/**
 * Internal Admin Panel Styles
 * Based on BullsAlert fintech theme
 *
 * @author Tumquan Development Team
 * @company Tumquan Corp
 * @copyright © 2026 Tumquan Corp. All rights reserved.
 */

/* ============================================
   CSS VARIABLES - BullsAlert Theme
   ============================================ */

:root {
    /* Primary Colors */
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-900: #1e3a8a;

    /* Accent Colors */
    --accent-500: #06b6d4;
    --accent-700: #0e7490;

    /* Success/Danger/Warning */
    --success-500: #22c55e;
    --success-900: #065f46;
    --danger-500: #ef4444;
    --danger-900: #7f1d1d;
    --warning-500: #f59e0b;
    --warning-900: #78350f;

    /* Dark Theme Base */
    --bg-primary: #18181b;
    --bg-secondary: #1f1f23;
    --bg-elevated: #2d2d33;
    --text-primary: #ffffff;
    --text-secondary: #d4d4d8;
    --text-tertiary: #71717a;
    --border-color: #3f3f46;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms;
    --transition-base: 200ms;
    --transition-slow: 300ms;
}

/* ============================================
   ADMIN LAYOUT
   ============================================ */

.admin-container {
    display: flex;
    min-height: 100vh;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.admin-sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 100;
    transition: transform var(--transition-base) ease;
}

.admin-sidebar-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
}

.admin-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.admin-nav {
    padding: var(--space-md);
}

.admin-nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast) ease;
    margin-bottom: var(--space-xs);
    font-weight: 500;
}

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

.admin-nav-item.active {
    background: rgba(59, 130, 246, 0.15);
    color: var(--primary-500);
    border-left: 3px solid var(--primary-500);
}

.admin-nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* ============================================
   MAIN CONTENT
   ============================================ */

.admin-main {
    flex: 1;
    margin-left: 260px;
    background: var(--bg-primary);
}

.admin-topbar {
    height: 60px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.admin-topbar-title {
    font-size: 1.25rem;
    font-weight: 600;
}

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

.admin-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-500);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.admin-content {
    padding: var(--space-2xl);
    max-width: 1400px;
}

/* ============================================
   STAT CARDS
   ============================================ */

.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.admin-stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all var(--transition-fast) ease;
}

.admin-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-500);
}

.admin-stat-label {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.admin-stat-meta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
}

.admin-stat-badge {
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.admin-stat-badge-success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success-500);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.admin-stat-badge-primary {
    background: rgba(59, 130, 246, 0.15);
    color: var(--primary-500);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.admin-stat-badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning-500);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.admin-stat-badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger-500);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* ============================================
   SECTION CARDS
   ============================================ */

.admin-section-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.admin-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.admin-section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ============================================
   TABLES
   ============================================ */

.admin-table-container {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.admin-table thead {
    background: var(--bg-elevated);
}

.admin-table th {
    padding: var(--space-md);
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.admin-table td {
    padding: var(--space-md);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

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

.admin-table tbody tr:hover {
    background: var(--bg-elevated);
}

/* ============================================
   FORMS
   ============================================ */

.admin-form-group {
    margin-bottom: var(--space-lg);
}

.admin-form-label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.admin-form-control {
    width: 100%;
    padding: var(--space-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: all var(--transition-fast) ease;
}

.admin-form-control:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.admin-form-control::placeholder {
    color: var(--text-tertiary);
}

textarea.admin-form-control {
    resize: vertical;
    min-height: 100px;
}

.admin-checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.admin-checkbox {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* ============================================
   BUTTONS
   ============================================ */

.admin-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast) ease;
    border: none;
    text-decoration: none;
}

.admin-btn-primary {
    background: var(--primary-500);
    color: white;
}

.admin-btn-primary:hover {
    background: var(--primary-600);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.admin-btn-secondary {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.admin-btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-500);
}

.admin-btn-success {
    background: var(--success-500);
    color: white;
}

.admin-btn-success:hover {
    background: #16a34a;
}

.admin-btn-danger {
    background: var(--danger-500);
    color: white;
}

.admin-btn-danger:hover {
    background: #dc2626;
}

.admin-btn-sm {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.75rem;
}

/* ============================================
   BADGES
   ============================================ */

.admin-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
}

.admin-badge-success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success-500);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.admin-badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger-500);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.admin-badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning-500);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.admin-badge-info {
    background: rgba(59, 130, 246, 0.15);
    color: var(--primary-500);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.admin-badge-secondary {
    background: rgba(113, 113, 122, 0.15);
    color: var(--text-tertiary);
    border: 1px solid rgba(113, 113, 122, 0.3);
}

/* ============================================
   MOBILE RESPONSIVE
   ============================================ */

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

    .admin-sidebar.active {
        transform: translateX(0);
    }

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

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

    .admin-content {
        padding: var(--space-lg);
    }
}