:root{--bg: #07080c;--surface: #12141a;--card: #161a24;--line: #2a2e38;--text: #e8eceb;--muted: #8b9390;--accent: #9fd8d0;--accent-dim: #6aa39b;--ink: #141210;--paper: #f3eee4;--cell: #fffaf3;--cell-given: #ebe4d6;--coral: #e07a5f;--shadow: 0 18px 40px rgba(0, 0, 0, .35);--font-display: "Fraunces", Georgia, serif;--font-sans: "DM Sans", "Segoe UI", system-ui, sans-serif;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--safe-top: max(16px, calc(env(safe-area-inset-top, 0px) + 12px) );--safe-bottom: max(18px, calc(env(safe-area-inset-bottom, 0px) + 14px) )}*,*:before,*:after{box-sizing:border-box}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}html,body,#root,.app{min-height:100%}body{margin:0;background:radial-gradient(ellipse at 50% -10%,rgba(159,216,208,.12),transparent 46%),var(--bg);color:var(--text);font-family:var(--font-sans)}button{font:inherit;color:inherit}button:not(:disabled),[role=button]:not(:disabled){cursor:pointer}button:disabled{cursor:default}.start-screen,.play-screen{width:min(440px,100%);min-height:100dvh;margin:0 auto;padding:var(--safe-top) 16px var(--safe-bottom);display:flex;flex-direction:column;gap:14px}.start-top,.topbar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;min-height:48px}.brand{grid-column:2;display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center}.brand.compact{gap:2px;min-width:0}.brand.compact .kicker{display:none}.kicker{margin:0;letter-spacing:.2em;text-transform:uppercase;font-size:11px;font-weight:650;color:var(--accent)}h1{margin:0;font-family:var(--font-display);font-size:clamp(1.8rem,7vw,2.4rem);font-weight:500;letter-spacing:-.03em;line-height:1.05}.brand.compact h1{font-size:1.45rem}.ver-badge{display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:999px;border:1px solid color-mix(in srgb,var(--accent) 35%,var(--line));color:var(--accent);font-size:11px;font-weight:700;letter-spacing:.08em}.topbar .icon-btn{grid-column:3;justify-self:end}.games-back{grid-column:1;justify-self:start;min-height:44px;padding:10px 14px 10px 12px;border-radius:999px;border:1px solid var(--line);background:color-mix(in srgb,var(--surface) 82%,transparent);color:var(--text);font-size:13px;font-weight:650;letter-spacing:.01em;white-space:nowrap;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.start-tag{margin:0;text-align:center;color:var(--muted);line-height:1.45}.best-row,.hud{display:grid;grid-template-columns:1fr 1fr;gap:8px}.best-chip{background:color-mix(in srgb,var(--surface) 88%,transparent);border:1px solid var(--line);border-radius:var(--radius-lg);padding:10px 12px;text-align:center}.best-chip.is-hot{border-color:color-mix(in srgb,var(--accent) 55%,var(--line));box-shadow:0 0 0 1px color-mix(in srgb,var(--accent) 30%,transparent)}.stat-label{display:block;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:700}.stat-value{display:block;margin-top:2px;font-variant-numeric:tabular-nums;font-size:1.2rem;font-weight:700}.start-card{background:var(--paper);color:var(--ink);border-radius:var(--radius-xl);padding:22px 20px 18px;box-shadow:var(--shadow)}.eyebrow{margin:0;letter-spacing:.16em;text-transform:uppercase;font-size:11px;font-weight:700;color:#7a7368}.card-head{display:flex;align-items:center;justify-content:space-between;gap:8px}.ver-badge.ink{color:#141210;border-color:color-mix(in srgb,#141210 18%,transparent)}.start-version{margin:12px 0 0;text-align:center;font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:#7a7368}.start-card h2,.win-card h2{margin:6px 0 0;font-family:var(--font-display);font-size:1.45rem;font-weight:500;letter-spacing:-.03em;line-height:1.2}.howto-list{margin:16px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px}.howto-list li{display:grid;grid-template-columns:22px 1fr;gap:10px;color:color-mix(in srgb,var(--ink) 78%,transparent);font-size:.94rem;line-height:1.4}.howto-n{width:22px;height:22px;border-radius:999px;background:#141210;color:#f3eee4;display:grid;place-items:center;font-size:12px;font-weight:700}.modes{display:flex;gap:8px;margin-top:18px}.chip{height:40px;min-width:88px;padding:0 16px;border-radius:999px;border:1px solid color-mix(in srgb,var(--ink) 14%,transparent);background:transparent;color:#5c564e;font-weight:650;text-transform:capitalize}.chip-on{background:#141210;color:#f3eee4;border-color:transparent}.cta,.start-go{width:100%;min-height:48px;margin-top:16px;border:0;border-radius:var(--radius-md);background:#141210;color:#f3eee4;font-weight:700;font-size:1rem;display:inline-flex;align-items:center;justify-content:center;gap:8px}.cta.ghost{margin-top:8px;background:transparent;color:var(--text);border:1px solid var(--line)}.start-card .cta.ghost{color:var(--ink);border-color:color-mix(in srgb,var(--ink) 16%,transparent)}.cta.ghost.danger{color:var(--coral);border-color:color-mix(in srgb,var(--coral) 45%,transparent)}.icon-btn,.tool,.pad-btn,.chip,.cta,.cell,.games-back{touch-action:manipulation;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}.icon-btn{width:44px;height:44px;border-radius:var(--radius-md);border:1px solid var(--line);background:var(--surface);display:grid;place-items:center}.paper-wrap{background:var(--paper);border-radius:20px;padding:10px;box-shadow:var(--shadow)}.board{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:repeat(3,1fr);gap:8px;aspect-ratio:1;background:#141210;border-radius:16px;padding:8px}.box{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(2,1fr);gap:3px;background:#3d362e;border-radius:10px;padding:3px}.cell{min-width:0;min-height:44px;border:0;border-radius:8px;background:var(--cell);color:#1a3558;display:grid;place-items:center;padding:0;position:relative}.cell-given{background:var(--cell-given);color:var(--ink);font-weight:700}.cell-related{background:#efe6d4}.cell-same{background:#d8efe9}.cell-on{box-shadow:inset 0 0 0 2px #141210;background:#fff}.cell-error{background:#f6d6cc;color:#9a3412;box-shadow:inset 0 0 0 2px var(--coral)}.digit{font-size:clamp(1.15rem,5.6vw,1.55rem);font-weight:650;font-variant-numeric:tabular-nums}.notes{display:grid;grid-template-columns:repeat(3,1fr);width:86%;height:78%;place-items:center;font-size:10px;font-weight:700;color:#7a7368}.pad{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px}.pad-btn{min-height:52px;border-radius:var(--radius-md);border:1px solid var(--line);background:var(--surface);font-size:1.25rem;font-weight:700}.pad-on{background:var(--text);color:var(--bg);border-color:transparent}.toolbar{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.tool{min-height:44px;border-radius:var(--radius-md);border:1px solid var(--line);background:var(--surface);font-size:.78rem;font-weight:650;display:inline-flex;align-items:center;justify-content:center;gap:6px}.tool-on{background:var(--accent);color:#08332e;border-color:transparent}.tool:disabled,.pad-btn:disabled,.cta:disabled{opacity:.42}.win-screen,.leave-screen{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;background:color-mix(in srgb,var(--bg) 62%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);display:flex;align-items:center;justify-content:center;padding:max(24px,env(safe-area-inset-top,0px)) 16px max(24px,env(safe-area-inset-bottom,0px))}.leave-screen{z-index:50}.win-card,.leave-card{width:min(360px,100%);background:var(--paper);color:var(--ink);border-radius:var(--radius-xl);padding:26px 22px 20px;text-align:center;box-shadow:var(--shadow)}.win-card .kicker,.leave-card .kicker{color:#c45c26}.win-card h2,.leave-card h2{color:var(--ink)}.win-card .cta,.leave-card .cta{width:100%;margin-top:12px}.win-card .cta.ghost,.leave-card .cta.ghost{color:var(--ink);border-color:color-mix(in srgb,var(--ink) 16%,transparent)}.leave-card .cta.ghost.danger{color:#9a3412;border-color:color-mix(in srgb,var(--coral) 55%,transparent)}.leave-copy{margin:10px 0 6px;color:#7a7368;line-height:1.45;font-size:.95rem}.win-time{margin:10px 0 4px;font-size:clamp(3rem,14vw,4.4rem);font-weight:700;letter-spacing:-.05em;font-variant-numeric:tabular-nums}.win-sub{margin:0 0 10px;color:#7a7368}@media(min-width:720px){.start-screen,.play-screen{padding-top:max(20px,env(safe-area-inset-top,0px) + 16px)}.cell{min-height:52px}}@media(max-height:720px){.start-screen,.play-screen{gap:10px}.pad-btn{min-height:46px}.cell{min-height:40px}}@media(prefers-reduced-motion:reduce){.cell,.chip,.cta,.tool,.pad-btn,.games-back{transition:none}}