:root {
  --ink: #16202a; --soft: #4c5a67; --line: #d9e0e6; --paper: #fbfcfd; --tint: #eef4f1;
  --accent: #0f6b4f; --warn: #fff4e5; --warn-line: #e9c58a;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.6 var(--font); }
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.wrap { max-width: 46rem; margin: 0 auto; padding: 0 1.25rem; }

main.wrap { padding-top: 2.5rem; padding-bottom: 3rem; }
h1 { font-size: clamp(1.8rem, 5vw, 2.4rem); line-height: 1.15; margin: 0 0 1rem; letter-spacing: -.01em; }
h2 { font-size: 1.4rem; line-height: 1.25; margin: 2.4rem 0 .6rem; }
.lead { font-size: 1.2rem; line-height: 1.5; }
.byline { color: var(--soft); font-size: .9rem; margin: 0 0 1.5rem; }
.alert { background: var(--warn); border: 1px solid var(--warn-line); border-radius: 10px; padding: .9rem 1.2rem; margin: 1.5rem 0; }
.alert p { margin: .4rem 0; }
code { font: .88em var(--mono); background: var(--tint); padding: .1em .3em; border-radius: 4px; overflow-wrap: anywhere; }
ul, ol { padding-left: 1.3rem; }
li + li { margin-top: .3rem; }

.table { overflow-x: auto; margin: 1rem 0; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { text-align: left; vertical-align: top; padding: .5rem .6rem; border-bottom: 1px solid var(--line); }
thead th { border-bottom: 2px solid var(--ink); }

details { border-bottom: 1px solid var(--line); padding: .6rem 0; }
summary { cursor: pointer; font-weight: 600; }
details > div { padding-top: .3rem; }
.sources { font-size: .9rem; color: var(--soft); overflow-wrap: anywhere; }

.foot { border-top: 1px solid var(--line); color: var(--soft); font-size: .9rem; }
.foot .wrap { padding-top: 1.2rem; padding-bottom: 2rem; }

@media (max-width: 600px) { body { font-size: 16px; } }