/* Recâble · mêmes couleurs que l'app (clair / sombre) */
:root {
  --bg: #F6F4EF;
  --surface: #FFFFFF;
  --surface-muted: #EDEAE3;
  --ink: #15233A;
  --ink-2: #5B6678;
  --sage: #5E8C6E;
  --sage-soft: #DCE8DF;
  --night: #1B2B44;
  --coral: #D9694F;
  --radius: 22px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-round: ui-rounded, "SF Pro Rounded", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0D1524;
    --surface: #16213A;
    --surface-muted: #1F2C46;
    --ink: #E9EDF3;
    --ink-2: #9AA6B8;
    --sage: #8DBA9B;
    --sage-soft: #22382C;
    --night: #2A3F63;
    --coral: #E88A72;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: var(--sage); }
h1, h2, h3 { font-family: var(--font-round); line-height: 1.2; margin: 0 0 .5em; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); font-weight: 800; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1em; }

.wrap { width: min(1100px, 100% - 32px); margin: 0 auto; }
.narrow { width: min(760px, 100% - 32px); margin: 0 auto; }
.muted { color: var(--ink-2); }
.eyebrow {
  font-family: var(--font-round); font-weight: 700; font-size: .8rem;
  letter-spacing: .1em; text-transform: uppercase; color: var(--sage); margin-bottom: .6em;
}

/* En-tête */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid color-mix(in srgb, var(--ink) 8%, transparent);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--font-round); font-weight: 800; font-size: 1.2rem; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.nav { display: flex; gap: 22px; }
.nav a { color: var(--ink-2); text-decoration: none; font-size: .95rem; font-weight: 500; }
.nav a:hover { color: var(--ink); }
@media (max-width: 760px) { .nav { display: none; } }

/* Boutons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 52px; padding: 0 24px; border-radius: 16px;
  font-family: var(--font-round); font-weight: 700; font-size: 1rem; text-decoration: none;
  border: 0; cursor: pointer;
}
.btn-primary { background: var(--sage); color: #fff; }
.btn-secondary { background: var(--surface-muted); color: var(--ink); }
.btn-soon { background: var(--night); color: #fff; cursor: default; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn-primary { color: #0D1524; } }

/* Sections */
section { padding: 88px 0; }
section.alt { background: var(--surface); }
.section-head { max-width: 680px; margin-bottom: 44px; }
.section-head p { color: var(--ink-2); font-size: 1.08rem; }

/* Héros */
.hero { padding: 64px 0 80px; }
.hero .wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero p.lead { font-size: 1.2rem; color: var(--ink-2); max-width: 560px; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 18px; }
.hero .small { font-size: .9rem; color: var(--ink-2); }
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 40px; }
  .hero .phone { margin: 0 auto; }
}

/* Cadre de téléphone */
.phone {
  width: min(300px, 78vw);
  border-radius: 46px;
  padding: 10px;
  background: #0b0f17;
  box-shadow: 0 30px 60px -20px rgba(21, 35, 58, .35), 0 0 0 1px rgba(255,255,255,.06) inset;
}
.phone img { border-radius: 37px; width: 100%; height: auto; }

/* Cartes */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
@media (max-width: 860px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }
.card { background: var(--surface); border-radius: var(--radius); padding: 26px; }
section.alt .card { background: var(--bg); }
.card .icon {
  width: 46px; height: 46px; border-radius: 50%;
  display: grid; place-items: center; background: var(--sage-soft); color: var(--sage);
  font-size: 1.3rem; margin-bottom: 14px;
}
.card p { color: var(--ink-2); margin: 0; }
.tag {
  display: inline-block; font-family: var(--font-round); font-weight: 700; font-size: .75rem;
  padding: 4px 10px; border-radius: 999px; background: var(--sage-soft); color: var(--sage); margin-bottom: 10px;
}

/* Fonctionnalités alternées */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding: 36px 0; }
.feature + .feature { border-top: 1px solid color-mix(in srgb, var(--ink) 8%, transparent); }
.feature.reverse .feature-media { order: 2; }
.feature-media { display: flex; justify-content: center; }
.feature ul { padding-left: 1.1em; color: var(--ink-2); }
.feature li { margin-bottom: .35em; }
@media (max-width: 860px) {
  .feature { grid-template-columns: 1fr; gap: 28px; }
  .feature.reverse .feature-media { order: 0; }
}

/* Science */
.refs { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.refs li { background: var(--surface); border-radius: 18px; padding: 18px 20px; }
.refs strong { display: block; font-family: var(--font-round); margin-bottom: 4px; }
.refs span { color: var(--ink-2); font-size: .95rem; }
.refs em { display: block; color: var(--sage); font-size: .85rem; margin-top: 6px; }

/* Confidentialité */
.privacy-box {
  background: var(--night); color: #E9EDF3; border-radius: 28px; padding: clamp(28px, 5vw, 56px);
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
}
.privacy-box h2 { color: #fff; }
.privacy-box p { color: #C3CBD8; }
.privacy-box ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.privacy-box li { background: rgba(255,255,255,.07); border-radius: 14px; padding: 14px 16px; }
.privacy-box a { color: #8DBA9B; }
@media (max-width: 860px) { .privacy-box { grid-template-columns: 1fr; } }

/* Tarifs */
.price-card { display: flex; flex-direction: column; }
.price-card.featured { outline: 2px solid var(--sage); }
.price { font-family: var(--font-round); font-size: 2rem; font-weight: 800; margin: 6px 0 2px; }
.price small { font-size: 1rem; font-weight: 600; color: var(--ink-2); }
.price-card ul { padding-left: 1.1em; color: var(--ink-2); margin: 14px 0 0; }
.price-card li { margin-bottom: .4em; }
.plans { display: grid; gap: 10px; margin-top: 14px; }
.plan { display: flex; justify-content: space-between; align-items: baseline; background: var(--surface-muted); border-radius: 14px; padding: 12px 14px; }
.plan b { font-family: var(--font-round); }
.plan .note { font-size: .82rem; color: var(--sage); font-weight: 600; }

/* FAQ */
details { background: var(--surface); border-radius: 18px; padding: 4px 20px; margin-bottom: 10px; }
section.alt details { background: var(--bg); }
summary { cursor: pointer; font-family: var(--font-round); font-weight: 700; padding: 16px 0; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; float: right; color: var(--sage); font-size: 1.3rem; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { color: var(--ink-2); }

/* Pied de page */
.site-footer { padding: 56px 0 40px; border-top: 1px solid color-mix(in srgb, var(--ink) 8%, transparent); font-size: .92rem; }
.site-footer .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.site-footer h4 { font-family: var(--font-round); margin: 0 0 10px; font-size: .95rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.site-footer a { color: var(--ink-2); text-decoration: none; }
.site-footer a:hover { color: var(--ink); }
.site-footer .legal { margin-top: 36px; color: var(--ink-2); font-size: .85rem; }
@media (max-width: 760px) { .site-footer .cols { grid-template-columns: 1fr; } }

/* Pages de texte (confidentialité, mentions, support) */
.doc { padding: 56px 0 80px; }
.doc h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); }
.doc h2 { font-size: 1.45rem; margin-top: 2em; }
.doc h3 { margin-top: 1.4em; }
.doc p, .doc li { color: var(--ink); }
.doc .muted, .doc em { color: var(--ink-2); }
.doc hr { border: 0; border-top: 1px solid color-mix(in srgb, var(--ink) 10%, transparent); margin: 2em 0; }
.doc table { width: 100%; border-collapse: collapse; margin: 1em 0 1.5em; font-size: .95rem; display: block; overflow-x: auto; }
.doc th, .doc td { text-align: left; padding: 10px 12px; border-bottom: 1px solid color-mix(in srgb, var(--ink) 10%, transparent); vertical-align: top; }
.doc th { font-family: var(--font-round); }
.doc ul { padding-left: 1.2em; }
.doc li { margin-bottom: .4em; }
.placeholder { background: color-mix(in srgb, var(--coral) 18%, transparent); padding: 0 4px; border-radius: 4px; }

section[id] { scroll-margin-top: 64px; }