/* marche-connecte.css - Thème principal Marché Connecté */

:root {
    /* Palette Marché Connecté */
    --primary-blue: #2563EB;
    --primary-blue-light: #3B82F6;
    --primary-blue-dark: #1D4ED8;
    
    --secondary-green: #10B981;
    --secondary-green-light: #34D399;
    
    --accent-purple: #8B5CF6;
    --accent-orange: #F59E0B;
    
    /* Neutres modernes */
    --neutral-900: #111827;
    --neutral-800: #1F2937;
    --neutral-700: #374151;
    --neutral-600: #4B5563;
    --neutral-500: #6B7280;
    --neutral-400: #9CA3AF;
    --neutral-300: #D1D5DB;
    --neutral-200: #E5E7EB;
    --neutral-100: #F3F4F6;
    --neutral-50: #F9FAFB;
    
    /* Typographie */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Espacements */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    
    /* Bordures */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Ombres */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.5;
    color: var(--neutral-700);
    background-color: var(--neutral-50);
    overflow-x: hidden;
}

/* Header */
.marche-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--neutral-200);
    z-index: 1000;
    padding: var(--space-sm) 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
}

.logo-icon {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--neutral-900);
}

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

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

.nav-link {
    color: var(--neutral-700);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary-blue);
}

/* Boutons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid transparent;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-light));
    color: white;
    border: none;
}

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

.btn-outline {
    background: transparent;
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-outline:hover {
    background: var(--primary-blue);
    color: white;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-block {
    width: 100%;
}

.btn-icon i {
    font-size: 1.2em;
}

/* Hero Section */
.hero-marche {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, 
        var(--neutral-50) 0%, 
        rgba(37, 99, 235, 0.05) 100%);
}

.hero-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

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

.badge-marche {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    background: var(--secondary-green);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
}

.badge-marche i {
    animation: pulse 2s infinite;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    color: var(--neutral-900);
    margin-bottom: var(--space-md);
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--neutral-600);
    margin-bottom: var(--space-xl);
}

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

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

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--neutral-600);
    font-weight: 500;
}

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

/* Hero Visual */
.hero-visual {
    position: relative;
}

.visual-container {
    position: relative;
    max-width: 500px;
    margin-left: auto;
}

.dashboard-preview {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    box-shadow: var(--shadow-2xl);
    border: 1px solid var(--neutral-200);
}

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

.dashboard-dots {
    display: flex;
    gap: 0.5rem;
}

.dashboard-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--neutral-300);
}

.dashboard-dots span:first-child {
    background: var(--secondary-green);
}

.dashboard-title {
    font-size: 0.875rem;
    color: var(--neutral-600);
    font-weight: 500;
}

.dashboard-content {
    display: grid;
    gap: var(--space-sm);
}

.metric-card {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: var(--neutral-100);
    border-radius: var(--radius-md);
    border: 1px solid var(--neutral-200);
}

.metric-card i {
    color: var(--primary-blue);
    font-size: 1.25rem;
}

.metric-card span {
    font-weight: 500;
    color: var(--neutral-700);
}

.floating-elements {
    position: absolute;
    bottom: -2rem;
    right: -2rem;
}

.floating-card {
    position: absolute;
    background: white;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    border: 1px solid var(--neutral-200);
}

.card-1 {
    top: 0;
    right: 0;
    animation: float 3s ease-in-out infinite;
}

.card-2 {
    bottom: 0;
    left: 0;
    animation: float 3s ease-in-out infinite 1.5s;
}

/* Sections communes */
section {
    padding: var(--space-2xl) 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--space-2xl);
    padding: 0 var(--space-md);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--neutral-900);
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--neutral-600);
    line-height: 1.6;
}

/* ==========================================================================
   RESPONSIVE DESIGN - MARCHÉ CONNECTÉ
   ========================================================================== */

/* Breakpoints:
   - Mobile: < 640px
   - Tablet: 640px - 1024px
   - Desktop: > 1024px
*/

/* ==========================================================================
   BASE RESPONSIVE STYLES
   ========================================================================== */

html {
    font-size: 14px; /* Base pour mobile */
}

@media (min-width: 640px) {
    html {
        font-size: 15px;
    }
}

@media (min-width: 1024px) {
    html {
        font-size: 16px;
    }
}

body {
    overflow-x: hidden;
    min-width: 320px;
}

/* ==========================================================================
   HEADER RESPONSIVE
   ========================================================================== */

.marche-header {
    padding: 0.75rem 0;
}

.nav-container {
    padding: 0 1rem;
}

/* Menu hamburger pour mobile */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--neutral-700);
    cursor: pointer;
    padding: 0.5rem;
}

/* Responsive navigation */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-actions {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--neutral-200);
        transform: translateY(-100%);
        opacity: 0;
        transition: all 0.3s ease;
        z-index: 999;
    }
    
    .nav-actions.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav-actions .nav-link,
    .nav-actions .btn {
        width: 100%;
        justify-content: center;
        margin: 0.5rem 0;
    }
    
    .logo-text {
        font-size: 1.25rem;
    }
}

@media (max-width: 640px) {
    .marche-header {
        padding: 0.5rem 0;
    }
    
    .logo-container {
        gap: 0.5rem;
    }
    
    .logo-icon {
        font-size: 1.5rem;
    }
}

/* ==========================================================================
   HERO SECTION RESPONSIVE
   ========================================================================== */

.hero-marche {
    padding: 6rem 0 3rem;
}

.hero-grid {
    padding: 0 1rem;
    gap: 2rem;
}

/* Stack sur mobile/tablette */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .visual-container {
        margin: 0 auto;
        max-width: 90%;
    }
}

@media (max-width: 768px) {
    .hero-marche {
        padding: 5rem 0 2rem;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .stat-value {
        font-size: 1.75rem;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .badge-marche {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
    }
    
    .dashboard-preview {
        padding: 1rem;
    }
    
    .floating-elements {
        display: none; /* Cache les éléments flottants sur très petits écrans */
    }
}

/* ==========================================================================
   FEATURES SECTION RESPONSIVE
   ========================================================================== */

.features-grid {
    padding: 0 1rem;
    gap: 1.5rem;
}

/* Responsive grid */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .feature-card.highlight {
        transform: scale(1); /* Supprime le zoom sur mobile */
    }
}

@media (max-width: 480px) {
    .feature-card {
        padding: 1.25rem;
    }
    
    .feature-title {
        font-size: 1.25rem;
    }
    
    .icon-wrapper {
        width: 56px;
        height: 56px;
        font-size: 1.25rem;
    }
}

/* ==========================================================================
   PROCESS SECTION RESPONSIVE
   ========================================================================== */

.process-timeline {
    padding: 0 1rem;
}

@media (max-width: 768px) {
    .process-step {
        grid-template-columns: auto 1fr;
        gap: 1rem;
    }
    
    .step-number {
        font-size: 2rem;
        grid-row: 1;
        grid-column: 1;
    }
    
    .step-content {
        grid-row: 1;
        grid-column: 2;
        text-align: left;
    }
    
    .step-icon {
        grid-row: 2;
        grid-column: 1 / span 2;
        margin: 1rem auto 0;
        width: 56px;
        height: 56px;
    }
    
    .step-title {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .process-step {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1rem;
        padding: 1.25rem;
    }
    
    .step-number {
        grid-row: 1;
        grid-column: 1;
        margin: 0 auto;
    }
    
    .step-content {
        grid-row: 2;
        grid-column: 1;
        text-align: center;
    }
    
    .step-icon {
        grid-row: 3;
        grid-column: 1;
    }
}

/* ==========================================================================
   PRICING SECTION RESPONSIVE
   ========================================================================== */

.pricing-card {
    margin: 0 1rem;
    padding: 1.5rem;
}

@media (max-width: 768px) {
    .pricing-card {
        max-width: 90%;
        padding: 1.5rem;
    }
    
    .price-amount {
        font-size: 3rem;
    }
}

@media (max-width: 480px) {
    .pricing-card {
        padding: 1.25rem;
    }
    
    .price-amount {
        font-size: 2.5rem;
    }
    
    .pricing-features .feature-item {
        padding: 0.75rem 0;
        font-size: 0.95rem;
    }
}

/* ==========================================================================
   TESTIMONIALS RESPONSIVE
   ========================================================================== */

.testimonials-grid {
    padding: 0 1rem;
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
    
    .testimonial-card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .testimonial-card {
        padding: 1.25rem;
    }
    
    .testimonial-text {
        font-size: 1rem;
        padding-left: 1.5rem;
    }
    
    .author-avatar {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }
}

/* ==========================================================================
   FAQ RESPONSIVE
   ========================================================================== */

.faq-grid {
    padding: 0 1rem;
}

@media (max-width: 768px) {
    .faq-question {
        padding: 1.25rem;
    }
    
    .faq-question h3 {
        font-size: 1rem;
        padding-right: 2rem;
    }
}

/* ==========================================================================
   FINAL CTA RESPONSIVE
   ========================================================================== */

.cta-container {
    padding: 0 1rem;
}

@media (max-width: 768px) {
    .cta-title {
        font-size: 2rem;
    }
    
    .cta-subtitle {
        font-size: 1.1rem;
    }
    
    .cta-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .cta-title {
        font-size: 1.75rem;
    }
    
    .cta-subtitle {
        font-size: 1rem;
    }
}

/* ==========================================================================
   FOOTER RESPONSIVE
   ========================================================================== */

.footer-content {
    padding: 2rem 1rem;
    gap: 2rem;
}

@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .footer-links {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 768px) {
    .footer-links {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        padding: 1.25rem 1rem;
    }
}

@media (max-width: 480px) {
    .footer-content {
        gap: 2rem;
    }
    
    .footer-tagline {
        font-size: 0.9rem;
    }
}

/* ==========================================================================
   SECTION GÉNÉRAL RESPONSIVE
   ========================================================================== */

section {
    padding: 3rem 0;
}

@media (max-width: 768px) {
    section {
        padding: 2.5rem 0;
    }
    
    .section-header {
        margin-bottom: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
        padding: 0 1rem;
    }
    
    .section-subtitle {
        font-size: 1.1rem;
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    section {
        padding: 2rem 0;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
}

/* ==========================================================================
   BOUTONS RESPONSIVE
   ========================================================================== */

.btn {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    white-space: nowrap;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.95rem;
    }
    
    .btn-large {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .btn {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    .btn-large {
        padding: 0.75rem 1.25rem;
    }
}

/* ==========================================================================
   TYPOGRAPHIE RESPONSIVE
   ========================================================================== */

h1, .h1 {
    font-size: 2.5rem;
}

h2, .h2 {
    font-size: 2rem;
}

h3, .h3 {
    font-size: 1.5rem;
}

@media (min-width: 768px) {
    h1, .h1 {
        font-size: 3rem;
    }
    
    h2, .h2 {
        font-size: 2.5rem;
    }
}

@media (min-width: 1024px) {
    h1, .h1 {
        font-size: 3.5rem;
    }
    
    h2, .h2 {
        font-size: 2.75rem;
    }
}

/* ==========================================================================
   UTILITAIRES RESPONSIVE
   ========================================================================== */

/* Cache/Show classes */
.hide-mobile {
    display: none;
}

.show-mobile {
    display: block;
}

@media (min-width: 768px) {
    .hide-mobile {
        display: block;
    }
    
    .show-mobile {
        display: none;
    }
}

/* Containers responsives */
.container {
    width: 100%;
    padding-right: 1rem;
    padding-left: 1rem;
    margin-right: auto;
    margin-left: auto;
}

@media (min-width: 640px) {
    .container {
        max-width: 640px;
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 768px;
    }
}

@media (min-width: 1024px) {
    .container {
        max-width: 1024px;
    }
}

@media (min-width: 1280px) {
    .container {
        max-width: 1280px;
    }
}

/* Grid responsif */
.grid-responsive {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 1.5rem;
}

@media (min-width: 640px) {
    .grid-responsive {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid-responsive {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1280px) {
    .grid-responsive {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ==========================================================================
   IMAGES RESPONSIVE
   ========================================================================== */

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

.responsive-img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

/* Background images responsives */
.responsive-bg {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

@media (max-width: 768px) {
    .responsive-bg {
        background-attachment: scroll; /* Désactive le parallax sur mobile */
    }
}

/* ==========================================================================
   FORMULAIRES RESPONSIVE
   ========================================================================== */

input, textarea, select {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.form-group {
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .form-row {
        display: flex;
        gap: 1rem;
    }
    
    .form-row .form-group {
        flex: 1;
    }
}

/* ==========================================================================
   ANIMATIONS RESPONSIVE
   ========================================================================== */

/* Réduit les animations sur mobile pour les performances */
@media (max-width: 768px) {
    .animate-on-scroll {
        animation-duration: 0.6s !important;
    }
    
    .floating-card {
        animation: none; /* Désactive les animations flottantes sur mobile */
    }
    
    /* Réduit les transitions pour économiser la batterie */
    * {
        transition-duration: 0.2s !important;
    }
}

/* ==========================================================================
   TOUCH/TAP TARGETS POUR MOBILE
   ========================================================================== */

@media (max-width: 768px) {
    /* Taille minimale pour les éléments cliquables (WCAG) */
    button, 
    .btn, 
    a.btn,
    input[type="submit"],
    input[type="button"] {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Espacement pour éviter les touches accidentelles */
    .touch-spacing {
        margin: 0.5rem 0;
        padding: 0.75rem 0;
    }
}

/* ==========================================================================
   ORIENTATION PAYSAGE
   ========================================================================== */

@media (max-width: 768px) and (orientation: landscape) {
    .hero-marche {
        padding: 4rem 0 2rem;
        min-height: auto;
    }
    
    .hero-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    
    .hero-content {
        text-align: left;
    }
    
    .hero-stats {
        justify-content: flex-start;
    }
    
    .hero-cta {
        flex-direction: row;
        justify-content: flex-start;
    }
}

/* ==========================================================================
   HAUTE CONTRASTE POUR ACCESSIBILITÉ
   ========================================================================== */

@media (prefers-contrast: high) {
    :root {
        --primary-blue: #0033CC;
        --neutral-900: #000000;
        --neutral-50: #FFFFFF;
    }
    
    .btn-primary {
        border: 2px solid #000000;
    }
}

/* ==========================================================================
   RÉDUCTION DES MOUVEMENTS
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .floating-card,
    .logo-icon,
    .badge-marche i {
        animation: none !important;
    }
}

/* ==========================================================================
   MODE SOMBRE
   ========================================================================== */

@media (prefers-color-scheme: dark) {
    :root {
        --neutral-50: #111827;
        --neutral-100: #1F2937;
        --neutral-900: #F9FAFB;
        --neutral-800: #F3F4F6;
        --neutral-700: #E5E7EB;
    }
    
    body {
        background-color: var(--neutral-50);
        color: var(--neutral-700);
    }
    
    .feature-card,
    .testimonial-card,
    .pricing-card {
        background-color: var(--neutral-100);
        border-color: var(--neutral-800);
    }
}