/* ===== Design tokens ===== */
:root {
  --ink: #1c1a17;
  --ink-soft: #27231e;
  --limewash: #f2ede4;
  --limewash-dim: #e7e0d2;
  --terre: #b5583a;
  --terre-hi: #cf6b49;
  --pierre: #8a8578;
  --pierre-line: #d8d2c2;
  --ardoise: #445059;
  --ardoise-hi: #5a6b76;
  --or-brut: #c9a15a;
  --logo-plate: transparent;

  --fg: var(--ink);
  --bg: var(--limewash);
  --bg-raised: #ffffff;
  --line: var(--pierre-line);
  --muted: #6b6459;
  --accent: var(--terre);
  --accent-text: #96351a; /* darker terre — AA contrast for small text on light bg */
  --accent-contrast: #fff8f0;

  --display: "Oswald", "Arial Narrow", sans-serif;
  --body: "Work Sans", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;

  --measure: 62ch;
  --radius: 2px;
  --joint: 6px;
}

:root[data-theme="dark"] {
  --fg: var(--limewash);
  --bg: var(--ink);
  --bg-raised: var(--ink-soft);
  --line: #3a352d;
  --muted: #a99f8e;
  --accent: var(--terre-hi);
  --accent-text: var(--terre-hi);
  --accent-contrast: #1c1a17;
  --logo-plate: var(--limewash);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --fg: var(--limewash);
    --bg: var(--ink);
    --bg-raised: var(--ink-soft);
    --line: #3a352d;
    --muted: #a99f8e;
    --accent: var(--terre-hi);
    --accent-text: var(--terre-hi);
    --accent-contrast: #1c1a17;
    --logo-plate: var(--limewash);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
:where(section[id], [id]:target) { scroll-margin-top: calc(var(--header-h, 96px) + 12px); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 0.8em 1.2em;
  z-index: 1000;
  font-family: var(--body);
  font-weight: 600;
}
.skip-link:focus { left: 1rem; top: 1rem; }

a { color: inherit; }
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

h1, h2, h3, h4 {
  font-family: var(--display);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  font-weight: 600;
  text-wrap: balance;
  margin: 0;
}

p { margin: 0; max-width: var(--measure); }

.container {
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-text);
}

.joint {
  height: var(--joint);
  background: repeating-linear-gradient(
    -35deg,
    var(--accent) 0 14px,
    transparent 14px 28px
  );
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.2s ease;
}
.site-header.is-scrolled { box-shadow: 0 8px 24px -16px rgba(0,0,0,0.4); }

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  padding-block: 0.9rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--fg);
}
.brand-mark {
  font-family: var(--display);
  font-size: 1.5rem;
  letter-spacing: 0.03em;
  font-weight: 600;
}
.brand-mark span { color: var(--accent); }
.brand-logo {
  display: block;
  height: 88px;
  width: auto;
  background: var(--logo-plate);
  padding: 4px 8px;
  border-radius: var(--radius);
}
.brand-sub {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  display: none;
}
@media (min-width: 640px) { .brand-sub { display: inline; } }

.main-nav ul {
  list-style: none;
  display: flex;
  gap: clamp(0.75rem, 1.4vw, 1.5rem);
  margin: 0;
  padding: 0;
}
.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--fg);
  position: relative;
  padding-block: 0.25rem;
  white-space: nowrap;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  transition: right 0.2s ease;
}
.main-nav a:hover::after, .main-nav a:focus-visible::after { right: 0; }

.header-actions { display: flex; align-items: center; gap: 0.75rem; flex-shrink: 0; }

@media (max-width: 480px) {
  .header-actions { gap: 0.5rem; }
  .header-actions .btn-primary { padding: 0.55rem 0.75rem; font-size: 0.8rem; }
  .brand-logo { height: 68px; }
}

.phone-link {
  display: none;
  font-family: var(--mono);
  font-size: 0.92rem;
  text-decoration: none;
  font-variant-numeric: tabular-nums;
}
@media (min-width: 1180px) { .phone-link { display: inline-flex; align-items: center; gap: 0.4rem; white-space: nowrap; } }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--body);
  font-weight: 600;
  font-size: 0.88rem;
  text-decoration: none;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--accent-contrast); }
.btn-primary:hover { background: var(--terre-hi); }
.btn-ghost { border-color: var(--line); background: transparent; color: var(--fg); }
.btn-ghost:hover { border-color: var(--accent); }
.btn-block { width: 100%; justify-content: center; }

.nav-toggle {
  display: inline-flex;
  flex-shrink: 0;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
@media (min-width: 1180px) { .nav-toggle { display: none; } }
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background: var(--fg);
  position: relative;
}
.nav-toggle::before { transform: translateY(-6px); }
.nav-toggle::after { transform: translateY(4px); }

@media (max-width: 1179px) {
  .main-nav {
    position: fixed;
    inset: var(--header-h, 92px) 0 0 0;
    background: var(--bg);
    transform: translateY(-110%);
    visibility: hidden;
    transition: transform 0.25s ease, visibility 0.25s ease;
    padding: 2rem;
    overflow-y: auto;
  }
  .main-nav[data-open="true"] { transform: translateY(0); visibility: visible; }
  .main-nav ul { flex-direction: column; gap: 1.5rem; }
  .main-nav a { font-size: 1.3rem; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(100deg, rgba(28,26,23,0.96) 0%, rgba(28,26,23,0.94) 40%, rgba(28,26,23,0.62) 72%, rgba(28,26,23,0.38) 100%),
    url("img/hero-bg.jpg") center 20% / cover no-repeat,
    var(--ink);
  color: var(--limewash);
  padding-block: clamp(3.5rem, 9vw, 7rem) clamp(3rem, 7vw, 5rem);
}
.hero-grid {
  display: grid;
  gap: 3rem;
  grid-template-columns: 1fr;
}
@media (min-width: 960px) {
  .hero-grid { grid-template-columns: 1.15fr 0.85fr; align-items: end; }
}
.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  line-height: 1.02;
  color: var(--limewash);
}
.hero h1 em {
  font-style: normal;
  color: var(--terre-hi);
}
.hero-lede {
  margin-top: 1.4rem;
  font-size: 1.1rem;
  color: #d9d2c4;
  max-width: 42ch;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2.2rem; }
.hero .btn-ghost { border-color: #55503f; color: var(--limewash); }

.hero-spec {
  border: 1px solid #3f3a30;
  padding: 1.5rem;
  background: rgba(255,255,255,0.03);
}
.hero-spec dl { display: grid; grid-template-columns: auto 1fr; gap: 0.6rem 1rem; margin: 0; }
.hero-spec dt { font-family: var(--mono); font-size: 0.75rem; color: var(--or-brut); letter-spacing: 0.06em; align-self: center; }
.hero-spec dd { margin: 0; font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 0.95rem; }

.trust-strip {
  border-top: 1px solid #3f3a30;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.6rem;
}
.trust-strip span {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: #cfc7b6;
  text-transform: uppercase;
}
.trust-strip span::before { content: "▪ "; color: var(--terre-hi); }

/* ===== Section shells ===== */
section { padding-block: clamp(3rem, 7vw, 5.5rem); }
.section-band-alt { background: var(--bg-raised); border-block: 1px solid var(--line); }
.section-band-dark { background: var(--ink); color: var(--limewash); }
.section-head { max-width: 46ch; margin-bottom: 2.75rem; }
.section-head h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin-top: 0.5rem; }
.section-band-dark .section-head h2 { color: var(--limewash); }
.section-head p { margin-top: 0.9rem; color: var(--muted); }

/* ===== Services ===== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.service-card {
  background: var(--bg-raised);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.service-card .icon {
  width: 40px; height: 40px;
  color: var(--accent);
}
.service-card h3 { font-size: 1.05rem; letter-spacing: 0.01em; }
.service-card p { font-size: 0.92rem; color: var(--muted); }
.card-link {
  margin-top: auto;
  padding-top: 0.4rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  text-decoration: none;
  color: var(--accent-text);
  align-self: flex-start;
}
.card-link:hover { text-decoration: underline; }

/* ===== Timeline (chronological — order carries meaning) ===== */
.timeline { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--line); }
.timeline li {
  position: relative;
  padding: 0 0 2rem 1.75rem;
}
.timeline li::before {
  content: "";
  position: absolute;
  left: -6px; top: 0.35rem;
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
}
.timeline .yr {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  color: var(--accent-text);
  font-size: 0.95rem;
  display: block;
  margin-bottom: 0.25rem;
}
.timeline p { color: var(--fg); font-size: 0.95rem; }

.credentials {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 2rem;
}
.credential-logo { height: 34px; width: auto; }
.credential-logo-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 0.35rem 0.8rem 0.35rem 0.5rem;
  border-radius: var(--radius);
}
.credential-badge {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  border: 1px solid var(--or-brut);
  color: var(--accent-text);
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius);
}

.about-grid {
  display: grid;
  gap: 3rem;
  grid-template-columns: 1fr;
}
@media (min-width: 900px) { .about-grid { grid-template-columns: 0.9fr 1.1fr; } }

/* ===== Gallery / realisations ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
}
.gallery-card {
  border: 1px solid var(--line);
  background: var(--bg-raised);
  overflow: hidden;
}
.swatch {
  height: 190px;
  width: 100%;
  object-fit: cover;
  display: block;
}
.gallery-body { padding: 1.1rem 1.25rem 1.4rem; }
.gallery-body .eyebrow { display: block; margin-bottom: 0.35rem; }
.gallery-body h3 { font-size: 1rem; text-transform: none; letter-spacing: 0; font-family: var(--body); font-weight: 600; }
.gallery-body .loc { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); }

/* ===== Zone ===== */
.zone-layout { display: grid; gap: 2.5rem; grid-template-columns: 1fr; }
@media (min-width: 880px) { .zone-layout { grid-template-columns: 1fr 1fr; align-items: center; } }
.city-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(140px,1fr)); gap: 0.75rem 1rem; }
.city-list li {
  font-family: var(--mono);
  font-size: 0.92rem;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--line);
  background: var(--bg-raised);
}
.radius-graphic {
  width: min(320px, 100%);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 2px dashed var(--pierre);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
  margin-inline: auto;
}
.radius-graphic::before, .radius-graphic::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 2px dashed var(--pierre);
}
.radius-graphic::before { inset: 15%; }
.radius-graphic::after { inset: 32%; }
.radius-core {
  width: 14%;
  aspect-ratio: 1;
  background: var(--accent);
  border-radius: 50%;
  position: relative;
  z-index: 1;
}
.radius-core::after {
  content: "Haguenau";
  position: absolute;
  top: 130%;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 0.75rem;
  white-space: nowrap;
  color: var(--fg);
}

/* ===== CTA banner ===== */
.cta-banner {
  background: var(--accent);
  color: var(--accent-contrast);
  text-align: left;
}
.cta-banner .container {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}
.cta-banner h2 { font-size: clamp(1.4rem, 3vw, 2rem); color: inherit; }
.cta-banner .btn-primary { background: var(--ink); color: var(--limewash); }
.cta-banner .btn-primary:hover { background: var(--ink-soft); }

/* ===== Reviews note ===== */
.reviews-box {
  border: 1px solid var(--line);
  background: var(--bg-raised);
  padding: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}
.reviews-box p { color: var(--muted); }

/* ===== Contact ===== */
.contact-grid { display: grid; gap: 3rem; grid-template-columns: 1fr; }
@media (min-width: 920px) { .contact-grid { grid-template-columns: 0.85fr 1.15fr; } }

.info-list { list-style: none; margin: 2rem 0 0; padding: 0; display: flex; flex-direction: column; gap: 1.4rem; }
.info-list dt { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; color: var(--accent); text-transform: uppercase; }
.info-list dd { margin: 0.2rem 0 0; font-size: 1rem; }
.social-row { display: flex; gap: 0.9rem; margin-top: 1.8rem; }
.social-row a {
  border: 1px solid var(--line);
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  text-decoration: none;
}
.social-row a:hover { border-color: var(--accent); color: var(--accent); }

.form-grid { display: grid; gap: 1.1rem; grid-template-columns: 1fr 1fr; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 560px) { .form-grid { grid-template-columns: 1fr; } .form-grid .full { grid-column: auto; } }

.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field label { font-size: 0.82rem; font-weight: 600; }
.field input, .field select, .field textarea {
  font-family: var(--body);
  /* 16px minimum : en dessous, iOS Safari zoome automatiquement au focus. */
  font-size: 16px;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--fg);
  border-radius: var(--radius);
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); }
.field textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: 0.82rem; color: var(--muted); margin-top: 0.75rem; }
.form-status { margin-top: 1rem; font-size: 0.9rem; font-weight: 600; }
.form-status[data-state="ok"] { color: #3d6b42; }
.form-status[data-state="error"] { color: #a84a2d; }
/* En thème sombre, ces teintes doivent être éclaircies pour rester au-dessus
   du ratio de contraste AA (4.5:1) sur le fond --bg-raised sombre. */
:root[data-theme="dark"] .form-status[data-state="ok"] { color: #8fd39b; }
:root[data-theme="dark"] .form-status[data-state="error"] { color: #f0a58c; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .form-status[data-state="ok"] { color: #8fd39b; }
  :root:not([data-theme="light"]) .form-status[data-state="error"] { color: #f0a58c; }
}

/* ===== Footer ===== */
.site-footer {
  background: var(--ink);
  color: #cfc7b6;
  padding-block: 3rem 1.75rem;
}
.footer-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}
.footer-grid h4 { color: var(--limewash); font-size: 0.85rem; margin-bottom: 1rem; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-grid a { text-decoration: none; font-size: 0.9rem; color: #cfc7b6; }
.footer-grid a:hover { color: var(--terre-hi); }
.footer-bottom {
  border-top: 1px solid #3a352d;
  margin-top: 2.75rem;
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  font-size: 0.78rem;
  color: #948c7c;
}
.back-to-top {
  text-decoration: none;
  color: #cfc7b6;
  font-family: var(--mono);
  font-size: 0.78rem;
}

/* ===== FAQ ===== */
.faq-list { display: flex; flex-direction: column; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.faq-item { background: var(--bg-raised); }
.faq-item summary {
  padding: 1.1rem 1.4rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-family: var(--mono);
  color: var(--accent);
  font-size: 1.2rem;
  flex-shrink: 0;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item p {
  padding: 0 1.4rem 1.3rem;
  color: var(--muted);
  font-size: 0.94rem;
  max-width: 68ch;
}

/* ===== Legal / plain-text pages ===== */
.legal-content { max-width: 68ch; }
.legal-content h2 {
  text-transform: none;
  font-family: var(--body);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0;
  margin-top: 2.5rem;
}
.legal-content h2:first-child { margin-top: 0; }
.legal-content p, .legal-content li { color: var(--muted); font-size: 0.95rem; margin-top: 0.8rem; }
.legal-content ul { padding-left: 1.2rem; }

/* ===== Cookie banner ===== */
.cookie-banner {
  position: fixed;
  left: 1rem; right: 1rem; bottom: 1rem;
  z-index: 200;
  max-width: 640px;
  margin-inline: auto;
  background: var(--ink);
  color: var(--limewash);
  border: 1px solid #3f3a30;
  padding: 1.2rem 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 12px 32px -12px rgba(0,0,0,0.5);
}
.cookie-banner p { font-size: 0.85rem; color: #d9d2c4; flex: 1 1 320px; }
.cookie-banner p a { color: var(--terre-hi); text-decoration: underline; }
.cookie-banner .cookie-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.cookie-banner .btn-ghost { border-color: #55503f; color: var(--limewash); }

/* ===== Reveal on scroll (only hide when JS is active, so no-JS shows all) ===== */
html.js [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
html.js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ===== Breadcrumb (zone pages) ===== */
.breadcrumb {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  padding-block: 1rem;
  border-bottom: 1px solid var(--line);
}
.breadcrumb a { text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span[aria-hidden] { margin-inline: 0.4rem; color: var(--pierre); }

/* ===== Zone hub ===== */
.zone-band {
  margin-top: 3rem;
}
.zone-band h3 {
  font-size: 1.05rem;
  margin-bottom: 1rem;
  color: var(--accent);
}
.zone-town-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: 2.5rem;
}
.zone-town-card {
  background: var(--bg-raised);
  padding: 1.1rem 1.3rem;
  text-decoration: none;
  color: var(--fg);
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.zone-town-card:hover { background: var(--bg); }
.zone-town-card .town-name { font-weight: 600; }
.zone-town-card .town-dist { font-family: var(--mono); font-size: 0.78rem; color: var(--muted); }

/* ===== Compact page hero (zone pages) ===== */
.hero-compact {
  padding-block: clamp(2.5rem, 6vw, 4rem);
}
.hero-compact h1 { font-size: clamp(1.9rem, 4vw, 3rem); }