:root{--primary-color: #ffffff;--bg-color: #000000;--accent-color: #00ffff}*{margin:0;padding:0;box-sizing:border-box}body{overflow:hidden;background-color:var(--bg-color);font-family:Inter,sans-serif;color:var(--primary-color)}#app{position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:1}#ui-container{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:2}#activate-btn{pointer-events:auto;position:absolute;bottom:40px;left:40px;padding:1rem 2rem;font-size:1.2rem;font-weight:700;letter-spacing:.1em;color:var(--primary-color);background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:50px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);cursor:pointer;transition:all .3s ease;text-transform:uppercase}#activate-btn:hover{background:#fff3;border-color:var(--accent-color);box-shadow:0 0 20px #00ffff4d;transform:scale(1.05)}#activate-btn:active{transform:scale(.95)}#shape-sidebar{pointer-events:auto;position:absolute;top:50%;right:40px;transform:translateY(-50%);display:flex;flex-direction:column;gap:15px}.shape-item{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);padding:12px 24px;border-radius:12px;color:#ffffffb3;cursor:pointer;transition:all .3s ease;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);text-transform:capitalize;font-size:.9rem;letter-spacing:.05em;text-align:right}.shape-item:hover{background:#ffffff26;color:var(--primary-color);transform:translate(-5px);border-color:#ffffff4d}.shape-item.active{background:#00ffff26;border-color:var(--accent-color);color:var(--accent-color);box-shadow:0 0 15px #0ff3}#fullscreen-btn{pointer-events:auto;position:absolute;top:20px;right:20px;background:none;border:none;color:#ffffff80;cursor:pointer;transition:color .3s ease;padding:8px}#fullscreen-btn:hover{color:var(--primary-color)}.lil-gui.root{position:absolute;top:20px;left:20px;z-index:10}