/* Visite virtuelle exportée — interface plein écran, bureau et mobile. */

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0; height: 100%;
  background: #0c0c0e; color: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  overflow: hidden;
}

#viewer { position: fixed; inset: 0; }

/* ---------- bandeau de titre ---------- */
#titlebar {
  position: fixed; top: 0; left: 0; right: 0;
  display: flex; align-items: center; gap: 10px;
  padding: calc(10px + env(safe-area-inset-top)) 16px 26px;
  background: linear-gradient(180deg, rgba(0,0,0,0.55), transparent);
  pointer-events: none; z-index: 5;
}
#tour-title { font-weight: 700; font-size: 15px; letter-spacing: 0.02em; text-shadow: 0 1px 6px rgba(0,0,0,0.6); }
#scene-title { font-size: 13px; opacity: 0.85; text-shadow: 0 1px 6px rgba(0,0,0,0.6); }
#scene-title:not(:empty)::before { content: "· "; opacity: 0.6; }

/* ---------- barre de navigation ---------- */
#bar {
  position: fixed; left: 0; right: 0;
  bottom: calc(12px + env(safe-area-inset-bottom));
  display: flex; align-items: center; gap: 8px;
  padding: 0 12px; z-index: 5;
}
.bar-btn {
  flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 50%;
  background: rgba(16,16,18,0.62); color: #fff;
  border: 1px solid rgba(255,255,255,0.35);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  cursor: pointer; transition: background 0.15s ease;
}
.bar-btn:hover { background: rgba(16,16,18,0.88); }

#chips {
  flex: 1; display: flex; gap: 8px;
  overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch;
  padding: 4px 2px; justify-content: safe center;
}
#chips::-webkit-scrollbar { display: none; }
/* Vignette d'accès direct : une image vaut mieux qu'un nom de fichier. */
.chip {
  flex: none; padding: 0; overflow: hidden; cursor: pointer;
  width: 74px; height: 40px; border-radius: 9px;
  border: 2px solid rgba(255,255,255,0.35);
  background: rgba(16,16,18,0.62);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.chip img { width: 100%; height: 100%; object-fit: cover; opacity: 0.72; transition: opacity 0.15s ease; }
.chip:hover { border-color: rgba(255,255,255,0.8); }
.chip:hover img { opacity: 1; }
.chip.active { border-color: #fff; transform: translateY(-2px); }
.chip.active img { opacity: 1; }
@media (max-width: 640px) { .chip { width: 60px; height: 34px; } }

/* ---------- écrans de chargement / erreur ---------- */
.overlay {
  position: fixed; inset: 0; z-index: 10;
  display: flex; align-items: center; justify-content: center;
  background: #0c0c0e;
  transition: opacity 0.45s ease, visibility 0.45s ease;
}
.overlay.hidden { opacity: 0; visibility: hidden; }
.overlay-inner { text-align: center; padding: 24px; max-width: 420px; }
.overlay-title { font-size: 22px; font-weight: 700; margin: 18px 0 6px; }
.overlay-sub { font-size: 14px; opacity: 0.7; margin: 0; line-height: 1.5; }
.spinner {
  width: 42px; height: 42px; margin: 0 auto;
  border: 3px solid rgba(255,255,255,0.2); border-top-color: #fff;
  border-radius: 50%; animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.btn {
  margin-top: 18px; padding: 10px 22px; border-radius: 999px;
  background: #fff; color: #111; border: none;
  font-size: 14px; font-weight: 600; cursor: pointer;
}

/* ---------- Pannellum : retouches ---------- */
.pnlm-container { background: #0c0c0e !important; }
.pnlm-load-box { display: none !important; } /* remplacé par notre écran de chargement */
/* les contrôles de zoom passent sous le bandeau de titre */
.pnlm-controls-container { top: calc(44px + env(safe-area-inset-top)) !important; left: 12px !important; }

/* ---------- mobile ---------- */
@media (max-width: 640px) {
  .bar-btn { width: 40px; height: 40px; }
  #chips { justify-content: flex-start; }
}