/* Color variables - Light theme (default) */
:root {
  --bg-page: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-header: #f1f5f9;
  --border-card: transparent;
  --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.08);

  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #475569;

  --link-primary: #0d6efd;
  --link-primary-bg: rgba(13, 110, 253, 0.1);
  --link-primary-bg-hover: rgba(13, 110, 253, 0.14);

  --focus-ring: rgba(59, 130, 246, 0.6);

  /* Split container specific */
  --border-subtle: #e2e8f0;
  --version-item-border: #f1f5f9;
  --version-item-hover: #f8fafc;
  --version-item-active-bg: #eff6ff;
  --version-date: #94a3b8;
  --meta-pill-bg: #e2e8f0;
  --scrollbar-thumb: #c4c9cf;
}

/* Dark theme */
html.dark-mode {
  --bg-page: #0f1419;
  --bg-card: #1a1f26;
  --bg-card-header: #252b33;
  --border-card: #2f3640;
  --shadow-card: none;

  --text-primary: #e7e9ea;
  --text-secondary: #c9d1d9;
  --text-muted: #a1a7b0;

  --link-primary: #58a6ff;
  --link-primary-bg: rgba(56, 139, 253, 0.15);
  --link-primary-bg-hover: rgba(56, 139, 253, 0.25);

  --focus-ring: rgba(56, 139, 253, 0.6);

  /* Split container specific */
  --border-subtle: #2f3640;
  --version-item-border: #252b33;
  --version-item-hover: #252b33;
  --version-item-active-bg: rgba(56, 139, 253, 0.15);
  --version-date: #6e7681;
  --meta-pill-bg: #2f3640;
  --scrollbar-thumb: #484f58;
}

body {
  margin: 0;
  background: var(--bg-page);
  color: var(--text-primary);
  font-family: "Helvetica Neue", Arial, sans-serif;
}

html, body {
  height: 100%;
}

.index-main {
  padding: 1rem 0;
  max-height: calc(100vh - 44px); /* cap at viewport minus banner height */
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}

.container {
  max-width: clamp(800px, 85vw, 1400px);
  margin: 0 auto;
  padding: 0 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0; /* allows flex child to shrink for scrolling */
  gap: 1rem
}

.index-heading {
  margin: 0 0 1.5rem 0;
  font-size: 2rem;
  color: var(--text-primary);
}

/* About section */
.about {
  margin: 0;
  flex-shrink: 0;
}

.card {
  background: var(--bg-card);
  border-radius: 0.75rem;
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-card);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.about-card p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.5;
}

.about-feedback {
  margin-top: 0.3rem;
  color: var(--text-primary);
}

/* Split container layout */
.split-container {
  display: flex;
  background: var(--bg-card);
  border-radius: 0.75rem;
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-card);
  flex: 0 1 auto; /* size to content, don't grow beyond */
  min-height: 30rem;
  max-height: min(35em, calc(100vh - 12rem)); /* font-based max OR viewport cap */
  overflow: hidden;
}

/* Version list sidebar */
.version-list {
  flex-shrink: 0;
  border-right: 1px solid var(--border-subtle);
  overflow-y: auto;
  min-height: 0; /* allows flex child to shrink below content size */
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) transparent;
}

.version-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  border-bottom: 1px solid var(--version-item-border);
  transition: background-color 0.1s;
}

.version-item:hover {
  background: var(--version-item-hover);
}

.version-item--active {
  background: var(--version-item-active-bg);
  border-left: 3px solid var(--link-primary);
  padding-left: calc(0.75rem - 3px);
}

.version-item__name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
}

.version-item--active .version-item__name {
  color: var(--link-primary);
}

.version-item__date {
  font-size: 0.75rem;
  color: var(--version-date);
  white-space: nowrap;
}

/* Doc panel (right side) */
.doc-panel {
  flex: 1;
  min-width: 0;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) transparent;
}

.doc-panel__content {
  display: none;
  padding: 1rem;
}

.doc-panel__content--active {
  display: block;
}

.doc-panel__header {
  background: var(--bg-card-header);
  padding: 0.75rem;
  border-radius: 0.5rem;
  margin-bottom: 0.75rem;
}

.doc-panel__links {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

/* Card title styles */
.card-title {
  margin: 0;
  font-size: 1.1rem;
}

.card-title--version {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.card-title__icon {
  height: 20px;
  width: 20px;
  flex: 0 0 auto;
}

.card-title__link {
  color: inherit;
  text-decoration: none;
  font-weight: inherit;
}

.card-title__link:hover {
  text-decoration: underline;
}

.card-title__link--icon {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.card-title__link--icon:hover {
  text-decoration: none;
}

.card-title__link:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
  border-radius: 0.3rem;
}

/* Card meta */
.card-meta {
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.4;
}

.card-meta-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.4rem;
}

.meta-pill {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  background: var(--meta-pill-bg);
  color: var(--text-muted);
  font-size: 0.75rem;
  border-radius: 1rem;
  white-space: nowrap;
}

/* Link styles */
.link-primary {
  color: var(--link-primary);
  text-decoration: none;
  font-weight: 500;
}

.link-primary:hover {
  text-decoration: underline;
}

.link-api {
  display: inline-block;
  padding: 0.2rem 0.4rem;
  background: var(--link-primary-bg);
  border-radius: 0.25rem;
}

.link-api:hover {
  background: var(--link-primary-bg-hover);
}

.link-muted {
  color: var(--text-muted);
  text-decoration: none;
}

.link-muted:hover {
  text-decoration: underline;
}

.doc-panel__links .link-muted {
  display: inline-block;
  padding: 0.2rem 0.4rem;
}

/* Legacy row layout (kept for reference, not used in split view) */
.row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.card-links {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.version-card__header {
  background: var(--bg-card-header);
  padding: 0.85rem 0.95rem;
  box-shadow: 0 0 0 0.25rem var(--bg-card-header);
  margin-bottom: .5rem;
}

.version-card__header .card-meta {
  margin-top: 0.35rem;
}

.inline_icon {
      display:inline-block;
      width:1em;
      height:1em;
      vertical-align:-0.125em;
      margin-right:0.35em;
      padding:0.10em;
      vertical-align: middle;
      background:rgba(17, 24, 39, 0.92);
      border-radius:0.22em;
      box-shadow:0 0 0 1px rgba(255,255,255,0.25);
}