/* Atelier Ferrand (démo) · charte « artisan du bâtiment » : fond clair grisé,
   encre charbon, accent bois/ambre foncé, gros titres sans-serif très gras,
   lignes franches. Site de DÉMONSTRATION : entreprise et contenus fictifs,
   d'après le modèle « Artisan · Bâtiment & rénovation ». Mobile-first,
   cibles ≥ 44px. */
:root {
  --accent: #9a5b21;
  --accent-dark: #7c4517;
  --accent-soft: #f7efe4;
  --paper: #f6f5f2;
  --paper-deep: #e8e5de;
  --ink: #23211e;
  --muted: #6d675c;
  --ok: #0da152;
  --err: #b42318;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  /* Couche démo mutualisée (../_shared/demo.css) : palette du bandeau. */
  --ds-bg: #23211e;
  --ds-fg: #f4f1ea;
  --ds-accent: #cf9c62;
  --ds-accent-fg: #23211e;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 16px/1.65 var(--sans);
}
img { max-width: 100%; display: block; }
a { color: var(--accent); }
h1, h2, h3 { font-family: var(--sans); font-weight: 800; letter-spacing: -.015em; line-height: 1.12; }
h1 { font-size: clamp(2.1rem, 5.6vw, 3.4rem); margin: 0 0 .4em; }
h2 { font-size: clamp(1.45rem, 3.4vw, 2.1rem); margin: 0 0 .5em; }
.wrap { width: min(1080px, 100% - 40px); margin: 0 auto; }
.eyebrow {
  display: inline-block; font-size: .78rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent); font-weight: 800; margin-bottom: 10px;
}
.lead { font-size: 1.08rem; color: var(--muted); max-width: 60ch; }

/* ── Topbar ── */
.topbar {
  position: sticky; top: 0; z-index: 30; background: rgba(246, 245, 242, .93);
  backdrop-filter: blur(8px); border-bottom: 2px solid var(--ink);
}
.topbar .wrap { display: flex; align-items: center; gap: 18px; min-height: 62px; }
.brand { font-size: 1.18rem; font-weight: 800; letter-spacing: -.01em; color: var(--ink); text-decoration: none; }
.brand em { color: var(--accent); font-style: normal; }
.nav { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav a {
  text-decoration: none; color: var(--ink); font-weight: 700; font-size: .95rem;
  padding: 10px 12px; border-radius: 8px; min-height: 44px; display: inline-flex; align-items: center;
}
.nav a:hover { background: var(--paper-deep); }
.nav a.is-active { color: var(--accent); box-shadow: inset 0 -2px 0 var(--accent); border-radius: 8px 8px 0 0; }
.nav .cta {
  background: var(--accent); color: #fff; padding: 10px 20px; margin-left: 6px; border-radius: 8px;
}
.nav .cta:hover { background: var(--accent-dark); }
.nav .cta.is-active { color: #fff; box-shadow: none; border-radius: 8px; }
.burger {
  display: none; margin-left: auto; background: none; border: 0; cursor: pointer;
  width: 44px; height: 44px; border-radius: 8px; position: relative;
}
.burger span, .burger span::before, .burger span::after {
  content: ""; position: absolute; left: 10px; right: 10px; height: 2px;
  background: var(--ink); border-radius: 2px; transition: transform .2s, opacity .2s;
}
.burger span { top: 21px; }
.burger span::before { content: ""; top: -7px; left: 0; right: 0; }
.burger span::after { content: ""; top: 7px; left: 0; right: 0; }
body.nav-open .burger span { transform: rotate(45deg); }
body.nav-open .burger span::before { transform: rotate(-90deg) translateX(7px); }
body.nav-open .burger span::after { opacity: 0; }

/* ── Hero ── */
.hero { padding: 72px 0 56px; }
.hero .wrap { display: grid; gap: 36px; grid-template-columns: 1.1fr .9fr; align-items: center; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px;
  padding: 12px 26px; border-radius: 10px; font-weight: 800; text-decoration: none;
  border: 2px solid transparent; font-size: 1rem;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-dark); }
.btn--ghost { border-color: var(--ink); color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
.hero-note { margin-top: 14px; font-size: .9rem; color: var(--muted); }

/* Chips « corps de métier » */
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.chip {
  border: 1.5px solid var(--paper-deep); background: #fff; border-radius: 8px;
  padding: 7px 12px; font-size: .84rem; font-weight: 700; color: var(--muted);
}
.chip--accent { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-dark); }

/* Visuel du hero : composition CSS façon planches empilées (aucune image
   binaire dans la démo). */
.hero-art { position: relative; aspect-ratio: 4/4.2; }
.hero-art .plank {
  position: absolute; left: 4%; right: 12%; height: 12.5%; border-radius: 6px;
  background: linear-gradient(100deg, #c08a4e, #9a5b21 55%, #7c4517);
  box-shadow: 0 14px 28px rgba(35, 33, 30, .16);
}
.hero-art .plank:nth-child(1) { top: 4%;  transform: rotate(-1.4deg); background: linear-gradient(100deg, #cf9c62, #ad6f33 60%, #8a5220); }
.hero-art .plank:nth-child(2) { top: 19%; left: 8%; right: 6%; transform: rotate(.8deg); }
.hero-art .plank:nth-child(3) { top: 34%; transform: rotate(-.6deg); background: linear-gradient(100deg, #b57c40, #915424 55%, #6f3d13); }
.hero-art .plank:nth-child(4) { top: 49%; left: 10%; right: 8%; transform: rotate(1.1deg); background: linear-gradient(100deg, #d5a76e, #b5772f 60%, #935a22); }
.hero-art .plank:nth-child(5) { top: 64%; transform: rotate(-.9deg); }
.hero-art .hero-badge {
  position: absolute; right: 0; bottom: 3%; background: #fff; border: 1px solid var(--paper-deep);
  border-left: 4px solid var(--accent); border-radius: 12px; padding: 14px 18px;
  box-shadow: 0 16px 40px rgba(35, 33, 30, .14);
}
.hero-art .hero-badge b { display: block; font-size: 1.02rem; }
.hero-art .hero-badge span { color: var(--muted); font-size: .85rem; }

/* ── Sections ── */
section { padding: 56px 0; }
section.alt { background: #fff; border-block: 1px solid var(--paper-deep); }
.grid-3 { display: grid; gap: 22px; grid-template-columns: repeat(3, 1fr); margin-top: 30px; }
.card {
  background: #fff; border: 1px solid var(--paper-deep); border-radius: 14px; padding: 26px 24px;
}
section.alt .card { background: var(--paper); }
.card h3 { margin: 0 0 8px; font-size: 1.12rem; }
.card p { margin: 0; color: var(--muted); font-size: .96rem; }
.card ul { margin: 8px 0 0; padding-left: 18px; color: var(--muted); font-size: .95rem; }
.card li { padding: 2px 0; }

/* ── Bandeau réassurance ── */
.assure { padding: 26px 0; background: var(--ink); }
.assure .wrap { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }
.assure-item { border-left: 4px solid var(--accent); padding: 4px 0 4px 16px; }
.assure-item b { display: block; color: #fff; font-size: 1rem; }
.assure-item span { color: #b6b0a5; font-size: .88rem; }

/* ── « Comment on travaille » : 4 étapes numérotées ── */
.steps {
  counter-reset: step; list-style: none; padding: 0; margin: 30px 0 0;
  display: grid; gap: 22px; grid-template-columns: repeat(4, 1fr);
}
.steps li {
  counter-increment: step; background: #fff; border: 1px solid var(--paper-deep);
  border-top: 4px solid var(--accent); border-radius: 14px; padding: 22px 20px;
}
.steps li::before {
  content: counter(step, decimal-leading-zero); display: block;
  font-weight: 800; font-size: 1.7rem; color: var(--accent); margin-bottom: 6px;
}
.steps h3 { margin: 0 0 6px; font-size: 1.02rem; }
.steps p { margin: 0; color: var(--muted); font-size: .92rem; }

/* ── Réalisations ── */
.works { display: grid; gap: 22px; grid-template-columns: repeat(3, 1fr); margin-top: 30px; }
.work-card {
  background: #fff; border: 1px solid var(--paper-deep); border-radius: 14px;
  overflow: hidden; display: flex; flex-direction: column;
}
/* Visuels = illustrations SVG dessinées pour la démo (assets/illus/) : sur un
   site livré, les photos de chantier du vrai client prennent leur place. */
.work-visual {
  display: block; width: 100%; height: 156px; object-fit: cover;
  background: var(--accent-soft); border-bottom: 1px solid var(--paper-deep);
}
.work-body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.work-body h3 { margin: 0; font-size: 1.08rem; }
.work-meta { display: flex; gap: 10px; flex-wrap: wrap; font-size: .82rem; color: var(--muted); font-weight: 700; }
.work-meta span { background: var(--paper); border-radius: 6px; padding: 4px 8px; }
.work-body p { margin: 0; color: var(--muted); font-size: .93rem; }
.ba { margin: 0; padding: 12px 14px; background: var(--accent-soft); border-radius: 10px; font-size: .9rem; color: var(--ink); }
.ba b { color: var(--accent-dark); }
.work-detail { margin: 0; font-size: .86rem; color: var(--muted); border-top: 1px dashed var(--paper-deep); padding-top: 10px; }
.work-detail b { color: var(--ink); }

/* ── Contact / zone d'intervention ── */
.info-grid { display: grid; gap: 22px; grid-template-columns: repeat(3, 1fr); margin-top: 26px; }
.hours { list-style: none; margin: 10px 0 0; padding: 0; font-size: .95rem; }
.hours li { display: flex; justify-content: space-between; gap: 12px; padding: 4px 0; }
.hours .closed { color: var(--muted); }
.zone-list { list-style: none; margin: 16px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.zone-list li {
  border: 1.5px solid var(--paper-deep); background: #fff; border-radius: 8px;
  padding: 8px 13px; font-size: .9rem; font-weight: 700;
}
.zone-list li.zone-main { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-dark); }
.zone-note { margin-top: 18px; color: var(--muted); font-size: .92rem; max-width: 62ch; }

/* ── Bandeau CTA ── */
.band { background: var(--accent); color: #fff; text-align: center; }
.band h2 { color: #fff; }
.band .btn--primary { background: #fff; color: var(--accent); }
.band p { color: rgba(255, 255, 255, .85); }

/* ── Formulaire de devis (ids st-*, envoi simulé par ../_shared/demo.js) ── */
.devis-layout { display: grid; gap: 34px; grid-template-columns: 1.05fr .95fr; align-items: start; }
form#st-form label { display: block; font-weight: 700; font-size: .9rem; margin: 14px 0 5px; }
form#st-form input, form#st-form select, form#st-form textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px; border: 1.5px solid var(--paper-deep);
  font: inherit; background: #fff; color: var(--ink); min-height: 46px;
}
form#st-form textarea { min-height: 130px; resize: vertical; }
form#st-form input:focus, form#st-form select:focus, form#st-form textarea:focus {
  outline: none; border-color: var(--accent);
}
.form-row { display: grid; gap: 0 16px; grid-template-columns: 1fr 1fr; }
/* Une règle d'auteur posant un display bat le [hidden] du navigateur : la règle
   ci-dessous garde le masquage par attribut opérant sur ces lignes de champs. */
.form-row[hidden] { display: none; }
.st-hp { position: absolute !important; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.st-status { margin-top: 16px; padding: 12px 16px; border-radius: 10px; font-weight: 700; }
.st-status--ok { background: #e7f6ec; color: #0b7a3e; border: 1px solid #cdead8; }
.st-status--err { background: #fdecec; color: var(--err); border: 1px solid #f6c9cc; }
.st-status[hidden] { display: none; }

/* ── Footer ── */
footer { background: var(--ink); color: #cfc9be; padding: 44px 0 30px; margin-top: 40px; }
footer .wrap { display: grid; gap: 26px; grid-template-columns: 1.2fr 1fr 1fr; }
footer h4 { color: #fff; font-weight: 800; margin: 0 0 10px; }
footer a { color: #cfc9be; }
footer ul { list-style: none; margin: 0; padding: 0; font-size: .93rem; }
footer li { padding: 3px 0; }
.foot-legal { grid-column: 1 / -1; border-top: 1px solid #3d3831; padding-top: 16px; font-size: .82rem; color: #97917f; }

/* ── Apparition au scroll (progressive enhancement, cf. main.js) ── */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .5s ease, transform .5s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ── Responsive ── */
@media (max-width: 880px) {
  .hero .wrap, .devis-layout { grid-template-columns: 1fr; }
  .grid-3, .info-grid, .works, .assure .wrap { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  footer .wrap { grid-template-columns: 1fr; }
  .burger { display: block; }
  .nav {
    display: none; position: absolute; top: 62px; left: 0; right: 0;
    background: var(--paper); border-bottom: 2px solid var(--ink);
    flex-direction: column; align-items: stretch; padding: 10px 16px 16px; gap: 2px;
  }
  body.nav-open .nav { display: flex; }
  .nav a { min-height: 48px; }
  .nav a.is-active { box-shadow: inset 3px 0 0 var(--accent); border-radius: 8px; }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .steps { grid-template-columns: 1fr; }
}