body{margin:0;background:#111;font-family:sans-serif}.container{padding:60px}.row{display:flex;gap:30px;margin-bottom:30px}.card{width:200px;height:120px;background:#333;display:flex;align-items:center;justify-content:center;color:#fff;font-size:24px;border-radius:12px;transition:transform .15s ease,box-shadow .15s ease}.card.focused{outline:4px solid #00bfff;transform:scale(1.05);box-shadow:0 0 20px #00bfffb3}