/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { overflow-x: hidden; }

/* ── Header scroll state ── */
#site-header {
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}
#site-header.scrolled {
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

/* ── Hero fade-in ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-animated > div > div:first-child > * {
  animation: fadeUp 0.8s ease forwards;
  opacity: 0;
}
.hero-animated > div > div:first-child > *:nth-child(1) { animation-delay: 0.1s; }
.hero-animated > div > div:first-child > *:nth-child(2) { animation-delay: 0.25s; }
hero-animated > div > div:first-child > *:nth-child(3) { animation-delay: 0.4s; }
.hero-animated > div > div:first-child > *:nth-child(4) { animation-delay: 0.55s; }
.hero-animated > div > div:first-child > *:nth-child(5) { animation-delay: 0.7s; }

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Mobile menu ── */
#mobile-menu.open .menu-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
#mobile-menu.open .menu-line:nth-child(2) {
  opacity: 0;
}
#mobile-menu.open .menu-line:nth-child(3) {
  width: 100%;
}

/* ── Nav text color on scroll ── */
#site-header:not(.scrolled) .text-navy-900,
#site-header:not(.scrolled) a {
  color: #ffffff;
}
#site-header.scrolled .text-navy-900,
#site-header.scrolled a {
  color: #0a1a30;
}
#site-header:not(.scrolled) .menu-line {
  background: #ffffff;
}
#site-header.scrolled .menu-line {
  background: #0a1a30;
}
</style>