/* ==============================================================
   site-nav.css - shared top navigation (Infinite Atom 3.0)
   Sticky glass nav, clean typography, refined mobile menu.
   Classes site-nav-enhanced / site-nav-open / site-nav-actions /
   site-nav-toggle are added by site-nav.js - do not rename.
   ============================================================== */

nav.site-nav-enhanced {
  position: sticky;
  top: 0;
  z-index: 950;
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid var(--site-nav-border, rgba(44, 224, 199, 0.12));
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 10px 30px rgba(0, 0, 0, 0.18);
}

:root[data-theme="light"] nav.site-nav-enhanced {
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 10px 30px rgba(30, 41, 54, 0.07);
}

nav.site-nav-enhanced .nav-links a {
  position: relative;
  padding: 0.35rem 0.15rem;
  color: var(--text-dim, #93A1B5);
  transition: color 180ms ease;
}

nav.site-nav-enhanced .nav-links a:hover,
nav.site-nav-enhanced .nav-links a.active {
  color: var(--text-strong, #F4F8FF);
}

nav.site-nav-enhanced .nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent, #2CE0C7), transparent);
  opacity: 0;
  transform: scaleX(0.6);
  transform-origin: left center;
  transition: opacity 180ms ease, transform 180ms ease;
}

nav.site-nav-enhanced .nav-links a:hover::after,
nav.site-nav-enhanced .nav-links a.active::after {
  opacity: 1;
  transform: scaleX(1);
}

.site-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border, rgba(44, 224, 199, 0.14));
  border-radius: 12px;
  background: var(--site-muted-surface, rgba(255, 255, 255, 0.04));
  color: var(--text, #C6D2E2);
  cursor: pointer;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1rem;
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease;
}

.site-nav-toggle svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

.site-nav-toggle:hover {
  border-color: var(--accent, #2CE0C7);
  color: var(--accent, #2CE0C7);
}

.site-nav-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}

@media (max-width: 1180px) {
  nav.site-nav-enhanced {
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-start;
  }

  nav.site-nav-enhanced .site-nav-toggle {
    display: inline-flex;
  }

  nav.site-nav-enhanced .nav-links,
  nav.site-nav-enhanced .site-nav-actions {
    display: none;
    width: 100%;
  }

  nav.site-nav-enhanced.site-nav-open .nav-links,
  nav.site-nav-enhanced.site-nav-open .site-nav-actions {
    display: flex;
    animation: site-nav-reveal 180ms ease both;
  }

  @keyframes site-nav-reveal {
    from {
      opacity: 0;
      transform: translateY(-6px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @media (prefers-reduced-motion: reduce) {
    nav.site-nav-enhanced.site-nav-open .nav-links,
    nav.site-nav-enhanced.site-nav-open .site-nav-actions {
      animation: none;
    }
  }

  nav.site-nav-enhanced .nav-links {
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.5rem 0 0.25rem;
    align-items: stretch;
  }

  nav.site-nav-enhanced .nav-links li,
  nav.site-nav-enhanced .nav-links a {
    width: 100%;
  }

  nav.site-nav-enhanced .nav-links a {
    display: block;
    padding: 0.7rem 0.85rem;
    border-radius: 10px;
  }

  nav.site-nav-enhanced .nav-links a:hover,
  nav.site-nav-enhanced .nav-links a.active {
    background: var(--site-muted-surface, rgba(255, 255, 255, 0.04));
  }

  nav.site-nav-enhanced .nav-links a::after {
    content: none;
  }

  nav.site-nav-enhanced .site-nav-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    padding-bottom: 0.5rem;
    border-top: 1px solid var(--border, rgba(44, 224, 199, 0.14));
    padding-top: 0.85rem;
  }

  nav.site-nav-enhanced .site-nav-actions > * {
    width: 100%;
    text-align: center;
  }

  /* User pill in mobile nav: full width, centered */
  nav.site-nav-enhanced .site-nav-actions .nav-user-pill {
    width: 100%;
  }
  nav.site-nav-enhanced .site-nav-actions .nav-user-inner {
    width: 100%;
    justify-content: center;
    padding: 0.6rem 1rem;
    border: 1px solid var(--border, rgba(44, 224, 199, 0.14));
    border-radius: 12px;
  }
  nav.site-nav-enhanced .site-nav-actions .nav-user-dropdown {
    position: static;
    display: block;
    box-shadow: none;
    border: none;
    border-top: 1px solid var(--border, rgba(44, 224, 199, 0.14));
    border-radius: 0 0 12px 12px;
    background: var(--site-muted-surface, rgba(255, 255, 255, 0.03));
  }
}

@media (max-width: 480px) {
  nav.site-nav-enhanced {
    padding: 0.85rem 1rem;
    gap: 0.75rem;
  }

  nav.site-nav-enhanced .site-nav-actions > * {
    min-width: 0;
  }

  .site-nav-toggle {
    width: 40px;
    height: 40px;
    font-size: 0.9rem;
  }

  .site-nav-toggle svg {
    width: 18px;
    height: 18px;
  }
}