html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

:root {
  --brand: #2563eb;
  --brand-dark: #1e40af;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.parallax {
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
}
@media (max-width: 768px) {
  .parallax {
    background-attachment: scroll;
  }
}

.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.service-card:hover {
  transform: scale(1.03);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-hover:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  transition: transform 0.2s ease, box-shadow 0.3s ease;
}

img {
  display: block;
  z-index: 10;
  position: relative;
  max-width: 100%;
  height: auto;
}

/* Scroll-to-top states */
#scrollTopBtn {
  opacity: 0;
  pointer-events: none;
}
#scrollTopBtn.show {
  opacity: 1;
  pointer-events: auto;
}