:root {
    /* Colors */
    --bg: #09090b;
    --bg-elevated: #18181b;
    --bg-card: #1c1c21;
    --bg-hover: #27272a;
    
    --text: #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    --accent: #818cf8;
    --accent-hover: #6366f1;
    --accent-glow: rgba(129, 140, 248, 0.15);
    
    --border: #27272a;
    --border-light: #3f3f46;
    
    /* Product colors */
    --core-color: #818cf8;
    --velvet-color: #a78bfa;
    --market-color: #34d399;
    --fleet-color: #fb923c;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Borders */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* ==========================================
   RESET & BASE
   ========================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

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

a:hover {
    color: var(--accent);
}

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

/* ==========================================
   LAYOUT
   ========================================== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.container-sm {
    max-width: 900px;
}

.container-lg {
    max-width: 1440px;
}

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

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: white;
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 30px var(--accent-glow);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-light);
}

.btn-outline:hover {
    background: var(--bg-hover);
    border-color: var(--text-muted);
    color: var(--text);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
}

.btn-ghost:hover {
    color: var(--text);
    background: var(--bg-hover);
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-icon {
    padding: 0.625rem;
    aspect-ratio: 1;
}

/* ==========================================
   HEADER
   ========================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(9, 9, 11, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: 1.125rem;
}

.brand img {
    border-radius: var(--radius-sm);
}

.brand-by {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 0.875rem;
}

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

.main-nav a {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

/* Nav dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    padding: 0;
}

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

.nav-dropdown-trigger svg {
    transition: transform var(--transition-fast);
}

.nav-dropdown:hover .nav-dropdown-trigger svg {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-sm);
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
    z-index: 200;
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
}

.nav-dropdown-menu a {
    display: block;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.nav-dropdown-menu a:hover {
    background: var(--bg-hover);
    color: var(--text);
}

.nav-dropdown-menu a strong {
    display: block;
    color: var(--text);
    font-weight: 600;
    margin-bottom: 2px;
}

.nav-dropdown-menu a span {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* Mobile nav elements */
.mobile-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text);
    cursor: pointer;
}

.main-nav .mobile-close,
.main-nav .mobile-nav-label,
.main-nav .mobile-nav-divider {
    display: none;
}

/* ==========================================
   HERO SECTIONS
   ========================================== */
.hero {
    position: relative;
    padding: var(--space-4xl) 0;
    text-align: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse 80% 50% at 50% -20%, var(--accent-glow), transparent);
    pointer-events: none;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.5rem 1rem;
    background: var(--accent-glow);
    border: 1px solid rgba(129, 140, 248, 0.2);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: var(--space-xl);
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.hero .lead {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.6;
}

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

/* Product-specific hero gradients */
.hero-core::before {
    background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(129, 140, 248, 0.2), transparent);
}

.hero-velvet::before {
    background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(167, 139, 250, 0.2), transparent);
}

.hero-market::before {
    background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(52, 211, 153, 0.2), transparent);
}

.hero-fleet::before {
    background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(251, 146, 60, 0.2), transparent);
}

/* ==========================================
   SECTION HEADERS
   ========================================== */
.section {
    padding: var(--space-4xl) 0;
}

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

.section-header h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    margin-bottom: var(--space-md);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================
   FEATURE ACCORDION
   A unified expandable feature list
   ========================================== */
.feature-accordion {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    max-width: 900px;
    margin: 0 auto;
}

.feature-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition-base);
}

.feature-item:hover {
    border-color: var(--border-light);
}

.feature-item.active {
    border-color: var(--accent);
}

.feature-header {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg) var(--space-xl);
    cursor: pointer;
    user-select: none;
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--bg-hover);
    border-radius: var(--radius-md);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.feature-info {
    flex: 1;
    min-width: 0;
}

.feature-info h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.feature-info p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0;
}

.feature-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-hover);
    color: var(--text-muted);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.feature-item:hover .feature-toggle {
    background: var(--accent-glow);
    color: var(--accent);
}

.feature-item.active .feature-toggle {
    background: var(--accent);
    color: white;
    transform: rotate(45deg);
}

.feature-content {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows var(--transition-slow);
}

.feature-item.active .feature-content {
    grid-template-rows: 1fr;
}

.feature-content-inner {
    overflow: hidden;
}

.feature-details {
    padding: 0 var(--space-xl) var(--space-xl);
    padding-left: calc(var(--space-xl) + 48px + var(--space-lg));
}

.feature-details ul {
    list-style: none;
    display: grid;
    gap: var(--space-sm);
}

.feature-details li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.feature-details li::before {
    content: '→';
    color: var(--accent);
    font-weight: 600;
    flex-shrink: 0;
}

.feature-code {
    margin-top: var(--space-md);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    overflow-x: auto;
}

.feature-code pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.feature-code code {
    font-family: inherit;
}

/* ==========================================
   FEATURE GRID (Alternative layout)
   ========================================== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    border-color: var(--border-light);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.5);
}

.feature-card .feature-icon {
    margin-bottom: var(--space-lg);
}

.feature-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin: 0;
}

/* Large feature card */
.feature-card-lg {
    grid-column: span 2;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-xl);
    align-items: center;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-elevated) 100%);
    border-color: var(--border-light);
}

.feature-card-lg .feature-icon {
    width: 80px;
    height: 80px;
    font-size: 2.5rem;
    margin-bottom: 0;
}

/* ==========================================
   ECOSYSTEM SECTION
   ========================================== */
.ecosystem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    max-width: 900px;
    margin: 0 auto;
}

.eco-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.eco-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-light);
}

.eco-card .eco-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.eco-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.eco-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin: 0;
}

.eco-card-core {
    --card-accent: var(--core-color);
}

.eco-card-velvet {
    --card-accent: var(--velvet-color);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(167, 139, 250, 0.05) 100%);
    border-color: rgba(167, 139, 250, 0.3);
}

.eco-card-market {
    --card-accent: var(--market-color);
}

.eco-card-fleet {
    --card-accent: var(--fleet-color);
}

.eco-card-core:hover { border-color: var(--core-color); }
.eco-card-velvet:hover { border-color: var(--velvet-color); }
.eco-card-market:hover { border-color: var(--market-color); }
.eco-card-fleet:hover { border-color: var(--fleet-color); }

/* ==========================================
   STACK DIAGRAM (Market page)
   ========================================== */
.stack-diagram {
    max-width: 500px;
    margin: 0 auto var(--space-2xl);
}

.stack-layer {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg) var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.stack-layer:hover {
    transform: translateX(4px);
}

.stack-layer-market {
    border-color: rgba(52, 211, 153, 0.4);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(52, 211, 153, 0.05) 100%);
}

.stack-layer-velvet {
    border-color: rgba(167, 139, 250, 0.4);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(167, 139, 250, 0.05) 100%);
}

.stack-layer-core {
    border-color: rgba(129, 140, 248, 0.4);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(129, 140, 248, 0.05) 100%);
}

.stack-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.stack-info h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
}

.stack-info p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

.stack-connector {
    width: 2px;
    height: 24px;
    background: var(--border-light);
    margin: 0 auto;
    position: relative;
}

.stack-connector::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid var(--border-light);
}

.stack-benefits {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    max-width: 800px;
    margin: 0 auto;
}

.stack-benefit {
    text-align: center;
}

.stack-benefit strong {
    display: block;
    font-size: 0.9375rem;
    margin-bottom: var(--space-xs);
    color: var(--text);
}

.stack-benefit span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .stack-benefits {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   FLEET ARCHITECTURE DIAGRAM
   ========================================== */
.fleet-architecture {
    max-width: 900px;
    margin: 0 auto;
}

.fleet-panel {
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(251, 146, 60, 0.08) 100%);
    border: 2px solid rgba(251, 146, 60, 0.5);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    margin-bottom: var(--space-lg);
}

.fleet-panel-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

.fleet-panel h3 {
    font-size: 1.25rem;
    color: var(--fleet-color);
    margin-bottom: var(--space-xs);
}

.fleet-panel p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin: 0;
}

.fleet-connector-down {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-lg);
}

.fleet-connector-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(180deg, var(--fleet-color) 0%, var(--accent) 100%);
    position: relative;
}

.fleet-connector-line::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 8px solid var(--accent);
}

.fleet-agents {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.fleet-agent {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.fleet-agent:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.fleet-agent-icon {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.fleet-agent h4 {
    font-size: 1rem;
    margin-bottom: var(--space-xs);
}

.fleet-agent p {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin: 0;
}

.fleet-agent-connector {
    width: 2px;
    height: 20px;
    background: var(--border-light);
    margin: 0 auto var(--space-sm);
}

.fleet-targets {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.fleet-target {
    background: var(--bg-elevated);
    border: 1px dashed var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    text-align: center;
}

.fleet-target-icon {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.fleet-target h5 {
    font-size: 0.875rem;
    margin-bottom: 2px;
    font-weight: 600;
}

.fleet-target span {
    line-height: 0.15rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .fleet-agents {
        grid-template-columns: 1fr;
    }
    
    .fleet-targets {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   VELVETSCORE SLIDER
   ========================================== */
.vs-slider-container {
    max-width: 800px;
    margin: 0 auto var(--space-3xl);
}

.vs-slider {
    display: flex;
    height: 16px;
    border-radius: 100px;
    overflow: hidden;
    background: var(--bg);
    border: 1px solid var(--border);
}

.vs-segment {
    flex: 1;
    position: relative;
}

.vs-segment:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--bg);
}

.vs-basic { background: var(--text-muted); }
.vs-standard { background: var(--market-color); }
.vs-enhanced { background: var(--accent); }
.vs-premium { background: var(--fleet-color); }

.vs-labels {
    display: flex;
    margin-top: var(--space-md);
}

.vs-label {
    flex: 1;
    text-align: center;
}

.vs-label-range {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.vs-label-name {
    display: block;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text);
}

/* Weight breakdown bars */
.vs-weights {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    max-width: 600px;
    margin: 0 auto;
}

.vs-weight-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.vs-weight-icon {
    font-size: 1.125rem;
}

.vs-weight-name {
    flex: 1;
    font-size: 0.9375rem;
    color: var(--text);
}

.vs-weight-value {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent);
}

.vs-weight-bar {
    height: 8px;
    background: var(--bg);
    border-radius: 100px;
    overflow: hidden;
}

.vs-weight-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent) 0%, var(--fleet-color) 100%);
    border-radius: 100px;
    transition: width 0.5s ease;
}

@media (max-width: 640px) {
    .vs-label-name {
        font-size: 0.8125rem;
    }
    
    .vs-label-range {
        font-size: 0.75rem;
    }
}

/* ==========================================
   TERMINAL / CODE BLOCK
   ========================================== */
.terminal {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    max-width: 600px;
    margin: var(--space-2xl) auto 0;
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

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

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27c93f; }

.terminal-body {
    padding: var(--space-lg);
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.terminal-prompt {
    color: var(--market-color);
    user-select: none;
    margin-right: var(--space-sm);
}

/* Terminal tabs (integrated switcher) */
.terminal-tabs {
    display: flex;
    margin-left: auto;
    gap: 2px;
    background: var(--bg);
    padding: 3px;
    border-radius: var(--radius-sm);
}

.terminal-tab {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.35rem 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

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

.terminal-tab.active {
    color: var(--text);
    background: var(--bg-elevated);
}

.terminal-copy {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.35rem 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-mono);
    margin-left: var(--space-sm);
}

.terminal-copy:hover {
    color: var(--text);
    border-color: var(--accent);
}

/* VelvetScore tier grid (4 columns) */
.velvet-score-grid {
    grid-template-columns: repeat(4, 1fr);
    max-width: 100%;
    margin-top: var(--space-3xl);
}

/* ==========================================
   LICENSE SECTION
   ========================================== */
.license-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    max-width: 900px;
    margin: 0 auto;
}

.license-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
}

.license-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.license-type {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    margin-bottom: var(--space-md);
}

.license-card ul {
    list-style: none;
    margin-top: var(--space-md);
}

.license-card li {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    padding: var(--space-xs) 0;
}

.license-free {
    border-color: rgba(52, 211, 153, 0.3);
}

.license-free .license-type {
    background: rgba(52, 211, 153, 0.15);
    color: var(--market-color);
}

.license-dual {
    border-color: rgba(129, 140, 248, 0.3);
}

.license-dual .license-type {
    background: var(--accent-glow);
    color: var(--accent);
}

.license-paid {
    border-color: rgba(251, 146, 60, 0.3);
}

.license-paid .license-type {
    background: rgba(251, 146, 60, 0.15);
    color: var(--fleet-color);
}

/* ==========================================
   FAQ SECTION
   ========================================== */
.faq-section {
    margin-top: var(--space-3xl);
}

.faq-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.faq-header h2 {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.faq-header p {
    color: var(--text-muted);
    font-size: 1.0625rem;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    position: relative;
    overflow: hidden;
    transition: border-color 0.2s, transform 0.2s;
}

.faq-item::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    pointer-events: none;
    background: linear-gradient(135deg, rgba(129, 140, 248, 0.2), transparent 50%);
    opacity: 0;
    transition: opacity 0.2s;
}

.faq-item:hover {
    border-color: rgba(129, 140, 248, 0.4);
    transform: translateY(-2px);
}

.faq-item:hover::after {
    opacity: 1;
}

.faq-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--accent-glow);
    margin-bottom: var(--space-sm);
    font-size: 1.25rem;
}

.faq-item h3 {
    margin-bottom: var(--space-sm);
    font-size: 1.125rem;
}

.faq-item p {
    color: var(--text-muted);
    margin-bottom: 0;
}

.faq-item a {
    color: var(--accent);
}

.faq-item a:hover {
    text-decoration: underline;
}

.faq-note {
    margin-top: var(--space-xl);
    padding: var(--space-lg) var(--space-xl);
    background: var(--accent-glow);
    border: 1px solid rgba(129, 140, 248, 0.25);
    border-radius: var(--radius-xl);
    text-align: center;
}

.faq-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.35rem 0.75rem;
    border-radius: 100px;
    background: rgba(129, 140, 248, 0.2);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.faq-note p {
    margin: 0;
    color: var(--text-secondary);
}

.faq-note a {
    color: var(--accent);
}

.faq-note a:hover {
    text-decoration: underline;
}

/* ==========================================
   PAGE CTA
   ========================================== */
.page-cta {
    padding: var(--space-3xl) 0;
    text-align: center;
    margin-top: var(--space-2xl);
}

.page-cta h2 {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.page-cta p {
    color: var(--text-muted);
    font-size: 1.0625rem;
    margin-bottom: var(--space-xl);
}

@media (max-width: 768px) {
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .license-table th,
    .license-table td {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.875rem;
    }
}

/* ==========================================
   CTA SECTION
   ========================================== */
.cta-section {
    padding: var(--space-4xl) 0;
    text-align: center;
    background: var(--bg-elevated);
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border) 20%, var(--accent) 50%, var(--border) 80%, transparent);
    opacity: 0.5;
}

.cta-section h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    margin-bottom: var(--space-md);
}

.cta-section p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--space-xl);
}

/* ==========================================
   FOOTER
   ========================================== */
.site-footer {
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-top {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.footer-logo img {
    border-radius: var(--radius-sm);
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: var(--space-lg);
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.social-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.footer-col h4 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text);
    margin-bottom: var(--space-md);
}

.footer-col a {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    padding: var(--space-xs) 0;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-version {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--accent);
    opacity: 0.7;
}

/* ==========================================
   PAGE HEADER
   ========================================== */
.page-header {
    padding: var(--space-3xl) 0;
    text-align: center;
    position: relative;
}

.page-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: min(600px, 80%);
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border) 20%, var(--accent) 50%, var(--border) 80%, transparent);
    opacity: 0.5;
}

.page-header h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-md);
}

.page-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* ==========================================
   TIMELINE (Roadmap)
   ========================================== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: var(--space-3xl) auto;
    padding-left: var(--space-xl);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    padding-left: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.timeline-marker {
    position: absolute;
    left: -2.45rem;
    top: 4px;
    width: 16px;
    height: 16px;
    background: var(--bg);
    border: 2px solid var(--accent);
    border-radius: 50%;
    z-index: 1;
}

.timeline-date {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--accent);
    margin-bottom: var(--space-sm);
}

.timeline-content h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.timeline-content ul {
    color: var(--text-secondary);
    padding-left: var(--space-lg);
}

.timeline-content li {
    margin-bottom: var(--space-xs);
}

/* Timeline states */
.timeline-item.in-progress .timeline-marker {
    background: var(--accent);
    box-shadow: 0 0 16px var(--accent-glow);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 8px var(--accent-glow); }
    50% { box-shadow: 0 0 20px var(--accent-glow); }
}

.timeline-item.planned .timeline-marker {
    background: transparent;
    border-style: dashed;
    border-color: var(--text-muted);
}

.timeline-item.planned .timeline-content {
    opacity: 0.6;
}

.timeline-item.completed .timeline-marker {
    background: var(--market-color);
    border-color: var(--market-color);
}

.timeline-item.completed .timeline-content h3 {
    color: var(--market-color);
}

.timeline-item.future .timeline-marker {
    background: transparent;
    border-style: dotted;
    border-color: var(--text-muted);
}

.timeline-item.future .timeline-content {
    opacity: 0.5;
}

.timeline-note {
    font-size: 0.875rem;
    font-style: italic;
    color: var(--text-muted);
    margin-top: var(--space-md);
}

/* ==========================================
   MISC COMPONENTS
   ========================================== */
.hidden {
    display: none !important;
}

.roadmap-note {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.roadmap-note p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin: 0;
}

/* Contact list */
.contact-list {
    max-width: 700px;
    margin: 0 auto;
    padding-bottom: var(--space-3xl);
}

.contact-item {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--border);
}

.contact-item:last-child {
    border-bottom: none;
}

.contact-info h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
}

.contact-info p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin: 0;
}

.contact-email {
    color: var(--accent);
    font-weight: 600;
}

/* Coming soon */
.coming-soon-hero {
    text-align: center;
    padding: var(--space-4xl) 0 var(--space-2xl);
}

.coming-soon-icon {
    font-size: 4rem;
    margin-bottom: var(--space-md);
}

.coming-soon-hero h1 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: var(--space-md);
}

.coming-soon-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-lg);
}

.coming-soon-date {
    color: var(--text-muted);
    font-size: 0.9375rem;
}

.coming-soon-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    max-width: 800px;
    margin: var(--space-xl) auto 0;
}

.coming-soon-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    margin-bottom: var(--space-lg);
}

.coming-soon-card-icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.coming-soon-card h3 {
    font-size: 1rem;
    margin-bottom: var(--space-sm);
}

.coming-soon-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Page CTA */
.page-cta {
    text-align: center;
    padding: var(--space-3xl) 0 var(--space-4xl);
    margin-top: var(--space-xl);
    position: relative;
}

.page-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: min(600px, 80%);
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border) 20%, var(--accent) 50%, var(--border) 80%, transparent);
    opacity: 0.5;
}

.page-cta h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.page-cta p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 1024px) {
    .ecosystem-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-card-lg {
        grid-column: span 1;
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .feature-card-lg .feature-icon {
        margin: 0 auto var(--space-lg);
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .site-header .main-nav {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        background: var(--bg);
        padding: calc(5rem + env(safe-area-inset-top, 0px)) var(--space-xl) var(--space-xl);
        gap: 0;
        z-index: 120;
        transform: translateX(100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
    }
    
    .site-header .main-nav.open {
        transform: translateX(0);
    }
    
    .main-nav .mobile-close {
        display: flex;
        position: absolute;
        top: calc(env(safe-area-inset-top, 0px) + 12px);
        right: 12px;
        width: 44px;
        height: 44px;
        align-items: center;
        justify-content: center;
        background: transparent;
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        color: var(--text);
        cursor: pointer;
    }
    
    .main-nav > a {
        font-size: 1.25rem;
        padding: var(--space-md) 0;
        border-bottom: 1px solid var(--border);
        color: var(--text);
    }
    
    .nav-dropdown {
        display: block;
        width: 100%;
    }
    
    .nav-dropdown-trigger {
        display: none;
    }
    
    .nav-dropdown-menu {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        background: transparent;
        border: none;
        padding: 0;
        min-width: auto;
    }
    
    .nav-dropdown-menu a {
        padding: 0.75rem 0;
        border-radius: 0;
        border-bottom: 1px solid var(--border);
    }
    
    .main-nav .mobile-nav-label {
        display: block;
        font-size: 0.75rem;
        text-transform: uppercase;
        letter-spacing: 0.1em;
        color: var(--text-muted);
        padding: var(--space-sm) 0;
        margin-top: var(--space-sm);
    }
    
    .main-nav .mobile-nav-divider {
        display: block;
        height: 1px;
        background: var(--border);
        margin: var(--space-md) 0;
    }
    
    .hero h1 {
        font-size: clamp(2rem, 8vw, 3rem);
    }
    
    .ecosystem-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .velvet-score-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .license-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        align-items: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }
    
    .feature-details {
        padding-left: var(--space-xl);
    }
    
    .coming-soon-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .ecosystem-grid {
        grid-template-columns: 1fr;
    }
    
    .velvet-score-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-col {
        padding-bottom: var(--space-lg);
        border-bottom: 1px solid var(--border);
    }
    
    .footer-col:last-child {
        border-bottom: none;
    }
}

@media (max-width: 480px) {
    .velvet-score-grid {
        grid-template-columns: 1fr;
    }
}