/* TETRA Génie Civil — design system */
:root {
  --color-bg: #f4f6f8;
  --color-surface: #ffffff;
  --color-text: #1a2332;
  --color-text-muted: #5c6b7a;
  --color-primary: #0d3d5c;
  --color-primary-light: #145a7a;
  --color-accent: #e8a317;
  --color-accent-hover: #cf8f0f;
  --color-border: #dde3ea;
  --color-hero-overlay: rgba(13, 61, 92, 0.82);
  --font-sans: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --font-display: "Source Serif 4", Georgia, "Times New Roman", serif;
  --shadow-sm: 0 1px 3px rgba(26, 35, 50, 0.08);
  --shadow-md: 0 8px 30px rgba(26, 35, 50, 0.1);
  --shadow-lg: 0 20px 50px rgba(26, 35, 50, 0.12);
  --radius: 10px;
  --radius-lg: 16px;
  --header-h: 76px;
  --max-w: 1140px;
  --transition: 0.22s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-primary-light);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-primary);
}

h1 { font-size: clamp(2.25rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.25rem); margin: 0 0 1rem; }
h3 { font-size: 1.35rem; margin: 0 0 0.5rem; }

p { margin: 0 0 1rem; }

ul {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
}

.container {
  width: min(100% - 2rem, var(--max-w));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  overflow: visible;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1.5rem;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--color-primary);
}

.logo-link img {
  height: 48px;
  width: auto;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1.15;
}

.logo-text span {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

.site-nav > ul {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  display: block;
  padding: 0.5rem 0.85rem;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text);
  border-radius: 6px;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--color-primary);
  background: rgba(13, 61, 92, 0.06);
}

.nav-item-has-sub {
  position: relative;
}

.nav-item-has-sub > button {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.85rem;
  font: inherit;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text);
  background: none;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.nav-item-has-sub > button:hover,
.nav-item-has-sub.open > button {
  color: var(--color-primary);
  background: rgba(13, 61, 92, 0.06);
}

.nav-item-has-sub > button svg {
  width: 12px;
  height: 12px;
  transition: transform var(--transition);
}

.nav-item-has-sub.open > button svg {
  transform: rotate(180deg);
}

.subnav {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.125rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Desktop : menu déroulant (haut → bas) */
@media (min-width: 901px) {
  .subnav {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 0.35rem;
    min-width: 240px;
    padding: 0.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    z-index: 110;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform-origin: top center;
    transform: translateY(0) scaleY(0.92);
    transition:
      opacity var(--transition),
      transform 0.2s ease,
      visibility var(--transition);
  }

  .nav-item-has-sub.open .subnav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0) scaleY(1);
  }
}

.subnav a {
  font-size: 0.9rem;
  padding: 0.45rem 0.75rem;
}

/* Hero */
.hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--color-primary) center / cover no-repeat;
  background-image: image-set(
    url("../assets/images/bg.webp") type("image/webp"),
    url("../assets/images/bg.jpg") type("image/jpeg")
  );
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--color-hero-overlay);
}

.hero .container {
  position: relative;
  z-index: 1;
  padding-block: 4rem;
}

.hero-tag {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--color-accent);
  color: var(--color-primary);
  border-radius: 4px;
}

.hero h1 {
  color: #fff;
  max-width: 22ch;
  margin-bottom: 1rem;
}

.hero-lead {
  font-size: 1.2rem;
  max-width: 36rem;
  opacity: 0.92;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-primary);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: #fff;
}

.btn-secondary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: #fff;
}

/* Sections */
.section {
  padding-block: 4.5rem;
}

.section-alt {
  background: var(--color-surface);
}

.section-header {
  text-align: center;
  max-width: 40rem;
  margin: 0 auto 3rem;
}

.section-header p {
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* Cards grid */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(13, 61, 92, 0.08);
  border-radius: 10px;
  color: var(--color-primary);
}

.card h3 a {
  text-decoration: none;
  color: inherit;
}

.card h3 a:hover {
  color: var(--color-primary-light);
}

.card p:last-child {
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Alert / banner */
.banner {
  padding: 1.25rem 1.5rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
}

.banner strong {
  color: var(--color-accent);
}

.banner a {
  color: var(--color-accent);
}

/* Team */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.team-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.team-card .role {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}

.team-card h3 {
  margin-bottom: 0.5rem;
}

.team-card .title {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.team-card.featured {
  grid-column: 1 / -1;
}

.team-card .bio {
  margin-top: 1rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.team-card .bio p {
  margin-bottom: 0.85rem;
}

.team-card .bio p:last-child {
  margin-bottom: 0;
}

.team-card .bio-title {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.35rem;
}

.team-section-label {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary-light);
  margin: 0 0 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.page-hero-actions {
  margin-top: 1.5rem;
}

.page-hero .btn-primary {
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

/* Modal organigramme */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal[hidden] {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(13, 61, 92, 0.65);
  cursor: pointer;
}

.modal-panel {
  position: relative;
  z-index: 1;
  width: min(100%, 1100px);
  max-height: calc(100vh - 2rem);
  overflow: auto;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 1.5rem;
}

.modal-panel h2 {
  margin: 0 2rem 1rem 0;
  font-size: 1.5rem;
}

.modal-panel img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.modal-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  border-radius: 8px;
  background: var(--color-bg);
  color: var(--color-primary);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: background var(--transition);
}

.modal-close:hover {
  background: var(--color-border);
}

body.modal-open {
  overflow: hidden;
}

/* Clientèle — pour qui ? quand ? */
.intro-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem;
  margin-bottom: 2.5rem;
  max-width: 52rem;
}

.intro-panel p {
  margin: 0;
  font-size: 1.05rem;
}

.client-flow {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 52rem;
  position: relative;
  padding-left: 1.25rem;
}

.client-flow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 3px;
  background: var(--color-border);
  border-radius: 2px;
}

.client-step {
  position: relative;
  padding: 0 0 2rem 1.75rem;
}

.client-step:last-child {
  padding-bottom: 0;
}

.client-step::before {
  content: "";
  position: absolute;
  left: -1.35rem;
  top: 1.1rem;
  width: 12px;
  height: 12px;
  background: var(--color-accent);
  border: 3px solid var(--color-surface);
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--color-primary-light);
  transform: translateX(-50%);
}

.client-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: linear-gradient(135deg, #3d8b5c 0%, #2d6b47 100%);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.client-badge svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.client-step-body {
  background: #eef2f5;
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

.client-step-body p {
  margin: 0;
  color: var(--color-text);
}

.client-step--general .client-step-body {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.client-step--general ul {
  margin: 0;
  padding-left: 1.2rem;
}

.client-step--general li {
  margin-bottom: 0.35rem;
}

.client-step--general li:last-child {
  margin-bottom: 0;
}

/* Types d'ouvrages */
.ouvrage-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.ouvrage-row {
  display: grid;
  gap: 1rem;
  align-items: stretch;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

@media (min-width: 768px) {
  .ouvrage-row {
    grid-template-columns: 1fr 1fr;
  }

  .ouvrage-row--reverse .ouvrage-icons {
    order: 2;
  }

  .ouvrage-row--reverse .ouvrage-content {
    order: 1;
  }
}

.ouvrage-content {
  padding: 1.5rem 1.75rem;
  background: linear-gradient(135deg, #e8f4ec 0%, #dceee3 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.ouvrage-content h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.ouvrage-content ul {
  margin: 0;
  padding-left: 1.15rem;
}

.ouvrage-content li {
  margin-bottom: 0.3rem;
}

.ouvrage-icons {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  padding: 1.5rem;
  align-content: center;
  justify-items: center;
  background: var(--color-bg);
}

.ouvrage-icons svg {
  width: 56px;
  height: 56px;
  color: var(--color-primary);
  opacity: 0.85;
}

/* Carte Google Maps */
.map-wrap {
  margin-top: 1.5rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.map-wrap iframe {
  display: block;
  width: 100%;
  height: 220px;
  border: 0;
}

@media (min-width: 768px) {
  .map-wrap iframe {
    height: 260px;
  }
}

.contact-layout {
  display: grid;
  gap: 2rem;
}

@media (min-width: 900px) {
  .contact-layout {
    grid-template-columns: 1fr 1fr;
  }

  .contact-layout .form-card {
    grid-row: span 2;
  }
}

/* Galerie par catégories */
.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.gallery-filter {
  padding: 0.5rem 1rem;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  cursor: pointer;
  transition: var(--transition);
}

.gallery-filter:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
}

.gallery-filter.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.gallery-item {
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.gallery-item.is-hidden {
  display: none;
}

.gallery-item figcaption {
  padding: 0.65rem 0.85rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.gallery-item {
  aspect-ratio: auto;
}

.gallery-item img {
  aspect-ratio: 4/3;
}

.gallery-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--color-text-muted);
  display: none;
  margin-top: 1rem;
}

.gallery-empty.is-visible {
  display: block;
}

/* Page header (inner pages) */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #0a2d42 100%);
  color: #fff;
  padding-block: 3.5rem 3rem;
}

.page-hero h1 {
  color: #fff;
  margin-bottom: 0.5rem;
}

.page-hero .breadcrumb {
  font-size: 0.9rem;
  opacity: 0.75;
  margin: 0;
}

.page-hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
}

.page-hero .breadcrumb a:hover {
  color: var(--color-accent);
}

/* Content prose */
.prose {
  max-width: 42rem;
}

.prose-wide {
  max-width: none;
}

.prose h2 {
  margin-top: 2.5rem;
}

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

/* Two column layout */
.split {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .split {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

/* Contact */
.contact-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1.1fr;
  }
}

.contact-info {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.contact-info h3 {
  margin-top: 1.5rem;
}

.contact-info h3:first-child {
  margin-top: 0;
}

.contact-info address {
  font-style: normal;
  line-height: 1.7;
}

.contact-info a[href^="tel"] {
  font-size: 1.25rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--color-primary);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.form-group .required {
  color: #c0392b;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  font: inherit;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(20, 90, 122, 0.15);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.gallery-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  aspect-ratio: 4/3;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.gallery-item:hover img {
  transform: scale(1.04);
}

/* BIM feature list */
.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem;
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
}

.feature-list a {
  display: block;
  padding: 0.85rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  color: var(--color-text);
  transition: var(--transition);
}

.feature-list a:hover {
  border-color: var(--color-primary-light);
  background: rgba(13, 61, 92, 0.04);
  color: var(--color-primary);
}

/* Footer */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.85);
  padding-block: 3rem 1.5rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
  }
}

.site-footer h4 {
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
}

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

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer li {
  margin-bottom: 0.4rem;
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.85rem;
  text-align: center;
  opacity: 0.7;
}

.footer-trust {
  font-size: 0.9rem;
  margin-top: 0.75rem;
}

.footer-trust a {
  color: rgba(255, 255, 255, 0.9);
}

.footer-phone-note {
  font-size: 0.8rem;
  opacity: 0.75;
}

.footer-legal {
  margin-top: 0.5rem;
}

.footer-legal a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 0.75rem 1rem;
  background: var(--color-accent);
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* CTA strip */
.cta-strip {
  background: linear-gradient(135deg, var(--color-primary) 0%, #0a2d42 100%);
  color: #fff;
  padding-block: 3rem;
}

.cta-strip-inner {
  display: grid;
  gap: 1.5rem;
  align-items: center;
}

@media (min-width: 768px) {
  .cta-strip-inner {
    grid-template-columns: 1fr auto;
  }
}

.cta-strip h2 {
  color: #fff;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  margin: 0 0 0.5rem;
}

.cta-strip p {
  margin: 0;
  opacity: 0.9;
  max-width: 36rem;
}

.cta-strip-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-outline-dark {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.55);
}

.btn-outline-dark:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: #fff;
}

/* Trust / réassurance */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.trust-item {
  padding: 1rem 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  text-align: center;
}

.trust-item strong {
  display: block;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

/* Zone d'intervention */
.zone-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}

.zone-list li {
  padding: 0.4rem 0.85rem;
  background: rgba(13, 61, 92, 0.08);
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-primary);
}

/* Études de cas */
.case-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.case-card {
  display: grid;
  gap: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.case-card img {
  aspect-ratio: 16/10;
  object-fit: cover;
  width: 100%;
}

.case-card-body {
  padding: 1.25rem 1.5rem;
}

.case-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}

.case-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.case-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary-light);
  margin-bottom: 0.35rem;
}

/* FAQ */
.faq-list {
  max-width: 44rem;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  background: var(--color-surface);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  font: inherit;
  font-weight: 600;
  text-align: left;
  color: var(--color-primary);
  background: none;
  border: none;
  cursor: pointer;
}

.faq-question::after {
  content: "+";
  font-size: 1.25rem;
  line-height: 1;
  color: var(--color-accent);
  flex-shrink: 0;
}

.faq-item.is-open .faq-question::after {
  content: "−";
}

.faq-answer {
  padding: 0 1.25rem 1rem;
  color: var(--color-text-muted);
}

.faq-answer p {
  margin: 0 0 0.75rem;
}

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

.faq-preview-link {
  text-align: center;
  margin-top: 2rem;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 300;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -8px 30px rgba(26, 35, 50, 0.12);
  padding-block: 1rem;
}

.cookie-banner-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.cookie-banner p {
  margin: 0;
  font-size: 0.9rem;
  flex: 1;
  min-width: 200px;
}

.cookie-banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Contact success */
.form-success-banner {
  background: #e8f4ec;
  border: 1px solid #b8dcc4;
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}

.form-success-banner p {
  margin: 0;
}

/* Organigramme texte */
.organigram-text {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--color-bg);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.organigram-text ul {
  margin: 0.5rem 0 0;
}

.map-placeholder {
  padding: 2rem;
  text-align: center;
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Legal prose */
.legal-prose h2 {
  margin-top: 2rem;
}

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

/* Mobile nav */
@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    background: var(--color-surface);
    padding: 1.5rem;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition);
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .site-nav > ul {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-item-has-sub .subnav {
    display: none;
    padding: 0.25rem 0 0.5rem 1rem;
    border-left: 2px solid var(--color-border);
    margin-top: 0.25rem;
  }

  .nav-item-has-sub.open .subnav {
    display: flex;
    flex-direction: column;
  }
}

body.nav-open {
  overflow: hidden;
}

/* Bandeau préproduction */
.dev-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  padding: 0.55rem 1rem;
  background: #fff3cd;
  border-bottom: 1px solid var(--color-accent);
  font-size: 0.85rem;
  color: #5c4a12;
  z-index: 120;
  position: relative;
}

.dev-banner-text {
  flex: 1;
  min-width: 12rem;
}

.dev-banner .dev-note {
  margin: 0;
}

/* Notes développeur (placeholders contenu) */
.dev-note {
  position: relative;
  display: inline-flex;
  vertical-align: middle;
  margin-left: 0.35rem;
  flex-shrink: 0;
  z-index: 20;
}

.dev-note-badge {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 0.2rem 0.5rem;
  line-height: 1.2;
  color: #7a4f00;
  background: #fff8e6;
  border: 1px dashed var(--color-accent);
  border-radius: 4px;
  cursor: help;
  white-space: nowrap;
  user-select: none;
}

.dev-note-bubble {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  width: max(16rem, 220px);
  max-width: min(320px, 90vw);
  padding: 0.65rem 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 400;
  line-height: 1.45;
  text-align: left;
  color: #fff;
  background: #243447;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.18s ease, visibility 0.18s ease, transform 0.18s ease;
}

.dev-note-bubble::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -6px;
  border: 6px solid transparent;
  border-top-color: #243447;
}

.dev-note-bubble strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--color-accent);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.dev-note:hover .dev-note-bubble,
.dev-note:focus .dev-note-bubble,
.dev-note:focus-within .dev-note-bubble {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-2px);
}

.dev-note-host-corner {
  position: relative;
}

.dev-note-host-corner > .dev-note {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  margin: 0;
  z-index: 6;
}

.dev-note-host-inline > .dev-note {
  margin-top: 0.35rem;
  margin-left: 0;
  display: inline-flex;
}

.dev-note-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
  margin-bottom: 1.25rem;
  padding: 0.65rem 1rem;
  background: #fff8e6;
  border: 1px dashed var(--color-accent);
  border-radius: var(--radius);
}

.dev-note-strip .dev-note {
  margin: 0;
}

.dev-note-strip-hint {
  font-size: 0.85rem;
  color: #7a4f00;
  flex: 1;
  min-width: 12rem;
}

.dev-note-host-strip {
  position: relative;
}

p.dev-note-host-inline,
.em-dev-wrap {
  display: block;
}

.trust-item.dev-note-host-corner,
.case-card.dev-note-host-corner,
.team-card.dev-note-host-corner {
  padding-top: 2rem;
}

@media (max-width: 600px) {
  .dev-note-bubble {
    left: auto;
    right: 0;
    transform: none;
  }

  .dev-note:hover .dev-note-bubble,
  .dev-note:focus .dev-note-bubble,
  .dev-note:focus-within .dev-note-bubble {
    transform: translateY(-2px);
  }

  .dev-note-bubble::after {
    left: auto;
    right: 1rem;
    margin-left: 0;
  }
}