/* ============================================
   RunPrivate.ai - Futuristic CSS Framework
   Grey + Red Accent Design System
   ============================================ */

/* Custom Font Import */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Rajdhani:wght@300;400;500;600;700&family=Space+Mono:wght@400;700&display=swap');

/* CSS Variables */
:root {
    /* Color Palette - Grey Scale with Red Accents */
    --bg-dark: #0a0a0b;
    --bg-darker: #050506;
    --bg-card: #111113;
    --bg-card-hover: #161618;
    --grey-100: #f5f5f6;
    --grey-200: #e8e8e9;
    --grey-300: #d1d1d3;
    --grey-400: #a8a8ab;
    --grey-500: #6b6b70;
    --grey-600: #45454a;
    --grey-700: #2d2d32;
    --grey-800: #1a1a1d;
    --grey-900: #0f0f11;
    
    /* Red Accents */
    --red-primary: #e53935;
    --red-light: #ff6659;
    --red-dark: #ab000d;
    --red-glow: rgba(229, 57, 53, 0.4);
    --red-subtle: rgba(229, 57, 53, 0.1);
    
    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #0a0a0b 0%, #1a1a1d 50%, #0f0f11 100%);
    --gradient-card: linear-gradient(145deg, #161618 0%, #0f0f11 100%);
    --gradient-red: linear-gradient(135deg, #e53935 0%, #ab000d 100%);
    --gradient-glow: radial-gradient(ellipse at center, var(--red-glow) 0%, transparent 70%);
    
    /* Typography */
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Rajdhani', sans-serif;
    --font-mono: 'Space Mono', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    
    /* Borders */
    --border-thin: 1px solid rgba(229, 57, 53, 0.2);
    --border-accent: 1px solid var(--red-primary);
    --border-grey: 1px solid rgba(107, 107, 112, 0.3);
    
    /* 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);
    --shadow-glow: 0 0 30px var(--red-glow);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* 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: var(--bg-dark);
    color: var(--grey-300);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Background Grid Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(229, 57, 53, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(229, 57, 53, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

/* Animated Background Glow */
body::after {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 20%, rgba(229, 57, 53, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 80%, rgba(229, 57, 53, 0.05) 0%, transparent 40%);
    animation: backgroundPulse 15s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes backgroundPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--grey-100);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
    font-size: 1.1rem;
    color: var(--grey-400);
    max-width: 65ch;
}

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

.text-glow {
    text-shadow: 0 0 20px var(--red-glow), 0 0 40px var(--red-glow);
}

a {
    color: var(--red-primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--red-light);
    text-shadow: 0 0 10px var(--red-glow);
}

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) var(--space-xl);
    background: rgba(10, 10, 11, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: var(--border-thin);
    transition: var(--transition-normal);
}

.navbar.scrolled {
    padding: var(--space-sm) var(--space-xl);
    background: rgba(10, 10, 11, 0.95);
    box-shadow: var(--shadow-md);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.nav-logo svg {
    width: 40px;
    height: 40px;
}

.nav-logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--grey-100);
    letter-spacing: 0.1em;
}

.nav-logo-text span {
    color: var(--red-primary);
}

.nav-links {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
}

.nav-links a {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 500;
    color: var(--grey-400);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: var(--space-sm) var(--space-md);
    position: relative;
    transition: var(--transition-fast);
}

.nav-links a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--red-primary);
    transition: var(--transition-normal);
    transform: translateX(-50%);
}

.nav-links a:hover {
    color: var(--grey-100);
}

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

.nav-cta {
    padding: var(--space-sm) var(--space-lg) !important;
    background: var(--gradient-red);
    border-radius: 4px;
    color: var(--grey-100) !important;
}

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

.nav-cta::before {
    display: none !important;
}

/* Mobile Menu */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--grey-300);
    transition: var(--transition-fast);
}

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(80px + var(--space-2xl)) var(--space-xl) var(--space-2xl);
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(90deg, transparent 49.5%, rgba(229, 57, 53, 0.1) 49.5%, rgba(229, 57, 53, 0.1) 50.5%, transparent 50.5%),
        linear-gradient(transparent 49.5%, rgba(229, 57, 53, 0.1) 49.5%, rgba(229, 57, 53, 0.1) 50.5%, transparent 50.5%);
    background-size: 100px 100px;
    animation: gridMove 20s linear infinite;
    opacity: 0.5;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(100px, 100px); }
}

.hero-container {
    position: relative;
    z-index: 2;
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.hero-content {
    animation: fadeInUp 1s ease;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: var(--red-subtle);
    border: var(--border-thin);
    border-radius: 50px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--red-light);
    margin-bottom: var(--space-lg);
    animation: pulse 2s ease-in-out infinite;
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--red-primary);
    border-radius: 50%;
    animation: blink 1s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-title {
    margin-bottom: var(--space-lg);
}

.hero-title .line {
    display: block;
    overflow: hidden;
}

.hero-title .line span {
    display: inline-block;
    animation: slideUp 0.8s ease forwards;
    animation-delay: calc(var(--i) * 0.1s);
    transform: translateY(100%);
}

@keyframes slideUp {
    to { transform: translateY(0); }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--grey-400);
    margin-bottom: var(--space-xl);
    max-width: 500px;
}

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

.stat {
    text-align: left;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--grey-100);
    line-height: 1;
}

.stat-value span {
    color: var(--red-primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--grey-500);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

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

.hero-visual {
    position: relative;
    animation: fadeInRight 1s ease 0.3s both;
}

.hero-image-container {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    border: var(--border-thin);
    box-shadow: var(--shadow-lg);
}

.hero-image-container::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 50%, rgba(229, 57, 53, 0.1) 100%);
    z-index: 1;
    pointer-events: none;
}

.hero-image-container img {
    width: 100%;
    height: auto;
    display: block;
}

/* Floating Elements */
.floating-card {
    position: absolute;
    background: var(--bg-card);
    border: var(--border-thin);
    border-radius: 8px;
    padding: var(--space-md);
    box-shadow: var(--shadow-md);
    animation: float 6s ease-in-out infinite;
}

.floating-card.card-1 {
    top: -20px;
    right: -30px;
    animation-delay: 0s;
}

.floating-card.card-2 {
    bottom: 20px;
    left: -40px;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-red);
    color: var(--grey-100);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-3px);
    color: var(--grey-100);
}

.btn-secondary {
    background: transparent;
    color: var(--grey-300);
    border: var(--border-grey);
}

.btn-secondary:hover {
    border-color: var(--red-primary);
    color: var(--grey-100);
    box-shadow: inset 0 0 20px var(--red-subtle);
}

.btn-outline {
    background: transparent;
    color: var(--red-primary);
    border: var(--border-accent);
}

.btn-outline:hover {
    background: var(--red-primary);
    color: var(--grey-100);
}

/* ============================================
   Sections
   ============================================ */

section {
    position: relative;
    z-index: 1;
    padding: var(--space-2xl) var(--space-xl);
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--space-2xl);
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--red-primary);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: var(--space-md);
    padding: var(--space-xs) var(--space-md);
    border: var(--border-thin);
    border-radius: 4px;
}

.section-title {
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--grey-500);
    max-width: 600px;
    margin: 0 auto;
}

/* Decorative Lines */
.line-horizontal {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--red-primary), transparent);
    margin: var(--space-2xl) 0;
}

.line-vertical {
    width: 1px;
    height: 100px;
    background: linear-gradient(180deg, var(--red-primary), transparent);
    margin: 0 auto;
}

/* ============================================
   Features Section
   ============================================ */

.features {
    background: var(--bg-darker);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.feature-card {
    position: relative;
    background: var(--gradient-card);
    border: var(--border-thin);
    border-radius: 12px;
    padding: var(--space-xl);
    transition: var(--transition-normal);
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-red);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(229, 57, 53, 0.4);
    box-shadow: var(--shadow-md);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--red-subtle);
    border: var(--border-thin);
    border-radius: 12px;
    margin-bottom: var(--space-lg);
}

.feature-icon svg {
    width: 30px;
    height: 30px;
    color: var(--red-primary);
}

.feature-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.feature-desc {
    font-size: 1rem;
    color: var(--grey-500);
}

/* ============================================
   Hardware Section
   ============================================ */

.hardware {
    background: var(--bg-dark);
    overflow: hidden;
}

.hardware-showcase {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

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

.hardware-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.spec-item {
    background: var(--bg-card);
    border: var(--border-grey);
    border-radius: 8px;
    padding: var(--space-md);
    transition: var(--transition-fast);
}

.spec-item:hover {
    border-color: var(--red-primary);
}

.spec-label {
    font-size: 0.85rem;
    color: var(--grey-500);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xs);
}

.spec-value {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--grey-100);
}

.hardware-images {
    position: relative;
}

.hardware-gallery {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.hardware-img {
    border-radius: 12px;
    overflow: hidden;
    border: var(--border-thin);
    transition: var(--transition-normal);
}

.hardware-img:first-child {
    grid-column: span 2;
}

.hardware-img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-glow);
}

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

/* ============================================
   Dashboard Preview
   ============================================ */

.dashboard-preview {
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
}

.dashboard-container {
    max-width: 1400px;
    margin: 0 auto;
}

.dashboard-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.dashboard-tab {
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--grey-500);
    background: var(--bg-card);
    border: var(--border-grey);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.dashboard-tab:hover,
.dashboard-tab.active {
    color: var(--grey-100);
    border-color: var(--red-primary);
    background: var(--red-subtle);
}

.dashboard-screenshot {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    border: var(--border-thin);
    box-shadow: var(--shadow-lg);
}

.dashboard-screenshot::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: var(--bg-card);
    border-bottom: var(--border-thin);
    z-index: 1;
}

.dashboard-screenshot::after {
    content: '• • •';
    position: absolute;
    top: 12px;
    left: 16px;
    font-size: 10px;
    color: var(--red-primary);
    letter-spacing: 4px;
    z-index: 2;
}

.dashboard-screenshot img {
    width: 100%;
    height: auto;
    display: block;
    margin-top: 0;
}

/* ============================================
   Testimonials / Use Cases
   ============================================ */

.use-cases {
    background: var(--bg-dark);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.use-case-card {
    background: var(--bg-card);
    border: var(--border-grey);
    border-radius: 12px;
    padding: var(--space-xl);
    text-align: center;
    transition: var(--transition-normal);
}

.use-case-card:hover {
    border-color: var(--red-primary);
    transform: translateY(-5px);
}

.use-case-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--red-subtle);
    border-radius: 50%;
}

.use-case-icon svg {
    width: 40px;
    height: 40px;
    color: var(--red-primary);
}

.use-case-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.use-case-desc {
    color: var(--grey-500);
}

/* ============================================
   Pricing Section
   ============================================ */

.pricing {
    background: var(--bg-darker);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    position: relative;
    background: var(--gradient-card);
    border: var(--border-grey);
    border-radius: 16px;
    padding: var(--space-xl);
    text-align: center;
    transition: var(--transition-normal);
}

.pricing-card.featured {
    border-color: var(--red-primary);
    transform: scale(1.05);
}

.pricing-card.featured::before {
    content: 'Most Popular';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-xs) var(--space-md);
    background: var(--gradient-red);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--grey-100);
}

.pricing-card:hover {
    border-color: var(--red-primary);
    box-shadow: var(--shadow-glow);
}

.pricing-name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--grey-100);
    margin-bottom: var(--space-md);
}

.pricing-price {
    margin-bottom: var(--space-lg);
}

.pricing-amount {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--grey-100);
}

.pricing-period {
    font-size: 1rem;
    color: var(--grey-500);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--space-xl);
    text-align: left;
}

.pricing-features li {
    padding: var(--space-sm) 0;
    color: var(--grey-400);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.pricing-features li::before {
    content: '✓';
    color: var(--red-primary);
    font-weight: bold;
}

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

.contact {
    background: var(--bg-dark);
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
}

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

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: var(--bg-card);
    border: var(--border-grey);
    border-radius: 8px;
    transition: var(--transition-fast);
}

.contact-item:hover {
    border-color: var(--red-primary);
}

.contact-item-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--red-subtle);
    border-radius: 8px;
    flex-shrink: 0;
}

.contact-item-icon svg {
    width: 24px;
    height: 24px;
    color: var(--red-primary);
}

.contact-item-label {
    font-size: 0.9rem;
    color: var(--grey-500);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.contact-item-value {
    font-size: 1.1rem;
    color: var(--grey-200);
}

.contact-form {
    background: var(--bg-card);
    border: var(--border-thin);
    border-radius: 16px;
    padding: var(--space-xl);
}

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

.form-label {
    display: block;
    font-size: 0.9rem;
    color: var(--grey-400);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-md);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--grey-100);
    background: var(--bg-darker);
    border: var(--border-grey);
    border-radius: 8px;
    transition: var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--red-primary);
    box-shadow: 0 0 0 3px var(--red-subtle);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.form-submit {
    width: 100%;
    margin-top: var(--space-md);
}

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

.footer {
    background: var(--bg-darker);
    border-top: var(--border-thin);
    padding: var(--space-2xl) var(--space-xl) var(--space-lg);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

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

.footer-brand {
    max-width: 350px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.footer-logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--grey-100);
}

.footer-logo-text span {
    color: var(--red-primary);
}

.footer-desc {
    font-size: 0.95rem;
    color: var(--grey-500);
    margin-bottom: var(--space-lg);
}

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

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: var(--border-grey);
    border-radius: 8px;
    color: var(--grey-400);
    transition: var(--transition-fast);
}

.social-link:hover {
    border-color: var(--red-primary);
    color: var(--red-primary);
    background: var(--red-subtle);
}

.footer-column h4 {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    color: var(--grey-200);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-lg);
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    font-size: 0.95rem;
    color: var(--grey-500);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--red-primary);
    padding-left: var(--space-sm);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-lg);
    border-top: var(--border-grey);
}

.footer-copyright {
    font-size: 0.9rem;
    color: var(--grey-500);
}

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

.footer-legal a {
    font-size: 0.9rem;
    color: var(--grey-500);
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.fade-in {
    opacity: 0;
    animation: fadeIn 0.6s ease forwards;
}

.fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

[data-animate] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation delays */
[data-animate-delay="1"] { transition-delay: 0.1s; }
[data-animate-delay="2"] { transition-delay: 0.2s; }
[data-animate-delay="3"] { transition-delay: 0.3s; }
[data-animate-delay="4"] { transition-delay: 0.4s; }
[data-animate-delay="5"] { transition-delay: 0.5s; }

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

@media (max-width: 1200px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        order: 1;
    }
    
    .hero-visual {
        order: 2;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .hero-subtitle {
        margin: 0 auto var(--space-xl);
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hardware-showcase {
        grid-template-columns: 1fr;
    }
    
    .hardware-content {
        padding-right: 0;
        text-align: center;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        padding-right: 0;
    }
}

@media (max-width: 992px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-dark);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-normal);
        border-bottom: var(--border-thin);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --space-xl: 3rem;
        --space-2xl: 4rem;
    }
    
    section {
        padding: var(--space-xl) var(--space-md);
    }
    
    .hero {
        padding: calc(80px + var(--space-xl)) var(--space-md) var(--space-xl);
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .hardware-specs {
        grid-template-columns: 1fr;
    }
    
    .hardware-gallery {
        grid-template-columns: 1fr;
    }
    
    .hardware-img:first-child {
        grid-column: span 1;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .footer-legal {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .btn {
        padding: var(--space-sm) var(--space-lg);
        font-size: 0.9rem;
    }
    
    .floating-card {
        display: none;
    }
}

/* ============================================
   Utility Classes
   ============================================ */

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

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.hidden { display: none; }
.visible { display: block; }

/* Red accent line decorations */
.accent-line {
    position: relative;
}

.accent-line::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-red);
}

.accent-line.center::after {
    left: 50%;
    transform: translateX(-50%);
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--grey-700);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--red-primary);
}

/* Selection */
::selection {
    background: var(--red-primary);
    color: var(--grey-100);
}