/* Installer l'application (plan.md §860) : la page application.html. Une colonne de lecture ; une carte par appareil,
   celle de la visite en tête, marquée « Votre appareil » (js/application.js). */
.app-page { max-width: 880px; margin: 0 auto; padding: 40px 20px 0; }
.app-tete { display: flex; align-items: center; gap: 18px; margin-bottom: 22px; }
.app-icone { flex: none; width: 76px; height: 76px; border-radius: 18px; box-shadow: 0 14px 34px -16px color-mix(in srgb, var(--accent) 80%, transparent); }
.app-tete h2 { font-size: clamp(24px, 4.4vw, 32px); letter-spacing: -.02em; margin-bottom: 6px; }
.app-chapeau { color: var(--text-muted); font-size: 15px; line-height: 1.6; max-width: 62ch; }
@media (max-width: 520px) { .app-tete { flex-direction: column; align-items: flex-start; } }

.app-etat {
  margin: 0 0 16px; padding: 11px 14px; border-radius: 12px; font-weight: 600; font-size: 14px; color: var(--success);
  background: color-mix(in srgb, var(--success) 10%, var(--surface)); border: 1px solid color-mix(in srgb, var(--success) 40%, var(--border));
}
.app-action { margin-bottom: 18px; }
.app-action .btn { font-size: 15px; padding: 12px 22px; }

.app-plateformes { display: flex; flex-direction: column; gap: 14px; }
.app-carte { border: 1px solid var(--border); border-radius: 16px; background: var(--surface); padding: 18px 20px 20px; }
.app-carte.est-ici { border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); box-shadow: 0 16px 34px -24px color-mix(in srgb, var(--accent) 90%, transparent); }
.app-carte-tete { display: flex; align-items: center; gap: 11px; margin-bottom: 12px; }
.app-carte-ico { font-size: 22px; line-height: 1; }
.app-carte h3 { font-size: 17px; }
.app-ici {
  margin-left: auto; font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--accent);
  border: 1px solid currentColor; border-radius: 20px; padding: 2px 9px;
}
.app-ici[hidden] { display: none; }
.app-etapes { margin: 0; padding-left: 22px; display: flex; flex-direction: column; gap: 8px; }
.app-etapes li { line-height: 1.6; font-size: 14.5px; }
.app-etapes li::marker { color: var(--accent); font-weight: 700; }
.app-store { margin: 0 0 12px; }
.app-store .btn { text-decoration: none; }
.app-note { margin-top: 12px; font-size: 13px; color: var(--text-muted); }

/* §861 : comment ça marche, l'avertissement d'Opera et Firefox, les images, les étapes par navigateur. */
.app-comment { margin: -8px 0 18px; font-size: 13.5px; color: var(--text-muted); line-height: 1.55; }
.app-alerte {
  margin: 0 0 18px; padding: 14px 16px; border-radius: 12px;
  background: color-mix(in srgb, var(--warning) 10%, var(--surface)); border: 1px solid color-mix(in srgb, var(--warning) 45%, var(--border));
}
.app-alerte p { margin: 0; font-weight: 600; }
.app-alerte p + p { margin-top: 12px; }
.app-alerte .btn { text-decoration: none; font-weight: 600; }
/* La main, pas la loupe : Opera sous Windows montre « zoom-in » en rond qui mouline (tutoriels.css). */
.app-image {
  display: block; width: 100%; padding: 0; margin: 0 0 14px; border: 1px solid var(--border); border-radius: 12px;
  overflow: hidden; background: var(--bg); cursor: pointer;
}
.app-image img { display: block; width: 100%; height: auto; }
.app-navs { display: flex; flex-direction: column; gap: 10px; }
.app-nav { padding: 12px 14px; border-radius: 12px; background: var(--bg); border: 1px solid var(--border); }
.app-nav.est-mien { border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); }
.app-nav h4 { display: flex; align-items: center; gap: 10px; margin: 0 0 8px; font-size: 14.5px; }
.app-nav p { margin: 0; font-size: 14px; line-height: 1.6; color: var(--text-muted); }
.app-mien {
  margin-left: auto; font-size: 10.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--accent);
  border: 1px solid currentColor; border-radius: 20px; padding: 2px 8px;
}
.app-mien[hidden] { display: none; }
.app-maquettes { margin-top: 16px; }
/* Une image agrandie : toute la fenêtre ; un clic ou Échap la referme. */
.app-zoom {
  position: fixed; inset: 0; z-index: 1000; background: rgba(0, 0, 0, .86); display: flex; align-items: center;
  justify-content: center; padding: 12px; cursor: pointer;
}
.app-zoom img { max-width: 100%; max-height: 100%; border-radius: 8px; }