:root {
      --bg: #fff;
      --bg-soft: #f7f7f8;
      --bg-code: #f4f3f0;
      --text: #1c1c1f;
      --code: #ececec;
      --muted: #6a6a72;
      --border: #e4e4e8;
      --accent: #235ec9;
      --accent-soft: #e8f0fc;
      --get: #1f7a3a;
      --post: #b3651b;
      --del: #b03030;
      --put: #6b4ab0;
    }
    @media (prefers-color-scheme: dark) {
      :root {
        --bg: #0d0d0d;
        --bg-soft: #1a1a1a;
        --bg-code: #1e1e1e;
        --text: #e8e8e8;
        --code: #1c1c1f;
        --muted: #aaaaaa;
        --border: #2d2d2d;
        --accent: #64b5f6;
        --accent-soft: #1a3a52;
        --get: #66bb6a;
        --post: #ffb74d;
        --del: #ef5350;
        --put: #ba68c8;
      }
    }
    * { box-sizing: border-box; }
    html, body { margin: 0; height: 100%; }
    body {
      font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
      color: var(--text);
      background: var(--bg);
      display: grid;
      grid-template-columns: 320px 1fr;
      grid-template-rows: auto 1fr;
      grid-template-areas: "header header" "sidebar main";
    }
    header {
      grid-area: header;
      padding: 14px 22px;
      border-bottom: 1px solid var(--border);
      display: flex;
      align-items: center;
      gap: 18px;
      background: var(--bg-soft);
    }
    header h1 { margin: 0; font-size: 16px; font-weight: 600; }
    header a { color: var(--text); text-decoration: none; }
    header a:hover { color: var(--accent); }
    header .subtitle { color: var(--muted); font-size: 12px; }
    header .spacer { flex: 1; }
    header .auth {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 12px;
    }
    header .auth label { color: var(--text); }
    header .auth input {
      font: 12px ui-monospace, SFMono-Regular, Menlo, monospace;
      padding: 4px 8px;
      border: 1px solid var(--border);
      border-radius: 4px;
      width: 240px;
      color: var(--text);
      background: var(--bg);
    }
    nav.sidebar {
      grid-area: sidebar;
      border-right: 1px solid var(--border);
      overflow-y: auto;
      padding: 8px 0 24px;
      background: var(--bg-soft);
      resize: horizontal;
    }
    nav .filter {
      padding: 8px 14px;
      position: sticky;
      top: 0;
      background: var(--bg-soft);
      border-bottom: 1px solid var(--border);
    }
    nav .filter input {
      width: 100%;
      padding: 6px 8px;
      border: 1px solid var(--border);
      border-radius: 4px;
      font: 13px system-ui;
      color: var(--text);
      background: var(--bg);
    }
    nav .group {
      padding: 14px 8px 4px 14px;
      color: var(--muted);
      font-size: 11px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    nav button.route {
      display: flex;
      gap: 8px;
      align-items: baseline;
      width: 100%;
      padding: 6px 14px;
      background: none;
      border: none;
      text-align: left;
      cursor: pointer;
      font: 13px ui-monospace, SFMono-Regular, Menlo, monospace;
      color: var(--text);
    }
    nav button.route:hover { background: rgba(0,0,0,0.04); }
    nav button.route.active { background: var(--accent-soft); }
    nav button.route .method {
      font-weight: 700;
      font-size: 10px;
      letter-spacing: 0.05em;
      min-width: 38px;
      text-align: right;
    }
    .method-GET { color: var(--get); }
    .method-POST { color: var(--post); }
    .method-DELETE { color: var(--del); }
    .method-PUT { color: var(--put); }
    main {
      grid-area: main;
      padding: 22px 28px;
      overflow-y: auto;
    }
    main .placeholder {
      color: var(--muted);
      padding-top: 60px;
      text-align: center;
    }
    main h2 {
      margin: 0 0 4px;
      font-size: 20px;
      font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    }
    main h2 .method {
      font-weight: 700;
      font-size: 13px;
      margin-right: 8px;
    }
    main .section {
      margin: 22px 0;
    }
    main .section h3 {
      margin: 0 0 6px;
      font-size: 12px;
      font-weight: 600;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.06em;
    }
    main pre {
      background: var(--bg-code);
      padding: 10px 12px;
      border-radius: 4px;
      font: 12px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
      overflow-x: auto;
      margin: 0;
    }
    .badge {
      display: inline-block;
      font-size: 11px;
      padding: 1px 6px;
      border-radius: 3px;
      background: var(--bg-soft);
      border: 1px solid var(--border);
      color: var(--muted);
      margin-left: 6px;
    }
    .badge.public { background: #e7f5ec; border-color: #c5e6cf; color: #1f7a3a; }
    a { color: var(--accent); }
    .form-row {
      display: grid;
      grid-template-columns: 160px 1fr;
      gap: 10px;
      align-items: baseline;
      margin: 6px 0;
    }
    .form-row label {
      font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
      font-size: 13px;
      color: var(--text);
    }
    .form-row label .req { color: var(--del); margin-left: 2px; }
    .form-row label .hint {
      display: block;
      font-family: system-ui;
      color: var(--muted);
      font-size: 11px;
      margin-top: 2px;
    }
    /* `.body-block textarea` (the "Request body (JSON)" field) is listed here
       rather than styled on its own: it sits in .body-pane, never .form-row,
       so it previously matched no themed rule at all and fell back to the UA
       default - readable in light mode, black-on-white in dark. Sharing the
       selector keeps it from drifting away from the other inputs again. */
    .form-row input[type="text"],
    .form-row input[type="number"],
    .form-row select,
    .form-row textarea,
    .body-block textarea {
      font: 13px ui-monospace, SFMono-Regular, Menlo, monospace;
      padding: 5px 8px;
      border: 1px solid var(--border);
      border-radius: 4px;
      background: var(--bg);
      color: var(--text);
    }
    .form-row textarea { min-height: 120px; resize: vertical; }
    details summary {
      cursor: pointer;
      color: var(--muted);
      font-size: 12px;
      margin: 6px 0;
    }
    details summary:hover { color: var(--text); }
    .send-row {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 14px;
    }
    button.send {
      padding: 7px 18px;
      background: var(--accent);
      color: white;
      border: none;
      border-radius: 4px;
      font: 600 13px system-ui;
      cursor: pointer;
    }
    button.send:disabled { opacity: 0.5; cursor: not-allowed; }
    .url-preview {
      font: 12px ui-monospace, SFMono-Regular, Menlo, monospace;
      color: var(--muted);
      flex: 1;
      overflow-x: auto;
      white-space: nowrap;
    }
    .response-meta {
      font: 12px ui-monospace, SFMono-Regular, Menlo, monospace;
      color: var(--muted);
      margin-bottom: 6px;
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }
    .response-meta .status-ok { color: var(--get); font-weight: 600; }
    .response-meta .status-err { color: var(--del); font-weight: 600; }
    .response-meta .status-info { color: var(--accent); font-weight: 600; }
    .tabs {
      display: flex;
      gap: 2px;
      border-bottom: 1px solid var(--border);
      margin-top: 4px;
    }
    .tab-btn {
      padding: 6px 14px;
      background: none;
      border: 1px solid transparent;
      border-bottom: none;
      border-radius: 4px 4px 0 0;
      font: 12px system-ui;
      cursor: pointer;
      color: var(--muted);
    }
    .tab-btn.active {
      color: var(--text);
      background: var(--bg-code);
      border-color: var(--border);
    }
    .tab-actions {
      margin-left: auto;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .copy-btn {
      padding: 4px 10px;
      font: 11px system-ui;
      background: var(--bg-soft);
      border: 1px solid var(--border);
      border-radius: 3px;
      cursor: pointer;
      color: var(--muted);
    }
    .copy-btn:hover { color: var(--text); }
    .copy-btn.copied { color: var(--get); }
    .snippet-pane pre { border-radius: 0 4px 4px 4px; margin-top: 0; }
    .guide-content { max-width: 720px; }
    .guide-content h1 { font-size: 22px; margin: 4px 0 16px; }
    .guide-content h2 { font-size: 16px; margin: 22px 0 6px; }
    .guide-content h3 { font-size: 14px; margin: 18px 0 4px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
    .guide-content p { margin: 0 0 10px; }
    .guide-content code { color: var(--text); background: var(--bg-code); padding: 1px 5px; border-radius: 3px; font: 12px ui-monospace, SFMono-Regular, Menlo, monospace; }
    .guide-content pre code { background: none; padding: 0; }
    .guide-content ul { padding-left: 22px; margin: 6px 0; }
    .guide-content li { margin: 2px 0; }
    .guide-content a { color: var(--accent); }
    .shape-doc {
      font-size: 13px;
    }
    .shape-doc .route-blurb {
      color: var(--text);
      margin: 0 0 12px;
      max-width: 720px;
    }
    .shape-doc .field-group {
      margin-bottom: 12px;
    }
    .shape-doc .field-group h4 {
      font-size: 11px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--muted);
      margin: 0 0 4px;
    }
    .shape-table {
      border-collapse: collapse;
      width: 100%;
      max-width: 920px;
    }
    .shape-table th, .shape-table td {
      padding: 6px 10px;
      border-bottom: 1px solid var(--border);
      text-align: left;
      vertical-align: top;
      font-size: 12px;
    }
    .shape-table th {
      color: var(--muted);
      font-weight: 600;
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 0.04em;
    }
    .shape-table td.col-name {
      font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
      white-space: nowrap;
    }
    .shape-table td.col-type {
      font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
      color: var(--accent);
      white-space: nowrap;
    }
    .shape-table .req-flag { color: var(--del); font-weight: 700; font-size: 14px; }
    .shape-table .opt-flag { color: var(--muted); }
    .shape-table .constraints {
      font: 11px ui-monospace, SFMono-Regular, Menlo, monospace;
      color: var(--muted);
    }
    .shape-table .depth-1 { padding-left: 22px; }
    .shape-table .depth-1 .col-name::before { content: '↳ '; color: var(--muted); }
    .body-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-top: 6px;
    }
    @media (max-width: 900px) {
      .body-block { grid-template-columns: 1fr; }
    }
    .body-block .body-pane {
      display: flex;
      flex-direction: column;
      min-width: 0;
    }
    .body-block .body-pane h5 {
      font-size: 11px;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.04em;
      margin: 0 0 4px;
    }
    .body-block textarea {
      min-height: 320px;
      flex: 1;
      resize: vertical;
    }
    .body-builder {
      border: 1px solid var(--border);
      border-radius: 4px;
      padding: 10px;
      background: var(--bg-soft);
      max-height: 460px;
      overflow-y: auto;
    }
    .bb-row {
      display: grid;
      grid-template-columns: 120px 1fr;
      gap: 8px;
      align-items: baseline;
      margin: 4px 0;
    }
    .bb-row label {
      font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
      font-size: 12px;
    }
    .bb-row label .req { color: var(--del); margin-left: 2px; }
    .bb-row input[type="text"],
    .bb-row input[type="number"],
    .bb-row select {
      font: 12px ui-monospace, SFMono-Regular, Menlo, monospace;
      padding: 4px 6px;
      border: 1px solid var(--border);
      border-radius: 3px;
      background: var(--bg);
      color: var(--text);
      min-width: 0;
    }
    .bb-array {
      margin: 10px 0;
      border-top: 1px dashed var(--border);
      padding-top: 8px;
    }
    .bb-array-heading {
      font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 4px;
    }
    .bb-array-item {
      position: relative;
      border-left: 2px solid var(--border);
      padding: 4px 8px 4px 10px;
      margin: 6px 0;
    }
    .bb-add {
      font: 12px system-ui;
      padding: 3px 10px;
      margin-top: 4px;
      background: var(--bg);
      border: 1px dashed var(--border);
      border-radius: 3px;
      cursor: pointer;
      color: var(--muted);
    }
    .bb-add:hover { color: var(--text); border-color: var(--accent); }
    .bb-remove {
      position: absolute;
      top: 2px;
      right: 2px;
      width: 18px;
      height: 18px;
      padding: 0;
      line-height: 16px;
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 50%;
      cursor: pointer;
      color: var(--muted);
      font-size: 14px;
    }
    .bb-remove:hover { color: var(--del); border-color: var(--del); }
    .body-block .body-pane .hint {
      font-size: 11px;
      color: var(--muted);
      margin-top: 4px;
    }
    .footer-note {
      grid-column: 1 / -1;
      padding: 10px 22px;
      color: var(--muted);
      font-size: 12px;
      border-top: 1px solid var(--border);
    }
    @media (prefers-color-scheme: dark) {
      .logo-img { filter: invert(1); }
    }
    .resource-card {
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 16px 18px;
      margin: 14px 0;
      background: var(--bg-soft);
    }
    .resource-head {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 12px;
      align-items: flex-start;
    }
    .resource-name {
      font: 600 15px ui-monospace, SFMono-Regular, Menlo, monospace;
      color: var(--text);
    }
    .resource-routes {
      display: flex;
      flex-direction: column;
      gap: 3px;
      align-items: flex-end;
    }
    .resource-route {
      display: flex;
      align-items: center;
      gap: 8px;
      font: 12px ui-monospace, SFMono-Regular, Menlo, monospace;
    }
    .resource-route code { background: none; padding: 0; color: var(--muted); }
    .method-badge {
      font-weight: 700;
      font-size: 10px;
      letter-spacing: 0.05em;
      min-width: 40px;
      text-align: right;
    }
    .resource-title {
      margin-top: 10px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text);
    }
    .resource-desc { margin: 2px 0 0; color: var(--muted); font-size: 13px; }
    .resource-block { margin-top: 12px; }
    .resource-block h4 {
      margin: 0 0 4px;
      font-size: 11px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--muted);
    }
    .resource-subnote { margin: 0 0 6px; font-size: 12px; color: var(--muted); font-style: italic; }
    .resource-defs { margin: 0; padding-left: 0; list-style: none; }
    .resource-defs li { margin: 3px 0; font-size: 13px; line-height: 1.5; }
    .resource-defs code {
      background: var(--bg-code);
      padding: 1px 5px;
      border-radius: 3px;
      font: 12px ui-monospace, SFMono-Regular, Menlo, monospace;
    }
    .resource-deftable { border-collapse: collapse; width: 100%; font-size: 13px; }
    .resource-deftable td {
      padding: 4px 10px 4px 0;
      vertical-align: top;
      line-height: 1.5;
      border-bottom: 1px solid var(--border);
    }
    .resource-deftable tr:last-child td { border-bottom: none; }
    .resource-deftable td:first-child { white-space: nowrap; width: 1%; }
    .resource-deftable code {
      background: var(--bg-code);
      padding: 1px 5px;
      border-radius: 3px;
      font: 12px ui-monospace, SFMono-Regular, Menlo, monospace;
    }
    .resource-assoc summary {
      cursor: pointer;
      font-size: 11px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--muted);
    }
    .resource-assoc summary code { text-transform: none; letter-spacing: 0; }
    .resource-assoc[open] summary { margin-bottom: 6px; }