@layer tokens {
  :root {
    --surface: rgb(22 20 19);
    --surface-low: rgb(29 26 25);
    --surface-lowest-soft: rgb(12 11 10 / 0.95);
    --surface-backdrop: rgb(12 11 10 / 0.86);

    --text: rgb(234 228 226);
    --text-soft: rgb(234 228 226 / 0.9);
    --text-muted: rgb(210 199 197);
    --text-muted-soft: rgb(210 199 197 / 0.7);
    --text-muted-faint: rgb(210 199 197 / 0.6);
    --text-underline: rgb(234 228 226 / 0.35);

    --primary: rgb(209 140 129);
    --primary-soft: rgb(209 140 129 / 0.65);
    --primary-container: rgb(91 44 35);
    --on-primary-container: rgb(255 218 207);

    --line: rgb(234 228 226 / 0.1);
    --line-soft: rgb(234 228 226 / 0.12);
    --line-strong: rgb(234 228 226 / 0.18);
    --checkbox-border: rgb(234 228 226 / 0.45);
    --outline: rgb(150 141 138 / 0.3);

    --font-body: "JetBrains Mono", monospace;
    --font-display: "Cormorant Garamond", serif;
    --text-body: 400 14px / 24px var(--font-body);
    --text-display: 400 42px / 1.2 var(--font-display);
    --text-headline: 400 24px / 32px var(--font-display);

    --radius-sm: 0.25rem;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-32: 8rem;

    --checkbox-checkmark: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z' fill='%23d18c81'/%3e%3c/svg%3e");
  }
}

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

  html {
    color-scheme: dark;
    background: var(--surface);
  }

  body {
    min-height: 100vh;
    margin: 0;
    display: flex;
    background: var(--surface);
    color: var(--text);
    font: var(--text-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

  button,
  input {
    font: inherit;
  }

  button {
    cursor: pointer;
  }

  [hidden] {
    display: none !important;
  }

  .material-symbols-outlined {
    font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
    line-height: 1;
  }

  .highlight pre {
    padding: var(--space-2) var(--space-4);
  }
}

@layer layout {
  .site-shell {
    width: 100%;
    max-width: 80rem;
    margin-inline: auto;
    padding: var(--space-16) var(--space-8);
    display: flex;
    gap: var(--space-16);
  }

  .site-main {
    flex: 1;
    min-width: 0;
    max-width: 48rem;
    padding-top: var(--space-2);
  }

  .site-sidebar {
    width: 18rem;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-12);
    padding-right: var(--space-8);
    border-right: 1px solid var(--line);
    color: var(--text-muted);
  }

  .site-title {
    display: block;
    color: var(--text);
    font: var(--text-display);
  }

  .site-nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    font-size: 14px;
  }
}

@layer components {
  .content {
    max-width: none;
    color: var(--text-soft);
    overflow-wrap: break-word;
  }

  .page-actions {
    margin-top: var(--space-12);
  }

  .page-link {
    display: inline-flex;
    align-items: center;
    margin-bottom: var(--space-4);
    color: var(--text-muted);
    font-style: italic;
    transition: color 150ms ease;
  }

  .page-link:hover {
    color: var(--primary);
  }

  .page-link .material-symbols-outlined {
    margin-left: var(--space-1);
    font-size: 18px;
  }

  .rule {
    border: 0;
    border-top: 1px solid var(--line);
  }

  .page-list {
    margin-top: var(--space-8);
  }

  .page-list article {
    padding-block: var(--space-5);
  }

  .page-list article + article {
    border-top: 1px solid var(--line);
  }

  .entry-title {
    margin: 0 0 var(--space-3);
  }

  .entry-title a,
  .entry-summary a {
    transition: color 150ms ease;
  }

  .entry-title a:hover,
  .entry-summary a:hover {
    color: var(--primary);
  }

  .entry-summary {
    margin: 0;
    color: var(--text-soft);
  }

  .footer-note {
    color: var(--text-muted);
    font: 400 18px / 28px var(--font-display);
    font-style: italic;
  }

  .site-sidebar .footer-note {
    margin-top: auto;
    padding-top: var(--space-8);
  }

  .page-footer {
    padding-block: var(--space-32) var(--space-8);
  }

  .search-trigger {
    position: relative;
    width: 100%;
    padding: 0.375rem var(--space-3) 0.375rem var(--space-8);
    border: 1px solid var(--outline);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text);
    text-align: left;
    font-size: 13px;
    transition: border-color 150ms ease, box-shadow 150ms ease;
  }

  .search-trigger:focus,
  .search-input:focus,
  .search-close:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary);
  }

  .search-trigger .material-symbols-outlined {
    position: absolute;
    left: var(--space-2);
    top: 0.375rem;
    color: var(--text-muted);
    font-size: 18px;
  }

  .search-trigger-label {
    color: var(--text-muted-soft);
  }

  .tree-node {
    display: flex;
    flex-direction: column;
  }

  .tree-link {
    display: flex;
    align-items: center;
    width: 100%;
    padding-block: var(--space-1);
    color: var(--text-muted);
    text-align: left;
    transition: color 150ms ease;
  }

  .tree-link:hover,
  .tree-link:hover .tree-icon {
    color: var(--primary);
  }

  .tree-link--section {
    color: var(--text);
  }

  .tree-link--nested {
    padding-block: 0.125rem;
  }

  .tree-link--nested:hover {
    color: var(--text);
  }

  .tree-link--leaf {
    display: block;
    padding-block: 0.125rem;
    font-style: italic;
  }

  .tree-link--leaf:hover {
    color: var(--text);
  }

  .tree-link--current {
    color: var(--primary);
  }

  .tree-icon {
    margin-right: var(--space-1);
    color: var(--text-muted);
    font-size: 16px;
    transition: color 150ms ease;
  }

  .tree-icon--small {
    font-size: 14px;
  }

  .tree-children {
    position: relative;
    margin: var(--space-1) 0 var(--space-2) var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    color: var(--text-muted);
    font-size: 13px;
  }

  .tree-children--nested {
    margin-left: var(--space-5);
    margin-bottom: 0;
    font-style: italic;
  }

  .tree-children::before {
    content: "";
    position: absolute;
    left: -12px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--line);
  }

  .search-dialog {
    width: min(78rem, calc(100vw - 2rem));
    max-width: none;
    margin: 6rem auto auto;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--text);
  }

  .search-dialog::backdrop {
    background: var(--surface-backdrop);
  }

  .search-stack {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
  }

  .search-field {
    position: relative;
  }

  .search-field-icon {
    position: absolute;
    left: var(--space-3);
    top: 0.625rem;
    color: var(--text-muted);
    font-size: 20px;
  }

  .search-input {
    width: 100%;
    padding: 0.625rem var(--space-12) 0.625rem 2.5rem;
    border: 1px solid var(--outline);
    border-radius: var(--radius-sm);
    background: var(--surface-lowest-soft);
    color: var(--text);
    transition: border-color 150ms ease, box-shadow 150ms ease;
  }

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

  .search-close {
    position: absolute;
    right: var(--space-2);
    top: var(--space-2);
    display: inline-flex;
    width: 1.75rem;
    height: 1.75rem;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-muted);
  }

  .search-close:hover {
    color: var(--text);
  }

  .search-close .material-symbols-outlined {
    font-size: 18px;
  }

  .search-panel {
    display: grid;
    min-height: 28rem;
    max-height: 70vh;
    overflow: hidden;
    border: 1px solid var(--outline);
    border-radius: var(--radius-sm);
    background: var(--surface-lowest-soft);
  }

  .search-results {
    overflow-y: auto;
    border-bottom: 1px solid var(--outline);
  }

  .search-preview {
    overflow-y: auto;
    padding: var(--space-6);
  }

  .search-message {
    min-height: 28rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    color: var(--text-muted);
    text-align: center;
  }

  .search-placeholder {
    margin: 0;
    color: var(--text-muted);
  }

  .search-mark {
    border-radius: var(--radius-sm);
    background: var(--primary-container);
    color: var(--on-primary-container);
    padding-inline: 0.125rem;
  }

  .search-preview-title {
    display: block;
    color: var(--text);
    font: var(--text-headline);
    transition: color 150ms ease;
  }

  .search-preview-title:hover {
    color: var(--primary);
  }

  .search-preview-summary {
    margin: var(--space-4) 0 0;
    color: var(--text-soft);
  }

  .search-preview-body {
    margin: var(--space-6) 0 0;
    color: var(--text-muted);
    white-space: pre-wrap;
  }

  .search-result {
    display: block;
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--outline);
    color: var(--text);
  }

  .search-result:hover,
  .search-result:focus {
    outline: none;
    background: var(--surface-low);
  }
}

@layer prose {
  .content :where(h1, h2, h3, h4) {
    color: var(--text);
    font-family: var(--font-display);
    font-weight: 400;
  }

  .content :where(h1, h2) {
    text-decoration: underline;
    text-decoration-color: var(--text-underline);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.18em;
  }

  .content h1 {
    margin: 0 0 var(--space-3);
    font-size: 2.25rem;
    line-height: 1.1111;
  }

  .content h2 {
    margin: var(--space-6) 0 var(--space-2);
    font-size: 1.5rem;
    line-height: 2rem;
  }

  .content h3 {
    margin: var(--space-6) 0 var(--space-2);
    font-size: 1.40625rem;
    line-height: 1.90625rem;
    font-weight: 500;
  }

  .content h4 {
    margin: var(--space-5) 0 var(--space-2);
    font-size: 1.1875rem;
    line-height: 1.6875rem;
    font-weight: 500;
  }

  .content p,
  .content ul,
  .content ol,
  .content blockquote,
  .content pre,
  .content table {
    margin-block: var(--space-5);
  }

  .content :where(h1, h2, h3, h4) + p {
    margin-top: var(--space-3);
  }

  .content :where(ul, ol) {
    padding-left: 1.625rem;
  }

  .content li {
    margin-block: 0.5rem;
    padding-left: 0.375rem;
  }

  .content li::marker {
    color: var(--text-soft);
  }

  .content li > p {
    margin-block: 0;
  }

  .content li > :where(ul, ol) {
    margin-block: 0.5rem 0;
  }

  .content strong {
    color: var(--text);
    font-weight: 700;
  }

  .content a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 0.15em;
  }

  .content blockquote {
    margin-inline: 2ch 0;
    padding-left: 2ch;
    border-left: 2px solid var(--primary-soft);
    color: var(--text-muted);
    font-style: italic;
  }

  .content :not(pre) > code {
    color: var(--primary);
    font-size: inherit;
    font-weight: 400;
  }

  .content pre {
    max-width: 100%;
    overflow-x: auto;
  }

  .content table {
    width: 100%;
    border-collapse: collapse;
  }

  .content th,
  .content td {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--line-soft);
    text-align: left;
  }

  .content th {
    border-color: var(--line-strong);
    color: var(--text);
    font-weight: 700;
  }

  .content hr {
    border: 0;
    border-top: 1px solid var(--line);
  }

  .content input[type="checkbox"] {
    appearance: none;
    width: 0.875rem;
    height: 0.875rem;
    margin: 0 0.5rem 0 0;
    vertical-align: -0.125rem;
    background-color: var(--surface);
    border: 1px solid var(--checkbox-border);
    border-radius: 0.125rem;
    color: var(--primary);
  }

  .content input[type="checkbox"]:checked {
    background-color: var(--surface);
    background-image: var(--checkbox-checkmark);
    background-position: center;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    border-color: var(--primary);
  }
}

@layer responsive {
  @media (min-width: 768px) {
    .search-panel {
      grid-template-columns: minmax(14rem, 24rem) 1fr;
    }

    .search-results {
      border-right: 1px solid var(--outline);
      border-bottom: 0;
    }

    .search-preview {
      padding: var(--space-8);
    }

    .search-message {
      grid-column: 1 / -1;
    }
  }

  @media (max-width: 768px) {
    .site-shell {
      flex-direction: column;
      gap: var(--space-8);
      padding: var(--space-8) var(--space-4);
    }

    .site-sidebar {
      width: auto;
      padding-right: 0;
      padding-bottom: var(--space-8);
      border-right: 0;
      border-bottom: 1px solid var(--line);
    }

    .site-main {
      max-width: none;
    }

    .search-dialog {
      margin-top: var(--space-4);
    }
  }
}