/* ================================
   DESIGN SYSTEM - SITE VITRINE MODERNE
   Inspiré du style épuré et professionnel
   ================================ */

/* Variables CSS (Design Tokens) */
:root {
    /* Couleurs principales - Style épuré et professionnel */
    --color-background: hsl(0, 0%, 98%);
    --color-foreground: hsl(220, 15%, 20%);
    
    --color-card: hsl(0, 0%, 100%);
    --color-card-foreground: hsl(220, 15%, 20%);
    
    /* Couleur primaire - Bleu professionnel pour conversion */
    --color-primary: hsl(220, 90%, 56%);
    --color-primary-foreground: hsl(0, 0%, 100%);
    --color-primary-hover: hsl(220, 90%, 50%);
    
    /* Couleur secondaire - Gris élégant */
    --color-secondary: hsl(220, 10%, 95%);
    --color-secondary-foreground: hsl(220, 15%, 25%);
    
    /* Couleurs utilitaires */
    --color-muted: hsl(220, 10%, 96%);
    --color-muted-foreground: hsl(220, 10%, 45%);
    
    --color-accent: hsl(45, 93%, 65%);
    --color-accent-foreground: hsl(220, 15%, 20%);
    
    --color-destructive: hsl(0, 75%, 60%);
    --color-destructive-foreground: hsl(0, 0%, 100%);
    
    /* Bordures et inputs */
    --color-border: hsl(220, 15%, 85%);
    --color-input: hsl(220, 15%, 90%);
    --color-ring: hsl(220, 90%, 56%);
    
    /* Design tokens personnalisés */
    --radius: 8px;
    --radius-sm: 4px;
    --radius-lg: 12px;
    --radius-full: 9999px;
    
    /* Shadows élégantes */
    --shadow-sm: 0 1px 3px 0 hsl(220, 15%, 20%, 0.1);
    --shadow-md: 0 4px 12px 0 hsl(220, 15%, 20%, 0.15);
    --shadow-lg: 0 8px 25px 0 hsl(220, 15%, 20%, 0.2);
    
    /* Gradients modernes */
    --gradient-primary: linear-gradient(135deg, var(--color-primary), hsl(220, 90%, 40%));
    --gradient-subtle: linear-gradient(180deg, var(--color-background), var(--color-muted));
    
    /* Spacing système */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Typography */
    --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    --font-size-7xl: 4.5rem;
    
    /* Line heights */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    
    /* Animations fluides */
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease-out;
    
    /* Breakpoints */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
}

/* Mode sombre */
@media (prefers-color-scheme: dark) {
    :root {
        --color-background: hsl(220, 20%, 8%);
        --color-foreground: hsl(220, 10%, 92%);
        
        --color-card: hsl(220, 20%, 10%);
        --color-card-foreground: hsl(220, 10%, 92%);
        
        --color-primary: hsl(220, 90%, 60%);
        --color-primary-hover: hsl(220, 90%, 65%);
        
        --color-secondary: hsl(220, 15%, 15%);
        --color-secondary-foreground: hsl(220, 10%, 85%);
        
        --color-muted: hsl(220, 15%, 12%);
        --color-muted-foreground: hsl(220, 10%, 60%);
        
        --color-accent: hsl(45, 93%, 60%);
        --color-accent-foreground: hsl(220, 20%, 8%);
        
        --color-border: hsl(220, 15%, 20%);
        --color-input: hsl(220, 15%, 18%);
        
        --shadow-sm: 0 1px 3px 0 hsl(0, 0%, 0%, 0.3);
        --shadow-md: 0 4px 12px 0 hsl(0, 0%, 0%, 0.4);
        --shadow-lg: 0 8px 25px 0 hsl(0, 0%, 0%, 0.5);
    }
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--leading-normal);
    color: var(--color-foreground);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Focus visible pour l'accessibilité */
*:focus-visible {
    outline: 2px solid var(--color-ring);
    outline-offset: 2px;
}

/* Animations réduites pour les utilisateurs sensibles */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

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

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* Sections */
.section {
    padding: var(--spacing-4xl) 0;
}

.section-alt {
    background-color: var(--color-muted);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: var(--leading-tight);
    color: var(--color-foreground);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
    .section-title {
        font-size: var(--font-size-5xl);
    }
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-muted-foreground);
    max-width: 42rem;
    margin: 0 auto;
    line-height: var(--leading-relaxed);
}

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

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

/* Skip Link pour l'accessibilité */
.skip-link {
    position: absolute;
    top: -100px;
    left: var(--spacing-md);
    z-index: 1000;
    background-color: var(--color-primary);
    color: var(--color-primary-foreground);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-base);
}

.skip-link:focus {
    top: var(--spacing-md);
}

/* ================================
   HEADER / NAVIGATION
   ================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background-color: hsl(var(--color-background) / 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-base);
}

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

.logo-text {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    transition: var(--transition-fast);
}

.logo-text:hover {
    opacity: 0.8;
}

.nav-desktop {
    display: none;
    align-items: center;
    gap: var(--spacing-xs);
}

@media (min-width: 768px) {
    .nav-desktop {
        display: flex;
    }
}

.nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-foreground);
    text-decoration: none;
    transition: var(--transition-base);
    position: relative;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-primary);
    background-color: hsl(var(--color-secondary) / 0.5);
}

.nav-link.active {
    color: var(--color-primary);
    background-color: hsl(var(--color-primary) / 0.1);
}

.nav-cta {
    display: none;
}

@media (min-width: 768px) {
    .nav-cta {
        display: block;
    }
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius);
    transition: var(--transition-fast);
}

@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none;
    }
}

.mobile-menu-toggle:hover {
    background-color: var(--color-secondary);
}

.hamburger {
    width: 1.25rem;
    height: 2px;
    background-color: var(--color-foreground);
    margin: 2px 0;
    transition: var(--transition-fast);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    animation: slideDown 0.3s ease-out;
}

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

.mobile-nav {
    padding: var(--spacing-lg) var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mobile-nav-link {
    padding: var(--spacing-md);
    border-radius: var(--radius);
    font-weight: 500;
    color: var(--color-foreground);
    text-decoration: none;
    transition: var(--transition-base);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--color-primary);
    background-color: hsl(var(--color-primary) / 0.1);
}

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

/* ================================
   BOUTONS
   ================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    white-space: nowrap;
}

.btn:focus-visible {
    outline: 2px solid var(--color-ring);
    outline-offset: 2px;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-primary-foreground);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: var(--color-secondary-foreground);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: hsl(var(--color-secondary) / 0.8);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-accent {
    background-color: var(--color-accent);
    color: var(--color-accent-foreground);
    font-weight: 600;
}

.btn-accent:hover {
    background-color: hsl(var(--color-accent) / 0.9);
    box-shadow: var(--shadow-lg);
}

.btn-ghost {
    background-color: hsl(var(--color-primary-foreground) / 0.1);
    color: var(--color-primary-foreground);
    border: 1px solid hsl(var(--color-primary-foreground) / 0.3);
}

.btn-ghost:hover {
    background-color: hsl(var(--color-primary-foreground) / 0.2);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn-full {
    width: 100%;
}

.btn-icon {
    font-size: var(--font-size-lg);
    transition: var(--transition-fast);
}

.btn:hover .btn-icon {
    transform: translateX(2px);
}

/* ================================
   HERO SECTION
   ================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    color: white;
}

.hero-background {
    position: absolute;
    inset: 0;
    background-image: url('../img/hero-image.jpg');
    background-size: cover;
    background-position: center;
    filter: brightness(0.3);
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, hsl(var(--color-primary) / 0.2), transparent);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding-top: 4rem;
    padding-bottom: 4rem;
}

.hero-text {
    max-width: 56rem;
    margin: 0 auto;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    line-height: var(--leading-tight);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: var(--font-size-7xl);
    }
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    line-height: var(--leading-relaxed);
    color: hsl(0, 0%, 90%);
    max-width: 32rem;
    margin: 0 auto var(--spacing-xl) auto;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: var(--font-size-2xl);
    }
}

.hero-social-proof {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-2xl);
}

.stars {
    display: flex;
    gap: 2px;
}

.star {
    color: var(--color-accent);
    font-size: var(--font-size-lg);
}

.social-proof-text {
    color: hsl(0, 0%, 85%);
    font-size: var(--font-size-sm);
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
    margin-bottom: var(--spacing-3xl);
}

@media (min-width: 640px) {
    .hero-cta {
        flex-direction: row;
        justify-content: center;
    }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-mouse {
    width: 1.5rem;
    height: 2.5rem;
    border: 2px solid hsl(var(--color-primary-foreground) / 0.3);
    border-radius: var(--radius-full);
    display: flex;
    justify-content: center;
    padding-top: 0.5rem;
}

.scroll-wheel {
    width: 3px;
    height: 0.75rem;
    background-color: hsl(var(--color-primary-foreground) / 0.6);
    border-radius: var(--radius-full);
    animation: scrollWheel 2s infinite;
}

/* ================================
   LOGOS SECTION
   ================================ */
.logos-section {
    padding: var(--spacing-4xl) 0;
    background-color: hsl(var(--color-muted) / 0.3);
}

.logos-title {
    text-align: center;
    color: var(--color-muted-foreground);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-sm);
}

.logos-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    opacity: 0.6;
}

.logo-item {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-muted-foreground);
    transition: var(--transition-base);
}

.logo-item:hover {
    opacity: 0.8;
}

/* ================================
   SERVICES SECTION
   ================================ */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.service-card {
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-2xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

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

.service-icon {
    width: 4rem;
    height: 4rem;
    background-color: hsl(var(--color-primary) / 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg) auto;
    color: var(--color-primary);
}

.service-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-foreground);
}

.service-description {
    color: var(--color-muted-foreground);
    line-height: var(--leading-relaxed);
}

.service-benefit {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-primary);
}

/* ================================
   PROJECTS SECTION
   ================================ */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.project-card {
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

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

.project-image {
    aspect-ratio: 16 / 9;
    background-color: var(--color-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-muted-foreground);
    font-size: var(--font-size-sm);
    position: relative;
    overflow: hidden;
}

.image-placeholder {
    transition: var(--transition-base);
}

.project-card:hover .image-placeholder {
    opacity: 0.7;
}

.project-content {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

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

.project-category {
    background-color: hsl(var(--color-primary) / 0.1);
    color: var(--color-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.project-result {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--color-accent);
}

.project-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-foreground);
}

.project-description {
    color: var(--color-muted-foreground);
    line-height: var(--leading-relaxed);
}

.project-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

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

.section-cta {
    text-align: center;
    margin-top: var(--spacing-3xl);
}

/* ================================
   TESTIMONIALS SECTION
   ================================ */
.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.testimonial-card {
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

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

.testimonial-stars {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    color: var(--color-accent);
}

.testimonial-quote {
    color: var(--color-muted-foreground);
    line-height: var(--leading-relaxed);
    font-style: italic;
    margin-bottom: var(--spacing-lg);
}

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

.author-avatar {
    width: 3rem;
    height: 3rem;
    background-color: var(--color-muted);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-muted-foreground);
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.author-name {
    font-weight: 600;
    color: var(--color-foreground);
}

.author-role {
    font-size: var(--font-size-sm);
    color: var(--color-muted-foreground);
}

/* ================================
   PROCESS SECTION
   ================================ */
.process-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .process-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.process-step {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.step-number {
    width: 4rem;
    height: 4rem;
    background-color: var(--color-primary);
    color: var(--color-primary-foreground);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-xl);
}

.step-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-foreground);
}

.step-description {
    color: var(--color-muted-foreground);
    line-height: var(--leading-relaxed);
}

/* ================================
   BENEFITS SECTION
   ================================ */
.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .benefits-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.benefit-item {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.benefit-icon {
    width: 3rem;
    height: 3rem;
    background-color: hsl(var(--color-primary) / 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.benefit-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-foreground);
}

.benefit-description {
    color: var(--color-muted-foreground);
    font-size: var(--font-size-sm);
    line-height: var(--leading-relaxed);
}

/* ================================
   CONTACT FORM
   ================================ */
.contact-form-container {
    max-width: 56rem;
    margin: 0 auto;
}

.contact-form-card {
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
}

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

.contact-form-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-foreground);
    margin-bottom: var(--spacing-sm);
}

.contact-form-subtitle {
    color: var(--color-muted-foreground);
    line-height: var(--leading-relaxed);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.form-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-foreground);
}

.optional {
    color: var(--color-muted-foreground);
    font-weight: 400;
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-input);
    border-radius: var(--radius);
    background-color: var(--color-background);
    color: var(--color-foreground);
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
}

.form-input::placeholder {
    color: var(--color-muted-foreground);
}

.form-input:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 3px hsl(var(--color-primary) / 0.2);
}

.form-input:invalid {
    border-color: var(--color-destructive);
}

.form-input:invalid:focus {
    box-shadow: 0 0 0 3px hsl(var(--color-destructive) / 0.2);
}

.form-error {
    display: none;
    font-size: var(--font-size-sm);
    color: var(--color-destructive);
    align-items: center;
    gap: var(--spacing-xs);
}

.form-error.active {
    display: flex;
}

/* Checkbox styling */
.checkbox-group {
    margin: var(--spacing-lg) 0;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    line-height: var(--leading-relaxed);
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkmark {
    width: 1rem;
    height: 1rem;
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    flex-shrink: 0;
    margin-top: 2px;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    color: var(--color-primary-foreground);
    font-size: var(--font-size-xs);
    font-weight: 700;
}

.checkbox-text {
    color: var(--color-muted-foreground);
}

.privacy-link {
    color: var(--color-primary);
    text-decoration: underline;
    transition: var(--transition-fast);
}

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

/* Loading state */
.loading-spinner svg {
    animation: spin 1s linear infinite;
}

/* Success message */
.success-message {
    text-align: center;
    padding: var(--spacing-3xl);
}

.success-icon {
    width: 4rem;
    height: 4rem;
    background-color: hsl(120, 60%, 90%);
    color: hsl(120, 60%, 40%);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg) auto;
}

.success-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-foreground);
    margin-bottom: var(--spacing-sm);
}

.success-text {
    color: var(--color-muted-foreground);
    margin-bottom: var(--spacing-xl);
}

/* ================================
   CTA URGENCY SECTION
   ================================ */
.cta-urgency {
    padding: var(--spacing-4xl) 0;
    background: var(--gradient-primary);
    color: var(--color-primary-foreground);
}

.cta-content {
    text-align: center;
    max-width: 48rem;
    margin: 0 auto;
}

.cta-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
    .cta-title {
        font-size: var(--font-size-4xl);
    }
}

.cta-subtitle {
    font-size: var(--font-size-xl);
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

@media (min-width: 640px) {
    .cta-buttons {
        flex-direction: row;
        justify-content: center;
    }
}

/* ================================
   FOOTER
   ================================ */
.footer {
    background-color: var(--color-card);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-3xl) 0 var(--spacing-xl) 0;
}

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

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}

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

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-foreground);
    margin-bottom: var(--spacing-sm);
}

.footer-description {
    color: var(--color-muted-foreground);
    font-size: var(--font-size-sm);
    line-height: var(--leading-relaxed);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background-color: var(--color-secondary);
    border-radius: var(--radius-full);
    color: var(--color-muted-foreground);
    transition: var(--transition-fast);
}

.social-links a:hover {
    color: var(--color-primary);
    background-color: hsl(var(--color-primary) / 0.1);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--color-muted-foreground);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-links li {
    color: var(--color-muted-foreground);
    font-size: var(--font-size-sm);
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-muted-foreground);
    font-size: var(--font-size-sm);
}

.contact-item a {
    color: var(--color-muted-foreground);
    text-decoration: none;
    transition: var(--transition-fast);
}

.contact-item a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
}

.footer-bottom-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-copyright {
    color: var(--color-muted-foreground);
    font-size: var(--font-size-sm);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-legal a {
    color: var(--color-muted-foreground);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.footer-legal a:hover {
    color: var(--color-primary);
}

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

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

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

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40%, 43% {
        transform: translateX(-50%) translateY(-15px);
    }
    70% {
        transform: translateX(-50%) translateY(-7px);
    }
    90% {
        transform: translateX(-50%) translateY(-3px);
    }
}

@keyframes scrollWheel {
    0% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(0.75rem);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Animation on scroll */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.in-view {
    opacity: 1;
    transform: translateY(0);
}