/* ============================================
   ECOWITSCH - Feuille de styles principale
   Charte graphique : Bleu profond, Vert émeraude, Rouge subtil
   Style : Minimaliste, moderne, éléments arrondis
   ============================================ */

/* === VARIABLES CSS === */
:root {
    /* Couleurs principales */
    --bleu-profond: #1a365d;
    --bleu-clair: #2c5282;
    --vert-emeraude: #059669;
    --vert-clair: #10b981;
    --vert-pale: #d1fae5;
    --rouge-subtil: #dc2626;
    --rouge-clair: #f87171;
    
    /* Couleurs neutres */
    --blanc: #ffffff;
    --gris-clair: #f8fafc;
    --gris: #e2e8f0;
    --gris-moyen: #94a3b8;
    --gris-fonce: #475569;
    --noir: #1e293b;
    
    /* Typographie */
    --font-principal: 'Poppins', sans-serif;
    --font-secondaire: 'Inter', sans-serif;
    
    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;
    
    /* Bordures arrondies */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 50px;
    
    /* Ombres */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* === MODE SOMBRE === */
[data-theme="dark"] {
    --blanc: #0f172a;
    --gris-clair: #1e293b;
    --gris: #334155;
    --gris-moyen: #64748b;
    --gris-fonce: #cbd5e1;
    --noir: #f1f5f9;
}

/* === RESET & BASE === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-secondaire);
    background-color: var(--blanc);
    color: var(--noir);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-principal);
    font-weight: 600;
    line-height: 1.3;
    color: var(--bleu-profond);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--gris-fonce);
}

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

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

ul {
    list-style: none;
}

/* === CONTENEUR === */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xxl) 0;
}

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

.section-title h2 {
    margin-bottom: var(--spacing-sm);
}

.section-title p {
    max-width: 600px;
    margin: 0 auto;
    color: var(--gris-moyen);
}

/* === HEADER / NAVIGATION === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--blanc);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

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

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-right: 80px;
}

.nav-logo img {
    height: 50px;
    width: auto;
}

.nav-logo span {
    font-family: var(--font-principal);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--vert-emeraude);
}

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

.nav-link {
    font-weight: 500;
    color: var(--gris-fonce);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--vert-emeraude);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--vert-emeraude);
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

/* Dropdown menu */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--blanc);
    min-width: 220px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    padding: var(--spacing-sm);
}

.nav-dropdown:hover .nav-dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown-content a {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    color: var(--gris-fonce);
}

.nav-dropdown-content a:hover {
    background: var(--vert-pale);
    color: var(--vert-emeraude);
}

/* Actions navigation */
.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.lang-switch {
    display: flex;
    background: var(--gris);
    border-radius: var(--radius-full);
    padding: 3px;
}

.lang-switch button {
    border: none;
    background: transparent;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.lang-switch button.active {
    background: var(--blanc);
    color: var(--vert-emeraude);
    box-shadow: var(--shadow-sm);
}

.theme-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.theme-toggle:hover {
    background: var(--gris);
}

/* Menu mobile */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--noir);
    border-radius: 2px;
    transition: var(--transition);
}

/* === BOUTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 12px 28px;
    font-family: var(--font-principal);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--vert-emeraude);
    color: var(--blanc);
    border-color: var(--vert-emeraude);
}

.btn-primary:hover {
    background: var(--vert-clair);
    border-color: var(--vert-clair);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--vert-emeraude);
    border-color: var(--vert-emeraude);
}

.btn-secondary:hover {
    background: var(--vert-emeraude);
    color: var(--blanc);
}

.btn-outline-white {
    background: transparent;
    color: var(--blanc);
    border-color: var(--blanc);
}

.btn-outline-white:hover {
    background: var(--blanc);
    color: var(--vert-emeraude);
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.125rem;
}

/* === HERO SECTION === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bleu-profond) 0%, var(--bleu-clair) 50%, var(--vert-emeraude) 100%);
    position: relative;
    overflow: hidden;
    padding-top: 160px;
    padding-bottom: 60px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/></svg>');
    background-size: 100px;
    animation: float 20s linear infinite;
}

@keyframes float {
    0% { transform: translateY(0) rotate(0deg); }
    100% { transform: translateY(-50px) rotate(360deg); }
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-text h1 {
    color: var(--blanc);
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
}

.hero-text h1 span {
    color: var(--vert-clair);
}

.hero-text p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-card h3 {
    color: var(--vert-clair);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xs);
}

.stat-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    margin: 0;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image {
    max-width: 500px;
    animation: bounce 3s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* === POLES / CARDS SECTION === */
.poles-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.pole-card {
    background: var(--blanc);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 2px solid transparent;
}

.pole-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--vert-emeraude);
}

.pole-icon {
    width: 80px;
    height: 80px;
    background: var(--vert-pale);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: 2.5rem;
}

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

.pole-card p {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}

.pole-card .btn {
    width: 100%;
}

/* === ABOUT SECTION === */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-content h2 {
    margin-bottom: var(--spacing-md);
}

.about-content p {
    margin-bottom: var(--spacing-md);
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--gris-clair);
    border-radius: var(--radius-sm);
}

.feature-item i {
    color: var(--vert-emeraude);
    font-size: 1.25rem;
}

/* === IMPACT SECTION === */
.impact-section {
    background: linear-gradient(135deg, var(--vert-emeraude) 0%, var(--bleu-profond) 100%);
    color: var(--blanc);
}

.impact-section .section-title h2,
.impact-section .section-title p {
    color: var(--blanc);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.impact-card {
    text-align: center;
    padding: var(--spacing-lg);
}

.impact-card .icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.impact-card .number {
    font-size: 3rem;
    font-weight: 700;
    font-family: var(--font-principal);
    margin-bottom: var(--spacing-xs);
}

.impact-card .label {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* === PARTNERS SECTION === */
.partners-slider {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    padding: var(--spacing-lg) 0;
}

.partner-logo {
    height: 60px;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: var(--transition);
}

.partner-logo:hover {
    filter: grayscale(0);
    opacity: 1;
}

/* === NEWS SECTION === */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.news-card {
    background: var(--blanc);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.news-card:hover .news-image img {
    transform: scale(1.1);
}

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

.news-meta {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--gris-moyen);
}

.news-tag {
    background: var(--vert-pale);
    color: var(--vert-emeraude);
    padding: 2px 10px;
    border-radius: var(--radius-full);
    font-weight: 500;
}

.news-content h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.news-content h3 a:hover {
    color: var(--vert-emeraude);
}

/* === CTA SECTION === */
.cta-section {
    background: var(--bleu-profond);
    color: var(--blanc);
    text-align: center;
    padding: var(--spacing-xxl) 0;
}

.cta-section h2 {
    color: var(--blanc);
    margin-bottom: var(--spacing-sm);
}

.cta-section p {
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

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

/* === FOOTER === */
.footer {
    background: var(--noir);
    color: var(--blanc);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand img {
    height: 50px;
    margin-bottom: var(--spacing-md);
}

.footer-brand p {
    color: var(--gris-moyen);
    font-size: 0.9rem;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--vert-emeraude);
}

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

.footer-column ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-column ul li a {
    color: var(--gris-moyen);
    font-size: 0.9rem;
}

.footer-column ul li a:hover {
    color: var(--vert-clair);
}

.footer-newsletter input {
    width: 100%;
    padding: 12px 16px;
    border: none;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    color: var(--blanc);
}

.footer-newsletter input::placeholder {
    color: var(--gris-moyen);
}

.footer-newsletter .btn {
    width: 100%;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: var(--gris-moyen);
}

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

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

/* === FORMULAIRES === */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--noir);
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--gris);
    border-radius: var(--radius-sm);
    font-family: var(--font-secondaire);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--vert-emeraude);
    box-shadow: 0 0 0 3px var(--vert-pale);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

.form-select {
    appearance: none;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%23475569" stroke-width="2"><polyline points="6 9 12 15 18 9"></polyline></svg>');
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px;
    padding-right: 50px;
}

/* === PAGE HEADER (intérieur) === */
.page-header {
    background: linear-gradient(135deg, var(--bleu-profond) 0%, var(--vert-emeraude) 100%);
    padding: 150px 0 80px;
    text-align: center;
    color: var(--blanc);
}

.page-header h1 {
    color: var(--blanc);
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    font-size: 0.9rem;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.7);
}

.breadcrumb a:hover {
    color: var(--blanc);
}

.breadcrumb span {
    color: var(--vert-clair);
}

/* === TIMELINE === */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--vert-emeraude);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    padding: var(--spacing-md) 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.timeline-item:nth-child(odd) .timeline-content {
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
    grid-column: 2;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 20px;
    height: 20px;
    background: var(--vert-emeraude);
    border: 4px solid var(--blanc);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow: var(--shadow-md);
}

/* === MAP CONTAINER === */
.map-container {
    height: 400px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* === GALLERY === */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
}

.gallery-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .poles-grid,
    .impact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        max-width: 400px;
        margin: var(--spacing-xl) auto 0;
    }
    
    .hero-visual {
        display: none;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.75rem; }

    .hero {
        padding-top: 120px;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--blanc);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .poles-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .impact-grid {
        grid-template-columns: 1fr;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
}

/* === ANIMATIONS === */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

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

.text-primary { color: var(--vert-emeraude); }
.text-secondary { color: var(--bleu-profond); }
.text-muted { color: var(--gris-moyen); }

.bg-light { background: var(--gris-clair); }
.bg-dark { background: var(--noir); }
.bg-primary { background: var(--vert-emeraude); }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.py-1 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-2 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-3 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }

/* === Bouton retour en haut === */
.scroll-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--vert-emeraude);
    color: #fff;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
}
.form-control.error,
.form-control-admin.error {
    border-color: #dc2626;
    box-shadow: 0 0 0 2px rgba(220,38,38,.15);
}