/* ============================================
   PLATZHALTER - Apple-Style Website
   CSS Variables & Base Styles
   ============================================ */

:root {
    /* Colors */
    --color-bg: #000000;
    --color-bg-secondary: #0a0a0a;
    --color-bg-tertiary: #111111;
    --color-text: #f5f5f7;
    --color-text-secondary: #86868b;
    --color-text-muted: #6e6e73;
    
    /* Accent Colors */
    --color-cyan: #00D4FF;
    --color-purple: #7B2FFF;
    --color-pink: #FF6B6B;
    --color-green: #30D158;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-purple) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--color-purple) 0%, var(--color-pink) 100%);
    --gradient-text: linear-gradient(90deg, var(--color-cyan) 0%, var(--color-purple) 50%, var(--color-pink) 100%);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --font-size-6xl: 4.5rem;
    --font-size-hero: clamp(3rem, 8vw, 6rem);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    --spacing-4xl: 8rem;
    
    /* Layout */
    --max-width: 1200px;
    --nav-height: 64px;
    
    /* Effects */
    --blur-sm: 10px;
    --blur-md: 20px;
    --blur-lg: 40px;
    --border-radius: 12px;
    --border-radius-lg: 24px;
    --border-radius-xl: 32px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================
   Reset & Base
   ============================================ */

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-base);
}

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-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

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

.section-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.highlight {
    color: var(--color-cyan);
}

/* ============================================
   Layout
   ============================================ */

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

section {
    padding: var(--spacing-4xl) 0;
    position: relative;
}

/* ============================================
   Navigation
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    transition: var(--transition-base);
}

.navbar::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(var(--blur-md));
    -webkit-backdrop-filter: blur(var(--blur-md));
    opacity: 0;
    transition: var(--transition-base);
}

.navbar.scrolled::before {
    opacity: 1;
}

.navbar.scrolled {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    font-size: var(--font-size-lg);
    z-index: 1;
}

.logo-icon {
    font-size: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    z-index: 1;
}

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

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

.nav-link-cta {
    color: var(--color-cyan);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 24px;
    height: 24px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-base);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(var(--blur-lg));
    -webkit-backdrop-filter: blur(var(--blur-lg));
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
}

.mobile-link {
    font-size: var(--font-size-3xl);
    font-weight: 600;
    color: var(--color-text);
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-base);
}

.mobile-menu.active .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

.mobile-menu.active .mobile-link:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu.active .mobile-link:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu.active .mobile-link:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu.active .mobile-link:nth-child(4) { transition-delay: 0.25s; }

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: 100px;
    transition: var(--transition-base);
}

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

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text);
    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(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn-large svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-top: var(--nav-height);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    height: 100%;
    background: radial-gradient(ellipse at center top, rgba(123, 47, 255, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    padding: 0 var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
}

.hero-title {
    font-size: var(--font-size-hero);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.5;
}

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

.hero-visual {
    width: 100%;
    max-width: 900px;
    padding: 0 var(--spacing-lg);
}

.hero-mockup {
    position: relative;
}

.mockup-window {
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 
        0 50px 100px -20px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.05);
}

.mockup-titlebar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #FF5F57; }
.dot.yellow { background: #FEBC2E; }
.dot.green { background: #28C840; }

.mockup-content {
    padding: var(--spacing-lg);
    min-height: 300px;
}

/* ============================================
   Hero App Mockup - Realistic DiskVision
   ============================================ */

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.15) 0%, transparent 60%);
    filter: blur(40px);
    pointer-events: none;
}

.hero-window {
    background: rgba(20, 20, 35, 0.95) !important;
    box-shadow: 
        0 50px 100px -20px rgba(0, 0, 0, 0.6),
        0 0 0 1px rgba(255, 255, 255, 0.1),
        0 0 80px rgba(0, 212, 255, 0.1);
}

.titlebar-title {
    margin-left: auto;
    font-size: 13px;
    color: var(--color-text-muted);
    font-weight: 500;
}

.hero-app-content {
    padding: 20px !important;
    min-height: 380px !important;
    background: rgba(255, 255, 255, 0.02);
}

.hero-app-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 20px;
}

.hero-app-logo img {
    border-radius: 8px;
    display: block;
}

.hero-app-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
}

.hero-app-subtitle {
    font-size: 12px;
    color: var(--color-text-muted);
    margin-left: -8px;
    margin-top: 2px;
}

.hero-app-buttons {
    margin-left: auto;
    display: flex;
    gap: 8px;
}

.hero-btn-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    font-size: 14px;
}

.hero-app-main {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 20px;
}

.hero-chart-section {
    position: relative;
    width: 160px;
    height: 160px;
    flex-shrink: 0;
}

.hero-pie-chart {
    width: 100%;
    height: 100%;
}

.hero-chart-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.hero-chart-percent {
    display: block;
    font-size: 26px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.2;
}

.hero-chart-label {
    display: block;
    font-size: 12px;
    color: var(--color-text-muted);
    margin-top: 2px;
}

.hero-info-section {
    flex: 1;
}

.hero-info-title {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.hero-info-stats {
    display: flex;
    gap: 24px;
    margin-bottom: 12px;
}

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

.hero-stat-value {
    font-size: 22px;
    font-weight: 600;
    color: var(--color-text);
}

.hero-stat-label {
    font-size: 12px;
    color: var(--color-text-muted);
}

.hero-drives-count {
    font-size: 13px;
    color: var(--color-text-secondary);
}

.hero-disk-cards {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.hero-disk-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.hero-disk-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.hero-disk-info {
    flex: 1;
}

.hero-disk-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
}

.hero-disk-type {
    font-size: 11px;
    color: var(--color-text-muted);
    margin-bottom: 6px;
}

.hero-disk-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.hero-disk-fill {
    height: 100%;
    border-radius: 2px;
}

.hero-disk-stats {
    text-align: right;
}

.hero-disk-percent {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-secondary);
}

/* Product Icon Fix */
.product-icon-wrapper {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-lg);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.3);
}

.product-icon-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Scroll Indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-text-muted), transparent);
    animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.5; transform: scaleY(0.8); }
}

/* ============================================
   Philosophy Section
   ============================================ */

.philosophy {
    padding: var(--spacing-4xl) 0;
    background: var(--color-bg);
}

.philosophy-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.philosophy-text {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 500;
    line-height: 1.4;
    color: var(--color-text-secondary);
}

/* ============================================
   Products Section
   ============================================ */

.products {
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

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

/* ============================================
   Product Showcase (DiskVision)
   ============================================ */

.product-showcase {
    padding: var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
}

.showcase-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.product-intro {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

/* Product icon handled by .product-icon-wrapper above */

.product-name {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.product-tagline {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
}

/* Product Visual */
.product-visual {
    max-width: 900px;
    margin: 0 auto var(--spacing-3xl);
    padding: 0 var(--spacing-lg);
    position: relative;
}

.visual-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background: radial-gradient(ellipse, rgba(0, 212, 255, 0.2) 0%, transparent 70%);
    filter: blur(60px);
    pointer-events: none;
}

.product-mockup.large .mockup-window {
    background: rgba(26, 26, 46, 0.95);
}

.product-mockup.large .mockup-window.dark {
    box-shadow: 
        0 60px 120px -30px rgba(0, 0, 0, 0.7),
        0 0 0 1px rgba(255, 255, 255, 0.1),
        0 0 60px rgba(0, 212, 255, 0.1);
}

.titlebar-text {
    margin-left: auto;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.mockup-content.glass {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(var(--blur-sm));
    min-height: 400px;
    padding: var(--spacing-xl);
}

/* DiskVision UI Mock */
.dv-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-xl);
}

.dv-logo {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--gradient-primary);
}

.dv-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.dv-buttons {
    margin-left: auto;
    display: flex;
    gap: var(--spacing-xs);
}

.dv-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
}

.dv-main {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.dv-chart {
    position: relative;
    width: 180px;
    height: 180px;
    flex-shrink: 0;
}

.dv-chart svg {
    width: 100%;
    height: 100%;
}

.chart-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.chart-percent {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
}

.chart-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.dv-info {
    flex: 1;
}

.dv-stat {
    margin-bottom: var(--spacing-md);
}

.stat-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: 4px;
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

.dv-disks {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.dv-disk {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.disk-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(0, 212, 255, 0.2);
}

.disk-icon.cyan { background: rgba(0, 212, 255, 0.2); }
.disk-icon.purple { background: rgba(123, 47, 255, 0.2); }

.disk-info {
    flex: 1;
}

.disk-name {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
}

.disk-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.disk-fill {
    height: 100%;
    background: var(--color-cyan);
    border-radius: 3px;
    transition: width 1s ease;
}

.disk-fill.purple {
    background: var(--color-purple);
}

.disk-size {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    max-width: var(--max-width);
    margin: 0 auto var(--spacing-3xl);
    padding: 0 var(--spacing-lg);
}

.feature-card {
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: var(--transition-base);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-md);
    color: var(--color-cyan);
}

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

.feature-card h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Product CTA */
.product-cta {
    text-align: center;
}

.cta-note {
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ============================================
   Specs Section
   ============================================ */

.specs {
    background: var(--color-bg-secondary);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    max-width: 800px;
    margin: 0 auto;
}

.spec-item {
    text-align: center;
    padding: var(--spacing-xl);
}

.spec-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.spec-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ============================================
   About Section
   ============================================ */

.about {
    padding: var(--spacing-4xl) 0;
}

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

.about-description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.value {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-base);
}

.value-icon {
    color: var(--color-cyan);
}

/* Code Window */
.code-window {
    background: var(--color-bg-tertiary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.code-header {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
}

.code-content {
    padding: var(--spacing-lg);
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.8;
    overflow-x: auto;
}

.code-keyword { color: #FF7AB2; }
.code-class { color: #ACF2E4; }
.code-string { color: #FF8170; }
.code-bool { color: #FF7AB2; }
.code-type { color: #ACF2E4; }
.code-function { color: #FFD76D; }
.code-comment { color: var(--color-text-muted); }

/* ============================================
   Contact Section
   ============================================ */

.contact {
    padding: var(--spacing-4xl) 0;
    background: var(--color-bg-secondary);
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-text {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 100px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.contact-link:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-cyan);
}

.contact-link svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.footer-links {
    display: flex;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

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

.footer-bottom {
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.footer-made {
    margin-top: var(--spacing-xs);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .about-visual {
        order: -1;
    }
    
    .specs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    /* Hero Mockup Responsive */
    .hero-app-main {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-chart-section {
        width: 140px;
        height: 140px;
    }
    
    .hero-info-stats {
        justify-content: center;
    }
    
    .hero-app-header {
        flex-wrap: wrap;
    }
    
    .hero-app-subtitle {
        display: none;
    }
    
    .dv-main {
        flex-direction: column;
        text-align: center;
    }
    
    .dv-info {
        width: 100%;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .specs-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-links {
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 4rem;
        --spacing-4xl: 5rem;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-link {
        width: 100%;
        justify-content: center;
    }
}

/* Schell-Vision Logo Image */
.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    margin-right: 8px;
    vertical-align: middle;
}

.nav-logo {
    display: flex;
    align-items: center;
}