/* ==========================================================================
   DENTS ÉCLAT — FEUILLE DE STYLE
   Sommaire :
   1. Variables & réinitialisation
   2. Utilitaires (container, boutons, animations)
   3. En-tête / navigation
   4. Hero
   5. Sections génériques + présentation produit
   6. Galerie
   7. Pourquoi choisir (cartes)
   8. Avis clients
   9. FAQ
   10. Commande (prix, formulaire, récapitulatif)
   11. Modale de confirmation
   12. Bouton WhatsApp flottant
   13. Pied de page
   14. Responsive (mobile)
   ========================================================================== */

/* -------------------- 1. VARIABLES & RESET -------------------- */
:root{
  /* Couleurs principales — modifiez ici pour changer toute la charte */
  --color-bg:        #FAFDFC;
  --color-bg-alt:    #EFF8F6;
  --color-surface:   #FFFFFF;
  --color-primary:   #0B4F6C;   /* bleu profond */
  --color-primary-d: #073A50;
  --color-accent:    #2FBF8F;   /* vert menthe */
  --color-accent-d:  #1F9E73;
  --color-text:      #0B2B30;
  --color-text-soft: #52706F;
  --color-border:    #DDEEEC;
  --color-warn:      #E4572E;

  --font-display: "Fraunces", "Georgia", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;

  --shadow-sm: 0 2px 10px rgba(11,79,108,0.08);
  --shadow-md: 0 12px 32px rgba(11,79,108,0.12);
  --shadow-lg: 0 24px 60px rgba(11,79,108,0.16);

  --header-h: 76px;
}

*, *::before, *::after{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,h2,h3{
  font-family: var(--font-display);
  color: var(--color-primary-d);
  margin: 0 0 0.5em;
  line-height: 1.15;
}

p{ margin: 0 0 1em; color: var(--color-text-soft); }
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
ul{ list-style: none; margin: 0; padding: 0; }
button{ font-family: inherit; cursor: pointer;
 }

/* -------------------- 2. UTILITAIRES -------------------- */
.container{
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow{ max-width: 760px; }

.eyebrow{
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-d);
  margin-bottom: 12px;
}

.section{ padding: 96px 0; scroll-margin-top: var(--header-h); }
#accueil, #commander{ scroll-margin-top: var(--header-h); }
.section-alt{ background: var(--color-bg-alt); }
.section-head{ max-width: 640px; margin: 0 auto 48px; text-align: center; }
.section-head h2{ font-size: clamp(1.6rem, 3vw, 2.3rem); }
.section-sub{ font-size: 1.02rem; }

.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  border: none;
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn-primary{
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-primary:active{ transform: translateY(0); }
.btn-lg{ padding: 17px 36px; font-size: 1.05rem; }
.btn-block{ width: 100%; }

/* -------------------- 3. EN-TÊTE / NAVIGATION -------------------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(250,253,252,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo{ display: flex; align-items: center; gap: 10px; }
.logo-mark{ color: var(--color-accent-d); display: flex; }
.logo-text{
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-primary-d);
}
.logo-text em{ font-style: normal; color: var(--color-accent-d); }

.main-nav{ display: flex; align-items: center; gap: 32px; }
.main-nav a{
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
  position: relative;
  padding: 4px 0;
}
.main-nav a:not(.nav-cta)::after{
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--color-accent);
  transition: width 0.25s ease;
}
.main-nav a:not(.nav-cta):hover::after{ width: 100%; }
.nav-cta{
  background: var(--color-primary);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: 999px;
  transition: background 0.2s ease, transform 0.2s ease;
}
.nav-cta:hover{ background: var(--color-primary-d); transform: translateY(-1px); }

.burger{
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}
.burger span{
  width: 24px; height: 2px;
  background: var(--color-primary-d);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* -------------------- 4. HERO -------------------- */
.hero{
  position: relative;
  overflow: hidden;
  padding: 72px 0 90px;
}
.hero-glow{
  position: absolute;
  top: -200px; right: -160px;
  width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(47,191,143,0.25), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-inner{
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
  position: relative;
}
.hero-text h1{
  font-size: clamp(2rem, 4vw, 3.1rem);
  animation: fadeUp 0.8s ease both;
}
.highlight{ color: var(--color-accent-d); }
.hero-sub{
  font-size: 1.08rem;
  max-width: 520px;
  animation: fadeUp 0.8s ease 0.1s both;
}
.hero-actions{ animation: fadeUp 0.8s ease 0.2s both; }
.hero-trust{
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  font-size: 0.9rem;
  color: var(--color-text-soft);
}
.stars{ color: #F5A524; letter-spacing: 2px; }
.stars.small{ font-size: 0.85rem; }

.hero-media{
  position: relative;
  animation: fadeUp 0.9s ease 0.15s both;
}
.hero-img{
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 1/1;
  object-fit: cover;
  width: 100%;
}
.hero-shade-card{
  position: absolute;
  left: -24px; bottom: -24px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-md);
  max-width: 240px;
}
.shade-label{ font-weight: 700; font-size: 0.85rem; color: var(--color-primary-d); }
.shade-strip{ display: flex; gap: 4px; margin: 10px 0 8px; }
.shade-strip i{
  flex: 1; height: 14px; border-radius: 4px;
  background: linear-gradient(90deg, #9C8365, #C4A57C, #E0C69C, #EFDFC2, #F7F1E4, #FFFFFF);
}
.shade-strip i:nth-child(1){ background:#9C8365; }
.shade-strip i:nth-child(2){ background:#B7986E; }
.shade-strip i:nth-child(3){ background:#D3B98B; }
.shade-strip i:nth-child(4){ background:#E9D9B6; }
.shade-strip i:nth-child(5){ background:#F5EFDF; }
.shade-strip i:nth-child(6){ background:#FFFFFF; border:1px solid var(--color-border); }
.shade-caption{ font-size: 0.75rem; color: var(--color-text-soft); }

@keyframes fadeUp{
  from{ opacity: 0; transform: translateY(18px); }
  to{ opacity: 1; transform: translateY(0); }
}

/* -------------------- 5. PRESENTATION PRODUIT -------------------- */
.feature-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card{
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.feature-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-md); }
.feature-icon{
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-accent-d);
  margin-bottom: 16px;
}
.feature-icon svg{ width: 22px; height: 22px; }
.feature-card h3{ font-size: 1.1rem; }
.feature-card p{ font-size: 0.92rem; margin-bottom: 0; }

/* -------------------- 6. GALERIE -------------------- */
.gallery-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.gallery-item{
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  aspect-ratio: 1/1;
}
.gallery-item img{
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.gallery-item:hover img{ transform: scale(1.12); }

/* -------------------- 7. POURQUOI CHOISIR -------------------- */
.why-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.why-card{
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  border: 1px solid var(--color-border);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.why-card:hover{
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}
.why-icon{ font-size: 1.8rem; display: block; margin-bottom: 14px; }
.why-card h3{ font-size: 1.05rem; }
.why-card p{ font-size: 0.92rem; margin-bottom: 0; }

/* -------------------- GRILLE TARIFAIRE RAPIDE (après la photo du hero) -------------------- */
.quick-pricing-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.quick-price-card{
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.quick-price-card:hover{
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}
.quick-price-card.is-highlight{
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  position: relative;
}
.quick-price-card.is-highlight::before{
  content: "★ Populaire";
  position: absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 999px;
  white-space: nowrap;
}
.quick-price-tag{
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-accent-d);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}
.quick-price-card h3{ font-size: 1.15rem; margin-bottom: 12px; }
.quick-price-amount{
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-primary-d);
  margin-bottom: 20px;
}
.quick-price-amount span{ font-size: 1rem; font-weight: 500; color: var(--color-text-soft); }

/* -------------------- 8. AVIS CLIENTS -------------------- */
.reviews-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.review-card{
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}
.review-top{ display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.avatar{ width: 46px; height: 46px; border-radius: 50%; object-fit: cover; }
.review-card p{ font-size: 0.93rem; margin-bottom: 0; font-style: italic; }

/* -------------------- 9. FAQ -------------------- */
.faq-list{ display: flex; flex-direction: column; gap: 12px; }
.faq-item{
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 6px 20px;
}
.faq-item summary{
  cursor: pointer;
  padding: 16px 0;
  font-weight: 600;
  color: var(--color-primary-d);
  list-style: none;
  position: relative;
  padding-right: 28px;
}
.faq-item summary::-webkit-details-marker{ display: none; }
.faq-item summary::after{
  content: "+";
  position: absolute;
  right: 0; top: 14px;
  font-size: 1.3rem;
  color: var(--color-accent-d);
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after{ transform: rotate(45deg); }
.faq-item p{ padding-bottom: 16px; font-size: 0.93rem; }

/* -------------------- 10. COMMANDE -------------------- */
.section-order{ background: var(--color-bg-alt); }
.order-layout{
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 32px;
  align-items: start;
}

.pricing-card{
  background: linear-gradient(160deg, var(--color-primary), var(--color-primary-d));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: sticky;
  top: calc(var(--header-h) + 24px);
  box-shadow: var(--shadow-lg);
}
.pricing-badge{
  display: inline-block;
  background: rgba(255,255,255,0.15);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}
.pricing-card h3{ color: #fff; font-size: 1.3rem; }
.pricing-list{ display: flex; flex-direction: column; gap: 12px; margin: 18px 0; }
.pricing-list li{
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 0.92rem;
}
.pricing-list li strong{ font-size: 1rem; }
.pricing-list li.best-value{ background: rgba(47,191,143,0.35); border: 1px solid rgba(255,255,255,0.4); }
.pricing-note{ font-size: 0.78rem; opacity: 0.85; margin-bottom: 0; }

.order-form{
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
}
.form-row{ display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group{ margin-bottom: 18px; }
.form-group label{
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  margin-bottom: 6px;
  color: var(--color-primary-d);
}
.form-group input,
.form-group textarea{
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.96rem;
  background: var(--color-bg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-group input:focus,
.form-group textarea:focus{
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(47,191,143,0.18);
}
.form-group textarea{ resize: vertical; }

.qty-control{ display: flex; align-items: center; gap: 12px; }
.qty-btn{
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1.5px solid var(--color-border);
  background: var(--color-bg);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary-d);
  transition: background 0.2s ease, border-color 0.2s ease;
}
.qty-btn:hover{ background: var(--color-bg-alt); border-color: var(--color-accent); }
.qty-control input{
  width: 70px;
  text-align: center;
  padding: 13px 8px;
}

.order-summary{
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin: 22px 0;
  border: 1px dashed var(--color-accent);
}
.summary-row{
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 0.92rem;
  color: var(--color-text-soft);
}
.summary-discount strong{ color: var(--color-accent-d); }
.summary-total{
  border-top: 1px solid var(--color-border);
  margin-top: 6px;
  padding-top: 12px;
  font-size: 1.05rem;
  color: var(--color-primary-d);
}
.summary-total strong{ font-size: 1.25rem; }

.form-note{
  text-align: center;
  font-size: 0.8rem;
  margin: 14px 0 0;
}

/* -------------------- 11. MODALE -------------------- */
.modal-overlay{
  position: fixed;
  inset: 0;
  background: rgba(11,43,48,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  z-index: 1000;
}
.modal-overlay.is-visible{ opacity: 1; visibility: visible; }
.modal-box{
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  max-width: 400px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px) scale(0.97);
  transition: transform 0.25s ease;
}
.modal-overlay.is-visible .modal-box{ transform: translateY(0) scale(1); }
.modal-icon{ font-size: 2.6rem; margin-bottom: 12px; }
.modal-box h3{ font-size: 1.2rem; }
.modal-box p{ font-size: 0.92rem; }

/* -------------------- 12. WHATSAPP FLOTTANT -------------------- */
.whatsapp-float{
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 58px; height: 58px;
  background: #25D366;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  z-index: 90;
  animation: pulse 2.4s ease infinite;
}
@keyframes pulse{
  0%, 100%{ box-shadow: 0 0 0 0 rgba(37,211,102,0.45), var(--shadow-lg); }
  50%{ box-shadow: 0 0 0 10px rgba(37,211,102,0), var(--shadow-lg); }
}

/* -------------------- 13. PIED DE PAGE -------------------- */
.site-footer{
  background: var(--color-primary-d);
  color: rgba(255,255,255,0.85);
  padding: 56px 0 24px;
}
.footer-inner{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
}
.footer-brand .logo-text{ color: #fff; }
.footer-brand .logo-text em{ color: var(--color-accent); }
.footer-brand p{ color: rgba(255,255,255,0.65); font-size: 0.9rem; margin-top: 10px; }
.footer-links h4{
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #fff;
  margin-bottom: 14px;
}
.footer-links a{
  display: block;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 10px;
  transition: color 0.2s ease;
}
.footer-links a:hover{ color: var(--color-accent); }
.footer-bottom{
  border-top: 1px solid rgba(255,255,255,0.15);
  margin-top: 32px;
  padding-top: 20px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
}

/* -------------------- 14. RESPONSIVE -------------------- */
@media (max-width: 960px){
  .hero-inner{ grid-template-columns: 1fr; }
  .hero-media{ order: -1; max-width: 420px; margin: 0 auto; }
  .feature-grid{ grid-template-columns: repeat(2, 1fr); }
  .why-grid{ grid-template-columns: repeat(2, 1fr); }
  .quick-pricing-grid{ grid-template-columns: repeat(2, 1fr); }
  .reviews-grid{ grid-template-columns: repeat(2, 1fr); }
  .gallery-grid{ grid-template-columns: repeat(2, 1fr); }
  .order-layout{ grid-template-columns: 1fr; }
  .pricing-card{ position: static; }
  .footer-inner{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px){
  .main-nav{
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px 28px;
    gap: 18px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%);
    transition: transform 0.3s ease;
  }
  .main-nav.is-open{ transform: translateY(0); }
  .main-nav a{ font-size: 1.05rem; }
  .nav-cta{ text-align: center; }
  .burger{ display: flex; }

  .feature-grid{ grid-template-columns: 1fr; }
  .why-grid{ grid-template-columns: 1fr; }
  .quick-pricing-grid{ grid-template-columns: 1fr; }
  .reviews-grid{ grid-template-columns: 1fr; }
  .gallery-grid{ grid-template-columns: repeat(2, 1fr); }
  .form-row{ grid-template-columns: 1fr; }
  .footer-inner{ grid-template-columns: 1fr; text-align: left; }
  .hero{ padding-top: 48px; }
  .section{ padding: 64px 0; }
  .hero-shade-card{ left: 12px; bottom: -20px; max-width: calc(100% - 24px); }
}