:root{--bg-page: #0d1f1a;--bg-panel: #061410;--bg-deep: #040f0c;--bg-hint: #061c15;--border-subtle: #143328;--border-strong: #1e4a35;--text-primary: #d8ede6;--text-secondary: #8ab8a0;--text-muted: #5a8870;--text-disabled: #3a6050;--text-on-white: #333;--text-accent: #6aaa88;--action-primary: #1a6b4a;--action-secondary: #c0392b;--action-commit: #2e7d32;--action-disabled: #2a4a38;--accent-primary: #f0c040;--accent-secondary: #6a9e78;--accent-intense: #e74c3c}[data-theme=paper]{--bg-page: #f5f0e8;--bg-panel: #e8e0d0;--bg-deep: #ede8de;--bg-hint: #ddd5c5;--border-subtle: #c8baa0;--border-strong: #a09070;--text-primary: #1a1008;--text-secondary: #6a5840;--text-muted: #8a7058;--text-disabled: #a89878;--text-on-white: #333;--text-accent: #4a6fa5;--action-primary: #4a6fa5;--action-secondary: #8b1a00;--action-commit: #2d6a2d;--action-disabled: #b0a090;--accent-primary: #8b1a00;--accent-secondary: #4a6fa5;--accent-intense: #c0392b}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:system-ui,sans-serif;background:var(--bg-page);color:var(--text-primary)}button{font-size:inherit}.home-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;gap:16px}.home-page h1{font-size:2.5rem;margin:0}.home-page .explanation{max-width:25rem;text-align:left;font-size:1.1rem;color:var(--text-secondary)}.home-page p{font-size:1.2rem;margin:1rem}.mode-button{padding:12px 32px;font-size:1.1rem;border:none;border-radius:8px;cursor:pointer;color:#fff;text-decoration:none}.daily-button{background:var(--action-secondary)}.practice-button{background:var(--action-primary)}.game-page{max-width:650px;margin:0 auto;padding:18px}.game-header{display:flex;align-items:center;gap:12px;margin-bottom:12px;padding:0 2px}.game-header-home{font-weight:700;color:var(--text-primary);text-decoration:none;flex:1}.game-header-home:hover{color:var(--accent-primary)}.game-header-nav{display:flex;gap:8px}.game-header-nav a{font-size:.85rem;color:#fff;text-decoration:none;padding:4px 12px;border-radius:6px}.game-header-nav a.daily{background:var(--action-secondary)}.game-header-nav a.practice{background:var(--action-primary)}.context-bar{display:flex;align-items:center;flex-wrap:wrap;margin-bottom:12px;font-size:.85rem;background:var(--bg-panel);border-radius:8px;border:1px solid var(--border-subtle);overflow:hidden}@media (max-width: 480px){.context-bar-section:first-child{flex:0 0 100%;border-bottom:1px solid var(--border-subtle)}.context-bar-section:nth-child(2){border-left:none}}.context-bar-section{display:flex;align-items:center;gap:6px;padding:8px 12px}.context-bar-section+.context-bar-section{border-left:1px solid var(--border-subtle)}.context-bar-timer{margin-left:auto}.puzzle-label{color:var(--text-muted);font-size:.8rem;white-space:nowrap}.wind-chip{color:var(--text-secondary);font-size:.8rem}.wind-chip strong{color:var(--text-primary);margin-left:2px}.dora-label{color:var(--text-secondary);font-size:.8rem}.timer{font-weight:700;color:var(--accent-primary);font-variant-numeric:tabular-nums}button.tile{cursor:pointer;text-align:left}.panel{background:var(--bg-panel);border-radius:6px;padding:12px}.tile-grid{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:12px}.tile{width:40px;height:60px;border:none;border-radius:4px;background:transparent;display:flex;align-items:left;justify-content:left;cursor:default;background-color:#fff;padding:4px;flex-direction:column}.tile .tile-label{color:var(--text-on-white);font-size:10px;position:absolute;margin-top:0;margin-left:0}.tile img{width:100%;height:100%;object-fit:contain;display:block;border-radius:3px;padding:1px;margin-top:10px}.tile.selected{outline:2px solid var(--accent-primary);outline-offset:1px}.tile.locked{outline:2px solid var(--accent-secondary);outline-offset:1px;cursor:default}.tile.empty{border:2px solid var(--border-strong);background:var(--bg-deep);color:var(--border-strong);cursor:default;justify-content:center;align-items:center}.tile:disabled{cursor:default;opacity:.7}.tile-labels-hidden .tile .tile-label{display:none}.tile-labels-hidden .tile img{margin-top:0;padding:0}.hand-slots{display:flex;flex-wrap:wrap;gap:10px;min-height:64px;margin-bottom:12px}.error-message{color:var(--accent-intense);font-size:.9rem;margin:8px 0}.hand-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:24px}.action-button{padding:12px;font-size:1rem;color:#fff;border:none;border-radius:6px;cursor:pointer}.action-button:disabled{background:var(--action-disabled);color:var(--text-disabled)}.reset-button{background:var(--action-primary)}.commit-button{background:var(--action-commit)}@media (max-width: 480px){.tile-grid,.hand-slots{gap:15px}}.score-reveal{padding:16px}.score-main{display:flex;align-items:center;gap:12px;margin-bottom:8px}.han{font-size:1.8rem;font-weight:700;color:var(--accent-primary)}.points{font-size:1.4rem;color:var(--accent-intense)}.star{font-size:1.4rem}.score-compact{font-size:.9rem;color:var(--text-muted);margin-bottom:12px}.details-toggle{background:none;border:1px solid var(--border-strong);color:var(--text-muted);padding:2px 8px;border-radius:4px;cursor:pointer;margin-left:8px;font-size:.8rem}.yaku-breakdown{background:var(--bg-deep);border-radius:4px;padding:12px;margin-bottom:12px}.score-row{display:flex;justify-content:space-between;padding:4px 0}.yaku-description{color:var(--text-muted);font-size:.9rem}.yaku-total{border-top:1px solid var(--border-strong);margin-top:8px;padding-top:8px;color:var(--text-primary);font-weight:700}.fu-breakdown{padding-top:8px}.fu-row{font-style:italic;color:var(--text-secondary)}.fu-total{padding:4px 0;color:var(--text-primary);text-align:right}.optimal-hint{color:var(--text-accent);font-size:.9rem;padding:8px;background:var(--bg-hint);border-radius:4px;margin-bottom:12px}.result-footer{display:flex;justify-content:space-between;align-items:center}.elapsed{color:var(--text-muted);font-size:.9rem}.share-results-button{background:var(--action-primary);color:#fff;border:none;border-radius:6px;padding:8px 16px;cursor:pointer}.settings{margin:2em 0 1em}.settings-label{font-size:.9rem;color:var(--text-muted);margin-right:8px}.settings>button{opacity:0}.settings:hover>button{opacity:1}.theme-toggle{background:var(--bg-panel);border:1px solid var(--border-subtle);color:var(--text-muted);border-radius:6px;padding:5px 10px;font-size:.75rem;cursor:pointer}.theme-toggle:hover{color:var(--text-primary);border-color:var(--border-strong)}