/* Mini project site: one stylesheet, light and dark, system fonts, no scripts. */
:root {
  --bg: #fbfaf7;
  --surface: #f2f0ea;
  --text: #1d1c1a;
  --muted: #55524b;
  --rule: #d9d5cb;
  --accent: #1f5f8b;
  --accent-text: #174a6d;
  --code-bg: #efece4;
  --warn-bg: #fbf0d9;
  --warn-rule: #b9822a;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141517;
    --surface: #1c1e21;
    --text: #e6e4df;
    --muted: #a9a59c;
    --rule: #34373c;
    --accent: #7db7e0;
    --accent-text: #9cc9ea;
    --code-bg: #1f2226;
    --warn-bg: #2a2418;
    --warn-rule: #c99a45;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  overflow-wrap: break-word;
}

.skip { position: absolute; left: -999px; top: 0; }
.skip:focus { left: 1rem; top: 1rem; background: var(--bg); padding: .5rem .75rem; z-index: 10; }

a { color: var(--accent-text); text-underline-offset: .15em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.wrap { max-width: 46rem; margin: 0 auto; padding: 0 1rem; }
.wide { max-width: 64rem; }

header.site { border-bottom: 1px solid var(--rule); }
header.site .wrap {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: .25rem 1.5rem;
  padding-top: .9rem; padding-bottom: .9rem;
}
.brand { font-weight: 700; font-size: 1.15rem; color: var(--text); text-decoration: none; }
nav.primary ul { list-style: none; display: flex; flex-wrap: wrap; gap: .1rem 1rem; margin: 0; padding: 0; }
nav.primary a { color: var(--muted); text-decoration: none; font-size: .975rem; padding: .2rem 0; display: inline-block; }
nav.primary a:hover { color: var(--text); text-decoration: underline; }
nav.primary a[aria-current="page"] { color: var(--text); font-weight: 600; border-bottom: 2px solid var(--accent); }

main { padding: 1.5rem 0 3rem; }
h1 { font-size: 1.9rem; line-height: 1.2; margin: .5rem 0 1rem; letter-spacing: -.01em; }
h2 { font-size: 1.35rem; line-height: 1.3; margin: 2.4rem 0 .6rem; padding-top: .6rem; border-top: 1px solid var(--rule); }
p, ul, ol { margin: 0 0 1rem; }
li { margin: .25rem 0; }
.lede { font-size: 1.2rem; color: var(--text); }
.muted { color: var(--muted); }
small, .small { font-size: .9rem; }

code, pre, kbd { font-family: var(--mono); font-size: .9em; }
:not(pre) > code { background: var(--code-bg); padding: .05em .3em; border-radius: 3px; }
pre {
  background: var(--code-bg); border: 1px solid var(--rule); border-radius: 4px;
  padding: .8rem 1rem; overflow-x: auto; line-height: 1.45; font-size: .85rem; margin: 0 0 1rem;
}

.note {
  background: var(--warn-bg); border-left: 4px solid var(--warn-rule);
  padding: .75rem 1rem; margin: 0 0 1.25rem; border-radius: 0 4px 4px 0;
}
.note > :last-child { margin-bottom: 0; }

table { border-collapse: collapse; width: 100%; margin: 0 0 1.25rem; font-size: .95rem; }
th, td { text-align: left; vertical-align: top; padding: .5rem .6rem; border-bottom: 1px solid var(--rule); }
th { font-weight: 600; background: var(--surface); }
td code { white-space: normal; }

/* Narrow screens: a table marked .stack shows one card per row, each cell labelled. */
@media (max-width: 40rem) {
  table.stack, table.stack tbody, table.stack tr, table.stack td { display: block; width: 100%; }
  table.stack thead { position: absolute; left: -9999px; }
  table.stack tr { border: 1px solid var(--rule); border-radius: 4px; margin: 0 0 .9rem; padding: .3rem .1rem; }
  table.stack td { border: 0; padding: .3rem .7rem; }
  table.stack td::before {
    content: attr(data-label); display: block; font-size: .8rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: .04em; color: var(--muted);
  }
  h1 { font-size: 1.6rem; }
}

footer.site { border-top: 1px solid var(--rule); padding: 1.2rem 0 2rem; font-size: .9rem; color: var(--muted); }
footer.site p { margin: 0 0 .4rem; }