* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: #050509;
  color: #f5f5f5;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}

a {
  color: #f5f5f5;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  padding: 20px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(5, 5, 9, 0.9);
}

.navbar {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-title {
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.8;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 18px;
  margin: 0;
  padding: 0;
  font-size: 0.9rem;
}

nav a {
  opacity: 0.8;
}

nav a:hover {
  opacity: 1;
}

main {
  flex: 1;
}

.page {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 24px 64px;
}

.page-center {
  max-width: 720px;
}
/* Réduction du gros titre de la page d’accueil */
.page-title {
  font-size: 1.6rem;     /* ↓ avant : 2.4rem */
  letter-spacing: 0.03em; /* ↓ avant : 0.08em */
  margin-bottom: 6px;     /* ↓ un peu */
}

/* Réduction du sous-titre */
.page-subtitle {
  font-size: 0.9rem;    /* ↓ avant : 1rem */
  margin-bottom: 20px;  /* ↓ (optionnel) */
}
/* Réduction du bloc d’accueil */
.home-hero {
  padding-top: 40px;   /* ↓ avant c’était sûrement plus */
  padding-bottom: 40px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.btn {
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.15);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: transparent;
  color: #f5f5f5;
  border: 1px solid rgba(255,255,255,0.2);
}

.btn-outline {
  background: transparent;
}

.btn span.arrow {
  font-size: 1.1rem;
}

.tagline {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  opacity: 0.7;
  margin-bottom: 12px;
}

.featured-letter {
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: radial-gradient(circle at top, rgba(255,255,255,0.06), transparent 55%);
  padding: 24px 20px 26px;
}

.featured-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  opacity: 0.7;
  margin-bottom: 12px;
}

.featured-title {
  font-size: 1.1rem;
  margin-bottom: 16px;
  font-weight: 600;
}

.letter-body p {
  margin: 0 0 10px;
}

.letter-body p:last-child {
  margin-bottom: 0;
}

.letter-signature {
  margin-top: 18px;
  font-style: italic;
  opacity: 0.9;
}

.section-title {
  font-size: 1.6rem;
  margin-bottom: 6px;
}

.section-subtitle {
  opacity: 0.75;
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.list-item {
  padding: 12px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.12);
}

.list-item:last-child {
  border-bottom: none;
}

.list-item a {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.item-title {
  font-size: 1rem;
}

.item-meta {
  font-size: 0.8rem;
  opacity: 0.6;
}

.text-block {
  font-size: 0.98rem;
  opacity: 0.9;
}

footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 24px;
  font-size: 0.8rem;
  opacity: 0.6;
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

/* Responsive */

@media (max-width: 640px) {
  .page {
    padding: 28px 18px 40px;
  }

  .page-title {
    font-size: 1.8rem;
  }

  header {
    padding: 14px 18px;
  }

  .navbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .main-nav a {
    margin: 0 50px;
    display: inline-block;
}