/* =====================================================
   Climalife54 — Nancy
   Palette : glacier / petrol / flamme
   Type : Bricolage Grotesque (display) · Instrument Sans (body) · IBM Plex Mono (data)
   ===================================================== */

:root {
  --ink: #10222E;
  --petrol: #163B4D;
  --frost: #EEF4F6;
  --white: #FFFFFF;
  --cool: #2E96C4;
  --cool-deep: #1E7099;
  --warm: #ED6A2F;
  --warm-deep: #C94F1B;
  --line: #D8E4E9;
  --muted: #5A7280;

  --font-display: "Bricolage Grotesque", system-ui, sans-serif;
  --font-body: "Instrument Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --radius: 14px;
  --radius-lg: 22px;
  --maxw: 1160px;
  --pad: clamp(20px, 4vw, 48px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--frost);
  line-height: 1.6;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

h1, h2, h3 { font-family: var(--font-display); line-height: 1.08; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); font-weight: 700; letter-spacing: -0.01em; }
h2 em, h1 em { font-style: normal; color: var(--cool-deep); }
h3 { font-size: 1.15rem; font-weight: 700; }

.mono { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.04em; }

a { color: inherit; }

.skip-link {
  position: absolute; left: -999px; top: 8px; z-index: 200;
  background: var(--ink); color: #fff; padding: 8px 16px; border-radius: 8px;
}
.skip-link:focus { left: 8px; }

:focus-visible { outline: 3px solid var(--cool); outline-offset: 2px; }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-body); font-weight: 600; font-size: 0.95rem;
  padding: 13px 24px; border-radius: 999px; text-decoration: none;
  border: none; cursor: pointer; transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--warm); color: #fff; box-shadow: 0 6px 18px rgba(237,106,47,.28); }
.btn-primary:hover { background: var(--warm-deep); }

.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--ink); }
.btn-ghost:hover { background: rgba(16,34,46,.06); }

.btn-call { background: var(--ink); color: #fff; font-family: var(--font-mono); font-size: .85rem; padding: 10px 18px; white-space: nowrap; }
.btn-call:hover { background: var(--petrol); }

.btn-urgence { background: var(--warm); color: #fff; font-size: 1.25rem; font-family: var(--font-mono); padding: 16px 30px; box-shadow: 0 8px 24px rgba(237,106,47,.35); }
.btn-urgence:hover { background: var(--warm-deep); }

.btn-block { width: 100%; justify-content: center; }

/* ---------- Topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; gap: 28px;
  padding: 12px var(--pad);
  background: rgba(238,244,246,.88); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark { width: 26px; height: 26px; }
.brand-name { font-family: var(--font-display); font-weight: 800; font-size: 1.18rem; letter-spacing: -0.02em; }
.brand-54 { color: var(--cool-deep); }

.topnav { display: flex; gap: 22px; margin-left: auto; }
.topnav a { text-decoration: none; font-weight: 500; font-size: .92rem; color: var(--muted); }
.topnav a:hover { color: var(--ink); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(900px 480px at 85% -10%, rgba(46,150,196,.20), transparent 65%),
    radial-gradient(700px 420px at -10% 100%, rgba(46,150,196,.10), transparent 60%);
  transition: opacity .6s ease;
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0;
  background:
    radial-gradient(900px 480px at 85% -10%, rgba(237,106,47,.20), transparent 65%),
    radial-gradient(700px 420px at -10% 100%, rgba(237,106,47,.10), transparent 60%);
  transition: opacity .6s ease;
}
.hero[data-mode="hiver"]::before { opacity: 0; }
.hero[data-mode="hiver"]::after { opacity: 1; }

.hero-inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(40px, 7vw, 84px) var(--pad) clamp(36px, 5vw, 64px);
  display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(28px, 5vw, 64px);
  align-items: center;
}

.eyebrow {
  color: var(--cool-deep); text-transform: uppercase; font-weight: 500;
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px;
}
.eyebrow-light { color: #9CC8DE; }
.temp-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: linear-gradient(135deg, var(--cool), var(--warm));
}

.hero-title { font-size: clamp(2.2rem, 5.2vw, 3.6rem); font-weight: 800; letter-spacing: -0.02em; }

.hero-line-swap { position: relative; display: inline-block; }
.swap-ete, .swap-hiver { transition: opacity .45s ease; }
.swap-ete { color: var(--cool-deep); }
.swap-hiver { position: absolute; left: 0; top: 0; opacity: 0; color: var(--warm-deep); white-space: nowrap; }
.hero[data-mode="hiver"] .swap-ete { opacity: 0; }
.hero[data-mode="hiver"] .swap-hiver { opacity: 1; }

.hero-sub { margin-top: 18px; max-width: 46ch; color: var(--muted); font-size: 1.05rem; }
.hero-sub strong { color: var(--ink); }

/* Toggle été/hiver */
.hero-toggle { display: flex; align-items: center; gap: 12px; margin-top: 26px; }
.toggle-label-ete { color: var(--cool-deep); font-weight: 500; }
.toggle-label-hiver { color: var(--warm-deep); font-weight: 500; }
.toggle-hint { color: var(--muted); }
.toggle-track {
  width: 58px; height: 30px; border-radius: 999px; border: none; cursor: pointer;
  background: linear-gradient(90deg, var(--cool), var(--warm));
  position: relative; flex-shrink: 0;
}
.toggle-thumb {
  position: absolute; top: 3px; left: 3px; width: 24px; height: 24px;
  background: #fff; border-radius: 50%; box-shadow: 0 2px 6px rgba(16,34,46,.3);
  transition: left .3s cubic-bezier(.6,.05,.3,1.4);
}
.hero[data-mode="hiver"] .toggle-thumb { left: 31px; }

.hero-ctas { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }

.hero-proof { display: flex; align-items: center; gap: 12px; margin-top: 30px; max-width: 52ch; }
.stars { color: #F4A825; letter-spacing: 2px; font-size: .95rem; }
.hero-proof p { font-size: .9rem; color: var(--muted); }
.hero-proof strong { color: var(--ink); }

/* Hero visual */
.hero-visual { position: relative; }
.hero-photo {
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: 0 24px 60px rgba(16,34,46,.22);
  position: relative;
}
.hero-photo img { width: 100%; height: clamp(320px, 40vw, 460px); object-fit: cover; }
.photo-chip {
  position: absolute; left: 14px; bottom: 14px;
  background: rgba(16,34,46,.82); backdrop-filter: blur(6px);
  color: #fff; padding: 8px 14px; border-radius: 10px;
}
.chip-hiver { display: none; }
.hero[data-mode="hiver"] .chip-ete { display: none; }
.hero[data-mode="hiver"] .chip-hiver { display: inline; }

.badge-rge {
  position: absolute; top: -18px; right: -10px;
  background: var(--white); border: 1px solid var(--line);
  border-radius: 50%; width: 108px; height: 108px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  box-shadow: 0 10px 30px rgba(16,34,46,.15);
  rotate: 6deg;
}
.badge-rge-top { font-size: .6rem; color: var(--muted); letter-spacing: .14em; }
.badge-rge-main { font-family: var(--font-display); font-weight: 800; font-size: 1.7rem; color: var(--cool-deep); line-height: 1; }
.badge-rge-sub { font-size: .8rem; font-weight: 600; color: var(--warm-deep); }

/* Règle de température — signature divider */
.temp-ruler {
  height: 5px;
  background: linear-gradient(90deg, var(--cool) 0%, #7fc3e0 35%, #f0b48a 65%, var(--warm) 100%);
}

/* ---------- Trustbar ---------- */
.trustbar { background: var(--ink); color: #fff; }
.trustbar ul {
  max-width: var(--maxw); margin: 0 auto; padding: 22px var(--pad);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; list-style: none;
}
.trustbar li { display: flex; flex-direction: column; gap: 2px; }
.trust-num { font-size: 1.25rem; font-weight: 500; color: #7FC3E0; }
.trustbar li span:last-child { font-size: .85rem; color: rgba(255,255,255,.65); }

/* ---------- Sections génériques ---------- */
.section { padding: clamp(56px, 8vw, 104px) var(--pad); }
.section > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }

.section-head { margin-bottom: clamp(32px, 5vw, 56px); }
.section-lede { margin-top: 14px; color: var(--muted); max-width: 58ch; }

/* ---------- Services ---------- */
.services-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.service-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 22px; display: flex; flex-direction: column; gap: 12px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: 0 14px 34px rgba(16,34,46,.10); }
.service-card p { font-size: .92rem; color: var(--muted); flex-grow: 1; }
.service-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
}
.service-icon.cool { background: rgba(46,150,196,.13); color: var(--cool-deep); }
.service-icon.warm { background: rgba(237,106,47,.13); color: var(--warm-deep); }
.service-icon.urgent { background: var(--ink); color: #FFD166; }
.service-tag { color: var(--cool-deep); font-weight: 500; }
.service-card-urgent { border-color: var(--ink); }
.service-card-urgent .service-tag { color: var(--warm-deep); }

/* ---------- Urgence ---------- */
.urgence { background: linear-gradient(120deg, var(--ink) 0%, var(--petrol) 100%); color: #fff; }
.urgence-inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(48px, 6vw, 72px) var(--pad);
  display: grid; grid-template-columns: 1.4fr .8fr; gap: 40px; align-items: center;
}
.urgence h2 { color: #fff; }
.urgence-sub { margin-top: 16px; color: rgba(255,255,255,.72); font-size: .95rem; max-width: 52ch; font-style: italic; }
.urgence-cta { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; justify-self: end; }
.urgence-horaires { color: rgba(255,255,255,.6); }

/* ---------- Aides ---------- */
.section-aides { background: var(--white); }
.aides-wrap {
  display: grid; grid-template-columns: .95fr 1.05fr; gap: clamp(28px, 5vw, 64px);
  align-items: start;
}
.simulateur {
  background: var(--frost); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 28px; display: flex; flex-direction: column; gap: 16px;
  position: sticky; top: 84px;
}
.sim-title { font-size: 1.2rem; }
.sim-field label { display: block; font-weight: 600; font-size: .88rem; margin-bottom: 6px; }
.sim-field select, .field select, .field input {
  width: 100%; padding: 12px 14px; border-radius: 10px; border: 1.5px solid var(--line);
  font-family: var(--font-body); font-size: .95rem; background: var(--white); color: var(--ink);
}
.sim-field select:focus, .field select:focus, .field input:focus { border-color: var(--cool); outline: none; }
.sim-result {
  background: var(--ink); color: #fff; border-radius: var(--radius);
  padding: 18px 20px; text-align: center;
}
.sim-result-label { color: #7FC3E0; text-transform: uppercase; }
.sim-result-amount { font-family: var(--font-display); font-size: 2rem; font-weight: 800; margin: 4px 0; }
.sim-result-note { font-size: .82rem; color: rgba(255,255,255,.65); }
.sim-disclaimer { font-size: .76rem; color: var(--muted); line-height: 1.5; }

.aides-points { list-style: none; display: flex; flex-direction: column; gap: 28px; padding-top: 8px; }
.aides-points li { display: flex; gap: 18px; align-items: flex-start; }
.aide-num {
  color: var(--warm-deep); font-weight: 500; font-size: .9rem;
  border: 1px solid var(--line); border-radius: 8px; padding: 6px 9px;
  background: var(--frost);
}
.aides-points h4 { font-family: var(--font-display); font-size: 1.05rem; margin-bottom: 4px; }
.aides-points p { color: var(--muted); font-size: .93rem; max-width: 52ch; }

/* ---------- Réalisations ---------- */
.gallery {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.gallery-item {
  position: relative; border-radius: var(--radius); overflow: hidden;
  background: var(--white); border: 1px solid var(--line);
}
.gallery-item img { width: 100%; height: 280px; object-fit: cover; transition: transform .35s ease; }
.gallery-item:hover img { transform: scale(1.03); }
.g-wide { grid-column: span 2; }
.g-wide img { height: 280px; }
.gallery-item figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 30px 16px 12px;
  background: linear-gradient(transparent, rgba(16,34,46,.82));
  color: #fff; font-size: .88rem; font-weight: 500;
  display: flex; flex-direction: column; gap: 1px;
}
.gallery-item figcaption .mono { color: #7FC3E0; font-size: .68rem; text-transform: uppercase; }

/* ---------- Avis ---------- */
.section-avis { background: var(--white); }
.avis-note { font-family: var(--font-display); color: var(--warm-deep); }
.avis-sur { font-size: .6em; color: var(--muted); }
.avis-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.avis-card {
  background: var(--frost); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; display: flex; flex-direction: column; gap: 12px;
}
.avis-card p { font-size: .95rem; }
.avis-card footer { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.avis-card cite { font-style: normal; font-weight: 600; font-size: .9rem; }
.avis-card footer .mono { color: var(--muted); font-size: .7rem; }
.avis-source { margin-top: 18px; font-size: .8rem; color: var(--muted); }

/* ---------- Zone ---------- */
.zone-wrap {
  display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(28px, 5vw, 56px);
  align-items: center; max-width: var(--maxw); margin: 0 auto;
}
.zone-villes {
  list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px;
}
.zone-villes li {
  border: 1px solid var(--line); background: var(--white);
  border-radius: 999px; padding: 6px 14px; font-size: .78rem; color: var(--petrol);
}
.zone-map { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); box-shadow: 0 14px 40px rgba(16,34,46,.12); }
.zone-map iframe { width: 100%; height: 400px; border: none; display: block; }

/* ---------- Contact ---------- */
.section-contact { background: linear-gradient(150deg, var(--ink), var(--petrol)); color: #fff; }
.contact-wrap {
  display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(32px, 5vw, 64px);
  max-width: var(--maxw); margin: 0 auto; align-items: start;
}
.contact-text h2 { color: #fff; margin-bottom: 14px; }
.contact-text > p { color: rgba(255,255,255,.75); margin-bottom: 24px; max-width: 44ch; }
.contact-coords { font-style: normal; margin-top: 28px; display: flex; flex-direction: column; gap: 10px; }
.contact-coords p { color: rgba(255,255,255,.75); font-size: .92rem; }
.contact-coords strong { color: #fff; }
.contact-coords .mono { color: #7FC3E0; }

.devis-form {
  background: var(--white); color: var(--ink);
  border-radius: var(--radius-lg); padding: clamp(24px, 3vw, 36px);
  box-shadow: 0 24px 60px rgba(0,0,0,.25);
}
.form-steps { display: flex; gap: 14px; margin-bottom: 22px; }
.step-dot { color: var(--muted); font-size: .72rem; padding-bottom: 6px; border-bottom: 2px solid transparent; }
.step-dot.active { color: var(--warm-deep); border-color: var(--warm); font-weight: 500; }

.form-step { display: none; border: none; }
.form-step.active { display: block; }
.form-step legend { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; margin-bottom: 18px; }

.radio-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 20px; }
.radio-cards label { position: relative; cursor: pointer; }
.radio-cards input { position: absolute; opacity: 0; }
.radio-cards span {
  display: flex; align-items: center; justify-content: center; text-align: center;
  min-height: 68px; padding: 10px; border: 1.5px solid var(--line); border-radius: 12px;
  font-weight: 600; font-size: .88rem; line-height: 1.3; transition: all .15s ease;
}
.radio-cards input:checked + span { border-color: var(--cool-deep); background: rgba(46,150,196,.08); color: var(--cool-deep); }
.radio-cards input:focus-visible + span { outline: 3px solid var(--cool); outline-offset: 2px; }

.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: .88rem; margin-bottom: 6px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.optional { color: var(--muted); font-weight: 400; }

.step-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 6px; }
.form-privacy { font-size: .76rem; color: var(--muted); margin-top: 14px; }

.form-success { text-align: center; padding: 30px 10px; }
.success-icon {
  width: 60px; height: 60px; margin: 0 auto 16px; border-radius: 50%;
  background: rgba(46,150,196,.12); color: var(--cool-deep);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; font-weight: 700;
}
.form-success p { color: var(--muted); margin-top: 8px; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 780px; display: flex; flex-direction: column; gap: 12px; }
.faq-list details {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 22px;
}
.faq-list summary {
  cursor: pointer; font-weight: 600; font-family: var(--font-display); font-size: 1rem;
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 14px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; font-family: var(--font-mono); color: var(--cool-deep); font-size: 1.2rem; flex-shrink: 0; }
.faq-list details[open] summary::after { content: "−"; color: var(--warm-deep); }
.faq-list details p { margin-top: 12px; color: var(--muted); font-size: .93rem; }

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: rgba(255,255,255,.7); }
.footer-inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(40px, 5vw, 64px) var(--pad) 32px;
  display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 32px;
}
.footer .brand-name { color: #fff; }
.footer-brand p { font-size: .88rem; margin-top: 10px; max-width: 30ch; }
.footer-label { color: #7FC3E0; text-transform: uppercase; margin-bottom: 10px; }
.footer-col { display: flex; flex-direction: column; gap: 6px; font-size: .9rem; }
.footer-col a { text-decoration: none; }
.footer-col a:hover { color: #fff; }
.footer-legal {
  max-width: var(--maxw); margin: 0 auto; padding: 18px var(--pad) 28px;
  font-size: .76rem; color: rgba(255,255,255,.4);
  border-top: 1px solid rgba(255,255,255,.1);
}

/* ---------- Mobile call sticky ---------- */
.mobile-call {
  display: none;
  position: fixed; bottom: 16px; left: 16px; right: 16px; z-index: 90;
  background: var(--warm); color: #fff;
  padding: 15px; border-radius: 999px;
  font-weight: 700; font-size: 1.05rem; text-decoration: none;
  align-items: center; justify-content: center; gap: 10px;
  box-shadow: 0 10px 30px rgba(237,106,47,.4);
}

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* =====================================================
   Responsive
   ===================================================== */
@media (max-width: 1020px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .badge-rge { top: auto; bottom: -18px; right: 10px; }
  .aides-wrap, .zone-wrap, .contact-wrap, .urgence-inner { grid-template-columns: 1fr; }
  .urgence-cta { justify-self: start; }
  .simulateur { position: static; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .g-wide { grid-column: span 2; }
}

@media (max-width: 680px) {
  body { font-size: 15.5px; }
  .topnav { display: none; }
  .btn-call { margin-left: auto; font-size: .78rem; padding: 9px 14px; }
  .photo-chip { font-size: .68rem; padding: 6px 10px; }
  .services-grid, .avis-grid, .radio-cards, .field-row { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; }
  .g-wide { grid-column: span 1; }
  .gallery-item img { height: 230px; }
  .trustbar ul { grid-template-columns: 1fr 1fr; gap: 14px; }
  .mobile-call { display: flex; }
  .footer { padding-bottom: 76px; }
  .hero-toggle { flex-wrap: wrap; }
  .toggle-hint { width: 100%; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
  .zone-map iframe { height: 300px; }
}