*{box-sizing:border-box}html,body{margin:0;padding:0;background:#0e0f11;color:#f2f2f2;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial}
header{padding:16px 20px;border-bottom:1px solid #2a2a2a;background:#131417;position:sticky;top:0;z-index:2}
h1{margin:0 0 4px 0;font-size:20px;letter-spacing:.3px}
.subtitle{margin:0;color:#c9c9c9;font-size:13px}
main{padding:16px;display:grid;grid-template-columns:1fr;gap:16px}
#stage{width:min(92vw,900px);height:min(92vw,560px);border:1px solid #333;background:linear-gradient(180deg,#17191d,#0e0f11 60%);display:grid;place-items:center;perspective:1000px;overflow:hidden;border-radius:12px;margin:0 auto}
#cube{--scale:1;transform-style:preserve-3d;transform:scale(var(--scale)) rotateX(-18deg) rotateY(28deg);position:relative;touch-action:none}
#cube.animate{animation:spinY 18s linear infinite}
@keyframes spinY{to{transform:scale(var(--scale)) rotateX(-18deg) rotateY(388deg)}}
.face{position:absolute;width:280px;height:280px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.18);border-radius:10px;background:#000;user-select:none;cursor:pointer;overflow:hidden}
.face span{opacity:.7;font-size:14px}
#cube .front{transform:translateZ(140px)}#cube .right{transform:rotateY(90deg) translateZ(140px)}
#cube .back{transform:rotateY(180deg) translateZ(140px)}#cube .left{transform:rotateY(-90deg) translateZ(140px)}
#cube .top{transform:rotateX(90deg) translateZ(140px)}#cube .bottom{transform:rotateX(-90deg) translateZ(140px)}
.video-wrap{position:relative;width:100%;height:100%}
.video-wrap iframe{position:absolute;inset:0;width:100%;height:100%}
.play-overlay,.open-feed{position:absolute;left:50%;bottom:8px;transform:translateX(-50%);background:#1e90ff;border:none;color:#fff;padding:8px 12px;border-radius:8px;display:none}
.badge{position:absolute;top:8px;left:8px;background:#e53935;color:#fff;padding:2px 6px;border-radius:6px;font-size:11px;letter-spacing:.6px}
.badge.city{background:#3949ab}
.hint{color:#bdbdbd;font-size:12px;text-align:center;margin-top:6px}
.panel{background:#15161a;border:1px solid #2a2a2a;border-radius:12px;padding:12px}
.panel h2{margin:0 0 8px 0;font-size:16px;letter-spacing:.2px}
.small{font-size:12px;color:#c9c9c9;margin:6px 0}
.row{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px;align-items:center}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px}
button{background:#1e90ff;border:none;color:#fff;padding:10px 14px;border-radius:9px;cursor:pointer}
button:hover{filter:brightness(1.05)}
button:active{transform:translateY(1px)}
label{display:flex;align-items:center;gap:8px}