:root{--p1: #4fc3f7;--p2: #ff7a5c;--ink: #f3f6ff;--ink-dim: rgba(243, 246, 255, .62);--panel: rgba(16, 18, 34, .72);--panel-solid: #141628;--stroke: rgba(255, 255, 255, .12);--accent: #ffd479;--danger: #ff5d73;--radius: 16px;--shadow: 0 18px 44px rgba(0, 0, 0, .45);--font: "Segoe UI", system-ui, -apple-system, "Inter", sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;overflow:hidden;background:#070810;color:var(--ink);font-family:var(--font);user-select:none;-webkit-font-smoothing:antialiased}#app{position:relative;width:100vw;height:100vh}#stage{position:absolute;inset:0;width:100%;height:100%;display:block}#ui{position:absolute;inset:0;pointer-events:none}#ui>*{pointer-events:auto}button{font-family:inherit;font-size:15px;color:var(--ink);background:#ffffff0f;border:1px solid var(--stroke);border-radius:12px;padding:11px 20px;cursor:pointer;transition:transform .12s ease,background .18s ease,border-color .18s 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