.sport-container{background-color:white;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,0.08);padding:25px;width:100%;max-width:500px;margin:0 auto;margin-top:30px;margin-bottom:30px;}h1{text-align:center;color:#2c3e50;font-size:24px;}.input-group{margin-bottom:20px;}label{display:block;margin-bottom:8px;font-weight:bold;color:#555;}input[type="number"],select{width:100%;padding:12px 15px;border:1px solid #ddd;border-radius:8px;font-size:16px;transition:all 0.3s;appearance:none;-webkit-appearance:none;}input[type="number"]:focus,select:focus{border-color:#4a90e2;outline:none;box-shadow:0 0 0 3px rgba(74,144,226,0.1);}select{background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 12px center;background-size:16px;padding-right:36px;}button{background-color:#4a90e2;color:white;border:none;padding:14px 20px;width:100%;border-radius:8px;font-size:16px;cursor:pointer;transition:all 0.3s;font-weight:bold;margin:15px 0 10px;}button:hover{background-color:#3a7bc8;transform:translateY(-1px);box-shadow:0 4px 12px rgba(74,144,226,0.2);}#result{margin-top:25px;padding:20px;border-radius:8px;background-color:#f8fafc;border:1px solid #eaeef2;display:none;}.result-title{font-size:18px;font-weight:bold;margin-bottom:10px;color:#2c3e50;}.calories{font-size:32px;font-weight:bold;margin:10px 0;color:#4a90e2;}.activity-info{margin-top:15px;font-size:14px;color:#666;line-height:1.5;}.activity-list{margin-top:30px;}.activity-list h3{color:#2c3e50;margin-bottom:15px;font-size:16px;border-bottom:1px solid #eee;padding-bottom:8px;}table{width:100%;border-collapse:collapse;font-size:14px;}th,td{padding:10px;text-align:left;border-bottom:1px solid #eee;}th{color:#555;font-weight:bold;}tr:hover{background-color:#f5f7fa;}@media (max-width:480px){h1{font-size:22px;}input[type="number"],select,button{padding:12px;}}