:root{--bg-deep: #070b18;--bg-mid: #121a33;--ink: #f2f6ff;--muted: #9bb0d6;--accent: #ffcf3f}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;background:radial-gradient(circle at 50% 0%,var(--bg-mid) 0%,var(--bg-deep) 70%);color:var(--ink);font-family:Trebuchet MS,Segoe UI,system-ui,-apple-system,sans-serif;overscroll-behavior:none}body{display:flex;align-items:center;justify-content:center}#app{width:100%;height:100%;display:flex;align-items:center;justify-content:center;position:relative}#game-root{width:100%;height:100%;display:flex;align-items:center;justify-content:center;touch-action:none}#game-root canvas{display:block;max-width:100%;max-height:100%;border-radius:10px;box-shadow:0 18px 60px #0000008c;touch-action:none}.boot-status,.boot-error{position:absolute;inset:0;margin:auto;width:min(560px,90vw);height:fit-content;text-align:center;padding:24px}.boot-error{background:#0a0e1cf0;border:2px solid #ff6b6b;border-radius:14px;text-align:left}.boot-error[hidden]{display:none!important}.boot-error h1{font-size:1.25rem;margin:0 0 10px;color:#ff9f9f}.boot-error p,.boot-error li{color:var(--muted);font-size:.95rem;line-height:1.5}.boot-title{font-size:1.1rem;margin:16px 0 4px;letter-spacing:.04em}.boot-hint{color:var(--muted);font-size:.9rem;margin:0}.boot-spinner{width:46px;height:46px;margin:0 auto;border-radius:50%;border:4px solid rgba(255,255,255,.15);border-top-color:var(--accent);animation:boot-spin .9s linear infinite}@keyframes boot-spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion: reduce){.boot-spinner{animation-duration:2.4s}}