:root {
  --navy-0: #071526;
  --navy-1: #0b2545;
  --navy-2: #123a6b;
  --blue: #1d4ed8;
  --blue-light: #3b82f6;
  --grey-bg: #f3f5f8;
  --grey-border: #e2e6eb;
  --text: #16212e;
  --text-dim: #5a6a7a;
  --white: #ffffff;
  --radius: 12px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Header / Nav --- */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy-0);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: .3px;
}
.brand img { width: 38px; height: 38px; object-fit: contain; border-radius: 8px; background: #fff; padding: 2px; }
nav.main-nav { display: flex; gap: 6px; }
nav.main-nav a {
  color: #c7d2e0;
  font-size: 14.5px;
  font-weight: 600;
  padding: 9px 14px;
  border-radius: 20px;
  transition: all .2s ease;
}
nav.main-nav a:hover, nav.main-nav a.active {
  background: rgba(59,130,246,0.15);
  color: #fff;
}
.nav-cta {
  background: var(--blue);
  color: #fff !important;
  padding: 9px 18px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 14px;
}
.burger { display: none; background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; }

@media (max-width: 760px) {
  nav.main-nav { display: none; flex-direction: column; width: 100%; padding: 10px 0 16px; gap: 2px; }
  nav.main-nav.open { display: flex; }
  .nav-row { flex-wrap: wrap; }
  .burger { display: block; }
}

/* --- Hero --- */
.hero {
  background: linear-gradient(160deg, var(--navy-0), var(--navy-1) 60%, var(--navy-2));
  color: #fff;
  padding: 70px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.06) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse at 30% 20%, rgba(0,0,0,0.9), transparent 70%);
}
.hero-inner { position: relative; z-index: 1; max-width: 700px; }
.eyebrow {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--blue-light);
  background: rgba(59,130,246,0.12);
  border: 1px solid rgba(59,130,246,0.35);
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 18px;
}
.hero h1 { font-size: 38px; font-weight: 800; margin: 0 0 16px; line-height: 1.2; }
.hero p.lead { font-size: 17px; color: #c7d2e0; margin: 0 0 28px; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 30px; font-weight: 700; font-size: 14.5px;
  transition: transform .15s ease, box-shadow .25s ease; cursor: pointer; border: none;
}
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 8px 24px rgba(29,78,216,0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(29,78,216,0.45); }
.btn-outline { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.3); }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.06); }

/* --- Sections --- */
section { padding: 70px 0; }
section.alt { background: var(--grey-bg); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.section-head .eyebrow { background: rgba(29,78,216,0.08); color: var(--blue); border-color: rgba(29,78,216,0.25); }
.section-head h2 { font-size: 30px; font-weight: 800; margin: 10px 0 10px; color: var(--navy-1); }
.section-head p { color: var(--text-dim); font-size: 15.5px; margin: 0; }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-2, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: #fff;
  border: 1px solid var(--grey-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(11,37,69,0.08); border-color: rgba(29,78,216,0.25); }
.card .icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: linear-gradient(135deg, var(--blue), var(--navy-2));
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 16px;
}
.card h3 { font-size: 17.5px; margin: 0 0 8px; color: var(--navy-1); }
.card p { font-size: 14.5px; color: var(--text-dim); margin: 0; }
.card ul { margin: 12px 0 0; padding-left: 18px; font-size: 13.5px; color: var(--text-dim); }
.card ul li { margin-bottom: 4px; }

.stats { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 24px; text-align: center; }
.stats .num { font-size: 32px; font-weight: 800; color: var(--blue); }
.stats .label { font-size: 13px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .5px; }

.cta-band {
  background: linear-gradient(135deg, var(--blue), var(--navy-1));
  color: #fff; border-radius: 20px; padding: 48px 36px; text-align: center;
}
.cta-band h2 { font-size: 26px; margin: 0 0 10px; }
.cta-band p { color: #d6e2f5; margin: 0 0 24px; }

/* --- Footer --- */
footer.site-footer { background: var(--navy-0); color: #9fb0c3; padding: 50px 0 24px; font-size: 13.5px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; margin-bottom: 30px; }
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h4 { color: #fff; font-size: 14px; margin: 0 0 14px; }
.footer-grid a { display: block; color: #9fb0c3; margin-bottom: 8px; transition: color .2s ease; }
.footer-grid a:hover { color: #fff; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.footer-brand img { width: 32px; height: 32px; border-radius: 6px; background: #fff; padding: 2px; }
.footer-brand span { color: #fff; font-weight: 800; font-size: 16px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px; text-align: center; color: #6c7f94; }

/* --- Page header (sous-pages) --- */
.page-head { background: linear-gradient(160deg, var(--navy-0), var(--navy-1)); color: #fff; padding: 46px 0; text-align: center; }
.page-head h1 { font-size: 30px; margin: 4px 0 0; }
.breadcrumb { font-size: 13px; color: #9fb0c3; }
.breadcrumb a { color: var(--blue-light); }

/* --- Contact page --- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
@media (max-width: 760px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-item { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 22px; }
.contact-item .icon { width: 44px; height: 44px; border-radius: 12px; background: rgba(29,78,216,0.08); display:flex; align-items:center; justify-content:center; font-size:20px; flex-shrink:0; }
.contact-item h4 { margin: 0 0 3px; font-size: 15px; color: var(--navy-1); }
.contact-item p, .contact-item a { margin: 0; color: var(--text-dim); font-size: 14.5px; }
.contact-item a:hover { color: var(--blue); }

.timeline { border-left: 2px solid var(--grey-border); padding-left: 24px; }
.timeline .step { margin-bottom: 28px; position: relative; }
.timeline .step::before {
  content: ""; position: absolute; left: -31px; top: 2px; width: 14px; height: 14px;
  border-radius: 50%; background: var(--blue); border: 3px solid #fff; box-shadow: 0 0 0 2px var(--blue);
}
.timeline .step h4 { margin: 0 0 4px; color: var(--navy-1); font-size: 15.5px; }
.timeline .step p { margin: 0; color: var(--text-dim); font-size: 14px; }