:root{--bg: #0f1115;--bg-elevated: #171a21;--surface: #1f2430;--surface-strong: #262c3a;--border: #2e3342;--border-strong: #3a4152;--text: #e6e8ee;--text-muted: #9aa3b2;--text-dim: #6b7280;--digit-solved: #f2f4f9;--candidate: #a6afc0;--accent: #7aa2f7;--accent-soft: #7aa2f722;--accent-strong: #8ebaff;--accent-alt: #f7a27a;--accent-alt-soft: #f7a27a22;--accent-alt-strong: #ffb68e;--shared: #a78bfa;--shared-soft: #a78bfa22;--danger: #f07178;--success: #9ece6a;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 14px;--ease-out: cubic-bezier(.2, .7, .2, 1);--dur-fast: .12s;--dur-med: .22s;--font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;--font-digit: "Atkinson Hyperlegible", "Inter", system-ui, sans-serif;--grid-max: min(100vw, 100vmin);--cage-dash: 2px}@media(min-width:640px){:root{--grid-max: min(72vmin, 560px)}}*,*:before,*:after{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:var(--font-sans);color:var(--text);background:var(--bg);line-height:1.4;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}button:focus-visible{outline:2px solid var(--accent-strong);outline-offset:2px}