:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #10b981;
    --dark: #1e293b;
    --darker: #0f172a;
    --light: #f8fafc;
    --gray: #64748b;
    --gray-light: #e2e8f0;
    --text: #334155;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--darker);
    color: var(--light);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon i {
    font-size: 18px;
    color: white;
}

.logo h1 {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

nav a {
    color: var(--gray);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 15px;
}

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

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

.header-actions i {
    font-size: 18px;
    cursor: pointer;
    transition: color 0.3s;
    color: var(--gray);
}

.header-actions i:hover {
    color: var(--light);
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--secondary);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.cart-icon {
    position: relative;
}

.btn-account {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border: 1px solid rgba(99, 102, 241, 0.3);
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 14px;
}

.btn-account:hover {
    background: rgba(99, 102, 241, 0.2);
}

.mobile-menu {
    display: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--gray);
}

/* Hero Section */
.hero {
    padding: 100px 0 80px;
    background: linear-gradient(135deg, var(--darker) 0%, rgba(30, 41, 59, 0.8) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--light) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.hero p {
    font-size: 18px;
    color: var(--gray);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 14px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 15px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* Products */
.products {
    padding: 60px 0;
}

.products-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
    gap: 20px;
}

.section-title {
    text-align: left;
    margin-bottom: 0;
    flex: 1;
}

.section-title h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 10px;
}

.section-title p {
    color: var(--gray);
    max-width: 600px;
}

/* Filtros de Produtos */
.products-filter {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-btn {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--gray);
    padding: 10px 16px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.filter-btn:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary);
    color: var(--light);
}

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

.filter-link {
    cursor: pointer;
}

/* Grid de Produtos - 4 por linha */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.product-card {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s;
    position: relative;
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.product-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--secondary);
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    z-index: 2;
}

.product-img {
    height: 160px;
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
}

.product-img i {
    font-size: 48px;
    color: var(--primary);
    z-index: 1;
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    font-size: 16px;
    margin-bottom: 10px;
    line-height: 1.4;
    height: 48px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.product-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    font-size: 13px;
    color: var(--gray);
}

.product-meta i {
    font-size: 12px;
}

.product-price {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.current-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--light);
}

.original-price {
    font-size: 14px;
    color: var(--gray);
    text-decoration: line-through;
}

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

.btn-cart {
    flex: 1;
    background: var(--primary);
    color: white;
    border: none;
    padding: 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.3s;
    font-weight: 600;
    font-size: 14px;
}

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

.btn-wishlist {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray);
}

.btn-wishlist:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--light);
}

/* Features */
.features {
    padding: 80px 0;
    background: rgba(15, 23, 42, 0.5);
}

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

.feature-card {
    text-align: center;
    padding: 30px 20px;
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.feature-icon i {
    font-size: 28px;
    color: var(--primary);
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--gray);
    font-size: 15px;
}

/* Footer */
footer {
    background: rgba(15, 23, 42, 0.9);
    padding: 60px 0 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

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

.footer-col ul {
    list-style: none;
}

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

.footer-col a {
    color: var(--gray);
    text-decoration: none;
    transition: color 0.3s;
    font-size: 14px;
}

.footer-col a:hover {
    color: var(--light);
}

.footer-description {
    color: var(--gray);
    margin-bottom: 20px;
    font-size: 14px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
    color: var(--gray);
}

.social-links a:hover {
    background: var(--primary);
    color: white;
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--gray);
    font-size: 14px;
}

/* Modal de Checkout */
.checkout-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 10000;
    overflow-y: auto;
}

.checkout-content {
    background: var(--darker);
    margin: 50px auto;
    padding: 0;
    width: 90%;
    max-width: 500px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.checkout-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.checkout-header h2 {
    font-size: 20px;
    font-weight: 600;
}

.close-checkout {
    background: none;
    border: none;
    color: var(--gray);
    font-size: 24px;
    cursor: pointer;
    transition: color 0.3s;
}

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

.checkout-body {
    padding: 20px;
}

.product-summary {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    padding: 15px;
    background: rgba(30, 41, 59, 0.5);
    border-radius: 8px;
}

.product-icon {
    width: 50px;
    height: 50px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-icon i {
    font-size: 20px;
    color: var(--primary);
}

.product-details h4 {
    font-size: 16px;
    margin-bottom: 5px;
}

.product-details .price {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 12px 15px;
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: var(--light);
    font-size: 14px;
}

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

.payment-methods {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.payment-method {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    padding: 15px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.payment-method:hover, .payment-method.active {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.payment-method i {
    font-size: 24px;
    margin-bottom: 8px;
    color: var(--primary);
}

.payment-method span {
    font-size: 12px;
    font-weight: 500;
}

.payment-info {
    text-align: center;
    margin-bottom: 15px;
    font-size: 14px;
    color: var(--gray);
}

.card-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.btn-checkout {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    padding: 15px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
}

.btn-checkout:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

.btn-checkout:disabled {
    background: var(--gray);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.success-message {
    display: none;
    text-align: center;
    padding: 40px 20px;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.success-icon i {
    font-size: 36px;
    color: white;
}

.order-info {
    margin-top: 20px;
    padding: 15px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 8px;
}

.order-note {
    font-size: 12px;
    color: var(--gray);
    margin-top: 5px;
}

.loading {
    display: none;
    text-align: center;
    padding: 40px 20px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-left: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

/* Notificação */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--secondary);
    color: white;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    z-index: 10001;
    display: none;
    align-items: center;
    gap: 10px;
    max-width: 400px;
}

.notification.error {
    background: #ef4444;
}

/* Responsive */
@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-wrap: wrap;
    }
    
    nav {
        display: none;
        width: 100%;
        margin-top: 20px;
    }
    
    nav.active {
        display: block;
    }
    
    nav ul {
        flex-direction: column;
        gap: 15px;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .products-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    
    .products-filter {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 10px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .card-details {
        grid-template-columns: 1fr;
    }
    
    .payment-methods {
        grid-template-columns: 1fr;
    }
    
    .notification {
        left: 20px;
        right: 20px;
        max-width: none;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
}