/* Bentley S1 Luxury Automotive Website Styles */

/* CSS Reset & Variables */
:root {
    /* Luxury Color Palette */
    --primary-black: #0a0a0a;
    --secondary-black: #1a1a1a;
    --charcoal: #2a2a2a;
    --pure-white: #ffffff;
    --cream-white: #fafafa;
    --gold-accent: #d4af37;
    --gold-light: #e6c757;
    --silver: #c0c0c0;
    --text-light: #666666;
    --text-medium: #444444;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-subtle: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-strong: 0 8px 30px rgba(0, 0, 0, 0.2);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-medium);
    background-color: var(--pure-white);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--primary-black);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.4rem; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-medium);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo h1 {
    color: var(--pure-white);
    font-size: 1.8rem;
    font-weight: 300;
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--pure-white);
    text-decoration: none;
    font-weight: 400;
    letter-spacing: 1px;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--gold-accent);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold-accent);
    transition: var(--transition-fast);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    color: var(--pure-white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--charcoal) 100%);
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--pure-white);
    max-width: 800px;
    padding: 0 var(--spacing-lg);
}

.hero-title {
    font-size: 5rem;
    font-weight: 300;
    letter-spacing: 4px;
    margin-bottom: var(--spacing-sm);
    opacity: 0;
    animation: fadeInUp 1s ease 0.5s forwards;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-xs);
    color: var(--gold-accent);
    opacity: 0;
    animation: fadeInUp 1s ease 0.7s forwards;
}

.hero-years {
    font-size: 1.2rem;
    font-weight: 300;
    letter-spacing: 3px;
    margin-bottom: var(--spacing-xl);
    opacity: 0;
    animation: fadeInUp 1s ease 0.9s forwards;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xxl);
    margin-bottom: var(--spacing-xxl);
    opacity: 0;
    animation: fadeInUp 1s ease 1.1s forwards;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--gold-accent);
    font-family: var(--font-display);
}

.stat-label {
    font-size: 0.9rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--silver);
}

.cta-button {
    background: transparent;
    border: 2px solid var(--gold-accent);
    color: var(--gold-accent);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    opacity: 0;
    animation: fadeInUp 1s ease 1.3s forwards;
}

.cta-button:hover {
    background: var(--gold-accent);
    color: var(--primary-black);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1503376780353-7e6692767b70?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') center/cover;
    opacity: 0.3;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(10, 10, 10, 0.8) 0%, rgba(42, 42, 42, 0.6) 100%);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.section-header h2 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gold-accent);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Heritage Section */
.heritage {
    padding: var(--spacing-xxl) 0;
    background: var(--cream-white);
}

.heritage-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: start;
}

.heritage-item {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.heritage-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--gold-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--pure-white);
}

.heritage-info h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-black);
}

.heritage-info p {
    color: var(--text-medium);
    line-height: 1.7;
}

.heritage-timeline {
    position: relative;
    padding-left: var(--spacing-lg);
}

.heritage-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gold-accent);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
    padding-left: var(--spacing-xl);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 5px;
    width: 16px;
    height: 16px;
    background: var(--gold-accent);
    border-radius: 50%;
    border: 3px solid var(--pure-white);
}

.timeline-year {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gold-accent);
    font-family: var(--font-display);
    margin-bottom: var(--spacing-xs);
}

.timeline-content h4 {
    margin-bottom: var(--spacing-xs);
    color: var(--primary-black);
}

/* Specifications Section */
.specifications {
    padding: var(--spacing-xxl) 0;
    background: var(--pure-white);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.spec-category {
    background: var(--cream-white);
    padding: var(--spacing-xl);
    border-radius: 10px;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition-smooth);
}

.spec-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.spec-category h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    color: var(--primary-black);
    font-size: 1.4rem;
}

.spec-category h3 i {
    color: var(--gold-accent);
}

.spec-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid #eee;
}

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

.spec-label {
    font-weight: 500;
    color: var(--text-medium);
}

.spec-value {
    font-weight: 600;
    color: var(--primary-black);
}

/* Gallery Section */
.gallery {
    padding: var(--spacing-xxl) 0;
    background: var(--primary-black);
    color: var(--pure-white);
}

.gallery .section-header h2,
.gallery .section-header p {
    color: var(--pure-white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.gallery-item {
    position: relative;
    height: 300px;
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.gallery-item.large {
    grid-column: span 2;
    height: 400px;
}

.gallery-item:hover {
    transform: scale(1.02);
}

.gallery-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: var(--transition-slow);
}

.gallery-item:hover .gallery-image {
    transform: scale(1.1);
}

/* Gallery Image Backgrounds */
#gallery-1 { background-image: url('https://images.unsplash.com/photo-1503376780353-7e6692767b70?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80'); }
#gallery-2 { background-image: url('https://images.unsplash.com/photo-1549317661-bd32c8ce0db2?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80'); }
#gallery-3 { background-image: url('https://images.unsplash.com/photo-1558618666-fcd25c85cd64?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80'); }
#gallery-4 { background-image: url('https://images.unsplash.com/photo-1552519507-da3b142c6e3d?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80'); }
#gallery-5 { background-image: url('https://images.unsplash.com/photo-1544636331-e26879cd4d9b?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80'); }

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: var(--spacing-lg);
    transform: translateY(100%);
    transition: var(--transition-smooth);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h4 {
    color: var(--pure-white);
    margin-bottom: var(--spacing-xs);
}

.gallery-overlay p {
    color: var(--silver);
    font-size: 0.9rem;
}

/* Variants Section */
.variants {
    padding: var(--spacing-xxl) 0;
    background: var(--cream-white);
}

.variants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.variant-card {
    background: var(--pure-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition-smooth);
}

.variant-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
}

.variant-image {
    height: 250px;
    background-size: cover;
    background-position: center;
}

/* Variant Image Backgrounds */
#variant-1 { background-image: url('https://images.unsplash.com/photo-1503376780353-7e6692767b70?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80'); }
#variant-2 { background-image: url('https://images.unsplash.com/photo-1549317661-bd32c8ce0db2?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80'); }
#variant-3 { background-image: url('https://images.unsplash.com/photo-1558618666-fcd25c85cd64?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80'); }
#variant-4 { background-image: url('https://images.unsplash.com/photo-1552519507-da3b142c6e3d?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80'); }

.variant-content {
    padding: var(--spacing-xl);
}

.variant-content h3 {
    margin-bottom: var(--spacing-md);
    color: var(--primary-black);
}

.variant-content p {
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.variant-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.variant-coachbuilder {
    font-weight: 600;
    color: var(--gold-accent);
    font-size: 0.9rem;
}

.variant-production {
    font-size: 0.85rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Contact Section */
.contact {
    padding: var(--spacing-xxl) 0;
    background: var(--secondary-black);
    color: var(--pure-white);
}

.contact .section-header h2,
.contact .section-header p {
    color: var(--pure-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: start;
}

.contact-info h2 {
    color: var(--pure-white);
    margin-bottom: var(--spacing-lg);
}

.contact-info p {
    color: var(--silver);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--silver);
}

.contact-item i {
    color: var(--gold-accent);
    width: 20px;
}

.contact-form {
    background: var(--charcoal);
    padding: var(--spacing-xl);
    border-radius: 15px;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--pure-white);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid transparent;
    border-radius: 8px;
    background: var(--secondary-black);
    color: var(--pure-white);
    font-family: var(--font-primary);
    transition: var(--transition-fast);
}

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

.submit-button {
    background: var(--gold-accent);
    color: var(--primary-black);
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
    justify-content: center;
}

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

/* Footer */
.footer {
    background: var(--primary-black);
    color: var(--pure-white);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

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

.footer-section h3,
.footer-section h4 {
    color: var(--pure-white);
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    color: var(--silver);
    line-height: 1.7;
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
    color: var(--silver);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    color: var(--silver);
    font-size: 1.2rem;
    transition: var(--transition-fast);
}

.social-links a:hover {
    color: var(--gold-accent);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--charcoal);
    color: var(--silver);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .heritage-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .gallery-item.large {
        grid-column: span 1;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .section-header h2 {
        font-size: 2.2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
        letter-spacing: 2px;
    }
    
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .variants-grid {
        grid-template-columns: 1fr;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .nav-toggle,
    .cta-button,
    .submit-button {
        display: none;
    }
    
    .hero {
        height: auto;
        padding: var(--spacing-xxl) 0;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    h1, h2, h3, h4 {
        page-break-after: avoid;
    }
    
    .section-header {
        page-break-after: avoid;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --primary-black: #000000;
        --pure-white: #ffffff;
        --gold-accent: #ffff00;
    }
}