/* VARIABLES & CONFIGURATION GLOBALE */
:root {
    --color-primary: #6D4C41;
    --color-secondary: #B08968;
    --color-background: #FDFBF7;
    --color-text: #3E3636;
    --color-white: #FFFFFF;
    --color-green: #25D366;
    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Roboto', sans-serif;
    --shadow-light: 0 4px 15px rgba(0, 0, 0, 0.06);
    --shadow-strong: 0 8px 30px rgba(0, 0, 0, 0.12);
    --border-radius: 6px;
    --transition-fast: 0.2s ease-out;
    --transition-smooth: 0.4s ease-out;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-body); line-height: 1.6; color: var(--color-text); background-color: var(--color-white); overflow-x: hidden; }

/* MISE EN PAGE & CLASSES UTILITAIRES */
.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.section { padding: 6rem 0; }
.section-light { background-color: var(--color-background); }
.section-title { text-align: center; margin-bottom: 3.5rem; }
.section-title h2 { font-family: var(--font-heading); font-size: 2.8rem; color: var(--color-primary); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0.5rem; }
.section-title p { font-size: 1.1rem; color: #777; max-width: 600px; margin: 0 auto; }

/* BOUTONS */
.cta-button, .submit-btn, .nav-cta { transition: transform var(--transition-fast), box-shadow var(--transition-fast); }
.cta-button:hover, .submit-btn:hover, .nav-cta:hover { transform: translateY(-3px); box-shadow: var(--shadow-strong); }
.cta-button { display: inline-block; background-color: var(--color-secondary); color: var(--color-white); padding: 14px 35px; border-radius: var(--border-radius); text-decoration: none; font-family: var(--font-heading); font-size: 1.1rem; letter-spacing: 0.5px; text-transform: uppercase; box-shadow: var(--shadow-light); }

/* EN-TÊTE & NAVIGATION */
.main-header { position: sticky; top: 0; width: 100%; z-index: 1000; background-color: rgba(255, 255, 255, 0); padding: 1.5rem 0; transition: all var(--transition-smooth); }
.main-header.scrolled { background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(8px); box-shadow: 0 2px 10px rgba(0,0,0,0.05); padding: 0.75rem 0; }
.main-header .container { display: flex; justify-content: space-between; align-items: center; }
.header-logo img { height: 100px; transition: height var(--transition-smooth); }
.main-header.scrolled .header-logo img { height: 70px; }
.main-nav ul { display: flex; list-style: none; gap: 2.5rem; align-items: center; }
.main-nav a { text-decoration: none; color: var(--color-primary); font-weight: 500; font-size: 1.05rem; position: relative; padding: 5px 0; }
.main-nav a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background-color: var(--color-secondary); transition: var(--transition-smooth); }
.main-nav a:hover::after { width: 100%; }
.main-nav .nav-cta { background-color: var(--color-primary); color: var(--color-white); padding: 10px 22px; border-radius: var(--border-radius); }
.main-nav .nav-cta:hover { background-color: #4a3728; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; }

/* SECTION HÉROS */
.hero { height: 100vh; position: relative; display: flex; align-items: center; color: var(--color-white); overflow: hidden; text-align: left; }
.hero-background { position: absolute; inset: 0; background-image: url('images/image1.jpg'); /* CORRECTED PATH */ background-size: cover; background-position: center; animation: hero-zoom 30s ease-in-out infinite alternate; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(to right, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.05) 100%); }
.hero-content { position: relative; z-index: 2; }
.hero-content h1 { font-family: var(--font-heading); font-size: 4.5rem; font-weight: 700; color: var(--color-white); text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5); margin-bottom: 1rem; max-width: 800px; }
.hero-content p { font-size: 1.5rem; margin-bottom: 2.5rem; text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5); max-width: 600px; }

/* ANIMATIONS */
@keyframes hero-zoom { 0% { transform: scale(1); } 100% { transform: scale(1.1); } }
[data-animation], .animate-on-scroll { opacity: 0; transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
[data-animation="fade-up"], .fade-up { transform: translateY(40px); }
[data-animation="slide-up"], .slide-up { transform: translateY(60px); }
.is-visible { opacity: 1; transform: translateY(0); }

/* SECTION À PROPOS & COMPTEURS */
.about-content { display: flex; gap: 4rem; align-items: center; }
.about-text { flex: 2; }
.about-text p { margin-bottom: 1rem; font-size: 1.1rem; }
.about-stats { flex: 1; display: flex; justify-content: space-around; gap: 2rem; }
.stat-item { text-align: center; }
.stat-number { font-family: var(--font-heading); font-size: 3.5rem; color: var(--color-secondary); font-weight: 700; }
.stat-label { display: block; font-size: 1rem; color: #888; }

/* SECTION PRODUITS */
.products-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2.5rem; }
.product-card { background: var(--color-white); box-shadow: var(--shadow-light); border-radius: var(--border-radius); overflow: hidden; transition: transform var(--transition-smooth), box-shadow var(--transition-smooth); display: flex; flex-direction: column; }
.product-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-strong); }
.card-image { height: 250px; background-size: cover; background-position: center; }
.card-image.img-1 { background-image: url('images/image1.jpg'); }  /* CORRECTED PATH */
.card-image.img-2 { background-image: url('images/image2.jpeg'); } /* CORRECTED PATH */
.card-image.img-3 { background-image: url('images/image3.jpeg'); } /* CORRECTED PATH */
.card-content { padding: 2rem; display: flex; flex-direction: column; flex-grow: 1; }
.card-content h3 { font-family: var(--font-heading); font-size: 1.5rem; margin-bottom: 1rem; color: var(--color-primary); }
.card-content p { flex-grow: 1; margin-bottom: 1.5rem; }
.card-btn { align-self: flex-start; text-decoration: none; color: var(--color-primary); font-weight: 500; transition: var(--transition-fast); }
.card-btn:hover { color: var(--color-secondary); letter-spacing: 0.5px; }

/* FORMULAIRE DE DEVIS */
.form-container { max-width: 800px; margin: 0 auto; background: var(--color-white); padding: 3rem; border-radius: var(--border-radius); box-shadow: var(--shadow-light); }
.quote-form { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.form-group.full-width { grid-column: 1 / -1; }
.quote-form input, .quote-form select, .quote-form textarea { width: 100%; padding: 14px; border: 1px solid #ddd; border-radius: var(--border-radius); font-family: var(--font-body); font-size: 1rem; transition: var(--transition-fast); }
.quote-form input:focus, .quote-form select:focus, .quote-form textarea:focus { outline: none; border-color: var(--color-secondary); box-shadow: 0 0 0 3px rgba(176, 137, 104, 0.2); }
.quote-form textarea { resize: vertical; min-height: 120px; }
.submit-btn { grid-column: 1 / -1; border: none; cursor: pointer; background-color: var(--color-primary); color: var(--color-white); padding: 16px; border-radius: var(--border-radius); font-family: var(--font-heading); font-size: 1.2rem; text-transform: uppercase; }

/* PIED DE PAGE & BOUTONS FLOTTANTS */
.main-footer { background-color: var(--color-primary); color: rgba(255, 255, 255, 0.9); padding: 4rem 0 0; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; padding-bottom: 3rem; }
.footer-col h4 { font-family: var(--font-heading); color: var(--color-white); font-size: 1.4rem; margin-bottom: 1.5rem; }
.footer-col p, .footer-col ul, .footer-col li { list-style: none; margin-bottom: 0.8rem; }
.footer-col a { color: rgba(255, 255, 255, 0.9); text-decoration: none; transition: var(--transition-fast); }
.footer-col a:hover { color: var(--color-secondary); }
.footer-address { margin-top: 1rem; } /* ADDED STYLE FOR SPACING */
.copyright-bar { text-align: center; padding: 1.5rem 0; border-top: 1px solid rgba(255, 255, 255, 0.1); color: rgba(255, 255, 255, 0.7); }

.whatsapp-float { position: fixed; bottom: 30px; right: 30px; width: 60px; height: 60px; background-color: var(--color-green); border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-strong); z-index: 999; transition: transform var(--transition-fast); }
.whatsapp-float:hover { transform: scale(1.1); }
.whatsapp-float svg { width: 34px; height: 34px; fill: var(--color-white); }

.back-to-top {
    position: fixed;
    bottom: 100px; /* Position above the WhatsApp button */
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--color-text);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-strong);
    z-index: 998; /* Below WhatsApp button */
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.3s, visibility 0.3s, transform 0.3s;
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover { background-color: #555; }
.back-to-top svg { width: 20px; height: 20px; fill: currentColor; }

/* RESPONSIVE DESIGN & MENU MOBILE */
@media (max-width: 992px) {
    .about-content { flex-direction: column; }
}
@media (max-width: 768px) {
    .hero-content h1 { font-size: 2.8rem; }
    .hero-content p { font-size: 1.1rem; }
    .section-title h2 { font-size: 2.2rem; }
    .section { padding: 4rem 0; }
    .quote-form { grid-template-columns: 1fr; }
    .header-logo img { height: 60px; }
    .main-header.scrolled .header-logo img { height: 50px; }
    .nav-toggle { display: block; position: relative; width: 25px; height: 21px; z-index: 1001; }
    .nav-toggle span { display: block; width: 100%; height: 3px; background-color: var(--color-primary); border-radius: 3px; transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1); position: absolute; }
    .nav-toggle span:nth-child(1) { top: 0; }
    .nav-toggle span:nth-child(2) { top: 9px; }
    .nav-toggle span:nth-child(3) { top: 18px; }
    body.nav-open .nav-toggle span { background-color: var(--color-white); }
    body.nav-open .nav-toggle span:nth-child(1) { transform: rotate(45deg); top: 9px; }
    body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
    body.nav-open .nav-toggle span:nth-child(3) { transform: rotate(-45deg); top: 9px; }
    .main-nav { position: fixed; top: 0; right: 0; height: 100vh; width: 80%; max-width: 300px; background-color: var(--color-primary); transform: translateX(100%); transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1); z-index: 1000; }
    body.nav-open .main-nav { transform: translateX(0); box-shadow: -10px 0 30px rgba(0,0,0,0.2); }
    .main-nav ul { display: flex; flex-direction: column; height: 100%; justify-content: center; align-items: center; }
    .main-nav li { transform: translateY(20px); opacity: 0; transition: transform 0.4s ease, opacity 0.4s ease; }
    body.nav-open .main-nav li { transform: translateY(0); opacity: 1; }
    body.nav-open .main-nav li:nth-child(1) { transition-delay: 0.2s; }
    body.nav-open .main-nav li:nth-child(2) { transition-delay: 0.3s; }
    body.nav-open .main-nav li:nth-child(3) { transition-delay: 0.4s; }
    .main-nav a, .main-nav .nav-cta { color: var(--color-white); font-size: 1.5rem; }
    .main-nav .nav-cta { background: transparent; padding: 0; }
}