/**
 * 全站界面主题 v2 — 仅样式，不改变功能
 * 由 theme_assets.php 与 admin.css 一并输出（勿用 @import，浏览器会忽略文件末尾的 @import）
 */

:root {
    --ui-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --ui-bg: #f1f5f9;
    --ui-surface: #ffffff;
    --ui-surface-2: #f8fafc;
    --ui-border: #e2e8f0;
    --ui-border-strong: #cbd5e1;
    --ui-text: #0f172a;
    --ui-text-muted: #64748b;
    --ui-primary: #2563eb;
    --ui-primary-dark: #1d4ed8;
    --ui-primary-light: #dbeafe;
    --ui-accent: #0ea5e9;
    --ui-success: #10b981;
    --ui-success-bg: #ecfdf5;
    --ui-warning: #f59e0b;
    --ui-warning-bg: #fffbeb;
    --ui-danger: #ef4444;
    --ui-danger-bg: #fef2f2;
    --ui-sidebar: #0f172a;
    --ui-sidebar-hover: #1e293b;
    --ui-sidebar-active: #2563eb;
    --ui-radius: 10px;
    --ui-radius-lg: 14px;
    --ui-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
    --ui-shadow-md: 0 4px 14px rgba(15, 23, 42, 0.08);
    --ui-shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.1);
    --ui-sidebar-width: 220px;
}

/* —— 基础 —— */
body {
    font-family: var(--ui-font) !important;
    background: var(--ui-bg) !important;
    color: var(--ui-text) !important;
    -webkit-font-smoothing: antialiased;
}

.admin-layout {
    background: var(--ui-bg) !important;
}

/* —— 侧边栏 —— */
.sidebar {
    width: var(--ui-sidebar-width) !important;
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%) !important;
    border-right: 1px solid rgba(255, 255, 255, 0.06) !important;
    box-shadow: 4px 0 24px rgba(15, 23, 42, 0.12) !important;
}

.sidebar-header,
.sidebar-menu,
.sidebar-footer {
    background: transparent !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
}

.sidebar-header {
    padding: 22px 18px !important;
}

.sidebar-header h2 {
    font-size: 17px !important;
    font-weight: 700 !important;
    letter-spacing: 0.02em;
}

.sidebar-header .user-info {
    color: #94a3b8 !important;
    font-size: 12px !important;
}

.sidebar-menu {
    padding: 12px 10px !important;
}

.sidebar-menu .menu-item {
    border-radius: 8px !important;
    margin: 2px 6px !important;
    padding: 11px 14px !important;
    color: #cbd5e1 !important;
    font-size: 13px !important;
    font-weight: 500 !important;
    width: calc(100% - 12px) !important;
}

.sidebar-menu .menu-item:hover {
    background: var(--ui-sidebar-hover) !important;
    color: #f1f5f9 !important;
}

.sidebar-menu .menu-item.active {
    background: var(--ui-sidebar-active) !important;
    color: #fff !important;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35) !important;
}

.sidebar-menu .menu-item.active::before {
    display: none !important;
}

.sidebar-menu .menu-item i {
    opacity: 0.95;
}

.sidebar-footer {
    padding: 16px 14px !important;
}

.register-btn {
    background: var(--ui-success) !important;
    border-radius: 8px !important;
    font-size: 11px !important;
}

.register-btn:hover {
    background: #059669 !important;
}

/* —— 主内容区 —— */
.main-content {
    margin-left: var(--ui-sidebar-width) !important;
    width: calc(100% - var(--ui-sidebar-width)) !important;
    max-width: calc(100% - var(--ui-sidebar-width)) !important;
    background: var(--ui-bg) !important;
}

.content-header {
    display: block !important;
    background: var(--ui-surface) !important;
    border-bottom: 1px solid var(--ui-border) !important;
    padding: 20px 28px !important;
    margin: 0 !important;
    box-shadow: var(--ui-shadow);
}

.content-header h1 {
    font-size: 22px !important;
    font-weight: 700 !important;
    color: var(--ui-text) !important;
    -webkit-text-fill-color: var(--ui-text) !important;
    background: none !important;
    margin: 0 0 4px !important;
    padding: 0 !important;
}

.content-header .breadcrumb {
    font-size: 13px !important;
    color: var(--ui-text-muted) !important;
    margin: 0 !important;
    padding: 0 !important;
}

.content-body {
    padding: 24px 28px !important;
    background: transparent !important;
}

/* —— 按钮 —— */
.btn {
    border-radius: 8px !important;
    font-weight: 600 !important;
    font-size: 14px !important;
    transition: all 0.2s ease !important;
}

.btn:hover {
    transform: translateY(-1px) !important;
}

.btn-primary,
.form-buttons .btn-primary,
.login-form .form-buttons .btn-primary {
    background: linear-gradient(180deg, var(--ui-primary) 0%, var(--ui-primary-dark) 100%) !important;
    color: #fff !important;
    border: none !important;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.35) !important;
}

.btn-primary:hover,
.form-buttons .btn-primary:hover {
    filter: brightness(1.05) !important;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4) !important;
}

.btn-success {
    background: var(--ui-success) !important;
    color: #fff !important;
    border: none !important;
}

.btn-danger {
    background: var(--ui-danger) !important;
    color: #fff !important;
    border: none !important;
}

.btn-warning {
    background: var(--ui-warning) !important;
    color: #fff !important;
    border: none !important;
}

.btn-info {
    background: var(--ui-accent) !important;
    color: #fff !important;
    border: none !important;
}

.btn-secondary,
.form-buttons .btn-secondary {
    background: var(--ui-surface-2) !important;
    color: var(--ui-text) !important;
    border: 1px solid var(--ui-border-strong) !important;
}

/* 默认描边按钮 → 主色描边 */
.btn:not(.btn-primary):not(.btn-success):not(.btn-danger):not(.btn-warning):not(.btn-info):not(.btn-secondary) {
    background: var(--ui-surface) !important;
    color: var(--ui-primary) !important;
    border: 1px solid var(--ui-primary) !important;
}

.btn:not(.btn-primary):not(.btn-success):not(.btn-danger):not(.btn-warning):not(.btn-info):not(.btn-secondary):hover {
    background: var(--ui-primary-light) !important;
}

/* —— 表单 —— */
.form-group label {
    color: var(--ui-text) !important;
    font-weight: 600 !important;
    font-size: 13px !important;
}

.form-group input,
.form-group select,
.form-group textarea {
    border: 1px solid var(--ui-border) !important;
    border-radius: 8px !important;
    background: var(--ui-surface) !important;
    padding: 11px 14px !important;
    font-size: 14px !important;
    transition: border-color 0.15s, box-shadow 0.15s !important;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--ui-primary) !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12) !important;
    background: var(--ui-surface) !important;
}

/* —— 表格 —— */
.table {
    background: var(--ui-surface) !important;
    border-radius: var(--ui-radius-lg) !important;
    overflow: hidden;
    box-shadow: var(--ui-shadow) !important;
    border: 1px solid var(--ui-border) !important;
}

.table th {
    background: var(--ui-surface-2) !important;
    color: var(--ui-text-muted) !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    text-transform: none !important;
    letter-spacing: 0.02em;
    border-bottom: 2px solid var(--ui-border) !important;
    padding: 12px 14px !important;
}

.table td {
    padding: 12px 14px !important;
    color: var(--ui-text) !important;
    border-bottom: 1px solid var(--ui-border) !important;
    font-size: 13px !important;
}

.table tbody tr:hover {
    background: #f8fafc !important;
}

.table tbody tr:last-child td {
    border-bottom: none !important;
}

/* —— 卡片 —— */
.card {
    background: var(--ui-surface) !important;
    border: 1px solid var(--ui-border) !important;
    border-radius: var(--ui-radius-lg) !important;
    box-shadow: var(--ui-shadow) !important;
    padding: 22px !important;
}

.card-header {
    border-bottom-color: var(--ui-border) !important;
}

.card-title {
    color: var(--ui-text) !important;
    font-size: 16px !important;
}

.stat-card-modern {
    background: var(--ui-surface) !important;
    border: 1px solid var(--ui-border) !important;
    border-radius: var(--ui-radius-lg) !important;
    box-shadow: var(--ui-shadow) !important;
    padding: 24px !important;
}

.stat-card-modern::before {
    background: linear-gradient(90deg, var(--ui-primary), var(--ui-accent)) !important;
    height: 3px !important;
}

.stat-card-modern:hover {
    transform: translateY(-4px) !important;
    box-shadow: var(--ui-shadow-md) !important;
}

.stat-value {
    color: var(--ui-text) !important;
    font-size: 32px !important;
}

.stat-title {
    color: var(--ui-text-muted) !important;
}

.stats-grid {
    gap: 16px !important;
    padding: 0 !important;
    min-height: auto !important;
}

.stat-box {
    border: 1px solid #e2e8f0 !important;
    border-radius: 14px !important;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.08) !important;
    background: #ffffff !important;
}

.stat-box::before {
    content: '' !important;
    display: block !important;
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    height: 4px !important;
    background: linear-gradient(90deg, #2563eb, #0ea5e9) !important;
}

.stat-box:hover {
    transform: translateY(-6px) !important;
    box-shadow: 0 12px 28px rgba(37, 99, 235, 0.15) !important;
    border-color: #93c5fd !important;
}

.stat-value {
    color: #2563eb !important;
    font-size: 32px !important;
}

.stat-title {
    color: #475569 !important;
}

.stat-action {
    color: #2563eb !important;
    font-weight: 600 !important;
}

/* 仪表台会员卡片 */
.member-card {
    background: var(--ui-surface) !important;
    border: 1px solid var(--ui-border) !important;
    border-radius: var(--ui-radius) !important;
    box-shadow: var(--ui-shadow) !important;
}

.member-card-label {
    color: var(--ui-text-muted) !important;
}

.member-card-value {
    color: var(--ui-text) !important;
}

/* —— 提示框 —— */
.alert {
    border-radius: var(--ui-radius) !important;
    border-width: 1px !important;
    font-size: 14px !important;
    padding: 14px 16px !important;
}

.alert-success {
    background: var(--ui-success-bg) !important;
    color: #065f46 !important;
    border-color: #6ee7b7 !important;
}

.alert-error,
.alert-danger {
    background: var(--ui-danger-bg) !important;
    color: #991b1b !important;
    border-color: #fca5a5 !important;
}

.alert-warning {
    background: var(--ui-warning-bg) !important;
    color: #92400e !important;
    border-color: #fcd34d !important;
}

.alert-info {
    background: #eff6ff !important;
    color: #1e40af !important;
    border-color: #93c5fd !important;
}

/* —— 弹窗 —— */
.modal {
    background: rgba(15, 23, 42, 0.45) !important;
    backdrop-filter: blur(4px);
}

.modal-content {
    border-radius: var(--ui-radius-lg) !important;
    border: 1px solid var(--ui-border) !important;
    box-shadow: var(--ui-shadow-lg) !important;
    overflow: hidden;
}

.modal-header {
    background: var(--ui-surface-2) !important;
    border-bottom: 1px solid var(--ui-border) !important;
    padding: 16px 20px !important;
}

.modal-header h3 {
    color: var(--ui-text) !important;
    font-size: 16px !important;
    font-weight: 700 !important;
}

.modal-body {
    padding: 20px !important;
}

/* —— 登录页 —— */
.login-form {
    border-radius: var(--ui-radius-lg) !important;
    box-shadow: var(--ui-shadow-lg) !important;
    border: 1px solid var(--ui-border) !important;
}

.login-form h2 {
    color: var(--ui-text) !important;
}

.header {
    background: var(--ui-surface) !important;
    border: 1px solid var(--ui-border) !important;
    color: var(--ui-primary) !important;
    border-radius: var(--ui-radius-lg) !important;
    box-shadow: var(--ui-shadow) !important;
}

/* —— 分页 —— */
.pagination .page-info {
    color: var(--ui-text-muted) !important;
}

/* —— 会员后台统计块 —— */
.member-stat-box {
    border: 1px solid var(--ui-border) !important;
    border-radius: var(--ui-radius-lg) !important;
    box-shadow: var(--ui-shadow) !important;
}

.member-stat-box.primary .stat-value { color: var(--ui-primary) !important; }
.member-stat-box.success .stat-value { color: var(--ui-success) !important; }
.member-stat-box.warning .stat-value { color: var(--ui-warning) !important; }
.member-stat-box.danger .stat-value { color: var(--ui-danger) !important; }

/* —— 折叠侧边栏 —— */
.sidebar.collapsed {
    width: 72px !important;
}

.sidebar.collapsed + .main-content,
.sidebar.collapsed ~ .main-content {
    margin-left: 72px !important;
    width: calc(100% - 72px) !important;
    max-width: calc(100% - 72px) !important;
}

/* —— 响应式 —— */
@media (max-width: 992px) {
    .sidebar {
        width: 72px !important;
    }
    .sidebar-header h2,
    .sidebar-header .user-info,
    .sidebar-menu .menu-item span,
    .sidebar-footer .user-info {
        display: none !important;
    }
    .main-content {
        margin-left: 72px !important;
        width: calc(100% - 72px) !important;
        max-width: calc(100% - 72px) !important;
    }
    .content-body {
        padding: 16px !important;
    }
}

@media (min-width: 1200px) {
    .main-content {
        margin-left: var(--ui-sidebar-width) !important;
        width: calc(100% - var(--ui-sidebar-width)) !important;
        max-width: calc(100% - var(--ui-sidebar-width)) !important;
    }
    .sidebar {
        width: var(--ui-sidebar-width) !important;
    }
}

/* —— 用户管理页 users.css 补充 —— */
.member-form,
.member-card {
    border: 1px solid var(--ui-border) !important;
    border-radius: var(--ui-radius-lg) !important;
    box-shadow: var(--ui-shadow) !important;
}

#editModal .modal-content {
    border-radius: var(--ui-radius-lg) !important;
    box-shadow: var(--ui-shadow-lg) !important;
}

/* —— 数据库清理等独立页内联组件（保留 class 兼容）—— */
.cleanup-page .content-header {
    display: block !important;
}