:root {
  --bg: #ffffff;
  --bg-alt: #f6f8fa;
  --ink: #0f172a;
  --ink-soft: #475569;
  --line: #e2e8f0;
  --accent: #1b4965;
  --blue: #5aa3b5;
  --green: #38a66a;
  --amber: #f39e1f;
  --cream: #faedd3;
  --card: #e4e9ee;
  --rose: #fb7185;
  --radius: 18px;
  --shadow: 0 25px 60px -15px rgba(15, 23, 42, .22);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1620;
    --bg-alt: #131d29;
    --ink: #f1f5f9;
    --ink-soft: #a7b4c4;
    --line: #243244;
    --accent: #7fc4dc;
    --card: #2a3646;
    --shadow: 0 25px 60px -15px rgba(0, 0, 0, .6);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 1rem/1.6 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif; line-height: 1.15; margin: 0; }
a { color: var(--accent); }
.wrap { max-width: 68rem; margin: 0 auto; padding: 0 1.25rem; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; border-radius: 6px; }

/* En-tête */
header.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; height: 4rem; }
.brand { display: flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--ink); }
.logo-svg { width: 2.4rem; height: 2.4rem; display: block; }
.brand b { font: 800 1.35rem 'Plus Jakarta Sans', sans-serif; letter-spacing: -.02em; }
nav.links { display: flex; align-items: center; gap: 1.4rem; }
nav.links a { color: var(--ink-soft); text-decoration: none; font-weight: 600; font-size: .92rem; white-space: nowrap; }
nav.links a:hover { color: var(--ink); }
.tools { display: flex; align-items: center; gap: .6rem; }
select.lang { background: var(--bg-alt); color: var(--ink); border: 1px solid var(--line); border-radius: 10px;
  padding: .4rem .5rem; font: 600 .8rem 'Inter', sans-serif; cursor: pointer; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; border: 0; cursor: pointer;
  background: var(--ink); color: var(--bg); text-decoration: none; font-weight: 700; font-size: .92rem;
  padding: .65rem 1.1rem; border-radius: 12px; transition: transform .15s; }
.btn:hover { transform: translateY(-1px); }
.btn.big { padding: .9rem 1.5rem; font-size: 1rem; }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.burger { display: none; background: none; border: 0; padding: .4rem; color: var(--ink); cursor: pointer; }
.burger svg { width: 1.6rem; height: 1.6rem; display: block; }
@media (max-width: 52rem) {
  .burger { display: block; }
  nav.links { display: none; position: absolute; top: 4rem; left: 0; right: 0; flex-direction: column; align-items: stretch;
    gap: 0; background: var(--bg); border-bottom: 1px solid var(--line); padding: .5rem 1.25rem 1rem; }
  nav.links.open { display: flex; }
  nav.links a { padding: .8rem 0; border-bottom: 1px solid var(--line); }
  .tools .btn { display: none; }
}

/* Sections */
section { padding: 5rem 0; }
section.alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.eyebrow { font: 700 .75rem 'Inter', sans-serif; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
h2 { font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 800; margin-top: .5rem; letter-spacing: -.02em; }
.lead { color: var(--ink-soft); font-size: 1.08rem; max-width: 42rem; margin: 1rem 0 0; }
.center { text-align: center; }
.center .lead { margin-inline: auto; }

/* Hero */
.hero { padding: 4rem 0 3rem; }
.hero-grid { display: grid; gap: 3rem; align-items: center; grid-template-columns: 1.1fr .9fr; }
.hero h1 { font-size: clamp(2.2rem, 6vw, 3.8rem); font-weight: 800; letter-spacing: -.03em; }
.hero h1 em { font-style: normal; background: linear-gradient(transparent 68%, color-mix(in srgb, var(--amber) 55%, transparent) 68%); }
.hero p.lead { font-size: 1.2rem; }
.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-top: 2rem; }
.note { color: var(--ink-soft); font-size: .9rem; }
@media (max-width: 52rem) { .hero-grid { grid-template-columns: 1fr; text-align: center; } .hero p.lead { margin-inline: auto; } .cta { justify-content: center; } }

/* Téléphones */
.phones { display: flex; flex-wrap: wrap; gap: 2rem; justify-content: center; margin-top: 3rem; }
.phone-col { display: flex; flex-direction: column; align-items: center; gap: 1rem; max-width: 17rem; text-align: center; }
.phone-col h3 { font-size: 1.1rem; }
.phone-col p { color: var(--ink-soft); font-size: .95rem; margin: 0; }
.phone { text-align: left; position: relative; width: 15.5rem; height: 27rem; border-radius: 2.4rem; background: var(--bg); border: 6px solid var(--ink);
  box-shadow: var(--shadow); overflow: hidden; display: flex; flex-direction: column; }
.phone.hero-phone { width: 17rem; height: 30rem; margin-inline: auto; }
.app-head { display: flex; justify-content: space-between; align-items: center; padding: .9rem 1.1rem .5rem; border-bottom: 1px solid var(--line); }
.app-head b { font: 800 1.1rem 'Plus Jakarta Sans', sans-serif; display: block; line-height: 1; }
.app-head small { color: var(--ink-soft); font-size: .72rem; }
.app-head i { display: flex; gap: .6rem; color: var(--ink-soft); }
.app-head svg { width: 1.05rem; height: 1.05rem; }
.stack { position: relative; flex: 1; padding: .6rem; }
.art { position: absolute; inset: .6rem; background: var(--card); border-radius: 1.6rem; padding: 1rem; overflow: hidden; }
.art.back { transform: scale(.94) translateY(.5rem); opacity: .6; }
.art h4 { margin: 0; font: 800 .8rem/1.3 'Plus Jakarta Sans', sans-serif; }
.art .meta { margin: .45rem 0 0; font-size: .66rem; color: var(--ink-soft); font-weight: 600; }
.art .abs { margin: .6rem 0 0; font-size: .66rem; color: var(--ink-soft); line-height: 1.5; }
.tag { position: absolute; top: 50%; padding: .15rem .8rem; border-radius: 999px; color: #fff; font: 700 1.3rem/1.4 'Inter', sans-serif;
  transform: translateY(-50%); box-shadow: 0 6px 16px rgba(0,0,0,.2); opacity: .9; z-index: 2; }
.tag.left { left: .35rem; background: var(--rose); }
.tag.right { right: .35rem; background: var(--green); }
.art.tilt-l { transform: translate(-12%, .3rem) rotate(-5deg); }
.art.tilt-r { transform: translate(12%, .3rem) rotate(5deg); }
.sheet { position: absolute; left: 0; right: 0; bottom: 0; background: var(--bg); border-top: 1px solid var(--line);
  border-radius: 1.4rem 1.4rem 0 0; padding: .9rem 1rem 1.1rem; box-shadow: 0 -10px 30px rgba(0,0,0,.18); }
.sheet .grip { width: 2.2rem; height: .25rem; border-radius: 9px; background: var(--line); margin: 0 auto .7rem; }
.sheet ul { list-style: none; margin: 0; padding: 0; }
.sheet li { display: flex; align-items: center; gap: .6rem; padding: .55rem .3rem; font-size: .8rem; font-weight: 600; border-bottom: 1px solid var(--line); }
.sheet li:last-child { border: 0; }
.badge-ex { position: absolute; top: .55rem; right: .8rem; z-index: 2; font: 700 .6rem 'Inter', sans-serif; letter-spacing: .08em;
  text-transform: uppercase; color: var(--ink-soft); }

/* Grilles de contenu */
.two { display: grid; gap: 1.5rem; grid-template-columns: 1fr 1fr; margin-top: 2.5rem; }
.cards { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); margin-top: 2.5rem; }
.box { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
section.alt .box { background: var(--bg); }
.box h3 { font-size: 1.1rem; margin-bottom: .5rem; }
.box p { margin: 0; color: var(--ink-soft); font-size: .97rem; }
.box ul { margin: .5rem 0 0; padding-left: 1.1rem; color: var(--ink-soft); font-size: .97rem; }
.box li { margin: .35rem 0; }
.box.no { border-top: 4px solid var(--rose); }
.box.yes { border-top: 4px solid var(--green); }
.box.mid { border-top: 4px solid var(--amber); }
.dot { display: inline-block; width: .7rem; height: .7rem; border-radius: 50%; margin-right: .5rem; }
@media (max-width: 52rem) { .two { grid-template-columns: 1fr; } }

/* Pied de page */
footer { padding: 2.5rem 0; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: .85rem; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; align-items: center; }
footer nav { display: flex; flex-wrap: wrap; gap: 1.25rem; }
footer a { color: var(--ink-soft); }
footer a:hover { color: var(--ink); }

/* Démonstration au défilement (ajoutée par site.js, bureau uniquement) */
.phones.scrolly { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; justify-content: stretch; }
.scrolly .stage { position: sticky; top: 6rem; height: 30rem; }
.scrolly .step-phone { position: absolute; left: 50%; top: 0; margin-left: -7.75rem; opacity: 0; transform: translateY(1.5rem) scale(.96);
  transition: opacity .45s ease, transform .45s ease; }
.scrolly .step-phone.on { opacity: 1; transform: none; }
.scrolly .steps { display: flex; flex-direction: column; }
.scrolly .phone-col { max-width: none; min-height: 32rem; justify-content: center; align-items: flex-start; text-align: left;
  opacity: .3; transition: opacity .35s ease; }
.scrolly .phone-col.on { opacity: 1; }
.scrolly .phone-col h3 { font-size: 1.6rem; }
.scrolly .phone-col p { font-size: 1.1rem; max-width: 26rem; }

/* Choix de la spécialité et des revues */
.phones.pick { margin-top: 3rem; }
.swipe-h { font-size: clamp(1.3rem, 3vw, 1.7rem); font-weight: 800; margin-top: 4.5rem; }
.plist { list-style: none; margin: 0; padding: .4rem 0; flex: 1; }
.plist li { display: flex; align-items: center; gap: .7rem; padding: .7rem 1.1rem; font-size: .82rem; font-weight: 600; border-bottom: 1px solid var(--line); }
.plist li.sel { background: color-mix(in srgb, var(--blue) 22%, transparent); }
.plist li small { display: block; color: var(--ink-soft); font-weight: 400; font-size: .68rem; }
.cb { flex: none; width: 1.15rem; height: 1.15rem; border-radius: .3rem; border: 2px solid var(--ink-soft); display: grid; place-items: center; color: #fff; }
.cb svg { width: .8rem; height: .8rem; }
.plist li.on .cb { background: var(--accent); border-color: var(--accent); }
.follow { padding: .8rem 1rem 1.1rem; }
.follow span { display: block; text-align: center; background: var(--accent); color: var(--bg); border-radius: 999px; padding: .6rem; font-size: .8rem; font-weight: 700; }
.pick .app-head { padding-top: 1.5rem; }

/* Reproduit l'app réelle : en-tête sobre, feuille d'actions sur voile, boutons de bas d'écran */
.scrim { position: absolute; inset: 0; background: rgba(15, 23, 42, .4); }
.app-head.plain { align-items: baseline; border: 0; padding-top: 1.5rem; }
.app-head.plain b { font-size: 1.15rem; }
.app-head.plain u, .follow u { text-decoration: none; color: var(--accent); font-weight: 700; font-size: .74rem; }
.prof { padding: 0 1.1rem .5rem; border-bottom: 1px solid var(--line); font-size: .72rem; }
.prof p { margin: 0 0 .4rem; font-weight: 600; }
.radios { display: flex; align-items: center; gap: .35rem; margin-bottom: .3rem; }
.radios i { width: .85rem; height: .85rem; border-radius: 50%; border: 2px solid var(--ink-soft); display: inline-block; }
.radios i + span { margin-right: .7rem; }
.plist li.sel { background: none; }
.follow { display: flex; align-items: center; justify-content: space-between; gap: .4rem; }
.follow span { display: inline-block; padding: .6rem .9rem; }
.phones.pick .phone-col { width: 17rem; } .phone-col .phone { flex: none; }
.phones.pick { display: grid; grid-template-columns: repeat(auto-fit, 17rem); justify-content: center; } .phones.pick .phone-col { width: auto; max-width: none; }
.art .meta.au { margin-top: .15rem; font-weight: 400; }