/* ===== Custom Properties ===== */
:root {
  --color-bg: #0a0a0f;
  --color-surface: #1a1a2e;
  --color-surface-hover: #222240;
  --color-border: #2a2a3e;
  --color-border-light: #3a3a4e;
  --color-text: #e0e0e0;
  --color-text-muted: #a0a0b0;
  --color-text-dim: #707080;
  --color-accent: #22c55e;
  --color-accent-hover: #16a34a;
  --color-accent-glow: rgba(34, 197, 94, 0.15);
  --color-link: #4ade80;
  --color-link-hover: #22c55e;
  --color-code-bg: #12121e;
  --color-nav-bg: rgba(10, 10, 15, 0.85);

  --font-sans: 'Open Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  --container-width: 80rem;
  --container-padding: 1.5rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;

  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
}

/* ===== Typography ===== */
h1,
h2,
h3,
h4 {
  color: #ffffff;
  line-height: 1.3;
  font-weight: 700;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--color-text);
}

/* ===== Links ===== */
a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-link-hover);
  text-decoration: underline;
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ===== Sections ===== */
.section {
  padding: 2rem 0;
}

.section-title {
  font-size: 1.75rem;
  margin-bottom: 2rem;
}

/* ===== Page header (for non-home pages) ===== */
.page-header {
  padding: 3rem 0 1rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 1rem;
}

.page-header h1 {
  font-size: 2.25rem;
}

.page-header p {
  color: var(--color-text-muted);
  font-size: 1.125rem;
  margin-top: 0.5rem;
}

/* ===== Two-Column Pane Layout ===== */
.pane {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
  padding: 1.0rem 0;
}

.pane-text-left {
  grid-template-columns: 1.2fr 0.6fr;
}

.pane-text-right {
  grid-template-columns: 0.8fr 1.2fr;
}

/* ===== Cards ===== */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  border-color: var(--color-border-light);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

/* ===== Screenshots ===== */
.screenshot {
  width: 100%;
  max-width: 40rem;
}

.screenshot img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.screenshot:not(:first-child) {
  margin-top: 1.5rem;
}

.lightbox-image {
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.lightbox-image:hover {
  opacity: 0.85;
}

/* ===== Image Utilities ===== */
.image-small {
  width: 16rem;
  height: auto;
  border-radius: var(--radius-md);
}

.image-caption {
  text-align: center;
  font-size: 0.8rem;
  font-style: italic;
  color: var(--color-text-dim);
  margin-top: 0.5rem;
}

/* ===== Code ===== */
.code,
code {
  font-family: var(--font-mono);
  background-color: var(--color-code-bg);
  color: var(--color-accent);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
}

pre {
  background-color: var(--color-code-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 1rem 0;
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--color-text);
  line-height: 1.6;
}

pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* ===== Lists ===== */
ul,
ol {
  margin: 0.5rem 0 1rem 1.5rem;
}

ul {
  list-style-type: square;
}

li {
  margin-bottom: 0.35rem;
  color: var(--color-text);
}

li::marker {
  color: var(--color-accent);
}

/* ===== Callout ===== */
.callout {
  background-color: rgba(34, 197, 94, 0.08);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}

.callout p:last-child {
  margin-bottom: 0;
}

/* ===== Inline labels ===== */
.brand {
  font-weight: 700;
  color: #ffffff;
}

.package-name,
.list-label {
  font-weight: 600;
  color: #ffffff;
}

/* ===== Lightbox ===== */
#lightbox {
  display: none;
  position: fixed;
  z-index: 100;
  inset: 0;
  background-color: rgba(0, 0, 10, 0.9);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

#lightbox.active {
  display: flex;
}

#lightbox-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 92vw;
  max-height: 92vh;
}

#lightbox-close-btn {
  position: absolute;
  top: -2rem;
  right: -1rem;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: white;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--transition-fast);
}

#lightbox-close-btn:hover {
  background: var(--color-accent);
}

#lightbox img {
  max-height: 85vh;
  max-width: 90vw;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

/* ===== Responsive ===== */
@media screen and (max-width: 768px) {
  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.35rem;
  }

  .pane,
  .pane-text-left,
  .pane-text-right {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1.5rem 0;
  }

  .screenshot {
    max-width: 100%;
  }

  .image-caption {
    text-align: left;
  }

  .section {
    padding: 2.5rem 0;
  }

  .page-header {
    padding: 2rem 0 1.5rem;
    margin-bottom: 2rem;
  }
}

@media screen and (max-width: 480px) {
  :root {
    --container-padding: 1rem;
  }

  h1 {
    font-size: 1.5rem;
  }
}






/* ===== Site navigation (portal-consistent) ===== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-nav-inner {
  display: flex;
  align-items: center;
  height: 4rem;
}

.site-nav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: #ffffff;
  flex-shrink: 0;
}

.site-nav-brand:hover {
  text-decoration: none;
  color: #ffffff;
}

.site-nav-logo {
  height: 2.25rem;
  width: auto;
}

.site-nav-name {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.site-nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
}

.site-nav-link {
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.site-nav-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
  text-decoration: none;
}

.site-nav-link.active {
  color: var(--color-accent);
}

.site-nav-github {
  display: flex;
  align-items: center;
  margin-left: 0.5rem;
}

/* ===== Doc layout ===== */
.doc-layout {
  display: flex;
  min-height: calc(100vh - 4rem);
}

/* ===== Doc sidebar ===== */
.doc-nav {
  width: 280px;
  min-width: 280px;
  border-right: 1px solid var(--color-border);
  padding: 0 1em 0 0;
  overflow-y: auto;
  position: sticky;
  top: 4rem;
  height: calc(100vh - 4rem);
}

.doc-nav-header {
  margin-bottom: 1.5em;
}

.doc-nav-header a {
  color: #ffffff;
  text-decoration: none;
  font-size: 1.1em;
  font-weight: 600;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.5em;
}

.doc-nav-header a:hover {
  text-decoration: none;
}

.doc-nav-header a img {
  display: block;
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  max-width: 32px;
  max-height: 32px;
}

.doc-nav-header a span {
  flex: 1;
  white-space: nowrap;
}

.doc-nav ul {
  list-style: none;
  padding: 1rem 0 1rem 0;
  margin: 0;
}

.doc-nav ul ul {
  padding: 0 0 0 2em;
}

.doc-nav li {
  margin: 0.2em 0;
}

.doc-nav ul a {
  color: var(--color-link);
  text-decoration: none;
  display: block;
  padding: 0.25em 0.5em;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
}

.doc-nav ul a:hover {
  color: var(--color-link-hover);
  background: rgba(255, 255, 255, 0.05);
  text-decoration: none;
}

.nav-section {
  display: block;
  font-weight: 600;
  color: #ffffff;
  padding: 0.5rem 0.5rem 0.2rem;
  margin-top: 0.5rem;
}

/* ===== Doc main content ===== */
.doc-main {
  flex: 1;
  padding: 0 2rem 1rem 2rem;
  overflow-y: auto;
}

.help h1 {
  font-size: 1.8em;
  margin: 0 0 1.0em 0;
  display: flex;
  align-items: center;
  gap: 0.3em;
}

.help h1:first-child {
  margin-top: 1.0rem;
}

.help h2 {
  font-size: 1.4em;
  margin: 1.5rem 0 0.75rem 0;
  display: flex;
  align-items: center;
  gap: 0.3em;
}

.help h3 {
  font-size: 1.15em;
  margin: 1.2rem 0 0.5rem 0;
  display: flex;
  align-items: center;
  gap: 0.3em;
}

.help h4,
.help h5,
.help h6 {
  margin: 1rem 0 0.5rem 0;
}

.help p {
  margin: 0 0 0.75rem 0;
}

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

.help a:hover {
  color: var(--color-link-hover);
}

.help ul,
.help ol {
  margin: 0 0 0.75rem 1.5em;
}

.help ul {
  list-style-type: square;
}

.help li {
  margin: 0.25em 0;
}

.help li::marker {
  color: var(--color-accent);
}

.help blockquote {
  margin: 1em 0;
  padding: 1em;
  background-color: rgba(34, 197, 94, 0.08);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.help blockquote p {
  margin: 0;
}

.help pre {
  background-color: var(--color-code-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 0 0 0.75rem 0;
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--color-text);
  line-height: 1.6;
}

.help code {
  font-family: var(--font-mono);
  background-color: var(--color-code-bg);
  color: var(--color-accent);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
}

.help pre code {
  background: none;
  padding: 0;
  color: inherit;
}

.help table {
  border-collapse: collapse;
  margin: 0 0 0.75rem 0;
  width: 100%;
}

.help thead {
  border-bottom: 2px solid var(--color-border-light);
}

.help td,
.help th {
  padding: 0.5em 0.75em;
  text-align: left;
}

.help th {
  font-weight: 600;
  color: #ffffff;
}

.help img,
.help .help-image {
  max-width: 80%;
  margin: 1em 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

/* ===== Column layout ===== */
.help-columns {
  display: grid;
  grid-template-columns: auto auto;
  gap: 4em;
  max-width: 80em;
}

.help-columns .help-columns {
  grid-template-columns: auto auto;
  gap: 0;
}

.help-column {
  min-width: 0;
}

/* ===== Icon styles ===== */
.help-icon {
  display: inline-flex;
  align-items: center;
  vertical-align: middle;
  width: 1.2em;
  margin-right: 0.3em;
}

.help-icon svg {
  width: 1.2em;
  height: 1.2em;
  vertical-align: middle;
}

.help-icon .icon-apicize {
  width: 4em;
  height: 4em;
  margin: 0.1em 0;
  vertical-align: middle;
}

/* ===== Logo styles ===== */
h1:has(.logo) {
  margin: 0;
}

.logo {
  display: flex;
  align-items: center;
  margin: 0;
  gap: 0.5em;
}

.logo-icon img {
  margin: 0;
  display: block;
  border: none;
}

.logo-header .logo-title {
  font-size: 2em;
  margin: 0;
  line-height: 1.2;
}

.logo-header .logo-version {
  font-size: 1.2em;
  margin: 0;
  font-weight: normal;
  color: var(--color-text-muted);
}