:root {
  --bg: #ffffff;
  --ink: #1f1d2b;
  --muted: #5d5872;
  --line: #e4e0f2;
  --soft: #f6f4fd;
  --accent: #5b3fb5;
  --accent-2: #9370db;
  --code: #f3f1fa;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14131b;
    --ink: #ecebf5;
    --muted: #a9a4bf;
    --line: #2d2a3d;
    --soft: #1c1a27;
    --accent: #b9a4ff;
    --accent-2: #9370db;
    --code: #1f1d2b;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); line-height: 1.55; }
a { color: var(--accent); }
code, pre { font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace; }
code { background: var(--code); padding: 0.08em 0.35em; border-radius: 4px; font-size: 0.92em; }
pre { background: var(--code); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; overflow-x: auto; font-size: 13px; }
pre code { background: none; padding: 0; }
.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 24px; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.brand { font-weight: 800; color: var(--accent); text-decoration: none; font-size: 18px; }
nav { display: flex; gap: 18px; flex-wrap: wrap; }
nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
nav a:hover { color: var(--ink); }
main { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
section { padding: 56px 0 8px; }
.hero { padding-top: 64px; }
.kicker { color: var(--accent); font-weight: 600; font-size: 14px; letter-spacing: 0.02em; margin: 0 0 10px; }
h1 { font-size: clamp(32px, 5vw, 54px); line-height: 1.08; letter-spacing: -0.02em; margin: 0 0 16px; max-width: 18ch; }
h2 { font-size: 30px; letter-spacing: -0.01em; margin: 0 0 8px; }
h3 { font-size: 17px; margin: 0 0 6px; }
.lede { font-size: 19px; color: var(--muted); max-width: 60ch; margin: 0 0 24px; }
.section-lede { color: var(--muted); margin: 0 0 22px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.button { display: inline-block; padding: 10px 18px; border-radius: 10px; border: 1px solid var(--line); color: var(--ink); text-decoration: none; font-weight: 600; background: var(--soft); }
.button.primary { background: var(--accent-2); border-color: var(--accent-2); color: #fff; }
.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.tabs button { font: inherit; font-size: 14px; border: 1px solid var(--line); background: var(--soft); color: var(--ink); border-radius: 999px; padding: 6px 14px; cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--accent-2); border-color: var(--accent-2); color: #fff; }
.frame { border: 1px solid var(--line); border-radius: 14px; overflow: hidden; box-shadow: 0 12px 40px rgba(60, 40, 140, 0.12); background: #fff; }
.frame iframe { display: block; width: 100%; height: min(78vh, 760px); border: 0; }
.caption { color: var(--muted); font-size: 14px; }
.how-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 28px; }
.layers { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; counter-reset: layer; }
.layers li { display: flex; justify-content: space-between; gap: 12px; padding: 10px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--soft); }
.layers li span { color: var(--muted); font-size: 14px; text-align: right; }
.rules p { margin: 0 0 12px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.grid article { border: 1px solid var(--line); border-radius: 12px; padding: 18px 18px 12px; background: var(--soft); }
.grid article p { color: var(--muted); margin: 0 0 8px; }
.install-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 18px; }
.note { color: var(--muted); font-size: 14px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; }
footer { max-width: 1180px; margin: 48px auto 0; padding: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
@media (max-width: 760px) {
  .how-grid { grid-template-columns: minmax(0, 1fr); }
  .layers li { flex-direction: column; gap: 2px; }
  .layers li span { text-align: left; }
  .frame iframe { height: 70vh; }
}