/* =============================================================================
   nLight.fit Landing Page Styles
   Modern, AI-forward SaaS design with dark theme and glassmorphism
   ============================================================================= */

/* -----------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   ----------------------------------------------------------------------------- */
:root {
    /* Colors - Dark Theme */
    --color-bg: #0a0a0b;
    --color-bg-elevated: #111113;
    --color-bg-card: #161618;
    --color-bg-card-hover: #1c1c1f;
    
    /* Accent Colors */
    --color-primary: #39ff14;          /* Neon green from brand */
    --color-primary-dim: rgba(57, 255, 20, 0.1);
    --color-primary-glow: rgba(57, 255, 20, 0.3);
    --color-secondary: #00d4ff;        /* Cyan accent */
    --color-accent: #8b5cf6;           /* Purple accent */
    
    /* Text Colors */
    --color-text: #ffffff;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;
    
    /* Status Colors */
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    
    /* Borders & Surfaces */
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);
    --color-glass: rgba(255, 255, 255, 0.03);
    --color-glass-hover: rgba(255, 255, 255, 0.06);
    
    /* 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;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px var(--color-primary-glow);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    
    /* Container widths */
    --container-max: 1200px;
    --container-narrow: 800px;
}

/* -----------------------------------------------------------------------------
   CSS Reset & Base Styles
   ----------------------------------------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* -----------------------------------------------------------------------------
   Utility Classes
   ----------------------------------------------------------------------------- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

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

.text-success {
    color: var(--color-success);
}

/* -----------------------------------------------------------------------------
   Button Styles
   ----------------------------------------------------------------------------- */
.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);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg);
    box-shadow: 0 0 20px var(--color-primary-dim);
}

.btn-primary:hover {
    background: #4dff2a;
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

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

.btn-ghost:hover {
    background: var(--color-glass-hover);
    border-color: var(--color-border-hover);
}

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

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

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

.btn-block {
    width: 100%;
}

/* -----------------------------------------------------------------------------
   Navigation
   ----------------------------------------------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: baseline;
}

.logo-n {
    color: #666;
}

.logo-light {
    color: #888;
}

.logo-fit {
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    gap: var(--space-xl);
}

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

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

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

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 10px;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-fast);
}

/* -----------------------------------------------------------------------------
   Hero Section
   ----------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding: var(--space-3xl) 0;
    overflow: hidden;
}

/* Animated background orbs */
.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 20s infinite ease-in-out;
}

.hero-orb-1 {
    width: 600px;
    height: 600px;
    background: var(--color-primary);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.hero-orb-2 {
    width: 400px;
    height: 400px;
    background: var(--color-secondary);
    bottom: -100px;
    left: -100px;
    animation-delay: -5s;
}

.hero-orb-3 {
    width: 300px;
    height: 300px;
    background: var(--color-accent);
    top: 50%;
    left: 30%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -30px) scale(1.1);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.9);
    }
    75% {
        transform: translate(-30px, -20px) scale(1.05);
    }
}

.hero-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-primary-dim);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.hero-subtitle em {
    color: var(--color-primary);
    font-style: normal;
}

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

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.trust-item svg {
    color: var(--color-primary);
}

/* Hero Visual - Mock Chat */
.hero-visual {
    display: flex;
    justify-content: center;
}

.hero-card {
    width: 100%;
    max-width: 420px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    animation: heroFloat 6s ease-in-out infinite;
}

@keyframes heroFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.mock-chat {
    display: flex;
    flex-direction: column;
    height: 400px;
}

.mock-chat-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-elevated);
}

.mock-avatar {
    width: 40px;
    height: 40px;
    background: var(--color-primary-dim);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.mock-status {
    display: flex;
    flex-direction: column;
}

.mock-name {
    font-weight: 600;
    font-size: 0.9375rem;
}

.mock-online {
    font-size: 0.75rem;
    color: var(--color-success);
}

.mock-messages {
    flex: 1;
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    overflow: hidden;
}

.mock-message {
    max-width: 85%;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    line-height: 1.5;
}

.mock-message.user {
    align-self: flex-end;
    background: var(--color-primary);
    color: var(--color-bg);
}

.mock-message.ai {
    align-self: flex-start;
    background: var(--color-glass);
    border: 1px solid var(--color-border);
}

.mock-input {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-elevated);
}

.mock-placeholder {
    flex: 1;
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.mock-voice-btn {
    width: 36px;
    height: 36px;
    background: var(--color-primary-dim);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-muted);
    font-size: 0.75rem;
    animation: bounce 2s infinite;
}

.scroll-mouse {
    width: 24px;
    height: 36px;
    border: 2px solid var(--color-text-muted);
    border-radius: 12px;
    position: relative;
}

.scroll-wheel {
    width: 4px;
    height: 8px;
    background: var(--color-text-muted);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 2s infinite;
}

@keyframes scrollWheel {
    0%, 100% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    50% {
        opacity: 0.3;
        transform: translateX(-50%) translateY(10px);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(5px);
    }
}

/* -----------------------------------------------------------------------------
   Section Styles (Shared)
   ----------------------------------------------------------------------------- */
section {
    padding: var(--space-3xl) 0;
}

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

/* NOTE: Compact header variant for simpler sections */
.section-header.compact {
    margin-bottom: var(--space-xl);
}

.section-header.compact .section-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--space-sm);
}

.section-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--color-glass);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--color-text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* -----------------------------------------------------------------------------
   Features Section
   ----------------------------------------------------------------------------- */
.features {
    background: var(--color-bg-elevated);
}

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

.feature-card {
    position: relative;
    padding: var(--space-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    /* Animation prep */
    opacity: 0;
    transform: translateY(20px);
}

.feature-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    border-color: var(--color-border-hover);
    background: var(--color-bg-card-hover);
    transform: translateY(-2px);
}

.feature-card.featured {
    border-color: var(--color-primary);
    background: linear-gradient(180deg, var(--color-primary-dim) 0%, var(--color-bg-card) 100%);
}

.feature-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 12px;
    background: var(--color-primary);
    color: var(--color-bg);
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.feature-icon {
    width: 44px;
    height: 44px;
    background: var(--color-primary-dim);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.feature-description {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.feature-list li::before {
    content: '✓';
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.75rem;
}

/* -----------------------------------------------------------------------------
   Modules Section
   ----------------------------------------------------------------------------- */
.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
}

.module-card {
    padding: var(--space-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    /* Animation prep */
    opacity: 0;
    transform: translateY(15px);
}

.module-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.module-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

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

.module-title {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.module-desc {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* -----------------------------------------------------------------------------
   Mobile App Section - iOS Home Screen Guide
   ----------------------------------------------------------------------------- */
.mobile-app,
.mobile-app-page {
    background: var(--color-bg);
}

/* NOTE: Standalone page styling */
.mobile-app-page {
    padding-top: 120px; /* Fixed padding to clear navbar */
    min-height: 100vh;
}

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

.mobile-app-page .section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--space-sm);
}

.back-link {
    text-align: center;
    margin-top: var(--space-xl);
}

/* NOTE: Active nav link styling */
.nav-links a.active {
    color: var(--color-primary);
}

/* NOTE: Single column vertical steps */
.mobile-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    max-width: 320px;
    margin: 0 auto var(--space-xl);
}

.mobile-step {
    display: flex;
    flex-direction: column;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    /* Animation prep */
    opacity: 0;
    transform: translateY(20px);
}

.mobile-step.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.mobile-step:hover {
    border-color: var(--color-primary);
}

/* Step header with number and text */
.step-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
}

.step-number {
    width: 28px;
    height: 28px;
    min-width: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: var(--color-bg);
    font-weight: 700;
    font-size: 0.875rem;
    border-radius: 50%;
}

.step-content {
    flex: 1;
}

.step-content h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 0;
    color: var(--color-text-primary);
}

.step-content p {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    line-height: 1.4;
    margin: 0;
}

.step-content strong {
    color: var(--color-primary);
}

/* Screenshot image */
.step-image {
    width: 100%;
    background: var(--color-bg);
}

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

.mobile-note {
    text-align: center;
    padding: var(--space-md);
    background: rgba(57, 255, 20, 0.1);
    border: 1px solid rgba(57, 255, 20, 0.2);
    border-radius: var(--radius-md);
    max-width: 320px;
    margin: 0 auto;
}

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

/* -----------------------------------------------------------------------------
   Demo Section
   ----------------------------------------------------------------------------- */
.demo {
    background: var(--color-bg-elevated);
}

.demo-showcase {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.demo-tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-sm);
    gap: var(--space-sm);
    background: var(--color-bg-elevated);
}

.demo-tab {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.demo-tab:hover {
    color: var(--color-text);
    background: var(--color-glass);
}

.demo-tab.active {
    color: var(--color-primary);
    background: var(--color-primary-dim);
}

.demo-content {
    padding: var(--space-xl);
    min-height: 400px;
}

.demo-panel {
    display: none;
}

.demo-panel.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Conversation Demo */
.conversation-demo {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.conv-message {
    display: flex;
    gap: var(--space-md);
    max-width: 80%;
    opacity: 0;
    transform: translateX(-20px);
}

.conv-message.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.conv-message.user-msg {
    align-self: flex-end;
    flex-direction: row-reverse;
    transform: translateX(20px);
}

.conv-message.user-msg.animate-in {
    transform: translateX(0);
}

.conv-avatar {
    width: 36px;
    height: 36px;
    background: var(--color-glass);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.conv-bubble {
    padding: var(--space-md);
    background: var(--color-glass);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
}

.user-msg .conv-bubble {
    background: var(--color-primary);
    color: var(--color-bg);
    border-color: var(--color-primary);
}

.insight-card {
    margin-top: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-text-muted);
}

.insight-card.success {
    border-left-color: var(--color-success);
}

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

.insight-icon {
    font-size: 1rem;
}

.insight-title {
    font-weight: 600;
    font-size: 0.8125rem;
}

.insight-card p {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    margin: 0;
}

/* Analytics Demo */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.stat-card {
    padding: var(--space-lg);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    opacity: 0;
    transform: scale(0.95);
}

.stat-card.animate-in {
    opacity: 1;
    transform: scale(1);
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.stat-unit {
    font-size: 1rem;
    color: var(--color-text-secondary);
    font-weight: 400;
}

.stat-progress {
    height: 4px;
    background: var(--color-glass);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: var(--space-sm);
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: 2px;
    transition: width 1s ease;
}

.stat-meta {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.stat-trend {
    font-size: 0.8125rem;
}

.stat-trend.up {
    color: var(--color-success);
}

/* Tracking Demo */
.tracking-demo {
    overflow-x: auto;
}

.tracking-table {
    min-width: 500px;
}

.tracking-header,
.tracking-row {
    display: grid;
    grid-template-columns: 80px repeat(5, 1fr);
    gap: var(--space-md);
    padding: var(--space-md);
    align-items: center;
}

.tracking-header {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-muted);
    border-bottom: 1px solid var(--color-border);
}

.tracking-row {
    border-bottom: 1px solid var(--color-border);
    font-size: 0.875rem;
    opacity: 0;
    transform: translateX(-10px);
}

.tracking-row.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.tracking-row.current {
    background: var(--color-primary-dim);
}

.tracking-row .date {
    font-weight: 500;
}

.tracking-row .check {
    color: var(--color-success);
}

.tracking-row .check.pending {
    color: var(--color-text-muted);
}

.tracking-row .pending {
    color: var(--color-text-muted);
}

.tracking-row .tag {
    padding: 2px 8px;
    background: var(--color-glass);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
}

.tracking-row .tag.success {
    background: rgba(34, 197, 94, 0.1);
    color: var(--color-success);
}

.tracking-row .tag.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
}

/* -----------------------------------------------------------------------------
   Tech Stack Section
   ----------------------------------------------------------------------------- */
.tech-stack {
    text-align: center;
}

.tech-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.tech-header p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    margin-bottom: var(--space-xl);
}

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

.tech-card {
    padding: var(--space-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    min-width: 140px;
    opacity: 0;
    transform: translateY(20px);
}

.tech-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.tech-logo {
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.tech-name {
    font-weight: 600;
    font-size: 0.9375rem;
    margin-bottom: var(--space-xs);
}

.tech-desc {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.tech-features {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
}

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

.tech-feature svg {
    color: var(--color-primary);
}


/* -----------------------------------------------------------------------------
   Pricing Section
   ----------------------------------------------------------------------------- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    align-items: start;
}

/* NOTE: Two-tier pricing layout - centered and wider cards */
.pricing-grid.two-tier {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: stretch;
    gap: var(--space-xl);
    max-width: 900px;
    margin: 0 auto;
}

.pricing-grid.two-tier .pricing-card {
    flex: 0 1 380px;
    width: 380px;
}

.pricing-card {
    position: relative;
    padding: var(--space-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(30px);
}

.pricing-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.pricing-card.featured {
    border-color: var(--color-primary);
    background: linear-gradient(180deg, var(--color-primary-dim) 0%, var(--color-bg-card) 100%);
}

.pricing-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 12px;
    background: var(--color-primary);
    color: var(--color-bg);
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-header {
    text-align: center;
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-md);
}

.pricing-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--color-text-secondary);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}

.price-amount {
    font-size: 2.5rem;
    font-weight: 700;
}

.price-period {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.pricing-desc {
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
}

.pricing-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
}

.pricing-features li.highlight {
    color: var(--color-text);
}

.pricing-features li.disabled {
    color: var(--color-text-muted);
}

.pricing-features li.disabled svg {
    color: var(--color-text-muted);
}

.pricing-features svg {
    color: var(--color-primary);
    flex-shrink: 0;
    width: 14px;
    height: 14px;
}

/* -----------------------------------------------------------------------------
   Final CTA Section
   ----------------------------------------------------------------------------- */
.final-cta {
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-elevated) 100%);
    text-align: center;
    padding: var(--space-3xl) 0;
}

.cta-content h2 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.cta-quote {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    font-style: italic;
    margin-bottom: var(--space-xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

/* NOTE: Stacked, centered feature list under CTA */
.cta-features {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    list-style: none;
    padding: 0;
    margin: 0;
}

.cta-features li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}

.cta-features li::before {
    content: '✓';
    color: var(--color-primary);
    font-weight: 600;
}

/* -----------------------------------------------------------------------------
   Footer - Minimal
   ----------------------------------------------------------------------------- */
.footer {
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    padding: var(--space-xl) 0;
}

.footer-simple {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.footer-simple .nav-logo {
    display: inline-flex;
    margin-bottom: var(--space-sm);
}

.footer-simple p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    line-height: 1.6;
}

.footer-bottom {
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.75rem;
}

/* -----------------------------------------------------------------------------
   Responsive Design
   ----------------------------------------------------------------------------- */

/* Tablet */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-trust {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 380px;
        margin: 0 auto;
    }
    
    /* Keep pricing side-by-side on tablet */
    .pricing-grid.two-tier {
        flex-direction: row;
        max-width: 820px;
    }
    
    .pricing-grid.two-tier .pricing-card {
        flex: 1;
        width: auto;
        min-width: 280px;
    }
    
}

/* Mobile */
@media (max-width: 768px) {
    .nav-links,
    .nav-actions {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-bg-elevated);
        border-bottom: 1px solid var(--color-border);
        padding: var(--space-lg);
        gap: var(--space-md);
    }
    
    .hero {
        min-height: auto;
        padding: calc(var(--space-3xl) + 60px) 0 var(--space-2xl);
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    /* NOTE: Reduce hero subtitle size on mobile to prevent awkward text wrapping */
    .hero-subtitle {
        font-size: 1.1rem;
        line-height: 1.6;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-trust {
        flex-direction: column;
        align-items: center;
    }
    
    .scroll-indicator {
        display: none;
    }
    
    .stat-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        gap: var(--space-sm);
    }
    
    .tech-features {
        flex-direction: column;
        align-items: center;
        gap: var(--space-sm);
    }
    
    section {
        padding: var(--space-2xl) 0;
    }
    
    /* Stack pricing cards on mobile */
    .pricing-grid.two-tier {
        flex-direction: column;
        align-items: center;
    }
    
    .pricing-grid.two-tier .pricing-card {
        width: 100%;
        max-width: 380px;
    }
    
    /* NOTE: Demo section - reduce padding and expand content width */
    .demo-content {
        padding: var(--space-md);
    }
    
    .conv-message {
        max-width: 95%;
    }
    
    .conv-bubble {
        padding: var(--space-sm) var(--space-md);
    }
    
    .insight-card {
        margin-top: var(--space-sm);
        padding: var(--space-sm) var(--space-md);
    }
}

/* =============================================================================
   iPhone-Specific Optimizations (logical width ~393-430px)
   NOTE: Typical iPhones have CSS logical widths around 375-430px in portrait
   ============================================================================= */
@media (max-width: 430px) {
    /* NOTE: Tighter container padding on iPhone */
    .container {
        padding: 0 var(--space-md);
    }
    
    /* NOTE: Hero section - smaller text to fit without awkward wrapping */
    .hero {
        padding: calc(var(--space-2xl) + 60px) 0 var(--space-xl);
    }
    
    .hero-badge {
        font-size: 0.7rem;
        padding: var(--space-xs) var(--space-sm);
        margin-bottom: var(--space-md);
    }
    
    .hero-title {
        font-size: 1.5rem;
        margin-bottom: var(--space-md);
    }
    
    /* NOTE: Subtitle font reduced so "listens" doesn't wrap to new line */
    .hero-subtitle {
        font-size: 0.95rem;
        line-height: 1.5;
        margin-bottom: var(--space-lg);
    }
    
    .hero-cta {
        gap: var(--space-sm);
        margin-bottom: var(--space-lg);
    }
    
    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .hero-trust {
        gap: var(--space-sm);
    }
    
    .trust-item {
        font-size: 0.8rem;
    }
    
    /* NOTE: Section headers - more compact on iPhone */
    .section-header.compact {
        margin-bottom: var(--space-md);
    }
    
    .section-header.compact .section-title {
        font-size: 1.25rem;
    }
    
    section {
        padding: var(--space-xl) 0;
    }
    
    /* NOTE: Features section - tighter spacing */
    .feature-card {
        padding: var(--space-md);
    }
    
    .feature-title {
        font-size: 1rem;
    }
    
    .feature-description {
        font-size: 0.8125rem;
    }
    
    /* NOTE: Modules grid - allow full width cards */
    .modules-grid {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }
    
    .module-card {
        padding: var(--space-sm) var(--space-md);
    }
    
    .module-icon {
        font-size: 1.25rem;
        margin-bottom: var(--space-xs);
    }
    
    .module-title {
        font-size: 0.875rem;
    }
    
    .module-desc {
        font-size: 0.75rem;
    }
    
    /* NOTE: Demo section - maximize content width on iPhone */
    .demo-tabs {
        padding: var(--space-xs);
        gap: var(--space-xs);
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .demo-tab {
        padding: var(--space-xs) var(--space-sm);
        font-size: 0.8125rem;
        white-space: nowrap;
    }
    
    .demo-content {
        padding: var(--space-sm);
        min-height: 350px;
    }
    
    /* NOTE: Conversation demo - wider messages to use available space */
    .conversation-demo {
        gap: var(--space-md);
    }
    
    .conv-message {
        max-width: 100%;
    }
    
    .conv-avatar {
        width: 28px;
        height: 28px;
        font-size: 0.875rem;
    }
    
    .conv-bubble {
        padding: var(--space-sm);
        font-size: 0.8125rem;
    }
    
    .insight-card {
        margin-top: var(--space-sm);
        padding: var(--space-sm);
    }
    
    .insight-title {
        font-size: 0.75rem;
    }
    
    .insight-card p {
        font-size: 0.75rem;
    }
    
    /* NOTE: Stats demo - tighter layout */
    .stat-card {
        padding: var(--space-md);
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    /* NOTE: Tech stack - more compact */
    .tech-header h3 {
        font-size: 1rem;
    }
    
    .tech-header p {
        font-size: 0.8125rem;
    }
    
    .tech-card {
        padding: var(--space-md);
        min-width: 100px;
    }
    
    .tech-name {
        font-size: 0.8125rem;
    }
    
    .tech-desc {
        font-size: 0.75rem;
    }
    
    .tech-feature {
        font-size: 0.8125rem;
    }
    
    /* NOTE: Pricing - full width cards */
    .pricing-grid.two-tier .pricing-card {
        max-width: 100%;
    }
    
    .pricing-card {
        padding: var(--space-md);
    }
    
    .price-amount {
        font-size: 2rem;
    }
    
    /* NOTE: Final CTA - tighter */
    .cta-content h2 {
        font-size: 1.25rem;
    }
    
    .cta-quote {
        font-size: 0.9375rem;
    }
    
    .cta-features li {
        font-size: 0.8125rem;
    }
    
    /* NOTE: Footer - more compact */
    .footer-simple p {
        font-size: 0.8125rem;
    }
}

/* Animation delays for staggered effects */
.feature-card:nth-child(1) { transition-delay: 0ms; }
.feature-card:nth-child(2) { transition-delay: 100ms; }
.feature-card:nth-child(3) { transition-delay: 200ms; }

.module-card:nth-child(1) { transition-delay: 0ms; }
.module-card:nth-child(2) { transition-delay: 50ms; }
.module-card:nth-child(3) { transition-delay: 100ms; }
.module-card:nth-child(4) { transition-delay: 150ms; }
.module-card:nth-child(5) { transition-delay: 200ms; }
.module-card:nth-child(6) { transition-delay: 250ms; }
.module-card:nth-child(7) { transition-delay: 300ms; }

.stat-card:nth-child(1) { transition-delay: 0ms; }
.stat-card:nth-child(2) { transition-delay: 100ms; }
.stat-card:nth-child(3) { transition-delay: 200ms; }
.stat-card:nth-child(4) { transition-delay: 300ms; }

.tracking-row:nth-child(1) { transition-delay: 0ms; }
.tracking-row:nth-child(2) { transition-delay: 50ms; }
.tracking-row:nth-child(3) { transition-delay: 100ms; }
.tracking-row:nth-child(4) { transition-delay: 150ms; }

.tech-card:nth-child(1) { transition-delay: 0ms; }
.tech-card:nth-child(2) { transition-delay: 50ms; }
.tech-card:nth-child(3) { transition-delay: 100ms; }
.tech-card:nth-child(4) { transition-delay: 150ms; }

.pricing-card:nth-child(1) { transition-delay: 0ms; }
.pricing-card:nth-child(2) { transition-delay: 100ms; }

/* Conv messages animation delays */
.conv-message:nth-child(1) { transition-delay: 0ms; }
.conv-message:nth-child(2) { transition-delay: 200ms; }