/* VAUCLEN — feuille de style unique.
   Zéro dépendance externe : pas de fonts distantes, pas de framework. */

:root {
  --ink: #182338;
  --ink-soft: #46516b;
  --paper: #fcfbf8;
  --paper-alt: #f4f2ec;
  --rule: #ddd8cd;
  --accent: #1f4e8c;
  --accent-dark: #173c6d;
  --max: 68rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
}

h1, h2, h3 {
  font-family: "Charter", "Iowan Old Style", "Palatino", Georgia, serif;
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
  margin: 0 0 0.75rem;
}

h1 { font-size: clamp(1.9rem, 4.5vw, 2.9rem); letter-spacing: -0.01em; }
h2 { font-size: 1.55rem; }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1rem; }

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent-dark); }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 0.6rem 1rem;
  z-index: 10;
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---- En-tête ---- */

.site-header {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
}
.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 1.1rem;
  padding-bottom: 1.1rem;
}
.wordmark {
  font-family: "Charter", "Iowan Old Style", Georgia, serif;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
}
.wordmark:hover { color: var(--ink); }
.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
}
.site-nav a:hover { color: var(--accent-dark); text-decoration: underline; }

/* ---- Sections ---- */

section { padding: 3.5rem 0; }
section + section { border-top: 1px solid var(--rule); }

.hero { padding: 5rem 0 4.5rem; }
.hero .lede {
  font-size: 1.2rem;
  color: var(--ink-soft);
  max-width: 44rem;
  margin-bottom: 2rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 2rem;
}
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 0.7rem 1.4rem;
  border-radius: 3px;
  font-weight: 600;
}
.btn:hover { background: var(--accent-dark); color: #fff; }
.btn-secondary {
  background: transparent;
  color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}
.btn-secondary:hover { background: var(--paper-alt); color: var(--accent-dark); }

.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}
.trust-list li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 700;
  margin-right: 0.45rem;
}

.identity-bar {
  background: var(--paper-alt);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 0.85rem 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
}
.identity-bar .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.35rem 1.5rem;
}
.identity-bar p { margin: 0; }

.kicker {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

/* ---- Offre ---- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}
.card {
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 1.5rem;
}
.card h3 { margin-bottom: 0.5rem; }
.card p { color: var(--ink-soft); font-size: 0.98rem; margin-bottom: 0.75rem; }
.card .price {
  font-size: 0.9rem;
  color: var(--ink);
  font-weight: 600;
  border-top: 1px solid var(--rule);
  padding-top: 0.75rem;
  margin: 0;
}
#realisations .cards { grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); }
#realisations .card h3 a { text-decoration-thickness: 1px; }
.featured-demos { grid-template-columns: repeat(3, 1fr); }
.featured-card { border-top: 3px solid var(--accent); }
.card-label {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.demo-catalogue {
  margin-top: 1.5rem;
  border-top: 1px solid var(--rule);
  padding-top: 1.25rem;
}
.demo-catalogue summary {
  color: var(--accent);
  cursor: pointer;
  font-weight: 700;
}
.demo-catalogue summary:hover { color: var(--accent-dark); }

.aside-note {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--paper-alt);
  border-left: 3px solid var(--accent);
  font-size: 0.98rem;
}

/* ---- Méthode ---- */

.method-list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 24rem), 1fr));
  gap: 1.5rem 3rem;
}
.method-list li { padding-left: 0; }
.method-list h3 { margin-bottom: 0.35rem; }
.method-list p { color: var(--ink-soft); font-size: 0.98rem; margin: 0; }

/* ---- Marchés publics ---- */

.facts {
  margin: 1.25rem 0 0;
  padding-left: 1.2rem;
}
.facts li { margin-bottom: 0.5rem; }

/* ---- Contact ---- */

.contact-block {
  background: var(--ink);
  color: #e9ecf2;
}
.contact-block h2, .contact-block h3 { color: #fff; }
.contact-block a { color: #aecbf2; }
.contact-block a:hover { color: #fff; }
.contact-block .btn { background: #fff; color: var(--ink); }
.contact-block .btn:hover { background: var(--paper-alt); color: var(--ink); }
.contact-block p { color: #c4cbd9; }
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
}

/* ---- Pied de page ---- */

.site-footer {
  border-top: 1px solid var(--rule);
  padding: 1.5rem 0 2rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  justify-content: space-between;
}
.site-footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-footer a { color: var(--ink-soft); }

/* ---- Pages annexes ---- */

.page-main { padding: 3rem 0 4rem; }
.page-main h1 { font-size: 2rem; margin-bottom: 1.5rem; }
.page-main h2 { font-size: 1.25rem; margin-top: 2rem; }
.page-main .todo {
  background: var(--paper-alt);
  border-left: 3px solid #b3823a;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
}

@media (max-width: 40rem) {
  section { padding: 2.5rem 0; }
  .hero { padding: 3rem 0; }
}

@media (max-width: 56rem) {
  .featured-demos { grid-template-columns: 1fr; }
}