.sp-skip-link {
  position: absolute;
  top: -100%;
  left: var(--sp-space-sm);
  padding: var(--sp-space-sm) var(--sp-space-md);
  background: var(--sp-color-primary);
  color: var(--sp-color-text-on-primary);
  border-radius: 0 0 var(--sp-radius-sm) var(--sp-radius-sm);
  z-index: var(--sp-z-toast, 9999);
  text-decoration: none;
  font-weight: 600;
  transition: top var(--sp-transition-fast);
}
.sp-skip-link:focus-visible {
  top: 0;
}

.logo-dark { display: none; }
[data-theme="dark"] .logo-light { display: none; }
[data-theme="dark"] .logo-dark { display: block; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--sp-header-height);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--sp-color-border);
  box-shadow: var(--sp-shadow-sm);
  z-index: var(--sp-z-navigation);
}

.site-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 var(--sp-space-lg);
}


.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-svg {
  height: 36px;
  width: auto;
}


.logo-container {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--sp-space-xs);
}

.logo-badges {
  display: flex;
  align-items: center;
  gap: var(--sp-space-sm);
  margin-left: var(--sp-space-xs);
}

.badge {
  display: inline-flex;
  align-items: center;
  height: 18px;
  font-size: 0.65rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-decoration: none;
  border-radius: var(--sp-radius-xs);
  transition: opacity var(--sp-transition-fast);
}

.badge-version {
  opacity: 0.9;
}

.badge-version:hover {
  opacity: 1;
}

.badge-version img {
  height: 18px;
  display: block;
}

.badge-early-access {
  padding: var(--sp-space-xs) var(--sp-space-sm);
  background: var(--sp-brand-50);
  color: var(--sp-color-primary-hover);
  border: 1px solid var(--sp-brand-200);
  font-family: var(--sp-font-brand);
  font-weight: 500;
}


.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-space-xl);
}

.nav-links a {
  color: var(--sp-color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--sp-transition-fast);
}

.nav-links a:hover {
  color: var(--sp-color-text);
}

.nav-links a.nav-link--active {
  color: var(--sp-color-primary);
}


a.cta-button,
button.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-space-sm) var(--sp-space-lg);
  background: var(--sp-color-primary);
  color: var(--sp-color-text-on-primary);
  font-family: var(--sp-font-brand);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-decoration: none;
  border-radius: var(--sp-radius-sm);
  border: 0;
  cursor: pointer;
  transition: background-color var(--sp-transition-fast), transform var(--sp-transition-fast), box-shadow var(--sp-transition-fast);
}

a.cta-button:hover,
button.cta-button:hover {
  background: var(--sp-color-primary-hover);
  color: var(--sp-color-text-on-primary);
  transform: translateY(-1px);
  box-shadow: var(--sp-shadow-md);
}


@media (max-width: 480px) {
  .logo-svg {
    height: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-links a,
  a.cta-button,
  button.cta-button {
    transition: none;
  }
  a.cta-button:hover,
  button.cta-button:hover {
    transform: none;
  }
}