:root{--bg:#0c1119;--surface:#151e2a;--surface2:#1b2735;--border:#2a394a;--text:#edf2f7;--muted:#9caec0;--gold:#dfbc7b;--green:#62d6b0;--red:#f08b88;--sq-light:#e3d9c3;--sq-dark:#466778;color-scheme:dark}
body{background:radial-gradient(ellipse at 50% 5%,#20344866,transparent 65%),var(--bg);color:var(--text);font-family:Inter,"Segoe UI",sans-serif}
.topbar{background:#0c1119e8;border-color:var(--border);backdrop-filter:blur(18px);padding:18px 32px}
.brand h1{letter-spacing:-.6px}.brand .logo{background:#dfbc7b18;color:var(--gold);border:1px solid #dfbc7b44}.tag{color:var(--muted)}
main{max-width:1180px}.wrap{max-width:1380px;grid-template-columns:minmax(0,1fr) 340px;gap:28px;padding-top:28px}
.hero{padding:46px 0 30px;position:relative;border-bottom:1px solid var(--border);margin-bottom:28px}
.eyebrow{font-size:11px;letter-spacing:3px;color:var(--gold);text-transform:uppercase;font-weight:700}
.hero h2{font-size:clamp(30px,5vw,52px);letter-spacing:-2px;line-height:1.15;margin:12px 0;color:var(--text)}
.hero p{color:var(--muted);max-width:550px;font-size:15px}.hero a{display:inline-block;color:var(--gold);margin-top:20px;text-decoration:none;font-weight:700}
.panel,.player-bar,.lb-card,.row{background:linear-gradient(135deg,#192431,#121b27);border-color:var(--border);box-shadow:0 8px 25px #00000014}
.panel{border-radius:16px}.panel-head{padding:14px 16px;background:#ffffff03;color:#c5d4e2;letter-spacing:1px}.side{top:90px;gap:18px}
.player-bar{padding:14px 18px;border-radius:14px}.player-bar.active{border-color:#62d6b077;box-shadow:inset 3px 0 var(--green)}
.king{width:34px;height:34px;display:grid;place-items:center;border-radius:9px;background:#7d91a43b}.king.b{color:#adc4d9}.clock{font-size:20px;color:var(--text);font-variant-numeric:tabular-nums}.pname{color:var(--text)}
.board-frame{width:100%;border:1px solid var(--border);border-radius:18px;background:radial-gradient(ellipse at 50% 45%,#294355,#0e1722 72%);padding:12px;overflow:hidden}
.board-toolbar{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:2px 4px 12px;color:var(--muted);font-size:11px;letter-spacing:1px}.board-toolbar>div{display:flex;gap:6px}
.view-button{border:1px solid var(--border);background:#152231;color:var(--muted);border-radius:7px;padding:7px 11px;cursor:pointer;font:600 12px "Segoe UI",sans-serif}.view-button[aria-pressed=true]{background:#dfbc7b19;border-color:#dfbc7b77;color:var(--gold)}
button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--green);outline-offset:4px}
.board-stage{position:relative}.board-stage .board{max-width:640px;margin:auto;border:8px solid #253446;border-radius:5px}.scene{height:clamp(320px,48vw,650px);width:100%}.scene canvas{display:block;width:100%;height:100%;touch-action:pan-y}
.board-stage.is-3d .board{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);border:0}.board-stage:not(.is-3d) .scene{display:none}
.board-caption{text-align:center;font-size:11px;color:var(--muted);padding:8px}.sq.hl::after{background:#e9b64755;box-shadow:inset 0 0 0 3px #f4c768}.sq.target::after{box-shadow:inset 0 0 0 4px #66e6bd;background:#66e6bd44}.sq.target .pc{animation:land .65s ease-out}
@keyframes land{from{transform:translateY(-12%)}to{transform:translateY(-2%)}}
.moment{padding:22px;background:linear-gradient(125deg,#20392f,#182736);border:1px solid #62d6b044;border-radius:16px}.moment-label{color:var(--green);font-size:10px;letter-spacing:2px;font-weight:800}.moment strong{display:block;font-size:32px;letter-spacing:-1px;margin:7px 0;color:#f5e6c8}.moment p{font-size:12px;color:#b8c9d6}.moment.changed{animation:moment .8s ease-out}@keyframes moment{from{border-color:#a8e8ce}to{border-color:#62d6b044}}
.moves-body{max-height:245px;padding:10px}.mvrow{padding:6px}.mv{font-size:14px;padding:4px 7px}.mv.w,.mv.b{color:var(--text)}.mv.lastmv{color:var(--gold)}.chat-body{height:215px;padding:15px}.ctxt{color:#ccd8e4}.ct,.ro-note,footer{color:#92a3b5}.status-strip{color:var(--text);padding:12px}.status-strip .who{color:var(--green)}
.end-overlay{position:static;margin:10px 0;background:transparent;backdrop-filter:none}.end-card{background:#111e2af5;border-color:#dfbc7b77;padding:14px 20px;width:100%;max-width:100%}.end-card .r{font-size:20px}.replay-bar{flex-wrap:wrap}.replay-bar input[type=range]{min-width:30px;width:0}.rp-pos{min-width:42px}.board-caption{line-height:1.5}
.row{padding:18px}.sec-head{margin-top:28px}.lb th{padding:14px;background:var(--surface2)}.lb td{padding:14px}.lb .nm,.wName{color:var(--text)}.bName,.gid{color:#bed0e0}.empty-row,.lb-empty{border-color:var(--border);background:#ffffff02;padding:24px}.badge.live{color:var(--green);background:#62d6b012;border-color:#62d6b044}.tab.on{color:var(--gold)}
@media(max-width:960px){.wrap{grid-template-columns:1fr;max-width:800px}.side{position:static;display:grid;grid-template-columns:1fr 1fr}.moment{grid-column:1/-1}.scene{height:clamp(320px,75vw,620px)}}
@media(max-width:560px){.topbar{padding:12px}.wrap{padding:16px 10px;gap:16px}.side{display:flex}.player-bar{padding:10px;gap:7px}.ptag{display:none}.clock{font-size:16px}.board-frame{padding:6px}.board-toolbar{letter-spacing:0}.view-button{padding:7px 9px}.hero{padding-top:28px}.lb td,.lb th{padding:10px 7px}.lb .lg-tag{display:none}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Conversation stays beside the board, ahead of move history. */
.side .chat-body{height:clamp(280px,44vh,440px);gap:14px;padding:16px;overscroll-behavior:contain}
.side .cmsg{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:5px 10px;padding:0 0 13px;border-bottom:1px solid var(--border);font-size:14px;line-height:1.65}
.side .cwho{max-width:none;white-space:normal;overflow-wrap:anywhere;font-size:13px}
.side .ctxt{grid-column:1/-1;grid-row:2;overflow-wrap:anywhere}
.side .ct{grid-column:2;grid-row:1;align-self:center}
.side .moment{padding:14px 18px}.side .moment strong{font-size:25px;margin:3px 0}
@media(min-width:961px){.wrap{grid-template-columns:minmax(0,1fr) 380px}}
@media(min-width:961px){
  .side{max-height:calc(100dvh - 110px);overflow-y:auto;overscroll-behavior-y:contain;scrollbar-gutter:stable;scrollbar-width:thin;scrollbar-color:var(--muted) var(--surface);padding-right:8px;padding-bottom:8px}
  .side>*{flex-shrink:0}
  .side:focus-visible{outline:2px solid var(--gold);outline-offset:4px}
}
@media(max-width:960px){.side .chat-panel{grid-column:1/-1}.side .chat-body{height:320px}}
.chat-panel{scroll-margin-top:90px}.chat-jump{color:var(--gold);text-decoration:none;font-size:12px;font-weight:700;white-space:nowrap;padding:7px 10px;border:1px solid var(--border);border-radius:8px}
.board-themes{display:flex;gap:6px;flex-wrap:wrap;padding:0 4px 10px}
.theme-choice{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);border-radius:7px;padding:6px 9px;background:#14202c;color:var(--muted);font:600 12px "Segoe UI",sans-serif;cursor:pointer}
.theme-choice::before{content:"";width:16px;height:16px;border-radius:3px;background:linear-gradient(135deg,var(--swatch-light) 50%,var(--swatch-dark) 50%)}
.theme-choice[aria-pressed=true]{color:var(--text);border-color:var(--gold);background:#263442}
.board-stage .board{border-color:var(--board-rim,#253446)}
@media(max-width:560px){.topbar{gap:8px}.topbar .conn{padding:5px 7px}.chat-jump{padding:7px}.title h1{font-size:14px}}