/* ==========================================================================
   Site Nav — shared navbar component
   Two variants: "landing" (floating pill) and "docs" (full-width bar)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Base (shared)
   -------------------------------------------------------------------------- */
.site-nav {
  position: fixed;
  z-index: 100;
  padding: 0;
  transition: border-radius 0.3s ease;
}

.site-nav-bar {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.site-nav-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.site-nav-logo {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.site-nav-logo img { display: block; }

.site-nav-right {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav-link {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: var(--docs-fg-secondary, #5c5959);
  text-decoration: none;
  transition: color 150ms ease;
}

.site-nav-link:hover {
  color: var(--docs-fg-primary, #262323);
  text-decoration: none;
}

.site-nav-cta,
.site-nav-expand-cta,
.site-nav-cta:link,
.site-nav-expand-cta:link,
.site-nav-cta:visited,
.site-nav-expand-cta:visited {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 24px;
  border: 0;
  border-radius: 999px;
  background: var(--docs-brand, #0ba5ec);
  color: #ffffff;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  line-height: 20px;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 150ms ease;
}

.site-nav-cta:hover,
.site-nav-expand-cta:hover {
  background: var(--docs-brand-emph, #0876a8);
  color: #ffffff;
  text-decoration: none;
}

.site-nav-toggle { display: none; cursor: pointer; background: none; border: none; color: var(--docs-fg-primary); }
.site-nav-icon-close { display: none; }

/* Expand content (collapses via grid) */
.site-nav-expand {
  display: grid;
  grid-template-rows: 0fr;
  width: 100%;
}

.site-nav-expand-inner {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.site-nav-expand-link {
  display: flex;
  align-items: center;
  height: 44px;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  line-height: 20px;
  color: var(--docs-fg-secondary, #5c5959);
  text-decoration: none;
}
.site-nav-expand-link:hover { color: var(--docs-fg-primary); text-decoration: none; }

.site-nav-expand-cta {
  width: 100%;
  display: flex;
  justify-content: center;
  box-sizing: border-box;
}

/* --------------------------------------------------------------------------
   2. Landing variant (floating pill, glassmorphism)
   -------------------------------------------------------------------------- */
.site-nav--landing {
  top: 12px;
  left: 50%;
  right: auto;
  transform: translateX(-50%);
  width: 584px;
  min-width: 584px;
  border-radius: 999px;
  background: rgba(245, 245, 242, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--docs-border-secondary, #dedddc);
}

.site-nav--landing .site-nav-bar-inner {
  padding: 8px 8px 8px 16px;
}

.site-nav--landing .site-nav-link { font-weight: 600; }

.legal-page .site-nav--landing {
  background: rgba(245, 245, 242, 0.75);
  border-color: rgba(38, 35, 35, 0.14);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.7),
    0 2px 10px rgba(38, 35, 35, 0.08);
}

/* Landing mobile */
@media (max-width: 640px) {
  .site-nav--landing {
    width: calc(100% - 40px);
    min-width: 0;
    top: 8px;
  }

  .site-nav--landing .site-nav-bar-inner {
    padding: 8px 16px;
  }

  .site-nav--landing .site-nav-links,
  .site-nav--landing .site-nav-right > .site-nav-cta {
    display: none;
  }

  .site-nav--landing .site-nav-toggle { display: flex; }

  /* Expand: smooth grid-row reveal */
  .site-nav--landing .site-nav-expand {
    transition: grid-template-rows 0.3s ease;
    padding: 0 16px;
  }

  /* Expanded */
  .site-nav--landing.is-expanded {
    border-radius: 32px;
  }
  .site-nav--landing.is-expanded .site-nav-icon-open { display: none; }
  .site-nav--landing.is-expanded .site-nav-icon-close { display: inline; }
  .site-nav--landing.is-expanded .site-nav-expand {
    grid-template-rows: 1fr;
    padding-bottom: 16px;
  }
}

/* --------------------------------------------------------------------------
   3. Docs variant (full-width bar)
   -------------------------------------------------------------------------- */
.site-nav--docs {
  top: 0;
  left: 0;
  right: 0;
  background: var(--docs-bg-primary, #f5f5f2);
  border-bottom: 1px solid var(--docs-border-secondary, #dedddc);
}

.site-nav--docs .site-nav-bar {
  max-width: 92rem;
  margin: 0 auto;
  width: 100%;
}

.site-nav--docs .site-nav-bar-inner {
  padding: 0 48px;
  height: 72px;
  border-bottom: 1px solid var(--docs-border-secondary, #dedddc);
}

.site-nav--docs .site-nav-links { gap: 16px; }
.site-nav--docs .site-nav-right { gap: 16px; }
.site-nav--docs .site-nav-link { font-weight: 400; }
.site-nav--docs .site-nav-right { gap: 16px; }

/* Docs CTA uses same dark pill as landing (via .docs-btn-primary) */

/* Docs mobile */
@media (max-width: 1023px) {
  .site-nav--docs .site-nav-bar-inner {
    padding: 0 16px;
    height: 56px;
    border-bottom: none;
  }

  .site-nav--docs .site-nav-links,
  .site-nav--docs .site-nav-right > .site-nav-cta {
    display: none;
  }

  .site-nav--docs .site-nav-toggle { display: flex; }

  .site-nav--docs .site-nav-expand {
    transition: grid-template-rows 0.3s ease;
    padding: 0 16px 0;
  }

  /* Expanded */
  .site-nav--docs.is-expanded .site-nav-icon-open { display: none; }
  .site-nav--docs.is-expanded .site-nav-icon-close { display: inline; }
  .site-nav--docs.is-expanded .site-nav-expand {
    grid-template-rows: 1fr;
    padding-bottom: 16px;
  }
}

/* --------------------------------------------------------------------------
   4. Reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .site-nav { transition: none; }
}

/* --------------------------------------------------------------------------
   5. Dark mode
   -------------------------------------------------------------------------- */
html[data-theme="dark"] .site-nav--landing {
  background: rgba(22, 20, 20, 0.75);
  border-color: var(--docs-border-secondary);
}

html[data-theme="dark"] .site-nav--landing .site-nav-logo img {
  filter: brightness(0) invert(1);
}

html[data-theme="dark"] .site-nav--docs {
  background: var(--docs-bg-primary);
  border-color: var(--docs-border-secondary);
}

html[data-theme="dark"] .site-nav--docs .site-nav-logo img {
  filter: brightness(0) invert(1);
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) .site-nav--landing {
    background: rgba(22, 20, 20, 0.75);
    border-color: var(--docs-border-secondary);
  }
  html:not([data-theme="light"]) .site-nav--landing .site-nav-logo img {
    filter: brightness(0) invert(1);
  }
  html:not([data-theme="light"]) .site-nav--docs {
    background: var(--docs-bg-primary);
    border-color: var(--docs-border-secondary);
  }
  html:not([data-theme="light"]) .site-nav--docs .site-nav-logo img {
    filter: brightness(0) invert(1);
  }
}