/* ==========================================
   炽禾互娱 - 直播管理后台样式
   ========================================== */

/* 基础重置 */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #dbeafe;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --danger-light: #fef2f2;
    --success-light: #ecfdf5;
    --warning-light: #fffbeb;
    --info: #6366f1;
    --bg: #f1f5f9;
    --bg-card: #ffffff;
    --text: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --radius: 8px;
    --radius-sm: 4px;
    --sidebar-w: 240px;
    --topbar-h: 56px;
    --transition: 0.2s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 14px;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* 登录页面 */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1e3a5f 0%, #2d5a87 30%, #3b82f6 70%, #1e3a5f 100%);
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-box {
    background: #fff;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

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

.login-logo {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    margin-bottom: 12px;
}

.login-header h1 {
    font-size: 22px;
    color: var(--text);
    margin-bottom: 4px;
}

.login-header p {
    font-size: 13px;
    color: var(--text-muted);
}

.login-form .form-group { margin-bottom: 18px; }
.login-form label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-secondary);
}

.captcha-row {
    display: flex;
    gap: 10px;
    align-items: center;
}

.captcha-row .form-input { flex: 1; }

.captcha-img {
    height: 40px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 1px solid var(--border);
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.8;
}

/* 管理布局 */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
    width: var(--sidebar-w);
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
    color: #e2e8f0;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform var(--transition);
    overflow-y: auto;
}

.sidebar-header {
    padding: 20px 18px;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar-logo {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    margin-bottom: 8px;
}

.sidebar-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
}

.sidebar-header small {
    font-size: 11px;
    color: #94a3b8;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 11px 24px;
    color: #94a3b8;
    font-size: 14px;
    transition: all var(--transition);
    border-left: 3px solid transparent;
    gap: 10px;
}

.nav-item:hover {
    color: #e2e8f0;
    background: rgba(255,255,255,0.05);
}

.nav-item.active {
    color: #fff;
    background: rgba(59,130,246,0.15);
    border-left-color: #3b82f6;
}

.nav-icon { font-size: 16px; width: 20px; }

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid rgba(255,255,255,0.08);
    text-align: center;
}

.version {
    font-size: 11px;
    color: #64748b;
}

/* 主内容区 */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-w);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* 顶部栏 */
.topbar {
    height: var(--topbar-h);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 50;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 4px 8px;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-left: auto;
}

.topbar-user {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 页面内容区 */
.page-content {
    flex: 1;
    padding: 24px;
}

/* 页面标题 */
.page-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 4px;
}

.page-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.stat-icon.blue { background: #dbeafe; color: #3b82f6; }
.stat-icon.green { background: #d1fae5; color: #10b981; }
.stat-icon.orange { background: #fef3c7; color: #f59e0b; }
.stat-icon.purple { background: #ede9fe; color: #8b5cf6; }

.stat-body { flex: 1; }

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.2;
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* 卡片 */
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h3 {
    font-size: 15px;
    font-weight: 600;
}

.card-body { padding: 20px; }

.card-body.no-padding { padding: 0; }

/* 表格 */
.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

thead {
    background: #f8fafc;
}

th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text);
}

tr:hover { background: #f8fafc; }

/* 徽章 */
.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.badge-success { background: var(--success-light); color: #059669; }
.badge-warning { background: var(--warning-light); color: #d97706; }
.badge-danger { background: var(--danger-light); color: #dc2626; }
.badge-info { background: var(--primary-light); color: #2563eb; }
.badge-default { background: #f1f5f9; color: #64748b; }

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition);
    white-space: nowrap;
    gap: 6px;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.btn-primary:hover { background: var(--primary-dark); color: #fff; }

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border);
}
.btn-outline:hover { background: var(--bg); }

.btn-danger {
    background: var(--danger);
    color: #fff;
}
.btn-danger:hover { background: #dc2626; color: #fff; }

.btn-success {
    background: var(--success);
    color: #fff;
}
.btn-success:hover { background: #059669; color: #fff; }

.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-block { width: 100%; }
.btn-link { background: none; border: none; color: var(--primary); cursor: pointer; padding: 0; font-size: 13px; }
.btn-link:hover { color: var(--primary-dark); text-decoration: underline; }

/* 表单 */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; color: var(--text-secondary); }

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text);
    background: #fff;
    transition: border-color var(--transition);
    font-family: inherit;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

.form-select { cursor: pointer; }

.form-textarea {
    min-height: 80px;
    resize: vertical;
}

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

.form-inline .form-group { margin-bottom: 0; }
.form-inline .form-input { width: auto; min-width: 180px; }

/* 提示消息 */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 16px;
}

.alert-error {
    background: var(--danger-light);
    color: #dc2626;
    border: 1px solid #fecaca;
}

.alert-warning {
    background: var(--warning-light);
    color: #d97706;
    border: 1px solid #fde68a;
}

.alert-success {
    background: var(--success-light);
    color: #059669;
    border: 1px solid #a7f3d0;
}

.alert-info {
    background: var(--primary-light);
    color: #2563eb;
    border: 1px solid #bfdbfe;
}

/* 直播监控网格 */
.live-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 16px;
}

.live-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: box-shadow var(--transition);
}

.live-card:hover { box-shadow: var(--shadow-md); }

.live-card-header {
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-light);
}

.live-card-header .live-username { font-weight: 600; font-size: 14px; }

.live-player {
    position: relative;
    background: #000;
    aspect-ratio: 16 / 9;
}

.live-player video {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.live-player .live-offline {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
    font-size: 15px;
    background: #1e293b;
}

.live-card-footer {
    padding: 10px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}

.live-status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 6px;
}

.live-status-dot.live { background: var(--danger); animation: pulse 2s infinite; }
.live-status-dot.offline { background: var(--text-muted); }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* 弹窗 */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-overlay.show { display: flex; }

.modal {
    background: #fff;
    border-radius: 12px;
    width: 90%;
    max-width: 520px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 { font-size: 16px; }

.modal-close {
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--text-muted);
    padding: 0;
    line-height: 1;
}

.modal-body { padding: 20px; }
.modal-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* 加载指示器 */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}

.spinner {
    display: inline-block;
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.5;
}

.empty-state p { font-size: 14px; }

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    padding: 16px;
}

.pagination .page-btn {
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: #fff;
    cursor: pointer;
    font-size: 13px;
    color: var(--text);
    transition: all var(--transition);
}

.pagination .page-btn:hover { background: var(--bg); }

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

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

.pagination .page-info {
    font-size: 13px;
    color: var(--text-muted);
}

/* 页脚 */
.admin-footer {
    text-align: center;
    padding: 16px;
    font-size: 12px;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    background: var(--bg-card);
}

/* 弹性列 */
.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 10px;
}
.toolbar-left { display: flex; gap: 10px; align-items: center; }
.toolbar-right { display: flex; gap: 10px; align-items: center; }

/* 响应式 */
@media (max-width: 992px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .menu-toggle { display: block; }
    
    .stats-grid { grid-template-columns: 1fr; }
    
    .live-grid {
        grid-template-columns: 1fr;
    }
    
    .toolbar { flex-direction: column; align-items: flex-start; }
}

/* 标签页 */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: 20px;
    gap: 0;
}

.tab-btn {
    padding: 10px 20px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-muted);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition);
}

.tab-btn:hover { color: var(--text); }

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    font-weight: 500;
}

/* 用户详情行 */
.detail-row {
    display: flex;
    padding: 8px 0;
    font-size: 13px;
    border-bottom: 1px solid var(--border-light);
}

.detail-label {
    width: 100px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.detail-value { flex: 1; color: var(--text); }

/* 用户卡片网格 */
.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
}