:root{--bg: #0e1116;--surface: #171c24;--surface-2: #212a35;--line: #2c3644;--fg: #e8edf4;--fg-dim: #8c98a9;--p1: #4cc9f0;--p2: #ffb703;--p3: #ef476f;--p4: #ffd166;--radius: 14px;--gap: 8px;--tap: 44px;color-scheme:dark}*{box-sizing:border-box}html{height:100%}body{margin:0;min-height:100%;background:var(--bg);color:var(--fg);font:16px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased;touch-action:manipulation;overscroll-behavior:none}button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent}#root{min-height:100%}.menu,.setup,.match{display:flex;flex-direction:column;gap:var(--gap);width:100%;max-width:460px;margin-inline:auto;min-height:100vh;min-height:100dvh;padding:max(12px,env(safe-area-inset-top)) 14px max(12px,env(safe-area-inset-bottom))}.menu-bar,.match-bar{display:flex;align-items:center;justify-content:space-between;gap:var(--gap);min-height:var(--tap)}.icon-btn{display:grid;place-items:center;min-width:var(--tap);min-height:var(--tap);border-radius:var(--radius);color:var(--fg-dim);font-size:20px;transition:transform .12s ease,color .12s ease,background-color .12s ease}.icon-btn:active{transform:scale(.92)}.icon-btn.is-on{color:var(--fg);background:var(--surface-2)}.icon-btn.is-ghost{pointer-events:none;opacity:0}.logo{margin:0;font-size:22px;font-weight:700;letter-spacing:-.02em}.logo span{color:var(--p1)}.tagline{margin:0 0 6px;color:var(--fg-dim);font-size:14px}.btn{min-height:var(--tap);padding:0 18px;border-radius:var(--radius);background:var(--surface-2);color:var(--fg);font-weight:600;transition:transform .12s ease,opacity .12s ease}.btn:active:not(:disabled){transform:scale(.96)}.btn:disabled{opacity:.35;cursor:default}.btn-primary{background:var(--p1);color:#06202b}.btn-wide{width:100%;margin-top:auto}.game-list{display:flex;flex-direction:column;gap:var(--gap);margin:0;padding:0;list-style:none}.game-card,.resume{display:flex;align-items:center;gap:14px;width:100%;padding:16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);text-align:left;transition:transform .12s ease,border-color .12s ease}.game-card:active,.resume:active{transform:scale(.985);border-color:var(--p1)}.game-icon{display:grid;place-items:center;width:46px;height:46px;flex:none;border-radius:12px;background:var(--surface-2);font-size:22px;color:var(--p1)}.game-text{display:flex;flex-direction:column;gap:3px;min-width:0}.game-name{font-weight:650}.game-tagline{color:var(--fg-dim);font-size:13px}.resume{flex-direction:column;align-items:flex-start;gap:2px;border-color:var(--p1)}.resume-label{color:var(--p1);font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}.resume-game{font-weight:600}.setup-title{margin:0;font-size:17px}.field{margin:0;padding:0;border:none}.field legend{padding:0 0 8px;color:var(--fg-dim);font-size:13px}.seg{display:flex;gap:4px;padding:4px;border-radius:var(--radius);background:var(--surface)}.seg button{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-height:40px;border-radius:10px;color:var(--fg-dim);font-weight:600;font-size:14px;transition:background-color .12s ease,color .12s ease}.seg button.is-on{background:var(--surface-2);color:var(--fg)}.names{display:flex;gap:var(--gap)}.names input{flex:1;min-width:0;min-height:var(--tap);padding:0 12px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);color:var(--fg);font:inherit}.names input:focus-visible{outline:2px solid var(--p1);outline-offset:1px}.match{justify-content:space-between}.match-title{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--fg-dim);font-size:13px}.match-board{display:grid;place-items:center}.badge{display:flex;align-items:center;gap:10px;padding:10px 14px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);transition:border-color .15s ease,transform .15s ease}.badge.is-active{border-color:var(--accent);transform:scale(1.015)}.badge.is-flipped{transform:rotate(180deg)}.badge.is-flipped.is-active{transform:rotate(180deg) scale(1.015)}.badge-mark{display:grid;place-items:center;width:30px;height:30px;flex:none;border-radius:9px;background:var(--surface-2);color:var(--accent);font-weight:800}.badge-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}.badge-score{font-variant-numeric:tabular-nums;font-weight:700;color:var(--accent)}.badge-thinking{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse .9s ease-in-out infinite}.match-actions{display:flex;gap:var(--gap)}.match-actions .btn{flex:1}.review-note{margin:0;color:var(--fg-dim);font-size:12px;text-align:center}.loading{width:100%;aspect-ratio:1;border-radius:var(--radius);background:var(--surface)}.game-surface{display:flex;flex-direction:column;gap:10px;width:100%}.board3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);width:100%;aspect-ratio:1}.cell{display:grid;place-items:center;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);font-size:clamp(34px,13vw,58px);font-weight:800;line-height:1;transition:transform .12s ease,background-color .15s ease,border-color .15s ease}.cell.p0{color:var(--mark0)}.cell.p1{color:var(--mark1)}.cell.is-playable:active{transform:scale(.95);background:var(--surface-2)}.cell.is-win{border-color:currentColor;background:color-mix(in srgb,currentColor 14%,var(--surface))}.cell:disabled{cursor:default}.cell .mark{animation:pop .18s cubic-bezier(.34,1.56,.64,1)}.cell.is-doomed .mark{opacity:.3;animation:fade-pulse 1.6s ease-in-out infinite}.cell.is-doomed{border-style:dashed}.hint{margin:0;min-height:18px;color:var(--fg-dim);font-size:13px;text-align:center}.c4{display:flex;gap:6px;width:100%;padding:8px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);--slot-gap: 6px}.c4-col{display:flex;flex:1;flex-direction:column;gap:var(--slot-gap);min-width:0;padding:0;border-radius:10px;transition:background-color .12s ease}.c4-col.is-playable:active{background:var(--surface-2)}@media (hover: hover){.c4-col.is-playable:hover{background:var(--surface-2)}}.c4-slot{position:relative;display:block;width:100%;aspect-ratio:1;border-radius:50%;background:var(--bg)}.c4-disc{position:absolute;inset:0;border-radius:50%;animation:pop .16s ease-out}.c4-disc.p0{background:var(--mark0)}.c4-disc.p1{background:var(--mark1);box-shadow:inset 0 0 0 5px color-mix(in srgb,var(--bg) 55%,transparent)}.c4-disc.is-win{box-shadow:inset 0 0 0 3px var(--fg),0 0 12px color-mix(in srgb,currentColor 40%,transparent)}.c4-disc.is-dropping{animation:drop .34s cubic-bezier(.36,0,.66,1.12)}.c4-ghost{position:absolute;inset:14%;border-radius:50%;border:2px dashed var(--fg-dim);opacity:0;transition:opacity .12s ease}@media (hover: hover){.c4-col.is-playable:hover .c4-ghost{opacity:.5}}.banner{position:fixed;inset:0;display:grid;place-items:center;padding:20px;background:color-mix(in srgb,var(--bg) 72%,transparent);backdrop-filter:blur(6px);animation:fade .18s ease-out}.banner-card{display:flex;flex-direction:column;gap:18px;width:100%;max-width:320px;padding:24px;border:1px solid var(--accent);border-radius:20px;background:var(--surface);text-align:center;animation:pop .22s cubic-bezier(.34,1.56,.64,1)}.banner-title{margin:0;font-size:24px;font-weight:800;color:var(--accent)}.banner-actions{display:flex;gap:var(--gap)}.banner-actions .btn{flex:1}@keyframes pop{0%{transform:scale(.6);opacity:0}}@keyframes drop{0%{transform:translateY(calc(var(--fall) * -1 * (100% + var(--slot-gap))))}}@keyframes fade{0%{opacity:0}}@keyframes pulse{50%{opacity:.25}}@keyframes fade-pulse{50%{opacity:.12}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.cell.is-doomed .mark{opacity:.3}}:focus-visible{outline:2px solid var(--p1);outline-offset:2px}