/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Simmer Brand Colors - Modern tech theme */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --dark-bg: #0f172a;
    --dark-card: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-color: #334155;
    --success: #10b981;
    --error: #ef4444;
    --lazy-white: #fafafa;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

/* Navigation */
.navbar {
    background-color: var(--dark-card);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.nav-brand h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-brand .tagline {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: -5px;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-light);
}

.cart-link {
    position: relative;
}

.cart-count {
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    padding: 2px 6px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 5px;
}

/* Main Content */
main {
    flex: 1;
    padding: 2rem 0;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--dark-card), var(--dark-bg));
    padding: 4rem 0;
    text-align: center;
    border-radius: 12px;
    margin-bottom: 3rem;
    border: 1px solid var(--border-color);
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* Newsletter Section */
.newsletter-container {
    margin-top: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.newsletter-form {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.newsletter-input {
    flex: 1;
    min-width: 250px;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s;
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.newsletter-input::placeholder {
    color: var(--text-secondary);
}

.newsletter-btn {
    padding: 0.75rem 1.5rem;
    white-space: nowrap;
}

.newsletter-thank-you {
    text-align: center;
    animation: fadeIn 0.5s ease-out;
}

.newsletter-thank-you p {
    font-size: 1.2rem;
    color: var(--success);
    font-weight: 600;
    margin: 0;
}

/* Products Section */
.products h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.product-card {
    background-color: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.product-image {
    width: 100%;
    height: 250px;
    background: var(--lazy-white);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transform: scale(0.85);
    transition: transform 0.3s ease;
}

.product-card:hover .product-image img {
    transform: scale(0.95);
}

.product-info {
    padding: 1.5rem;
}

.product-name {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.product-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

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

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

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-light);
    border: 2px solid var(--primary-color);
}

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

/* Product Detail Page */
.product-detail {
    padding: 2rem 0;
}

.back-link {
    color: var(--primary-light);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 2rem;
    display: inline-block;
    transition: color 0.3s;
}

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

.product-detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    background-color: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    margin-top: 1rem;
}

.product-detail-image {
    width: 100%;
    height: 400px;
    background: var(--lazy-white);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

.product-detail-info h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.product-detail-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.size-selector {
    margin-bottom: 2rem;
}

.size-selector label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.size-options {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.size-option {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    background-color: transparent;
    color: var(--text-primary);
}

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

.size-option.selected {
    border-color: var(--primary-color);
    background-color: var(--primary-color);
    color: white;
}

.quantity-selector {
    margin-bottom: 2rem;
}

.quantity-selector label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.quantity-btn {
    width: 40px;
    height: 40px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: transparent;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s;
}

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

.quantity-input {
    width: 60px;
    height: 40px;
    text-align: center;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    font-size: 1rem;
}

/* Cart Page */
.cart-section,
.checkout-section,
.confirmation-section {
    padding: 2rem 0;
}

.cart-section h2,
.checkout-section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.cart-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.cart-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.cart-item {
    background-color: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: grid;
    grid-template-columns: 100px 1fr auto;
    gap: 1.5rem;
    align-items: center;
}

.cart-item-image {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.cart-item-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transform: scale(0.85);
}

.cart-item-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.cart-item-details {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.cart-item-price {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-light);
    margin-top: 0.5rem;
}

.cart-item-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-end;
}

.remove-btn {
    background-color: transparent;
    color: var(--error);
    border: 1px solid var(--error);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.9rem;
}

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

.empty-cart {
    text-align: center;
    padding: 4rem 2rem;
    background-color: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.empty-cart h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.empty-cart p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.cart-summary,
.order-summary {
    background-color: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    height: fit-content;
    position: sticky;
    top: 100px;
}

.cart-summary h3,
.order-summary h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.summary-row.total {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 1rem;
}

.cart-summary hr,
.order-summary hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 1rem 0;
}

.cart-summary .btn,
.order-summary .btn {
    width: 100%;
    margin-top: 1rem;
}

#checkout-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Checkout Page */
.info-banner {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(251, 191, 36, 0.15));
    border: 2px solid var(--accent-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    animation: fadeIn 0.5s ease-out;
}

.info-banner-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.info-banner-content {
    flex: 1;
}

.info-banner-content strong {
    color: var(--accent-color);
    font-size: 1.1rem;
    display: block;
    margin-bottom: 0.5rem;
}

.info-banner-content p {
    color: var(--text-primary);
    margin: 0;
    line-height: 1.6;
}

.info-banner-content p strong {
    color: #fbbf24;
    font-size: 1rem;
    display: inline;
    text-decoration: underline;
}

.checkout-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.checkout-form {
    background-color: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
}

.form-section {
    margin-bottom: 2rem;
}

.form-section h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

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

.checkout-form .btn {
    width: 100%;
    margin-top: 1rem;
}

.order-items {
    margin-bottom: 1.5rem;
}

.order-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.order-item:last-child {
    border-bottom: none;
}

.order-item-name {
    flex: 1;
}

.order-item-quantity {
    color: var(--text-secondary);
    margin: 0 1rem;
}

.order-item-price {
    font-weight: 600;
    color: var(--text-primary);
}

/* Confirmation Page */
.confirmation-content {
    text-align: center;
    background-color: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 4rem 2rem;
    max-width: 600px;
    margin: 0 auto;
}

.success-icon {
    width: 80px;
    height: 80px;
    background-color: var(--success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
    margin: 0 auto 2rem;
}

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

.confirmation-content p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.order-number {
    background-color: var(--dark-bg);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.order-details {
    text-align: left;
    margin-bottom: 2rem;
}

.order-details h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.confirmation-actions {
    margin-top: 2rem;
}

/* Footer */
footer {
    background-color: var(--dark-card);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: 4rem;
    color: var(--text-secondary);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.footer-section h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-address {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.footer-contact {
    line-height: 1.8;
}

.footer-contact a {
    color: var(--primary-light);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-contact a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    margin: 0;
}

/* Settings Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity 0.3s;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-content {
    background-color: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    margin: 0;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.3s;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: var(--primary-light);
}

.modal-body {
    padding: 2rem;
}

.setting-item {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

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

.setting-header {
    margin-bottom: 1rem;
}

.toggle-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    gap: 1rem;
}

.toggle-label input[type="checkbox"] {
    position: relative;
    width: 50px;
    height: 26px;
    -webkit-appearance: none;
    appearance: none;
    background-color: var(--border-color);
    border-radius: 13px;
    outline: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

.toggle-label input[type="checkbox"]::before {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background-color: white;
    top: 2px;
    left: 2px;
    transition: transform 0.3s;
}

.toggle-label input[type="checkbox"]:checked {
    background-color: var(--primary-color);
}

.toggle-label input[type="checkbox"]:checked::before {
    transform: translateX(24px);
}

.setting-details {
    margin-top: 1rem;
    padding: 1rem;
    background-color: var(--dark-bg);
    border-radius: 8px;
    display: none;
}

.setting-details.visible {
    display: block;
    animation: fadeIn 0.3s ease-out;
}

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

.setting-details label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.setting-details input[type="text"] {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--dark-card);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: 'Courier New', monospace;
    transition: border-color 0.3s;
}

.setting-details input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
}

.setting-details small {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.setting-description {
    margin-top: 0.5rem;
}

.setting-description p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border-color);
}

.modal-footer .btn {
    padding: 0.75rem 1.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 1rem;
    }

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

    .cart-content,
    .checkout-content {
        grid-template-columns: 1fr;
    }

    .cart-summary,
    .order-summary {
        position: static;
    }

    .hero h2 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .modal-content {
        width: 95%;
        max-height: 95vh;
    }

    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 1rem;
    }

    .toggle-label {
        font-size: 1rem;
    }
}