/**
 * Classica Hub Admin Styles
 * Blue theme for internal/admin areas
 */

/* ============================================
   CSS Variables - Admin Blue Palette
   ============================================ */
:root {
    /* Blues (Admin Theme) */
    --blue-900: #0f172a;
    --blue-800: #1e3a5f;
    --blue-700: #1e4976;
    --blue-600: #2563eb;
    --blue-500: #3b82f6;
    --blue-400: #60a5fa;
    --blue-300: #93c5fd;
    --blue-200: #bfdbfe;
    --blue-100: #dbeafe;
    --blue-50: #eff6ff;
    
    /* Neutrals */
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    
    /* Accent Colors */
    --green: #22c55e;
    --green-light: #dcfce7;
    --gold: #F9A01B;
    --gold-light: #fef3c7;
    --red: #ef4444;
    --red-light: #fee2e2;
    --purple: #8b5cf6;
    --purple-light: #ede9fe;
    
    /* Layout */
    --sidebar-width: 260px;
    --topbar-height: 70px;
    
    /* Typography */
    --font-body: 'Archivo', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gray-100);
}

a {
    color: inherit;
    text-decoration: none;
}

/* ============================================
   Admin Layout
   ============================================ */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

/* ============================================
   Sidebar
   ============================================ */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--blue-900) 0%, var(--blue-800) 100%);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-logo {
    height: 24px;
    width: auto;
}

.sidebar-badge {
    display: inline-block;
    margin-top: 0.75rem;
    padding: 0.25rem 0.75rem;
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    color: rgba(255,255,255,0.7);
    font-weight: 500;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: rgba(255,255,255,0.05);
    color: white;
}

.nav-item.active {
    background: rgba(255,255,255,0.1);
    color: white;
    border-left-color: var(--blue-400);
}

.nav-item i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

.sidebar-footer {
    padding: 1rem 0;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* ============================================
   Main Content
   ============================================ */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

/* ============================================
   Top Bar
   ============================================ */
.top-bar {
    height: var(--topbar-height);
    background: white;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 50;
}

.top-bar h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
}

/* ============================================
   Content Area
   ============================================ */
.content {
    padding: 2rem;
}

/* ============================================
   Stats Grid
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    border: 1px solid var(--gray-200);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.stat-icon.blue {
    background: var(--blue-100);
    color: var(--blue-600);
}

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

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

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

.stat-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: 0.25rem;
}

/* ============================================
   Cards
   ============================================ */
.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    border: 1px solid var(--gray-200);
    margin-bottom: 1.5rem;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-900);
}

.card-body {
    padding: 1.5rem;
}

.link {
    color: var(--blue-600);
    font-size: 0.875rem;
    font-weight: 500;
}

.link:hover {
    text-decoration: underline;
}

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

.table th,
.table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-100);
}

.table th {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    background: var(--gray-50);
}

.table tbody tr:hover {
    background: var(--gray-50);
}

.table code {
    font-size: 0.85rem;
    padding: 0.2rem 0.5rem;
    background: var(--gray-100);
    border-radius: 4px;
}

/* ============================================
   Badges
   ============================================ */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    text-transform: capitalize;
}

.badge-blue {
    background: var(--blue-100);
    color: var(--blue-700);
}

.badge-green {
    background: var(--green-light);
    color: #166534;
}

.badge-gray {
    background: var(--gray-200);
    color: var(--gray-600);
}

.badge-gold {
    background: var(--gold-light);
    color: #92400e;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--blue-600);
    color: white;
}

.btn-primary:hover {
    background: var(--blue-700);
}

.btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

.btn-small {
    padding: 0.375rem 0.75rem;
    font-size: 0.8rem;
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--gray-500);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.empty-state p {
    margin-bottom: 1.5rem;
}

/* ============================================
   Quick Actions
   ============================================ */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.action-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--gray-50);
    border-radius: 8px;
    color: var(--gray-700);
    font-weight: 500;
    transition: all 0.2s;
}

.action-item:hover {
    background: var(--blue-50);
    color: var(--blue-700);
}

.action-item i {
    font-size: 1.25rem;
    color: var(--blue-500);
}

/* ============================================
   Status List
   ============================================ */
.status-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

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

.status-dot.yellow {
    background: var(--gold);
}

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

/* ============================================
   Grid Layouts
   ============================================ */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-actions {
        grid-template-columns: 1fr;
    }
}