/*
 * Reusable mobile navigation component (off-canvas panel).
 * No external UI/animation libraries — plain CSS transforms/transitions.
 * Paired with assets/js/nav.js. Desktop nav (.nn-nav-links) is untouched;
 * this only governs the mobile toggle button and slide-in panel, which
 * are hidden above the site's existing 860px breakpoint.
 */

.nn-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm, 6px);
  color: var(--navy);
  cursor: pointer;
  flex-shrink: 0;
}

.nn-nav-toggle:hover {
  background: var(--paper-2);
}

.nn-nav-toggle:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 2px;
}

.nn-nav-toggle-icon-close {
  display: none;
}

.nn-nav-toggle[aria-expanded="true"] .nn-nav-toggle-icon-open {
  display: none;
}

.nn-nav-toggle[aria-expanded="true"] .nn-nav-toggle-icon-close {
  display: block;
}

.nn-mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 38, 71, 0.45);
  z-index: 40;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.nn-mobile-nav-backdrop[hidden] {
  display: none;
}

.nn-mobile-nav-backdrop.is-open {
  opacity: 1;
}

.nn-mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 85vw);
  background: var(--paper);
  z-index: 50;
  box-shadow: var(--shadow-lg, 0 24px 48px -20px rgba(15, 38, 71, 0.35));
  transform: translateX(100%);
  transition: transform 0.25s ease;
  display: flex;
  flex-direction: column;
  padding: 16px 20px 24px;
  overflow-y: auto;
}

.nn-mobile-nav.is-open {
  transform: translateX(0);
}

.nn-mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.nn-mobile-link {
  display: block;
  padding: 14px 4px;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}

.nn-mobile-link.is-active {
  font-weight: 700;
  color: var(--navy);
}

.nn-mobile-actions {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.nn-mobile-actions a {
  text-align: center;
}

@media (max-width: 860px) {
  .nn-nav-toggle {
    display: inline-flex;
  }

  .nn-portal-login-link {
    display: none;
  }

  .nn-desktop-nav {
    display: none !important;
  }
}

@media (min-width: 861px) {
  .nn-mobile-nav,
  .nn-mobile-nav-backdrop {
    display: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nn-mobile-nav,
  .nn-mobile-nav-backdrop {
    transition: none;
  }
}