/* ============================================
   Global Styles & Reset
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --color-dark: #0a0a0f;
    --color-dark-alt: #13131a;
    --color-dark-lighter: #1a1a2e;
    --color-purple: #6B46C1;
    --color-purple-light: #8B5CF6;
    --color-orange: #FF6B35;
    --color-orange-light: #FF8C61;
    --color-blue: #3B82F6;
    --color-cyan: #06B6D4;
    --color-white: #FFFFFF;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-400: #9CA3AF;
    --color-gray-600: #4B5563;
    --color-gray-800: #1F2937;

    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Space Grotesk', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(107, 70, 193, 0.3);
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-dark);
    color: var(--color-gray-100);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-purple-light), var(--color-orange));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm) 0;
    transition: var(--transition-base);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    color: var(--color-white);
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-display);
}

.logo-icon {
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-menu a {
    color: var(--color-gray-400);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-purple), var(--color-orange));
    transition: var(--transition-base);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: radial-gradient(circle at 50% 50%, var(--color-dark-lighter), var(--color-dark));
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--color-purple);
    top: -200px;
    left: -200px;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--color-orange);
    bottom: -150px;
    right: -150px;
    animation-delay: -5s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: var(--color-blue);
    top: 50%;
    right: 10%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

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

.hero-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(107, 70, 193, 0.2);
    border: 1px solid rgba(107, 70, 193, 0.4);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-gray-400);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-purple), var(--color-orange));
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

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

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

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

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    border-color: var(--color-purple);
    background: rgba(107, 70, 193, 0.1);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* ============================================
   Scroll Indicator
   ============================================ */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-indicator span {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-white);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { top: 8px; opacity: 1; }
    100% { top: 24px; opacity: 0; }
}

/* ============================================
   Animation Classes
   ============================================ */
.fade-in {
    animation: fadeIn 1s ease forwards;
}

.fade-in-up {
    animation: fadeInUp 1s ease forwards;
}

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

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

/* ============================================
   Section Styles
   ============================================ */
section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

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

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-gray-400);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Stats Section
   ============================================ */
.stats-section {
    background: linear-gradient(180deg, var(--color-dark) 0%, var(--color-dark-lighter) 100%);
}

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

.stat-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition-base);
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-purple);
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.stat-number {
    display: inline-block;
    font-size: 4rem;
    font-weight: 900;
    font-family: var(--font-display);
    background: linear-gradient(135deg, var(--color-purple-light), var(--color-orange));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}

.stat-unit {
    display: inline-block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-gray-400);
    margin-left: 4px;
}

.stat-description {
    font-size: 1.125rem;
    margin: var(--spacing-sm) 0;
    color: var(--color-gray-200);
}

.stat-source {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    font-style: italic;
}

.stats-cta {
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* ============================================
   Reasons Section
   ============================================ */
.reasons-section {
    background: var(--color-dark-lighter);
}

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

.reason-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.reason-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-purple), var(--color-orange));
    transform: scaleX(0);
    transition: var(--transition-base);
}

.reason-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--color-purple);
    transform: translateY(-8px);
}

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

.reason-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(107, 70, 193, 0.2), rgba(255, 107, 53, 0.2));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--color-purple-light);
    margin-bottom: var(--spacing-sm);
}

.reason-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.reason-arrow {
    color: var(--color-orange);
    font-size: 1.5rem;
    margin: var(--spacing-xs) 0;
}

.reason-effect {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-orange-light);
    margin-bottom: var(--spacing-sm);
}

.reason-description {
    font-size: 0.9375rem;
    color: var(--color-gray-400);
    line-height: 1.6;
}

/* ============================================
   History Section
   ============================================ */
.history-section {
    background: linear-gradient(180deg, var(--color-dark-lighter) 0%, var(--color-dark) 100%);
}

.timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-purple), var(--color-orange));
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
    padding-left: 120px;
}

.timeline-number {
    position: absolute;
    left: 16px;
    top: 0;
    width: 68px;
    height: 68px;
    background: linear-gradient(135deg, var(--color-purple), var(--color-orange));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 900;
    font-family: var(--font-display);
    box-shadow: var(--shadow-glow);
}

.timeline-content {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: var(--transition-base);
}

.timeline-item:hover .timeline-content {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-purple);
    transform: translateX(8px);
}

.timeline-item.active .timeline-content {
    background: rgba(107, 70, 193, 0.15);
    border-color: var(--color-purple);
    box-shadow: var(--shadow-glow);
}

.timeline-era {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-xs);
}

.timeline-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.timeline-arrow {
    color: var(--color-orange);
    font-size: 1.5rem;
    margin: var(--spacing-xs) 0;
}

.timeline-result {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-purple-light);
    margin-bottom: var(--spacing-sm);
}

.timeline-description {
    color: var(--color-gray-400);
    line-height: 1.6;
}

/* ============================================
   Topics Section
   ============================================ */
.topics-section {
    background: var(--color-dark);
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.topic-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-base);
}

.topic-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(107, 70, 193, 0.3), rgba(255, 107, 53, 0.3));
    opacity: 0;
    transition: var(--transition-base);
}

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

.topic-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-purple);
}

.topic-emoji {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
}

.topic-question {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-gray-200);
    margin-bottom: var(--spacing-sm);
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.topic-arrow {
    color: var(--color-orange);
    font-size: 1.5rem;
    margin: var(--spacing-xs) 0;
}

.topic-title {
    font-size: 1.5rem;
    color: var(--color-purple-light);
    margin-bottom: var(--spacing-sm);
}

.topic-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 15, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    opacity: 0;
    transition: var(--transition-base);
    z-index: 1;
}

.topic-card:hover .topic-overlay {
    opacity: 1;
}

.topic-overlay p {
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   Ecosystem Section
   ============================================ */
.ecosystem-section {
    background: linear-gradient(180deg, var(--color-dark) 0%, var(--color-dark-lighter) 100%);
}

.ecosystem-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    justify-content: center;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--color-gray-400);
    cursor: pointer;
    transition: var(--transition-base);
    font-size: 0.9375rem;
    font-weight: 600;
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-white);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--color-purple), var(--color-orange));
    border-color: transparent;
    color: var(--color-white);
}

.tab-content {
    display: none;
    animation: fadeInUp 0.5s ease;
}

.tab-content.active {
    display: block;
}

.ecosystem-content {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.ecosystem-intro {
    margin-bottom: var(--spacing-lg);
}

.ecosystem-intro h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.ecosystem-intro p {
    color: var(--color-gray-400);
    font-size: 1.125rem;
    line-height: 1.8;
}

.ecosystem-list {
    display: grid;
    gap: var(--spacing-md);
}

.ecosystem-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.ecosystem-item:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--color-purple);
    transform: translateX(8px);
}

.item-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.ecosystem-item h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.ecosystem-item p {
    color: var(--color-gray-400);
}

.ecosystem-split {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.split-side {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 2px solid;
}

.split-side.negative {
    border-color: rgba(255, 107, 53, 0.3);
    background: rgba(255, 107, 53, 0.05);
}

.split-side.positive {
    border-color: rgba(107, 70, 193, 0.3);
    background: rgba(107, 70, 193, 0.05);
}

.split-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.split-header.negative {
    color: var(--color-orange-light);
}

.split-header.positive {
    color: var(--color-purple-light);
}

.ecosystem-note {
    padding: var(--spacing-md);
    background: rgba(255, 107, 53, 0.1);
    border-left: 4px solid var(--color-orange);
    border-radius: var(--radius-sm);
}

.startup-categories {
    display: grid;
    gap: var(--spacing-md);
}

.startup-category {
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.category-header i {
    font-size: 1.5rem;
    color: var(--color-purple-light);
}

.category-header h4 {
    font-size: 1.25rem;
}

.startup-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.startup-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(107, 70, 193, 0.2);
    border: 1px solid rgba(107, 70, 193, 0.4);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-purple-light);
    transition: var(--transition-fast);
}

.startup-tag:hover {
    background: rgba(107, 70, 193, 0.3);
    transform: scale(1.05);
}

.economic-breakdown {
    display: grid;
    gap: var(--spacing-md);
}

.economic-item {
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
}

.economic-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
}

.bar-fill {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--color-purple), var(--color-orange));
    border-radius: var(--radius-full);
    width: 0;
    transition: width 1.5s ease;
}

.economic-item:hover .bar-fill {
    width: var(--bar-width, 100%) !important;
}

.economic-details h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.economic-amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-orange-light);
    margin-bottom: var(--spacing-xs);
}

.economic-period {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, rgba(107, 70, 193, 0.2), rgba(255, 107, 53, 0.2));
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.cta-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
}

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

.cta-description {
    font-size: 1.125rem;
    color: var(--color-gray-400);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.cta-buttons {
    margin-bottom: var(--spacing-lg);
}

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

.cta-stat-item {
    text-align: center;
}

.cta-stat-item strong {
    display: block;
    font-size: 2rem;
    font-weight: 900;
    font-family: var(--font-display);
    background: linear-gradient(135deg, var(--color-purple-light), var(--color-orange));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cta-stat-item span {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-dark-lighter);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    color: var(--color-white);
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-display);
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    color: var(--color-gray-600);
}

.footer-column h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
}

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

.footer-column a {
    color: var(--color-gray-600);
    text-decoration: none;
    transition: var(--transition-fast);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.footer-column a:hover {
    color: var(--color-purple-light);
    transform: translateX(4px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-gray-600);
    font-size: 0.875rem;
}

.footer-bottom p {
    margin-bottom: var(--spacing-xs);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        padding-left: 90px;
    }
    
    .timeline-number {
        left: 0;
        width: 60px;
        height: 60px;
        font-size: 1.25rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .reasons-grid {
        grid-template-columns: 1fr;
    }
    
    .topics-grid {
        grid-template-columns: 1fr;
    }
    
    .ecosystem-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        width: 100%;
        justify-content: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    .cta-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        padding-left: 70px;
    }
    
    .timeline-number {
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}