/* ===== Variables: chrome marine foncé, contenu clair (style PCPartPicker) ===== */
:root {
  --navy:       #0B1120;
  --navy-2:     #1E293B;
  --bleu:       #3B82F6;
  --bleu-fonce: #2563EB;
  --cyan:       #06B6D4;
  --vert:       #22C55E;
  --rouge:      #EF4444;
  --bg:         #F1F5F9;
  --carte:      #FFFFFF;
  --bordure:    #E2E8F0;
  --texte:      #0F172A;
  --texte-2:    #64748B;
  --ombre:      0 1px 3px rgba(15,23,42,.08), 0 1px 2px rgba(15,23,42,.06);
  --ombre-fort: 0 12px 30px rgba(15,23,42,.14);
  --rayon:      12px;
}

/* ===== Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--texte);
  min-height: 100vh;
}
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }

/* ===== En-tête ===== */
.ec-header {
  background: var(--navy);
  color: #F8FAFC;
  height: 64px;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 14px rgba(0,0,0,.35);
}
.ec-logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -.02em;
  background: none;
  border: none;
  color: #F8FAFC;
}
.ec-logo i { color: var(--cyan); }
.ec-logo span { color: var(--bleu); }
.ec-nav { display: flex; align-items: center; gap: 1.25rem; }
.lien-aide {
  display: flex;
  align-items: center;
  gap: .35rem;
  background: none;
  border: none;
  color: #CBD5E1;
  font-size: .9rem;
  font-weight: 500;
}
.lien-aide:hover { color: #fff; }
.cart-btn {
  display: flex;
  align-items: center;
  gap: .45rem;
  background: var(--bleu);
  color: #fff;
  border: none;
  padding: .5rem 1.1rem;
  border-radius: 22px;
  font-size: .88rem;
  font-weight: 600;
  transition: background .2s;
}
.cart-btn:hover { background: var(--bleu-fonce); }
.cart-count {
  background: #fff;
  color: var(--bleu-fonce);
  font-size: .72rem;
  font-weight: 800;
  min-width: 18px;
  height: 18px;
  padding: 0 .3rem;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #F8FAFC;
  text-align: center;
  padding: 3.25rem 1.5rem 3rem;
}
.hero h1 { font-size: 2.4rem; font-weight: 800; margin-bottom: .6rem; }
.hero h1 span { color: var(--bleu); }
.hero p { color: #94A3B8; font-size: 1.05rem; max-width: 560px; margin: 0 auto 1.5rem; }
.hero-cta {
  background: var(--cyan);
  color: var(--navy);
  border: none;
  font-size: .95rem;
  font-weight: 700;
  padding: .75rem 1.7rem;
  border-radius: 26px;
  transition: transform .15s, box-shadow .2s;
}
.hero-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(6,182,212,.4); }

/* ===== Bandeau promotionnel (inciter à l'action) ===== */
.promo-bar {
  background: linear-gradient(90deg, var(--bleu) 0%, var(--cyan) 100%);
  color: #fff;
  text-align: center;
  padding: .65rem 1rem;
  font-size: .9rem;
  font-weight: 600;
}

/* ===== Bandeau des 3 processus interactifs ===== */
.process-strip {
  max-width: 1280px;
  margin: 1.75rem auto 0;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.process-card {
  background: var(--carte);
  border: 1px solid var(--bordure);
  border-radius: var(--rayon);
  padding: 1rem 1.1rem;
  display: flex;
  gap: .85rem;
  align-items: flex-start;
  box-shadow: var(--ombre);
}
.process-card i { font-size: 1.5rem; color: var(--bleu); }
.process-card h3 { font-size: .92rem; font-weight: 700; margin-bottom: .15rem; }
.process-card p { font-size: .8rem; color: var(--texte-2); line-height: 1.4; }

/* ===== Disposition principale boutique ===== */
.boutique-wrap {
  max-width: 1280px;
  margin: 1.75rem auto;
  padding: 0 1.5rem;
  display: flex;
  gap: 1.75rem;
  align-items: flex-start;
}
.facet-col { width: 260px; flex-shrink: 0; }
.produit-col { flex: 1; min-width: 0; }

/* ===== Panneau de facettes ===== */
.facet-panel {
  background: var(--carte);
  border: 1px solid var(--bordure);
  border-radius: var(--rayon);
  box-shadow: var(--ombre);
  padding: 1.25rem;
  position: sticky;
  top: 80px;
}
.facet-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: .75rem;
  border-bottom: 2px solid var(--bleu);
}
.facet-head h2 {
  font-size: .95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
}
.btn-clear {
  background: none;
  border: 1px solid var(--bordure);
  color: var(--texte-2);
  font-size: .72rem;
  padding: .25rem .6rem;
  border-radius: 12px;
  transition: all .2s;
}
.btn-clear:hover { border-color: var(--bleu); color: var(--bleu); }

/* ===== Groupe de facettes ===== */
.facet-group { border-bottom: 1px solid var(--bordure); padding: .85rem 0; }
.facet-group:last-child { border-bottom: none; }
.facet-group-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--texte-2);
  font-weight: 700;
  margin-bottom: .6rem;
  cursor: pointer;
  user-select: none;
}
.toggle-icon { transition: transform .2s; }
.facet-group-label.replie .toggle-icon { transform: rotate(-90deg); }
.facet-options { display: flex; flex-direction: column; gap: .3rem; }
.facet-options.cachee { display: none; }
.facet-option {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .2rem .3rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background .15s;
}
.facet-option:hover { background: var(--bg); }
.facet-option input { accent-color: var(--bleu); width: 15px; height: 15px; flex-shrink: 0; }
.facet-option-label { flex: 1; font-size: .88rem; }
.facet-count {
  font-size: .72rem;
  color: var(--texte-2);
  background: var(--bg);
  padding: .1rem .4rem;
  border-radius: 10px;
}
.range-wrap input[type="range"] { width: 100%; accent-color: var(--bleu); cursor: pointer; }
.range-info { display: flex; justify-content: space-between; font-size: .8rem; color: var(--texte-2); margin-top: .35rem; }
.range-info strong { color: var(--bleu); }

/* ===== Barre des filtres actifs ===== */
.filtres-actifs {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: center;
  background: var(--carte);
  border: 1px solid var(--bordure);
  border-radius: var(--rayon);
  padding: .7rem 1rem;
  margin-bottom: 1rem;
  box-shadow: var(--ombre);
}
.filtres-actifs-label { font-size: .78rem; color: var(--texte-2); font-weight: 600; }
.tag {
  display: flex;
  align-items: center;
  gap: .35rem;
  background: var(--bleu);
  color: #fff;
  font-size: .78rem;
  font-weight: 600;
  padding: .25rem .65rem;
  border-radius: 16px;
  border: none;
  transition: background .15s;
}
.tag:hover { background: var(--bleu-fonce); }

/* ===== En-tête des résultats ===== */
.results-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.result-count { font-size: .9rem; color: var(--texte-2); }
.result-count strong { color: var(--bleu); font-size: 1.1rem; }
.tri-select {
  font-size: .85rem;
  padding: .4rem .7rem;
  border: 1px solid var(--bordure);
  border-radius: 8px;
  background: var(--carte);
  color: var(--texte);
  cursor: pointer;
}

/* ===== Grille de produits ===== */
.produit-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1.25rem; }

/* ===== Carte produit ===== */
.carte {
  background: var(--carte);
  border: 1px solid var(--bordure);
  border-radius: var(--rayon);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .2s, box-shadow .2s;
}
.carte:hover { transform: translateY(-4px); box-shadow: var(--ombre-fort); }
.carte-img-wrap {
  position: relative;
  height: 180px;
  background: #F8FAFC;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-img { width: 100%; height: 100%; object-fit: contain; padding: .75rem; }
.card-img-fallback { font-size: 3.5rem; color: #CBD5E1; }
.badge-nouveau {
  position: absolute;
  top: .6rem;
  left: .6rem;
  background: var(--bleu);
  color: #fff;
  font-size: .66rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: .2rem .5rem;
  border-radius: 10px;
}
.badge-promo {
  position: absolute;
  top: .6rem;
  right: .6rem;
  background: var(--rouge);
  color: #fff;
  font-size: .66rem;
  font-weight: 700;
  padding: .2rem .5rem;
  border-radius: 10px;
}
.carte-corps { padding: .9rem 1rem 1rem; display: flex; flex-direction: column; flex: 1; }
.carte-meta { font-size: .7rem; color: var(--texte-2); text-transform: uppercase; letter-spacing: .05em; margin-bottom: .25rem; }
.carte-titre { font-size: .95rem; font-weight: 700; line-height: 1.3; margin-bottom: .35rem; }
.carte-specs { font-size: .78rem; color: var(--texte-2); line-height: 1.4; margin-bottom: .75rem; flex: 1; }
.carte-pied { display: flex; justify-content: space-between; align-items: center; }
.prix { font-size: 1.15rem; font-weight: 800; }
.ancien-prix { font-size: .8rem; font-weight: 400; color: var(--texte-2); text-decoration: line-through; margin-left: .35rem; }
.btn-ajouter {
  display: flex;
  align-items: center;
  gap: .35rem;
  background: var(--navy);
  color: #fff;
  border: none;
  font-size: .8rem;
  font-weight: 600;
  padding: .5rem .9rem;
  border-radius: 20px;
  transition: background .2s;
}
.btn-ajouter:hover { background: var(--bleu); }
.btn-ajouter.ajoute { background: var(--vert); }

/* ===== État vide ===== */
.vide { grid-column: 1/-1; text-align: center; padding: 4rem 2rem; color: var(--texte-2); }
.vide i { font-size: 3rem; color: #CBD5E1; }
.vide h3 { font-size: 1.1rem; color: var(--texte); margin: .75rem 0 .35rem; }

/* ===== Bouton primaire générique ===== */
.btn-primaire {
  background: var(--bleu);
  color: #fff;
  border: none;
  font-size: .9rem;
  font-weight: 700;
  padding: .7rem 1.5rem;
  border-radius: 24px;
  transition: background .2s;
}
.btn-primaire:hover { background: var(--bleu-fonce); }
.btn-primaire:disabled { background: #CBD5E1; cursor: not-allowed; }

/* ===== Tunnel d'achat (suivi des instructions) ===== */
.checkout-wrap { max-width: 820px; margin: 2rem auto; padding: 0 1.5rem; }

.stepper { display: flex; list-style: none; margin-bottom: 2rem; }
.stepper-item { flex: 1; display: flex; flex-direction: column; align-items: center; position: relative; }
.stepper-item::before {
  content: "";
  position: absolute;
  top: 16px;
  left: -50%;
  width: 100%;
  height: 2px;
  background: var(--bordure);
  z-index: 0;
}
.stepper-item:first-child::before { display: none; }
.stepper-item.fait::before, .stepper-item.actif::before { background: var(--bleu); }
.stepper-num {
  position: relative;
  z-index: 1;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--carte);
  border: 2px solid var(--bordure);
  color: var(--texte-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  font-weight: 700;
}
.stepper-item.actif .stepper-num { border-color: var(--bleu); color: var(--bleu); }
.stepper-item.fait .stepper-num { background: var(--bleu); border-color: var(--bleu); color: #fff; }
.stepper-label { font-size: .78rem; font-weight: 600; color: var(--texte-2); margin-top: .45rem; text-align: center; }
.stepper-item.actif .stepper-label { color: var(--bleu); }

.checkout-card {
  background: var(--carte);
  border: 1px solid var(--bordure);
  border-radius: var(--rayon);
  box-shadow: var(--ombre);
  padding: 1.75rem;
}
.checkout-titre { font-size: 1.25rem; font-weight: 800; margin-bottom: 1.25rem; }

/* ===== Panier ===== */
.panier-ligne { display: flex; gap: 1rem; align-items: center; padding: .85rem 0; border-bottom: 1px solid var(--bordure); }
.panier-img { width: 56px; height: 56px; flex-shrink: 0; background: var(--bg); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; color: #CBD5E1; overflow: hidden; }
.panier-img img { width: 100%; height: 100%; object-fit: contain; padding: 4px; }
.panier-info { flex: 1; min-width: 0; }
.panier-nom { font-size: .9rem; font-weight: 700; }
.panier-specs { font-size: .76rem; color: var(--texte-2); }
.panier-qte { display: flex; align-items: center; gap: .5rem; }
.qte-btn { width: 26px; height: 26px; border-radius: 7px; border: 1px solid var(--bordure); background: var(--carte); font-weight: 700; color: var(--texte); }
.qte-btn:hover { border-color: var(--bleu); color: var(--bleu); }
.panier-prix { width: 90px; text-align: right; font-weight: 700; }
.panier-suppr { background: none; border: none; color: var(--rouge); font-size: 1.1rem; }
.panier-vide { text-align: center; padding: 2.5rem 1rem; color: var(--texte-2); }
.panier-vide i { font-size: 2.5rem; color: #CBD5E1; }

.recap { margin-top: 1.25rem; }
.recap-ligne { display: flex; justify-content: space-between; font-size: .9rem; color: var(--texte-2); padding: .3rem 0; }
.recap-total { display: flex; justify-content: space-between; font-size: 1.15rem; font-weight: 800; color: var(--texte); padding-top: .6rem; margin-top: .4rem; border-top: 2px solid var(--bordure); }

.checkout-actions { display: flex; justify-content: space-between; align-items: center; margin-top: 1.5rem; }
.btn-retour { display: flex; align-items: center; gap: .35rem; background: none; border: 1px solid var(--bordure); color: var(--texte-2); font-size: .88rem; font-weight: 600; padding: .65rem 1.2rem; border-radius: 24px; }
.btn-retour:hover { border-color: var(--texte-2); color: var(--texte); }

/* ===== Formulaires (informations et paiement) ===== */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.champ { display: flex; flex-direction: column; gap: .35rem; }
.champ.large { grid-column: 1/-1; }
.champ label { font-size: .8rem; font-weight: 600; color: var(--texte-2); }
.champ input {
  font-family: inherit;
  font-size: .9rem;
  padding: .6rem .75rem;
  border: 1px solid var(--bordure);
  border-radius: 8px;
  background: var(--carte);
  color: var(--texte);
}
.champ input:focus { outline: none; border-color: var(--bleu); box-shadow: 0 0 0 3px rgba(59,130,246,.15); }
.champ input.invalide { border-color: var(--rouge); }
.champ-erreur { display: flex; align-items: center; gap: .3rem; font-size: .76rem; color: var(--rouge); }

/* ===== Confirmation ===== */
.confirmation { text-align: center; padding: 1rem 0 .5rem; }
.conf-icone { font-size: 3.5rem; color: var(--vert); }
.confirmation h2 { font-size: 1.5rem; font-weight: 800; margin: .5rem 0 .35rem; }
.confirmation p { color: var(--texte-2); max-width: 480px; margin: 0 auto .35rem; }
.conf-num { display: inline-block; background: var(--bg); border: 1px solid var(--bordure); border-radius: 8px; padding: .4rem .9rem; font-weight: 700; margin-top: .5rem; }

/* ===== Sondage (communication) ===== */
.sondage { margin-top: 1.75rem; padding-top: 1.5rem; border-top: 1px solid var(--bordure); text-align: center; }
.sondage h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: .25rem; }
.sondage p { font-size: .85rem; color: var(--texte-2); margin-bottom: 1rem; }
.etoiles { display: flex; justify-content: center; gap: .35rem; margin-bottom: 1rem; }
.etoile { background: none; border: none; font-size: 1.8rem; color: #CBD5E1; transition: transform .1s; }
.etoile:hover { transform: scale(1.15); }
.etoile.pleine { color: #FACC15; }
.sondage textarea {
  width: 100%;
  font-family: inherit;
  font-size: .9rem;
  padding: .7rem .85rem;
  border: 1px solid var(--bordure);
  border-radius: 8px;
  resize: vertical;
  min-height: 80px;
  margin-bottom: 1rem;
}
.sondage textarea:focus { outline: none; border-color: var(--bleu); box-shadow: 0 0 0 3px rgba(59,130,246,.15); }
.sondage-merci { display: flex; flex-direction: column; align-items: center; gap: .5rem; color: var(--vert); font-weight: 700; padding: 1rem 0; }
.sondage-merci i { font-size: 2.2rem; }

/* ===== Fenêtre d'aide (aide et documentation) ===== */
.aide-overlay { position: fixed; inset: 0; background: rgba(15,23,42,.55); display: flex; align-items: center; justify-content: center; z-index: 200; padding: 1.5rem; }
.aide-modal { background: var(--carte); border-radius: var(--rayon); max-width: 460px; width: 100%; padding: 1.75rem; box-shadow: var(--ombre-fort); }
.aide-modal h2 { font-size: 1.15rem; font-weight: 800; margin-bottom: 1rem; display: flex; justify-content: space-between; align-items: center; }
.aide-modal .fermer { background: none; border: none; font-size: 1.3rem; color: var(--texte-2); }
.aide-modal dt { font-weight: 700; font-size: .9rem; margin-top: .85rem; }
.aide-modal dd { font-size: .85rem; color: var(--texte-2); line-height: 1.5; }

/* ===== Pied de page ===== */
.ec-footer { background: var(--navy); color: #94A3B8; text-align: center; padding: 2rem 1.5rem; font-size: .82rem; margin-top: 3rem; }
.ec-footer strong { color: #F8FAFC; }
.ec-footer a { color: var(--cyan); text-decoration: none; }

/* ===== Petits écrans ===== */
@media (max-width: 860px) {
  .boutique-wrap { flex-direction: column; }
  .facet-col { width: 100%; }
  .facet-panel { position: static; }
  .process-strip { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.9rem; }
}