/* ===========================
   Global Styles & Variables
   =========================== */

:root {
    /* Color Palette */
    --color-dark-blue: #1e2938;
    --color-primary-blue: #4A90E2;
    --color-light-blue: #e8f4fd;
    --color-success: #5cb85c;
    --color-warning: #f0ad4e;
    --color-danger: #d9534f;
    --color-info: #5bc0de;

    /* Neutral Colors */
    --color-background: #f5f7fa;
    --color-white: #ffffff;
    --color-light-gray: #e9ecef;
    --color-medium-gray: #6c757d;
    --color-dark-gray: #343a40;
    --color-text: #2c3e50;
    --color-text-light: #6c757d;

    /* Sidebar */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 60px;

    /* Header */
    --header-height: 60px;

    /* Right Panel */
    --right-panel-width: 360px;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* ===========================
   Reset & Base Styles
   =========================== */

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

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ===========================
   Layout Containers
   =========================== */

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.content-wrapper {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.main-content.sidebar-collapsed {
    /* No longer needed as sidebar is in content-wrapper */
}

/* ===========================
   Top Header - Based on 页面4.png
   =========================== */

.top-header {
    height: var(--header-height);
    background: var(--color-white);
    border-bottom: 1px solid #e0e4e8;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    flex-shrink: 0;
}

/* Header Brand Section */
.header-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 700;
    color: #2c3e50;
}

.brand-logo i {
    font-size: 24px;
}

.brand-name {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    letter-spacing: 0.5px;
}

.home-btn {
    margin-left: var(--spacing-sm);
    color: var(--color-medium-gray);
}

.home-btn:hover {
    color: var(--color-primary-blue);
}

.current-service {
    margin-left: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 1px solid var(--color-light-gray);
}

.current-service span {
    font-size: 16px;
    font-weight: 600;
    color: #e63946;
}

/* Header Actions Section */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-search {
    position: relative;
    display: flex;
    align-items: center;
}

.header-search i {
    position: absolute;
    left: 12px;
    color: var(--color-medium-gray);
    font-size: 14px;
}

.header-search input {
    padding: 8px 12px 8px 36px;
    border: 1px solid var(--color-light-gray);
    border-radius: 20px;
    outline: none;
    width: 240px;
    font-size: 13px;
    transition: all var(--transition-fast);
    background: #f8f9fa;
}

.header-search input:focus {
    border-color: var(--color-primary-blue);
    background: white;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
    width: 280px;
}

.header-search input::placeholder {
    color: #adb5bd;
}

.header-actions .btn-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6c757d;
    font-size: 18px;
    transition: all var(--transition-fast);
    position: relative;
}

.header-actions .btn-icon:hover {
    background: #f1f3f5;
    color: var(--color-primary-blue);
}

.notification-btn {
    position: relative;
}

.notification-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: #e63946;
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
    min-width: 18px;
    text-align: center;
}

.header-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: transform var(--transition-fast);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.header-user-avatar:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* Homepage Link Bar */
.homepage-bar {
    background: white;
    padding: 10px var(--spacing-lg);
    border-bottom: 1px solid #e0e4e8;
    flex-shrink: 0;
}

.homepage-link {
    color: #e63946;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition-fast);
}

.homepage-link:hover {
    color: #d62828;
}

.homepage-link i {
    font-size: 12px;
}

/* ===========================
   Tab Bar - Navigation Tabs
   =========================== */

.tab-bar {
    background: white;
    border-bottom: 1px solid #e0e4e8;
    flex-shrink: 0;
    overflow-x: auto;
    overflow-y: hidden;
}

.tab-list {
    display: flex;
    align-items: flex-end;
    min-height: 40px;
    padding: 0 var(--spacing-md);
    gap: 4px;
}

.tab-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: #f5f7fa;
    border: 1px solid #e0e4e8;
    border-bottom: none;
    border-radius: 6px 6px 0 0;
    color: #6c757d;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    position: relative;
    margin-bottom: -1px;
}

.tab-item:hover {
    background: #e9ecef;
    color: #2c3e50;
}

.tab-item.active {
    background: white;
    color: #2c3e50;
    border-color: #e0e4e8;
    border-bottom: 1px solid white;
    font-weight: 600;
}

.tab-item i {
    font-size: 12px;
}

.tab-item .tab-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    margin-left: 4px;
    opacity: 0.6;
    transition: all var(--transition-fast);
}

.tab-item .tab-close:hover {
    background: rgba(0, 0, 0, 0.1);
    opacity: 1;
}

.tab-item.active .tab-close:hover {
    background: #f8d7da;
    color: var(--color-danger);
}

/* Scrollbar for tab bar */
.tab-bar::-webkit-scrollbar {
    height: 4px;
}

.tab-bar::-webkit-scrollbar-track {
    background: #f5f7fa;
}

.tab-bar::-webkit-scrollbar-thumb {
    background: #d4d6d9;
    border-radius: 2px;
}

.tab-bar::-webkit-scrollbar-thumb:hover {
    background: #adb5bd;
}

/* Page Banner - Hidden */
.page-banner {
    display: none;
}

.homepage-breadcrumb {
    display: none;
}

/* ===========================
   Page Content
   =========================== */

.page-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

/* ===========================
   Right Panel
   =========================== */

.right-panel {
    width: var(--right-panel-width);
    background: var(--color-white);
    border-left: 1px solid var(--color-light-gray);
    overflow-y: auto;
    display: none;
    flex-direction: column;
}

.right-panel.active {
    display: flex;
}

/* ===========================
   Common Components
   =========================== */

/* Buttons */
.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.btn-primary {
    background: var(--color-primary-blue);
    color: white;
}

.btn-primary:hover {
    background: #3a7bc8;
}

.btn-success {
    background: var(--color-success);
    color: white;
}

.btn-success:hover {
    background: #4cae4c;
}

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

.btn-danger:hover {
    background: #c9302c;
}

.btn-secondary {
    background: var(--color-light-gray);
    color: var(--color-dark-gray);
}

.btn-secondary:hover {
    background: #d4d6d9;
}

.btn-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-medium-gray);
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--color-light-gray);
    color: var(--color-dark-gray);
}

/* Cards */
.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-light-gray);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-dark-gray);
}

.card-body {
    /* Content area */
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.badge-primary {
    background: var(--color-light-blue);
    color: var(--color-primary-blue);
}

.badge-success {
    background: #d4edda;
    color: var(--color-success);
}

.badge-warning {
    background: #fff3cd;
    color: #856404;
}

.badge-danger {
    background: #f8d7da;
    color: var(--color-danger);
}

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

.badge-secondary {
    background: var(--color-light-gray);
    color: var(--color-medium-gray);
}

/* Status Indicators */
.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: var(--spacing-xs);
}

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

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

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

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

/* Loading Spinner */
.spinner {
    border: 3px solid var(--color-light-gray);
    border-top: 3px solid var(--color-primary-blue);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    color: var(--color-text-light);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state p {
    font-size: 16px;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

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

.text-muted {
    color: var(--color-text-light);
}

.text-primary {
    color: var(--color-primary-blue);
}

.text-success {
    color: var(--color-success);
}

.text-warning {
    color: var(--color-warning);
}

.text-danger {
    color: var(--color-danger);
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }

.flex {
    display: flex;
}

.flex-column {
    flex-direction: column;
}

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

.justify-between {
    justify-content: space-between;
}

.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }

.hidden {
    display: none !important;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-light-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--color-medium-gray);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-dark-gray);
}

/* Responsive */
@media (max-width: 1366px) {
    .right-panel {
        width: 300px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .right-panel {
        display: none !important;
    }
}