:root{--bg: #f7f3ee;--panel: #ffffff;--panel-2: #faf6ef;--ink: #1f1b13;--ink-2: #5c5244;--ink-3: #9a8d7b;--border: #e2d9c8;--accent: #a33737;--accent-ink: #ffffff;--correct: #4b7a33;--wrong: #b23b3b;color-scheme:light}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:Hiragino Mincho ProN,Yu Mincho,YuMincho,Times New Roman,serif;font-size:16px;line-height:1.7;min-height:100vh}#app{min-height:100vh;display:flex;flex-direction:column;max-width:720px;margin:0 auto;padding:24px 20px 40px}header{text-align:center;padding:8px 0 20px;border-bottom:1px solid var(--border);margin-bottom:24px}header h1{margin:0;font-size:28px;font-weight:700;letter-spacing:.04em}header .subtitle{margin:4px 0 0;color:var(--ink-2);font-size:13px;letter-spacing:.08em;font-family:ui-sans-serif,system-ui,-apple-system,Hiragino Kaku Gothic ProN,Yu Gothic,sans-serif}.controls{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:24px;font-family:ui-sans-serif,system-ui,-apple-system,Hiragino Kaku Gothic ProN,Yu Gothic,sans-serif;font-size:13px}.mode-switch{display:inline-flex;background:var(--panel-2);border:1px solid var(--border);border-radius:999px;overflow:hidden}.mode-switch button{padding:6px 14px;border:0;background:transparent;cursor:pointer;color:var(--ink-2);font:inherit}.mode-switch button.active{background:var(--accent);color:var(--accent-ink)}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:28px 24px;box-shadow:0 1px 3px #0000000a}.kami{text-align:center;font-size:24px;line-height:1.9;letter-spacing:.04em;margin:0 0 16px;min-height:80px}.kami-yomi{text-align:center;font-size:13px;color:var(--ink-3);margin:0 0 8px;font-family:ui-sans-serif,system-ui,-apple-system,Hiragino Kaku Gothic ProN,sans-serif;letter-spacing:.08em}.speak-row{display:flex;justify-content:center;gap:8px;margin-bottom:18px}.speak-btn{padding:6px 14px;border:1px solid var(--border);border-radius:999px;background:var(--panel-2);color:var(--ink-2);font-size:12px;cursor:pointer;font-family:ui-sans-serif,system-ui,-apple-system,Hiragino Kaku Gothic ProN,sans-serif}.speak-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.speak-btn:disabled{opacity:.5;cursor:not-allowed}.prompt{text-align:center;color:var(--ink-2);font-size:13px;margin:16px 0 12px;font-family:ui-sans-serif,system-ui,-apple-system,Hiragino Kaku Gothic ProN,sans-serif}.choices{display:grid;gap:10px}.choice{width:100%;padding:14px 18px;border:1px solid var(--border);border-radius:8px;background:var(--panel);color:var(--ink);font-size:17px;line-height:1.6;text-align:center;cursor:pointer;font-family:inherit;transition:border-color .12s,background .12s}.choice:hover:not(:disabled){border-color:var(--accent);background:var(--panel-2)}.choice.correct{border-color:var(--correct);background:#e9f3df;color:var(--correct)}.choice.wrong{border-color:var(--wrong);background:#f7dede;color:var(--wrong)}.choice.reveal{border-color:var(--correct);color:var(--correct)}.reveal-row{margin-top:20px;text-align:center;font-family:ui-sans-serif,system-ui,-apple-system,Hiragino Kaku Gothic ProN,sans-serif;font-size:13px;color:var(--ink-2)}.reveal-row strong{color:var(--ink)}.next-btn{margin-top:14px;padding:10px 28px;border:1px solid var(--accent);border-radius:999px;background:var(--accent);color:var(--accent-ink);font-size:14px;cursor:pointer;font-family:ui-sans-serif,system-ui,-apple-system,Hiragino Kaku Gothic ProN,sans-serif}.next-btn:hover{background:#8a2e2e}.stats{margin-top:20px;text-align:center;color:var(--ink-2);font-size:13px;font-family:ui-sans-serif,system-ui,-apple-system,Hiragino Kaku Gothic ProN,sans-serif}.done-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:40px 24px;text-align:center}.done-card h2{margin:0 0 12px;font-size:22px}.done-card p{margin:6px 0;color:var(--ink-2)}footer{margin-top:auto;padding-top:24px;font-size:12px;color:var(--ink-3);text-align:center;font-family:ui-sans-serif,system-ui,-apple-system,Hiragino Kaku Gothic ProN,sans-serif}footer a{color:var(--ink-2)}