:root {
  --bg: #0a1226;
  --bg-alt: #0d1830;
  --panel: #111e3b;
  --line: #22335c;
  --text: #e8eefc;
  --muted: #a9b6d3;
  --cyan: #22d3ee;
  --orange: #ff7a2f;
  --font: "Space Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5.5rem; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
}
img { max-width: 100%; display: block; }
a { color: var(--cyan); }
a:hover { color: #67e8f9; }
:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; }

.wrap { width: min(100% - 2.5rem, 68rem); margin-inline: auto; }

.skip {
  position: absolute; left: -999px; top: 0;
  background: var(--cyan); color: #04101f; padding: .6rem 1rem; z-index: 100;
}
.skip:focus { left: 0; }

/* En-tête */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 18, 38, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem 1.5rem; padding-block: .7rem; }
.brand { display: flex; align-items: center; gap: .75rem; color: var(--text); text-decoration: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-size: 1.25rem; letter-spacing: .12em; }
.brand-text span { font-size: .72rem; color: var(--muted); max-width: 22rem; }
.nav { display: flex; flex-wrap: wrap; gap: .25rem 1.4rem; list-style: none; margin: 0; padding: 0; }
.nav a { color: var(--text); text-decoration: none; font-size: .95rem; padding: .3rem 0; border-bottom: 2px solid transparent; }
.nav a:hover { border-color: var(--orange); color: var(--text); }

/* Hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero-art { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-inner { position: relative; padding-block: clamp(4rem, 12vw, 8rem); }
.eyebrow { font-family: var(--mono); font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; color: var(--cyan); margin: 0 0 1rem; }
h1, h2, h3, h4 { line-height: 1.15; margin: 0 0 1rem; font-weight: 700; }
h1 { font-size: clamp(2rem, 6vw, 3.6rem); max-width: 22ch; letter-spacing: -.01em; }
h2 { font-size: clamp(1.6rem, 4vw, 2.3rem); }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 40rem; }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }

.btn { display: inline-block; padding: .75rem 1.3rem; border-radius: 6px; font-weight: 500; text-decoration: none; border: 1px solid transparent; }
.btn-primary { background: var(--orange); color: #1a0a00; }
.btn-primary:hover { background: #ff9457; color: #1a0a00; }
.btn-ghost { border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: var(--cyan); color: var(--text); }

/* Sections */
.section { padding-block: clamp(3.5rem, 8vw, 6rem); }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.cols { display: grid; gap: 0 3rem; }
.narrow { max-width: 42rem; color: var(--muted); }
p { margin: 0 0 1rem; }
.cols p { color: var(--muted); }

.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); gap: .75rem; margin: 1.5rem 0 0; }
.facts div { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: .8rem 1rem; }
dt { font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--cyan); }
dd { margin: .2rem 0 0; }

.steps-title { margin-top: 3rem; font-size: 1.3rem; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; }
.steps li { background: var(--panel); border: 1px solid var(--line); border-top: 2px solid var(--orange); border-radius: 6px; padding: 1.1rem 1.2rem; }
.steps h4 { font-size: 1.1rem; margin: .3rem 0 .4rem; }
.steps p { color: var(--muted); font-size: .95rem; margin: 0; }
.step-n { font-family: var(--mono); font-size: .8rem; color: var(--orange); }

.logos { list-style: none; margin: 2rem 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); gap: 1rem; }
.logo-slot { display: grid; place-items: center; min-height: 6.5rem; border: 1px dashed var(--line); border-radius: 6px; color: var(--muted); font-family: var(--mono); font-size: .8rem; }

.contact-list { list-style: none; margin: 1.5rem 0 0; padding: 0; display: grid; gap: .8rem; }
.contact-list li { display: flex; flex-wrap: wrap; align-items: baseline; gap: .3rem 1.2rem; padding-bottom: .8rem; border-bottom: 1px solid var(--line); }
.label { font-family: var(--mono); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); min-width: 6.5rem; }
.contact-list a { font-size: 1.1rem; overflow-wrap: anywhere; }

/* Pied de page */
.site-footer { background: #070d1d; border-top: 1px solid var(--line); padding-block: 2.5rem; }
.footer-name { font-weight: 700; margin-bottom: 1.2rem; }
.legal { display: grid; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); gap: 1rem 2rem; margin: 0; }
.legal dd { font-family: var(--mono); font-size: .95rem; }
.copy { margin: 1.5rem 0 0; font-family: var(--mono); font-size: .8rem; color: var(--muted); }

@media (min-width: 48rem) {
  .cols { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: repeat(5, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}