@layer base, layout, components;
@layer base {
  :root {
    color-scheme: light;
    --ink: #172333;
    --muted: #526176;
    --navy: #102238;
    --blue: #245eea;
    --line: #dae2ee;
    --pale: #f3f6fb;
    --green: #0d796c;
    --red: #a52b3d;
    font-family:
      Inter,
      -apple-system,
      BlinkMacSystemFont,
      'Segoe UI',
      sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--ink);
    background: white;
  }
  * {
    box-sizing: border-box;
  }
  body {
    margin: 0;
  }
  a {
    color: var(--blue);
    text-underline-offset: 0.2em;
  }
  button,
  input,
  select {
    font: inherit;
  }
  button,
  a,
  input,
  summary {
    -webkit-tap-highlight-color: transparent;
  }
  :focus-visible {
    outline: 3px solid #ea9d1e;
    outline-offset: 4px;
  }
  h1,
  h2,
  h3,
  p {
    margin-top: 0;
  }
  h1 {
    font-size: clamp(2rem, 4vw, 3.1rem);
    line-height: 1.12;
    letter-spacing: -0.04em;
    font-weight: 650;
    margin-bottom: 1.1rem;
  }
  h2 {
    font-size: 1.4rem;
    letter-spacing: -0.025em;
  }
  h3 {
    font-size: 1.05rem;
  }
  code,
  pre {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
    font-size: 0.875rem;
  }
  pre {
    overflow: auto;
    white-space: pre;
    tab-size: 2;
  }
  p {
    max-width: 80ch;
  }
  svg {
    width: 100%;
    height: auto;
  }
  .skip {
    position: fixed;
    top: -100px;
    left: 1rem;
    z-index: 10;
    padding: 1rem;
    background: white;
  }
  .skip:focus {
    top: 1rem;
  }
  .muted {
    color: var(--muted);
  }
  .eyebrow {
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    color: var(--muted);
    font-weight: 650;
  }
  small {
    font-size: 0.875rem;
  }
}
@layer layout {
  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: 250px;
    background: var(--navy);
    color: #dfe7f4;
    padding: 2rem 1.4rem;
    overflow: auto;
  }
  .brand {
    color: white;
    font-size: 1.55rem;
    text-decoration: none;
    letter-spacing: -0.05em;
    font-weight: 700;
    display: flex;
    gap: 0.65rem;
    align-items: center;
  }
  .brand-mark {
    border-radius: 6px;
    width: 36px;
    height: 36px;
    object-fit: contain;
  }
  .sidebar .version {
    color: #adbed4;
    font-size: 0.8rem;
    margin: 0.45rem 0 2.2rem;
  }
  .sidebar nav {
    display: grid;
    gap: 0.3rem;
  }
  .nav-label {
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    color: #96acc9;
    margin: 1.7rem 0.7rem 0.5rem;
    text-transform: uppercase;
  }
  .sidebar nav a {
    color: #dfe7f4;
    text-decoration: none;
    padding: 0.65rem 0.7rem;
    border-radius: 5px;
    font-size: 0.925rem;
  }
  .sidebar nav a:hover,
  .sidebar nav a[aria-current='page'] {
    background: #243e5d;
    color: white;
  }
  .sidebar .note {
    border-top: 1px solid #39516d;
    margin-top: 2.5rem;
    padding-top: 1rem;
    color: #adbed4;
    font-size: 0.875rem;
  }
  .shell {
    margin-left: 250px;
  }
  .topbar {
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 3rem;
    min-height: 72px;
  }
  main {
    max-width: 1400px;
    padding: 3rem;
    margin: auto;
  }
  .page-intro {
    margin-bottom: 2rem;
  }
  .page-intro > p {
    color: var(--muted);
    font-size: 1.1rem;
  }
  .task-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin: 2rem 0 3rem;
  }
  .task-card {
    display: block;
    text-decoration: none;
    color: var(--ink);
    padding: 1.4rem;
    border: 1px solid var(--line);
    border-radius: 8px;
    min-height: 170px;
    box-shadow: 0 2px 3px #17233303;
  }
  .task-card:hover {
    border-color: var(--blue);
    box-shadow: 0 5px 20px #245eea0a;
  }
  .task-card .number {
    color: var(--blue);
    font: 0.85rem monospace;
  }
  .task-card h2 {
    font-size: 1.1rem;
    margin: 0.7rem 0 0.4rem;
  }
  .task-card p {
    color: var(--muted);
    font-size: 0.9rem;
    margin-bottom: 0;
  }
  .playground {
    display: grid;
    grid-template-columns: minmax(240px, 0.7fr) minmax(0, 1.7fr);
    border: 1px solid var(--line);
    border-radius: 9px;
    overflow: hidden;
    margin: 2rem 0;
  }
  .playground-input {
    padding: 1.5rem;
    border-right: 1px solid var(--line);
    background: var(--pale);
  }
  .playground-input > p {
    font-size: 0.875rem;
    color: var(--muted);
  }
  .playground-output {
    min-width: 0;
    padding: 1.5rem;
  }
  .prose {
    max-width: 880px;
  }
  .prose h2 {
    margin-top: 2.5rem;
  }
  .prose h3 {
    margin-top: 1.8rem;
  }
  .prose pre {
    background: var(--pale);
    padding: 1.25rem;
    border: 1px solid var(--line);
    border-radius: 6px;
  }
  footer {
    border-top: 1px solid var(--line);
    margin-top: 4rem;
    padding-top: 1.5rem;
    color: var(--muted);
    font-size: 0.875rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
  }
}
@layer components {
  .version-badge,
  .sample-badge {
    display: inline-flex;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
    padding: 0.2rem 0.55rem;
    border-radius: 4px;
    background: #eaf0ff;
    color: #234fad;
  }
  .sample-badge {
    background: #e5ecef;
    color: #46556b;
  }
  .panel-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1rem;
  }
  .panel-heading h2 {
    margin: 0;
    font-size: 1.05rem;
  }
  form label {
    display: grid;
    gap: 0.15rem;
    font-weight: 550;
    font-size: 0.875rem;
    margin-bottom: 1rem;
  }
  form label small {
    color: var(--muted);
    font-weight: 400;
    font-size: 0.8rem;
  }
  input,
  select {
    width: 100%;
    background: white;
    color: var(--ink);
    border: 1px solid #b9c7d8;
    border-radius: 5px;
    padding: 0.55rem 0.65rem;
    min-height: 42px;
  }
  .button {
    border: 1px solid var(--line);
    border-radius: 5px;
    padding: 0.6rem 0.8rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 550;
  }
  .button.primary {
    color: white;
    background: var(--blue);
    border-color: var(--blue);
  }
  .button.quiet {
    background: white;
    color: var(--ink);
  }
  .button:hover {
    filter: brightness(0.95);
  }
  .button:disabled {
    opacity: 0.6;
    cursor: progress;
  }
  .form-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
  }
  .status {
    color: var(--muted);
    margin: 0.8rem 0 0;
    font-size: 0.8rem;
  }
  .status.error {
    color: var(--red);
  }
  .metrics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    border-bottom: 1px solid var(--line);
    padding-bottom: 1.5rem;
  }
  .metrics div {
    display: grid;
    gap: 0.15rem;
  }
  .metrics span {
    font-size: 0.875rem;
    color: var(--muted);
  }
  .metrics strong {
    font-size: 1.8rem;
    letter-spacing: -0.03em;
    font-weight: 600;
    overflow-wrap: anywhere;
  }
  .metrics small {
    color: var(--muted);
    font-size: 0.75rem;
  }
  .chart {
    margin: 1.5rem 0;
  }
  figcaption {
    font-weight: 550;
    font-size: 0.925rem;
  }
  .chart text {
    font:
      14px -apple-system,
      BlinkMacSystemFont,
      'Segoe UI',
      sans-serif;
    fill: var(--muted);
  }
  .chart-grid {
    stroke: #e3e9f1;
    stroke-width: 1;
  }
  .chart-zero {
    stroke: #9cacc0;
    stroke-width: 1;
  }
  .chart-line {
    fill: none;
    stroke-width: 2.5;
    stroke-linejoin: round;
    stroke-linecap: round;
  }
  .series-0 {
    stroke: var(--blue);
  }
  .series-1 {
    stroke: var(--green);
  }
  .series-2 {
    stroke: #ae5a19;
  }
  .chart-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--muted);
  }
  .legend-0 {
    color: var(--blue);
  }
  .legend-1 {
    color: var(--green);
  }
  .legend-2 {
    color: #ae5a19;
  }
  details {
    border-top: 1px solid var(--line);
    padding: 0.8rem 0;
  }
  summary {
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 550;
  }
  details pre {
    font-size: 0.8rem;
    max-height: 300px;
    padding: 0.75rem;
    background: var(--pale);
  }
  .table-scroll {
    overflow: auto;
    max-height: 340px;
  }
  table {
    border-collapse: collapse;
    width: 100%;
    font-size: 0.875rem;
    margin: 1rem 0;
  }
  th,
  td {
    text-align: left;
    border-bottom: 1px solid var(--line);
    padding: 0.65rem;
    vertical-align: top;
  }
  th {
    background: var(--pale);
  }
  .code-section {
    margin: 2rem 0;
  }
  .code-section > pre {
    background: #13253b;
    color: #e2ebfb;
    padding: 1.5rem;
    border-radius: 8px;
    line-height: 1.8;
    max-height: 480px;
  }
  .callout {
    border-left: 3px solid var(--blue);
    padding: 1rem 1.25rem;
    background: var(--pale);
    margin: 1.5rem 0;
  }
  .searchbox {
    max-width: 440px;
  }
  .searchbox input {
    min-width: 200px;
    background: var(--pale);
    border-color: transparent;
  }
  .search-results {
    margin-top: 1rem;
  }
  .search-result {
    padding: 1rem;
    border-bottom: 1px solid var(--line);
    display: block;
    text-decoration: none;
  }
  .search-result small {
    display: block;
    color: var(--muted);
  }
  .reference-grid {
    display: grid;
    gap: 1rem;
  }
  .reference-entry {
    padding: 1.5rem 0;
    border-top: 1px solid var(--line);
    scroll-margin-top: 2rem;
  }
  .reference-entry code {
    overflow-wrap: anywhere;
  }
  .reference-entry pre {
    max-height: 460px;
  }
  .entrypoint {
    color: var(--muted);
    font-family: monospace;
    font-size: 0.875rem;
  }
  .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;
  }
}
@media (min-width: 1450px) {
  .metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
@media (max-width: 1120px) {
  .sidebar {
    width: 220px;
    padding: 1.5rem 1rem;
  }
  .shell {
    margin-left: 220px;
  }
  main {
    padding: 2rem;
  }
  .topbar {
    padding: 1rem 2rem;
  }
  .task-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .playground {
    grid-template-columns: 1fr;
  }
  .playground-input {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 1rem;
  }
  .form-actions,
  .status {
    grid-column: 1/-1;
  }
}
@media (max-width: 700px) {
  .sidebar {
    position: static;
    width: auto;
    padding: 1rem;
  }
  .sidebar .version {
    margin: 0;
  }
  .sidebar nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 1rem;
  }
  .nav-label {
    grid-column: 1/-1;
    margin: 0.5rem;
  }
  .sidebar .note {
    display: none;
  }
  .shell {
    margin: 0;
  }
  .topbar {
    padding: 1rem;
    flex-wrap: wrap;
  }
  main {
    padding: 1.5rem 1rem;
  }
  .task-grid {
    grid-template-columns: 1fr;
  }
  .task-card {
    min-height: 0;
  }
  .playground-input,
  .playground-output {
    padding: 1rem;
  }
  .metrics strong {
    font-size: 1.5rem;
  }
  form {
    grid-template-columns: 1fr;
  }
  .searchbox {
    width: 100%;
  }
  .code-section > pre {
    padding: 1rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}