/* ==========================================================================
   layout.css — Structure globale : couches, preloader, header, colonne,
   menu, chapitres (sections), bords d'encre, motifs de fond
   ========================================================================== */

/* ---- Conteneur -------------------------------------------------------- */
/* Marges généreuses ; au-delà de --max, le contenu reste centré */
.wrap {
  position: relative;
  z-index: var(--z-content);
  width: 100%;
  padding-inline: max(var(--pad), (100% - var(--max)) / 2);
}

/* ---- Couches vivantes -------------------------------------------------- */
/* Le fil d'encre : au-dessus des fonds de section, sous le contenu */
.thread {
  position: fixed;
  inset: 0;
  z-index: var(--z-field);
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.grain {
  position: fixed;
  inset: -50%;
  z-index: var(--z-grain);
  pointer-events: none;
  opacity: 0.075;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.12 0 0 0 0 0.09 0 0 0 0 0.08 0 0 0 1.4 -0.35'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 180px 180px;
}

/* ---- Curseur aiguille ------------------------------------------------- */
.cursor {
  position: fixed;
  top: 0; left: 0;
  z-index: var(--z-cursor);
  pointer-events: none;
  display: none;
  mix-blend-mode: difference;
}
.has-cursor .cursor { display: block; }
.has-cursor, .has-cursor a, .has-cursor button, .has-cursor label, .has-cursor [data-poke-pad] { cursor: none; }
.has-cursor input, .has-cursor textarea, .has-cursor select { cursor: auto; }

.cursor__needle {
  position: absolute;
  left: -2px; top: -46px;
  overflow: visible;
  transform-origin: 2px 46px;
  transition: transform 0.35s var(--ease-out), opacity 0.2s;
}
.cursor__needle line { stroke: var(--os); stroke-width: 1.2; stroke-linecap: round; }
.cursor__needle circle { fill: var(--os); }
.cursor__needle .cursor__eye { fill: none; stroke: var(--os); stroke-width: 0.9; }
.cursor__ring {
  position: absolute;
  left: 0; top: 0;
  width: 54px; height: 54px;
  margin: -27px 0 0 -27px;
  border-radius: 50%;
  background-image: radial-gradient(circle, var(--os) 1px, transparent 1.4px);
  -webkit-mask: radial-gradient(circle, transparent 25px, #000 25.5px, #000 27px, transparent 27.5px);
  mask: radial-gradient(circle, transparent 25px, #000 25.5px, #000 27px, transparent 27.5px);
  background-size: 5px 5px;
  transform: scale(0.3);
  opacity: 0;
  transition: transform 0.5s var(--ease-out), opacity 0.3s;
}
.cursor.is-hover .cursor__ring { transform: scale(1) rotate(30deg); opacity: 1; }
.cursor.is-hover .cursor__needle { transform: rotate(-12deg) translate(4px, -4px); }
.cursor.is-down .cursor__needle { transform: translate(-3px, 3px); }
.cursor.is-hidden { opacity: 0; }

.cursor-trail {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-cursor) - 1);
  pointer-events: none;
  width: 100%;
  height: 100%;
}

/* ---- Preloader -------------------------------------------------------- */
.preloader {
  position: fixed;
  inset: 0;
  z-index: var(--z-preloader);
  display: grid;
  place-items: center;
  background: var(--encre);
  color: var(--os);
}
.no-js .preloader, .preloader.is-done { display: none; }
.preloader.has-bg { background: transparent; }
.preloader__bg { position: absolute; inset: 0; background: var(--encre); }
.is-loading, .is-loading body { overflow: hidden; }
.preloader__inner {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 1.2rem;
}
.preloader__canvas {
  width: min(42vh, 60vw);
  height: min(58vh, 84vw);
}
.preloader__name {
  font-style: italic;
  font-size: clamp(3rem, 2rem + 4vw, 5.5rem);
  line-height: 0.9;
  letter-spacing: -0.01em;
}
.preloader__name .char { display: inline-block; }
.preloader__count { color: var(--argile); }

/* ---- Header ----------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-header);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: clamp(0.9rem, 0.6rem + 1vw, 1.6rem) max(var(--pad), (100% - var(--max)) / 2);
  color: var(--fg);
  pointer-events: none;
  transition: color 0.5s var(--ease-soft), transform 0.6s var(--ease-out);
}
.site-header > * { pointer-events: auto; }
.site-header.is-hidden { transform: translateY(-110%); }

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}
.logo__mark {
  width: 22px;
  height: 38px;
  background: currentColor;
  -webkit-mask: url("/static/images/motifs/branch.svg") center / contain no-repeat;
  mask: url("/static/images/motifs/branch.svg") center / contain no-repeat;
  transition: transform 0.8s var(--ease-out);
  transform-origin: 50% 100%;
}
.logo:hover .logo__mark { transform: rotate(-8deg); }
.logo__name {
  font-style: italic;
  font-size: clamp(1.6rem, 1.3rem + 0.8vw, 2.1rem);
  line-height: 1;
  letter-spacing: -0.01em;
  transform: translateY(-0.08em);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 0.4rem + 1.4vw, 2rem);
}
.link-insta {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.12em;
  min-height: 44px;
}
.icon-insta { fill: none; stroke: currentColor; stroke-width: 1.4; }
.icon-insta .fill { fill: currentColor; stroke: none; }
.link-insta__text {
  background-image: radial-gradient(circle, currentColor 0.8px, transparent 1.1px);
  background-size: 5px 3px;
  background-repeat: repeat-x;
  background-position: 0 100%;
  background-size: 0 3px;
  padding-bottom: 0.2em;
  transition: background-size 0.5s var(--ease-out);
}
.link-insta:hover .link-insta__text { background-size: 5px 3px; }

.menu-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 44px;
  font-family: var(--mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.menu-toggle__dots { display: grid; grid-template-columns: repeat(3, 4px); gap: 3px; }
.menu-toggle__dots i { width: 4px; height: 4px; border-radius: 50%; background: currentColor; transition: transform 0.4s var(--ease-out); }
.menu-toggle[aria-expanded="true"] .menu-toggle__dots i:nth-child(1) { transform: translate(7px, 0) scale(1.4); }
.menu-toggle[aria-expanded="true"] .menu-toggle__dots i:nth-child(3) { transform: translate(-7px, 0) scale(1.4); }

@media (max-width: 699px) {
  .link-insta__text { display: none; }
  .link-insta { min-width: 44px; justify-content: center; }
}
@media (max-width: 380px) {
  .site-header .btn--small { display: none; }
}

/* ---- Menu plein écran ------------------------------------------------- */
.menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-menu);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(6rem, 14vh, 9rem) var(--pad) 2.5rem;
  background: var(--encre);
  color: var(--os);
  clip-path: circle(0% at calc(100% - 3rem) 2.5rem);
  transition: clip-path 0.8s var(--ease-in-out);
}
.menu.is-open { clip-path: circle(150% at calc(100% - 3rem) 2.5rem); }
.menu__list { display: grid; gap: 0.3rem; }
.menu__list a {
  display: inline-block;
  font-style: italic;
  font-size: clamp(2.6rem, 1rem + 6vw, 6.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  transform: translateY(30%);
  opacity: 0;
  transition: transform 0.7s var(--ease-out), opacity 0.5s, color 0.3s;
}
.menu.is-open .menu__list a { transform: none; opacity: 1; }
.menu.is-open .menu__list li:nth-child(2) a { transition-delay: 0.05s; }
.menu.is-open .menu__list li:nth-child(3) a { transition-delay: 0.1s; }
.menu.is-open .menu__list li:nth-child(4) a { transition-delay: 0.15s; }
.menu.is-open .menu__list li:nth-child(5) a { transition-delay: 0.2s; }
.menu.is-open .menu__list li:nth-child(6) a { transition-delay: 0.25s; }
.menu__list a:hover { color: var(--terracotta-clair); }
.menu__foot { color: var(--argile); }
.menu-open .site-header { color: var(--os); z-index: calc(var(--z-menu) + 1); transform: none; }

/* ---- Chapitres -------------------------------------------------------- */
main > section,
.footer {
  position: relative;
  background: var(--bg);
  color: var(--fg);
}

/* Bord déchiré entre un chapitre clair et un chapitre sombre : le papier
   de la section voisine mord dans l'encre. Il déborde de 40 % sur la
   section voisine (même couleur, invisible) et de 60 % dans la marge de la
   section sombre, jamais sur du texte. */
.ink-edge {
  --edge-h: clamp(50px, 7vw, 110px);
  position: absolute;
  left: -4%;
  right: -4%;
  height: var(--edge-h);
  background: var(--edge-bg, var(--sable));
  filter: url(#ink-edge);
  pointer-events: none;
}
.ink-edge--top { top: calc(var(--edge-h) * -0.4); transform-origin: 50% 40%; }
.ink-edge--bottom { bottom: calc(var(--edge-h) * -0.4); transform-origin: 50% 60%; }

/* Motifs de fond : ses pièces, en très grand, rognées, 8–20 % d'opacité.
   Colorés via mask-image pour suivre le thème. */
.bg-motif {
  position: absolute;
  pointer-events: none;
  background: var(--fg);
  opacity: 0.1;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-size: contain;
  mask-size: contain;
  will-change: transform;
}
.bg-motif--ornament {
  top: 4%; right: -14vw;
  width: min(62vw, 720px);
  height: 140vh;
  background: var(--argile);
  opacity: 0.12;
  -webkit-mask-image: url("/static/images/motifs/ornament.svg");
  mask-image: url("/static/images/motifs/ornament.svg");
  -webkit-mask-position: right top;
  mask-position: right top;
}
.bg-motif--vine {
  display: none;
  top: 6rem; left: calc(-10vw + var(--spine-w));
  width: 40vw; height: 115vh;
  opacity: 0.08;
  -webkit-mask-image: url("/static/images/motifs/vine.svg");
  mask-image: url("/static/images/motifs/vine.svg");
}
.bg-motif--mandala {
  right: -26vw; bottom: -18vw;
  width: 80vw; height: 80vw;
  max-width: 1100px; max-height: 1100px;
  opacity: 0.09;
  -webkit-mask-image: url("/static/images/motifs/mandala.svg");
  mask-image: url("/static/images/motifs/mandala.svg");
}
.ink-edge--bone { --edge-bg: var(--os); }