*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0f0f13;--surface: #1a1a22;--border: #2e2e3a;--text: #c9c9d8;--text-dim: #6b6b82;--accent: #7c6af7;--accent2: #4cc9a0;--danger: #e05252;--white-piece: #f0ede4;--sans: system-ui, "Segoe UI", sans-serif;font-family:var(--sans);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}body,#root{min-height:100vh}button{cursor:pointer;font-family:inherit}input{font-family:inherit}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:10px;font-size:15px;font-weight:600;padding:12px 24px;transition:opacity .15s,transform .1s}.btn:disabled{opacity:.45;cursor:not-allowed}.btn:not(:disabled):hover{opacity:.88}.btn:not(:disabled):active{transform:scale(.97)}.btn-primary{background:var(--accent);color:#fff}.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}.input{background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:15px;padding:10px 14px;outline:none;transition:border-color .15s;width:100%}.input::placeholder{color:var(--text-dim)}.input:focus{border-color:var(--accent)}.home-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.home-card{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:48px 40px;width:100%;max-width:420px;display:flex;flex-direction:column;align-items:center;gap:16px;box-shadow:0 8px 40px #0006}.home-logo{font-size:56px;line-height:1}.home-title{font-size:32px;font-weight:700;color:#fff;letter-spacing:-.5px}.home-sub{font-size:14px;color:var(--text-dim);text-align:center;margin-bottom:8px}.divider{display:flex;align-items:center;width:100%;color:var(--text-dim);font-size:13px;gap:10px}.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--border)}.join-form{display:flex;gap:8px;width:100%}.join-form .input{flex:1;text-transform:uppercase;letter-spacing:2px}.error-msg{color:var(--danger);font-size:13px}.loading-screen{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--text-dim)}.spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.game-page{display:flex;flex-direction:column;min-height:100vh;padding:0 0 32px}.game-header{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--border);background:var(--surface);flex-wrap:wrap;gap:10px}.btn-back{background:none;border:none;color:var(--text-dim);font-size:14px;padding:4px 0;transition:color .15s}.btn-back:hover{color:var(--text)}.room-info{display:flex;align-items:center;gap:10px}.room-code{font-size:14px;color:var(--text-dim)}.room-code 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0;min-height:28px}.your-turn{color:var(--accent2)}.their-turn{color:var(--text-dim)}.waiting-label{color:#6b9cf4}.check-label{color:#f05050;animation:pulse-check .6s ease-in-out infinite alternate}@keyframes pulse-check{0%{opacity:1}to{opacity:.5}}.game-over-overlay{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:8px;background:#000000a6;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:20}.game-over-card{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;padding:32px 40px;background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:0 8px 32px #00000080}.game-over-icon{font-size:52px;line-height:1}.game-over-title{font-size:28px;font-weight:700;color:#fff;letter-spacing:-.5px}.game-over-sub{font-size:13px;color:var(--text-dim);margin-bottom:4px}.captured-row{display:flex;flex-wrap:wrap;gap:2px;min-height:22px;padding:2px 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36px;width:100%;max-width:380px;display:flex;flex-direction:column;align-items:center;gap:14px;box-shadow:0 8px 40px #0006;text-align:center}.gate-room-code{color:var(--accent);letter-spacing:2px;font-size:18px}.gate-form{display:flex;flex-direction:column;gap:10px;width:100%}.chat-panel{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:10px;min-height:220px;max-height:340px}.chat-title{font-size:13px;font-weight:600;color:var(--text-dim);text-transform:uppercase;letter-spacing:.6px}.chat-messages{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:6px;min-height:0}.chat-empty{font-size:13px;color:var(--text-dim)}.role-dot{display:inline-block;border-radius:50%;flex-shrink:0;align-self:center}.my-role-badge{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-dim)}.chat-msg{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px;font-size:13px;line-height:1.4}.chat-name{font-weight:600;font-size:12px;flex-shrink:0}.chat-name:after{content:":"}.chat-text{color:var(--text);word-break:break-word;flex:1}.chat-ts{color:var(--text-dim);font-size:10px;flex-shrink:0;align-self:flex-end}.chat-form{display:flex;gap:6px}.chat-input{flex:1;font-size:13px;padding:7px 10px}.chat-send{padding:7px 12px;font-size:16px;border-radius:8px;flex-shrink:0}.analysis-wrap{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:10px;width:min(560px,100%)}.analysis-header{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:600;color:var(--text-dim);text-transform:uppercase;letter-spacing:.6px}.analysis-hint{font-size:11px;font-weight:400;letter-spacing:0;text-transform:none;flex:1}.analysis-board-row{display:flex;gap:8px;align-items:stretch}.eval-bar{width:16px;flex-shrink:0;border-radius:4px;overflow:hidden;display:flex;flex-direction:column}.eval-bar-black{background:#3a3a4a;transition:height .4s ease}.eval-bar-white{background:#e0ddd8;transition:height .4s ease}.analysis-board{flex:1;min-width:0}.analysis-score{text-align:center;font-size:18px;font-weight:700;color:#fff;letter-spacing:-.5px}.analysis-nav{display:flex;gap:8px;align-items:center;justify-content:center}.analysis-nav-btn{background:var(--bg);border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:14px;padding:6px 12px;transition:border-color .15s,color .15s}.analysis-nav-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.analysis-nav-btn:disabled{opacity:.35;cursor:not-allowed}.analysis-move-num{font-size:13px;color:var(--text-dim);min-width:56px;text-align:center}.analysis-bestmove{font-size:13px;color:var(--text-dim);text-align:center;min-height:20px}.analysis-bestmove strong{color:var(--accent2);font-family:monospace;font-size:14px}@media (max-width: 700px){.game-layout{gap:16px;padding:12px}.sidebar{width:100%;flex-direction:row;flex-wrap:wrap}.move-history{max-height:160px;min-height:unset;flex:1 1 200px}.chat-panel{max-height:200px;min-height:unset;flex:1 1 200px}.rematch-btn{flex:1 1 140px}.home-card{padding:32px 20px}.game-header{padding:10px 12px}}