/* ========================================
   管理后台样式
   ======================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --text: #1e293b;
    --text-light: #64748b;
    --bg: #f1f5f9;
    --card-bg: #ffffff;
    --danger: #ef4444;
    --success: #22c55e;
    --warning: #f59e0b;
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --radius: 10px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

/* 登录页 */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
}

.login-box {
    background: var(--card-bg);
    padding: 40px 36px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 400px;
    margin: 20px;
}

.login-box h1 {
    text-align: center;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 4px;
}

.login-box .subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 0.85rem;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.88rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text);
}

.form-group input {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: border-color 0.2s;
    outline: none;
}

.form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.login-footer {
    text-align: center;
    margin-top: 20px;
}

.login-footer a {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.88rem;
}

/* 后台导航 */
.admin-nav {
    background: var(--gradient);
    color: #fff;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
    box-shadow: var(--shadow);
}

.nav-brand {
    font-weight: 600;
    font-size: 1rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 300px;
}

.nav-links {
    display: flex;
    gap: 4px;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 0.88rem;
    transition: background 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.nav-links a.logout {
    color: #fde68a;
}

.admin-main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 16px;
}

.admin-footer {
    text-align: center;
    padding: 16px;
    color: var(--text-light);
    font-size: 0.82rem;
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 9px 18px;
    border: none;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient);
    color: #fff;
}

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

.btn-secondary {
    background: #e2e8f0;
    color: var(--text);
}

.btn-warning {
    background: var(--warning);
    color: #fff;
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-block {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
}

/* 提示框 */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 4px;
}

/* 面板 */
.panel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.panel {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    margin-bottom: 16px;
}

.panel h3 {
    font-size: 1rem;
    margin-bottom: 14px;
    color: var(--text);
    padding-bottom: 8px;
    border-bottom: 1px solid #e2e8f0;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
    flex-wrap: wrap;
    gap: 8px;
}

.panel-header h3 {
    margin-bottom: 0;
    border: none;
    padding: 0;
}

/* 表格 */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.data-table th,
.data-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid #f1f5f9;
}

.data-table th {
    background: #f8fafc;
    font-weight: 600;
    color: var(--text-light);
}

.data-table tr:hover td {
    background: #fafbfc;
}

.data-table .empty {
    text-align: center;
    color: var(--text-light);
    padding: 24px;
}

.truncate {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.78rem;
}

.badge.success {
    background: #dcfce7;
    color: #166534;
}

.badge.error {
    background: #fee2e2;
    color: #991b1b;
}

/* 分页 */
.pagination {
    display: flex;
    gap: 4px;
    justify-content: center;
    margin-top: 16px;
    flex-wrap: wrap;
}

.pagination a {
    padding: 6px 12px;
    border-radius: 6px;
    text-decoration: none;
    color: var(--text);
    font-size: 0.85rem;
    background: #f1f5f9;
}

.pagination a.active {
    background: var(--primary);
    color: #fff;
}

/* 操作按钮 */
.action-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.reset-ip-form {
    display: flex;
    gap: 8px;
}

.reset-ip-form input {
    flex: 1;
    padding: 9px 12px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.88rem;
}

/* 筛选 Tab */
.filter-tabs {
    display: flex;
    gap: 4px;
}

.filter-tabs a {
    padding: 4px 12px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.82rem;
    color: var(--text-light);
    background: #f1f5f9;
}

.filter-tabs a.active {
    background: var(--primary);
    color: #fff;
}

/* 日志查看器 */
.log-viewer {
    max-height: 300px;
    overflow-y: auto;
    background: #1e293b;
    border-radius: 8px;
    padding: 12px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.78rem;
}

.log-line {
    color: #e2e8f0;
    padding: 2px 0;
    word-break: break-all;
}

.log-viewer .empty {
    color: #94a3b8;
    text-align: center;
    padding: 20px;
}

/* 配置表单 */
.config-form .form-row {
    margin-bottom: 18px;
}

.config-form label {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
    font-size: 0.9rem;
}

.config-form input[type="number"],
.config-form input[type="time"] {
    padding: 9px 12px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.9rem;
    width: 200px;
}

.config-form .hint {
    display: block;
    font-size: 0.78rem;
    color: var(--text-light);
    margin-top: 4px;
}

.config-form .inline {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.checkbox-row label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.form-actions {
    margin-top: 24px;
}

.hint-text {
    color: var(--text-light);
    font-size: 0.88rem;
    margin-bottom: 12px;
}

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

.info-table td {
    padding: 8px 12px;
    border-bottom: 1px solid #f1f5f9;
    font-size: 0.88rem;
}

.info-table td:first-child {
    width: 120px;
    color: var(--text-light);
}

.code-block {
    background: #1e293b;
    color: #e2e8f0;
    padding: 14px;
    border-radius: 8px;
    font-size: 0.82rem;
    overflow-x: auto;
    margin: 10px 0;
}

code {
    background: #f1f5f9;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85rem;
}

/* 响应式 */
@media (max-width: 768px) {
    .admin-nav {
        flex-direction: column;
        height: auto;
        padding: 12px 16px;
        gap: 8px;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .reset-ip-form {
        flex-direction: column;
    }
}