:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:clamp(14px, 2.5vw, 18px)/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px 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var(--border);background:var(--bg);color:var(--text);cursor:pointer;border-radius:6px;padding:6px 10px;font-family:inherit;font-size:12px}.bot-settings{background:var(--code-bg);border-radius:8px;justify-content:center;align-items:center;gap:8px;margin-bottom:8px;padding:8px;display:flex}.bot-settings select{border:1px solid var(--border);background:var(--bg);color:var(--text);cursor:pointer;border-radius:6px;padding:6px 10px;font-family:inherit;font-size:12px}.stats{justify-content:center;gap:12px;margin-bottom:8px;display:flex}.stat{background:var(--code-bg);border-radius:20px;padding:4px 12px;font-size:12px}.current-player{background:var(--code-bg);border-radius:20px;align-items:center;gap:6px;padding:4px 12px;font-size:12px;display:inline-flex}.player-indicator{font-size:14px;font-weight:700}.player-indicator.x{color:#ff6b6b}.player-indicator.o{color:#4ecdc4}.thinking-text{color:var(--accent);font-style:italic;animation:1s infinite blink}@keyframes 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var(--border);background:var(--bg);width:clamp(32px,12vw,60px);height:clamp(32px,12vw,60px);color:var(--text-h);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;padding:0;font-size:clamp(20px,6vw,48px);font-weight:700;transition:all .2s;display:flex;position:relative;overflow:visible}.square .piece{animation:.35s cubic-bezier(.175,.885,.32,1.275) forwards place-piece;display:inline-block}.square .piece.x{color:#ff6b6b;text-shadow:0 0 20px #ff6b6b99}.square .piece.o{color:#4ecdc4;text-shadow:0 0 20px #4ecdc499}@keyframes 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ease-in-out screen-shake}.celebration-overlay.negative .confetti{animation:2.5s ease-out forwards confetti-fall-negative}@keyframes screen-shake{0%,to{transform:translate(0)}10%,30%,50%,70%,90%{transform:translate(-5px)}20%,40%,60%,80%{transform:translate(5px)}}@keyframes confetti-fall-negative{0%{opacity:1;transform:translateY(100vh)rotate(0)}to{opacity:0;transform:translateY(-20vh)rotate(-720deg)}}.confetti{border-radius:2px;width:12px;height:12px;animation:3s ease-out forwards confetti-fall;position:absolute}@keyframes confetti-fall{0%{opacity:1;transform:translateY(0)rotate(0)}to{opacity:0;transform:translateY(100vh)rotate(720deg)}}.firework{border-radius:50%;width:6px;height:6px;animation:1s ease-out forwards firework-burst;position:absolute}@keyframes firework-burst{0%{opacity:1;transform:translate(0)scale(1);box-shadow:0 0 10px}to{transform:translate(var(--tx), var(--ty)) scale(0);opacity:0}}.glow-x{animation:.6s ease-in-out infinite alternate glow-pulse-x}.glow-o{animation:.6s ease-in-out infinite alternate glow-pulse-o}@keyframes glow-pulse-x{0%{box-shadow:0 0 10px #ff6b6b66}to{box-shadow:0 0 30px #ff6b6bcc,0 0 60px #ff6b6b66}}@keyframes glow-pulse-o{0%{box-shadow:0 0 10px #4ecdc466}to{box-shadow:0 0 30px #4ecdc4cc,0 0 60px #4ecdc466}}@media (width>=1024px){h1{font-size:clamp(24px,3vw,36px)}.game-container{margin:12px auto}.game-area{flex-wrap:nowrap;gap:24px}.board{grid-template-columns:repeat(var(--board-size), 54px);gap:6px}.col-labels{gap:6px;padding-left:60px}.col-label{width:54px;font-size:16px}.row-labels{gap:6px;margin-right:3px}.row-label{width:54px;height:54px;font-size:16px}.square{border-radius:10px;width:54px;height:54px;font-size:36px}.move-history{min-width:160px;max-width:160px;max-height:380px}.move-list{max-height:300px}}