:root{color-scheme:light;--bg-main: #dce9f4;--bg-panel: #0f2d42;--bg-panel-soft: #184866;--text-primary: #ffffff;--text-dim: #b6d0e2;--accent: #ffc857;--danger: #f35b5b;--ok: #66d17a}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:Avenir Next,Segoe UI,sans-serif;background:radial-gradient(circle at 15% 15%,rgba(255,255,255,.8),transparent 40%),linear-gradient(165deg,#eff6fd,var(--bg-main))}#app{display:grid;grid-template-columns:340px minmax(0,1fr);min-height:100vh}#panel{background:linear-gradient(180deg,var(--bg-panel),var(--bg-panel-soft));color:var(--text-primary);padding:20px;display:flex;flex-direction:column;gap:16px;box-shadow:inset -1px 0 #ffffff14}.panel-title{margin:0;font-size:1.7rem;letter-spacing:.02em}.panel-subtitle{margin:0;color:var(--text-dim)}.control-group{display:flex;flex-direction:column;gap:8px}label{font-size:.9rem;color:var(--text-dim)}input{border:1px solid rgba(255,255,255,.2);background:#07141f61;color:var(--text-primary);border-radius:10px;padding:10px 12px;font-size:.95rem}button{border:none;border-radius:10px;padding:10px 12px;font-size:.95rem;font-weight:700;cursor:pointer;transition:transform .14s ease,opacity .14s ease}button:hover{transform:translateY(-1px)}button:disabled{cursor:not-allowed;opacity:.45;transform:none}button.primary{background:var(--accent);color:#102739}button.secondary{background:#ffffff26;color:var(--text-primary)}button.rematch{background:var(--ok);color:#102739}.status{min-height:48px;font-size:.95rem;line-height:1.35;color:var(--text-dim)}.status.error{color:#ffd4d4}.meta{background:#08172359;border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:10px;display:flex;flex-direction:column;gap:6px}.meta strong{color:#fff}#game-shell{display:grid;place-items:center;padding:16px}#game-container{width:min(1280px,100%);aspect-ratio:16 / 9;border-radius:16px;overflow:hidden;box-shadow:0 24px 44px #0003,0 0 0 1px #fff3}@media(max-width:1000px){#app{grid-template-columns:1fr;grid-template-rows:auto 1fr}#panel{box-shadow:none}#game-shell{padding:8px}}