:root{--bg: #f3f4f1;--surface: #ffffff;--ink: #111827;--muted: #5b6472;--line: #dfe3dc;--primary: #0b5d3b;--on-primary: #ffffff;--select: #ffd23f;--select-edge: #e0b100;--on-select: #111827;--danger: #c62828;--focus: #0b5d3b;color-scheme:light dark;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}@media(prefers-color-scheme:dark){:root{--bg: #14181f;--surface: #1d232c;--ink: #e8ecf1;--muted: #9aa6b4;--line: #2c3440;--primary: #7ddc9c;--on-primary: #0f2e1f;--danger: #ef9a9a;--focus: #7ddc9c}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}button,input,select,textarea{font:inherit}button,.button,summary,select{cursor:pointer}button,.button{transition:background-color .12s,border-color .12s,color .12s,filter .12s}button:active:not(:disabled),.button:active{filter:brightness(.92)}:focus-visible{outline:2px solid var(--focus);outline-offset:2px}a{color:var(--primary)}h1{font-size:24px;margin:8px 0 12px}@media(min-width:700px){h1{font-size:32px}}.page{max-width:960px;margin:0 auto;padding:16px}.header{display:flex;align-items:center;justify-content:space-between;gap:12px;max-width:960px;margin:0 auto;padding:12px 16px}.brand{font-weight:700;font-size:18px;color:var(--ink);text-decoration:none}.header-end select{min-height:40px;padding:6px 8px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-size:15px}.drill-list{list-style:none;padding:0;display:grid;gap:8px}.drill-list a{display:block;padding:12px 14px;background:var(--surface);border:1px solid var(--line);border-radius:10px;text-decoration:none;color:var(--ink)}.drill-list small{color:var(--muted);display:block;margin-top:2px}.player{display:grid;gap:8px;background:var(--bg)}.player-stage{position:relative;height:min(70vh,560px);border-radius:10px;overflow:hidden}.player:fullscreen .player-stage{height:calc(100vh - 220px)}.board{position:absolute;inset:0}.board canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none}.captions{display:grid;gap:4px;min-height:32px}.captions p{margin:0;padding:6px 10px;border-radius:6px;background:var(--surface);border:1px solid var(--line);font-size:14px}.captions .task{background:#f9a825;border-color:#f9a825;color:#000;font-weight:600}.scrub{position:relative}.scrub input{width:100%}.ticks{position:absolute;left:0;right:0;top:0;height:4px;pointer-events:none}.ticks span{position:absolute;width:2px;height:8px;background:var(--muted)}.controls,.controls-secondary{display:flex;flex-wrap:wrap;gap:6px;align-items:center}.controls button,.controls-secondary button,.controls-secondary select{min-height:40px;min-width:44px;padding:6px 10px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-size:15px}.controls .primary{background:var(--primary);color:var(--on-primary);border-color:var(--primary);min-width:64px}.step-label{margin:0;color:var(--muted);font-size:14px}.actions{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.button,.actions button{display:inline-flex;align-items:center;min-height:40px;padding:6px 14px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-size:15px;text-decoration:none;cursor:pointer}.button.primary{background:var(--primary);border-color:var(--primary);color:var(--on-primary)}.new-form{display:grid;gap:12px;max-width:420px}.new-form fieldset{border:1px solid var(--line);border-radius:10px;display:grid;gap:6px}.new-form .button{justify-content:center}body.editing .header{display:none}body.editing .page{max-width:none;padding:0}.editor{display:flex;flex-direction:column;height:100vh;height:100dvh;padding:0 8px 8px}.editor-main{display:flex;flex-direction:column;gap:8px;flex:1 1 auto;min-height:0;min-width:0}.editor-main>*{flex:none}.editor-main>.editor-stage{flex:1 1 auto}.editor-panel{display:none}.editor-panel.open{display:block;position:fixed;left:0;right:0;bottom:0;z-index:20;max-height:min(50vh,440px);max-height:min(50dvh,440px);overflow-y:auto;padding:0 8px 8px}.editor-panel.open .sheet{border-radius:16px 16px 10px 10px;box-shadow:0 -8px 24px #0003}.panel-hint{padding:12px}@media(min-width:900px){.editor{flex-direction:row;gap:16px;padding:0 16px 16px}.editor-panel,.editor-panel.open{display:block;position:static;flex:none;width:340px;max-height:none;overflow-y:auto;padding:56px 0 0}.editor-panel.open .sheet{border-radius:10px;box-shadow:none}}.topbar{display:flex;align-items:center;gap:4px;min-height:56px}.topbar button,.steps button,.seg button,.sheet button,.sheet select,.sheet input,.sheet textarea{min-height:40px;min-width:40px;padding:6px 10px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-size:15px}.topbar .icon-button{display:inline-grid;place-items:center;flex:none;width:44px;height:44px;min-width:0;padding:0;border:0;border-radius:8px;background:none;color:var(--ink)}.topbar .icon-button:active:not(:disabled){background:var(--line)}.topbar .topbar-title{flex:1;min-width:0;display:grid;text-align:left;padding:2px 4px;border:0;background:none;color:var(--ink)}.topbar-title span{font-weight:600;font-size:16px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.topbar-title small{font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.editor-stage{position:relative;min-height:160px;border-radius:12px;overflow:hidden}.board-top{position:absolute;top:8px;left:8px;right:8px;z-index:2;display:grid;gap:6px;pointer-events:none}.board-top>*{pointer-events:auto}.board-top>.board-status,.board-top>.toast{pointer-events:none}.toast button{pointer-events:auto}.board-hint,.board-status,.toast{margin:0;padding:6px 10px;border-radius:6px;background:#000c;color:#fff;font-size:14px}.board-hint,.toast{display:flex;gap:8px;align-items:center;justify-content:space-between}.board-status:empty{padding:0;background:none}.toast:empty{position:absolute;padding:0;background:none}.board-hint button,.toast button{min-height:32px;border-radius:6px;border:none;padding:4px 10px}.board-hint :focus-visible,.toast :focus-visible{outline-color:#fff}.board-top>.coach{pointer-events:none;display:flex;gap:10px;align-items:center;padding:6px 6px 6px 10px;border-radius:12px;background:var(--surface);color:var(--ink);box-shadow:0 4px 16px #0003;font-size:14px}.coach p{flex:1;margin:0;line-height:1.3}.coach-count{flex:none;padding:2px 8px;border-radius:999px;background:var(--select);color:var(--on-select);font-size:13px;font-weight:700}.coach button{pointer-events:auto;flex:none;min-height:40px;min-width:40px;padding:6px 10px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-size:15px}.steps{display:flex;gap:6px;overflow-x:auto;padding:4px;margin:-4px}.seg{display:flex;flex-wrap:wrap;gap:6px}.seg.modes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}.seg.modes button{display:grid;place-items:center;gap:2px;min-width:0;min-height:52px;padding:4px 2px;font-size:13px;overflow-wrap:anywhere}.seg button[aria-pressed=true],.steps button[aria-pressed=true],.controls-secondary button[aria-pressed=true]{background:var(--select);border-color:var(--select-edge);color:var(--on-select);box-shadow:inset 0 0 0 1px var(--select-edge);font-weight:600}.steps .primary{background:var(--primary);border-color:var(--primary);color:var(--on-primary)}.modebar{display:grid;gap:6px}.modebar .hint{margin:0;color:var(--muted);font-size:14px}button:disabled{opacity:.45;cursor:default}.sheet{display:grid;gap:8px;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}.sheet h3{margin:0;font-size:16px}.sheet h3:focus{outline:none}.field{display:grid;gap:4px;font-size:14px;color:var(--muted)}.field input,.field select,.field textarea{color:var(--ink);font-size:15px}.sheet-actions{display:flex;flex-wrap:wrap;gap:6px}.header-end{display:flex;align-items:center;gap:8px}.menu{position:relative}.menu summary{list-style:none;cursor:pointer;min-height:40px;display:flex;align-items:center;padding:6px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}.menu summary::-webkit-details-marker{display:none}.menu-items{position:absolute;right:0;top:calc(100% + 4px);z-index:10;display:grid;min-width:180px;padding:6px;background:var(--surface);border:1px solid var(--line);border-radius:10px}.menu-items a,.menu-items button{display:block;padding:10px 12px;text-align:left;border:none;background:none;color:var(--ink);font:inherit;text-decoration:none;border-radius:6px;cursor:pointer}.menu-items a:hover,.menu-items button:hover{background:var(--bg)}.modal{width:min(440px,calc(100vw - 32px));padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink)}.modal::backdrop{background:#0008}.modal h2{margin:0 0 8px;font-size:18px}.modal .sheet-actions{margin-top:12px}.signin{display:grid;gap:10px}.signin p{margin:0}.button.google{gap:10px;justify-content:center}.error{color:var(--danger);margin:0}.notice{margin:0;padding:8px 10px;border-radius:8px;background:#fff3e0;color:#5d4037}.muted{color:var(--muted);margin:0}.filters{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:8px;margin:12px 0}.filters input,.filters select{min-height:40px;padding:6px 10px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-size:15px;width:100%;min-width:0}.chips{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0 0}.chip,.badge{font-size:13px;padding:2px 8px;border-radius:999px;border:1px solid var(--line);color:var(--muted)}.badge{background:var(--bg);color:var(--ink)}.badge.warn{background:#f9a825;border-color:#f9a825;color:#000}.meta-line{color:var(--muted);margin:0 0 8px}.description{white-space:pre-wrap}.report-list{list-style:none;padding:0;display:grid;gap:10px}.report-list li{display:grid;gap:4px;padding:12px 14px;background:var(--surface);border:1px solid var(--line);border-radius:10px}.report-list small{color:var(--muted)}.stack-form{display:grid;gap:8px;max-width:420px;margin:12px 0}.stack-form input,.stack-form textarea{min-height:40px;padding:6px 10px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink)}.choice{border:1px solid var(--line);border-radius:10px;display:grid;gap:6px;font-size:14px}.choice legend{color:var(--muted)}.sheet .choice input{min-height:0;min-width:0;padding:0}.topbar .save{flex:none;padding:6px 12px;border-radius:999px;background:var(--primary);border-color:var(--primary);color:var(--on-primary);font-weight:600}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;border:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.steps .step-chip{position:relative;display:grid;place-items:center;min-width:48px;min-height:44px;padding:3px 10px;line-height:1.1;font-weight:600}.step-chip small{font-size:11px;font-weight:400;color:var(--muted)}.step-chip[aria-pressed=true] small{color:var(--on-select)}.step-chip .dot{position:absolute;top:4px;right:4px;width:6px;height:6px;border-radius:50%;background:var(--primary)}.steps .step-add{flex:none;color:var(--primary);border-style:dashed;white-space:nowrap}.steps .step-play{margin-left:auto;flex:none;width:44px;height:44px;border-radius:50%;display:grid;place-items:center}.steps button{flex:none}.step-chip[aria-pressed=true] .dot{background:var(--on-select)}.steps .step-play,.steps .step-more{position:sticky;z-index:1;box-shadow:-6px 0 6px var(--bg)}.steps .step-more{right:0}.steps .step-play{right:46px}.caption-line{margin:0}.caption-line input{width:100%;min-height:44px;padding:6px 12px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink)}p.caption-line{padding:4px 2px;font-size:14px}.board-caption{position:absolute;left:8px;right:8px;bottom:8px;margin:0;padding:6px 10px;border-radius:8px;background:#000c;color:#fff;font-size:14px;pointer-events:none;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.topbar .save.is-saved:disabled{opacity:1;background:transparent;border-color:var(--line);color:var(--primary)}.options{padding:8px}.option{display:flex;gap:10px;align-items:flex-start;padding:10px;border:1px solid var(--line);border-radius:8px;color:var(--ink);cursor:pointer}.option:has(input:checked){border:2px solid var(--primary);padding:9px}.option span{display:grid;gap:2px}.option small{color:var(--muted);font-size:13px}.sheet .primary{background:var(--primary);border-color:var(--primary);color:var(--on-primary);font-weight:600}.share-url{width:100%;min-height:40px;padding:6px 10px;border-radius:8px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font-size:14px}