:root {
  --ink: #111827;
  --ink-soft: #4b5563;
  --line: #e5e7eb;
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --navy: #0b1b33;
  --navy-2: #12284a;
  --blue: #1a5fb4;
  --blue-deep: #134a8e;
  --cyan: #1a5fb4;
  --radius: 6px;
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* en-tete */
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.brand img { height: 34px; width: auto; }
.nav { display: flex; gap: 28px; align-items: center; }
.nav a { color: var(--ink); font-weight: 500; font-size: 15px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--blue); text-decoration: none; }
.nav .btn { color: #fff; }
.menu-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; font: inherit; cursor: pointer; }

/* boutons */
.btn { display: inline-block; background: var(--blue); color: #fff; padding: 12px 22px; border-radius: 4px; font-weight: 600; font-size: 15px; border: 0; cursor: pointer; transition: background .15s; }
.btn:hover { background: var(--blue-deep); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--blue); border: 1.5px solid var(--blue); }
.btn-ghost:hover { background: var(--blue); color: #fff; }

/* hero */
.hero { background: var(--navy); color: #fff; padding: 104px 0 96px; border-bottom: 4px solid var(--blue); }
.hero .eyebrow { color: #9fb4d3; }
.hero .lead { color: #c9d5e6 !important; }
.hero .btn { background: #fff; color: var(--navy); }
.hero .btn:hover { background: #e8edf5; }
.hero .btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.hero .btn-ghost:hover { background: rgba(255,255,255,.1); color: #fff; }
.eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: 12px; font-weight: 600; color: var(--blue); margin: 0 0 14px; }
.hero h1 { font-size: clamp(36px, 5.5vw, 60px); line-height: 1.08; margin: 0 0 20px; letter-spacing: -.02em; max-width: 14ch; }
.hero h1 span { color: #7fb0ec; }
.hero p.lead { font-size: 20px; color: var(--ink-soft); max-width: 46ch; margin: 0 0 32px; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* sections */
section { padding: 88px 0; }
section.soft { background: var(--bg-soft); }
.section-head { max-width: 60ch; margin-bottom: 48px; }
.section-head h2 { font-size: clamp(28px, 3.6vw, 40px); line-height: 1.15; margin: 0 0 12px; letter-spacing: -.01em; }
.section-head p { color: var(--ink-soft); font-size: 18px; margin: 0; }

.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.card h3 { margin: 12px 0 8px; font-size: 21px; }
.card p { color: var(--ink-soft); margin: 0 0 16px; }
.card .tag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-soft); padding: 0; }
.card .more { font-weight: 600; }
.icon { width: 44px; height: 44px; border-radius: 8px; background: var(--navy); display: grid; place-items: center; color: #fff; font-weight: 700; font-size: 14px; }

.stat { font-size: 44px; font-weight: 700; color: var(--navy); line-height: 1; }
.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.split p { color: var(--ink-soft); font-size: 17px; }
.signature { font-weight: 600; color: var(--ink); }

.badges { display: flex; gap: 36px; align-items: center; flex-wrap: wrap; }
.badges img { height: 56px; width: auto; }
.badges img.wide { height: 30px; }
.badge-list { list-style: none; padding: 0; margin: 24px 0 0; }
.badge-list li { padding: 10px 0 10px 28px; position: relative; color: var(--ink-soft); }
.badge-list li::before { content: ""; position: absolute; left: 0; top: 19px; width: 14px; height: 2px; background: var(--blue); }

blockquote { margin: 0; font-size: 17px; color: var(--ink); }
blockquote footer { margin-top: 14px; color: var(--ink-soft); font-size: 14px; font-weight: 600; }

.cta { background: var(--navy); color: #fff; border-radius: 6px; padding: 56px; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.cta h2 { margin: 0 0 8px; font-size: 30px; }
.cta p { margin: 0; opacity: .9; }
.cta .btn { background: #fff; color: var(--blue-deep); }

/* pages interieures */
.page-hero { padding: 72px 0 56px; background: var(--navy); color: #fff; border-bottom: 4px solid var(--blue); margin-bottom: 24px; }
.page-hero .eyebrow { color: #9fb4d3; }
.page-hero h1 { font-size: clamp(32px, 4.5vw, 48px); margin: 0 0 12px; letter-spacing: -.02em; }
.page-hero p { color: #c9d5e6; font-size: 18px; max-width: 60ch; margin: 0; }
.prose { max-width: 760px; }
.prose h2 { font-size: 22px; margin: 36px 0 10px; }
.prose p, .prose li { color: var(--ink-soft); }

/* formulaire */
form .field { margin-bottom: 18px; }
label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 6px; }
input, textarea { width: 100%; font: inherit; padding: 12px 14px; border: 1px solid #cfd8e3; border-radius: 10px; background: #fff; color: var(--ink); }
input:focus, textarea:focus { outline: 2px solid rgba(22,101,201,.35); border-color: var(--blue); }
textarea { min-height: 160px; resize: vertical; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.notice { font-size: 13px; color: var(--ink-soft); }
.alert { padding: 14px 16px; border-radius: 10px; margin-bottom: 20px; font-weight: 500; }
.alert.ok { background: #e8f6ee; color: #17663a; }
.alert.ko { background: #fdecec; color: #9b1c1c; }
.contact-info p { margin: 0 0 8px; color: var(--ink-soft); }

/* pied de page */
.site-footer { background: var(--navy); padding: 56px 0 32px; margin-top: 40px; font-size: 14px; color: #a9b8cc; }
.site-footer h4 { color: #fff !important; }
.site-footer a { color: #c9d5e6 !important; }
.site-footer .legal { border-top-color: rgba(255,255,255,.12) !important; }
.site-footer .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.site-footer h4 { color: var(--ink); margin: 0 0 12px; font-size: 14px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: var(--ink-soft); }
.site-footer .legal { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

@media (max-width: 900px) {
  .grid-3, .grid-2, .split, .site-footer .cols { grid-template-columns: 1fr; }
  .split { gap: 32px; }
  .menu-toggle { display: block; }
  .nav { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: flex-start; padding: 16px 24px 24px; border-bottom: 1px solid var(--line); gap: 16px; }
  .nav.open { display: flex; }
  section { padding: 64px 0; }
  .hero { padding: 64px 0 56px; }
  .cta { padding: 36px 28px; }
}