/* Missivia — site de présentation. Statique, sans script, sans dépendance externe. */
:root {
  --brand: #5b4be0;
  --brand-ink: #3f32b8;
  --brand-soft: #eeecfc;
  --bg: #fbfbfa;
  --surface: #ffffff;
  --ink: #17151f;
  --ink-2: #4a4757;
  --ink-3: #7c7889;
  --line: #e6e4ef;
  --code-bg: #15131f;
  --code-ink: #e8e6f5;
  --radius: 14px;
  --max: 1120px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand: #8d80f2;
    --brand-ink: #b3a9ff;
    --brand-soft: #23204a;
    --bg: #0f0e15;
    --surface: #17151f;
    --ink: #f1eff8;
    --ink-2: #c4c0d3;
    --ink-3: #8c889c;
    --line: #2a2736;
    --code-bg: #0a0910;
    --code-ink: #e8e6f5;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand-ink); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 650; }
h3 { font-size: 1.05rem; font-weight: 650; }
p { margin: 0 0 1em; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
code { background: var(--brand-soft); color: var(--brand-ink); padding: 0.1em 0.4em; border-radius: 6px; font-size: 0.92em; }
pre {
  background: var(--code-bg);
  color: var(--code-ink);
  padding: 1.1rem 1.25rem;
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 0.86rem;
  line-height: 1.55;
  margin: 0;
}
pre code { background: none; color: inherit; padding: 0; font-size: inherit; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 clamp(16px, 4vw, 32px); }
.muted { color: var(--ink-2); }
.small { font-size: 0.9rem; }

/* En-tête */
.top {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; gap: 1.5rem; height: 64px; }
.logo { display: inline-flex; align-items: center; height: 32px; }
.logo img { height: 32px; width: auto; display: block; }
nav.main { display: flex; gap: 1.25rem; margin-left: auto; font-size: 0.95rem; }
nav.main a { color: var(--ink-2); }
nav.main a:hover { color: var(--ink); text-decoration: none; }
.lang { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; font-size: 0.8rem; }
.lang a, .lang span { padding: 0.25rem 0.65rem; color: var(--ink-2); }
.lang span { background: var(--brand); color: #fff; font-weight: 600; }
.lang a:hover { text-decoration: none; background: var(--brand-soft); color: var(--brand-ink); }
@media (max-width: 720px) { nav.main { display: none; } }

/* Boutons */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.7rem 1.15rem; border-radius: 10px; font-weight: 600; font-size: 0.95rem;
  border: 1px solid transparent; transition: transform 0.12s ease, background 0.12s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn.primary { background: var(--brand); color: #fff; }
.btn.primary:hover { background: var(--brand-ink); }
.btn.ghost { background: var(--surface); color: var(--ink); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--brand); color: var(--brand-ink); }

/* Sections */
section { padding: clamp(3rem, 7vw, 6rem) 0; }
section + section { border-top: 1px solid var(--line); }
.kicker {
  display: inline-block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--brand-ink); margin-bottom: 0.75rem;
}
.lead { font-size: 1.15rem; color: var(--ink-2); max-width: 46rem; }

/* Héros */
.hero { padding-top: clamp(3.5rem, 8vw, 7rem); }
.hero .grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 3rem; align-items: center; }
.hero h1 { margin-bottom: 1rem; }
.hero h1 em { font-style: normal; color: var(--brand); }
.hero .actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.75rem; }
.hero .proof { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; font-size: 0.9rem; color: var(--ink-2); }
.hero .proof li { list-style: none; display: inline-flex; align-items: center; gap: 0.45rem; }
.hero .proof ul { display: contents; padding: 0; margin: 0; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brand); display: inline-block; }
@media (max-width: 860px) { .hero .grid { grid-template-columns: 1fr; } }

/* Cartes */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; margin-top: 2.25rem; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.35rem 1.4rem;
}
.card h3 { margin-top: 0.35rem; }
.card p { margin: 0; color: var(--ink-2); font-size: 0.95rem; }
.card .icon {
  width: 36px; height: 36px; border-radius: 10px; background: var(--brand-soft); color: var(--brand-ink);
  display: grid; place-items: center; font-weight: 700; font-size: 0.9rem;
}
@media (max-width: 960px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .cards { grid-template-columns: 1fr; } }

/* Tableau conformité */
table { width: 100%; border-collapse: collapse; margin-top: 1.75rem; font-size: 0.95rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
th, td { text-align: left; padding: 0.8rem 1rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 650; color: var(--ink-2); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; background: color-mix(in oklab, var(--brand-soft) 60%, var(--surface)); }
tr:last-child td { border-bottom: 0; }
td:first-child { font-weight: 600; white-space: nowrap; }
.table-wrap { overflow-x: auto; }

/* Deux colonnes */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }
.steps { counter-reset: step; list-style: none; padding: 0; margin: 1.5rem 0 0; display: grid; gap: 0.9rem; }
.steps li { position: relative; padding-left: 2.6rem; color: var(--ink-2); }
.steps li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 0.05rem; width: 1.8rem; height: 1.8rem; border-radius: 50%;
  background: var(--brand); color: #fff; font-weight: 700; font-size: 0.85rem; display: grid; place-items: center;
}
.steps li strong { color: var(--ink); }
.checks { list-style: none; padding: 0; margin: 1.25rem 0 0; display: grid; gap: 0.6rem; color: var(--ink-2); }
.checks li { padding-left: 1.6rem; position: relative; }
.checks li::before { content: "✓"; position: absolute; left: 0; color: var(--brand); font-weight: 700; }

/* Bandeau final */
.cta { background: var(--brand); color: #fff; border-radius: 22px; padding: clamp(2rem, 5vw, 3.5rem); display: grid; grid-template-columns: 1.4fr 1fr; gap: 2rem; align-items: center; }
.cta h2 { color: #fff; }
.cta p { color: rgba(255, 255, 255, 0.85); margin: 0; }
.cta .actions { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: flex-end; }
.cta .btn.primary { background: #fff; color: var(--brand-ink); }
.cta .btn.ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.5); }
.cta .btn.ghost:hover { border-color: #fff; color: #fff; }
@media (max-width: 860px) { .cta { grid-template-columns: 1fr; } .cta .actions { justify-content: flex-start; } }

/* Pied de page */
footer { border-top: 1px solid var(--line); padding: 2.5rem 0 3rem; color: var(--ink-3); font-size: 0.9rem; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 1rem 2rem; align-items: center; justify-content: space-between; }
footer nav { display: flex; flex-wrap: wrap; gap: 1.25rem; }
footer a { color: var(--ink-2); }

/* Page juridique */
.prose { max-width: 46rem; }
.prose h2 { font-size: 1.3rem; margin-top: 2.5rem; }
.prose dl { display: grid; grid-template-columns: max-content 1fr; gap: 0.5rem 1.5rem; }
.prose dt { color: var(--ink-3); }
.prose dd { margin: 0; }