:root {
  --blue: #2563EB;
  --blue-dark: #1e3a8a;
  --blue-soft: #eff4ff;
  --orange: #FF8A3D;
  --orange-dark: #ea580c;
  --ink: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --bg: #ffffff;
  --card: #f8fafc;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e2e8f0;
    --muted: #94a3b8;
    --line: #1e293b;
    --bg: #0b1220;
    --card: #111a2e;
    --blue-soft: #13203d;
    --blue-dark: #93b4ff;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
a { color: var(--blue); }
@media (prefers-color-scheme: dark) { a { color: #7aa2ff; } }

header.site {
  border-bottom: 1px solid var(--line);
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; padding-bottom: 14px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 800; font-size: 1.15rem; }
.brand img { width: 36px; height: 36px; border-radius: 9px; }
.brand .sem { color: var(--blue-dark); }
.brand .pal { color: var(--orange-dark); }
nav a { margin-left: 18px; text-decoration: none; color: var(--muted); font-weight: 600; font-size: .95rem; }
nav a:hover, nav a[aria-current] { color: var(--blue); }

.wrap { max-width: 760px; margin: 0 auto; padding-left: 16px; padding-right: 16px; }

.hero { padding: 56px 0 40px; text-align: center; }
.hero img { width: 112px; height: 112px; border-radius: 26px; box-shadow: 0 10px 30px rgba(37,99,235,.25); }
.hero h1 { font-size: clamp(2rem, 6vw, 2.8rem); line-height: 1.15; margin: 22px 0 12px; letter-spacing: -0.02em; }
.hero p.lead { font-size: 1.15rem; color: var(--muted); margin: 0 auto 26px; max-width: 34em; }

.btn {
  display: inline-block; background: var(--blue); color: #fff !important; text-decoration: none;
  font-weight: 700; padding: 13px 22px; border-radius: 12px;
}
.btn.alt { background: transparent; color: var(--blue) !important; border: 2px solid var(--blue); }
.btn + .btn { margin-left: 8px; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; margin: 20px 0 48px; }
.feature { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
.feature h3 { margin: 0 0 6px; font-size: 1.05rem; }
.feature p { margin: 0; color: var(--muted); font-size: .95rem; }
.feature .dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: var(--orange); margin-right: 8px; }

main.doc { padding-top: 36px; padding-bottom: 56px; }
main.doc h1 { font-size: clamp(1.7rem, 5vw, 2.2rem); line-height: 1.2; margin: 0 0 4px; letter-spacing: -0.01em; }
main.doc .meta { color: var(--muted); margin: 0 0 28px; }
main.doc h2 { font-size: 1.3rem; margin: 36px 0 10px; padding-top: 8px; border-top: 1px solid var(--line); }
main.doc h3 { font-size: 1.05rem; margin: 22px 0 6px; }

.table-scroll { overflow-x: auto; margin: 12px 0 18px; border: 1px solid var(--line); border-radius: 12px; }
table { border-collapse: collapse; width: 100%; font-size: .93rem; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { background: var(--card); font-weight: 700; }
tr:last-child td { border-bottom: 0; }

.note { background: var(--blue-soft); border-left: 4px solid var(--blue); padding: 12px 16px; border-radius: 8px; margin: 16px 0; }
.warn { background: #fff4ec; border-left: 4px solid var(--orange); padding: 12px 16px; border-radius: 8px; margin: 16px 0; color: #3b2414; }
@media (prefers-color-scheme: dark) { .warn { background: #2a1a0e; color: #fbd9c0; } }

ol.steps { counter-reset: s; list-style: none; padding: 0; }
ol.steps > li { counter-increment: s; position: relative; padding: 4px 0 18px 48px; }
ol.steps > li::before {
  content: counter(s); position: absolute; left: 0; top: 2px; width: 32px; height: 32px; border-radius: 50%;
  background: var(--blue); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center;
}
ol.steps > li strong:first-child { display: block; margin-bottom: 2px; }

footer.site { border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
footer.site .wrap { padding-top: 22px; padding-bottom: 30px; display: flex; flex-wrap: wrap; gap: 8px 18px; justify-content: space-between; }
footer.site a { color: var(--muted); }

@media (max-width: 520px) {
  nav a { margin-left: 12px; font-size: .9rem; }
  .brand span.word { display: none; }
  .btn { display: block; margin: 0 0 10px !important; }
}