/* Layout: Header, Footer, Main */

.site-layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
}

.skip-link {
  position: absolute;
  top: -9999px;
  left: 1rem;
  background: var(--color-accent);
  color: white;
  padding: 0.5rem 1rem;
  z-index: 100;
  border-radius: 0 0 0.5rem 0.5rem;
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  top: 0;
}

.site-content {
  flex: 1;
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing-xl);
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.logo-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.site-nav {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.site-nav a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-accent);
}

/* Responsive Nav */
@media (max-width: 640px) {
  .header-inner {
    flex-direction: column;
    align-items: stretch;
  }
  .site-nav {
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm) var(--spacing-md);
  }
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  text-align: center; 
}

@media (min-width: 640px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-nav {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
}