/* ============================================
   MLO Vault - Admin Dashboard Styles
   ============================================ */

:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --purple: #8b5cf6;
    --orange: #f97316;

    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --border: #334155;
    --border-light: #475569;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ============================================
   Dashboard Layout
   ============================================ */

.dashboard-container {
    display: flex;
    min-height: 100vh;
}

/* ============================================
   Sidebar
   ============================================ */

.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo svg {
    color: var(--primary);
}

.sidebar-nav {
    flex: 1;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.2s ease;
    font-weight: 500;
}

.nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--primary);
    color: white;
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--border);
}

.refresh-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.refresh-btn:hover {
    background: var(--bg-primary);
}

.refresh-btn:active {
    transform: scale(0.98);
}

/* ============================================
   Main Content
   ============================================ */

.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 2rem;
    max-width: 100%;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.last-update {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ============================================
   Loading State
   ============================================ */

.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    gap: 1rem;
}

.loader {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-state p {
    color: var(--text-secondary);
}

/* ============================================
   Stats Grid
   ============================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    gap: 1rem;
    transition: all 0.2s ease;
}

.stat-card:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon.blue { background: rgba(59, 130, 246, 0.1); color: var(--primary); }
.stat-icon.green { background: rgba(16, 185, 129, 0.1); color: var(--success); }
.stat-icon.purple { background: rgba(139, 92, 246, 0.1); color: var(--purple); }
.stat-icon.orange { background: rgba(249, 115, 22, 0.1); color: var(--orange); }

.stat-content {
    flex: 1;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.stat-change {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.change-badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-weight: 600;
}

.change-badge.positive {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.change-badge.neutral {
    background: rgba(100, 116, 139, 0.1);
    color: var(--text-muted);
}

/* ============================================
   Charts
   ============================================ */

.charts-row {
    margin-bottom: 2rem;
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.chart-header {
    margin-bottom: 1.5rem;
}

.chart-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.chart-container {
    position: relative;
    height: 300px;
}

/* ============================================
   Tables
   ============================================ */

.tables-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}

.table-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.table-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.table-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

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

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

.data-table thead {
    background: var(--bg-tertiary);
}

.data-table th {
    padding: 0.75rem 1.5rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table td {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    color: var(--text-primary);
}

.data-table tbody tr:hover {
    background: var(--bg-tertiary);
}

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

.file-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
}

.ip-address {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.time-ago {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

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

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .tables-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .main-content {
        padding: 1rem;
    }

    .page-header {
        flex-direction: column;
        gap: 1rem;
    }

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

    .stat-value {
        font-size: 1.5rem;
    }
}