/* 탭 메뉴 스타일 */
.tab-menu {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid #e0e0e0;
}

.tab-button {
    padding: 12px 25px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    color: #666;
    transition: all 0.3s;
}

.tab-button:hover {
    color: #667eea;
    background: #f8f9ff;
}

.tab-button.active {
    color: #667eea;
    border-bottom-color: #667eea;
    background: #f8f9ff;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 버전 상태 표시 */
.version-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.version-status-outdated {
    background: #fee;
    color: #dc3545;
    border: 1px solid #fcc;
}

.version-status-outdated::before {
    content: "🔴 ";
}

.version-status-latest {
    background: #efe;
    color: #28a745;
    border: 1px solid #cfc;
}

.version-status-latest::before {
    content: "🟢 ";
}

.version-status-unknown {
    background: #ffeaa7;
    color: #e17055;
    border: 1px solid #fdcb6e;
}

.version-status-unknown::before {
    content: "🟡 ";
}

/* 버전 비교 결과 카드 */
.comparison-card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.comparison-card h3 {
    margin: 0 0 15px 0;
    color: #333;
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.comparison-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.summary-item {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
}

.summary-item .label {
    font-size: 12px;
    color: #666;
    margin-bottom: 5px;
}

.summary-item .value {
    font-size: 24px;
    font-weight: bold;
    color: #333;
}

.summary-item.outdated .value {
    color: #dc3545;
}

.summary-item.latest .value {
    color: #28a745;
}

.summary-item.unknown .value {
    color: #ffc107;
}

/* 펌웨어 항목 리스트 */
.firmware-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border-bottom: 1px solid #f0f0f0;
}

.firmware-item:last-child {
    border-bottom: none;
}

.firmware-item:hover {
    background: #f8f9fa;
}

.firmware-name {
    font-weight: 600;
    color: #333;
    flex: 1;
}

.firmware-versions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.version-badge {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 13px;
    font-family: 'Courier New', monospace;
}

.version-current {
    background: #e9ecef;
    color: #495057;
}

.version-arrow {
    color: #999;
    font-size: 18px;
}

.version-latest {
    background: #d4edda;
    color: #155724;
    font-weight: 600;
}

.version-recommendation {
    font-size: 12px;
    color: #666;
    margin-left: 10px;
}

/* 중요 업데이트 배지 */
.critical-badge {
    display: inline-block;
    background: #dc3545;
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
    margin-left: 8px;
}

/* 다운로드 링크 */
.download-link {
    color: #667eea;
    text-decoration: none;
    font-size: 12px;
    margin-left: 10px;
}

.download-link:hover {
    text-decoration: underline;
}

/* 버전 관리 테이블 */
.version-table {
    width: 100%;
    border-collapse: collapse;
}

.version-table th {
    background: #f8f9fa;
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: #495057;
    border-bottom: 2px solid #dee2e6;
}

.version-table td {
    padding: 12px;
    border-bottom: 1px solid #dee2e6;
}

.version-table tr:hover {
    background: #f8f9fa;
}

/* 빈 상태 메시지 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #999;
}

.empty-state .icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.empty-state .message {
    font-size: 16px;
    margin-bottom: 20px;
}

/* 필터 그룹 개선 */
.filter-group {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
}

.filter-group label {
    font-weight: 600;
    color: #495057;
}

.filter-group select {
    padding: 8px 12px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    background: white;
}

.count-badge {
    background: #667eea;
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 600;
}

/* 진행률 표시 */
.progress-bar {
    width: 100%;
    height: 8px;
    background: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
    margin: 10px 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s;
}

/* 반응형 */
@media (max-width: 768px) {
    .tab-menu {
        flex-direction: column;
    }
    
    .tab-button {
        border-bottom: none;
        border-left: 3px solid transparent;
    }
    
    .tab-button.active {
        border-left-color: #667eea;
        border-bottom-color: transparent;
    }
    
    .comparison-summary {
        grid-template-columns: 1fr;
    }
    
    .firmware-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .firmware-versions {
        width: 100%;
        justify-content: space-between;
    }
}