* { box-sizing: border-box; }
html { scroll-padding-top: 1rem; }
body { margin: 0; color: #1e395b; background: #edf3fa; font: 16px/1.7 'Segoe UI', Tahoma, Arial, sans-serif; }
a { color: #185f9f; text-underline-offset: 3px; }
a:hover { color: #0d3b66; }
a:focus-visible { outline: 2px solid #185f9f; outline-offset: 4px; }
header { background: linear-gradient(#dbe8f6, #b9d1ec); border-bottom: 1px solid #8ba7c8; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px max(20px, calc((100% - 860px) / 2)); }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 600; font-size: 20px; text-decoration: none; }
main { max-width: 900px; margin: 28px auto; padding: 28px 36px; background: #fff; border: 1px solid #b5c7dd; box-shadow: 0 2px 8px #1e395b10; }
h1 { font-size: clamp(24px, 4vw, 34px); line-height: 1.25; margin: 0 0 20px; }
h2 { font-size: 23px; line-height: 1.35; margin-top: 36px; }
h3 { font-size: 18px; margin-bottom: 5px; }
p { margin: 12px 0; }
.intro { font-size: 18px; }
nav { display: flex; flex-wrap: wrap; gap: 8px 22px; margin: 28px 0; padding: 18px 0; border-block: 1px solid #d5e1ee; }
.launch { display: inline-block; margin: 10px 0; padding: 8px 18px; border: 1px solid #819fbf; border-radius: 3px; background: linear-gradient(#fff, #dce9f8); text-decoration: none; font-weight: 600; }
kbd { font-family: inherit; font-size: .9em; border: 1px solid #c8d4e2; border-radius: 3px; padding: 1px 4px; background: #f4f7fb; white-space: nowrap; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; text-align: left; font-size: 15px; }
caption { text-align: left; font-weight: 600; padding-bottom: 10px; }
th, td { padding: 10px 12px; border: 1px solid #c8d4e2; }
th { background: #edf3fa; }
footer { max-width: 900px; margin: 24px auto; padding: 0 20px 20px; font-size: 14px; }
@media (max-width: 600px) { main { margin: 0; border-inline: 0; padding: 28px 20px; } th, td { padding: 8px; } }