/* Polices auto-hébergées */
@font-face { font-family: "IBM Plex Sans"; src: url("/assets/fonts/ibm-plex-sans-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("/assets/fonts/ibm-plex-sans-600-normal.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("/assets/fonts/ibm-plex-mono-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }

/* ---------- Structure commune ---------- */

:root {
  --max: 68rem;
  --gutter: 1rem;
}

@media (min-width: 40rem) {
  :root { --gutter: 2rem; }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
}

a { color: inherit; text-underline-offset: 0.2em; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

h1, h2, h3 { font-family: var(--font-display); margin: 0; }

ul.cards, ol.steps { list-style: none; margin: 0; padding: 0; }

/* En-tête */
.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding-block: 1.25rem;
}

.logo { text-decoration: none; }

.site-nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; font-size: 0.9375rem; }
.site-nav a { text-decoration: none; color: var(--muted); }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); }

/* Accueil */
.hero { padding-block: 4rem 3rem; }
.hero h1 { max-width: 16ch; font-size: clamp(2.5rem, 9vw, 5rem); line-height: 1.02; margin-bottom: 1.5rem; }
.eyebrow { margin: 0 0 1.25rem; font-size: 0.875rem; color: var(--muted); }
.lead { max-width: 36rem; font-size: 1.1875rem; color: var(--muted); margin: 0 0 2rem; }

.button {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  text-decoration: none;
  font-weight: 600;
  background: var(--text);
  color: var(--bg);
}

.block { padding-block: 4rem; }
.section-num { margin: 0 0 0.5rem; font-size: 0.875rem; color: var(--accent); }
.block h2 { font-size: clamp(1.875rem, 5vw, 2.75rem); line-height: 1.1; margin-bottom: 1rem; }
.intro { max-width: 36rem; color: var(--muted); margin: 0 0 2.5rem; }

.cards { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 40rem) { .cards-4, .cards-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 64rem) { .cards-4 { grid-template-columns: repeat(4, 1fr); } }

.card h3, .steps h3 { font-size: 1.25rem; line-height: 1.2; margin-bottom: 0.5rem; }
.card p, .steps p { margin: 0; color: var(--muted); }

.steps { display: grid; gap: 2rem; counter-reset: step; }
@media (min-width: 48rem) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li { counter-increment: step; }
.steps li::before { content: counter(step, decimal-leading-zero); display: block; margin-bottom: 0.75rem; color: var(--accent); }

.contact h2 { max-width: 26ch; }
.contact-mail { font-family: var(--font-display); font-size: clamp(1.5rem, 6vw, 2.5rem); word-break: break-word; }

/* Pages de contenu */
.page { padding-block: 3rem 5rem; }
.page .wrap { max-width: calc(44rem + 2 * var(--gutter)); }
.page h1 { font-size: clamp(2.25rem, 7vw, 3.5rem); line-height: 1.05; margin-bottom: 1rem; }
.page h2 { font-size: 1.375rem; line-height: 1.25; margin: 2.5rem 0 0.75rem; }
.page .contact-mail { font-size: 1.5rem; }
.meta { color: var(--muted); font-size: 0.9375rem; }

dl.legal { display: grid; grid-template-columns: 1fr; gap: 0.25rem 1.5rem; margin: 0; }
dl.legal dt { font-weight: 600; margin-top: 0.75rem; }
dl.legal dd { margin: 0; }
@media (min-width: 40rem) {
  dl.legal { grid-template-columns: 13rem 1fr; gap: 0.5rem 1.5rem; }
  dl.legal dt { margin-top: 0; }
}

/* Pied de page */
.site-footer { font-size: 0.875rem; color: var(--muted); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 1.5rem; padding-block: 2rem; }
.site-footer p { margin: 0; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; }

/* Marqueur d'information manquante : doit rester visible. */
.todo { background: #fff3b0; color: #6b4e00; padding: 0 0.25em; font-weight: 600; }


/* ---------- Thème « Plan » : grille fine, mono, orange signalétique ---------- */

:root {
  --bg: #f7f7f4;
  --text: #121212;
  --muted: #5a5a57;
  --line: #121212;
  --accent: #e8480c;
  --font-display: "IBM Plex Sans", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}
.logo { font-weight: 600; letter-spacing: -0.02em; }
.logo::before { content: ""; display: inline-block; width: 0.7em; height: 0.7em; margin-right: 0.45em; background: var(--accent); vertical-align: -0.05em; }
.site-header { border-bottom: 1px solid var(--line); }
.site-nav, .eyebrow, .section-num, .steps li::before, .meta, .site-footer {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
h1, h2 { font-weight: 600; letter-spacing: -0.035em; }
h3 { font-weight: 600; letter-spacing: -0.01em; }
.hero h1 { max-width: 18ch; }
.hero h1 em { font-style: normal; color: var(--accent); }
.eyebrow::before { content: "■ "; color: var(--accent); }
.button { background: var(--accent); color: #fff; }
.button::after { content: " →"; }
.block { border-top: 1px solid var(--line); }
.section-num::before { content: "§ "; }
.cards { gap: 0; border: 1px solid var(--line); }
.card { padding: 1.25rem; border-bottom: 1px solid var(--line); background: #fff; }
.card:last-child { border-bottom: 0; }
@media (min-width: 40rem) {
  .card { border-right: 1px solid var(--line); }
  .cards-2 .card:nth-child(2n), .cards-4 .card:nth-child(2n) { border-right: 0; }
  .cards .card:nth-last-child(-n+2) { border-bottom: 0; }
}
@media (min-width: 64rem) {
  .cards-4 .card:nth-child(n) { border-bottom: 0; border-right: 1px solid var(--line); }
  .cards-4 .card:last-child { border-right: 0; }
}
.steps li { border-top: 3px solid var(--text); padding-top: 1rem; }
.contact { background: var(--accent); color: #fff; border: 0; }
.contact .contact-mail { font-weight: 600; letter-spacing: -0.02em; }
.site-footer { border-top: 1px solid var(--line); color: var(--text); }