/* Honda Motorcycles - Premium Design System */
/* Palette: Volcanic Glass - Dark, aggressive, motorsport energy */

:root {
    /* Core Colors */
    --color-bg: #0A0A0A;
    --color-surface: #141414;
    --color-surface-elevated: #1A1A1A;
    --color-border: #2A2A2A;
    
    /* Accent Colors - Racing Red & Energy Orange */
    --color-primary: #FF1A1A;
    --color-primary-hover: #FF3333;
    --color-secondary: #FF6B2B;
    --color-accent: #FFB088;
    
    /* Text Colors */
    --color-text: #FFFFFF;
    --color-text-secondary: #A0A0A0;
    --color-text-muted: #666666;
    
    /* Typography */
    --font-display: 'Clash Display', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) var(--space-xl);
    background: linear-gradient(to bottom, rgba(10,10,10,0.95), transparent);
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10,10,10,0.98);
    backdrop-filter: blur(20px);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--color-text);
}

.nav-links {
    display: flex;
    gap: var(--space-lg);
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-text);
}

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

.nav-cta {
    padding: var(--space-xs) var(--space-md);
    background: var(--color-primary);
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    border-radius: 4px;
    transition: var(--transition-fast);
}

.nav-cta:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-3xl) var(--space-xl);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(255,26,26,0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(255,107,43,0.1) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 1;
}

.hero-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: rgba(255,26,26,0.1);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 700;
    line-height: 0.95;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    max-width: 500px;
    margin-bottom: var(--space-lg);
}

.hero-actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    border-radius: 4px;
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-text);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255,26,26,0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-text);
    background: rgba(255,255,255,0.05);
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-text);
}

.btn-outline:hover {
    background: var(--color-text);
    color: var(--color-bg);
}

.btn-large {
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
}

/* Hero Stats */
.hero-stats {
    position: absolute;
    bottom: var(--space-xl);
    right: var(--space-xl);
    display: flex;
    gap: var(--space-xl);
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* Featured Section */
.featured {
    padding: var(--space-3xl) var(--space-xl);
    background: var(--color-surface);
}

.section-header {
    max-width: 1400px;
    margin: 0 auto var(--space-2xl);
    text-align: center;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.models-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.model-card {
    background: var(--color-surface-elevated);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition-base);
    border: 1px solid var(--color-border);
}

.model-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.model-card.featured-card {
    grid-column: span 2;
    grid-row: span 2;
}

.model-image {
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    position: relative;
    overflow: hidden;
}

.model-card.featured-card .model-image {
    aspect-ratio: 16/10;
}

.model-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(10,10,10,0.8) 0%, transparent 50%);
    z-index: 1;
}

.bike-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.model-card:hover .bike-img {
    transform: scale(1.05);
}

.model-info {
    padding: var(--space-md);
}

.model-category {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-secondary);
    margin-bottom: var(--space-xs);
}

.model-name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.model-card.featured-card .model-name {
    font-size: 2rem;
}

.model-desc {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.model-link {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    transition: var(--transition-fast);
}

.model-link:hover {
    color: var(--color-primary);
    gap: var(--space-sm);
}

/* Racing Section */
.racing {
    padding: var(--space-3xl) var(--space-xl);
    background: var(--color-bg);
    position: relative;
}

.racing::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    opacity: 0.3;
}

.racing-content {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.racing-desc {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: var(--space-md) auto var(--space-xl);
}

.racing-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-2xl);
    margin-top: var(--space-xl);
}

.racing-stat {
    text-align: center;
}

.racing-number {
    display: block;
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.racing-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: var(--space-xs);
}

/* Technology Section */
.technology {
    padding: var(--space-3xl) var(--space-xl);
    background: var(--color-surface);
}

.tech-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.tech-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.tech-card {
    padding: var(--space-lg);
    background: var(--color-surface-elevated);
    border-radius: 8px;
    border: 1px solid var(--color-border);
    transition: var(--transition-base);
}

.tech-card:hover {
    border-color: var(--color-secondary);
    transform: translateY(-4px);
}

.tech-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.tech-desc {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    padding: var(--space-3xl) var(--space-xl);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    text-align: center;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.cta-desc {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: var(--space-xl);
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.cta-section .btn-primary {
    background: var(--color-text);
    color: var(--color-primary);
}

.cta-section .btn-primary:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.cta-section .btn-outline {
    border-color: var(--color-text);
}

.cta-section .btn-outline:hover {
    background: var(--color-text);
    color: var(--color-primary);
}

/* Footer */
.footer {
    padding: var(--space-2xl) var(--space-xl) var(--space-lg);
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand {
    flex-shrink: 0;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    display: block;
    margin-bottom: var(--space-xs);
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-style: italic;
}

.footer-links {
    display: flex;
    gap: var(--space-2xl);
}

.footer-column h4 {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.footer-column a {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-text);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* Responsive */
@media (max-width: 1024px) {
    .models-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .model-card.featured-card {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .model-card.featured-card .model-image {
        aspect-ratio: 4/3;
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-stats {
        position: relative;
        bottom: auto;
        right: auto;
        margin-top: var(--space-2xl);
        justify-content: flex-start;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .models-grid {
        grid-template-columns: 1fr;
    }
    
    .model-card.featured-card {
        grid-column: span 1;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .racing-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--space-xl);
    }
    
    .footer-links {
        flex-wrap: wrap;
    }
    
    .hero-actions,
    .cta-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

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

.hero-content > * {
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.hero-content > *:nth-child(1) { animation-delay: 0.1s; }
.hero-content > *:nth-child(2) { animation-delay: 0.2s; }
.hero-content > *:nth-child(3) { animation-delay: 0.3s; }
.hero-content > *:nth-child(4) { animation-delay: 0.4s; }