/* Modern T-Shirt Brand Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Premium Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* Collection Header */
.collection-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 4rem 0;
    color: white;
    margin-bottom: 3rem;
}

.collection-info {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: center;
}

.collection-image {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.collection-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.collection-image:hover img {
    transform: scale(1.05);
}

.collection-details h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.collection-details p {
    font-size: 1.2rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.collection-meta {
    display: flex;
    gap: 2rem;
    font-size: 1rem;
    font-weight: 600;
}

.collection-meta span {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    backdrop-filter: blur(10px);
}

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

.logo {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.nav {
    display: flex;
    gap: 1.5rem;
}

.nav-btn {
    background: transparent;
    border: 2px solid transparent;
    color: #1a1a1a;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.95rem;
    font-weight: 600;
    position: relative;
    overflow: hidden;
}

.nav-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
}

.nav-btn:hover::before {
    left: 0;
}

.nav-btn:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.nav-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.cart-count {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    border-radius: 50%;
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 700;
    margin-left: 0.5rem;
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
}

/* Main Content */
.main {
    min-height: calc(100vh - 100px);
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    color: #1a1a1a;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #1a1a1a 0%, #4a5568 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #718096;
    margin-bottom: 2.5rem;
    line-height: 1.6;
    font-weight: 500;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-secondary {
    background: transparent;
    border: 2px solid #667eea;
    color: #667eea;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-secondary:hover {
    background: #667eea;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.3);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-container {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-image-container:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.hero-image-container img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    display: block;
}

/* About Section */
.about {
    padding: 6rem 0;
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 3rem;
    font-weight: 800;
    color: #1a1a1a;
    margin-bottom: 2rem;
    letter-spacing: -0.03em;
}

.about-text p {
    font-size: 1.1rem;
    color: #718096;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.feature i {
    font-size: 1.5rem;
    color: #667eea;
    margin-top: 0.25rem;
}

.feature h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 0.5rem;
}

.feature p {
    font-size: 0.95rem;
    color: #718096;
    line-height: 1.5;
    margin: 0;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d3748 100%);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-title {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: white;
}

.footer-section p {
    color: #a0aec0;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.social-link:hover {
    background: #667eea;
    transform: translateY(-2px);
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #667eea;
}

.newsletter-form {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.newsletter-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: white;
    font-size: 0.9rem;
}

.newsletter-input::placeholder {
    color: #a0aec0;
}

.newsletter-input:focus {
    outline: none;
    border-color: #667eea;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: #a0aec0;
    margin: 0;
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
}

.footer-bottom-links a {
    color: #a0aec0;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-bottom-links a:hover {
    color: #667eea;
}

.section {
    display: none;
}

.section.active {
    display: block;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 3.5rem;
    font-weight: 800;
    color: #1a1a1a;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #1a1a1a 0%, #4a5568 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    color: #718096;
    font-size: 1.25rem;
    font-weight: 500;
    max-width: 600px;
    margin: 0 auto;
}

/* Loading and error states */
.loading, .error, .no-products, .cart-empty {
    text-align: center;
    padding: 4rem 1rem;
}

.spinner {
    border: 4px solid #f1f5f9;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 2rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error i, .no-products i, .cart-empty i {
    font-size: 4rem;
    color: #ff6b6b;
    margin-bottom: 1.5rem;
}

.no-products i {
    color: #a0aec0;
}

.cart-empty i {
    color: #667eea;
}

.hidden {
    display: none !important;
}

/* Premium Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.product-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.product-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.product-image {
    height: 280px;
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    cursor: pointer;
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    opacity: 0;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 600;
    pointer-events: none;
}

.product-overlay i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-title {
    cursor: pointer;
    transition: color 0.3s ease;
}

.product-title:hover {
    color: #667eea;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-info {
    padding: 2rem;
}

.product-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: #1a1a1a;
    line-height: 1.3;
}

.product-description {
    color: #718096;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.product-meta {
    font-size: 0.85rem;
    color: #a0aec0;
    margin-bottom: 1rem;
    line-height: 1.5;
    font-weight: 500;
}

.product-price {
    font-size: 2rem;
    font-weight: 800;
    color: #667eea;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-price::before {
    content: '$';
    font-size: 1.2rem;
    color: #a0aec0;
}

/* Stock badges */
.stock-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 700;
    z-index: 10;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.stock-badge.in-stock {
    background: rgba(72, 187, 120, 0.95);
    color: white;
}

.stock-badge.low-stock {
    background: rgba(245, 101, 101, 0.95);
    color: white;
}

.stock-badge.out-of-stock {
    background: rgba(113, 128, 150, 0.95);
    color: white;
}

.image-gallery-indicator {
    position: absolute;
    bottom: 15px;
    left: 15px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

/* Premium Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
}

.btn:hover::before {
    left: 0;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.4);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
}

/* Premium Cart Styles */
.cart-items {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.cart-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    margin-bottom: 1rem;
    background: #f8fafc;
    border-radius: 15px;
    border: 2px solid transparent;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    gap: 1.5rem;
}

.cart-item:hover {
    border-color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.15);
}

.cart-item-main {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.cart-item-image {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.cart-item-image-placeholder {
    color: white;
    font-size: 1.5rem;
}

.cart-item-details {
    flex: 1;
}

.cart-item-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 0.3rem;
    line-height: 1.3;
}

.cart-item-price {
    color: #6b7280;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.cart-item-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.cart-item-stock {
    color: #059669;
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.cart-item-stock.low-stock {
    color: #d97706;
}

.cart-item-stock.max-stock {
    color: #dc2626;
}

.stock-warning {
    color: #ff6b6b;
    font-size: 0.85rem;
    font-weight: 700;
    margin-top: 0.25rem;
}

.stock-warning.low-stock {
    color: #d97706;
}

.cart-item-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-shrink: 0;
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: white;
    border-radius: 25px;
    padding: 0.3rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.btn-quantity {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-quantity:hover:not(.disabled) {
    transform: scale(1.1);
    box-shadow: 0 3px 10px rgba(102, 126, 234, 0.4);
}

.btn-quantity.disabled {
    background: #d1d5db;
    cursor: not-allowed;
    transform: none;
}

.quantity-display {
    font-size: 1rem;
    font-weight: 700;
    color: #1f2937;
    min-width: 25px;
    text-align: center;
    padding: 0 0.5rem;
}

.cart-item-total {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.2rem;
}

.total-label {
    font-size: 0.7rem;
    color: #6b7280;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.total-price {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1f2937;
}

.btn-remove {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1rem;
}

.btn-remove:hover {
    background: linear-gradient(135deg, #ee5a24 0%, #ff6b6b 100%);
    transform: scale(1.1);
    box-shadow: 0 8px 20px rgba(255, 107, 107, 0.3);
}

.cart-item-total {
    font-weight: 700;
    color: #667eea;
    font-size: 1.3rem;
}

.cart-summary {
    margin-top: 2.5rem;
    padding-top: 2.5rem;
    border-top: 2px solid #f1f5f9;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 2rem;
    color: #1a1a1a;
}

/* Premium Checkout Styles */
.checkout-container {
    max-width: 700px;
    margin: 0 auto;
}

.checkout-form {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.checkout-form h3 {
    margin-bottom: 2rem;
    color: #1a1a1a;
    font-size: 1.8rem;
    font-weight: 700;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: #1a1a1a;
    font-size: 1rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: #f8fafc;
    color: #1a1a1a;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.order-summary {
    margin-top: 2.5rem;
    padding-top: 2.5rem;
    border-top: 2px solid #f1f5f9;
}

.order-summary h3 {
    margin-bottom: 1.5rem;
    color: #1a1a1a;
    font-size: 1.5rem;
    font-weight: 700;
}

.checkout-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f1f5f9;
    font-weight: 500;
}

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

.order-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 800;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 2px solid #f1f5f9;
    color: #1a1a1a;
}

/* Premium Success Section */
.success-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
}

.success-card {
    background: white;
    border-radius: 20px;
    padding: 4rem;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.success-icon {
    font-size: 5rem;
    color: #48bb78;
    margin-bottom: 2rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.success-card h2 {
    color: #1a1a1a;
    margin-bottom: 1rem;
    font-size: 2.5rem;
    font-weight: 800;
}

.success-card p {
    color: #718096;
    margin-bottom: 2.5rem;
    font-size: 1.1rem;
    line-height: 1.6;
}

.success-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* Premium Toast Notifications */
.toast {
    position: fixed;
    top: 30px;
    right: 30px;
    background: white;
    color: #1a1a1a;
    padding: 1.25rem 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 1rem;
    z-index: 1000;
    animation: slideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
}

.toast.success {
    border-left: 4px solid #48bb78;
}

.toast.error {
    border-left: 4px solid #ff6b6b;
}

.toast.info {
    border-left: 4px solid #667eea;
}

.toast-close {
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    color: #a0aec0;
    padding: 0;
    width: 25px;
    height: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.toast-close:hover {
    color: #1a1a1a;
    background: #f1f5f9;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Product Detail Modal */
.product-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: 20px;
    max-width: 1000px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    margin: 2rem;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(0, 0, 0, 0.1);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1a1a1a;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
}

.modal-close:hover {
    background: rgba(0, 0, 0, 0.2);
    transform: scale(1.1);
}

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    padding: 3rem;
}

.product-detail-images {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.main-image {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.main-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
    border-radius: 15px;
}

.image-thumbnails {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.image-thumbnail {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.image-thumbnail:hover {
    border-color: #667eea;
    transform: scale(1.05);
}

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

.product-detail-info h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: #1a1a1a;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.product-detail-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.product-detail-meta span {
    background: #f1f5f9;
    color: #718096;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.product-detail-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: #667eea;
    margin-bottom: 1.5rem;
}

.product-detail-info p {
    font-size: 1.1rem;
    color: #718096;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.product-detail-actions {
    margin-bottom: 2rem;
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.quantity-selector label {
    font-weight: 600;
    color: #1a1a1a;
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-detail-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.product-detail-features .feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #718096;
    font-size: 0.95rem;
}

.product-detail-features .feature i {
    color: #667eea;
    font-size: 1.1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .nav {
        gap: 1rem;
    }
    
    .nav-btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .section-header h2 {
        font-size: 2.5rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .cart-item {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
        text-align: center;
    }
    
    .cart-item-main {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    
    .cart-item-actions {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
    
    .quantity-controls {
        order: 1;
    }
    
    .cart-item-total {
        order: 2;
        align-items: center;
    }
    
    .btn-remove {
        order: 3;
    }
    
    .checkout-form {
        padding: 2rem;
    }
    
    .success-card {
        padding: 3rem 2rem;
        margin: 1rem;
    }
    
    .toast {
        left: 20px;
        right: 20px;
        top: 20px;
    }
    
    /* Hero Section Mobile */
    .hero {
        padding: 4rem 0;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-image-container {
        transform: none;
    }
    
    /* About Section Mobile */
    .about {
        padding: 4rem 0;
    }

    /* Collection Header Mobile */
    .collection-info {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .collection-details h1 {
        font-size: 2rem;
    }

    .collection-details p {
        font-size: 1rem;
    }

    .collection-meta {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .about-text h2 {
        font-size: 2.5rem;
    }
    
    .about-features {
        text-align: left;
    }
    
    /* Footer Mobile */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    /* Product Modal Mobile */
    .product-detail {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 2rem;
    }
    
    .product-detail-info h1 {
        font-size: 2rem;
    }
    
    .product-detail-price {
        font-size: 2rem;
    }
    
    .main-image img {
        height: 250px;
    }
    
    .image-thumbnail {
        width: 60px;
        height: 60px;
    }

    .modal-content {
        max-width: 95vw;
        max-height: 95vh;
        margin: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }
    
    .main {
        padding: 2rem 0;
    }
    
    .section-header {
        margin-bottom: 3rem;
    }
    
    .section-header h2 {
        font-size: 2.2rem;
    }
    
    .product-info {
        padding: 1.5rem;
    }
    
    .cart-items,
    .checkout-form {
        padding: 1.5rem;
    }
    
    .btn {
        padding: 0.875rem 1.75rem;
        font-size: 0.95rem;
    }
}