:root {
  --color-primary: #2C3E50;
  --color-secondary: #5D7D8A;
  --color-accent: #7FBBCA;
}

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body { font-family: 'Nunito Sans', system-ui, sans-serif; }

[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.rotate-180 { transform: rotate(180deg); }

.site-header {
  background: linear-gradient(180deg, rgba(44,62,80,0.55) 0%, rgba(44,62,80,0.18) 55%, rgba(44,62,80,0) 100%);
}
.site-header.is-scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(17,24,39,0.06);
}
.site-header.is-scrolled .header-link,
.site-header.is-scrolled .mobile-link,
.site-header.is-scrolled a,
.site-header.is-scrolled button {
  color: rgb(17,24,39);
}
.site-header.is-scrolled .header-link:hover,
.site-header.is-scrolled a:hover {
  color: rgb(17,24,39);
}
.site-header.is-scrolled .group span.text-white,
.site-header.is-scrolled .group span.text-white\/80 {
  color: rgb(17,24,39);
}
.site-header.is-scrolled .group span.text-white\/80 {
  color: rgb(75,85,99);
}
.site-header.is-scrolled #mobile-menu-btn {
  color: rgb(17,24,39);
  background: rgba(17,24,39,0.04);
  ring-color: rgba(17,24,39,0.10);
}

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(127,187,202,0.35);
  border-color: rgba(127,187,202,0.75);
}

::selection {
  background: rgba(127,187,202,0.35);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-animate] { transition: none; }
}