/* ============================================
   Bâtir Rhône-Alpes — Template Référence BTP
   Design: Robuste, industriel, professionnel
   Couleurs: Charbon (#1E1E2A) + Jaune chantier (#E8A824)
   Fonts: Outfit (display) + Inter (body)
   ============================================ */

:root {
  /* Couleurs principales */
  --c-primary: #1E1E2A;
  --c-primary-light: #2C2C3D;
  --c-primary-dark: #14141D;
  --c-accent: #E8A824;
  --c-accent-light: #FFF8E7;
  --c-accent-dark: #C78E1A;
  --c-accent-glow: rgba(232, 168, 36, 0.15);

  /* Neutres */
  --c-bg: #F8F8F6;
  --c-surface: #FFFFFF;
  --c-surface-warm: #F2F1ED;
  --c-text: #1A1A1E;
  --c-text-soft: #55555E;
  --c-text-muted: #8E8E96;
  --c-text-on-dark: #EEEEE8;
  --c-border: #E2E2DD;
  --c-border-light: #EDEDE8;

  /* Steel dark (pour les sections sombres secondaires) */
  --c-steel: #2A2D3A;
  --c-steel-light: #35394A;

  /* Fonts */
  --f-display: 'Outfit', -apple-system, sans-serif;
  --f-body: 'Inter', -apple-system, sans-serif;

  /* Spacing */
  --s-section: clamp(4.5rem, 9vw, 7.5rem);
  --s-gap: clamp(1.5rem, 3vw, 2.5rem);

  /* Radius */
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 20px;
  --r-xl: 28px;

  /* Ombres */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.05);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.06);
  --shadow-accent: 0 8px 30px rgba(232, 168, 36, 0.2);

  /* Transitions */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---- RESET ---- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--f-body);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ---- UTILITAIRES ---- */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2rem);
}
.section {
  padding: var(--s-section) 0;
}
.section--dark {
  background: var(--c-primary);
  color: var(--c-text-on-dark);
}
.section--steel {
  background: var(--c-steel);
  color: var(--c-text-on-dark);
}
.section--warm {
  background: var(--c-surface-warm);
}
.section--cta {
  background: var(--c-primary);
  color: var(--c-text-on-dark);
  padding: clamp(3rem, 6vw, 5rem) 0;
}
.text-center { text-align: center; }
.text--light { color: var(--c-text-on-dark); opacity: 0.85; line-height: 1.7; }

/* ---- TYPOGRAPHIE ---- */
.heading-lg {
  font-family: var(--f-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--c-text);
}
.heading-lg strong {
  color: var(--c-accent);
}
.heading--light {
  color: var(--c-text-on-dark);
}
.heading--light strong {
  color: var(--c-accent);
}
.heading-md {
  font-family: var(--f-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

/* Section header */
.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto clamp(2.5rem, 5vw, 4rem);
}
.section-header__desc {
  color: var(--c-text-soft);
  margin-top: 1rem;
  font-size: 1.05rem;
  line-height: 1.7;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--f-display);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-accent-dark);
  background: var(--c-accent-light);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 1rem;
}
.section-tag--light {
  background: rgba(232, 168, 36, 0.15);
  color: var(--c-accent);
}

/* ---- NAVIGATION ---- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.nav--scrolled {
  background: rgba(30, 30, 42, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.2);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2rem);
  height: 72px;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  text-decoration: none;
}
.nav__logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--c-accent);
  color: var(--c-primary-dark);
  font-family: var(--f-display);
  font-weight: 800;
  font-size: 1rem;
  border-radius: var(--r-sm);
}
.nav__logo-text {
  font-family: var(--f-display);
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.02em;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav__links a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0; right: 0;
  height: 2px;
  background: var(--c-accent);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease);
}
.nav__links a:hover,
.nav__links a.is-active {
  color: #fff;
}
.nav__links a.is-active::after,
.nav__links a:hover::after {
  transform: scaleX(1);
}
.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--c-accent);
  color: var(--c-primary-dark);
  font-family: var(--f-display);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--r-sm);
  transition: background 0.2s, transform 0.2s;
}
.nav__cta:hover {
  background: var(--c-accent-dark);
  transform: translateY(-1px);
}
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  cursor: pointer;
}
.nav__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.2s;
}
.nav__toggle.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle.is-active span:nth-child(2) {
  opacity: 0;
}
.nav__toggle.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.nav__mobile {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  position: fixed;
  inset: 0;
  background: var(--c-primary);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
}
.nav__mobile.is-open {
  opacity: 1;
  pointer-events: auto;
}
.nav__mobile a {
  color: #fff;
  font-family: var(--f-display);
  font-size: 1.3rem;
  font-weight: 600;
}
.nav__mobile a.is-active {
  color: var(--c-accent);
}
.nav__mobile-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--c-accent);
  color: var(--c-primary-dark) !important;
  padding: 12px 24px;
  border-radius: var(--r-sm);
  margin-top: 1rem;
}

/* ---- BOUTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: var(--r-sm);
  transition: all 0.25s var(--ease);
  cursor: pointer;
  border: none;
}
.btn--accent {
  background: var(--c-accent);
  color: var(--c-primary-dark);
}
.btn--accent:hover {
  background: var(--c-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}
.btn--ghost {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.3);
}
.btn--ghost:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.05);
}
.btn--outline {
  background: transparent;
  color: var(--c-primary);
  border: 1.5px solid var(--c-border);
}
.btn--outline:hover {
  border-color: var(--c-accent);
  color: var(--c-accent-dark);
  transform: translateY(-2px);
}
.btn--dark {
  background: var(--c-primary);
  color: #fff;
}
.btn--dark:hover {
  background: var(--c-primary-light);
  transform: translateY(-2px);
}

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: url('https://images.unsplash.com/photo-1504307651254-35680f356dfd?w=1920&q=80') center/cover no-repeat;
  background-color: var(--c-primary);
  color: #fff;
  overflow: hidden;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(20, 20, 29, 0.55) 0%, rgba(20, 20, 29, 0.75) 100%),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 80px,
      rgba(255,255,255,0.015) 80px,
      rgba(255,255,255,0.015) 81px
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 80px,
      rgba(255,255,255,0.015) 80px,
      rgba(255,255,255,0.015) 81px
    );
}
.hero__content {
  position: relative;
  z-index: 1;
  padding: clamp(6rem, 12vh, 9rem) 0 clamp(3rem, 6vh, 5rem);
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(232, 168, 36, 0.12);
  color: var(--c-accent);
  font-family: var(--f-display);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(232, 168, 36, 0.2);
}
.hero__title {
  font-family: var(--f-display);
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  max-width: 860px;
  margin-bottom: 1.25rem;
}
.hero__title strong {
  color: var(--c-accent);
}
.hero__desc {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.7;
  color: rgba(255,255,255,0.7);
  max-width: 780px;
  margin-bottom: 2rem;
}
.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero__metrics {
  display: flex;
  gap: clamp(2rem, 4vw, 3.5rem);
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.hero__metric strong {
  display: block;
  font-family: var(--f-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--c-accent);
}
.hero__metric span {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  margin-top: 2px;
}

/* ---- PAGE HERO (pages intérieures) ---- */
.page-hero {
  background: var(--c-primary);
  color: #fff;
  padding: clamp(7rem, 14vh, 10rem) 0 clamp(3rem, 6vh, 4rem);
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 80px,
    rgba(255,255,255,0.015) 80px,
    rgba(255,255,255,0.015) 81px
  );
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero__breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 1rem;
}
.page-hero__breadcrumb a {
  color: rgba(255,255,255,0.5);
  transition: color 0.2s;
}
.page-hero__breadcrumb a:hover { color: var(--c-accent); }
.page-hero__breadcrumb span { color: rgba(255,255,255,0.3); }
.page-hero__title {
  font-family: var(--f-display);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.page-hero__title strong { color: var(--c-accent); }
.page-hero__desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.65);
  max-width: 780px;
  margin-top: 1rem;
  line-height: 1.7;
}

/* ---- SERVICE CARDS (accueil) ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--s-gap);
}
.service-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: clamp(1.5rem, 3vw, 2rem);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--c-accent-light);
}
.service-card:hover::before {
  transform: scaleX(1);
}
.service-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}
.service-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-accent-light);
  color: var(--c-accent-dark);
  border-radius: var(--r-sm);
}
.service-card__number {
  font-family: var(--f-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--c-border);
}
.service-card__title {
  font-family: var(--f-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}
.service-card__desc {
  font-size: 0.92rem;
  color: var(--c-text-soft);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}
.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-accent-dark);
  transition: gap 0.2s var(--ease);
}
.service-card__link:hover {
  gap: 10px;
}

/* ---- MÉTIERS DÉTAIL (page nos-metiers) ---- */
.metier-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
  padding: clamp(2rem, 4vw, 3.5rem) 0;
}
.metier-block:not(:last-child) {
  border-bottom: 1px solid var(--c-border);
}
.metier-block:nth-child(even) {
  direction: rtl;
}
.metier-block:nth-child(even) > * {
  direction: ltr;
}
.metier-block__img {
  border-radius: var(--r-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--c-surface-warm);
}
.metier-block__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.metier-block__number {
  font-family: var(--f-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--c-accent-light);
  margin-bottom: 0.5rem;
}
.metier-block__title {
  font-family: var(--f-display);
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.metier-block__desc {
  color: var(--c-text-soft);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.metier-block__list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.metier-block__list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.92rem;
  color: var(--c-text-soft);
}
.metier-block__list li i {
  color: var(--c-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ---- CHIFFRES-CLÉS ---- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--r-md);
  overflow: hidden;
}
.stat-item {
  text-align: center;
  padding: clamp(1.5rem, 3vw, 2.5rem) 1rem;
  background: var(--c-primary-light);
}
.stat-item__number {
  font-family: var(--f-display);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--c-accent);
}
.stat-item__label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-top: 0.25rem;
}

/* ---- POURQUOI NOUS ---- */
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 5vw, 5rem);
  align-items: start;
}
.why-content {
  position: sticky;
  top: 120px;
}
.why-content p { margin-top: 1rem; }
.why-cards {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.why-card {
  display: flex;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  border-radius: var(--r-md);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  transition: background 0.2s;
}
.why-card:hover {
  background: rgba(255,255,255,0.08);
}
.why-card i {
  color: var(--c-accent);
  flex-shrink: 0;
  margin-top: 2px;
}
.why-card h3 {
  font-family: var(--f-display);
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.35rem;
}
.why-card p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}

/* ---- PROJETS / RÉALISATIONS ---- */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-gap);
}
.project-card {
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.project-card--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
}
.project-card__img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
  background: var(--c-surface-warm);
}
.project-card--featured .project-card__img {
  aspect-ratio: auto;
  min-height: 300px;
}
.project-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.project-card:hover .project-card__img img {
  transform: scale(1.04);
}
.project-card__tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--c-accent);
  color: var(--c-primary-dark);
  font-family: var(--f-display);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 100px;
}
.project-card__body {
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
}
.project-card__title {
  font-family: var(--f-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.project-card__desc {
  font-size: 0.9rem;
  color: var(--c-text-soft);
  line-height: 1.6;
}
.project-card__meta {
  display: flex;
  gap: 1.5rem;
  margin-top: 1rem;
  font-size: 0.82rem;
  color: var(--c-text-muted);
}
.project-card__meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Gallery filters */
.gallery__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2rem;
}
.gallery__filter {
  font-family: var(--f-display);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: 100px;
  border: 1px solid var(--c-border);
  background: var(--c-surface);
  color: var(--c-text-soft);
  cursor: pointer;
  transition: all 0.2s;
}
.gallery__filter.is-active,
.gallery__filter:hover {
  background: var(--c-accent);
  color: var(--c-primary-dark);
  border-color: var(--c-accent);
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--s-gap);
}
.gallery-item {
  transition: opacity 0.4s ease, transform 0.4s ease;
}

/* ---- TÉMOIGNAGES ---- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--s-gap);
}
.review-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--r-md);
  padding: clamp(1.5rem, 3vw, 2rem);
}
.review-card__stars {
  color: var(--c-accent);
  font-size: 1rem;
  letter-spacing: 2px;
  margin-bottom: 0.75rem;
}
.review-card__text {
  font-size: 0.92rem;
  line-height: 1.65;
  color: rgba(255,255,255,0.75);
  font-style: italic;
  margin-bottom: 1rem;
}
.review-card__author strong {
  display: block;
  color: #fff;
  font-size: 0.9rem;
}
.review-card__author span {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
}

/* ---- CTA BLOCK ---- */
.cta-block {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}
.cta-block__content p {
  color: rgba(255,255,255,0.7);
  margin-top: 1rem;
  max-width: 480px;
  line-height: 1.7;
}
.cta-block__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}
.cta-block__certifs {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.certif-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: var(--r-sm);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.8);
  font-family: var(--f-display);
  font-size: 0.85rem;
  font-weight: 500;
}
.certif-badge i { color: var(--c-accent); }

/* ---- ENTREPRISE (page l-entreprise) ---- */
.about-intro {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}
.about-intro__img {
  border-radius: var(--r-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--c-surface-warm);
}
.about-intro__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-intro__title {
  font-family: var(--f-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}
.about-intro__title strong { color: var(--c-accent); }
.about-intro__text {
  color: var(--c-text-soft);
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}
.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 2px;
  background: var(--c-border);
}
.timeline__item {
  position: relative;
  padding-left: 56px;
  padding-bottom: 2.5rem;
}
.timeline__item:last-child { padding-bottom: 0; }
.timeline__dot {
  position: absolute;
  left: 12px;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--c-accent);
  border: 3px solid var(--c-bg);
}
.timeline__year {
  font-family: var(--f-display);
  font-weight: 700;
  color: var(--c-accent-dark);
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
}
.timeline__title {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}
.timeline__desc {
  font-size: 0.9rem;
  color: var(--c-text-soft);
  line-height: 1.6;
}

/* Team */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--s-gap);
}
.team-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.team-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.team-card__img {
  aspect-ratio: 1;
  background: var(--c-surface-warm);
  overflow: hidden;
}
.team-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.team-card__body {
  padding: 1.25rem;
  text-align: center;
}
.team-card__name {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 1.05rem;
}
.team-card__role {
  font-size: 0.85rem;
  color: var(--c-accent-dark);
  margin-top: 0.2rem;
}

/* ---- FORMULAIRE (contact) ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
}
.contact-info__item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.contact-info__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-accent-light);
  color: var(--c-accent-dark);
  border-radius: var(--r-sm);
  flex-shrink: 0;
}
.contact-info__label {
  font-size: 0.82rem;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.15rem;
}
.contact-info__value {
  font-weight: 500;
  font-size: 0.95rem;
}
.contact-info__value a {
  color: var(--c-accent-dark);
  transition: color 0.2s;
}
.contact-info__value a:hover {
  color: var(--c-accent);
}

.form {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: clamp(1.5rem, 3vw, 2.5rem);
}
.form__title {
  font-family: var(--f-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}
.form__group {
  margin-bottom: 1.25rem;
}
.form__label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--c-text);
}
.form__input,
.form__textarea,
.form__select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  font-family: var(--f-body);
  font-size: 0.92rem;
  color: var(--c-text);
  background: var(--c-bg);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px var(--c-accent-glow);
}
.form__textarea {
  resize: vertical;
  min-height: 120px;
}
.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* Zone d'intervention / map placeholder */
.map-placeholder {
  border-radius: var(--r-md);
  overflow: hidden;
  margin-top: 2rem;
  aspect-ratio: 16/9;
  background: var(--c-surface-warm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-muted);
  font-size: 0.9rem;
  border: 1px solid var(--c-border);
}

/* ---- CERTIFICATIONS ---- */
.certifs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--s-gap);
}
.certif-card {
  text-align: center;
  padding: clamp(1.5rem, 3vw, 2rem);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  transition: transform 0.3s var(--ease);
}
.certif-card:hover {
  transform: translateY(-3px);
}
.certif-card i {
  color: var(--c-accent);
  margin-bottom: 0.75rem;
}
.certif-card__title {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 0.35rem;
}
.certif-card__desc {
  font-size: 0.85rem;
  color: var(--c-text-soft);
  line-height: 1.5;
}

/* ---- FOOTER ---- */
.footer {
  background: var(--c-primary-dark);
  color: rgba(255,255,255,0.7);
  padding: clamp(3rem, 6vw, 5rem) 0 0;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: clamp(2rem, 4vw, 3rem);
}
.footer__brand { }
.footer__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}
.footer__logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--c-accent);
  color: var(--c-primary-dark);
  font-weight: 800;
  font-size: 0.85rem;
  border-radius: var(--r-sm);
}
.footer__tagline {
  font-size: 0.88rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.5);
}
.footer__col-title {
  display: block;
  font-family: var(--f-display);
  font-weight: 600;
  color: #fff;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.footer__col a {
  display: block;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  padding: 0.25rem 0;
  transition: color 0.2s;
}
.footer__col a:hover {
  color: var(--c-accent);
}
.footer__col span {
  display: block;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  padding: 0.25rem 0;
}
.footer__bottom {
  margin-top: clamp(2rem, 4vw, 3rem);
  padding: 1.25rem 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.35);
}
.footer__bottom a {
  color: var(--c-accent);
}
.footer__bottom a:hover {
  text-decoration: underline;
}

/* ---- ANIMATIONS ---- */
.reveal,
.reveal-left,
.reveal-right {
  opacity: 0;
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal { transform: translateY(24px); }
.reveal-left { transform: translateX(-30px); }
.reveal-right { transform: translateX(30px); }
.reveal.is-visible,
.reveal-left.is-visible,
.reveal-right.is-visible {
  opacity: 1;
  transform: none;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__toggle { display: flex; }
  .nav__mobile { display: flex; }

  .why-grid { grid-template-columns: 1fr; }
  .why-content { position: static; }
  .cta-block { grid-template-columns: 1fr; }
  .cta-block__certifs {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .about-intro { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .hero__title { font-size: clamp(2rem, 7vw, 2.8rem); }
  .hero__metrics { flex-wrap: wrap; gap: 1.5rem; }
  .projects-grid { grid-template-columns: 1fr; }
  .project-card--featured { grid-template-columns: 1fr; }
  .metier-block {
    grid-template-columns: 1fr;
  }
  .metier-block:nth-child(even) {
    direction: ltr;
  }
  .stats-bar { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .services-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
}