/* ==========================================================================
   Oskar Kokoschka — feuille de style
   Monochrome, angles droits : l'esprit du site d'origine, mieux exécuté.
   ========================================================================== */

:root {
  --ink: #0a0a0a;
  --ink-soft: #2a2a2a;
  --ink-mute: #6b6b6b;
  --line: #d8d8d8;
  --paper: #ffffff;
  --paper-warm: #f6f5f3;
  --dark: #0a0a0a;
  --dark-soft: #161616;
  --on-dark: #f4f3f1;
  --on-dark-mute: #a8a6a2;

  --serif: "Fraunces", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --measure: 68ch;
  --wide: 1240px;
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --flow: clamp(4rem, 9vw, 7.5rem);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: clamp(1rem, .96rem + .2vw, 1.0625rem);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -.02em;
  margin: 0;
  text-wrap: balance;
}
h1 { font-size: clamp(2.5rem, 1.6rem + 4.2vw, 5rem); }
h2 { font-size: clamp(1.85rem, 1.3rem + 2.4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 1.05rem + .9vw, 1.65rem); }

p { margin: 0 0 1.35em; max-width: var(--measure); text-wrap: pretty; }
a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }

.wrap { width: min(var(--wide), 100%); margin-inline: auto; padding-inline: var(--gutter); }
.narrow { width: min(76ch, 100%); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--flow); }
.section--warm { background: var(--paper-warm); }
.section--dark { background: var(--dark); color: var(--on-dark); }
.section--dark p { color: var(--on-dark-mute); }

.eyebrow {
  font-family: var(--sans);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 1rem;
}
.section--dark .eyebrow { color: var(--on-dark-mute); }

.lede { font-size: clamp(1.1rem, 1rem + .5vw, 1.35rem); line-height: 1.6; color: var(--ink-soft); }
.section--dark .lede { color: var(--on-dark); }

/* --- Navigation ---------------------------------------------------------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 2rem;
  padding: 1rem var(--gutter);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav__brand { font-family: var(--serif); font-weight: 600; font-size: 1.0625rem; text-decoration: none; letter-spacing: -.01em; }
.nav__links { display: flex; gap: 1.5rem; margin-left: auto; align-items: center; flex-wrap: wrap; }
.nav__links a { text-decoration: none; font-size: .9rem; color: var(--ink-soft); padding-block: .25rem; border-bottom: 1px solid transparent; }
.nav__links a:hover, .nav__links a[aria-current="page"] { border-bottom-color: var(--ink); color: var(--ink); }
.nav__lang { font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-mute); }
.nav__lang a { text-decoration: none; }
.nav__lang [aria-current="true"] { color: var(--ink); font-weight: 600; }

/* --- Hero ---------------------------------------------------------------- */
.hero { position: relative; background: var(--dark); color: var(--on-dark); overflow: hidden; }
.hero__media { position: absolute; inset: 0; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; opacity: .38; filter: grayscale(1) contrast(1.1); }
.hero__inner {
  position: relative;
  display: grid; align-content: center;
  min-height: clamp(30rem, 76vh, 46rem);
  padding-block: var(--flow);
}
.hero h1 { max-width: 18ch; }
.hero .lede { max-width: 54ch; margin-top: 1.5rem; color: var(--on-dark); }
.hero__meta { margin-top: 2.5rem; font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; color: var(--on-dark-mute); }

/* --- Boutons ------------------------------------------------------------- */
.btn {
  display: inline-block; padding: .85rem 1.9rem;
  border: 1px solid currentColor; text-decoration: none;
  font-size: .85rem; font-weight: 500; letter-spacing: .1em; text-transform: uppercase;
  transition: background-color .18s, color .18s;
}
.btn:hover { background: var(--on-dark); color: var(--dark); }
.section:not(.section--dark) .btn:hover, .btn--ink:hover { background: var(--ink); color: var(--paper); }
.btn-row { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.25rem; }

/* --- Galerie ------------------------------------------------------------- */
.grid { display: grid; gap: clamp(2rem, 4vw, 3.5rem); grid-template-columns: repeat(auto-fit, minmax(min(21rem, 100%), 1fr)); margin-top: 3.5rem; }
.card { display: flex; flex-direction: column; text-decoration: none; color: inherit; }
.card__media { overflow: hidden; background: var(--paper-warm); aspect-ratio: 4 / 5; }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s cubic-bezier(.2,.6,.2,1); }
.card:hover .card__media img { transform: scale(1.035); }
.card__body { padding-top: 1.25rem; }
.card h3 { margin-bottom: .35rem; }
.card__date { font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-mute); }
.card__excerpt { font-size: .95rem; color: var(--ink-soft); margin-top: .75rem; }

/* --- Page œuvre ---------------------------------------------------------- */
.artwork__figure { margin: 0; background: var(--dark); }
.artwork__figure img { width: 100%; max-height: 82vh; object-fit: contain; margin-inline: auto; }
.artwork__caption { font-size: .85rem; color: var(--ink-mute); padding: 1rem var(--gutter); text-align: center; background: var(--paper-warm); margin: 0; }

.facts { list-style: none; margin: 0 0 3rem; padding: 0; display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
@media (min-width: 40rem) { .facts { grid-template-columns: repeat(2, 1fr); } }
.facts > div { background: var(--paper); padding: 1.15rem 1.35rem; }
.facts dt { font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-mute); margin-bottom: .3rem; }
.facts dd { margin: 0; font-weight: 500; }

.prose > h2 { margin-top: 2.75rem; margin-bottom: 1rem; }
.prose > h2:first-child { margin-top: 0; }
.prose blockquote {
  margin: 2.5rem 0; padding-left: 1.5rem;
  border-left: 2px solid var(--ink);
  font-family: var(--serif); font-size: 1.3rem; line-height: 1.45; font-style: italic;
}

/* --- Questions fréquentes ------------------------------------------------ */
.faq { margin-top: 4rem; padding-top: 3rem; border-top: 1px solid var(--line); }
.faq > h2 { margin-bottom: 2rem; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; list-style: none;
  padding: 1.15rem 2rem 1.15rem 0; position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary h3 {
  display: inline; font-family: var(--sans); font-size: 1.0625rem;
  font-weight: 500; letter-spacing: 0; line-height: 1.5;
}
.faq summary::after {
  content: "+"; position: absolute; right: .25rem; top: 1rem;
  font-size: 1.35rem; line-height: 1; color: var(--ink-mute);
  transition: transform .2s;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > p { margin: 0 0 1.5rem; color: var(--ink-soft); }

/* --- Fil d'ariane -------------------------------------------------------- */
.crumbs { font-size: .8rem; color: var(--ink-mute); padding-block: 1.25rem; }
.crumbs a { text-decoration: none; border-bottom: 1px solid var(--line); }
.crumbs a:hover { border-bottom-color: var(--ink); }
.crumbs span { margin-inline: .5rem; }

/* --- Suite / pagination -------------------------------------------------- */
.next { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(min(18rem, 100%), 1fr)); margin-top: 3rem; }
.next a { text-decoration: none; border: 1px solid var(--line); padding: 1.5rem; transition: border-color .18s; }
.next a:hover { border-color: var(--ink); }
.next .card__date { margin-bottom: .4rem; display: block; }

/* --- Pied de page -------------------------------------------------------- */
.footer { background: var(--dark); color: var(--on-dark-mute); padding-block: clamp(3rem, 6vw, 5rem); font-size: .9rem; }
.footer a { color: var(--on-dark); text-decoration: none; border-bottom: 1px solid #333; }
.footer a:hover { border-bottom-color: var(--on-dark); }
.footer__grid { display: grid; gap: 2.5rem; grid-template-columns: repeat(auto-fit, minmax(min(15rem, 100%), 1fr)); }
.footer h4 { font-family: var(--sans); font-size: .75rem; letter-spacing: .14em; text-transform: uppercase; color: var(--on-dark); margin-bottom: 1rem; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }
.footer__legal { margin-top: 3rem; padding-top: 1.75rem; border-top: 1px solid #262626; font-size: .8rem; }

/* --- Accessibilité ------------------------------------------------------- */
.skip {
  position: absolute; left: -9999px;
  background: var(--ink); color: var(--paper); padding: .75rem 1.25rem; z-index: 100;
}
.skip:focus { left: 1rem; top: 1rem; }
:focus-visible { outline: 2px solid #4d65ff; outline-offset: 3px; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}