/* ==========================================================================
   VARIABLES — Thème Écrin d'Opale (coordonné à la carte de l'institut)
   ========================================================================== */
:root {
    --color-primary: #9f727d;
    --color-primary-dark: #7f5a63;
    --color-mauve: #b49aa1;
    --color-secondary: #f6e7e4;
    --color-secondary-dark: #eed7d3;
    --color-background: #f3eae7;
    --color-surface: #faf5f3;
    --color-cream: #faf5f3;
    --color-sand: #f0e2d0;
    --color-text: #54434a;
    --color-text-light: #7a6670;
    --color-white: #ffffff;
    --font-title: 'Cormorant Garamond', Georgia, serif;
    --font-main: 'Poppins', sans-serif;
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 80px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    --shadow-sm: 0 2px 4px rgba(84, 67, 74, 0.06);
    --shadow-md: 0 4px 6px rgba(84, 67, 74, 0.08), 0 2px 4px rgba(84, 67, 74, 0.05);
    --shadow-lg: 0 10px 15px rgba(84, 67, 74, 0.12), 0 4px 6px rgba(84, 67, 74, 0.06);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

.animate-on-scroll { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; will-change: opacity, transform; }
.animate-on-scroll.animated { opacity: 1; transform: translateY(0); }

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); background-color: var(--color-background); color: var(--color-text); line-height: 1.6; font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
.container { width: 100%; padding: 0 var(--spacing-md); margin: 0 auto; }
h1, h2, h3 { font-family: var(--font-title); font-weight: 600; line-height: 1.2; color: var(--color-text); }
.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; }
h1 { font-size: 3rem; margin-bottom: var(--spacing-sm); color: var(--color-primary-dark); letter-spacing: 0.5px; }
h2 { font-size: 2.1rem; text-align: center; margin-bottom: var(--spacing-lg); position: relative; padding-bottom: var(--spacing-sm); }
h2::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 60px; height: 3px; background-color: var(--color-primary); border-radius: var(--radius-full); }
h3 { font-size: 1.4rem; margin-bottom: var(--spacing-xs); color: var(--color-primary-dark); }

.btn { display: inline-flex; align-items: center; justify-content: center; background-color: var(--color-primary); color: var(--color-white); padding: 14px 28px; border-radius: var(--radius-full); font-weight: 500; transition: all var(--transition-normal); border: 1px solid var(--color-primary); cursor: pointer; box-shadow: var(--shadow-md); letter-spacing: 0.5px; }
.btn:hover { background-color: var(--color-primary-dark); border-color: var(--color-primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-lg); color: var(--color-white); }
.btn:active { transform: translateY(0); box-shadow: var(--shadow-sm); }
.btn-outline { background-color: transparent; color: var(--color-primary-dark); border: 1px solid var(--color-primary-dark); box-shadow: none; }
.btn-outline:hover { background-color: var(--color-primary-dark); color: var(--color-white); }
.btn-outline.btn-whatsapp, .btn.btn-outline[href*="wa.me"] { background-color: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }
.btn-outline.btn-whatsapp:hover, .btn.btn-outline[href*="wa.me"]:hover { background-color: #128C7E; border-color: #128C7E; }
.btn-large { display: flex; width: 100%; padding: 18px; font-size: 1.1rem; }
.btn-google { background: #fff; color: var(--color-text); border: 1px solid rgba(84,67,74,0.15); box-shadow: var(--shadow-sm); }
.btn-google:hover { background: var(--color-secondary); border-color: var(--color-primary); color: var(--color-primary-dark); }

.header { background-color: rgba(250, 245, 243, 0.95); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); box-shadow: var(--shadow-sm); position: fixed; width: 100%; top: 0; z-index: 1000; transition: all var(--transition-normal); }
.header-container { display: flex; justify-content: space-between; align-items: center; height: 70px; }
.logo { display: inline-flex; align-items: center; }
.logo img { height: 46px; width: auto; }
.menu-toggle { display: none; flex-direction: column; justify-content: space-between; width: 28px; height: 20px; background: transparent; border: none; cursor: pointer; z-index: 1001; padding: 0; }
.menu-toggle span { width: 100%; height: 2px; background-color: var(--color-text); border-radius: var(--radius-full); transition: all var(--transition-normal); transform-origin: center; }
@media (max-width: 767px) { .menu-toggle { display: flex; } }
.nav-menu { position: fixed; top: 0; right: -100%; width: 80%; max-width: 300px; height: 100vh; background-color: var(--color-surface); box-shadow: -5px 0 15px rgba(84, 67, 74, 0.08); transition: right var(--transition-normal); display: flex; flex-direction: column; padding: 100px var(--spacing-md) var(--spacing-md); z-index: 999; }
.nav-menu.active { right: 0; }
.nav-menu ul { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.nav-menu ul li a { font-size: 1.1rem; font-weight: 500; color: var(--color-text); display: block; padding: 12px 16px; border-radius: var(--radius-md); transition: background-color var(--transition-fast); }
.nav-menu ul li a:hover, .nav-menu ul li a:active { background-color: var(--color-secondary); color: var(--color-primary-dark); }
.menu-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(84, 67, 74, 0.4); z-index: 998; opacity: 0; visibility: hidden; transition: all var(--transition-normal); }
.menu-overlay.active { opacity: 1; visibility: visible; }

main { margin-top: 70px; }
section { padding: var(--spacing-xl) 0; }

.hero { background: linear-gradient(160deg, var(--color-secondary) 0%, var(--color-cream) 55%, var(--color-background) 100%); text-align: center; padding: 100px 0 120px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -50px; right: -50px; width: 220px; height: 220px; background-color: var(--color-primary); opacity: 0.12; border-radius: 50%; z-index: 0; }
.hero::after { content: ''; position: absolute; bottom: -80px; left: -40px; width: 260px; height: 250px; background-color: var(--color-mauve); opacity: 0.12; border-radius: 50%; z-index: 0; }
.hero .container { position: relative; z-index: 1; }
.hero-grid { display: flex; flex-direction: column; align-items: center; gap: var(--spacing-lg); }
.hero-logo { display: flex; flex-direction: column; align-items: center; gap: 6px; flex-shrink: 0; }
.hero-logo-img { width: 200px; max-width: 55vw; height: auto; }
.hero-logo-text { width: 360px; max-width: 78vw; height: auto; }
.hero-logo + .hero-logo-text, .hero-logo-text { margin-top: 10px; }
.hero-text { max-width: 640px; text-align: center; }
.hero-text p { margin-bottom: var(--spacing-lg); font-size: 1.1rem; color: var(--color-text-light); }
@media (min-width: 900px) {
    .hero-grid { flex-direction: row; align-items: center; text-align: left; }
    .hero-grid > .hero-logo { flex: 0 0 42%; }
    .hero-logo-img { width: 280px; max-width: none; }
    .hero-logo-text { width: 420px; max-width: none; }
    .hero-text { flex: 1; text-align: left; max-width: none; }
    .hero-text p { margin-left: 0; margin-right: 0; }
    .hero-actions { justify-content: flex-start; }
}
.hero-overtitle { font-size: 0.85rem; letter-spacing: 2px; text-transform: uppercase; color: var(--color-text-light); margin-bottom: var(--spacing-sm); }
.hero p { margin-bottom: var(--spacing-lg); font-size: 1.1rem; color: var(--color-text-light); max-width: 640px; margin-left: auto; margin-right: auto; }
.hero strong { color: var(--color-primary-dark); font-weight: 600; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--spacing-sm); justify-content: center; }

.services { background-color: var(--color-background); }
.tabs-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: var(--spacing-lg); }
.tab-btn { font-family: var(--font-main); font-size: 0.92rem; font-weight: 500; color: var(--color-text); background-color: var(--color-surface); border: 1px solid rgba(84, 67, 74, 0.15); padding: 10px 20px; border-radius: var(--radius-full); cursor: pointer; transition: all var(--transition-fast); }
.tab-btn:hover { border-color: var(--color-primary); color: var(--color-primary-dark); }
.tab-btn.active { background-color: var(--color-primary-dark); border-color: var(--color-primary-dark); color: var(--color-white); box-shadow: var(--shadow-md); }
.tab-panel { max-width: 800px; margin: 0 auto; }
.tab-subtitle { text-align: center; font-family: var(--font-title); font-style: italic; font-size: 1.2rem; color: var(--color-text-light); margin-bottom: var(--spacing-md); }
.tab-subhead { font-size: 1.5rem; margin: var(--spacing-lg) 0 var(--spacing-md); text-align: center; display: flex; align-items: center; justify-content: center; gap: 18px; flex-wrap: wrap; }
.tab-subhead + .services-list + .tab-subhead { margin-top: var(--spacing-lg); }
.subhead-note { font-family: var(--font-main); font-size: 0.82rem; font-weight: 400; font-style: italic; color: var(--color-text-light); letter-spacing: 0.3px; }
.brand-badge { height: 34px; width: auto; object-fit: contain; flex-shrink: 0; }
.brand-badge-eltraderm { height: 62px; }
.services-list { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.services-list-compact .service-item { padding: 12px 20px; }
.services-list-cols { display: grid; grid-template-columns: 1fr; gap: var(--spacing-sm); }
.service-item { display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; background-color: var(--color-surface); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); transition: transform var(--transition-fast), box-shadow var(--transition-fast); border: 1px solid rgba(84, 67, 74, 0.06); gap: var(--spacing-sm); }
.service-icon { width: 56px; height: 56px; border-radius: 50%; flex-shrink: 0; box-shadow: var(--shadow-sm); }
.service-variants { display: flex; flex-direction: column; gap: 10px; margin-top: 8px; }
.service-variant { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.variant-label { font-size: 0.92rem; color: var(--color-text); flex: 1; min-width: 140px; }
.service-variant .service-price { font-size: 1rem; padding: 4px 14px; }
.service-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.service-main { display: flex; flex-direction: column; gap: 4px; min-width: 0; flex: 1; padding-right: var(--spacing-sm); }
.service-name { font-family: var(--font-title); font-size: 1.25rem; font-weight: 600; color: var(--color-text); }
.service-desc { font-size: 0.85rem; font-weight: 300; color: var(--color-text-light); line-height: 1.5; }
.service-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; flex-shrink: 0; }
.service-duration { font-size: 0.78rem; color: var(--color-text-light); background-color: var(--color-secondary); border: 1px solid rgba(84, 67, 74, 0.08); padding: 2px 10px; border-radius: var(--radius-full); white-space: nowrap; }
.service-price { color: var(--color-primary-dark); font-weight: 600; font-size: 1.1rem; background-color: var(--color-secondary); padding: 6px 16px; border-radius: var(--radius-full); white-space: nowrap; }
.service-oldprice { color: var(--color-text-light); font-weight: 400; font-size: 0.85rem; margin-right: 4px; }
.cat-note { text-align: center; font-style: italic; color: var(--color-text-light); font-size: 0.9rem; margin: var(--spacing-md) 0 0; }

.gallery { background-color: var(--color-surface); text-align: center; }
.gallery-intro { margin: calc(-1 * var(--spacing-sm)) 0 var(--spacing-lg); color: var(--color-text-light); }
.carousel { max-width: 720px; margin: 0 auto; outline: none; }
.carousel-viewport { position: relative; overflow: hidden; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.carousel-track { display: flex; transition: transform 0.5s ease; }
.carousel-slide { flex: 0 0 100%; }
.carousel-slide img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; cursor: zoom-in; }
.carousel-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; border: none; border-radius: 50%; background-color: rgba(250, 245, 243, 0.85); color: var(--color-primary-dark); font-size: 1.1rem; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all var(--transition-fast); box-shadow: var(--shadow-md); }
.carousel-arrow:hover { background-color: var(--color-mauve); color: var(--color-white); }
.carousel-arrow.prev { left: 12px; } .carousel-arrow.next { right: 12px; }
.carousel-dots { display: flex; justify-content: center; gap: 8px; margin-top: var(--spacing-sm); }
.carousel-dots button { width: 10px; height: 10px; border-radius: 50%; border: none; background-color: var(--color-secondary-dark); cursor: pointer; transition: all var(--transition-fast); padding: 0; }
.carousel-dots button.active { background-color: var(--color-primary-dark); transform: scale(1.25); }

.lightbox { position: fixed; inset: 0; background-color: rgba(40, 30, 34, 0.92); display: flex; align-items: center; justify-content: center; z-index: 2000; opacity: 0; visibility: hidden; transition: opacity var(--transition-normal), visibility var(--transition-normal); }
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox-img { max-width: 90vw; max-height: 85vh; border-radius: var(--radius-md); box-shadow: var(--shadow-lg); }
.lightbox-close { position: absolute; top: 16px; right: 20px; width: 48px; height: 48px; border: none; border-radius: 50%; background-color: rgba(250, 245, 242, 0.12); color: var(--color-white); font-size: 1.8rem; line-height: 1; cursor: pointer; transition: background-color var(--transition-fast); }
.lightbox-close:hover { background-color: rgba(250, 245, 242, 0.25); }
.lightbox-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; border: none; border-radius: 50%; background-color: rgba(250, 245, 242, 0.12); color: var(--color-white); font-size: 1.3rem; cursor: pointer; transition: background-color var(--transition-fast); }
.lightbox-arrow:hover { background-color: rgba(250, 245, 242, 0.25); }
.lightbox-arrow.prev { left: 16px; } .lightbox-arrow.next { right: 16px; }

.contact { background-color: var(--color-background); }
.contact-info { display: grid; grid-template-columns: 1fr; gap: var(--spacing-md); margin-bottom: var(--spacing-lg); max-width: 800px; margin-left: auto; margin-right: auto; }
.info-block { text-align: left; padding: 32px 28px; background-color: var(--color-surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); transition: box-shadow var(--transition-fast); border: 1px solid rgba(84, 67, 74, 0.06); }
.info-block:hover { box-shadow: var(--shadow-md); }
.info-block h3 { text-align: center; margin-bottom: var(--spacing-sm); }
.info-block p { color: var(--color-text-light); line-height: 1.8; }
.hours { display: flex; flex-direction: column; gap: 8px; }
.hours-row { display: flex; align-items: baseline; gap: 12px; padding-bottom: 8px; border-bottom: 1px dashed rgba(84, 67, 74, 0.15); }
.hours-row:last-child { border-bottom: none; padding-bottom: 0; }
.hours-day { color: var(--color-text); font-weight: 500; }
.hours-time { margin-left: auto; color: var(--color-text-light); white-space: nowrap; }
.hours-note { margin-top: var(--spacing-sm); font-style: italic; font-size: 0.85rem; color: var(--color-text-light); text-align: center; }
.info-block em { font-size: 0.85rem; }
.info-block a:hover { color: var(--color-primary-dark); }
.social-links { display: flex; flex-direction: column; gap: 12px; margin-top: 4px; }
.social-link { display: flex; align-items: center; gap: 10px; color: var(--color-text-light); font-size: 0.95rem; transition: color var(--transition-fast); }
a.social-link:hover { color: var(--color-primary-dark); }
.social-link svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--color-primary); }
.btn-call { background-color: var(--color-primary); color: var(--color-white); max-width: 400px; margin: 0 auto; }
.btn-call:hover { background-color: var(--color-primary-dark); }

.footer { background-color: var(--color-text); color: var(--color-white); text-align: center; padding: var(--spacing-lg) 0; font-size: 0.9rem; }
.footer-name { font-family: var(--font-title); font-size: 1.5rem; letter-spacing: 1px; margin-bottom: var(--spacing-xs); }
.footer-info { opacity: 0.8; margin-bottom: var(--spacing-xs); }
.footer a:hover { color: var(--color-secondary); }
.footer p:last-child { opacity: 0.6; font-size: 0.8rem; }

/* WHATSAPP FLOTTANT */
.whatsapp-float { position: fixed; bottom: 25px; right: 25px; z-index: 9999; display: flex; align-items: center; gap: 10px; background: #25D366; color: white; padding: 14px 20px 14px 16px; border-radius: var(--radius-full); text-decoration: none; font-family: var(--font-main); font-weight: 500; font-size: 15px; box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4), var(--shadow-md); transition: all var(--transition-normal); animation: whatsapp-pulse 2s infinite; }
.whatsapp-float svg { width: 26px; height: 26px; flex-shrink: 0; }
.whatsapp-float:hover { background: #128C7E; transform: translateY(-2px) scale(1.03); box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6), var(--shadow-lg); color: white; }
@keyframes whatsapp-pulse { 0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); } 70% { box-shadow: 0 0 0 12px rgba(37, 211, 102, 0); } 100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); } }

@media (max-width: 600px) {
    .hero::before, .hero::after { display: none; }
    .hero-text { display: flex; flex-direction: column; }
    .hero-text > p:not(.hero-overtitle) { order: 3; margin-bottom: 0; }
    .hero-actions { order: 2; margin-bottom: var(--spacing-md); }
    .hero-overtitle { order: 1; }
    .service-item > .service-icon { align-self: flex-start; }
    .service-item { flex-wrap: wrap; }
    .service-item > .service-main { flex: 1 0 200px; padding-right: 0; }
    .service-item > .service-meta { flex-direction: row; align-items: center; gap: 10px; margin-left: auto; }
    .service-variant { flex-wrap: wrap; row-gap: 6px; }
    .service-variant .variant-label { flex: 1 1 100%; min-width: 0; }
    .service-variant .service-duration { margin-left: auto; }
    .whatsapp-float { bottom: 20px; right: 20px; width: 60px; height: 60px; padding: 0; justify-content: center; border-radius: 50%; }
    .whatsapp-float .whatsapp-text { display: none; }
    .whatsapp-float svg { width: 32px; height: 32px; }
}
@media (max-width: 480px) {
    section { padding: var(--spacing-lg) 0; }
    .hero { padding: 56px 0 64px; gap: var(--spacing-md); }
    .hero-grid { gap: var(--spacing-lg); }
    .hero-logo-img { width: 150px; }
    .hero-logo-text { width: 185px; }
    .hero-text p { font-size: 1rem; }
    .hero-actions { flex-direction: column; width: 100%; }
    .hero-actions .btn { width: 100%; }
    .service-item { padding: 16px 16px; }
    .service-icon { width: 44px; height: 44px; }
    .service-name { font-size: 1.15rem; }
    .tab-btn { padding: 8px 14px; font-size: 0.85rem; }
    .tab-subhead { font-size: 1.25rem; }
    .brand-badge { height: 26px; }
    .brand-badge-eltraderm { height: 46px; }
    .carousel-arrow { width: 36px; height: 36px; }
    .info-block { padding: 24px 18px; }
}
@media (min-width: 768px) {
    .container { max-width: 720px; }
    .header-container { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; }
    .header-container .logo { justify-self: start; }
    .header-container .nav-menu { justify-self: center; }
    .logo img { height: 52px; }
    .nav-menu { position: static; width: auto; max-width: none; height: auto; background-color: transparent; box-shadow: none; flex-direction: row; padding: 0; }
    .nav-menu ul { flex-direction: row; gap: var(--spacing-sm); }
    .nav-menu ul li a { padding: 8px 16px; }
    .nav-menu ul li a:hover { background-color: transparent; color: var(--color-primary); }
    .services-list-cols { grid-template-columns: 1fr 1fr; }
    .contact-info { grid-template-columns: 1fr 1fr; }
    .btn-large { width: auto; display: inline-flex; }
}
@media (min-width: 1024px) {
    .container { max-width: 960px; }
    h1 { font-size: 4rem; }
    .hero { padding: 140px 0 160px; }
    .contact-info { grid-template-columns: 1fr 1fr 1fr; }
}