:root{--bg: #0b1220;--panel: #111a2e;--panel-2: #18223c;--text: #f8fafc;--muted: #94a3b8;--border: #1f2a44;--accent: #38bdf8;--lvl-0: #16a34a;--lvl-1: #eab308;--lvl-2: #f97316;--lvl-3: #ef4444;--lvl-4: #64748b;--lvl-5: #1e293b;--board-bg: radial-gradient(circle at 30% 0%, #142042 0%, #0b1220 60%);--chip-bg: rgba(255,255,255,.06);--on-accent: #032234}[data-theme=light]{--bg: #f1f5f9;--panel: #ffffff;--panel-2: #f8fafc;--text: #0f172a;--muted: #475569;--border: #cbd5e1;--accent: #0284c7;--lvl-5: #475569;--board-bg: radial-gradient(circle at 30% 0%, #e2e8f0 0%, #f1f5f9 60%);--chip-bg: rgba(0,0,0,.05);--on-accent: #ffffff}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Pretendard,Noto Sans KR,Malgun 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.2s}.board__theme:hover{color:var(--text);border-color:var(--accent)}.board__user{color:var(--muted);font-size:clamp(12px,1.2vw,14px);padding:4px 10px;border-radius:999px;background:var(--chip-bg);border:1px solid var(--border)}.btn--sm{padding:6px 12px;font-size:13px}.board__grid{flex:1;display:grid;--g: clamp(8px, 1.4vw, 18px);gap:var(--g);grid-template-columns:repeat(auto-fit,minmax(min(100%,max(260px,calc((100% - (var(--cols, 3) - 1) * var(--g)) / var(--cols, 3)))),1fr));align-content:stretch}.room{position:relative;border-radius:18px;padding:clamp(12px,2vw,28px);display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(180deg,#ffffff0a,#0000001a),var(--card-bg, var(--lvl-4));color:#fff;min-height:200px;overflow:hidden;box-shadow:0 8px 30px #00000059}.room--lvl-0{--card-bg: var(--lvl-0)}.room--lvl-1{--card-bg: var(--lvl-1)}.room--lvl-2{--card-bg: var(--lvl-2)}.room--lvl-3{--card-bg: var(--lvl-3)}.room--lvl-4{--card-bg: 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