:root {
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --paper: #f7f8fa;
  --card: #ffffff;
  --accent: #635bff;
  --accent-dark: #4b44d6;
  --accent-soft: #eef2ff;
  --ok: #047857;
  --no: #9a3412;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "DM Sans", "Segoe UI", Calibri, Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(900px 420px at 8% -8%, rgba(224, 231, 255, 0.85), transparent 58%),
    radial-gradient(720px 380px at 96% 0%, rgba(237, 233, 254, 0.7), transparent 52%),
    var(--paper);
  line-height: 1.55;
  font-size: 17px;
}
.wrap { max-width: 880px; margin: 0 auto; padding: 32px 20px 80px; }
.toolbar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 16px;
}
.langs {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}
.langs button {
  border: 0;
  background: transparent;
  border-radius: 999px;
  padding: 6px 12px;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--muted);
  cursor: pointer;
}
.langs button[aria-pressed="true"] {
  background: var(--accent);
  color: #fff;
}
header.cover {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 40px 36px;
  margin-bottom: 36px;
  box-shadow:
    0 1px 2px rgba(15, 23, 42, 0.05),
    0 12px 32px rgba(15, 23, 42, 0.06);
}
header.cover p.kicker {
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-dark);
  margin: 0 0 10px;
}
header.cover h1 {
  margin: 0;
  font-size: 34px;
  line-height: 1.15;
  color: var(--ink);
}
header.cover .lead { margin: 16px 0 0; font-size: 18px; color: var(--muted); }
header.cover .meta { margin-top: 22px; font-size: 14px; color: var(--muted); }
nav.toc {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px 24px;
  margin-bottom: 36px;
}
nav.toc h2 { margin: 0 0 10px; font-size: 18px; }
nav.toc ol { margin: 0; padding-left: 22px; }
nav.toc a { color: var(--ink); }
h2 {
  font-size: 26px;
  margin: 48px 0 12px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}
h2:first-of-type { border-top: none; }
h3 { font-size: 20px; margin: 28px 0 8px; }
p { margin: 0 0 12px; }
ol.steps, ul { margin: 0 0 16px; padding-left: 22px; }
ol.steps li, ul li { margin: 0 0 8px; }
.note, .tip, .admin-only {
  border-radius: 14px;
  padding: 14px 16px;
  margin: 16px 0 20px;
}
.note { background: var(--accent-soft); border: 1px solid #c4b5fd; }
.tip { background: #ecfdf5; border: 1px solid #a7f3d0; }
.admin-only { background: #fff7ed; border: 1px solid #fed7aa; }
.note strong, .tip strong, .admin-only strong { display: block; margin-bottom: 4px; }
figure {
  margin: 18px 0 28px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
}
figure img {
  display: block;
  width: 100%;
  height: auto;
}
figcaption {
  padding: 10px 14px 12px;
  font-size: 14px;
  color: var(--muted);
}
table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 20px;
  background: var(--card);
}
th, td {
  text-align: left;
  border: 1px solid var(--line);
  padding: 10px 12px;
  vertical-align: top;
}
th { background: var(--accent-soft); }
.ok { color: var(--ok); font-weight: 700; }
.no { color: var(--no); font-weight: 700; }
footer {
  margin-top: 48px;
  color: var(--muted);
  font-size: 14px;
}
@media print {
  body { background: #fff; font-size: 12pt; }
  .wrap { max-width: none; padding: 0; }
  .toolbar { display: none; }
  header.cover { break-after: page; box-shadow: none; }
  figure { break-inside: avoid; }
  h2, h3 { break-after: avoid; }
  a { color: inherit; text-decoration: none; }
  .print-hint { display: none; }
}