/* ==========================================================================
   La Librairie du Château — feuille de style principale
   Palette : bleu roi (façade) · bois doré (rayonnages) · crème (papier)
   ========================================================================== */

:root {
  --bleu: #1f3a93;
  --bleu-fonce: #16295f;
  --bleu-nuit: #0f1d42;
  --bois: #c08a4e;
  --bois-clair: #e2b980;
  --creme: #faf6ef;
  --creme-fonce: #f1e9db;
  --encre: #1c2333;
  --gris: #5c6474;
  --blanc: #ffffff;

  --serif: "Fraunces", "Georgia", serif;
  --sans: "Jost", "Segoe UI", sans-serif;

  --radius: 18px;
  --ombre: 0 12px 40px rgba(15, 29, 66, 0.12);
  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  /* Empêche le menu mobile hors-écran de créer un défilement horizontal
     (clip et non hidden : hidden casserait l'en-tête sticky) */
  overflow-x: clip;
}

body {
  overflow-x: clip;
  font-family: var(--sans);
  color: var(--encre);
  background: var(--creme);
  line-height: 1.7;
  font-size: 1.05rem;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--bleu); text-decoration: none; }

.conteneur {
  width: min(1120px, 92%);
  margin-inline: auto;
}

/* --------------------------------------------------------------------------
   En-tête / navigation
   -------------------------------------------------------------------------- */

.entete {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(31, 58, 147, 0.1);
}

/* Le fond flouté vit dans un pseudo-élément : un backdrop-filter posé
   directement sur .entete transformerait l'en-tête en bloc conteneur
   des éléments fixed, ce qui casserait le panneau du menu mobile */
.entete::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(250, 246, 239, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.entete__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
}

.logo {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--bleu-fonce);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.logo__pastille {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--bleu);
  color: var(--blanc);
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(31, 58, 147, 0.35);
}

.nav { display: flex; align-items: center; gap: 2rem; }

.nav a {
  color: var(--encre);
  font-weight: 500;
  font-size: 0.98rem;
  position: relative;
  padding: 0.3rem 0;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--bois);
  transition: width var(--transition);
}

.nav a:hover::after,
.nav a.actif::after { width: 100%; }

.nav a.actif { color: var(--bleu); }

.nav .btn { padding: 0.55rem 1.3rem; }
.nav .btn::after { display: none; }

.burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--bleu-fonce);
  transition: var(--transition);
}

/* --------------------------------------------------------------------------
   Boutons
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bleu);
  color: var(--blanc) !important;
  padding: 0.85rem 1.9rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  font-family: var(--sans);
  border: none;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(31, 58, 147, 0.3);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn:hover {
  background: var(--bleu-fonce);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(31, 58, 147, 0.4);
}

.btn--clair {
  background: var(--blanc);
  color: var(--bleu) !important;
  box-shadow: 0 8px 24px rgba(15, 29, 66, 0.18);
}

.btn--clair:hover { background: var(--creme); color: var(--bleu-fonce) !important; }

.btn--contour {
  background: transparent;
  color: var(--blanc) !important;
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  box-shadow: none;
}

.btn--contour:hover { background: rgba(255, 255, 255, 0.12); }

/* --------------------------------------------------------------------------
   Héros
   -------------------------------------------------------------------------- */

.heros {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: flex-end;
  color: var(--blanc);
  isolation: isolate;
  overflow: hidden;
}

.heros__image {
  position: absolute;
  inset: 0;
  z-index: -2;
  /* Fond bleu qui encadre la photo affichée en entier sur grand écran */
  background: linear-gradient(120deg, var(--bleu-nuit) 0%, var(--bleu) 60%, var(--bleu-fonce) 100%);
}

.heros__image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: right center;
  filter: brightness(1.12) contrast(1.04) saturate(1.08);
}

.heros::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  /* Léger voile à gauche pour la lisibilité du texte, photo dégagée à droite */
  background: linear-gradient(
    to right,
    rgba(15, 29, 66, 0.55) 0%,
    rgba(15, 29, 66, 0.15) 45%,
    rgba(15, 29, 66, 0) 65%
  );
}

.heros__contenu {
  padding: 6rem 0 5rem;
  max-width: 720px;
}

.heros__surtitre {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bois-clair);
  margin-bottom: 1.2rem;
}

.heros__surtitre::before {
  content: "";
  width: 36px;
  height: 1.5px;
  background: var(--bois-clair);
}

.heros h1 {
  font-family: var(--serif);
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 500;
  line-height: 1.08;
  margin-bottom: 1.4rem;
}

.heros h1 em {
  font-style: italic;
  color: var(--bois-clair);
}

.heros p {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.88);
  max-width: 560px;
  margin-bottom: 2.2rem;
}

.heros__actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* --------------------------------------------------------------------------
   Sections génériques
   -------------------------------------------------------------------------- */

.section { padding: 6rem 0; }

.section--creme-fonce { background: var(--creme-fonce); }

.section--bleu {
  background: var(--bleu-nuit);
  color: var(--blanc);
}

.surtitre {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bois);
  margin-bottom: 1rem;
}

.surtitre::before {
  content: "";
  width: 32px;
  height: 1.5px;
  background: var(--bois);
}

h2.titre {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 500;
  line-height: 1.15;
  color: var(--bleu-fonce);
  margin-bottom: 1.2rem;
}

.section--bleu h2.titre { color: var(--blanc); }

.intro-texte {
  font-size: 1.12rem;
  color: var(--gris);
  max-width: 640px;
}

.section--bleu .intro-texte { color: rgba(255, 255, 255, 0.8); }

.centre { text-align: center; }
.centre .surtitre { justify-content: center; }
.centre .surtitre::before { display: none; }
.centre .intro-texte { margin-inline: auto; }

/* --------------------------------------------------------------------------
   Grille présentation (accueil)
   -------------------------------------------------------------------------- */

.duo {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 4rem;
  align-items: center;
}

.duo__image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--ombre);
  position: relative;
}

.duo__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 5;
  transition: transform 0.8s ease;
}

.duo__image:hover img { transform: scale(1.04); }

.duo__image--paysage img { aspect-ratio: 4 / 3; }

/* Cartes univers */

.cartes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
  margin-top: 3.5rem;
}

.carte {
  background: var(--blanc);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 6px 24px rgba(15, 29, 66, 0.08);
  transition: transform var(--transition), box-shadow var(--transition);
}

.carte:hover {
  transform: translateY(-6px);
  box-shadow: var(--ombre);
}

.carte__image { overflow: hidden; }

.carte__image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.carte:hover .carte__image img { transform: scale(1.06); }

.carte__corps { padding: 1.6rem 1.7rem 1.9rem; }

.carte__corps h3 {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--bleu-fonce);
  margin-bottom: 0.5rem;
}

.carte__corps p { color: var(--gris); font-size: 0.98rem; }

/* Cartes sans image (services) */

.carte--simple {
  padding: 2rem 1.8rem;
  border-top: 3px solid var(--bois);
}

.carte--simple .carte__icone {
  font-size: 1.9rem;
  margin-bottom: 0.9rem;
}

/* --------------------------------------------------------------------------
   Bandeau horaires
   -------------------------------------------------------------------------- */

.horaires-bandeau {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.horaire-carte {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: 1.8rem;
  text-align: center;
  transition: background var(--transition), transform var(--transition);
}

.horaire-carte:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}

.horaire-carte h3 {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--bois-clair);
  margin-bottom: 0.4rem;
}

.horaire-carte p {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.horaire-carte small {
  display: block;
  margin-top: 0.3rem;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.88rem;
}

/* --------------------------------------------------------------------------
   Citation / valeurs
   -------------------------------------------------------------------------- */

.citation {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-style: italic;
  line-height: 1.5;
  color: var(--bleu-fonce);
  max-width: 780px;
  margin-inline: auto;
}

.citation::before { content: "« "; color: var(--bois); }
.citation::after { content: " »"; color: var(--bois); }

/* --------------------------------------------------------------------------
   Page contact
   -------------------------------------------------------------------------- */

.bandeau-page {
  background: linear-gradient(135deg, var(--bleu-fonce), var(--bleu));
  color: var(--blanc);
  padding: 5.5rem 0 4.5rem;
  position: relative;
  overflow: hidden;
}

.bandeau-page::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(226, 185, 128, 0.25), transparent 70%);
}

.bandeau-page h1 {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 500;
  margin-bottom: 0.8rem;
}

.bandeau-page p {
  color: rgba(255, 255, 255, 0.82);
  max-width: 560px;
  font-size: 1.1rem;
}

.contact-grille {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 3.5rem;
  align-items: start;
}

.info-bloc {
  display: flex;
  gap: 1.1rem;
  align-items: flex-start;
  padding: 1.4rem 0;
  border-bottom: 1px solid rgba(31, 58, 147, 0.12);
}

.info-bloc:last-child { border-bottom: none; }

.info-bloc__icone {
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  border-radius: 12px;
  background: var(--bleu);
  color: var(--blanc);
  display: grid;
  place-items: center;
  font-size: 1.15rem;
  box-shadow: 0 6px 16px rgba(31, 58, 147, 0.28);
}

.info-bloc h3 {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--bleu-fonce);
  margin-bottom: 0.15rem;
}

.info-bloc p, .info-bloc a { color: var(--gris); font-size: 1rem; }
.info-bloc a:hover { color: var(--bleu); }

.info-bloc table { border-collapse: collapse; }
.info-bloc td { padding: 0.1rem 0; color: var(--gris); }
.info-bloc td:first-child { padding-right: 1.4rem; font-weight: 500; color: var(--encre); }

/* Formulaire */

.formulaire {
  background: var(--blanc);
  border-radius: var(--radius);
  padding: 2.6rem;
  box-shadow: var(--ombre);
}

.formulaire h2 {
  font-family: var(--serif);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--bleu-fonce);
  margin-bottom: 0.4rem;
}

.formulaire > p { color: var(--gris); margin-bottom: 1.8rem; font-size: 0.98rem; }

.champ { margin-bottom: 1.3rem; }

.champ-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.3rem;
}

.champ label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 0.4rem;
  color: var(--encre);
}

.champ input,
.champ textarea {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border: 1.5px solid #dfd8ca;
  border-radius: 12px;
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--encre);
  background: var(--creme);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.champ input:focus,
.champ textarea:focus {
  outline: none;
  border-color: var(--bleu);
  box-shadow: 0 0 0 4px rgba(31, 58, 147, 0.12);
  background: var(--blanc);
}

.champ textarea { resize: vertical; min-height: 140px; }

/* Carte OpenStreetMap */

.carte-map {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--ombre);
  margin-top: 4rem;
  line-height: 0;
}

.carte-map iframe {
  width: 100%;
  height: 440px;
  border: none;
}

/* --------------------------------------------------------------------------
   Page qui sommes-nous
   -------------------------------------------------------------------------- */

.galerie {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.galerie figure {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 6px 24px rgba(15, 29, 66, 0.1);
}

.galerie img {
  width: 100%;
  height: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.galerie figure:hover img { transform: scale(1.05); }

.chiffres {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
  text-align: center;
}

.chiffre span {
  display: block;
  font-family: var(--serif);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 600;
  color: var(--bois-clair);
}

.chiffre p { color: rgba(255, 255, 255, 0.75); font-size: 0.95rem; }

/* --------------------------------------------------------------------------
   Appel à l'action final
   -------------------------------------------------------------------------- */

.cta-final {
  text-align: center;
  padding: 5.5rem 0;
  background:
    linear-gradient(rgba(15, 29, 66, 0.88), rgba(15, 29, 66, 0.88)),
    url("../img/rayonnages.jpg") center 30% / cover no-repeat;
  color: var(--blanc);
}

.cta-final h2 {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 500;
  margin-bottom: 1rem;
}

.cta-final p {
  color: rgba(255, 255, 255, 0.8);
  max-width: 520px;
  margin: 0 auto 2rem;
}

/* --------------------------------------------------------------------------
   Pied de page
   -------------------------------------------------------------------------- */

.pied {
  background: var(--bleu-nuit);
  color: rgba(255, 255, 255, 0.75);
  padding: 4rem 0 2rem;
}

.pied__grille {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.pied h4 {
  font-family: var(--serif);
  color: var(--blanc);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.pied .logo { color: var(--blanc); margin-bottom: 1rem; }

.pied p, .pied a, .pied td { color: rgba(255, 255, 255, 0.7); font-size: 0.96rem; }

.pied a:hover { color: var(--bois-clair); }

.pied ul { list-style: none; }
.pied li { margin-bottom: 0.5rem; }

.pied table { border-collapse: collapse; }
.pied td { padding: 0.15rem 0; }
.pied td:first-child { padding-right: 1.2rem; color: var(--blanc); font-weight: 500; }

.pied__bas {
  padding-top: 1.6rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.5);
}

/* --------------------------------------------------------------------------
   Animations d'apparition
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 900px) {
  .duo, .contact-grille { grid-template-columns: 1fr; gap: 2.5rem; }
  .cartes, .galerie, .horaires-bandeau { grid-template-columns: 1fr 1fr; }
  .pied__grille { grid-template-columns: 1fr 1fr; }

  /* Menu burger dès 900px : évite une navigation à l'étroit sur tablette */
  .burger { display: flex; }

  .nav {
    position: fixed;
    inset: 0;
    top: 62px;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: 3rem;
    gap: 1.8rem;
    background: var(--creme);
    transform: translateX(100%);
    transition: transform var(--transition);
  }

  .nav.ouvert { transform: translateX(0); }

  .nav a { font-size: 1.25rem; white-space: nowrap; }

  /* Sur mobile/tablette : photo plein écran (recadrée), voile en bas */
  .heros__image img {
    object-fit: cover;
    object-position: center top;
  }

  .heros::after {
    background: linear-gradient(
      to top,
      rgba(15, 29, 66, 0.88) 0%,
      rgba(15, 29, 66, 0.35) 40%,
      rgba(15, 29, 66, 0.02) 75%
    );
  }
}

@media (max-width: 640px) {
  .section { padding: 4rem 0; }

  .cartes, .galerie, .horaires-bandeau, .champ-duo,
  .chiffres, .pied__grille { grid-template-columns: 1fr; }

  .heros { min-height: 80vh; }
  .formulaire { padding: 1.8rem; }
}