/* ============================================================
   AEVUM TRANSFORM — NAV
   5-item: Frameworks | Resilience | Locations | Intel | CTA
   ============================================================ */

.uc-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  height: var(--nav-h);
  background: var(--brand-nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(245,245,220,.08);
  transition: background var(--dur-base) var(--ease-out);
}

.uc-nav__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-6);
}

/* ── Logo ───────────────────────────────────────────────────── */
.uc-nav__logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  text-decoration: none;
  flex-shrink: 0;
}
.uc-nav__logo-mark {
  width: 36px; height: 36px;
  background: var(--brand-700);
  border: 1.5px solid var(--brand-500);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-parchment);
  letter-spacing: -0.03em;
  font-family: var(--font-serif);
}
.uc-nav__logo-text {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-parchment);
  letter-spacing: 0.01em;
  line-height: 1.2;
  font-family: var(--font-sans);
}
.uc-nav__logo-sub {
  font-size: 10px;
  font-weight: 500;
  color: rgba(245,245,220,.45);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--font-sans);
}

/* ── Desktop Nav Links ──────────────────────────────────────── */
.uc-nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  flex: 1;
}

.uc-nav__item { position: relative; }

.uc-nav__link {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: rgba(245,245,220,.8);
  text-decoration: none;
  white-space: nowrap;
  font-family: var(--font-sans);
  transition: color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}
.uc-nav__link:hover,
.uc-nav__link[aria-expanded="true"] {
  color: var(--color-parchment);
  background: rgba(245,245,220,.08);
}
.uc-nav__link svg {
  width: 14px; height: 14px;
  transition: transform var(--dur-base) var(--ease-out);
  opacity: .6;
}
.uc-nav__link[aria-expanded="true"] svg { transform: rotate(180deg); }

/* ── Dropdown ───────────────────────────────────────────────── */
.uc-nav__dropdown {
  position: absolute;
  top: calc(100% + var(--sp-2));
  left: 0;
  min-width: 240px;
  background: var(--brand-900);
  border: 1px solid rgba(245,245,220,.1);
  border-radius: var(--radius-lg);
  padding: var(--sp-2);
  box-shadow: 0 8px 32px rgba(0,0,0,.5);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--dur-base) var(--ease-out),
              visibility var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out);
}
.uc-nav__item:hover .uc-nav__dropdown,
.uc-nav__item:focus-within .uc-nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Wider dropdown for Locations (2-col grid) */
.uc-nav__dropdown--wide {
  min-width: 360px;
}
.uc-nav__dropdown--wide .uc-nav__dropdown-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.uc-nav__dropdown-link {
  display: block;
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: rgba(245,245,220,.7);
  text-decoration: none;
  font-family: var(--font-sans);
  transition: color var(--dur-fast), background var(--dur-fast);
}
.uc-nav__dropdown-link strong {
  display: block;
  color: var(--color-parchment);
  font-weight: 700;
  margin-bottom: 1px;
}
.uc-nav__dropdown-link span {
  display: block;
  font-size: var(--text-xs);
  color: rgba(245,245,220,.4);
}
.uc-nav__dropdown-link:hover {
  background: rgba(245,245,220,.07);
  color: var(--color-parchment);
}

/* Dropdown section label */
.uc-nav__dropdown-section {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(245,245,220,.3);
  padding: var(--sp-3) var(--sp-3) var(--sp-1);
  margin-top: var(--sp-1);
}
.uc-nav__dropdown-section:first-child { margin-top: 0; }

/* Divider inside dropdown */
.uc-nav__dropdown-divider {
  height: 1px;
  background: rgba(245,245,220,.08);
  margin: var(--sp-2) var(--sp-3);
}

/* ── Right CTA ──────────────────────────────────────────────── */
.uc-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
}

/* Stealth mode toggle button */
.uc-nav__stealth {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  color: rgba(245,245,220,.5);
  background: transparent;
  border: 1px solid rgba(245,245,220,.12);
  cursor: pointer;
  font-size: 14px;
  transition: all var(--dur-fast);
  flex-shrink: 0;
}
.uc-nav__stealth:hover {
  color: var(--color-parchment);
  background: rgba(245,245,220,.08);
  border-color: rgba(245,245,220,.25);
}

/* ── Mobile Toggle ──────────────────────────────────────────── */
.uc-nav__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  color: var(--color-parchment);
  background: transparent;
  transition: background var(--dur-fast);
}
.uc-nav__toggle:hover { background: rgba(245,245,220,.1); }
.uc-nav__toggle svg { width: 22px; height: 22px; }

/* ── Mobile Menu ────────────────────────────────────────────── */
.uc-nav__mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-h);
  inset-inline: 0;
  background: var(--brand-950);
  border-top: 1px solid rgba(245,245,220,.08);
  padding: var(--sp-6) var(--sp-4);
  overflow-y: auto;
  max-height: calc(100vh - var(--nav-h));
}
.uc-nav.is-open .uc-nav__mobile-menu { display: block; }

.uc-nav__mobile-section { margin-bottom: var(--sp-6); }

.uc-nav__mobile-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(245,245,220,.35);
  margin-bottom: var(--sp-2);
  padding-inline: var(--sp-3);
  font-family: var(--font-sans);
}

.uc-nav__mobile-link {
  display: block;
  padding: var(--sp-3);
  border-radius: var(--radius-sm);
  font-size: var(--text-base);
  color: rgba(245,245,220,.8);
  text-decoration: none;
  font-family: var(--font-sans);
  transition: background var(--dur-fast);
}
.uc-nav__mobile-link:hover {
  background: rgba(245,245,220,.07);
  color: var(--color-parchment);
}

.uc-nav__mobile-cities {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.uc-nav__mobile-cta {
  margin-top: var(--sp-6);
  padding-top: var(--sp-6);
  border-top: 1px solid rgba(245,245,220,.08);
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 960px) {
  .uc-nav__links { display: none; }
  .uc-nav__actions .btn { display: none; }
  .uc-nav__actions .uc-nav__stealth { display: none; }
  .uc-nav__toggle { display: flex; }
}