:root{--ad-slot-width:160px}@media (width<=1200px){aside.ad{display:none}}*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#f8fafc;--panel:#fff;--line:#e2e8f0;--text:#1e293b;--muted:#64748b;--accent:#1e293b;--accent-strong:#0f172a;--radius:8px;--radius-lg:12px;--shadow-card:0 12px 32px #0f172a1f;--column-max:900px;--board-max:min(100vw - 24px, 100dvh - 180px)}body{background-color:var(--bg);color:var(--text);overscroll-behavior-y:contain;-webkit-tap-highlight-color:transparent;min-height:100dvh;font-family:system-ui,-apple-system,Segoe UI,sans-serif}a,button,select,[role=button]{touch-action:manipulation}.board-wrap{touch-action:manipulation;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.hidden{display:none!important}header{padding:12px 20px;padding:calc(12px + env(safe-area-inset-top)) calc(20px + env(safe-area-inset-right)) 12px calc(20px + env(safe-area-inset-left));border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;display:flex}.header-brand{align-items:center;gap:10px;display:flex}.header-logo{width:32px;height:32px}.header-title{font-size:1.2rem;font-weight:700}.header-home{color:var(--muted);font-size:.9rem;text-decoration:none}@media (hover:hover){.header-home:hover{color:var(--text)}}.header-actions{align-items:center;gap:12px;display:flex}.header-sound{background-color:var(--panel);width:36px;height:36px;color:var(--text);border:1px solid var(--line);border-radius:var(--radius);cursor:pointer;justify-content:center;align-items:center;padding:0;font-family:inherit;font-size:1.05rem;display:inline-flex}@media (hover:hover){.header-sound:hover{border-color:var(--accent)}}main{grid-template-columns:var(--ad-slot-width) minmax(0, var(--column-max)) var(--ad-slot-width);padding:24px 16px 48px;padding-left:calc(16px + env(safe-area-inset-left));padding-right:calc(16px + 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button.primary{background-color:var(--text);border-color:var(--text);color:var(--panel);font-weight:600}@media (hover:hover){.controls button.primary:hover:not(:disabled),.toolbar button.primary:hover:not(:disabled){background-color:var(--accent-strong);border-color:var(--accent-strong)}}.icon{vertical-align:-.15em;width:1em;height:1em}.controls .check-label{color:var(--muted);cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:6px;font-size:.9rem;display:flex}.controls .check-label input{accent-color:var(--accent)}.hud{color:var(--muted);flex-wrap:wrap;justify-content:center;gap:18px;font-size:.9rem;display:flex}.hud strong{color:var(--text);font-variant-numeric:tabular-nums}.result{width:min(100%,520px);padding:18px 20px;padding-bottom:calc(18px + env(safe-area-inset-bottom));text-align:center;background-color:var(--panel);border:1px solid var(--line);z-index:20;border-bottom:none;border-radius:16px 16px 0 0;flex-direction:column;align-items:center;gap:10px;line-height:1.5;animation:.2s ease-out result-rise;display:flex;position:fixed;bottom:0;left:50%;transform:translate(-50%);box-shadow:0 -12px 32px #0f172a24}@keyframes result-rise{0%{opacity:0;transform:translate(-50%,24px)}}.result h2{color:var(--text);font-size:1.5rem}.result p{color:var(--muted);font-variant-numeric:tabular-nums}.result .stat-grid{justify-content:center;gap:18px;display:flex}.result .stat-grid div{flex-direction:column;display:flex}.result .stat-grid strong{color:var(--text);font-variant-numeric:tabular-nums;font-size:1.2rem}.result .stat-grid span{color:var(--muted);font-size:.72rem}.overlay-actions,.overlay-buttons{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:4px;display:flex}.result button{background-color:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:var(--radius);white-space:nowrap;cursor:pointer;padding:9px 18px;font-family:inherit;font-size:.95rem}@media (hover:hover){.result button:hover{border-color:var(--text)}}.result button.primary{background-color:var(--text);border-color:var(--text);color:var(--panel);font-weight:600}@media (hover:hover){.result button.primary:hover{background-color:var(--accent-strong)}}article{width:100%;max-width:680px;color:var(--muted);flex-direction:column;gap:20px;margin-top:24px;font-size:.95rem;line-height:1.7;display:flex}article h2{color:var(--text);border-bottom:1px solid var(--line);padding-bottom:6px;font-size:1.2rem}article ul{padding-left:20px}article table{border-collapse:collapse;width:100%;max-width:440px}article td,article th{border:1px solid var(--line);text-align:left;padding:6px 12px}article kbd{background-color:var(--panel);border:1px solid var(--line);color:var(--text);border-radius:4px;padding:1px 6px;font-size:.85em}article a{color:var(--accent-strong)}footer{text-align:center;padding:24px;padding-bottom:calc(24px + env(safe-area-inset-bottom));color:var(--muted);border-top:1px solid 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12px}}:root{--board:#fff;--slot:#e2e8f0;--slot-filled:#94a3b8;--mark-correct:#059669;--mark-present:#d97706;--mark-absent:#cbd5e1;--mark-absent-fg:#475569;--key:#e2e8f0;--key-hover:#cbd5e1;--key-spent:#f1f5f9;--key-spent-fg:#94a3b8}body.high-contrast{--mark-correct:#0284c7;--mark-present:#ea580c}.board-wrap{flex-direction:column;align-items:center;gap:6px;display:flex;position:relative}#board{--cols:5;--tile:clamp(38px, 10vmin, 58px);background-color:var(--board);border:1px solid var(--line);border-radius:10px;flex-direction:column;gap:6px;padding:10px;display:flex}#board[data-length="6"]{--tile:clamp(34px, 9vmin, 54px)}#board.loading{opacity:.4}.row{grid-template-columns:repeat(var(--cols), var(--tile));gap:6px;display:grid}.tile{width:var(--tile);height:var(--tile);border:2px solid var(--slot);color:var(--text);font-size:calc(var(--tile) * .5);text-transform:uppercase;-webkit-user-select:none;user-select:none;background-color:#0000;border-radius:6px;justify-content:center;align-items:center;font-weight:700;line-height:1;display:flex}.tile.filled{border-color:var(--slot-filled)}.tile[data-mark=correct]{background-color:var(--mark-correct);border-color:var(--mark-correct);color:#fff}.tile[data-mark=present]{background-color:var(--mark-present);border-color:var(--mark-present);color:#fff}.tile[data-mark=absent]{background-color:var(--mark-absent);border-color:var(--mark-absent);color:var(--mark-absent-fg)}.tile.flip{animation:flip var(--flip,.32s) ease-in-out}.tile.flip>span{animation:unflip var(--flip,.32s) ease-in-out}@keyframes flip{50%{transform:rotateX(90deg)}}@keyframes unflip{50%{transform:rotateX(-90deg)}}.tile.pop{animation:.1s ease-out pop}@keyframes pop{50%{transform:scale(1.08)}}.tile.bounce{animation:.48s bounce}@keyframes bounce{30%{transform:translateY(-22%)}55%{transform:translateY(4%)}75%{transform:translateY(-8%)}}.row.shake{animation:.38s shake}@keyframes shake{20%{transform:translate(-7px)}40%{transform:translate(7px)}60%{transform:translate(-4px)}80%{transform:translate(4px)}}#toast{background-color:var(--text);color:#fff;white-space:nowrap;opacity:0;pointer-events:none;z-index:3;border-radius:8px;padding:8px 16px;font-size:.9rem;font-weight:600;transition:opacity .14s;position:absolute;bottom:calc(100% + 6px);left:50%;transform:translate(-50%)}#toast.show{opacity:1}#keyboard{flex-direction:column;align-items:center;gap:6px;width:100%;max-width:500px;display:flex}.key-row{justify-content:center;gap:5px;width:100%;display:flex}.key{background-color:var(--key);min-width:0;height:52px;color:var(--text);text-transform:uppercase;cursor:pointer;-webkit-user-select:none;user-select:none;border:none;border-radius:6px;flex:auto;font-size:.85rem;font-weight:700}.key.wide{flex:1.5 auto;font-size:.75rem}@media (hover:hover){.key:hover{background-color:var(--key-hover)}}.key[data-mark=correct]{background-color:var(--mark-correct);color:#fff}.key[data-mark=present]{background-color:var(--mark-present);color:#fff}.key[data-mark=absent]{background-color:var(--key-spent);color:var(--key-spent-fg)}#end-word{letter-spacing:.14em;color:var(--text);font-size:1.6rem;font-weight:800}.dist{flex-direction:column;gap:3px;width:min(240px,70vw);margin-top:10px;display:flex}.dist-row{color:var(--muted);align-items:center;gap:6px;font-size:.75rem;display:flex}.dist-bar{background-color:var(--line);color:var(--text);text-align:right;font-variant-numeric:tabular-nums;border-radius:3px;padding:1px 6px}.dist-bar.latest{background-color:var(--mark-correct);color:#fff}