/* ================================
   Apple-inspired Dark Theme Design
   ================================ */

:root {
    /* Color Palette */
    --primary-black: #000000;
    --primary-dark: #0a0a0a;
    --secondary-dark: #1a1a1a;
    --tertiary-dark: #2a2a2a;
    --border-dark: #333333;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    
    /* Belt Colors */
    --belt-gray: #666666;
    --belt-white: #ffffff;
    --belt-yellow: #FFD700;
    --belt-orange: #FFA500;
    --belt-green: #00FF00;
    --belt-blue: #0066FF;
    --belt-brown: #8B4513;
    --belt-red: #FF0000;
    --belt-black: #000000;
    
    /* Accent Colors */
    --accent-primary: #007AFF;
    --accent-success: #32D74B;
    --accent-warning: #FF9500;
    --accent-danger: #FF453A;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", "Helvetica", "Arial", sans-serif;
    --font-mono: "SF Mono", "Monaco", "Courier New", monospace;
    
    /* Animation */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.6);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.8);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.9);
    --shadow-xl: 0 16px 64px rgba(0, 0, 0, 1);
}

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

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

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

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-lg);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--spacing-md);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.7;
}

strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ================================
   Container
   ================================ */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

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

.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-dark);
    transition: all var(--transition-medium);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--accent-primary);
    animation: rotateSlow 20s linear infinite;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

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

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

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

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

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-xxl) 0;
    overflow: hidden;
}

.animated-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.bg-gradient {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(0, 122, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(255, 149, 0, 0.05) 0%, transparent 50%),
                linear-gradient(180deg, var(--primary-black) 0%, var(--primary-dark) 100%);
    animation: gradientShift 20s ease infinite;
}

#particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.hero-content {
    z-index: 1;
}

.hero-title {
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 1s ease;
}

.title-line {
    display: block;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-accent {
    display: block;
    color: var(--accent-primary);
    font-size: 0.8em;
    margin-top: var(--spacing-sm);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 1.5s ease 0.6s both;
}

.belt-progression {
    width: 100%;
    max-width: 400px;
    height: auto;
}

.belt-rings circle {
    animation: pulseRing 3s ease-in-out infinite;
    transform-origin: center;
}

.belt-rings circle:nth-child(1) { animation-delay: 0s; }
.belt-rings circle:nth-child(2) { animation-delay: 0.2s; }
.belt-rings circle:nth-child(3) { animation-delay: 0.4s; }
.belt-rings circle:nth-child(4) { animation-delay: 0.6s; }
.belt-rings circle:nth-child(5) { animation-delay: 0.8s; }
.belt-rings circle:nth-child(6) { animation-delay: 1s; }
.belt-rings circle:nth-child(7) { animation-delay: 1.2s; }
.belt-rings circle:nth-child(8) { animation-delay: 1.4s; }
.belt-rings circle:nth-child(9) { animation-delay: 1.6s; }

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

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all var(--transition-medium);
    cursor: pointer;
    border: none;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
    box-shadow: 0 4px 16px rgba(0, 122, 255, 0.3);
}

.btn-primary:hover {
    background: #0051D5;
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0, 122, 255, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
}

/* ================================
   Section Headers
   ================================ */

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

.section-header h2 {
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
}

/* ================================
   Integration Overview
   ================================ */

.integration-overview {
    padding: var(--spacing-xxl) 0;
    background: var(--primary-dark);
    border-top: 1px solid var(--border-dark);
    border-bottom: 1px solid var(--border-dark);
}

.integration-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.integration-card {
    background: var(--secondary-dark);
    border: 1px solid var(--border-dark);
    border-radius: 16px;
    padding: var(--spacing-lg);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.integration-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-warning));
    transform: scaleX(0);
    transition: transform var(--transition-medium);
}

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

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

.card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-md);
    color: var(--accent-primary);
}

.integration-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.integration-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.card-stats {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-dark);
}

.stat {
    font-size: 0.9rem;
    color: var(--accent-primary);
    font-weight: 600;
    padding: 4px 12px;
    background: rgba(0, 122, 255, 0.1);
    border-radius: 20px;
}

.key-principle {
    background: var(--tertiary-dark);
    border-left: 4px solid var(--accent-primary);
    padding: var(--spacing-lg);
    border-radius: 8px;
    margin-top: var(--spacing-xl);
}

.key-principle p {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin: 0;
}

/* ================================
   Belt Cards
   ================================ */

.belts-section {
    padding: var(--spacing-xxl) 0;
    background: var(--primary-black);
}

.belts-container {
    display: grid;
    gap: var(--spacing-lg);
}

.belt-card {
    background: var(--secondary-dark);
    border: 1px solid var(--border-dark);
    border-radius: 16px;
    overflow: hidden;
    transition: all var(--transition-medium);
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

.belt-card:nth-child(1) { animation-delay: 0.1s; }
.belt-card:nth-child(2) { animation-delay: 0.2s; }
.belt-card:nth-child(3) { animation-delay: 0.3s; }
.belt-card:nth-child(4) { animation-delay: 0.4s; }
.belt-card:nth-child(5) { animation-delay: 0.5s; }
.belt-card:nth-child(6) { animation-delay: 0.6s; }
.belt-card:nth-child(7) { animation-delay: 0.7s; }
.belt-card:nth-child(8) { animation-delay: 0.8s; }
.belt-card:nth-child(9) { animation-delay: 0.9s; }

.belt-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
}

.belt-header {
    display: flex;
    align-items: center;
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.belt-header:hover {
    background: var(--tertiary-dark);
}

.belt-color {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    margin-right: var(--spacing-md);
    border: 3px solid;
    position: relative;
    animation: rotateSlow 20s linear infinite;
}

.belt-color.gray { border-color: var(--belt-gray); background: rgba(102, 102, 102, 0.1); }
.belt-color.white { border-color: var(--belt-white); background: rgba(255, 255, 255, 0.1); }
.belt-color.yellow { border-color: var(--belt-yellow); background: rgba(255, 215, 0, 0.1); }
.belt-color.orange { border-color: var(--belt-orange); background: rgba(255, 165, 0, 0.1); }
.belt-color.green { border-color: var(--belt-green); background: rgba(0, 255, 0, 0.1); }
.belt-color.blue { border-color: var(--belt-blue); background: rgba(0, 102, 255, 0.1); }
.belt-color.brown { border-color: var(--belt-brown); background: rgba(139, 69, 19, 0.1); }
.belt-color.red { border-color: var(--belt-red); background: rgba(255, 0, 0, 0.1); }
.belt-color.black { 
    border-color: var(--belt-black); 
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.5), rgba(50, 50, 50, 0.3));
}

.belt-info h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.belt-tag {
    display: inline-block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: 4px 12px;
    background: var(--tertiary-dark);
    border-radius: 20px;
    font-weight: 500;
}

.belt-content {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease;
}

.belt-card.expanded .belt-content {
    max-height: 2000px;
}

.content-section {
    margin-bottom: var(--spacing-lg);
}

.content-section:last-child {
    margin-bottom: 0;
}

.content-section h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.content-section h4 i {
    color: var(--accent-primary);
    font-size: 1rem;
}

.content-section ul {
    list-style: none;
    padding-left: var(--spacing-lg);
}

.content-section li {
    position: relative;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

.content-section li::before {
    content: '→';
    position: absolute;
    left: -20px;
    color: var(--accent-primary);
}

/* ================================
   Belt Mapping
   ================================ */

.belt-mapping {
    padding: var(--spacing-xxl) 0;
    background: var(--primary-dark);
    border-top: 1px solid var(--border-dark);
}

.mapping-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.mapping-card {
    background: var(--secondary-dark);
    border: 1px solid var(--border-dark);
    border-radius: 12px;
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.mapping-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.mapping-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.mapping-card:hover::after {
    transform: translateX(0);
}

.mapping-icon {
    margin: 0 auto var(--spacing-md);
    width: 48px;
    height: 48px;
}

.mapping-details {
    margin-top: var(--spacing-md);
}

.detail-tag {
    display: inline-block;
    font-size: 0.85rem;
    color: var(--accent-primary);
    padding: 4px 12px;
    background: rgba(0, 122, 255, 0.1);
    border-radius: 20px;
    font-weight: 600;
}

/* ================================
   Timeline
   ================================ */

.literacy-timeline {
    position: relative;
    padding: var(--spacing-xl) 0;
}

.timeline-item {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    position: relative;
    opacity: 0;
    animation: fadeInLeft 0.8s ease forwards;
}

.timeline-item:nth-child(1) { animation-delay: 0.1s; }
.timeline-item:nth-child(2) { animation-delay: 0.2s; }
.timeline-item:nth-child(3) { animation-delay: 0.3s; }
.timeline-item:nth-child(4) { animation-delay: 0.4s; }
.timeline-item:nth-child(5) { animation-delay: 0.5s; }

.timeline-item::before {
    content: '';
    position: absolute;
    left: 35px;
    top: 48px;
    bottom: -40px;
    width: 2px;
    background: var(--border-dark);
}

.timeline-item:last-child::before {
    display: none;
}

.timeline-marker {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(0, 122, 255, 0.5);
    animation: pulse 2s ease-in-out infinite;
}

.marker-number {
    color: white;
    font-weight: bold;
    font-size: 1.2rem;
}

.timeline-content {
    flex: 1;
    padding-bottom: var(--spacing-lg);
}

.timeline-content h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.timeline-content p {
    color: var(--text-secondary);
}

/* ================================
   Metrics Dashboard
   ================================ */

.metrics-section {
    padding: var(--spacing-xxl) 0;
    background: var(--primary-black);
}

.metrics-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.metric-card {
    background: var(--secondary-dark);
    border: 1px solid var(--border-dark);
    border-radius: 12px;
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 122, 255, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.metric-card:hover::before {
    opacity: 1;
}

.metric-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-primary);
}

.metric-card.primary {
    background: linear-gradient(135deg, var(--accent-primary), #0051D5);
    border: none;
    grid-column: span 2;
}

.metric-card.primary .metric-value,
.metric-card.primary .metric-label,
.metric-card.primary .metric-belt {
    color: white;
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
}

.metric-label {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.metric-belt {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ================================
   ROI Summary
   ================================ */

.roi-summary {
    background: var(--secondary-dark);
    border: 1px solid var(--border-dark);
    border-radius: 16px;
    padding: var(--spacing-xl);
}

.roi-summary h3 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.roi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.roi-item {
    padding: var(--spacing-lg);
    background: var(--tertiary-dark);
    border-radius: 12px;
    border: 1px solid var(--border-dark);
    transition: all var(--transition-medium);
}

.roi-item:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.roi-item h4 {
    color: var(--accent-primary);
    margin-bottom: var(--spacing-md);
}

.roi-item ul {
    list-style: none;
}

.roi-item li {
    position: relative;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.roi-item li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-success);
}

/* ================================
   Deployment Section
   ================================ */

.deployment-section {
    padding: var(--spacing-xxl) 0;
    background: var(--primary-dark);
    border-top: 1px solid var(--border-dark);
}

.deployment-phases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.phase-card {
    background: var(--secondary-dark);
    border: 2px solid var(--border-dark);
    border-radius: 16px;
    padding: var(--spacing-xl);
    position: relative;
    transition: all var(--transition-medium);
}

.phase-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-warning));
    border-radius: 16px;
    opacity: 0;
    z-index: -1;
    transition: opacity var(--transition-medium);
}

.phase-card:hover::before {
    opacity: 1;
}

.phase-card:hover {
    transform: translateY(-4px);
}

.phase-number {
    display: inline-block;
    background: var(--accent-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.phase-card h3 {
    margin-bottom: var(--spacing-md);
}

.phase-card ul {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.phase-card li {
    position: relative;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.phase-card li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
}

.phase-timeline {
    text-align: center;
    padding: var(--spacing-sm);
    background: var(--tertiary-dark);
    border-radius: 8px;
    color: var(--text-primary);
    font-weight: 600;
}

/* ================================
   CTA Section
   ================================ */

.cta-section {
    text-align: center;
    padding: var(--spacing-xxl);
    background: linear-gradient(135deg, var(--secondary-dark), var(--tertiary-dark));
    border-radius: 16px;
    margin-top: var(--spacing-xl);
}

.cta-section h3 {
    margin-bottom: var(--spacing-md);
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xl);
    color: var(--text-secondary);
}

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

.main-footer {
    background: var(--primary-black);
    border-top: 1px solid var(--border-dark);
    padding: var(--spacing-xl) 0;
}

.footer-content {
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-info p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary-dark);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        border-top: 1px solid var(--border-dark);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-visual {
        margin-top: var(--spacing-xl);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .metrics-dashboard {
        grid-template-columns: 1fr;
    }
    
    .metric-card.primary {
        grid-column: span 1;
    }
}

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

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

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

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

@keyframes rotateSlow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 20px rgba(0, 122, 255, 0.5);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 30px rgba(0, 122, 255, 0.8);
    }
}

@keyframes pulseRing {
    0%, 100% {
        transform: scale(1);
        opacity: inherit;
    }
    50% {
        transform: scale(1.02);
        opacity: 1;
    }
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}