: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}}#root{border-inline:1px solid var(--border);box-sizing:border-box;flex-direction:column;width:1080px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}body{margin:0}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.2px;margin:0;font-size:40px}@media (width<=1024px){h1{font-size:30px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:20px;line-height:118%}p{margin:0}code{font-family:var(--mono);color:var(--text-h);background:var(--code-bg);border-radius:4px;padding:4px 8px;font-size:15px;line-height:135%;display:inline-flex}.board-grid{border:2px solid var(--border);border-radius:4px;flex-shrink:0;grid-template-rows:repeat(8,1fr);grid-template-columns:repeat(8,1fr);width:min(70vw,480px);height:min(70vw,480px);display:grid;overflow:hidden}.board-square{cursor:pointer;aspect-ratio:1;border:none;justify-content:center;align-items:center;padding:0;display:flex;position:relative}.board-square--light{background:var(--code-bg)}.board-square--dark{background:var(--accent-bg)}.board-square--selected{outline:3px solid var(--accent);outline-offset:-3px;z-index:1}.board-square--last-move{box-shadow:inset 0 0 0 3px #facc1599}.board-square--attacked:after{content:"";pointer-events:none;background:#ef44442e;position:absolute;inset:0;box-shadow:inset 0 0 0 3px #ef4444d9}.board-piece{-webkit-user-select:none;user-select:none;pointer-events:none;width:min(8vw,42px);height:min(8vw,42px)}.board-piece svg{width:100%;height:100%;display:block}.board-dot{background:var(--accent);opacity:.55;border-radius:50%;width:24%;height:24%;position:absolute}.board-ring{border:3px solid var(--accent);opacity:.7;border-radius:50%;position:absolute;inset:8%}.app{flex-direction:column;flex:1;min-height:0;display:flex}.app-header{border-bottom:1px solid var(--border);text-align:left;padding:24px 20px 16px}.app-header-row{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.app-header p{color:var(--text);margin-top:6px;font-size:15px}.user-badge{align-items:center;gap:8px;display:flex}.user-avatar{border-radius:50%;width:28px;height:28px}.user-name{color:var(--text-h);font-size:14px}.sign-out-button{border:1px solid var(--border);background:var(--bg);color:var(--text-h);cursor:pointer;border-radius:8px;padding:6px 12px;font-size:13px}.login-screen{flex:1;justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-card{text-align:center;border:1px solid var(--border);background:var(--code-bg);border-radius:12px;flex-direction:column;align-items:center;gap:16px;max-width:360px;padding:32px 28px;display:flex}.login-card p{color:var(--text);font-size:14px}.login-error{color:#dc2626}.app-body{flex-wrap:wrap;flex:1;min-height:0;display:flex}.opponent-label{color:var(--text);font-size:14px}.lobby{flex-direction:column;flex:1;align-items:center;gap:28px;padding:40px 20px;display:flex}.lobby-status{color:var(--text);font-size:15px}.lobby-section{flex-direction:column;gap:12px;width:100%;max-width:420px;display:flex}.lobby-section h2{color:var(--text-h);margin:0;font-size:15px}.lobby-game-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.lobby-game-list button{text-align:left;border:1px solid var(--border);background:var(--code-bg);width:100%;color:var(--text-h);cursor:pointer;border-radius:8px;padding:10px 14px;font-size:14px}.lobby-actions{flex-direction:column;gap:10px;display:flex}.lobby-actions>button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:10px 14px;font-size:14px}.lobby-actions .game-controls{justify-content:flex-start}.board-column{border-right:1px solid var(--border);flex-direction:column;flex:480px;align-items:center;gap:14px;padding:24px 20px;display:flex}.game-controls{justify-content:center;align-self:stretch;align-items:center;gap:12px;display:flex}.game-controls label{color:var(--text);align-items:center;gap:6px;font-size:14px;display:flex}.game-controls select{border:1px solid var(--border);background:var(--bg);color:var(--text-h);border-radius:6px;padding:6px 8px;font-size:14px}.game-controls button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:8px 14px;font-size:14px}.game-status{align-items:center;gap:10px;display:flex}.status-pill{background:var(--code-bg);color:var(--text-h);border:1px solid var(--border);border-radius:999px;padding:4px 12px;font-size:13px;font-weight:600}.status-pill--check{background:#facc1526;border-color:#facc1580}.status-pill--over,.status-pill--checkmate{background:var(--accent-bg);border-color:var(--accent-border);color:var(--accent)}.status-thinking{color:var(--text);font-size:13px;font-style:italic}.status-tactic{color:#dc2626;cursor:pointer;background:#ef44441f;border:1px solid #ef444473;border-radius:999px;padding:4px 12px;font-family:inherit;font-size:13px;font-weight:600}.status-tactic:hover:not(:disabled){background:#ef444433}.status-tactic:disabled{cursor:default;opacity:.75}.move-error{color:#dc2626;font-size:13px}.move-history{background:var(--code-bg);border:1px solid var(--border);width:100%;max-width:480px;font-family:var(--mono);white-space:pre-wrap;word-break:break-word;box-sizing:border-box;border-radius:8px;max-height:120px;margin:0;padding:10px 12px;font-size:13px;overflow-y:auto}.chat-column{flex-direction:column;flex:360px;min-height:400px;display:flex}.chat-log{flex-direction:column;flex:1;gap:12px;min-height:0;padding:20px;display:flex;overflow-y:auto}.chat-empty{color:var(--text);text-align:center;margin:auto;font-size:14px}.chat-bubble{text-align:left;box-sizing:border-box;border-radius:12px;max-width:90%;padding:10px 14px}.chat-bubble pre{font-family:var(--sans);white-space:pre-wrap;word-break:break-word;margin:0;font-size:14px;line-height:145%}.chat-bubble--user{background:var(--accent-bg);border:1px solid var(--accent-border);color:var(--text-h);align-self:flex-end}.chat-bubble--assistant{background:var(--code-bg);border:1px solid var(--border);align-self:flex-start}.chat-bubble--pending{color:var(--text);font-style:italic}.chat-bubble--error{color:#dc2626;background:#dc26261a;border:1px solid #dc262666;align-self:flex-start}.chat-input{border-top:1px solid var(--border);gap:8px;padding:16px 20px;display:flex}.chat-input input{border:1px solid var(--border);background:var(--bg);color:var(--text-h);font-size:15px;font-family:var(--sans);border-radius:8px;flex:1;padding:10px 12px}.chat-input input:focus{outline:2px solid var(--accent);outline-offset:1px}.chat-input button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:10px 18px;font-size:15px;transition:opacity .2s}.chat-input button:disabled{opacity:.5;cursor:not-allowed}