:root { --blue: #2f6fde; --blue-dark: #1f4fa8; --ink: #1f2328; --muted: #59636e; --line: #d8dee6; --soft: #f4f7fd; --dark: #14181d; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", sans-serif; color: var(--ink); background: #fff; }
a { color: #1f5fcc; }
code { background: #eef1f5; padding: 1px 6px; border-radius: 4px; font-size: .9em; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
header.top { background: var(--dark); color: #fff; }
header.top .wrap { display: flex; align-items: center; gap: 24px; min-height: 60px; }
header.top a { color: #fff; text-decoration: none; }
header.top .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; margin-right: auto; }
header.top .brand img { width: 30px; height: 30px; border-radius: 6px; }
header.top nav { display: flex; gap: 22px; font-size: 15px; }
header.top nav a:hover { text-decoration: underline; }
.hero { background: linear-gradient(160deg, #14181d 0%, #1c2b4a 55%, #2f6fde 130%); color: #fff; padding: 64px 0 72px; }
.hero .wrap { display: grid; gap: 40px; grid-template-columns: 1fr; align-items: center; }
.hero img.logo { width: 120px; height: 120px; border-radius: 22px; box-shadow: 0 8px 30px rgba(0,0,0,.35); }
.hero h1 { font-size: 44px; line-height: 1.1; margin: 0 0 14px; }
.hero p.lead { font-size: 19px; color: #d7e0f0; margin: 0 0 28px; max-width: 640px; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 14px 20px; align-items: center; }
.btn { display: inline-flex; flex-direction: column; background: #fff; color: var(--blue-dark); text-decoration: none; padding: 14px 28px; border-radius: 12px; font-weight: 700; font-size: 20px; line-height: 1.2; box-shadow: 0 6px 20px rgba(0,0,0,.3); }
.btn:hover { background: #eef4ff; }
.btn small { font-weight: 500; font-size: 14px; color: var(--muted); margin-top: 2px; }
.hero .meta { color: #c3d0e8; font-size: 15px; }
.hero .meta strong { color: #fff; }
section { padding: 52px 0 8px; }
section h2 { font-size: 28px; margin: 0 0 18px; }
.cards { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }
.card { border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; background: #fff; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 16px; }
.notes { background: var(--soft); border-left: 4px solid var(--blue); border-radius: 0 12px 12px 0; padding: 6px 22px; }
.notes ul { padding-left: 20px; }
ol.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); counter-reset: step; }
ol.steps li { counter-increment: step; border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px 18px 62px; position: relative; }
ol.steps li::before { content: counter(step); position: absolute; left: 18px; top: 16px; width: 32px; height: 32px; border-radius: 50%; background: var(--blue); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; }
ol.steps h3 { margin: 0 0 4px; font-size: 18px; }
ol.steps p { margin: 0; color: var(--muted); font-size: 16px; }
pre { background: #0f1620; color: #e6edf6; border-radius: 12px; padding: 16px 20px; overflow-x: auto; font-size: 15px; line-height: 1.55; }
pre code { background: none; padding: 0; color: inherit; }
.small { color: var(--muted); font-size: 15px; }
.sum { word-break: break-all; }
table.versions { width: 100%; border-collapse: collapse; font-size: 16px; }
table.versions th, table.versions td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.versions th { color: var(--muted); font-weight: 600; font-size: 14px; }
table.versions details summary { cursor: pointer; color: #1f5fcc; }
table.versions details div { margin-top: 6px; color: var(--muted); }
footer.foot { margin-top: 60px; background: var(--dark); color: #b8c2d0; padding: 28px 0; font-size: 15px; }
footer.foot a { color: #fff; }
@media (min-width: 800px) { .hero .wrap { grid-template-columns: 140px 1fr; } .hero h1 { font-size: 52px; } }
@media (max-width: 560px) { header.top nav { gap: 14px; } .hero { padding: 40px 0 48px; } .hero h1 { font-size: 36px; } }