:root {
  --paper: #f6f2ea;
  --soft: #eee7d9;
  --ink: #1c1b19;
  --muted: #625d53;
  --line: #d9d0bf;
  --accent: #a94f27;
  --accent-ink: #ffffff;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #171614;
    --soft: #1f1d19;
    --ink: #ebe6da;
    --muted: #a8a193;
    --line: #35312a;
    --accent: #e0905f;
    --accent-ink: #1b1209;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 18px/1.65 var(--sans);
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; }
a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

.skip {
  position: absolute; left: 12px; top: -48px;
  background: var(--ink); color: var(--paper); padding: 8px 14px; z-index: 10;
  text-decoration: none; border-radius: 4px;
}
.skip:focus { top: 12px; }

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }

/* En-tête */
.site-head { padding: 22px 0; }
.site-head .wrap { display: flex; align-items: baseline; justify-content: space-between; gap: 12px 32px; flex-wrap: wrap; }
.brand { font: 600 1.3rem/1 var(--serif); color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.site-head nav { display: flex; gap: 6px 26px; flex-wrap: wrap; }
.site-head nav a {
  color: var(--muted); text-decoration: none; font-size: .95rem;
  padding: 4px 0; border-bottom: 2px solid transparent;
}
.site-head nav a:hover { color: var(--ink); }
.site-head nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }

/* Titres */
h1, h2, h3 { font-family: var(--serif); font-weight: 500; letter-spacing: -.015em; line-height: 1.15; margin: 0; }
h1 { font-size: clamp(2.05rem, 4.8vw, 3.2rem); max-width: 24ch; }
h2 { font-size: clamp(1.6rem, 3vw, 2.05rem); }
h3 { font-size: 1.3rem; }
.kicker { font-size: .85rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 0 0 16px; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 58ch; margin: 22px 0 0; }
p { margin: 0 0 1em; }
.prose { max-width: 62ch; }
.prose p:last-child { margin-bottom: 0; }
.muted { color: var(--muted); }

/* Boutons */
.actions { display: flex; flex-wrap: wrap; gap: 12px 14px; margin-top: 32px; }
.btn {
  display: inline-block; padding: 12px 22px; border-radius: 4px; border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-ink); text-decoration: none; font-weight: 600; font-size: .98rem;
}
button.btn { font: inherit; font-weight: 600; font-size: .98rem; cursor: pointer; }
.btn:hover { opacity: .9; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--ink); }

/* Sections */
.hero { padding: 64px 0 28px; }
.ridge { display: block; width: 100%; height: 84px; color: var(--line); margin-top: 24px; }
.ridge path { fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.ridge .accent { stroke: var(--accent); opacity: .55; }

section.block { padding: 68px 0 0; }
.block > .wrap > h2 { margin-bottom: 14px; }
.intro { color: var(--muted); max-width: 58ch; margin: 0 0 36px; }

.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; }
.trio > div { border-top: 1px solid var(--line); padding-top: 18px; }
.trio h3 { margin-bottom: 10px; }
.trio p { color: var(--muted); margin-bottom: 12px; }
.more { font-size: .95rem; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px; counter-reset: step; }
.steps li { counter-increment: step; border-top: 1px solid var(--line); padding-top: 14px; }
.steps li::before { content: counter(step); display: block; font: 500 2.4rem/1 var(--serif); color: var(--accent); margin-bottom: 10px; }
.steps strong { display: block; font-family: var(--serif); font-weight: 500; font-size: 1.2rem; margin-bottom: 6px; }
.steps span { color: var(--muted); font-size: .98rem; display: block; }

.about-teaser { display: grid; grid-template-columns: 1fr 1.6fr; gap: 40px; align-items: start; border-top: 1px solid var(--line); padding-top: 28px; }

.cta { margin-top: 84px; background: var(--soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 56px 0; }
.cta h2 { max-width: 20ch; }
.cta p { color: var(--muted); max-width: 52ch; margin: 14px 0 0; }

/* Pages intérieures */
.page-head { padding: 56px 0 8px; }
.page-head h1 { max-width: 22ch; }

.service { display: grid; grid-template-columns: 1fr 1.7fr; gap: 24px 48px; padding: 44px 0; border-top: 1px solid var(--line); }
.service h2 { font-size: 1.7rem; }
.service .tag { color: var(--muted); font-size: .95rem; margin-top: 10px; }
.service h3 { font-size: 1.05rem; font-family: var(--sans); font-weight: 600; letter-spacing: 0; margin: 22px 0 6px; }
.service h3:first-child { margin-top: 0; }
.service ul, .prose ul { margin: 0 0 1em; padding-left: 1.3em; list-style: "– "; }
.service li, .prose li { margin-bottom: 6px; padding-left: .3em; }
.service p { color: var(--ink); }

.tool { border: 1px solid var(--line); background: var(--soft); border-radius: 6px; padding: 24px; max-width: 560px; margin-top: 22px; }
.tool h3 { font: 600 1.05rem var(--sans); letter-spacing: 0; margin-bottom: 4px; }
.tool .muted { font-size: .92rem; margin-bottom: 18px; }
.tool .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.tool label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: 4px; }
.tool input, .tool select {
  width: 100%; padding: 10px 12px; font: inherit; font-size: 1rem;
  color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 4px;
}
.tool dl { display: grid; grid-template-columns: 1fr auto; gap: 6px 16px; margin: 6px 0 0; padding-top: 14px; border-top: 1px solid var(--line); }
.tool dt { color: var(--muted); }
.tool dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.tool dd.total { font-weight: 700; }

.project { display: grid; grid-template-columns: 1fr 1.7fr; gap: 20px 48px; padding: 40px 0; border-top: 1px solid var(--line); }
.project h2 { font-size: 1.6rem; }
.project .tag { color: var(--muted); font-size: .95rem; margin-top: 10px; }
.project dl { margin: 0; }
.project dt { font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-top: 18px; }
.project dt:first-child { margin-top: 0; }
.project dd { margin: 4px 0 0; }

.contact-box { border: 1px solid var(--line); background: var(--soft); border-radius: 6px; padding: 28px; max-width: 620px; margin: 28px 0; }
.contact-box .mail { font: 500 1.7rem/1.2 var(--serif); word-break: break-word; margin: 0; user-select: all; }
.contact-box .mail a { color: var(--ink); text-decoration-color: var(--accent); }
.contact-box .actions { margin-top: 20px; }
.small { font-size: .92rem; margin: 14px 0 0; }

/* Pied de page */
.site-foot { margin-top: 0; border-top: 1px solid var(--line); padding: 28px 0 56px; color: var(--muted); font-size: .92rem; }
.site-foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 32px; }
.site-foot a { color: var(--muted); }
.site-foot nav { display: flex; gap: 6px 20px; flex-wrap: wrap; }
main > .wrap:last-child { padding-bottom: 84px; }

@media (max-width: 860px) {
  .trio, .steps { grid-template-columns: 1fr 1fr; }
  .about-teaser, .service, .project { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  body { font-size: 17px; }
  .wrap { padding: 0 18px; }
  .hero { padding-top: 36px; }
  .trio, .steps { grid-template-columns: 1fr; gap: 28px; }
  section.block { padding-top: 52px; }
  .tool .row { grid-template-columns: 1fr; }
  .contact-box .mail { font-size: 1.35rem; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* ---------- Ajouts : situations, engagements, exemple, FAQ, formulaire ---------- */
.strip { color: var(--muted); max-width: 60ch; margin: 0; }

.pairs { margin: 0; border-top: 1px solid var(--line); }
.pairs > div { display: grid; grid-template-columns: 1fr 1.4fr; gap: 10px 40px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.pairs dt { font: 500 1.3rem/1.3 var(--serif); letter-spacing: -.01em; }
.pairs dd { margin: 0; color: var(--muted); }

.promises { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 48px; }
.promises > div { border-top: 1px solid var(--line); padding-top: 16px; }
.promises h3 { font-size: 1.2rem; margin-bottom: 6px; }
.promises p { margin: 0; color: var(--muted); }

.example-teaser { background: var(--soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-top: 68px; padding: 52px 0; }
.example-teaser .wrap { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
.example-teaser p { color: var(--muted); max-width: 48ch; margin: 14px 0 0; }
.mini { border: 1px solid var(--line); border-radius: 6px; overflow: hidden; background: #fbf8f2; color: #26221c; box-shadow: 0 1px 0 var(--line); }
.mini .bar { display: flex; gap: 6px; padding: 9px 12px; background: #ece5d6; }
.mini .bar i { width: 9px; height: 9px; border-radius: 50%; background: #cfc5ae; }
.mini .body { padding: 22px 20px 26px; background: repeating-linear-gradient(100deg, rgba(150,105,60,.07) 0 2px, transparent 2px 9px), #f6efe2; }
.mini .brand-demo { font: 600 .85rem var(--serif); color: #2f5d46; }
.mini .t { font: 500 1.35rem/1.2 var(--serif); margin: 10px 0 6px; }
.mini .s { font-size: .85rem; color: #6a6052; }

.faq { max-width: 760px; }
.faq details { border-top: 1px solid var(--line); padding: 18px 0; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font: 500 1.2rem/1.35 var(--serif); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font: 400 1.5rem/1 var(--sans); }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 12px 0 0; color: var(--muted); max-width: 62ch; }

/* Formulaire */
.form { max-width: 640px; }
.form .field { margin-bottom: 18px; }
.form label { display: block; font-size: .92rem; color: var(--muted); margin-bottom: 6px; }
.form input[type="text"], .form input[type="email"], .form textarea {
  width: 100%; padding: 12px 14px; font: inherit; font-size: 1rem; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line); border-radius: 4px;
}
.form textarea { min-height: 170px; resize: vertical; line-height: 1.5; }
.form .help { font-size: .88rem; color: var(--muted); margin: 6px 0 0; }
.form .two { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-etat { margin: 18px 0 0; padding: 14px 16px; border-radius: 4px; border: 1px solid var(--line); background: var(--soft); max-width: 640px; }
.form-etat.error { border-color: var(--accent); }
.form .legal { font-size: .88rem; color: var(--muted); margin: 14px 0 0; max-width: 62ch; }
.or { color: var(--muted); margin: 30px 0 0; }

/* Page exemple */
.demo-note { background: var(--soft); border: 1px solid var(--line); border-radius: 6px; padding: 14px 18px; margin: 28px 0 22px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; font-size: .95rem; }
.demo-note p { margin: 0; color: var(--muted); max-width: 70ch; }
.demo { --d-ink: #26221c; --d-muted: #6a6052; --d-bg: #fbf8f2; --d-line: #e4dac6; --d-green: #2f5d46; --d-wood: #a8763e;
  border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--d-bg); color: var(--d-ink); }
.demo a { color: var(--d-green); }
.demo .chrome { display: flex; gap: 6px; padding: 10px 14px; background: #ece5d6; }
.demo .chrome i { width: 10px; height: 10px; border-radius: 50%; background: #cfc5ae; }
.demo-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px 24px; flex-wrap: wrap; padding: 20px 32px; border-bottom: 1px solid var(--d-line); }
.demo-head .logo { font: 600 1.25rem var(--serif); color: var(--d-green); }
.demo-head nav { display: flex; gap: 6px 22px; flex-wrap: wrap; font-size: .95rem; }
.demo-head nav a { color: var(--d-muted); text-decoration: none; }
.demo-hero { padding: 72px 32px; background: repeating-linear-gradient(100deg, rgba(150,105,60,.07) 0 2px, transparent 2px 10px), #f4ecdd; border-bottom: 1px solid var(--d-line); }
.demo-hero h2 { font: 500 clamp(2rem, 5vw, 3rem)/1.1 var(--serif); max-width: 16ch; margin: 0 0 14px; }
.demo-hero p { color: var(--d-muted); max-width: 46ch; margin: 0 0 26px; }
.demo-btn { display: inline-block; background: var(--d-green); color: #fff !important; padding: 12px 22px; border-radius: 4px; text-decoration: none; font-weight: 600; }
.demo-sec { padding: 52px 32px 0; }
.demo-sec h3 { font: 500 1.6rem var(--serif); margin-bottom: 22px; }
.demo-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.demo-cols h4 { font: 600 1.05rem var(--serif); margin: 0 0 6px; }
.demo-cols p { margin: 0; color: var(--d-muted); font-size: .98rem; }
.demo-photos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.demo-photos figure { margin: 0; }
.demo-photos .ph { height: 140px; border-radius: 4px; }
.demo-photos .p1 { background: repeating-linear-gradient(100deg, rgba(60,35,10,.18) 0 2px, transparent 2px 8px), #b98a54; }
.demo-photos .p2 { background: repeating-linear-gradient(100deg, rgba(255,255,255,.14) 0 2px, transparent 2px 9px), #7d9a86; }
.demo-photos .p3 { background: repeating-linear-gradient(100deg, rgba(60,35,10,.15) 0 2px, transparent 2px 7px), #d4b88a; }
.demo-photos figcaption { font-size: .9rem; color: var(--d-muted); margin-top: 8px; }
.demo-steps { list-style: none; counter-reset: ds; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.demo-steps li { counter-increment: ds; border-top: 1px solid var(--d-line); padding-top: 12px; color: var(--d-muted); font-size: .97rem; }
.demo-steps li::before { content: counter(ds); display: block; font: 500 1.8rem/1 var(--serif); color: var(--d-wood); margin-bottom: 8px; }
.demo-steps strong { display: block; color: var(--d-ink); font-family: var(--serif); font-weight: 600; margin-bottom: 4px; }
.demo-contact { margin: 52px 32px 0; padding: 30px; background: #efe6d3; border-radius: 6px; }
.demo-contact h3 { font: 500 1.5rem var(--serif); margin: 0 0 8px; }
.demo-contact p { margin: 0 0 6px; color: var(--d-muted); }
.demo-foot { margin-top: 52px; padding: 20px 32px; border-top: 1px solid var(--d-line); font-size: .9rem; color: var(--d-muted); }

@media (max-width: 860px) {
  .pairs > div, .example-teaser .wrap, .promises { grid-template-columns: 1fr; }
  .demo-cols, .demo-photos { grid-template-columns: 1fr; }
  .demo-steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .form .two { grid-template-columns: 1fr; }
  .demo-head, .demo-hero, .demo-sec, .demo-foot { padding-left: 18px; padding-right: 18px; }
  .demo-contact { margin-left: 18px; margin-right: 18px; }
  .demo-hero { padding-top: 44px; padding-bottom: 44px; }
  .demo-steps { grid-template-columns: 1fr; }
}