/* 
 * Minimalist E-commerce Theme
 * Colors: White (#FFFFFF), Black (#000000), Red (#E50914)
 * Fonts: Poppins, Noto Sans, Inter
 */

/* ========================================
   RESET & BASE STYLES
======================================== */

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

:root {
    --color-primary: #E50914;
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray-light: #F5F5F5;
    --color-gray: #E0E0E0;
    --color-gray-dark: #666666;
    --color-success: #4CAF50;
    --color-warning: #FF9800;
    --color-error: #F44336;
    --font-primary: 'Poppins', 'Noto Sans', 'Inter', sans-serif;
    --transition: all 0.3s ease;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-black);
    background-color: var(--color-white);
}

a {
    text-decoration: none;
    color: var(--color-black);
    transition: var(--transition);
}

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

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

ul {
    list-style: none;
}

/* ========================================
   CONTAINER & LAYOUT
======================================== */

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

.main-content {
    min-height: calc(100vh - 300px);
    padding: 40px 0;
}

/* ========================================
   HEADER
======================================== */

.header {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    flex: 0 0 auto;
}

.header-right {
    display: flex;
    gap: 15px;
    align-items: center;
}

.cart-link-mobile {
    display: none;
}

.cart-link-desktop {
    display: inline-block;
}

.logo a {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 2px;
}

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 28px;
    cursor: pointer;
    padding: 5px;
    line-height: 1;
}

.main-nav {
    display: flex;
    gap: 30px;
    align-items: center;
}

.main-nav a {
    color: var(--color-white);
    font-weight: 500;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.cart-link {
    position: relative;
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -12px;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 12px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 50%;
    min-width: 20px;
    text-align: center;
}

.btn-link {
    background: none;
    border: none;
    color: var(--color-white);
    font-weight: 500;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    font-family: var(--font-primary);
}

.btn-link:hover {
    color: var(--color-primary);
}

/* ========================================
   FOOTER
======================================== */

.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: 60px 0 20px;
    margin-top: 80px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--color-primary);
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: var(--color-white);
    font-size: 14px;
}

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

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 20px;
    text-align: center;
    color: var(--color-gray-dark);
}

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

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

.btn-primary:hover {
    background-color: #B00710;
    color: var(--color-white);
}

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

.btn-secondary:hover {
    background-color: #333;
    color: var(--color-white);
}

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

.btn-danger:hover {
    background-color: #D32F2F;
    color: var(--color-white);
}

.btn-disabled {
    background-color: var(--color-gray);
    color: var(--color-gray-dark);
    cursor: not-allowed;
}

.btn-large {
    padding: 16px 40px;
    font-size: 16px;
}

.btn-sm {
    padding: 6px 15px;
    font-size: 12px;
}

/* ========================================
   HERO SECTION
======================================== */

.hero-section {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: 100px 0;
    text-align: center;
}

.hero-section h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
}

.hero-section p {
    font-size: 20px;
    margin-bottom: 30px;
    color: var(--color-gray);
}

/* ========================================
   SECTIONS
======================================== */

.categories-section,
.products-section {
    padding: 60px 0;
}

.categories-section h2,
.products-section h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 40px;
    text-align: center;
}

/* ========================================
   CATEGORY GRID
======================================== */

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.category-card {
    background-color: var(--color-gray-light);
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.category-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

.category-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--color-black);
}

.category-card p {
    font-size: 14px;
    color: var(--color-gray-dark);
}

/* ========================================
   PRODUCT LIST & FILTERS
======================================== */

.products-page-layout {
    margin-top: 40px;
}

.products-main-content {
    width: 100%;
}

.products-toolbar {
    margin-bottom: 40px;
}

.filters-form {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.filters-form select,
.filters-form input[type="text"] {
    flex: 1;
    min-width: 200px;
    padding: 12px 20px;
    font-size: 14px;
    font-family: var(--font-primary);
    border: 1px solid var(--color-gray);
    background-color: var(--color-white);
    transition: var(--transition);
}

.filters-form select:focus,
.filters-form input[type="text"]:focus {
    outline: none;
    border-color: var(--color-primary);
}

.filters-form select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23000' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    padding-right: 40px;
}

/* ========================================
   PRODUCT GRID
======================================== */

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray);
    transition: var(--transition);
    overflow: hidden;
}

.product-card:hover {
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: var(--color-primary);
}

.product-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.product-info h3 a {
    color: var(--color-black);
}

.product-info h3 a:hover {
    color: var(--color-primary);
}

.product-info .category {
    font-size: 12px;
    color: var(--color-gray-dark);
    margin-bottom: 10px;
    text-transform: uppercase;
}

.product-info .price {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 15px;
}

.product-info .stock {
    font-size: 13px;
    color: var(--color-gray-dark);
    margin-bottom: 15px;
}

/* ========================================
   PRODUCT DETAIL
======================================== */

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.product-images .main-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border: 1px solid var(--color-gray);
}

.image-thumbnails {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.thumbnail {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border: 2px solid var(--color-gray);
    cursor: pointer;
    transition: var(--transition);
}

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

.product-details h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
}

.product-details .category {
    font-size: 14px;
    color: var(--color-gray-dark);
    margin-bottom: 10px;
}

.product-details .sku {
    font-size: 13px;
    color: var(--color-gray-dark);
    margin-bottom: 20px;
}

.product-details .price {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 30px;
}

.description {
    margin-bottom: 30px;
}

.description h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.stock-info {
    margin-bottom: 30px;
}

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

.out-of-stock {
    color: var(--color-error);
    font-weight: 600;
}

.quantity-selector {
    margin-bottom: 20px;
}

.quantity-selector label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.quantity-selector input {
    width: 80px;
    padding: 10px;
    border: 1px solid var(--color-gray);
    font-size: 16px;
}

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

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 14px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--color-gray);
    font-size: 14px;
    font-family: var(--font-primary);
    transition: var(--transition);
}

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

.form-group .error {
    color: var(--color-error);
    font-size: 12px;
    margin-top: 5px;
    display: block;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.error-field {
    border-color: var(--color-error) !important;
}

/* ========================================
   ALERTS
======================================== */

.alert {
    padding: 15px 20px;
    margin-bottom: 20px;
    border-radius: 4px;
    font-size: 14px;
    line-height: 1.6;
}

.alert h6 {
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 15px;
}

.alert p {
    margin-bottom: 10px;
}

.alert p:last-child {
    margin-bottom: 0;
}

.alert-success {
    background-color: #E8F5E9;
    color: var(--color-success);
    border-left: 4px solid var(--color-success);
}

.alert-error {
    background-color: #FFEBEE;
    color: var(--color-error);
    border-left: 4px solid var(--color-error);
}

.alert-info {
    background-color: #E3F2FD;
    color: #1565C0;
    border-left: 4px solid #1976D2;
}

.alert-info h6 {
    color: #0D47A1;
}

.alert-info strong {
    color: #0D47A1;
    font-weight: 600;
}

.badge-success {
    background-color: #E8F5E9;
    color: var(--color-success);
    border-left: 4px solid var(--color-success);
    padding: 15px 20px;
    margin-bottom: 0;
    border-radius: 4px;
    font-size: 14px;
    line-height: 1.6;
}

.badge-success h5 {
    font-weight: 600;
    margin-bottom: 15px;
    font-size: 16px;
    color: var(--color-success);
}

.badge-success p {
    margin-bottom: 10px;
}

.badge-success p:last-child {
    margin-bottom: 0;
}

.badge-success strong {
    color: #2E7D32;
    font-weight: 600;
}

/* ========================================
   PAGE HEADER
======================================== */

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--color-black);
}

.page-header h1 {
    font-size: 32px;
    font-weight: 700;
}

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

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

table thead {
    background-color: var(--color-black);
    color: var(--color-white);
}

table th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
}

table td {
    padding: 15px;
    border-bottom: 1px solid var(--color-gray);
}

table tbody tr:hover {
    background-color: var(--color-gray-light);
}

/* ========================================
   CART
======================================== */

.cart-table {
    margin-bottom: 40px;
}

.cart-product-image {
    width: 80px;
    height: 80px;
    object-fit: cover;
}

.product-cell {
    display: flex;
    gap: 15px;
    align-items: center;
}

.product-name a {
    font-weight: 600;
}

.product-sku {
    font-size: 12px;
    color: var(--color-gray-dark);
    margin-top: 5px;
}

.quantity-input {
    width: 70px;
    padding: 8px;
    border: 1px solid var(--color-gray);
}

.cart-summary {
    max-width: 400px;
    margin-left: auto;
    background-color: var(--color-gray-light);
    padding: 30px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    font-size: 18px;
}

.total-amount {
    font-weight: 700;
    color: var(--color-primary);
    font-size: 24px;
}

.cart-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.empty-cart {
    text-align: center;
    padding: 80px 20px;
}

.empty-cart p {
    font-size: 20px;
    margin-bottom: 30px;
    color: var(--color-gray-dark);
}

/* ========================================
   CHECKOUT
======================================== */

.checkout-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
}

.form-section {
    margin-bottom: 40px;
}

.form-section h2 {
    font-size: 22px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-black);
}

.order-summary {
    background-color: var(--color-gray-light);
    padding: 30px;
    position: sticky;
    top: 100px;
    height: fit-content;
}

.order-summary h2 {
    font-size: 22px;
    margin-bottom: 30px;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--color-gray);
}

.item-name {
    font-weight: 600;
    margin-bottom: 5px;
}

.item-quantity {
    font-size: 12px;
    color: var(--color-gray-dark);
}

.summary-totals {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px solid var(--color-black);
}

.summary-totals .total {
    font-size: 20px;
    font-weight: 700;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--color-black);
}

/* ========================================
   PAYMENT
======================================== */

.payment-page {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.payment-page h1 {
    font-size: 32px;
    margin-bottom: 30px;
}

.payment-methods {
    text-align: left;
    margin-bottom: 30px;
}

.payment-methods .form-group {
    margin-bottom: 25px;
}

.payment-methods .form-check {
    position: relative;
    padding: 20px;
    margin-bottom: 15px;
    border: 2px solid var(--color-gray);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    background-color: var(--color-white);
}

.payment-methods .form-check:hover {
    border-color: var(--color-primary);
    background-color: var(--color-gray-light);
}

.payment-methods .form-check-input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.payment-methods .form-check-label {
    display: block;
    padding-left: 35px;
    cursor: pointer;
    font-weight: 600;
    font-size: 16px;
    position: relative;
}

.payment-methods .form-check-label::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-gray-dark);
    border-radius: 50%;
    background-color: var(--color-white);
}

.payment-methods .form-check-label::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-primary);
    opacity: 0;
    transition: var(--transition);
}

.payment-methods .form-check-input:checked + .form-check-label::after {
    opacity: 1;
}

.payment-methods .form-check-input:checked ~ .form-check-label {
    color: var(--color-primary);
}

.payment-methods .form-check:has(.form-check-input:checked) {
    border-color: var(--color-primary);
    background-color: var(--color-gray-light);
}

.payment-info {
    margin-top: 20px;
    animation: fadeIn 0.3s ease-in;
    display: none;
}

.payment-info.show {
    display: block !important;
}

.payment-info .badge-info {
    background-color: #E3F2FD;
    color: #1565C0;
    border-left: 4px solid #1976D2;
    padding: 15px 20px;
    margin-bottom: 0;
    border-radius: 4px;
    font-size: 14px;
    line-height: 1.6;
}

.payment-info .badge-info h6 {
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 15px;
    color: #0D47A1;
}

.payment-info .badge-info p {
    margin-bottom: 10px;
}

.payment-info .badge-info p:last-child {
    margin-bottom: 0;
}

.payment-info .badge-info strong {
    color: #0D47A1;
    font-weight: 600;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.payment-option {
    display: block;
    padding: 15px;
    margin-bottom: 10px;
    border: 2px solid var(--color-gray);
    cursor: pointer;
    transition: var(--transition);
}

.payment-option:hover {
    border-color: var(--color-primary);
}

.payment-option input {
    margin-right: 10px;
}

.payment-success,
.payment-cancel {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 60px 20px;
}

.success-icon,
.cancel-icon {
    width: 100px;
    height: 100px;
    line-height: 100px;
    font-size: 60px;
    border-radius: 50%;
    margin: 0 auto 30px;
}

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

.cancel-icon {
    background-color: var(--color-error);
    color: var(--color-white);
}

.order-details,
.order-items {
    background-color: var(--color-gray-light);
    padding: 30px;
    margin: 30px 0;
    text-align: left;
}

.success-actions,
.cancel-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

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

.status {
    display: inline-block;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: 3px;
}

.status-pending {
    background-color: #FFF3E0;
    color: #E65100;
}

.status-paid {
    background-color: #E8F5E9;
    color: #2E7D32;
}

.status-processing {
    background-color: #E3F2FD;
    color: #1565C0;
}

.status-shipped {
    background-color: #F3E5F5;
    color: #6A1B9A;
}

.status-delivered {
    background-color: #E8F5E9;
    color: #1B5E20;
}

.status-cancelled {
    background-color: #FFEBEE;
    color: #C62828;
}

.payment-pending {
    background-color: #FFF9C4;
    color: #F57F17;
}

.payment-paid {
    background-color: #C8E6C9;
    color: #1B5E20;
}

.payment-failed {
    background-color: #FFCDD2;
    color: #B71C1C;
}

.payment-refunded {
    background-color: #E1BEE7;
    color: #4A148C;
}

/* ========================================
   PAGINATION
======================================== */

.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.pagination a,
.pagination span {
    padding: 8px 15px;
    border: 1px solid var(--color-gray);
    color: var(--color-black);
    transition: var(--transition);
}

.pagination a:hover {
    background-color: var(--color-black);
    color: var(--color-white);
}

.pagination .active {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

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

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block !important;
    }

    .cart-link-mobile {
        display: inline-block !important;
    }

    .cart-link-desktop {
        display: none !important;
    }

    .header-content {
        position: relative;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .logo {
        flex: 0 0 auto;
    }

    .header-right {
        display: flex;
        gap: 15px;
        align-items: center;
    }

    .main-nav {
        position: absolute;
        top: 100%;
        left: -20px;
        right: -20px;
        width: calc(100% + 40px);
        background-color: var(--color-black);
        flex-direction: column;
        padding: 0;
        gap: 0 !important;
        align-items: stretch;
        margin-top: 20px;
        border-top: 1px solid rgba(255,255,255,0.2);
        box-shadow: 0 4px 6px rgba(0,0,0,0.3);
        z-index: 1000;
    }

    .main-nav a,
    .main-nav form {
        width: 100%;
        padding: 15px 20px;
        margin: 0;
        border-bottom: 1px solid rgba(255,255,255,0.1);
        display: block;
        text-transform: none;
    }

    .main-nav a:last-child,
    .main-nav form:last-child {
        border-bottom: none;
    }

    .main-nav .btn-link {
        width: 100%;
        text-align: left;
        padding: 15px 20px;
        display: block;
        text-transform: none;
    }

    .main-nav .cart-link {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .hero-section h1 {
        font-size: 32px;
    }

    .categories-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }

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

    .checkout-layout {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .cart-table {
        font-size: 12px;
    }

    .product-cell {
        flex-direction: column;
        align-items: flex-start;
    }

    .filters-form {
        flex-direction: column;
    }

    .filters-form select,
    .filters-form input[type="text"] {
        width: 100%;
        min-width: unset;
    }
}