1;grid-template-columns:repeat(6,1fr);gap:6px;display:grid}.boss-key{border:2px solid var(--ink);cursor:pointer;background:#fff;border-radius:12px;padding:10px 0;font-size:20px;font-weight:900}.boss-key[data-key=go]{background:var(--sun)}@media (max-width:560px){.boss-arena{grid-template-columns:1fr 1fr;min-height:280px;padding:12px}.boss-player-doll{height:170px}.boss-player-doll .avatar-doll{margin-top:-20px;width:180px!important;height:320px!important}.boss-keypad{grid-template-columns:repeat(4,1fr)}}@keyframes boss-breathe{0%,to{transform:translateY(0)scale(1)}50%{transform:translateY(-4px)scale(1.02)}}@keyframes boss-lunge{0%{transform:translate(0)scale(1)}45%{transform:translate(-28px,14px)scale(1.08)}to{transform:translate(0)scale(1)}}@keyframes boss-hit{0%,to{filter:none;transform:translate(0)}25%{filter:brightness(1.8);transform:translate(-8px)}60%{filter:brightness(1.3);transform:translate(7px)}}@keyframes boss-sink{to{opacity:0;transform:translateY(80px)}}@keyframes boss-cheer{0%,to{transform:translateY(0)}50%{transform:translateY(-12px)}}@keyframes boss-slide-in{0%{opacity:0;transform:translate(-60px)}to{opacity:1;transform:none}}@keyframes boss-wave{0%{opacity:0;transform:translate(60%)}30%{opacity:1}to{opacity:0;transform:translate(-10%)}}@keyframes boss-shield{0%{opacity:0;transform:translate(-50%)scale(.7)}30%{opacity:1}to{opacity:0;transform:translate(-50%)scale(1.1)}}@media (prefers-reduced-motion:reduce){.boss-foe img,.boss-player-doll,.boss-wave,.boss-shield{animation:none!important}}.boss-arena{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.boss-plate{min-width:0}.boss-plate-name{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.boss-foe[data-pose=sink] .boss-foe-shadow{opacity:0;transition:opacity 1.2s ease-in}@media (max-width:560px){.boss-arena{gap:6px 8px}.boss-plate{padding:6px 8px}.boss-plate-name{font-size:13px}.boss-plate-count{font-size:11px}.boss-bar{gap:2px}.boss-bar-segment{border-width:1.5px;border-radius:3px;height:9px}}.boss-arena{grid-template-rows:minmax(150px,1fr) auto}.boss-foe{z-index:1;will-change:transform;width:clamp(140px,30%,250px);display:block;position:absolute;top:7%;left:0}.boss-foe img{width:100%;height:auto;display:block}.boss-foe-front{margin:0 auto;width:88%!important}.boss-foe-shadow{bottom:-8px}.boss-plate{z-index:3;position:relative}.boss-player{z-index:2}.boss-fx{z-index:4;pointer-events:none;width:100%;height:100%;position:absolute;inset:0}.boss-bar-holder{grid-column:1/-1;position:relative}.boss-shield{border-radius:999px;width:112%;height:58px;animation:.7s ease-out forwards boss-shield-bar;top:50%;bottom:auto;left:50%;transform:translate(-50%,-50%)}.boss-pop{z-index:5;pointer-events:none;font-family:var(--font-display), sans-serif;white-space:nowrap;-webkit-text-stroke:3px var(--ink);paint-order:stroke fill;text-shadow:3px 3px 0 var(--ink);font-weight:900;line-height:1;position:absolute;top:-6px;left:50%}.boss-pop[data-kind=loss]{color:#ff3b2f;font-size:clamp(54px,11vw,88px);animation:1.15s ease-out forwards boss-pop-splat}.boss-pop[data-kind=blocked]{color:#8fdcff;font-size:clamp(26px,5vw,38px);animation:1.15s ease-out forwards boss-pop-float}.boss-pop[data-kind=boss]{color:#ff3b2f;-webkit-text-stroke:2px var(--ink);font-size:clamp(22px,4vw,30px);animation:1.15s ease-out forwards boss-pop-float;inset:auto 10px -18px auto}@keyframes boss-pop-splat{0%{opacity:0;transform:translate(-50%,-40%)scale(.2)rotate(-12deg)}14%{opacity:1;transform:translate(-50%,-60%)scale(1.35)rotate(6deg)}22%{transform:translate(-58%,-60%)scale(1)rotate(-5deg)}30%{transform:translate(-42%,-60%)scale(1.05)rotate(5deg)}38%{transform:translate(-56%,-60%)scale(1)rotate(-4deg)}46%{transform:translate(-46%,-60%)scale(1)rotate(3deg)}54%{opacity:1;transform:translate(-50%,-60%)scale(1)rotate(0)}to{opacity:0;transform:translate(-50%,-110%)scale(.95)}}@keyframes boss-pop-float{0%{opacity:0;transform:translate(-50%)scale(.6)}20%{opacity:1;transform:translate(-50%,-30%)scale(1.1)}to{opacity:0;transform:translate(-50%,-120%)scale(1)}}.boss-pop[data-kind=boss]{transform-origin:100%}@keyframes boss-shield-bar{0%{opacity:0;transform:translate(-50%,-50%)scale(.8)}30%{opacity:1}to{opacity:0;transform:translate(-50%,-50%)scale(1.08)}}@media (max-width:560px){.boss-foe{width:clamp(120px,42%,180px);top:26%}}@media (prefers-reduced-motion:reduce){.boss-pop{opacity:1;animation-duration:1ms!important}}.boss-player{align-self:end;margin-bottom:-18px}.boss-player-doll{height:250px}@media (max-width:560px){.boss-player{margin-bottom:-12px}.boss-player-doll{height:190px}}.boss-foe{grid-area:auto}.boss-pop[data-kind=boss]{top:-16px;bottom:auto}.boss-arena{background:#2c6f97}.boss-backdrop{z-index:0;pointer-events:none;position:absolute;inset:0;overflow:hidden}.boss-sky{image-rendering:pixelated;background:#3f7ccb url(/assets/river/sky-valley.png) bottom/cover no-repeat;position:absolute;inset:0 0 50%}.boss-water{image-rendering:pixelated;background:#1d3f8a url(/assets/river/tex-water.png) 0 0/144px 144px;position:absolute;inset:50% 0 0}.boss-harbour{aspect-ratio:760/359;width:62%;position:absolute;top:50%;left:50%;transform:translate(-50%,-55.7%)}.boss-harbour img{width:100%;height:100%;image-rendering:pixelated;display:block}.boss-player,.boss-foe,.boss-plate{position:relative}.boss-foe{position:absolute}@media (max-width:560px){.boss-harbour{width:86%}.boss-water{background-size:96px 96px}}.boss-harbour img{-webkit-mask-image:linear-gradient(#000 72%,#0000 100%);mask-image:linear-gradient(#000 72%,#0000 100%)}.boss-foe{will-change:auto;left:70%;transform:translate(-50%)}@media (min-width:561px) and (min-height:520px){.boss-shell{box-sizing:border-box;flex-direction:column;justify-content:center;height:100dvh;margin:0 auto;padding-block:16px;display:flex}.boss-head,.boss-menu{flex:none}.boss-arena{min-height:220px;max-height:var(--boss-arena-h);flex:1 1 0;grid-template-rows:minmax(0,1fr) auto;container-type:size}.boss-player{min-height:0}.boss-player-doll{height:min(var(--boss-figure), 64.2cqh)}.boss-player-doll .avatar-doll{margin-top:calc(min(var(--boss-figure), 64.2cqh) * -.104);height:calc(min(var(--boss-figure), 64.2cqh) * 1.68)!important;width:calc(min(var(--boss-figure), 64.2cqh) * .945)!important}.boss-foe{width:min(clamp(140px, 30%, var(--boss-figure)), 64cqh)}}@media (min-width:561px) and (min-height:520px) and (max-height:800px){.boss-shell{padding-block:8px}.boss-head{margin-bottom:8px}.boss-head h1{font-size:30px}.boss-menu{margin-top:10px;padding:10px 14px}.boss-card{gap:4px}.boss-card h2{font-size:22px}.boss-problem{gap:8px 14px}.boss-question{font-size:44px}.boss-answer{padding:2px 10px;font-size:40px}.boss-key{padding:6px 0;font-size:18px}}@media (min-width:760px) and (min-height:520px) and (max-height:800px){.boss-keypad{grid-template-columns:repeat(12,minmax(0,1fr))}}.account-corner{z-index:30;position:absolute;top:14px;right:16px}.account-corner .secondary-action{margin:0;padding:8px 14px;font-size:13px}.control-card-wide{grid-column:1/-1}.own-players{align-self:stretch;gap:8px;margin:2px 0 0;padding:0;list-style:none;display:grid}.own-player{border:2px solid var(--ink);background:#fff;border-radius:14px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 14px;padding:8px 10px 8px 14px;display:flex}.own-player[data-new]{box-shadow:3px 3px 0 var(--ink);background:#fff3c4}.own-player-name{flex-wrap:wrap;align-items:baseline;gap:4px 10px;display:flex}.own-player-name a{color:var(--aqua-dark);text-underline-offset:3px;font-weight:950}.own-player-tags{color:#18323da6;font-size:12px;font-weight:800}.control-card .own-player-play{margin:0;padding:7px 18px;font-size:14px}.new-chip{border:2px solid var(--ink);background:var(--sun);text-transform:uppercase;border-radius:999px;padding:0 8px;font-size:11px;font-weight:950}.own-player-note{margin:0;font-size:13px;font-weight:900}.own-player-make{border-top:2px dashed #18323d38;align-self:stretch;gap:8px;padding-top:12px;display:grid}.own-player-make-title{margin:0;font-size:13px;font-weight:950}.own-player-make .secondary-action{justify-self:start;margin-top:4px}.admin-card{text-align:left;margin-top:24px}.admin-card>h2{margin-bottom:0}.admin-section{border-top:2px dashed #18323d38;margin-top:20px;padding-top:18px}.admin-section h3{font-family:var(--font-display), sans-serif;margin:0 0 6px;font-size:22px}.admin-section .dashboard-links{margin:8px 0 0}.admin-link-form{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));align-items:end;gap:10px 14px;margin-top:12px;display:grid}.admin-link-form label{gap:6px;font-size:13px;font-weight:900;display:grid}.admin-link-form select{border:2px solid var(--ink);width:100%;min-width:0;font:inherit;background:#fff;border-radius:12px;padding:9px 11px;font-weight:800}.admin-link-form .primary-action{justify-self:start}.admin-link-status{margin:10px 0 0;font-weight:850}.account-switches{text-align:left;gap:12px;max-width:560px;margin:16px auto 0;display:grid}.control-grid{grid-template-columns:repeat(2,minmax(0,1fr))}@media (max-width:640px){.control-grid{grid-template-columns:minmax(0,1fr)}}.avatar-doll-sparkle{aspect-ratio:1;opacity:0;pointer-events:none;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 7 7' shape-rendering='crispEdges'%3E%3Crect x='3' y='0' width='1' height='7' fill='%23FFF6C2'/%3E%3Crect x='0' y='3' width='7' height='1' fill='%23FFF6C2'/%3E%3Crect x='2' y='2' width='3' height='3' fill='%23FFFFFF'/%3E%3Crect x='3' y='1' width='1' height='5' fill='%23FFFFFF'/%3E%3Crect x='1' y='3' width='5' height='1' fill='%23FFFFFF'/%3E%3C/svg%3E") 50%/contain no-repeat;width:9%;animation:2.7s ease-in-out infinite doll-sparkle;position:absolute;transform:translate(-50%,-50%)scale(.4)}@keyframes doll-sparkle{0%,to{opacity:0;transform:translate(-50%,-50%)scale(.3)rotate(0)}6%{opacity:1;transform:translate(-50%,-50%)scale(1)rotate(15deg)}16%{opacity:.85;transform:translate(-50%,-50%)scale(.8)rotate(30deg)}26%{opacity:0;transform:translate(-50%,-50%)scale(.3)rotate(45deg)}}.avatar-doll-flame{opacity:0;animation:.6s step-end infinite doll-flame}@keyframes doll-flame{0%{opacity:1}24.99%{opacity:1}25%{opacity:0}to{opacity:0}}@media (prefers-reduced-motion:reduce){.avatar-doll-sparkle{display:none}.avatar-doll-flame{opacity:0;animation:none}}@media print{.avatar-doll-sparkle{display:none}.avatar-doll-flame{opacity:0;animation:none}}.sticker-group{margin-bottom:26px}.sticker-group-title{font-family:var(--font-display), sans-serif;margin:0 0 10px;font-size:22px}.sticker[data-locked]{opacity:.55}.sticker[data-locked] figcaption{color:#18323dbf}.sticker-how{color:#18323db3;text-align:center;max-width:76%;margin:2px 0 0;font-size:11px;font-weight:800;line-height:1.25}.sticker-art{width:auto;max-width:118px;max-height:104px;image-rendering:pixelated;display:block}.sticker-soon{color:#18323d73;width:104px;height:104px;font-family:var(--font-display), sans-serif;border:3px dashed #18323d4d;border-radius:50%;place-items:center;font-size:34px;display:grid}@media print{.sticker[data-locked],.sticker-group-title,.sticker-how{display:none}}.sticker-choose{margin-bottom:18px}.sticker-counts{grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px;margin:10px 0 0;padding:0;list-style:none;display:grid}.sticker-count{border:2px solid var(--ink);background:var(--cream);border-radius:14px;align-items:center;gap:10px;padding:6px 10px;display:flex}.sticker-count-art{place-items:center;width:46px;height:46px;display:grid;overflow:hidden}.sticker-count-art .sticker-art{max-width:44px;max-height:40px}.sticker-count-art .reward-picture{background:0 0;width:44px;height:44px}.sticker-count-art .sticker-award{width:44px;height:42px}.sticker-count-art .sticker-monster{width:38px;height:38px}.sticker-count-art .sticker-seal{width:20px;height:20px}.sticker-count-art .sticker-soon{border-width:2px;width:40px;height:40px;font-size:16px}.sticker-count-name{flex:auto;min-width:0;font-size:13px;font-weight:900}.sticker-stepper{align-items:center;gap:4px;display:flex}.sticker-step{border:2px solid var(--ink);cursor:pointer;background:#fff;border-radius:9px;width:30px;height:30px;font-size:17px;font-weight:950;line-height:1}.sticker-step:disabled{opacity:.4;cursor:default}.sticker-number{border:2px solid var(--ink);width:48px;font:inherit;text-align:center;border-radius:9px;padding:4px;font-weight:900}.sticker-choose-actions{flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px;display:flex}.sticker-choose-actions .secondary-action{margin:0;padding:8px 14px;font-size:13px}.sticker-total{font-weight:900}.sticker-preview{justify-items:center;gap:20px;margin:18px 0;display:grid;overflow-x:auto}.sheet-page{box-sizing:border-box;background:#fff;border:2px dashed #18323d40;grid-template-rows:repeat(4,2in);grid-template-columns:repeat(3,2in);place-content:start center;gap:.6in .75in;width:8.5in;height:11in;padding:.5in;display:grid}.sheet-sticker{background:#fff;border:1px dashed #18323d73;border-radius:50%;place-items:center;width:2in;height:2in;display:grid;position:relative;overflow:hidden}.sheet-sticker .sticker-art{max-width:1.7in;max-height:1.35in}.sheet-sticker .reward-picture{background:0 0;width:1.55in;height:1.4in}.sheet-sticker .sticker-award{width:1.45in;height:1.3in}.sheet-sticker .sticker-monster{width:1.15in;height:1.15in}.sheet-sticker .sticker-seal{width:.6in;height:.6in}.sheet-label{text-align:center;max-width:1.35in;font-size:8.5pt;font-weight:900;line-height:1.1;position:absolute;bottom:.14in}.sticker-collection{border-top:2px dashed #18323d38;margin-top:26px;padding-top:18px}.sticker,.sticker-count-art{position:relative}.sticker-ring{pointer-events:none;width:100%;height:100%;position:absolute;inset:0}.sheet-sticker[data-shiny] .sticker-art{max-width:1.4in;max-height:1.1in;margin-bottom:.12in}.sheet-sticker[data-shiny] .sheet-label{max-width:1.35in;bottom:.3in}.sticker[data-shiny] .sticker-art{max-width:96px;max-height:84px}.sticker[data-shiny] figcaption,.sticker[data-shiny] .sticker-how{max-width:66%;position:relative}.sticker-count-art[data-shiny]{overflow:visible}@page{size:letter;margin:0}@media print{.sticker-shell>:not(.sticker-preview){display:none!important}.sticker-preview{gap:0;margin:0;display:block;overflow:visible}.sheet-page{break-after:page;border:0}.sheet-page:last-child{break-after:auto}}.arc-deep{background:linear-gradient(#1d6f9b 0%,#14507a 45%,#0d3557 100%)}.arc-surface{background:linear-gradient(#bef0ff8c,#bef0ff00);height:26%;position:absolute;inset:0 0 auto}.arc-floor{background:linear-gradient(#143c5000,#0c2634d9);height:18%;position:absolute;inset:auto 0 0}.arc-charge{pointer-events:none;border:4px solid #ffee8cf2;border-radius:50%;width:150px;height:150px;margin:-75px 0 0 -75px;animation:.42s ease-in-out infinite alternate arc-charge;position:absolute;top:42%;left:50%;box-shadow:0 0 22px #ffe66ee6,inset 0 0 22px #ffe66e8c}.arc-arena[data-charging=yes] .boss-foe img{filter:brightness(1.35)saturate(1.2)}.arc-flash{pointer-events:none;z-index:3;background:radial-gradient(circle at 70% 35%,#fffac8f2,#96dcff59 45%,#0000 70%);animation:.42s ease-out forwards arc-flash;position:absolute;inset:0}.arc-arena[data-stunned=yes] .boss-player-doll{filter:brightness(1.5)saturate(.6)}.arc-stun{border:3px solid var(--ink);text-align:center;font-family:var(--font-display), sans-serif;background:#fff3c4;border-radius:14px;grid-column:1/-1;margin:0;padding:6px 12px;font-size:clamp(20px,5vw,28px);animation:.5s ease-in-out infinite alternate arc-stun}.boss-problem:has(.arc-stun) .boss-answer{opacity:.55}.boss-key:disabled{opacity:.45;cursor:not-allowed}.boss-pop[data-kind=hit]{color:var(--leaf)}@keyframes arc-charge{0%{opacity:.35;transform:scale(.82)}to{opacity:1;transform:scale(1.05)}}@keyframes arc-flash{0%{opacity:0}15%{opacity:1}to{opacity:0}}@keyframes arc-stun{0%{background:#fff3c4}to{background:#ffe38a}}@media (prefers-reduced-motion:reduce){.arc-charge,.arc-flash,.arc-stun{animation:none!important}.arc-charge{opacity:1}}.arc-deep>*{position:absolute}.arc-wall{object-fit:cover;filter:blur(1px)saturate(.8)contrast(.78)brightness(.62);width:100%;height:100%;transition:filter .2s ease-out;inset:0}.arc-veil{background:#1034486b;inset:0}.arc-base{width:auto;height:46%;image-rendering:pixelated;filter:blur(.5px)saturate(.85)contrast(.85)brightness(.7);transition:filter .2s ease-out;top:25%;left:0}.arc-buoy{width:auto;height:19%;image-rendering:pixelated;filter:saturate(.95)brightness(.82);transition:filter .22s ease-out;bottom:4%;left:45%}.arc-water{width:100%;height:100%;inset:0}.arc-arena[data-charging=yes] .arc-wall{filter:blur(1px)saturate(.45)contrast(.78)brightness(.4)}.arc-arena[data-charging=yes] .arc-base{filter:blur(.5px)saturate(.5)contrast(.85)brightness(.45)}.arc-arena[data-lights=out] .arc-wall{filter:blur(1px)saturate(.5)contrast(.8)brightness(.3)}.arc-arena[data-lights=out] .arc-base{filter:blur(.5px)saturate(.5)contrast(.85)brightness(.35)}.arc-arena[data-lights=out] .arc-buoy{filter:saturate(.5)brightness(.5)}.krack-arena .boss-foe{top:19%;left:79%}.krack-waterline{margin:-40% -15% 0;padding:40% 15% 0;display:block;-webkit-mask-image:linear-gradient(#000 86.2%,#0000 91.7%);mask-image:linear-gradient(#000 86.2%,#0000 91.7%)}.krack-bob{animation:2.8s ease-in-out infinite krack-bob;display:block}.krack-arena .boss-foe-front{transition:translate .26s ease-out,rotate .26s ease-out,scale .26s ease-out,filter .26s ease-out}.krack-arena .boss-foe[data-charge=on] .boss-foe-front{filter:drop-shadow(0 0 6px #ff5a3cd9);translate:6% -7%;rotate:7deg;scale:1.07}.krack-arena .boss-foe[data-pose=sink] img{animation:1.6s ease-in forwards krack-sink}.krack-arena .boss-foe[data-pose=sink] .krack-bob{animation:none}.krack-arena .boss-water{--tile:144px;animation:14s linear infinite krack-water}.krack-sky-fx{width:100%;height:100%;position:absolute;inset:0}.krack-storm,.krack-sun{transition:opacity 1.4s ease-out;position:absolute;inset:0}.krack-storm{opacity:calc(var(--storm,0) * .5);mix-blend-mode:multiply;background:linear-gradient(#2b3446 0%,#3b4a63 48%,#152a4a 52%,#0e2036 100%)}.krack-sun{opacity:var(--sun,0);mix-blend-mode:screen;background:radial-gradient(85% 75% at 15% -5%,#ffde82f2,#ffc46073 45%,#0000 78%),linear-gradient(#0000 50%,#ffce6e47 51%,#0000 100%)}@keyframes krack-bob{0%,to{transform:translateY(0)}50%{transform:translateY(5px)}}@keyframes krack-sink{0%{transform:translateY(0)rotate(0)}25%{transform:translateY(-6px)rotate(-4deg)}to{transform:translateY(90%)rotate(10deg)}}@keyframes krack-water{0%{background-position:0 0}to{background-position:calc(var(--tile) * -1) var(--tile)}}@media (max-width:560px){.krack-arena .boss-water{--tile:96px}.krack-arena .boss-foe{top:22%;left:74%}}@media (prefers-reduced-motion:reduce){.krack-bob,.krack-arena .boss-water{animation:none!important}.krack-arena .boss-foe-front{transition:none}}.krack-bob{aspect-ratio:236/208.6;position:relative}.krack-arena .boss-foe-front{position:absolute;top:0;left:6%}.krack-arena .boss-foe-front[data-showing=no]{visibility:hidden}.krack-arena .boss-harbour{left:36%}@media (max-width:560px){.krack-arena .boss-harbour{left:40%}}.krack-arena .boss-player-doll{transform-origin:50% 100%}.lesson-steps{gap:8px;margin:0;padding:0 28px;list-style:none;display:flex}.lesson-heading .lesson-steps{margin-top:10px;padding:0}.lesson-steps li{border:2px solid var(--ink);background:var(--cream);border-radius:50%;width:12px;height:12px}.lesson-steps li[data-state=done]{background:var(--aqua)}.lesson-steps li[data-state=now]{background:var(--sun);transform:scale(1.25)}.lesson-grid{grid-template-columns:minmax(0,1fr);position:relative}.lesson-stage{text-align:center;grid-template-columns:minmax(0,1fr);place-items:center;min-height:380px;padding:18px 24px 8px 372px;display:grid}.lesson-say{border:3px solid var(--ink);background:var(--cream);box-shadow:5px 5px 0 var(--ink);border-radius:22px;min-height:86px;margin:0 24px 26px 372px;padding:16px 22px;position:relative}.lesson-say-tail{position:absolute;inset:0;overflow:visible}.lesson-say-tail path{fill:var(--cream);stroke:var(--ink);stroke-width:3px;stroke-linejoin:round}.lesson-say .eyebrow{margin:0 0 4px}.lesson-say p.lesson-line{color:var(--ink);margin:0;font-size:21px;font-weight:850;line-height:1.35}.lesson-talk,.lesson-finish,.lesson-share,.lesson-numbers{justify-items:center;gap:18px;width:100%;display:grid}.lesson-preview{opacity:.6;filter:saturate(.7);pointer-events:none;-webkit-user-select:none;user-select:none;zoom:.8;width:100%}@media (max-height:700px){.lesson-preview{zoom:.7}}.lesson-preview .lesson-task{gap:12px}.lesson-finish-things{justify-content:center;align-items:flex-end;gap:10px;min-height:48px;display:flex;position:relative}.lesson-finish-things .lesson-prop-heap{transform-origin:bottom;transform:scale(1.5)}.lesson-finish-drop{width:26px;height:26px;animation:.7s ease-in .3s both lesson-finish-drop;position:absolute;bottom:26px;left:calc(50% - 13px)}@keyframes lesson-finish-drop{0%{opacity:0;transform:translateY(-16px)}40%{opacity:1}to{opacity:1;transform:translateY(0)}}.lesson-finish-things>.lesson-thing{zoom:1.4}.lesson-finish-things[data-things=crumbs]{gap:8px}.lesson-finish-things .lesson-piece-small{width:20px;height:26px}.lesson-finish-things[data-things=crumbs] .lesson-piece-small:nth-child(2n){translate:0 -6px;rotate:8deg}.lesson-finish-things[data-things=crumbs] .lesson-piece-small:nth-child(odd){rotate:-6deg}@media (prefers-reduced-motion:reduce){.lesson-finish-drop{animation:none}}.lesson-teacher-stage{pointer-events:none;position:absolute;inset:0}.lesson-teacher-figure,.lesson-teacher-head{width:268px;height:auto;image-rendering:pixelated;transform-origin:50% 100%;position:absolute;bottom:-14px;left:-28px}.lesson-teacher-figure{filter:drop-shadow(5px 5px #18323d40);transition:transform .22s}.lesson-baton{transform-origin:0;filter:drop-shadow(3px 3px #18323d33);height:auto;transition:rotate .26s;position:absolute;translate:0 -50%}.lesson-teacher-figure[data-mirror=true],.lesson-teacher-head[data-mirror=true]{scale:-1 1}.lesson-teacher-figure:not([data-body])[data-pose=point]{transform:translateY(-2px)rotate(-3deg)}.lesson-teacher-figure:not([data-body])[data-pose=cheer]{animation:.62s ease-in-out 2 lesson-teacher-hop}.lesson-teacher-figure:not([data-body])[data-pose=think]{transform:rotate(4deg)}@keyframes lesson-teacher-hop{40%{transform:translateY(-14px)scale(1.04)}}.lesson-pile-row{justify-content:center;display:flex}.lesson-pile{border:3px dashed var(--ink);background:var(--cream);cursor:grab;min-width:160px;min-height:88px;font:inherit;color:var(--ink);border-radius:22px;justify-items:center;gap:6px;padding:12px 16px;display:grid}.lesson-pile[aria-pressed=true]{background:#ffc93c73;border-style:solid}.lesson-pile:disabled{cursor:default;opacity:.55}.lesson-pile-coins{flex-wrap:wrap;justify-content:center;gap:3px;max-width:150px;display:flex}.lesson-pile[data-still]{cursor:default;border-style:solid;border-color:#18323d59;gap:4px;min-height:0;padding:8px 14px}.lesson-pile[data-still] .lesson-pile-coins:empty{display:none}[data-look=dots] .lesson-pile[data-still] .lesson-pile-coins{max-width:250px}.lesson-pile-row[data-still]{flex-wrap:wrap;align-items:center;gap:12px 18px}.lesson-pile[data-still] .lesson-pile-coins{max-width:250px}.lesson-pile[data-still] .lesson-coin{width:22px;height:22px}.lesson-task[data-look=dots] .lesson-pile[data-still] .lesson-coin{width:16px;height:16px}.lesson-array-pile .lesson-pile-coins{gap:2px;max-width:260px}.lesson-array-pile .lesson-coin{width:22px;height:22px}[data-carry]{touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.lesson-pile-count{font-weight:900}.lesson-coin{filter:drop-shadow(1px 1px #18323d40);background:url(/assets/lessons/counter-gold-coin.png) 50%/contain no-repeat;border:0;border-radius:0;place-items:center;width:30px;height:30px;font-size:13px;font-style:normal;font-weight:1000;line-height:1;display:inline-grid}span.lesson-coin[role=button]{cursor:pointer;width:34px;height:34px}.lesson-coin[data-counted]{background-image:none;background-color:var(--leaf);color:var(--cream);border-radius:50%}.lesson-ghost{z-index:30;pointer-events:none;filter:drop-shadow(3px 3px #18323d73);position:fixed;transform:translate(-50%,-50%)scale(1.2)}.lesson-bowls{grid-template-columns:repeat(min(var(--bowls), 6), minmax(0, 1fr));gap:14px;width:100%;max-width:760px;display:grid}.lesson-bowl-slot{justify-items:center;gap:4px;display:grid}.lesson-friend{--friend-h:52px;width:100%;max-width:72px;height:var(--friend-h);justify-content:center;align-items:flex-end;display:flex}.lesson-friend img{width:auto;max-width:100%;height:calc(var(--friend-h) * var(--stand,1));object-fit:contain;object-position:center bottom;filter:drop-shadow(1px 2px #18323d38);transform-origin:bottom;pointer-events:none;-webkit-user-select:none;user-select:none;animation:lesson-friend-breathe 2.6s ease-in-out var(--sway,0s) infinite alternate}@keyframes lesson-friend-breathe{0%{transform:translateY(0)}to{transform:translateY(-2px)}}@media (prefers-reduced-motion:reduce){.lesson-friend img{animation:none}}.lesson-bowl,.lesson-bag{aspect-ratio:4/3;font:inherit;color:var(--ink);--counter-size:14cqw;--counter-lap:-2cqw -1cqw;border:0;place-items:end center;display:grid;position:relative;container-type:inline-size}.lesson-bowl:before,.lesson-bag:before{content:"";pointer-events:none;background:bottom/100% 100% no-repeat;position:absolute;inset:0}.lesson-bowl,.lesson-bag,.lesson-bowl:before,.lesson-bag:before{image-rendering:pixelated}button.lesson-bowl,button.lesson-bag{cursor:pointer}.lesson-bowl{background:url(/assets/lessons/container-bowl-back.png) bottom/100% 100% no-repeat;border-radius:12px 12px 48px 48px;justify-self:center;width:100%;max-width:210px}.lesson-bowl:before{background-image:url(/assets/lessons/container-bowl-front.png)}.lesson-plate{--counter-lap:-3.5cqw -.5cqw;background-image:url(/assets/lessons/container-plate-back.png);max-width:200px}.lesson-plate:before{background-image:url(/assets/lessons/container-plate-front.png)}.lesson-bowl[data-holding]{filter:drop-shadow(0 0 6px #19b7b0bf)}.lesson-bowl-coins{flex-wrap:wrap;justify-content:center;gap:4px;display:flex}.lesson-bowl .lesson-bowl-coins,.lesson-bag .lesson-bowl-coins{align-content:end;gap:0;max-width:62%;margin-bottom:29.5cqw}.lesson-plate .lesson-bowl-coins{max-width:58%;margin-bottom:23.5cqw}.lesson-bag .lesson-bowl-coins{max-width:42%;margin-bottom:50cqw}@container (min-width:190px){.lesson-task[data-look=dots] .lesson-bowl:not(.lesson-plate) .lesson-bowl-coins{max-width:40%;margin-bottom:31cqw}}.lesson-bowl .lesson-coin,.lesson-bag .lesson-coin{width:var(--counter-size);height:var(--counter-size);margin:var(--counter-lap)}.lesson-bowl .lesson-goldbar-small{width:21cqw;height:7cqw}.lesson-bowl .lesson-piece-small{width:7cqw;height:9cqw}.lesson-bowl[data-shake]{animation:.45s lesson-shake}@keyframes lesson-shake{25%{transform:translate(-6px)}50%{transform:translate(6px)}75%{transform:translate(-3px)}}.lesson-round{min-width:180px}.lesson-sentence-row{justify-items:center;gap:14px;display:grid}.lesson-sentence{font-family:var(--font-display), sans-serif;font-variant-numeric:tabular-nums;margin:0;font-size:clamp(34px,6vw,54px);font-weight:700}.lesson-answer{flex-wrap:nowrap;align-items:center;gap:16px;width:auto;max-width:100%}.lesson-answer .lesson-sentence{white-space:nowrap}.lesson-answer .lesson-ask-part{flex:none}.lesson-answer .answer-input{flex:0 0 120px;width:120px}.lesson-answer .submit-button{flex:none}@media (max-width:700px){.lesson-answer .lesson-sentence{font-size:clamp(22px,7vw,40px)}.lesson-answer .answer-input{flex-basis:86px;width:86px;padding:10px 12px;font-size:26px}}[data-hint]{animation:1.2s ease-in-out infinite lesson-glow;position:relative}[data-hint]:after{content:"▼";color:var(--sun);text-shadow:0 2px 0 var(--ink);pointer-events:none;font-size:26px;animation:.9s ease-in-out infinite lesson-bob;position:absolute;top:-34px;left:50%;transform:translate(-50%)}input[data-hint]:after{content:none}@keyframes lesson-glow{50%{box-shadow:0 0 0 7px #ffc93cbf}}@keyframes lesson-bob{50%{transform:translate(-50%,6px)}}@media (max-width:820px){.lesson-stage{min-height:240px;padding:14px 14px 66px}.lesson-say{border-radius:18px;min-height:76px;margin:0 10px 16px 188px;padding:12px 14px}.lesson-say p.lesson-line{font-size:18px}.lesson-teacher-figure,.lesson-teacher-head{width:132px;bottom:-10px;left:-16px}.lesson-bowls{grid-template-columns:repeat(min(var(--bowls), 3), minmax(0, 1fr))}.lesson-bowl{max-width:138px}.lesson-bowl.lesson-together{width:min(100%,168px);max-width:168px}.lesson-bags .lesson-bag{flex-basis:108px;width:108px}}@media (prefers-reduced-motion:reduce){[data-hint],[data-hint]:after,.lesson-bowl[data-shake],.lesson-together .lesson-coin{animation:none}[data-hint]{box-shadow:0 0 0 7px #ffc93cbf}}[data-theme=addition] .lesson-coin{background-image:url(/assets/lessons/counter-shell.png)}[data-theme=subtraction] .lesson-coin{background-image:url(/assets/lessons/counter-fish.png)}[data-theme=multiplication] .lesson-coin{background-image:url(/assets/lessons/counter-mud-pie.png)}.lesson-task[data-look=dots] .lesson-coin{background-image:none;background-color:var(--dot,var(--ink));border:2px solid var(--ink);filter:none;border-radius:50%;width:16px;height:16px}[data-theme=division]{--dot:#ffc93c}[data-theme=addition]{--dot:#ff9d84}[data-theme=multiplication]{--dot:#9a6334}[data-theme=subtraction]{--dot:#5aa7e0}.lesson-task[data-look=dots] .lesson-coin[data-counted]{background-color:var(--leaf)}.lesson-task{grid-template-columns:minmax(0,1fr);justify-items:center;gap:18px;width:100%;display:grid}.lesson-problem{margin:0;font-size:clamp(26px,4.4vw,40px)}.lesson-fit:has(.lesson-answer,.lesson-ask)>.lesson-problem{display:none}.lesson-answer[data-waiting] .answer-input,.lesson-answer[data-waiting] .submit-button,.lesson-ask[data-waiting] .lesson-choices{opacity:.45}.lesson-coin[data-new]{box-shadow:0 0 0 3px #ffc93ccc}.lesson-ask,.lesson-count-row{justify-items:center;gap:14px;display:grid}.lesson-ask-part{align-items:center;gap:10px;display:inline-flex}.lesson-choices{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.lesson-count-group{border:3px dashed var(--ink);border-radius:18px;padding:12px}.lesson-bags{flex-wrap:wrap;justify-content:center;gap:14px;display:flex}.lesson-bag{background:url(/assets/lessons/container-bag-back.png) bottom/100% 100% no-repeat;border-radius:18px 18px 30px 30px;flex:0 168px;width:168px}.lesson-bag:before{background-image:url(/assets/lessons/container-bag-front.png)}.lesson-bag[data-full]{filter:drop-shadow(0 0 5px #ffc93cf2)}.lesson-bag-size{font-size:13px;font-weight:900}.lesson-bag .lesson-bag-size{text-align:center;white-space:nowrap;place-items:center;line-height:1;display:grid;position:absolute;inset:65.6% 29% 20.8%}.lesson-bowl-label{font-family:var(--font-display), sans-serif;font-size:28px;font-weight:700}.lesson-bowl-group{justify-items:center;gap:8px;width:100%;display:grid}.lesson-together{width:min(100%,260px);max-width:260px}@keyframes lesson-drop-in{0%{opacity:0;transform:translateY(-40%)scale(.7)}}.lesson-together .lesson-coin{animation:.22s ease-out lesson-drop-in}.lesson-water{border:3px solid var(--ink);background:#19b7b029;border-radius:24px;flex-wrap:wrap;justify-content:center;gap:10px;width:min(100%,560px);min-height:110px;padding:18px;display:flex}.lesson-item{cursor:pointer;background:0 0;border:0;place-items:center;min-width:44px;min-height:44px;padding:0;display:grid;position:relative}.lesson-item[aria-pressed=true] .lesson-coin{transform:scale(1.2);box-shadow:0 0 0 4px #ffc93ccc}.lesson-item[data-gone] .lesson-coin{opacity:.25}.lesson-item[data-gone]:after{content:"✕";font-weight:1000;position:absolute}.lesson-item:disabled{cursor:default}.lesson-away{border:3px dashed var(--ink);background:var(--cream);min-width:160px;min-height:64px;font:inherit;color:var(--ink);cursor:pointer;border-radius:18px;place-items:center;gap:4px;padding:8px 18px;font-weight:900;display:grid}.lesson-away-coins{flex-wrap:wrap;justify-content:center;gap:2px;max-width:220px;display:flex}.lesson-away-coins:empty{display:none}.lesson-row{justify-content:center;gap:8px;display:flex}.lesson-slot{border-radius:12px;place-items:center;width:48px;height:48px;display:grid}.lesson-slot[data-paired]{background:#64a83b38}.lesson-slot[data-spare]{background:#ffc93c99}.lesson-line-track{border-bottom:4px solid var(--ink);gap:2px;width:100%;max-width:860px;padding:24px 4px 8px;display:flex;overflow-x:auto}.lesson-tick{min-height:58px;font:inherit;color:var(--ink);cursor:pointer;background:0 0;border:0;border-radius:8px;flex:1 0 26px;place-items:end center;padding:0 0 4px;display:grid;position:relative}.lesson-tick:before{content:"";background:var(--ink);width:3px;height:12px;position:absolute;bottom:-4px;left:50%;transform:translate(-50%)}.lesson-tick-number{font-variant-numeric:tabular-nums;font-weight:900}.lesson-hop-count{color:var(--tomato-dark);font-size:12px;font-weight:1000;position:absolute;top:0}.lesson-tick[data-landed]{background:#ffc93c73}.lesson-tick[data-start],.lesson-tick[data-choice]{background:#19b7b040}.lesson-tick[data-was-choice]{background:#19b7b01a}.lesson-tick[data-was-choice] .lesson-tick-number{opacity:.55}.lesson-tick[data-below]{background:#f54d3d17}.lesson-tick[data-zero]{background:#18323d17}.lesson-tick[data-zero]:before{width:5px;height:20px;bottom:-6px}.lesson-tick[data-zero] .lesson-tick-number{font-size:1.1em}.lesson-tick[data-below] .lesson-tick-number{color:var(--tomato-dark)}.lesson-tick[data-here] .lesson-tick-number{background:var(--tomato);width:30px;height:30px;color:var(--cream);border-radius:50%;place-items:center;display:grid}.lesson-line-track[data-props]{padding-top:76px}.lesson-thing{pointer-events:none;place-items:end center;gap:1px;animation:.26s ease-out lesson-drop-in;display:grid}.lesson-tick>.lesson-thing{z-index:1;position:absolute;bottom:calc(100% + 4px);left:50%;translate:-50%}.lesson-thing .lesson-coin{width:26px;height:26px}.lesson-thing .lesson-coin[data-owed]{width:30px;height:30px}.lesson-prop-heap{width:42px;height:32px;position:relative}.lesson-prop-heap .lesson-coin{width:21px;height:21px;position:absolute}.lesson-prop-heap .lesson-coin:first-child{bottom:0;left:0}.lesson-prop-heap .lesson-coin:nth-child(2){bottom:0;left:21px}.lesson-prop-heap .lesson-coin:nth-child(3){bottom:9px;left:4px}.lesson-prop-heap .lesson-coin:nth-child(4){bottom:11px;left:17px}.lesson-prop-heap .lesson-coin:nth-child(5){bottom:1px;left:10px}.lesson-prop-count{border:2px solid var(--ink);background:var(--cream);text-align:center;border-radius:999px;min-width:24px;padding:0 5px;font-size:12px;font-weight:1000;line-height:16px}.lesson-prop-stack{--item:24px;--rise:min(6px, calc(30px / max(var(--n) - 1, 1)));width:24px;height:calc(var(--item) + (var(--n) - 1) * var(--rise));display:block;position:relative}.lesson-prop-stack .lesson-coin{left:0;bottom:calc(var(--i) * var(--rise));width:24px;height:var(--item);position:absolute}[data-theme=division] .lesson-prop-stack{--item:13px;--rise:min(6px, calc(32px / max(var(--n) - 1, 1)));width:30px}[data-theme=division] .lesson-prop-stack .lesson-coin{background-image:url(/assets/lessons/counter-gold-coin-edge.png);width:30px}.lesson-prop-dish{aspect-ratio:4/3;background:bottom/100% 100% no-repeat;place-items:end center;width:54px;display:grid;position:relative}.lesson-prop-dish:after{content:"";pointer-events:none;background:bottom/100% 100% no-repeat;position:absolute;inset:0}.lesson-prop-bowl{background-image:url(/assets/lessons/container-bowl-back.png)}.lesson-prop-bowl:after{background-image:url(/assets/lessons/container-bowl-front.png)}.lesson-prop-bowl .lesson-prop-stack{margin-bottom:15px}.lesson-prop-plate{background-image:url(/assets/lessons/container-plate-back.png);width:56px}.lesson-prop-plate:after{background-image:url(/assets/lessons/container-plate-front.png)}.lesson-prop-plate .lesson-prop-stack{--rise:min(9px, calc(30px / max(var(--n) - 1, 1)));margin-bottom:11px}.lesson-thing[data-gone]{animation:.65s ease-in forwards lesson-swim-off}@keyframes lesson-swim-off{to{opacity:0;transform:translate(-10%,-22px)rotate(-12deg)}}.lesson-coin[data-owed]{filter:none;background-image:url(/assets/lessons/counter-fish-owed.png)!important}@media (prefers-reduced-motion:reduce){.lesson-thing{animation:none}.lesson-thing[data-gone]{visibility:hidden;animation:none}}.lesson-frames{flex-wrap:wrap;justify-content:center;align-items:center;gap:22px;display:flex}.lesson-frame{border:3px solid var(--ink);background:var(--cream);cursor:pointer;border-radius:12px;grid-template-columns:repeat(5,46px);gap:4px;padding:8px;display:grid}.lesson-frame[data-full]{cursor:default;background:#64a83b40}.lesson-cell{border:2px solid #18323d59;border-radius:6px;place-items:center;height:46px;display:grid}.lesson-grid-pies{grid-template-columns:repeat(var(--cols), 28px);gap:4px;display:grid}.lesson-pie-cell{place-items:center;width:28px;height:28px;display:grid}.lesson-pie-cell .lesson-coin{width:24px;height:24px}.lesson-pie-cell[data-second] .lesson-coin{box-shadow:0 0 0 3px #ffc93ce6}.lesson-grid-pies[data-cut-axis=rows] .lesson-pie-cell[data-second]{transform:translateY(14px)}.lesson-grid-pies[data-cut-axis=cols] .lesson-pie-cell[data-second]{transform:translate(14px)}.lesson-build{grid-template-columns:repeat(var(--cols), 34px);touch-action:none;gap:3px;display:grid}.lesson-build-cell{background:var(--cream);cursor:pointer;border:2px solid #18323d40;border-radius:6px;place-items:center;width:34px;height:34px;padding:0;display:grid}.lesson-build-cell[data-in]{border-color:var(--ink);background:#64a83b33}.lesson-build-cell .lesson-coin{width:22px;height:22px}.lesson-turn{transition:transform .6s}.lesson-cuts{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.lesson-cut{border:2px solid var(--ink);background:var(--cream);min-height:44px;font:inherit;color:var(--ink);cursor:pointer;border-radius:12px;padding:6px 12px;font-weight:850}.lesson-beam{transform:rotate(var(--tilt));justify-content:center;align-items:flex-end;gap:30px;transition:transform .4s;display:flex}.lesson-beam[data-level]{transform:none}.lesson-pan{border:3px solid var(--ink);background:var(--cream);border-radius:12px 12px 40px 40px;justify-items:center;gap:6px;min-width:150px;padding:12px;display:grid}.lesson-stack{width:42px;height:calc(var(--height) * 7px);border:2px solid var(--ink);background:var(--sun);border-radius:6px}.lesson-pan-label{font-family:var(--font-display), sans-serif;font-size:26px;font-weight:700}.lesson-pan-value{font-size:20px;font-weight:1000}.lesson-fulcrum{font-size:40px;line-height:1}.lesson-duel-row{flex-wrap:wrap;justify-content:center;gap:22px;display:flex}.lesson-duel-side{border:3px solid var(--ink);background:var(--cream);border-radius:20px;justify-items:center;min-width:160px;padding:16px;display:grid}.lesson-duel-side[data-winner]{background:#ffc93c80;transform:translateY(-10px);box-shadow:0 10px #18323d26}.lesson-duel-side{transition:transform .35s ease-out}.lesson-duel-monster{object-fit:contain;width:64px;height:56px;margin-bottom:2px}.lesson-duel-side[data-winner] .lesson-duel-monster{animation:.62s ease-in-out lesson-teacher-hop}@media (prefers-reduced-motion:reduce){.lesson-duel-side{transition:none}.lesson-duel-side[data-winner] .lesson-duel-monster{animation:none}}.lesson-bar-pile{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.lesson-goldbar{grid-template-columns:repeat(var(--pieces,1), 1fr);width:120px;height:40px;image-rendering:pixelated;cursor:pointer;background:url(/assets/lessons/counter-gold-bar.png) 50%/100% 100% no-repeat;border:0;border-radius:0;padding:0;display:grid;overflow:hidden}.lesson-goldbar:disabled{cursor:default}.lesson-goldbar[data-cut]{background:0 0}.lesson-goldbar .lesson-piece{background:url(/assets/lessons/counter-gold-bar.png) no-repeat;background-size:calc(var(--pieces) * 100%) 100%;background-position:calc(var(--i,0) / max(var(--pieces) - 1, 1) * 100%) 0;image-rendering:pixelated}.lesson-goldbar .lesson-piece:not(:last-child){border-right:2px solid var(--ink)}.lesson-goldbar .lesson-piece[data-gone]{opacity:.18}.lesson-goldbar-small{image-rendering:auto;width:45px;height:15px;display:inline-block}.lesson-piece-small{background:url(/assets/lessons/counter-gold-piece.png) 50%/100% 100% no-repeat;width:14px;height:18px;display:inline-block}.lesson-fraction-bar{grid-template-columns:repeat(var(--pieces), 1fr);border:3px solid var(--ink);border-radius:8px;width:min(100%,520px);height:54px;display:grid;overflow:hidden}.lesson-fraction-bar .lesson-piece{border:0;border-right:2px solid var(--ink);background:var(--cream);font:inherit}.lesson-fraction-bar .lesson-piece:last-child{border-right:0}.lesson-fraction-bar button.lesson-piece{cursor:pointer}.lesson-fraction-bar .lesson-piece[data-shaded]{background:var(--sun)}.lesson-empty-table{font-size:18px}.mode-lesson-link{z-index:2;color:var(--aqua-dark);font-size:13px;font-weight:900;position:relative}.mode-group-more{margin:6px 0 0 44px}.mastery-row[data-status=locked] .fact-chip{background:#ece6d4;font-size:18px}.mastery-row[data-status=locked] strong{color:#18323db8}.mode-unlock{background:#fffdf5e6;border:2px dashed #18323d59;border-radius:10px;margin-top:4px;padding:4px 10px;font-size:13px;font-weight:900;line-height:1.35;display:block}.mode-unlock-hint{color:#18323dad;font-weight:750;display:block}.mode-new{border:2px solid var(--ink);background:var(--tomato);color:#fff;letter-spacing:.04em;text-transform:uppercase;vertical-align:2px;border-radius:999px;margin-left:8px;padding:1px 8px;font-size:11px;font-weight:1000;display:inline-block}.mastery-row[data-new]:not(:hover):not(:focus-within){background:#f54d3d14;border-radius:14px}.boss-easy-note{opacity:.85;max-width:36em;font-size:.92em}.lesson-pair-rows{justify-items:start;gap:10px;display:grid}.lesson-pair-rows .lesson-row{justify-content:flex-start}.lesson-offer-backdrop{z-index:40;background:#18323d73;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.lesson-offer{border:3px solid var(--ink);background:var(--cream);max-width:520px;box-shadow:7px 7px 0 var(--ink);text-align:center;border-radius:28px;justify-items:center;gap:12px;padding:28px;display:grid}.lesson-slice{gap:0;display:grid}.lesson-slice .lesson-pie-cell{transform:none}.lesson-cut-line{background:repeating-linear-gradient(90deg, var(--ink) 0 6px, transparent 6px 11px) center / 100% 2px no-repeat;min-width:0;min-height:0;color:var(--tomato-dark);cursor:pointer;border:0;place-items:center;margin:0;padding:0;font-size:14px;line-height:1;display:grid}.lesson-slice[data-axis=cols] .lesson-cut-line{background:repeating-linear-gradient(180deg, var(--ink) 0 6px, transparent 6px 11px) center / 2px 100% no-repeat}.lesson-cut-line:hover,.lesson-cut-line:focus-visible{background-color:#ffc93c99}.lesson-cut-line span{background:var(--cream);border-radius:50%;padding:0 2px}.lesson-build-label{color:#18323d8c;place-items:center;width:34px;height:34px;font-size:12px;font-weight:900;display:grid}.lesson-slice{--cell:28px;--cut:18px;--cut-open:26px;--cut-closed:4px}.lesson-slice .lesson-pie-cell{width:var(--cell);height:var(--cell)}.lesson-slice .lesson-pie-cell .lesson-coin{width:calc(var(--cell) - 4px);height:calc(var(--cell) - 4px)}.lesson-pair-rows .lesson-slot{width:min(48px, calc((100vw - 96px) / var(--top)));height:min(48px, calc((100vw - 96px) / var(--top)))}.lesson-pair-rows .lesson-row{gap:min(8px,1vw)}.lesson-task,.lesson-task>*{max-width:100%}@media (max-width:560px){.lesson-slice{--cell:19px;--cut:9px;--cut-open:16px;--cut-closed:2px}.lesson-cut-line{font-size:10px}.lesson-pair-rows .lesson-coin{width:80%;height:80%}.lesson-beam{gap:8px}.lesson-pan{min-width:104px;padding:8px}.lesson-pan-label{font-size:19px}.lesson-grid-pies{grid-template-columns:repeat(var(--cols), 22px);gap:3px}.lesson-pie-cell{width:22px;height:22px}.lesson-pie-cell .lesson-coin{width:18px;height:18px}.lesson-build{grid-template-columns:repeat(var(--cols), 30px)}.lesson-build-cell,.lesson-build-label{width:30px;height:30px}.lesson-frame{grid-template-columns:repeat(5,38px)}.lesson-cell{height:38px}}.lesson-cut-line{z-index:1;position:relative}.lesson-cut-line:before{content:"";position:absolute;inset:-8px -10px}.lesson-slice[data-axis=rows] .lesson-cut-line:before{inset:-10px -4px}.lesson-slice{margin-block:10px}@media (min-width:1280px) and (min-height:860px){.boss-shell{--boss-span:1200px;--boss-arena-h:640px;--boss-figure:360px}.boss-head h1{font-size:54px}.boss-question{font-size:76px}.boss-answer{border-width:4px;border-radius:18px;font-size:68px}.boss-key{border-radius:16px;padding:14px 0;font-size:26px}.boss-keypad{gap:10px}.boss-menu{padding:20px 24px}.boss-card h2{font-size:34px}.boss-card p{font-size:20px}.boss-plate{padding:10px 16px}.boss-plate-name{font-size:22px}.boss-plate-count{font-size:17px}.boss-bar-segment{height:16px}.boss-foe img{image-rendering:pixelated}}@media (min-width:1900px) and (min-height:1200px){.boss-shell{--boss-span:1640px;--boss-arena-h:900px;--boss-figure:500px}.boss-head h1{font-size:68px}.boss-question{font-size:104px}.boss-answer{font-size:92px}.boss-key{padding:20px 0;font-size:34px}.boss-card h2{font-size:44px}.boss-card p{font-size:26px}.boss-plate-name{font-size:28px}.boss-plate-count{font-size:21px}.boss-bar-segment{height:22px}}@media (min-width:2400px) and (min-height:1500px){.boss-shell{--boss-span:2200px;--boss-arena-h:1240px;--boss-figure:700px}.boss-head h1{font-size:88px}.boss-question{font-size:136px}.boss-answer{border-width:5px;border-radius:24px;font-size:120px}.boss-key{border-width:3px;border-radius:20px;padding:26px 0;font-size:44px}.boss-keypad{gap:14px}.boss-card h2{font-size:56px}.boss-card p{font-size:32px}.boss-plate-name{font-size:36px}.boss-plate-count{font-size:26px}.boss-bar-segment{height:28px}}@media (max-height:800px) and (min-width:821px){.app-shell{padding:10px 0 12px}.topbar{margin-bottom:14px}.brand-mark{width:40px;height:40px}.game-toolbar{padding:12px 30px 8px}.game-card{min-height:0}.problem-stage{min-height:0;padding:20px 24px 14px}.lesson-stage{min-height:0;padding:10px 24px 6px 372px}.lesson-say{min-height:0;margin-bottom:14px;padding:12px 20px}.welcome-actions{margin-top:20px}.lesson-task,.lesson-talk,.lesson-finish,.lesson-share,.lesson-numbers{gap:12px}.lesson-count-row,.lesson-ask{gap:10px}.mastery-row{grid-template-columns:34px 1fr auto;margin-top:6px}.fact-chip{width:34px;height:34px}}@media (max-height:660px) and (min-width:821px){.lesson-teacher-figure,.lesson-teacher-head{width:214px}.lesson-stage{padding-left:300px}.lesson-say{margin-bottom:8px;margin-left:300px}.lesson-bowls{gap:10px}.lesson-bowl{max-width:140px}.lesson-friend{--friend-h:46px}.lesson-together{width:min(100%,176px);max-width:176px}.lesson-bowl-label{font-size:22px}.lesson-bags .lesson-bag{flex-basis:132px;width:132px}.lesson-sentence{font-size:clamp(28px,5vw,42px)}}.app-shell.lesson-shell{flex-direction:column;height:100dvh;padding-bottom:14px;display:flex}.lesson-shell>.topbar{flex:none}.lesson-shell>.lesson-grid,.lesson-shell .lesson-grid>.game-card{flex-direction:column;flex:0 auto;min-height:0;display:flex}.lesson-grid>.game-card>:not(.lesson-stage){flex:none}.lesson-grid>.game-card>.lesson-stage{overscroll-behavior:contain;flex:0 auto;min-height:0;overflow:auto}.lesson-stage [data-problem]{z-index:2;background:var(--cream);border-radius:16px;position:sticky;top:0;bottom:0}.lesson-stage [data-problem] [data-problem]{position:static}.lesson-grid>.game-card>.lesson-stage{align-items:safe center}.lesson-fit{place-items:center;gap:inherit;grid-template-columns:minmax(0,1fr);width:100%;display:grid}.app-shell.lesson-shell{overflow-y:clip}@media (max-height:700px) and (min-width:821px){.app-shell.lesson-shell{padding-top:8px;padding-bottom:10px}.lesson-shell>.topbar{display:none}.lesson-shell .game-toolbar{padding:18px 24px 4px}.lesson-shell .game-toolbar .eyebrow{display:none}.lesson-shell .session-title{font-size:28px}.lesson-shell .lesson-heading{align-items:center;gap:18px;display:flex}.lesson-shell .lesson-heading .lesson-steps{margin:0}.lesson-shell .lesson-say{padding:8px 18px}.lesson-shell .lesson-say p.lesson-line{font-size:19px}.lesson-shell .lesson-quiz>.problem-label{margin:0;font-size:13px}.lesson-shell .lesson-slice{--cell:24px;--cut:14px;--cut-open:22px;--cut-closed:3px}}@media (max-height:460px){.app-shell.lesson-shell{padding-top:6px;padding-bottom:6px}.lesson-shell>.topbar{display:none}.lesson-shell .game-toolbar{flex-wrap:nowrap;align-items:center;padding:14px 16px 2px}.lesson-shell .game-toolbar .eyebrow{display:none}.lesson-shell .session-title{font-size:22px}.lesson-shell .toolbar-actions{flex:none}.lesson-shell .lesson-heading{align-items:center;gap:14px;display:flex}.lesson-shell .lesson-heading .lesson-steps{margin:0}.lesson-shell .lesson-stage{min-height:0;padding:6px 12px 4px 150px}.lesson-shell .lesson-say{min-height:0;margin:0 10px 8px 150px;padding:8px 12px}.lesson-shell .lesson-say p.lesson-line{font-size:16px}.lesson-shell .lesson-teacher-figure,.lesson-shell .lesson-teacher-head{width:130px;bottom:-8px;left:-10px}.lesson-shell .lesson-sentence{font-size:28px}.lesson-shell .lesson-answer .answer-input{flex-basis:86px;width:86px;padding:6px 10px;font-size:26px}.lesson-shell .lesson-task{gap:10px}.lesson-quiz:has(.lesson-gridplot,.lesson-array,.lesson-duel,.lesson-tenframe,.lesson-match,.lesson-bars,.lesson-zero){grid-template-columns:auto auto;place-items:center;gap:16px}.lesson-quiz>.lesson-show-me,.lesson-quiz>.problem-label{grid-column:1/-1}.lesson-shell .lesson-quiz>.problem-label{margin:0;font-size:13px}.lesson-shell .lesson-bowls{grid-template-columns:repeat(min(var(--bowls), 8), minmax(0, 1fr));gap:10px}.lesson-shell .lesson-gridplot{grid-template-columns:none;grid-auto-flow:column;justify-content:center;align-items:center;gap:20px}.lesson-shell .lesson-grid-board{--grid-wide:min(var(--grid-max,360px), 300px)}.lesson-shell .lesson-say .eyebrow{display:none}}@media (max-width:560px){.lesson-shell>.topbar{display:none}.lesson-shell .game-card{min-height:0}.lesson-shell .game-toolbar{flex-wrap:nowrap;align-items:center;gap:10px;padding:20px 14px 4px}.lesson-shell .game-toolbar .eyebrow{display:none}.lesson-shell .session-title{font-size:22px;line-height:1.1}.lesson-shell .toolbar-actions{flex:none}.lesson-shell .lesson-heading .lesson-steps{margin-top:6px}.lesson-answer{flex-wrap:wrap;justify-content:center}.lesson-shell .lesson-say{margin-left:124px}}.lesson-grid-frame{grid-template-rows:auto auto;grid-template-columns:auto auto;justify-content:center;align-items:center;gap:6px;display:grid}.lesson-grid-cap-up{writing-mode:vertical-rl;letter-spacing:.08em;color:#18323da6;grid-area:1/1;justify-self:center;font-size:12px;font-weight:1000;transform:rotate(180deg)}.lesson-grid-cap-across{letter-spacing:.08em;color:#18323da6;grid-area:2/2;justify-self:end;font-size:12px;font-weight:1000}.lesson-grid-board{--grid-wide:min(var(--grid-max,360px), 380px);--grid-cell:calc(var(--grid-wide) / var(--cols));grid-area:1/2;grid-template-columns:repeat(var(--cols), var(--grid-cell));border:3px solid var(--ink);background:var(--cream);border-radius:10px;min-width:max-content;display:grid;overflow:hidden}.lesson-grid-cell{width:var(--grid-cell);height:var(--grid-cell);font:inherit;font-size:max(9px, calc(var(--grid-cell) * .36));color:#18323db3;cursor:pointer;background:0 0;border:1px solid #18323d29;place-items:center;padding:0;font-weight:900;display:grid;position:relative}.lesson-grid-cell:disabled{cursor:default}.lesson-grid-cell[data-across],.lesson-grid-cell[data-up]{background:#19b7b024}.lesson-grid-cell[data-origin]{background:#19b7b04d}.lesson-grid-cell[data-across]{border-top-color:var(--ink);border-bottom-color:var(--ink)}.lesson-grid-cell[data-up]{border-left-color:var(--ink);border-right-color:var(--ink)}.lesson-grid-cell[data-start]{background:var(--sun)}.lesson-grid-lane{background:var(--tomato);pointer-events:none;position:absolute}.lesson-grid-lane[data-way=col]{width:3px;top:-1px;bottom:-1px;left:50%;transform:translate(-50%)}.lesson-grid-lane[data-way=row]{height:3px;top:50%;left:-1px;right:-1px;transform:translateY(-50%)}.lesson-grid-num{pointer-events:none;position:relative}.lesson-grid-finds{flex-wrap:wrap;justify-content:center;gap:8px;max-width:560px;margin:6px auto 0;padding:0;list-style:none;display:flex}.lesson-grid-finds li{border:2px solid var(--ink,#1d2b36);white-space:nowrap;background:#fff;border-radius:999px;padding:5px 12px;font-size:.95rem;font-weight:800}.lesson-grid-finds li[data-found]{color:#1f5f4c;background:#d8f3ea;border-color:#1f8a6d}.lesson-grid-sums{justify-items:start;gap:10px;display:grid}.lesson-grid-sum{border-radius:14px;grid-template-columns:74px auto;align-items:center;gap:12px;padding:6px 10px;display:grid}.lesson-grid-sum[data-state=now]{background:#ffc93c47}.lesson-grid-sum[data-state=waiting]{opacity:.45}.lesson-grid-sum .lesson-sentence{font-size:clamp(24px,4vw,36px)}.lesson-grid-sum .answer-form{gap:12px;width:auto}.lesson-grid-axis{letter-spacing:.06em;text-transform:uppercase;color:#18323da6;font-size:12px;font-weight:1000}.lesson-grid-cell[data-point]{background:#ffc93cbf}.lesson-grid-cell[data-point]:after{content:"";filter:drop-shadow(1px 1px #18323d4d);background:url(/assets/lessons/counter-gold-coin.png) 50%/contain no-repeat;animation:.24s ease-out lesson-drop-in;position:absolute;inset:6%}[data-theme=addition] .lesson-grid-cell[data-point]:after{background-image:url(/assets/lessons/counter-shell.png)}[data-theme=subtraction] .lesson-grid-cell[data-point]:after{background-image:url(/assets/lessons/counter-fish.png)}[data-theme=multiplication] .lesson-grid-cell[data-point]:after{background-image:url(/assets/lessons/counter-mud-pie.png)}.lesson-grid-board{background:#f7e9c6}.lesson-grid-chip-icon{vertical-align:-3px;opacity:.35;filter:grayscale();background:url(/assets/lessons/counter-gold-coin.png) 50%/contain no-repeat;width:18px;height:18px;margin-right:5px;display:inline-block}[data-theme=addition] .lesson-grid-chip-icon{background-image:url(/assets/lessons/counter-shell.png)}[data-theme=subtraction] .lesson-grid-chip-icon{background-image:url(/assets/lessons/counter-fish.png)}[data-theme=multiplication] .lesson-grid-chip-icon{background-image:url(/assets/lessons/counter-mud-pie.png)}.lesson-grid-finds li[data-found] .lesson-grid-chip-icon{opacity:1;filter:none}@media (prefers-reduced-motion:reduce){.lesson-grid-cell[data-point]:after{animation:none}}.lesson-grid-cell:not(:disabled):hover{background:#ffc93c73}@media (max-width:820px){.lesson-grid-board{--grid-wide:min(var(--grid-max,360px), 84vw)}}@media (max-height:800px) and (min-width:821px){.lesson-grid-board{--grid-wide:min(var(--grid-max,360px), 300px)}.lesson-grid-frame{gap:3px}.lesson-grid-cap-across,.lesson-grid-cap-up{font-size:11px}}@media (max-height:660px) and (min-width:821px){.lesson-grid-board{--grid-wide:min(var(--grid-max,360px), 262px)}}@media (max-height:800px) and (min-width:821px){.lesson-gridplot{grid-template-columns:none;grid-auto-flow:column;justify-content:center;align-items:center;gap:30px}:is(.lesson-quiz:has(.lesson-gridplot),.lesson-quiz:has(.lesson-array),.lesson-quiz:has(.lesson-duel),.lesson-quiz:has(.lesson-balance),.lesson-quiz:has(.lesson-tenframe),.lesson-quiz:has(.lesson-match),.lesson-quiz:has(.lesson-bars),.lesson-quiz:has(.lesson-pair),.lesson-quiz:has(.lesson-zero)){grid-template-columns:auto auto;place-items:center;gap:24px}:is(.lesson-quiz:has(.lesson-gridplot)>.problem-label,.lesson-quiz:has(.lesson-array)>.problem-label,.lesson-quiz:has(.lesson-duel)>.problem-label,.lesson-quiz:has(.lesson-balance)>.problem-label,.lesson-quiz:has(.lesson-tenframe)>.problem-label,.lesson-quiz:has(.lesson-match)>.problem-label,.lesson-quiz:has(.lesson-bars)>.problem-label,.lesson-quiz:has(.lesson-pair)>.problem-label,.lesson-quiz:has(.lesson-zero)>.problem-label){grid-column:1/-1}}.mud-shell{--mud-dark:#3a2814;--mud-shine:#a07a45}.mud-swamp{background:#55664a}.mud-swamp>*{position:absolute}.mud-fog{pointer-events:none}.mud-fog-near{background:radial-gradient(16% 40% at 15% 60%,#dee6d238,#0000 72%),radial-gradient(20% 45% at 60%,#dee6d22e,#0000 72%);animation:38s linear infinite alternate-reverse mud-fog;inset:62% -60% 0}.mud-swamp-fx{width:100%;height:100%;inset:0}@keyframes mud-fog{0%{transform:translate(-14%)}to{transform:translate(14%)}}.mud-arena .boss-foe{top:5%;left:71%}.mud-body{aspect-ratio:480/431.2;display:block;position:relative}.mud-arena .boss-foe-front{transition:filter .2s ease-out;position:absolute;top:0;left:6%}.mud-arena .boss-foe-front[data-showing=no]{visibility:hidden}.mud-arena .boss-foe-shadow{background:color-mix(in srgb, var(--mud-dark) 55%, transparent);width:72%;height:20px;bottom:1%}.mud-arena[data-charging=yes] .boss-foe-front{filter:drop-shadow(0 0 6px color-mix(in srgb, var(--mud-shine) 90%, transparent))}.mud-arena .boss-foe[data-pose=strike] img{animation:.42s ease-out mud-strike}.mud-arena .boss-foe[data-pose=sink] img{animation:1.1s ease-out forwards mud-slump}.mud-arena .boss-foe[data-pose=sink] .boss-foe-shadow{opacity:1}.mud-arena .boss-player-doll{transform-origin:50% 100%}@keyframes mud-strike{0%{transform:none}40%{transform:translate(-6%,2%)scale(1.04)}to{transform:none}}@keyframes mud-slump{0%{transform:none}30%{transform:translateY(-2%)rotate(-2deg)}to{transform:translateY(6%)rotate(3deg)scale(.97)}}@media (max-width:560px){.mud-arena .boss-foe{top:16%;left:72%}}.mud-sight{border-radius:14px;min-width:0;position:relative}.mud-sight[data-carry]{cursor:grab}.mud-sight:after{content:"";pointer-events:none;opacity:0;background:radial-gradient(ellipse at 35% 50%, color-mix(in srgb, var(--mud-dark) 38%, transparent), transparent 72%);border-radius:14px;position:absolute;inset:-4px -6px}.mud-sight[data-incoming=yes]:after{animation:mud-incoming var(--mud-charge) ease-in forwards}.mud-hint{z-index:1;pointer-events:none;border:2px solid var(--ink);background:var(--sun);color:var(--ink);white-space:nowrap;border-radius:999px;padding:2px 12px;font-size:15px;font-weight:950;animation:.6s ease-in-out infinite alternate mud-hint;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}@keyframes mud-incoming{0%{opacity:0;transform:scale(1.35)}to{opacity:1;transform:scale(.95)}}@keyframes mud-hint{0%{transform:translate(-50%,-50%)scale(.96)}to{transform:translate(-50%,-50%)scale(1.06)}}@keyframes mud-hold{0%{opacity:1}to{opacity:0}}@media (prefers-reduced-motion:reduce){.mud-fog,.mud-hint{animation:none!important}.mud-sight[data-incoming=yes]:after{opacity:1;animation:none}.mud-arena .boss-foe-front{transition:none}}.divi-shell{--divi-rock:#2a2024;--divi-rock-lit:#4a3338;--divi-lava:#ff6a1f;--divi-lava-hot:#ffc24a;--divi-lava-deep:#9a2414;--divi-gold:#f2b43a;--divi-gold-light:#ffe28a;--divi-gold-dark:#9a5f12}.divi-lair{background:#1c1216}.divi-lair>*{position:absolute}.divi-glow{background:linear-gradient(to top, color-mix(in srgb, var(--divi-lava) 60%, transparent), transparent);opacity:.75;transition:opacity .25s ease-out;animation:3.2s ease-in-out infinite alternate divi-glow;inset:52% 0 0}.divi-lair-fx{width:100%;height:100%;inset:0}@keyframes divi-glow{0%{opacity:.6}to{opacity:.85}}.divi-arena .boss-foe{top:3%;left:70%}.divi-body{aspect-ratio:480/373.1;display:block;position:relative}.divi-arena .boss-foe-front{transition:filter .2s ease-out;position:absolute;top:0;left:6%}.divi-arena .boss-foe-front[data-showing=no]{visibility:hidden}.divi-arena .boss-foe-shadow{background:#0d070999;width:76%;height:18px;bottom:1%}.divi-arena[data-charging=yes] .boss-foe-front{filter:drop-shadow(0 0 8px var(--divi-lava))}.divi-arena[data-charging=yes] .divi-glow{opacity:1;animation:none}.divi-arena .boss-foe[data-pose=strike] img{animation:.52s ease-out divi-strike}.divi-arena .boss-foe[data-pose=sink] img{animation:1.1s ease-out forwards divi-curl}.divi-arena .boss-foe[data-pose=sink] .boss-foe-shadow{opacity:1}.divi-arena .boss-player-doll{transform-origin:50% 100%}@keyframes divi-strike{0%{transform:none}35%{transform:translate(-6%,2%)scale(1.04)}to{transform:none}}@keyframes divi-curl{0%{transform:none}30%{transform:translateY(-2%)rotate(-2deg)}to{transform:translateY(4%)scale(.98)}}@media (max-width:560px){.divi-arena .boss-foe{top:14%;left:72%}}.divi-arena .boss-bar-segment{position:relative}.divi-arena .boss-bar[data-side=player] .boss-bar-segment>span{background:radial-gradient(circle at 50% 50%, var(--divi-gold-light) 0 22%, var(--divi-gold) 26% 58%, var(--divi-gold-dark) 64% 100%) 0 0 / 8px 100% repeat-x, var(--divi-gold)}.divi-melt{animation:.9s ease-in both divi-melt;display:block;position:absolute;top:0;bottom:0}.divi-melt[data-side=player],.divi-melt[data-side=foe]{background:linear-gradient(180deg, var(--divi-lava-hot), var(--divi-lava))}@keyframes divi-melt{0%{opacity:1;transform:none}35%{opacity:1;filter:brightness(1.35);transform:none}to{opacity:0;transform:translateY(110%)scaleY(.5)}}.divi-arena[data-charging=yes] .boss-bar-holder{border-radius:6px;animation:.24s ease-in-out infinite alternate divi-heat}@keyframes divi-heat{0%{box-shadow:0 0 0 2px color-mix(in srgb, var(--divi-lava) 50%, transparent)}to{box-shadow:0 0 10px 4px var(--divi-lava)}}.divi-arena .boss-bar-holder[data-spark=yes]:after{content:"";background:radial-gradient(ellipse at 50% 70%, var(--divi-lava-hot) 0 30%, var(--divi-lava) 60%, transparent 72%);pointer-events:none;border-radius:50%/60% 60% 40% 40%;width:14px;height:20px;animation:.18s ease-in-out infinite alternate divi-flicker;position:absolute;top:-12px;right:-6px}@keyframes divi-flicker{0%{transform:scaleX(.9)rotate(-4deg)}to{transform:scale(1.05,1.12)rotate(4deg)}}.divi-armor{white-space:nowrap;flex-wrap:wrap;align-items:center;gap:2px 6px;display:inline-flex}.divi-armor[data-full=yes]{box-shadow:0 0 0 2px var(--divi-gold), 0 0 8px var(--divi-gold)}.divi-armor[data-full=no]{opacity:.7}.divi-streak{gap:2px;display:inline-flex}.divi-streak>i{border:1px solid;border-radius:50%;width:6px;height:6px}.divi-streak>i[data-lit=yes]{border-color:var(--divi-gold-dark);background:var(--divi-gold)}.divi-sight{border-radius:14px;min-width:0;position:relative}.divi-tag{z-index:1;border:2px solid var(--ink);background:var(--tomato);color:var(--cream);white-space:nowrap;pointer-events:none;border-radius:999px;padding:1px 10px;font-size:13px;font-weight:950;position:absolute;top:-12px;left:0;transform:translateY(-50%)}.divi-sight[data-spark=yes] .boss-question{color:var(--tomato-dark)}.divi-sight:after{content:"";pointer-events:none;opacity:0;background:radial-gradient(ellipse at 35% 50%, color-mix(in srgb, var(--divi-lava) 30%, transparent), transparent 72%);border-radius:14px;position:absolute;inset:-4px -6px}.divi-sight[data-incoming=yes]:after{animation:divi-incoming var(--divi-charge) ease-in forwards}@keyframes divi-incoming{0%{opacity:0;transform:scale(1.35)}to{opacity:1;transform:scale(.95)}}@media (prefers-reduced-motion:reduce){.divi-glow,.divi-melt,.divi-arena .boss-bar-holder[data-spark=yes]:after{animation:none!important}.divi-melt{opacity:0}.divi-arena[data-charging=yes] .boss-bar-holder{box-shadow:0 0 10px 4px var(--divi-lava);animation:none}.divi-sight[data-incoming=yes]:after{opacity:1;animation:none}.divi-arena .boss-foe-front,.divi-glow{transition:none}}.solver-step h1{font-family:var(--font-display), sans-serif;margin:5px 0 8px;font-size:clamp(32px,6vw,52px);line-height:.96}.solver-look{gap:14px;margin-top:30px;display:grid}.solver-look h1{margin-block:0}@media (min-width:700px){.solver-step .handle-options{grid-template-columns:repeat(3,1fr)}}.solver-look .avatar-editor{margin-top:4px}.solver-step-actions{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.solver-look .solver-step-actions{z-index:2;background:#fffdf5f7;border-top:2px dashed #18323d33;margin-inline:-8px;padding:12px 8px 14px;position:sticky;bottom:0}.signup-form .solver-step-actions .primary-action{justify-self:auto}.solver-step-handle{font-family:var(--font-display), sans-serif;font-size:22px}.handoff-shell{padding-top:6vh}.handoff-card{text-align:center;justify-items:center;gap:18px;display:grid}.handoff-card h1{max-width:16ch}.handoff-card .signup-intro{color:#18323dbd;max-width:52ch;margin:0;font-weight:750;line-height:1.5}.handoff-card .solver-step-actions{justify-content:center}.handoff-button{min-width:min(320px,100%);padding-block:20px;font-size:22px}.add-child-done{gap:18px;display:grid}.add-child-done h1{font-family:var(--font-display), sans-serif;margin:4px 0 8px;font-size:clamp(30px,5vw,44px);line-height:1}.add-child-done .signup-intro{color:#18323dbd;margin:0;font-weight:750;line-height:1.5}.login-card{border:3px dashed var(--ink);background:#fff;border-radius:18px;width:min(100%,3.5in);padding:14px 16px}.login-card-title{font-family:var(--font-display), sans-serif;margin:0 0 8px;font-size:20px;font-weight:900}.login-card-body{align-items:center;gap:14px;display:flex}.login-card dl{gap:2px;min-width:0;margin:0;display:grid}.login-card dt{color:#18323d99;text-transform:uppercase;letter-spacing:.06em;font-size:11px;font-weight:900}.login-card dd{overflow-wrap:anywhere;margin:0 0 6px;font-weight:850}.login-card-handle{font-family:var(--font-display), sans-serif;font-size:20px}.login-card-blank{border-bottom:2px solid var(--ink);height:26px}@media print{.print-hide{display:none!important}.add-child-done{box-shadow:none;background:#fff;border:0;padding:0}.login-card{-webkit-print-color-adjust:exact;print-color-adjust:exact;break-inside:avoid}}.control-card .control-card-action{color:#fff;margin-top:auto}.control-more{width:100%;font-size:13px}.control-more summary{cursor:pointer;color:var(--aqua-dark);font-weight:900}.control-more[open]{gap:10px;display:grid}.control-more .secondary-action{margin-top:0}.bar-row-item{display:block}.bar-row-button{width:100%;color:inherit;font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:10px;grid-template-columns:2.2rem 1fr 3.1rem 1rem;padding:3px 4px}.bar-row-button:hover,.bar-row-item[data-open] .bar-row-button{background:#ffc93c2e}.bar-row-button:focus-visible{outline:3px solid var(--ink);outline-offset:2px}.bar-row-chevron{color:#18323db3;font-size:13px}.row-detail{margin:6px 0 10px;overflow-x:auto}.row-detail[hidden]{display:none}.row-detail-table{border-collapse:collapse;text-align:left;width:100%;font-size:14px}.row-detail-table th,.row-detail-table td{border-bottom:1px solid #18323d1f;padding:4px 6px}.row-detail-table thead th{color:#18323db3;font-size:12px}.row-detail-fact{white-space:nowrap;font-variant-numeric:tabular-nums}.row-detail-table td{font-variant-numeric:tabular-nums}.row-detail-table tr[data-ready] .row-detail-status{color:#1e6b43;font-weight:800}.row-detail-table tr[data-counts=no]{color:#18323d99}.fact-dots{white-space:nowrap;gap:2px;display:inline-flex}.fact-dot[data-result=right]{color:#2f8f5b}.fact-dot[data-result=wrong]{color:#b23b3b;font-weight:900}.unlock-card .unlock-count{margin-top:0}.unlock-card .unlock-next{font-weight:700}@media (max-width:480px){.bar-row-button{grid-template-columns:1.8rem 1fr 2.7rem .8rem;gap:7px}.row-detail-table{font-size:13px}.row-detail-table th,.row-detail-table td{padding:4px 3px}}.welcome-copy+.ghost-switch{margin:0 0 .75rem}.trail-ghost-line .ghost-switch{vertical-align:middle;margin-left:.4rem}.long-start{gap:4px;padding:18px 24px 20px;display:grid}.long-choices{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:16px;display:grid}.long-choices-two{grid-template-columns:repeat(2,minmax(0,1fr))}.long-choice{border:3px solid var(--ink);background:var(--cream);color:var(--ink);text-align:left;cursor:pointer;box-shadow:4px 4px 0 var(--ink);border-radius:16px;gap:4px;padding:12px 14px;display:grid}.long-choice strong{font-family:var(--font-display), sans-serif;font-size:18px}.long-choice span{color:#18323db3;font-size:14px;font-weight:800;line-height:1.35}.long-choice[aria-pressed=true]{background:var(--aqua);color:#fff}.long-choice[aria-pressed=true] span{color:#ffffffeb}.long-go{justify-self:start}@media (max-width:700px){.long-choices{grid-template-columns:repeat(2,minmax(0,1fr))}}.long-stage{--long-square:48px;--long-small:28px;justify-content:center;align-items:flex-start;gap:28px;padding:4px 20px 6px;display:flex}.long-work{justify-items:center;display:grid}.long-grid{margin:2px 0 4px;display:grid;position:relative}.long-paper{border:1px solid #19b7b033}.long-given,.long-sign,.long-cell{z-index:1;font-family:var(--font-display), sans-serif;font-variant-numeric:tabular-nums;place-items:center;font-size:32px;font-weight:700;display:grid}.long-rule{z-index:2;background:var(--ink);border-radius:2px;align-self:end;height:4px;transform:translateY(2px)}.long-cell{color:var(--ink);cursor:pointer;background:#fff;border:2px dashed #18323d59;border-radius:10px;margin:4px;padding:0}.long-cell:disabled{cursor:default;opacity:1}.long-cell[data-small]{border-radius:8px;margin:2px 10px;font-size:18px}.long-given[data-crossed]{color:#18323d73;position:relative}.long-given[data-crossed]:after,.long-ten[data-crossed]:after{content:"";background:var(--tomato);border-radius:2px;height:3px;position:absolute;top:50%;left:20%;right:20%;transform:rotate(-55deg)}.long-ten{z-index:3;color:var(--aqua-dark);font-family:var(--font-display), sans-serif;pointer-events:none;place-self:start;margin:3px 0 0 4px;font-size:18px;font-weight:700;line-height:1;position:relative}.long-ten[data-small]{margin:7px 0 0 2px;font-size:13px}.long-ten[data-crossed]{color:#18323d73}.long-stage[data-compact] .long-given,.long-stage[data-compact] .long-sign,.long-stage[data-compact] .long-cell{font-size:calc(var(--long-square) * .7)}.long-stage[data-compact] .long-cell{margin:3px}.long-stage[data-compact] .long-cell[data-small]{font-size:calc(var(--long-small) * .65);margin:1px 7px}.long-bracket{z-index:2;border-right:4px solid var(--ink);pointer-events:none;border-radius:0 50% 50% 0;place-self:stretch start;width:22%;margin:-2px 0 0 -8%}.long-cell[data-cursor]{border:3px solid var(--aqua);box-shadow:0 0 0 3px #19b7b04d}.long-cell[data-verdict=right]{border-style:solid;border-color:#64a83b99}.long-cell[data-verdict=wrong]{border:3px solid var(--tomato);color:var(--tomato-dark);background:#ffe3df}.long-cell[data-idle]{opacity:.35;border-style:dotted}.long-line{text-align:center;max-width:520px;min-height:44px;margin:2px 0 0}.long-actions{flex-wrap:wrap;justify-content:center;align-items:center;gap:10px;margin-top:6px;display:flex}.long-next{padding:11px 22px;font-size:16px;line-height:1.2}.long-actions .compact-action{margin-top:0}.long-keypad{width:220px;margin:30px 0 0}.long-keypad .race-key{padding:10px 0}@media (max-width:760px){.long-stage{flex-direction:column;align-items:center}}.long-panel{text-align:left}.long-panel>.problem-label{max-width:760px}.long-panel-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:14px;display:grid}.long-panel-operation{background:#fff;border:2px solid #18323d24;border-radius:14px;padding:14px 16px}.long-panel-operation h3{font-family:var(--font-display), sans-serif;margin:0 0 4px;font-size:20px}.long-panel-total{margin:0 0 10px}.long-panel-table{border-collapse:collapse;width:100%;font-size:15px}.long-panel-table caption,.long-panel-caption{color:#18323db3;text-align:left;text-transform:uppercase;letter-spacing:.04em;margin:8px 0 4px;font-size:13px;font-weight:900}.long-panel-table th{text-align:left;padding:3px 8px 3px 0;font-weight:800}.long-panel-table td{text-align:right;font-variant-numeric:tabular-nums;padding:3px 0}.long-panel-table tr+tr{border-top:1px dashed #18323d24}.long-panel-steps{margin:0;padding-left:18px;font-size:15px;line-height:1.5}