:root[data-theme=noir],:root{--surface-0:#030303;--surface-1:#0a0a0f;--surface-2:#111118;--surface-3:#1a1a24;--surface-4:#24243a;--ink:#e8e4d9;--ink-secondary:#b8b4a9;--ink-muted:#8a8575;--ink-faint:#4a463a;--ink-accent:#c8a44e;--ink-link:#6b8fc4;--border:#c8a44e1f;--border-focus:#c8a44e4d;--shadow:0 4px 24px #0009;--shadow-elevated:0 8px 32px #000c;--eye-idle:#4a6fa5;--eye-correct:#7ab8f5;--eye-streak:gold;--eye-wrong:#3a5a8a;--eye-absent:#2a3a5a;--danger:#8b2020;--danger-bg:#2a0a0a;--success:#2d4a27;--success-bg:#0a1a0a;--warning:#8b6914;--warning-bg:#1a1505;--premium:#c8a44e;--premium-bg:#1a1608;--premium-hover:#24200e;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-normal:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.4s cubic-bezier(.4, 0, .2, 1);--transition-spring:.5s cubic-bezier(.34, 1.56, .64, 1);--font-display:"Noto Serif JP", "Georgia", serif;--font-body:"Noto Sans JP", "Hiragino Sans", system-ui, sans-serif;--font-mono:"JetBrains Mono", "Fira Code", monospace;--radius-sm:4px;--radius-md:8px;--radius-lg:16px;--radius-full:9999px;--max-width:480px;--blind-width:3px;--blind-gap:8px;--blind-color:#c8a44e14;--blind-active:#4a6fa526}::-webkit-scrollbar{background:var(--surface-1);width:4px}::-webkit-scrollbar-thumb{background:var(--surface-3);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--ink-muted)}::selection{background:var(--ink-accent);color:var(--surface-0)}