:root {
  --bg: #f4f5f2; --card: #ffffff; --ink: #1c2321; --muted: #5d6763; --line: #dfe3df;
  --accent: #1f6f5c; --accent-ink: #ffffff; --danger: #b3261e; --warn: #8a5a00;
  --ok-bg: #e5f3ec; --err-bg: #fbe9e7; --hl: #fff8e1;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121514; --card: #1b201e; --ink: #e6ebe8; --muted: #9aa5a0; --line: #2c3431;
    --accent: #4fb89a; --accent-ink: #0b1310; --danger: #ff8a80; --warn: #f2c14e;
    --ok-bg: #173126; --err-bg: #3a1a17; --hl: #2d2814;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--accent); }
.top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 12px; padding: 12px 24px; background: var(--card); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--ink);
  text-decoration: none; letter-spacing: .2px; }
.brand svg { width: 22px; height: 22px; fill: var(--accent); }
nav { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
nav a { text-decoration: none; color: var(--ink); }
nav a:hover { color: var(--accent); }
main { max-width: 1040px; margin: 24px auto; padding: 0 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 20px 24px; margin-bottom: 20px; overflow-x: auto; }
.card.narrow { max-width: 460px; margin-left: auto; margin-right: auto; }
.card.highlight { background: var(--hl); }
h1 { font-size: 1.4rem; margin: 0 0 12px; }
h2 { font-size: 1.1rem; margin: 0 0 12px; }
label { display: block; margin-bottom: 12px; font-weight: 600; font-size: .9rem; }
label.check { display: flex; align-items: center; gap: 8px; font-weight: 400; }
input:not([type=checkbox]) { display: block; width: 100%; margin-top: 4px; padding: 8px 10px;
  border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--ink); font: inherit; }
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
button, .button { display: inline-block; padding: 8px 14px; border-radius: 6px; border: 1px solid var(--line);
  background: var(--card); color: var(--ink); font: inherit; cursor: pointer; text-decoration: none; }
button.primary, .button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
button.danger { color: var(--danger); border-color: var(--danger); background: transparent; }
button.link { border: 0; background: none; padding: 0; color: var(--accent); text-decoration: underline; }
button:disabled { opacity: .6; cursor: progress; }
form.inline { display: inline; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 16px; align-items: end; }
.grid .wide { grid-column: 1 / -1; }
.grid button { margin-bottom: 12px; justify-self: start; }
.row { display: flex; gap: 8px; align-items: center; }
.row input { margin-top: 0; }
.row.compact input { width: 90px; padding: 4px 6px; }
.row.compact button { padding: 4px 8px; }
.row.compact input.email { width: 240px; }
.card h2 { margin-top: 20px; }
.card h1 + dl + h2, .card > h2:first-child { margin-top: 0; }
.actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .4px; }
tr.dim { opacity: .5; }
.meta { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 0 0 16px; }
.meta dt { color: var(--muted); }
.meta dd { margin: 0; overflow-wrap: anywhere; }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: .82rem; overflow-wrap: anywhere; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.tag { font-size: .75rem; padding: 1px 6px; border-radius: 10px; background: var(--bg); border: 1px solid var(--line); color: var(--muted); }
.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; }
.flash.ok { background: var(--ok-bg); }
.flash.error, .error { background: var(--err-bg); padding: 10px 14px; border-radius: 8px; }
.warn { color: var(--warn); font-weight: 600; }
blockquote { margin: 0 0 16px; padding: 8px 14px; border-left: 3px solid var(--accent); background: var(--bg); }
.copyrow { display: flex; gap: 8px; }
.copyrow input { margin-top: 0; font-family: ui-monospace, Consolas, monospace; }
ul.plain { list-style: none; padding: 0; margin: 12px 0 0; }
ul.plain li { padding: 6px 0; border-bottom: 1px solid var(--line); }
@media (max-width: 600px) { .top { padding: 12px 16px; } .card { padding: 16px; } }