/* 智能下播助手激活码管理后台样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 登录页面 */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-box {
    background: white;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    padding: 40px;
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    color: #2c3e50;
    font-size: 24px;
    margin-bottom: 8px;
}

.login-header p {
    color: #7f8c8d;
    font-size: 14px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #2c3e50;
    font-weight: 500;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-success {
    background: #27ae60;
    color: white;
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.btn-secondary {
    background: #95a5a6;
    color: white;
}

.btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

/* 管理后台 */
.admin-container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.admin-header {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-header h1 {
    font-size: 24px;
    font-weight: 600;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-info span {
    font-size: 14px;
    opacity: 0.9;
}

.logout-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 6px 12px;
    font-size: 12px;
}

.logout-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.admin-nav {
    background: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
    padding: 0 30px;
}

.nav-tabs {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-tab {
    padding: 15px 20px;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
    font-weight: 500;
    color: #6c757d;
}

.nav-tab:hover {
    color: #495057;
    background: rgba(0, 0, 0, 0.05);
}

.nav-tab.active {
    color: #667eea;
    border-bottom-color: #667eea;
    background: white;
}

.admin-content {
    padding: 30px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.stat-card p {
    color: #6c757d;
    font-size: 14px;
    margin: 0;
}

.stat-card.primary h3 { color: #667eea; }
.stat-card.success h3 { color: #27ae60; }
.stat-card.warning h3 { color: #f39c12; }
.stat-card.danger h3 { color: #e74c3c; }

/* 工具栏 */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.toolbar-left,
.toolbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.search-box {
    position: relative;
}

.search-box input {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    width: 200px;
}

.filter-select {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    background: white;
}

/* 生成表单 */
.generate-form {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 15px;
    align-items: end;
}

.form-row .form-group {
    margin: 0;
}

/* 表格 */
.table-container {
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    overflow: hidden;
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
}

.table th,
.table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

.table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #495057;
    font-size: 14px;
}

.table td {
    font-size: 14px;
}

.table tbody tr:hover {
    background: #f8f9fa;
}

/* 状态标签 */
.status-badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    text-align: center;
    min-width: 60px;
    display: inline-block;
}

.status-badge.unused {
    background: #d4edda;
    color: #155724;
}

.status-badge.used {
    background: #f8d7da;
    color: #721c24;
}

.status-badge.active {
    background: #d1ecf1;
    color: #0c5460;
}

.status-badge.expired {
    background: #f5c6cb;
    color: #721c24;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
    gap: 10px;
}

.pagination button {
    padding: 8px 12px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}

.pagination button:hover:not(:disabled) {
    background: #f8f9fa;
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination .current-page {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

/* 消息提示 */
.message {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 14px;
}

.message.success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.message.error {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.message.info {
    background: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
}

/* 加载状态 */
.loading {
    text-align: center;
    padding: 40px;
    color: #6c757d;
}

.loading::after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #dee2e6;
    border-top: 2px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 10px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .admin-header {
        padding: 15px 20px;
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .admin-content {
        padding: 20px;
    }
    
    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .toolbar-left,
    .toolbar-right {
        justify-content: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .search-box input {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-tabs {
        flex-wrap: wrap;
    }
    
    .table-container {
        overflow-x: auto;
    }
    
    .table {
        min-width: 600px;
    }
    
    .password-form {
        max-width: 100%;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}

/* 账号设置页面 */
.profile-section {
    background: white;
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.profile-section h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.password-form {
    max-width: 500px;
}

.password-form .form-group {
    margin-bottom: 20px;
}

.password-form .form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: #555;
}

.password-form .form-control {
    width: 100%;
    padding: 12px;
    border: 2px solid #e1e8ed;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.password-form .form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.password-form small {
    display: block;
    margin-top: 4px;
    color: #6c757d;
    font-size: 12px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-item label {
    font-weight: 600;
    color: #666;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-item span {
    font-size: 15px;
    color: #2c3e50;
    font-weight: 500;
}

/* 深色主题支持 */
@media (prefers-color-scheme: dark) {
    body {
        background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
    }
    
    .admin-container {
        background: #2c3e50;
        color: #ecf0f1;
    }
    
    .admin-content {
        background: #34495e;
    }
    
    .form-control {
        background: #34495e;
        border-color: #4a6741;
        color: #ecf0f1;
    }
    
    .table th {
        background: #2c3e50;
        color: #ecf0f1;
    }
    
    .table td {
        color: #ecf0f1;
        border-bottom-color: #4a6741;
    }
}