/* ==========================================================================
   Shared site navigation: header + footer
   Included by all WRL subdomains (www, docs, api/ui).
   Uses design system tokens from design-system.css.
   ========================================================================== */

/* tva */

/* --------------------------------------------------------------------------
   Site header
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 56px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-4);
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}

.site-header__logo img {
  width: 28px;
  height: 28px;
}

.site-header__wordmark {
  font-size: var(--text-md);
  font-weight: var(--weight-bold);
  letter-spacing: -0.01em;
  color: var(--color-primary);
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex-wrap: wrap;
}

/* Navigation links (not buttons) */
.site-header__nav a:not(.btn) {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  text-decoration: none;
  border-radius: var(--radius-md);
  white-space: nowrap;
}

.site-header__nav a:not(.btn):hover {
  color: var(--color-text);
  background: var(--color-surface-muted);
}

.site-header__nav a:not(.btn):focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Subtle active/current indicator for cross-subdomain nav */
.site-header__nav a[aria-current="page"],
.site-header__nav a[data-active] {
  color: var(--color-text);
  background: var(--color-surface-muted);
}

/* Sign-in button visited state */
.site-header__nav .btn--primary:visited {
  color: var(--color-primary-text);
}

/* Sign-in/out button sizing */
.site-header__nav .btn--sm {
  min-height: 36px;
  padding: var(--space-1) var(--space-4);
  font-size: var(--text-sm);
}

/* Username display */
.site-header__username {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
}

/* --------------------------------------------------------------------------
   Site footer
   -------------------------------------------------------------------------- */

.site-footer {
  background: var(--color-primary);
  color: var(--color-primary-text);
  padding: 4rem 0 2rem;
}

.site-footer .container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.site-footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.site-footer__brand img {
  width: 28px;
  height: 28px;
}

.site-footer__wordmark {
  font-size: var(--text-md);
  font-weight: var(--weight-bold);
  letter-spacing: -0.01em;
  color: var(--color-primary-text);
}

.site-footer__tagline {
  margin: var(--space-3) 0 0;
  font-size: var(--text-sm);
  color: rgba(248, 248, 250, 0.7);
}

.site-footer nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.site-footer nav a {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: rgba(248, 248, 250, 0.8);
  text-decoration: none;
  border-radius: var(--radius-md);
}

.site-footer nav a:hover {
  color: var(--color-primary-text);
  background: rgba(248, 248, 250, 0.1);
}

.site-footer nav a:focus-visible {
  outline: 2px solid var(--color-primary-text);
  outline-offset: 2px;
}

.site-footer__bottom {
  padding-top: var(--space-6);
  border-top: 1px solid rgba(248, 248, 250, 0.15);
  font-size: var(--text-sm);
  color: rgba(248, 248, 250, 0.6);
}

.site-footer__links {
  display: flex;
  gap: 3rem;
}

.site-footer__heading {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(248, 248, 250, 0.5);
  margin: 0 0 var(--space-3);
}

.site-footer__operator {
  font-size: var(--text-sm);
  color: rgba(248, 248, 250, 0.6);
  margin: 0 0 var(--space-2);
}

.site-footer__operator a {
  color: rgba(248, 248, 250, 0.7);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.site-footer__operator a:hover {
  color: var(--color-primary-text);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 767px) {
  .site-header__wordmark {
    display: none;
  }

  .site-header .container {
    padding: 0 var(--space-4);
  }

  .site-footer .container {
    padding: 0 var(--space-4);
  }

  .site-footer__links {
    flex-direction: column;
    gap: 2rem;
  }
}

@media (min-width: 768px) {
  .site-footer__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }

  .site-footer__brand {
    flex-direction: column;
    align-items: flex-start;
  }
}