@font-face{
  font-family:'IBM Plex Sans';
  font-style:normal;
  font-weight:400;
  font-display:swap;
  src:url('../fonts/ibm-plex-sans-latin-400-normal.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Sans';
  font-style:normal;
  font-weight:500;
  font-display:swap;
  src:url('../fonts/ibm-plex-sans-latin-500-normal.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Sans';
  font-style:normal;
  font-weight:600;
  font-display:swap;
  src:url('../fonts/ibm-plex-sans-latin-600-normal.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Sans';
  font-style:normal;
  font-weight:700;
  font-display:swap;
  src:url('../fonts/ibm-plex-sans-latin-700-normal.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Mono';
  font-style:normal;
  font-weight:400;
  font-display:swap;
  src:url('../fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Mono';
  font-style:normal;
  font-weight:500;
  font-display:swap;
  src:url('../fonts/ibm-plex-mono-latin-500-normal.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Mono';
  font-style:normal;
  font-weight:600;
  font-display:swap;
  src:url('../fonts/ibm-plex-mono-latin-600-normal.woff2') format('woff2');
}

  :root{
    --bg:#f5f7fb;
    --surface:#ffffff;
    --surface-2:#eef1f8;
    --text:#171b26;
    --text-muted:#5c6478;
    --border:#dde2ee;
    --accent:#3454d1;
    --accent-strong:#25399a;
    --accent-soft:#e7ebfb;
    --code-bg-solid:#12152a;
    --code-text:#dfe4fb;
    --code-key:#8fb4ff;
    --code-str:#ffcf86;
    --code-com:#7c84a8;
    --danger:#c23a3a;
    --danger-soft:#fbe9e9;
    --ok:#1c7a4d;
    --ok-soft:#e5f4ea;
    --post:#25399a;
    --get:#1c7a4d;
    --put:#a15c07;
    --shadow: 0 1px 2px rgba(23,27,38,.04), 0 10px 28px -14px rgba(23,27,38,.14);
    --grid-line: rgba(52,84,209,.08);
    color-scheme: light;
  }
  @media (prefers-color-scheme: dark){
    :root:not([data-theme="light"]){
      --bg:#0f1117; --surface:#161926; --surface-2:#1b1f2e; --text:#e9ecf7; --text-muted:#9aa1bd;
      --border:#2a2f42; --accent:#7c98ff; --accent-strong:#a9bcff; --accent-soft:#1d2440;
      --code-bg-solid:#0a0c16; --code-text:#dfe4fb; --code-key:#8fb4ff; --code-str:#ffcf86; --code-com:#6b7291;
      --danger:#e2897f; --danger-soft:#2c1a19; --ok:#7fd9ae; --ok-soft:#132a20;
      --post:#a9bcff; --get:#7fd9ae; --put:#e3b673;
      --shadow: 0 1px 2px rgba(0,0,0,.3), 0 10px 28px -14px rgba(0,0,0,.6);
      --grid-line: rgba(124,152,255,.10);
      color-scheme: dark;
    }
  }
  :root[data-theme="dark"]{
    --bg:#0f1117; --surface:#161926; --surface-2:#1b1f2e; --text:#e9ecf7; --text-muted:#9aa1bd;
    --border:#2a2f42; --accent:#7c98ff; --accent-strong:#a9bcff; --accent-soft:#1d2440;
    --code-bg-solid:#0a0c16; --code-text:#dfe4fb; --code-key:#8fb4ff; --code-str:#ffcf86; --code-com:#6b7291;
    --danger:#e2897f; --danger-soft:#2c1a19; --ok:#7fd9ae; --ok-soft:#132a20;
    --post:#a9bcff; --get:#7fd9ae; --put:#e3b673;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 10px 28px -14px rgba(0,0,0,.6);
    --grid-line: rgba(124,152,255,.10);
    color-scheme: dark;
  }

  *{box-sizing:border-box;}
  body{
    margin:0; background:var(--bg); color:var(--text);
    font-family:'IBM Plex Sans', system-ui, -apple-system, sans-serif;
    font-size:15px; line-height:1.6;
  }
  a{ color:var(--accent-strong); }
  code, pre, .mono{ font-family:'IBM Plex Mono', ui-monospace, Menlo, Consolas, monospace; }
  input, select{ font-family:inherit; }

  .wrap{ max-width:960px; margin:0 auto; padding-inline:20px; }

  /* Top nav */
  .topnav{
    position:sticky; top:env(safe-area-inset-top,0px); z-index:20;
    background:color-mix(in srgb, var(--bg) 86%, transparent);
    backdrop-filter:blur(10px); border-bottom:1px solid var(--border);
  }
  .topnav-inner{ max-width:960px; margin:0 auto; padding:12px 20px; display:flex; align-items:center; gap:22px; }
  .brand{ display:flex; align-items:center; gap:9px; margin-right:auto; }
  .brand-mark{
    width:26px;height:26px;border-radius:7px;
    background:linear-gradient(135deg, var(--accent), var(--accent-strong));
    display:flex;align-items:center;justify-content:center; flex:none;
  }
  .brand-mark svg{ width:14px;height:14px; }
  .brand span{ font-size:13.5px; font-weight:700; letter-spacing:.01em; }
  .topnav-links{ display:flex; gap:18px; }
  .topnav-links a{ text-decoration:none; color:var(--text-muted); font-size:13px; font-weight:500; }
  .topnav-links a:hover{ color:var(--text); }
  @media (max-width:760px){ .topnav-links{ display:none; } }

  /* Hero */
  .hero{ position:relative; padding-block:60px 48px; overflow:hidden; }
  .hero::before{
    content:""; position:absolute; inset:0;
    background-image: linear-gradient(var(--grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size:34px 34px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, black 40%, transparent 100%);
    pointer-events:none;
  }
  .hero-inner{ position:relative; }
  .eyebrow{
    font-family:'IBM Plex Mono',monospace; font-size:12px; letter-spacing:.06em; color:var(--accent-strong);
    text-transform:uppercase; margin-bottom:16px; display:inline-flex; align-items:center; gap:8px;
    background:var(--accent-soft); padding:6px 12px 6px 10px; border-radius:99px;
  }
  .eyebrow .dot{ width:6px;height:6px;border-radius:50%;background:var(--accent); }
  h1{ font-size:clamp(30px,5.2vw,42px); margin:0 0 16px; text-wrap:balance; letter-spacing:-.015em; line-height:1.08; max-width:16ch; }
  .lede{ color:var(--text-muted); font-size:16.5px; max-width:58ch; margin:0 0 28px; }

  .meta-row{ display:flex; flex-wrap:wrap; gap:10px; }
  .meta-chip{
    display:flex; align-items:center; gap:6px; background:var(--surface); border:1px solid var(--border);
    padding:8px 13px; border-radius:9px; font-size:12.5px; color:var(--text-muted); box-shadow:var(--shadow);
  }
  .meta-chip b{ color:var(--text); font-weight:600; }

  main{ padding-bottom:72px; }
  section.block{ padding-block:36px; border-top:1px solid var(--border); scroll-margin-top:calc(env(safe-area-inset-top,0px) + 64px); }
  section.block:first-of-type{ border-top:none; }
  .block-head{ display:flex; align-items:baseline; gap:12px; margin-bottom:8px; flex-wrap:wrap; }
  .section-num{
    font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--accent-strong);
    background:var(--accent-soft); padding:2px 8px; border-radius:6px; flex:none;
  }
  h2{ font-size:22px; margin:0; letter-spacing:-.01em; }
  section.block > p.intro{ color:var(--text-muted); margin:10px 0 22px; max-width:68ch; font-size:15px; }
  section.block h3{ font-size:15px; margin:22px 0 8px; }
  section.block p{ margin:0 0 10px; }
  section.block ul, section.block ol{ margin:0 0 12px; padding-left:20px; }
  section.block li{ margin-bottom:6px; }

  .group-title{ display:flex; align-items:center; gap:10px; margin:34px 0 4px; }
  .group-title:first-of-type{ margin-top:6px; }
  .group-title .pill{
    font-family:'IBM Plex Mono',monospace; font-size:11px; text-transform:uppercase; letter-spacing:.05em;
    background:var(--surface-2); border:1px solid var(--border); padding:3px 10px; border-radius:99px; color:var(--text-muted);
  }
  .group-title::after{ content:""; flex:1; height:1px; background:var(--border); }

  /* Endpoint cards */
  .endpoint-card{
    border:1px solid var(--border); border-radius:14px; margin:14px 0; overflow:hidden;
    background:var(--surface); box-shadow:var(--shadow);
  }
  .endpoint-head{
    display:flex; align-items:center; gap:11px; flex-wrap:wrap; padding:14px 18px;
    background:var(--surface-2); border-bottom:1px solid var(--border);
  }
  .method{
    font-family:'IBM Plex Mono',monospace; font-weight:700; font-size:12px;
    padding:3px 9px; border-radius:6px; letter-spacing:.02em; color:var(--surface);
  }
  .method.get{ background:var(--get); }
  .method.post{ background:var(--post); }
  .method.put{ background:var(--put); }
  .endpoint-path{ font-family:'IBM Plex Mono',monospace; font-size:13.5px; }
  .endpoint-desc{ color:var(--text-muted); font-size:13px; margin-left:auto; }
  .endpoint-body{ padding:18px; display:flex; flex-direction:column; gap:15px; }

  table.params{ width:100%; border-collapse:collapse; font-size:13px; }
  table.params th{
    text-align:left; font-weight:600; color:var(--text-muted); font-size:11px;
    text-transform:uppercase; letter-spacing:.05em; padding:6px 10px; border-bottom:1px solid var(--border);
  }
  table.params td{ padding:8px 10px; border-bottom:1px solid var(--border); vertical-align:top; }
  table.params tr:last-child td{ border-bottom:none; }
  table.params td.field{ font-family:'IBM Plex Mono',monospace; color:var(--accent-strong); white-space:nowrap; }
  .params-wrap{ overflow-x:auto; }

  pre.code{
    background:var(--code-bg-solid); color:var(--code-text); border-radius:10px; padding:16px 17px;
    overflow-x:auto; font-size:12.5px; line-height:1.65; margin:0; white-space:pre;
  }
  pre.code .k{ color:var(--code-key); }
  pre.code .s{ color:var(--code-str); }
  pre.code .c{ color:var(--code-com); }
  .code-label{
    font-family:'IBM Plex Mono',monospace; font-size:10.5px; text-transform:uppercase;
    letter-spacing:.06em; color:var(--text-muted); margin-bottom:7px; display:block;
  }
  .grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:14px; }
  @media (max-width:640px){ .grid-2{ grid-template-columns:1fr; } }

  .callout{
    display:flex; gap:11px; padding:14px 16px; border-radius:11px; border:1px solid var(--border);
    font-size:13.5px; margin:16px 0;
  }
  .callout svg{ flex:none; width:17px; height:17px; margin-top:1px; }
  .callout.warn{ background:var(--danger-soft); border-color:color-mix(in srgb, var(--danger) 30%, var(--border)); color:var(--danger); }
  .callout.info{ background:var(--accent-soft); border-color:color-mix(in srgb, var(--accent) 25%, var(--border)); color:var(--accent-strong); }
  .callout p{ margin:0; color:inherit; }
  .callout b{ color:inherit; }

  .jump-row{ display:flex; flex-wrap:wrap; gap:8px; margin-top:26px; }
  .jump-chip{
    text-decoration:none; font-size:12.5px; color:var(--text);
    background:var(--surface); border:1px solid var(--border); padding:7px 13px; border-radius:99px;
  }
  .jump-chip:hover{ border-color:var(--accent); color:var(--accent-strong); }

  /* Flow */
  .flow{ display:flex; flex-direction:column; gap:0; margin:6px 0; }
  .flow-step{ display:grid; grid-template-columns:30px 1fr; gap:16px; position:relative; padding-bottom:22px; }
  .flow-step:last-child{ padding-bottom:0; }
  .flow-step::before{ content:""; position:absolute; left:14px; top:30px; bottom:0; width:1.5px; background:var(--border); }
  .flow-step:last-child::before{ display:none; }
  .flow-num{
    width:30px;height:30px;border-radius:50%; background:var(--surface); border:1.5px solid var(--accent);
    color:var(--accent-strong); display:flex;align-items:center;justify-content:center;
    font-family:'IBM Plex Mono',monospace; font-size:12.5px; font-weight:700; flex:none; z-index:1;
  }
  .flow-body b{ display:block; font-size:14.5px; margin-bottom:3px; }
  .flow-body span{ color:var(--text-muted); font-size:13.5px; }
  .flow-body code{ font-size:12px; background:var(--surface-2); padding:1px 5px; border-radius:4px; }

  .status-table td.status-code{ font-family:'IBM Plex Mono',monospace; font-weight:600; }
  .status-ok{ color:var(--get); }
  .status-err{ color:var(--danger); }

  /* Language tabs (code snippets) */
  .snippet{ border:1px solid var(--border); border-radius:10px; overflow:hidden; }
  .snippet-tabs{ display:flex; gap:2px; background:var(--surface-2); border-bottom:1px solid var(--border); padding:4px; flex-wrap:wrap; }
  .snippet-tab{
    font-family:'IBM Plex Mono',monospace; font-size:11.5px; padding:6px 12px; border-radius:6px;
    background:transparent; border:none; color:var(--text-muted); cursor:pointer;
  }
  .snippet-tab.active{ background:var(--surface); color:var(--text); box-shadow:var(--shadow); }
  .snippet-panels{ position:relative; }
  .snippet-panel{ display:none; }
  .snippet-panel.active{ display:block; }
  .snippet-panel pre.code{ border-radius:0; }
  .snippet-copy{
    position:absolute; top:8px; right:8px;
    font-family:'IBM Plex Sans',sans-serif; font-size:11px;
    background:rgba(255,255,255,.08); color:var(--code-text);
    border:1px solid rgba(255,255,255,.15); border-radius:6px;
    padding:4px 9px; cursor:pointer;
  }
  .snippet-copy:hover{ background:rgba(255,255,255,.16); }
  .snippet-wrap-inner{ position:relative; }

  /* Sandbox */
  .sandbox-grid{ display:grid; grid-template-columns:280px 1fr; gap:18px; align-items:start; }
  @media (max-width:760px){ .sandbox-grid{ grid-template-columns:1fr; } }
  .sandbox-panel{
    background:var(--surface); border:1px solid var(--border); border-radius:14px; padding:18px;
    box-shadow:var(--shadow); display:flex; flex-direction:column; gap:14px;
  }
  .field{ display:flex; flex-direction:column; gap:5px; }
  .field label{ font-size:12px; font-weight:600; color:var(--text-muted); }
  .field label .req{ color:var(--danger); }
  .field input, .field select{
    background:var(--bg); border:1px solid var(--border); border-radius:8px;
    padding:8px 10px; font-size:13px; color:var(--text); width:100%;
  }
  .field input:focus, .field select:focus{ outline:2px solid var(--accent); outline-offset:1px; }
  .field .hint{ font-size:11px; color:var(--text-muted); }
  .sandbox-endpoint-picker optgroup{ font-weight:600; }
  .sandbox-params{ display:flex; flex-direction:column; gap:10px; border-top:1px solid var(--border); padding-top:12px; }
  .sandbox-params:empty{ display:none; }
  .try-btn{
    font-family:'IBM Plex Sans',sans-serif; font-weight:600; font-size:13.5px;
    background:var(--accent); color:#fff; border:none; border-radius:9px;
    padding:10px 16px; cursor:pointer; display:inline-flex; align-items:center; gap:8px; justify-content:center;
  }
  .try-btn:hover{ background:var(--accent-strong); }
  .response-panel{ margin-top:4px; }
  .response-panel[hidden]{ display:none; }
  .response-status{
    display:inline-flex; align-items:center; gap:7px; font-family:'IBM Plex Mono',monospace;
    font-size:12px; font-weight:600; padding:4px 10px; border-radius:7px; margin-bottom:10px;
    background:var(--ok-soft); color:var(--ok);
  }

  .glossary-grid{ display:grid; grid-template-columns:1fr 1fr; gap:16px 24px; }
  @media (max-width:640px){ .glossary-grid{ grid-template-columns:1fr; } }
  .glossary-grid dt{ font-weight:600; font-size:14px; margin-bottom:3px; }
  .glossary-grid dd{ margin:0; color:var(--text-muted); font-size:13.5px; }

  footer.page-foot{
    border-top:1px solid var(--border); padding-block:22px 40px;
    color:var(--text-muted); font-size:12.5px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px;
  }

  section.block h3.section-sub{ margin-top:24px; }
  section.block p.endpoint-note{ margin:0; color:var(--text-muted); font-size:13px; }