:root{--bg:#f7f7f5;--panel:#fff;--text:#1d1d1f;--muted:#6b6b70;--border:#e2e2e0;--primary:#2b5fd9;--primary-text:#fff;--ok:#1a7f4b;--warn:#b26a00;--bad:#c0392b;--hit-top:#eef3ff;color:var(--text);background:var(--bg);font-family:Hiragino Sans,Noto Sans JP,system-ui,sans-serif}@media (prefers-color-scheme:dark){:root{--bg:#161618;--panel:#1f1f22;--text:#ececee;--muted:#9a9aa0;--border:#333338;--primary:#5b8cff;--ok:#4cc488;--warn:#f0a630;--bad:#ff6b5b;--hit-top:#1f2a44}}*{box-sizing:border-box}body{background:var(--bg);margin:0}.app{gap:12px;max-width:760px;margin:0 auto;padding:12px 16px;display:grid}.panel{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:12px 14px}.muted{color:var(--muted)}.small{margin-top:8px;font-size:12px}.tag{border:1px solid var(--border);color:var(--muted);border-radius:999px;padding:1px 6px;font-size:11px}.btn{font:inherit;border:1px solid var(--border);background:var(--panel);min-height:44px;color:var(--text);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;gap:6px;padding:6px 14px;font-size:15px;display:inline-flex}.btn:disabled{opacity:.5;cursor:default}.btn.wide{width:100%;margin-top:8px}.btn:hover{filter:brightness(.95)}.btn.primary{background:var(--primary);border-color:var(--primary);color:var(--primary-text)}.btn.danger{color:var(--bad)}.pace-main{flex-wrap:wrap;align-items:baseline;gap:16px;display:flex}.pace-clock{font-variant-numeric:tabular-nums;font-size:32px;font-weight:700}.pace-current{font-size:22px;font-weight:700}.pace-lead{font-weight:600}.pace-lead.ok{color:var(--ok)}.pace-lead.warn{color:var(--warn)}.pace-lead.bad{color:var(--bad)}.pace-actions{flex-wrap:wrap;align-items:center;gap:8px;margin-top:8px;display:flex}.pace-actions input{width:64px;font:inherit;padding:4px}.pace-flags{color:var(--warn);margin-top:8px;font-size:13px}.search-input{width:100%;font:inherit;border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:8px;padding:10px 12px;font-size:18px}.hits{gap:8px;margin:10px 0 0;padding:0;list-style:none;display:grid}.hit{border:1px solid var(--border);border-radius:8px;padding:8px 10px}.hit.top{background:var(--hit-top)}.hit-head{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.hit-def{margin:4px 0 0;line-height:1.6}.hit-detail{color:var(--muted);margin:4px 0 0;font-size:13px}.voice-row{flex-wrap:wrap;align-items:center;gap:14px;display:flex}.switch{cursor:pointer;align-items:center;gap:6px;display:inline-flex}.voice select{font:inherit;padding:2px 4px}.btn.mic{margin-left:auto}.btn.mic.listening{background:var(--bad);border-color:var(--bad);color:#fff;animation:1.2s infinite pulse}@keyframes pulse{50%{opacity:.7}}.error{color:var(--bad)}.icon-btn{cursor:pointer;background:0 0;border:none;margin-left:auto;padding:0 4px;font-size:16px}.latency{margin-top:8px;font-size:13px}.latency summary{cursor:pointer}.latency table{border-collapse:collapse;width:100%;margin-top:6px;font-size:12px}.latency th,.latency td{text-align:left;border-bottom:1px solid var(--border);padding:3px 6px}.small-btn{margin-top:6px;padding:3px 8px;font-size:12px}.tabs{border-bottom:1px solid var(--border);align-items:center;gap:4px;display:flex}.app-title{margin-right:auto;font-weight:700}.tab{font:inherit;min-height:44px;color:var(--muted);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;padding:0 14px}.tab.active{color:var(--text);border-bottom-color:var(--primary);font-weight:600}.home-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.countdown{font-size:20px;font-weight:700}.plan-line{margin:6px 0 0}.section-title{margin:0 0 8px;font-size:15px}.cat-list{margin:0;padding:0;list-style:none}.cat-row{width:100%;min-height:44px;font:inherit;color:var(--text);border:none;border-bottom:1px solid var(--border);cursor:pointer;text-align:left;background:0 0;grid-template-columns:9em 1fr auto 1em;align-items:center;gap:10px;padding:4px 2px;display:grid}.cat-row:hover{background:var(--hit-top)}.cat-count{font-variant-numeric:tabular-nums;font-size:12px}.chev{color:var(--muted)}.bar{background:var(--border);border-radius:4px;height:8px;position:relative;overflow:hidden}.bar-seen,.bar-mastered{position:absolute;top:0;bottom:0;left:0}.bar-seen{background:color-mix(in srgb, var(--primary) 35%, transparent)}.bar-mastered{background:var(--primary)}.card-head{align-items:center;gap:8px;display:flex}.card-head .icon-btn{min-width:44px;min-height:44px;margin-left:auto}.small-inline{font-size:12px}.card-front{text-align:center;padding:28px 8px;font-size:26px;font-weight:700}.card-front.reverse{text-align:left;font-size:17px;font-weight:500;line-height:1.7}.card-back{border-top:1px dashed var(--border);padding-top:10px}.card-answer{margin:0;font-size:17px;line-height:1.7}.note{width:100%;font:inherit;border:1px solid var(--border);background:var(--bg);min-height:44px;color:var(--text);resize:vertical;border-radius:8px;margin-top:8px;padding:6px 8px;font-size:16px}.grade-row{grid-template-columns:repeat(3,1fr);gap:8px;margin-top:10px;display:grid}.grade.again{color:var(--bad)}.grade.hard{color:var(--warn)}.grade.good{color:var(--ok)}.kbd{color:var(--muted);border:1px solid var(--border);border-radius:4px;padding:0 4px;font-size:11px}.center{text-align:center}.big{font-size:18px}.row{flex-wrap:wrap;gap:8px;display:flex}.date-input{font:inherit;min-height:44px;padding:4px 8px;font-size:16px}.tag,.btn,.small-inline{white-space:nowrap}.card-head .small-inline{text-overflow:ellipsis;min-width:0;overflow:hidden}.text-input{font:inherit;border:1px solid var(--border);background:var(--bg);min-height:44px;color:var(--text);border-radius:8px;flex:1;min-width:10em;padding:4px 10px;font-size:16px}