/* ============================================
   NAVIGATION
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 15, 26, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: all var(--transition-base);
}

[data-theme='light'] .site-header {
  background: rgba(250, 250, 250, 0.92);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 5vw, var(--space-12));
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo svg {
  flex-shrink: 0;
}

.nav-logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1rem, 0.9rem + 0.4vw, 1.2rem);
  line-height: 1.1;
  color: white;
}

[data-theme='light'] .nav-logo-text {
  color: var(--color-navy);
}

.nav-logo-text span {
  display: block;
  font-size: 0.65em;
  font-weight: 500;
  opacity: 0.7;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-links a {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  font-family: var(--font-display);
  color: rgba(255,255,255,0.8);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  letter-spacing: 0.01em;
}

[data-theme='light'] .nav-links a {
  color: var(--color-text-muted);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-gold);
  background: rgba(245,166,35,0.1);
}

/* Nav actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.7);
  border: 1px solid rgba(255,255,255,0.1);
  cursor: pointer;
  transition: all var(--transition-fast);
}

[data-theme='light'] .theme-toggle {
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.theme-toggle:hover {
  background: rgba(245,166,35,0.15);
  color: var(--color-gold);
  border-color: rgba(245,166,35,0.3);
}

/* Mobile hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  cursor: pointer;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  transition: all var(--transition-fast);
}

.nav-hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: white;
  border-radius: 2px;
  transition: all var(--transition-base);
}

[data-theme='light'] .nav-hamburger span {
  background: var(--color-text);
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    inset: 72px 0 0 0;
    background: #0A0F1A;
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-6) var(--space-5);
    gap: var(--space-2);
    z-index: 99;
    border-top: 1px solid rgba(255,255,255,0.06);
  }

  [data-theme='light'] .nav-links {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: var(--space-4) var(--space-4);
    font-size: var(--text-base);
    border-radius: var(--radius-lg);
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-cta {
    display: none;
  }
}

/* Footer */
.site-footer {
  background: var(--color-navy);
  color: rgba(255,255,255,0.8);
  padding-block: var(--space-16) var(--space-8);
}

[data-theme='dark'] .site-footer {
  background: #060A12;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer-brand p {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  line-height: 1.7;
  opacity: 0.7;
  max-width: 280px;
}

.footer-heading {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-5);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: var(--text-sm);
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.footer-links a:hover {
  opacity: 1;
  color: var(--color-gold);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  opacity: 0.8;
  margin-bottom: var(--space-4);
  line-height: 1.5;
}

.footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-gold);
}

.footer-bottom {
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: var(--text-xs);
  opacity: 0.5;
  max-width: none;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* Official logo image */
.nav-logo-img {
  height: 52px;
  width: auto;
  display: block;
  object-fit: contain;
}

/* In light mode, swap to navy version via filter or use the navy image */
[data-theme='light'] .nav-logo-img.logo-dark {
  display: none;
}
[data-theme='light'] .nav-logo-img.logo-light {
  display: block;
}
[data-theme='dark'] .nav-logo-img.logo-dark,
:not([data-theme]) .nav-logo-img.logo-dark {
  display: block;
}
[data-theme='dark'] .nav-logo-img.logo-light,
:not([data-theme]) .nav-logo-img.logo-light {
  display: none;
}

.footer-logo-img {
  height: 56px;
  width: auto;
  display: block;
  object-fit: contain;
  margin-bottom: var(--space-4);
}