:root {
  color-scheme: dark;
  --bg: #0a1020;
  --panel: #151e35;
  --panel-2: #10182c;
  --line: #293958;
  --text: #f5f7fb;
  --muted: #a8b5ca;
  --accent: #45c6f0;
  --accent-2: #1687c2;
  --good: #73db9a;
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--bg); }
body {
  min-height: 100vh;
  margin: 0;
  background: radial-gradient(circle at top right, #1c3560 0, var(--bg) 48%);
  color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
}
button, a { font: inherit; }
.shell { max-width: 1080px; margin: 0 auto; padding: 42px 22px 64px; }
.topbar { display: flex; align-items: center; gap: 16px; margin-bottom: 28px; }
.brand-mark {
  display: grid; place-items: center; width: 54px; height: 54px; flex: none;
  border-radius: 15px; background: linear-gradient(135deg, #1b9bd0, #0c3a5c);
  color: white; font-weight: 900; font-size: 20px; box-shadow: 0 14px 35px #0005;
}
.eyebrow, .product-kicker, .endpoint-label { margin: 0; color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
h1, h2 { margin: 0; line-height: 1.15; }
h1 { font-size: clamp(28px, 5vw, 42px); }
h2 { font-size: clamp(24px, 4vw, 34px); }
.subtitle { margin: 7px 0 0; color: var(--muted); }
.notice { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; padding: 14px 16px; margin-bottom: 22px; border: 1px solid #2d6d85; border-radius: 13px; background: #102b3b99; color: var(--muted); }
.notice strong { color: var(--good); }
.tabs { display: flex; gap: 10px; margin: 22px 0 14px; }
.tab { display: inline-flex; align-items: center; gap: 9px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 11px; background: #1b2948; color: var(--muted); font-weight: 800; cursor: pointer; }
.tab:hover, .tab:focus-visible { border-color: var(--accent); color: var(--text); }
.tab.is-active { border-color: var(--accent); background: var(--accent); color: #06131b; }
.tab-icon { font-size: 18px; }
.panel { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(290px, .7fr); gap: 26px; padding: 28px; border: 1px solid var(--line); border-radius: 20px; background: linear-gradient(135deg, #182542f2, #10182cf2); box-shadow: 0 20px 50px #0004; }
.panel[hidden] { display: none; }
.panel-copy > p:not(.product-kicker) { max-width: 650px; margin: 15px 0 0; color: var(--muted); font-size: 17px; }
.capabilities { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 22px; padding: 0; margin: 24px 0 0; list-style: none; color: var(--muted); }
.capabilities li::before { content: "✓"; margin-right: 8px; color: var(--good); font-weight: 900; }
.panel-action { align-self: stretch; display: flex; flex-direction: column; justify-content: center; padding: 21px; border: 1px solid var(--line); border-radius: 15px; background: #0b1222aa; }
.panel-action code { display: block; overflow-wrap: anywhere; margin: 8px 0 20px; color: var(--text); font: 13px/1.5 Consolas, ui-monospace, monospace; }
.primary-button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 12px 16px; border-radius: 10px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #06131b; font-weight: 900; text-decoration: none; }
.primary-button:hover, .primary-button:focus-visible { filter: brightness(1.12); }
.fallback { margin: 13px 0 0; color: var(--muted); font-size: 12px; }
.fallback a { color: var(--accent); }
.footer { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 18px; color: #7e8da7; font-size: 12px; }
@media (max-width: 720px) {
  .shell { padding: 26px 14px 44px; }
  .panel { grid-template-columns: 1fr; padding: 20px; }
  .capabilities { grid-template-columns: 1fr; }
  .tabs { overflow-x: auto; }
}