:root {
    --primary: #3b82f6;
    --primary-light: #60a5fa;
    --primary-dark: #2563eb;
    --secondary: #8b5cf6;
    --accent: #06b6d4;
    --orange: #f97316;
    --dark: #0a0a0a;
    --darker: #000000;
    --light: #f8fafc;
    --gray: #94a3b8;
    --card-bg: rgba(30, 41, 59, 0.62);
    --section-bg: rgba(15, 23, 42, 0.82);
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent) 0%, var(--secondary) 100%);
    --gradient-hero: linear-gradient(135deg, #1d4ed8 0%, #7c3aed 48%, #06b6d4 100%);
    --gradient-orange: linear-gradient(135deg, #f97316 0%, #8b5cf6 100%);
}
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', 'Segoe UI', system-ui, sans-serif; }
html { scroll-behavior: smooth; }
body {
    color: var(--light);
    line-height: 1.6;
    background-color: var(--darker);
    overflow-x: hidden;
    background-image:
        radial-gradient(circle at 15% 45%, rgba(59, 130, 246, 0.14) 0%, transparent 25%),
        radial-gradient(circle at 85% 25%, rgba(139, 92, 246, 0.14) 0%, transparent 25%),
        radial-gradient(circle at 50% 85%, rgba(6, 182, 212, 0.10) 0%, transparent 25%);
}
.container { width: 90%; max-width: 1200px; margin: 0 auto; padding: 0 15px; }
header {
    background-color: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(12px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.5);
    position: sticky; top: 0; z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.navbar { display: flex; justify-content: space-between; align-items: center; padding: 18px 0; }
.logo { display: flex; align-items: center; text-decoration: none; color: white; }
.logo-icon { width: 54px; height: 54px; margin-right: 12px; flex-shrink: 0; }
.logo-text { display: flex; flex-direction: column; }
.logo-main {
    font-size: 25px; font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    line-height: 1; letter-spacing: 1px;
}
.logo-tagline { font-size: 12px; color: var(--gray); font-weight: 500; margin-top: 3px; }
.nav-links { display: flex; list-style: none; align-items: center; }
.nav-links li { margin-left: 28px; }
.nav-links a {
    text-decoration: none; color: var(--light); font-weight: 500;
    transition: color 0.3s; position: relative; font-size: 0.95rem;
}
.nav-links a:after {
    content: ''; position: absolute; width: 0; height: 2px;
    bottom: -6px; left: 0; background-color: var(--primary-light);
    transition: width 0.3s;
}
.nav-links a:hover { color: var(--primary-light); }
.nav-links a:hover:after { width: 100%; }
.cta-button, .cta-button-large, .secondary-button {
    text-decoration: none; display: inline-flex; align-items: center; gap: 10px;
    border-radius: 10px; font-weight: 800; transition: all 0.3s;
}
.cta-button {
    background: var(--gradient-primary); color: white !important; padding: 12px 22px;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}
.cta-button:hover, .cta-button-large:hover, .secondary-button:hover { transform: translateY(-3px); }
.cta-button:after { display: none; }
.cta-button-large {
    background-color: white; color: var(--primary); padding: 16px 34px;
    font-size: 1.08rem; box-shadow: 0 6px 18px rgba(0,0,0,0.22);
}
.secondary-button {
    color: white; padding: 16px 34px; font-size: 1.08rem;
    border: 1px solid rgba(255,255,255,0.28);
    background: rgba(255,255,255,0.12); backdrop-filter: blur(8px);
}
.hero {
    background: var(--gradient-hero); color: white; padding: 140px 0 105px;
    position: relative; overflow: hidden;
}
.hero:before {
    content: ''; position: absolute; inset: 0;
    background:
        linear-gradient(rgba(0,0,0,0.08), rgba(0,0,0,0.22)),
        url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="900" height="500" viewBox="0 0 900 500"><g fill="none" stroke="%23ffffff" stroke-opacity="0.14"><path d="M20 180 C180 80, 340 300, 520 180 S760 90, 880 210"/><path d="M60 330 C210 210, 360 430, 540 300 S760 220, 880 360"/><circle cx="180" cy="120" r="45"/><circle cx="710" cy="135" r="65"/><circle cx="610" cy="360" r="40"/></g></svg>');
    background-size: cover; background-position: center;
}
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 950px; margin: 0 auto; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 9px;
    background-color: rgba(255,255,255,0.15); backdrop-filter: blur(10px);
    padding: 10px 20px; border-radius: 999px; font-size: 1rem; margin-bottom: 28px;
    border: 1px solid rgba(255,255,255,0.22);
}
.hero h1 { font-size: 3.55rem; margin-bottom: 24px; line-height: 1.12; font-weight: 850; letter-spacing: -1.4px; }
.hero p { font-size: 1.28rem; margin: 0 auto 38px; max-width: 820px; opacity: 0.92; }
.hero-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.hero-stats { display: flex; justify-content: center; gap: 34px; margin-top: 58px; flex-wrap: wrap; }
.stat {
    min-width: 185px; text-align: center; padding: 18px; border-radius: 16px;
    background: rgba(15, 23, 42, 0.22); border: 1px solid rgba(255,255,255,0.13);
    backdrop-filter: blur(10px);
}
.stat-number { font-size: 2.15rem; font-weight: 850; }
.stat-label { font-size: 0.95rem; opacity: 0.85; }
.section-title { text-align: center; margin-bottom: 60px; }
.section-title h2 { font-size: 2.55rem; color: var(--light); margin-bottom: 18px; font-weight: 800; letter-spacing: -0.7px; }
.section-title p { color: var(--gray); max-width: 760px; margin: 0 auto; font-size: 1.1rem; }
.poles-section, .features-section, .why-section { padding: 100px 0; background-color: var(--section-bg); backdrop-filter: blur(10px); }
.poles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.pole-card {
    background-color: var(--card-bg); border-radius: 18px; padding: 38px 30px;
    box-shadow: 0 10px 28px rgba(0,0,0,0.35); border: 1px solid rgba(255,255,255,0.07);
    position: relative; overflow: hidden; transition: all 0.3s; min-height: 395px;
}
.pole-card:before { content: ''; position: absolute; inset: 0 0 auto 0; height: 5px; background: var(--gradient-primary); }
.pole-card:nth-child(2):before { background: var(--gradient-orange); }
.pole-card:nth-child(3):before { background: var(--gradient-accent); }
.pole-card:hover, .feature-card:hover, .industry-card:hover, .why-card:hover { transform: translateY(-8px); }
.pole-icon, .feature-icon, .industry-icon {
    width: 78px; height: 78px; border-radius: 22px; background: var(--gradient-primary);
    display: flex; align-items: center; justify-content: center; font-size: 31px;
    margin-bottom: 26px; box-shadow: 0 8px 18px rgba(37, 99, 235, 0.35);
}
.pole-card h3 { font-size: 1.55rem; line-height: 1.25; margin-bottom: 18px; color: white; }
.pole-card p, .split-text p, .feature-card p, .industry-card p, .why-card p { color: var(--gray); }
.mini-list, .feature-list { list-style: none; margin-top: 20px; }
.mini-list li, .feature-list li {
    display: flex; align-items: flex-start; gap: 10px; color: #dbeafe;
    font-size: 0.96rem; margin-bottom: 12px;
}
.mini-list i, .feature-list i { color: var(--accent); margin-top: 4px; font-size: 0.95rem; }
.split-section { padding: 105px 0; background-color: var(--dark); overflow: hidden; }
.split-section.alt { background-color: var(--section-bg); }
.split-content { display: flex; align-items: center; gap: 60px; }
.split-content.reverse { flex-direction: row-reverse; }
.split-text, .split-visual { flex: 1; }
.eyebrow {
    display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px;
    border-radius: 999px; color: #bfdbfe; background: rgba(59,130,246,0.12);
    border: 1px solid rgba(96,165,250,0.22); font-size: 0.92rem; font-weight: 700; margin-bottom: 18px;
}
.split-text h2 { font-size: 2.55rem; line-height: 1.15; margin-bottom: 24px; color: white; font-weight: 820; letter-spacing: -0.8px; }
.split-text p { font-size: 1.08rem; margin-bottom: 20px; }
.visual-card {
    min-height: 430px; border-radius: 22px; position: relative; overflow: hidden;
    background: linear-gradient(135deg, rgba(59,130,246,0.28), rgba(139,92,246,0.28)), #020617;
    box-shadow: 0 14px 38px rgba(0,0,0,0.45);
    border: 1px solid rgba(255,255,255,0.08);
    display: flex; align-items: center; justify-content: center; padding: 34px;
}
.visual-card:before {
    content: ''; position: absolute; width: 450px; height: 450px; border-radius: 50%;
    background: radial-gradient(circle, rgba(6,182,212,0.22) 0%, transparent 62%);
    top: -120px; right: -150px;
}
.visual-card:after {
    content: ''; position: absolute; width: 320px; height: 320px; border-radius: 50%;
    background: radial-gradient(circle, rgba(249,115,22,0.18) 0%, transparent 65%);
    bottom: -120px; left: -110px;
}
.mockup, .chemical-visual-content, .process-board { position: relative; z-index: 2; }
.mockup {
    width: 100%; max-width: 460px; background: rgba(2,6,23,0.75);
    border: 1px solid rgba(255,255,255,0.11); border-radius: 18px; overflow: hidden;
    box-shadow: 0 20px 45px rgba(0,0,0,0.45);
}
.mockup-top { height: 46px; display: flex; align-items: center; gap: 8px; padding: 0 16px; background: rgba(15,23,42,0.9); border-bottom: 1px solid rgba(255,255,255,0.08); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: #ef4444; }
.dot:nth-child(2) { background: #f59e0b; }
.dot:nth-child(3) { background: #22c55e; }
.mockup-body { padding: 20px; }
.mockup-line { height: 12px; border-radius: 999px; background: rgba(148,163,184,0.24); margin-bottom: 14px; }
.mockup-line.big { width: 76%; height: 18px; background: linear-gradient(90deg, rgba(59,130,246,0.85), rgba(139,92,246,0.85)); }
.mockup-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 20px; }
.mockup-box { min-height: 88px; border-radius: 14px; background: rgba(30,41,59,0.85); border: 1px solid rgba(255,255,255,0.06); padding: 14px; }
.mockup-box i { font-size: 22px; color: var(--accent); margin-bottom: 12px; }
.mockup-box span { display: block; height: 9px; border-radius: 999px; background: rgba(148,163,184,0.28); margin-bottom: 8px; }
.chemical-visual-content { text-align: center; max-width: 430px; }
.chemical-icon-main { width: 120px; height: 120px; border-radius: 34px; margin: 0 auto 24px; background: var(--gradient-orange); display: flex; align-items: center; justify-content: center; font-size: 50px; box-shadow: 0 20px 45px rgba(249,115,22,0.25); }
.chemical-visual-content h3 { font-size: 1.55rem; margin-bottom: 14px; color: white; }
.chemical-visual-content p { color: var(--gray); margin-bottom: 24px; }
.chemical-tags { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
.chemical-tags span { padding: 8px 13px; border-radius: 999px; background: rgba(15,23,42,0.78); border: 1px solid rgba(255,255,255,0.09); color: #e5e7eb; font-size: 0.9rem; }
.process-step { display: flex; align-items: center; gap: 16px; background: rgba(15,23,42,0.78); border: 1px solid rgba(255,255,255,0.09); border-radius: 16px; padding: 18px; margin-bottom: 16px; box-shadow: 0 8px 20px rgba(0,0,0,0.24); }
.process-number { width: 46px; height: 46px; border-radius: 14px; background: var(--gradient-primary); display: flex; align-items: center; justify-content: center; font-weight: 850; flex-shrink: 0; }
.process-step h4 { font-size: 1.05rem; color: white; margin-bottom: 2px; }
.process-step p { font-size: 0.9rem; color: var(--gray); }
.cta-section { padding: 105px 0; background: var(--gradient-hero); color: white; text-align: center; position: relative; overflow: hidden; }
.cta-section:before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 20% 35%, rgba(255,255,255,0.16), transparent 28%), radial-gradient(circle at 80% 70%, rgba(255,255,255,0.12), transparent 30%); }
.cta-content { position: relative; z-index: 2; max-width: 830px; margin: 0 auto; }
.cta-section h2 { font-size: 2.65rem; margin-bottom: 20px; font-weight: 830; letter-spacing: -0.8px; }
.cta-section p { max-width: 720px; margin: 0 auto 38px; font-size: 1.18rem; opacity: 0.92; }
footer { background-color: var(--darker); color: white; padding: 78px 0 28px; border-top: 1px solid rgba(255,255,255,0.06); }
.footer-content { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 46px; }
.footer-column h3 { margin-bottom: 22px; font-size: 1.22rem; color: white; }
.footer-about p, .footer-links a, .copyright { color: #94a3b8; }
.footer-about p { margin-bottom: 20px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 12px; }
.footer-links a { text-decoration: none; transition: color 0.3s; }
.footer-links a:hover { color: white; }
.social-links { display: flex; gap: 14px; }
.social-links a { width: 40px; height: 40px; background-color: rgba(255,255,255,0.1); border-radius: 50%; color: white; display: flex; align-items: center; justify-content: center; text-decoration: none; transition: all 0.3s; }
.social-links a:hover { background-color: var(--primary); transform: translateY(-3px); }
.email-contact { display: inline-flex; align-items: center; gap: 8px; }
.copyright { text-align: center; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 0.95rem; }

/* Page logiciel */
.industries-grid, .features-grid, .why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.features-grid { grid-template-columns: repeat(4, 1fr); }
.industry-card, .feature-card, .why-card {
    background: rgba(30,41,59,0.55); border: 1px solid rgba(255,255,255,0.07);
    border-radius: 18px; padding: 30px 22px; text-align: center;
    box-shadow: 0 8px 22px rgba(0,0,0,0.28); transition: all 0.3s;
}
.industry-icon, .feature-icon { margin: 0 auto 22px; width: 70px; height: 70px; border-radius: 50%; font-size: 27px; }
.industry-card h3, .feature-card h3, .why-card h3 { font-size: 1.15rem; margin-bottom: 12px; color: white; }
.lab-gallery-section { padding: 80px 0; background-color: var(--dark); }
.lab-gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.lab-gallery-item { border-radius: 16px; overflow: hidden; position: relative; box-shadow: 0 10px 25px rgba(0,0,0,0.5); }
.lab-gallery-item img, .image-card img { width: 100%; height: 260px; object-fit: cover; display: block; filter: brightness(0.74); transition: transform 0.5s ease; }
.lab-gallery-item:hover img { transform: scale(1.05); }
.lab-gallery-caption { position: absolute; left: 16px; bottom: 16px; padding: 7px 13px; border-radius: 999px; background: rgba(15,23,42,0.85); color: #e5e7eb; font-size: 0.88rem; backdrop-filter: blur(6px); }
.image-card { border-radius: 22px; overflow: hidden; position: relative; box-shadow: 0 14px 38px rgba(0,0,0,0.45); border: 1px solid rgba(255,255,255,0.08); background: #020617; }
.image-card img { height: 450px; filter: brightness(0.55); }
.image-card-content { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 35px; color: white; }
.image-card-content i { font-size: 3.5rem; margin-bottom: 20px; }
.image-card-content h3 { font-size: 1.6rem; margin-bottom: 10px; }

@media (max-width: 1050px) {
    .poles-grid, .why-grid, .industries-grid, .features-grid { grid-template-columns: repeat(2, 1fr); }
    .split-content, .split-content.reverse { flex-direction: column; }
    .split-visual, .split-text { width: 100%; }
    .footer-content { grid-template-columns: repeat(2, 1fr); }
    .lab-gallery-grid { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
    .navbar { flex-direction: column; gap: 18px; }
    .nav-links { flex-wrap: wrap; justify-content: center; gap: 12px; }
    .nav-links li { margin-left: 0; }
    .hero { padding: 110px 0 80px; }
    .hero h1 { font-size: 2.45rem; }
    .hero p { font-size: 1.08rem; }
    .section-title h2, .split-text h2, .cta-section h2 { font-size: 2rem; }
    .poles-grid, .why-grid, .industries-grid, .features-grid { grid-template-columns: 1fr; }
    .visual-card { min-height: 330px; }
    .image-card img { height: 320px; }
}
@media (max-width: 560px) {
    .footer-content { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; }
    .cta-button-large, .secondary-button { justify-content: center; width: 100%; }
    .stat { width: 100%; }
}