@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 400;
  src: url('../fonts/Montserrat-Regular.ttf') format('truetype');
  font-display: swap;
}

:root {
    --bg: #F4F4F7;
    --bg-card: #FFFFFF;
    --text: #1C1C1E;
    --sub: #6E6E73;
    --primary: #0071E3;
    --primary-hover: #0077ED;
    --border: rgba(0, 0, 0, 0.08);
    --toggle-bg: #E3E3E8;
    --toggle-pill: #FFFFFF;
    --dropdown-bg: #FFFFFF;
    --badge-bg: rgba(52, 199, 89, 0.1);
    --badge-color: #28CD41;
    --input-bg: #F4F4F7;
    --green: #34C759;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.02);
    --shadow-md: 0 14px 34px rgba(0, 0, 0, 0.04);
    --shadow-hover: 0 26px 50px rgba(0, 0, 0, 0.08);
    --header-bg: rgba(244, 244, 247, 0.85);
    --gradient-card: linear-gradient(180deg, rgba(255,255,255,0.8) 0%, rgba(255,255,255,1) 100%);
}

[data-theme="dark"] {
    --bg: #0A0A0C;
    --bg-card: #16161A;
    --text: #F5F5F7;
    --sub: #B3B3B8;
    --primary: #0A84FF;
    --primary-hover: #2491FF;
    --border: rgba(255, 255, 255, 0.08);
    --toggle-bg: #2C2C2E;
    --toggle-pill: #1C1C1E;
    --dropdown-bg: #1C1C22;
    --badge-bg: rgba(52, 199, 89, 0.15);
    --badge-color: #34C759;
    --input-bg: #222227;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 14px 34px rgba(0, 0, 0, 0.35);
    --shadow-hover: 0 26px 50px rgba(0, 0, 0, 0.5);
    --header-bg: rgba(10, 10, 12, 0.85);
    --gradient-card: linear-gradient(180deg, rgba(22,22,26,0.8) 0%, rgba(22,22,26,1) 100%);
}

* { margin: 0; padding: 0; box-sizing: border-box; scroll-behavior: smooth; }
html { scroll-padding-top: 90px; }
body { background-color: var(--bg); color: var(--text); font-family: 'Montserrat', sans-serif; -webkit-font-smoothing: antialiased; overflow-x: hidden; transition: background-color 0.3s, color 0.3s; }
img { max-width: 100%; display: block; }

/* Reste du code inchangé... */
header { position: fixed; top: 0; width: 100%; padding: 16px 8%; display: flex; justify-content: space-between; align-items: center; z-index: 2000; background: var(--header-bg); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); }
.logo { display: flex; align-items: center; text-decoration: none; font-weight: 700; font-size: 21px; color: var(--text); letter-spacing: -0.6px; }
.logo span { color: var(--primary); font-weight: 800; }
nav { display: flex; gap: 35px; align-items: center; }
.nav-item-wrapper { position: relative; padding: 10px 0; }
.nav-item { text-decoration: none; color: var(--sub); font-size: 14px; font-weight: 500; transition: color 0.2s ease; display: inline-flex; align-items: center; gap: 4px; }
.nav-item:hover, .nav-item-wrapper:hover .nav-item, .nav-item.active { color: var(--text); }
.nav-item .arrow { font-size: 10px; transition: transform 0.2s ease; display: inline-block; }
.nav-item-wrapper:hover .nav-item .arrow { transform: rotate(180deg); }
.dropdown-menu { position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(10px); background: var(--dropdown-bg); min-width: 280px; border-radius: 16px; padding: 12px; box-shadow: var(--shadow-hover); border: 1px solid var(--border); opacity: 0; pointer-events: none; transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease; z-index: 2010; }
.nav-item-wrapper:hover .dropdown-menu { opacity: 1; pointer-events: auto; transform: translateX(-50%) translateY(0); }
.dropdown-link { display: block; padding: 10px 14px; color: var(--text); font-size: 13px; font-weight: 500; text-decoration: none; border-radius: 8px; transition: background 0.15s ease, color 0.15s ease; }
.dropdown-link:hover { background: var(--primary); color: white; }

.header-actions { display: flex; align-items: center; gap: 20px; }
.theme-switch-box { position: relative; display: flex; background: var(--toggle-bg); padding: 3px; border-radius: 980px; width: 72px; height: 34px; cursor: pointer; transition: background 0.3s; user-select: none; border: 1px solid var(--border); }
.theme-option { flex: 1; display: flex; align-items: center; justify-content: center; font-size: 15px; z-index: 2; }
.theme-pill { position: absolute; top: 2px; left: 2px; width: 32px; height: 28px; background: var(--toggle-pill); border-radius: 980px; z-index: 1; box-shadow: 0 2px 6px rgba(0,0,0,0.1); transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1); }
[data-theme="dark"] .theme-pill { transform: translateX(34px); }
.btn-header-wa { background: var(--text); color: var(--bg); padding: 9px 20px; border-radius: 980px; text-decoration: none; font-weight: 600; font-size: 13px; transition: transform 0.2s, opacity 0.2s; box-shadow: var(--shadow-sm); }
.btn-header-wa:hover { opacity: 0.9; transform: scale(1.02); }
.burger { display: none; background: none; border: none; cursor: pointer; padding: 5px; z-index: 2100; }
.burger div { width: 22px; height: 2px; background: var(--text); margin: 4px; transition: transform 0.2s ease; }

@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.animate-fade-up { animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both; }
.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }

.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding: 120px 8% 80px; background: linear-gradient(to right, var(--bg) 50%, rgba(244,244,247,0.2) 100%), url('https://images.unsplash.com/photo-1646821804389-9778ce2a4fd7?q=85&w=1400&auto=format&fit=crop') center right / cover no-repeat; }
[data-theme="dark"] .hero { background: linear-gradient(to right, var(--bg) 50%, rgba(10,10,12,0.2) 100%), url('https://images.unsplash.com/photo-1646821804389-9778ce2a4fd7?q=85&w=1400&auto=format&fit=crop') center right / cover no-repeat; }
.hero-content { max-width: 820px; z-index: 10; }
.trust-badge { display: inline-flex; align-items: center; gap: 8px; background: var(--badge-bg); color: var(--badge-color); padding: 8px 16px; border-radius: 980px; font-size: 13px; font-weight: 700; margin-bottom: 24px; letter-spacing: -0.2px; }
.trust-badge .stars-inline { color: #FFD60A; font-size: 14px; }
.hero h1 { font-size: clamp(38px, 5vw, 68px); font-weight: 800; line-height: 1.1; letter-spacing: -2px; }
.hero h1 em { color: var(--primary); font-style: normal; }
.hero p { margin: 24px 0 32px; font-size: clamp(16px, 1.5vw, 19px); color: var(--sub); max-width: 720px; line-height: 1.5; letter-spacing: -0.3px; }
.hero-btns { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.btn-hero-primary { background: var(--primary); color: white; padding: 18px 38px; border-radius: 980px; text-decoration: none; font-weight: 600; font-size: 15px; transition: transform 0.25s, background 0.25s; box-shadow: 0 4px 18px rgba(0,113,227,0.25); text-align: center; }
.btn-hero-primary:hover { background: var(--primary-hover); transform: translateY(-2px); }
.btn-hero-secondary { background: var(--bg-card); color: var(--text); padding: 18px 38px; border-radius: 980px; text-decoration: none; font-weight: 600; font-size: 15px; border: 1px solid var(--border); transition: transform 0.25s, background 0.25s; box-shadow: var(--shadow-sm); text-align: center; }
.btn-hero-secondary:hover { transform: translateY(-2px); background: var(--bg); }

.section { padding: 120px 8%; position: relative; }
.section.alt { background: var(--bg-card); transition: background 0.3s; }
.label { color: var(--primary); font-weight: 700; text-transform: uppercase; font-size: 11px; letter-spacing: 2px; margin-bottom: 14px; display: block; }
.section-title { font-size: clamp(32px, 3.8vw, 46px); font-weight: 800; letter-spacing: -1.6px; margin-bottom: 60px; max-width: 850px; line-height: 1.15; }

.shipping-banner { background: var(--bg-card); border: 1px solid var(--border); border-radius: 28px; padding: 45px; margin-bottom: 80px; display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: center; box-shadow: var(--shadow-md); }
.shipping-text h3 { font-size: 26px; font-weight: 800; letter-spacing: -0.8px; margin-bottom: 10px; }
.shipping-text p { color: var(--sub); font-size: 16px; line-height: 1.5; max-width: 750px; }

.segmentation-container { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-bottom: 60px; }
.segment-card { background: var(--gradient-card); border: 1px solid var(--border); border-radius: 28px; padding: 45px; box-shadow: var(--shadow-md); display: flex; flex-direction: column; justify-content: space-between; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.segment-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.segment-card h3 { font-size: 28px; font-weight: 800; letter-spacing: -1px; margin-bottom: 16px; }
.segment-card p { color: var(--sub); font-size: 15.5px; line-height: 1.6; margin-bottom: 24px; }
.segment-features { list-style: none; margin-bottom: 35px; }
.segment-features li { display: flex; align-items: center; gap: 12px; font-size: 14.5px; font-weight: 500; margin-bottom: 12px; color: var(--text); }
.segment-features li span { color: var(--green); font-weight: 700; }

.process-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 40px; }
.process-step { background: var(--gradient-card); padding: 35px; border-radius: 24px; border: 1px solid var(--border); box-shadow: var(--shadow-sm); transition: transform 0.3s; }
.process-step:hover { transform: translateY(-5px); }
.step-number { font-size: 56px; font-weight: 800; color: rgba(0, 113, 227, 0.18); margin-bottom: 12px; font-variant-numeric: tabular-nums; }
.process-step h3 { font-size: 21px; font-weight: 700; margin-bottom: 14px; letter-spacing: -0.5px; }
.process-step p { color: var(--sub); font-size: 15px; line-height: 1.6; }

.services-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 1200px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .services-grid { grid-template-columns: 1fr; } }
.service-card { position: relative; height: 440px; border-radius: 28px; overflow: hidden; text-decoration: none; color: white; display: block; transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s; box-shadow: var(--shadow-md); border: 1px solid var(--border); }
.service-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1), filter 0.4s; filter: brightness(0.7); }
.service-card:hover img { transform: scale(1.04); filter: brightness(0.55); }
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.service-info { position: absolute; inset: 0; background: linear-gradient(to top, rgba(10,10,12,0.95) 0%, rgba(10,10,12,0.3) 55%, transparent 100%); padding: 40px; display: flex; flex-direction: column; justify-content: flex-end; }
.service-info h3 { font-size: 25px; font-weight: 700; letter-spacing: -0.6px; }
.service-info p { font-size: 14.5px; color: #E5E5EA; margin-top: 12px; line-height: 1.5; opacity: 0.95; }

.profile-container { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 60px; align-items: center; margin-top: 40px; }
.profile-image-box { position: relative; border-radius: 28px; overflow: hidden; height: 480px; box-shadow: var(--shadow-md); border: 1px solid var(--border); background-color: var(--input-bg); }
.profile-image-box img { width: 100%; height: 100%; object-fit: cover; }
.profile-text-box p { font-size: 16.5px; line-height: 1.65; color: var(--sub); margin-bottom: 24px; }
.profile-highlights { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 30px; }
.highlight-item { display: flex; align-items: center; gap: 12px; font-size: 14.5px; font-weight: 600; color: var(--text); }
.highlight-item span { color: var(--primary); font-size: 18px; }

.lab-showcase { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; margin-top: 40px; }
.lab-text p { font-size: 17px; line-height: 1.6; color: var(--sub); margin-bottom: 24px; }
.lab-features { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 30px; }
.lab-feat-item { display: flex; align-items: center; gap: 10px; font-size: 14.5px; font-weight: 600; color: var(--text); }
.lab-feat-item span { color: var(--primary); font-size: 18px; }
.lab-image-container { position: relative; border-radius: 28px; overflow: hidden; height: 450px; box-shadow: var(--shadow-hover); border: 1px solid var(--border); }
.lab-image-container img { width: 100%; height: 100%; object-fit: cover; }

.reviews-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.review-card { padding: 45px; background: var(--bg-card); border-radius: 24px; border: 1px solid var(--border); box-shadow: var(--shadow-md); transition: transform 0.3s; }
.review-card:hover { transform: translateY(-4px); }
.stars { color: #FFD60A; font-size: 18px; margin-bottom: 16px; letter-spacing: 2px; }
.review-text { font-size: 16px; line-height: 1.6; color: var(--text); margin-bottom: 24px; font-style: italic; font-weight: 500; }
.review-meta { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--border); padding-top: 16px; }
.review-author { font-size: 14px; font-weight: 700; color: var(--text); }
.review-verified { font-size: 12px; color: var(--green); font-weight: 600; display: flex; align-items: center; gap: 4px; }

.faq-container { max-width: 850px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); padding: 26px 0; cursor: pointer; transition: background 0.2s; }
.faq-question { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.faq-question h3 { font-size: 20px; font-weight: 600; letter-spacing: -0.4px; }
.faq-icon { font-size: 24px; color: var(--sub); transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1); font-weight: 300; user-select: none; }
.faq-item.active .faq-icon { transform: rotate(45deg); color: var(--text); }
.faq-answer { display: grid; grid-template-rows: 0fr; opacity: 0; transition: grid-template-rows 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease; }
.faq-answer-content { overflow: hidden; }
.faq-answer p { padding-top: 16px; color: var(--sub); font-size: 15.5px; line-height: 1.6; }
.faq-item.active .faq-answer { grid-template-rows: 1fr; opacity: 1; }

.contact-section { padding: 100px 8% 140px; }
.contact-container { display: grid; grid-template-columns: 1fr 1.1fr; gap: 70px; background: var(--bg-card); padding: 60px; border-radius: 32px; border: 1px solid var(--border); box-shadow: var(--shadow-md); align-items: start; }
.contact-info-side { position: sticky; top: 120px; }
.contact-info-side h2 { font-size: clamp(34px, 3.8vw, 44px); font-weight: 800; letter-spacing: -1.5px; margin-bottom: 20px; line-height: 1.1; }
.contact-info-side p { color: var(--sub); font-size: 16px; line-height: 1.6; margin-bottom: 40px; }
.direct-channels { border-top: 1px solid var(--border); padding-top: 35px; }
.wa-direct-link { display: inline-flex; align-items: center; gap: 12px; background: var(--green); color: white; padding: 16px 30px; border-radius: 980px; text-decoration: none; font-weight: 700; font-size: 15px; transition: transform 0.2s, background 0.2s; box-shadow: 0 4px 14px rgba(52,199,89,0.2); }
.wa-direct-link:hover { background: #28CD41; transform: translateY(-2px); }

.premium-form { display: flex; flex-direction: column; gap: 24px; background: transparent; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--text); letter-spacing: -0.2px; }
.premium-input, .premium-select, .premium-textarea { width: 100%; background: var(--input-bg); border: 1px solid var(--border); color: var(--text); padding: 16px 20px; border-radius: 12px; font-family: inherit; font-size: 14px; font-weight: 500; transition: border-color 0.2s, box-shadow 0.2s; outline: none; }
.premium-input:focus, .premium-select:focus, .premium-textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--badge-bg); }
.premium-textarea { resize: vertical; min-height: 120px; }
.btn-submit-form { background: var(--primary); color: white; border: none; padding: 18px; border-radius: 980px; font-size: 15px; font-weight: 600; cursor: pointer; transition: background 0.2s, transform 0.2s; box-shadow: 0 4px 14px rgba(0, 113, 227, 0.2); }
.btn-submit-form:hover { background: var(--primary-hover); transform: translateY(-2px); }

.whatsapp-sticky { position: fixed; bottom: 30px; right: 30px; width: 60px; height: 60px; background: var(--green); color: white; border-radius: 980px; display: flex; align-items: center; justify-content: center; text-decoration: none; box-shadow: 0 8px 24px rgba(52,199,89,0.3); z-index: 1900; transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1); animation: gentleBounce 4s infinite ease-in-out; }
.whatsapp-sticky:hover { transform: scale(1.08) translateY(-2px); }
@keyframes gentleBounce { 0%, 70%, 100% { transform: translateY(0); } 75% { transform: translateY(-12px); } 80% { transform: translateY(0); } 85% { transform: translateY(-5px); } 90% { transform: translateY(0); } }

footer.site-footer { background: var(--bg-card); border-top: 1px solid var(--border); padding: 70px 8% 30px; transition: background 0.3s; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 45px; }
.footer-brand .logo { display: inline-flex; margin-bottom: 14px; }
.footer-brand p { color: var(--sub); font-size: 14px; line-height: 1.6; max-width: 280px; }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a { width: 36px; height: 36px; border-radius: 980px; background: var(--input-bg); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--sub); transition: background 0.2s, color 0.2s; }
.footer-social a:hover { background: var(--primary); color: white; }
.footer-col h4 { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--text); margin-bottom: 20px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-col a { color: var(--sub); text-decoration: none; font-size: 14px; transition: color 0.2s; }
.footer-col a:hover { color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 13px; color: var(--sub); }
.footer-bottom a { color: var(--sub); text-decoration: none; font-weight: 600; }
.footer-bottom a:hover { color: var(--text); }
.footer-legal { display: flex; gap: 20px; justify-content: center; margin-bottom: 15px; }
.footer-legal a { font-size: 0.8rem; color: var(--sub); text-decoration: none; }
.footer-legal a:hover { color: var(--primary); }
.footer-copyright { display: flex; flex-direction: column; align-items: center; gap: 5px; font-size: 0.75rem; color: var(--sub); }

@media (max-width: 1200px) {
    .lab-showcase, .segmentation-container, .profile-container { grid-template-columns: 1fr; gap: 40px; }
    .lab-image-container, .profile-image-box { height: 350px; }
    .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 992px) {
    header { padding: 16px 5%; }
    nav { display: none; position: absolute; top: 100%; left: 0; width: 100%; background: var(--bg); border-bottom: 1px solid var(--border); flex-direction: column; padding: 40px; gap: 24px; text-align: center; box-shadow: var(--shadow-md); }
    nav.open { display: flex; }
    .dropdown-menu { position: static; transform: none; opacity: 1; pointer-events: auto; box-shadow: none; border: none; padding: 10px 0; min-width: auto; background: transparent; display: none; }
    .nav-item-wrapper:hover .dropdown-menu { display: block; }
    .burger { display: block; }
    .hero { padding: 140px 5% 80px; text-align: center; background: linear-gradient(to top, var(--bg) 45%, rgba(244,244,247,0.3) 100%), url('https://images.unsplash.com/photo-1646821804389-9778ce2a4fd7?q=85&w=800&auto=format&fit=crop') center; }
    .hero-content { margin: 0 auto; }
    .hero-btns { justify-content: center; flex-direction: column; width: 100%; }
    .btn-hero-primary, .btn-hero-secondary { width: 100%; }
    .shipping-banner { grid-template-columns: 1fr; text-align: center; gap: 24px; padding: 35px; }
    .section { padding: 90px 5%; }
    .contact-container { grid-template-columns: 1fr; gap: 50px; padding: 40px 24px; }
    .contact-info-side { position: static; }
    .form-row { grid-template-columns: 1fr; gap: 24px; }
    .services-grid, .reviews-grid, .process-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; text-align: center; }
    .footer-brand p { margin: 0 auto; }
    .footer-social { justify-content: center; }
    .footer-bottom { flex-direction: column; text-align: center; }