:root {
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Poppins', var(--font-sans);
  --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --bg: #ffffff;
  --bg-subtle: #f4f4f6;
  --bg-card: #ffffff;
  --bg-code: #f7f7f9;
  --border: #e3e3e6;
  --border-strong: #d1d1d4;
  --text-strong: #18181b;
  --text: #3f3f46;
  --text-muted: #6b6b73;
  --text-faint: #9a9aa2;
  --accent: #0a7f3f;
  --accent-soft: #e7f6ee;
  --btn-bg: #18181b;
  --btn-text: #fafafa;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px rgba(24,24,27,.06);
  --radius: 12px;
  --radius-sm: 8px;
  --maxw: 1120px;
}

.dark {
  --bg: #0b0b0d;
  --bg-subtle: #131316;
  --bg-card: #16161a;
  --bg-code: #131316;
  --border: #262629;
  --border-strong: #34343a;
  --text-strong: #f4f4f5;
  --text: #c7c7cc;
  --text-muted: #8d8d96;
  --text-faint: #6a6a72;
  --accent: #34d27f;
  --accent-soft: rgba(52,210,127,.10);
  --btn-bg: #fafafa;
  --btn-text: #18181b;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 12px 30px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
::selection { background: rgba(10,127,63,.18); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--text-strong); line-height: 1.18; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }
code, pre { font-family: var(--font-mono); }

.seo-container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.seo-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.seo-header__inner { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 16px; }
.seo-brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 600; color: var(--text-strong); font-size: 16px; }
.seo-brand__mark { width: 26px; height: 26px; border-radius: 7px; background: var(--btn-bg); color: var(--btn-text); display: grid; place-items: center; font-weight: 700; font-size: 14px; }
.seo-nav { display: flex; align-items: center; gap: 6px; }
.seo-nav a { color: var(--text-muted); font-size: 14px; padding: 8px 12px; border-radius: var(--radius-sm); transition: color .15s, background .15s; }
.seo-nav a:hover { color: var(--text-strong); background: var(--bg-subtle); }
.seo-header__cta { display: flex; align-items: center; gap: 8px; }
@media (max-width: 820px) { .seo-nav { display: none; } }

/* ---------- Buttons ---------- */
.seo-btn { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 14px; padding: 10px 18px; border-radius: var(--radius-sm); border: 1px solid transparent; cursor: pointer; transition: transform .12s, opacity .15s, background .15s, border-color .15s; white-space: nowrap; }
.seo-btn:hover { transform: translateY(-1px); }
.seo-btn--primary { background: var(--btn-bg); color: var(--btn-text); }
.seo-btn--primary:hover { opacity: .9; }
.seo-btn--ghost { background: transparent; color: var(--text-strong); border-color: var(--border-strong); }
.seo-btn--ghost:hover { background: var(--bg-subtle); }
.seo-btn--sm { padding: 7px 14px; font-size: 13px; }

/* ---------- Breadcrumbs ---------- */
.seo-breadcrumbs { padding: 18px 0 0; font-size: 13px; color: var(--text-muted); }
.seo-breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; }
.seo-breadcrumbs li::after { content: '/'; margin-left: 6px; color: var(--text-faint); }
.seo-breadcrumbs li:last-child::after { content: ''; }
.seo-breadcrumbs a:hover { color: var(--text-strong); }
.seo-breadcrumbs li[aria-current] { color: var(--text); }

/* ---------- Hero ---------- */
.seo-hero { padding: 40px 0 28px; }
.seo-eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--accent); background: var(--accent-soft); padding: 5px 11px; border-radius: 999px; }
.seo-hero h1 { font-size: clamp(30px, 5vw, 46px); margin: 18px 0 0; font-weight: 700; }
.seo-hero__lede { font-size: clamp(16px, 2.2vw, 19px); color: var(--text-muted); margin-top: 16px; max-width: 720px; }
.seo-hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.seo-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.seo-badge { font-size: 12px; color: var(--text-muted); background: var(--bg-subtle); border: 1px solid var(--border); padding: 5px 11px; border-radius: 999px; }
.seo-badge strong { color: var(--text-strong); font-weight: 600; }

/* ---------- Sections ---------- */
.seo-section { padding: 34px 0; border-top: 1px solid var(--border); }
.seo-section__head { max-width: 760px; margin-bottom: 22px; }
.seo-section h2 { font-size: clamp(22px, 3vw, 30px); font-weight: 650; }
.seo-section__intro { color: var(--text-muted); margin-top: 10px; font-size: 16px; }
.seo-section h3 { font-size: 18px; margin-bottom: 8px; }
.seo-prose p { margin-bottom: 14px; color: var(--text); }
.seo-prose p:last-child { margin-bottom: 0; }
.seo-prose strong { color: var(--text-strong); }
.seo-prose code { background: var(--bg-code); border: 1px solid var(--border); border-radius: 5px; padding: 1px 6px; font-size: .88em; color: var(--text-strong); }

/* ---------- Cards / grids ---------- */
.seo-grid { display: grid; gap: 16px; }
.seo-grid--2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.seo-grid--3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.seo-grid--4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
@media (max-width: 900px) { .seo-grid--3, .seo-grid--4 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 560px) { .seo-grid--2, .seo-grid--3, .seo-grid--4 { grid-template-columns: 1fr; } }
.seo-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.seo-card__icon { width: 34px; height: 34px; border-radius: 9px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; font-weight: 700; font-family: var(--font-mono); margin-bottom: 12px; }
.seo-card h3 { font-size: 16px; margin-bottom: 6px; }
.seo-card p { font-size: 14px; color: var(--text-muted); }

/* ---------- Tables ---------- */
.seo-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
.seo-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.seo-table th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--text-faint); font-weight: 600; padding: 12px 16px; background: var(--bg-subtle); border-bottom: 1px solid var(--border); }
.seo-table td { padding: 11px 16px; border-top: 1px solid var(--border); color: var(--text-muted); vertical-align: top; }
.seo-table td:first-child { color: var(--text-strong); font-weight: 500; }
.seo-table tbody tr:first-child td { border-top: none; }
.seo-table code { font-family: var(--font-mono); font-size: 12.5px; color: var(--text-strong); }

/* ---------- Code blocks + JS-free tabs ---------- */
.seo-codetabs { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--bg-code); }
.seo-codetabs__radio { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.seo-codetabs__labels { display: flex; flex-wrap: wrap; gap: 2px; padding: 8px 8px 0; border-bottom: 1px solid var(--border); background: var(--bg-subtle); }
.seo-codetabs__labels label { font-size: 12.5px; font-weight: 600; color: var(--text-muted); padding: 7px 13px; border-radius: 7px 7px 0 0; cursor: pointer; user-select: none; }
.seo-codetabs__labels label:hover { color: var(--text-strong); }
.seo-codetabs__panel { display: none; margin: 0; }
.seo-codetabs__panel pre, pre.seo-pre { margin: 0; }
.seo-codetabs__panel code, pre.seo-pre code { display: block; padding: 18px 18px; overflow-x: auto; font-size: 13px; line-height: 1.7; color: var(--text-strong); white-space: pre; }
pre.seo-pre { border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-code); overflow: hidden; }
.seo-codetabs__radio:nth-of-type(1):checked ~ .seo-codetabs__panels .seo-codetabs__panel:nth-of-type(1),
.seo-codetabs__radio:nth-of-type(2):checked ~ .seo-codetabs__panels .seo-codetabs__panel:nth-of-type(2),
.seo-codetabs__radio:nth-of-type(3):checked ~ .seo-codetabs__panels .seo-codetabs__panel:nth-of-type(3),
.seo-codetabs__radio:nth-of-type(4):checked ~ .seo-codetabs__panels .seo-codetabs__panel:nth-of-type(4),
.seo-codetabs__radio:nth-of-type(5):checked ~ .seo-codetabs__panels .seo-codetabs__panel:nth-of-type(5),
.seo-codetabs__radio:nth-of-type(6):checked ~ .seo-codetabs__panels .seo-codetabs__panel:nth-of-type(6) { display: block; }
.seo-codetabs__radio:nth-of-type(1):checked ~ .seo-codetabs__labels label:nth-of-type(1),
.seo-codetabs__radio:nth-of-type(2):checked ~ .seo-codetabs__labels label:nth-of-type(2),
.seo-codetabs__radio:nth-of-type(3):checked ~ .seo-codetabs__labels label:nth-of-type(3),
.seo-codetabs__radio:nth-of-type(4):checked ~ .seo-codetabs__labels label:nth-of-type(4),
.seo-codetabs__radio:nth-of-type(5):checked ~ .seo-codetabs__labels label:nth-of-type(5),
.seo-codetabs__radio:nth-of-type(6):checked ~ .seo-codetabs__labels label:nth-of-type(6) { color: var(--text-strong); background: var(--bg-code); }

/* ---------- Endpoint list ---------- */
.seo-endpoint-list { display: flex; flex-direction: column; gap: 10px; }
.seo-endpoint { display: grid; grid-template-columns: 54px minmax(0,1fr); gap: 8px 14px; align-items: start; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; transition: border-color .15s, transform .12s; }
.seo-endpoint:hover { border-color: var(--border-strong); transform: translateY(-1px); }
.seo-endpoint__method { font-family: var(--font-mono); font-size: 11px; font-weight: 700; padding: 3px 0; text-align: center; border-radius: 5px; border: 1px solid; }
.seo-method--get { color: #0a7f3f; border-color: rgba(10,127,63,.4); background: rgba(10,127,63,.08); }
.seo-method--post { color: #1d6fd6; border-color: rgba(29,111,214,.4); background: rgba(29,111,214,.08); }
.seo-endpoint__path { grid-column: 2; font-size: 13px; color: var(--text-strong); }
.seo-endpoint__meta { grid-column: 2; display: flex; flex-direction: column; gap: 2px; }
.seo-endpoint__name { font-weight: 600; font-size: 13.5px; color: var(--text-strong); font-family: var(--font-sans); }
.seo-endpoint__desc { font-size: 13px; color: var(--text-muted); }

/* ---------- Related links ---------- */
.seo-related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.seo-related-card { position: relative; display: flex; flex-direction: column; gap: 4px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px 18px; transition: border-color .15s, transform .12s; }
.seo-related-card:hover { border-color: var(--border-strong); transform: translateY(-1px); }
.seo-related-card__label { font-weight: 600; color: var(--text-strong); font-size: 14.5px; }
.seo-related-card__desc { font-size: 13px; color: var(--text-muted); }
.seo-related-card__arrow { position: absolute; top: 14px; right: 16px; color: var(--text-faint); transition: transform .15s; }
.seo-related-card:hover .seo-related-card__arrow { transform: translateX(3px); color: var(--accent); }
.seo-linklist { columns: 2; gap: 28px; list-style: none; padding: 0; margin: 0; }
.seo-linklist li { margin-bottom: 8px; break-inside: avoid; }
.seo-linklist a { color: var(--text); font-size: 14px; }
.seo-linklist a:hover { color: var(--accent); }
@media (max-width: 560px) { .seo-linklist { columns: 1; } }

/* ---------- FAQ ---------- */
.seo-faq { display: flex; flex-direction: column; gap: 10px; }
.seo-faq details { border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg-card); padding: 0 18px; }
.seo-faq summary { cursor: pointer; padding: 16px 0; font-weight: 600; color: var(--text-strong); list-style: none; display: flex; justify-content: space-between; gap: 12px; align-items: center; font-size: 15px; }
.seo-faq summary::-webkit-details-marker { display: none; }
.seo-faq summary::after { content: '+'; color: var(--text-faint); font-size: 20px; font-weight: 400; }
.seo-faq details[open] summary::after { content: '\2212'; }
.seo-faq details[open] summary { border-bottom: 1px solid var(--border); }
.seo-faq__answer { padding: 14px 0 18px; color: var(--text-muted); font-size: 14.5px; }

/* ---------- CTA band ---------- */
.seo-cta { margin: 12px 0 0; padding: 38px; border-radius: var(--radius); background: var(--bg-subtle); border: 1px solid var(--border); text-align: center; }
.seo-cta h2 { font-size: clamp(22px, 3vw, 28px); }
.seo-cta p { color: var(--text-muted); margin: 10px auto 22px; max-width: 540px; }
.seo-cta__actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; }

/* ---------- Footer ---------- */
.seo-footer { border-top: 1px solid var(--border); margin-top: 40px; padding: 44px 0 36px; background: var(--bg-subtle); }
.seo-footer__cols { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 28px; }
@media (max-width: 760px) { .seo-footer__cols { grid-template-columns: 1fr 1fr; } }
.seo-footer h4 { font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--text-faint); font-family: var(--font-sans); margin-bottom: 12px; }
.seo-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 9px; }
.seo-footer a { color: var(--text-muted); font-size: 14px; }
.seo-footer a:hover { color: var(--text-strong); }
.seo-footer__about { color: var(--text-muted); font-size: 14px; max-width: 320px; margin: 12px 0 0; }
.seo-footer__bar { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-top: 34px; padding-top: 20px; border-top: 1px solid var(--border); color: var(--text-faint); font-size: 13px; }

.seo-main { display: block; }
.seo-section:first-of-type { border-top: none; }