/* Caisse (#3) : livraison, paiement PayPal, confirmation. Sortie du <style> de l'ancien paiement.php (#8). */
:root {
  --fond: #0d1117;
  --fond-clair: #161b22;
  --fond-carte: #1c2128;
  --bordure: #30363d;
  --texte: #e6edf3;
  --texte-attenue: #8b949e;
  --accent: #ff8a00;
  --accent-fonce: #cc6e00;
  --accent-clair: #ffb15c;
  --succes: #3fb950;
  --succes-clair: #56d364;
  --danger: #f85149;
  --danger-clair: #ffa198;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--fond);
  color: var(--texte);
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

/* ===== En-tête ===== */
#entete {
  background-color: var(--fond-clair);
  border-bottom: 1px solid var(--bordure);
  position: sticky;
  top: 0;
  z-index: 10;
}

#entete .conteneur {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

#logo {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--texte);
}

#logo span {
  color: var(--accent);
}

#nav-principale ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

#nav-principale a {
  color: var(--texte-attenue);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

#nav-principale a:hover,
#nav-principale a:focus,
#nav-principale a.actif {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ===== Sections générales ===== */
main > section {
  max-width: 900px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
}

.titre-page {
  font-size: 2rem;
  margin-bottom: 0.4rem;
}

.sous-titre-section {
  color: var(--texte-attenue);
  margin-bottom: 2.5rem;
  font-size: 0.98rem;
}

.titre-etape {
  font-size: 1.3rem;
  margin-bottom: 1.2rem;
}

.bouton {
  display: inline-block;
  background-color: var(--accent);
  color: #1a1200;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.85rem 1.8rem;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: background-color 0.2s ease, transform 0.15s ease;
}

.bouton:hover {
  background-color: var(--accent-clair);
  transform: translateY(-2px);
}

.bouton-pleine-largeur {
  display: block;
  width: 100%;
  text-align: center;
}

/* ===== Récapitulatif produit ===== */
.recap-produit {
  display: flex;
  align-items: center;
  gap: 1.3rem;
  background-color: var(--fond-carte);
  border: 1px solid var(--bordure);
  border-radius: 8px;
  padding: 1.2rem;
  margin-bottom: 2.5rem;
}

.recap-image {
  flex-shrink: 0;
  width: 110px;
  aspect-ratio: 16 / 10;
  border-radius: 6px;
  background: linear-gradient(135deg, #20242c, #14171d);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--texte-attenue);
  font-size: 0.65rem;
  text-align: center;
  padding: 0.3rem;
}

.recap-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 6px;
}

.recap-details {
  flex-grow: 1;
}

.recap-genre {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.3rem;
}

.recap-titre {
  font-size: 1.2rem;
  margin-bottom: 0.3rem;
}

.recap-note-panier {
  color: var(--texte-attenue);
  font-size: 0.85rem;
}

.recap-prix {
  flex-shrink: 0;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--texte);
  text-align: right;
}

/* ===== Indicateur d'étapes ===== */
.indicateur-etapes {
  list-style: none;
  display: flex;
  justify-content: space-between;
  margin-bottom: 3rem;
  counter-reset: etape;
}

.indicateur-etapes li {
  flex: 1;
  text-align: center;
  position: relative;
  color: var(--texte-attenue);
  font-size: 0.85rem;
  font-weight: 600;
}

.indicateur-etapes li::before {
  counter-increment: etape;
  content: counter(etape);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  margin: 0 auto 0.5rem;
  border-radius: 50%;
  border: 2px solid var(--bordure);
  background-color: var(--fond-carte);
  font-weight: 800;
}

.indicateur-etapes li.etape-active {
  color: var(--accent);
}

.indicateur-etapes li.etape-active::before {
  border-color: var(--accent);
  color: var(--accent);
}

.indicateur-etapes li.etape-complete::before {
  border-color: var(--succes);
  background-color: var(--succes);
  color: #06280f;
  content: "✓";
}

/* ===== Étapes du tunnel ===== */
.etape-paiement {
  background-color: var(--fond-clair);
  border: 1px solid var(--bordure);
  border-radius: 8px;
  padding: 2rem;
  margin-bottom: 2rem;
  scroll-margin-top: 90px;
}

.grille-champs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
}

.champ {
  margin-bottom: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.champ-pleine-largeur {
  grid-column: 1 / -1;
}

.champ label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--texte-attenue);
}

.champ input,
.champ select {
  background-color: var(--fond);
  border: 1px solid var(--bordure);
  border-radius: 4px;
  color: var(--texte);
  padding: 0.65rem 0.85rem;
  font-family: inherit;
  font-size: 0.95rem;
}

/* Choix de l'adresse de livraison (membre avec une adresse au compte) */
.choix-adresse {
  border: 1px solid var(--bordure);
  border-radius: 6px;
  padding: 1rem 1.2rem 1.2rem;
  margin-bottom: 1.4rem;
}

.choix-adresse legend {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--texte-attenue);
  padding: 0 0.4rem;
}

.option-adresse {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.5rem 0;
}

.option-adresse input {
  margin-top: 0.3rem;
  accent-color: var(--accent);
}

.option-adresse label {
  font-size: 0.95rem;
  color: var(--texte);
  cursor: pointer;
}

.adresse-enregistree {
  display: block;
  font-size: 0.88rem;
  color: var(--texte-attenue);
}

.choix-adresse .champs-adresse {
  margin-top: 1rem;
}

/* « Mon adresse » cochée : les champs d'une autre adresse sont inutiles.
   Sans :has(), ils restent visibles et le serveur ignore leur contenu. */
.choix-adresse:has(#adresse-compte:checked) .champs-adresse {
  display: none;
}

.lien-modifier-adresse {
  display: inline-block;
  margin-top: 0.4rem;
  font-size: 0.82rem;
  color: var(--accent);
}

.champ-case {
  flex-direction: row;
  align-items: center;
  gap: 0.6rem;
}

.champ-case label {
  font-size: 0.9rem;
  color: var(--texte);
  font-weight: 400;
}

.mention-securite {
  color: var(--texte-attenue);
  font-size: 0.82rem;
  text-align: center;
  margin-top: 1rem;
}

.mention-securite a {
  color: var(--accent);
  text-decoration: underline;
}

/* ===== Erreurs de formulaire ===== */
.message-erreurs {
  background-color: rgba(248, 81, 73, 0.1);
  border: 1px solid var(--danger);
  color: var(--danger-clair);
  border-radius: 6px;
  padding: 0.9rem 1.2rem;
  font-size: 0.92rem;
}

.message-erreurs ul {
  list-style: disc;
  margin-left: 1.2rem;
  margin-top: 0.3rem;
}

/* ===== Confirmation ===== */
.bloc-confirmation {
  text-align: center;
  padding: 1rem 1rem 0.5rem;
}

.icone-succes {
  width: 4rem;
  height: 4rem;
  margin: 0 auto 1.2rem;
  border-radius: 50%;
  background-color: var(--succes);
  color: #06280f;
  font-size: 2rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bloc-confirmation h3 {
  font-size: 1.4rem;
  margin-bottom: 0.6rem;
}

.bloc-confirmation p {
  color: var(--texte-attenue);
  margin-bottom: 1.6rem;
}

.details-transaction {
  background-color: var(--fond-carte);
  border: 1px solid var(--bordure);
  border-radius: 6px;
  padding: 1.2rem 1.5rem;
  text-align: left;
  margin-bottom: 1.6rem;
}

.details-transaction dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 1.2rem;
}

.details-transaction dt {
  color: var(--texte-attenue);
  font-size: 0.88rem;
}

.details-transaction dd {
  font-weight: 600;
  text-align: right;
}

/* ===== Pied de page ===== */
#pied-de-page {
  background-color: var(--fond-clair);
  border-top: 1px solid var(--bordure);
  padding: 2.5rem 1.5rem 1.5rem;
}

#pied-de-page .conteneur {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
}

.pied-bloc h3 {
  font-size: 1rem;
  margin-bottom: 0.9rem;
  color: var(--texte);
}

.pied-bloc p {
  color: var(--texte-attenue);
  font-size: 0.9rem;
  max-width: 32ch;
}

.pied-bloc ul {
  list-style: none;
}

.pied-bloc li {
  margin-bottom: 0.6rem;
}

.pied-bloc a {
  color: var(--texte-attenue);
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.pied-bloc a:hover {
  color: var(--accent);
}

.pied-de-page-bas {
  max-width: 1200px;
  margin: 2rem auto 0;
  padding-top: 1.2rem;
  border-top: 1px solid var(--bordure);
  color: var(--texte-attenue);
  font-size: 0.82rem;
  text-align: center;
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
  #entete .conteneur {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.8rem;
  }

  #nav-principale ul {
    gap: 1.2rem;
    flex-wrap: wrap;
  }

  .recap-produit {
    flex-wrap: wrap;
  }

  .recap-prix {
    text-align: left;
  }

  .grille-champs {
    grid-template-columns: 1fr;
  }

  .indicateur-etapes {
    font-size: 0.7rem;
  }

  #pied-de-page .conteneur {
    grid-template-columns: 1fr;
  }
}