/* ============================================================================
   CIVIS-CONSILIUM - Site Vitrine Association
   Design System Européen
   ============================================================================ */

/* Variables CSS */
:root {
    /* Couleurs Europe */
    --color-eu-blue: #003399;
    --color-eu-yellow: #FFCC00;
    --color-primary: #003399;
    --color-secondary: #0066CC;
    --color-accent: #FFCC00;
    
    /* Grays */
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', var(--font-sans);
    
    /* 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;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::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-gray-800);
    background: white;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-gray-900);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }

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

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

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

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================================================
   NAVIGATION
   ============================================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    color: var(--color-primary);
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.05);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-text strong {
    font-size: 1.25rem;
    line-height: 1.2;
}

.logo-text small {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--color-gray-600);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

/* Language Selector */
.language-selector {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px;
    background: var(--color-gray-100);
    border-radius: var(--radius-lg);
    margin-left: auto;
    margin-right: var(--spacing-md);
}

.lang-option {
    padding: 6px 12px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-600);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-option:hover {
    color: var(--color-primary);
    background: white;
}

.lang-option.active {
    color: white;
    background: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 500;
    color: var(--color-gray-700);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary);
    background: var(--color-gray-100);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    width: 32px;
    height: 32px;
    padding: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color-gray-700);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ============================================================================
   HERO SECTION
   ============================================================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
    background: linear-gradient(135deg, #f0f4ff 0%, #e6f0ff 50%, #fff 100%);
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--color-eu-blue);
    top: -200px;
    left: -200px;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--color-eu-yellow);
    bottom: -100px;
    right: -100px;
    animation-delay: -5s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: var(--color-secondary);
    top: 50%;
    right: 10%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -50px) scale(1.1); }
    66% { transform: translate(-20px, 30px) scale(0.9); }
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-2xl) 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: white;
    border: 1px solid var(--color-gray-200);
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.badge-flag {
    font-size: 1.25rem;
}

.hero-title {
    margin-bottom: var(--spacing-md);
    font-weight: 800;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-gray-200);
}

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

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-display);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-top: var(--spacing-xs);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-gray-400);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    animation: bounce 2s infinite;
}

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

/* ============================================================================
   BUTTONS
   ============================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

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

.btn-secondary {
    background: white;
    color: var(--color-primary);
    border-color: var(--color-gray-300);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    background: var(--color-gray-50);
}

.btn-full {
    width: 100%;
}

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

.section-dark {
    background: var(--color-gray-900);
    color: white;
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
    color: white;
}

.section-dark .section-label {
    color: var(--color-accent);
}

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

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    line-height: 1.8;
}

.section-dark .section-description {
    color: var(--color-gray-300);
}

/* ============================================================================
   MISSION CARDS
   ============================================================================ */
.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.mission-card {
    padding: var(--spacing-xl);
    background: white;
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.mission-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.mission-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-lg);
    color: white;
    margin-bottom: var(--spacing-md);
}

.mission-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-900);
}

.mission-card p {
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ============================================================================
   PROJECT SHOWCASE
   ============================================================================ */
.project-showcase {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.project-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
}

.project-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 16/10;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-accent);
    color: var(--color-gray-900);
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 999px;
}

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

.project-content h3 {
    font-size: 2rem;
    color: white;
}

.project-tagline {
    font-size: 1.125rem;
    color: var(--color-accent);
    font-weight: 500;
}

.project-description {
    color: var(--color-gray-300);
    line-height: 1.8;
}

.project-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.feature-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: white;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.tech-badge {
    padding: 4px 12px;
    background: var(--color-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-md);
}

.project-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

/* ============================================================================
   ROADMAP TIMELINE
   ============================================================================ */
.roadmap-section {
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
}

.roadmap-section h4 {
    font-size: 1.5rem;
    color: white;
    margin-bottom: var(--spacing-sm);
}

.roadmap-section > p {
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-xl);
}

.timeline {
    position: relative;
    padding-left: var(--spacing-xl);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: rgba(255, 255, 255, 0.2);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--spacing-xl);
}

.timeline-dot {
    position: absolute;
    left: -28px;
    top: 0;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-gray-600);
    border: 3px solid var(--color-gray-900);
}

.timeline-item.completed .timeline-dot {
    background: #10B981;
}

.timeline-item.active .timeline-dot {
    background: var(--color-accent);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 204, 0, 0.7); }
    50% { box-shadow: 0 0 0 10px rgba(255, 204, 0, 0); }
}

.timeline-content strong {
    display: block;
    color: white;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.timeline-content p {
    color: var(--color-gray-400);
}

/* ============================================================================
   VALUES GRID
   ============================================================================ */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.value-card {
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-gray-50) 0%, white 100%);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

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

.value-number {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-primary);
    color: white;
    font-weight: 700;
    font-size: 0.875rem;
    border-radius: 999px;
    margin-bottom: var(--spacing-md);
}

.value-card h3 {
    margin-bottom: var(--spacing-sm);
}

.value-card p {
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ============================================================================
   TECH STACK
   ============================================================================ */
.tech-stack {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.tech-category h4 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tech-item {
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: var(--radius-lg);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.tech-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* ============================================================================
   CONTACT SECTION
   ============================================================================ */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-info h2 {
    margin: var(--spacing-md) 0;
}

.contact-info p {
    color: var(--color-gray-600);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.contact-method {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
}

.contact-method svg {
    flex-shrink: 0;
    color: var(--color-primary);
}

.contact-method strong {
    display: block;
    margin-bottom: 4px;
    color: var(--color-gray-900);
}

.contact-method a {
    color: var(--color-primary);
    font-weight: 500;
}

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

.social-link {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

/* Contact Form */
.contact-form-wrapper {
    background: white;
    padding: var(--spacing-xl);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

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

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

.form-group label {
    font-weight: 600;
    color: var(--color-gray-700);
    font-size: 0.875rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 51, 153, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ============================================================================
   FOOTER
   ============================================================================ */
.footer {
    background: var(--color-gray-900);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-section h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

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

.footer-logo strong {
    font-size: 1.25rem;
}

.footer-section p {
    color: var(--color-gray-400);
    font-size: 0.875rem;
    line-height: 1.7;
}

.footer-rna {
    font-size: 0.75rem !important;
    margin-top: var(--spacing-sm);
}

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

.footer-links a {
    color: var(--color-gray-400);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    color: var(--color-gray-500);
    font-size: 0.875rem;
}

.footer-bottom p {
    margin: var(--spacing-xs) 0;
}

.footer-bottom a {
    color: var(--color-gray-400);
}

.footer-bottom a:hover {
    color: white;
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */
@media (max-width: 1024px) {
    .project-main {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper,
    .contact-wrapper-simple {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 4rem;
    }
    
    /* Logo mobile - réduire taille */
    .logo {
        font-size: 0.9rem;
    }
    
    .logo img,
    .logo svg {
        width: 32px;
        height: 32px;
    }
    
    .logo-text small {
        display: none;
    }
    
    /* Sélecteur langue mobile - plus compact */
    .language-selector {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        margin: 0;
        padding: var(--spacing-sm);
        background: white;
        border-bottom: 1px solid var(--color-gray-200);
        border-radius: 0;
        justify-content: center;
        box-shadow: var(--shadow-sm);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition-base);
        z-index: 999;
    }
    
    .language-selector.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .lang-option {
        padding: 8px 14px;
        font-size: 0.875rem;
    }
    
    /* Menu mobile */
    .nav-menu {
        position: fixed;
        top: 130px; /* Décalé pour laisser place au sélecteur langue */
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        background: white;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--color-gray-200);
        box-shadow: var(--shadow-lg);
        transform: translateY(-150%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition-base);
        max-height: calc(100vh - 130px);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-link {
        display: flex;
        width: 100%;
        padding: var(--spacing-md);
        justify-content: flex-start;
        font-size: 1.125rem;
        border-radius: var(--radius-md);
    }
    
    .mobile-toggle {
        display: flex;
        margin-left: var(--spacing-sm);
    }
    
    /* Hamburger à droite, langue fixe en haut du menu */
    .nav-wrapper {
        position: relative;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .mission-grid,
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .project-links {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-badge {
        font-size: 0.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section {
        padding: var(--spacing-2xl) 0;
    }
}

/* ============================================================================
   UTILITIES
   ============================================================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }