/* ============================================
   CSS Variables
   ============================================ */
:root {
    /* Couleurs principales */
    --color-primary: #4a9eff;
    --color-primary-dark: #3a8eef;
    --color-secondary: #4a9eff;
    --color-secondary-dark: #3a8eef;

    /* Dégradés (convertis en bleu uni) */
    --gradient-primary: #4a9eff;
    --gradient-primary-hover: #3a8eef;
    --gradient-accent: #4a9eff;

    /* Couleurs de statut */
    --color-success: #10b981;
    --color-info: #06b6d4;
    --color-warning: #f59e0b;

    /* Couleurs de texte et fond */
    --color-text-primary: #1f2937;
    --color-text-secondary: #6b7280;
    --color-text-muted: #9ca3af;
    --color-white: #ffffff;
    --color-black: #000000;

    /* Backgrounds */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f9fafb;
    --color-bg-tertiary: #f3f4f6;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;

    /* Fonts */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* ============================================
   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-primary);
    background: var(--color-bg-primary);
    overflow-x: hidden;
}

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

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

button {
    font-family: inherit;
    border: none;
    cursor: pointer;
    background: none;
    transition: all var(--transition-base);
}

ul, ol {
    list-style: none;
}

/* ============================================
   Utility Classes
   ============================================ */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-container {
    padding: 0 var(--spacing-lg);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.logo-link {
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.nav-link:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
}

.mobile-menu-btn {
    display: none;
    padding: var(--spacing-xs);
    color: var(--color-text-secondary);
}

.mobile-menu-btn:hover {
    color: var(--color-text-primary);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

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

.btn-full {
    width: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    background: var(--gradient-primary-hover);
    box-shadow: var(--shadow-xl);
    transform: translateY(-2px);
}

.btn-primary .arrow-icon {
    transition: transform var(--transition-base);
}

.btn-primary:hover .arrow-icon {
    transform: translateX(4px);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-text-primary);
    border: 2px solid var(--color-bg-tertiary);
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    background: var(--color-bg-secondary);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-bg-tertiary);
}

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

/* ============================================
   Hero Section
   ============================================ */
.hero {
    padding-top: 8rem;
    padding-bottom: 4rem;
    background: linear-gradient(to bottom, var(--color-bg-primary), var(--color-bg-secondary));
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(74, 158, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background: rgba(74, 158, 255, 0.1);
    border: 1px solid rgba(74, 158, 255, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.badge-icon {
    color: var(--color-primary);
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.title-line {
    display: block;
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

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

/* ============================================
   Trust Signals
   ============================================ */
.trust-signals {
    padding: 2rem 0;
    background: var(--color-bg-primary);
}

.trust-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    align-items: center;
}

.trust-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid;
    flex-shrink: 0;
    white-space: nowrap;
}

.trust-badge-primary {
    background: rgba(74, 158, 255, 0.1);
    border-color: rgba(74, 158, 255, 0.3);
    color: var(--color-primary);
}

.trust-badge-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
    color: var(--color-success);
}

.trust-badge-info {
    background: rgba(6, 182, 212, 0.1);
    border-color: rgba(6, 182, 212, 0.3);
    color: var(--color-info);
}

/* Carousel wrapper and track */
.trust-badges-wrapper {
    overflow: hidden;
    width: 100%;
    position: relative;
    mask-image: linear-gradient(
        to right,
        transparent,
        black 10%,
        black 90%,
        transparent
    );
    -webkit-mask-image: linear-gradient(
        to right,
        transparent,
        black 10%,
        black 90%,
        transparent
    );
}

.trust-badges-track {
    display: flex;
    gap: var(--spacing-sm);
    width: fit-content;
    animation: scroll-badges 30s linear infinite;
}

.trust-badges-track:hover {
    animation-play-state: paused;
}

@keyframes scroll-badges {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .trust-badges-track {
        animation: none;
    }

    .trust-badges-wrapper {
        overflow-x: auto;
        mask-image: none;
        -webkit-mask-image: none;
    }
}

/* ============================================
   Sections
   ============================================ */
section {
    padding: var(--spacing-3xl) 0;
}

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

.section-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: var(--radius-2xl);
    margin: 0 auto var(--spacing-lg);
    box-shadow: var(--shadow-lg);
}

.section-icon svg {
    color: var(--color-white);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.section-description {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ============================================
   How It Works - Steps
   ============================================ */
.how-it-works {
    background: linear-gradient(to bottom, var(--color-bg-secondary), var(--color-bg-primary));
}

.steps {
    max-width: 1050px;
    margin: 0 auto;
}

.step {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.step-reverse {
    grid-template-columns: 1fr 1.3fr;
}

.step-reverse .step-visual {
    order: 2;
}

.step-reverse .step-content {
    order: 1;
}

.step-image-container {
    position: relative;
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    transition: all var(--transition-slow);
}

.step-image-container:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.3);
}

.step-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    color: var(--color-white);
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: var(--shadow-xl);
    z-index: 10;
}

.step-badge-secondary {
    background: #4a9eff;
}

.step-badge-success {
    background: #4a9eff;
}

.step-image-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    min-height: 300px;
}

.step-image-placeholder svg {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.step-image-placeholder p {
    color: var(--color-text-secondary);
    font-weight: 500;
}

.step-content {
    padding: var(--spacing-md);
}

.step-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.step-text {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.step-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-md);
}

.step-progress {
    height: 4px;
    width: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.step-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.step-arrow {
    display: flex;
    justify-content: center;
    margin: var(--spacing-md) 0;
}

.step-arrow svg {
    color: var(--color-primary);
}

/* Video Container */
.step-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    min-height: 300px;
    pointer-events: none; /* Empêche toute interaction */
}

/* Comparison Box */
.comparison-box {
    margin-top: var(--spacing-3xl);
    background: rgba(74, 158, 255, 0.1);
    border: 1px solid rgba(74, 158, 255, 0.3);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

.comparison-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.comparison-item {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

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

.comparison-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
}

.comparison-icon-learny {
    background: #4a9eff;
    color: var(--color-white);
}

.comparison-icon-manual {
    background: linear-gradient(135deg, #9ca3af 0%, #6b7280 100%);
    color: var(--color-white);
}

.comparison-name {
    font-weight: 700;
    font-size: 1.125rem;
}

.comparison-text {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ============================================
   For Who - Persona Cards
   ============================================ */
.for-who {
    background: linear-gradient(to bottom, var(--color-bg-primary), var(--color-bg-secondary));
    position: relative;
    overflow: hidden;
}

.for-who::before {
    content: '';
    position: absolute;
    top: 10%;
    left: 10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.for-who::after {
    content: '';
    position: absolute;
    bottom: 10%;
    right: 10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(74, 158, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

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

.persona-card {
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--spacing-xl);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-slow);
    position: relative;
}

.persona-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    background: rgba(255, 255, 255, 0.5);
}

/* Couleurs individuelles pour chaque persona */
.persona-card:nth-child(1) {
    background: linear-gradient(135deg, rgba(219, 234, 254, 0.6) 0%, rgba(191, 219, 254, 0.4) 100%);
}

.persona-card:nth-child(1):hover {
    background: linear-gradient(135deg, rgba(219, 234, 254, 0.8) 0%, rgba(191, 219, 254, 0.6) 100%);
}

.persona-card:nth-child(2) {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15) 0%, rgba(220, 38, 38, 0.1) 100%);
}

.persona-card:nth-child(2):hover {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.2) 0%, rgba(220, 38, 38, 0.15) 100%);
}

.persona-card:nth-child(3) {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.15) 0%, rgba(219, 39, 119, 0.1) 100%);
}

.persona-card:nth-child(3):hover {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.2) 0%, rgba(219, 39, 119, 0.15) 100%);
}

.persona-card:nth-child(4) {
    background: linear-gradient(135deg, rgba(254, 243, 199, 0.6) 0%, rgba(253, 230, 138, 0.4) 100%);
}

.persona-card:nth-child(4):hover {
    background: linear-gradient(135deg, rgba(254, 243, 199, 0.8) 0%, rgba(253, 230, 138, 0.6) 100%);
}

.persona-card:nth-child(5) {
    background: linear-gradient(135deg, rgba(254, 226, 226, 0.6) 0%, rgba(252, 165, 165, 0.4) 100%);
}

.persona-card:nth-child(5):hover {
    background: linear-gradient(135deg, rgba(254, 226, 226, 0.8) 0%, rgba(252, 165, 165, 0.6) 100%);
}

.persona-card:nth-child(6) {
    background: linear-gradient(135deg, rgba(252, 231, 243, 0.6) 0%, rgba(249, 168, 212, 0.4) 100%);
}

.persona-card:nth-child(6):hover {
    background: linear-gradient(135deg, rgba(252, 231, 243, 0.8) 0%, rgba(249, 168, 212, 0.6) 100%);
}

.persona-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-md);
}

.persona-icon-student {
    background: #4a9eff;
    color: var(--color-white);
}

.persona-icon-teacher {
    background: #4a9eff;
    color: var(--color-white);
}

.persona-icon-professional {
    background: linear-gradient(135deg, #10b981 0%, #047857 100%);
    color: var(--color-white);
}

.persona-icon-researcher {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: var(--color-white);
}

.persona-icon-journalist {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: var(--color-white);
}

.persona-icon-creator {
    background: linear-gradient(135deg, #ec4899 0%, #db2777 100%);
    color: var(--color-white);
}

.persona-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.persona-text {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.persona-badge {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background: var(--gradient-primary);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Badges spécifiques pour chaque persona */
.persona-badge-student {
    background: #4a9eff;
}

.persona-badge-journalist {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.persona-badge-creator {
    background: linear-gradient(135deg, #ec4899 0%, #db2777 100%);
}

/* ============================================
   Features Grid
   ============================================ */
.features {
    background: var(--color-bg-primary);
}

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

.feature-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-slow);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-md);
}

.feature-icon-ai {
    background: #4a9eff;
    color: var(--color-white);
}

.feature-icon-format {
    background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
    color: var(--color-white);
}

.feature-icon-structure {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: var(--color-white);
}

.feature-icon-custom {
    background: linear-gradient(135deg, #ec4899 0%, #db2777 100%);
    color: var(--color-white);
}

.feature-icon-speed {
    background: #4a9eff;
    color: var(--color-white);
}

.feature-icon-quality {
    background: linear-gradient(135deg, #10b981 0%, #047857 100%);
    color: var(--color-white);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.feature-text {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ============================================
   Demo Section
   ============================================ */
.demo {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: var(--color-white);
}

.demo .section-title,
.demo .section-description {
    color: var(--color-white);
}

.demo .section-description {
    color: rgba(255, 255, 255, 0.8);
}

.demo-video {
    max-width: 900px;
    margin: var(--spacing-2xl) auto 0;
}

.demo-video-container {
    position: relative;
    background: linear-gradient(135deg, #334155 0%, #1e293b 100%);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.demo-thumbnail {
    position: relative;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    cursor: pointer;
    transition: all var(--transition-slow);
}

.demo-thumbnail:hover {
    transform: scale(1.02);
}

.demo-play-button {
    position: absolute;
    z-index: 10;
    width: 96px;
    height: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: var(--color-white);
    box-shadow: var(--shadow-2xl);
    transition: all var(--transition-slow);
    animation: pulse 2s infinite;
}

.demo-thumbnail:hover .demo-play-button {
    transform: scale(1.1);
}

.demo-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-2xl);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
}

.demo-overlay-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.demo-overlay-text {
    color: rgba(255, 255, 255, 0.9);
}

/* ============================================
   Pricing
   ============================================ */
.pricing {
    background: linear-gradient(to bottom, var(--color-bg-primary), var(--color-bg-secondary));
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--color-white);
    padding: 24px 20px;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-slow);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.pricing-card-featured {
    border: 2px solid var(--color-primary);
    transform: scale(1.05);
}

.pricing-card-featured:hover {
    transform: translateY(-8px) scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 0.375rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.pricing-header {
    text-align: left;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-bg-tertiary);
    margin-bottom: var(--spacing-sm);
}

.pricing-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 2px;
    height: 30px;
    display: flex;
    align-items: center;
}

.pricing-price {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    min-height: 85px;
}

.price-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 2px;
}

.price-amount {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    line-height: 1;
    display: inline;
}

.price-period {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-left: 8px;
    display: inline;
    align-self: flex-end;
    padding-bottom: 6px;
}

.pricing-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
    font-style: italic;
}

.pricing-features {
    margin-bottom: var(--spacing-sm);
}

.pricing-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 6px 0;
    font-size: 0.85rem;
}

.pricing-feature svg {
    flex-shrink: 0;
    color: var(--color-success);
}

.pricing-note {
    text-align: center;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xl);
    font-size: 0.875rem;
}

.pricing-note-bottom {
    text-align: center;
    color: var(--color-text-muted);
    margin-top: var(--spacing-sm);
    font-size: 0.75rem;
    font-style: italic;
}

.pricing-card .btn {
    border-radius: 10px;
    padding: 8px 20px;
    font-size: 0.95rem;
}

/* ============================================
   FAQ
   ============================================ */
.faq {
    background: var(--color-bg-primary);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item:hover {
    box-shadow: var(--shadow-lg);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    font-size: 1.125rem;
    font-weight: 600;
    text-align: left;
    color: var(--color-text-primary);
    cursor: pointer;
}

.faq-icon {
    flex-shrink: 0;
    color: var(--color-primary);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ============================================
   CTA Final
   ============================================ */
.cta-final {
    background: #4a9eff;
    padding: var(--spacing-3xl) 0;
}

.cta-content {
    text-align: center;
    color: var(--color-white);
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.cta-text {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
}

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

.cta-final .btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.cta-final .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
}

.cta-final .btn-primary {
    background: var(--color-white);
    color: var(--color-primary);
}

.cta-final .btn-primary:hover {
    background: var(--color-bg-secondary);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-text-primary);
    color: var(--color-white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--spacing-sm);
    line-height: 1.7;
}

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

.footer-title {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    color: rgba(255, 255, 255, 0.9);
}

.footer-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-list a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    transition: color var(--transition-base);
}

.footer-list a:hover {
    color: var(--color-white);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.9;
    }
}

[data-animate] {
    opacity: 0;
}

[data-animate].animate {
    animation-duration: 0.8s;
    animation-fill-mode: both;
}

[data-animate="fade-in"].animate {
    animation-name: fadeIn;
}

[data-animate="fade-in-up"].animate {
    animation-name: fadeInUp;
}

[data-animate="scale-in"].animate {
    animation-name: scaleIn;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .step {
        grid-template-columns: 1fr;
    }

    .step-reverse {
        grid-template-columns: 1fr;
    }

    .step-reverse .step-visual {
        order: 1;
    }

    .step-reverse .step-content {
        order: 2;
    }

    .comparison-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 4rem;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-white);
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero {
        padding-top: 6rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .persona-grid {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .pricing-card-featured {
        transform: scale(1);
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    section {
        padding: var(--spacing-2xl) 0;
    }

    /* Video adjustments for mobile */
    .step-video {
        min-height: 200px;
    }
}

@media (max-width: 480px) {
    .trust-badges {
        flex-direction: column;
    }

    .trust-badge {
        width: 100%;
        justify-content: center;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .section-description {
        font-size: 1rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }
}