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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --border-color: #e5e7eb;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
}

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

/* Header */
header {
    background: white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

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

.logo a {
    color: var(--primary-color);
    text-decoration: none;
    display: inline-block;
}

.logo-img {
    height: 30px;
    width: auto;
    display: block;
}

nav {
    display: flex;
    gap: 2rem;
}

nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 50%, #06b6d4 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
}

.hero-content h2 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: white;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

/* Product Section */
.product-section {
    padding: 5rem 0;
    background: var(--bg-light);
}

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

.product-image {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    align-self: flex-start;
}

.product-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

.image-placeholder {
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    color: var(--text-light);
    padding: 2rem;
}

.image-placeholder p {
    font-size: 1.2rem;
    margin: 0.5rem 0;
}

.image-note {
    font-size: 0.9rem;
}

.product-details h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.product-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.compatibility-note {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    padding: 1rem;
    background: #f3f4f6;
    border-left: 3px solid var(--primary-color);
    border-radius: 4px;
}

.compatibility-note strong {
    color: var(--text-color);
}

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

.colors-section h3 {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.colors-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.colors-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-color);
}

.colors-list li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.buy-button {
    display: inline-block;
    width: 100%;
    padding: 1.25rem 2rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    text-align: center;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: background 0.2s, transform 0.2s;
    margin-bottom: 0.5rem;
}

.buy-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.secure-checkout {
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* About Section */
.about-section {
    padding: 4rem 0;
    background: white;
    min-height: calc(100vh - 200px);
}

.about-section h1,
.about-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--text-color);
}

.about-section h2 {
    font-size: 2rem;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-section p {
    max-width: 800px;
    margin: 0 auto 1.5rem auto;
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    line-height: 1.8;
}

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

/* Footer */
footer {
    background: var(--text-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    transition: opacity 0.2s;
}

.footer-links a:hover {
    opacity: 0.8;
}

.footer-contact {
    margin: 1rem 0;
}

.footer-contact p {
    color: white;
    font-size: 0.9rem;
    margin: 0;
}

.footer-contact a {
    color: white;
    text-decoration: none;
    transition: opacity 0.2s;
}

.footer-contact a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.social-links {
    margin: 1.5rem 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    transition: opacity 0.2s;
    padding: 0.5rem 1rem;
    border-radius: 6px;
}

.social-links a:hover {
    opacity: 0.8;
    background: rgba(255, 255, 255, 0.1);
}

.social-links svg {
    width: 24px;
    height: 24px;
}

/* Policy Pages */
.policy-section {
    padding: 4rem 0;
    background: white;
    min-height: calc(100vh - 200px);
}

.policy-section h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.last-updated {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.policy-content {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.policy-content h2 {
    font-size: 1.5rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.policy-content h3 {
    font-size: 1.2rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.policy-content p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

.policy-content ul {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
    color: var(--text-light);
}

.policy-content li {
    margin-bottom: 0.5rem;
}

.policy-content a {
    color: var(--primary-color);
    text-decoration: none;
}

.policy-content a:hover {
    text-decoration: underline;
}

/* Contact Page */
.contact-section {
    padding: 4rem 0;
    background: white;
    min-height: calc(100vh - 200px);
}

.contact-section h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-align: center;
    color: var(--text-color);
}

.contact-intro {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.contact-info h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.contact-item {
    margin-bottom: 2rem;
}

.contact-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.contact-item p {
    color: var(--text-light);
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-form-container h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.contact-form {
    display: flex;
    flex-direction: column;
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

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

.submit-button {
    padding: 1rem 2rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
}

.submit-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.faq-section {
    max-width: 800px;
    margin: 0 auto;
    padding-top: 3rem;
    border-top: 1px solid var(--border-color);
}

.faq-section h2 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: var(--text-color);
}

.faq-item {
    margin-bottom: 2rem;
}

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

.faq-item p {
    color: var(--text-light);
    line-height: 1.8;
}

.faq-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.faq-item a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .product-details h1 {
        font-size: 2rem;
    }
    
    nav {
        gap: 1rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }

    .policy-section h1 {
        font-size: 2rem;
    }
}