.sp-skip-link {
  position: absolute;
  top: -100%;
  left: var(--sp-space-2);
  padding: var(--sp-space-2) var(--sp-space-4);
  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);
  text-decoration: none;
  font-weight: var(--sp-font-bold);
  transition: top var(--sp-duration-fast) var(--sp-ease-default);
}
.sp-skip-link:focus-visible {
  top: 0;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--sp-header-height);
  background: var(--sp-color-header-bg);
  backdrop-filter: blur(var(--sp-space-5));
  -webkit-backdrop-filter: blur(var(--sp-space-5));
  border-bottom: 1px solid var(--sp-color-header-border);
  box-shadow: var(--sp-shadow-sm);
  z-index: var(--sp-z-header);
  transition:
    background-color var(--sp-duration-normal) var(--sp-ease-out),
    border-color var(--sp-duration-normal) var(--sp-ease-out),
    box-shadow var(--sp-duration-normal) var(--sp-ease-out);
}

.site-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 var(--sp-space-6);
}

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

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

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

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-space-8);
}

.nav-links a {
  color: var(--sp-color-text-secondary);
  text-decoration: none;
  font-family: var(--sp-font-brand);
  font-weight: var(--sp-font-medium);
  font-size: var(--sp-text-md);
  transition: color var(--sp-duration-fast) var(--sp-ease-default);
}

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

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

a.cta-button,
button.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem var(--sp-space-5);
  background: var(--sp-color-primary);
  color: var(--sp-primitive-warm-900);
  font-family: var(--sp-font-brand);
  font-size: var(--sp-text-sm);
  font-weight: var(--sp-font-bold);
  text-transform: uppercase;
  letter-spacing: var(--sp-tracking-wide);
  text-decoration: none;
  border: 0;
  cursor: pointer;
  border-radius: var(--sp-radius-sm);
  transition:
    background-color var(--sp-duration-fast) var(--sp-ease-out),
    transform var(--sp-duration-fast) var(--sp-ease-out),
    box-shadow var(--sp-duration-fast) var(--sp-ease-out);
}

a.cta-button:hover,
button.cta-button:hover {
  background: var(--sp-color-primary-hover);
  color: var(--sp-primitive-warm-900);
  transform: translateY(-1px);
  box-shadow: var(--sp-shadow-accent-sm);
}

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

html:not([data-scrolled]) body.has-video-hero .site-header {
  border-bottom-color: transparent;
  box-shadow: none;
}

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

/* ── Download nav items: OS glyph before the label ──────────────────────────
   The header partial emits no per-item classes, so the glyphs key off the
   href. Keep these in lockstep with services/web/config/navigation.yaml and
   the --os-glyph masks in homepage-hero.css. */
.nav-links a[href^="/documentation/download-"] {
  display: inline-flex;
  align-items: center;
  padding: 0.35em 0.9em;
  border-radius: 999px;
  background: oklch(1 0 0 / 0.1);
  border: 1px solid oklch(1 0 0 / 0.18);
  transition: background 150ms ease, border-color 150ms ease;
}

.nav-links a[href^="/documentation/download-"]:hover {
  background: oklch(1 0 0 / 0.18);
  border-color: oklch(1 0 0 / 0.4);
}

.nav-links a[href^="/documentation/download-"]::before {
  content: "";
  display: inline-block;
  width: 1em;
  height: 1em;
  margin-right: 0.4em;
  vertical-align: -0.12em;
  background-color: currentColor;
  -webkit-mask: var(--os-glyph) center / contain no-repeat;
  mask: var(--os-glyph) center / contain no-repeat;
}

.nav-links a[href="/documentation/download-macos"] {
  --os-glyph: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M16.36 12.76c-.02-2.05 1.68-3.03 1.75-3.08-.95-1.39-2.43-1.58-2.96-1.6-1.26-.13-2.46.74-3.1.74-.64 0-1.63-.72-2.68-.7-1.38.02-2.65.8-3.36 2.03-1.43 2.48-.37 6.15 1.03 8.16.68.99 1.49 2.1 2.56 2.06 1.03-.04 1.42-.66 2.66-.66 1.24 0 1.59.66 2.68.64 1.11-.02 1.81-1 2.48-1.99.78-1.14 1.1-2.24 1.12-2.3-.02-.01-2.15-.82-2.18-3.3zM14.32 6.7c.57-.69.95-1.65.85-2.6-.82.03-1.8.54-2.39 1.23-.52.61-.98 1.58-.86 2.51.91.07 1.84-.46 2.4-1.14z'/%3E%3C/svg%3E");
}

.nav-links a[href="/documentation/download-windows"] {
  --os-glyph: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 5.5 10.5 4.4v7.1H3V5.5zm0 13 7.5 1.1v-7H3v5.9zm8.5 1.2L21 21V12.5h-9.5v7.2zm0-15.4v7.2H21V3l-9.5 1.3z'/%3E%3C/svg%3E");
}

.nav-links a[href="/documentation/download-linux"] {
  --os-glyph: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 4a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2v16a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V4zm2 .5v15h14v-15H5zm2.2 3.3 4.2 4.2-4.2 4.2 1.4 1.4 5.6-5.6-5.6-5.6-1.4 1.4zM12 16h5v2h-5v-2z'/%3E%3C/svg%3E");
}