:root{color-scheme:dark;--bg:#16231e;--panel:#202f28;--panel2:#293a32;--ink:#f2f0e8;--muted:#a6b0a7;--accent:#d9bd78;--board-light:#eadfc9;--board-dark:#718b78;--line:#43564a;--red:#d7685a}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}button,input,select{font:inherit}button{cursor:pointer}.hidden{display:none!important}.top{height:64px;padding:0 clamp(18px,5vw,68px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #34453b}.brand{color:var(--ink);font-weight:750;text-decoration:none;letter-spacing:.02em;display:flex;align-items:center;gap:10px}.mark{display:grid;place-items:center;background:var(--accent);color:#18231d;width:30px;height:30px;border-radius:7px;font-family:Georgia,serif;font-size:19px}.connection{font-size:13px;color:var(--muted)}.lobby{max-width:1200px;margin:auto;padding:56px clamp(18px,5vw,68px) 64px}.welcome{max-width:700px}.eyebrow{font-size:11px;letter-spacing:.18em;color:var(--accent);font-weight:700;margin:0 0 12px}.welcome h1{font-size:clamp(42px,7vw,70px);letter-spacing:-.055em;margin:0 0 25px;font-weight:650}.name-label,.fields label{display:flex;flex-direction:column;gap:8px;color:var(--muted);font-size:13px}.name-label input{width:min(100%,340px)}input,select{min-height:42px;padding:9px 12px;color:var(--ink);background:#17251f;border:1px solid #536257;border-radius:6px;outline:0}input:focus,select:focus{border-color:var(--accent)}.message{min-height:20px;color:#efad9f}.modes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:36px}.mode-card{background:var(--panel);border:1px solid #34473c;border-radius:9px;padding:22px;display:flex;flex-direction:column;gap:15px;min-height:290px}.mode-head{display:flex;gap:13px;align-items:center}.mode-no{font-size:12px;color:var(--accent);font-variant-numeric:tabular-nums}.mode-card h2{font-size:22px;margin:0;font-weight:620}.mode-card p{margin:0;color:var(--muted);font-size:14px}.button{border:0;border-radius:6px;padding:11px 15px;background:var(--accent);color:#20251e;font-weight:700}.button:hover{background:#ead49c}.button.secondary{background:#3b5145;color:var(--ink);border:1px solid #566a5d}.button.secondary:hover{background:#4a6354}.mode-card>.button{margin-top:auto}.fields{display:grid;grid-template-columns:1fr 1fr;gap:10px}.join-row{display:flex;gap:8px}.join-row input{flex:1;min-width:0;text-transform:uppercase}.resume{margin-top:20px;background:#33483c;padding:12px 16px;border-radius:6px;display:flex;justify-content:space-between;align-items:center;gap:15px}.game{max-width:1280px;margin:0 auto;padding:24px clamp(12px,3vw,42px);display:grid;grid-template-columns:minmax(320px,720px) minmax(260px,360px);gap:28px;justify-content:center}.play-area{min-width:0}.player-strip{display:flex;justify-content:space-between;align-items:center;min-height:48px;padding:4px 7px}.player-name{font-weight:650}.side-label{font-size:11px;color:var(--muted);margin-left:9px;text-transform:uppercase;letter-spacing:.09em}.clock{font-variant-numeric:tabular-nums;background:#293a32;padding:6px 11px;border-radius:5px;font-size:18px;min-width:74px;text-align:center}.clock.active{color:#1d241b;background:var(--accent)}.board-wrap{position:relative;width:min(100%, min(75vh,720px));aspect-ratio:1;background:#25332b;touch-action:none}.board{width:100%;height:100%;display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);user-select:none;box-shadow:0 12px 34px #07110c66}.square{position:relative;display:flex;justify-content:center;align-items:center;min-width:0;min-height:0;cursor:pointer}.square.light{background:var(--board-light)}.square.dark{background:var(--board-dark)}.square.last::before{content:"";position:absolute;inset:0;background:#e4bf5670}.square.selected::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 4px #d8b752}.square.checked{background:#ce655b!important}.piece{position:relative;z-index:2;font-family:"DejaVu Sans",serif;font-size:clamp(26px,7.4vw,74px);line-height:1;cursor:grab;filter:drop-shadow(0 2px 1px #0005)}.piece.white{color:#fffdf4;text-shadow:0 1px 2px #253029,1px 0 1px #253029,-1px 0 1px #253029}.piece.black{color:#252a25;text-shadow:0 1px 0 #faf3dfaa}.legal-dot{position:absolute;z-index:1;width:23%;height:23%;border-radius:50%;background:#25382b66}.capture-ring{position:absolute;inset:5%;border-radius:50%;border:5px solid #3b312590}.coords{position:absolute;z-index:3;font:600 10px/1 ui-monospace,monospace;pointer-events:none;color:#38483b}.coords.file{bottom:3px;right:4px}.coords.rank{top:3px;left:4px}.dark .coords{color:#f3ead8}.square.drag-from .piece{opacity:.28}.hint-arrow{position:absolute;inset:0;width:100%;height:100%;z-index:4;pointer-events:none;overflow:visible}.three-board{display:block;position:absolute;inset:0;width:100%;height:100%;touch-action:none}.toolbar{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}.tool{background:#293a32;color:var(--ink);border:1px solid #465a4c;border-radius:5px;padding:8px 11px;font-size:13px}.tool:hover{background:#3a4c40}.tool:disabled{opacity:.4;cursor:default}.hint-text{min-height:22px;padding:9px 2px;color:var(--accent);font-size:13px}.game-side{padding-top:49px;min-width:0}.status-row{min-height:48px;border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:5px}.status-row strong{font-size:17px}.status-row span{font-size:12px;color:var(--muted)}.invite{padding:18px 0;border-bottom:1px solid var(--line)}.invite h2,.history h2{font-size:15px;margin:0 0 13px}.invite-code{font-size:30px;letter-spacing:.2em;font-weight:720;color:var(--accent)}.invite p{font-size:13px;color:var(--muted)}.actions{display:flex;flex-wrap:wrap;gap:8px}.app-link{text-decoration:none;display:inline-flex;align-items:center}.history{padding:18px 0;border-bottom:1px solid var(--line)}.move-list{max-height:280px;overflow:auto;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 6px;font:13px/1.6 ui-monospace,monospace;color:#d7ddd5}.move-row{display:contents}.move-num{color:#809084}.move-cell{padding:2px 5px;border-radius:3px}.move-cell.latest{background:#3b5145;color:#fff}.online-controls{padding:16px 0;display:flex;flex-wrap:wrap;gap:8px}.home-button{margin-top:14px}.overlay{position:fixed;inset:0;z-index:20;background:#0b130fbd;display:grid;place-items:center;padding:20px}.dialog{width:min(100%,390px);background:var(--panel);border:1px solid #526458;border-radius:9px;padding:25px}.dialog h2{margin:0 0 9px;font-size:24px}.dialog p{color:var(--muted)}.promotion-options{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:20px}.promotion-options button{font-size:42px;background:#36483b;border:1px solid #5b6f5f;border-radius:5px;color:#fff}.promotion-options button:hover{background:#526652}.hint-line{stroke:#e7ad38;stroke-width:7;stroke-linecap:round;opacity:.88}.hint-tip{fill:#e7ad38}@media(max-width:800px){.lobby{padding-top:36px}.modes{grid-template-columns:1fr}.mode-card{min-height:0}.game{grid-template-columns:minmax(0,1fr);max-width:690px;padding-top:12px;gap:10px}.game-side{padding-top:4px}.board-wrap{width:min(100%,calc(100vw - 24px),65vh);margin:auto}.history{max-height:none}.move-list{max-height:160px}.toolbar{justify-content:center}.top{height:56px}}@media(max-width:420px){.mode-card{padding:17px}.game{padding-left:8px;padding-right:8px}.piece{font-size:10vw}.toolbar{gap:5px}.tool{padding:8px 9px}.board-wrap{width:calc(100vw - 16px)}}
.square.threatened::before{content:"";position:absolute;inset:0;background:#d7463c3d}.piece{animation:piece-appear 140ms ease-out}@keyframes piece-appear{from{transform:translateY(-4px) scale(.9)}to{transform:translateY(0) scale(1)}}.depth-choice{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:11px}.depth-choice select{min-height:34px;padding:5px 8px;color:var(--ink);background:#17251f;border:1px solid #536257;border-radius:5px}@media(prefers-reduced-motion:reduce){.piece{animation:none}}
.top{height:auto;min-height:64px;gap:12px;flex-wrap:wrap;padding-block:10px}
.top .connection{margin-left:auto}
.download-link{font-size:14px;text-decoration:none;white-space:nowrap}

.camera-controls{padding:16px 0;border-bottom:1px solid var(--line);display:flex;align-items:center;flex-wrap:wrap;gap:8px}
.camera-controls [role=status]{flex:1 1 100%;min-height:18px;color:var(--muted);font-size:13px}
.camera-notice{margin:0;color:var(--muted);font-size:12px}
.camera-board{display:block;position:relative;width:128px;height:112px;margin:10px 0 0 auto;padding:0;overflow:hidden;border:1px solid var(--line);border-radius:6px;background:#101713;color:var(--ink);font:inherit;cursor:pointer}
.camera-board video{width:100%;height:100%;object-fit:contain}
.camera-board span{position:absolute;bottom:0;left:0;right:0;padding:4px;background:#101713cc;font-size:11px;text-align:center}
.video-stage{position:fixed;inset:0;z-index:30;background:#101713;display:grid;place-items:center}
.video-stage>video{position:absolute;width:100%;height:100%;object-fit:contain;background:#101713}
.local-video-swap{position:absolute;top:18px;right:18px;width:min(26vw,168px);aspect-ratio:3/4;padding:0;overflow:hidden;border:2px solid var(--ink);border-radius:7px;background:#111;z-index:3}
.local-video-swap video{width:100%;height:100%;object-fit:contain}
.stage-board-toggle,.stage-camera-off{position:absolute;bottom:18px;z-index:4;background:#202f28}
.stage-board-toggle{left:18px}
.stage-camera-off{right:18px}
@media(max-width:800px){.local-video-swap{width:30vw;top:12px;right:12px}.stage-board-toggle{left:12px;bottom:12px}.stage-camera-off{right:12px;bottom:12px}}
.stage-camera-status{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;padding:8px 12px;background:#16231ecc;color:var(--ink);border-radius:4px;font-size:14px;pointer-events:none;text-align:center}
.move-list{grid-template-columns:2.4em repeat(2,minmax(0,1fr))}