:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #10b981;
    --accent: #f59e0b;
    --danger: #ef4444;
    --dark: #111827;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --radius: 8px;
    --radius-sm: 6px;
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.5;
}

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

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--dark);
    color: white;
    padding: 1.5rem 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 1rem;
}

.sidebar-header h1 {
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-header p {
    font-size: 0.75rem;
    color: var(--gray-400);
    margin-top: 0.25rem;
}

.nav-menu {
    list-style: none;
}

.nav-item {
    margin-bottom: 0.25rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: var(--gray-300);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.15s;
}

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

.nav-link.active {
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary-light);
    border-right: 3px solid var(--primary);
}

.nav-link .icon {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

.nav-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 1rem 0;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 2rem;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

.page-subtitle {
    font-size: 0.9rem;
    color: var(--gray-500);
    margin-top: 0.25rem;
}

/* Cards */
.card {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

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

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    font-family: inherit;
}

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

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

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-200);
}

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

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

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

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

.btn-icon {
    padding: 0.5rem;
    width: 36px;
    height: 36px;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.375rem;
}

input[type="text"],
input[type="number"],
input[type="url"],
select,
textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    transition: all 0.15s;
    font-family: inherit;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Table */
.table-container {
    overflow-x: auto;
}

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

th,
td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

th {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--gray-500);
    background: var(--gray-50);
}

td {
    font-size: 0.9rem;
}

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

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 9999px;
}

.badge-primary {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

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

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--accent);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

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

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

.stat-card {
    background: white;
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
}

.stat-card .icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.stat-card .value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
}

.stat-card .label {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: white;
    border-radius: var(--radius);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

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

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-400);
    line-height: 1;
}

.modal-close:hover {
    color: var(--gray-600);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--gray-200);
}

/* Filters */
.filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.search-box {
    flex: 1;
    min-width: 200px;
    position: relative;
}

.search-box input {
    padding-left: 2.5rem;
}

.search-box::before {
    content: '🔍';
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
}

.filter-select {
    min-width: 150px;
}

/* Actions */
.actions {
    display: flex;
    gap: 0.5rem;
}

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

.empty-state .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-sm);
    color: white;
    font-weight: 500;
    box-shadow: var(--shadow-md);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s;
    z-index: 1100;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    background: var(--secondary);
}

.toast.error {
    background: var(--danger);
}

/* Checkbox */
.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-wrapper input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

/* Back to generator */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-400);
    text-decoration: none;
    font-size: 0.875rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: auto;
}

.back-link:hover {
    color: white;
}