:root{--bg: #14171c;--bg-raised: #1c2129;--bg-card: #212834;--border: #303948;--fg: #e6ebf2;--fg-dim: #8b96a6;--accent: #4a9eea;--danger: #e05555;--cell: #262e3b;--cell-line: #1a2029;--p0: #4a9eea;--p1: #e8c547;--p2: #e05555;--p3: #52b788;--radius: 10px;--shadow: 0 8px 30px rgba(0, 0, 0, .45)}*{box-sizing:border-box}html,body{margin:0;height:100%;overscroll-behavior:none}body{position:fixed;top:0;right:0;bottom:0;left:0;overflow:hidden;background:radial-gradient(1200px 800px at 70% -10%,#1b2230 0%,var(--bg) 55%);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,sans-serif;font-size:15px;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}#root{height:100%}button{touch-action:manipulation}button{font:inherit}.btn{background:var(--bg-card);color:var(--fg);border:1px solid var(--border);border-radius:8px;padding:8px 16px;cursor:pointer;transition:background .15s,border-color .15s,transform 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8px;font-size:13px}.lobby-footer{display:flex;justify-content:space-between;align-items:center;margin-top:8px}.game{height:100%;display:flex;flex-direction:column}.game-header{display:flex;align-items:center;gap:14px;padding:10px 18px;border-bottom:1px solid var(--border);background:var(--bg-raised)}.conn-dot{width:9px;height:9px;border-radius:50%}.conn-dot.on{background:#52b788;box-shadow:0 0 6px #52b78888}.conn-dot.off{background:var(--danger)}.banner{flex:1;text-align:center;color:var(--fg-dim);font-size:15px}.game-main{flex:1;display:flex;gap:20px;padding:18px;justify-content:center;align-items:flex-start;min-height:0;overflow-y:auto;overflow-x:hidden}.board-col{display:flex;flex-direction:column;gap:12px;min-width:0}.board-wrap{--board-pad: 12px;position:relative;background:var(--bg-raised);border:1px solid 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#0000008c;cursor:grab;touch-action:none}.ring-handle:after{content:"";position:absolute;top:-13px;right:-13px;bottom:-13px;left:-13px;border-radius:50%}.ring-handle.h0{left:100%;top:50%;translate:-50% -50%}.ring-handle.h1{left:50%;top:100%;translate:-50% -50%}.ring-handle.h2{left:0;top:50%;translate:-50% -50%}.ring-handle.h3{left:50%;top:0;translate:-50% -50%}.placed.shake{animation:shake .4s ease-in-out}.placed.flip-h{animation:flip-h .28s ease-in-out}.placed.flip-v{animation:flip-v .28s ease-in-out}@keyframes flip-h{0%{transform:scaleX(-1)}50%{transform:scale(.08,1.14)}to{transform:scale(1)}}@keyframes flip-v{0%{transform:scaleY(-1)}50%{transform:scale(1.14,.08)}to{transform:scale(1)}}.mobile-actions{display:flex;position:fixed;left:50%;transform:translate(-50%);bottom:calc(14px + env(safe-area-inset-bottom));z-index:25;gap:10px;padding:8px 10px;background:color-mix(in srgb,var(--bg-raised) 88%,transparent);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid var(--border);border-radius:999px;box-shadow:var(--shadow);animation:rise-in .15s ease-out}@keyframes rise-in{0%{opacity:0;translate:0 10px}}.act-btn{width:48px;height:48px;border-radius:50%;border:1px solid var(--border);background:var(--bg-card);color:var(--fg);font-size:22px;line-height:1;cursor:pointer;touch-action:manipulation;display:flex;align-items:center;justify-content:center}.act-btn:active:not(:disabled){transform:translateY(1px)}.act-btn.confirm{background:var(--accent);border-color:transparent;color:#0b1017;font-weight:700}.act-btn.confirm:disabled{opacity:.4}.act-btn.cancel{color:var(--danger)}.hint-card{width:min(400px,92vw)}.hint-list{margin:0 0 20px;padding-left:20px;color:var(--fg-dim);line-height:1.8;font-size:14px}.hint-list b{color:var(--fg)}.overlay-actions.center{justify-content:center}.help-btn{display:none}@media(pointer:coarse){.help-btn{display:inline-block}}@keyframes shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-5px)}40%,80%{transform:translate(5px)}}.tray{display:flex;gap:8px;overflow-x:auto;padding:10px;background:var(--bg-raised);border:1px solid var(--border);border-radius:14px;max-width:min(72vh,640px,92vw);scrollbar-width:thin;touch-action:pan-x;-webkit-overflow-scrolling:touch}.tray.disabled{opacity:.55;pointer-events:none}.piece-tile{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:76px;height:76px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);cursor:grab;touch-action:pan-x;transition:border-color .15s,transform .1s;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}.piece-tile svg{max-width:calc(100% - 10px);max-height:calc(100% - 10px);width:auto;height:auto}.piece-tile:hover{border-color:var(--accent);transform:translateY(-2px)}.piece-tile.held{border-color:var(--accent);background:#24344a}.tray-empty{padding:24px;color:var(--fg-dim)}.side{display:flex;flex-direction:column;gap:10px;width:240px;flex-shrink:0}.player-card{display:flex;align-items:center;gap:12px;background:var(--bg-raised);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px;transition:border-color .2s,background .2s}.player-card.active{border-color:var(--accent);background:#223047}.player-card.dead{opacity:.6}.player-card.winner{border-color:var(--p1)}.player-info{flex:1;min-width:0}.player-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.player-sub{color:var(--fg-dim);font-size:12px}.thinking{color:var(--accent);animation:pulse 1.2s ease-in-out infinite}.player-score{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums}.hint-box{margin-top:8px;padding:12px 14px;border:1px dashed var(--border);border-radius:var(--radius);color:var(--fg-dim);font-size:12px;line-height:1.7}.cursor-ghost{position:fixed;left:0;top:0;will-change:transform;pointer-events:none;z-index:30}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0d12b8;display:flex;align-items:center;justify-content:center;z-index:40;animation:fade .25s ease-out}@keyframes fade{0%{opacity:0}}.overlay-card{background:var(--bg-raised);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);padding:30px 36px;width:360px}.overlay-card h2{margin:0 0 18px;text-align:center}.ranking{display:flex;flex-direction:column;gap:8px;margin-bottom:22px}.rank-row{display:flex;align-items:center;gap:10px;background:var(--bg-card);border-radius:8px;padding:8px 12px}.rank-pos{color:var(--fg-dim);width:20px}.rank-name{flex:1}.rank-score{font-weight:700;font-variant-numeric:tabular-nums}.overlay-actions{display:flex;justify-content:space-between}.error-toast{background:#3a1e22;border:1px solid var(--danger);color:#f2b8b8;border-radius:8px;padding:10px 14px;font-size:13px;text-align:center}.error-toast.floating{position:fixed;bottom:20px;left:50%;transform:translate(-50%);z-index:50}@media(max-width:900px){.game-main{flex-direction:column;align-items:center;justify-content:flex-start}.side{width:min(640px,92vw)}}@media(pointer:coarse){.ring-handle{width:26px;height:26px}.piece-tile{width:68px;height:68px}}@media(max-width:720px){.game-header{padding:8px 12px;gap:8px}.banner{font-size:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.game-main{gap:10px;padding:10px 8px calc(10px + env(safe-area-inset-bottom))}.board-wrap{--board-pad: 6px;border-radius:10px}.board{width:min(96vw,58svh)}.tray{max-width:96vw;padding:8px;display:grid;grid-auto-flow:column;grid-template-rows:repeat(2,56px);grid-auto-columns:56px;gap:6px}.piece-tile{width:56px;height:56px}.side{display:grid;grid-template-columns:1fr 1fr;gap:8px;width:96vw}.player-card{padding:8px 10px;gap:8px}.player-score{font-size:16px}.hint-box{display:none}.overlay-card{width:min(360px,92vw);padding:22px}}