:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --surface-2: #f8fbff;
  --text: #142335;
  --muted: #5b697d;
  --primary: #123f77;
  --primary-2: #0d2d56;
  --accent: #c79a57;
  --line: #dde5ef;
  --shadow: 0 16px 40px rgba(12, 44, 86, 0.10);
  --radius: 22px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(18,63,119,0.07), transparent 28%),
    linear-gradient(180deg, #fbfcfe 0%, var(--bg) 100%);
  line-height: 1.65;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: none; }
img { max-width: 100%; display: block; }
.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--primary-2);
  color: #fff;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  z-index: 100;
}
.skip-link:focus { top: 1rem; }
.container { width: min(calc(100% - 2rem), var(--max)); margin: 0 auto; }
.section { padding: 5rem 0; }
.section-sm { padding: 3.5rem 0; }
.section-title {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}
.section-intro { max-width: 760px; color: var(--muted); margin: 0 0 2rem; }
.eyebrow {
  display: inline-block;
  margin-bottom: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  font-weight: 800;
  font-size: 0.78rem;
  color: var(--primary);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.95rem 1.35rem;
  border-radius: 999px;
  border: 2px solid var(--primary);
  font-weight: 700;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(18,63,119,0.14); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-2); }
.btn-secondary { background: transparent; color: var(--primary); }
.btn-secondary:hover { background: rgba(18,63,119,0.06); }
.btn-light { background: #fff; color: var(--primary); border-color: #fff; }
.btn-light:hover { background: rgba(255,255,255,0.92); }
.topbar {
  background: var(--primary-2);
  color: #fff;
  font-size: 0.95rem;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.65rem 0;
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.topbar a { color: #fff; font-weight: 600; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(18,63,119,0.08);
}
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  padding: 1rem 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--text);
}
.brand img { width: 64px; }
.brand-text strong {
  display: block;
  font-size: 1.15rem;
  line-height: 1.1;
}
.brand-text span {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.15rem;
}
.nav-links a { color: var(--text); font-weight: 600; }
.nav-links a.active { color: var(--primary); }
.nav-cta {
  background: var(--primary);
  color: #fff !important;
  border-radius: 999px;
  padding: 0.8rem 1rem;
}
.mobile-menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  padding: 0.85rem 1rem;
  border-radius: 14px;
  font-weight: 700;
}
.hero {
  position: relative;
  overflow: hidden;
  padding: 5.5rem 0 4.5rem;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(18,63,119,0.04), rgba(199,154,87,0.06));
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2rem;
  align-items: center;
}
.hero-copy h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.7rem, 6vw, 4.9rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}
.hero-copy p {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.08rem;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 1.8rem 0 1.3rem;
}
.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.hero-points span,
.tag {
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  background: rgba(18,63,119,0.08);
  color: var(--primary-2);
  font-weight: 700;
  font-size: 0.92rem;
}
.hero-panel,
.card,
.panel,
.service-card,
.gallery-item,
.faq-item,
.contact-card,
.form-panel,
.stat,
.review,
.notice,
.area-card,
.process-step {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-panel {
  padding: 1.3rem;
}
.hero-image {
  position: relative;
  min-height: 580px;
  border-radius: 28px;
  overflow: hidden;
  background:
    linear-gradient(rgba(10,29,56,0.25), rgba(10,29,56,0.12)),
    linear-gradient(135deg, #dfe8f1, #f9fbfd);
}
.hero-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.15) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.15) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.25;
}
.hero-roof {
  position: absolute;
  inset: auto 0 0 0;
  height: 58%;
  background: linear-gradient(180deg, rgba(18,63,119,0.15), rgba(18,63,119,0.55));
  clip-path: polygon(0 100%, 0 48%, 28% 30%, 50% 6%, 71% 28%, 100% 42%, 100% 100%);
}
.hero-badge {
  position: absolute;
  top: 1.2rem;
  left: 1.2rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,255,255,0.92);
  color: var(--primary-2);
  border-radius: 999px;
  padding: 0.65rem 0.9rem;
  font-weight: 800;
}
.hero-overlay {
  position: absolute;
  left: 1.2rem;
  right: 1.2rem;
  bottom: 1.2rem;
  display: grid;
  gap: 1rem;
}
.hero-logo-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(255,255,255,0.94);
  border-radius: 24px;
  padding: 1rem;
  border: 1px solid rgba(255,255,255,0.7);
}
.hero-logo-card img { width: 88px; border-radius: 14px; background: #fff; padding: 0.35rem; }
.hero-logo-card strong { display: block; font-size: 1.2rem; }
.hero-logo-card span { color: var(--muted); }
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.stat { padding: 1rem; background: rgba(255,255,255,0.94); text-align: center; }
.stat strong { display: block; color: var(--primary); font-size: 1.65rem; line-height: 1.1; }
.stat span { color: var(--muted); font-size: 0.95rem; }
.grid-3, .grid-2, .services-grid, .gallery-grid, .faq-grid, .contact-grid, .areas-grid, .steps-grid, .reviews-grid {
  display: grid;
  gap: 1.2rem;
}
.grid-3, .services-grid, .gallery-grid, .faq-grid, .areas-grid, .steps-grid { grid-template-columns: repeat(3, 1fr); }
.grid-2, .contact-grid, .reviews-grid { grid-template-columns: repeat(2, 1fr); }
.card, .service-card, .gallery-item, .faq-item, .contact-card, .form-panel, .panel, .review, .notice, .area-card, .process-step { padding: 1.5rem; }
.card h3, .service-card h3, .gallery-item h3, .faq-item h3, .contact-card h3, .form-panel h3, .review h3, .area-card h3, .process-step h3 {
  margin-top: 0;
}
.card h2,
.service-card h2,
.contact-card h2,
.form-panel h2,
.panel h2,
.highlight-box h2,
.timeline-step h2,
.cta-strip h2,
.footer h2 {
  margin-top: 0;
}
.icon-badge,
.service-icon,
.step-number {
  width: 54px;
  height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: rgba(18,63,119,0.08);
  color: var(--primary);
  font-weight: 800;
  font-size: 1.35rem;
  margin-bottom: 1rem;
}
.check-list,
.clean-list,
.contact-list,
.footer-links {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}
.check-list li,
.clean-list li,
.contact-list li,
.footer-links li {
  position: relative;
  padding-left: 1.45rem;
  margin-bottom: 0.75rem;
  color: var(--muted);
}
.check-list li::before,
.clean-list li::before,
.contact-list li::before,
.footer-links li::before {
  content: "•";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 800;
}
.band {
  background: linear-gradient(180deg, rgba(18,63,119,0.04), rgba(18,63,119,0.01));
  border-top: 1px solid rgba(18,63,119,0.05);
  border-bottom: 1px solid rgba(18,63,119,0.05);
}
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
}
.highlight-box {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  padding: 1.8rem;
  border-radius: 26px;
  box-shadow: var(--shadow);
}
.highlight-box h3,
.highlight-box h2 { margin-top: 0; }
.highlight-box p, .highlight-box li, .highlight-box a { color: rgba(255,255,255,0.92); }
.highlight-box .check-list li::before { color: #fff; }
.gallery-thumb {
  aspect-ratio: 4 / 3;
  border-radius: 18px;
  overflow: hidden;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #cad8e8, #f8fbfd);
  position: relative;
}
.gallery-thumb::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18,63,119,0.10), rgba(18,63,119,0.18));
}
.gallery-label {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  z-index: 1;
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
}
.gallery-roof {
  position: absolute;
  inset: auto 0 0 0;
  height: 55%;
  background: linear-gradient(180deg, rgba(18,63,119,0.15), rgba(18,63,119,0.7));
  clip-path: polygon(0 100%, 0 56%, 22% 44%, 35% 30%, 50% 16%, 65% 30%, 82% 44%, 100% 56%, 100% 100%);
}
.process-step { position: relative; }
.step-number {
  font-size: 1rem;
  width: 44px;
  height: 44px;
  border-radius: 12px;
}
.contact-card strong,
.review strong { color: var(--primary); }
.notice {
  background: var(--surface-2);
}
.notice h2,
.notice h3 { margin-top: 0; }
.cta-strip {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  border-radius: 30px;
  padding: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow);
}
.cta-strip h2 { margin: 0 0 0.5rem; }
.cta-strip p { margin: 0; color: rgba(255,255,255,0.90); }
.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.8);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.10);
  color: #fff;
}
form { display: grid; gap: 1rem; }
label { font-weight: 700; font-size: 0.96rem; }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.95rem 1rem;
  font: inherit;
  color: var(--text);
  background: #fff;
}
input:focus, textarea:focus, select:focus {
  outline: 2px solid rgba(18,63,119,0.16);
  border-color: var(--primary);
}
textarea { min-height: 170px; resize: vertical; }
.footer {
  background: #0f1d2e;
  color: rgba(255,255,255,0.85);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 1.5rem;
}
.footer a { color: #fff; }
.footer h2 {
  font-size: 1.05rem;
  margin-bottom: 0.9rem;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 1rem;
}
.footer-brand img { width: 64px; background: #fff; border-radius: 12px; padding: 0.25rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-top: 2rem;
  padding-top: 1.2rem;
  font-size: 0.94rem;
  color: rgba(255,255,255,0.74);
}
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.page-hero {
  padding: 4.5rem 0 3rem;
  background: linear-gradient(180deg, rgba(18,63,119,0.05), rgba(18,63,119,0.01));
}
.page-hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.3rem, 5vw, 4rem);
  line-height: 1;
}
.breadcrumb { color: var(--muted); font-size: 0.95rem; margin-bottom: 1rem; }
.breadcrumb a { color: var(--primary); }
.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.success-panel {
  padding: 2rem;
  text-align: center;
}
.legal-panel h2 + p,
.legal-panel p + h2 {
  margin-top: 1.5rem;
}
.sticky-cta {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 70;
  display: flex;
  gap: 0.75rem;
}
.sticky-cta a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 110px;
  padding: 0.95rem 1.2rem;
  border-radius: 999px;
  font-weight: 800;
  box-shadow: 0 16px 30px rgba(10, 29, 56, 0.2);
}
.sticky-cta__call {
  background: var(--primary);
  color: #fff;
}
.sticky-cta__quote {
  background: #fff;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.photo-card figcaption strong,
.masonry-item figcaption strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--primary-2);
}
@media (max-width: 980px) {
  .hero-grid,
  .split,
  .grid-2,
  .grid-3,
  .services-grid,
  .gallery-grid,
  .faq-grid,
  .contact-grid,
  .areas-grid,
  .steps-grid,
  .reviews-grid,
  .footer-grid { grid-template-columns: 1fr; }
  .hero-image { min-height: 440px; }
  .cta-strip {
    flex-direction: column;
    align-items: flex-start;
  }
  .nav-links {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(100% + 0.75rem);
    display: none;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 1rem;
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .mobile-menu-toggle { display: inline-flex; }
}
@media (max-width: 640px) {
  .topbar .container { font-size: 0.88rem; }
  .section { padding: 4rem 0; }
  .hero { padding: 4.2rem 0 3.5rem; }
  .hero-copy h1 { font-size: clamp(2.2rem, 12vw, 3.4rem); }
  .hero-stats { grid-template-columns: 1fr; }
  .brand-text span { display: none; }
  .topbar-actions { gap: 0.35rem 0.85rem; }
  .sticky-cta {
    left: 0.75rem;
    right: 0.75rem;
    bottom: 0.75rem;
  }
  .sticky-cta a {
    flex: 1;
    min-width: 0;
  }
}


.hero-image.hero-real {
  background:
    linear-gradient(180deg, rgba(10,29,56,0.12), rgba(10,29,56,0.42)),
    url('../img/chantiers/hero-couverture.webp') center/cover no-repeat;
}
.hero-image.hero-real::before {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(18,63,119,0.10));
  opacity: 1;
}
.hero-image.hero-real .hero-roof { display: none; }
.story-grid,
.photo-strip,
.masonry-grid,
.gallery-showcase,
.image-text-grid {
  display: grid;
  gap: 1.2rem;
}
.story-grid { grid-template-columns: 1.1fr 0.9fr; align-items: stretch; }
.photo-strip { grid-template-columns: repeat(3, 1fr); }
.gallery-showcase { grid-template-columns: 1.2fr 0.8fr; }
.image-text-grid { grid-template-columns: 0.95fr 1.05fr; align-items: center; }
.masonry-grid { grid-template-columns: repeat(3, 1fr); align-items: start; }
.photo-card,
.photo-panel,
.masonry-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.photo-card img,
.photo-panel img,
.masonry-item img { width: 100%; height: 100%; object-fit: cover; }
.photo-card figure,
.photo-panel figure,
.masonry-item figure { margin: 0; }
.photo-card figcaption,
.masonry-item figcaption {
  padding: 1rem 1.1rem 1.2rem;
  color: var(--muted);
  font-size: 0.96rem;
}
.photo-card--tall img { aspect-ratio: 4 / 5; }
.photo-card--wide img,
.photo-panel img { aspect-ratio: 16 / 9; }
.masonry-item img { aspect-ratio: 4 / 3; }
.masonry-item.tall img { aspect-ratio: 4 / 5; }
.note-box {
  background: rgba(18,63,119,0.05);
  border-left: 4px solid var(--accent);
  padding: 1rem 1.1rem;
  border-radius: 14px;
}
.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.2rem;
}
.metric {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1rem;
  text-align: center;
}
.metric strong { display:block; color: var(--primary); font-size:1.3rem; }
.mosaic-badge {
  position: absolute;
  right: 1rem;
  top: 1rem;
  background: rgba(255,255,255,0.94);
  color: var(--primary-2);
  padding: 0.65rem 0.9rem;
  border-radius: 999px;
  font-weight: 800;
}
.photo-panel { position: relative; }
.photo-panel .panel-copy {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  background: rgba(255,255,255,0.94);
  border-radius: 18px;
  padding: 1rem;
}
.mini-gallery {
  display:grid;
  grid-template-columns: repeat(2,1fr);
  gap:1rem;
}
.mini-gallery .photo-card img { aspect-ratio: 1 / 1; }
@media (max-width: 980px) {
  .story-grid,
  .photo-strip,
  .masonry-grid,
  .gallery-showcase,
  .image-text-grid,
  .metric-row,
  .mini-gallery { grid-template-columns: 1fr; }
}



/* V4 photos réelles */
.hero-photo-card {
  display: grid;
  gap: 1rem;
}
.hero-image.hero-image--photo {
  min-height: auto;
  background: #eef3f7;
  padding: 0;
  border-radius: 28px;
  overflow: hidden;
}
.hero-image.hero-image--photo::before { display: none; }
.hero-image.hero-image--photo img {
  display: block;
  width: 100%;
  height: auto;
}
.hero-image.hero-image--photo .hero-badge {
  top: 1rem;
  left: 1rem;
  box-shadow: 0 12px 30px rgba(11,27,46,0.18);
}
.hero-caption-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(247,249,252,0.96));
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 1.2rem;
  box-shadow: var(--shadow);
}
.hero-caption-card strong {
  display: block;
  font-size: 1.15rem;
  margin-bottom: 0.45rem;
  color: var(--primary-2);
}
.hero-caption-card p {
  margin: 0;
  color: var(--muted);
}
.photo-card figure,
.masonry-item figure {
  margin: 0;
}
.photo-card img,
.photo-panel img,
.masonry-item img {
  display: block;
  width: 100%;
  height: auto;
}
.kevin-highlight {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 1.2rem;
  align-items: center;
}
.kevin-bio-box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.kevin-bio-box h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.timeline-step {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.timeline-step img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
}
.timeline-step .step-copy {
  padding: 1rem;
}
.timeline-step strong {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--primary-2);
}
@media (max-width: 980px) {
  .kevin-highlight,
  .timeline-grid {
    grid-template-columns: 1fr;
  }
  .timeline-step img {
    height: auto;
    object-fit: initial;
  }
}