@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

  :root {
    --primary: #1a7fd4;
    --primary-dark: #1260a8;
    --primary-light: #e8f4fd;
    --accent: #E8470A;
    --dark: #0d1b2e;
    --gray-900: #0f172a;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50:  #f9fafb;
    --green:    #065f46;
    --green-bg: #ecfdf5;
    --blue-bg:  #eff6ff;
    --yellow-bg:#fffbeb;
    --yellow:   #92400e;
    --red-bg:   #fef2f2;
    --red:      #b91c1c;
    --code-bg:  #0d1b2e;
    --code-text:#e2e8f0;

    --bg:         #ffffff;
    --surface:    #ffffff;
    --surface-2:  #f9fafb;
    --text:       var(--gray-700);
    --text-strong:var(--dark);
    --border:     var(--gray-200);
    --sidebar-bg: var(--gray-50);
    --code-border:#1e3050;
    --radius: 8px;
  }

  [data-theme="dark"] {
    --bg:         #0b1220;
    --surface:    #0f1b2e;
    --surface-2:  #111c30;
    --text:       #cbd5e1;
    --text-strong:#f1f5f9;
    --border:     #1e2a42;
    --sidebar-bg: #0d1728;
    --primary-light: #11304d;
    --blue-bg:   #0f1f38;
    --green-bg:  #0a2b21;
    --yellow-bg: #2a1e05;
    --red-bg:    #2a0f0f;
    --gray-50:   #0f1b2e;
    --gray-100:  #111c30;
    --gray-200:  #1e2a42;
    --gray-400:  #64748b;
    --gray-600:  #94a3b8;
    --gray-700:  #cbd5e1;
    --gray-800:  #e2e8f0;
    --dark:      #f1f5f9;
    --primary-dark:#7dd3fc;
    --code-bg:   #020617;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }

  html { scroll-behavior: smooth; }

  body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 14px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
  }

  /* ─── APP SHELL ─── */
  .app {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 100vh;
  }

  /* ─── SIDEBAR ─── */
  .sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border);
    padding: 24px 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
  }

  .sidebar-head {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 0 16px 16px;
    padding: 18px 16px;
    background: #2A6FCE;
    border-radius: 10px;
    box-shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
  }
  .sidebar-head .logo-badge {
    display: inline-flex;
    align-items: center;
  }
  .sidebar-head .logo-badge img {
    height: 40px;
    width: auto;
    display: block;
  }
  .sidebar-head .api-label {
    font-size: 22px;
    font-weight: 300;
    letter-spacing: 0.5px;
    color: #fff;
    padding-left: 12px;
    border-left: 1px solid rgba(255, 255, 255, 0.35);
    line-height: 1;
  }

  .lang-switcher {
    display: inline-flex;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 2px;
    margin: 14px 20px 0;
    width: max-content;
  }
  .lang-switcher a {
    font-size: 11px; font-weight: 600;
    padding: 3px 10px; border-radius: 4px;
    text-decoration: none;
    color: var(--gray-500);
    letter-spacing: 0.5px;
  }
  .lang-switcher a:hover { color: var(--text-strong); }
  .lang-switcher a.active {
    background: var(--primary);
    color: #fff;
  }

  .sidebar-search {
    padding: 14px 20px 10px;
  }
  .sidebar-search input {
    width: 100%;
    padding: 7px 10px 7px 30px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    border-radius: 6px;
    font-size: 12.5px;
    font-family: inherit;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><circle cx='11' cy='11' r='8'/><path d='M21 21l-4.35-4.35'/></svg>");
    background-repeat: no-repeat;
    background-position: 9px center;
  }
  .sidebar-search input:focus { outline: 2px solid var(--primary); outline-offset: 1px; }
  .sidebar-search kbd {
    position: absolute; right: 26px; margin-top: -25px;
    font-family: inherit; font-size: 10px;
    background: var(--surface-2); color: var(--gray-500);
    padding: 1px 5px; border-radius: 3px; border: 1px solid var(--border);
    pointer-events: none;
  }

  .sidebar nav {
    padding: 10px 12px 24px;
    flex: 1;
  }
  .sidebar-group-title {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 1.2px; color: var(--gray-400);
    padding: 14px 12px 6px;
  }
  .sidebar nav a {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    color: var(--gray-600);
    text-decoration: none;
    border-left: 2px solid transparent;
    margin-left: -2px;
    line-height: 1.45;
  }
  .sidebar nav a:hover { background: var(--surface-2); color: var(--text-strong); }
  .sidebar nav a.active {
    background: var(--primary-light);
    color: var(--primary-dark);
    border-left-color: var(--primary);
    font-weight: 600;
  }
  .sidebar nav a .num {
    font-size: 10px; font-weight: 600; color: var(--gray-400);
    min-width: 14px; text-align: right;
  }
  .sidebar nav a.active .num { color: var(--primary); }

  .sidebar-downloads {
    padding: 12px 20px;
    border-top: 1px solid var(--border);
  }
  .sidebar-downloads-title {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 1.2px; color: var(--gray-400);
    margin-bottom: 8px;
  }
  .sidebar-downloads ul {
    list-style: none; padding: 0; margin: 0;
    display: flex; flex-direction: column; gap: 2px;
  }
  .sidebar-downloads li a {
    display: flex; align-items: center; gap: 8px;
    font-size: 12.5px; color: var(--gray-600);
    padding: 5px 8px;
    border-radius: 5px;
    line-height: 1.3;
    text-decoration: none;
  }
  .sidebar-downloads li a:hover {
    background: var(--surface-2);
    color: var(--text-strong);
  }
  .sidebar-downloads .dl-icon {
    color: var(--primary);
    font-size: 13px;
  }

  .sidebar-foot {
    padding: 14px 20px 18px;
    border-top: 1px solid var(--border);
  }
  .sidebar-foot .other-apis-title {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 1.2px; color: var(--gray-400);
    margin-bottom: 8px;
  }
  .sidebar-foot ul.other-apis {
    list-style: none; padding: 0; margin: 0;
    display: flex; flex-direction: column; gap: 2px;
  }
  .sidebar-foot ul.other-apis li {
    font-size: 12.5px; color: var(--gray-600);
    padding: 5px 8px;
    border-radius: 5px;
    line-height: 1.3;
  }
  .sidebar-foot ul.other-apis li:hover {
    background: var(--surface-2);
    color: var(--text-strong);
  }

  .theme-toggle {
    background: transparent; border: 1px solid var(--border);
    border-radius: 6px; padding: 4px 8px;
    color: var(--text); cursor: pointer;
    font-size: 11px; font-family: inherit;
    display: flex; align-items: center; gap: 5px;
  }
  .theme-toggle:hover { background: var(--surface-2); }
  .theme-toggle .icon { font-size: 13px; }

  /* ─── MAIN ─── */
  .main {
    min-width: 0;
  }
  .topbar {
    position: sticky; top: 0; z-index: 5;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 14px 40px;
    display: flex; align-items: center; gap: 16px;
    backdrop-filter: saturate(180%) blur(6px);
    background: color-mix(in srgb, var(--bg) 85%, transparent);
  }
  .topbar .crumb {
    font-size: 18px; color: var(--text-strong);
    letter-spacing: -0.01em;
  }
  .topbar .crumb strong { color: var(--text-strong); font-weight: 700; }
  .topbar .spacer { flex: 1; }
  .topbar .pill {
    font-size: 11px; font-weight: 600;
    background: var(--primary-light); color: var(--primary-dark);
    border: 1px solid var(--border);
    padding: 3px 10px; border-radius: 100px;
  }
  .topbar .topbar-updated {
    font-size: 11px; color: var(--gray-500);
    white-space: nowrap;
  }
  .btn-pdf {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--primary); color: #fff;
    border: 0; border-radius: 6px;
    font: inherit; font-size: 12px; font-weight: 600;
    padding: 6px 12px; cursor: pointer;
    transition: background .15s;
  }
  .btn-pdf:hover { background: var(--primary-dark); }
  .btn-pdf svg { width: 14px; height: 14px; }

  .php-downloads {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
  }
  .php-download {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--white);
    color: var(--gray-800);
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all .15s ease;
  }
  .php-download::before {
    content: "⇩";
    font-size: 13px;
    color: var(--primary);
  }
  .php-download:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
  }

  .content {
    max-width: 920px;
    padding: 40px 48px 80px;
  }

  /* ─── TYPOGRAPHY ─── */
  h1, h2, h3, h4 { color: var(--text-strong); letter-spacing: -0.3px; font-weight: 700; }
  h1 {
    font-size: 34px; line-height: 1.15;
    margin-bottom: 10px; letter-spacing: -1px;
  }
  h1 span { color: var(--primary); }
  .page-lede {
    font-size: 16px; color: var(--gray-600); line-height: 1.7;
    max-width: 680px; margin-bottom: 30px;
  }
  h2 {
    font-size: 22px;
    margin-top: 48px;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; gap: 10px;
    scroll-margin-top: 70px;
  }
  h2 .section-num {
    display: inline-flex; align-items: center; justify-content: center;
    width: 26px; height: 26px;
    background: var(--primary); color: white;
    border-radius: 6px; font-size: 12px; font-weight: 700;
    flex-shrink: 0;
  }
  h3 {
    font-size: 16px; margin-top: 28px; margin-bottom: 10px;
    color: var(--text-strong); scroll-margin-top: 70px;
  }
  h4 {
    font-size: 12px; margin-top: 20px; margin-bottom: 8px;
    text-transform: uppercase; letter-spacing: 0.7px;
    color: var(--gray-500); font-weight: 700;
  }
  p { margin-bottom: 14px; }
  a { color: var(--primary); text-decoration: none; }
  a:hover { text-decoration: underline; }
  strong { font-weight: 600; color: var(--text-strong); }

  /* anchor link on hover for h2/h3 */
  .anchor-heading { position: relative; }
  .anchor-link {
    position: absolute; left: -22px; top: 50%; transform: translateY(-50%);
    opacity: 0; text-decoration: none; color: var(--gray-400);
    font-weight: 500; padding: 0 4px; transition: opacity .15s;
  }
  .anchor-heading:hover .anchor-link { opacity: 1; }

  /* ─── INLINE CODE ─── */
  code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 1px 6px;
    border-radius: 4px;
    border: 1px solid var(--border);
  }

  /* ─── CODE BLOCKS ─── */
  .code-block {
    margin: 14px 0 20px; border-radius: var(--radius); overflow: hidden;
    border: 1px solid var(--code-border);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    position: relative;
  }
  .code-block-header {
    display: flex; align-items: center; justify-content: space-between;
    background: #162033; padding: 7px 14px;
    border-bottom: 1px solid #1e3050;
  }
  [data-theme="dark"] .code-block-header { background: #081224; }
  .code-lang {
    font-family: 'JetBrains Mono', monospace; font-size: 10px;
    color: #5a7fa8; text-transform: uppercase; letter-spacing: 0.7px; font-weight: 600;
  }
  .copy-btn {
    background: transparent; border: 1px solid #273756; color: #8aa3c4;
    font-family: 'JetBrains Mono', monospace; font-size: 10px;
    padding: 3px 8px; border-radius: 5px; cursor: pointer;
    display: inline-flex; align-items: center; gap: 4px;
  }
  .copy-btn:hover { background: #1d2c46; color: #e2e8f0; }
  .copy-btn.copied { color: #86efac; border-color: #2f4a3a; }

  pre {
    background: var(--code-bg); color: var(--code-text);
    padding: 16px 18px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12.5px; line-height: 1.75;
    overflow-x: auto; margin: 0;
  }

  /* ─── LANG TABS ─── */
  .lang-tabs {
    display: flex; gap: 2px;
    background: #162033; padding: 6px 14px 0;
    border-bottom: 1px solid #1e3050;
  }
  [data-theme="dark"] .lang-tabs { background: #081224; }
  .lang-tabs button {
    background: transparent; border: 0; color: #5a7fa8;
    font-family: 'JetBrains Mono', monospace; font-size: 11px;
    font-weight: 600; letter-spacing: 0.4px;
    padding: 6px 12px; cursor: pointer; border-radius: 5px 5px 0 0;
    text-transform: uppercase;
  }
  .lang-tabs button:hover { color: #cbd5e1; }
  .lang-tabs button.active { background: var(--code-bg); color: #e2e8f0; }
  .lang-panel { display: none; }
  .lang-panel.active { display: block; }

  /* ─── ENDPOINT BADGE ─── */
  .endpoint {
    display: inline-flex; align-items: center; gap: 10px;
    background: var(--primary-light);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 14px; margin-bottom: 18px;
  }
  .method {
    background: var(--primary); color: white;
    font-weight: 700; font-size: 11px;
    padding: 3px 8px; border-radius: 4px;
    letter-spacing: 0.5px; font-family: 'JetBrains Mono', monospace;
  }
  .endpoint-url {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px; color: var(--text-strong); font-weight: 500;
  }

  /* ─── TABLES ─── */
  .table-wrap {
    margin: 10px 0 16px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow: hidden; overflow-x: auto;
  }
  table { width: 100%; border-collapse: collapse; }
  thead tr { background: var(--primary-light); }
  thead th {
    padding: 8px 12px; text-align: left;
    font-weight: 700; font-size: 11.5px;
    text-transform: uppercase; letter-spacing: 0.6px;
    color: var(--primary-dark); border-bottom: 1px solid var(--border);
  }
  tbody tr { border-bottom: 1px solid var(--border); }
  tbody tr:last-child { border-bottom: none; }
  tbody tr:hover { background: var(--surface-2); }
  td { padding: 8px 12px; vertical-align: top; }

  .required, .optional {
    display: inline-block; border-radius: 4px; padding: 1px 6px;
    font-size: 10px; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.3px; margin-left: 4px; vertical-align: middle;
  }
  .required { background: var(--red-bg); color: var(--red); border: 1px solid var(--border); }
  .optional { background: var(--green-bg); color: var(--green); border: 1px solid var(--border); }

  /* ─── CALLOUTS ─── */
  .callout {
    display: flex; gap: 12px; padding: 12px 16px;
    border-radius: var(--radius); margin: 14px 0; line-height: 1.6;
    border: 1px solid var(--border);
  }
  .callout-icon { font-size: 15px; flex-shrink: 0; margin-top: 1px; }
  .callout-note    { background: var(--blue-bg);   border-left: 3px solid var(--primary); }
  .callout-warning { background: var(--yellow-bg); border-left: 3px solid #f59e0b; color: var(--yellow); }
  .callout-tip     { background: var(--green-bg);  border-left: 3px solid #10b981; color: var(--green); }
  .callout-ref     { background: #fff7ed;          border-left: 5px solid var(--accent); color: #7c2d12; font-weight: 500; }
  [data-theme="dark"] .callout-ref { background: #2a180b; color: #fdba74; }
  .callout-ref .ref-label {
    display: block; text-transform: uppercase; font-size: 10px;
    font-weight: 700; letter-spacing: 0.08em; color: var(--accent); margin-bottom: 3px;
  }

  /* ─── FLOW ─── */
  .flow {
    background: var(--surface-2); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 18px 22px; margin: 14px 0 22px;
    display: flex; flex-direction: column; gap: 6px;
  }
  .flow-group { display: flex; flex-direction: column; gap: 4px; }
  .flow-group + .flow-group { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--border); }
  .flow-group-label {
    font-size: 11px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.8px; color: var(--gray-400); margin-bottom: 4px;
  }
  .flow-step { display: flex; align-items: baseline; gap: 10px; line-height: 1.6; }
  .flow-step-dir { font-weight: 700; min-width: 20px; color: var(--primary); }
  .flow-step-dir.ret { color: #9a3412; }
  [data-theme="dark"] .flow-step-dir.ret { color: #fb923c; }
  .flow-actor { font-weight: 600; color: var(--text-strong); }
  .flow-label { color: var(--gray-600); font-family: 'JetBrains Mono', monospace; font-size: 13px; }
  .flow-note { color: var(--gray-600); padding-left: 30px; font-style: italic; margin-top: 4px; }

  /* ─── STATUS BADGES ─── */
  .status-ok {
    display: inline-block; background: var(--green-bg); color: var(--green);
    border: 1px solid var(--border); border-radius: 100px; padding: 2px 10px;
    font-size: 11px; font-weight: 600; font-family: 'JetBrains Mono', monospace;
  }

  /* ─── TWO COLUMNS ─── */
  .two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 14px 0; }

  /* ─── COLLAPSIBLE ENDPOINT CARD ─── */
  details.endpoint-card {
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 0; margin: 14px 0; background: var(--surface);
    overflow: hidden;
  }
  details.endpoint-card > summary {
    list-style: none; cursor: pointer;
    padding: 12px 16px; display: flex; align-items: center; gap: 10px;
    background: var(--surface-2);
    border-bottom: 1px solid transparent;
  }
  details[open].endpoint-card > summary { border-bottom-color: var(--border); }
  details.endpoint-card > summary::after {
    content: '▸'; margin-left: auto; color: var(--gray-400);
    transition: transform .15s;
  }
  details[open].endpoint-card > summary::after { transform: rotate(90deg); }
  details.endpoint-card > summary::-webkit-details-marker { display: none; }
  details.endpoint-card .card-body { padding: 16px; }

  /* ─── BASE URL BANNER ─── */
  .base-url {
    display: flex; align-items: center; gap: 12px;
    background: var(--primary-light); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 12px 16px; margin: 14px 0;
  }
  .base-url-label {
    font-size: 11px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.5px; color: var(--primary); white-space: nowrap;
  }
  .base-url code {
    background: transparent; border: none; padding: 0;
    font-size: 14px; color: var(--text-strong); font-weight: 500;
  }

  /* ─── SEARCH HIDDEN STATE ─── */
  .filtered-out { display: none !important; }

  /* ─── SYNTAX ─── */
  .kw  { color: #c084fc; }
  .str { color: #86efac; }
  .cmt { color: #4a6a8a; font-style: italic; }
  .num { color: #fb923c; }
  .key { color: #7dd3fc; }
  .fn  { color: #fde68a; }

  /* ─── RESPONSIVE ─── */
  @media (max-width: 900px) {
    .app { grid-template-columns: 1fr; }
    .sidebar {
      position: static; height: auto;
      border-right: 0; border-bottom: 1px solid var(--border);
    }
    .sidebar nav { max-height: 260px; overflow-y: auto; }
    .content { padding: 24px 20px 60px; }
    .topbar { padding: 12px 20px; }
    .two-col { grid-template-columns: 1fr; }
  }

  /* ─── PRINT ─── */
  /* Zero @page margin suppresses the browser's header/footer (date, URL, page n of m)
     because there's no margin space to draw them in. Real margins live on .content. */
  @page {
    size: A4;
    margin: 0;
  }
  @media print {
    html, body { background: #fff !important; margin: 0 !important; padding: 0 !important; }
    .sidebar, .topbar, .copy-btn, .lang-tabs, .anchor-link, .btn-pdf,
    .sidebar-downloads, .php-downloads { display: none !important; }
    .app { grid-template-columns: 1fr; }
    .main { padding: 0 !important; }
    .content {
      max-width: none;
      margin: 0;
      padding: 14mm 12mm;
    }
    .lang-panel { display: block !important; }
    .lang-panel:not([data-lang="curl"]) { display: none !important; }
    pre { white-space: pre-wrap; word-break: break-all; font-size: 10.5px; }
    a { color: var(--primary); text-decoration: none; }
    /* Avoid splitting these blocks across pages */
    h1, h2, h3, h4 { page-break-after: avoid; }
    .callout, .code-block, .table-wrap, .flow-group { page-break-inside: avoid; }
  }