:root {
  --fdn-dark: #001128;
  --fdn-panel: #002355;
  --fdn-blue: #75a8da;
  --fdn-light-blue: #a9cdeb;
  --fdn-white: #fff;
  --fdn-black: #101112;
  --fdn-muted: #747e8b;
  --fdn-border: #d8dfe6;
  --fdn-soft: #f5f7f9;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: #111;
  background: var(--fdn-white);
  font-family: "PT Sans", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.55;
}
img { max-width: 100%; height: auto; }
a { color: var(--fdn-blue); text-decoration: none; }
a:hover { color: var(--fdn-panel); text-decoration: underline; }
p { margin-bottom: 14px; }
p strong { color: var(--fdn-dark); }
h1, h2, h3, h4 { line-height: 1.2; text-transform: none; }
h1 {
  margin-bottom: 1rem;
  color: var(--fdn-panel);
  font-size: 36px;
  font-weight: 700;
}
h2 {
  margin-bottom: .8rem;
  color: var(--fdn-panel);
  font-size: 27px;
  font-weight: 700;
}
h3 {
  color: var(--fdn-dark);
  font-size: 20px;
  font-weight: 700;
}
h4 { color: var(--fdn-dark); font-size: 17px; font-weight: 700; }
.container { width: 100%; max-width: 1500px; }
.narrow { max-width: 1100px; }
.lead { font-size: 1.2rem; line-height: 1.55; }
.skip-link {
  position: fixed;
  top: -80px;
  left: 1rem;
  z-index: 9999;
  padding: .75rem 1rem;
  color: var(--fdn-dark);
  background: var(--fdn-white);
}
.skip-link:focus { top: 1rem; }

.btn {
  border-radius: 6px;
  font-weight: 700;
  text-transform: none;
}
.btn-primary {
  color: var(--fdn-white);
  background: var(--fdn-panel);
  border-color: var(--fdn-panel);
}
.btn-primary:hover,
.btn-primary:focus {
  color: var(--fdn-white);
  background: var(--fdn-dark);
  border-color: var(--fdn-dark);
  text-decoration: none;
}
.btn-outline-primary {
  color: var(--fdn-dark);
  border-color: var(--fdn-blue);
}
.btn-outline-primary:hover {
  color: var(--fdn-white);
  background: var(--fdn-blue);
  border-color: var(--fdn-blue);
  text-decoration: none;
}
.btn-light { color: var(--fdn-dark); background: var(--fdn-white); border-color: var(--fdn-white); }
.btn-lg { padding: .65rem 1rem; font-size: 17px; }
.btn-sm { padding: .38rem .7rem; }
.eyebrow {
  display: block;
  margin-bottom: .35rem;
  color: var(--fdn-blue);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}
.text-link { font-weight: 700; }

/* En-tête construit sur la même logique qu’Édition Livre France. */
.fdn-topbar {
  color: var(--fdn-white);
  background: var(--fdn-dark);
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.fdn-topbar .container,
.fdn-subbar .container { max-width: 1750px; }
.fdn-topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 82px;
  padding: 8px 0;
}
.fdn-logo { display: inline-flex; align-items: center; }
.fdn-logo img { display: block; width: auto; height: 62px; }
.fdn-actions { display: flex; align-items: center; gap: 12px; }
.fdn-action {
  min-width: 175px;
  padding: 8px 10px;
  color: var(--fdn-white);
  border: 1px solid transparent;
  border-radius: 8px;
  line-height: 1.05;
}
.fdn-action:hover {
  color: var(--fdn-white);
  border-color: rgba(255,255,255,.35);
  text-decoration: none;
}
.fdn-action-top { display: block; font-size: 12px; opacity: .85; }
.fdn-action-bottom { display: block; font-size: 14px; font-weight: 700; }
.fdn-action-primary { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.2); }
.fdn-subbar { background: var(--fdn-panel); }
.fdn-navbar { min-height: 43px; padding: 4px 0; }
.fdn-nav { display: flex; width: 100%; gap: 12px; align-items: center; }
.fdn-nav .nav-link {
  padding: 4px 8px;
  color: var(--fdn-white);
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}
.fdn-nav .nav-link:hover {
  color: var(--fdn-white);
  border-color: rgba(255,255,255,.55);
  text-decoration: none;
}
.fdn-nav .nav-link.active {
  color: var(--fdn-white);
  font-weight: 700;
  text-decoration: underline;
  pointer-events: none;
}
.fdn-nav-cta { margin-left: auto; background: rgba(255,255,255,.06); }
.fdn-burger {
  margin: 3px 0;
  background: var(--fdn-white);
  border: 1px solid rgba(255,255,255,.3);
}

.fdn-intro-list { margin: 1rem 0 1.25rem; padding-left: 1.2rem; }
.fdn-main-photo,
.fdn-content-photo { width: 100%; object-fit: cover; border: 1px solid var(--fdn-border); }
.fdn-main-photo { max-height: 390px; }
.fdn-content-photo { max-height: 480px; }

.fdn-card {
  overflow: hidden;
  background: var(--fdn-soft);
  border: 1px solid var(--fdn-border);
  border-radius: 10px;
}
.fdn-card img { display: block; width: 100%; height: 165px; object-fit: cover; }
.fdn-card-body { padding: 16px; }
.fdn-card h3 { margin-bottom: .6rem; font-size: 20px; }
.fdn-card p { min-height: 48px; font-size: 14px; }
.fdn-project img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--fdn-border);
  border-radius: 8px;
}
.fdn-project h3 { margin: 8px 0 2px; font-size: 15px; }
.fdn-project p { color: var(--fdn-muted); font-size: 12px; line-height: 1.3; }
.fdn-info-box {
  height: 100%;
  padding: 24px;
  background: var(--fdn-soft);
  border: 1px solid var(--fdn-border);
  border-radius: 10px;
}
.fdn-pub .container {
  padding: 16px 20px;
  background: var(--fdn-soft);
  border: 1px solid var(--fdn-border);
  border-radius: 10px;
}
.fdn-pub strong { display: block; color: var(--fdn-dark); font-size: 18px; }
.fdn-pub span { color: var(--fdn-muted); }
.fdn-disclaimer,
.publication { color: var(--fdn-muted); font-size: 11px; }

/* Les anciens grands bandeaux deviennent de simples introductions ELF. */
.page-hero,
.hero,
.local-hero {
  padding: 48px 0 20px;
  color: #111;
  background: var(--fdn-white);
}
.page-hero > .container.narrow,
.local-hero > .container.narrow {
  max-width: 1500px;
}
.page-hero h1,
.hero h1,
.local-hero h1 {
  max-width: 1050px;
  margin: 0 0 1rem;
  color: var(--fdn-panel);
  font-size: 38px;
}
.page-hero p,
.hero p,
.local-hero p {
  max-width: 1000px;
  color: #222;
  font-size: 18px;
}
.page-hero .eyebrow,
.hero .eyebrow,
.local-hero .eyebrow { color: var(--fdn-blue); }
.page-hero--service { padding-bottom: 40px; }
.error-page { min-height: 45vh; }
.section { padding: 28px 0; }
.section-soft { background: var(--fdn-soft); border-top: 1px solid var(--fdn-border); border-bottom: 1px solid var(--fdn-border); }
.section-dark { color: #111; background: var(--fdn-soft); }
.section-dark h2,
.section-dark h3 { color: var(--fdn-dark); }
.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 20px;
}
.section-heading h2 { margin-bottom: 0; }
.section-heading > p { max-width: 520px; margin-bottom: 0; color: var(--fdn-muted); }

.service-detail-list { border-top: 1px solid var(--fdn-border); }
.service-row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 330px;
  gap: 24px;
  align-items: center;
  padding: 26px 0;
  border-bottom: 1px solid var(--fdn-border);
}
.service-row__number { color: var(--fdn-light-blue); font-size: 28px; font-weight: 700; }
.service-row h2 { margin: .2rem 0 .5rem; font-size: 25px; }
.service-row img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  border: 1px solid var(--fdn-border);
  border-radius: 8px;
}
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 0;
  list-style: none;
}
.tag-list li {
  padding: 3px 7px;
  color: var(--fdn-dark);
  background: var(--fdn-soft);
  border: 1px solid var(--fdn-border);
  border-radius: 4px;
  font-size: 12px;
}
.service-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 40px;
  align-items: center;
}
.service-hero-grid img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border: 1px solid var(--fdn-border);
  border-radius: 8px;
}
.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 40px;
  align-items: start;
}
.prose { font-size: 16px; }
.prose h2 { margin-top: 2rem; font-size: 25px; }
.prose h2:first-of-type { margin-top: 0; }
.prose blockquote {
  margin: 1.5rem 0;
  padding: 14px 18px;
  color: var(--fdn-dark);
  background: var(--fdn-soft);
  border-left: 4px solid var(--fdn-blue);
  font-size: 18px;
  font-weight: 700;
}
.deliverable-card {
  padding: 20px;
  background: var(--fdn-soft);
  border: 1px solid var(--fdn-border);
  border-radius: 10px;
}
.deliverable-card ul { padding-left: 1.2rem; }
.deliverable-card li { margin-bottom: .5rem; }
.step-grid,
.value-grid,
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.step-grid > div,
.value-grid > div,
.timeline > div {
  padding: 18px;
  background: var(--fdn-white);
  border: 1px solid var(--fdn-border);
  border-radius: 8px;
}
.step-grid strong,
.value-grid span,
.timeline strong { color: var(--fdn-panel); font-size: 20px; }

.split-feature {
  display: grid;
  grid-template-columns: 42% 1fr;
  gap: 40px;
  align-items: center;
}
.feature-image img {
  display: block;
  width: 100%;
  max-height: 520px;
  object-fit: cover;
  border: 1px solid var(--fdn-border);
  border-radius: 8px;
}
.process-list { padding-left: 0; list-style: none; }
.process-list li {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 10px;
  padding: 9px 0;
  border-top: 1px solid var(--fdn-border);
}
.process-list li > span { color: var(--fdn-panel); font-weight: 700; }
.process-list p { margin-bottom: 0; }

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.project-card {
  overflow: hidden;
  background: var(--fdn-white);
  border: 1px solid var(--fdn-border);
  border-radius: 8px;
}
.project-card img { display: block; width: 100%; height: 220px; object-fit: cover; }
.project-card > div { position: relative; padding: 14px; }
.project-card span { color: var(--fdn-blue); font-size: 12px; }
.project-card h2,
.project-card h3 { margin: 4px 45px 0 0; font-size: 18px; }
.project-card small { position: absolute; top: 14px; right: 14px; color: var(--fdn-muted); }
.portfolio-note { margin-top: 16px; color: var(--fdn-muted); font-size: 12px; }

.location-panel {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 30px;
  align-items: center;
  padding: 24px;
  background: var(--fdn-white);
  border: 1px solid var(--fdn-border);
  border-radius: 10px;
}
.location-map {
  display: grid;
  place-items: center;
  width: 190px;
  aspect-ratio: 1;
  margin: auto;
  color: var(--fdn-white);
  background: var(--fdn-blue);
  border-radius: 50%;
  font-size: 40px;
  font-weight: 700;
}
.local-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 14px;
  color: var(--fdn-muted);
  font-size: 13px;
}
.city-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding: 0;
  list-style: none;
}
.city-grid a {
  display: block;
  padding: 8px 10px;
  background: var(--fdn-white);
  border: 1px solid var(--fdn-border);
  border-radius: 5px;
}

.fdn-accordion { border-top: 1px solid var(--fdn-border); }
.fdn-accordion .accordion-item { border: 0; border-bottom: 1px solid var(--fdn-border); }
.fdn-accordion .accordion-button {
  padding: 14px 4px;
  color: var(--fdn-dark);
  background: var(--fdn-white);
  box-shadow: none;
  font-size: 16px;
  font-weight: 700;
}
.fdn-accordion .accordion-button:not(.collapsed) { color: var(--fdn-panel); }
.fdn-accordion .accordion-body { padding: 0 4px 14px; color: #333; }

.closing-cta {
  margin: 28px auto;
  padding: 0 12px;
  color: #111;
  text-align: left;
  background: transparent;
}
.closing-cta .container {
  padding: 24px;
  background: var(--fdn-soft);
  border: 1px solid var(--fdn-border);
  border-radius: 10px;
}
.closing-cta h2 {
  max-width: none;
  margin: .3rem 0 1rem;
  color: var(--fdn-panel);
  font-size: 27px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 38% 1fr;
  gap: 40px;
  align-items: start;
}
.contact-grid h2 { font-size: 27px; }
.contact-details div { padding: 10px 0; border-top: 1px solid var(--fdn-border); }
.contact-details dt { color: var(--fdn-muted); font-size: 12px; text-transform: uppercase; }
.contact-details dd { margin-bottom: 0; }
.form-card {
  padding: 22px;
  background: var(--fdn-soft);
  border: 1px solid var(--fdn-border);
  border-radius: 10px;
}
.form-control,
.form-select {
  min-height: 45px;
  color: #111;
  background: var(--fdn-white);
  border: 1px solid #bdc8d2;
  border-radius: 5px;
}
textarea.form-control { min-height: 170px; }
.form-control:focus,
.form-select:focus { border-color: var(--fdn-blue); box-shadow: 0 0 0 .15rem rgba(117,168,218,.18); }
.form-label { font-weight: 700; }
.form-note { margin-top: 8px; color: var(--fdn-muted); font-size: 12px; }

.fdn-footer {
  color: var(--fdn-white);
  background: var(--fdn-panel);
}
.fdn-footer h2 { color: var(--fdn-white); }
.fdn-footer p strong { color: var(--fdn-light-blue); }
.fdn-footer a { color: var(--fdn-white); }
.fdn-footer a:hover { color: var(--fdn-light-blue); }
.fdn-footer li { margin-bottom: 4px; }
.fdn-copyright {
  color: var(--fdn-white);
  background: var(--fdn-dark);
  font-size: 12px;
}
.fdn-copyright strong { color: var(--fdn-light-blue); }

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.article-card {
  height: 100%;
  padding: 18px;
  background: var(--fdn-white);
  border: 1px solid var(--fdn-border);
  border-radius: 8px;
}
.article-card h2,
.article-card h3 {
  margin: 5px 0 8px;
  color: var(--fdn-panel);
  font-size: 19px;
}
.article-card h2 a,
.article-card h3 a { color: inherit; }
.article-card p {
  margin-bottom: 0;
  color: #333;
}
.article-meta {
  display: block;
  color: var(--fdn-blue);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}
.article-body {
  max-width: 920px;
}
.article-body > :first-child { margin-top: 0; }
.article-body a { font-weight: 700; }
.article-aside h2 { font-size: 22px; }
.pagination-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 24px;
  color: var(--fdn-muted);
  font-weight: 700;
}
.pagination-nav a,
.pagination-nav span {
  padding: 8px 12px;
  background: var(--fdn-white);
  border: 1px solid var(--fdn-border);
  border-radius: 6px;
}
.local-link-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  padding: 0;
  list-style: none;
}
.local-link-grid a {
  display: block;
  min-height: 42px;
  padding: 9px 11px;
  color: var(--fdn-dark);
  background: var(--fdn-white);
  border: 1px solid var(--fdn-border);
  border-radius: 6px;
  font-weight: 700;
}
.local-link-grid a:hover {
  color: var(--fdn-panel);
  border-color: var(--fdn-blue);
  text-decoration: none;
}
.service-link-grid .article-card { background: var(--fdn-white); }
@media (max-width: 991px) {
  .fdn-topbar-inner { min-height: 72px; }
  .fdn-logo img { height: 50px; }
  .fdn-action { min-width: 0; }
  .fdn-action-top { display: none; }
  .fdn-nav { gap: 0; padding: 8px 0; }
  .fdn-nav .nav-link { margin-bottom: 6px; }
  .fdn-nav-cta { margin-left: 0; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 10px; }
  .service-row { grid-template-columns: 42px 1fr; }
  .service-row img { grid-column: 2; }
  .service-hero-grid,
  .content-grid,
  .split-feature,
  .contact-grid,
  .location-panel { grid-template-columns: 1fr; }
  .article-grid,
  .local-link-grid,
  .step-grid,
  .value-grid,
  .timeline { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  body { font-size: 14px; }
  h1,
  .page-hero h1,
  .hero h1,
  .local-hero h1 { font-size: 29px; }
  h2,
  .closing-cta h2 { font-size: 23px; }
  .fdn-topbar-inner { gap: 8px; }
  .fdn-logo img { height: 40px; max-width: 170px; object-fit: contain; }
  .fdn-actions .fdn-action:first-child { display: none; }
  .fdn-action { padding: 7px; text-align: center; }
  .fdn-action-bottom { font-size: 12px; }
  .page-hero,
  .hero,
  .local-hero { padding-top: 34px; }
  .project-grid,
  .article-grid,
  .local-link-grid { grid-template-columns: repeat(2, 1fr); }
  .project-card img { height: 160px; }
  .city-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .fdn-logo img { max-width: 145px; }
  .project-grid,
  .article-grid,
  .local-link-grid,
  .step-grid,
  .value-grid,
  .timeline { grid-template-columns: 1fr; }
  .city-grid,
  .article-grid,
  .local-link-grid { grid-template-columns: 1fr; }
}

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