/* Hide docsify's default repo corner and sidebar name */
.github-corner {
  display: none !important;
}

.sidebar > h1,
.sidebar > .app-name {
  display: none !important;
}

/* Sidebar toggle button - hide default docsify toggle */
.sidebar-toggle {
  display: none !important;
}

/* Custom hamburger menu button for mobile */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--base-color);
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.mobile-menu-toggle:hover {
  opacity: 1;
}

/* Mobile overlay when sidebar is open */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
}

.sidebar-overlay.visible {
  display: block;
}

/* Adjust sidebar for fixed titlebar */
.sidebar {
  padding-top: 52px !important;
  position: relative;
  transition: width 0.2s ease;
}

/* Routes where the sidebar has nothing to list: the rail, its handle, and the
   button that opens it all go, and the page takes the width. */
body.sidebar-hidden .sidebar,
body.sidebar-hidden .sidebar-resize-handle,
body.sidebar-hidden .mobile-menu-toggle {
  display: none !important;
}

/* The theme indents the content by the rail's width (`.sidebar + .content`), and
   the rail is gone. */
body.sidebar-hidden .content {
  margin-left: 0 !important;
}

/* Sidebar resize handle */
.sidebar-resize-handle {
  position: fixed;
  top: 0;
  left: var(--sidebar-width);
  width: 4px;
  height: 100%;
  cursor: col-resize;
  background: transparent;
  transition: background 0.2s ease;
  z-index: 20;
}

.sidebar-resize-handle:hover,
.sidebar-resize-handle.dragging {
  background: var(--resize-handle-color);
}

/* Hide sidebar search (moved to titlebar) */
.sidebar .search {
  display: none !important;
}

/* Footer links (li.file at root level) */
.sidebar-nav > ul > li.file {
  padding-left: 0 !important;
}

.sidebar-nav > ul > li.file > a {
  font-weight: normal !important;
  padding-left: 15px !important;
}

/* ═══════════════════════════════════════════════════════
   Titlebar — frosted glass with gradient accent
   ═══════════════════════════════════════════════════════ */

.titlebar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--titlebar-bg);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  padding: 0 20px;
  height: 52px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.titlebar::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--titlebar-accent-start),
    var(--titlebar-accent-mid),
    var(--titlebar-accent-end)
  );
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.titlebar:hover::after {
  opacity: 0.85;
}

/* ── Brand ──────────────────────────────────────────── */

.titlebar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: inherit;
}

.titlebar-brand span {
  font-size: 16px;
  font-weight: 700;
  color: var(--base-color);
  letter-spacing: -0.01em;
  transition: color 0.2s ease;
}

.titlebar-brand:hover span {
  color: var(--brand-hover-color);
}

/* ── Breadcrumb ─────────────────────────────────────── */

.breadcrumb-separator {
  color: var(--titlebar-accent-mid);
  font-size: 16px;
  user-select: none;
  opacity: 0.5;
  font-weight: 300;
}

.breadcrumb-repo-selector {
  position: relative;
}

/* A project's ancestors from projects.yml, between the org and the repo. Plain
   links rather than the repo toggle's button chrome, so the current repo stays
   the emphasized node. */
.breadcrumb-ancestor {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted-color);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb-ancestor:hover {
  color: var(--base-color);
  text-decoration: none;
}

.breadcrumb-repo-icon {
  width: 16px;
  height: 16px;
  object-fit: contain;
}

.breadcrumb-repo-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--button-bg);
  border: 1px solid var(--button-border);
  border-radius: 8px;
  padding: 5px 12px;
  cursor: pointer;
  color: var(--base-color);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.breadcrumb-repo-toggle:hover {
  background: var(--button-bg-hover);
  border-color: var(--focus-border-color);
}

.breadcrumb-repo-toggle svg {
  opacity: 0.5;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.breadcrumb-repo-selector.open .breadcrumb-repo-toggle svg {
  transform: rotate(180deg);
}

.breadcrumb-repo-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 220px;
  white-space: nowrap;
  background: var(--sidebar-background);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  z-index: 1002;
  overflow-y: auto;
  max-height: calc(100vh - 80px);
  padding: 4px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border-subtle) transparent;
  /* Fade hint at the bottom when content overflows */
  background-image:
    linear-gradient(var(--sidebar-background) 30%, rgba(0,0,0,0)),
    linear-gradient(rgba(0,0,0,0), var(--sidebar-background) 70%) 0 100%,
    radial-gradient(farthest-side at 50% 0, rgba(0,0,0,0.18), rgba(0,0,0,0)),
    radial-gradient(farthest-side at 50% 100%, rgba(0,0,0,0.18), rgba(0,0,0,0)) 0 100%;
  background-repeat: no-repeat;
  background-color: var(--sidebar-background);
  background-size: 100% 24px, 100% 24px, 100% 10px, 100% 10px;
  background-attachment: local, local, scroll, scroll;
}

.breadcrumb-repo-dropdown::-webkit-scrollbar {
  width: 8px;
}

.breadcrumb-repo-dropdown::-webkit-scrollbar-track {
  background: transparent;
}

.breadcrumb-repo-dropdown::-webkit-scrollbar-thumb {
  background: var(--border-subtle);
  border-radius: 4px;
}

.breadcrumb-repo-dropdown::-webkit-scrollbar-thumb:hover {
  background: var(--color-comment);
}

.breadcrumb-repo-selector.open .breadcrumb-repo-dropdown {
  display: block;
  animation: dropdown-enter 0.2s ease;
}

@keyframes dropdown-enter {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.breadcrumb-repo-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  text-decoration: none;
  color: var(--base-color);
  font-size: 14px;
  transition: background 0.15s ease, color 0.15s ease;
}

.breadcrumb-repo-item:hover {
  background: var(--button-bg-hover);
  color: var(--hover-color);
}

.breadcrumb-repo-item .repo-icon {
  width: 20px;
  height: 20px;
  object-fit: contain;
  opacity: 0.8;
  flex-shrink: 0;
}

.breadcrumb-repo-item .repo-description {
  display: none;
}

/* Grouped dropdown */
.breadcrumb-repo-group { padding: 4px 0 6px; }

.breadcrumb-repo-group + .breadcrumb-repo-group {
  border-top: 1px solid var(--border-subtle);
  margin-top: 4px;
}

.breadcrumb-repo-group-label {
  font-family: ui-monospace, 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-comment);
  padding: 8px 14px 4px;
}

.breadcrumb-repo-item-nested {
  padding-left: 34px;
  font-size: 13px;
}

.breadcrumb-repo-item-nested .repo-icon {
  width: 16px;
  height: 16px;
}


.titlebar-site-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--base-color);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.titlebar-site-name:hover {
  color: var(--hover-color);
}

/* ── Spacer ─────────────────────────────────────────── */

.titlebar-spacer {
  flex: 1;
}

/* ── Actions ────────────────────────────────────────── */

.titlebar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ── Nav links ──────────────────────────────────────── */

.titlebar-nav-link {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 10px;
  border-radius: 8px;
  color: var(--muted-color);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease;
}

.titlebar-nav-link:hover {
  background: var(--button-bg);
  color: var(--base-color);
  text-decoration: none;
}

.titlebar-nav-link.active {
  background: var(--button-bg);
  color: var(--theme-color);
}

.titlebar-nav-link svg {
  opacity: 0.75;
}

/* ── Search ─────────────────────────────────────────── */

.titlebar-search {
  position: relative;
  display: flex;
  align-items: center;
}

.titlebar-search-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  background: var(--button-bg);
  border: 1px solid var(--button-border);
  border-radius: 8px;
  cursor: pointer;
  color: var(--muted-color);
  font-size: 13px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.titlebar-search-trigger:hover {
  background: var(--button-bg-hover);
  border-color: var(--focus-border-color);
  color: var(--base-color);
}

.titlebar-search-trigger svg {
  opacity: 0.6;
}

.search-hint {
  font-size: 13px;
}

.search-kbd {
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--kbd-bg);
  border: 1px solid var(--button-border);
  color: var(--muted-color);
  font-family: monospace;
  line-height: 1.5;
}

.titlebar-search.expanded .titlebar-search-trigger {
  display: none;
}

.titlebar-search-input {
  width: 0;
  padding: 0;
  border: 1px solid transparent;
  background: var(--button-bg);
  border-radius: 8px;
  color: var(--base-color);
  font-size: 14px;
  outline: none;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              padding 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.3s ease,
              border-color 0.2s ease;
  opacity: 0;
}

.titlebar-search-input:focus {
  border-color: var(--focus-border-color);
}

.titlebar-search-input::placeholder {
  color: var(--muted-color);
}

.titlebar-search.expanded .titlebar-search-input {
  width: 240px;
  padding: 6px 12px;
  opacity: 1;
}

.titlebar-search-results {
  position: absolute;
  top: 100%;
  right: 0;
  width: 380px;
  max-height: 420px;
  overflow-y: auto;
  background: var(--sidebar-background);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  display: none;
  margin-top: 8px;
  z-index: 1002;
}

.titlebar-search.has-results .titlebar-search-results {
  display: block;
  animation: dropdown-enter 0.2s ease;
}

.titlebar-search-result {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.15s ease;
}

.titlebar-search-result:hover,
.titlebar-search-result.selected {
  background: var(--button-bg-hover);
}

.titlebar-search-result.selected {
  outline: none;
}

.titlebar-search-result:last-child {
  border-bottom: none;
}

.titlebar-search-result-title {
  font-weight: 600;
  color: var(--base-color);
  margin-bottom: 4px;
}

.titlebar-search-result-content {
  font-size: 12px;
  color: var(--muted-color);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.titlebar-search-no-results {
  padding: 12px;
  color: var(--muted-color);
  text-align: center;
}

/* ── Theme toggle pill ──────────────────────────────── */

.theme-toggle {
  display: flex;
  align-items: center;
  position: relative;
  background: var(--toggle-bg);
  border-radius: 20px;
  padding: 3px;
  cursor: pointer;
  user-select: none;
  transition: background 0.2s ease;
}

.theme-toggle:hover {
  background: var(--toggle-bg-hover);
}

.theme-toggle-option {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  z-index: 1;
  position: relative;
  color: var(--toggle-inactive-color);
  transition: color 0.35s ease;
}

.theme-toggle-indicator {
  position: absolute;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--toggle-indicator);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  left: 3px;
  top: 3px;
}

.theme-toggle[data-scheme="light"] .theme-toggle-indicator {
  transform: translateX(0);
}

.theme-toggle[data-scheme="light"] .theme-toggle-sun {
  color: var(--toggle-active-color);
}

.theme-toggle[data-scheme="dark"] .theme-toggle-indicator {
  transform: translateX(26px);
}

.theme-toggle[data-scheme="dark"] .theme-toggle-moon {
  color: var(--toggle-active-color);
}

/* ── GitHub link ────────────────────────────────────── */

.titlebar-github {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--base-color);
  opacity: 0.6;
  transition: all 0.25s ease;
  border-radius: 6px;
}

.titlebar-github:hover {
  opacity: 1;
  color: var(--hover-color);
}

/* ── Entrance animation ─────────────────────────────── */

@keyframes titlebar-enter {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.titlebar > * {
  animation: titlebar-enter 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.titlebar > :nth-child(1) { animation-delay: 0s; }
.titlebar > :nth-child(2) { animation-delay: 0.04s; }
.titlebar > :nth-child(3) { animation-delay: 0.08s; }
.titlebar > :nth-child(4) { animation-delay: 0.12s; }
.titlebar > :nth-child(5) { animation-delay: 0.16s; }
.titlebar > :nth-child(6) { animation-delay: 0.2s; }

/* ── Content offset ─────────────────────────────────── */

.content {
  padding-top: 64px !important;
}

section.content {
  padding-top: 64px !important;
}

.markdown-section {
  padding-top: 20px !important;
}

/* ── Responsive ─────────────────────────────────────── */

@media screen and (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .sidebar {
    position: fixed !important;
    left: 0 !important;
    top: 0 !important;
    bottom: 0 !important;
    width: 300px !important;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 999;
  }

  body.sidebar-open .sidebar {
    transform: translateX(0) !important;
  }

  .content {
    left: 0 !important;
    width: 100% !important;
  }

  .titlebar-brand span {
    font-size: 15px;
  }

  .breadcrumb-separator,
  .breadcrumb-repo-selector,
  .titlebar-site-name {
    font-size: 13px !important;
  }

  .titlebar-search.expanded .titlebar-search-input {
    width: 160px;
  }

  .titlebar-search-results {
    width: 280px;
  }

  .search-hint {
    display: none;
  }
}

@media screen and (max-width: 480px) {
  .titlebar-brand span {
    display: none;
  }

  .breadcrumb-separator {
    display: none !important;
  }

  .titlebar-search.expanded .titlebar-search-input {
    width: 120px;
  }

  .titlebar-search-results {
    width: 240px;
  }

  .search-hint,
  .search-kbd,
  .titlebar-nav-label {
    display: none;
  }

  .titlebar-nav-link {
    padding: 5px 7px;
  }
}