/* =========================
   RESET & BASE
========================= */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background-color: #f4f6f8;
  color: #1f2933;
  line-height: 1.65;
}

/* =========================
   TYPOGRAPHIE
========================= */
h1, h2, h3 {
  color: #0b2a4a;
  margin-bottom: 0.6em;
}

h1 {
  font-size: 2.1rem;
}

h2 {
  font-size: 1.4rem;
  margin-top: 1.8em;
}

h3 {
  font-size: 1.1rem;
  margin-top: 1.2em;
}

p {
  margin-bottom: 1em;
  max-width: 900px;
}

/* =========================
   HEADER / HERO
========================= */
.site-header {
  background: linear-gradient(135deg, #0b2a4a, #123d6a);
  color: #ffffff;
}

.hero {
  padding: 60px 20px;
}

.hero-content {
  max-width: 1100px;
  margin: 0 auto;
}

.hero h1 {
  color: #ffffff;
}

.hero p {
  font-size: 1.05rem;
  opacity: 0.95;
}

.btn {
  margin-top: 20px;
  background: #ffffff;
  color: #0b2a4a;
  border: none;
  padding: 10px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
}

/* =========================
   CONTENU PRINCIPAL
========================= */
main {
  max-width: 1100px;
  margin: 40px auto;
  padding: 0 20px;
}

/* =========================
   CARTES / BLOCS
========================= */
section,
.box,
.highlight {
  background: #ffffff;
  border-radius: 12px;
  padding: 24px 26px;
  margin-bottom: 26px;
  border: 1px solid #e1e7ee;
}

.box {
  background: #f8fafc;
}

.highlight {
  border-left: 5px solid #0b2a4a;
}

/* =========================
   LISTES
========================= */
ul {
  margin: 12px 0 12px 20px;
}

li {
  margin-bottom: 6px;
}

/* =========================
   TABLEAUX
========================= */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

th, td {
  border: 1px solid #e1e7ee;
  padding: 10px 14px;
}

th {
  background: #f1f4f8;
  text-align: left;
  color: #0b2a4a;
}

/* =========================
   FOOTER
========================= */
.main-footer {
  background: #0b2a4a;
  color: #ffffff;
  padding: 30px 20px;
  margin-top: 60px;
}

.footer-content {
  max-width: 1100px;
  margin: 0 auto;
}

.footer-links {
  list-style: none;
  display: flex;
  gap: 20px;
  margin: 12px 0;
}

.footer-links a {
  color: #ffffff;
  text-decoration: underline;
}

.footer-copy {
  font-size: 0.85rem;
  opacity: 0.85;
}

/* =========================
   PRINT (PDF)
========================= */
@media print {
  body {
    background: #ffffff;
  }

  .site-header,
  .btn,
  nav,
  .tabs {
    display: none !important;
  }

  main {
    margin: 0;
    padding: 40px;
  }

  section {
    page-break-inside: avoid;
  }
}