html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.hero-slide {
  transition: opacity 1.2s ease-in-out;
}

.hero-slide img {
  transition: transform 6s linear;
}

.hero-slide.active img {
  transform: scale(1.05);
}

#lightbox {
  transition: opacity 0.3s ease;
}

#lightbox.active {
  display: flex;
}

.gallery-item {
  transition: opacity 0.4s ease, transform 0.4s ease;
}

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

.nav-link {
  color: rgba(255, 255, 255, 0.9);
}

.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.nav-link.active-link {
  color: #fff;
}

.nav-link .nav-indicator {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  border-radius: 9999px;
  background: #4ccec9;
  transition: all 0.3s ease;
}

#navbar.scrolled .nav-link {
  color: rgba(0, 0, 0, 0.7);
}

#navbar.scrolled .nav-link:hover {
  color: rgba(0, 0, 0, 1);
  background: rgba(0, 0, 0, 0.05);
}

#navbar.scrolled .nav-link.active-link {
  color: #4ccec9 !important;
}

.mobile-nav-link.active-mobile {
  color: #4ccec9;
  background: rgba(76, 206, 201, 0.1);
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(-25%);
    animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
  }
  50% {
    transform: translateY(0);
    animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
  }
}

.animate-bounce {
  animation: bounce 1s infinite;
}

/* Scroll-triggered reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.reveal.slide-left {
  transform: translateX(-60px);
}

.reveal.slide-right {
  transform: translateX(60px);
}

.reveal.scale-in {
  transform: scale(0.85);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
}

.reveal.delay-1 { transition-delay: 0.1s; }
.reveal.delay-2 { transition-delay: 0.2s; }
.reveal.delay-3 { transition-delay: 0.3s; }
.reveal.delay-4 { transition-delay: 0.4s; }
.reveal.delay-5 { transition-delay: 0.5s; }

/* Section heading underline animation */
.section-bar {
  transform: scaleX(0);
  transition: transform 0.6s ease-out 0.3s;
  transform-origin: center;
}

.section-bar.revealed {
  transform: scaleX(1);
}