@font-face{font-family:SpinSystem;src:local('Aptos'),local('Segoe UI');font-display:swap}
.is-playground .play-area{max-width:272px}.coach-card.is-miss{border-color:#8c6b4a;background:linear-gradient(135deg,#342d2d,#252432)}.coach-card.is-miss .coach-avatar{color:#edbe80;background:#483a30;border-color:#8c6b4a66}
:root{color-scheme:dark;--bg:#11131e;--panel:#1b1e2e;--panel-hi:#222639;--ink:#f0effa;--muted:#a4a8bc;--dim:#747d97;--line:#30364a;--purple:#bd9af7;--purple-soft:#322943;--mint:#92d5c6;--gold:#edbe80;--pink:#e8a0c4;--radius:20px;font-family:SpinSystem,'Segoe UI',system-ui,sans-serif;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100dvh;background:var(--bg);color:var(--ink);overflow-x:hidden}button,a,input{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.38}button:focus-visible,a:focus-visible,canvas:focus-visible,input:focus-visible{outline:2px solid var(--mint);outline-offset:5px}button{border:0}a{color:inherit;text-decoration:none}[hidden]{display:none!important}svg{width:19px;height:19px;display:block;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}kbd{font:500 10px 'Cascadia Code',Consolas,monospace;letter-spacing:.2px}h1,h2,p{margin:0}.ambient{position:fixed;border-radius:50%;pointer-events:none;z-index:-1;filter:blur(90px);opacity:.13}.ambient-one{width:600px;height:500px;top:-210px;left:-150px;background:#7851b7}.ambient-two{width:450px;height:650px;bottom:-350px;right:-200px;background:#467b7e}.app-shell{max-width:1450px;padding:0 50px;margin:auto}.app-header{height:103px;display:flex;align-items:center;justify-content:space-between;gap:28px;border-bottom:1px solid #292e41}.brand{display:flex;align-items:center;gap:14px}.brand>span:last-child{font-size:23px;font-weight:750;letter-spacing:2px}.brand-light{font-weight:400;color:var(--purple);margin-left:5px}.brand small{display:block;font-size:8px;letter-spacing:2px;color:var(--dim);font-weight:500;margin-top:5px}.brand-mark{display:grid;grid-template-columns:repeat(3,11px);grid-template-rows:repeat(2,11px);gap:3px;transform:rotate(-9deg);filter:drop-shadow(0 5px 10px #bc9af722)}.brand-mark i{background:linear-gradient(135deg,#ddc3ff,#a77cde);border-radius:3px;box-shadow:inset 0 -2px #6d4a94}.brand-mark i:last-child{grid-column:2}.mode-switch{display:flex;padding:5px;background:#181b2a;border:1px solid #2b3042;border-radius:100px;gap:4px}.mode-switch button{padding:10px 22px;background:transparent;color:var(--muted);font-size:12px;border-radius:100px;transition:background .2s,color .2s}.mode-switch button.selected{background:#303247;color:var(--ink);box-shadow:0 2px 6px #0003}.mode-switch button:hover{color:var(--ink)}.header-actions{display:flex;gap:12px;align-items:center}.spark-count{display:flex;gap:7px;align-items:center;font-size:12px;color:var(--dim);margin-right:12px}.spark-count>span:first-child{font-size:22px;color:var(--gold);margin-right:4px}.spark-count b{color:var(--ink);font-weight:500}.icon-button{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;color:var(--muted);background:transparent;transition:color .2s,background .2s}.icon-button:hover{background:var(--panel-hi);color:var(--ink)}.workspace-heading{display:flex;justify-content:space-between;align-items:center;margin:27px 0 30px}.workspace-heading>div{display:flex;align-items:center;gap:9px;color:var(--dim);font-size:9px;letter-spacing:1.7px}.live-dot,.tiny-dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px #92d5c650}.text-button{display:flex;align-items:center;justify-content:center;gap:9px;padding:5px 0;background:transparent;font-size:12px;color:var(--muted)}.text-button:hover{color:var(--ink)}.text-button svg{width:15px;height:15px}.game-layout{display:grid;grid-template-columns:minmax(195px,1fr) minmax(270px,336px) minmax(230px,1fr);gap:clamp(24px,4vw,65px);align-items:start;max-width:1130px;margin:0 auto}.lesson-sidebar{padding-top:22px}.chapter-label{font-size:9px;letter-spacing:1.8px;font-weight:600;color:var(--dim);line-height:1.6}.lesson-sidebar h1{font-size:clamp(34px,3.6vw,52px);font-weight:650;letter-spacing:-2.2px;line-height:1.12;margin:18px 0 15px}.lesson-sidebar h1 em{font-family:Georgia,'Times New Roman',serif;font-weight:400;color:var(--purple);letter-spacing:-1.8px}.lesson-subtitle{font-size:13px;line-height:1.8;color:var(--muted);max-width:205px}.lesson-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:21px}.goal-chip{padding:7px 10px;border:1px solid #58466e;border-radius:7px;color:#d5b9fa;font-size:10px;font-weight:500;background:#30243c55}.difficulty{font-size:10px;color:var(--dim)}.chapter-navigation{margin-top:40px;display:flex;flex-direction:column;gap:21px}.chapter-nav-item{display:grid;grid-template-columns:26px 1fr;column-gap:10px;color:var(--dim)}.chapter-nav-item>button{grid-column:1/3;display:flex;gap:10px;align-items:center;text-align:left;background:transparent;padding:0;color:inherit}.chapter-number{font-size:9px;font-family:Consolas,monospace;border:1px solid var(--line);width:26px;height:26px;display:grid;place-items:center;border-radius:50%;transition:all .2s}.chapter-nav-item.current .chapter-number{border-color:#8c70b5;background:var(--purple-soft);color:var(--purple)}.chapter-name{font-size:12px}.chapter-nav-item.current .chapter-name{color:var(--ink)}.chapter-pips{grid-column:2;display:flex;gap:8px;margin-top:10px}.chapter-pips button{width:19px;height:6px;padding:0;border-radius:4px;background:#343a50;position:relative}.chapter-pips button::after{content:'';position:absolute;inset:-7px 0}.chapter-pips button.complete{background:#83b9ad}.chapter-pips button.active{background:var(--purple);box-shadow:0 0 10px #bd9af733}.sidebar-bottom{display:flex;gap:10px;align-items:flex-start;margin-top:35px}.sidebar-bottom p{font-size:11px;line-height:1.8;color:var(--dim)}.tiny-orbit{font-size:24px;color:#66627e;transform:rotate(-20deg)}.play-area{min-width:0;width:100%;max-width:336px;justify-self:center}.board-topbar{height:28px;display:flex;align-items:center;justify-content:space-between;padding:0 2px;margin-bottom:10px}.board-mode{display:flex;align-items:center;gap:7px;font-size:9px;letter-spacing:1.5px;color:var(--muted)}.tiny-dot{width:4px;height:4px;background:var(--purple)}.next-queue{display:flex;align-items:center;gap:10px;font-size:8px;letter-spacing:1.4px;color:var(--dim)}#next-pieces{display:flex;align-items:center;gap:11px;height:27px}.preview-piece{display:grid;grid-template-columns:repeat(4,6px);grid-template-rows:repeat(2,6px);gap:1px;width:27px;height:13px;align-self:center}.preview-piece i{border-radius:1.5px;background:var(--piece-color);box-shadow:inset 0 1px #ffffff44}.preview-piece.dimmed{opacity:.35}.board-casing{position:relative;background:linear-gradient(130deg,#37374b,#1f2435 40%,#303647);padding:9px;border:1px solid #45475e;border-radius:19px;box-shadow:0 18px 50px #05071166,0 1px #ffffff08 inset;isolation:isolate}.board-top-edge{height:1px;position:absolute;top:0;left:20%;right:20%;background:linear-gradient(90deg,transparent,#b2a7cb88,transparent)}#board{display:block;width:100%;height:auto;aspect-ratio:10/14;background:#111624;border-radius:11px;touch-action:none}#board:focus{outline:none}#board:focus-visible{outline:2px solid var(--mint);outline-offset:3px}.board-caption{display:flex;justify-content:space-between;gap:10px;margin-top:13px;font-size:10px;color:var(--dim)}#piece-counter{font-family:Consolas,monospace;font-size:8px;letter-spacing:.8px;white-space:nowrap}.play-controls{display:grid;grid-template-columns:repeat(5,1fr) 1.65fr;gap:5px;margin-top:19px}.play-controls button{display:flex;justify-content:center;align-items:center;min-height:39px;background:#222738;border:1px solid #353c51;border-radius:9px;color:#c7c9d9;box-shadow:0 2px 0 #0a0e18;transition:background .1s,transform .1s;touch-action:manipulation}.play-controls button:hover{background:#33344c;color:var(--ink)}.play-controls button:active{transform:translateY(2px);box-shadow:none}.play-controls button svg{width:17px;height:17px}.play-controls .lock-button{background:#b699df;color:#211a30;border-color:#ccb0f2;gap:5px;font-size:11px;font-weight:600}.lock-button kbd{display:none}.play-controls .lock-button:hover{background:#c8a9f0;color:#211a30}.keyboard-description{margin-top:14px;color:var(--dim);font-size:9px;text-align:center;letter-spacing:.1px;line-height:1.8}.keyboard-description span{margin:0 5px;color:#4c526b}.coach-sidebar{padding-top:5px}.step-tracker{display:flex;gap:4px;align-items:center;justify-content:center;min-height:26px;margin-bottom:11px}.step-tracker span{display:flex;align-items:center;gap:6px;color:var(--dim);font-size:9px;white-space:nowrap}.step-tracker i{display:grid;place-items:center;border:1px solid var(--line);width:19px;height:19px;font-style:normal;font-family:Consolas,monospace;font-size:8px;border-radius:50%}.step-tracker .active{color:var(--ink)}.step-tracker .active i{background:var(--purple-soft);border-color:#7a639b;color:var(--purple)}.step-tracker .done i{background:#27443d;color:var(--mint);border-color:#42675e}.step-tracker .step-line{display:block;width:15px;height:1px;background:var(--line);margin:0 3px;flex:none}.coach-card{padding:23px 22px 15px;background:linear-gradient(135deg,#242638,#1d2231);border:1px solid #363c50;border-radius:var(--radius);box-shadow:0 8px 25px #080c1922}.coach-identity{display:flex;align-items:center;gap:9px;margin-bottom:20px}.coach-avatar{display:grid;place-items:center;flex:none;width:32px;height:32px;border:1px solid #72578366;border-radius:11px;background:#3b2e4b;color:#ceaffb}.coach-avatar svg{width:18px;height:18px}.coach-identity>span:nth-child(2){font-size:8px;letter-spacing:1.4px;color:var(--muted)}.coach-online{width:4px;height:4px;background:#88baa5;border-radius:50%;margin-left:auto}.coach-card h2,.success-card h2{font-size:21px;line-height:1.25;letter-spacing:-.5px;font-weight:600;margin-bottom:13px}.coach-card>p{color:var(--muted);font-size:12px;line-height:1.85;min-height:68px}.input-suggestion{display:flex;gap:10px;align-items:center;margin-top:18px;color:var(--dim);font-size:10px;min-height:27px;flex-wrap:wrap}.input-suggestion kbd{background:#181d2b;border:1px solid #43475c;border-bottom-width:2px;color:#c7c6db;padding:5px 8px;border-radius:5px;white-space:nowrap}.input-suggestion .suggestion-text{font-size:10px;color:var(--muted);line-height:1.6}.hint-button{margin-top:22px;width:100%;border:1px solid #50425f;background:#352d43;display:flex;align-items:center;gap:9px;padding:11px 12px;border-radius:9px;color:#d6c2f3;font-size:11px;text-align:left;transition:background .2s}.hint-button:hover{background:#463656}.hint-button svg{width:15px;height:15px}.hint-button kbd{margin-left:auto;opacity:.65}.demo-button{display:flex;align-items:center;justify-content:center;gap:8px;background:transparent;color:var(--muted);font-size:10px;width:100%;padding:15px 0 1px}.demo-button svg{width:12px;height:12px}.demo-button:hover{color:var(--ink)}.hint-content{font-size:11px;line-height:1.8;color:#d6c4ed;background:#201d30;border:1px solid #4a3b5b;border-radius:9px;padding:12px;margin-top:16px}.spin-check{display:flex;align-items:center;gap:7px;font-size:10px;line-height:1.5;margin-top:17px;color:var(--mint)}.spin-check svg{width:14px;height:14px;flex:none}.utility-controls{display:flex;gap:10px;margin-top:14px}.utility-controls button{display:flex;gap:7px;align-items:center;border:1px solid #30384a;color:var(--muted);border-radius:9px;padding:10px 11px;background:#1a2030;font-size:11px;flex:1;transition:background .2s}.utility-controls button svg{width:13px;height:13px}.utility-controls button kbd{margin-left:auto;font-size:9px;opacity:.5}.utility-controls button:hover:enabled{background:#2a3042;color:var(--ink)}.little-lesson{display:flex;gap:12px;margin:31px 13px 0;color:var(--dim);font-size:11px;font-family:Georgia,serif;font-style:italic;line-height:1.8}.little-lesson-line{background:linear-gradient(var(--purple),transparent);width:1px;flex:none}.success-card{padding:24px 22px;background:linear-gradient(150deg,#263931,#1b262c 75%);border:1px solid #476355;border-radius:var(--radius);position:relative;overflow:hidden}.success-symbol{font-size:48px;line-height:1;color:var(--gold);text-shadow:0 0 32px #f3b86944;margin-bottom:18px}.success-card .chapter-label{color:var(--mint);margin-bottom:10px}.success-card h2{font-size:27px}.success-card p{font-size:12px;line-height:1.8;color:#b1c5bb}.success-details{display:flex;flex-direction:column;gap:8px;padding:15px 0;border-top:1px solid #45615366;border-bottom:1px solid #45615366;margin:20px 0;font-size:10px;color:#adc5b6}.success-details b{color:var(--ink);font-size:14px;font-weight:500;margin-right:3px}.success-card .text-button{width:100%;margin-top:12px;font-size:10px}.primary-button{display:flex;align-items:center;justify-content:center;gap:9px;border-radius:10px;padding:13px 14px;width:100%;background:var(--mint);color:#182d29;font-size:12px;font-weight:650}.primary-button:hover{background:#a9e8d9}.primary-button svg{width:15px;height:15px}.board-banner{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:9px;text-align:center;padding:12px;pointer-events:none;opacity:0;transform:translateY(7px);transition:opacity .22s,transform .22s;z-index:3;border-radius:inherit;background:radial-gradient(ellipse,#111626ee,transparent 75%)}.board-banner.visible{opacity:1;transform:translateY(0)}.board-banner>span{font-size:8px;letter-spacing:2px;color:var(--mint)}.board-banner strong{font-size:29px;line-height:1.1;letter-spacing:-1px;font-weight:700;color:#ecdfff;text-shadow:0 4px 20px #090512,0 0 30px #ba93ff66;max-width:100%;text-wrap:balance}.demo-label{position:absolute;top:19px;left:17px;right:17px;display:flex;align-items:center;gap:7px;border:1px solid #74614366;background:#28251ff0;border-radius:7px;padding:9px;color:var(--gold);font-size:8px;letter-spacing:.8px;z-index:4}.demo-label .live-dot{background:var(--gold)}.demo-label button{margin-left:auto;padding:0;background:transparent;color:var(--gold);text-decoration:underline;font-size:9px;letter-spacing:0}.app-footer{margin-top:39px;border-top:1px solid #292e41;padding:20px 0 23px;display:flex;justify-content:space-between;align-items:center;gap:16px;font-size:8px;letter-spacing:1.7px;color:#747d97}.aha{font-family:Georgia,serif;font-size:11px;color:#a9a0b9;letter-spacing:0}.app-footer button{display:flex;align-items:center;gap:8px;color:var(--dim);background:transparent;padding:0;font-size:9px;letter-spacing:.2px}.app-footer svg{width:14px;height:14px}.app-footer button[aria-pressed=true]{color:var(--mint)}.playground-tools{border-top:1px solid var(--line);padding-top:20px;margin-top:22px}.preset-buttons{display:flex;gap:6px;margin:10px 0}.preset-buttons button{flex:1;background:#1c2331;border:1px solid var(--line);border-radius:7px;padding:8px 3px;font-size:10px;color:var(--muted)}.preset-buttons button.active{background:var(--purple-soft);border-color:#70578d;color:var(--purple)}.hold-button{display:flex;align-items:center;width:100%;gap:8px;background:#1c2331;border:1px solid var(--line);border-radius:8px;padding:11px;font-size:11px;color:var(--muted)}.hold-button>span{margin-left:auto}.hold-button .preview-piece{display:grid}.hold-button kbd{opacity:.5}.toast{position:fixed;left:50%;bottom:25px;max-width:calc(100vw - 32px);background:#30384b;border:1px solid #56617b;color:var(--ink);font-size:12px;line-height:1.6;border-radius:12px;padding:11px 18px;box-shadow:0 6px 30px #05071166;z-index:20;opacity:0;transform:translate(-50%,10px);transition:opacity .2s,transform .2s;pointer-events:none;text-align:center}.toast.visible{opacity:1;transform:translate(-50%,0)}dialog{width:min(760px,calc(100vw - 32px));max-height:calc(100dvh - 50px);border:1px solid #4b4560;border-radius:23px;padding:31px;background:#1b1f2e;color:var(--ink);box-shadow:0 25px 100px #0009;overflow:auto}dialog::backdrop{background:#070b16bb;backdrop-filter:blur(7px)}.dialog-top{display:flex;align-items:center;gap:15px;justify-content:space-between}.dialog-top h2{font-size:30px;font-weight:550;letter-spacing:-1px;margin-top:8px}.dialog-intro{font-size:12px;color:var(--muted);line-height:1.8;margin:13px 0 24px}.journey-chapter+.journey-chapter{margin-top:23px}.journey-chapter>h3{font-size:11px;font-weight:500;letter-spacing:1px;color:var(--muted);margin:0 0 11px}.journey-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.journey-card{text-align:left;padding:14px 12px;background:#252b3d;border:1px solid #38425a;border-radius:11px;display:flex;flex-direction:column;gap:9px;min-height:111px;transition:border-color .2s,transform .2s}.journey-card:hover{border-color:#9580bc;transform:translateY(-2px)}.journey-card.current{border-color:var(--purple);background:#362e47}.journey-card.done{border-color:#46645c}.journey-card>span:first-child{font-size:10px;color:var(--dim)}.journey-card.done>span:first-child{color:var(--mint)}.journey-card strong{font-size:12px;font-weight:500;line-height:1.5}.journey-card small{color:var(--dim);font-size:9px;line-height:1.5;margin-top:auto}.journey-summary{padding-top:20px;margin-top:24px;border-top:1px solid var(--line);display:flex;align-items:center;gap:10px;color:var(--muted);font-size:11px}.journey-summary>span:first-child{color:var(--gold);font-size:22px}#help-dialog{max-width:550px}.control-reference{margin-top:23px}.control-reference>div{display:flex;gap:20px;padding:10px 0;border-bottom:1px solid #30374a;font-size:11px;align-items:center}.control-reference kbd{width:100px;flex:none;color:var(--purple);font-size:11px}.control-reference>div>span{color:var(--muted);line-height:1.5}.help-note{display:flex;gap:12px;align-items:flex-start;font-size:11px;line-height:1.8;color:var(--muted);padding:16px;background:#292638;border-radius:12px;margin:22px 0}.help-note svg{flex:none;color:var(--gold);margin-top:3px}.setting-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;font-size:12px;color:var(--muted)}.setting-row input{accent-color:var(--purple);width:17px;height:17px}.storage-note{font-size:10px;line-height:1.8;color:var(--dim);margin-top:15px}.noscript{padding:30px;text-align:center;background:var(--panel)}
@media(min-width:1100px) and (max-height:830px){.app-header{height:82px}.workspace-heading{margin:19px 0 16px}.game-layout{grid-template-columns:minmax(195px,1fr) minmax(240px,290px) minmax(230px,1fr)}.lesson-sidebar{padding-top:15px}.lesson-sidebar h1{font-size:45px}.chapter-navigation{margin-top:28px;gap:18px}.sidebar-bottom{margin-top:26px}.app-footer{margin-top:24px;padding:16px 0}.play-controls{margin-top:15px}.board-caption{margin-top:10px}.keyboard-description{margin-top:10px}.coach-card{padding:20px 20px 14px}.coach-card>p{min-height:65px}}
@media(min-width:1100px) and (max-height:690px){.app-header{height:72px}.game-layout{grid-template-columns:minmax(195px,1fr) minmax(220px,255px) minmax(230px,1fr)}.workspace-heading{margin:15px 0}.app-footer{margin-top:20px}.chapter-navigation{gap:15px}.sidebar-bottom{display:none}.lesson-sidebar h1{font-size:40px}}
@media(max-width:1099px){.app-shell{padding:0 28px}.app-header{height:87px;gap:15px}.brand>span:last-child{font-size:20px}.brand small{font-size:7px;letter-spacing:1.4px}.mode-switch button{padding:9px 14px;font-size:11px}.header-actions{gap:5px}.spark-count{margin-right:5px}.game-layout{grid-template-columns:minmax(165px,1fr) minmax(250px,300px) minmax(210px,1fr);gap:22px}.lesson-sidebar h1{font-size:39px}.coach-card{padding:18px 16px 13px}.coach-card h2{font-size:20px}.utility-controls button{padding:9px;font-size:10px}.utility-controls kbd{display:none}.lesson-meta{gap:9px}.chapter-navigation{margin-top:30px}.step-tracker{gap:3px}.step-tracker span{font-size:8px}.step-tracker .step-line{width:7px;margin:0 2px}}
@media(max-width:850px){.app-shell{padding:0 24px}.brand small{display:none}.header-actions .spark-count{margin-right:8px}.game-layout{grid-template-columns:minmax(260px,320px) minmax(225px,1fr);max-width:670px;gap:25px}.lesson-sidebar{grid-column:1/-1;display:grid;grid-template-columns:1fr auto;gap:4px 20px;padding-top:0}.chapter-label{grid-column:1}.lesson-sidebar h1{font-size:35px;line-height:1.15;margin:5px 0;grid-column:1}.lesson-sidebar h1 br{display:none}.lesson-sidebar h1 em{margin-left:6px}.lesson-subtitle{max-width:100%;grid-column:1;font-size:12px}.lesson-meta{grid-column:2;grid-row:2/4;margin:0;align-self:center;flex-direction:column;align-items:flex-end}.chapter-navigation,.sidebar-bottom{display:none}.workspace-heading{margin:22px 0}.coach-sidebar{padding-top:5px}.app-footer{margin-top:28px}.little-lesson{margin-top:25px}}
@media(max-width:590px){.app-shell{padding:0 17px}.app-header{height:76px;gap:10px;flex-wrap:wrap;position:relative;padding-bottom:0}.brand{gap:9px}.brand>span:last-child{font-size:18px;letter-spacing:1.3px}.brand-mark{grid-template-columns:repeat(3,8px);grid-template-rows:repeat(2,8px);gap:2px}.mode-switch{position:relative;order:3;margin:11px auto 0;padding:4px;z-index:1}.mode-switch button{padding:8px 22px;font-size:11px}.header-actions{margin-left:auto}.spark-count{font-size:10px;gap:4px}.spark-count>span:first-child{font-size:19px}.header-actions .icon-button{width:29px;height:29px}.header-actions svg{width:17px;height:17px}.workspace-heading{margin:61px 0 20px}.workspace-heading>div{font-size:7px;letter-spacing:1.2px}.workspace-heading .text-button{font-size:10px}.game-layout{display:flex;flex-direction:column;gap:23px;align-items:stretch;max-width:380px}.lesson-sidebar{gap:2px 10px}.lesson-sidebar h1{font-size:33px;letter-spacing:-1.4px}.lesson-subtitle{font-size:11px}.goal-chip{font-size:8px;padding:6px 7px}.difficulty{font-size:8px}.chapter-label{font-size:8px;letter-spacing:1.3px}.lesson-meta{gap:6px}.play-area{width:min(100%,300px);align-self:center}.board-casing{padding:8px;border-radius:16px}.coach-sidebar{padding:0;display:flex;flex-direction:column}.step-tracker{order:0;margin-bottom:12px}.coach-card,.success-card{order:1}.utility-controls{order:2;margin-top:12px}.playground-tools{order:3}.little-lesson{display:none}.coach-card{padding:18px}.coach-identity{margin-bottom:13px}.coach-card>p{min-height:0;font-size:12px}.input-suggestion{margin-top:13px}.hint-button{margin-top:16px}.demo-button{padding-top:12px}.utility-controls button{justify-content:center;padding:12px;font-size:11px}.utility-controls button kbd{display:inline-block;margin-left:8px}.app-footer{font-size:7px;letter-spacing:1px;gap:8px;margin-top:28px}.app-footer button{font-size:8px}.app-footer>span:nth-child(2){display:none}.journey-grid{grid-template-columns:repeat(2,1fr)}dialog{padding:22px;border-radius:17px}.dialog-top h2{font-size:24px}.dialog-intro{font-size:11px}.journey-card{min-height:100px}.keyboard-description{font-size:9px}.control-reference>div{gap:10px}.control-reference kbd{width:88px;font-size:10px}.control-reference>div>span{font-size:10px}.lesson-sidebar .lesson-meta{max-width:100px}.success-card{padding:22px}.play-controls button{min-height:43px}}
@media(hover:hover){[data-tooltip]{position:relative}[data-tooltip]:hover::after{content:attr(data-tooltip);position:absolute;bottom:calc(100% + 9px);left:50%;transform:translateX(-50%);white-space:nowrap;background:#31374d;border:1px solid #515b78;padding:6px 9px;border-radius:6px;font-size:10px;color:var(--ink);pointer-events:none;z-index:5;font-weight:400;box-shadow:0 3px 15px #0004}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}body.reduced-motion *,body.reduced-motion *::before,body.reduced-motion *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}