/* ============================================
   IRON & THROTTLE - Motorcycle Showroom
   Design System: Brutalist Industrial
   ============================================ */

/* CSS Variables */
:root {
    /* Colors - Brutalist Industrial */
    --color-bg: #0a0a0a;
    --color-bg-elevated: #141414;
    --color-bg-card: #1a1a1a;
    --color-text: #f5f5f5;
    --color-text-muted: #888888;
    --color-text-dim: #555555;
    --color-accent: #c9a227;
    --color-accent-hover: #d4b43a;
    --color-border: #2a2a2a;
    --color-border-light: #333333;
    
    /* Typography */
    --font-display: 'Bebas Neue', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
}

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

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

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

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

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

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) var(--space-lg);
    transition: var(--transition-base);
}

.nav.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.1em;
}

.logo-iron {
    color: var(--color-text);
}

.logo-divider {
    color: var(--color-accent);
}

.logo-throttle {
    color: var(--color-text);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    list-style: none;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: var(--transition-base);
}

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

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

.nav-cta {
    background: var(--color-accent);
    color: var(--color-bg) !important;
    padding: 0.75rem 1.5rem;
    border-radius: 0;
    font-weight: 600;
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    background: var(--color-accent-hover);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-base);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: var(--space-3xl) var(--space-lg);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 30% 20%, rgba(201, 162, 39, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(201, 162, 39, 0.05) 0%, transparent 50%),
        linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-elevated) 100%);
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
    mix-blend-mode: overlay;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    position: relative;
    z-index: 1;
}

.hero-subtitle {
    font-family: var(--font-display);
    font-size: 1rem;
    letter-spacing: 0.3em;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(4rem, 12vw, 10rem);
    line-height: 0.9;
    letter-spacing: 0.02em;
    margin-bottom: var(--space-lg);
}

.title-line {
    display: block;
}

.title-line:last-child {
    color: var(--color-accent);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 500px;
    margin: 0 auto var(--space-xl);
    font-weight: 300;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-border-light);
}

.btn-outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-full {
    width: 100%;
}

/* Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.scroll-text {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-text-dim);
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.8); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ============================================
   STATS BAR
   ============================================ */
.stats-bar {
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-xl) var(--space-lg);
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    text-align: center;
}

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

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    color: var(--color-accent);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ============================================
   SECTIONS - COMMON
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-header.light {
    color: var(--color-text);
}

.section-tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.875rem;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    line-height: 1;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.section-title.light {
    color: var(--color-text);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    font-weight: 300;
}

/* ============================================
   COLLECTION SECTION
   ============================================ */
.collection {
    padding: var(--space-3xl) var(--space-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.collection-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.bike-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    transition: var(--transition-base);
    overflow: hidden;
}

.bike-card:hover {
    border-color: var(--color-border-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.bike-card.featured {
    grid-column: span 2;
    grid-row: span 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.bike-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
}

.bike-card.featured .bike-image {
    aspect-ratio: auto;
    height: 100%;
}

.bike-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.bike-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(255,255,255,0.02) 10px,
            rgba(255,255,255,0.02) 20px
        );
}

.bike-model {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.1em;
    color: var(--color-text-dim);
    text-transform: uppercase;
    z-index: 1;
}

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

.bike-badge {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    background: var(--color-accent);
    color: var(--color-bg);
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

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

.bike-card.featured .bike-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-xl);
}

.bike-name {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
    color: var(--color-text);
}

.bike-card.featured .bike-name {
    font-size: 1.75rem;
}

.bike-year {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.bike-desc {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.bike-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-sm);
    border-top: 1px solid var(--color-border);
}

.bike-price {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-accent);
}

.bike-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    transition: var(--transition-fast);
}

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

.collection-cta {
    text-align: center;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    background: var(--color-bg-elevated);
    padding: var(--space-3xl) var(--space-lg);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.services-content {
    max-width: 1200px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.service-card {
    text-align: center;
    padding: var(--space-xl);
    border: 1px solid var(--color-border);
    transition: var(--transition-base);
}

.service-card:hover {
    border-color: var(--color-accent);
    background: var(--color-bg-card);
}

.service-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-md);
    color: var(--color-accent);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.service-desc {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: var(--space-3xl) var(--space-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-visual {
    position: relative;
}

.about-image {
    position: relative;
    z-index: 1;
}

.about-placeholder {
    aspect-ratio: 4/5;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.about-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 30% 30%, rgba(201, 162, 39, 0.1) 0%, transparent 50%),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 2px,
            rgba(255,255,255,0.02) 2px,
            rgba(255,255,255,0.02) 4px
        );
}

.about-placeholder span {
    font-family: var(--font-display);
    font-size: 3rem;
    letter-spacing: 0.2em;
    color: var(--color-text-dim);
    z-index: 1;
}

.about-accent {
    position: absolute;
    top: var(--space-lg);
    left: var(--space-lg);
    right: calc(var(--space-lg) * -1);
    bottom: calc(var(--space-lg) * -1);
    border: 2px solid var(--color-accent);
    z-index: 0;
}

.about-content {
    padding-right: var(--space-xl);
}

.about-content .section-title {
    margin-bottom: var(--space-lg);
}

.about-text {
    font-size: 1.0625rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.about-signature {
    margin-top: var(--space-xl);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.signature-name {
    display: block;
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.signature-title {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials {
    padding: var(--space-3xl) var(--space-lg);
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
}

.testimonials-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.testimonial {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--space-xl);
    position: relative;
}

.testimonial::before {
    content: '"';
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    font-family: var(--font-display);
    font-size: 4rem;
    color: var(--color-accent);
    opacity: 0.3;
    line-height: 1;
}

.testimonial-text {
    font-size: 1.0625rem;
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.author-name {
    font-weight: 600;
    color: var(--color-text);
}

.author-bike {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--space-3xl) var(--space-lg);
    background: var(--color-bg);
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
}

.contact-info {
    padding-right: var(--space-xl);
}

.contact-desc {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

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

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

.contact-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    font-weight: 600;
}

.contact-value {
    font-size: 1rem;
    color: var(--color-text);
    line-height: 1.6;
}

/* Contact Form */
.contact-form {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--space-xl);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-fast);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    padding: var(--space-3xl) var(--space-lg) var(--space-xl);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-2xl);
}

.footer-logo {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.footer-tagline {
    color: var(--color-text-muted);
    font-size: 1rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.footer-heading {
    font-family: var(--font-display);
    font-size: 1rem;
    letter-spacing: 0.1em;
    color: var(--color-text);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
}

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

.footer-column li {
    margin-bottom: var(--space-xs);
}

.footer-column a {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    color: var(--color-text-dim);
    font-size: 0.875rem;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .collection-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .bike-card.featured {
        grid-column: span 2;
        grid-row: span 1;
        grid-template-columns: 1fr 1fr;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-container {
        gap: var(--space-xl);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background: var(--color-bg-elevated);
        flex-direction: column;
        padding: var(--space-3xl) var(--space-xl);
        transition: var(--transition-base);
        border-left: 1px solid var(--color-border);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-xl);
    }
    
    .collection-grid {
        grid-template-columns: 1fr;
    }
    
    .bike-card.featured {
        grid-column: span 1;
        grid-template-columns: 1fr;
    }
    
    .bike-card.featured .bike-image {
        aspect-ratio: 16/9;
        height: auto;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .about-container {
        grid-template-columns: 1fr;
    }
    
    .about-visual {
        order: 2;
    }
    
    .about-content {
        order: 1;
        padding-right: 0;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 3.5rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        width: 100%;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Smooth scroll offset for fixed nav */
html {
    scroll-padding-top: 80px;
}