/* Nolystral — feuille de style unique, sans police ni ressource externe (aucun traceur). */
:root {
  /* Charte Nolystral, direction « Provence technique » (D-050, docs/CHARTE.md). */
  --bg: #faf6ef; --fg: #2e3b2c; --muted: #5f6b5c; --line: #e4dccd; --card: #ffffff;
  --accent: #3e5c3a; --accent-soft: #e9efe4; --action: #c65d3b; --on-action: #ffffff;
  --warn-bg: #f6e3d6; --warn-fg: #7a3420;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --radius: 10px; --max: 1080px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1f19; --fg: #ede8dd; --muted: #a9b1a3; --line: #333b31; --card: #222821;
    --accent: #9dbf8f; --accent-soft: #263224; --action: #d9774f; --on-action: #1a1f19;
    --warn-bg: #3a2519; --warn-fg: #f0c2a8;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent); }
a:focus-visible, .btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }

.notice { background: var(--warn-bg); color: var(--warn-fg); text-align: center; font-size: .92rem; padding: 8px 16px; }

header.top { border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 14px; padding-bottom: 14px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; font: 600 1.35rem var(--serif); color: var(--fg); text-decoration: none; }
.brand img { width: 38px; height: 38px; }
nav.main a { color: var(--fg); text-decoration: none; margin-left: 18px; font-size: .95rem; }
nav.main a:hover { color: var(--accent); }
@media (max-width: 640px) { nav.main a { margin: 0 14px 0 0; } }

.hero { padding-top: 64px; padding-bottom: 48px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; }
.hero h1 { font-size: clamp(1.8rem, 4.5vw, 2.7rem); line-height: 1.18; margin: 0 0 18px; max-width: 22ch; }
.hero p.lead { font-size: 1.15rem; color: var(--muted); max-width: 60ch; margin: 0 0 28px; }
.btn { display: inline-block; background: var(--action); color: var(--on-action); text-decoration: none; font-weight: 600;
       padding: 12px 20px; border-radius: var(--radius); }
.btn.ghost { background: transparent; color: var(--accent); border: 1px solid var(--accent); margin-left: 8px; }

section { padding: 44px 0; }
section + section { border-top: 1px solid var(--line); }
h2 { font-size: 1.6rem; margin: 0 0 8px; }
.sub { color: var(--muted); margin: 0 0 28px; max-width: 65ch; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.card h3 { margin: 0 0 6px; font-size: 1.12rem; }
.card .tag { display: inline-block; font-size: .78rem; font-weight: 600; color: var(--accent); background: var(--accent-soft);
             border-radius: 999px; padding: 2px 10px; margin-bottom: 10px; }
.card p { margin: 0 0 10px; }
.card ul { margin: 0; padding-left: 1.1em; color: var(--muted); font-size: .95rem; }

.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; gap: 14px;
         grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.steps li { counter-increment: s; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.steps li::before { content: counter(s); display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%;
                    background: var(--accent); color: var(--bg); font-weight: 700; margin-bottom: 8px; font-family: var(--serif); }
.steps strong { display: block; margin-bottom: 4px; }

.points { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); padding: 0; list-style: none; margin: 0; }
.points li { padding-left: 28px; position: relative; }
.points li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

.contact { background: var(--accent-soft); border-radius: var(--radius); padding: 28px; }
.contact p { margin: 0 0 10px; }

.legal h1 { font-size: 1.9rem; margin: 40px 0 8px; }
.legal h2 { font-size: 1.2rem; margin: 30px 0 6px; }
.legal p, .legal li { max-width: 75ch; }

footer.bottom { border-top: 1px solid var(--line); color: var(--muted); font-size: .88rem; padding: 26px 0 40px; margin-top: 20px; }
footer.bottom a { color: var(--muted); margin-right: 16px; }