:root{--bg:#080a0f;--hud-bg:#0c0f16c7;--hud-border:#d4af375c;--gold:#d4af37;--gold-bright:#f5d76e;--text:#f0ece1;--muted:#9aa0a6;--accent-blue:#4ea8de;--danger:#e63946}*{box-sizing:border-box;-webkit-user-select:none;user-select:none;margin:0;padding:0}html,body,#root{background:var(--bg);width:100vw;height:100vh;color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,serif;overflow:hidden}#canvas-container{z-index:1;width:100vw;height:100vh;position:fixed;inset:0}#canvas-container canvas{display:block;width:100%!important;height:100%!important}#hud-top{z-index:10;pointer-events:none;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex;position:fixed;top:16px;left:20px;right:20px}.hud-group{pointer-events:auto;flex-wrap:wrap;align-items:center;gap:10px;display:flex}.brand-pill{background:var(--hud-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--hud-border);border-radius:999px;align-items:center;gap:10px;padding:8px 16px;display:flex;box-shadow:0 8px 24px #0000008c}.brand-title{letter-spacing:.1em;text-transform:uppercase;color:var(--gold);font-size:.95rem;font-weight:700}.status-pill{background:var(--hud-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid #ffffff1f;border-radius:999px;align-items:center;gap:10px;padding:8px 16px;font-size:.86rem;font-weight:600;display:flex;box-shadow:0 8px 24px #0000008c}.turn-dot{background:#f5f3ef;border-radius:50%;width:10px;height:10px;transition:all .25s;box-shadow:0 0 8px #fffc}.turn-dot.black{border:1.5px solid var(--gold);background:#2b303c;box-shadow:0 0 8px #d4af3780}.mode-badge{color:var(--gold-bright);letter-spacing:.04em;background:#d4af3729;border:1px solid #d4af3752;border-radius:999px;padding:2px 9px;font-size:.75rem}.hud-divider{background:#d4af3747;width:1px;height:22px;margin:0 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strong{color:var(--gold-bright);font-weight:600}.captured-pill{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--text);background:#0a0c12b8;border:1px solid #ffffff14;border-radius:999px;align-items:center;gap:12px;padding:6px 14px;font-size:.78rem;display:flex}.captured-pill:empty{display:none}body.cinematic-ui-hidden #hud-top,body.cinematic-ui-hidden #hud-bottom{transition:opacity .25s;opacity:0!important;pointer-events:none!important}#checkmate-overlay{z-index:24;pointer-events:none;opacity:0;flex-direction:column;justify-content:flex-start;align-items:center;padding-top:78px;transition:opacity .55s cubic-bezier(.22,1,.36,1),transform .55s cubic-bezier(.22,1,.36,1);display:flex;position:fixed;inset:0;transform:translateY(-12px)scale(.97)}#checkmate-overlay.visible{opacity:1;transform:translateY(0)scale(1)}#checkmate-overlay.visible .checkmate-banner{pointer-events:auto}.checkmate-banner{pointer-events:none;text-align:center;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:radial-gradient(at 50% 0,#d4af373d,#0000 72%),linear-gradient(#0e111af0 0%,#080a10f5 100%);border:1.5px solid #d4af37c7;border-radius:6px;min-width:480px;max-width:92vw;padding:22px 44px 20px;position:relative;box-shadow:0 24px 64px #000000e0,0 0 42px #d4af3740,inset 0 0 24px #d4af371f}.checkmate-banner:before{content:"";pointer-events:none;border:1px solid #d4af3757;border-radius:3px;position:absolute;inset:5px}.checkmate-ornament{letter-spacing:.34em;text-transform:uppercase;color:#d4af37d9;margin-bottom:4px;font-family:Georgia,Times New Roman,serif;font-size:.72rem}.checkmate-crown{color:var(--gold-bright);text-shadow:0 0 18px #f5d76ebf;margin-bottom:4px;font-size:1.85rem;line-height:1}.checkmate-title{letter-spacing:.22em;text-transform:uppercase;background:linear-gradient(#fff6d1 0%,#f5d76e 48%,#b8891e 100%);-webkit-text-fill-color:transparent;filter:drop-shadow(0 4px 14px #000000d9);-webkit-background-clip:text;margin:2px 0 6px;font-family:Cinzel,Georgia,Times New Roman,serif;font-size:2.35rem;font-weight:800}.checkmate-rule{background:linear-gradient(90deg,#0000 0%,#d4af37d9 50%,#0000 100%);width:72%;height:1px;margin:8px auto 10px}.checkmate-subtitle{letter-spacing:.12em;text-transform:uppercase;color:#f0ece1;margin-bottom:14px;font-family:Georgia,Times New Roman,serif;font-size:.96rem;font-weight:600}.checkmate-actions{justify-content:center;align-items:center;gap:10px;display:flex}.checkmate-btn{color:var(--gold-bright);letter-spacing:.08em;text-transform:uppercase;cursor:pointer;background:#d4af3729;border:1px solid #d4af379e;border-radius:4px;padding:7px 16px;font-size:.76rem;font-weight:700;transition:all 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#d4af376b;border-radius:999px;justify-content:center;align-items:center;padding:6px 14px;font-size:.78rem;font-weight:600;display:inline-flex;position:relative}.mobile-sheet-close:hover,.mobile-sheet-close:active{border-color:var(--gold);color:var(--gold-bright)}.mobile-sheet-section-label{letter-spacing:.06em;text-transform:uppercase;color:var(--muted);grid-column:span 6;justify-content:space-between;align-items:center;padding:4px 2px 2px;font-size:.7rem;font-weight:600;display:flex}.mobile-sheet-section-sub{letter-spacing:.02em;text-transform:none;color:#f5d76ec7;font-size:.66rem;font-weight:500}#hud-right .hud-divider{display:none}#hud-right .hud-btn{text-align:center;white-space:nowrap;border-radius:12px;justify-content:center;align-items:center;width:100%;min-height:44px;padding:10px;font-size:.8rem;display:inline-flex}#btn-side-toggle,#btn-ai-move,#btn-reset{grid-column:span 2}#btn-cam-player,#btn-cam-top,#btn-cam-side,#btn-cam-wide{grid-column:span 3}#btn-hide-ui{grid-column:span 6}.mobile-sheet-hint{color:var(--muted);text-align:center;background:#ffffff0a;border:1px solid #d4af372e;border-radius:10px;grid-column:span 6;margin-top:2px;padding:9px 12px;font-size:.72rem;line-height:1.45;display:block}.mobile-sheet-hint strong{color:var(--gold-bright);font-weight:600}#hud-bottom{z-index:8;justify-content:center;bottom:12px;left:12px;right:12px}#controls-hint{display:none}.captured-pill{padding:6px 12px;font-size:.74rem}#checkmate-overlay{padding-top:64px}.checkmate-banner{width:calc(100vw - 24px);min-width:0;max-width:420px;padding:18px 18px 16px}.checkmate-title{letter-spacing:.16em;font-size:1.65rem}.checkmate-subtitle{letter-spacing:.08em;font-size:.8rem}.checkmate-actions{flex-wrap:wrap;gap:8px}}@media (width<=380px){.brand-pill{padding:6px 9px}.brand-title{font-size:.7rem}.status-pill{padding:6px 9px;font-size:.72rem}.mobile-controls-trigger{padding:6px 11px;font-size:.74rem}#btn-side-toggle{grid-column:span 6}#btn-ai-move,#btn-reset{grid-column:span 3}}