@import url('./tokens.css');

/* Палитра design-universe-original — site-only extras (hero, footer, …) */
:root,
html[data-theme='light'] {
  --hero-bg: linear-gradient(180deg, #f8f7ff 0%, #ffffff 60%);
  --hero-glow: rgba(123, 104, 238, 0.14);
  --footer-bg: #2c3e50;
  --footer-text: #ffffff;
  --footer-link: #b0c4de;
  --code-toolbar: #eeedf5;
}

html[data-theme='dark'] {
  --hero-bg: linear-gradient(180deg, #2a2240 0%, #1a1a1a 55%);
  --hero-glow: rgba(147, 112, 219, 0.2);
  --footer-bg: #0a0a0a;
  --footer-text: #e8e8e8;
  --footer-link: #b0c4de;
  --code-toolbar: #252532;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --hero-bg: linear-gradient(180deg, #2a2240 0%, #1a1a1a 55%);
    --hero-glow: rgba(147, 112, 219, 0.2);
    --footer-bg: #0a0a0a;
    --footer-text: #e8e8e8;
    --footer-link: #b0c4de;
    --code-toolbar: #252532;
  }
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --hero-bg: linear-gradient(180deg, #f8f7ff 0%, #ffffff 60%);
    --hero-glow: rgba(123, 104, 238, 0.14);
    --footer-bg: #2c3e50;
    --footer-text: #ffffff;
    --footer-link: #b0c4de;
    --code-toolbar: #eeedf5;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body.site {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
}

a {
  color: var(--accent);
}

a:hover {
  color: var(--accent-hover);
}

.wrap {
  width: min(1100px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0 0.85rem;
  box-shadow:
    0 1px 0 color-mix(in srgb, var(--it-primary) 8%, transparent),
    0 6px 24px color-mix(in srgb, var(--it-primary) 6%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.site-header__row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.theme-toggle {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  flex-shrink: 0;
}

.theme-toggle__btn {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 0.35rem 0.7rem;
  font-size: 0.78rem;
  font-family: var(--font);
  cursor: pointer;
}

.theme-toggle__btn.is-active {
  background: var(--accent);
  color: #fff;
}

.brand {
  display: inline-flex;
  gap: 0.65rem;
  align-items: center;
  text-decoration: none;
  color: inherit;
}

.brand__glyph {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.55rem;
  flex-shrink: 0;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--it-primary), var(--it-primary-dark));
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.brand__logo {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.55rem;
  object-fit: contain;
  flex-shrink: 0;
}

.brand__text {
  display: grid;
  gap: 0.05rem;
  line-height: 1.2;
}

.brand__title {
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  background: linear-gradient(
    120deg,
    var(--it-primary) 0%,
    color-mix(in srgb, var(--it-primary) 70%, var(--text)) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand__subtitle {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--muted);
}

.site-header__lead {
  margin: 0.5rem 0 0;
  color: var(--muted);
  max-width: 52rem;
}

.site-main {
  padding: 1rem 0 2rem;
}

@media (max-width: 640px) {
  .site-header__row {
    flex-direction: column;
    align-items: stretch;
  }

  .theme-toggle {
    align-self: flex-start;
  }

  .hero-panel {
    padding: 1rem;
  }

  .example-grid {
    grid-template-columns: 1fr;
  }
}

.site-footer {
  margin-top: 2rem;
  padding: 1.35rem 0 1.75rem;
  color: var(--footer-text);
  background: var(--footer-bg);
  border-top: 1px solid color-mix(in srgb, var(--it-primary) 20%, transparent);
}

.site-footer a {
  color: var(--footer-link);
}

.site-footer a:hover {
  color: #fff;
}

.site-footer code {
  color: color-mix(in srgb, var(--footer-link) 90%, #fff);
  background: rgba(255, 255, 255, 0.08);
  border: 0;
}

.site-footer__inner {
  display: grid;
  gap: 0.35rem;
}

.site-footer__inner p {
  margin: 0;
}

.site-footer__muted {
  font-size: 0.82rem;
  color: color-mix(in srgb, var(--footer-link) 85%, var(--footer-text));
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.catalog-home {
  width: min(1080px, calc(100% - 1.5rem));
  margin-inline: auto;
  padding-bottom: 1rem;
}

.hero-panel {
  display: grid;
  gap: 1rem;
  padding: 1.35rem 1.25rem;
  background: var(--hero-bg);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow-md);
}

.hero-panel__eyebrow {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--it-primary);
  font-weight: 700;
}

.hero-panel h1 {
  margin: 0.2rem 0 0;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  line-height: 1.15;
}

.hero-panel__lead {
  margin: 0.55rem 0 0;
  color: var(--muted);
  max-width: 40rem;
  font-size: 0.95rem;
}

.hero-panel__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.9rem;
}

.stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--it-primary-dark);
  font-size: 0.8rem;
  border: 1px solid color-mix(in srgb, var(--it-primary) 18%, transparent);
}

html[data-theme='dark'] .stat-pill {
  color: var(--it-primary-light);
}

.stat-pill strong {
  font-weight: 700;
}

.hero-panel__search {
  margin-top: 0.15rem;
}

.catalog-search__input--hero {
  width: 100%;
  max-width: none;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  border-radius: calc(var(--radius) - 2px);
  border-color: color-mix(in srgb, var(--it-primary) 22%, var(--border));
}

.catalog-search__input--hero:focus {
  outline: 2px solid color-mix(in srgb, var(--it-primary) 35%, transparent);
  outline-offset: 1px;
}

.catalog-block {
  margin-top: 1.5rem;
}

.catalog-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.35rem 1rem;
  margin-bottom: 0.75rem;
}

.catalog-block__head h2 {
  margin: 0;
  font-size: 1.05rem;
}

.catalog-block__head p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.series-strip {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.65rem;
}

.series-card {
  display: grid;
  gap: 0.2rem;
  padding: 0.85rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, transform 0.15s;
}

.series-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.series-card__title {
  font-weight: 600;
  font-size: 0.95rem;
}

.series-card__meta {
  font-size: 0.8rem;
  color: var(--muted);
}

.lang-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.lang-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--border);
  background: var(--surface);
  color: inherit;
  border-radius: 999px;
  padding: 0.32rem 0.7rem;
  font-size: 0.78rem;
  font-family: var(--font);
  cursor: pointer;
}

.lang-chip.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.lang-chip__count {
  opacity: 0.75;
  font-size: 0.72rem;
}

.catalog-sections {
  display: grid;
  gap: 1.25rem;
}

.catalog-section__title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.55rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--muted);
}

.catalog-section__count {
  display: inline-grid;
  place-items: center;
  min-width: 1.35rem;
  height: 1.35rem;
  padding: 0 0.3rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.72rem;
}

.example-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.6rem;
}

.example-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.example-card:hover {
  border-color: color-mix(in srgb, var(--it-primary) 45%, var(--border));
  box-shadow: var(--shadow-md);
}

.example-card__link {
  display: grid;
  gap: 0.25rem;
  flex: 1;
  padding: 0.8rem 0.85rem 0.45rem;
  text-decoration: none;
  color: inherit;
}

.example-card__title {
  font-weight: 600;
  font-size: 0.9rem;
  line-height: 1.35;
}

.example-card__desc {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.example-card__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  padding: 0 0.75rem 0.7rem;
}

.tag--muted {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
}

.catalog-search__empty {
  margin: 0.75rem 0 0;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px dashed var(--border);
  color: var(--muted);
  font-size: 0.88rem;
  text-align: center;
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

.hero p {
  margin: 0;
  color: var(--muted);
  max-width: 52rem;
}

.stats {
  display: flex;
  gap: 1.5rem;
  margin: 1.25rem 0 0;
}

.stats dt {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stats dd {
  margin: 0.15rem 0 0;
  font-size: 1.4rem;
  font-weight: 700;
}

.catalog-section {
  margin-top: 2rem;
}

.catalog-section h2 {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
}

.example-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.example-list a {
  display: block;
  padding: 0.9rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
}

.example-list a:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.example-list__title {
  display: block;
  font-weight: 600;
}

.example-list__desc {
  display: block;
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.example-list__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.35rem;
  align-items: center;
}

.tag,
.pill {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.78rem;
}

.pill--link {
  text-decoration: none;
}

.example__header {
  margin-bottom: 1rem;
}

.back {
  display: inline-block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.example__lead {
  color: var(--muted);
  max-width: 52rem;
}

.example__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.75rem;
}

.catalog-search {
  margin-top: 1.5rem;
}

.catalog-search__label {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.catalog-search__input {
  width: 100%;
  max-width: 32rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: inherit;
  padding: 0.65rem 0.85rem;
  font: inherit;
}

.catalog-search__meta,
.catalog-search__empty {
  margin: 0.45rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.series-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.series-list a {
  display: block;
  padding: 0.85rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
}

.series-list a:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.series-list__title {
  display: block;
  font-weight: 600;
}

.series-list__meta {
  display: block;
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.tag--series {
  background: #ede7f6;
  color: #512da8;
  border: 1px solid #b39ddb;
}

html[data-theme='dark'] .tag--series {
  background: color-mix(in srgb, #ab47bc 18%, var(--surface));
  color: #e1bee7;
  border-color: color-mix(in srgb, #ab47bc 38%, #444);
}

.code-block {
  border: 1px solid var(--code-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--code-bg);
  box-shadow: 0 1px 2px color-mix(in srgb, var(--text) 6%, transparent);
}

.code-block__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.45rem 0.65rem;
  border-bottom: 1px solid var(--code-border);
  background: var(--code-toolbar);
}

.code-block__meta {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  min-width: 0;
}

.code-block__lang {
  flex-shrink: 0;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.code-block__name {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--code-fg);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.code-block__actions {
  display: flex;
  gap: 0.35rem;
}

.code-block__btn,
.file-tabs__copy-all {
  border: 1px solid var(--code-border);
  background: var(--surface);
  color: var(--code-fg);
  border-radius: 6px;
  padding: 0.28rem 0.6rem;
  font-size: 0.75rem;
  font-family: var(--font);
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

html[data-theme='dark'] .code-block__btn,
html[data-theme='dark'] .file-tabs__copy-all,
:root:not([data-theme]) .code-block__btn,
:root:not([data-theme]) .file-tabs__copy-all {
  background: #21262d;
}

.code-block__btn:hover,
.file-tabs__copy-all:hover {
  border-color: var(--accent);
}

.code-block__btn.is-copied,
.file-tabs__copy-all.is-copied {
  border-color: #3fb950;
  color: #3fb950;
}

.code-block__views .code-block__view--light {
  display: none;
}

html[data-theme='light'] .code-block__views .code-block__view--light {
  display: block;
}

html[data-theme='light'] .code-block__views .code-block__view--dark {
  display: none;
}

html[data-theme='dark'] .code-block__views .code-block__view--dark {
  display: block;
}

html[data-theme='dark'] .code-block__views .code-block__view--light {
  display: none;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) .code-block__views .code-block__view--light {
    display: block;
  }
  :root:not([data-theme]) .code-block__views .code-block__view--dark {
    display: none;
  }
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .code-block__views .code-block__view--dark {
    display: block;
  }
  :root:not([data-theme]) .code-block__views .code-block__view--light {
    display: none;
  }
}

.code-block pre,
.file-tabs__panel pre {
  margin: 0 !important;
  border-radius: 0 !important;
  padding: 0.85rem 1rem 0.85rem 0 !important;
  font-size: 0.875rem;
  line-height: 1.55;
}

.code-block pre code {
  counter-reset: code-line;
  display: block;
  white-space: normal;
}

.code-block pre code > .line {
  display: block;
  position: relative;
  padding-left: 3.25rem;
  white-space: pre;
  min-height: 1.55em;
}

.code-block pre code > .line:empty::after {
  content: '\00a0';
  white-space: pre;
}

.code-block pre code > .line::before {
  counter-increment: code-line;
  content: counter(code-line);
  position: absolute;
  left: 0;
  width: 2.5rem;
  padding-right: 0.75rem;
  text-align: right;
  color: color-mix(in srgb, var(--code-fg) 42%, transparent);
  user-select: none;
  pointer-events: none;
  font-variant-numeric: tabular-nums;
}

.file-tabs__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.file-tabs__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.file-tabs__tab {
  border: 1px solid var(--border);
  background: var(--surface);
  color: inherit;
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  cursor: pointer;
}

.file-tabs__tab.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.embed-help {
  margin-top: 1.5rem;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.embed-help__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.65rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--accent-soft);
}

.embed-help h2 {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text);
}

.embed-help__hint {
  margin: 0.35rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.45;
}

.embed-help__hint code {
  font-family: var(--mono);
  font-size: 0.78rem;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
}

.embed-help__copy {
  border: 1px solid var(--code-border);
  background: var(--surface);
  color: var(--code-fg);
  border-radius: 6px;
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
  font-family: var(--font);
  cursor: pointer;
  flex-shrink: 0;
}

.embed-help__copy:hover {
  border-color: var(--accent);
}

.embed-help__copy.is-copied {
  border-color: #3fb950;
  color: #3fb950;
}

.embed-snippet {
  margin: 0;
  overflow: auto;
  padding: 0.85rem 1rem;
  background: var(--code-bg);
  color: var(--code-fg);
  border: 0;
  border-radius: 0;
  font-family: var(--mono);
  font-size: 0.84rem;
  line-height: 1.5;
}

.embed-snippet code {
  font-family: inherit;
  color: inherit;
  background: transparent;
}

.site--embed .site-main,
html.html--embed .site-main {
  padding: 0.75rem 0 1rem;
}

.example--embed .wrap,
html.html--embed .example .wrap {
  width: min(100%, calc(100% - 1rem));
}

.example--embed .example__header,
html.html--embed .example__header {
  margin-bottom: 0.75rem;
}

.example--embed h1,
html.html--embed .example h1 {
  font-size: 1.05rem;
  margin: 0 0 0.25rem;
}

.example--embed .example__lead,
.example--embed .example__meta .pill--link,
html.html--embed .example__lead,
html.html--embed .example__meta .pill--link {
  display: none;
}

html.html--embed .site-header,
html.html--embed .site-footer,
html.html--embed .back,
html.html--embed .embed-help {
  display: none !important;
}

.embed-open {
  display: none;
  margin: 0.65rem 0 0;
  text-align: right;
  font-size: 0.82rem;
}

html.html--embed .embed-open,
.example--embed .embed-open {
  display: block;
}

.embed-open a {
  color: var(--muted);
  text-decoration: none;
}

.embed-open a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.series-nav {
  margin-bottom: 1rem;
  padding: 0.9rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.series-nav__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.series-nav__badge {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.series-nav__title {
  font-weight: 600;
  text-decoration: none;
  color: inherit;
}

.series-nav__progress {
  margin-left: auto;
  font-size: 0.82rem;
  color: var(--muted);
}

.series-nav__steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.65rem;
}

.series-nav__step {
  display: inline-grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  font-size: 0.78rem;
}

.series-nav__step.is-current {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.series-nav__links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-top: 0.65rem;
  font-size: 0.88rem;
}

.series-nav__link--next {
  text-align: right;
}

.example-viewer__modes,
.version-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.5rem;
}

.example-viewer__mode,
.version-tabs__tab {
  border: 1px solid var(--border);
  background: var(--surface);
  color: inherit;
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  cursor: pointer;
}

.example-viewer__mode.is-active,
.version-tabs__tab.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.diff-viewer {
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.diff-viewer__header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 0.75rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
}

.diff-viewer__label--old {
  color: #cf222e;
}

.diff-viewer__label--new {
  color: #1a7f37;
}

html[data-theme='dark'] .diff-viewer__label--old {
  color: #ff7b72;
}

html[data-theme='dark'] .diff-viewer__label--new {
  color: #3fb950;
}

.diff-viewer__same {
  margin-left: auto;
  color: var(--muted);
}

.diff-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 0.8rem;
}

.diff-line__num {
  width: 2.5rem;
  padding: 0 0.35rem;
  text-align: right;
  color: var(--muted);
  user-select: none;
  vertical-align: top;
}

.diff-line__sign {
  width: 1rem;
  text-align: center;
  user-select: none;
}

.diff-line__code {
  padding: 0 0.5rem 0 0;
  white-space: pre;
}

.diff-line--add {
  background: rgba(46, 160, 67, 0.12);
}

.diff-line--remove {
  background: rgba(248, 81, 73, 0.12);
}

.series-page__header h1 {
  margin: 0.35rem 0 0.25rem;
}

.series-page__meta {
  color: var(--muted);
}

.series-page__steps {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.series-page__steps a {
  display: flex;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
}

.series-page__steps a:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.series-page__step-num {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

.series-page__step-title {
  display: block;
  font-weight: 600;
}

.series-page__step-desc,
.series-page__step-files {
  display: block;
  margin-top: 0.15rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.code-fullscreen-dialog {
  width: min(96vw, 1200px);
  max-height: 92vh;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 2px);
  padding: 0;
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 24px 64px color-mix(in srgb, #000 28%, transparent);
}

.code-fullscreen-dialog::backdrop {
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(2px);
}

.code-fullscreen-dialog__inner {
  display: flex;
  flex-direction: column;
  max-height: 92vh;
}

.code-fullscreen-dialog__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--code-toolbar, var(--surface));
}

.code-fullscreen-dialog__meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
}

.code-fullscreen-dialog__lang {
  flex-shrink: 0;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.code-fullscreen-dialog__title {
  font-family: var(--mono);
  font-size: 0.88rem;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.code-fullscreen-dialog__actions {
  display: flex;
  gap: 0.4rem;
  flex-shrink: 0;
}

.code-fullscreen-dialog__body {
  overflow: auto;
  padding: 0.85rem 1rem 1rem;
  background: var(--code-bg, var(--surface));
}

.code-fullscreen-dialog__code {
  border: 1px solid var(--code-border, var(--border));
  border-radius: var(--radius);
  overflow: auto;
  background: var(--code-bg);
}

.code-fullscreen-dialog__code pre {
  margin: 0 !important;
  padding: 0.85rem 1rem 0.85rem 0 !important;
  border-radius: var(--radius) !important;
  font-size: 0.9rem;
  line-height: 1.55;
  white-space: normal;
}

.code-fullscreen-dialog__code pre code {
  display: block;
  white-space: normal;
  counter-reset: code-line;
}

.code-fullscreen-dialog__code pre code > .line {
  display: block;
  position: relative;
  padding-left: 3.25rem;
  white-space: pre;
  min-height: 1.55em;
}

.code-fullscreen-dialog__code pre code > .line:empty::after {
  content: '\00a0';
  white-space: pre;
}

.code-fullscreen-dialog__code pre code > .line::before {
  counter-increment: code-line;
  content: counter(code-line);
  position: absolute;
  left: 0;
  width: 2.5rem;
  padding-right: 0.75rem;
  text-align: right;
  color: color-mix(in srgb, var(--code-fg) 42%, transparent);
  user-select: none;
  pointer-events: none;
  font-variant-numeric: tabular-nums;
}

html.embed-doc .code-fullscreen-dialog {
  width: 100vw;
  max-width: 100vw;
  height: 100vh;
  max-height: 100vh;
  margin: 0;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

html.embed-doc .code-fullscreen-dialog__inner {
  max-height: 100vh;
  height: 100%;
}

html.embed-doc .code-fullscreen-dialog__body {
  flex: 1;
  min-height: 0;
}

.hero-panel__links {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.play-page {
  padding-bottom: 2rem;
}

.play-page__crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.play-page__crumb a {
  text-decoration: none;
}

.play-page__head h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.play-page__lead {
  margin: 0;
  color: var(--muted);
  max-width: 42rem;
}

.play-page__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.65rem;
}

.play-page__embed-help {
  margin-top: 1.5rem;
  padding: 1rem 1.1rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.play-page__embed-help h2 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
}

.embed-snippet {
  margin: 0.5rem 0;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.8rem;
}

.play-missing {
  padding: 1rem;
  border: 1px solid #c62828;
  border-radius: 8px;
  color: #c62828;
  background: rgba(198, 40, 40, 0.08);
}