/* ============================================
   AutoMetrics Pro - Car Analytics & Detailing
   Design System: Volcanic Glass + Industrial Tech
   ============================================ */

/* CSS Variables */
:root {
    /* Colors - Volcanic Glass Palette */
    --color-bg-primary: #0A0A0A;
    --color-bg-secondary: #141414;
    --color-bg-tertiary: #1A1A1A;
    --color-bg-elevated: #1F1F1F;
    
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #A0A0A0;
    --color-text-tertiary: #666666;
    
    /* Accent Colors */
    --color-accent-primary: #FF6B2B;
    --color-accent-secondary: #FFB088;
    --color-accent-glow: rgba(255, 107, 43, 0.3);
    
    --color-success: #00D4AA;
    --color-warning: #FFB800;
    --color-error: #FF4757;
    --color-info: #7B68EE;
    
    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #0A0A0A 0%, #1A1A2E 50%, #0A0A0A 100%);
    --gradient-accent: linear-gradient(135deg, #FF6B2B 0%, #FFB088 100%);
    --gradient-card: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 100%);
    
    /* 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: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 40px var(--color-accent-glow);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index */
    --z-nav: 1000;
    --z-modal: 2000;
    --z-tooltip: 3000;
}

/* 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-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

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

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

.nav.scrolled {
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    color: var(--color-accent-primary);
    font-size: 1.75rem;
}

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

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
    position: relative;
}

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

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-xs);
}

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

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: rgba(255,255,255,0.1);
    color: var(--color-text-primary);
    border: 1px solid rgba(255,255,255,0.2);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.3);
}

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

.btn-full {
    width: 100%;
}

.btn-icon {
    width: 18px;
    height: 18px;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: calc(var(--space-3xl) + 80px) var(--space-lg) var(--space-3xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    background: rgba(255,107,43,0.1);
    border: 1px solid rgba(255,107,43,0.3);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--color-accent-secondary);
    margin-bottom: var(--space-md);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent-primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.title-line {
    display: block;
}

.title-accent {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 500px;
    margin-bottom: var(--space-xl);
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.hero-stats {
    display: flex;
    gap: var(--space-2xl);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent-primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.car-silhouette {
    position: relative;
    width: 100%;
    height: 100%;
}

.car-body {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, 
        rgba(255,107,43,0.1) 0%, 
        rgba(255,107,43,0.05) 50%,
        transparent 100%);
    border-radius: var(--radius-xl);
    transform: perspective(1000px) rotateY(-15deg);
    border: 1px solid rgba(255,107,43,0.2);
}

.car-glow {
    position: absolute;
    inset: -20px;
    background: radial-gradient(ellipse at center, 
        rgba(255,107,43,0.2) 0%, 
        transparent 70%);
    filter: blur(40px);
}

.data-particles {
    position: absolute;
    inset: 0;
}

.floating-cards {
    position: absolute;
    inset: 0;
}

.float-card {
    position: absolute;
    padding: var(--space-md);
    background: var(--color-bg-elevated);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    min-width: 140px;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.card-1 {
    top: 10%;
    right: 0;
    animation-delay: 0s;
}

.card-2 {
    top: 40%;
    left: -20px;
    animation-delay: 2s;
}

.card-3 {
    bottom: 20%;
    right: 10%;
    animation-delay: 4s;
}

.card-icon {
    font-size: 1.5rem;
    margin-bottom: var(--space-xs);
}

.card-text {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-value {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-accent-primary);
}

/* ============================================
   Section Styles
   ============================================ */
.section-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-3xl) var(--space-lg);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: rgba(255,107,43,0.1);
    border: 1px solid rgba(255,107,43,0.3);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-accent-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-sm);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Analytics Section
   ============================================ */
.analytics {
    background: var(--color-bg-secondary);
}

.dashboard-preview {
    margin-bottom: var(--space-3xl);
}

.dashboard-frame {
    background: var(--color-bg-elevated);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.dash-tabs {
    display: flex;
    gap: var(--space-xs);
}

.dash-tab {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.dash-tab:hover {
    color: var(--color-text-primary);
}

.dash-tab.active {
    background: rgba(255,107,43,0.2);
    color: var(--color-accent-secondary);
}

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

.dash-btn {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.05);
    color: var(--color-text-secondary);
}

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

.dashboard-content {
    padding: var(--space-lg);
}

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

.metric-card {
    background: var(--color-bg-secondary);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
}

.metric-card.highlight {
    border-color: rgba(255,107,43,0.3);
    background: linear-gradient(180deg, rgba(255,107,43,0.05) 0%, transparent 100%);
}

.metric-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.metric-name {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.metric-trend {
    font-size: 0.75rem;
    font-weight: 600;
}

.metric-trend.up {
    color: var(--color-success);
}

.metric-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.metric-status {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.metric-status.normal {
    background: rgba(0,212,170,0.1);
    color: var(--color-success);
}

.metric-status.warning {
    background: rgba(255,184,0,0.1);
    color: var(--color-warning);
}

.metric-chart {
    height: 40px;
}

.sparkline {
    width: 100%;
    height: 100%;
    color: var(--color-accent-primary);
}

.metric-bar {
    height: 6px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.metric-bar.warning {
    background: rgba(255,184,0,0.2);
}

.bar-fill {
    height: 100%;
    background: var(--color-accent-primary);
    border-radius: var(--radius-full);
    transition: width 1s ease;
}

.metric-bar.warning .bar-fill {
    background: var(--color-warning);
}

.tire-visual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xs);
    font-size: 0.6rem;
    text-align: center;
}

.tire {
    padding: var(--space-xs);
    background: rgba(0,212,170,0.1);
    border-radius: var(--radius-sm);
    color: var(--color-success);
}

.chart-container {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.chart-header h4 {
    font-size: 1rem;
    font-weight: 600;
}

.chart-legend {
    display: flex;
    gap: var(--space-md);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.legend-item .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.chart-area {
    height: 200px;
}

.main-chart {
    width: 100%;
    height: 100%;
}

.chart-line {
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.feature-card {
    text-align: center;
    padding: var(--space-lg);
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255,107,43,0.3);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,107,43,0.1);
    border-radius: var(--radius-lg);
    color: var(--color-accent-primary);
}

.feature-icon svg {
    width: 28px;
    height: 28px;
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* ============================================
   Detailing Section
   ============================================ */
.detailing {
    background: var(--color-bg-primary);
}

.detailing-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.before-after-container {
    position: relative;
    height: 400px;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.before-image, .after-image {
    position: absolute;
    inset: 0;
}

.before-image {
    width: 50%;
    overflow: hidden;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
}

.image-placeholder.before {
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
    color: var(--color-text-secondary);
}

.image-placeholder.after {
    background: linear-gradient(135deg, #1a1a2e 0%, #0a0a0a 100%);
    color: var(--color-accent-primary);
}

.condition-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    justify-content: center;
    margin-top: var(--space-md);
}

.badge {
    padding: 4px 12px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 500;
}

.badge.success {
    background: rgba(0,212,170,0.2);
    color: var(--color-success);
}

.slider-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    cursor: ew-resize;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.handle-line {
    width: 2px;
    height: 100%;
    background: var(--color-accent-primary);
}

.handle-circle {
    position: absolute;
    width: 40px;
    height: 40px;
    background: var(--color-accent-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--color-bg-primary);
    box-shadow: var(--shadow-glow);
}

/* Services List */
.services-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.service-card {
    background: var(--color-bg-elevated);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    position: relative;
    transition: var(--transition-base);
}

.service-card:hover {
    border-color: rgba(255,107,43,0.3);
}

.service-card.featured {
    border-color: rgba(255,107,43,0.5);
    background: linear-gradient(180deg, rgba(255,107,43,0.05) 0%, transparent 100%);
}

.service-badge {
    position: absolute;
    top: -10px;
    right: var(--space-md);
    padding: 4px 12px;
    background: var(--color-accent-primary);
    color: var(--color-bg-primary);
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.service-header h3 {
    font-size: 1.25rem;
}

.service-price {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent-primary);
}

.service-desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.service-features {
    margin-bottom: var(--space-md);
}

.service-features li {
    padding: var(--space-xs) 0;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    position: relative;
    padding-left: 20px;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 700;
}

.service-btn {
    width: 100%;
}

/* Detailing Process */
.detailing-process {
    text-align: center;
}

.process-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-xl);
}

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

.process-step {
    text-align: center;
}

.step-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent-primary);
    opacity: 0.3;
    margin-bottom: var(--space-sm);
}

.step-content h4 {
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
}

.step-content p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* ============================================
   Knowledge Base Section
   ============================================ */
.knowledge {
    background: var(--color-bg-secondary);
}

.kb-search {
    max-width: 800px;
    margin: 0 auto var(--space-3xl);
}

.search-box {
    position: relative;
    margin-bottom: var(--space-md);
}

.search-icon {
    position: absolute;
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--color-text-tertiary);
}

.search-box input {
    width: 100%;
    padding: var(--space-md) var(--space-md) var(--space-md) 50px;
    background: var(--color-bg-elevated);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.search-box input:focus {
    outline: none;
    border-color: var(--color-accent-primary);
}

.search-btn {
    position: absolute;
    right: var(--space-xs);
    top: 50%;
    transform: translateY(-50%);
    padding: var(--space-xs) var(--space-md);
    background: var(--color-accent-primary);
    color: var(--color-bg-primary);
    font-weight: 600;
    border-radius: var(--radius-md);
}

.search-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    justify-content: center;
}

.search-tag {
    padding: var(--space-xs) var(--space-md);
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.search-tag:hover, .search-tag.active {
    background: rgba(255,107,43,0.2);
    border-color: rgba(255,107,43,0.5);
    color: var(--color-accent-secondary);
}

/* KB Grid */
.kb-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-3xl);
}

.kb-card {
    background: var(--color-bg-elevated);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-base);
}

.kb-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255,107,43,0.3);
}

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

.kb-image {
    height: 200px;
    background: linear-gradient(135deg, rgba(255,107,43,0.1) 0%, rgba(123,104,238,0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.kb-card.featured .kb-image {
    height: auto;
}

.kb-placeholder {
    font-size: 4rem;
}

.kb-content {
    padding: var(--space-lg);
}

.kb-meta {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.kb-category {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kb-read {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.kb-card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
}

.kb-card p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.kb-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-accent-primary);
}

/* KB Categories */
.kb-categories {
    text-align: center;
}

.kb-categories h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-xl);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-md);
}

.category-card {
    padding: var(--space-lg);
    background: var(--color-bg-elevated);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.category-card:hover {
    border-color: rgba(255,107,43,0.3);
    transform: translateY(-2px);
}

.cat-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: var(--space-sm);
}

.cat-name {
    display: block;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.cat-count {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

/* ============================================
   Pricing Section
   ============================================ */
.pricing {
    background: var(--color-bg-primary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--color-bg-elevated);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    position: relative;
    transition: var(--transition-base);
}

.pricing-card:hover {
    border-color: rgba(255,255,255,0.1);
}

.pricing-card.popular {
    border-color: rgba(255,107,43,0.5);
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-xs) var(--space-md);
    background: var(--color-accent-primary);
    color: var(--color-bg-primary);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.pricing-amount {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.pricing-amount span {
    font-size: 1rem;
    color: var(--color-text-secondary);
    font-weight: 400;
}

.pricing-desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.pricing-features {
    margin-bottom: var(--space-xl);
}

.pricing-features li {
    padding: var(--space-sm) 0;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.pricing-features li:last-child {
    border-bottom: none;
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    background: var(--color-bg-secondary);
}

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

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.contact-info > p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

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

.contact-item {
    display: flex;
    gap: var(--space-md);
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,107,43,0.1);
    border-radius: var(--radius-lg);
    font-size: 1.25rem;
}

.contact-item strong {
    display: block;
    margin-bottom: var(--space-xs);
}

.contact-item p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* Contact Form */
.contact-form-container {
    background: var(--color-bg-elevated);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--color-text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg-secondary);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

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

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

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-bg-primary);
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: var(--space-3xl) 0 var(--space-lg);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.social-links {
    display: flex;
    gap: var(--space-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--color-accent-primary);
    color: var(--color-bg-primary);
}

.footer-links h4 {
    font-size: 1rem;
    margin-bottom: var(--space-md);
}

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
}

.footer-legal a {
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1200px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .detailing-showcase {
        grid-template-columns: 1fr;
    }
    
    .kb-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .kb-card.featured {
        grid-column: span 2;
    }
    
    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-actions {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero {
        padding-top: calc(var(--space-2xl) + 60px);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .kb-grid {
        grid-template-columns: 1fr;
    }
    
    .kb-card.featured {
        grid-template-columns: 1fr;
    }
    
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.popular {
        transform: none;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
}

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

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

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-text-tertiary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-secondary);
}