/* ============================================================================
   CSS Variables & Reset
   ============================================================================ */

:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --light-bg: #ecf0f1;
    --white: #ffffff;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --border-color: #bdc3c7;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--light-bg);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

button {
    cursor: pointer;
    border: none;
    font-family: inherit;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================================================
   Header
   ============================================================================ */

header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

/* ============================================================================
   Buttons
   ============================================================================ */

.btn-primary, .btn-secondary, .btn-danger {
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--light-bg);
    color: var(--text-dark);
}

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

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

.btn-danger:hover {
    background-color: #c0392b;
}

.instagram-btn {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
}

.instagram-btn.large {
    padding: 1rem 1.5rem;
    font-size: 1.1rem;
}

.full-width {
    width: 100%;
}

/* ============================================================================
   Hero Section
   ============================================================================ */

.hero {
    text-align: center;
    padding: 3rem 0;
    background-color: var(--white);
    margin: 2rem 0;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.hero h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================================================
   Categories
   ============================================================================ */

.categories {
    margin: 3rem 0;
}

.categories h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.category-card {
    background-color: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    text-align: center;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.category-name {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.product-count {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ============================================================================
   Products
   ============================================================================ */

.products {
    margin: 2rem 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.product-card {
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.product-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background-color: var(--light-bg);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.no-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.badge {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.out-of-stock {
    background-color: var(--danger-color);
    color: var(--white);
}

.product-info {
    padding: 1rem;
}

.product-name {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.product-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent-color);
}

/* ============================================================================
   Product Detail
   ============================================================================ */

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin: 2rem 0;
    background-color: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.product-gallery {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.main-image {
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 1rem;
    background-color: var(--light-bg);
}

.main-image img {
    width: 100%;
    height: auto;
}

.thumbnail-strip {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 0.5rem;
}

.thumbnail {
    border-radius: 6px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.thumbnail:hover, .thumbnail.active {
    border-color: var(--primary-color);
}

.no-image-large {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--light-bg);
    border-radius: 12px;
    color: var(--text-light);
}

.product-details h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.description {
    margin: 2rem 0;
    padding: 1.5rem;
    background-color: var(--light-bg);
    border-radius: 8px;
}

.description h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.variants {
    margin: 2rem 0;
}

.variants h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

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

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

.variant-table th,
.variant-table td {
    padding: 0.8rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.variant-table th {
    background-color: var(--light-bg);
    font-weight: 600;
}

.out-of-stock-row {
    opacity: 0.6;
}

.in-stock {
    color: var(--success-color);
    font-weight: 600;
}

.cta-section {
    margin-top: 2rem;
    padding: 2rem;
    background-color: var(--light-bg);
    border-radius: 8px;
    text-align: center;
}

.cta-text {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

/* ============================================================================
   Breadcrumb
   ============================================================================ */

.breadcrumb {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin: 1rem 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

.breadcrumb a:hover {
    color: var(--primary-color);
}

.breadcrumb .current {
    color: var(--primary-color);
    font-weight: 600;
}

/* ============================================================================
   Category Header
   ============================================================================ */

.category-header {
    text-align: center;
    margin: 2rem 0;
}

.category-header h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* ============================================================================
   Empty State
   ============================================================================ */

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.empty-state p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

/* ============================================================================
   Footer
   ============================================================================ */

footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 2rem 0;
    margin-top: 4rem;
    text-align: center;
}

footer a {
    color: var(--white);
    text-decoration: underline;
}

/* ============================================================================
   Admin Pages
   ============================================================================ */

.admin-page {
    background-color: var(--light-bg);
}

.admin-header {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: var(--shadow);
}

.admin-header .container {
    padding: 1rem 20px;
}

.admin-header h1 {
    color: var(--white);
    font-size: 1.5rem;
}

.admin-main {
    min-height: calc(100vh - 80px);
}

.admin-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 20px;
}

.admin-nav {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    background-color: var(--white);
    padding: 0.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.nav-item {
    padding: 0.8rem 1.5rem;
    background-color: transparent;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s ease;
}

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

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

.admin-content {
    background-color: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.admin-view {
    display: none;
}

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

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

.view-header h2 {
    color: var(--primary-color);
}

.view-actions {
    display: flex;
    gap: 1rem;
}

.info-box {
    background-color: #e8f5e9;
    border-left: 4px solid var(--success-color);
    padding: 1rem;
    margin-bottom: 2rem;
    border-radius: 4px;
}

/* ============================================================================
   Login Page
   ============================================================================ */

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-box {
    background-color: var(--white);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow-hover);
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    text-align: center;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select,
.form-control {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.error-message {
    background-color: #ffebee;
    color: var(--danger-color);
    padding: 0.8rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    border-left: 4px solid var(--danger-color);
}

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
}

.login-footer a {
    color: var(--primary-color);
}

/* ============================================================================
   Sortable Lists
   ============================================================================ */

.sortable-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sortable-item {
    background-color: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: move;
    transition: all 0.3s ease;
}

.sortable-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.sortable-item.dragging {
    opacity: 0.5;
}

.item-info {
    flex: 1;
}

.item-info h4 {
    color: var(--primary-color);
    margin-bottom: 0.3rem;
}

.item-info p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.item-actions {
    display: flex;
    gap: 0.5rem;
}

.icon-btn {
    padding: 0.5rem;
    background-color: transparent;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.icon-btn:hover {
    background-color: var(--light-bg);
}

/* ============================================================================
   Products List (Admin)
   ============================================================================ */

.products-list {
    display: grid;
    gap: 1rem;
}

.product-item {
    background-color: var(--light-bg);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    gap: 1rem;
    align-items: center;
}

.product-item-image {
    width: 80px;
    height: 80px;
    border-radius: 6px;
    overflow: hidden;
    background-color: var(--border-color);
}

.product-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-item-info {
    flex: 1;
}

.product-item-info h4 {
    color: var(--primary-color);
    margin-bottom: 0.3rem;
}

.product-item-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.product-item-actions {
    display: flex;
    gap: 0.5rem;
}

/* ============================================================================
   Modal
   ============================================================================ */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    overflow-y: auto;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal-content {
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-hover);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-content.large {
    max-width: 900px;
}

.modal-content.small {
    max-width: 400px;
}

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

.modal-header h3 {
    color: var(--primary-color);
}

.close-btn {
    background: none;
    font-size: 2rem;
    color: var(--text-light);
    line-height: 1;
}

.close-btn:hover {
    color: var(--text-dark);
}

.modal form {
    padding: 1.5rem;
}

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

/* ============================================================================
   Variants
   ============================================================================ */

.variants-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.variant-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr 40px;
    gap: 0.5rem;
    align-items: center;
}

.variant-row input {
    padding: 0.6rem;
    border: 2px solid var(--border-color);
    border-radius: 6px;
}

.remove-variant-btn {
    padding: 0.5rem;
    background-color: var(--danger-color);
    color: var(--white);
    border-radius: 6px;
}

/* ============================================================================
   Image Preview
   ============================================================================ */

.image-preview-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.image-preview-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: 6px;
    overflow: hidden;
}

.image-preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.delete-image-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    background-color: var(--danger-color);
    color: var(--white);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

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

@media (max-width: 768px) {
    .product-detail {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .product-gallery {
        position: static;
    }

    .category-grid,
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }

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

    .view-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .view-actions {
        width: 100%;
        flex-direction: column;
    }

    .admin-nav {
        flex-wrap: wrap;
    }

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

@media (max-width: 480px) {
    .hero h2 {
        font-size: 1.5rem;
    }

    .category-grid,
    .product-grid {
        grid-template-columns: 1fr;
    }

    .login-box {
        padding: 2rem;
    }
}

/* ============================================================================
   Storefront UI Refresh (non-admin)
   ============================================================================ */

body:not(.admin-page) {
    --store-bg: #f7f9fc;
    --store-surface: #ffffff;
    --store-text: #172033;
    --store-muted: #667085;
    --store-border: #e7ecf3;
    --store-shadow: 0 10px 30px rgba(16, 24, 40, 0.08);
    --store-shadow-hover: 0 14px 40px rgba(16, 24, 40, 0.14);
    --store-primary: #1f4fff;
    --store-primary-dark: #173cc4;
    --store-accent: #ff4f8b;
    color: var(--store-text);
    background:
        radial-gradient(circle at 20% -10%, #e8efff 0%, transparent 40%),
        radial-gradient(circle at 90% -20%, #ffe7f1 0%, transparent 35%),
        var(--store-bg);
}

body:not(.admin-page) .container {
    max-width: 1180px;
}

body:not(.admin-page) header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--store-border);
    box-shadow: 0 4px 22px rgba(15, 23, 42, 0.05);
}

body:not(.admin-page) .logo {
    letter-spacing: 0.2px;
    color: #0f172a;
}

body:not(.admin-page) .btn-primary,
body:not(.admin-page) .btn-secondary,
body:not(.admin-page) .btn-danger {
    border-radius: 999px;
    font-weight: 700;
    padding: 0.65rem 1.2rem;
}

body:not(.admin-page) .btn-primary {
    background: linear-gradient(135deg, var(--store-primary), #4a6dff);
    box-shadow: 0 8px 18px rgba(31, 79, 255, 0.28);
}

body:not(.admin-page) .btn-primary:hover {
    background: linear-gradient(135deg, var(--store-primary-dark), #3558e8);
    transform: translateY(-2px);
}

body:not(.admin-page) .btn-secondary {
    background: #f2f5fb;
    color: #26324a;
    border: 1px solid var(--store-border);
}

body:not(.admin-page) .hero {
    position: relative;
    overflow: hidden;
    margin: 2rem 0 2.5rem;
    border-radius: 24px;
    background: linear-gradient(125deg, #ffffff 0%, #f5f8ff 100%);
    border: 1px solid var(--store-border);
    box-shadow: var(--store-shadow);
    padding: 3.2rem 1.5rem;
}

body:not(.admin-page) .hero::after {
    content: "";
    position: absolute;
    right: -60px;
    top: -60px;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(31, 79, 255, 0.13) 0%, transparent 70%);
}

body:not(.admin-page) .hero h2 {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    line-height: 1.2;
    margin-bottom: 0.85rem;
    color: #0f172a;
}

body:not(.admin-page) .hero p {
    color: var(--store-muted);
}

body:not(.admin-page) .categories h3,
body:not(.admin-page) .category-header h2,
body:not(.admin-page) .product-details h1 {
    letter-spacing: -0.2px;
    color: #111827;
}

body:not(.admin-page) .category-grid,
body:not(.admin-page) .product-grid {
    gap: 1.2rem;
}

body:not(.admin-page) .category-card,
body:not(.admin-page) .product-card,
body:not(.admin-page) .product-detail,
body:not(.admin-page) .empty-state {
    border: 1px solid var(--store-border);
    border-radius: 18px;
    box-shadow: var(--store-shadow);
    background: var(--store-surface);
}

body:not(.admin-page) .category-card {
    padding: 1.5rem;
}

body:not(.admin-page) .category-card:hover,
body:not(.admin-page) .product-card:hover {
    box-shadow: var(--store-shadow-hover);
    transform: translateY(-4px);
}

body:not(.admin-page) .category-name,
body:not(.admin-page) .product-name {
    color: #172033;
}

body:not(.admin-page) .product-count,
body:not(.admin-page) .breadcrumb,
body:not(.admin-page) .empty-state p,
body:not(.admin-page) .cta-text,
body:not(.admin-page) .description p {
    color: var(--store-muted);
}

body:not(.admin-page) .product-price,
body:not(.admin-page) .price {
    color: var(--store-accent);
}

body:not(.admin-page) .badge.out-of-stock {
    background: #ff6b6b;
    box-shadow: 0 6px 16px rgba(255, 107, 107, 0.35);
}

body:not(.admin-page) .description,
body:not(.admin-page) .cta-section {
    border: 1px solid var(--store-border);
    border-radius: 14px;
    background: #f9fbff;
}

body:not(.admin-page) .variant-table table {
    border: 1px solid var(--store-border);
    border-radius: 12px;
    overflow: hidden;
}

body:not(.admin-page) .variant-table th {
    background: #f2f6ff;
    color: #2d3b5f;
}

body:not(.admin-page) .variant-table td {
    background: #fff;
}

body:not(.admin-page) .thumbnail {
    border-radius: 10px;
}

body:not(.admin-page) .thumbnail.active {
    border-color: var(--store-primary);
    box-shadow: 0 0 0 3px rgba(31, 79, 255, 0.15);
}

body:not(.admin-page) footer {
    margin-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    background: linear-gradient(135deg, #0f172a, #1f2a44);
}

body:not(.admin-page) footer p {
    color: #e9edf6;
}

body:not(.admin-page) footer a {
    color: #c5d6ff;
}

@media (max-width: 768px) {
    body:not(.admin-page) .hero {
        padding: 2.2rem 1rem;
        border-radius: 18px;
    }

    body:not(.admin-page) .product-detail {
        padding: 1.25rem;
        border-radius: 14px;
    }
}