/* ===== Variables =====
   Thème sombre bleu marine / bleu acier (2026-08-09, inspiré d'un modèle Canva
   fourni par le propriétaire). Le fond de page est maintenant sombre, mais les
   cartes/formulaires/en-tête restent des surfaces blanches — d'où la paire
   --color-text (texte sur fond sombre) / --color-surface-text (texte sur
   surface blanche), qui ne doivent jamais être confondues. */
:root {
  --color-primary: #4a76ad;
  --color-primary-light: #6b93c4;
  --color-accent: #8ea6c2;
  --color-bg: #141c2c;
  --color-text: #e8edf4;
  --color-text-light: #a3b1c4;
  --color-white: #ffffff;
  --color-border: #dbe7e9;
  /* Texte sur surface blanche (en-tête, cartes, formulaires) : toujours sombre,
     indépendamment du thème clair/sombre choisi pour le fond de page. */
  --color-surface-text: #1c2635;
  --color-surface-text-light: #5c6b7a;
  /* Fond des champs de formulaire : toujours clair, les formulaires sont
     toujours sur une carte blanche même en thème sombre. */
  --color-input-bg: #eef2f6;
  /* Texte des bandeaux de titre (fond teal uni : Montures, Catalogue...) —
     séparé de --color-white pour rester réglable. */
  --color-header-text: #ffffff;
  /* Texte de la photo d'accueil : variable à part, car le fond est une photo
     (luminosité imprévisible) et non un aplat de couleur comme les bandeaux. */
  --color-hero-text: #132b2e;
  --radius: 10px;
  --shadow: 0 4px 16px rgba(13, 92, 99, 0.12);
  --max-width: 1140px;
}

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

html {
  scroll-behavior: smooth;
}

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

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

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

ul {
  list-style: none;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.site-header {
  background: var(--color-white);
  color: var(--color-surface-text);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.logo-icon {
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  width: 26px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.cart-link {
  position: relative;
  line-height: 1;
}

.cart-icon-badge {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary-light));
  transition: transform 0.15s;
}

.cart-link:hover .cart-icon-badge {
  transform: translateY(-2px);
}

.cart-icon-badge svg {
  width: 17px;
  height: 17px;
  stroke: var(--color-white);
  stroke-width: 1.8;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.cart-badge {
  display: none;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: -6px;
  right: -8px;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 0.68rem;
  font-weight: 700;
  border: 2px solid var(--color-white);
}

.main-nav ul {
  display: flex;
  gap: 32px;
}

.main-nav a {
  font-weight: 500;
  color: var(--color-surface-text);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-primary);
  border-color: var(--color-accent);
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.15s, box-shadow 0.15s, background 0.2s, color 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-primary-light);
  box-shadow: var(--shadow);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ===== Hero ===== */
.hero {
  background-image: url("../images/hero-opticien.jpg");
  background-size: cover;
  background-position: center;
  color: var(--color-hero-text);
  padding: 100px 0;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: block;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: 2.6rem;
  line-height: 1.2;
  margin-bottom: 18px;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 28px;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-actions .btn-outline {
  border-color: var(--color-hero-text);
  color: var(--color-hero-text);
}

.hero-actions .btn-outline:hover {
  background: var(--color-white);
  color: var(--color-primary);
}

/* ===== Sections generic ===== */
section {
  padding: 72px 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-header .eyebrow {
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.section-header h2 {
  font-size: 2rem;
  color: var(--color-text);
  margin: 10px 0 12px;
}

.section-header p {
  color: var(--color-text-light);
}

/* ===== Stats ===== */
.stats {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-primary);
}

.stat-label {
  color: var(--color-surface-text-light);
  margin-top: 4px;
}

/* ===== Cards / grid ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card {
  display: block;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: box-shadow 0.2s, transform 0.2s;
}

.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
}

.card-icon.accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary-light));
}

/* Carte catégorie catalogue avec une vraie photo produit (voir catalogue-thumbnails.js) :
   remplace le badge dégradé par une photo, sans toucher au fallback icône/dégradé
   tant qu'aucune photo n'est disponible pour la catégorie. */
.card-icon.has-photo {
  width: 96px;
  height: 96px;
  border-radius: 14px;
  background-size: cover;
  background-position: center;
}

.card-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-white);
  stroke-width: 1.7;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card h3 {
  color: var(--color-primary);
  margin-bottom: 8px;
}

.card p {
  color: var(--color-surface-text-light);
  font-size: 0.95rem;
}

/* ===== Bandes de titre (sections "Conseils d'entretien", "Un large choix...") ===== */
.band-title {
  background: var(--color-accent);
  padding: 22px 0;
}

.band-title h2 {
  color: var(--color-surface-text);
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ===== Listes à puces (conseils, points forts) ===== */
.tip-list li {
  padding-left: 30px;
  position: relative;
  margin-bottom: 16px;
  color: var(--color-text);
  line-height: 1.5;
}

.tip-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: -1px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-surface-text);
  font-size: 0.7rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== Cartes "tendances" avec photo pleine largeur (voir js/home-content.js) ===== */
.trend-card {
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.trend-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.trend-photo {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  background-size: cover;
  background-position: center;
}

.trend-body {
  padding: 20px 22px 24px;
}

.trend-body h3 {
  color: var(--color-surface-text);
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.trend-body p {
  color: var(--color-surface-text-light);
  font-size: 0.9rem;
}

/* ===== Parcours client en 5 étapes ===== */
.journey-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.journey-step {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 30px 16px 20px;
  text-align: center;
}

.journey-step .step-num {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.journey-step h4 {
  color: var(--color-surface-text);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 6px;
}

.journey-step p {
  color: var(--color-surface-text-light);
  font-size: 0.82rem;
  line-height: 1.5;
}

/* ===== CTA band ===== */
.cta-band {
  background: var(--color-accent);
  text-align: center;
}

.cta-band h2 {
  color: var(--color-surface-text);
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.cta-band p {
  color: var(--color-surface-text-light);
  margin-bottom: 26px;
}

/* ===== Catalogue ===== */
.page-header {
  background: var(--color-primary);
  color: var(--color-header-text);
  padding: 56px 0;
  text-align: center;
}

.page-header h1 {
  font-size: 2.2rem;
  margin-bottom: 10px;
}

.page-header p {
  opacity: 0.9;
}

.filters {
  display: flex;
  gap: 36px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
  border-bottom: 1px solid var(--color-border);
}

.filter-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 0 2px 14px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-light);
  transition: color 0.2s, border-color 0.2s;
}

.filter-btn:hover {
  color: var(--color-primary);
}

.filter-btn.active {
  color: var(--color-primary);
  border-color: var(--color-accent);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 28px;
}

.product-card {
  transition: opacity 0.2s;
}

.product-card:hover .product-image {
  transform: scale(1.03);
}

.product-image {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 6px;
  overflow: hidden;
  background: linear-gradient(135deg, #dceef0, #eef8f8);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s;
}

.product-image svg {
  width: 34%;
  height: 34%;
  stroke: var(--color-primary-light);
  stroke-width: 1.4;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.7;
}

.stock-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: #b3261e;
  color: var(--color-white);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 4px 10px;
  border-radius: 999px;
}

.stock-badge-ok {
  background: var(--color-primary-light);
}

.add-to-cart-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.product-body {
  padding-top: 14px;
}

.product-category {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.product-body h3 {
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.product-body p {
  color: var(--color-text-light);
  font-size: 0.87rem;
  margin-bottom: 8px;
}

.product-price {
  font-weight: 700;
  color: var(--color-primary);
}

.product-ref {
  font-size: 0.76rem !important;
  color: var(--color-text-light);
  opacity: 0.8;
  margin-bottom: 4px !important;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.product-footer .btn {
  padding: 8px 16px;
  font-size: 0.82rem;
}

.notice-banner {
  background: #fff8ea;
  border: 1px solid #f0dfae;
  color: #6b5417;
  padding: 14px 20px;
  border-radius: var(--radius);
  margin-bottom: 40px;
  font-size: 0.9rem;
}

/* ===== Contact ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info h2 {
  color: var(--color-text);
  margin-bottom: 16px;
}

.contact-info > p {
  color: var(--color-text-light);
  margin-bottom: 28px;
}

.info-item {
  display: flex;
  gap: 14px;
  margin-bottom: 22px;
}

.info-icon {
  font-size: 1.4rem;
}

.info-item h4 {
  color: var(--color-text);
  margin-bottom: 2px;
  font-size: 0.95rem;
}

.info-item p {
  color: var(--color-text-light);
  font-size: 0.92rem;
}

.map-placeholder {
  margin-top: 24px;
  height: 200px;
  background: var(--color-white);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-surface-text-light);
  font-size: 0.9rem;
  text-align: center;
  padding: 16px;
}

.contact-form {
  background: var(--color-white);
  color: var(--color-surface-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 0.92rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.95rem;
  background: var(--color-input-bg);
  color: var(--color-surface-text);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary-light);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-note {
  font-size: 0.82rem;
  color: var(--color-surface-text-light);
  margin-top: 10px;
}

.form-status {
  margin-top: 16px;
  font-weight: 600;
  display: none;
}

.form-status.success {
  color: var(--color-primary-light);
  display: block;
}

.form-status.error {
  color: #b3261e;
  display: block;
}

/* ===== Panier ===== */
.cart-item {
  display: flex;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.cart-item-thumb {
  width: 96px;
  height: 96px;
  flex-shrink: 0;
  border-radius: 6px;
  overflow: hidden;
  background: linear-gradient(135deg, #dceef0, #eef8f8);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cart-item-thumb svg {
  width: 34%;
  height: 34%;
  stroke: var(--color-primary-light);
  stroke-width: 1.4;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.7;
}

.cart-item-info {
  flex: 1;
}

.cart-item-info h3 {
  color: var(--color-text);
  font-size: 1rem;
  margin-bottom: 4px;
}

.cart-item-info .product-price {
  display: block;
  margin-bottom: 10px;
}

.qty-stepper {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 4px 6px;
  margin-right: 12px;
}

.qty-stepper button {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: none;
  background: var(--color-input-bg);
  color: var(--color-surface-text);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
}

.cart-item-info .ordonnance-change-btn,
.cart-item-info .ordonnance-remove-btn,
.cart-item-info .remove-btn {
  background: none;
  border: none;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  text-decoration: underline;
  margin-right: 16px;
  padding: 0;
}

.cart-item-info .remove-btn,
.cart-item-info .ordonnance-remove-btn {
  color: #b3261e;
}

.ordonnance-block {
  margin-top: 10px;
}

/* Bouton principal "ajouter une ordonnance" : rendu volontairement voyant
   (fond plein, icône) car c'est une étape facile à manquer sinon — voir
   panier.js pour la liste des catégories qui en ont besoin. */
.ordonnance-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent);
  color: var(--color-surface-text);
  border: none;
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  padding: 10px 18px;
  border-radius: 999px;
  margin-top: 4px;
  transition: transform 0.15s, box-shadow 0.15s;
}

.ordonnance-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.ordonnance-preview {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.ordonnance-preview img {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--color-border);
}

.ordonnance-check {
  font-size: 1.3rem;
}

.ordonnance-status {
  margin-top: 6px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.85);
  padding: 48px 0 24px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-grid h4 {
  color: var(--color-white);
  margin-bottom: 14px;
}

.footer-grid ul li {
  margin-bottom: 8px;
}

.footer-grid ul li a:hover {
  color: var(--color-white);
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 20px;
  font-size: 0.85rem;
}

/* ===== Responsive ===== */
@media (max-width: 880px) {
  .hero-inner {
    text-align: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero p {
    margin-left: auto;
    margin-right: auto;
  }

  .stats-grid,
  .cards-grid,
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .journey-grid {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 36px;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    display: none;
    width: 100%;
  }

  .main-nav.open {
    display: block;
  }

  .header-inner {
    flex-wrap: wrap;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 4px;
    padding: 16px 0;
  }

  .stats-grid,
  .cards-grid,
  .products-grid {
    grid-template-columns: 1fr;
  }

  .journey-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero h1 {
    font-size: 2rem;
  }
}

/* ===== Bouton WhatsApp flottant (cf. js/whatsapp-button.js) ===== */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  z-index: 999;
  transition: transform 0.2s ease;
}

.whatsapp-float:hover {
  transform: scale(1.08);
}

.whatsapp-float svg {
  width: 30px;
  height: 30px;
  fill: #fff;
}

@media (max-width: 600px) {
  .whatsapp-float {
    width: 50px;
    height: 50px;
    bottom: 16px;
    right: 16px;
  }

  .whatsapp-float svg {
    width: 26px;
    height: 26px;
  }
}