:root{--bg:#0b0f1a;--fg:#eaf0ff;--muted:#8b97b5;--accent:#5ad1ff}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased;overscroll-behavior:none;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}body{min-height:100svh}canvas{display:block}canvas.fullscreen{touch-action:none;width:100vw;height:100svh;position:fixed;top:0;bottom:0;left:0;right:0}.gate{z-index:50;text-align:center;cursor:pointer;color:var(--fg);background:radial-gradient(circle at 50% 40%,#16203a,#05070d);place-items:center;padding:2rem;transition:opacity .35s;display:grid;position:fixed;top:0;bottom:0;left:0;right:0}.gate--gone{opacity:0;pointer-events:none}.gate__title{font-size:clamp(1.6rem,6vw,2.6rem);font-weight:700}.gate__sub{color:var(--muted);max-width:32ch;margin-top:.75rem}.gate__hint{color:var(--accent);letter-spacing:.18em;text-transform:uppercase;margin-top:1.5rem;font-size:.8rem;animation:1.6s infinite gate-pulse}@keyframes gate-pulse{0%,to{opacity:.4}50%{opacity:1}}.share-btn,.hub-nav{z-index:40;color:var(--fg);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);cursor:pointer;background:#0a101e99;border:1px solid #ffffff26;border-radius:999px;padding:.6rem 1rem;font-size:.95rem;text-decoration:none;position:fixed}.share-btn{right:max(1rem, env(safe-area-inset-right));bottom:max(1rem, env(safe-area-inset-bottom))}.hub-nav{left:max(1rem, env(safe-area-inset-left));top:max(1rem, env(safe-area-inset-top));align-items:center;gap:.3rem;display:inline-flex}.hub-nav__arrow{font-size:1.2rem;line-height:1}