/* ========================================
   Expert Manager - Modern Design System
   Color Palette: Earth Tones + Sage
   ======================================== */

:root {
    /* Primary - Terracotta */
    --primary: #C4654A;
    --primary-light: #D4836B;
    --primary-dark: #A85239;

    /* Accent - Sage Green */
    --accent: #8B9A6F;
    --accent-light: #A3B188;
    --accent-dark: #6B7A52;

    /* Neutrals - Warm Grays */
    --bg-primary: #FAF9F7;
    --bg-secondary: #F3F1ED;
    --bg-tertiary: #E8E4DD;

    --surface: #FFFFFF;
    --surface-elevated: #FFFFFF;

    --text-primary: #2C2825;
    --text-secondary: #5C5652;
    --text-tertiary: #8C8680;
    --text-inverse: #FAF9F7;

    /* Borders */
    --border-light: #E8E4DD;
    --border-medium: #D4CFC7;

    /* Status Colors */
    --success: #6B8F5C;
    --warning: #C9A227;
    --error: #B85450;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(44, 40, 37, 0.04);
    --shadow-md: 0 4px 12px rgba(44, 40, 37, 0.06);
    --shadow-lg: 0 8px 24px rgba(44, 40, 37, 0.08);

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    line-height: 1.3;
}

/* ========================================
   Header
   ======================================== */
.header {
    background: var(--surface);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-md) var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--text-inverse);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 20px;
}

.logo-text {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 20px;
    color: var(--text-primary);
}

.sync-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sync-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
}

.sync-btn:hover .sync-icon {
    animation: spin 1s linear infinite;
}

.sync-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.sync-icon {
    font-size: 16px;
    transition: transform var(--transition-fast);
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ========================================
   Main Content
   ======================================== */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-xl);
}

/* ========================================
   Stats Grid - Bento Style
   ======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.stat-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-sm);
}

.stat-value {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-total {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border: none;
}

.stat-total .stat-label,
.stat-total .stat-value {
    color: var(--text-inverse);
}

.stat-total .stat-decoration {
    position: absolute;
    right: -20px;
    bottom: -20px;
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.stat-emails {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    border: none;
}

.stat-emails .stat-label,
.stat-emails .stat-value {
    color: var(--text-inverse);
}

.stat-vendors .stat-value {
    color: var(--primary);
}

/* ========================================
   Section Titles
   ======================================== */
.section-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

/* ========================================
   Vendor Distribution
   ======================================== */
.vendor-section {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
    border: 1px solid var(--border-light);
}

.vendor-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.vendor-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.vendor-tag:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
}

.vendor-tag .count {
    background: rgba(0, 0, 0, 0.1);
    padding: 2px 8px;
    border-radius: 100px;
    font-size: 12px;
}

.vendor-tag:hover .count {
    background: rgba(255, 255, 255, 0.2);
}

/* ========================================
   Filter Bar
   ======================================== */
.filter-bar {
    display: flex;
    gap: var(--space-md);
    align-items: flex-end;
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.filter-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-select {
    padding: var(--space-sm) var(--space-md);
    background: var(--surface);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    min-width: 180px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(196, 101, 74, 0.1);
}

.search-group {
    flex: 1;
    position: relative;
    min-width: 280px;
}

.search-input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    padding-left: 40px;
    background: var(--surface);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.search-input::placeholder {
    color: var(--text-tertiary);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(196, 101, 74, 0.1);
}

.search-icon {
    position: absolute;
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: 16px;
    pointer-events: none;
}

.clear-btn {
    padding: var(--space-sm) var(--space-lg);
    background: transparent;
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.clear-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* ========================================
   Table Section
   ======================================== */
.table-section {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
}

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

.table-header .section-title {
    margin-bottom: 0;
}

.result-count {
    font-size: 13px;
    color: var(--text-tertiary);
}

.table-wrapper {
    overflow-x: auto;
}

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

.expert-table th {
    text-align: left;
    padding: var(--space-md) var(--space-lg);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
    white-space: nowrap;
}

.expert-table td {
    padding: var(--space-md) var(--space-lg);
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}

.expert-table tbody tr {
    transition: background var(--transition-fast);
}

.expert-table tbody tr:hover {
    background: var(--bg-secondary);
}

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

.expert-name {
    font-weight: 600;
    color: var(--text-primary);
}

.vendor-badge {
    display: inline-block;
    padding: 4px 10px;
    background: var(--bg-tertiary);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
}

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

.actions-col {
    width: 140px;
}

.action-btn {
    padding: 6px 12px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: 'Inter', sans-serif;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-right: var(--space-xs);
}

.action-btn-view {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.action-btn-view:hover {
    background: var(--primary);
    color: var(--text-inverse);
}

.action-btn-delete {
    background: transparent;
    color: var(--error);
}

.action-btn-delete:hover {
    background: var(--error);
    color: var(--text-inverse);
}

.empty-state {
    text-align: center;
    padding: var(--space-2xl);
    color: var(--text-tertiary);
}

/* ========================================
   Pagination
   ======================================== */
.pagination-wrapper {
    padding: var(--space-lg);
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: center;
}

.pagination {
    display: flex;
    gap: var(--space-xs);
}

.page-btn {
    min-width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.page-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
}

/* ========================================
   Modal
   ======================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(44, 40, 37, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-container {
    background: var(--surface);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 480px;
    max-height: 85vh;
    overflow: hidden;
    transform: scale(0.95) translateY(20px);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-container {
    transform: scale(1) translateY(0);
}

.modal-lg {
    max-width: 720px;
}

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

.modal-title {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 24px;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--space-lg);
    overflow-y: auto;
    max-height: calc(85vh - 80px);
}

/* Detail Table in Modal */
.detail-table {
    width: 100%;
    border-collapse: collapse;
}

.detail-table th,
.detail-table td {
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--border-light);
    font-size: 14px;
}

.detail-table th {
    width: 140px;
    font-weight: 500;
    color: var(--text-tertiary);
    background: var(--bg-secondary);
}

.detail-table td {
    color: var(--text-primary);
}

.detail-table tr:last-child th,
.detail-table tr:last-child td {
    border-bottom: none;
}

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

.detail-table a:hover {
    text-decoration: underline;
}

/* Sync Result */
.sync-stat {
    display: flex;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

.sync-stat:last-child {
    border-bottom: none;
}

.sync-stat-label {
    color: var(--text-tertiary);
}

.sync-stat-value {
    font-weight: 600;
    color: var(--text-primary);
}

.sync-errors {
    margin-top: var(--space-md);
    padding: var(--space-md);
    background: rgba(184, 84, 80, 0.1);
    border-radius: var(--radius-md);
    color: var(--error);
    font-size: 13px;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .stat-total {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: var(--space-md);
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-total {
        grid-column: span 1;
    }

    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-group,
    .search-group {
        width: 100%;
    }

    .search-group {
        min-width: unset;
    }

    .clear-btn {
        width: 100%;
    }

    .expert-table th,
    .expert-table td {
        padding: var(--space-sm) var(--space-md);
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: var(--space-sm) var(--space-md);
    }

    .logo-text {
        display: none;
    }

    .sync-text {
        display: none;
    }
}