:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #5b6873;
  --line: #d8e0e4;
  --soft: #f6f8f8;
  --paper: #ffffff;
  --teal: #0f766e;
  --blue: #21364a;
  --amber: #a05a00;
  --warn-bg: #fff4dc;
  --warn-line: #e0ad55;
  --radius: 8px;
  --max: 1160px;
}
* { box-sizing: border-box; }
html { font-family: "Segoe UI", Arial, sans-serif; color: var(--ink); background: var(--soft); }
body { margin: 0; line-height: 1.55; }
a { color: var(--teal); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--amber); }
.topbar { background: var(--paper); border-bottom: 1px solid var(--line); }
.topbar-inner { padding: 16px 0; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; color: var(--blue); text-decoration: none; }
.brand img { width: 42px; height: 42px; }
.top-links { display: flex; gap: 14px; flex-wrap: wrap; font-size: 0.94rem; }
.site-shell { max-width: var(--max); margin: 0 auto; padding: 0 24px 54px; display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 32px; align-items: start; }
.content-column { min-width: 0; }
.hero { background: #e9f1ef; border: 1px solid var(--line); border-top: 0; }
.hero-inner { padding: 42px 24px 34px; display: grid; grid-template-columns: minmax(0, 1fr) 190px; gap: 28px; align-items: center; }
.eyebrow { margin: 0 0 8px; color: var(--teal); font-weight: 700; letter-spacing: 0; }
h1 { margin: 0; font-size: clamp(2.1rem, 5vw, 4rem); line-height: 1.04; letter-spacing: 0; color: var(--blue); }
.lead { margin: 16px 0 0; max-width: 760px; font-size: 1.16rem; color: #2f3b46; }
.product-mark { width: min(180px, 42vw); justify-self: end; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 10px 16px; border: 1px solid var(--blue); border-radius: 6px; color: var(--blue); background: var(--paper); font-weight: 700; text-decoration: none; }
.button.primary { background: var(--blue); color: white; }
.button:hover { border-color: var(--amber); color: var(--amber); }
.button.primary:hover { background: #2b4967; color: white; }
.side-nav { position: sticky; top: 0; z-index: 2; align-self: start; min-height: 100vh; border-left: 4px solid var(--teal); padding: 28px 0 18px 14px; background: var(--soft); }
.side-nav a { display: block; padding: 7px 0; color: var(--blue); text-decoration: none; }
.side-nav a[aria-current="page"] { font-weight: 700; color: var(--teal); }
main { min-width: 0; padding-top: 28px; }
section { padding: 24px 0; border-bottom: 1px solid var(--line); }
section:first-child { padding-top: 0; }
h2 { margin: 0 0 12px; font-size: 1.55rem; line-height: 1.2; color: var(--blue); letter-spacing: 0; }
h3 { margin: 20px 0 8px; color: var(--blue); letter-spacing: 0; }
p { margin: 0 0 12px; }
ul, ol { margin-top: 8px; padding-left: 22px; }
li + li { margin-top: 5px; }
.notice { border: 1px solid var(--warn-line); background: var(--warn-bg); border-radius: var(--radius); padding: 14px 16px; margin: 16px 0; }
.tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 16px; }
.tile { border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); padding: 16px; }
.tile strong { color: var(--blue); display: block; margin-bottom: 4px; }
.meta-list { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 8px 16px; }
.meta-list dt { font-weight: 700; color: var(--blue); }
.meta-list dd { margin: 0; overflow-wrap: anywhere; }
.table-wrap { overflow-x: auto; max-width: 100%; margin: 14px 0 4px; }
table { border-collapse: collapse; width: 100%; min-width: 720px; background: var(--paper); border: 1px solid var(--line); }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--blue); background: #edf3f3; cursor: pointer; user-select: none; white-space: nowrap; }
td code, p code, li code { background: #eef2f2; border: 1px solid #d9e1e1; border-radius: 4px; padding: 1px 4px; }
.hash { font-family: Consolas, "Courier New", monospace; font-size: 0.91rem; overflow-wrap: anywhere; }
.footer { border-top: 1px solid var(--line); background: var(--paper); }
.footer-inner { max-width: var(--max); margin: 0 auto; padding: 22px 24px; color: var(--muted); font-size: 0.94rem; }
@media (max-width: 820px) {
  .topbar-inner { align-items: flex-start; flex-direction: column; gap: 10px; }
  .site-shell { grid-template-columns: 1fr; padding-inline: 18px; gap: 0; }
  .hero-inner { grid-template-columns: 1fr; padding-top: 30px; }
  .product-mark { justify-self: start; width: 128px; order: -1; }
  .side-nav { min-height: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; padding-top: 14px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
  .tiles { grid-template-columns: 1fr; }
  .meta-list { grid-template-columns: 1fr; }
}