html,body{margin:0;padding:0;width:100%;height:100%;font-family:Avenir Next,Trebuchet MS,Segoe UI,sans-serif;background:radial-gradient(circle at 20% 0%,#283f66 0%,transparent 35%),radial-gradient(circle at 85% 100%,#1b3c31 0%,transparent 30%),linear-gradient(170deg,#071120,#050c17 60%);color:#e2e8f0}#app{width:100vw;height:100vh;overflow:hidden;box-sizing:border-box;padding:0}.hud{position:absolute;top:16px;right:20px;z-index:20;display:flex;align-items:flex-start;justify-content:flex-end;gap:12px;pointer-events:auto}#game-root{position:relative;width:100%;height:100%;overflow:hidden}.loading-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:30;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(circle at 20% 18%,rgba(56,189,248,.18),transparent 30%),radial-gradient(circle at 82% 78%,rgba(34,197,94,.16),transparent 26%),linear-gradient(180deg,#030914d1,#030914f0);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);opacity:1;visibility:visible;transition:opacity .18s ease,visibility .18s ease}.loading-overlay.is-hidden{opacity:0;visibility:hidden;pointer-events:none}.loading-panel{width:min(420px,100%);padding:28px 26px 24px;border:1px solid rgba(125,211,252,.24);border-radius:22px;background:linear-gradient(180deg,#081428f0,#040b18f5);box-shadow:0 24px 70px #00000061;text-align:center}.loading-spinner{width:56px;height:56px;margin:0 auto 18px;border:3px solid rgba(148,163,184,.22);border-top-color:#38bdf8;border-right-color:#22c55e;border-radius:50%;animation:loading-spin .9s linear infinite}.loading-title{color:#f8fafc;font-size:26px;font-weight:700;letter-spacing:.2px}.loading-detail{margin-top:10px;color:#bfd5f1;font-size:15px;line-height:1.5}.loading-progress{min-height:22px;margin-top:14px;color:#7dd3fc;font-size:14px;font-weight:700;letter-spacing:.4px;text-transform:uppercase}.loading-progress.is-empty{visibility:hidden}.banner{min-width:150px;padding:10px 14px;border:1px solid rgba(71,117,173,.75);border-radius:14px;background:#040e21d1;box-shadow:0 12px 32px #00000047;color:#dbeafe;font-size:15px;letter-spacing:.3px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.session-button{padding:10px 14px;border:1px solid rgba(252,165,165,.82);border-radius:14px;background:#7f1d1de0;color:#fee2e2;font:inherit;cursor:pointer;transition:transform .12s ease,background .12s ease}.session-button:hover{background:#991b1bf2;transform:translateY(-1px)}.session-button:active{transform:translateY(0)}canvas{display:block;width:100%!important;height:100%!important}@media(max-width:900px){.hud{top:12px;right:12px;gap:8px}.banner,.session-button{padding:8px 10px;font-size:13px}.loading-overlay{padding:18px}.loading-panel{padding:24px 18px 20px;border-radius:18px}.loading-title{font-size:22px}.loading-detail{font-size:14px}}@keyframes loading-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}