/* Ilm, site public (pages légales et support). Tokens de design/DESIGN.md, modes jour et nuit. */

@font-face { font-family: 'EB Garamond'; src: url('/fonts/EBGaramond_400Regular.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'EB Garamond'; src: url('/fonts/EBGaramond_400Regular_Italic.woff2') format('woff2'); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: 'EB Garamond'; src: url('/fonts/EBGaramond_500Medium.woff2') format('woff2'); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: 'EB Garamond'; src: url('/fonts/EBGaramond_600SemiBold_Italic.woff2') format('woff2'); font-weight: 600; font-style: italic; font-display: swap; }
@font-face { font-family: 'Geist'; src: url('/fonts/Geist_400Regular.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Geist'; src: url('/fonts/Geist_500Medium.woff2') format('woff2'); font-weight: 500; font-display: swap; }

:root {
  color-scheme: light dark;
  --bg: #F3F2EE;
  --raise: #FBFAF7;
  --ink: #16181D;
  --ink2: #5C6068;
  --body: #2A2D33;
  --line: #DDDAD2;
  --link: #8C6418;
  --gold: #A07C2C;
  --gold-line: rgba(160, 124, 44, .5);
  --grain: url('/img/grain-jour.png');
  --serif: 'EB Garamond', Garamond, 'Times New Roman', serif;
  --ui: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0C110F;
    --raise: #141B18;
    --ink: #F2EDE3;
    --ink2: #A9B2AC;
    --body: #DCD6CA;
    --line: #222B27;
    --link: #E3B455;
    --gold: #D9B25E;
    --gold-line: rgba(217, 178, 94, .45);
    --grain: url('/img/grain-nuit.png');
  }
}

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

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

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--body);
  font: 400 1.1875rem/1.65 var(--serif);
  font-variant-numeric: oldstyle-nums proportional-nums;
  text-rendering: optimizeLegibility;
}

/* Grain de papier : calque fixe, jamais sur un conteneur qui défile. */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: var(--grain);
  background-size: 320px 320px;
}

a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--link); outline-offset: 3px; border-radius: 3px; }

.skip {
  position: absolute;
  left: 16px;
  top: -60px;
  padding: 10px 14px;
  background: var(--raise);
  font: 500 .9375rem var(--ui);
  border-radius: 12px;
}
.skip:focus { top: 12px; }

.wrap { width: 100%; max-width: 46rem; margin: 0 auto; padding: 0 20px; }

/* En-tête */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
  border-bottom: 1px solid var(--line);
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: italic 600 1.625rem/1 var(--serif);
  color: var(--ink);
  text-decoration: none;
  padding: 8px 0;
}
.logo img { width: 34px; height: 34px; border-radius: 8px; }
.nav { display: flex; gap: 4px 18px; flex-wrap: wrap; justify-content: flex-end; }
.nav a {
  font: 500 .9375rem/1 var(--ui);
  color: var(--ink2);
  text-decoration: none;
  padding: 14px 0;
}
.nav a:hover, .nav a[aria-current='page'] { color: var(--ink); }
.nav a[aria-current='page'] { box-shadow: inset 0 -1px 0 var(--gold); }

/* Texte */
main { padding: 48px 0 72px; }
h1, h2, h3 { color: var(--ink); font-family: var(--serif); font-weight: 500; text-wrap: balance; }
h1 { font-size: clamp(2.125rem, 6vw, 2.75rem); line-height: 1.12; margin: 0; letter-spacing: -.01em; }
.updated { font: 400 .9375rem/1.4 var(--ui); color: var(--ink2); margin: 14px 0 0; }
.rule { height: 1px; border: 0; margin: 32px 0 8px; background: linear-gradient(90deg, var(--gold-line), transparent 80%); }
h2 { font-size: 1.5rem; line-height: 1.25; margin: 2.4em 0 .5em; }
h3 { font-size: 1.1875rem; font-weight: 500; margin: 1.6em 0 .3em; }
p, ul, ol { margin: 0 0 1em; max-width: 65ch; }
ul, ol { padding-left: 1.25em; }
li { margin: .35em 0; }
li::marker { color: var(--gold); }
strong { color: var(--ink); font-weight: 500; }
.lead { font-size: 1.3125rem; line-height: 1.55; color: var(--ink); }

/* Sommaire : une seule colonne de liens, sans boîte. */
.toc { margin: 24px 0 0; padding: 0; list-style: none; columns: 2 16rem; column-gap: 32px; }
.toc li { margin: 0; break-inside: avoid; }
.toc a { display: block; padding: 6px 0; font: 400 1rem/1.4 var(--ui); color: var(--ink2); text-decoration: none; }
.toc a:hover { color: var(--ink); }

/* Tableau des données : lignes séparées par un seul filet. */
.data { width: 100%; border-collapse: collapse; margin: 8px 0 24px; font-size: 1.0625rem; line-height: 1.5; }
.data th { font: 500 .875rem/1.3 var(--ui); color: var(--ink2); text-align: left; padding: 0 12px 10px 0; }
.data td { padding: 12px 12px 12px 0; vertical-align: top; border-top: 1px solid var(--line); }
.data td:first-child { color: var(--ink); width: 34%; }

/* Questions du support */
details { border-top: 1px solid var(--line); }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 32px 16px 0;
  position: relative;
  color: var(--ink);
  font-weight: 500;
  font-size: 1.25rem;
  line-height: 1.35;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: '';
  position: absolute;
  right: 6px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--gold);
  border-bottom: 1.5px solid var(--gold);
  transform: translateY(-70%) rotate(45deg);
  transition: transform .2s ease;
}
details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
details > :not(summary) { margin-top: 0; }
details > :last-child { margin-bottom: 20px; }

.contact {
  margin: 8px 0 40px;
  padding: 22px 24px;
  background: var(--raise);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.contact p { margin: 0; }
.contact .mail { margin-top: 10px; }
.contact a { font-size: 1.3125rem; }

/* Accueil */
.home { display: grid; gap: 40px; align-items: center; padding-top: 56px; }
.home h1 { font-size: clamp(2.5rem, 8vw, 3.5rem); line-height: 1.08; }
.home .lead { margin-top: 20px; }
.badge { font: 400 1rem/1.4 var(--ui); color: var(--ink2); margin-top: 28px; }
.icon { width: 76px; height: 76px; border-radius: 18px; display: block; margin-bottom: 28px; box-shadow: 0 1px 0 var(--line), 0 10px 30px rgba(22, 24, 29, .08); }
.ebru {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  max-width: 300px;
  justify-self: center;
  object-fit: cover;
  border-radius: 3px;
  box-shadow: 0 18px 50px rgba(22, 24, 29, .18);
}
.pillars { max-width: none; margin: 56px 0 0; padding: 32px 0 0; border-top: 1px solid var(--line); display: grid; gap: 22px; list-style: none; }
.pillars li { margin: 0; }
.pillars strong { display: block; font-size: 1.25rem; }
.pillars span { color: var(--ink2); font-size: 1.0625rem; }

@media (min-width: 760px) {
  .wrap { max-width: 60rem; }
  .prose { max-width: 46rem; }
  .home { grid-template-columns: 1.3fr 1fr; gap: 64px; }
  .pillars { grid-template-columns: 1fr 1fr; gap: 28px 48px; }
}

/* Pied de page */
.foot {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  font: 400 .9375rem/1.6 var(--ui);
  color: var(--ink2);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
}
.foot a { color: var(--ink2); }
.foot nav { display: flex; flex-wrap: wrap; gap: 4px 20px; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}