/* MICRO-SPRINT PWA TERRAIN DÉDIÉE — §6/§7/§30 du mandat. Shell mobile-first
   dédié, cohérent avec la charte SIG-FDSU (fond sombre, mêmes teintes) mais
   volontairement plus simple : aucune sidebar desktop, aucun menu complet du
   SIG. Aucune dépendance à dashboard/styles.css (les modules réutilisés,
   field-forms.css/pwa.css, portent déjà tous leurs propres replis de
   couleur `var(--x, #hex)`) — shell réellement autonome. */
:root {
  --terrain-bg: #0f172a;
  --terrain-surface: rgba(15, 23, 42, 0.6);
  --terrain-border: rgba(148, 163, 184, 0.25);
  --terrain-text: #e2e8f0;
  --terrain-text-muted: #94a3b8;
  --terrain-accent: #2563eb;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--terrain-bg);
  color: var(--terrain-text);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  min-height: 100%;
}

html.auth-pending body { visibility: hidden; }

.terrain-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.terrain-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--terrain-border);
  background: var(--terrain-surface);
  position: sticky;
  top: 0;
  z-index: 5;
}

.terrain-header-title {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.terrain-header-title strong {
  font-size: 1.05rem;
  letter-spacing: 0.04em;
}

.terrain-header-title small {
  color: var(--terrain-text-muted);
  font-size: 0.72rem;
}

.terrain-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.terrain-role-badge {
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--terrain-border);
  color: var(--terrain-text-muted);
}

.terrain-logout-btn,
.terrain-install-btn {
  font-size: 0.78rem;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--terrain-border);
  background: transparent;
  color: var(--terrain-text);
  cursor: pointer;
}

.terrain-install-btn[hidden] { display: none; }

.terrain-content {
  flex: 1;
  padding: 14px 12px 90px;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
  min-width: 0;
}

.terrain-bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  border-top: 1px solid var(--terrain-border);
  background: var(--terrain-surface);
  backdrop-filter: blur(6px);
  z-index: 5;
}

.terrain-nav-btn {
  flex: 1;
  padding: 10px 4px 8px;
  background: transparent;
  border: none;
  color: var(--terrain-text-muted);
  font-size: 0.72rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  cursor: pointer;
}

.terrain-nav-btn.is-active {
  color: var(--terrain-accent);
}

.terrain-nav-icon { font-size: 1.1rem; line-height: 1; }

@media (max-width: 400px) {
  .terrain-header-title strong { font-size: 0.95rem; }
}

.terrain-legacy-note { margin: 10px 14px 24px; font-size: 0.78rem; text-align: center; }
.terrain-legacy-note a { color: #94a3b8; text-decoration: underline; }
.terrain-content .fc-host { min-width: 0; }

/* Lot UX : en-tête compact sur mobile (la barre FDSU TERRAIN de l'application porte mission, utilisateur, réseau, synchronisation et Menu). */
@media (max-width: 640px) {
  .terrain-header { padding: 4px 10px; min-height: 0; }
  .terrain-header-title small, .terrain-role-badge, .terrain-logout-btn { display: none; }
  .terrain-header-title strong { font-size: 0.8rem; }
  .terrain-legacy-note { display: none; }
}