:root {
  --color-ink: oklch(20% 0.02 260);
  --color-charcoal: oklch(35% 0.02 260);
  --color-ash: oklch(55% 0.015 260);
  --color-mist: oklch(94% 0.01 160);
  --color-cream: oklch(98% 0.006 165);
  --color-sun: oklch(72% 0.13 165);
  --color-sun-deep: oklch(52% 0.13 150);
  --color-sky: oklch(24% 0.06 260);

  --font-sans: system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --radius: 10px;
  --max-width: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-cream);
  line-height: 1.6;
  font-size: 17px;
}

h1, h2, h3 {
  color: var(--color-ink);
  line-height: 1.2;
  margin: 0 0 var(--space-2);
}

h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.15rem; color: var(--color-charcoal); }

p { margin: 0 0 var(--space-2); color: var(--color-charcoal); }

a { color: inherit; }

ul, ol { padding-left: 1.25rem; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--color-cream);
  border-bottom: 1px solid var(--color-mist);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
}

.logo {
  font-weight: 700;
  font-size: 1.2rem;
  text-decoration: none;
  color: var(--color-sky);
  margin-right: auto;
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.site-header nav a {
  text-decoration: none;
  color: var(--color-charcoal);
  font-size: 0.95rem;
}

.site-header nav a:hover { color: var(--color-sky); }

@media (max-width: 720px) {
  .site-header nav { display: none; }
}

/* CTA buttons */
.cta {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius);
  background: var(--color-sun-deep);
  color: var(--color-cream);
  text-decoration: none;
  font-weight: 600;
  white-space: nowrap;
}

.cta:hover { background: var(--color-sky); }

.cta--ghost {
  background: transparent;
  color: var(--color-sky);
  border: 1.5px solid var(--color-sky);
}

.cta--ghost:hover {
  background: var(--color-sky);
  color: var(--color-cream);
}

.cta--header { padding: 0.55rem 1.1rem; font-size: 0.9rem; }

.cta--call {
  font-size: 1.05rem;
  padding: 0.9rem 1.8rem;
  box-shadow: 0 6px 18px oklch(52% 0.13 150 / 35%);
}

.hero .cta--ghost,
.contact .cta--ghost {
  color: var(--color-cream);
  border-color: oklch(92% 0.02 260);
}

.hero .cta--ghost:hover,
.contact .cta--ghost:hover {
  background: var(--color-cream);
  color: var(--color-sky);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 700px 500px at 88% -10%, var(--color-sun) 0%, transparent 60%),
    linear-gradient(160deg, var(--color-sky) 0%, oklch(14% 0.04 260) 100%);
  color: var(--color-cream);
  padding: var(--space-6) 0 var(--space-5);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.05;
  mix-blend-mode: overlay;
  pointer-events: none;
}

.hero .wrap { position: relative; z-index: 1; }

.hero h1 { color: var(--color-cream); }

.breadcrumb {
  font-size: 0.9rem;
  margin-bottom: var(--space-2);
}

.hero .breadcrumb {
  color: oklch(85% 0.02 260);
}

.hero .breadcrumb a {
  text-decoration: underline;
}

.hero-lead {
  max-width: 640px;
  color: oklch(92% 0.02 260);
  font-size: 1.1rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--space-5);
  align-items: start;
}

@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

.hero-card {
  background: var(--color-cream);
  color: var(--color-ink);
  border-radius: var(--radius);
  padding: var(--space-3);
  box-shadow: 0 20px 40px oklch(20% 0.02 260 / 25%);
}

.hero-card h2 {
  font-size: 1.3rem;
  margin-bottom: 0.4rem;
}

.hero-card > p {
  color: var(--color-charcoal);
  font-size: 0.95rem;
}

.hero-card-form {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.hero-card-form label {
  display: block;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 0.3rem;
  font-size: 0.9rem;
}

.hero-card-form input,
.hero-card-form select,
.hero-card-form textarea {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--color-mist);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--color-ink);
}

.hero-card-form .cta {
  justify-self: start;
  border: none;
  cursor: pointer;
}

.hero-card-form .cf-status {
  color: var(--color-charcoal);
  font-size: 0.8rem;
  margin: 0;
}

/* Trust strip */
.trust {
  background: var(--color-mist);
  padding: var(--space-2) 0;
}

.trust-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  padding: 0;
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-charcoal);
  font-weight: 600;
}

.trust-list li::before {
  content: "✓ ";
  color: var(--color-sun-deep);
}

/* Sections */
section { padding: var(--space-5) 0; }

.services { background: var(--color-cream); }

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.service-card {
  background: #fff;
  border: 1px solid var(--color-mist);
  border-top: 3px solid var(--color-sun-deep);
  border-radius: var(--radius);
  padding: var(--space-3);
}

.service-card img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: calc(var(--radius) - 4px);
  margin-bottom: var(--space-2);
}

.service-card-link {
  display: inline-block;
  margin-top: var(--space-1);
  font-weight: 600;
  color: var(--color-sun-deep);
  text-decoration: none;
}

.service-card-link:hover {
  text-decoration: underline;
}

.zone { background: var(--color-mist); }

.commune-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-1) var(--space-2);
  padding: 0;
  margin: var(--space-3) 0;
}

.commune-list li {
  font-weight: 600;
  display: flex;
}

.commune-list a {
  flex: 1;
  display: flex;
  align-items: center;
  background: #fff;
  border-radius: var(--radius);
  padding: 0.6rem 0.9rem;
  color: var(--color-sky);
  border: 1px solid var(--color-mist);
  text-decoration: none;
}

.commune-list a:hover {
  background: var(--color-mist);
  text-decoration: underline;
}

.subventions ul,
.amiante ul {
  list-style: none;
  padding: 0;
  margin: var(--space-3) 0;
  display: grid;
  gap: var(--space-2);
}

.subventions ul li {
  background: #fff;
  border-left: 4px solid var(--color-sun-deep);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: var(--space-2) var(--space-3);
}

.amiante ul li {
  background: var(--color-mist);
  border-left: 4px solid var(--color-sky);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: var(--space-2) var(--space-3);
}

.subventions a,
.amiante a,
.faq a {
  color: var(--color-sky);
  text-decoration: underline;
}

.amiante { background: #fff; }

.pricing { background: var(--color-cream); }

.pricing ul {
  list-style: none;
  padding: 0;
  margin: var(--space-3) 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-2);
}

.pricing ul li {
  background: #fff;
  border: 1px solid var(--color-mist);
  border-radius: var(--radius);
  padding: var(--space-2) var(--space-3);
  text-align: center;
}

.faq { background: var(--color-mist); }

.faq details {
  background: #fff;
  border: 1px solid var(--color-mist);
  border-radius: var(--radius);
  padding: var(--space-2) var(--space-3);
  margin-top: var(--space-2);
}

.faq summary {
  font-weight: 600;
  color: var(--color-ink);
  cursor: pointer;
}

.faq details p { margin-top: var(--space-2); margin-bottom: 0; }

.process-list {
  list-style: none;
  padding: 0;
  margin: var(--space-3) 0 0;
  counter-reset: step;
  display: grid;
  gap: var(--space-2);
}

.process-list li {
  counter-increment: step;
  position: relative;
  padding-left: 3rem;
}

.process-list li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  background: var(--color-sun-deep);
  color: var(--color-cream);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.contact {
  background: linear-gradient(160deg, var(--color-sky) 0%, oklch(14% 0.04 260) 100%);
  color: var(--color-cream);
  text-align: center;
}

.contact h2 { color: var(--color-cream); }
.contact p { color: oklch(92% 0.02 260); }
.contact .hero-actions { justify-content: center; }

/* Calculator */
.calculator-form {
  background: #fff;
  border: 1px solid var(--color-mist);
  border-radius: var(--radius);
  padding: var(--space-3);
  margin-top: var(--space-3);
  max-width: 560px;
}

.calculator-form label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.calculator-form output {
  color: var(--color-sun-deep);
}

.calculator-form input[type="range"] {
  width: 100%;
  margin-bottom: var(--space-3);
  accent-color: var(--color-sun-deep);
}

.calculator-form select {
  width: 100%;
  max-width: 260px;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--color-mist);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--color-ink);
  margin-bottom: var(--space-3);
}

.calculator-results {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-2);
}

.calc-result {
  background: var(--color-mist);
  border-radius: var(--radius);
  padding: var(--space-2);
  text-align: center;
}

.calc-label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-ash);
}

.calc-value {
  display: block;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-sky);
}

.calc-disclaimer {
  font-size: 0.8rem;
  color: var(--color-ash);
  margin: var(--space-3) 0 0;
}

/* Footer */
.site-footer {
  background: var(--color-ink);
  color: var(--color-ash);
  padding: var(--space-3) 0;
  font-size: 0.85rem;
}

.site-footer address { font-style: normal; }

.site-footer a {
  color: var(--color-ash);
}

.photo-credits {
  font-size: 0.75rem;
  opacity: 0.7;
}

/* CTA banner */
.cta-banner {
  background: var(--color-sun-deep);
  padding: var(--space-3) 0;
}

.cta-banner .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-2) var(--space-3);
}

.cta-banner p {
  color: var(--color-cream);
  font-weight: 600;
  margin: 0;
}

.cta-banner .cta--call {
  background: var(--color-cream);
  color: var(--color-sun-deep);
  box-shadow: none;
}

.cta-banner .cta--call:hover {
  background: var(--color-ink);
  color: var(--color-cream);
}

/* Emergency / urgence */
.emergency {
  background: var(--color-ink);
  color: var(--color-cream);
  text-align: center;
  padding: var(--space-4) 0;
}

.emergency h2 { color: var(--color-cream); }

.emergency p {
  color: oklch(85% 0.01 260);
  max-width: 640px;
  margin: 0 auto var(--space-3);
}

/* Legal pages */
.legal { background: var(--color-cream); }
.legal h2 { margin-top: var(--space-4); font-size: 1.2rem; }

/* Blog */
.blog-hero {
  background: linear-gradient(160deg, var(--color-sky) 0%, oklch(14% 0.03 260) 100%);
  color: var(--color-cream);
  padding: var(--space-5) 0 var(--space-4);
}

.blog-hero h1 { color: var(--color-cream); }

.blog-hero .breadcrumb { color: oklch(88% 0.01 260); }
.blog-hero .breadcrumb a { color: inherit; text-decoration: underline; }

.blog-lead {
  max-width: 640px;
  color: oklch(88% 0.01 260);
  font-size: 1.1rem;
}

.blog-list {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.blog-card {
  display: block;
  background: #fff;
  border: 1px solid var(--color-mist);
  border-radius: var(--radius);
  padding: var(--space-3);
  text-decoration: none;
  color: inherit;
}

.blog-card:hover { border-color: var(--color-sun); }

.blog-card .blog-card-topic {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-sun-deep);
  margin-bottom: 0.4rem;
}

.blog-card h3 { font-size: 1.3rem; margin-bottom: 0.3rem; color: var(--color-ink); }

.blog-card p { margin-bottom: 0; }

.blog-card .blog-card-meta {
  font-size: 0.82rem;
  color: var(--color-ash);
  margin-top: var(--space-2);
  margin-bottom: 0;
}

/* Article */
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  font-size: 0.85rem;
  color: oklch(88% 0.01 260);
  margin-top: var(--space-2);
}

.article-body { background: var(--color-cream); }

.article-image {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: var(--space-3);
}

.prose {
  max-width: 700px;
  font-size: 1.05rem;
}

.prose h2 {
  margin-top: var(--space-5);
  font-size: clamp(1.4rem, 2.6vw, 1.75rem);
}

.prose h2:first-child { margin-top: 0; }

.prose h3 {
  margin-top: var(--space-4);
  font-size: 1.2rem;
  color: var(--color-ink);
}

.prose p, .prose li { font-size: 1.05rem; }

.prose ul, .prose ol { margin: 0 0 var(--space-2); }

.prose li { margin-bottom: 0.4rem; }

.prose a { color: var(--color-sky); text-decoration: underline; }

.prose strong { color: var(--color-ink); }

.callout {
  background: #fff;
  border-left: 4px solid var(--color-sun-deep);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: var(--space-3);
  margin: var(--space-4) 0;
}

.callout p:last-child { margin-bottom: 0; }

.callout-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-sun-deep);
  margin-bottom: 0.4rem;
}

.article-cta {
  background: var(--color-mist);
  border-radius: var(--radius);
  padding: var(--space-3);
  margin: var(--space-4) 0;
  text-align: center;
}

.article-cta p { margin-bottom: var(--space-2); font-weight: 600; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-2);
  margin: var(--space-3) 0 var(--space-4);
}

.stat-card {
  background: #fff;
  border: 1px solid var(--color-mist);
  border-radius: var(--radius);
  padding: var(--space-2);
  text-align: center;
}

.stat-card .stat-value {
  display: block;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-sky);
}

.stat-card .stat-label {
  display: block;
  font-size: 0.82rem;
  color: var(--color-ash);
}

.related-articles {
  background: var(--color-mist);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-3);
}

/* Devis modal */
.devis-modal {
  border: none;
  border-radius: var(--radius);
  padding: var(--space-4);
  max-width: 480px;
  width: calc(100% - 2 * var(--space-3));
  color: var(--color-ink);
  box-shadow: 0 20px 60px oklch(20% 0.02 260 / 35%);
}

.devis-modal::backdrop {
  background: oklch(20% 0.02 260 / 55%);
}

.devis-modal h2 {
  font-size: 1.3rem;
  margin-bottom: 0.4rem;
}

.devis-modal > p {
  color: var(--color-charcoal);
  font-size: 0.95rem;
}

.devis-modal-close-form {
  display: flex;
  justify-content: flex-end;
  margin: calc(-1 * var(--space-2)) calc(-1 * var(--space-2)) 0 0;
}

.devis-modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-ash);
  cursor: pointer;
  padding: var(--space-1);
}

.devis-modal-close:hover { color: var(--color-ink); }

/* --- Finition premium : reset bouton, ombres, micro-interactions --- */
button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

.cta--header,
.hero-card-form .cta {
  box-shadow: 0 4px 14px rgba(0,0,0,0.14);
}

.cta { transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease; }

.cta--call:hover,
.cta--header:hover {
  transform: translateY(-2px);
}

.service-card {
  box-shadow: 0 2px 10px color-mix(in oklch, var(--color-sky) 10%, transparent);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px color-mix(in oklch, var(--color-sky) 22%, transparent);
}

.stat-card {
  background: linear-gradient(160deg, #fff 0%, var(--color-mist) 100%);
  box-shadow: 0 2px 8px color-mix(in oklch, var(--color-sky) 8%, transparent);
}

.article-image { box-shadow: 0 14px 32px color-mix(in oklch, var(--color-sky) 16%, transparent); }

.hero-card {
  position: relative;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: calc(var(--radius) + 3px);
  background: linear-gradient(160deg, var(--color-sun) 0%, var(--color-sun-deep) 100%);
  z-index: -1;
  opacity: 0.5;
  filter: blur(10px);
}

.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  transition: transform 0.15s ease;
}

.service-card-link:hover { transform: translateX(3px); }