:root {
    --primary-yellow: #FFD700;
    --bright-yellow: #FFF200;
    --dark-yellow: #DAA520;
    --accent-orange: #FF8C00;
    --dark-blue: #1e3a8a;
    --light-blue: #3b82f6;
    --dark-gray: #2d3748;
    --light-gray: #f8fafc;
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --premium-bg: #fafbfc;
    --card-shadow: 0 8px 32px rgba(0,0,0,0.12);
    --premium-shadow: 0 20px 64px rgba(0,0,0,0.15);
    --content-width: 1200px;
}

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

body {
    font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--premium-bg);
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 40px;
}

/* Header & Navigation */
.navbar {
    background: linear-gradient(135deg, var(--primary-yellow) 0%, var(--bright-yellow) 100%);
    padding: 1rem 0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

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

.logo-img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark-blue);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark-blue);
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    background-color: var(--white);
    color: var(--dark-blue);
    transform: translateY(-2px);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.country-selector select {
    padding: 8px 12px;
    border: 2px solid var(--dark-blue);
    border-radius: 20px;
    background: var(--white);
    color: var(--dark-blue);
    font-weight: 600;
    cursor: pointer;
}

.cart {
    position: relative;
    background: var(--dark-blue);
    color: var(--white);
    padding: 10px 15px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cart:hover {
    transform: scale(1.1);
}

.cart-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--error);
    color: var(--white);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--premium-bg) 0%, var(--white) 100%);
    padding: 120px 0;
    display: flex;
    align-items: center;
    min-height: 70vh;
}

.hero-content {
    max-width: var(--content-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    padding: 0 40px;
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 800;
    color: var(--dark-blue);
    margin-bottom: 24px;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.hero-content p {
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--dark-gray);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 40px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.feature i {
    color: var(--primary-yellow);
    font-size: 1.5rem;
}

.cta-button {
    background: linear-gradient(135deg, var(--primary-yellow) 0%, var(--accent-orange) 100%);
    color: var(--dark-blue);
    padding: 18px 48px;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--card-shadow);
    letter-spacing: -0.01em;
}

.cta-button:hover {
    transform: translateY(-4px);
    box-shadow: var(--premium-shadow);
    filter: brightness(1.05);
}

.hero-img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* Products Section */
.products {
    padding: 120px 0;
    background: var(--white);
}

.products h2 {
    text-align: center;
    font-size: 3rem;
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: 80px;
    letter-spacing: -0.02em;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 40px;
}

.product-card {
    background: var(--white);
    border-radius: 24px;
    padding: 40px;
    box-shadow: var(--card-shadow);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 1px solid rgba(255,255,255,0.8);
}

.product-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--premium-shadow);
}

.product-card.featured {
    border: 2px solid var(--primary-yellow);
    transform: scale(1.08);
    box-shadow: var(--premium-shadow);
}

.featured-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-yellow);
    color: var(--dark-blue);
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9rem;
}

.product-image {
    background: var(--premium-bg);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 32px;
    position: relative;
}

.product-image img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    border-radius: 12px;
}

.product-info h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark-blue);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.currency {
    color: var(--primary-yellow);
}

.features {
    list-style: none;
    margin-bottom: 25px;
}

.features li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(0,0,0,0.06);
    display: flex;
    align-items: center;
    font-weight: 500;
}

.features li::before {
    content: "✓";
    color: var(--success);
    font-weight: bold;
    margin-right: 10px;
}

.installation-options {
    margin-bottom: 25px;
}

.installation-options {
    margin-bottom: 32px;
}

.installation-select {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--light-gray);
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    background: var(--white);
    color: var(--dark-blue);
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 12px;
}

.installation-select:focus {
    outline: none;
    border-color: var(--primary-yellow);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.installation-checkbox {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--premium-bg);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    font-weight: 500;
}

.installation-checkbox:hover {
    background: rgba(255, 215, 0, 0.1);
    border-color: var(--primary-yellow);
}

.add-to-cart {
    width: 100%;
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--light-blue) 100%);
    color: var(--white);
    padding: 18px;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: -0.01em;
}

.add-to-cart:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(30, 58, 138, 0.3);
}

/* Payment Options */
.payment-options {
    padding: 100px 0;
    background: var(--premium-bg);
}

.payment-options h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--dark-blue);
    margin-bottom: 40px;
}

.payment-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.payment-card {
    background: var(--light-gray);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.payment-card:hover {
    transform: translateY(-5px);
}

.payment-card.featured {
    background: linear-gradient(135deg, var(--primary-yellow) 0%, var(--bright-yellow) 100%);
    color: var(--dark-blue);
}

.payment-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.discount-badge,
.monthly-info {
    background: var(--success);
    color: var(--white);
    padding: 8px 15px;
    border-radius: 20px;
    font-weight: bold;
    display: inline-block;
    margin-top: 15px;
}

.warranty-section {
    background: var(--light-gray);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
}

.warranty-section h3 {
    color: var(--dark-blue);
    margin-bottom: 20px;
}

.warranty-option {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    cursor: pointer;
}

/* Footer */
footer {
    background: var(--dark-blue);
    color: var(--white);
    padding: 40px 0 20px;
}

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

.footer-section h4 {
    color: var(--primary-yellow);
    margin-bottom: 15px;
}

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

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 0 20px;
        gap: 50px;
    }
    
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        padding: 0 20px;
    }
    
    .payment-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-features {
        grid-template-columns: 1fr;
    }
    
    .hero {
        padding: 80px 0;
    }
    
    .products {
        padding: 80px 0;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .product-card {
        padding: 24px;
    }
    
    .nav-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .product-card.featured {
        transform: none;
    }
}

/* Import premium fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');