:root {
  --bg: #ffffff;
  --bg-alt: #f2f8f7;
  --card: #ffffff;
  --text: #14232b;
  --muted: #55656d;
  --line: #dbe7e5;
  --accent: #0e9f95;
  --accent-2: #2fc979;
  --accent-ink: #ffffff;
  --radius: 18px;
  --max: 920px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1517;
    --bg-alt: #111d20;
    --card: #142226;
    --text: #e8f1f0;
    --muted: #9db0b3;
    --line: #223439;
    --accent: #38c7b9;
    --accent-2: #4fdc8b;
    --accent-ink: #062321;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--accent); color: var(--accent-ink); padding: 8px 14px; border-radius: 0 0 10px 0; z-index: 10; }
.skip:focus { left: 0; }

/* En-tête */
.top { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 60px; flex-wrap: wrap; padding-top: 6px; padding-bottom: 6px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 1.15rem; letter-spacing: .2px; }
.brand img { border-radius: 9px; display: block; }
nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
nav a { color: var(--muted); text-decoration: none; padding: 8px 12px; border-radius: 999px; font-size: .95rem; }
nav a:hover { color: var(--text); background: var(--bg-alt); }
nav a[aria-current="page"] { color: var(--text); background: var(--bg-alt); font-weight: 600; }
nav a.lang { border: 1px solid var(--line); font-weight: 600; font-size: .8rem; letter-spacing: .06em; margin-left: 4px; }

/* Accueil */
.hero { background: radial-gradient(1100px 420px at 50% -10%, color-mix(in srgb, var(--accent-2) 22%, transparent), transparent 70%), var(--bg); text-align: center; padding: 56px 0 44px; }
.hero-in { display: flex; flex-direction: column; align-items: center; }
.app-icon { border-radius: 28px; box-shadow: 0 18px 40px rgba(14, 159, 149, .28), 0 2px 8px rgba(0,0,0,.12); margin-bottom: 26px; }
h1 { font-size: clamp(1.9rem, 5.2vw, 3rem); line-height: 1.15; letter-spacing: -.02em; margin: 0 0 16px; text-wrap: balance; }
h2 { font-size: clamp(1.3rem, 3.4vw, 1.7rem); line-height: 1.25; letter-spacing: -.01em; margin: 0 0 14px; }
h3 { font-size: 1.05rem; margin: 0 0 6px; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 40em; margin: 0 auto 22px; text-wrap: pretty; }
.cta { margin: 0 0 10px; }
.badge { display: inline-block; padding: 13px 26px; border-radius: 999px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: var(--accent-ink); font-weight: 700; }
.note { color: var(--muted); font-size: .92rem; margin: 6px 0 0; }
.block { padding-top: 40px; padding-bottom: 40px; }
.block.alt { background: var(--bg-alt); max-width: none; }
.block.alt > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
.cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; }
.cards li { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.cards p { margin: 0; color: var(--muted); font-size: .96rem; }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.ticks li { position: relative; padding-left: 30px; }
.ticks li::before { content: ""; position: absolute; left: 0; top: .45em; width: 18px; height: 18px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath d='M9 0a9 9 0 100 18A9 9 0 009 0zm4.2 6.9l-4.7 5a.8.8 0 01-1.1 0L4.8 9.3a.8.8 0 111.1-1.1l1.9 1.9 4.1-4.4a.8.8 0 011.2 1.1z'/%3E%3C/svg%3E") center / contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath d='M9 0a9 9 0 100 18A9 9 0 009 0zm4.2 6.9l-4.7 5a.8.8 0 01-1.1 0L4.8 9.3a.8.8 0 111.1-1.1l1.9 1.9 4.1-4.4a.8.8 0 011.2 1.1z'/%3E%3C/svg%3E") center / contain no-repeat; }
[dir="rtl"] .ticks li { padding-left: 0; padding-right: 30px; }
.btn { display: inline-block; padding: 12px 22px; border-radius: 999px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: var(--accent-ink); font-weight: 700; text-decoration: none; }
.btn:hover { filter: brightness(1.05); }

/* Pages de texte */
.doc { max-width: 760px; }
.doc h1 { text-align: left; margin-top: 8px; }
.doc .lead { margin-left: 0; }
.doc h2 { margin-top: 34px; }
.doc ul { padding-left: 1.2em; }
.doc li { margin: 6px 0; }
.meta { color: var(--muted); font-size: .92rem; margin-top: -4px; }
.summary { background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius); padding: 6px 20px 8px; margin: 18px 0 6px; }
.summary h2 { margin-top: 14px; }
details { border: 1px solid var(--line); border-radius: 14px; padding: 4px 16px; margin: 10px 0; background: var(--card); }
details[open] { padding-bottom: 6px; }
summary { cursor: pointer; font-weight: 600; padding: 10px 0; list-style-position: outside; }
details p { margin: 4px 0 10px; color: var(--muted); }

/* Pied de page */
.foot { border-top: 1px solid var(--line); padding: 26px 0 40px; color: var(--muted); font-size: .92rem; text-align: center; margin-top: 20px; }
.foot p { margin: 4px 0; }
.foot a { color: var(--muted); }

@media (max-width: 520px) {
  body { font-size: 16.5px; }
  .hero { padding: 40px 0 32px; }
  .bar { justify-content: center; }
}
@media (prefers-reduced-motion: no-preference) {
  .btn, nav a { transition: filter .15s ease, background .15s ease; }
}