:root{--ink: #0c1022;--glass: rgba(255,255,255,.09);--glass-strong: rgba(255,255,255,.14);--glass-border: rgba(255,255,255,.22);--text: #f4f2ee;--text-dim: rgba(244,242,238,.55);--correct: #3fa06c;--present: #d9a832;--present-text: #1c1608;--absent: rgba(255,255,255,.06);--absent-border: rgba(255,255,255,.1);--accent: #f0906d}body.cb{--correct: #4a7dd6;--present: #e07a2f;--present-text: #fff4ec}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{height:100%}body{font-family:-apple-system,SF Pro Text,Hiragino Sans,Yu Gothic,sans-serif;background:var(--ink);color:var(--text);overflow:hidden;display:flex;justify-content:center;-webkit-user-select:none;user-select:none}.bg{position:fixed;inset:0;z-index:0;overflow:hidden}.blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5}.blob.pink{width:340px;height:340px;background:#d96a8f;top:-80px;left:-100px;animation:drift1 26s ease-in-out infinite alternate}.blob.gold{width:300px;height:300px;background:#c98a3e;bottom:10%;right:-120px;animation:drift2 32s ease-in-out infinite alternate}.blob.blue{width:280px;height:280px;background:#4a5fb5;bottom:-100px;left:10%;animation:drift1 38s ease-in-out infinite alternate-reverse}@keyframes drift1{to{transform:translate(60px,50px) scale(1.15)}}@keyframes drift2{to{transform:translate(-70px,-40px) scale(.9)}}@media(prefers-reduced-motion:reduce){.blob{animation:none}}.app{position:relative;z-index:1;width:100%;max-width:420px;height:100dvh;display:flex;flex-direction:column;padding:max(env(safe-area-inset-top),14px) max(env(safe-area-inset-right),14px) max(env(safe-area-inset-bottom),12px) max(env(safe-area-inset-left),14px)}header{display:flex;align-items:center;gap:8px;padding:2px 2px 10px}.wordmark{font-size:17px;font-weight:700;letter-spacing:.14em;flex:1}.wordmark span{color:var(--accent)}.icon-btn{width:34px;height:34px;border-radius:11px;border:1px solid var(--glass-border);background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:var(--text);font-size:16px;cursor:pointer;font-family:inherit;display:flex;align-items:center;justify-content:center}.streak-pill{display:flex;align-items:center;gap:4px;border:1px solid var(--glass-border);background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-radius:999px;padding:6px 12px;font-size:13px;font-weight:700}.streak-pill .flame{color:var(--accent)}.prompt{background:var(--glass);backdrop-filter:blur(24px) saturate(1.5);-webkit-backdrop-filter:blur(24px) saturate(1.5);border:1px solid var(--glass-border);border-radius:18px;box-shadow:inset 0 1px #ffffff2e,0 8px 28px #00000059;padding:12px 16px 10px;text-align:center;position:relative}.prompt .label{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-dim)}.prompt .kanji{font-family:Hiragino Mincho ProN,Yu Mincho,"Noto Serif JP",serif;font-size:48px;line-height:1.2;font-weight:600}.prompt .meaning{font-size:13px;color:var(--text-dim);min-height:18px}.prompt .meaning.revealed{color:var(--text)}.hint-btn{position:absolute;right:10px;top:10px;border:1px solid var(--glass-border);background:#ffffff14;color:var(--text-dim);font-size:11px;font-family:inherit;padding:5px 10px;border-radius:999px;cursor:pointer}.board{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:var(--board-gap, 6px);padding:10px 0;min-height:0;overflow:hidden}.row{display:flex;justify-content:center;gap:var(--board-gap, 6px)}.tile{width:var(--tile, 50px);height:var(--tile, 50px);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:calc(var(--tile, 50px) * .52);font-weight:600;background:var(--absent);border:1px solid var(--absent-border);transition:transform .08s}.tile.filled{border-color:var(--glass-border);background:var(--glass);transform:scale(1.04)}.tile.flip{animation:flip .45s ease forwards}@keyframes flip{0%{transform:rotateX(0)}49%{transform:rotateX(90deg)}51%{transform:rotateX(90deg)}to{transform:rotateX(0)}}@media(prefers-reduced-motion:reduce){.tile.flip{animation:none}}.tile.correct{background:var(--correct);border-color:var(--correct)}.tile.present{background:var(--present);border-color:var(--present);color:var(--present-text)}.tile.miss{background:#ffffff09;border-color:transparent;color:var(--text-dim)}.post-game{display:none;justify-content:center;gap:8px;padding-bottom:8px}.post-game.show{display:flex}.pill-btn{border:1px solid var(--glass-border);background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:var(--text);font-family:inherit;font-size:13px;font-weight:600;padding:9px 18px;border-radius:999px;cursor:pointer}.pill-btn.primary{background:var(--accent);color:#2a130a;border-color:transparent}.kb{background:var(--glass);backdrop-filter:blur(28px) saturate(1.6);-webkit-backdrop-filter:blur(28px) saturate(1.6);border:1px solid var(--glass-border);border-radius:22px;box-shadow:inset 0 1px #ffffff2e,0 10px 30px #0006;padding:8px}.kb-grid{display:grid;grid-template-columns:repeat(10,1fr);gap:4px}body[data-kb=compact]{--key-h: 32px}body[data-kb=tall]{--key-h: 46px}.key{height:var(--key-h, 38px);border-radius:9px;border:none;background:#ffffff1a;color:var(--text);font-size:16px;font-weight:500;font-family:inherit;cursor:pointer;transition:background .12s;touch-action:manipulation}.key:active{background:#ffffff47}.key.ghost{background:transparent;pointer-events:none}.key.k-correct{background:var(--correct)}.key.k-present{background:var(--present);color:var(--present-text)}.key.k-miss{background:#ffffff08;color:#f4f2ee4d}.kb-bottom{display:grid;grid-template-columns:1fr 1fr 1fr 1.6fr 1.6fr;gap:4px;margin-top:4px}.kb-bottom .key{font-size:15px}.key.enter{background:var(--accent);color:#2a130a;font-weight:700}.key.enter:active{background:#ffb192}.footer{display:flex;justify-content:center;gap:8px;padding-top:10px}.endless-btn{border:1px solid var(--glass-border);background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);color:var(--text);font-family:inherit;font-size:13px;padding:8px 18px;border-radius:999px;cursor:pointer}.endless-btn .lock{color:var(--accent);margin-right:4px}.toast{position:fixed;top:70px;left:50%;transform:translate(-50%);background:#14182ceb;border:1px solid var(--glass-border);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);color:var(--text);font-size:14px;padding:10px 18px;border-radius:12px;opacity:0;pointer-events:none;transition:opacity .25s;z-index:60;max-width:85%;text-align:center}.toast.show{opacity:1}.overlay{position:fixed;inset:0;z-index:40;background:#080a168c;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:none;align-items:center;justify-content:center;padding:20px}.overlay.show{display:flex}.card{width:100%;max-width:350px;max-height:88dvh;overflow-y:auto;background:var(--glass-strong);backdrop-filter:blur(32px) saturate(1.6);-webkit-backdrop-filter:blur(32px) saturate(1.6);border:1px solid var(--glass-border);border-radius:24px;box-shadow:inset 0 1px #ffffff38,0 20px 50px #00000080;padding:22px;text-align:center}.card h2{font-size:19px;margin-bottom:4px}.card .big-kana{font-family:Hiragino Mincho ProN,Yu Mincho,serif;font-size:32px;margin:6px 0 2px}.card p{font-size:14px;color:var(--text-dim);line-height:1.5;margin-bottom:14px}.card .cta{width:100%;border:none;border-radius:14px;padding:13px;background:var(--accent);color:#2a130a;font-size:15px;font-weight:700;font-family:inherit;cursor:pointer;margin-bottom:8px}.card .quiet{width:100%;border:none;border-radius:14px;padding:11px;background:#ffffff1a;color:var(--text);font-size:14px;font-family:inherit;cursor:pointer}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:14px 0}.stat{background:#ffffff12;border:1px solid var(--glass-border);border-radius:14px;padding:10px 4px}.stat .num{font-size:22px;font-weight:700}.stat .lbl{font-size:10px;color:var(--text-dim);letter-spacing:.04em}.dist{text-align:left;margin-bottom:14px}.dist-row{display:flex;align-items:center;gap:8px;margin-bottom:5px;font-size:12px}.dist-bar{height:20px;border-radius:6px;background:#ffffff1f;display:flex;align-items:center;justify-content:flex-end;padding-right:7px;font-weight:700;min-width:24px;transition:width .4s ease}.dist-bar.hot{background:var(--correct)}.setting{display:flex;align-items:center;justify-content:space-between;padding:12px 2px;border-bottom:1px solid rgba(255,255,255,.08);text-align:left}.setting:last-of-type{border-bottom:none;margin-bottom:10px}.setting .s-label{font-size:14px}.setting .s-sub{font-size:11px;color:var(--text-dim)}.seg{display:flex;background:#ffffff14;border-radius:10px;padding:3px;gap:2px}.seg button{border:none;background:transparent;color:var(--text-dim);font-size:12px;font-family:inherit;padding:6px 10px;border-radius:8px;cursor:pointer}.seg button.on{background:#fff3;color:var(--text);font-weight:600}#segLevel button{padding:6px 7px}.switch{width:46px;height:27px;border-radius:999px;background:#ffffff24;border:1px solid var(--glass-border);position:relative;cursor:pointer;transition:background .2s;flex-shrink:0}.switch:after{content:"";position:absolute;width:21px;height:21px;border-radius:50%;background:#fff;top:2px;left:2px;transition:left .2s}.switch.on{background:var(--correct)}.switch.on:after{left:21px}.time-sel{background:#ffffff14;border:1px solid var(--glass-border);color:var(--text);font-family:inherit;font-size:13px;font-weight:600;border-radius:10px;padding:7px 10px;cursor:pointer}.time-sel option{color:#111}@media(max-height:700px){header{padding-bottom:6px}.prompt{padding:8px 14px 6px}.prompt .kanji{font-size:36px}.kb{padding:6px;border-radius:18px}body:not([data-kb=compact]):not([data-kb=tall]){--key-h: 33px}.key{font-size:15px}.footer{padding-top:6px}.endless-btn{padding:6px 16px;font-size:12px}}.about{text-align:left;padding:12px 2px 0;border-top:1px solid rgba(255,255,255,.08);margin-bottom:12px}.about h3{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-dim);margin-bottom:6px;font-weight:600}.about p{font-size:11px;color:var(--text-dim);line-height:1.5;margin-bottom:6px}.about a{color:var(--accent);text-decoration:none}.archive-list{max-height:48dvh;overflow-y:auto;margin:4px 0 12px}.archive-row{width:100%;display:flex;align-items:center;gap:8px;padding:10px 12px;margin-bottom:6px;border-radius:12px;background:#ffffff0f;border:1px solid rgba(255,255,255,.08);color:var(--text);font-family:inherit;font-size:13px;cursor:pointer;text-align:left}.archive-row .a-num{font-weight:700}.archive-row .a-mid{flex:1;display:flex;flex-direction:column;gap:1px;min-width:0}.archive-row .a-date{color:var(--text-dim);font-size:12px}.archive-row .a-word{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.archive-row .a-state{font-weight:700;font-size:12px}.a-state.won{color:var(--correct)}.a-state.lost{color:var(--accent)}.a-state.unplayed{color:var(--text-dim)}#shareImg{width:100%;border-radius:16px;margin-bottom:12px;border:1px solid var(--glass-border)}