/* ==========================================================================
   UI — composants partagés (grain, curseur, nav, boutons, révélations)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. GRAIN — la texture qui casse l'aplat numérique
   -------------------------------------------------------------------------- */

.grain {
  position: fixed;
  inset: -50%;
  z-index: var(--z-overlay);
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-repeat: repeat;
  background-size: 180px 180px;
  will-change: transform;
}

.grain[data-anim='on'] {
  animation: grain-shift 900ms steps(6) infinite;
}

@keyframes grain-shift {
  0%   { transform: translate3d(0, 0, 0); }
  16%  { transform: translate3d(-3%, -4%, 0); }
  33%  { transform: translate3d(-6%, 2%, 0); }
  50%  { transform: translate3d(2%, -5%, 0); }
  66%  { transform: translate3d(-1%, 3%, 0); }
  83%  { transform: translate3d(4%, -2%, 0); }
  100% { transform: translate3d(0, 0, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .grain { animation: none !important; }
}

/* --------------------------------------------------------------------------
   2. CURSEUR — présent uniquement au pointeur fin
   -------------------------------------------------------------------------- */

.cursor {
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-cursor);
  pointer-events: none;
  display: none;
  mix-blend-mode: difference;
}

.cursor__dot,
.cursor__ring {
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 50%;
  will-change: transform;
}

.cursor__dot {
  width: 6px;
  height: 6px;
  margin: -3px 0 0 -3px;
  background: var(--paper-100);
}

.cursor__ring {
  width: 40px;
  height: 40px;
  margin: -20px 0 0 -20px;
  border: 1px solid var(--paper-100);
  transition: width var(--dur) var(--ease-out),
              height var(--dur) var(--ease-out),
              margin var(--dur) var(--ease-out),
              opacity var(--dur) var(--ease-out),
              background-color var(--dur) var(--ease-out);
}

.cursor__label {
  position: absolute;
  top: 0;
  left: 0;
  transform: translate(-50%, -50%) scale(0.6);
  opacity: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-900);
  white-space: nowrap;
  transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}

/* État « cible interactive » */
.cursor.is-hot .cursor__ring {
  width: 72px;
  height: 72px;
  margin: -36px 0 0 -36px;
  background: var(--paper-100);
  border-color: transparent;
}
.cursor.is-hot .cursor__dot { opacity: 0; }
.cursor.is-hot .cursor__label { opacity: 1; transform: translate(-50%, -50%) scale(1); }

.cursor.is-down .cursor__ring { transform: scale(0.82); }

@media (hover: hover) and (pointer: fine) {
  .cursor { display: block; }
  body.has-cursor,
  body.has-cursor a,
  body.has-cursor button { cursor: none; }
}

/* --------------------------------------------------------------------------
   3. PRÉLOADER
   -------------------------------------------------------------------------- */

.loader {
  position: fixed;
  inset: 0;
  z-index: var(--z-loader);
  background: var(--ink-900);
  display: grid;
  grid-template-rows: 1fr auto;
  padding: var(--gutter);
  transition: transform 1s var(--ease-in);
}

.loader.is-done {
  transform: translate3d(0, -101%, 0);
  pointer-events: none;
}

.loader__mark {
  align-self: center;
  justify-self: start;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 7vw, 5rem);
  letter-spacing: -0.05em;
  line-height: 1;
  overflow: hidden;
}

.loader__mark span {
  display: block;
  transform: translate3d(0, 105%, 0);
  animation: loader-in 800ms var(--ease-out) 120ms forwards;
}

@keyframes loader-in {
  to { transform: translate3d(0, 0, 0); }
}

.loader__foot {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--s-4);
  border-top: 1px solid var(--line);
  padding-top: var(--s-4);
}

.loader__count {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(2.5rem, 9vw, 6rem);
  line-height: 0.8;
  color: var(--acid);
  letter-spacing: -0.04em;
}

.loader__bar {
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  bottom: calc(var(--gutter) + 0.5rem);
  height: 1px;
  background: var(--line);
  overflow: hidden;
}

.loader__bar i {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--acid);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 200ms linear;
}

/* --------------------------------------------------------------------------
   4. NAVIGATION
   -------------------------------------------------------------------------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding: var(--s-4) var(--gutter);
  mix-blend-mode: difference;
  transition: transform var(--dur-slow) var(--ease-out);
}

.nav.is-hidden { transform: translate3d(0, -110%, 0); }

.nav__mark {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.125rem;
  letter-spacing: -0.04em;
  color: var(--paper-100);
  display: inline-flex;
  align-items: center;
  gap: 0.5ch;
}

.nav__mark i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--acid);
  animation: pulse 2.4s var(--ease-soft) infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.35; transform: scale(0.7); }
}

.nav__links {
  display: none;
  gap: clamp(1rem, 2.5vw, 2.5rem);
  align-items: center;
}

@media (min-width: 900px) {
  .nav__links { display: flex; }
}

.nav__link {
  position: relative;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-100);
  padding: 0.75rem 0.25rem;
  overflow: hidden;
  display: inline-flex;
  align-items: baseline;
  gap: 0.6ch;
}

.nav__link em {
  font-style: normal;
  color: var(--acid);
  font-size: 0.85em;
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0.25rem;
  right: 0.25rem;
  bottom: 0.5rem;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: 100% 50%;
  transition: transform var(--dur) var(--ease-out);
}

.nav__link:hover::after,
.nav__link:focus-visible::after,
.nav__link[aria-current='page']::after {
  transform: scaleX(1);
  transform-origin: 0 50%;
}

/* Déclencheur menu mobile */
.nav__burger {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: flex-end;
  color: var(--paper-100);
}

@media (min-width: 900px) { .nav__burger { display: none; } }

.nav__burger span {
  display: block;
  height: 1.5px;
  width: 26px;
  background: currentColor;
  transition: transform var(--dur) var(--ease-out), width var(--dur) var(--ease-out), opacity var(--dur);
}
.nav__burger span:last-child { width: 16px; }
.nav__burger[aria-expanded='true'] span:first-child { transform: translateY(6.5px) rotate(45deg); }
.nav__burger[aria-expanded='true'] span:last-child { width: 26px; transform: translateY(-6.5px) rotate(-45deg); }

/* Panneau mobile */
.menu {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-sticky) - 1);
  background: var(--ink-850);
  padding: calc(var(--s-24)) var(--gutter) var(--gutter);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  clip-path: inset(0 0 100% 0);
  transition: clip-path var(--dur-slow) var(--ease-out);
  visibility: hidden;
}

.menu.is-open {
  clip-path: inset(0 0 0 0);
  visibility: visible;
}

.menu__list { display: flex; flex-direction: column; gap: var(--s-2); }

.menu__list a {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 11vw, 3.5rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
  display: flex;
  align-items: baseline;
  gap: 0.6ch;
  padding-block: 0.15em;
}

.menu__list a em {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.7rem;
  color: var(--acid);
  letter-spacing: 0.1em;
}

/* --------------------------------------------------------------------------
   5. BOUTONS & LIENS
   -------------------------------------------------------------------------- */

.btn {
  --btn-bg: var(--acid);
  --btn-fg: var(--on-accent);
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75ch;
  min-height: 52px;
  padding: 0 var(--s-8);
  border-radius: 100px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 500;
  overflow: hidden;
  isolation: isolate;
  transition: color var(--dur) var(--ease-out);
  will-change: transform;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--paper-100);
  transform: translate3d(0, 101%, 0);
  transition: transform var(--dur-slow) var(--ease-out);
}

.btn:hover::before,
.btn:focus-visible::before { transform: translate3d(0, 0, 0); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--fg);
  border: 1px solid var(--line-strong);
}
.btn--ghost:hover,
.btn--ghost:focus-visible { color: var(--ink-900); }

.btn__arrow {
  width: 14px;
  height: 14px;
  transition: transform var(--dur) var(--ease-out);
}
.btn:hover .btn__arrow { transform: translate(3px, -3px); }

/* Lien texte souligné animé */
.link-u {
  position: relative;
  display: inline-block;
  padding-bottom: 2px;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 100% 1px;
  background-repeat: no-repeat;
  background-position: 100% 100%;
  transition: background-size var(--dur) var(--ease-out);
}
.link-u:hover,
.link-u:focus-visible {
  background-size: 0% 1px;
  background-position: 0% 100%;
}

/* --------------------------------------------------------------------------
   6. MARQUEE — ruban défilant, vitesse réactive au scroll
   -------------------------------------------------------------------------- */

.marquee {
  position: relative;
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: var(--acid);
  color: var(--ink-900);
  padding-block: var(--s-4);
  --line: rgba(8, 9, 10, 0.25);
}

.marquee__track {
  display: flex;
  width: max-content;
  will-change: transform;
}

.marquee__group {
  display: flex;
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
  padding-right: clamp(2rem, 5vw, 4rem);
  flex-shrink: 0;
}

.marquee__item {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 3.2vw, 2.75rem);
  letter-spacing: -0.03em;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
}

.marquee__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   7. RÉVÉLATIONS AU SCROLL
   -------------------------------------------------------------------------- */

/* Fondu + montée, pilotés par JS via .is-in */
[data-reveal] {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition: opacity var(--dur-reveal) var(--ease-out),
              transform var(--dur-reveal) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* Lignes de titre masquées puis relevées */
[data-reveal='lines'] {
  opacity: 1;
  transform: none;
}

.line {
  display: block;
  overflow: hidden;
}

.line > span {
  display: block;
  transform: translate3d(0, 105%, 0);
  transition: transform 1s var(--ease-out);
  transition-delay: var(--line-delay, 0ms);
}

[data-reveal='lines'].is-in .line > span { transform: none; }

/* Filet qui se trace */
[data-reveal='rule'] {
  opacity: 1;
  transform: none;
  transform-origin: 0 50%;
}
[data-reveal='rule'] > i {
  display: block;
  height: 1px;
  background: var(--line-strong);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 1.1s var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
[data-reveal='rule'].is-in > i { transform: scaleX(1); }

/* Image dévoilée par volet */
[data-reveal='clip'] {
  opacity: 1;
  transform: none;
  clip-path: inset(0 0 100% 0);
  transition: clip-path 1.1s var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
[data-reveal='clip'].is-in { clip-path: inset(0 0 0 0); }

@media (prefers-reduced-motion: reduce) {
  [data-reveal],
  [data-reveal='clip'] { opacity: 1 !important; transform: none !important; clip-path: none !important; }
  .line > span { transform: none !important; }
  [data-reveal='rule'] > i { transform: scaleX(1) !important; }
}

/* --------------------------------------------------------------------------
   8. EN-TÊTES DE SECTION
   -------------------------------------------------------------------------- */

.shead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-6);
  flex-wrap: wrap;
  padding-bottom: var(--s-4);
  border-bottom: 1px solid var(--line);
  margin-bottom: var(--s-12);
}

.shead__id {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-muted);
  display: inline-flex;
  gap: 1ch;
}
.shead__id b { color: var(--accent); font-weight: 500; }

.shead__title {
  font-size: var(--fs-h2);
  letter-spacing: -0.04em;
}

/* --------------------------------------------------------------------------
   9. PLAQUES — compositions génératives tenant lieu de visuel
       Remplaçables par <img> sans toucher au layout (cf. assets/img/README.md)
   -------------------------------------------------------------------------- */

.plate {
  display: block; /* souvent posée sur un <span> : sans ça, aspect-ratio est ignoré */
  position: relative;
  overflow: hidden;
  background: var(--ink-700);
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  isolation: isolate;
}

.plate > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.plate__art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.plate__tag {
  display: block;
  position: absolute;
  left: var(--s-4);
  bottom: var(--s-4);
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.4rem 0.7rem;
  border-radius: 100px;
  background: rgba(8, 9, 10, 0.72);
  color: var(--paper-100);
  backdrop-filter: blur(6px);
}

/* --------------------------------------------------------------------------
   10. PIED DE PAGE
   -------------------------------------------------------------------------- */

.foot {
  background: var(--bg-sunken);
  padding: var(--s-12) 0 var(--s-8);
  border-top: 1px solid var(--line);
}

.foot__grid {
  display: grid;
  gap: var(--s-8);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .foot__grid { grid-template-columns: repeat(3, 1fr); }
}

.foot__col h4 {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-bottom: var(--s-4);
}

.foot__col li + li { margin-top: var(--s-2); }

.foot__bar {
  margin-top: var(--s-12);
  padding-top: var(--s-4);
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-4);
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-faint);
}

/* --------------------------------------------------------------------------
   11. DIVERS
   -------------------------------------------------------------------------- */

.skip {
  position: absolute;
  left: var(--gutter);
  top: -100px;
  z-index: calc(var(--z-loader) + 1);
  background: var(--acid);
  color: var(--ink-900);
  padding: 0.75rem 1.25rem;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: top var(--dur) var(--ease-out);
}
.skip:focus { top: var(--s-4); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5ch;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  white-space: nowrap;
}

.tag--acid {
  background: var(--acid);
  border-color: var(--acid);
  color: var(--ink-900);
}

/* Icône flèche réutilisable */
.i-arrow { width: 1em; height: 1em; fill: none; stroke: currentColor; stroke-width: 1.6; }