#hero {
  position: relative;
  padding-top: 120px;
  padding-bottom: var(--sp-xl);
  background: var(--bg) url('../images/bg-hero.webp') center/cover no-repeat;
  overflow: hidden;
}

/* Fondu progressif vers le blanc en bas du hero, pour que l'illustration se
   fonde dans le fond blanc du carrousel juste en dessous — plus de coupure
   nette entre les deux sections. */
#hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 220px;
  background: linear-gradient(to bottom, transparent, var(--white));
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-logo {
  width: min(90%, 620px);
  height: auto;
  margin: 0 auto var(--sp-xs);
  display: block;
}

.hero-tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-family: var(--font-heading);
  font-weight: 500;
  color: var(--primary);
  margin-bottom: var(--sp-lg);
}

.hero-cta-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-sm);
}

.btn-lg {
  font-size: 1.1rem;
  padding: 16px 36px;
  min-width: 280px;
}

/* Carrousel en pile : la carte active cache en partie les 2 autres, qui
   dépassent légèrement de part et d'autre (plus petites, floutées, moins
   opaques). Flèches ← → pour naviguer, Entrée pour choisir, Échap pour
   revenir. Fond blanc épuré avec quelques formes qui dérivent doucement. */
.carousel {
  position: relative;
  background: var(--white);
  padding: var(--sp-lg) 0;
  overflow: hidden;
}

/* Fond blanc épuré, avec un habillage animé DIFFÉRENT selon l'affiche
   active dans le carrousel (vent pour Élagage, végétation pour Entretien,
   éclaboussures pour Nettoyage) — js/ui.js pose data-mode sur .carousel-bg. */
.carousel-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.bg-group {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.6s ease;
}

.carousel-bg[data-mode="elagage"] .bg-wind { opacity: 1; }
.carousel-bg[data-mode="entretien"] .bg-veg { opacity: 1; }
.carousel-bg[data-mode="nettoyage"] .bg-splash { opacity: 1; }

/* Élagage — traits de vent qui filent horizontalement */
.wind-line {
  position: absolute;
  left: -20%;
  width: 32%;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, #b7c9c4, transparent);
  animation: wind-blow 7s linear infinite;
}

.wind-line--1 { top: 18%; animation-duration: 6s; animation-delay: 0s; }
.wind-line--2 { top: 34%; animation-duration: 8s; animation-delay: 1.5s; }
.wind-line--3 { top: 62%; animation-duration: 6.5s; animation-delay: 3s; }
.wind-line--4 { top: 78%; animation-duration: 9s; animation-delay: 0.8s; }

@keyframes wind-blow {
  0% { transform: translateX(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateX(430%); opacity: 0; }
}

/* Entretien — brins qui se balancent en bas de l'écran */
.veg-blade {
  position: absolute;
  bottom: -6px;
  width: 5px;
  height: 60px;
  background: #a9c79a;
  border-radius: 6px 6px 0 0;
  transform-origin: bottom center;
  animation: veg-sway 4.5s ease-in-out infinite;
}

.veg-blade--1 { left: 4%; height: 46px; animation-duration: 4s; }
.veg-blade--2 { left: 11%; height: 70px; animation-duration: 5.2s; animation-delay: 0.4s; }
.veg-blade--3 { left: 20%; height: 40px; animation-duration: 3.6s; animation-delay: 0.8s; }
.veg-blade--4 { right: 18%; height: 64px; animation-duration: 4.8s; animation-delay: 0.2s; }
.veg-blade--5 { right: 10%; height: 44px; animation-duration: 4.2s; animation-delay: 1s; }
.veg-blade--6 { right: 4%; height: 56px; animation-duration: 5.5s; animation-delay: 0.6s; }

@keyframes veg-sway {
  0%, 100% { transform: rotate(-6deg); }
  50% { transform: rotate(7deg); }
}

/* Nettoyage — ondes façon éclaboussure d'eau */
.splash-ring {
  position: absolute;
  bottom: 8%;
  left: 50%;
  width: 30px;
  height: 30px;
  border: 2px solid #a9c9d6;
  border-radius: 50%;
  transform: translate(-50%, 50%) scale(0);
  opacity: 0;
  animation: splash-out 3.6s ease-out infinite;
}

.splash-ring--1 { left: 20%; animation-delay: 0s; }
.splash-ring--2 { left: 50%; animation-delay: 1.2s; }
.splash-ring--3 { left: 80%; animation-delay: 2.4s; }

@keyframes splash-out {
  0% { transform: translate(-50%, 50%) scale(0); opacity: 0.7; }
  70% { opacity: 0.25; }
  100% { transform: translate(-50%, 50%) scale(9); opacity: 0; }
}

.carousel-track {
  position: relative;
  z-index: 1;
  height: 78vh;
}

.carousel-slide {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(560px, 74vw);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1),
              opacity 0.55s ease,
              filter 0.55s ease;
}

/* .slide-visual épouse exactement la taille réelle de l'image affichée
   (elle se réduit à son contenu) — c'est sur CE cadre-là, pas sur toute la
   colonne .carousel-slide, que se pose le voile de survol. */
.slide-visual {
  position: relative;
  max-height: 100%;
  max-width: 100%;
}

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

.carousel-slide.stack-front {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  filter: blur(0);
  z-index: 3;
}

.carousel-slide.stack-right {
  transform: translate(-50%, -50%) translateX(52%) scale(0.82);
  opacity: 0.45;
  filter: blur(3px);
  z-index: 2;
}

.carousel-slide.stack-left {
  transform: translate(-50%, -50%) translateX(-52%) scale(0.82);
  opacity: 0.45;
  filter: blur(3px);
  z-index: 1;
}

.carousel-slide.stack-front:hover img { transform: scale(1.02); }

/* Survol : voile blanc + nom du service + bouton "Découvrir".
   Calé sur .slide-visual (donc sur l'image réelle, pas la colonne), et
   légèrement rentré de chaque côté pour bien se détacher du bord. */
.slide-hover {
  position: absolute;
  top: 1cm;
  right: 1cm;
  bottom: 1cm;
  left: 1cm;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  background: rgba(255, 255, 255, 0.82);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.carousel-slide:hover .slide-hover { opacity: 1; }

.slide-hover-title {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 2rem;
  color: var(--text);
}

.slide-hover-btn {
  background: var(--primary);
  color: var(--white);
  font-weight: 500;
  padding: 10px 28px;
}

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  font-size: 1.6rem;
  line-height: 1;
  color: var(--primary);
  cursor: pointer;
  z-index: 4;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.carousel-arrow--prev { left: var(--sp-md); }
.carousel-arrow--next { right: var(--sp-md); }
.carousel-arrow:hover { background: var(--primary); color: var(--white); transform: translateY(-50%) scale(1.08); }
.carousel-arrow:active { transform: translateY(-50%) scale(0.94); }

.carousel-dots {
  position: relative;
  z-index: 4;
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: var(--sp-md);
}

.carousel-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--border);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: var(--transition);
}

.carousel-dot.active { background: var(--primary); width: 24px; border-radius: 5px; }

@media (max-width: 640px) {
  .carousel-slide.stack-right { transform: translate(-50%, -50%) translateX(38%) scale(0.8); }
  .carousel-slide.stack-left { transform: translate(-50%, -50%) translateX(-38%) scale(0.8); }
  .carousel-track { height: 62vh; }
}

/* Auto-hide header once you scroll past the hero; reappears on hover-near-top or scroll up */
#navbar {
  transition: transform 0.25s ease;
}

#navbar.nav-hidden {
  transform: translateY(-100%);
}