:root {
  --green: #1b7a3e;
  --green-dark: #135c2e;
  --green-light: #e8f5ec;
  --ink: #1a2e22;
  --muted: #5a6b60;
  --bg: #ffffff;
  --border: #e2e8e4;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* Header */
header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; color: var(--green-dark); text-decoration: none; }
.brand .logo-img { height: 50px; width: auto; display: block; }
nav a { color: var(--ink); text-decoration: none; margin-left: 22px; font-weight: 500; font-size: .95rem; }
nav a:hover { color: var(--green); }
nav a.active { color: var(--green-dark); font-weight: 700; }
.nav-links { display: flex; align-items: center; }
.nav-links .lang { border: 1px solid var(--border); border-radius: 6px; padding: 4px 9px; margin-left: 22px; font-weight: 700; font-size: .82rem; color: var(--green-dark); }
.nav-links .lang:hover { background: var(--green-light); color: var(--green-dark); }
@media (max-width: 640px) { .nav-links a:not(.lang) { display: none; } }

/* Hero */
.hero {
  background: linear-gradient(160deg, var(--green-light) 0%, #ffffff 70%);
  padding: 80px 0 72px;
}
.hero h1 { font-size: clamp(2rem, 5vw, 3.1rem); line-height: 1.15; color: var(--ink); max-width: 760px; }
.hero h1 .accent { color: var(--green); }
.hero p.lead { font-size: 1.2rem; color: var(--muted); margin-top: 20px; max-width: 620px; }
.cta { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 26px; border-radius: 8px;
  font-weight: 600; text-decoration: none; font-size: 1rem; transition: transform .08s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-dark); }
.btn-ghost { background: #fff; color: var(--green-dark); border: 1px solid var(--green); }
.btn-ghost:hover { background: var(--green-light); }

/* Client trust band */
.trust { padding: 32px 0; border-bottom: 1px solid var(--border); background: #fff; }
.trust .trust-title { text-align: center; color: var(--muted); font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; font-weight: 700; }
.trust .names { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 14px 34px; margin-top: 20px; }
.trust .names span { font-weight: 800; color: var(--green-dark); font-size: 1.05rem; letter-spacing: .02em; opacity: .85; }

/* Sections */
section.block { padding: 72px 0; }
.eyebrow { color: var(--green); font-weight: 700; letter-spacing: .04em; text-transform: uppercase; font-size: .8rem; }
h2.section-title { font-size: clamp(1.6rem, 4vw, 2.2rem); margin-top: 8px; }
.section-intro { color: var(--muted); max-width: 640px; margin-top: 12px; }

/* Feature grid */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 22px; margin-top: 42px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }
.card.solution { border-top: 4px solid var(--green); }
.bullets { list-style: none; margin-top: 16px; }
.bullets li { position: relative; padding-left: 24px; margin: 8px 0; color: var(--ink); font-size: .93rem; }
.bullets li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 800; }
.card {
  border: 1px solid var(--border); border-radius: 12px; padding: 26px;
  background: #fff; transition: box-shadow .15s ease, transform .15s ease;
}
.card:hover { box-shadow: 0 10px 30px rgba(27,122,62,0.08); transform: translateY(-2px); }
.card .ico { font-size: 1.8rem; }
.card h3 { margin: 14px 0 8px; font-size: 1.15rem; }
.card p { color: var(--muted); font-size: .96rem; }

/* Argument band */
.band { background: var(--green-dark); color: #fff; }
.band .grid { margin-top: 0; }
.band .stat { text-align: center; padding: 8px; }
.band .stat .n { font-size: 2.2rem; font-weight: 800; }
.band .stat .l { opacity: .85; font-size: .95rem; }

/* Contact */
.contact-box {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start;
  border: 1px solid var(--border); border-radius: 16px; padding: 40px; margin-top: 42px;
  background: var(--green-light);
}
@media (max-width: 720px) { .contact-box { grid-template-columns: 1fr; } }
.contact-form label { display: block; font-weight: 600; font-size: .9rem; color: var(--ink); margin-top: 12px; }
.contact-form label:first-of-type { margin-top: 0; }
.contact-form .opt { font-weight: 400; color: var(--muted); font-size: .82rem; }
.contact-form input, .contact-form textarea { width: 100%; margin-top: 6px; padding: 11px 13px; border: 1px solid var(--border); border-radius: 8px; font: inherit; background: #fff; color: var(--ink); }
.contact-form textarea { resize: vertical; }
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--green); outline-offset: 0; border-color: var(--green); }
.contact-form button { margin-top: 18px; width: 100%; border: none; cursor: pointer; }
.contact-form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-banner { display: none; padding: 14px 18px; border-radius: 8px; margin-bottom: 20px; font-weight: 600; }
.form-banner.ok { display: block; background: #e8f5ec; color: var(--green-dark); border: 1px solid var(--green); }
.form-banner.err { display: block; background: #fdecec; color: #a12626; border: 1px solid #e0a0a0; }
.contact-box h3 { font-size: 1.4rem; }
.contact-list { list-style: none; margin-top: 16px; }
.contact-list li { margin: 10px 0; display: flex; align-items: center; gap: 10px; }
.contact-list a { color: var(--green-dark); text-decoration: none; font-weight: 600; }
.contact-list a:hover { text-decoration: underline; }

/* Page hero (sous-pages) */
.page-head { background: linear-gradient(160deg, var(--green-light) 0%, #ffffff 70%); padding: 56px 0 44px; }
.page-head h1 { font-size: clamp(1.8rem, 4.5vw, 2.6rem); color: var(--ink); }
.page-head p { color: var(--muted); margin-top: 12px; max-width: 640px; font-size: 1.1rem; }

/* Footer */
footer { border-top: 1px solid var(--border); padding: 34px 0; color: var(--muted); font-size: .9rem; }
footer .fnav { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; }