/* ============================================================
   TEMPERIS — Feuille de style unique
   Idée directrice : le duo chaud / froid (bleu glacier + orange)
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root {
  /* Froid */
  --cold-900: #082f45;
  --cold-800: #0b3e5c;
  --cold-700: #0d5c86;
  --cold-500: #0ea5e9;
  --cold-300: #7dd3fc;
  --cold-100: #e0f2fe;
  --cold-50:  #f0f9ff;

  /* Chaud */
  --warm-700: #c2410c;
  --warm-600: #ea580c;
  --warm-500: #f97316;
  --warm-300: #fdba74;
  --warm-100: #ffedd5;

  /* Neutres */
  --ink:      #0f1b26;
  --slate:    #47586b;
  --muted:    #6b7c8e;
  --line:     #e3ebf2;
  --bg:       #ffffff;
  --bg-soft:  #f5f9fc;
  --bg-cool:  #eef6fb;

  /* Système */
  --radius:   16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(15,27,38,.06), 0 2px 8px rgba(15,27,38,.05);
  --shadow-md: 0 6px 24px rgba(8,47,69,.10);
  --shadow-lg: 0 20px 50px rgba(8,47,69,.16);
  --grad-hot-cold: linear-gradient(120deg, var(--cold-700) 0%, var(--cold-500) 42%, var(--warm-500) 100%);
  --grad-warm: linear-gradient(120deg, var(--warm-600), var(--warm-500));
  --grad-cold: linear-gradient(140deg, var(--cold-800), var(--cold-600, #0d6ba0));
  --maxw: 1160px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ---------- 2. Reset léger ---------- */
*, *::before, *::after { box-sizing: border-box; }
/* Garde-fou : rien ne peut provoquer de défilement horizontal.
   'clip' (et non 'hidden') n'établit pas de conteneur de défilement,
   donc l'en-tête sticky continue de fonctionner. */
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: clip; }
body {
  overflow-x: clip;
  max-width: 100%;
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
body.nav-locked { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--cold-700); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.18; color: var(--ink); font-weight: 750; letter-spacing: -.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5vw, 3.15rem); }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.2rem); }
h3 { font-size: 1.22rem; }
p { margin: 0 0 1rem; }
ul, ol { margin: 0 0 1rem; padding-left: 1.25rem; }
strong { font-weight: 700; }

/* ---------- 3. Utilitaires ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.section { padding: 68px 0; }
.section--soft { background: var(--bg-soft); }
.section--cool { background: var(--bg-cool); }
.section--ink { background: var(--cold-900); color: #dbe9f2; }
.section--ink h2, .section--ink h3 { color: #fff; }
.narrow { max-width: 760px; }
.center { text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: .5em;
  font-size: .82rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--cold-700); margin-bottom: .8rem;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--warm-500); border-radius: 2px; }
.lead { font-size: 1.16rem; color: var(--slate); }
.text-balance { text-wrap: balance; }

/* ---------- 4. Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: 14px 24px; border-radius: 999px; font-weight: 700; font-size: 1rem;
  border: 2px solid transparent; cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s;
  text-decoration: none; line-height: 1;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn--primary { background: var(--grad-warm); color: #fff; box-shadow: 0 8px 20px rgba(234,88,12,.28); }
.btn--primary:hover { box-shadow: 0 12px 28px rgba(234,88,12,.36); }
.btn--cold { background: var(--cold-700); color: #fff; }
.btn--cold:hover { background: var(--cold-800); }
.btn--ghost { background: #fff; color: var(--cold-800); border-color: var(--line); box-shadow: var(--shadow-sm); }
.btn--ghost:hover { border-color: var(--cold-300); }
.btn--light { background: rgba(255,255,255,.14); color: #fff; border-color: rgba(255,255,255,.35); }
.btn--light:hover { background: rgba(255,255,255,.24); }
.btn--lg { padding: 17px 30px; font-size: 1.06rem; }
.btn--block { width: 100%; }

/* ---------- 5. En-tête / navigation ---------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 20px; height: 72px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; font-size: 1.28rem; color: var(--ink); letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.brand__mark { width: 34px; height: 34px; flex: 0 0 auto; }
.brand__name b { color: var(--cold-800); }

/* ============================================================
   NAVIGATION — refaite de zéro. Principe : uniquement display,
   aucune animation de hauteur, aucune largeur fixe en px.
   Desktop (>960px) : liste horizontale, sous-menus au survol.
   Mobile (≤960px)  : panneau plein écran, sous-menus accordéon.
   ============================================================ */
.nav { margin-left: auto; }
.nav__list { list-style: none; display: flex; align-items: center; gap: 2px; margin: 0; padding: 0; }
.nav__item { position: relative; }

.nav__link,
.nav__btn {
  display: inline-flex; align-items: center; gap: .4em;
  padding: 10px 14px; border-radius: 10px; font-weight: 600; font-size: .98rem;
  color: var(--ink); background: none; border: 0; cursor: pointer; font-family: inherit;
  text-decoration: none; white-space: nowrap; line-height: 1.4;
}
.nav__link:hover, .nav__btn:hover { background: var(--bg-cool); text-decoration: none; }
.nav__link.is-active { color: var(--cold-700); }
.nav__caret { width: 11px; height: 11px; flex: 0 0 auto; }

/* Sous-menu desktop : caché par défaut (display:none), affiché au
   survol / focus clavier. Le padding-top transparent fait le pont
   entre le bouton et la boîte pour ne pas perdre le survol. */
.nav__sub {
  display: none;
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
  padding-top: 10px; z-index: 70; background: transparent;
  width: max-content; max-width: min(600px, 92vw);
}
@media (min-width: 961px) {
  .nav__item--sub:hover .nav__sub,
  .nav__item--sub:focus-within .nav__sub { display: block; }
}

.nav__panel {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  box-shadow: var(--shadow-lg); padding: 10px 0 8px; overflow: hidden;
}
.nav__sub--services .nav__panel {
  column-count: 2; column-gap: 0; padding: 12px 6px;
}
.nav__subtitle {
  margin: 0; padding: 10px 18px 3px;
  font-size: .72rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
  color: var(--warm-600);
  break-inside: avoid;
}
.nav__sublink {
  display: block; padding: 8px 18px;
  color: var(--slate); font-size: .94rem; font-weight: 500; text-decoration: none;
  break-inside: avoid;
}
.nav__sublink:hover { background: var(--cold-50); color: var(--cold-800); text-decoration: none; }
.nav__sublink--all { font-weight: 700; color: var(--cold-800); }

.header-cta { display: inline-flex; align-items: center; gap: 12px; }
.header-phone {
  display: inline-flex; align-items: center; gap: 9px; font-weight: 800; color: var(--ink); white-space: nowrap;
  padding: 9px 16px; border-radius: 999px; border: 2px solid var(--cold-100); background: var(--cold-50);
}
.header-phone:hover { text-decoration: none; border-color: var(--cold-300); }
.header-phone svg { width: 17px; height: 17px; color: var(--warm-600); }

/* Bouton d'appel compact (affiché uniquement sur mobile) */
.header-call { display: none; width: 46px; height: 46px; border-radius: 50%; background: var(--grad-warm); color: #fff; align-items: center; justify-content: center; box-shadow: 0 6px 16px rgba(234,88,12,.32); flex: 0 0 auto; }
.header-call:hover { text-decoration: none; color: #fff; }
.header-call svg { width: 20px; height: 20px; }

.burger { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 11px; background: #fff; cursor: pointer; padding: 0; align-items: center; justify-content: center; }
.burger span { display: block; width: 20px; height: 2px; background: var(--ink); position: relative; transition: .2s; }
.burger span::before, .burger span::after { content: ""; position: absolute; left: 0; width: 20px; height: 2px; background: var(--ink); transition: .2s; }
.burger span::before { top: -6px; } .burger span::after { top: 6px; }
.burger.is-active span { background: transparent; }
.burger.is-active span::before { top: 0; transform: rotate(45deg); }
.burger.is-active span::after { top: 0; transform: rotate(-45deg); }

/* ---------- 6. Hero ---------- */
.hero { position: relative; background: var(--grad-hot-cold); color: #fff; overflow: hidden; }
.hero::after {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background:
    radial-gradient(680px 380px at 82% -8%, rgba(255,255,255,.28), transparent 60%),
    radial-gradient(560px 420px at 8% 110%, rgba(8,47,69,.55), transparent 60%);
  pointer-events: none;
}
.hero .hero__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center; padding: 74px 20px 84px; }
.hero__badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.3); padding: 7px 14px; border-radius: 999px; font-size: .84rem; font-weight: 700; margin-bottom: 20px; }
.hero h1 { color: #fff; margin-bottom: 18px; }
.hero__lead { font-size: 1.22rem; color: #eaf6ff; max-width: 34ch; margin-bottom: 30px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.hero__phone { color: #fff; font-weight: 800; font-size: 1.12rem; display: inline-flex; align-items: center; gap: 9px; }
.hero__phone:hover { text-decoration: none; opacity: .9; }
.hero__points { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 28px; padding: 0; list-style: none; }
.hero__points li { display: inline-flex; align-items: center; gap: 8px; font-size: .95rem; color: #eaf6ff; font-weight: 500; }
.hero__points li::before { content: "✓"; display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; background: rgba(255,255,255,.2); font-size: .72rem; font-weight: 800; }

/* Carte visuelle du hero (thermo split chaud/froid) */
.hero__visual { position: relative; }
.thermo-card { background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.25); border-radius: 22px; padding: 26px; box-shadow: var(--shadow-lg); backdrop-filter: blur(6px); }
.thermo-split { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.thermo-tile { border-radius: 16px; padding: 20px 18px; color: #fff; }
.thermo-tile.cold { background: linear-gradient(160deg, #0d5c86, #0ea5e9); }
.thermo-tile.hot { background: linear-gradient(160deg, #ea580c, #f59e0b); }
.thermo-tile .t-ico { font-size: 1.6rem; }
.thermo-tile .t-val { font-size: 2rem; font-weight: 800; letter-spacing: -.03em; margin-top: 6px; }
.thermo-tile .t-lab { font-size: .82rem; opacity: .9; }
.thermo-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 16px; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.2); color: #eaf6ff; font-size: .86rem; }
.rge-badge { display: inline-flex; align-items: center; gap: 8px; background: #fff; color: var(--cold-900); font-weight: 800; font-size: .8rem; padding: 7px 13px; border-radius: 999px; }
.rge-badge b { color: var(--warm-600); }

/* ---------- 7. Cartes services / groupes ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow-sm); transition: transform .16s, box-shadow .16s, border-color .16s;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--cold-100); }
.card__ico { width: 50px; height: 50px; border-radius: 13px; display: grid; place-items: center; margin-bottom: 16px; background: var(--cold-50); color: var(--cold-700); }
.card__ico svg { width: 26px; height: 26px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--slate); font-size: .98rem; margin-bottom: 16px; }
.card__links { list-style: none; padding: 0; margin: 0 0 18px; display: flex; flex-wrap: wrap; gap: 7px; }
.card__links a { font-size: .86rem; font-weight: 600; color: var(--cold-800); background: var(--cold-50); padding: 5px 11px; border-radius: 999px; }
.card__links a:hover { background: var(--cold-100); text-decoration: none; }
.card__more { margin-top: auto; font-weight: 700; color: var(--warm-600); font-size: .95rem; }
.card__more:hover { text-decoration: none; }
.card__more::after { content: " →"; }

/* Carte "vedette" du premier groupe */
.card--feature { grid-column: span 2; background: linear-gradient(135deg, var(--cold-900), var(--cold-700)); color: #fff; border: 0; }
.card--feature h3, .card--feature h2 { color: #fff; }
.card--feature p { color: #d5e9f5; }
.card--feature .card__ico { background: rgba(255,255,255,.14); color: #fff; }
.card--feature .card__links a { background: rgba(255,255,255,.14); color: #fff; }
.card--feature .card__links a:hover { background: rgba(255,255,255,.24); }
.card--feature .card__more { color: var(--warm-300); }

/* ---------- 8. Réassurance ---------- */
.reassure-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.reassure { text-align: left; }
.reassure__ico { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: var(--warm-100); color: var(--warm-700); margin-bottom: 12px; }
.reassure__ico svg { width: 24px; height: 24px; }
.reassure h3 { font-size: 1.05rem; margin-bottom: 5px; }
.reassure p { font-size: .92rem; color: var(--slate); margin: 0; }

/* ---------- 11. CTA bande ---------- */
.cta-band { background: var(--grad-hot-cold); color: #fff; border-radius: 24px; padding: 48px; text-align: center; position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; inset: 0; background: radial-gradient(500px 300px at 90% 0, rgba(255,255,255,.2), transparent 60%); }
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 { color: #fff; }
.cta-band p { color: #eaf6ff; max-width: 52ch; margin: 0 auto 24px; }
.cta-band .btn-row { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* ---------- 12. Contenu éditorial (pages services / guides) ---------- */
.page-hero { background: var(--bg-cool); border-bottom: 1px solid var(--line); padding: 34px 0 40px; }
.breadcrumb { font-size: .84rem; color: var(--muted); margin-bottom: 14px; }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 7px; padding: 0; margin: 0; }
.breadcrumb li::after { content: "›"; margin-left: 7px; color: var(--line); }
.breadcrumb li:last-child::after { content: ""; }
.breadcrumb a { color: var(--slate); }
.page-hero h1 { margin-bottom: 10px; }
.page-hero .lead { max-width: 62ch; }

.prose { font-size: 1.03rem; }
.prose h2 { margin-top: 1.8em; }
.prose h3 { margin-top: 1.5em; color: var(--cold-800); }
.prose ul li { margin-bottom: .4em; }
.prose ul { list-style: none; padding-left: 0; }
.prose ul li { position: relative; padding-left: 28px; }
.prose ul li::before { content: ""; position: absolute; left: 4px; top: .55em; width: 12px; height: 12px; border-radius: 4px; background: var(--warm-100); border: 2px solid var(--warm-500); }
.prose table { width: 100%; border-collapse: collapse; margin: 1.2em 0; font-size: .95rem; }
.prose th, .prose td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.prose th { background: var(--cold-50); font-weight: 700; color: var(--cold-900); }
.prose tbody tr:hover { background: var(--bg-soft); }

.layout { display: grid; grid-template-columns: 1fr 320px; gap: 44px; align-items: start; }
.aside { position: sticky; top: 92px; display: grid; gap: 18px; }
.aside-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow-sm); }
.aside-card--cta { background: linear-gradient(150deg, var(--cold-900), var(--cold-700)); color: #fff; }
.aside-card--cta h3 { color: #fff; } .aside-card--cta p { color: #d5e9f5; font-size: .93rem; }
.aside-card h3 { font-size: 1.08rem; }
.aside-links { list-style: none; padding: 0; margin: 0; }
.aside-links li { border-bottom: 1px solid var(--line); }
.aside-links li:last-child { border: 0; }
.aside-links a { display: block; padding: 10px 0; font-weight: 600; color: var(--slate); font-size: .95rem; }
.aside-links a:hover { color: var(--cold-700); text-decoration: none; }
.aside-links a::before { content: "→"; color: var(--warm-500); margin-right: 8px; }

/* Encart réassurance inline */
.callout { background: var(--cold-50); border: 1px solid var(--cold-100); border-left: 4px solid var(--warm-500); border-radius: var(--radius-sm); padding: 20px 22px; margin: 1.6em 0; }
.callout h3 { margin-top: 0; color: var(--cold-900); }
.callout p:last-child { margin-bottom: 0; }

/* ---------- 13. FAQ ---------- */
.faq { max-width: 820px; margin: 0 auto; }
.faq-item { border: 1px solid var(--line); border-radius: 12px; margin-bottom: 12px; background: #fff; overflow: hidden; }
.faq-q { width: 100%; text-align: left; background: none; border: 0; padding: 18px 22px; font-size: 1.04rem; font-weight: 700; color: var(--ink); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; font-family: inherit; }
.faq-q::after { content: "+"; font-size: 1.5rem; font-weight: 400; color: var(--warm-600); transition: transform .2s; flex: 0 0 auto; }
.faq-item.is-open .faq-q::after { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .28s ease; }
.faq-item.is-open .faq-a { max-height: 460px; }
.faq-a__inner { padding: 0 22px 20px; color: var(--slate); }

/* ---------- 14. Formulaires ---------- */
.form-wrap { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-md); }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: 7px; color: var(--ink); }
.field .req { color: var(--warm-600); }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 15px; border: 1.5px solid var(--line); border-radius: 11px;
  font-size: 1rem; font-family: inherit; color: var(--ink); background: #fff; transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--cold-500); box-shadow: 0 0 0 3px var(--cold-100); }
.field textarea { min-height: 130px; resize: vertical; }
.field.is-error input, .field input.is-error, .field.is-error select, .field select.is-error, .field textarea.is-error { border-color: #dc2626; box-shadow: 0 0 0 3px #fee2e2; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-note { font-size: .82rem; color: var(--muted); margin-top: 4px; }
.form-alert { padding: 15px 18px; border-radius: 11px; margin-bottom: 22px; font-weight: 600; }
.form-alert--ok { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.form-alert--err { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

/* Bloc téléphone contact */
.phone-block { background: linear-gradient(150deg, var(--cold-900), var(--cold-700)); color: #fff; border-radius: var(--radius); padding: 34px; text-align: center; }
.phone-block h2 { color: #fff; }
.phone-block .big-phone { font-size: clamp(1.8rem, 5vw, 2.6rem); font-weight: 800; color: #fff; display: inline-flex; align-items: center; gap: 12px; margin: 8px 0 14px; letter-spacing: -.02em; }
.phone-block .big-phone:hover { text-decoration: none; color: var(--warm-300); }
.phone-block p { color: #d5e9f5; }

/* ---------- 15. Simulateur ---------- */
.sim-note { background: var(--warm-100); border: 1px solid var(--warm-300); border-radius: var(--radius-sm); padding: 16px 20px; font-size: .93rem; color: var(--warm-700); }

/* ---------- 16. Pied de page ---------- */
.site-footer { background: var(--cold-900); color: #b9d0e0; padding: 56px 0 26px; font-size: .94rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 34px; }
.site-footer h4 { color: #fff; font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 14px; }
.site-footer a { color: #b9d0e0; }
.site-footer a:hover { color: #fff; }
.footer-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; color: #fff; margin-bottom: 12px; }
.footer-brand .brand__mark { width: 30px; height: 30px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 9px; }
.footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-contact li { margin-bottom: 9px; display: flex; gap: 9px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 40px; padding-top: 20px; display: flex; flex-wrap: wrap; gap: 10px 22px; justify-content: space-between; align-items: center; font-size: .85rem; color: #8fb0c6; }
.footer-legal { display: flex; flex-wrap: wrap; gap: 8px 18px; }

/* ---------- 18. Divers ---------- */
.badge-strip { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center; }
.pill { display: inline-flex; align-items: center; gap: 8px; background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 8px 15px; font-size: .88rem; font-weight: 600; color: var(--slate); box-shadow: var(--shadow-sm); }
.pill svg { width: 16px; height: 16px; color: var(--warm-600); }
.section-head { max-width: 680px; margin-bottom: 40px; }
.section-head.center { margin-left: auto; margin-right: auto; }
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
.steps { counter-reset: step; list-style: none; padding: 0; display: grid; gap: 16px; }
.steps li { position: relative; padding-left: 56px; }
.steps li::before { counter-increment: step; content: counter(step); position: absolute; left: 0; top: -2px; width: 38px; height: 38px; border-radius: 50%; background: var(--grad-warm); color: #fff; font-weight: 800; display: grid; place-items: center; }
.steps li strong { display: block; color: var(--ink); }

/* ---------- 19. Responsive ---------- */
@media (max-width: 960px) {
  .header-inner { height: 64px; gap: 10px; }
  .burger { display: inline-flex; order: 3; }
  .header-cta { order: 2; margin-left: auto; gap: 8px; }
  .header-cta .header-phone { display: none; }
  .header-call { display: inline-flex; }

  /* ===== Menu mobile : panneau plein écran + accordéon =====
     Uniquement display:none/block. Pas d'animation de hauteur,
     pas de transform, pas de largeur fixe : rien ne peut déborder
     ni s'afficher à moitié. */
  .nav {
    display: none;
    position: fixed; top: 64px; left: 0; right: 0; bottom: 0;
    margin: 0; padding: 4px 16px 40px;
    background: #fff; border-top: 1px solid var(--line);
    overflow-y: auto; -webkit-overflow-scrolling: touch;
  }
  .nav.is-open { display: block; }
  .nav__list { display: block; }
  .nav__item { position: static; }
  .nav__link,
  .nav__btn {
    display: flex; width: 100%; justify-content: space-between; align-items: center; gap: 10px;
    padding: 15px 4px; font-size: 1.06rem; border-radius: 0;
    border-bottom: 1px solid var(--line); white-space: normal; text-align: left;
  }
  /* Sous-menu accordéon : fermé par défaut, ouvert par la classe is-open (JS) */
  .nav__sub {
    display: none;
    position: static; transform: none; padding: 0;
    width: auto; max-width: none;
  }
  .nav__item--sub.is-open .nav__sub { display: block; }
  .nav__item--sub.is-open .nav__caret { transform: rotate(180deg); }
  .nav__panel { border: 0; border-radius: 0; box-shadow: none; padding: 0; background: #fff; }
  .nav__sub--services .nav__panel { column-count: auto; padding: 0; }
  .nav__subtitle { padding: 14px 6px 4px; }
  .nav__sublink {
    padding: 13px 6px 13px 20px; font-size: 1rem;
    border-bottom: 1px solid rgba(15,27,38,.07);
    white-space: normal; overflow-wrap: anywhere;
  }
  .nav__sublink--all { padding-left: 6px; }

  .hero .hero__inner { grid-template-columns: 1fr; gap: 30px; padding: 40px 16px 56px; }
  .hero__visual { max-width: 420px; }
  .layout { grid-template-columns: 1fr; }
  .aside { position: static; }
  .grid-3, .grid-4, .reassure-grid { grid-template-columns: repeat(2, 1fr); }
  .card--feature { grid-column: span 2; }
}
@media (max-width: 620px) {
  body { font-size: 16px; }
  .section { padding: 44px 0; }
  .container { padding: 0 16px; }
  .grid-2, .grid-3, .grid-4, .reassure-grid, .field-row, .thermo-split { grid-template-columns: 1fr; }
  .card--feature { grid-column: span 1; }
  .card { padding: 22px; }
  .section-head { margin-bottom: 28px; }
  /* Boutons pleine largeur et empilés : cibles tactiles confortables */
  .hero__cta { flex-direction: column; align-items: stretch; gap: 12px; }
  .hero__cta .btn { width: 100%; }
  .hero__phone { justify-content: center; padding: 6px 0; }
  .cta-band { padding: 32px 20px; }
  .cta-band .btn-row { flex-direction: column; }
  .cta-band .btn-row .btn { width: 100%; }
  .btn--lg { padding: 15px 22px; }
  .phone-block .big-phone { font-size: 1.7rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px 18px; }
  .footer-grid > * { min-width: 0; }
  .footer-brand { grid-column: span 2; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 12px; }
}
@media (max-width: 380px) {
  h1 { font-size: 1.85rem; }
  .brand__name { font-size: 1.12rem; }
}

/* ---------- 20. Accessibilité ---------- */
:focus-visible { outline: 3px solid var(--cold-500); outline-offset: 2px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto; } }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--warm-600); color: #fff; padding: 10px 16px; z-index: 100; border-radius: 0 0 8px 0; }
.skip-link:focus { left: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* ---------- 21. Images de contenu & preuves ---------- */
/* Photo principale en tête d'article (pages services) */
.article-figure { margin: 0 0 28px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); background: var(--bg-soft); }
.article-figure img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.article-figure figcaption { font-size: .82rem; color: var(--muted); padding: 10px 16px; background: #fff; border-top: 1px solid var(--line); }

/* Photo en colonne latérale (formats portrait) */
.aside-figure { margin: 0 0 20px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; box-shadow: var(--shadow-sm); }
.aside-figure img { display: block; width: 100%; height: auto; }
.aside-figure figcaption { font-size: .8rem; color: var(--muted); padding: 9px 14px; border-top: 1px solid var(--line); }

/* Logo officiel d'un dispositif d'aide (MaPrimeRénov', CEE) */
.aid-logo { display: inline-block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px 22px; margin: 0 0 24px; }
.aid-logo img { display: block; width: 100%; max-width: 280px; height: auto; }

/* Badges de confiance (RGE Qualibat, garantie décennale) */
.badge-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin: 18px 0 28px; }
.badge-row img { height: 92px; width: auto; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 10px; box-shadow: var(--shadow-sm); }
.badge-row--center { justify-content: center; margin: 30px 0 0; }

/* Grande photo pleine largeur (accueil, à propos) */
.photo-band { margin: 38px 0 0; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); }
.photo-band img { display: block; width: 100%; height: auto; aspect-ratio: 21 / 9; object-fit: cover; }

/* Bande de confiance sous le hero (accueil) */
.trust-strip { padding: 36px 0 10px; border-bottom: 1px solid var(--line); }
.trust-strip .badge-row { justify-content: center; margin: 0; }

/* Bande des marques installées */
.brands-note { text-align: center; color: var(--muted); font-size: .9rem; margin: 34px 0 0; }
.trust-strip .brands-note { margin-top: 24px; }
.brands-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 14px; margin-top: 14px; }
.brands-strip figure { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 10px 16px; display: flex; align-items: center; justify-content: center; }
.brands-strip img { width: 100%; max-width: 140px; height: auto; }

@media (max-width: 640px) {
  .photo-band img { aspect-ratio: 16 / 10; }
  .badge-row img { height: 74px; }
  .article-figure img { aspect-ratio: 4 / 3; }
}

/* ===== Sites locaux : nom de ville sous le logo ===== */
.brand__city{display:block;font-size:.6rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#5b7a8f;line-height:1.1;margin-top:1px;}
.site-footer .footer-brand{align-items:center;}
.zone-chips{display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:14px 0 0;list-style:none;}
.zone-chips li{background:#eef6fb;border:1px solid #d3e7f3;color:#0b3e5c;border-radius:999px;padding:5px 13px;font-size:.88rem;font-weight:600;}