/* ============================================
   DENTAL OPUS — Système de design v2
   Bordeaux #4F1127 · Bronze #B8874E · Crème #F8F6F3
   Polices système — aucune requête externe.
   ============================================ */

:root {
  --bordeaux: #4F1127;
  --bordeaux-light: #6d1c39;
  --bronze: #B8874E;           /* accent décoratif uniquement — filets, puces, survols */
  --bronze-texte: #7a5a2e;     /* variante assombrie — seule autorisée pour du texte (contraste AA sur crème) */
  --creme: #F8F6F3;
  --creme-warm: #F1ECE5;
  --texte: #2b1620;
  --texte-doux: #5c4a52;       /* assombri par rapport à v1 pour atteindre AA sur crème */
  --blanc: #ffffff;

  --serif: 'Iowan Old Style', 'Palatino Linotype', Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --marge: clamp(1.25rem, 5vw, 6rem);
  --largeur-max: 1180px;
  --largeur-texte: 62ch;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--creme);
  color: var(--texte);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 400;
  color: var(--bordeaux);
  line-height: 1.16;
  margin: 0 0 0.55em 0;
  max-width: 22ch;
}
h1 { font-size: clamp(2.1rem, 5.2vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.1vw, 2.3rem); }
h3 { font-size: clamp(1.2rem, 1.9vw, 1.4rem); }
p, li { max-width: var(--largeur-texte); }
p { margin: 0 0 1.1em 0; }
a { color: inherit; }

.eyebrow {
  font-family: var(--sans);
  font-size: 0.76rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--bronze-texte);
  font-weight: 700;
  display: block;
  margin-bottom: 0.9em;
}

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

/* --- Lien d'évitement (accessibilité clavier) --- */
.lien-evitement {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--bordeaux);
  color: var(--creme);
  padding: 0.8rem 1.3rem;
  z-index: 1000;
  border-radius: 0 0 4px 0;
  text-decoration: none;
  font-weight: 600;
}
.lien-evitement:focus {
  left: 0;
}

/* --- Focus visible clavier --- */
:focus-visible {
  outline: 3px solid var(--bronze);
  outline-offset: 2px;
}
a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--bronze);
  outline-offset: 2px;
}

.conteneur { max-width: var(--largeur-max); margin: 0 auto; padding: 0 var(--marge); }
section { padding: clamp(3rem, 7vw, 6rem) 0; }
.filet { width: 44px; height: 2px; background: var(--bronze); border: none; margin: 1.5rem 0; }

/* --- Header / Navigation --- */
header.site {
  position: sticky; top: 0; z-index: 100;
  background: rgba(248, 246, 243, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(79, 17, 39, 0.1);
}
.nav-barre {
  max-width: var(--largeur-max); margin: 0 auto;
  padding: 1rem var(--marge);
  display: flex; align-items: center; justify-content: space-between;
}
.logo {
  font-family: var(--serif);
  font-size: 1.25rem;
  color: var(--bordeaux);
  text-decoration: none;
  letter-spacing: 0.01em;
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo small {
  font-family: var(--sans);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bronze-texte);
  font-weight: 600;
}
nav.principale { display: flex; align-items: center; gap: 1.8rem; }
nav.principale a:not(.bouton) {
  text-decoration: none; font-size: 0.92rem; color: var(--texte);
  font-weight: 500; position: relative; padding: 0.3rem 0.1rem;
}
nav.principale a:hover, nav.principale a.actif { color: var(--bordeaux); }
nav.principale a.actif::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -4px;
  height: 2px; background: var(--bronze);
}
.menu-mobile-btn {
  display: none; background: none; border: none; cursor: pointer; padding: 0.5rem;
}
.menu-mobile-btn span {
  display: block; width: 22px; height: 2px; background: var(--bordeaux); margin: 5px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.menu-mobile-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-mobile-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-mobile-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --- Boutons --- */
.bouton {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  font-family: var(--sans); font-weight: 600; font-size: 0.94rem;
  text-decoration: none; padding: 0.95rem 1.7rem; min-height: 48px;
  border-radius: 3px; transition: all 0.2s ease; border: 1px solid var(--bordeaux);
  cursor: pointer;
}
.bouton-plein { background: var(--bordeaux); color: var(--creme); }
.bouton-plein:hover { background: var(--bordeaux-light); }
.bouton-contour { background: transparent; color: var(--bordeaux); }
.bouton-contour:hover { background: rgba(79,17,39,0.06); }
.bouton[disabled] { opacity: 0.6; cursor: not-allowed; }

/* --- Hero (repensé : plus architectural, moins "vide") --- */
.hero {
  padding: clamp(3rem, 9vw, 6.5rem) 0 clamp(2.5rem, 6vw, 4rem);
  border-bottom: 1px solid rgba(79,17,39,0.1);
}
.hero .conteneur {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: end;
}
.hero-texte .eyebrow { margin-bottom: 1.1em; }
.hero h1 { max-width: 10ch; margin-bottom: 0.25em; }
.hero .signature {
  font-family: var(--serif); font-size: clamp(1.05rem, 2.1vw, 1.35rem);
  color: var(--texte-doux); margin: 0 0 0.7em 0; max-width: 30ch;
}
.hero .intro { font-size: 1.02rem; max-width: 40ch; color: var(--texte-doux); }
.hero .cta-groupe { margin-top: 1.8rem; display: flex; gap: 0.9rem; flex-wrap: wrap; }
.hero-visuel { align-self: stretch; }
.hero-visuel .photo-placeholder { height: 100%; min-height: 220px; }

/* --- Placeholder photo (formats annotés) --- */
.photo-placeholder {
  position: relative;
  background: linear-gradient(135deg, var(--bordeaux) 0%, #6d1c39 55%, var(--bronze) 150%);
  aspect-ratio: 4/3;
  border-radius: 3px;
  display: flex; align-items: flex-end;
  overflow: hidden;
}
.photo-placeholder::before {
  content: '';
  position: absolute; inset: 0;
  background-image: repeating-linear-gradient(115deg, rgba(255,255,255,0.045) 0px, rgba(255,255,255,0.045) 1px, transparent 1px, transparent 34px);
}
.photo-placeholder span {
  position: relative; color: rgba(248,246,243,0.9);
  font-size: 0.74rem; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 0.9rem 1.1rem; font-weight: 600; line-height: 1.4;
}
.photo-placeholder .format { display: block; font-size: 0.66rem; opacity: 0.75; font-weight: 500; text-transform: none; letter-spacing: 0.02em; }
.photo-placeholder.ratio-large { aspect-ratio: 16/9; }
.photo-placeholder.ratio-portrait { aspect-ratio: 3/4; }
.photo-placeholder.ratio-carre { aspect-ratio: 1/1; }

/* --- Rythme éditorial : variantes de section pour casser la répétition --- */
.section-texte-seul { max-width: var(--largeur-texte); }
.section-texte-large { max-width: 46ch; }

.section-decalee .conteneur {
  display: grid; grid-template-columns: 0.9fr 1.3fr; gap: clamp(2rem, 5vw, 4rem); align-items: start;
}
.section-decalee.inverse .conteneur { grid-template-columns: 1.3fr 0.9fr; }
.section-decalee.inverse .bloc-texte { order: 2; }
.section-decalee.inverse .bloc-visuel { order: 1; }

.section-pleine-largeur { max-width: none; }

/* --- Grille des soins : liste éditoriale plutôt que cartes catalogue --- */
.liste-soins { margin-top: 2.2rem; border-top: 1px solid rgba(79,17,39,0.14); }
.item-soin {
  display: grid; grid-template-columns: 2.5rem 1fr auto;
  gap: 1.2rem; align-items: baseline;
  padding: 1.4rem 0; border-bottom: 1px solid rgba(79,17,39,0.14);
}
.item-soin .numero { font-family: var(--serif); color: var(--bronze-texte); font-size: 1rem; }
.item-soin h3 { margin-bottom: 0.25em; }
.item-soin p { margin-bottom: 0; font-size: 0.95rem; color: var(--texte-doux); }
.item-soin a.lien-discret {
  font-size: 0.86rem; font-weight: 600; color: var(--bordeaux); text-decoration: none;
  border-bottom: 1px solid var(--bronze); padding-bottom: 2px; white-space: nowrap;
}

/* --- Équipe --- */
.grille-equipe { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 2.4rem; margin-top: 2.2rem; }
.carte-praticien h3 { margin-top: 1.1rem; margin-bottom: 0.15em; }
.carte-praticien .role { color: var(--bronze-texte); font-size: 0.84rem; font-weight: 600; letter-spacing: 0.02em; margin-bottom: 0.7em; display: block; }
.carte-praticien .lien-profil { color: var(--bordeaux); font-weight: 600; text-decoration: none; border-bottom: 1px solid var(--bronze); }

/* --- Section teintée --- */
.section-teintee { background: var(--bordeaux); color: var(--creme); }
.section-teintee h2 { color: var(--creme); }
.section-teintee .eyebrow { color: #e3c9a0; }
.section-teintee p { color: rgba(248,246,243,0.85); }
.section-teintee .bouton-contour { border-color: var(--creme); color: var(--creme); }
.section-teintee .bouton-contour:hover { background: rgba(248,246,243,0.1); }

/* --- Formulaire --- */
form.contact-form { display: grid; gap: 1.4rem; max-width: 640px; margin-top: 1.8rem; }
.ligne-champs { display: grid; grid-template-columns: 1fr 1fr; gap: 1.3rem; }
label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--bordeaux); margin-bottom: 0.45rem; }
.label-optionnel { font-weight: 400; color: var(--texte-doux); }
input, select, textarea {
  width: 100%; font-family: var(--sans); font-size: 1rem; padding: 0.85rem 1rem;
  border: 1px solid rgba(79,17,39,0.3); border-radius: 3px; background: var(--blanc); color: var(--texte);
}
input:invalid, select:invalid { box-shadow: none; } /* on gère nous-mêmes l'affichage d'erreur */
fieldset { border: none; padding: 0; margin: 0; }
legend { font-size: 0.85rem; font-weight: 600; color: var(--bordeaux); padding: 0; margin-bottom: 0.6rem; }
.radio-groupe { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.radio-groupe label {
  font-weight: 500; color: var(--texte); border: 1px solid rgba(79,17,39,0.3); border-radius: 20px;
  padding: 0.6rem 1.1rem; cursor: pointer; margin: 0; font-size: 0.9rem; transition: all 0.15s;
  min-height: 44px; display: inline-flex; align-items: center;
}
.radio-groupe input {
  position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0);
}
.radio-groupe input:focus-visible + label,
.radio-groupe label:has(input:focus-visible) { outline: 3px solid var(--bronze); outline-offset: 2px; }
.radio-groupe input:checked + label { background: var(--bordeaux); color: var(--creme); border-color: var(--bordeaux); }
.champ-note { font-size: 0.82rem; color: var(--texte-doux); margin-top: -0.8rem; }
.champ-erreur {
  font-size: 0.85rem; color: #6b2626; margin-top: 0.4rem; font-weight: 600;
}
.champ-invalide input, .champ-invalide select, .champ-invalide textarea {
  border-color: #a33; background: #fdf3f3;
}
.resume-erreurs {
  background: #f6e6e6; border: 1px solid #e0b7b7; color: #6b2626;
  padding: 1.1rem 1.3rem; border-radius: 3px; margin-bottom: 1.6rem;
}
.resume-erreurs a { color: #6b2626; text-decoration: underline; }
.message-etat { padding: 1rem 1.3rem; border-radius: 3px; margin-bottom: 1.5rem; font-size: 0.95rem; }
.message-etat.succes { background: #e8f0e6; color: #2f5233; border: 1px solid #b7d0b2; }
.message-etat.erreur { background: #f6e6e6; color: #6b2626; border: 1px solid #e0b7b7; }
.encart-urgence {
  background: var(--creme-warm); border-left: 3px solid var(--bronze);
  padding: 1rem 1.3rem; font-size: 0.92rem; margin: 1.6rem 0; color: var(--texte-doux);
}

/* --- Infos pratiques --- */
.grille-infos { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 2.2rem; margin-top: 2rem; }
.bloc-info .eyebrow { margin-bottom: 0.5em; }
.avis-preouverture {
  background: var(--creme-warm); border: 1px solid rgba(79,17,39,0.12); border-radius: 4px;
  padding: 1.6rem 1.8rem; margin-top: 2rem;
}

/* --- Footer --- */
footer.site { background: var(--creme-warm); border-top: 1px solid rgba(79,17,39,0.1); padding: 2.8rem 0 2rem; margin-top: 3rem; }
.footer-grille { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; padding-bottom: 2rem; }
.footer-grille h4 { font-size: 0.85rem; color: var(--bordeaux); margin-bottom: 0.8em; font-family: var(--sans); }
.footer-grille a { display: block; text-decoration: none; color: var(--texte-doux); font-size: 0.92rem; margin-bottom: 0.5em; }
.footer-grille a:hover { color: var(--bordeaux); }
.footer-bas {
  border-top: 1px solid rgba(79,17,39,0.1); padding-top: 1.3rem; font-size: 0.8rem; color: var(--texte-doux);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem;
}
.footer-bas a { color: var(--texte-doux); }

/* --- Barre CTA mobile fixe --- */
.cta-mobile-fixe {
  display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 200;
  background: var(--creme); border-top: 1px solid rgba(79,17,39,0.14);
  padding: 0.7rem var(--marge); padding-bottom: max(0.7rem, env(safe-area-inset-bottom));
}
.cta-mobile-fixe a { width: 100%; text-align: center; }

/* --- Reveal au scroll : AMÉLIORATION PROGRESSIVE.
   Par défaut (pas de JS) : tout est visible. Un petit script inline dans
   <head> ajoute la classe "js" sur <html> seulement si JS s'exécute ;
   c'est CETTE classe qui active l'état masqué initial. --- */
.reveal { opacity: 1; transform: none; }
html.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
html.js .reveal.visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  html.js .reveal { opacity: 1; transform: none; transition: none; }
}

/* --- Responsive : mobile-first, points de rupture explicites --- */
@media (max-width: 860px) {
  nav.principale { display: none; }
  .menu-mobile-btn { display: block; }
  nav.principale.ouvert {
    display: flex; position: absolute; top: 100%; left: 0; right: 0; background: var(--creme);
    flex-direction: column; align-items: stretch; padding: 1.2rem var(--marge) 1.6rem; gap: 0.9rem;
    border-bottom: 1px solid rgba(79,17,39,0.1);
  }
  nav.principale.ouvert a:not(.bouton) { padding: 0.6rem 0; }
  .hero .conteneur { grid-template-columns: 1fr; }
  .hero h1 { max-width: none; }
  .hero-visuel { order: -1; }
  .hero-visuel .photo-placeholder { min-height: 200px; aspect-ratio: 16/10; }
  .section-decalee .conteneur, .section-decalee.inverse .conteneur { grid-template-columns: 1fr; }
  .section-decalee.inverse .bloc-texte, .section-decalee.inverse .bloc-visuel { order: initial; }
  .footer-grille { grid-template-columns: 1fr; gap: 1.6rem; }
  .ligne-champs { grid-template-columns: 1fr; }
  .item-soin { grid-template-columns: 2rem 1fr; }
  .item-soin a.lien-discret { grid-column: 2; }
  .cta-mobile-fixe { display: flex; }
  body { padding-bottom: 4.4rem; }
  .hero .cta-groupe .bouton { width: 100%; }
}
@media (min-width: 861px) {
  .cta-mobile-fixe { display: none !important; }
}