:root{--bg-color: #e2e8f0;--track-color: #94a3b8;--path-color: #3b82f6;--accent: #f59e0b;--text: #1e293b}*{box-sizing:border-box}body{margin:0;padding:0;background-color:#111;height:100dvh;display:flex;justify-content:center;align-items:center;overflow:hidden;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;touch-action:none}#ui-layer{position:absolute;top:10px;left:0;width:100%;display:flex;justify-content:space-between;padding:0 20px;z-index:10;color:#fff;font-weight:700;font-size:24px;text-shadow:1px 1px 2px rgba(0,0,0,.8);pointer-events:none}#game-wrapper{position:absolute;width:450px;height:800px;perspective:1000px}#game-container{background-color:#f0fdf4;position:absolute;overflow:hidden;width:450px;height:800px;box-shadow:0 0 20px #00000080;border-radius:12px;transition:transform .8s ease-in-out,opacity .8s ease-in-out}canvas{display:block;width:100%;height:100%}.hidden{display:none!important}#start-screen{position:absolute;top:0;left:0;width:100%;height:100%;background:#111111e6;color:#fff;display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:20}#start-screen h1{font-size:3rem;margin-bottom:10px;text-align:center}#start-screen p{font-size:1.2rem;margin-bottom:30px}#start-screen button#start-btn{padding:15px 30px;font-size:1.5rem;background-color:var(--accent);color:#fff;border:none;border-radius:8px;cursor:pointer;font-weight:700;transition:transform .1s}#start-screen button#start-btn:active{transform:scale(.95)}#tutorial-modal,#game-over-modal{position:absolute;top:0;left:0;width:100%;height:100%;background:#111111f2;color:#fff;display:flex;justify-content:center;align-items:center;z-index:30}#tutorial-modal .modal-content,#game-over-modal .modal-content{background:#1e293b;padding:30px;border-radius:12px;text-align:center;width:80%;border:2px solid #fde047}#tutorial-modal h2,#game-over-modal h2{color:#fde047;margin-top:0}#tutorial-modal p,#game-over-modal p{font-size:1.1rem;line-height:1.4;margin-bottom:15px}#btn-close-tutorial{padding:10px 20px;font-size:1.2rem;background-color:var(--accent);color:#fff;border:none;border-radius:6px;cursor:pointer;font-weight:700;margin-top:15px}