/* ===================================================================
   BEA PRESTATION — Feuille de style principale
   Palette : blanc / bleu marine affirmé / bleu vif / touche dorée chaude
   Typographie : Lexend (titres) + Source Sans 3 (texte)
   =================================================================== */

:root {
  --navy: #0f2f5e;           /* bleu marine affirmé (titres, aplats) */
  --navy-dark: #0a2140;      /* marine profond (dégradés, footer) */
  --navy-soft: #1c4a86;      /* marine plus clair (dégradés boutons) */
  --blue: #2563eb;           /* bleu vif (accents, liens) */
  --blue-bright: #3b82f6;    /* bleu clair lumineux */
  --blue-light: #e6eefc;     /* fond bleu très clair */
  --blue-tint: #f0f5fd;      /* teinte bleutée sections */
  --gold: #e2a017;           /* doré chaud (boutons, accents) */
  --gold-dark: #97640c;      /* doré foncé lisible sur blanc (texte) */
  --gold-soft: #f4cf7a;      /* doré clair (sur fond marine) */
  --ink: #16233a;            /* texte principal, fort contraste */
  --muted-ink: #47566b;      /* texte secondaire (≈ 6:1 sur blanc) */
  --soft-ink: #5b6a80;       /* texte tertiaire discret */
  --bg: #ffffff;
  --bg-muted: #f1f6fc;       /* gris-bleu très clair */
  --border: #dde5f1;
  --border-strong: #c8d5e8;
  --radius: 16px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 10px rgba(15, 47, 94, 0.06);
  --shadow-md: 0 14px 34px rgba(15, 47, 94, 0.13);
  --shadow-lg: 0 24px 60px rgba(15, 47, 94, 0.18);
  --shadow-gold: 0 12px 26px rgba(226, 160, 23, 0.30);
  --font-head: 'Lexend', sans-serif;
  --font-body: 'Source Sans 3', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a { color: var(--blue); text-decoration: none; }

.container {
  width: min(1140px, 100% - 2.5rem);
  margin-inline: auto;
}

h1, h2, h3 { font-family: var(--font-head); color: var(--navy); line-height: 1.18; letter-spacing: -0.01em; }

h2 { font-size: clamp(1.75rem, 3.6vw, 2.5rem); font-weight: 700; }

/* ------------------------- Boutons ------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .9rem 1.8rem;
  border-radius: 999px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform .22s ease, box-shadow .22s ease, background-color .22s ease, color .22s ease, border-color .22s ease;
  min-height: 50px;
  position: relative;
  overflow: hidden;
}
.btn:active { transform: scale(.97); }
.btn-icon { width: 1.2em; height: 1.2em; flex-shrink: 0; }

/* effet de brillance discret au survol */
.btn::after {
  content: "";
  position: absolute;
  top: 0; left: -80%;
  width: 55%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.35), transparent);
  transform: skewX(-18deg);
  transition: left .55s ease;
}
.btn:hover::after { left: 130%; }

.btn-primary { background: linear-gradient(135deg, var(--navy), var(--navy-soft)); color: #fff; box-shadow: 0 8px 20px rgba(15,47,94,.22); }
.btn-primary:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

.btn-outline { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn-outline:hover { background: var(--blue-light); border-color: var(--navy); transform: translateY(-2px); }

.btn-gold { background: linear-gradient(135deg, var(--gold), #cf8f10); color: #3a2600; }
.btn-gold:hover { box-shadow: var(--shadow-gold); transform: translateY(-2px); }

.btn-outline-light { border-color: rgba(255,255,255,.75); color: #fff; background: transparent; }
.btn-outline-light:hover { background: rgba(255,255,255,.14); transform: translateY(-2px); }

.btn-block { width: 100%; justify-content: center; }

/* ------------------------- Navigation ------------------------- */
.navbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, box-shadow .25s ease, background-color .25s ease;
}
.navbar.scrolled { border-bottom-color: var(--border); box-shadow: var(--shadow-sm); background: rgba(255,255,255,.96); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand { display: flex; align-items: center; gap: .7rem; }
.brand-logo { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; box-shadow: 0 2px 8px rgba(15,47,94,.18); }
.brand-name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--navy);
  letter-spacing: .02em;
}
.brand-name span { color: var(--gold-dark); }
.brand-name.light { color: #fff; }
.brand-name.light span { color: var(--gold-soft); }

.nav-links { display: flex; align-items: center; gap: 1.6rem; }
.nav-link {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: .95rem;
  color: var(--ink);
  padding: .35rem 0;
  position: relative;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 2.5px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--gold), var(--blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .28s ease;
}
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-link:hover, .nav-link.active { color: var(--navy); }

.nav-cta {
  background: linear-gradient(135deg, var(--navy), var(--navy-soft));
  color: #fff !important;
  padding: .58rem 1.35rem;
  border-radius: 999px;
  box-shadow: 0 6px 16px rgba(15,47,94,.2);
  transition: transform .2s ease, box-shadow .2s ease;
}
.nav-cta::after { display: none; }
.nav-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 10px;
  cursor: pointer;
}
.nav-toggle span {
  width: 24px; height: 2.5px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ------------------------- Hero ------------------------- */
.hero {
  position: relative;
  padding: calc(72px + clamp(2.5rem, 7vw, 5.5rem)) 0 clamp(3.5rem, 7vw, 6rem);
  background:
    radial-gradient(1100px 520px at 88% -12%, var(--blue-light) 0%, transparent 58%),
    radial-gradient(760px 420px at 6% 108%, rgba(226,160,23,.10) 0%, transparent 60%),
    var(--bg);
  overflow: hidden;
}
/* forme décorative discrète */
.hero::before {
  content: "";
  position: absolute;
  top: -120px; right: -80px;
  width: 360px; height: 360px;
  border-radius: 42% 58% 55% 45% / 45% 45% 55% 55%;
  background: radial-gradient(circle at 30% 30%, rgba(59,130,246,.14), transparent 70%);
  z-index: 0;
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-head);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gold-dark);
  background: rgba(226,160,23,.12);
  padding: .4rem .9rem;
  border-radius: 999px;
  margin-bottom: 1.2rem;
}
.hero-eyebrow::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(226,160,23,.25);
}
.hero h1 {
  font-size: clamp(2rem, 4.4vw, 3.15rem);
  font-weight: 700;
  margin-bottom: 1.2rem;
}
.hero .accent { color: var(--blue); position: relative; white-space: nowrap; }
.hero-sub { font-size: 1.12rem; color: var(--muted-ink); max-width: 34rem; }
.hero-slogan {
  margin-top: 1rem;
  font-family: var(--font-head);
  font-weight: 600;
  color: var(--navy);
  font-size: 1.02rem;
  padding-left: .9rem;
  border-left: 3px solid var(--gold);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2rem; }

.hero-image { position: relative; }
/* accent coloré derrière l'image */
.hero-image::before {
  content: "";
  position: absolute;
  inset: -14px auto auto -14px;
  width: 62%; height: 62%;
  border-radius: 26px;
  background: linear-gradient(135deg, var(--blue-bright), var(--navy));
  opacity: .16;
  z-index: 0;
}
.hero-image::after {
  content: "";
  position: absolute;
  right: -16px; bottom: -16px;
  width: 90px; height: 90px;
  border-radius: 20px;
  background: repeating-linear-gradient(45deg, var(--gold) 0 2px, transparent 2px 9px);
  opacity: .5;
  z-index: 0;
}
.hero-image-frame {
  position: relative;
  z-index: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 6px solid #fff;
  outline: 1px solid var(--border);
}
.hero-image-frame img { width: 100%; height: auto; object-fit: cover; aspect-ratio: 10 / 9; }

/* ------------------------- Sections ------------------------- */
.section { padding: clamp(3.4rem, 7vw, 6rem) 0; position: relative; }
.section-muted {
  background:
    radial-gradient(800px 360px at 100% 0%, rgba(59,130,246,.06), transparent 60%),
    var(--bg-muted);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head { text-align: center; max-width: 44rem; margin: 0 auto clamp(2.2rem, 5vw, 3.4rem); }
.section-eyebrow {
  font-family: var(--font-head);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: .6rem;
}
.section-eyebrow.light { color: var(--gold-soft); }
/* soulignement animé sous les titres de section */
.section-head h2 { display: inline-block; position: relative; padding-bottom: .7rem; }
.section-head h2::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  width: 62px; height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--gold), var(--blue));
  transform: translateX(-50%) scaleX(0);
  transform-origin: center;
  transition: transform .55s ease .15s;
}
.section-head.visible h2::after { transform: translateX(-50%) scaleX(1); }

/* ------------------------- À propos ------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}
.about-text p + p { margin-top: 1rem; }
.about-text { color: var(--muted-ink); font-size: 1.08rem; }

.about-values { display: grid; gap: 1rem; }
.value-card {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 1rem;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.35rem;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.value-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.value-card h3 { font-size: 1.05rem; }
.value-card p { grid-column: 2; color: var(--muted-ink); font-size: .95rem; margin-top: .2rem; }
.value-icon {
  grid-row: span 2;
  width: 48px; height: 48px;
  border-radius: 13px;
  background: linear-gradient(140deg, var(--blue-light), #d3e2fb);
  color: var(--navy);
  display: grid; place-items: center;
  transition: transform .25s ease;
}
.value-card:hover .value-icon { transform: scale(1.08) rotate(-3deg); }
.value-icon svg { width: 24px; height: 24px; }

/* ------------------------- Services ------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}
.service-card {
  position: relative;
  overflow: hidden;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem 1.55rem;
  box-shadow: var(--shadow-sm);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
/* barre d'accent supérieure au survol */
.service-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 54px; height: 54px;
  border-radius: 15px;
  background: linear-gradient(140deg, var(--navy), var(--blue));
  color: #fff;
  display: grid; place-items: center;
  margin-bottom: 1.15rem;
  box-shadow: 0 8px 18px rgba(15,47,94,.22);
  transition: transform .3s ease;
}
.service-card:hover .service-icon { transform: translateY(-2px) rotate(-4deg) scale(1.06); }
.service-icon svg { width: 26px; height: 26px; }
.service-card h3 { font-size: 1.14rem; margin-bottom: .75rem; }
.service-card ul { list-style: none; }
.service-card li {
  position: relative;
  padding-left: 1.3rem;
  color: var(--muted-ink);
  font-size: .97rem;
  margin-top: .45rem;
}
.service-card li::before {
  content: "";
  position: absolute;
  left: 0; top: .5em;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(226,160,23,.15);
}

/* ------------------------- Galerie ------------------------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .6rem;
  margin-bottom: 2.2rem;
}
.filter-btn {
  font-family: var(--font-head);
  font-size: .9rem;
  font-weight: 500;
  padding: .55rem 1.25rem;
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--bg);
  color: var(--muted-ink);
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.filter-btn:hover { border-color: var(--navy); color: var(--navy); transform: translateY(-1px); }
.filter-btn.active { background: linear-gradient(135deg, var(--navy), var(--navy-soft)); border-color: var(--navy); color: #fff; box-shadow: 0 8px 18px rgba(15,47,94,.22); }

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.3rem;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  background: var(--navy-dark);
  transition: transform .28s ease, box-shadow .28s ease;
}
.gallery-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.gallery-item img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform .5s ease, opacity .3s ease;
}
.gallery-item:hover img { transform: scale(1.07); opacity: .9; }
/* icône loupe « voir en grand » au survol */
.gallery-item::after {
  content: "";
  position: absolute;
  top: .75rem; right: .75rem;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,.95) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230f2f5e' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3Cline x1='11' y1='8' x2='11' y2='14'/%3E%3Cline x1='8' y1='11' x2='14' y2='11'/%3E%3C/svg%3E") center / 20px no-repeat;
  opacity: 0;
  transform: scale(.7);
  transition: opacity .25s ease, transform .25s ease;
  pointer-events: none;
  box-shadow: 0 4px 12px rgba(0,0,0,.25);
}
.gallery-item:hover::after { opacity: 1; transform: scale(1); }
.gallery-item figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 2.6rem .95rem .85rem;
  background: linear-gradient(transparent, rgba(10, 33, 64, .92));
  color: #fff;
  display: flex;
  flex-direction: column;
  gap: .12rem;
  transform: translateY(0);
  transition: transform .3s ease;
}
.g-cat { font-size: .72rem; letter-spacing: .09em; text-transform: uppercase; color: var(--gold-soft); font-family: var(--font-head); font-weight: 600; }
.g-title { font-family: var(--font-head); font-weight: 600; font-size: .99rem; }

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

/* ------------------------- Pourquoi nous ------------------------- */
.section-navy {
  position: relative;
  background:
    radial-gradient(700px 400px at 12% 8%, rgba(59,130,246,.22), transparent 55%),
    radial-gradient(680px 380px at 90% 100%, rgba(226,160,23,.14), transparent 55%),
    linear-gradient(160deg, var(--navy) 0%, var(--navy-dark) 100%);
  overflow: hidden;
}
.section-navy h2 { color: #fff; }

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.4rem;
}
.why-card {
  background: rgba(255,255,255,.055);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius);
  padding: 1.7rem 1.45rem;
  backdrop-filter: blur(2px);
  transition: transform .28s ease, background-color .28s ease, border-color .28s ease;
}
.why-card:hover { transform: translateY(-5px); background: rgba(255,255,255,.1); border-color: rgba(244,207,122,.4); }
.why-icon {
  width: 50px; height: 50px;
  border-radius: 13px;
  background: linear-gradient(140deg, var(--gold), #cf8f10);
  color: #3a2600;
  display: grid; place-items: center;
  margin-bottom: 1.05rem;
  box-shadow: 0 8px 18px rgba(226,160,23,.3);
  transition: transform .28s ease;
}
.why-card:hover .why-icon { transform: scale(1.08) rotate(-4deg); }
.why-icon svg { width: 25px; height: 25px; }
.why-card h3 { color: #fff; font-size: 1.1rem; margin-bottom: .55rem; }
.why-card p { color: #cdd9ec; font-size: .96rem; }

/* ------------------------- Équipe ------------------------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 320px));
  justify-content: center;
  gap: 2rem;
}
.team-card {
  text-align: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.team-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.team-photo {
  width: 158px; height: 158px;
  margin: 0 auto 1.2rem;
  border-radius: 50%;
  overflow: hidden;
  padding: 4px;
  background: linear-gradient(140deg, var(--blue-bright), var(--navy));
  box-shadow: 0 10px 24px rgba(15,47,94,.2);
}
.team-photo img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; object-position: center 20%; transition: transform .4s ease; }
.team-card:hover .team-photo img { transform: scale(1.05); }
.team-card h3 { font-size: 1.18rem; }
.team-role {
  display: inline-block;
  font-family: var(--font-head);
  font-size: .82rem;
  font-weight: 600;
  color: var(--gold-dark);
  background: rgba(226,160,23,.12);
  padding: .25rem .8rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin: .5rem 0 .7rem;
}
.team-desc { color: var(--muted-ink); font-size: .96rem; }

/* ------------------------- Bandeau CTA ------------------------- */
.cta-band {
  position: relative;
  background:
    radial-gradient(720px 320px at 14% 120%, rgba(226,160,23,.28) 0%, transparent 60%),
    radial-gradient(680px 320px at 90% -20%, rgba(59,130,246,.24) 0%, transparent 60%),
    linear-gradient(140deg, var(--navy-dark), var(--navy));
  padding: clamp(3.2rem, 6vw, 4.8rem) 0;
  text-align: center;
  overflow: hidden;
}
.cta-inner h2 { color: #fff; margin-bottom: .8rem; }
.cta-inner p { color: #cdd9ec; max-width: 36rem; margin: 0 auto 1.7rem; font-size: 1.05rem; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: .9rem; }

/* ------------------------- Contact ------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}
.contact-info { display: grid; gap: 1.2rem; }
.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.contact-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.contact-icon {
  width: 46px; height: 46px;
  flex-shrink: 0;
  border-radius: 13px;
  background: linear-gradient(140deg, var(--blue-light), #d3e2fb);
  color: var(--navy);
  display: grid; place-items: center;
}
.contact-icon svg { width: 22px; height: 22px; }
.contact-item h3 { font-size: 1rem; margin-bottom: .15rem; }
.contact-item p { color: var(--muted-ink); font-size: .98rem; }
.contact-item a { color: var(--navy); font-weight: 600; }
.contact-item a:hover { color: var(--blue); }
.contact-sub { font-size: .88rem; color: var(--soft-ink); }

.contact-form {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2.1rem);
  box-shadow: var(--shadow-md);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1.1rem; }
.form-group label {
  display: block;
  font-family: var(--font-head);
  font-weight: 500;
  font-size: .92rem;
  color: var(--navy);
  margin-bottom: .38rem;
}
.req { color: #dc2626; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  padding: .78rem .95rem;
  min-height: 50px;
  border: 1px solid var(--border-strong);
  border-radius: 11px;
  background: var(--bg);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.form-group textarea { resize: vertical; min-height: 112px; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .16);
}
.form-group input.error,
.form-group select.error,
.form-group textarea.error { border-color: #dc2626; }
.form-note { font-size: .88rem; color: var(--soft-ink); margin-bottom: 1rem; }
.form-feedback { margin-top: .8rem; font-weight: 600; font-size: .95rem; min-height: 1.2em; }
.form-feedback.ok { color: #15803d; }
.form-feedback.err { color: #dc2626; }

/* ------------------------- Pied de page ------------------------- */
.footer {
  background:
    radial-gradient(700px 300px at 90% 0%, rgba(59,130,246,.12), transparent 60%),
    var(--navy-dark);
  color: #b8c5da;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1.2fr 1fr;
  gap: 2rem;
  padding: clamp(2.6rem, 5vw, 3.6rem) 0 2rem;
}
.footer-logo-row { display: flex; align-items: center; gap: .7rem; margin-bottom: .9rem; }
.footer-brand p { font-size: .95rem; }
.footer-slogan { margin-top: .7rem; color: var(--gold-soft); font-style: italic; font-size: .92rem; }
.footer-col h3 {
  color: #fff;
  font-size: .95rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: .95rem;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-top: .5rem; font-size: .95rem; }
.footer-col a { color: #b8c5da; transition: color .2s ease, padding-left .2s ease; }
.footer-col a:hover { color: #fff; padding-left: 3px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 1.15rem 0;
  font-size: .9rem;
  text-align: center;
}

/* ------------------------- WhatsApp flottant ------------------------- */
.whatsapp-float {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 90;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 22px rgba(37, 211, 102, .45);
  transition: transform .2s ease, box-shadow .2s ease;
}
.whatsapp-float::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(37, 211, 102, .5);
  animation: wa-pulse 2.4s ease-out infinite;
}
@keyframes wa-pulse {
  0% { box-shadow: 0 0 0 0 rgba(37,211,102,.45); }
  70% { box-shadow: 0 0 0 16px rgba(37,211,102,0); }
  100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}
.whatsapp-float:hover { transform: scale(1.08); box-shadow: 0 10px 28px rgba(37, 211, 102, .55); }
.whatsapp-float svg { width: 28px; height: 28px; position: relative; }

/* ------------------------- Lightbox ------------------------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(8, 20, 40, .93);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  animation: lb-fade .25s ease;
}
@keyframes lb-fade { from { opacity: 0; } to { opacity: 1; } }
.lightbox[hidden] { display: none; }
.lightbox-figure { max-width: min(920px, 92vw); text-align: center; }
.lightbox-figure img {
  max-width: 100%;
  max-height: 78vh;
  margin: 0 auto;
  border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.lightbox-figure figcaption { color: #dbe4f2; margin-top: .9rem; font-family: var(--font-head); }
.lightbox-close, .lightbox-nav {
  position: absolute;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.25);
  color: #fff;
  cursor: pointer;
  border-radius: 50%;
  width: 48px; height: 48px;
  font-size: 1.5rem;
  line-height: 1;
  display: grid; place-items: center;
  transition: background-color .2s ease, transform .2s ease;
}
.lightbox-close:hover, .lightbox-nav:hover { background: rgba(255,255,255,.25); transform: scale(1.08); }
.lightbox-close { top: 1.2rem; right: 1.2rem; }
.lightbox-prev { left: 1rem; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 1rem; top: 50%; transform: translateY(-50%); }
.lightbox-prev:hover { transform: translateY(-50%) scale(1.08); }
.lightbox-next:hover { transform: translateY(-50%) scale(1.08); }

/* ------------------------- Animations au défilement ------------------------- */
.reveal, .reveal-img {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .6s ease, transform .6s ease;
  will-change: opacity, transform;
}
.reveal-img { transform: translateY(0) scale(.95); }
.reveal.visible, .reveal-img.visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: .1s; }
.delay-2 { transition-delay: .2s; }
.delay-3 { transition-delay: .3s; }

/* léger décalage en cascade dans les grilles */
.services-grid .reveal:nth-child(2) { transition-delay: .08s; }
.services-grid .reveal:nth-child(3) { transition-delay: .16s; }
.services-grid .reveal:nth-child(4) { transition-delay: .24s; }
.why-grid .reveal:nth-child(2) { transition-delay: .08s; }
.why-grid .reveal:nth-child(3) { transition-delay: .16s; }
.why-grid .reveal:nth-child(4) { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .reveal-img { opacity: 1; transform: none; transition: none; }
  .section-head h2::after { transition: none; transform: translateX(-50%) scaleX(1); }
  .whatsapp-float::before { animation: none; }
  * { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* ------------------------- Focus visible ------------------------- */
a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

/* ------------------------- Responsive ------------------------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-image { max-width: 430px; margin: 0 auto; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: .6rem 1.25rem 1.2rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: transform .25s ease, opacity .25s ease, visibility .25s;
  }
  .nav-links.open { transform: none; opacity: 1; visibility: visible; }
  .nav-link { padding: .85rem 0; font-size: 1.05rem; border-bottom: 1px solid var(--bg-muted); }
  .nav-link::after { display: none; }
  .nav-cta { margin-top: .8rem; text-align: center; justify-content: center; display: flex; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .lightbox { padding: 1rem; }
  .lightbox-prev { left: .4rem; }
  .lightbox-next { right: .4rem; }
  .hero::before { display: none; }
}