/* ============================================
   宸赢工具 - 后台管理现代化样式
   ============================================ */

:root {
    --primary: #1976D2;
    --primary-light: #E3F2FD;
    --primary-dark: #1565C0;
    --success: #388E3C;
    --success-light: #E8F5E9;
    --warning: #F57C00;
    --warning-light: #FFF3E0;
    --danger: #D32F2F;
    --danger-light: #FFEBEE;
    --info: #0288D1;
    --info-light: #E1F5FE;
    --purple: #7B1FA2;
    --purple-light: #F3E5F5;

    --bg-body: #F0F2F5;
    --bg-card: #FFFFFF;
    --bg-sidebar: #FFFFFF;
    --bg-header: #FFFFFF;

    --border-color: #E8EAED;
    --border-light: #F1F3F4;

    --text-primary: #202124;
    --text-secondary: #5F6368;
    --text-muted: #9AA0A6;

    --sidebar-width: 240px;
    --header-height: 56px;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.1);

    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

/* ---- Reset ---- */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    background-color: var(--bg-body);
    line-height: 1.6;
}

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

a:hover {
    color: var(--primary-dark);
}

/* ============================================
   顶部导航栏
   ============================================ */
.modern-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.modern-header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
}

.modern-header-logo i {
    font-size: 20px;
}

.modern-header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.modern-header-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: all 0.2s;
}

.modern-header-icon:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.modern-header-user {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 13px;
}

.modern-header-user i {
    font-size: 22px;
    color: var(--primary);
}

/* ============================================
   侧边栏
   ============================================ */
.modern-sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    z-index: 999;
}

.modern-sidebar-menu {
    padding: 12px 0;
}

.modern-menu-section {
    margin-bottom: 4px;
}

.modern-menu-section-title {
    padding: 12px 20px 6px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.modern-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--text-secondary);
    font-size: 14px;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}

.modern-menu-item:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.modern-menu-item.active {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 500;
    border-left-color: var(--primary);
}

.modern-menu-item i {
    width: 20px;
    text-align: center;
    font-size: 15px;
}

/* ============================================
   主内容区
   ============================================ */
.modern-main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    padding: 24px;
    min-height: calc(100vh - var(--header-height));
}

/* ---- 页面标题 + 面包屑 ---- */
.modern-page-header {
    margin-bottom: 24px;
}

.modern-page-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px 0;
}

.modern-page-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
}

.modern-page-breadcrumb a {
    color: var(--text-muted);
}

.modern-page-breadcrumb a:hover {
    color: var(--primary);
}

.modern-page-breadcrumb i {
    font-size: 10px;
}

/* ============================================
   卡片
   ============================================ */
.modern-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 20px;
    margin-bottom: 20px;
}

.modern-card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 16px 0;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-light);
}

/* ============================================
   统计卡片网格
   ============================================ */
.modern-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

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

@media (max-width: 576px) {
    .modern-stats-grid {
        grid-template-columns: 1fr;
    }
}

.modern-stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 16px;
}

.modern-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.modern-stat-icon.blue {
    background: var(--primary-light);
    color: var(--primary);
}

.modern-stat-icon.green {
    background: var(--success-light);
    color: var(--success);
}

.modern-stat-icon.orange {
    background: var(--warning-light);
    color: var(--warning);
}

.modern-stat-icon.purple {
    background: var(--purple-light);
    color: var(--purple);
}

.modern-stat-icon.red {
    background: var(--danger-light);
    color: var(--danger);
}

.modern-stat-icon.cyan {
    background: var(--info-light);
    color: var(--info);
}

.modern-stat-info h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.2;
}

.modern-stat-info p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 2px 0 0 0;
}

/* ============================================
   表格
   ============================================ */
.modern-table {
    width: 100%;
    border-collapse: collapse;
}

.modern-table th {
    background: #F8F9FA;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--text-secondary);
    padding: 12px 16px;
    border-bottom: 2px solid var(--border-color);
    text-align: left;
    white-space: nowrap;
}

.modern-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
    font-size: 13px;
    vertical-align: middle;
}

.modern-table tbody tr:hover {
    background: #F8F9FA;
}

.modern-table-empty {
    text-align: center;
    padding: 40px 16px;
    color: var(--text-muted);
}

.modern-table-empty i {
    font-size: 36px;
    display: block;
    margin-bottom: 8px;
    opacity: 0.4;
}

/* ============================================
   状态标签
   ============================================ */
.modern-status {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    line-height: 1.4;
}

.modern-status.success {
    background: var(--success-light);
    color: var(--success);
}

.modern-status.warning {
    background: var(--warning-light);
    color: var(--warning);
}

.modern-status.danger {
    background: var(--danger-light);
    color: var(--danger);
}

.modern-status.info {
    background: var(--info-light);
    color: var(--info);
}

.modern-status.secondary {
    background: #F1F3F4;
    color: var(--text-secondary);
}

.modern-status.purple {
    background: var(--purple-light);
    color: var(--purple);
}

.modern-status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
}

.modern-status.success .modern-status-dot { background: var(--success); }
.modern-status.warning .modern-status-dot { background: var(--warning); }
.modern-status.danger .modern-status-dot { background: var(--danger); }
.modern-status.info .modern-status-dot { background: var(--info); }
.modern-status.secondary .modern-status-dot { background: var(--text-secondary); }

/* ============================================
   按钮
   ============================================ */
.modern-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    line-height: 1.4;
    white-space: nowrap;
}

.modern-btn i {
    font-size: 13px;
}

.modern-btn:hover {
    opacity: 0.85;
}

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

.modern-btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: #fff;
    opacity: 1;
}

.modern-btn-success {
    background: var(--success);
    color: #fff;
    border-color: var(--success);
}

.modern-btn-success:hover {
    opacity: 1;
}

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

.modern-btn-danger:hover {
    opacity: 1;
}

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

.modern-btn-warning:hover {
    opacity: 1;
}

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

.modern-btn-outline:hover {
    background: #F8F9FA;
    border-color: #DADCE0;
    opacity: 1;
}

.modern-btn-outline-primary {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.modern-btn-outline-primary:hover {
    background: var(--primary-light);
    opacity: 1;
}

.modern-btn-outline-success {
    background: transparent;
    color: var(--success);
    border-color: var(--success);
}

.modern-btn-outline-success:hover {
    background: var(--success-light);
    opacity: 1;
}

.modern-btn-outline-danger {
    background: transparent;
    color: var(--danger);
    border-color: var(--danger);
}

.modern-btn-outline-danger:hover {
    background: var(--danger-light);
    opacity: 1;
}

.modern-btn-outline-warning {
    background: transparent;
    color: var(--warning);
    border-color: var(--warning);
}

.modern-btn-outline-warning:hover {
    background: var(--warning-light);
    opacity: 1;
}

.modern-btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

.modern-btn-group {
    display: inline-flex;
    gap: 0;
}

.modern-btn-group .modern-btn {
    border-radius: 0;
    margin-left: -1px;
}

.modern-btn-group .modern-btn:first-child {
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    margin-left: 0;
}

.modern-btn-group .modern-btn:last-child {
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.modern-btn-group .modern-btn.active {
    color: #fff;
}

/* ============================================
   表单
   ============================================ */
.modern-form-group {
    margin-bottom: 16px;
}

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

.modern-form-label .required {
    color: var(--danger);
}

.modern-form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-primary);
    background: #fff;
    transition: border-color 0.15s;
    line-height: 1.5;
}

.modern-form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.12);
}

.modern-form-control::placeholder {
    color: var(--text-muted);
}

select.modern-form-control {
    appearance: auto;
}

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

.modern-form-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

.modern-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 576px) {
    .modern-form-row {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   搜索栏
   ============================================ */
.modern-search-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.modern-search-input {
    position: relative;
    flex: 1;
    max-width: 320px;
}

.modern-search-input i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 14px;
}

.modern-search-input input {
    width: 100%;
    padding: 8px 12px 8px 36px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-primary);
    background: #fff;
    transition: border-color 0.15s;
}

.modern-search-input input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.12);
}

.modern-search-actions {
    display: flex;
    gap: 8px;
}

/* ============================================
   页面顶栏（标题 + 操作按钮）
   ============================================ */
.modern-top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.modern-top-bar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ============================================
   分页
   ============================================ */
.modern-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

.modern-pagination a,
.modern-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    padding: 0 8px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-secondary);
    background: #fff;
    transition: all 0.15s;
}

.modern-pagination a:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
}

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

/* ============================================
   Flash 消息
   ============================================ */
.modern-flash {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.modern-flash.success {
    background: var(--success-light);
    color: var(--success);
    border: 1px solid #C8E6C9;
}

.modern-flash.error {
    background: var(--danger-light);
    color: var(--danger);
    border: 1px solid #FFCDD2;
}

.modern-flash-close {
    margin-left: auto;
    cursor: pointer;
    opacity: 0.7;
    font-size: 16px;
}

.modern-flash-close:hover {
    opacity: 1;
}

/* ============================================
   Modal（Bootstrap 兼容覆盖）
   ============================================ */
.modal-content {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.modal-header {
    border-bottom: 1px solid var(--border-light);
    padding: 16px 20px;
}

.modal-header .modal-title {
    font-size: 16px;
    font-weight: 600;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    border-top: 1px solid var(--border-light);
    padding: 12px 20px;
}

/* ============================================
   快捷操作按钮网格
   ============================================ */
.modern-quick-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.modern-quick-action {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 13px;
    transition: all 0.15s;
}

.modern-quick-action:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
}

.modern-quick-action i {
    width: 20px;
    text-align: center;
    font-size: 15px;
}

/* ============================================
   通用辅助
   ============================================ */
.text-muted {
    color: var(--text-muted) !important;
}

.mb-0 { margin-bottom: 0 !important; }
.mb-2 { margin-bottom: 8px !important; }
.mb-3 { margin-bottom: 12px !important; }
.mb-4 { margin-bottom: 16px !important; }
.mt-3 { margin-top: 12px !important; }
.mt-4 { margin-top: 16px !important; }

.text-right {
    text-align: right;
}

.text-center {
    text-align: center;
}