:root {
  --bg: #f6f7f9; --panel: #ffffff; --text: #1d232b; --muted: #5e6875; --line: #d9dee5;
  --accent: #1f5fbf; --danger: #b3261e; --ok-bg: #e7f4ea; --ok: #1e6b34; --err-bg: #fbe9e8; --info-bg: #e8f0fb;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14181d; --panel: #1c2128; --text: #e6e9ee; --muted: #9aa4b1; --line: #2e3640;
    --accent: #79a8f2; --danger: #f2877f; --ok-bg: #18301f; --ok: #8fd6a3; --err-bg: #3a1e1c; --info-bg: #1b2a40;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
header { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; padding: 12px 20px; background: var(--panel); border-bottom: 1px solid var(--line); }
header .brand { font-weight: 600; color: var(--text); text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: 6px 16px; align-items: center; }
main { max-width: 1100px; margin: 0 auto; padding: 20px 16px 48px; }
h1 { font-size: 22px; margin: 4px 0 16px; }
h2 { font-size: 17px; margin: 28px 0 10px; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.mono, .secret { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; overflow-wrap: anywhere; }
.secret { font-size: 18px; letter-spacing: 1px; padding: 10px 12px; background: var(--panel); border: 1px dashed var(--line); border-radius: 6px; }
.notice { padding: 10px 12px; border-radius: 6px; margin: 0 0 14px; }
.notice.ok { background: var(--ok-bg); color: var(--ok); }
.notice.error { background: var(--err-bg); color: var(--danger); }
.notice.info { background: var(--info-bg); }
form.stack { display: grid; gap: 12px; max-width: 520px; margin: 0 0 18px; }
form.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; margin: 0 0 16px; }
form.inline { display: inline; }
label { display: grid; gap: 4px; }
label.check { display: flex; gap: 8px; align-items: flex-start; }
label > span { font-size: 13px; color: var(--muted); }
fieldset { border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px; display: grid; gap: 8px; }
legend { padding: 0 4px; color: var(--muted); font-size: 13px; }
input, select { font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 7px 9px; min-width: 0; }
button { font: inherit; cursor: pointer; border: 1px solid var(--accent); background: var(--accent); color: #fff; border-radius: 6px; padding: 7px 14px; justify-self: start; }
button.danger { background: var(--danger); border-color: var(--danger); }
button.link { background: none; border: none; color: var(--accent); padding: 0; text-decoration: underline; }
table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--line); margin: 0 0 12px; }
th, td { text-align: left; padding: 7px 9px; border-bottom: 1px solid var(--line); vertical-align: top; overflow-wrap: anywhere; }
th { font-size: 13px; color: var(--muted); font-weight: 600; }
dl { display: grid; grid-template-columns: minmax(140px, 260px) 1fr; gap: 6px 14px; margin: 0 0 8px; }
dt { color: var(--muted); }
dd { margin: 0; overflow-wrap: anywhere; }
ul.tiles { list-style: none; padding: 0; display: grid; gap: 8px; max-width: 520px; }
ul.tiles li { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px; }
textarea { font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 7px 9px; width: 100%; }
p.row { display: flex; flex-wrap: wrap; gap: 8px 16px; }
ol.messages { list-style: none; padding: 0; display: grid; gap: 10px; margin: 0 0 16px; }
ol.messages li { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px; }
ol.messages li.staff { border-left: 4px solid var(--accent); }
ol.messages li.internal { border-left: 4px solid var(--muted); background: var(--bg); }
ol.messages .meta { font-size: 13px; color: var(--muted); margin-bottom: 4px; }
ol.messages .body { white-space: pre-wrap; overflow-wrap: anywhere; }
section.installation { border-top: 1px solid var(--line); padding-top: 8px; margin-top: 8px; }
h3 { font-size: 15px; margin: 8px 0; }
img.catalog { max-width: 100%; height: auto; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; }
.prewrap { white-space: pre-wrap; overflow-wrap: anywhere; }
@media (max-width: 640px) {
  dl { grid-template-columns: 1fr; }
  dt { margin-top: 6px; }
  table { display: block; overflow-x: auto; }
}