/* Nav
   Ported from apps/web-publica/src/components/Nav.astro (read-only reference), unscoped. */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  background: transparent;
  transition: background-color 0.3s ease, padding 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}
.nav--scrolled {
  background: var(--overlay-nav);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 0.75rem 0;
  border-bottom-color: var(--border);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-size: 0.95rem;
}
.nav-links a:not(.nav-cta) {
  color: var(--text-2);
  transition: color 0.2s ease;
  position: relative;
}
.nav-links a:not(.nav-cta):hover { color: var(--text-1); }
.nav-links a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.25s ease;
}
.nav-links a:not(.nav-cta):hover::after { width: 100%; }
.nav-cta {
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--text-1);
  transition: all 0.2s ease;
}
.nav-cta:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-on-fill);
}

.nav-burger {
  display: none;
  width: 28px;
  height: 28px;
  position: relative;
  flex-direction: column;
  gap: 5px;
  justify-content: center;
  align-items: center;
}
.nav-burger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-1);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-burger--open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-burger--open span:nth-child(2) { opacity: 0; }
.nav-burger--open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-burger { display: flex; }
  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    width: min(340px, 90vw);
    height: 100vh;
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 2rem 2rem;
    background: var(--bg-2);
    border-left: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }
  .nav-links--open { transform: translateX(0); }
}