/* ============================================================
   Feuille de style — design sobre, orienté édition académique.
   Palette : encre, ivoire, un seul accent bordeaux.
   ============================================================ */

:root {
  --encre: #1f2328;
  --encre-douce: #4b5563;
  --ivoire: #faf8f4;
  --papier: #ffffff;
  --bordure: #e3ded4;
  --accent: #7b2d3b;        /* bordeaux académique */
  --accent-fonce: #5e222d;
  --ok: #1f6f43;
  --attente: #8a6d1f;
  --nok: #9b1c1c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Georgia, 'Times New Roman', serif;
  color: var(--encre);
  background: var(--ivoire);
  line-height: 1.6;
}

.conteneur { max-width: 1080px; margin: 0 auto; padding: 0 1.25rem; }

/* --- En-tête / pied --- */
.entete { background: var(--papier); border-bottom: 3px double var(--bordure); }
.entete-int { display: flex; align-items: baseline; justify-content: space-between; padding: 1.1rem 1.25rem; }
.marque { font-size: 1.35rem; font-weight: bold; color: var(--encre); text-decoration: none; letter-spacing: .02em; }
.entete nav a { color: var(--encre-douce); text-decoration: none; margin-left: 1.25rem; font-size: .95rem; }
.entete nav a:hover { color: var(--accent); }
.pied { margin-top: 4rem; border-top: 1px solid var(--bordure); background: var(--papier); }
.pied p { color: var(--encre-douce); font-size: .85rem; padding: 1.25rem 0; }

main { min-height: 60vh; padding-top: 2rem; }

/* --- Typographie --- */
h1 { font-size: 1.9rem; font-weight: normal; letter-spacing: .01em; margin: 0 0 .5rem; }
h2 { font-size: 1.25rem; font-weight: bold; margin: 1.25rem 0 .5rem; }
.sous-titre { color: var(--encre-douce); font-style: italic; margin-top: 0; }
.intro { border-bottom: 1px solid var(--bordure); padding-bottom: 1rem; margin-bottom: 2rem; }
.vide { color: var(--encre-douce); font-style: italic; }
code { font-family: 'Courier New', monospace; background: #f1ede4; padding: .1em .35em; border-radius: 3px; font-size: .9em; }

/* --- Grille du catalogue --- */
.grille {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1.75rem;
}
.carte { background: var(--papier); border: 1px solid var(--bordure); transition: box-shadow .15s; }
.carte:hover { box-shadow: 0 4px 14px rgba(31, 35, 40, .09); }
.carte-lien { display: block; color: inherit; text-decoration: none; height: 100%; }
.carte-couverture { aspect-ratio: 3 / 4; background: #efeadf; overflow: hidden; }
.carte-couverture img { width: 100%; height: 100%; object-fit: cover; display: block; }
.couverture-defaut {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
  padding: 1rem; text-align: center; background: linear-gradient(160deg, #efeadf, #e0d8c6);
  color: var(--encre-douce); font-style: italic;
}
.couverture-defaut.grande { aspect-ratio: 3 / 4; }
.carte-corps { padding: 1rem 1.1rem 1.25rem; }
.carte-corps h2 { font-size: 1.05rem; margin: 0 0 .15rem; }
.auteur { color: var(--encre-douce); font-style: italic; margin: 0 0 .5rem; font-size: .92rem; }
.resume-court { font-size: .88rem; color: var(--encre-douce); margin: 0 0 .6rem; }
.prix { font-weight: bold; color: var(--accent); margin: 0; }
.prix.grand { font-size: 1.3rem; }

/* --- Fiche livre --- */
.detail { display: grid; grid-template-columns: 280px 1fr; gap: 2.5rem; background: var(--papier); border: 1px solid var(--bordure); padding: 2rem; }
.detail-couverture img { width: 100%; border: 1px solid var(--bordure); display: block; }
.resume { white-space: pre-line; margin: 1rem 0 1.5rem; }
.note-app { font-size: .9rem; color: var(--encre-douce); border-left: 3px solid var(--accent); padding-left: .8rem; }

/* --- Boutons --- */
.bouton {
  display: inline-block; background: var(--accent); color: #fff; border: none;
  padding: .65rem 1.5rem; font-family: inherit; font-size: 1rem; cursor: pointer;
  text-decoration: none; letter-spacing: .02em;
}
.bouton:hover { background: var(--accent-fonce); }
.bouton.secondaire { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.bouton.secondaire:hover { background: var(--accent); color: #fff; }
.bouton.petit { padding: .3rem .8rem; font-size: .85rem; }
.bouton.danger { background: transparent; color: var(--nok); border: 1px solid var(--nok); }
.bouton.danger:hover { background: var(--nok); color: #fff; }

/* --- Formulaires --- */
.formulaire-page { max-width: 640px; margin: 0 auto; background: var(--papier); border: 1px solid var(--bordure); padding: 2rem; }
.formulaire label { display: block; margin-bottom: 1rem; font-size: .95rem; }
.formulaire input[type="text"], .formulaire input[type="email"], .formulaire input[type="password"],
.formulaire input[type="number"], .formulaire textarea, .formulaire select, .formulaire input[type="file"] {
  display: block; width: 100%; margin-top: .3rem; padding: .55rem .7rem;
  border: 1px solid var(--bordure); background: var(--ivoire);
  font-family: inherit; font-size: 1rem; color: var(--encre);
}
.formulaire input:focus, .formulaire textarea:focus { outline: 2px solid var(--accent); border-color: transparent; }
.formulaire fieldset { border: 1px solid var(--bordure); margin: 0 0 1.25rem; padding: .8rem 1rem; }
.formulaire legend { font-size: .9rem; color: var(--encre-douce); padding: 0 .4rem; }
.formulaire .radio { font-size: .92rem; margin-bottom: .5rem; }
.formulaire .radio input { margin-right: .45rem; }
.note { font-size: .87rem; color: var(--encre-douce); margin-top: 1.5rem; }

/* --- Alertes et badges --- */
.alerte { padding: 1rem 1.25rem; margin: 1.25rem 0; border-left: 4px solid; font-size: .95rem; }
.alerte h2 { margin-top: 0; }
.alerte-erreur { border-color: var(--nok); background: #fdf2f2; color: var(--nok); }
.alerte-ok { border-color: var(--ok); background: #f0f9f3; }
.alerte-info { border-color: var(--attente); background: #fbf7ea; }
.badge { display: inline-block; padding: .1rem .6rem; border-radius: 999px; font-size: .8rem; font-family: sans-serif; }
.badge-ok { background: #e2f3e8; color: var(--ok); }
.badge-attente { background: #f7efd6; color: var(--attente); }
.badge-nok { background: #fbe4e4; color: var(--nok); }

.fiche-commande { background: var(--ivoire); border: 1px solid var(--bordure); padding: 1rem 1.25rem; }
.fiche-commande p { margin: .3rem 0; }

.erreur-page { text-align: center; padding: 4rem 0; }
.erreur-page h1 { font-size: 4rem; color: var(--bordure); }

/* --- Administration --- */
.admin-nav { background: var(--encre); }
.admin-nav .conteneur { display: flex; align-items: center; gap: 1.4rem; padding: .8rem 1.25rem; flex-wrap: wrap; }
.admin-nav a { color: #d3d7dc; text-decoration: none; font-size: .92rem; font-family: sans-serif; }
.admin-nav a:hover, .admin-nav a.actif { color: #fff; }
.admin-nav .marque-admin { color: #fff; font-weight: bold; margin-right: .5rem; }
.admin-nav form { margin-left: auto; }
.admin-nav button { background: none; border: 1px solid #6b7280; color: #d3d7dc; padding: .25rem .8rem; cursor: pointer; font-family: sans-serif; font-size: .85rem; }

.table { width: 100%; border-collapse: collapse; background: var(--papier); font-size: .92rem; }
.table th, .table td { border: 1px solid var(--bordure); padding: .55rem .75rem; text-align: left; vertical-align: middle; }
.table th { background: var(--ivoire); font-family: sans-serif; font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; color: var(--encre-douce); }
.table .actions { white-space: nowrap; }
.table .actions form { display: inline; }

.cartes-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; margin: 1.5rem 0 2rem; }
.carte-stat { background: var(--papier); border: 1px solid var(--bordure); padding: 1rem 1.25rem; }
.carte-stat .valeur { font-size: 1.7rem; font-weight: bold; color: var(--accent); }
.carte-stat .libelle { font-size: .8rem; font-family: sans-serif; color: var(--encre-douce); text-transform: uppercase; letter-spacing: .04em; }

.mdp-revele {
  background: #f0f9f3; border: 2px dashed var(--ok); padding: 1.25rem; margin-bottom: 1.5rem;
}
.mdp-revele code { font-size: 1.25rem; background: #fff; padding: .3em .6em; }

.qr-2fa { text-align: center; }
.qr-2fa img { border: 1px solid var(--bordure); }

/* --- Responsive --- */
@media (max-width: 760px) {
  .detail { grid-template-columns: 1fr; }
  .detail-couverture { max-width: 260px; margin: 0 auto; }
  .formulaire-page { padding: 1.25rem; }
  .table { display: block; overflow-x: auto; }
}