/* Transfert Wi-Fi — site vitrine (FR/EN). Aucune dépendance, aucun traceur. */
:root {
  --bg: #f6f8fb; --surface: #ffffff; --text: #14212b; --muted: #55656f; --line: #dfe6ec;
  --brand: #0A7FB0; --brand-dark: #00506F; --accent: #9EF2E4; --on-brand: #ffffff;
  --radius: 18px; --max: 1080px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d151b; --surface: #15212a; --text: #e6eef3; --muted: #9db0bc; --line: #24343f;
    --brand: #4fb8e3; --brand-dark: #0A7FB0; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--brand); }
img { max-width: 100%; height: auto; display: block; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* En-tête */
.top { display: flex; align-items: center; gap: 12px; padding: 18px 0; }
.top .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; text-decoration: none; color: var(--text); }
.top .brand img { width: 36px; height: 36px; border-radius: 9px; }
.top .spacer { flex: 1; }
.top .lang { font-size: 15px; text-decoration: none; border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; color: var(--muted); }

/* Bandeau principal */
.hero {
  background: linear-gradient(135deg, #0A7FB0, #00506F); color: var(--on-brand);
  border-radius: 28px; padding: 48px 40px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: center;
}
.hero h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.15; margin: 0 0 14px; }
.hero p { font-size: 19px; margin: 0 0 24px; opacity: .92; }
.hero .shot { justify-self: center; max-width: 300px; border-radius: 22px; box-shadow: 0 20px 50px rgba(0, 0, 0, .35); }
.store {
  display: inline-flex; align-items: center; gap: 10px; background: #000; color: #fff; text-decoration: none;
  padding: 12px 22px; border-radius: 12px; font-weight: 600; font-size: 17px; border: 1px solid rgba(255, 255, 255, .3);
}
.store svg { width: 24px; height: 24px; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; padding: 0; list-style: none; }
.badges li { background: rgba(255, 255, 255, .14); border-radius: 999px; padding: 4px 12px; font-size: 14px; }

/* Sections */
section { padding: 56px 0 8px; }
h2 { font-size: 28px; margin: 0 0 20px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: s; padding: 0; list-style: none; }
.steps li, .card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.steps li::before {
  counter-increment: s; content: counter(s); display: grid; place-items: center; width: 36px; height: 36px;
  border-radius: 50%; background: var(--brand); color: #fff; font-weight: 700; margin-bottom: 10px;
}
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
.wide { border-radius: var(--radius); border: 1px solid var(--line); box-shadow: 0 12px 34px rgba(0, 0, 0, .12); }
.phones { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.phones img { border-radius: 18px; box-shadow: 0 10px 28px rgba(0, 0, 0, .15); }
details { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 14px 18px; margin-bottom: 10px; }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin: 10px 0 0; }

footer { margin: 64px 0 0; padding: 28px 0 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 15px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 22px; }

/* Page de texte (politique de confidentialité) */
.doc { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px clamp(18px, 4vw, 44px); max-width: 820px; margin: 12px auto 0; }
.doc h1 { font-size: 30px; margin-top: 0; }
.doc li { margin-bottom: 8px; }

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; padding: 32px 22px; }
  .hero .shot { max-width: 240px; }
  .steps, .grid, .phones { grid-template-columns: 1fr; }
  .phones img { max-width: 300px; margin: 0 auto; }
}