/* ============================================================
   NAV + FOOTER STYLES
   (Appended to design-system.css via separate file import)
   ============================================================ */

/* ── Site Nav ── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: box-shadow var(--transition-base), background var(--transition-base), border-color var(--transition-base);
}
.site-nav--scrolled { box-shadow: var(--shadow-nav); }

/* Logo swapping based on scroll states */
.site-nav__logo .logo-dark { display: block; }
.site-nav__logo .logo-white { display: none; }

/* Transparent header overlay */
.has-transparent-nav .site-nav {
  background: transparent;
  border-bottom-color: transparent;
}
.has-transparent-nav .site-nav--scrolled {
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
}
.has-transparent-nav .site-nav:not(.site-nav--scrolled) .logo-dark { display: none; }
.has-transparent-nav .site-nav:not(.site-nav--scrolled) .logo-white { display: block; }

.has-transparent-nav .site-nav:not(.site-nav--scrolled) .site-nav__link {
  color: rgba(255, 255, 255, 0.9);
}
.has-transparent-nav .site-nav:not(.site-nav--scrolled) .site-nav__link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}
.has-transparent-nav .site-nav:not(.site-nav--scrolled) .site-nav__link.is-active {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.15);
}
.has-transparent-nav .site-nav:not(.site-nav--scrolled) .nav-toggle {
  color: #ffffff;
}
.has-transparent-nav .site-nav:not(.site-nav--scrolled) .nav-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.has-transparent-nav .page-body {
  padding-top: 0 !important;
}

.site-nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
@media (min-width: 1024px) {
  .site-nav__inner { padding: 0 80px; }
}

.site-nav__logo img { height: 36px; width: auto; }

/* Desktop links */
.site-nav__links {
  display: none;
  align-items: center;
  gap: 4px;
}
@media (min-width: 1024px) {
  .site-nav__links { display: flex; }
}

.site-nav__link {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-primary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-base), background var(--transition-base);
  position: relative;
}
.site-nav__link:hover { color: var(--color-electric); }
.site-nav__link.is-active { color: var(--color-brand); font-weight: 600; }

/* Dropdown */
.nav-dropdown-trigger { cursor: pointer; user-select: none; }
.nav-dropdown-trigger .chevron {
  display: inline-block;
  margin-left: 4px;
  font-size: 10px;
  transition: transform var(--transition-base);
}
.nav-dropdown-wrapper {
  position: relative;
}
.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  min-width: 280px;
  background: var(--color-bg-card);
  border-radius: 4px;
  box-shadow: var(--shadow-dropdown);
  border: 1px solid var(--color-border);
  padding: 8px 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base), background var(--transition-base), border-color var(--transition-base);
  z-index: 100;
}
.nav-dropdown.dropdown-open {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown a {
  display: block;
  padding: 10px 20px;
  font-size: 14px;
  color: var(--color-text-primary);
  transition: background var(--transition-base), color var(--transition-base);
}
.nav-dropdown a:hover { background: var(--color-bg-section); color: var(--color-brand); }

/* Nav right layout */
.site-nav__right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.site-nav__actions {
  display: none;
  align-items: center;
  gap: 12px;
}
@media (min-width: 1024px) {
  .site-nav__actions { display: flex; }
}

.nav-portal-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-primary);
  transition: color var(--transition-base);
}
.nav-portal-link:hover { color: var(--color-electric); }



/* Hamburger */
.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  transition: background var(--transition-base);
}
.nav-toggle:hover { background: var(--color-bg-section); }
@media (min-width: 1024px) { .nav-toggle { display: none; } }

/* Mobile overlay */
.nav-mobile-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-navy);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}
body.nav-open .nav-mobile-overlay { transform: translateX(0); }
.nav-mobile-overlay .nav-mobile-close {
  position: absolute;
  top: 16px;
  right: 20px;
  color: #fff;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
}
.nav-mobile-overlay a {
  font-size: 24px;
  font-weight: 600;
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  transition: background var(--transition-base);
}
.nav-mobile-overlay a:hover { background: rgba(255,255,255,0.1); }
.nav-mobile-overlay .mobile-enroll {
  margin-top: 24px;
  background: var(--color-brand);
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
}
.nav-mobile-overlay .mobile-enroll:hover { background: #0D3D8A; }

/* ── Footer ── */
.site-footer {
  background: var(--color-navy);
  color: var(--color-text-on-dark);
  padding: var(--space-2xl) 0 0;
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}
@media (min-width: 768px) {
  .site-footer__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .site-footer__grid { grid-template-columns: 2fr 1fr 1fr 2fr; gap: 40px; }
}

.site-footer__logo { height: 36px; width: auto; margin-bottom: 16px; }
.site-footer__tagline { font-size: 14px; opacity: 0.7; line-height: 1.6; max-width: 260px; margin-bottom: 20px; }
.site-footer__social { display: flex; gap: 12px; }
.site-footer__social a {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.7);
  transition: border-color var(--transition-base), color var(--transition-base), background var(--transition-base);
}
.site-footer__social a:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,0.1); }
.site-footer__social svg { width: 16px; height: 16px; fill: currentColor; }

.site-footer__col-title {
  font-size: 13px;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.5);
  margin-bottom: 16px;
}
.site-footer__links { display: flex; flex-direction: column; gap: 10px; }
.site-footer__links a {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  transition: color var(--transition-base);
}
.site-footer__links a:hover { color: #fff; }

.site-footer__newsletter-body { font-size: 14px; opacity: 0.7; margin-bottom: 16px; line-height: 1.6; }
.footer-newsletter-form {
  display: flex !important;
  flex-direction: column !important;
  gap: 12px !important;
  width: 100% !important;
  max-width: none !important;
  margin: 0 !important;
  flex-wrap: nowrap !important;
}
.footer-newsletter-form .form-input {
  display: block !important;
  width: 100% !important;
  max-width: none !important;
  min-width: 0 !important;
  flex: none !important;
  height: 48px !important;
  background: rgba(255,255,255,0.06) !important;
  border: 1px solid rgba(255,255,255,0.2) !important;
  border-radius: 8px !important;
  color: #fff !important;
  padding: 0 16px !important;
  font-size: 15px !important;
  outline: none !important;
  box-sizing: border-box !important;
  transition: border-color var(--transition-base), background-color var(--transition-base), box-shadow var(--transition-base);
}
.footer-newsletter-form .form-input::placeholder {
  color: rgba(255,255,255,0.55) !important;
}
.footer-newsletter-form .form-input:focus {
  border-color: rgba(255,255,255,0.55) !important;
  background: rgba(255,255,255,0.1) !important;
  box-shadow: 0 0 0 3px rgba(255,255,255,0.05) !important;
}
.footer-newsletter-form .btn-primary {
  width: 100% !important;
  height: 48px !important;
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  box-sizing: border-box !important;
}

.site-footer__bottom {
  margin-top: var(--space-2xl);
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: var(--space-md) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.site-footer__copyright { font-size: 13px; color: rgba(255,255,255,0.5); }
.site-footer__legal { display: flex; gap: 20px; flex-wrap: wrap; }
.site-footer__legal a { font-size: 13px; color: rgba(255,255,255,0.5); transition: color var(--transition-base); }
.site-footer__legal a:hover { color: #fff; }

/* ── Page body offset for fixed nav ── */
.page-body { padding-top: 64px; }