:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;color:#ffffffde;background-color:#000;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;padding:0;overflow:hidden;width:100vw;height:100vh}canvas{display:block;width:100%;height:100%}.loading-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#0a0a1a,#1a1a2e,#0a0a1a);display:flex;align-items:center;justify-content:center;z-index:9999;transition:opacity .5s ease-out,visibility .5s ease-out}.loading-overlay.hidden{opacity:0;visibility:hidden;pointer-events:none}.loading-content{text-align:center;color:#fff}.loading-spinner{width:60px;height:60px;border:4px solid rgba(255,255,255,.1);border-top-color:#4da6ff;border-radius:50%;margin:0 auto 1.5rem;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-content h2{font-size:1.5rem;margin:0 0 .5rem;background:linear-gradient(to right,#4da6ff,#8b5cf6);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.loading-content p{color:#888;margin:0 0 1.5rem;font-size:.9rem}.loading-progress{width:200px;height:4px;background:#ffffff1a;border-radius:2px;margin:0 auto .5rem;overflow:hidden}.loading-bar{height:100%;width:0%;background:linear-gradient(90deg,#4da6ff,#8b5cf6);border-radius:2px;transition:width .3s ease-out}#loading-percent{font-size:.8rem;color:#666;font-family:monospace}#ui-layer{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;display:flex;flex-direction:column;justify-content:space-between;padding:2rem;box-sizing:border-box}.controls{pointer-events:auto;display:flex;gap:1rem;justify-content:center;margin-bottom:2rem}button{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;cursor:pointer;transition:all .25s;border-radius:8px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}button:hover{background:#fff3;border-color:#fff6}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}.planet-info{background:#0009;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:2rem;border-radius:16px;border:1px solid rgba(255,255,255,.1);max-width:400px;transform:translate(-120%);transition:transform .5s cubic-bezier(.4,0,.2,1);pointer-events:auto}.planet-info.visible{transform:translate(0)}.planet-info h1{margin:0 0 .5rem;font-size:2.5rem;background:linear-gradient(to right,#fff,#aaa);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-transform:uppercase;letter-spacing:1px}.planet-info p{margin:.5rem 0;color:#ccc}.stats{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.1)}.stat-composition{grid-column:1 / -1}.stat-item label{display:block;font-size:.8rem;color:#888;text-transform:uppercase;letter-spacing:1px}.stat-item span{font-size:1.2rem;font-weight:600}.speed-control{position:absolute;bottom:2rem;right:2rem;background:#0009;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:1rem;border-radius:12px;border:1px solid rgba(255,255,255,.1);display:flex;flex-direction:column;gap:.5rem;pointer-events:auto;width:200px}.speed-control label{font-size:.8rem;color:#aaa;text-transform:uppercase;letter-spacing:1px}.speed-control input{width:100%;cursor:pointer}.speed-control span{text-align:right;font-family:monospace;color:#fff}.skip-link{position:absolute;top:-40px;left:0;background:#000;color:#fff;padding:8px;z-index:100;transition:top .3s}.skip-link:focus{top:0}button:focus-visible,input:focus-visible{outline:3px solid #4da6ff;outline-offset:2px}.keyboard-help{position:fixed;bottom:0;left:0;right:0;background:#000c;color:#888;padding:.5rem;text-align:center;font-size:.8rem;opacity:0;transition:opacity .3s;pointer-events:none}body:focus-within .keyboard-help{opacity:1}@media(prefers-reduced-motion:reduce){.planet-info,button{transition:none}}@media(prefers-contrast:high){button,.planet-info,.speed-control{border:2px solid white}}@media(max-width:480px){#ui-layer{padding:1rem}.planet-info{max-width:100%;padding:1rem;border-radius:12px;max-height:40vh;overflow-y:auto}.planet-info h1{font-size:1.5rem}.planet-info p{font-size:.9rem}.stats{grid-template-columns:1fr 1fr;gap:.5rem;margin-top:.75rem;padding-top:.75rem}.stat-item label{font-size:.65rem}.stat-item span{font-size:.9rem}.controls{flex-wrap:wrap;gap:.5rem;margin-bottom:1rem}button{padding:.5em .8em;font-size:.85em;flex:1 1 auto;min-width:80px}.speed-control{position:relative;bottom:auto;right:auto;width:100%;margin-top:auto;padding:.75rem}.keyboard-help{display:none}}@media(min-width:481px)and (max-width:768px){#ui-layer{padding:1.5rem}.planet-info{max-width:320px;padding:1.5rem}.planet-info h1{font-size:2rem}.speed-control{width:180px}}@media(max-height:700px){.planet-info{max-height:35vh;overflow-y:auto}.controls{margin-bottom:1rem}}