:root {
  color-scheme: light;
  --ink: #142033;
  --muted: #5c6b80;
  --line: #d7dee8;
  --bg: #f4f7fb;
  --card: #fff;
  --brand: #0f6e6b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.5 "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
}
.card, .wide {
  margin: 8vh auto 4rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 2rem;
}
.card { width: min(420px, calc(100% - 2rem)); }
.wide { width: min(980px, calc(100% - 2rem)); margin-top: 2rem; }
.eyebrow { margin: 0 0 .25rem; color: var(--brand); font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; }
h1 { margin: 0 0 .5rem; font-size: 1.6rem; }
h2 { margin: 2rem 0 .75rem; font-size: 1.15rem; }
.lead, .note { color: var(--muted); }
.error { color: #9b2335; background: #fdecef; border-radius: 8px; padding: .6rem .8rem; }
form { display: grid; gap: .8rem; margin-top: 1.2rem; }
label { display: grid; gap: .3rem; font-size: .9rem; }
input {
  font: inherit;
  padding: .65rem .75rem;
  border: 1px solid var(--line);
  border-radius: 10px;
}
button, .tile, a { font: inherit; }
button {
  margin-top: .4rem;
  border: 0;
  border-radius: 10px;
  padding: .75rem 1rem;
  background: var(--brand);
  color: #fff;
  cursor: pointer;
}
.top { display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start; }
.who { display: flex; gap: .8rem; align-items: center; color: var(--muted); }
.links { display: grid; gap: .8rem; }
.tile {
  display: grid;
  gap: .25rem;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.1rem;
}
.tile:hover { border-color: var(--brand); }
.tile span { color: var(--muted); }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; vertical-align: top; border-top: 1px solid var(--line); padding: .55rem .4rem; }
code { font-size: .86em; }
.markdown { overflow-x: auto; }
.markdown pre { background: #101820; color: #e8eef6; padding: 1rem; border-radius: 10px; overflow: auto; }
.markdown table { margin: 1rem 0; }
.markdown a { color: var(--brand); }