/* ===================================
   BATIHUMI - Main Stylesheet
   Professional Humidity Treatment Website
   =================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary-blue: #2196F3;
    --primary-blue-dark: #1976D2;
    --primary-blue-light: #64B5F6;
    --secondary-blue: #1565C0;
    --dark-blue: #0D47A1;
    --footer-blue: #1E88E5;
    --whatsapp-green: #25D366;
    
    /* Neutrals */
    --white: #FFFFFF;
    --off-white: #F8FAFC;
    --gray-50: #F5F7FA;
    --gray-100: #E8EDF2;
    --gray-200: #D1D9E0;
    --gray-300: #B0BEC5;
    --gray-400: #90A4AE;
    --gray-500: #78909C;
    --gray-600: #607D8B;
    --gray-700: #455A64;
    --gray-800: #37474F;
    --gray-900: #263238;
    --black: #1A1A1A;
    
    /* Accent */
    --accent-yellow: #FFC107;
    --accent-green: #4CAF50;
    --accent-orange: #FF9800;
    
    /* Typography */
    --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

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

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

/* ===================================
   BUTTONS
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-full);
    transition: var(--transition-base);
    white-space: nowrap;
    text-align: center;
}

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

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

.btn-outline {
    background-color: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--gray-200);
}

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

.btn-outline-white {
    background-color: var(--white);
    color: var(--gray-800);
    border: none;
}

.btn-outline-white:hover {
    background-color: var(--gray-100);
}

/* WhatsApp Button - Fixed */
.btn-whatsapp {
    background-color: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--gray-200);
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
}

.btn-whatsapp:hover {
    border-color: var(--whatsapp-green);
    background-color: var(--whatsapp-green);
    color: var(--white);
}

.btn-whatsapp i {
    font-size: 1.1rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
}

.btn-full-width {
    display: flex;
    width: 100%;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
    padding: 1rem 2rem;
}

.btn-center {
    display: flex;
    margin: 0 auto var(--spacing-2xl);
}

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

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

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 8px;
}

.logo-text {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--gray-900);
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--gray-700);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-blue);
    transition: var(--transition-base);
}

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

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

.header-cta {
    padding: 0.6rem 1.25rem;
    font-size: 0.9rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--gray-800);
    transition: var(--transition-base);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 60px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('https://images.unsplash.com/photo-1504307651254-35680f356dfd?w=1920&h=1080&fit=crop');
    background-size: cover;
    background-position: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0.7) 50%, rgba(255,255,255,0.3) 100%);
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 3rem;
    align-items: center;
}

.hero-text h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.15;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--gray-600);
    margin-bottom: 1.5rem;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.hero-cta {
    margin-bottom: 2rem;
    display: block;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--gray-600);
}

.badge i {
    color: var(--primary-blue);
    opacity: 0.7;
}

/* Hero Form Card */
.hero-form-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-xl);
}

.hero-form-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    text-align: center;
    margin-bottom: 1.5rem;
}

/* ===================================
   FORMS
   =================================== */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    color: var(--gray-800);
    background-color: var(--gray-50);
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    background-color: var(--white);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* ===================================
   SECTION STYLES
   =================================== */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary-blue);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
}

.section-header h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-header p {
    font-size: 1.05rem;
    color: var(--gray-600);
}

/* ===================================
   SERVICES SECTION
   =================================== */
.services {
    background-color: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    border: 1px solid var(--gray-100);
}

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

.service-card.featured {
    background: linear-gradient(135deg, var(--gray-50) 0%, #E3F2FD 100%);
}

.service-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}

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

.service-card:hover .service-image img {
    transform: scale(1.05);
}

.service-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
}

.service-content {
    padding: 1.25rem;
}

.service-content h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.service-card.featured .service-content h3 {
    color: var(--primary-blue);
}

.service-content p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.5;
}

/* ===================================
   REALISATIONS SECTION
   =================================== */
.realisations {
    background-color: var(--gray-50);
}

.realisations-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.realisation-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

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

.realisation-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

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

.realisation-labels {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    right: 1rem;
    display: flex;
    justify-content: space-between;
}

.label-before,
.label-after {
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
}

.label-before {
    background-color: var(--gray-700);
    color: var(--white);
}

.label-after {
    background-color: var(--primary-blue);
    color: var(--white);
}

.realisation-card h4 {
    padding: 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-800);
}

/* Before/After Grid */
.before-after-grid {
    display: flex;
    flex-direction: column;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.before-after-pair {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 3rem;
}

.before-after-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 0 0 auto;
}

.ba-label {
    display: inline-block;
    padding: 0.6rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    color: white;
    margin-bottom: 1rem;
    text-align: center;
    background: #2196F3;
}

.before-after-item img {
    width: 400px;
    height: 300px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

/* ===================================
   TEMOIGNAGES SECTION - INFINITE CAROUSEL
   =================================== */
.temoignages {
    background-color: var(--white);
    overflow: hidden;
}

/* Carousel Container */
.carousel-container {
    width: 100%;
    overflow: hidden;
    margin: 2rem 0;
}

.carousel-track {
    display: flex;
    gap: 1.5rem;
    animation: scroll 40s linear infinite;
    width: max-content;
}

.carousel-track:hover {
    animation-play-state: paused;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-50% - 0.75rem));
    }
}

/* Témoignage Card */
.temoignage-card {
    flex: 0 0 380px;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    transition: var(--transition-base);
}

.temoignage-card:hover {
    box-shadow: var(--shadow-md);
}

.temoignage-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.temoignage-stars {
    display: flex;
    gap: 0.25rem;
}

.temoignage-stars i {
    color: var(--accent-yellow);
    font-size: 1rem;
}

.temoignage-date {
    font-size: 0.85rem;
    color: var(--gray-400);
}

.temoignage-text {
    font-size: 0.95rem;
    color: var(--gray-700);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.temoignage-author strong {
    display: block;
    font-size: 0.95rem;
    color: var(--gray-900);
}

.temoignage-author span {
    font-size: 0.85rem;
    color: var(--gray-500);
}

/* ===================================
   GARANTIES SECTION
   =================================== */
.garanties {
    background-color: var(--gray-50);
}

.garanties-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.garantie-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    transition: var(--transition-base);
}

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

.garantie-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.garantie-icon i {
    font-size: 1.5rem;
    color: var(--primary-blue);
}

.garantie-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.garantie-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
}

/* ===================================
   CONTACT SECTION (Coordonnées + Formulaire)
   =================================== */
.contact {
    background-color: var(--white);
}

/* Coordonnées Grid */
.coordonnees-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.coordonnee-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    transition: var(--transition-base);
}

.coordonnee-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.coordonnee-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 1rem;
    background: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.coordonnee-card p {
    font-size: 0.95rem;
    color: var(--gray-700);
    line-height: 1.5;
}

/* Contact Content */
.contact-intro {
    color: var(--gray-600);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.contact-form {
    background: var(--white);
}

.form-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1.5rem;
}

.form-buttons .btn {
    width: 100%;
}

.map-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-bottom: 1.5rem;
}

.map-container iframe {
    display: block;
}

.quick-consultation {
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.quick-consultation h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

.quick-consultation p {
    font-size: 0.9rem;
    color: var(--gray-700);
    margin-bottom: 1rem;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background-color: var(--footer-blue);
    color: var(--white);
    padding: 4rem 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-brand h3 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.footer-brand > p {
    font-size: 0.95rem;
    opacity: 0.85;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.footer-contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.footer-info-item i {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.footer-info-item div {
    display: flex;
    flex-direction: column;
}

.footer-info-item strong {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.footer-info-item span {
    font-size: 0.85rem;
    opacity: 0.85;
}

.footer-links h4 {
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.25rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    font-size: 0.9rem;
    opacity: 0.85;
    transition: var(--transition-base);
}

.footer-links a:hover {
    opacity: 1;
    padding-left: 0.5rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1.5rem 0;
}

.footer-bottom p {
    font-size: 0.85rem;
    opacity: 0.75;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

.footer-social a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.footer-legal {
    display: flex;
    gap: 1.5rem;
}

.footer-legal a {
    font-size: 0.85rem;
    opacity: 0.75;
}

.footer-legal a:hover {
    opacity: 1;
}

/* ===================================
   FLOATING DIAGNOSTIC BUTTON (Yellow)
   =================================== */
.floating-diagnostic-btn {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    background: #FFD600;
    color: #0D3B66;
    padding: 0.6rem 1.25rem 0.6rem 0.6rem;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.85rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: var(--transition-base);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.floating-diagnostic-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.25);
    background: #FFEA00;
}

.floating-btn-icon {
    width: 32px;
    height: 32px;
    background: #0D3B66;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-btn-icon i {
    color: #FFFFFF;
    font-size: 0.9rem;
}

/* ===================================
   MODAL
   =================================== */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    transition: var(--transition-base);
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 2rem;
    width: 100%;
    max-width: 400px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: translateY(20px);
    transition: var(--transition-base);
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    color: var(--primary-blue);
    font-size: 1.25rem;
    padding: 0.5rem;
}

.modal-content h3 {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
}

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

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

.hero-text > * {
    animation: fadeInUp 0.6s ease forwards;
}

.hero-text > *:nth-child(1) { animation-delay: 0.1s; }
.hero-text > *:nth-child(2) { animation-delay: 0.2s; }
.hero-text > *:nth-child(3) { animation-delay: 0.3s; }
.hero-text > *:nth-child(4) { animation-delay: 0.4s; }
.hero-text > *:nth-child(5) { animation-delay: 0.5s; }

.hero-form-card {
    animation: fadeIn 0.8s ease forwards;
    animation-delay: 0.4s;
    opacity: 0;
}

/* ===================================
   RESPONSIVE - TABLET
   =================================== */
@media (max-width: 1024px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1.5rem;
        gap: 0;
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-link {
        display: block;
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--gray-100);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .header-cta {
        display: none;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-form-wrapper {
        max-width: 450px;
        margin: 0 auto;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .realisations-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .garanties-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .form-buttons {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    
    .footer-brand {
        grid-column: 1 / -1;
    }
    
    .temoignage-card {
        flex: 0 0 320px;
    }
}

/* ===================================
   RESPONSIVE - MOBILE
   =================================== */
@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
    }
    
    section {
        padding: 3.5rem 0;
    }
    
    .hero {
        min-height: auto;
        padding: 100px 0 40px;
    }
    
    .hero-text h1 {
        font-size: 1.8rem;
    }
    
    .hero-badges {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        justify-items: center;
    }
    
    .hero-form-wrapper {
        display: none;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .service-image {
        height: 140px;
    }
    
    .service-content {
        padding: 1rem;
    }
    
    .service-content h3 {
        font-size: 0.9rem;
    }
    
    .service-content p {
        font-size: 0.85rem;
    }
    
    .realisations-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .realisation-image {
        height: 160px;
    }
    
    .realisation-card h4 {
        padding: 1rem;
        font-size: 0.85rem;
    }
    
    .before-after-grid {
        gap: 2.5rem;
    }

    .before-after-pair {
        flex-direction: column;
        gap: 1.5rem;
        align-items: center;
    }

    .before-after-item {
        width: 100%;
        max-width: 100%;
    }

    .before-after-item img {
        width: 100%;
        max-width: 100%;
        height: auto;
        min-height: 220px;
        object-fit: cover;
    }

    .ba-label {
        width: 100%;
        max-width: 200px;
        padding: 0.5rem 2rem;
        font-size: 0.95rem;
    }
    
    .temoignage-card {
        flex: 0 0 300px;
    }
    
    .garanties-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .garantie-card {
        padding: 1.5rem 1rem;
    }
    
    .coordonnees-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .coordonnee-card {
        padding: 1.25rem;
    }
    
    .coordonnee-icon {
        width: 45px;
        height: 45px;
    }
    
    .coordonnee-card p {
        font-size: 0.85rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-legal {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .btn-full-width {
        padding: 0.875rem 1.5rem;
    }
}

/* ===================================
   RESPONSIVE - SMALL MOBILE
   =================================== */
@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-badges {
        grid-template-columns: 1fr;
    }
    
    .services-grid,
    .realisations-grid,
    .garanties-grid {
        grid-template-columns: 1fr;
    }
    
    .coordonnees-grid {
        grid-template-columns: 1fr;
    }
    
    .temoignage-card {
        flex: 0 0 calc(100vw - 3rem);
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
}

/* ===================================
   UTILITY CLASSES
   =================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-md); }
.mb-2 { margin-bottom: var(--spacing-lg); }
.mb-3 { margin-bottom: var(--spacing-xl); }

/* Print Styles */
@media print {
    .header,
    .mobile-diagnostic-btn,
    .modal {
        display: none;
    }
    
    .hero {
        padding-top: 0;
        min-height: auto;
    }
    
    section {
        break-inside: avoid;
    }
}