: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: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}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--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 -2px}#social .button-icon{filter:invert()brightness(2)}}body{margin:0}#root{text-align:center;border-inline:1px solid var(--border);box-sizing:border-box;flex-direction:column;width:1126px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}:root{color:#f8fbff;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:radial-gradient(circle at 20% 12%,#7d5cff52,#0000 30%),radial-gradient(circle at 85% 8%,#35d6bc38,#0000 26%),linear-gradient(135deg,#080a12 0%,#111827 48%,#071014 100%);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button{font:inherit}#root{min-height:100vh}.app-shell{width:min(1220px,100% - 32px);margin:0 auto;padding:36px 0 56px}.hero-card,.panel{-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#0d121fc7;border:1px solid #ffffff1a;border-radius:28px;box-shadow:0 22px 70px #00000057}.hero-card{justify-content:space-between;align-items:end;gap:28px;margin-bottom:22px;padding:clamp(24px,4vw,42px);display:flex;position:relative;overflow:hidden}.hero-card:after{content:"♞";color:#ffffff0f;font-size:clamp(7rem,16vw,14rem);line-height:1;position:absolute;top:50%;right:clamp(18px,6vw,82px);transform:translateY(-50%)rotate(-10deg)}.hero-copy{z-index:1;max-width:780px;position:relative}.eyebrow,.panel-label{letter-spacing:.12em;text-transform:uppercase;color:#8df4de;margin:0 0 8px;font-size:.76rem;font-weight:800}h1,h2,p{margin-top:0}h1{letter-spacing:-.06em;margin-bottom:16px;font-size:clamp(2.35rem,5vw,5.1rem);line-height:.96}h2{letter-spacing:-.03em;margin-bottom:0}.lead{color:#c8d4e7;max-width:700px;margin-bottom:0;font-size:clamp(1rem,2vw,1.15rem);line-height:1.72}.game-layout{grid-template-columns:minmax(0,1fr) 360px;align-items:start;gap:22px;display:grid}.board-wrap{min-width:0}.board-frame{background:linear-gradient(145deg,#ffffff24,#ffffff0a),#0b101cdb;border:1px solid #ffffff1f;border-radius:28px;padding:clamp(10px,2vw,18px);box-shadow:inset 0 1px #ffffff14,0 24px 70px #00000061}.board-with-ranks{grid-template-columns:24px minmax(0,1fr) 24px;align-items:stretch;gap:8px;display:grid}.file-labels{color:#7f8ca5;text-align:center;text-transform:uppercase;grid-template-columns:repeat(8,1fr);padding:8px 32px 0;font-size:.8rem;font-weight:700;display:grid}.file-labels.top{padding:0 32px 8px}.rank-labels{color:#7f8ca5;text-align:center;grid-template-rows:repeat(8,1fr);align-items:center;font-size:.8rem;font-weight:800;display:grid}.chess-board{aspect-ratio:1;border:1px solid #ffffff24;border-radius:18px;grid-template-rows:repeat(8,1fr);grid-template-columns:repeat(8,1fr);display:grid;overflow:hidden}.square{min-width:0;min-height:0;color:inherit;cursor:pointer;border:0;place-items:center;margin:0;padding:0;transition:transform .14s,filter .14s,box-shadow .14s;display:grid;position:relative}.square.light{background:linear-gradient(145deg,#e9d8b5,#cfae7a)}.square.dark{background:linear-gradient(145deg,#5c6e54,#2f4735)}.square:hover{filter:brightness(1.08)}.square.selected{z-index:2;box-shadow:inset 0 0 0 4px #55f0d5,0 0 24px #55f0d58c}.square.legal:after{content:"";aspect-ratio:1;background:#0a101961;border-radius:50%;width:28%;position:absolute;box-shadow:0 0 0 7px #ffffff29}.square.legal:has(.piece):after{width:78%;box-shadow:none;background:0 0;border:4px solid #ff4a70c2}.piece{z-index:1;text-shadow:0 5px 12px #0000005c;-webkit-user-select:none;user-select:none;font-size:clamp(2rem,7vw,4.5rem);line-height:1;position:relative}.piece.white{color:#fff8ec;filter:drop-shadow(0 0 3px #0006)}.piece.black{color:#10131b;filter:drop-shadow(0 1px #ffffff38)}.game-panel{padding:24px;position:sticky;top:18px}.status-card{background:#ffffff0f;border-radius:20px;align-items:center;gap:14px;padding:18px;display:flex}.turn-dot{border-radius:999px;flex:none;width:18px;height:18px;box-shadow:0 0 0 8px #ffffff0d}.turn-dot.white{background:#f8f0df}.turn-dot.black{background:#1a1f2b;border:1px solid #ffffff4d}.message{color:#d8e3f4;min-height:52px;margin:18px 0;line-height:1.55}.stats-grid{grid-template-columns:1fr;gap:10px;margin-bottom:18px;display:grid}.stats-grid div{background:#ffffff0b;border-radius:16px;gap:5px;padding:14px;display:grid}.stats-grid span,.empty-history,.move-list em{color:#8f9db5}.stats-grid strong{color:#fff;font-size:.94rem}.reset-button{color:#061015;cursor:pointer;background:linear-gradient(135deg,#8df4de,#a9b4ff);border:0;border-radius:999px;width:100%;padding:14px 18px;font-weight:900;box-shadow:0 14px 28px #59ecd62e}.reset-button:hover{transform:translateY(-1px)}.move-list{margin-top:24px}.move-list ol{color:#dce7f8;gap:7px;max-height:260px;margin:0;padding:0 0 0 22px;display:grid;overflow:auto}.move-list li::marker{color:#5eead4}.move-list span{color:#8df4de;font-weight:800}@media (width<=980px){.game-layout{grid-template-columns:1fr}.game-panel{position:static}}@media (width<=620px){.app-shell{width:min(100% - 20px,1220px);padding:18px 0 36px}.hero-card,.panel{border-radius:20px}.board-frame{border-radius:20px;padding:8px}.board-with-ranks{grid-template-columns:16px minmax(0,1fr) 16px;gap:4px}.file-labels{padding-left:20px;padding-right:20px}.piece{font-size:clamp(1.5rem,10vw,3rem)}}