:root{--void:#060a12;--deep:#0b1220;--surface:#121c2e;--overlay:#18243a;--earth:#c9954a;--earth-deep:#8a5f2e;--sky:#5fd0ff;--sky-deep:#3a7bd5;--beam:#4fc3f7;--capture:#ff7043;--ok:#3ddc97;--warn:#ffb347;--danger:#ff5a5f;--warm:#efe6d2;--cool:#93a3c0;--edge:color-mix(in oklab, var(--sky) 22%, transparent)}.auth-gate[hidden]{display:none}.auth-gate{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;display:grid;place-items:center;padding:24px;color:var(--warm);font:15px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:radial-gradient(120% 80% at 50% -10%,color-mix(in oklab,var(--sky-deep) 30%,transparent) 0%,transparent 60%),radial-gradient(90% 60% at 50% 115%,color-mix(in oklab,var(--earth-deep) 34%,transparent) 0%,transparent 62%),linear-gradient(178deg,var(--deep) 0%,var(--void) 58%,#0a0805 100%);overflow:auto}.auth-bg{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;overflow:hidden}.auth-aurora{position:absolute;top:-30%;right:-30%;bottom:-30%;left:-30%;background:radial-gradient(38% 26% at 22% 28%,color-mix(in oklab,var(--sky) 20%,transparent),transparent 70%),radial-gradient(34% 22% at 78% 66%,color-mix(in oklab,var(--earth) 16%,transparent),transparent 70%);filter:blur(34px);animation:authDrift 26s ease-in-out infinite alternate}.auth-grain{position:absolute;top:0;right:0;bottom:0;left:0;opacity:.05;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E")}@keyframes authDrift{0%{transform:translate3d(-2%,-1%,0) scale(1)}to{transform:translate3d(3%,2%,0) scale(1.08)}}.auth-card{position:relative;width:min(460px,100%);max-height:calc(100dvh - 48px);overflow:auto;padding:28px;background:linear-gradient(168deg,color-mix(in oklab,var(--overlay) 94%,transparent),color-mix(in oklab,var(--surface) 96%,transparent));border:1px solid var(--edge);border-radius:18px;box-shadow:0 28px 70px #0000009e,inset 0 1px color-mix(in oklab,var(--sky) 14%,transparent);scrollbar-width:thin;scrollbar-color:var(--sky-deep) transparent}.auth-card::-webkit-scrollbar{width:9px}.auth-card::-webkit-scrollbar-track{background:color-mix(in oklab,var(--void) 70%,transparent);border-radius:9px}.auth-card::-webkit-scrollbar-thumb{background:linear-gradient(var(--sky-deep),var(--earth-deep));border-radius:9px;border:2px solid var(--surface)}.auth-card::-webkit-scrollbar-thumb:hover{background:linear-gradient(var(--sky),var(--earth))}.auth-head{display:flex;gap:16px;align-items:center;margin-bottom:22px;text-align:left}.auth-emblem{position:relative;width:56px;height:60px;flex:0 0 56px}.auth-plane{position:absolute;left:0;width:56px;height:20px;border-radius:4px;transform:skew(-24deg)}.auth-plane--sky{top:0;background:linear-gradient(120deg,color-mix(in oklab,var(--sky) 62%,transparent),color-mix(in oklab,var(--sky-deep) 46%,transparent));border:1px solid color-mix(in oklab,var(--sky) 55%,transparent);box-shadow:0 0 16px color-mix(in oklab,var(--sky) 34%,transparent)}.auth-plane--earth{bottom:0;background:linear-gradient(120deg,var(--earth),var(--earth-deep));border:1px solid color-mix(in oklab,var(--earth) 60%,transparent)}.auth-beam{position:absolute;left:26px;top:16px;width:5px;height:28px;background:linear-gradient(var(--sky),var(--earth));filter:blur(1.2px);opacity:.85;animation:authPulse 2.8s ease-in-out infinite}@keyframes authPulse{0%,to{opacity:.45}50%{opacity:1}}.auth-title{margin:0;font-size:1.22rem;font-weight:650;letter-spacing:.2px;background:linear-gradient(96deg,var(--warm),var(--sky) 62%,var(--earth));-webkit-background-clip:text;background-clip:text;color:transparent}.auth-sub{margin:3px 0 0;font-size:.86rem;color:var(--cool);opacity:1}.auth-actions{display:flex;flex-direction:column;gap:10px}.auth-btn{width:100%;padding:12px 16px;border-radius:11px;font:inherit;font-size:.95rem;font-weight:700;cursor:pointer;border:1px solid transparent;transition:transform .14s,filter .18s,background .18s,color .18s}.auth-btn:focus-visible{outline:2px solid var(--warm);outline-offset:2px}.auth-btn:disabled{opacity:.55;cursor:progress}.auth-btn-primary{color:#07131e;background:linear-gradient(112deg,var(--sky) 0%,color-mix(in oklab,var(--sky) 55%,var(--earth)) 100%);box-shadow:0 8px 22px color-mix(in oklab,var(--sky-deep) 34%,transparent)}.auth-btn-primary:hover:not(:disabled){filter:brightness(1.09)}.auth-btn-primary:active:not(:disabled){transform:translateY(1px)}.auth-btn-secondary{background:transparent;color:var(--earth);border:1px solid color-mix(in oklab,var(--earth) 46%,transparent)}.auth-btn-secondary:hover:not(:disabled){background:color-mix(in oklab,var(--earth) 12%,transparent);color:var(--warm)}.auth-status{margin:0 0 14px;padding:10px 12px;border-radius:10px;font-size:.87rem;border:1px solid transparent}.auth-status[hidden]{display:none}.auth-status.is-error{color:#ffd9da;background:color-mix(in oklab,var(--danger) 16%,transparent);border-color:color-mix(in oklab,var(--danger) 46%,transparent)}.auth-status.is-notice{color:#d6f6ff;background:color-mix(in oklab,var(--sky) 14%,transparent);border-color:color-mix(in oklab,var(--sky) 40%,transparent)}.auth-status.is-busy{color:var(--warm);background:color-mix(in oklab,var(--warn) 12%,transparent);border-color:color-mix(in oklab,var(--warn) 38%,transparent)}.user-chip[hidden]{display:none}.user-chip{position:fixed;top:12px;left:12px;z-index:1200;display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:999px;font:13px/1 system-ui,sans-serif;color:var(--warm);background:color-mix(in oklab,var(--surface) 90%,transparent);border:1px solid var(--edge);-webkit-backdrop-filter:blur(9px);backdrop-filter:blur(9px);box-shadow:0 6px 20px #0000006b}.user-chip-dot{width:8px;height:8px;border-radius:50%;flex:0 0 8px}.user-chip-dot[data-mode=cloud]{background:var(--ok);box-shadow:0 0 8px var(--ok)}.user-chip-dot[data-mode=local]{background:var(--warn);box-shadow:0 0 8px var(--warn)}.user-chip-mail{max-width:190px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-chip-mode{font-size:.7rem;color:var(--cool);text-transform:uppercase;letter-spacing:.4px}.user-chip-out{padding:5px 10px;border:1px solid color-mix(in oklab,var(--capture) 46%,transparent);border-radius:999px;background:transparent;color:var(--capture);font:inherit;font-size:.78rem;cursor:pointer}.user-chip-out:hover{background:color-mix(in oklab,var(--capture) 16%,transparent);color:var(--warm)}@media(max-width:520px){.auth-gate{padding:14px}.auth-card{padding:20px;border-radius:15px}.auth-head{gap:12px}.auth-emblem{width:44px;flex-basis:44px;height:52px}.auth-plane{width:44px}.auth-beam{left:20px}.user-chip{top:8px;left:8px;padding:6px 8px;font-size:12px}.user-chip-mail{max-width:110px}.user-chip-mode{display:none}}@media(prefers-reduced-motion:reduce){.auth-aurora,.auth-beam{animation:none}*{transition-duration:.01ms!important}}:root{--bg: #0d1424;--panel: rgba(22, 28, 40, .82);--panel-border: rgba(255, 255, 255, .09);--text: #e8edf5;--muted: #93a1b5;--accent: #4fc3f7;--accent-fade: rgba(79, 195, 247, .24);--warn: #ff7043;--white-piece: #f2e9d8;--modal-bg: linear-gradient(160deg, #1a2233, #121826);--v2d-back: rgba(8, 11, 17, .72);--row-odd: rgba(255,255,255,.045);--seg-active-bg: linear-gradient(135deg, rgba(79,195,247,.25), rgba(126,87,194,.3));--sq-light: #d8c49c;--sq-dark: #77533a;--sky-light: #bcd9ff;--sky-dark: #6f9fd8}*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden}body{font-family:Segoe UI,system-ui,-apple-system,Helvetica Neue,Arial,sans-serif;background:radial-gradient(1300px 800px at 30% 18%,#1d2b45 0%,var(--bg) 62%);color:var(--text);-webkit-user-select:none;user-select:none}#app{position:fixed;top:0;right:0;bottom:0;left:0}#scene{position:absolute;top:0;right:0;bottom:0;left:0}#scene canvas{display:block}.hidden{display:none!important}#topbar{position:absolute;top:0;left:0;right:0;display:flex;align-items:center;gap:14px;padding:10px 16px;background:linear-gradient(180deg,#0a0e168c,#0a0e1600);z-index:10}#logo{display:flex;align-items:center;gap:8px;font-size:17px;letter-spacing:.4px}.logo-icon{font-size:24px;filter:drop-shadow(0 2px 4px rgba(0,0,0,.6))}.logo-text b{color:var(--accent)}#status-chip{margin-left:4px;background:var(--panel);border:1px solid var(--panel-border);padding:7px 16px;border-radius:999px;font-size:14px;font-weight:600;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);min-width:130px;text-align:center}#status-chip.check{border-color:var(--warn);color:var(--warn)}#topbar-actions{margin-left:auto;display:flex;gap:8px}.btn{background:var(--panel);color:var(--text);border:1px solid var(--panel-border);border-radius:9px;padding:8px 13px;font-size:13.5px;cursor:pointer;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:all .15s;font-family:inherit}.btn:hover{border-color:var(--accent);transform:translateY(-1px)}.btn:disabled{opacity:.4;cursor:default;transform:none}.btn.active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent-fade)}.btn.primary{background:linear-gradient(135deg,#2f6fb3,#7e57c2);border-color:transparent;font-weight:600}.btn.icon{padding:8px 11px}.btn.big{font-size:16px;padding:12px 26px}#side-panel{position:absolute;top:58px;right:12px;bottom:12px;width:248px;display:flex;flex-direction:column;gap:10px;z-index:9}.panel-card{background:var(--panel);border:1px solid var(--panel-border);border-radius:12px;padding:10px 12px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);flex-shrink:0}.panel-card.grow{flex:1;display:flex;flex-direction:column;min-height:90px}.card-label{font-size:11px;text-transform:uppercase;letter-spacing:1.2px;color:var(--muted);margin-bottom:6px}#turn-text{font-size:17px;font-weight:700}#check-warning{color:var(--warn);font-weight:700;font-size:13.5px;margin-top:3px;animation:pulse 1s infinite}@keyframes pulse{50%{opacity:.45}}#ai-info{font-size:12.5px;color:var(--muted);line-height:1.55}#ai-info b{color:var(--text)}#coach-card 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34px;max-width:520px;width:100%;max-height:100%;overflow-y:auto;overscroll-behavior:contain;margin:auto;box-shadow:0 24px 80px #0009;text-align:center}.modal.wide{max-width:680px;text-align:left}.modal.small{max-width:430px}.confirm-actions{display:flex;gap:10px;justify-content:center;margin-top:20px}.btn.danger{background:linear-gradient(135deg,#a83a2c,#c25a3a);border-color:transparent;font-weight:600;color:#fff}#modal-confirm{z-index:45}.modal h1{font-size:26px;margin-bottom:4px}.modal h2{font-size:22px;margin-bottom:10px}.subtitle{color:var(--muted);font-size:13.5px;margin-bottom:20px}.menu-group{margin:14px 0;text-align:left}.menu-label{font-size:11.5px;text-transform:uppercase;letter-spacing:1.2px;color:var(--muted);margin-bottom:7px}.seg{display:flex;gap:6px;flex-wrap:wrap}.seg button{flex:1;min-width:76px;padding:9px 8px;border-radius:9px;background:var(--row-odd);color:var(--muted);border:1px solid var(--panel-border);cursor:pointer;font-size:13px;transition:all .15s;font-family:inherit;white-space:nowrap}.seg button:hover{color:var(--text)}.seg button.active{background:var(--seg-active-bg);color:var(--text);border-color:var(--accent);font-weight:600}#diff-desc{font-size:12px;color:var(--muted);margin-top:7px;min-height:15px}.menu-actions{display:flex;gap:10px;justify-content:center;margin-top:22px;flex-wrap:wrap}.rules-body{font-size:13.6px;line-height:1.65;color:var(--muted)}.rules-body p{margin-bottom:11px}.rules-body b{color:var(--text)}#over-title{font-size:26px}#over-text{color:var(--muted);font-size:15px;margin-top:4px}@media(max-width:1100px){#btn-theme{display:none}}@media(max-width:900px){#side-panel{width:200px}#status-chip,.logo-text{display:none}}#player-bar,#end-bar{flex-wrap:wrap;justify-content:center;width:max-content;max-width:calc(100vw - 24px);position:fixed;bottom:14px;left:50%;transform:translate(-50%);display:flex;gap:6px;align-items:center;z-index:40;background:var(--panel);border:1px solid var(--panel-border);border-radius:14px;padding:8px 12px;box-shadow:0 8px 30px #00000059;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}#player-bar.hidden,#end-bar.hidden{display:none}#eb-title{font-weight:600;font-size:13px;padding:0 6px}.pb-btn{border:1px solid var(--panel-border);background:transparent;color:var(--text);border-radius:9px;padding:7px 10px;font-size:14px;cursor:pointer;line-height:1;white-space:nowrap}.pb-btn:hover:not(:disabled){border-color:var(--accent)}.pb-btn:disabled{opacity:.35;cursor:default}.pb-btn.pb-primary{background:var(--seg-active-bg);border-color:var(--accent);font-weight:600;padding:7px 14px}#pb-label,#eb-label{font-size:12px;color:var(--muted);min-width:92px;text-align:center;font-variant-numeric:tabular-nums}.grid2d .sq.epv{box-shadow:inset 0 0 0 3px var(--m-cap, #ff7043)}