/* =====================================================================
   pages.css — Pages publiques : en-tête du site, accueil, aide, profil,
   pied de page.
   ===================================================================== */

.site-page {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}
.site-page > main { flex: 1; }

/* ---------- En-tête et navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px max(16px, calc((100% - 1120px) / 2));
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-surface) 88%, transparent);
  backdrop-filter: blur(10px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
  font-size: 20px;
  font-weight: 800;
  text-decoration: none;
}
.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a:not(.btn) {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  font-weight: 600;
  text-decoration: none;
}
.site-nav a:not(.btn):hover { background: var(--color-surface-2); color: var(--color-text); }
.site-nav a[aria-current="page"] { color: var(--color-primary); }
.site-nav .btn { min-height: 38px; padding: 7px 14px; text-decoration: none; }
.nav-toggle { display: none; }

/* ---------- Conteneur générique ---------- */
.container { width: min(1120px, 100% - 32px); margin-inline: auto; }
.section { padding: 64px 0; }
.section-title { margin-bottom: 8px; font-size: clamp(24px, 4vw, 34px); text-align: center; }
.section-lead { max-width: 620px; margin: 0 auto 40px; text-align: center; }

/* ============================ ACCUEIL ============================ */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 48px;
  padding: 72px 0 56px;
}
.hero h1 { margin-bottom: 16px; font-size: clamp(34px, 6vw, 56px); line-height: 1.1; letter-spacing: -0.02em; }
.hero h1 span { color: var(--color-primary); }
.hero p { margin-bottom: 28px; font-size: 18px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-actions .btn { min-height: 48px; padding: 12px 24px; font-size: 16px; text-decoration: none; }

/* Illustration de l'accueil (assets/hero-illustration.svg) */
.hero-art { position: relative; margin: 0; }
.hero-art::before {
  content: "";
  position: absolute;
  inset: 8% 10%;
  z-index: -1;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--color-primary) 30%, transparent), transparent 70%);
  filter: blur(30px);
}
.hero-art img { width: 100%; height: auto; }

/* Grille des fonctionnalités */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature {
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}
.feature-icon { margin-bottom: 12px; font-size: 30px; }
.feature h3 { margin-bottom: 6px; font-size: 18px; }
.feature.is-highlight { border-color: var(--color-primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 15%, transparent); }
.tag {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--color-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  vertical-align: middle;
}

/* Étapes « Comment ça marche » */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; padding: 0; list-style: none; }
.steps li { position: relative; padding: 24px 24px 24px 72px; border-radius: var(--radius-lg); background: var(--color-surface); }
.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 20px;
  top: 22px;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 800;
}
.steps h3 { margin-bottom: 4px; font-size: 17px; }

.cta {
  padding: 48px 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-primary), #8250df);
  color: #fff;
  text-align: center;
}
.cta h2 { margin-bottom: 8px; font-size: clamp(22px, 4vw, 30px); }
.cta p { margin-bottom: 20px; opacity: 0.9; }
.cta .btn { background: #fff; color: #1b1f24; text-decoration: none; }

/* ============================ PAGES DE CONTENU (aide, profil) ============================ */
.page-header { padding: 48px 0 24px; }
.page-header h1 { margin-bottom: 8px; font-size: clamp(28px, 5vw, 40px); }

.content { display: grid; grid-template-columns: 220px 1fr; gap: 40px; padding-bottom: 64px; }
.toc { position: sticky; top: 90px; align-self: start; display: flex; flex-direction: column; gap: 4px; }
.toc a { padding: 6px 10px; border-radius: var(--radius-sm); color: var(--color-muted); text-decoration: none; }
.toc a:hover { background: var(--color-surface-2); color: var(--color-text); }

.prose { max-width: 760px; }
.prose section { margin-bottom: 40px; scroll-margin-top: 90px; }
.prose h2 { margin-bottom: 12px; font-size: 24px; }
.prose h3 { margin: 20px 0 8px; font-size: 18px; }
.prose p, .prose ul, .prose ol { margin: 0 0 12px; }
.prose li { margin-bottom: 6px; }
.prose code { padding: 2px 6px; border-radius: 6px; background: var(--color-surface-2); font-size: 0.9em; }
.prose table { width: 100%; margin-bottom: 16px; border-collapse: collapse; }
.prose th, .prose td { padding: 10px; border-bottom: 1px solid var(--color-border); text-align: left; vertical-align: top; }
.prose details {
  margin-bottom: 8px;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}
.prose summary { font-weight: 600; cursor: pointer; }
.prose details p { margin: 10px 0 0; }

/* Profil */
.profile-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; padding-bottom: 64px; }
.card {
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}
.card h2 { margin-bottom: 16px; font-size: 20px; }
.card.is-wide { grid-column: 1 / -1; }
.profile-summary { display: flex; align-items: center; gap: 16px; }
.profile-summary .avatar { width: 72px; height: 72px; font-size: 30px; }
.profile-summary h2 { margin: 0; }
.stats { display: flex; gap: 24px; margin-left: auto; text-align: center; }
.stats strong { display: block; font-size: 24px; }
.card-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.card-actions .btn { text-decoration: none; }

/* 404 */
.not-found { display: grid; place-items: center; gap: 12px; padding: 96px 16px; text-align: center; }
.not-found h1 { font-size: 72px; color: var(--color-primary); }
.not-found .btn { text-decoration: none; }

/* ---------- Pied de page ---------- */
.site-footer {
  padding: 24px 16px;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 14px;
  text-align: center;
}
.site-footer nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; margin-bottom: 8px; }
.site-footer a { color: inherit; }

/* ============================ ADAPTABILITÉ ============================ */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 48px; gap: 32px; }
  .features, .steps { grid-template-columns: 1fr 1fr; }
  .content { grid-template-columns: 1fr; }
  .toc { position: static; flex-direction: row; flex-wrap: wrap; }
}

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { text-align: center; }
}

@media (max-width: 640px) {
  .features, .steps, .profile-grid { grid-template-columns: 1fr; }
  .section { padding: 44px 0; }
  .profile-summary { flex-wrap: wrap; }
  .stats { margin-left: 0; }
}
.site-nav .btn-primary[aria-current="page"] { color: #fff; }