:root {
  --bleu-fonce: #16385f;
  --bleu: #235a96;
  --bleu-clair: #3f74b0;
  --or: #f5b70a;
  --or-fonce: #d99e00;
  --rouge: #e02b2b;
  --blanc: #ffffff;
  --gris-fond: #f4f7fb;
  --gris-texte: #3a4656;
  --radius: 14px;
  --ombre: 0 10px 30px rgba(22, 56, 95, 0.18);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--gris-texte);
  background: var(--gris-fond);
  line-height: 1.65;
}

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

a { color: var(--bleu); text-decoration: none; }
a:hover { text-decoration: underline; }

.conteneur {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

/* En-tête */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(22, 56, 95, 0.92);
  backdrop-filter: blur(8px);
  color: var(--blanc);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 20px;
  max-width: 1080px;
  margin: 0 auto;
}

.marque {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--blanc);
  font-weight: 700;
  font-size: 1.2rem;
  line-height: 1.25;
}
.marque:hover { text-decoration: none; }
.marque .logo-badge {
  width: 90px;
  height: 90px;
  background: var(--blanc);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.marque .logo-badge img { width: 78px; height: 78px; object-fit: contain; }

nav ul {
  display: flex;
  gap: 4px;
  list-style: none;
  flex-wrap: wrap;
}
nav a {
  color: var(--blanc);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.95rem;
}
nav a:hover { background: rgba(255, 255, 255, 0.14); text-decoration: none; }
nav a.actif { background: var(--or); color: #1c2b3f; font-weight: 600; }

/* Hero */
.hero {
  background: linear-gradient(160deg, var(--bleu-clair) 0%, var(--bleu) 55%, var(--bleu-fonce) 100%);
  color: var(--blanc);
  padding: 72px 0 80px;
  overflow: hidden;
  position: relative;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  line-height: 1.15;
  margin-bottom: 16px;
}
.hero h1 span { color: var(--or); }
.hero p.accroche {
  font-size: 1.15rem;
  color: #e4eefb;
  margin-bottom: 28px;
  max-width: 34em;
}
.hero .avions {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.hero .avions img {
  filter: drop-shadow(0 14px 18px rgba(0, 0, 0, 0.25));
}
.hero .avions .avion-1 { width: 72%; align-self: flex-end; }
.hero .avions .avion-2 { width: 62%; align-self: flex-start; }

/* ULM qui passe au chargement de la page d'accueil */
.avion-anim {
  position: absolute;
  top: 12%;
  left: -220px;
  width: 190px;
  pointer-events: none;
  z-index: 6;
  opacity: 0;
  filter: drop-shadow(0 12px 16px rgba(0, 0, 0, 0.3));
  animation: vol-ulm 3.5s linear 0.3s forwards;
}
@keyframes vol-ulm {
  0%   { opacity: 0; transform: translate(0, 0); }
  8%   { opacity: 1; }
  92%  { opacity: 1; }
  100% { opacity: 0; transform: translate(118vw, -90px); }
}
@media (prefers-reduced-motion: reduce) {
  .avion-anim { display: none; }
}

/* Boutons */
.btn {
  display: inline-block;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); box-shadow: var(--ombre); }
.btn-or { background: var(--or); color: #1c2b3f; }
.btn-contour { border: 2px solid rgba(255, 255, 255, 0.75); color: var(--blanc); }
.btn-bleu { background: var(--bleu); color: var(--blanc); }

/* Sections */
section { padding: 64px 0; }
section.titre-section h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  color: var(--bleu-fonce);
  margin-bottom: 8px;
}
section.titre-section .sous-titre {
  color: #6b7a8f;
  margin-bottom: 36px;
  max-width: 44em;
}
.centre { text-align: center; }
.centre .sous-titre { margin-left: auto; margin-right: auto; }

/* Cartes activités */
.grille-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.carte {
  background: var(--blanc);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 4px 16px rgba(22, 56, 95, 0.08);
  border: 1px solid #e3ecf7;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.carte:hover { transform: translateY(-4px); box-shadow: var(--ombre); }
.carte .icone {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: #eef4fc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 16px;
}
.carte h3 { color: var(--bleu-fonce); margin-bottom: 8px; font-size: 1.15rem; }
.carte p { font-size: 0.95rem; }
.carte .lien-suite {
  display: inline-block;
  margin-top: 14px;
  font-weight: 700;
  color: var(--or-fonce);
}

/* Encart bon cadeau */
.carte-cadeau {
  background: linear-gradient(140deg, #fff9e8 0%, #ffedbf 100%);
  border: 2px solid var(--or);
  border-radius: var(--radius);
  padding: 44px 28px;
  text-align: center;
  box-shadow: var(--ombre);
}
.carte-cadeau .icone-cadeau { font-size: 2.6rem; margin-bottom: 12px; }
.carte-cadeau h2 { color: var(--bleu-fonce); margin-bottom: 10px; }
.carte-cadeau p {
  max-width: 44em;
  margin: 0 auto 24px;
  color: #5a5233;
}
.carte-cadeau .btn { margin: 0 6px 12px; }

/* Bandeau appareils */
.appareils {
  background: var(--blanc);
  border-top: 1px solid #e3ecf7;
  border-bottom: 1px solid #e3ecf7;
}
.appareils .grille-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 30px;
}
.fiche-appareil {
  background: var(--gris-fond);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}
.fiche-appareil img {
  height: 170px;
  width: auto;
  margin: 0 auto 16px;
  object-fit: contain;
}
.fiche-appareil h3 { color: var(--bleu-fonce); margin-bottom: 6px; }
.fiche-appareil p { font-size: 0.93rem; }

/* Bandeau contact */
.bande-contact {
  background: linear-gradient(140deg, var(--bleu) 0%, var(--bleu-fonce) 100%);
  color: var(--blanc);
  text-align: center;
  padding: 56px 0;
}
.bande-contact h2 { margin-bottom: 10px; font-size: 1.6rem; }
.bande-contact p { color: #d7e5f7; margin-bottom: 26px; }
.bande-contact .moyens {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.bande-contact .btn-rouge { font-size: 1.15rem; padding: 15px 30px; }

/* Détails / étapes */
.etapes { counter-reset: etape; margin-top: 10px; }
.etape {
  display: flex;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid #e3ecf7;
}
.etape:last-child { border-bottom: none; }
.etape::before {
  counter-increment: etape;
  content: counter(etape);
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--or);
  color: #1c2b3f;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.etape h3 { color: var(--bleu-fonce); font-size: 1.05rem; margin-bottom: 4px; }
.etape p { font-size: 0.95rem; }

.deux-colonnes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

.encadre-info {
  background: #eef4fc;
  border-left: 4px solid var(--or);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 18px 22px;
  font-size: 0.95rem;
  margin-top: 24px;
}

.liste-points { list-style: none; margin-top: 8px; }
.liste-points li {
  padding: 9px 0 9px 30px;
  position: relative;
}
.liste-points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 9px;
  width: 21px;
  height: 21px;
  border-radius: 50%;
  background: var(--or);
  color: #1c2b3f;
  font-size: 0.8rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Contact */
.grille-contact {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 32px;
  align-items: start;
}
.bloc-coordonnees {
  background: var(--blanc);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 4px 16px rgba(22, 56, 95, 0.08);
  border: 1px solid #e3ecf7;
}
.ligne-coord {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid #edf2f9;
  align-items: flex-start;
}
.ligne-coord:last-child { border-bottom: none; }
.ligne-coord .puce {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 10px;
  background: #eef4fc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.ligne-coord strong { display: block; color: var(--bleu-fonce); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; }
.ligne-coord a, .ligne-coord span.valeur { color: var(--gris-texte); font-size: 1rem; }
.ligne-coord a.tel { color: var(--rouge); font-weight: 700; font-size: 1.1rem; }

.formulaire {
  background: var(--blanc);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 4px 16px rgba(22, 56, 95, 0.08);
  border: 1px solid #e3ecf7;
}
.formulaire h3 { color: var(--bleu-fonce); margin-bottom: 18px; }
.champ { margin-bottom: 16px; }
.champ label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--bleu-fonce);
  margin-bottom: 6px;
}
.champ input, .champ select, .champ textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid #d4e0ef;
  border-radius: 9px;
  font-size: 0.95rem;
  font-family: inherit;
  background: #fbfdff;
  color: var(--gris-texte);
}
.champ input:focus, .champ select:focus, .champ textarea:focus {
  outline: none;
  border-color: var(--bleu);
  background: var(--blanc);
}
.champ-deux {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.formulaire .btn { width: 100%; border: none; cursor: pointer; }
.message-statut {
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: 9px;
  font-size: 0.92rem;
  display: none;
}
.message-statut.ok { display: block; background: #e6f6ec; color: #1d7a3f; }
.message-statut.erreur { display: block; background: #fdeaea; color: #b32020; }

/* Pied de page */
footer {
  background: #102a47;
  color: #b9cbe2;
  padding: 44px 0 28px;
  font-size: 0.9rem;
}
.footer-grille {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 28px;
}
footer h4 { color: var(--blanc); margin-bottom: 12px; font-size: 0.95rem; }
footer ul { list-style: none; }
footer li { padding: 4px 0; }
footer a { color: #b9cbe2; }
footer a:hover { color: var(--blanc); }
.footer-bas {
  border-top: 1px solid #24436b;
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: #8aa5c4;
}

/* Responsive */
@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; }
  .avion-anim { width: 120px; top: 6%; }
  .grille-3 { grid-template-columns: 1fr; }
  .appareils .grille-2, .deux-colonnes, .grille-contact { grid-template-columns: 1fr; }
  .footer-grille { grid-template-columns: 1fr; gap: 22px; }
  .header-inner { flex-direction: column; align-items: flex-start; }
  .marque .logo-badge { width: 64px; height: 64px; }
  .marque .logo-badge img { width: 52px; height: 52px; }
  nav ul { padding-bottom: 6px; }
}