:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #0ea5e9;
    --success-color: #059669;
    --warning-color: #d97706;
    --danger-color: #dc2626;
    --text-dark: #0f172a;
    --text-medium: #475569;
    --text-light: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-accent: #f8fafc;
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: var(--bg-secondary);
    color: var(--text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 14px;
}

/* Login Screen */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.login-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.05"><path d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/></g></g></svg>');
    opacity: 0.1;
}

.login-container {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 40px 36px;
    max-width: 400px;
    width: 100%;
    box-shadow: var(--shadow-2xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    z-index: 1;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    max-height: 48px;
    margin-bottom: 20px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.login-header h1 {
    font-family: 'Inter', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.login-header p {
    color: var(--text-medium);
    font-size: 0.875rem;
    font-weight: 400;
    font-family: 'Inter', sans-serif;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.875rem;
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.01em;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.9375rem;
    font-family: 'Inter', sans-serif;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--bg-primary);
    color: var(--text-dark);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.login-btn {
    padding: 13px 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    margin-top: 8px;
    letter-spacing: 0.01em;
    box-shadow: var(--shadow-md);
}

.login-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.login-btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

/* Admin Dashboard */
.dashboard-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
}

/* Admin Header */
.admin-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 32px;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.admin-header-content {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-logo-section {
    display: flex;
    align-items: center;
    gap: 16px;
}

.admin-logo {
    max-height: 36px;
}

.admin-logo-section h1 {
    font-family: 'Inter', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

.admin-header-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.view-site-btn,
.logout-btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.01em;
}

.view-site-btn {
    background: var(--bg-secondary);
    color: var(--text-dark);
    text-decoration: none;
    border: 1.5px solid var(--border-color);
}

.view-site-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

.logout-btn {
    background: var(--danger-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

.logout-btn:hover {
    background: #b91c1c;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Main Layout */
.admin-main {
    display: flex;
    flex: 1;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
    padding: 0;
}

/* Sidebar */
.admin-sidebar {
    width: 260px;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    padding: 24px 0;
    position: sticky;
    top: 73px;
    height: calc(100vh - 73px);
    overflow-y: auto;
}

.admin-sidebar::-webkit-scrollbar {
    width: 6px;
}

.admin-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.admin-sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.admin-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

.admin-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0 16px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border: none;
    background: transparent;
    color: var(--text-medium);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: left;
    font-family: 'Inter', sans-serif;
    position: relative;
}

.nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

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

.nav-item.active {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(14, 165, 233, 0.08));
    color: var(--primary-color);
    font-weight: 600;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--primary-color);
    border-radius: 0 2px 2px 0;
}

.nav-item .badge {
    margin-left: auto;
    background: var(--primary-color);
    color: white;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    min-width: 24px;
    text-align: center;
}

/* Content Area */
.admin-content {
    flex: 1;
    padding: 32px;
    overflow-y: auto;
}

.admin-section {
    display: none;
}

.admin-section.active {
    display: block;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.section-header h2 {
    font-family: 'Inter', sans-serif;
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

.section-actions {
    display: flex;
    gap: 10px;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-dark);
    border: 1.5px solid var(--border-color);
}

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

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.orders-icon {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(59, 130, 246, 0.1));
    color: var(--primary-color);
}

.pending-icon {
    background: linear-gradient(135deg, rgba(217, 119, 6, 0.1), rgba(245, 158, 11, 0.1));
    color: var(--warning-color);
}

.completed-icon {
    background: linear-gradient(135deg, rgba(5, 150, 105, 0.1), rgba(16, 185, 129, 0.1));
    color: var(--success-color);
}

.revenue-icon {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(167, 139, 250, 0.1));
    color: #8b5cf6;
}

.stat-info h3 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.5px;
}

.stat-info p {
    color: var(--text-medium);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Orders Table */
.orders-table-container {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    overflow-x: auto;
}

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

.orders-table thead {
    background: var(--bg-secondary);
}

.orders-table th {
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-dark);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: 'Inter', sans-serif;
}

.orders-table td {
    padding: 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-medium);
    font-size: 0.875rem;
}

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

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

.status-badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.05em;
}

.status-pending {
    background: rgba(217, 119, 6, 0.1);
    color: var(--warning-color);
}

.status-completed {
    background: rgba(5, 150, 105, 0.1);
    color: var(--success-color);
}

.status-cancelled {
    background: rgba(220, 38, 38, 0.1);
    color: var(--danger-color);
}

.action-buttons {
    display: flex;
    gap: 6px;
}

.action-btn {
    padding: 6px 12px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 0.8125rem;
    font-weight: 600;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: 'Inter', sans-serif;
}

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

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

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

.btn-complete:hover {
    background: #047857;
}

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

.btn-cancel:hover {
    background: #b91c1c;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-medium);
    font-style: italic;
    font-size: 0.9375rem;
}

/* Products Grid Admin */
.products-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.product-card-admin {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card-admin:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-color);
}

.product-card-admin img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    border-radius: 8px;
    margin-bottom: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
}

.product-card-admin h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-family: 'Inter', sans-serif;
}

.product-card-admin p {
    color: var(--text-medium);
    font-size: 0.875rem;
    margin-bottom: 12px;
    line-height: 1.5;
}

.product-card-actions {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

/* Discounts List */
.discounts-list,
.news-list {
    display: grid;
    gap: 20px;
}

.discount-card,
.news-card-admin {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.discount-card:hover,
.news-card-admin:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-color);
}

.discount-header,
.news-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 16px;
}

.discount-badge,
.news-badge {
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.05em;
}

.badge-discount {
    background: rgba(217, 119, 6, 0.1);
    color: var(--warning-color);
}

.badge-stock {
    background: rgba(5, 150, 105, 0.1);
    color: var(--success-color);
}

.badge-update {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
}

.discount-header h3,
.news-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: 10px;
    margin-bottom: 6px;
    color: var(--text-dark);
    font-family: 'Inter', sans-serif;
}

.discount-header p,
.news-header p {
    color: var(--text-medium);
    font-size: 0.875rem;
    margin-top: 4px;
}

.discount-card p,
.news-card-admin p {
    color: var(--text-medium);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.discount-actions,
.news-actions {
    display: flex;
    gap: 8px;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.6);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: 16px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-2xl);
    border: 1px solid var(--border-color);
    animation: modalSlideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-content.large {
    max-width: 800px;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 28px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-family: 'Inter', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 1.75rem;
    color: var(--text-medium);
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.modal-form {
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 8px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.order-details-content {
    padding: 28px;
}

.order-detail-item {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-light);
}

.order-detail-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.order-detail-item h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
    font-family: 'Inter', sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.8125rem;
}

.order-detail-item p {
    color: var(--text-medium);
    margin: 6px 0;
    font-size: 0.9375rem;
}

.order-items-list {
    list-style: none;
    margin-top: 12px;
}

.order-items-list li {
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-radius: 8px;
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9375rem;
}

.order-items-list li strong {
    color: var(--text-dark);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 1024px) {
    .admin-main {
        flex-direction: column;
    }
    
    .admin-sidebar {
        width: 100%;
        position: relative;
        top: 0;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .admin-nav {
        flex-direction: row;
        overflow-x: auto;
        padding: 10px 16px;
    }
    
    .nav-item {
        white-space: nowrap;
    }
}

@media (max-width: 768px) {
    .admin-header-content {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
    
    .admin-content {
        padding: 20px;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .orders-table-container {
        overflow-x: auto;
    }
    
    .products-list {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        margin: 10px;
        max-width: calc(100% - 20px);
    }
}