/* ==========================================================================
   DMBM — le livre (fond crème)
   ========================================================================== */

@font-face {
  font-family: "Cormorant Garamond";
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url("fonts/cormorant-300.woff2") format("woff2");
}
@font-face {
  font-family: "Cormorant Garamond";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/cormorant-400.woff2") format("woff2");
}
@font-face {
  font-family: "Cormorant Garamond";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("fonts/cormorant-500.woff2") format("woff2");
}
@font-face {
  font-family: "Cormorant Garamond";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/cormorant-400-italic.woff2") format("woff2");
}

:root {
  --fond: #fdfcfa;          /* crème */
  --fond-clair: #ffffff;    /* crème plus clair, centre du héros */
  --papier: #ffffff;        /* blanc de la page du livre */
  --encre: #1b1813;         /* noir chaud */
  --encre-douce: #4a443a;
  --pierre: #8a8172;        /* gris pierre */
  --laiton: #a3854f;        /* accent laiton */
  --filet: rgba(27, 24, 19, 0.16);
  --ombre: 27, 24, 19;      /* base rgba des ombres portées */
  --serif: "Cormorant Garamond", "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --marge: clamp(22px, 5vw, 64px);
  --sortie: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--fond);
  color: var(--encre);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--laiton); color: var(--fond-clair); }

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

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

:focus-visible { outline: 1px solid var(--laiton); outline-offset: 4px; }

.evasion {
  position: fixed; top: -100px; left: var(--marge);
  background: var(--fond); color: var(--encre);
  padding: 10px 18px; z-index: 200; border: 1px solid var(--filet);
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
}
.evasion:focus { top: 12px; }

/* Transitions de page (navigateurs compatibles, fondu discret) */
@view-transition { navigation: auto; }
::view-transition-old(root),
::view-transition-new(root) { animation-duration: 0.18s; }

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

.entete {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 26px var(--marge);
  transition: padding 0.5s var(--sortie), background-color 0.5s ease, border-color 0.5s ease;
  border-bottom: 1px solid transparent;
}
.entete.voilee {
  padding-top: 14px; padding-bottom: 14px;
  background: rgba(253, 252, 250, 0.82);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  backdrop-filter: blur(16px) saturate(1.2);
  border-bottom-color: var(--filet);
}

.logo, .pied-logo {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 26px;
  letter-spacing: 0.12em;
  color: var(--encre);
}
.point { color: var(--laiton); }

.logo { display: inline-block; line-height: 1.1; }
.logo-sous {
  display: block;
  font-family: var(--sans);
  font-size: 8.5px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--pierre);
  margin-top: 3px;
  white-space: nowrap;
}

.nav ul { display: flex; gap: 34px; margin: 0; padding: 0; list-style: none; }
.nav a {
  font-size: 10.5px; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--pierre);
  padding-bottom: 4px;
  background: linear-gradient(var(--laiton), var(--laiton)) left bottom / 0 1px no-repeat;
  transition: color 0.4s ease, background-size 0.5s var(--sortie);
}
.nav a:hover { color: var(--encre); background-size: 100% 1px; }
.nav a[aria-current="page"] { color: var(--encre); background-size: 100% 1px; }

.menu-btn { display: none; }

/* --------------------------------------------------------------------------
   Accueil — héros typographique
   -------------------------------------------------------------------------- */

.heros {
  min-height: 100svh;
  display: grid; place-items: center;
  position: relative;
  text-align: center;
  background: radial-gradient(120% 90% at 50% 30%, var(--fond-clair) 0%, var(--fond) 68%);
  overflow: hidden;
}
.heros::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)' opacity='0.5'/%3E%3C/svg%3E");
  opacity: 0.05;
  mix-blend-mode: multiply;
}
.heros-int { position: relative; z-index: 1; padding: 0 var(--marge); }

.heros h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(74px, 17vw, 210px);
  line-height: 1;
  letter-spacing: 0.13em;
  padding-left: 0.13em; /* compense l'espacement de la dernière lettre */
  animation: heros-entree 2s var(--sortie) both;
}
.heros h1 .point { font-weight: 400; }

.heros-filet {
  width: 56px; height: 1px; margin: 34px auto 30px;
  background: var(--laiton);
  transform-origin: center;
  animation: filet-entree 1.6s var(--sortie) 0.55s both;
}

.heros-sous {
  font-size: 12px; letter-spacing: 0.42em; text-transform: uppercase;
  color: var(--encre-douce);
  animation: fondu-entree 1.6s ease 0.75s both;
}
.heros-lieu {
  margin-top: 14px;
  font-family: var(--serif); font-style: italic; font-weight: 400;
  font-size: 19px; color: var(--pierre); letter-spacing: 0.04em;
  animation: fondu-entree 1.6s ease 1s both;
}

.heros-indice {
  position: absolute; left: 50%; bottom: 0; z-index: 1;
  width: 1px; height: 84px;
  background: linear-gradient(to bottom, transparent, var(--pierre));
  overflow: hidden;
  animation: fondu-entree 1.2s ease 1.6s both;
}
.heros-indice::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent, var(--encre));
  transform: translateY(-100%);
  animation: indice-defile 2.6s ease-in-out 2s infinite;
}

@keyframes heros-entree {
  from { opacity: 0; transform: translateY(26px); letter-spacing: 0.22em; }
  to   { opacity: 1; transform: none; letter-spacing: 0.13em; }
}
@keyframes filet-entree { from { transform: scaleX(0); } }
@keyframes fondu-entree { from { opacity: 0; } }
@keyframes indice-defile {
  0% { transform: translateY(-100%); }
  55%, 100% { transform: translateY(100%); }
}

/* --------------------------------------------------------------------------
   Accueil — les trois couvertures
   -------------------------------------------------------------------------- */

.couvertures {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(32px, 5vw, 80px);
  max-width: 1300px;
  margin: 0 auto;
  padding: clamp(70px, 12vh, 150px) var(--marge);
  border-top: 1px solid var(--filet);
}
.couverture { text-align: center; display: block; }

.couverture-cadre {
  display: block;
  background: var(--papier);
  border: 1px solid var(--filet);
  box-shadow: 0 18px 50px rgba(var(--ombre), 0.16), 0 2px 8px rgba(var(--ombre), 0.08);
  transition: transform 1.1s var(--sortie), box-shadow 1.1s var(--sortie);
}
.couverture:hover .couverture-cadre,
.couverture:focus-visible .couverture-cadre {
  transform: translateY(-10px);
  box-shadow: 0 34px 70px rgba(var(--ombre), 0.22), 0 4px 12px rgba(var(--ombre), 0.1);
}

.couverture-num {
  display: block; margin-top: 30px;
  font-family: var(--serif); font-style: italic;
  font-size: 16px; color: var(--laiton); letter-spacing: 0.1em;
}
.couverture-titre {
  margin: 4px 0 0;
  font-family: var(--serif); font-weight: 300;
  font-size: clamp(28px, 2.8vw, 40px);
  letter-spacing: 0.04em;
  color: var(--encre);
}
.couverture-cta {
  display: inline-block; margin-top: 10px;
  font-size: 9.5px; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--pierre);
  padding-bottom: 5px;
  background: linear-gradient(var(--laiton), var(--laiton)) center bottom / 24px 1px no-repeat;
  transition: color 0.5s ease, background-size 0.6s var(--sortie);
}
.couverture:hover .couverture-cta { color: var(--encre); background-size: 100% 1px; }

/* --------------------------------------------------------------------------
   Pages galerie — en-tête
   -------------------------------------------------------------------------- */

.page-tete {
  padding: max(20vh, 150px) var(--marge) clamp(40px, 7vh, 90px);
  max-width: 1240px; margin: 0 auto;
}
.page-meta {
  font-size: 10.5px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--laiton);
}
.page-tete h1 {
  margin: 14px 0 0;
  font-family: var(--serif); font-weight: 300;
  font-size: clamp(54px, 9vw, 128px);
  line-height: 0.98; letter-spacing: 0.02em;
}
.page-intro {
  margin: 26px 0 0;
  max-width: 52ch;
  font-family: var(--serif); font-style: italic;
  font-size: 21px; line-height: 1.55;
  color: var(--pierre);
}
.livre-pdf {
  text-align: center;
  margin: clamp(22px, 3.5vh, 38px) 0 0;
}

.btn-pdf {
  display: inline-block;
  font-size: 10px; letter-spacing: 0.26em; text-transform: uppercase;
  color: var(--encre-douce);
  border: 1px solid var(--filet);
  padding: 13px 22px;
  transition: color 0.4s ease, border-color 0.4s ease, background-color 0.4s ease;
}
.btn-pdf:hover {
  color: var(--fond-clair);
  background: var(--encre);
  border-color: var(--encre);
}
.btn-pdf-taille { color: var(--pierre); }
.btn-pdf:hover .btn-pdf-taille { color: rgba(250, 247, 240, 0.6); }

/* --------------------------------------------------------------------------
   Les planches (pages du PDF, pleine largeur)
   -------------------------------------------------------------------------- */

.planches {
  width: min(1680px, 96vw);
  margin: 0 auto;
  padding-top: max(16vh, 130px);
}

.planche {
  margin: 0 auto clamp(28px, 5vh, 70px);
  background: var(--papier);
  box-shadow: 0 16px 50px rgba(var(--ombre), 0.13), 0 2px 8px rgba(var(--ombre), 0.06);
}
.planche img { width: 100%; height: auto; }

/* Pages simples (couvertures) : centrées, à la largeur d'une demi-planche */
.planche-simple { width: min(50%, 840px); }

@media (max-width: 860px) {
  .planche-simple { width: 86%; }
}

.galerie-fin {
  padding: 4vh var(--marge) 16vh;
  text-align: center;
}
.galerie-fin a {
  font-family: var(--serif); font-style: italic;
  font-size: 22px; color: var(--pierre);
  transition: color 0.5s ease;
}
.galerie-fin a:hover { color: var(--encre); }

/* --------------------------------------------------------------------------
   Apparition au défilement
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.4s var(--sortie), transform 0.4s var(--sortie);
  transition-delay: var(--d, 0s);
}
.reveal.vu { opacity: 1; transform: none; }

/* --------------------------------------------------------------------------
   Pages de texte (à propos, contact)
   -------------------------------------------------------------------------- */

.prose {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--marge) 14vh;
}
.prose p {
  font-family: var(--serif);
  font-size: 21px; font-weight: 400;
  line-height: 1.75;
  color: var(--encre-douce);
  margin: 0 0 1.6em;
}
.prose .exergue {
  font-size: 26px; font-style: italic; color: var(--encre);
  line-height: 1.6;
}
.prose h2 {
  font-family: var(--serif); font-weight: 400;
  font-size: 15px; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--laiton);
  margin: 3.2em 0 1.2em;
}
.prose ul {
  list-style: none; padding: 0; margin: 0 0 1.6em;
}
.prose li {
  font-family: var(--serif); font-size: 20px; color: var(--encre-douce);
  padding: 14px 0; border-top: 1px solid var(--filet);
}
.prose li:last-child { border-bottom: 1px solid var(--filet); }

.fiches {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 5vw, 72px);
  max-width: 1000px;
  margin: 0 auto; padding: 0 var(--marge) 6vh;
}
.fiche { border-top: 1px solid var(--filet); padding-top: 26px; }
.fiche h2 {
  margin: 0 0 4px;
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(26px, 2.6vw, 34px); letter-spacing: 0.03em;
}
.fiche .role {
  font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--laiton);
}
.fiche p { margin: 22px 0 0; }
.fiche a {
  display: block;
  font-family: var(--serif); font-size: 20px; color: var(--encre-douce);
  padding: 10px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.4s ease, border-color 0.4s ease;
  width: fit-content;
}
.fiche a:hover { color: var(--encre); border-bottom-color: var(--laiton); }

.adresse-bloc {
  text-align: center;
  padding: 8vh var(--marge) 14vh;
}
.adresse-bloc .page-meta { margin-bottom: 18px; display: block; }
.adresse-bloc p {
  font-family: var(--serif); font-size: 24px; font-style: italic;
  color: var(--encre-douce); margin: 0; line-height: 1.7;
}

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

.pied { border-top: 1px solid var(--filet); }
.pied-int {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  padding: clamp(40px, 6vh, 72px) var(--marge);
  font-size: 10.5px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--pierre); line-height: 2.1;
}
.pied-col { display: flex; flex-direction: column; gap: 2px; }
.pied-logo { font-size: 20px; margin-bottom: 10px; }
.pied a { transition: color 0.4s ease; width: fit-content; }
.pied a:hover { color: var(--encre); }
.pied .insta { margin-top: 8px; }
.pied .insta svg { display: block; }

/* --------------------------------------------------------------------------
   Page 404
   -------------------------------------------------------------------------- */

.perdu {
  min-height: 100svh; display: grid; place-items: center; text-align: center;
  padding: 0 var(--marge);
}
.perdu h1 { font-family: var(--serif); font-weight: 300; font-size: clamp(80px, 18vw, 200px); margin: 0; }
.perdu p { font-family: var(--serif); font-style: italic; font-size: 22px; color: var(--pierre); }
.perdu a { border-bottom: 1px solid var(--laiton); color: var(--encre); }

/* --------------------------------------------------------------------------
   Mobile
   -------------------------------------------------------------------------- */

@media (max-width: 860px) {
  .entete { align-items: center; }

  .menu-btn {
    display: flex; flex-direction: column; gap: 7px;
    background: none; border: 0; padding: 10px 0;
    cursor: pointer; z-index: 120;
  }
  .menu-btn span {
    display: block; width: 26px; height: 1px;
    background: var(--encre);
    transition: transform 0.5s var(--sortie), opacity 0.4s ease;
  }
  .menu-btn[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-btn[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

  .nav {
    position: fixed; inset: 0; z-index: 110;
    display: grid; place-items: center;
    background: rgba(253, 252, 250, 0.96);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    opacity: 0; visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease;
  }
  .nav.ouverte { opacity: 1; visibility: visible; }
  .nav ul { flex-direction: column; align-items: center; gap: 30px; }
  .nav a { font-family: var(--serif); font-size: 30px; font-weight: 300; text-transform: none; letter-spacing: 0.06em; }

  .couvertures { grid-template-columns: 1fr; max-width: 420px; }

  .fiches { grid-template-columns: 1fr; }
  .pied-int { grid-template-columns: 1fr; gap: 26px; }
}

@media (max-width: 520px) {
  .heros h1 { font-size: clamp(52px, 19vw, 90px); letter-spacing: 0.1em; padding-left: 0.1em; }
  .heros-sous { font-size: 10px; letter-spacing: 0.28em; text-wrap: balance; }
  .heros-lieu { font-size: 17px; }
  .logo { font-size: 22px; }
}

/* --------------------------------------------------------------------------
   Mouvement réduit
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}