/* =========================================================================
   Fraternité Vladimir-Ghika — système de design
   Clair-obscur : la nuit, la flamme, l’or. Deux thèmes, un seul jeu de jetons.
   ========================================================================= */

/* --- 1. Jetons ---------------------------------------------------------- */

:root {
  /* Palette de base, indépendante du thème */
  --or: #c9a15c;
  --or-clair: #ecd3a3;
  --or-profond: #8a6b2e;
  --pourpre: #6b3557;
  --braise: #9a2c22;

  /* Typographie */
  --f-display: 'Cormorant Garamond', 'Iowan Old Style', 'Times New Roman', serif;
  --f-body: 'Spectral', Georgia, 'Times New Roman', serif;
  --f-ui: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --t-hero: clamp(2.6rem, 6.6vw, 6.1rem);
  --t-h1: clamp(2.5rem, 6.4vw, 5.4rem);
  --t-h2: clamp(2rem, 4.4vw, 3.7rem);
  --t-h3: clamp(1.35rem, 2.1vw, 1.95rem);
  --t-lede: clamp(1.12rem, 1.7vw, 1.45rem);
  --t-body: clamp(1.02rem, .42vw + .92rem, 1.15rem);
  --t-small: .84rem;
  --t-micro: .72rem;

  /* Rythme */
  --shell: 1280px;
  --shell-lu: 720px;
  --gut: clamp(1.25rem, 4vw, 3.5rem);
  --sec: clamp(4rem, 9vw, 9rem);
  --r: 2px;

  /* Mouvement */
  --ease: cubic-bezier(.16, 1, .3, 1);
  --ease-io: cubic-bezier(.65, .05, .36, 1);
  --dur: .9s;

  --header-h: 76px;
}

/* Thème nuit — le défaut */
:root,
[data-theme='nuit'] {
  --bg-0: #080605;
  --bg-1: #0d0a07;
  --bg-2: #14100b;
  --bg-3: #1d1710;
  --txt: #e9e0d1;
  --txt-doux: rgba(233, 224, 209, .64);
  --txt-faible: rgba(233, 224, 209, .55);
  --trait: rgba(233, 224, 209, .14);
  --trait-fort: rgba(201, 161, 92, .38);
  --voile: rgba(8, 6, 5, .82);
  --lueur: rgba(201, 161, 92, .16);
  --accent: var(--or);
  --accent-clair: var(--or-clair);
  --img-lum: .88;
  color-scheme: dark;
}

/* Thème parchemin — pour la lecture longue */
[data-theme='parchemin'] {
  --bg-0: #f6f0e5;
  --bg-1: #f1eadd;
  --bg-2: #eae1d0;
  --bg-3: #e2d7c2;
  --txt: #1f1913;
  --txt-doux: rgba(31, 25, 19, .7);
  --txt-faible: rgba(31, 25, 19, .68);
  --trait: rgba(31, 25, 19, .14);
  --trait-fort: rgba(138, 107, 46, .4);
  --voile: rgba(246, 240, 229, .86);
  --lueur: rgba(176, 138, 60, .14);
  --accent: #8a6420;
  --accent-clair: #6d4d15;
  --img-lum: 1;
  color-scheme: light;
}

/* --- 2. Réinitialisation ------------------------------------------------ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1.5rem);
  /* `clip` et non `hidden` : `hidden` ferait de l’élément un conteneur de
     défilement, ce qui casse position:sticky et window.scrollY. */
  overflow-x: clip;
}

body {
  margin: 0;
  background: var(--bg-0);
  color: var(--txt);
  font-family: var(--f-body);
  font-size: var(--t-body);
  line-height: 1.72;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
  transition: background-color .6s var(--ease), color .6s var(--ease);
}

body.is-locked { overflow: hidden; }

img, picture, svg, video { display: block; max-width: 100%; }
img { height: auto; }

h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 400;
  line-height: 1.03;
  letter-spacing: -.015em;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0 0 1.15em; text-wrap: pretty; }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }

button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }

::selection { background: var(--or); color: var(--bg-0); }

:focus-visible {
  outline: 2px solid var(--or-clair);
  outline-offset: 3px;
  border-radius: 1px;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}

.skip {
  position: fixed; top: .75rem; left: .75rem; z-index: 999;
  transform: translateY(-200%);
  background: var(--or); color: #0b0806;
  padding: .7rem 1.2rem; font-family: var(--f-ui); font-size: var(--t-small);
  transition: transform .3s var(--ease);
}
.skip:focus { transform: none; }

/* Grain de pellicule : donne du corps aux aplats sombres. */
body::after {
  content: '';
  position: fixed; inset: -50%;
  z-index: 900;
  pointer-events: none;
  opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
  animation: grain 7s steps(6) infinite;
}
[data-theme='parchemin'] body::after { opacity: .035; mix-blend-mode: multiply; }

@keyframes grain {
  0%   { transform: translate(0, 0); }
  20%  { transform: translate(-3%, 2%); }
  40%  { transform: translate(2%, -3%); }
  60%  { transform: translate(-2%, -2%); }
  80%  { transform: translate(3%, 1%); }
  100% { transform: translate(0, 0); }
}

/* --- 3. Structure ------------------------------------------------------- */

.shell {
  width: min(100% - (var(--gut) * 2), var(--shell));
  margin-inline: auto;
}

.lede {
  font-size: var(--t-lede);
  line-height: 1.6;
  color: var(--txt-doux);
  max-width: 46ch;
  margin-block: 1.6rem 0;
}

.eyebrow {
  display: flex; align-items: center; gap: .8rem;
  font-family: var(--f-ui);
  font-size: var(--t-micro);
  font-weight: 500;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.5rem;
}
.eyebrow::after {
  content: ''; flex: 1; height: 1px; max-width: 5rem;
  background: linear-gradient(90deg, var(--trait-fort), transparent);
}
.eyebrow--light { color: var(--or-clair); }
.eyebrow__num {
  font-family: var(--f-display); font-size: 1.4em; letter-spacing: 0;
  color: var(--txt-faible);
}

/* --- 4. Boutons --------------------------------------------------------- */

.btn {
  --btn-bg: transparent;
  --btn-fg: var(--txt);
  --btn-bd: var(--trait-fort);
  position: relative;
  display: inline-flex; align-items: center; gap: .6rem;
  padding: .95rem 1.9rem;
  font-family: var(--f-ui); font-size: .8rem; font-weight: 500;
  letter-spacing: .13em; text-transform: uppercase;
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 1px solid var(--btn-bd);
  border-radius: var(--r);
  overflow: hidden;
  isolation: isolate;
  transition: color .5s var(--ease), border-color .5s var(--ease), transform .5s var(--ease);
  will-change: transform;
}
.btn::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: var(--or);
  transform: scaleY(0); transform-origin: bottom;
  transition: transform .55s var(--ease);
}
.btn:hover::before, .btn:focus-visible::before { transform: scaleY(1); transform-origin: top; }
.btn:hover, .btn:focus-visible { color: #0b0806; border-color: var(--or); }

.btn--ghost { --btn-bd: var(--trait); }
.btn--gold { --btn-bg: var(--or); --btn-fg: #0b0806; --btn-bd: var(--or); }
.btn--gold::before { background: var(--or-clair); }
.btn--gold:hover, .btn--gold:focus-visible { color: #0b0806; border-color: var(--or-clair); }

.btn i {
  display: inline-block; width: 1.1em; height: 1px; background: currentColor;
  position: relative; transition: transform .4s var(--ease);
}
.btn i::after {
  content: ''; position: absolute; right: 0; top: -3px;
  width: 7px; height: 7px; border-top: 1px solid currentColor; border-right: 1px solid currentColor;
  transform: rotate(45deg);
}
.btn:hover i { transform: translateX(4px); }

/* --- 5. En-tête --------------------------------------------------------- */

.header {
  position: fixed; inset: 0 0 auto; z-index: 500;
  height: var(--header-h);
  transition: background-color .5s var(--ease), border-color .5s var(--ease), transform .55s var(--ease);
  border-bottom: 1px solid transparent;
}
.header::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: var(--voile);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  opacity: 0; transition: opacity .5s var(--ease);
}
.header.is-stuck::before { opacity: 1; }
.header.is-stuck { border-bottom-color: var(--trait); }
.header.is-hidden { transform: translateY(-105%); }

.header__inner {
  width: min(100% - (var(--gut) * 2), 1560px);
  margin-inline: auto; height: 100%;
  display: flex; align-items: center; gap: clamp(1rem, 3vw, 3rem);
}

.brand { display: flex; align-items: center; gap: .7rem; flex: none; }
.brand__mark { width: 30px; height: 35px; color: var(--txt); transition: color .4s; }
.brand:hover .brand__mark { color: var(--or); }
.brand__text { display: flex; flex-direction: column; line-height: 1; }
.brand__name {
  font-family: var(--f-display); font-size: 1.28rem; letter-spacing: .02em;
}
.brand__sub {
  font-family: var(--f-ui); font-size: .58rem; font-weight: 500;
  letter-spacing: .3em; text-transform: uppercase; color: var(--txt-faible);
  margin-top: .28rem;
}

.nav { margin-left: auto; }
.nav__list { display: flex; align-items: center; gap: clamp(.5rem, 1.6vw, 1.6rem); }
.nav__item { position: relative; }

.nav__link {
  display: flex; align-items: center; gap: .4rem;
  padding: .6rem .2rem;
  font-family: var(--f-ui); font-size: .78rem; font-weight: 500;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--txt-doux);
  transition: color .35s var(--ease);
}
.nav__item.is-current > .nav__link, .nav__item:hover > .nav__link { color: var(--txt); }
.nav__link::after {
  content: ''; position: absolute; left: .2rem; right: .2rem; bottom: .35rem;
  height: 1px; background: var(--or);
  transform: scaleX(0); transform-origin: right;
  transition: transform .45s var(--ease);
}
.nav__item:hover > .nav__link::after,
.nav__item.is-current > .nav__link::after { transform: scaleX(1); transform-origin: left; }

.nav__chev {
  width: 5px; height: 5px; border-right: 1px solid currentColor; border-bottom: 1px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px); opacity: .5;
  transition: transform .35s var(--ease);
}
.nav__item:hover .nav__chev { transform: rotate(45deg) translate(1px, 1px); opacity: 1; }

/* Panneau déroulant */
.megamenu {
  position: absolute; top: calc(100% + .1rem); left: 50%;
  translate: -50% 0;
  width: min(46rem, 80vw);
  opacity: 0; visibility: hidden;
  transform: translateY(-8px);
  transition: opacity .4s var(--ease), transform .4s var(--ease), visibility .4s;
  padding-top: .9rem;
}
.nav__item:hover .megamenu, .nav__item.is-open .megamenu {
  opacity: 1; visibility: visible; transform: none;
}
.megamenu__inner {
  display: grid; grid-template-columns: 13rem 1fr; gap: 2rem;
  padding: 2rem;
  background: color-mix(in srgb, var(--bg-1) 96%, transparent);
  border: 1px solid var(--trait);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.megamenu__eyebrow {
  font-family: var(--f-ui); font-size: var(--t-micro); font-weight: 500;
  letter-spacing: .24em; text-transform: uppercase; color: var(--accent);
  margin: 0 0 1rem;
}
.megamenu__all {
  font-family: var(--f-ui); font-size: .78rem; color: var(--txt-doux);
  display: inline-flex; gap: .45rem; align-items: center;
  transition: color .3s, gap .3s;
}
.megamenu__all:hover { color: var(--or); gap: .8rem; }
.megamenu__list { display: grid; gap: .3rem; }
.megamenu__link {
  display: block; padding: .75rem .9rem;
  border-left: 1px solid transparent;
  transition: background-color .35s var(--ease), border-color .35s var(--ease), padding-left .35s var(--ease);
}
.megamenu__link:hover {
  background: color-mix(in srgb, var(--or) 8%, transparent);
  border-left-color: var(--or);
  padding-left: 1.2rem;
}
.megamenu__label { display: block; font-family: var(--f-display); font-size: 1.22rem; }
.megamenu__hint {
  display: block; font-size: .82rem; color: var(--txt-faible);
  margin-top: .1rem; line-height: 1.5;
}

.header__actions { display: flex; align-items: center; gap: .8rem; flex: none; }

.theme-toggle {
  display: flex; align-items: center; gap: .5rem;
  padding: .5rem .8rem;
  border: 1px solid var(--trait);
  border-radius: 999px;
  font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .14em; text-transform: uppercase; color: var(--txt-doux);
  transition: border-color .4s, color .4s;
}
.theme-toggle:hover { border-color: var(--trait-fort); color: var(--txt); }
.theme-toggle__flame {
  width: 9px; height: 12px;
  background: radial-gradient(ellipse at 50% 75%, var(--or-clair), var(--or) 45%, transparent 72%);
  border-radius: 50% 50% 45% 45%;
  filter: blur(.2px);
  animation: flicker 2.6s ease-in-out infinite;
}
@keyframes flicker {
  0%, 100% { transform: scale(1) translateY(0); opacity: 1; }
  35%      { transform: scale(1.12, .94) translateY(-.5px); opacity: .82; }
  60%      { transform: scale(.94, 1.08) translateY(.5px); opacity: 1; }
}

.burger { display: none; width: 40px; height: 40px; position: relative; }
.burger span {
  position: absolute; left: 9px; right: 9px; height: 1px; background: var(--txt);
  transition: transform .45s var(--ease), opacity .3s;
}
.burger span:nth-child(1) { top: 15px; }
.burger span:nth-child(2) { top: 20px; }
.burger span:nth-child(3) { top: 25px; }
.burger[aria-expanded='true'] span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.burger[aria-expanded='true'] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded='true'] span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* Tiroir mobile */
.drawer {
  position: fixed; inset: 0; z-index: 480;
  background: var(--bg-0);
  padding: calc(var(--header-h) + 2rem) var(--gut) 3rem;
  overflow-y: auto;
  opacity: 0; visibility: hidden;
  transition: opacity .5s var(--ease), visibility .5s;
}
.drawer[hidden] { display: block; }
.drawer.is-open { opacity: 1; visibility: visible; }
.drawer__inner { max-width: 34rem; }
.drawer__group {
  border-top: 1px solid var(--trait); padding: 1.5rem 0;
  opacity: 0; transform: translateY(20px);
  transition: opacity .6s var(--ease) calc(var(--i) * .07s + .12s), transform .6s var(--ease) calc(var(--i) * .07s + .12s);
}
.drawer.is-open .drawer__group { opacity: 1; transform: none; }
.drawer__head {
  display: block; font-family: var(--f-display); font-size: clamp(1.8rem, 8vw, 2.6rem);
  margin-bottom: .6rem;
}
.drawer__list { display: grid; gap: .1rem; }
.drawer__list a {
  display: block; padding: .4rem 0;
  font-family: var(--f-ui); font-size: .88rem; color: var(--txt-doux);
}
.drawer__list a:hover { color: var(--or); }
.drawer__cta { margin-top: 2rem; width: 100%; justify-content: center; }
.drawer__quote {
  margin-top: 2.5rem; font-family: var(--f-display); font-style: italic;
  font-size: 1.3rem; color: var(--txt-faible); line-height: 1.4;
}

/* Barre de progression de lecture */
.progress {
  position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 510;
  background: transparent;
}
.progress__bar {
  display: block; height: 100%; width: 100%;
  transform: scaleX(0); transform-origin: left;
  background: linear-gradient(90deg, var(--or-profond), var(--or), var(--or-clair));
}

/* --- 6. Fil d’Ariane ---------------------------------------------------- */

.breadcrumb {
  padding-top: calc(var(--header-h) + 1.6rem);
  padding-bottom: .2rem;
  font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--txt-faible);
  position: relative; z-index: 3;
}
.breadcrumb + main .phero { padding-top: 2.5rem; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: .55rem; }
.breadcrumb li + li::before { content: '·'; margin-right: .55rem; color: var(--trait-fort); }
.breadcrumb a { transition: color .3s; }
.breadcrumb a:hover { color: var(--or); }
.breadcrumb [aria-current] { color: var(--txt-doux); }

/* --- 7. Médias et révélations ------------------------------------------- */

.media {
  position: relative; margin: 0; overflow: hidden;
  aspect-ratio: var(--ratio, 1.5);
  background-color: var(--bg-2);
  background-image: var(--lqip);
  background-size: cover; background-position: center;
}
.media picture { display: block; height: 100%; }
.media img {
  width: 100%; height: 100%; object-fit: cover;
  object-position: var(--focus, center);
  filter: brightness(var(--img-lum)) saturate(1.02);
  transition: opacity 1.1s var(--ease), transform 1.6s var(--ease);
}
/* L’état masqué n’est posé que si le script tourne : une image ne doit jamais
   rester invisible parce que JavaScript a échoué. */
html:not(.no-js) .media img:not(.is-loaded) { opacity: 0; transform: scale(1.06); }

/* Ramène une image froide dans la gamme chaude du site. */
.media--chaud img { filter: brightness(calc(var(--img-lum) * .92)) saturate(.72) sepia(.22) contrast(1.08); }

/* Révélation par volet */
[data-reveal='media'] { transition: clip-path 1.3s var(--ease); }
html:not(.no-js) [data-reveal='media']:not(.is-in) { clip-path: inset(0 0 100% 0); }

[data-reveal]:not([data-reveal='media']) {
  transition: opacity .95s var(--ease) calc(var(--i, 0) * .085s), transform .95s var(--ease) calc(var(--i, 0) * .085s);
}
html:not(.no-js) [data-reveal]:not([data-reveal='media']):not(.is-in) {
  opacity: 0; transform: translateY(26px);
}

[data-reveal-group] > * {
  transition: opacity .85s var(--ease) calc(var(--ci, 0) * .07s), transform .85s var(--ease) calc(var(--ci, 0) * .07s);
}
html:not(.no-js) [data-reveal-group]:not(.is-in) > * { opacity: 0; transform: translateY(20px); }

/* L’écran d’ouverture n’a pas de moyen de se retirer sans script. */
.no-js .intro { display: none; }

/* Titres découpés en mots */
.split .w { display: inline-block; overflow: hidden; vertical-align: bottom; padding-bottom: .06em; }
.split .w__i {
  display: inline-block;
  transition: transform 1s var(--ease) calc(var(--wi, 0) * .045s);
}
html:not(.no-js) .split:not(.is-in) .w__i { transform: translateY(110%); }

/* --- 8. Héros d’accueil ------------------------------------------------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: grid; align-items: end;
  /* Réserve la hauteur de l’en-tête : sans cela, un titre sur quatre lignes
     repousse l’emblème sous la barre de navigation. */
  padding-top: calc(var(--header-h) + 1.5rem);
  padding-bottom: clamp(3rem, 8vh, 6rem);
  overflow: hidden;
  isolation: isolate;
}
.hero__bg { position: absolute; inset: -8% 0 -8%; z-index: -3; }
.hero__bg .media { height: 100%; aspect-ratio: auto; }
.hero__bg img {
  animation: kenburns 26s ease-in-out infinite alternate;
  filter: brightness(.62) saturate(.94) contrast(1.06);
}
@keyframes kenburns {
  from { transform: scale(1.02) translate3d(0, 0, 0); }
  to   { transform: scale(1.14) translate3d(-1.5%, -1%, 0); }
}

.hero__veil {
  position: absolute; inset: 0; z-index: -2;
  background:
    linear-gradient(to top, var(--bg-0) 2%, rgba(8, 6, 5, .62) 34%, rgba(8, 6, 5, .24) 62%, rgba(8, 6, 5, .66) 100%),
    linear-gradient(100deg, rgba(8, 6, 5, .93) 0%, rgba(8, 6, 5, .66) 36%, rgba(8, 6, 5, .2) 66%, transparent 86%);
}
/* En thème parchemin, le voile doit éclaircir la photo au lieu de l’assombrir,
   sans quoi le titre — devenu sombre — se perd dans l’image. */
[data-theme='parchemin'] .hero__bg img { filter: brightness(1.06) saturate(.62) contrast(.9); }
[data-theme='parchemin'] .hero__veil {
  background:
    linear-gradient(to top, var(--bg-0) 2%, rgba(246, 240, 229, .72) 34%, rgba(246, 240, 229, .5) 62%, rgba(246, 240, 229, .8) 100%),
    linear-gradient(100deg, rgba(246, 240, 229, .95) 0%, rgba(246, 240, 229, .8) 36%, rgba(246, 240, 229, .42) 66%, rgba(246, 240, 229, .1) 92%);
}
[data-theme='parchemin'] .hero__quote {
  text-shadow: 0 2px 40px rgba(246, 240, 229, .95), 0 1px 4px rgba(246, 240, 229, .7);
}
[data-theme='parchemin'] .hero__lead { text-shadow: 0 1px 20px rgba(246, 240, 229, .95); }
[data-theme='parchemin'] .hero__quote em { color: var(--accent); }

/* Halo de cierge qui suit le pointeur */
.hero__glow {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(38rem 30rem at var(--mx, 62%) var(--my, 38%), var(--lueur), transparent 68%);
  opacity: .9;
  transition: background-position .3s linear;
}

.hero__inner { position: relative; z-index: 2; }

.hero__mark {
  width: 64px; height: 76px; color: var(--or-clair);
  margin-bottom: clamp(1rem, 2.6vh, 1.7rem);
  opacity: .9;
}

.hero__quote {
  font-family: var(--f-display);
  font-size: var(--t-hero);
  font-weight: 300;
  line-height: .96;
  letter-spacing: -.026em;
  max-width: 13ch;
  margin: 0;
  /* La photo derrière le titre a des zones claires : une ombre très diffuse
     garantit le contraste sans rien alourdir visuellement. */
  text-shadow: 0 2px 46px rgba(8, 6, 5, .95), 0 1px 4px rgba(8, 6, 5, .55);
}
.hero__quote em {
  font-style: italic;
  color: var(--or-clair);
  display: inline-block;
}
.hero__attrib {
  font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .28em; text-transform: uppercase;
  color: var(--txt-faible);
  margin: 1.8rem 0 0;
  display: flex; align-items: center; gap: .9rem;
}
.hero__attrib::before {
  content: ''; width: 3rem; height: 1px; background: var(--trait-fort);
}

.hero__lead {
  font-size: var(--t-lede); line-height: 1.6; color: var(--txt-doux);
  max-width: 42ch; margin: clamp(1.8rem, 4vh, 2.8rem) 0 0;
  text-shadow: 0 1px 24px rgba(8, 6, 5, .9);
}
.hero__actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2.4rem; }

.hero__scroll {
  position: absolute; bottom: 2rem; right: var(--gut); z-index: 3;
  display: flex; flex-direction: column; align-items: center; gap: .9rem;
  font-family: var(--f-ui); font-size: var(--t-micro); letter-spacing: .22em;
  text-transform: uppercase; color: var(--txt-faible);
  writing-mode: vertical-rl;
}
.hero__scroll::after {
  content: ''; width: 1px; height: 4rem;
  background: linear-gradient(var(--trait-fort), transparent);
  animation: descend 2.4s var(--ease) infinite;
  transform-origin: top;
}
@keyframes descend {
  0%      { transform: scaleY(0); opacity: 0; }
  35%     { opacity: 1; }
  60%,100%{ transform: scaleY(1); opacity: 0; }
}

/* --- 9. Héros de page intérieure --------------------------------------- */

.phero {
  position: relative;
  padding-block: clamp(4rem, 12vh, 8rem) clamp(3.5rem, 9vh, 6.5rem);
  overflow: hidden;
  isolation: isolate;
  border-bottom: 1px solid var(--trait);
}
.phero:not(.breadcrumb + main .phero) { padding-top: calc(var(--header-h) + clamp(3.5rem, 10vh, 7rem)); }
.phero__bg { position: absolute; inset: -10% 0; z-index: -3; }
.phero__bg .media { height: 100%; aspect-ratio: auto; }
.phero__bg img { filter: brightness(.4) saturate(.8) contrast(1.05); }
.phero__veil {
  position: absolute; inset: 0; z-index: -2;
  background:
    linear-gradient(to top, var(--bg-0), rgba(8, 6, 5, .6) 55%, rgba(8, 6, 5, .78)),
    radial-gradient(60% 60% at 20% 30%, var(--lueur), transparent 70%);
}
[data-theme='parchemin'] .phero__veil {
  background:
    linear-gradient(to top, var(--bg-0), rgba(246, 240, 229, .72) 55%, rgba(246, 240, 229, .84)),
    radial-gradient(60% 60% at 20% 30%, var(--lueur), transparent 70%);
}
.phero__inner { position: relative; z-index: 2; max-width: 58rem; }
.phero__title { font-size: var(--t-h1); }
.phero__lead {
  font-size: var(--t-lede); line-height: 1.6; color: var(--txt-doux);
  max-width: 48ch; margin-top: 1.8rem;
}
.phero__fade {
  position: absolute; inset: auto 0 0; height: 8rem; z-index: -1;
  background: linear-gradient(transparent, var(--bg-0));
}
.phero--clair { --img-lum: .55; }

/* --- 10. Sections riches ------------------------------------------------ */

.section { padding-block: var(--sec); position: relative; }
.section--tinted { background: var(--bg-1); }
.section--deep { background: var(--bg-2); }

.feature { padding-block: var(--sec); position: relative; }
.feature__grid {
  display: grid; gap: clamp(2rem, 6vw, 5.5rem);
  grid-template-columns: 1fr 1fr; align-items: center;
}
.feature--right .feature__media { order: 2; }
.feature__media { position: relative; }
.feature__media .media { aspect-ratio: var(--ratio, .84); }
.feature__caption {
  font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .1em; color: var(--txt-faible);
  margin-top: .9rem; max-width: 34ch;
}
.feature__title { font-size: var(--t-h2); margin-bottom: 1.8rem; }
.feature .btn { margin-top: 2.2rem; }

.rich { color: var(--txt-doux); }
.rich p { max-width: 46ch; }
.rich strong { color: var(--txt); font-weight: 600; }
.rich em { color: var(--accent-clair); font-style: italic; }
.rich ul { display: grid; gap: .9rem; margin: 1.6rem 0; }
.rich ul li { position: relative; padding-left: 1.7rem; max-width: 46ch; }
.rich ul li::before {
  content: '✦'; position: absolute; left: 0; top: .05em;
  color: var(--accent); font-size: .7em;
}

/* Prose longue */
.prose {
  max-width: var(--shell-lu);
  margin-inline: auto;
  font-size: clamp(1.06rem, .5vw + .95rem, 1.22rem);
  line-height: 1.85;
  color: var(--txt-doux);
}
.prose > * + * { margin-top: 1.35em; }
.prose h2 {
  font-size: clamp(1.9rem, 3.4vw, 2.9rem);
  color: var(--txt);
  margin-top: 2.4em; margin-bottom: -.2em;
  padding-top: 1.4em;
  border-top: 1px solid var(--trait);
}
.prose h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.prose h3 {
  font-size: var(--t-h3); color: var(--txt); margin-top: 2em;
  font-family: var(--f-display);
}
.prose strong { color: var(--txt); font-weight: 600; }
.prose em { font-style: italic; }
.prose a:not(.btn) {
  color: var(--accent-clair);
  border-bottom: 1px solid var(--trait-fort);
  transition: border-color .3s, color .3s;
}
.prose a:not(.btn):hover { border-bottom-color: currentColor; }
.prose ul, .prose ol { display: grid; gap: .8rem; margin-block: 1.6em; }
.prose ul > li { position: relative; padding-left: 1.8rem; }
.prose ul > li::before {
  content: ''; position: absolute; left: .35rem; top: .82em;
  width: 5px; height: 5px; background: var(--accent); transform: rotate(45deg);
}
.prose ol { counter-reset: p; }
.prose ol > li { position: relative; padding-left: 2.6rem; counter-increment: p; }
.prose ol > li::before {
  content: counter(p, decimal-leading-zero);
  position: absolute; left: 0; top: .1em;
  font-family: var(--f-ui); font-size: .72rem; letter-spacing: .1em;
  color: var(--accent);
}
.prose--large { max-width: 860px; }

/* Lettrine des ouvertures de chapitre */
.dropcap::first-letter {
  float: left;
  font-family: var(--f-display);
  font-size: 4.1em;
  line-height: .82;
  padding: .06em .1em 0 0;
  color: var(--accent);
  font-weight: 400;
}

/* Citation détachée */
.pull {
  margin: clamp(2.5rem, 6vw, 4.5rem) auto;
  max-width: min(100%, 46rem); text-align: center; position: relative;
}
.pull__mark {
  display: block;
  font-family: var(--f-display); font-size: 5rem; line-height: .4;
  color: var(--accent); opacity: .45; margin-bottom: .35em;
}
.pull blockquote { margin: 0; }
.pull blockquote p {
  font-family: var(--f-display);
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  font-style: italic; font-weight: 300;
  line-height: 1.24; color: var(--txt);
  /* Mesure exprimée dans la fonte de la citation elle-même. */
  max-width: 22ch; margin-inline: auto;
}
.pull figcaption {
  font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--txt-faible); margin-top: 1.5rem;
}
.pull--big { max-width: min(100%, 58rem); }
.pull--big blockquote p { font-size: clamp(2rem, 4.6vw, 3.6rem); max-width: 19ch; }

/* Cartes */
.grid-section { padding-block: var(--sec); }
.cards { display: grid; gap: clamp(1.2rem, 2.4vw, 2rem); margin-top: clamp(2.5rem, 5vw, 4rem); }
.cards--3 { grid-template-columns: repeat(3, 1fr); }
.cards--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  position: relative; display: flex; flex-direction: column;
  background: var(--bg-1);
  border: 1px solid var(--trait);
  overflow: hidden;
  transition: border-color .55s var(--ease), transform .55s var(--ease), background-color .55s var(--ease);
}
.card:hover { border-color: var(--trait-fort); transform: translateY(-5px); background: var(--bg-2); }
.card__media { overflow: hidden; }
.card__media .media { aspect-ratio: 1.42; }
.card__media img { transition: transform 1.2s var(--ease), opacity 1s var(--ease); }
.card:hover .card__media img { transform: scale(1.06); }
.card__body { padding: clamp(1.4rem, 2.4vw, 2.1rem); display: flex; flex-direction: column; flex: 1; }
.card__kicker {
  font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .22em; text-transform: uppercase; color: var(--accent);
  margin: 0 0 .9rem;
}
.card__title { font-size: var(--t-h3); margin-bottom: .8rem; }
.card__text { color: var(--txt-faible); font-size: .96rem; line-height: 1.65; flex: 1; }
.card__go {
  display: inline-flex; align-items: center; gap: .6rem; margin-top: 1.6rem;
  font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .2em; text-transform: uppercase; color: var(--txt-doux);
  transition: gap .4s var(--ease), color .4s;
}
.card__go i { width: 1.5rem; height: 1px; background: var(--trait-fort); transition: width .4s var(--ease), background-color .4s; }
.card:hover .card__go { gap: .9rem; color: var(--or); }
.card:hover .card__go i { width: 2.2rem; background: var(--or); }

/* Piliers */
.pillars { padding-block: var(--sec); background: var(--bg-1); }
.pillars__title { font-size: var(--t-h2); }
.pillars__list {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem);
  margin-top: clamp(2.8rem, 6vw, 4.5rem);
}
.pillar { position: relative; padding-top: 2.2rem; border-top: 1px solid var(--trait); }
.pillar__num {
  position: absolute; top: 1.6rem; right: 0;
  font-family: var(--f-display); font-size: 3.2rem; line-height: 1;
  color: var(--trait-fort); opacity: .6;
}
.pillar__title { font-size: var(--t-h3); margin-bottom: .8rem; max-width: 18ch; }
.pillar__text { color: var(--txt-faible); max-width: 40ch; }

/* Bandeau défilant */
.band {
  padding-block: clamp(2.5rem, 5vw, 4rem);
  border-block: 1px solid var(--trait);
  overflow: hidden;
  background: var(--bg-0);
  --band-dur: 64s;
}
.band__track {
  display: flex; width: max-content;
  animation: slide var(--band-dur) linear infinite;
}
.band:hover .band__track { animation-play-state: paused; }
.band__item {
  font-family: var(--f-display); font-style: italic;
  font-size: clamp(1.4rem, 2.6vw, 2.2rem);
  color: var(--txt-doux); white-space: nowrap;
  display: inline-flex; align-items: center; gap: 2.5rem; padding-right: 2.5rem;
}
.band__star { color: var(--or); font-size: .55em; font-style: normal; }
@keyframes slide { to { transform: translateX(-50%); } }

/* Chiffres */
.figures { padding-block: var(--sec); }
.figures__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(1.5rem, 3vw, 3rem); }
.figure { border-top: 1px solid var(--trait); padding-top: 1.6rem; }
.figure__value {
  font-family: var(--f-display); font-size: clamp(2.6rem, 5vw, 4.4rem);
  line-height: 1; color: var(--accent); margin: 0 0 .7rem;
  font-variant-numeric: tabular-nums;
}
.figure__suffix { font-size: .38em; letter-spacing: .04em; color: var(--txt-doux); }
.figure__label { font-size: .9rem; color: var(--txt-faible); line-height: 1.55; margin: 0; }

/* Appel à l’action */
.cta {
  position: relative; padding-block: clamp(5rem, 13vw, 10rem);
  overflow: hidden; isolation: isolate; text-align: center;
}
.cta__bg { position: absolute; inset: -12% 0; z-index: -3; }
.cta__bg .media { height: 100%; aspect-ratio: auto; }
.cta__bg img { filter: brightness(.34) saturate(.85); }
.cta__veil {
  position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(50% 60% at 50% 45%, rgba(201, 161, 92, .16), transparent 70%),
    linear-gradient(to bottom, var(--bg-0), rgba(8, 6, 5, .55) 40%, var(--bg-0));
}
[data-theme='parchemin'] .cta__veil {
  background:
    radial-gradient(50% 60% at 50% 45%, rgba(176, 138, 60, .2), transparent 70%),
    linear-gradient(to bottom, var(--bg-0), rgba(246, 240, 229, .68) 40%, var(--bg-0));
}
.cta__inner { position: relative; z-index: 2; display: grid; justify-items: center; }
.cta__mark { width: 66px; height: 78px; color: var(--or-clair); margin-bottom: 2rem; opacity: .85; }
.cta__title { font-size: var(--t-h2); max-width: 16ch; }
.cta__text { color: var(--txt-doux); max-width: 44ch; margin-top: 1.6rem; font-size: var(--t-lede); }
.cta__actions { display: flex; flex-wrap: wrap; gap: .9rem; justify-content: center; margin-top: 2.6rem; }

/* Sommaire ancré */
.toc {
  position: sticky; top: calc(var(--header-h) + 2rem);
  border-left: 1px solid var(--trait); padding-left: 1.4rem;
}
.toc__title {
  font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .22em; text-transform: uppercase; color: var(--accent);
  margin: 0 0 1.1rem;
}
.toc ol { display: grid; gap: .55rem; }
.toc a {
  font-family: var(--f-ui); font-size: .82rem; color: var(--txt-faible);
  line-height: 1.45; display: block;
  transition: color .3s, transform .3s var(--ease);
}
.toc a:hover, .toc a.is-active { color: var(--txt); transform: translateX(3px); }
.toc a.is-active { color: var(--or); }

.layout-lu {
  display: grid; grid-template-columns: 1fr minmax(0, var(--shell-lu)) 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  padding-block: var(--sec);
}
.layout-lu > .toc { grid-column: 1; justify-self: end; max-width: 15rem; }
.layout-lu > .prose { grid-column: 2; }
.layout-lu > .aside-lu { grid-column: 3; }

/* --- 11. Chronologie ---------------------------------------------------- */

.chrono { position: relative; padding-block: var(--sec) 0; }

.chrono__filters {
  position: sticky; top: var(--header-h); z-index: 60;
  display: flex; gap: .4rem; flex-wrap: wrap;
  padding-block: 1rem;
  background: var(--bg-0);
  margin-bottom: clamp(2rem, 5vw, 4rem);
}
/* Dégradé de sortie sous la barre, pour éviter une arête franche. */
.chrono__filters::after {
  content: ''; position: absolute; inset: 100% 0 auto; height: 2.5rem;
  background: linear-gradient(var(--bg-0), transparent);
  pointer-events: none;
}
.chip {
  padding: .5rem 1rem;
  border: 1px solid var(--trait); border-radius: 999px;
  font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .12em; text-transform: uppercase; color: var(--txt-faible);
  transition: color .35s, border-color .35s, background-color .35s;
}
.chip:hover { color: var(--txt); border-color: var(--trait-fort); }
.chip.is-active { background: var(--or); border-color: var(--or); color: #0b0806; }

.ere { position: relative; padding-bottom: clamp(3rem, 7vw, 6rem); }
.ere__head {
  display: grid; grid-template-columns: 6rem 1fr; gap: clamp(1.5rem, 4vw, 3rem);
  padding-block: clamp(2.5rem, 6vw, 5rem) clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--trait);
}
.ere__num {
  font-family: var(--f-display); font-size: clamp(2.6rem, 5vw, 4.2rem);
  line-height: .9; color: var(--trait-fort);
}
.ere__titre { font-size: clamp(1.9rem, 4vw, 3.2rem); }
.ere__meta {
  font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .2em; text-transform: uppercase; color: var(--accent);
  margin: 0 0 .9rem;
  display: flex; flex-wrap: wrap; gap: .8rem;
}
.ere__meta span + span::before { content: '·'; margin-right: .8rem; color: var(--trait-fort); }
.ere__resume { color: var(--txt-faible); max-width: 52ch; margin-top: 1.2rem; }

/* Le fil doré qui « brûle » au défilement */
.chrono__corps {
  position: relative;
  /* Position du rail, et écart entre le rail et le texte des jalons. */
  --rail: clamp(1.2rem, 4vw, 4rem);
  --rail-gap: clamp(1.4rem, 3vw, 3rem);
}
.fil {
  position: absolute; left: var(--rail); top: 0; bottom: 0;
  width: 1px; background: var(--trait);
}
.fil__flamme {
  position: absolute; inset: 0 auto 0 0; width: 1px;
  background: linear-gradient(var(--or-profond), var(--or) 60%, var(--or-clair));
  transform-origin: top; transform: scaleY(0);
}
.fil__flamme::after {
  content: ''; position: absolute; left: 50%; bottom: 0;
  width: 9px; height: 9px; translate: -50% 50%;
  border-radius: 50%;
  background: var(--or-clair);
  box-shadow: 0 0 14px 4px rgba(201, 161, 92, .55);
}

.ere__head { padding-left: calc(var(--rail) + var(--rail-gap)); }
.jalons { position: relative; padding-left: calc(var(--rail) + var(--rail-gap)); display: grid; }

.jalon {
  position: relative;
  display: grid; grid-template-columns: 11rem 1fr;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding-block: clamp(1.4rem, 2.6vw, 2.2rem);
  border-top: 1px solid var(--trait);
  transition: opacity .5s var(--ease), filter .5s var(--ease);
}
/* Pastille alignée sur le rail, quel que soit le retrait du texte. */
.jalon::before {
  content: ''; position: absolute;
  left: calc((var(--rail-gap) + 3px) * -1);
  top: calc(clamp(1.4rem, 2.6vw, 2.2rem) + .5em);
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--bg-0); border: 1px solid var(--trait-fort);
  transition: background-color .5s, box-shadow .5s, transform .5s var(--ease);
}
.jalon.is-in::before { background: var(--or); box-shadow: 0 0 0 4px color-mix(in srgb, var(--or) 18%, transparent); }
.jalon--phare::before {
  width: 11px; height: 11px;
  left: calc((var(--rail-gap) + 5px) * -1);
}
.jalon.is-off { opacity: .16; filter: saturate(0); pointer-events: none; }

.jalon__date {
  font-family: var(--f-ui); font-size: .74rem; font-weight: 500;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent); padding-top: .3em; margin: 0;
}
.jalon__titre { font-size: clamp(1.25rem, 2vw, 1.7rem); margin-bottom: .5rem; }
.jalon--phare .jalon__titre { font-size: clamp(1.5rem, 2.8vw, 2.3rem); color: var(--txt); }
.jalon--phare .jalon__titre::after {
  content: '✦'; font-size: .42em; color: var(--or); vertical-align: super; margin-left: .5em;
}
.jalon__texte { color: var(--txt-faible); max-width: 62ch; margin: 0; font-size: .99rem; }

/* Année flottante */
.chrono__annee {
  position: fixed; left: var(--gut); bottom: 2rem; z-index: 50;
  font-family: var(--f-display); font-size: clamp(3rem, 9vw, 7rem);
  line-height: 1; color: var(--txt);
  opacity: 0; pointer-events: none;
  mix-blend-mode: difference;
  transition: opacity .6s var(--ease);
  font-variant-numeric: tabular-nums;
}
.chrono__annee.is-visible { opacity: .18; }

/* --- 12. Parcours d’admission ------------------------------------------- */

.steps { padding-block: var(--sec); }
.steps__list { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.2rem, 2.5vw, 2.4rem); margin-top: clamp(2.5rem, 5vw, 4rem); }
.step {
  position: relative; display: flex; flex-direction: column;
  padding: clamp(1.6rem, 3vw, 2.6rem);
  background: var(--bg-1); border: 1px solid var(--trait);
  transition: border-color .5s var(--ease), transform .5s var(--ease);
}
.step:hover { border-color: var(--trait-fort); transform: translateY(-4px); }
.step__num {
  font-family: var(--f-display); font-size: clamp(3rem, 6vw, 5rem);
  line-height: .85; color: var(--trait-fort); margin-bottom: 1.4rem;
}
.step__title { font-size: var(--t-h3); margin-bottom: .8rem; }
.step__text { color: var(--txt-faible); flex: 1; font-size: .96rem; }
.step__go {
  margin-top: 1.8rem; font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .2em; text-transform: uppercase; color: var(--accent);
  display: inline-flex; gap: .5rem; align-items: center;
  transition: gap .35s var(--ease);
}
.step:hover .step__go { gap: .9rem; }

/* Engagements */
.engagements { display: grid; gap: clamp(1.5rem, 3vw, 2.5rem); }
.engagement {
  border-top: 1px solid var(--trait);
  padding-top: 1.6rem;
  display: grid; grid-template-columns: 2.5rem 1fr; gap: 1rem;
}
.engagement__mark { color: var(--accent); font-size: 1.1rem; line-height: 1.5; }
.engagement h3 { font-size: 1.22rem; margin-bottom: .5rem; font-family: var(--f-display); }
.engagement p { color: var(--txt-faible); margin: 0; font-size: .98rem; }

/* --- 13. Prière ---------------------------------------------------------- */

.oraison {
  position: relative;
  padding-block: var(--sec);
  background: var(--bg-0);
  transition: background-color .8s var(--ease);
}
.oraison__cierge {
  position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background: radial-gradient(28rem 34rem at 50% 22%, rgba(201, 161, 92, .12), transparent 70%);
  opacity: 0; transition: opacity 1.2s var(--ease);
}
.oraison.is-recueilli .oraison__cierge { opacity: 1; }
.oraison__inner { position: relative; z-index: 1; }
.oraison__texte {
  max-width: 38ch; margin-inline: auto;
  font-family: var(--f-display);
  font-size: clamp(1.35rem, 2.6vw, 1.95rem);
  line-height: 1.62; text-align: center; color: var(--txt-doux);
}
.oraison__texte p { margin-bottom: 1.5em; }
.oraison__texte p:first-child, .oraison__texte p:last-child {
  color: var(--accent-clair); font-style: italic;
}
.oraison.is-recueilli .oraison__texte { color: var(--txt); }
.oraison__toggle { margin-inline: auto; display: flex; }

.flamme {
  width: 22px; height: 34px; margin: 0 auto 2.5rem;
  background: radial-gradient(ellipse at 50% 78%, #fff6de 4%, var(--or-clair) 26%, var(--or) 52%, rgba(154, 44, 34, .5) 74%, transparent 82%);
  border-radius: 50% 50% 42% 42%;
  filter: blur(.4px);
  animation: flicker 3.4s ease-in-out infinite;
}

/* --- 14. Formulaire ------------------------------------------------------ */

.form { display: grid; gap: 1.6rem; max-width: 42rem; }
.champ { display: grid; gap: .5rem; }
.champ > label {
  font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .16em; text-transform: uppercase; color: var(--txt-doux);
}
.champ__req { color: var(--braise); }
[data-theme='parchemin'] .champ__req { color: #a3352a; }
.champ input[type='text'],
.champ input[type='email'],
.champ textarea,
.champ select {
  width: 100%;
  padding: .95rem 1.1rem;
  background: var(--bg-1);
  border: 1px solid var(--trait);
  border-radius: var(--r);
  font-family: var(--f-ui); font-size: .95rem;
  transition: border-color .35s, background-color .35s;
}
.champ input:focus, .champ textarea:focus {
  outline: none; border-color: var(--or); background: var(--bg-2);
}
.champ__aide { font-size: .82rem; color: var(--txt-faible); margin: 0; }
.champ__erreur {
  font-family: var(--f-ui); font-size: .78rem; color: #e07a6a; margin: 0;
  display: none;
}
[data-theme='parchemin'] .champ__erreur { color: #a3352a; }
.champ.is-invalide .champ__erreur { display: block; }
.champ.is-invalide input, .champ.is-invalide textarea { border-color: #e07a6a; }

.fichier {
  display: grid; gap: .6rem;
  padding: 1.6rem;
  border: 1px dashed var(--trait-fort); border-radius: var(--r);
  text-align: center;
  transition: background-color .35s, border-color .35s;
}
.fichier.is-survol { background: color-mix(in srgb, var(--or) 8%, transparent); border-color: var(--or); }
.fichier input[type='file'] { display: none; }
.fichier__btn { display: inline-flex; justify-self: center; }
.fichier__nom { font-family: var(--f-ui); font-size: .84rem; color: var(--accent); }

.consentement {
  display: grid; grid-template-columns: 1.5rem 1fr; gap: .9rem; align-items: start;
  padding: 1.3rem; border: 1px solid var(--trait); background: var(--bg-1);
}
.consentement input[type='checkbox'] {
  appearance: none; width: 1.15rem; height: 1.15rem; margin-top: .18rem;
  border: 1px solid var(--trait-fort); border-radius: 1px; cursor: pointer;
  display: grid; place-content: center;
  transition: background-color .3s, border-color .3s;
}
.consentement input[type='checkbox']::before {
  content: ''; width: .55rem; height: .55rem; background: #0b0806;
  clip-path: polygon(14% 44%, 0 60%, 40% 100%, 100% 22%, 84% 6%, 38% 68%);
  transform: scale(0); transition: transform .2s var(--ease);
}
.consentement input[type='checkbox']:checked { background: var(--or); border-color: var(--or); }
.consentement input[type='checkbox']:checked::before { transform: scale(1); }
.consentement label { font-size: .92rem; color: var(--txt-doux); line-height: 1.6; cursor: pointer; }

.form__statut {
  padding: 1.1rem 1.3rem; border-left: 2px solid var(--or);
  background: var(--bg-1); font-family: var(--f-ui); font-size: .9rem;
  display: none;
}
.form__statut.is-visible { display: block; }
.form__statut[data-etat='erreur'] { border-left-color: #e07a6a; }
.form__statut[data-etat='succes'] { border-left-color: #6faa72; }

.form button[type='submit'][disabled] { opacity: .5; pointer-events: none; }

/* --- 15. Pied de page ---------------------------------------------------- */

.footer { position: relative; padding-top: clamp(4rem, 9vw, 7rem); background: var(--bg-1); overflow: hidden; }
.footer__glow {
  position: absolute; inset: auto 0 -40% 0; height: 60%;
  background: radial-gradient(50% 100% at 50% 100%, var(--lueur), transparent 70%);
  pointer-events: none;
}
.footer__inner {
  position: relative;
  display: grid; grid-template-columns: minmax(16rem, 22rem) 1fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
}
.footer__mark { width: 54px; height: 64px; color: var(--txt-doux); margin-bottom: 1.5rem; }
.footer__name { font-family: var(--f-display); font-size: 1.35rem; margin-bottom: .8rem; }
.footer__tagline {
  font-family: var(--f-display); font-style: italic;
  font-size: 1.3rem; line-height: 1.4; color: var(--accent-clair); margin-bottom: .5rem;
}
.footer__source {
  font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .22em; text-transform: uppercase; color: var(--txt-faible); margin: 0;
}
.footer__nav { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.footer__head {
  font-family: var(--f-ui); font-size: var(--t-micro); font-weight: 500;
  letter-spacing: .2em; text-transform: uppercase; color: var(--accent);
  margin: 0 0 1.1rem;
}
.footer__col ul { display: grid; gap: .55rem; }
.footer__col a { font-size: .92rem; color: var(--txt-faible); transition: color .3s; }
.footer__col a:hover { color: var(--txt); }
.footer__bar {
  border-top: 1px solid var(--trait);
  padding-block: 1.6rem;
  display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between;
  font-family: var(--f-ui); font-size: .76rem; color: var(--txt-faible);
}
.footer__bar p { margin: 0; }
.footer__legal { display: flex; flex-wrap: wrap; gap: 1.4rem; }
.footer__legal a:hover { color: var(--or); }

/* --- 16. Emblème --------------------------------------------------------- */

/* L’artwork est en lignes claires : le thème parchemin l’inverse en clarté
   sans virer les teintes (l’Agneau doit rester doré, pas bleu). */
.emblem, .brand__mark, .hero__mark, .cta__mark, .footer__mark, .intro__mark {
  display: block;
}
.emblem img, .brand__mark img, .hero__mark img,
.cta__mark img, .footer__mark img, .intro__mark img {
  width: 100%; height: 100%; object-fit: contain;
}
[data-theme='parchemin'] .emblem img,
[data-theme='parchemin'] .brand__mark img,
[data-theme='parchemin'] .hero__mark img,
[data-theme='parchemin'] .cta__mark img,
[data-theme='parchemin'] .footer__mark img,
[data-theme='parchemin'] .intro__mark img {
  filter: invert(1) hue-rotate(180deg);
}

.brand__mark { width: 32px; height: 38px; }
.brand__mark img { opacity: .92; transition: opacity .4s; }
.brand:hover .brand__mark img { opacity: 1; }

.hero__mark, .cta__mark, .intro__mark { opacity: .9; }

/* Apparition de l’emblème : montée douce et léger agrandissement. */
.hero__mark, .cta__mark {
  animation: emblemeEntre 1.6s var(--ease) both;
}
.intro__mark { animation: emblemeEntre 1.1s var(--ease) both; }
@keyframes emblemeEntre {
  from { opacity: 0; transform: translateY(10px) scale(.94); }
  to   { opacity: .9; transform: none; }
}

/* --- 17. Écran d’ouverture ---------------------------------------------- */

.intro {
  position: fixed; inset: 0; z-index: 950;
  display: grid; place-items: center;
  background: var(--bg-0);
  transition: opacity .8s var(--ease), visibility .8s;
}
.intro.is-done { opacity: 0; visibility: hidden; }
.intro__mark { width: 96px; height: 114px; color: var(--or-clair); }
.intro__mark .emblem__shield, .intro__mark .emblem__hand,
.intro__mark .emblem__lamb path, .intro__mark .emblem__lamb circle {
  stroke-dasharray: 400; stroke-dashoffset: 400;
  animation: trace 1.15s var(--ease) forwards;
}
.intro__mark .emblem__cross, .intro__mark .emblem__cartouche {
  opacity: 0; animation: fadeIn .7s var(--ease) .3s forwards;
}
.intro__line {
  position: absolute; bottom: 32%; left: 50%; translate: -50% 0;
  font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .32em; text-transform: uppercase; color: var(--txt-faible);
  opacity: 0; animation: fadeIn .9s var(--ease) .7s forwards;
}
@keyframes fadeIn { to { opacity: 1; } }

/* --- 18. Divers ---------------------------------------------------------- */

.note {
  border-left: 2px solid var(--trait-fort);
  padding: 1.1rem 0 1.1rem 1.4rem;
  color: var(--txt-faible); font-size: .95rem;
  margin-block: 2rem;
}
.note strong { color: var(--accent); }

.tags { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 2rem; }
.tag {
  font-family: var(--f-ui); font-size: var(--t-micro);
  letter-spacing: .12em; text-transform: uppercase;
  padding: .4rem .9rem; border: 1px solid var(--trait); border-radius: 999px;
  color: var(--txt-faible);
}

.plan { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2.5rem; }
.plan h2 { font-size: var(--t-h3); margin-bottom: 1rem; }
.plan ul { display: grid; gap: .5rem; }
.plan a { color: var(--txt-doux); border-bottom: 1px solid transparent; }
.plan a:hover { color: var(--or); border-bottom-color: var(--trait-fort); }

.erreur-404 { min-height: 78vh; display: grid; place-items: center; text-align: center; }
.erreur-404__code {
  font-family: var(--f-display); font-size: clamp(6rem, 22vw, 16rem);
  line-height: .8; color: var(--trait-fort); margin-bottom: 1.5rem;
}

/* --- 19. Adaptations ----------------------------------------------------- */

@media (max-width: 1180px) {
  .nav { display: none; }
  .burger { display: block; }
  .header__cta { display: none; }
  .layout-lu { grid-template-columns: 1fr; }
  .layout-lu > .toc, .layout-lu > .prose, .layout-lu > .aside-lu { grid-column: 1; }
  .layout-lu > .toc { position: static; max-width: none; justify-self: stretch; }
  .footer__nav { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 980px) {
  .feature__grid { grid-template-columns: 1fr; }
  .feature--right .feature__media { order: 0; }
  .cards--3 { grid-template-columns: repeat(2, 1fr); }
  .figures__grid { grid-template-columns: repeat(2, 1fr); }
  .steps__list { grid-template-columns: 1fr; }
  .pillars__list { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; }
  .plan { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  :root { --header-h: 64px; }
  .cards--3, .cards--2 { grid-template-columns: 1fr; }
  .hero__quote { max-width: 18ch; }
  .hero__attrib { display: block; }
  .hero__attrib::before { display: none; }
  .hero__scroll { display: none; }
  .jalon { grid-template-columns: 1fr; gap: .4rem; }
  .jalon__date { padding-top: 0; }
  .ere__head { grid-template-columns: 1fr; gap: .6rem; }
  .chrono__corps { --rail: .35rem; --rail-gap: 1.35rem; }
  .ere__num { font-size: 2.2rem; }
  .chrono__annee { display: none; }
  .theme-toggle__text { display: none; }
  .theme-toggle { padding: .5rem .6rem; }
  .footer__nav { grid-template-columns: 1fr; }
  .figures__grid { grid-template-columns: 1fr; }
  .toc { display: none; }
}

/* --- 20. Mouvement réduit ------------------------------------------------ */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  [data-reveal], [data-reveal-group] > *, .split .w__i, .media img {
    opacity: 1 !important; transform: none !important; clip-path: none !important;
  }
  .band__track { animation: none; }
  body::after { animation: none; }
  .hero__bg img { animation: none; }
  .intro { display: none; }
}

/* --- 21. Impression ------------------------------------------------------ */

@media print {
  .header, .drawer, .footer__nav, .cta, .band, .hero__scroll, .progress, .toc, .intro { display: none !important; }
  body { background: #fff; color: #000; }
  .media, .phero__bg { display: none; }
  a[href^='/']::after { content: ' (vladimirghika.org' attr(href) ')'; font-size: .8em; }
}

/* --- 22. Compositions de l’accueil --------------------------------------- */

.manifeste__grid {
  display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 6vw, 6rem); align-items: start;
}
.manifeste__title { font-size: var(--t-h2); max-width: 14ch; }
.manifeste__texte { color: var(--txt-doux); }
.manifeste__texte .lede { max-width: 52ch; margin-top: 0; color: var(--txt); }
.manifeste__texte p { max-width: 54ch; }
.manifeste__texte em { color: var(--accent-clair); font-style: italic; }

.ghika-teaser__grid {
  display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5.5rem); align-items: center;
}
.ghika-teaser__liens { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2.4rem; }

@media (max-width: 980px) {
  .manifeste__grid, .ghika-teaser__grid { grid-template-columns: 1fr; }
}

/* --- 23. Compositions de pages intérieures ------------------------------ */

/* Objet statutaire : les deux alinéas, mis en exergue. */
.objet__titre { font-size: var(--t-h2); margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.objet__liste { display: grid; gap: clamp(1.5rem, 3vw, 2.5rem); }
.objet__item {
  display: grid; grid-template-columns: 5rem 1fr; gap: clamp(1rem, 3vw, 2.5rem);
  align-items: start;
  padding: clamp(1.6rem, 3vw, 2.6rem);
  background: var(--bg-1); border: 1px solid var(--trait);
  border-left: 2px solid var(--trait-fort);
}
.objet__num {
  font-family: var(--f-display); font-size: clamp(2.4rem, 4vw, 3.4rem);
  line-height: .85; color: var(--trait-fort); margin: 0;
}
.objet__texte { margin: 0; font-size: clamp(1.05rem, 1.5vw, 1.28rem); line-height: 1.7; color: var(--txt-doux); }
.objet__texte strong { color: var(--txt); font-weight: 600; }

/* Demande d’admission : engagements à gauche, formulaire à droite. */
.demande, .contact {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
  gap: clamp(2.5rem, 6vw, 5.5rem); align-items: start;
}
.demande__form, .contact__form {
  position: sticky; top: calc(var(--header-h) + 2rem);
  padding: clamp(1.6rem, 3vw, 2.6rem);
  background: var(--bg-1); border: 1px solid var(--trait);
}
.contact__form { position: static; }

.champ select {
  width: 100%; padding: .95rem 1.1rem;
  background: var(--bg-2); border: 1px solid var(--trait); border-radius: var(--r);
  font-family: var(--f-ui); font-size: .95rem;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 20px) 1.35rem, calc(100% - 14px) 1.35rem;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}
.champ textarea { resize: vertical; min-height: 8rem; }

.a-completer {
  background: color-mix(in srgb, var(--braise) 22%, transparent);
  color: var(--txt); padding: .12em .45em; border-radius: 2px;
  font-family: var(--f-ui); font-size: .82em;
}

@media (max-width: 1100px) {
  .demande, .contact { grid-template-columns: 1fr; }
  .demande__form { position: static; }
}
@media (max-width: 700px) {
  .objet__item { grid-template-columns: 1fr; gap: .6rem; }
}

/* --- 24. Ajustements fins ------------------------------------------------ */

/* Un élément vide ne doit pas réserver de place dans une grille. */
.fichier__nom:empty, .champ__aide:empty { display: none; }

/* Le libellé du fichier choisi doit rester lisible sur un nom très long. */
.fichier__nom { overflow-wrap: anywhere; }