/* ==========================================================================
   1. VARIABLES & DESIGN SYSTEM (variables.css intégré)
   ========================================================================== */
:root {
    /* Palette de Couleurs Premium Spécifiée */
    --primary: #1E3A8A;       /* Bleu Royal Premium */
    --primary-light: #2563EB; /* Bleu Actif */
    --primary-dark: #1E40AF;  /* Bleu Profond */
    --accent: #F97316;        /* Orange de conversion */
    --accent-hover: #EA580C;  /* Orange d'interaction */
    --background: #F8FAFC;    /* Fond Ultra-propre */
    --dark: #111827;          /* Texte et titres sombres */
    --text-muted: #4B5563;    /* Texte secondaire */
    --white: #FFFFFF;         /* Fond cartes / blocs pur */
    --success: #10B981;       /* Vert de validation */
    --danger: #EF4444;        /* Rouge alertes */

    /* Ombres douces haut de gamme */
    --shadow-sm: 0 2px 4px rgba(17, 24, 39, 0.05);
    --shadow-md: 0 10px 25px -5px rgba(17, 24, 39, 0.08), 0 8px 10px -6px rgba(17, 24, 39, 0.05);
    --shadow-lg: 0 20px 30px -10px rgba(17, 24, 39, 0.12), 0 10px 15px -5px rgba(17, 24, 39, 0.06);
    
    /* Arrondis luxueux */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* Transitions & Animations standardisées */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s linear;

    /* Container global widths */
    --max-width: 1280px;
}

/* ==========================================================================
   2. REINITIALISATION & ACCESSIBILITÉ BASE
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--background);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

button, select, input, textarea {
    font-family: inherit;
    font-size: inherit;
}

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

ul {
    list-style: none;
}

/* Visibilité d'accessibilité WCAG */
input:focus, select:focus, textarea:focus, button:focus {
    outline: 3px solid rgba(249, 115, 22, 0.5);
    outline-offset: 2px;
}

/* Structural Grid & Framework */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin-right: auto;
    margin-left: auto;
    padding-right: 24px;
    padding-left: 24px;
}

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

/* Section Typographique Premium */
section {
    padding: 100px 0;
}

.section-header {
    max-width: 700px;
    margin: 0 auto 60px auto;
}

.section-badge {
    background-color: rgba(30, 58, 170, 0.08);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-block;
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark);
    line-height: 1.2;
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
}

/* ==========================================================================
   3. DESIGN SYSTEM: COMPOSANTS (components.css intégré)
   ========================================================================== */
/* Boutons Haut de Gamme */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background-color: var(--accent);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.4);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.5);
}

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

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

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

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

.btn-lg {
    padding: 18px 40px;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

/* Cartes (Cards System) */
.card-premium {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    border: 1px solid rgba(17, 24, 39, 0.03);
}

.card-premium:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

/* Bloc de citation / Avis (Blockquote) */
blockquote {
    position: relative;
    padding-left: 30px;
    border-left: 4px solid var(--accent);
    font-style: italic;
    color: var(--text-muted);
    margin: 20px 0;
}

/* Formulaires stylisés */
.form-group {
    margin-bottom: 24px;
    position: relative;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 8px;
    color: var(--dark);
}

.input-icon-wrapper {
    position: relative;
}

.input-icon-wrapper i {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.input-icon-wrapper input,
.input-icon-wrapper select,
.input-icon-wrapper textarea {
    width: 100%;
    padding: 14px 16px 14px 48px;
    border-radius: var(--radius-md);
    border: 1px solid #E2E8F0;
    background-color: #F8FAFC;
    color: var(--dark);
    transition: var(--transition-smooth);
    -webkit-appearance: none;
}

.input-icon-wrapper select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%234B5563'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 18px center;
    background-size: 16px;
    padding-right: 48px;
}

.input-icon-wrapper input:focus,
.input-icon-wrapper select:focus,
.input-icon-wrapper textarea:focus {
    background-color: var(--white);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(30, 58, 138, 0.1);
}

.form-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.required { color: var(--danger); }
.error-msg {
    color: var(--danger);
    font-size: 0.8rem;
    font-weight: 500;
    display: none;
    margin-top: 4px;
}

.form-group.invalid .error-msg { display: block; }
.form-group.invalid input, .form-group.invalid select { border-color: var(--danger); }

/* ==========================================================================
   4. STRUCTURE DE NAVIGATION ET EN-TÊTE GLOBAL
   ========================================================================== */
.top-bar {
    background-color: var(--dark);
    color: var(--white);
    font-size: 0.85rem;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-bar-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-info, .top-badges {
    display: flex;
    gap: 20px;
    align-items: center;
}

.separator { color: rgba(255, 255, 255, 0.2); }

.main-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding: 16px 0;
    transition: var(--transition-smooth);
}

.main-header.scrolled {
    padding: 10px 0;
    box-shadow: var(--shadow-md);
}

.header-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 2rem;
    color: var(--primary);
}

.logo.white .logo-icon { color: var(--accent); }
.logo.white { color: var(--white); }

.logo-title {
    font-weight: 800;
    font-size: 1.3rem;
    letter-spacing: -0.5px;
    color: var(--primary);
    display: block;
    line-height: 1;
}

.logo.white .logo-title { color: var(--white); }

.logo-subtitle {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent);
    display: block;
    text-transform: uppercase;
}

/* Menu de navigation */
.nav-list {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-link {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-muted);
    padding: 8px 0;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: var(--transition-smooth);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

/* Gestion des listes déroulantes (Dropdowns) */
.dropdown { position: relative; }
.nav-chevron { font-size: 0.75rem; margin-left: 2px; }
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(15px);
    background-color: var(--white);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    padding: 16px;
    width: 280px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    border: 1px solid rgba(17, 24, 39, 0.05);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu li {
    margin-bottom: 4px;
}

.dropdown-menu li:last-child { margin-bottom: 0; }

.dropdown-menu a {
    display: block;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.dropdown-menu a:hover {
    background-color: var(--background);
    color: var(--primary);
    padding-left: 18px;
}

.header-actions { display: flex; gap: 16px; align-items: center; }
.mobile-menu-toggle { display: none; }

/* ==========================================================================
   5. PAGES & SECTIONS DU SITE DYNAMIQUE
   ========================================================================== */

/* Structure du Hero Section */
.hero {
    position: relative;
    background-color: var(--dark);
    color: var(--white);
    padding: 16px 0 100px 0;
    overflow: hidden;
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(135deg, rgba(17, 24, 39, 0.95) 40%, rgba(30, 58, 138, 0.4) 100%), url('https://images.unsplash.com/photo-1632935187088-50a34240c5bb?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    z-index: 1;
}

.hero-wrapper-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
}

.hero-tagline-box {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-title {
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1px;
    margin-bottom: 24px;
}

.hero-desc {
    font-size: 1.25rem;
    color: rgba(241, 245, 249, 0.9);
    margin-bottom: 40px;
    max-width: 650px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-trust-row {
    display: flex;
    gap: 30px;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 30px;
}

.hero-trust-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.hero-trust-item i {
    font-size: 1.8rem;
}

.hero-trust-text span {
    display: block;
    font-size: 0.75rem;
    color: rgba(241, 245, 249, 0.6);
    text-transform: uppercase;
    font-weight: 600;
}

.hero-trust-text strong {
    font-size: 1.05rem;
    font-weight: 700;
}

/* Bloc Formulaire Hero Intégré (CRO Élevé) */
.hero-form-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-lg);
    color: var(--dark);
}

.hero-form-card h3 {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 6px;
    letter-spacing: -0.5px;
}

.hero-form-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* Section Atouts (Why Choose Us) */
.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.why-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(249, 115, 22, 0.1);
    color: var(--accent);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.why-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

/* Section Grille des Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-img-wrapper {
    position: relative;
    height: 200px;
    margin: -40px -40px 30px -40px;
    border-top-left-radius: var(--radius-md);
    border-top-right-radius: var(--radius-md);
    overflow: hidden;
}

.service-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.card-premium:hover .service-img-wrapper img {
    transform: scale(1.08);
}

.service-card-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-card-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

.service-card-link {
    font-weight: 700;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
}

.service-card-link:hover {
    color: var(--accent);
}

/* Section Galerie Avant / Après interactif */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.gallery-item {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.ba-slider {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
    background-color: var(--white);
}

.ba-side { position: relative; height: 320px; overflow: hidden; }
.ba-side img { width: 100%; height: 100%; object-fit: cover; }
.ba-label {
    position: absolute;
    bottom: 16px;
    background-color: rgba(17, 24, 39, 0.8);
    color: var(--white);
    padding: 4px 14px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    letter-spacing: 0.5px;
}
.ba-label.before { left: 16px; border-left: 3px solid var(--danger); }
.ba-label.after { right: 16px; border-left: 3px solid var(--success); }

.gallery-info { padding: 24px; }
.gallery-info h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 6px; }
.gallery-info p { color: var(--text-muted); font-size: 0.9rem; }

/* Section Témoignages (Testimonials Layout) */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.stars-box { color: #FBBF24; margin-bottom: 16px; font-size: 0.9rem; }
.review-text { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 24px; }
.reviewer-profile { display: flex; align-items: center; gap: 14px; }
.reviewer-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background-color: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}
.reviewer-info h4 { font-size: 1rem; font-weight: 700; }
.reviewer-info span { font-size: 0.8rem; color: var(--text-muted); }

/* Section Compteurs & Statistiques */
.stats-section {
    background-color: var(--primary);
    color: var(--white);
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-item-box { text-center: center; }
.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 12px;
}
.stat-label {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--white);
}

/* Section Processus (Step-by-step) */
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    position: relative;
}

.process-card { position: relative; }
.process-step-num {
    font-size: 4rem;
    font-weight: 900;
    color: rgba(30, 58, 138, 0.06);
    position: absolute;
    top: -20px;
    left: 20px;
    line-height: 1;
    z-index: 1;
}

.process-card-inner { position: relative; z-index: 2; }
.process-card-inner h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; }
.process-card-inner p { color: var(--text-muted); font-size: 0.9rem; }

/* Section Financement & Bannières CTA */
.cta-banner-box {
    background-color: var(--dark);
    color: var(--white);
    border-radius: var(--radius-lg);
    padding: 60px;
    position: relative;
    overflow: hidden;
}

.cta-banner-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: linear-gradient(90deg, rgba(17,24,39,0.95) 50%, rgba(30,58,138,0.2) 100%), url('https://images.unsplash.com/photo-1621293954908-907141447de3?auto=format&fit=crop&w=1200&q=80');
    background-size: cover; background-position: center;
}

.cta-banner-content { position: relative; z-index: 2; max-width: 650px; }
.cta-banner-content h2 { font-size: 2.3rem; font-weight: 800; margin-bottom: 16px; }
.cta-banner-content p { font-size: 1.1rem; color: rgba(241, 245, 249, 0.9); margin-bottom: 30px; }
.cta-action-row { display: flex; gap: 20px; flex-wrap: wrap; }

/* Section Territoires (Service Area Grid) */
.regions-wrapper-layout {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
}

.regions-nav-box {
    background: var(--white);
    padding: 30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.regions-nav-box h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 20px; }
.region-macro-list li { margin-bottom: 12px; font-weight: 600; cursor: pointer; display: flex; align-items: center; gap: 10px; transition: var(--transition-fast); }
.region-macro-list li:hover { color: var(--primary); }

.cities-tags-pool {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-content: flex-start;
}

.city-anchor-tag {
    background-color: var(--white);
    border: 1px solid #E2E8F0;
    padding: 10px 20px;
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--dark);
    box-shadow: var(--shadow-sm);
}

.city-anchor-tag:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Accordéon FAQ éco-responsable SEO */
.faq-accordion-box {
    max-width: 850px;
    margin: 0 auto;
}

.faq-node {
    background-color: var(--white);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition-smooth);
    border: 1px solid rgba(17, 24, 39, 0.02);
}

.faq-trigger-btn {
    width: 100%;
    padding: 24px;
    text-align: left;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--dark);
    gap: 20px;
}

.faq-icon-indicator {
    width: 32px;
    height: 32px;
    background-color: var(--background);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    transition: var(--transition-smooth);
}

.faq-node.active .faq-icon-indicator {
    transform: rotate(180deg);
    background-color: var(--accent);
    color: var(--white);
}

.faq-response-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
    padding: 0 24px;
    color: var(--text-muted);
    font-size: 1rem;
}

.faq-node.active .faq-response-body {
    max-height: 1000px;
    transition: max-height 0.5s ease-in-out;
    padding-bottom: 24px;
}

/* Section Contact & Devis Hybride */
.contact-layout-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
}

.map-embed-holder {
    background: #E2E8F0;
    border-radius: var(--radius-md);
    overflow: hidden;
    height: 350px;
    margin-top: 30px;
}

/* ==========================================================================
   6. INTERFACES ET COMPOSANTS APPLICATIFS MODAUX
   ========================================================================== */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(17, 24, 39, 0.7);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    padding: 20px;
}

.modal-overlay.open { opacity: 1; visibility: visible; }
.modal-container {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    max-width: 650px;
    width: 100%;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    transform: scale(0.95);
    transition: var(--transition-smooth);
}
.modal-overlay.open .modal-container { transform: scale(1); }

.modal-close {
    position: absolute;
    top: 20px; right: 20px;
    background: none; border: none;
    font-size: 2rem; color: var(--text-muted);
    cursor: pointer; z-index: 10;
}
.modal-header-box { background-color: var(--background); padding: 32px 40px 24px 40px; border-bottom: 1px solid #E2E8F0; }
.modal-form-body { padding: 32px 40px; }
.form-security-note { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 20px; }

/* Écran de succès formulaire */
.form-success-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: var(--white);
    z-index: 15;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    opacity: 0; visibility: hidden;
    transition: var(--transition-smooth);
}
.form-success-overlay.active { opacity: 1; visibility: visible; }
.success-icon-box { font-size: 4.5rem; color: var(--success); margin-bottom: 20px; }
.success-content h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.success-next-steps { text-align: left; background-color: var(--background); padding: 24px; border-radius: var(--radius-md); margin: 24px 0; }
.success-next-steps ul { margin-top: 10px; }
.success-next-steps li { margin-bottom: 8px; font-weight: 500; font-size: 0.95rem; }

/* Pied de page structures */
.main-footer { background-color: var(--dark); color: rgba(241,245,249,0.7); padding: 80px 0 30px 0; border-top: 4px solid var(--primary); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr; gap: 40px; margin-bottom: 60px; }
.footer-desc { font-size: 0.95rem; margin: 20px 0; }
.footer-badges { display: flex; gap: 10px; }
.f-badge { background-color: rgba(255,255,255,0.08); color: var(--white); padding: 6px 14px; border-radius: var(--radius-sm); font-size: 0.8rem; font-weight: 600; }
.footer-title { color: var(--white); font-size: 1.15rem; font-weight: 700; margin-bottom: 24px; position: relative; }
.footer-links-list li { margin-bottom: 12px; }
.footer-links-list a:hover { color: var(--accent); padding-left: 6px; }
.footer-contact-info li { margin-bottom: 20px; position: relative; padding-left: 28px; font-size: 0.95rem; }
.footer-contact-info i { position: absolute; left: 0; top: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 30px; font-size: 0.9rem; }
.footer-bottom-wrapper { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
.footer-legal { display: flex; gap: 20px; }

/* Boutons flottants persistants */
.floating-desktop-actions { position: fixed; bottom: 30px; right: 30px; display: flex; flex-direction: column; gap: 14px; z-index: 999; }
.floating-btn { width: 56px; height: 56px; border-radius: var(--radius-full); display: flex; align-items: center; justify-content: center; color: var(--white); box-shadow: var(--shadow-lg); font-size: 1.3rem; transition: var(--transition-smooth); border: none; cursor: pointer; }
.fb-phone { background-color: var(--success); }
.fb-quote { background-color: var(--accent); }
.fb-top { background-color: var(--primary); opacity: 0; visibility: hidden; }
.fb-top.visible { opacity: 1; visibility: visible; }
.floating-btn:hover { transform: scale(1.1); }
.sticky-cta-mobile { display: none; }

/* Micro-animations complexes */
.pulse { animation: css-pulse-effect 2s infinite; }
@keyframes css-pulse-effect {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

.fade-in-section { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.fade-in-section.visible { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   7. ADAPTABILITÉ ET RESPONSIVE DE POINTE (responsive.css intégré)
   ========================================================================== */
@media (max-width: 1140px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 992px) {
    section { padding: 70px 0; }
    .section-title { font-size: 2rem; }
    .hero-title { font-size: 2.8rem; }
    .hero-wrapper-grid { grid-template-columns: 1fr; }
    .hero-form-card { max-width: 550px; margin: 0 auto; }
    .why-grid, .services-grid, .testimonials-grid { grid-template-columns: 1fr 1fr; }
    .process-grid { grid-template-columns: 1fr 1fr; }
    .regions-wrapper-layout { grid-template-columns: 1fr; }
    .contact-layout-grid { grid-template-columns: 1fr; }
    .main-nav { display: none; } /* Activé en mobile drawer */
    
    .mobile-menu-toggle {
        display: flex; flex-direction: column; gap: 6px; background: none; border: none; cursor: pointer;
    }
    .mobile-menu-toggle .bar { width: 28px; height: 32px; height: 3px; background-color: var(--primary); border-radius: 2px; transition: var(--transition-smooth); }
    
    /* Navigation Mobile Réactive */
    .main-header.mobile-open .main-nav {
        display: block; position: absolute; top: 100%; left: 0; width: 100%; background: var(--white); box-shadow: var(--shadow-lg); padding: 24px; border-top: 1px solid #E2E8F0;
    }
    .main-header.mobile-open .nav-list { flex-direction: column; align-items: flex-start; gap: 16px; }
    .main-header.mobile-open .dropdown-menu { position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none; width: 100%; padding: 10px 0 0 16px; }
    .hidden-md { display: none !important; }
}

@media (max-width: 768px) {
    .hero-title { font-size: 2.2rem; }
    .why-grid, .services-grid, .testimonials-grid, .process-grid, .gallery-grid { grid-template-columns: 1fr; }
    .top-bar { display: none; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    
    /* Sticky mobile conversion bar */
    body { padding-bottom: 60px; }
    .sticky-cta-mobile {
        display: flex; position: fixed; bottom: 0; left: 0; width: 100%; height: 60px; z-index: 1001; box-shadow: 0 -4px 10px rgba(0,0,0,0.1);
    }
    .sticky-btn-mobile { flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px; color: var(--white); font-weight: 700; font-size: 1.1rem; }
    .btn-call-bg { background-color: var(--success); }
    .btn-quote-bg { background-color: var(--accent); }
    .floating-desktop-actions { bottom: 80px; }
    .fb-phone, .fb-quote { display: none; } /* Remplacés par la barre fixe */
    .fb-top { opacity: 1; visibility: visible; }
}