:root { --bg: #0b0b0c; --ink: #ededef; --mute: #9b9ba3; --line: rgba(255, 255, 255, 0.09); --accent: #2f80ff; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.65 "Geist", system-ui, -apple-system, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.lg-top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px max(16px, calc((100% - 1080px) / 2)); background: var(--bg); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 9px; text-decoration: none; min-width: 0; }
.brand .mark { height: 26px; width: auto; }
.brand .word { height: 17px; width: auto; }
.lg-nav { display: flex; gap: 4px; }
.lg-nav a { padding: 7px 12px; border-radius: 99px; text-decoration: none; font-weight: 500; font-size: 14.5px; color: var(--mute); }
.lg-nav a:hover { color: var(--ink); background: rgba(255, 255, 255, 0.05); }
.lg-nav a[aria-current="page"] { color: var(--ink); background: rgba(255, 255, 255, 0.08); }
.lg { width: min(1080px, calc(100% - 32px)); margin: 0 auto; padding: 56px 0 80px; }
.lg-head { max-width: 720px; margin-bottom: 48px; }
.lg-kicker { margin: 0 0 10px; font: 500 12px "Geist Mono", ui-monospace, monospace; letter-spacing: 0.12em; text-transform: uppercase; color: var(--mute); }
.lg-head h1 { margin: 0; font-size: clamp(36px, 6vw, 56px); line-height: 1.05; letter-spacing: -0.03em; font-weight: 700; }
.lg-sub { margin: 14px 0 0; font-size: 18px; color: var(--mute); }
.lg-date { margin: 18px 0 0; font: 13px "Geist Mono", ui-monospace, monospace; color: var(--mute); }
.lg-grid { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 56px; align-items: start; }
.lg-toc { position: sticky; top: 90px; font-size: 14px; }
.lg-toc p { margin: 0 0 10px; font: 500 11.5px "Geist Mono", ui-monospace, monospace; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mute); }
.lg-toc ol { margin: 0; padding: 0; list-style: none; display: grid; gap: 2px; border-left: 1px solid var(--line); }
.lg-toc a { display: block; padding: 4px 0 4px 14px; margin-left: -1px; border-left: 1px solid transparent; color: var(--mute); text-decoration: none; }
.lg-toc a:hover { color: var(--ink); border-left-color: var(--ink); }
.lg-body { max-width: 720px; }
.lg-body section { padding: 0 0 32px; margin: 0 0 32px; border-bottom: 1px solid var(--line); }
.lg-body section:last-child { border-bottom: 0; }
.lg-body h2 { margin: 0 0 12px; font-size: 21px; letter-spacing: -0.01em; font-weight: 700; }
.lg-body p { margin: 0 0 12px; color: #c9c9cf; text-wrap: pretty; }
.lg-body p:last-child { margin-bottom: 0; }
.lg-body b { color: var(--ink); font-weight: 600; }
.lg-body a { color: #8fb8ff; text-underline-offset: 3px; }
.lg-body ul { margin: 0 0 12px; padding-left: 20px; color: #c9c9cf; display: grid; gap: 8px; }
.lg-body code { font: 13.5px "Geist Mono", ui-monospace, monospace; background: rgba(255, 255, 255, 0.07); padding: 1px 6px; border-radius: 5px; color: var(--ink); }
.lg-foot { display: flex; flex-wrap: wrap; gap: 6px 22px; justify-content: center; padding: 28px 16px 40px; border-top: 1px solid var(--line); font-size: 14px; }
.lg-foot a { color: var(--mute); text-decoration: none; }
.lg-foot a:hover { color: var(--ink); }
@media (max-width: 820px) {
  .lg-grid { grid-template-columns: 1fr; gap: 28px; }
  .lg-toc { position: static; }
  .lg { padding-top: 36px; }
}
@media (max-width: 520px) {
  .brand .word { display: none; }
  .lg-nav a { padding: 6px 10px; font-size: 14px; }
}