/* ─── Sommaire shared styles ─────────────────────────────────
   Palette matches the app's artifact colours, which are also the
   four petals in the app icon.
   ───────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --summary:  #AF52DE;
  --audio:    #0A84FF;
  --photo:    #34C759;
  --note:     #EE7A59;
  --bg:       #0a0a0f;
  --surface:  #13131a;
  --card:     #1c1c26;
  --border:   rgba(255,255,255,0.08);
  --text:     #f0f0f5;
  --muted:    rgba(240,240,245,0.55);
  --radius:   18px;
  --font:     -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, sans-serif;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--summary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.serif { font-family: Georgia, "Times New Roman", serif; }
h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1.05; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; }
h3 { font-size: 1.12rem; font-weight: 600; }
p  { color: var(--muted); }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 760px; margin: 0 auto; padding: 0 24px; }
section { padding: 96px 0; }

.grad {
  background: linear-gradient(135deg, var(--summary), #e879f9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Nav ──────────────────────────────────────────────────── */
/* Class-scoped, not a bare `nav` selector: the legal pages' table of
   contents is also a <nav>, and a bare selector pinned it over the header. */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(10,10,15,0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  display: flex; align-items: center; gap: 11px;
  font-size: 1.12rem; font-weight: 700; color: var(--text);
}
.nav-logo:hover { text-decoration: none; }
.nav-logo img { width: 32px; height: 32px; border-radius: 9px; }
.nav-links { display: flex; align-items: center; gap: 22px; font-size: 0.9rem; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); text-decoration: none; }
@media (max-width: 560px) { .nav-links a.hide-sm { display: none; } }

/* ─── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 14px;
  font-size: 0.95rem; font-weight: 600; cursor: pointer;
  border: none; transition: transform 0.15s, opacity 0.15s;
}
.btn:hover { transform: translateY(-2px); opacity: 0.92; text-decoration: none; }
.btn-primary { background: linear-gradient(135deg, var(--summary), #e879f9); color: #fff; }
.btn-secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }

.section-label {
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--summary); margin-bottom: 14px;
}
.section-intro { max-width: 560px; }

/* ─── Footer ───────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 48px 24px; text-align: center;
  color: var(--muted); font-size: 0.85rem;
}
footer .footer-logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 10px;
}
footer .footer-logo img { width: 26px; height: 26px; border-radius: 7px; }
.footer-links { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; margin-top: 16px; }
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--text); }

/* ─── Scroll fade-in ───────────────────────────────────────── */
/* Scoped to .js so that without JavaScript every section is simply visible,
   rather than a page of invisible content. */
.js .fade-up { opacity: 0; transform: translateY(26px); transition: opacity 0.6s ease, transform 0.6s ease; }
.js .fade-up.visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .js .fade-up { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ─── Legal pages ──────────────────────────────────────────── */
.legal { padding: 140px 0 90px; }
.legal h1 { font-size: clamp(2rem, 4vw, 2.9rem); margin-bottom: 8px; }
.legal .updated {
  display: inline-block; font-size: 0.82rem; color: var(--muted);
  border: 1px solid var(--border); border-radius: 20px;
  padding: 5px 14px; margin-bottom: 40px;
}
.legal h2 {
  font-size: 1.35rem; margin: 48px 0 14px;
  padding-top: 22px; border-top: 1px solid var(--border);
}
.legal h2:first-of-type { border-top: none; padding-top: 0; }
.legal h3 { font-size: 1.02rem; margin: 26px 0 8px; color: var(--text); }
.legal p { margin-bottom: 14px; }
.legal ul { margin: 0 0 18px 22px; }
.legal li { color: var(--muted); margin-bottom: 8px; }
.legal strong { color: var(--text); font-weight: 600; }
.legal table {
  width: 100%; border-collapse: collapse; margin: 18px 0 24px;
  font-size: 0.92rem; display: block; overflow-x: auto;
}
.legal th, .legal td {
  text-align: left; padding: 11px 14px;
  border-bottom: 1px solid var(--border);
}
.legal th { color: var(--text); font-weight: 600; white-space: nowrap; }
.legal td { color: var(--muted); }
.legal-toc {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px 26px; margin-bottom: 44px;
}
.legal-toc div {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--summary); margin-bottom: 12px;
}
.legal-toc ul { list-style: none; margin: 0; columns: 2; column-gap: 32px; }
@media (max-width: 620px) { .legal-toc ul { columns: 1; } }
.legal-toc li { margin-bottom: 7px; font-size: 0.9rem; }
.legal-toc a { color: var(--muted); }
.legal-toc a:hover { color: var(--text); }
.legal-note {
  background: rgba(175,82,222,0.08);
  border: 1px solid rgba(175,82,222,0.22);
  border-radius: var(--radius);
  padding: 20px 24px; margin: 26px 0;
}
.legal-note p:last-child { margin-bottom: 0; }