:root {
    /* Premium Color Palette */
    --c-black: #18181b; /* Softer, elegant black */
    --c-black-light: #27272a;
    --c-white: #FFFFFF;
    --c-bg: #FAF9F6; /* Soft alabaster white */
    
    /* Nude / Beige tones */
    --c-nude: #E6DFD6; 
    --c-nude-dark: #CDBDAB;
    --c-nude-accent: #B29F8E;
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Outfit', sans-serif;
    
    --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
    font-family: var(--font-body);
    background-color: var(--c-bg);
    color: var(--c-black);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography styles */
h1, h2, h3, .logo {
    font-family: var(--font-heading);
    font-weight: 400;
}

h1 span, h2 span {
    font-style: italic;
    color: var(--c-nude-accent);
}

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

/* --- Loader --- */
.loader {
    position: fixed;
    inset: 0;
    background-color: var(--c-black);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.6s cubic-bezier(0.7, 0, 0.3, 1);
}
.loader.hide { transform: translateY(-100%); }
.loader-logo {
    color: var(--c-nude);
    font-family: var(--font-heading);
    font-size: 3rem;
    letter-spacing: 5px;
    animation: pulse 1.5s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* --- Header --- */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    padding: 1.5rem 4%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: var(--transition-fast);
}
.header.scrolled {
    background-color: rgba(250, 249, 246, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    padding: 1rem 4%;
}
.header.scrolled .logo, .header.scrolled .nav a:not(.btn-primary) {
    color: var(--c-black);
}
.logo {
    font-size: 1.5rem;
    color: var(--c-white);
    letter-spacing: 2px;
    z-index: 1001;
    transition: var(--transition-fast);
}
.logo .light { font-family: var(--font-body); font-weight: 300; font-size: 1.2rem; }

.nav {
    display: flex;
    gap: 3rem;
    align-items: center;
}
.nav a {
    text-decoration: none;
    color: var(--c-white);
    font-size: 0.95rem;
    font-weight: 400;
    transition: var(--transition-fast);
    position: relative;
}
.nav a:not(.btn-primary)::after {
    content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 1px;
    background-color: currentColor; transition: var(--transition-fast);
}
.nav a:hover:not(.btn-primary)::after { width: 100%; }

/* Buttons */
.btn-primary {
    background-color: var(--c-nude);
    color: var(--c-black) !important;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-weight: 500;
}
.btn-primary:hover { background-color: var(--c-nude-dark); }

.mobile-menu-btn { display: none; }

/* --- Hero Section --- */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 5% 15vh; /* Remonte le contenu central pour éviter le bandeau d'en bas */
}
.hero-bg {
    position: absolute; inset: 0; z-index: -1;
    overflow: hidden;
}
.hero-bg img {
    width: 100%; height: 100%; object-fit: cover;
    transform: scale(1.05);
    animation: slowZoom 20s linear infinite alternate;
}
@keyframes slowZoom { from { transform: scale(1.05); } to { transform: scale(1.15); } }
.hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to bottom, rgba(15,15,15,0.4) 0%, rgba(15,15,15,0.7) 100%);
}

.hero-content {
    max-width: 900px;
    color: var(--c-white);
    /* margin-top retiré pour garder le bloc bien centré mais surélevé */
}
.hero-chip {
    display: inline-block;
    padding: 0.5rem 1.2rem;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 50px;
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 2rem;
    backdrop-filter: blur(5px);
}
.hero h1 {
    font-size: clamp(3.5rem, 6vw, 5.5rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
}
.hero p {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: rgba(255,255,255,0.8);
    max-width: 600px;
    margin: 0 auto 3rem;
    font-weight: 300;
}
.hero-cta {
    display: flex; gap: 2rem; justify-content: center;
    margin-top: 2.5rem;
    position: relative;
    z-index: 20; /* S'assure que les boutons sont cliquables au-dessus des gradients */
}
.btn-solid {
    background-color: var(--c-nude); color: var(--c-black);
    padding: 1.2rem 3.5rem; text-decoration: none; border-radius: 50px;
    font-weight: 500; transition: var(--transition-smooth);
    letter-spacing: 0.5px;
    font-size: 1.15rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
.btn-solid:hover { 
    background-color: var(--c-white); 
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}
.btn-outline {
    background-color: transparent; color: var(--c-white);
    padding: 1.2rem 3.5rem; text-decoration: none; border-radius: 50px;
    border: 1.5px solid rgba(255,255,255,0.6);
    transition: var(--transition-smooth);
    letter-spacing: 0.5px;
    font-size: 1.15rem;
    backdrop-filter: blur(5px);
}
.btn-outline:hover { 
    background-color: var(--c-white); 
    color: var(--c-black);
    border-color: var(--c-white); 
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}

/* Banner */
.reassurance-banner {
    position: absolute; bottom: 0; left: 5%; right: 5%;
    transform: translateY(50%);
    background-color: var(--c-black);
    display: flex; justify-content: space-around; flex-wrap: wrap; gap: 2rem;
    padding: 2.5rem 3rem;
    border-radius: 4px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    z-index: 10;
}
.reassurance-item {
    text-align: center; max-width: 250px;
}
.reassurance-item h3 {
    font-family: var(--font-body); font-weight: 600; font-size: 1.4rem;
    margin-bottom: 0.5rem; color: var(--c-nude);
}
.reassurance-item p {
    font-size: 0.9rem; color: rgba(255,255,255,0.7); line-height: 1.4;
}
.reassurance-divider {
    width: 1px; background-color: rgba(255,255,255,0.1);
}

/* --- Prestations --- */
.prestations {
    padding: 12rem 5% 8rem;
}
.section-header { text-align: center; max-width: 700px; margin: 0 auto 5rem; }
.section-title { font-size: clamp(2.5rem, 4vw, 3.5rem); margin-bottom: 1.5rem; }
.section-subtitle { font-size: 1.15rem; color: #555; font-weight: 300; }

.cards-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 3rem;
    max-width: 1400px; margin: 0 auto;
}
.prest-card {
    flex: 1 1 320px;
    max-width: 400px;
    display: flex; flex-direction: column;
    cursor: pointer;
}
.prest-img {
    position: relative; overflow: hidden; border-radius: 4px; aspect-ratio: 4/5;
    margin-bottom: 1.5rem;
}
.prest-img img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.prest-card:hover .prest-img img { transform: scale(1.08); }
.prest-content h3 {
    font-size: 1.8rem; margin-bottom: 0.8rem;
    position: relative; display: inline-block;
}
.prest-content h3::after {
    content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 1px;
    background-color: var(--c-black); transition: var(--transition-smooth);
}
.prest-card:hover .prest-content h3::after { width: 100%; }
.prest-content p { color: #555; font-size: 1rem; font-weight: 300; }

/* --- Process Section --- */
.process-section {
    background-color: var(--c-black);
    color: var(--c-white);
    padding: 8rem 5%;
}
.process-container {
    max-width: 1400px; margin: 0 auto;
    display: grid; grid-template-columns: 1fr 1.2fr; gap: 6rem;
    align-items: center;
}
.process-text { padding-right: 2rem; }
.process-text p {
    font-size: 1.2rem; font-weight: 300; color: rgba(255,255,255,0.7);
    margin-top: 2rem;
}
.process-steps { display: flex; flex-direction: column; gap: 3rem; }
.step {
    display: flex; gap: 2rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 2rem;
}
.step-num {
    font-size: 1.2rem; font-family: var(--font-body); font-weight: 300;
    color: var(--c-nude-accent);
}
.step-info h3 { font-size: 1.8rem; margin-bottom: 0.5rem; }
.step-info p { color: rgba(255,255,255,0.6); font-weight: 300; }

/* --- Contact Section --- */
.contact-section { padding: 8rem 5%; }
.contact-card {
    max-width: 1200px; margin: 0 auto;
    background-color: var(--c-white);
    border-radius: 8px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.05);
    display: grid; grid-template-columns: 1fr 1.2fr;
    overflow: hidden;
}
.contact-content {
    background: linear-gradient(to right, rgba(230, 223, 214, 0.95), rgba(230, 223, 214, 0.92)), url('https://v0-aclp-agencement-redesign.vercel.app/images/hero.jpg') center/cover;
    padding: 5rem 4rem;
    display: flex; flex-direction: column; justify-content: center;
}
.contact-content p { margin: 1.5rem 0 3rem; font-size: 1.1rem; color: var(--c-black-light); }
.phone-link {
    display: inline-flex; align-items: center; gap: 1rem;
    font-size: 1.4rem; font-family: var(--font-heading); color: var(--c-black);
    text-decoration: none; transition: var(--transition-fast);
}
.phone-link:hover { color: rgba(0,0,0,0.6); }

.contact-form-wrapper { padding: 5rem 4rem; position: relative; }
.modern-form { display: flex; flex-direction: column; gap: 2rem; }
.input-row { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.input-group { display: flex; flex-direction: column; gap: 0.5rem; }
.input-group label { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; color: #555; }
.modern-form input, .modern-form textarea, .modern-form select {
    width: 100%; border: none; border-bottom: 1px solid #ddd; padding: 0.8rem 0;
    background: transparent; font-family: var(--font-body); font-size: 1rem;
    outline: none; transition: var(--transition-fast);
}
.modern-form input:focus, .modern-form textarea:focus, .modern-form select:focus {
    border-bottom-color: var(--c-nude-dark);
}
.submit-btn {
    align-self: flex-start; margin-top: 1rem;
    background-color: var(--c-black); color: var(--c-white);
    border: none; padding: 1.2rem 2.5rem; border-radius: 50px;
    font-family: var(--font-body); font-size: 1rem; cursor: pointer;
    display: flex; align-items: center; gap: 1rem; transition: var(--transition-fast);
}
.submit-btn:hover { background-color: var(--c-nude-accent); }
.form-success {
    position: absolute; inset: 0; background: var(--c-white);
    display: flex; justify-content: center; align-items: center;
    font-size: 1.5rem; font-family: var(--font-heading); color: green;
    opacity: 0; pointer-events: none; transition: opacity 0.4s;
}

/* --- Avis Section --- */
.avis-section {
    padding: 8rem 5%;
    background-color: var(--c-bg);
}
.avis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
}
.avis-card {
    background-color: var(--c-white);
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    border-top: 4px solid var(--c-nude-dark);
    position: relative;
    transition: var(--transition-fast);
}
.avis-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
}
.avis-stars {
    color: #D4AF37;
    font-size: 1.2rem;
    letter-spacing: 2px;
}
.avis-text {
    font-size: 1.05rem;
    color: var(--c-black-light);
    font-style: italic;
    line-height: 1.8;
    flex-grow: 1;
}
.avis-author h4 {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--c-black);
    margin-bottom: 0.2rem;
}
.avis-author span {
    font-size: 0.85rem;
    color: var(--c-nude-accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --- Footer --- */
.footer {
    background-color: var(--c-black); color: var(--c-white); padding: 5rem 5% 2rem;
}
.footer-top {
    max-width: 1400px; margin: 0 auto; display: flex; justify-content: space-between;
    padding-bottom: 4rem; border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo { color: var(--c-white); margin-bottom: 1.5rem; }
.footer-brand p { color: rgba(255,255,255,0.6); line-height: 1.8; }
.footer-links { display: flex; gap: 5rem; }
.link-col h4 { font-family: var(--font-body); margin-bottom: 1.5rem; text-transform: uppercase; letter-spacing: 1px; font-size: 0.9rem; color: var(--c-nude);}
.link-col a { display: block; color: rgba(255,255,255,0.6); text-decoration: none; margin-bottom: 0.8rem; transition: var(--transition-fast); }
.link-col a:hover { color: var(--c-white); }
.footer-bottom { text-align: center; max-width: 1400px; margin: 2rem auto 0; color: rgba(255,255,255,0.4); font-size: 0.9rem; }

/* --- Reveal Animations --- */
.reveal-up { opacity: 0; transform: translateY(40px); transition: 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-up.active { opacity: 1; transform: translateY(0); }
.reveal-left { opacity: 0; transform: translateX(-40px); transition: 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-left.active { opacity: 1; transform: translateX(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* --- Page Hero --- */
.page-hero {
    position: relative;
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 5%;
}
.page-hero .hero-bg img {
    animation: none;
    transform: scale(1.05);
}
.page-hero h1 { margin-bottom: 1rem; font-size: clamp(3rem, 5vw, 4.5rem); color: var(--c-white); }
.page-hero p { max-width: 700px; margin: 0 auto; color: rgba(255,255,255,0.8); font-size: 1.15rem; font-weight: 300; }

/* --- Gallery Section --- */
.gallery-section {
    padding: 6rem 5% 8rem;
    max-width: 1400px;
    margin: 0 auto;
}
.gallery-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 4rem;
}
.filter-btn {
    background: transparent;
    border: 1px solid rgba(0,0,0,0.1);
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-fast);
    color: var(--c-black);
}
.filter-btn:hover, .filter-btn.active {
    background-color: var(--c-black);
    color: var(--c-white);
    border-color: var(--c-black);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}
.gallery-item {
    position: relative;
    border-radius: 4px;
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
    transition: transform 0.4s ease, opacity 0.4s ease;
}
.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.gallery-item:hover img {
    transform: scale(1.08);
}
.gallery-item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 50%);
    display: flex;
    align-items: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: var(--transition-fast);
}
.gallery-item:hover .gallery-item-overlay {
    opacity: 1;
}
.gallery-item-overlay h3 {
    color: var(--c-white);
    font-size: 1.4rem;
    font-family: var(--font-heading);
    transform: translateY(20px);
    transition: var(--transition-fast);
}
.gallery-item:hover .gallery-item-overlay h3 {
    transform: translateY(0);
}

/* --- Prestation Details --- */
.prestations-container {
    padding: 2rem 0;
    max-width: 1400px;
    margin: 0 auto;
}
.prestation-detail {
    padding: 6rem 5%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
/* Alternate layout for even sections */
.prestation-detail:nth-child(even) .prestation-content {
    order: 2;
}
.prestation-detail:nth-child(even) .prestation-image {
    order: 1;
}

.prestation-content h3 {
    font-size: 1.1rem;
    color: var(--c-nude-accent);
    margin-bottom: 0.8rem;
    font-family: var(--font-body);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
}
.prestation-content h2 {
    font-size: clamp(2.2rem, 3.5vw, 3rem);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}
.prestation-content p {
    font-size: 1.15rem;
    color: var(--c-black-light);
    margin-bottom: 2.5rem;
}

.prestation-content .btn-solid {
    background-color: var(--c-black);
    color: var(--c-nude);
}

.prestation-content .btn-solid:hover {
    background-color: var(--c-nude);
    color: var(--c-black);
}
.prestation-list {
    list-style: none;
    margin-bottom: 3rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.prestation-list li {
    position: relative;
    padding-left: 2rem;
    font-size: 1.05rem;
    color: var(--c-black);
}
.prestation-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 6px;
    height: 6px;
    background-color: var(--c-nude-dark);
    border-radius: 50%;
}

.prestation-image {
    position: relative;
    border-radius: 6px;
    overflow: hidden;
    aspect-ratio: 4/5;
    box-shadow: 0 30px 60px rgba(0,0,0,0.1);
}
.prestation-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.prestation-image:hover img {
    transform: scale(1.05);
}

/* Responsive */
@media (max-width: 1500px) {
    .reassurance-banner {
        position: relative; transform: none; bottom: auto;
        left: 0; width: 100%;
        margin-top: 4rem;
        border-radius: 4px; padding: 3rem 2rem;
    }
    .hero { height: auto; min-height: 100vh; padding-bottom: 4rem; flex-direction: column; justify-content: center; }
    .hero-content { margin-top: 15vh; }
    .prestations { padding-top: 6rem; }
}

@media (max-width: 1024px) {
    .reassurance-divider { display: none; }
    .process-container { grid-template-columns: 1fr; gap: 4rem; }
    .contact-card { grid-template-columns: 1fr; }
    
    .prestation-detail {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 4rem 5%;
    }
    .prestation-detail:nth-child(even) .prestation-content {
        order: unset;
    }
    .prestation-detail:nth-child(even) .prestation-image {
        order: unset;
    }
    .prestation-image {
        aspect-ratio: auto;
        min-height: 400px;
    }
}

@media (max-width: 768px) {
    .header .nav {
        position: fixed; inset: 0; background-color: var(--c-white);
        flex-direction: column; justify-content: center; transform: translateX(100%);
        transition: transform 0.4s;
    }
    .header .nav.active { transform: translateX(0); }
    .header.scrolled .nav { background-color: var(--c-bg); }
    .header .nav a { color: var(--c-black); font-size: 1.5rem; }
    .mobile-menu-btn {
        display: block; background: none; border: none; width: 30px; height: 20px;
        position: relative; z-index: 1002; cursor: pointer;
    }
    .mobile-menu-btn span {
        position: absolute; width: 100%; height: 2px; background-color: var(--c-white);
        transition: 0.3s;
    }
    .header.scrolled .mobile-menu-btn span { background-color: var(--c-black); }
    .mobile-menu-btn span:first-child { top: 0; }
    .mobile-menu-btn span:last-child { bottom: 0; }
    .mobile-menu-btn.active span { background-color: var(--c-black); }
    .mobile-menu-btn.active span:first-child { transform: rotate(45deg); top: 9px; }
    .mobile-menu-btn.active span:last-child { transform: rotate(-45deg); bottom: 9px; }

    .hero h1 { font-size: clamp(2.2rem, 10vw, 3rem); }
    .reassurance-banner {
        display: flex;
        flex-direction: column;
        align-items: center;
        padding: 3rem 1.5rem;
        gap: 2.5rem;
        margin-top: 2rem;
    }
    .reassurance-item {
        max-width: 100%;
        text-align: center;
    }
    .reassurance-item h3 { font-size: 1.2rem; }
    .hero-cta { flex-direction: column; gap: 1rem; }
    .btn-solid, .btn-outline { width: 100%; text-align: center; }

    .input-row { grid-template-columns: 1fr; }
    .footer-top { flex-direction: column; gap: 3rem; }
    .contact-form-wrapper, .contact-content { padding: 3rem 2rem; }
}