:root {
  --bg: #f6f7f9; --card: #fff; --fg: #1d2330; --muted: #667085; --line: #dde1e8;
  --accent: #2f6fed; --accent-fg: #fff; --danger: #c5302a; --ok-bg: #e7f6ec; --ok-fg: #17653a; --err-bg: #fdecea; --err-fg: #8f1f1a;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14171d; --card: #1c2029; --fg: #e6e9f0; --muted: #9aa3b5; --line: #2c3240;
    --accent: #6b9bff; --accent-fg: #0d1220; --danger: #ff7b73; --ok-bg: #12301f; --ok-fg: #7fd9a1; --err-bg: #3a1815; --err-fg: #ffaba5; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.5 system-ui, sans-serif; }
header { background: var(--card); border-bottom: 1px solid var(--line); }
header .bar { max-width: 56rem; margin: 0 auto; padding: .6rem 1rem; display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }
header .brand { font-weight: 700; margin-right: auto; }
header nav { display: flex; gap: .25rem; flex-wrap: wrap; }
header a { color: var(--fg); text-decoration: none; padding: .25rem .6rem; border-radius: 6px; }
header a.active, header a:hover { background: var(--bg); }
main { max-width: 56rem; margin: 1.5rem auto; padding: 0 1rem; }
h1 { font-size: 1.4rem; margin: 0 0 1rem; }
h2 { font-size: 1.05rem; margin: 0 0 .75rem; }
section, .card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 1rem 1.25rem; margin-bottom: 1.25rem; }
.narrow { max-width: 24rem; margin: 3rem auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .45rem .5rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-weight: 600; font-size: .85rem; }
tr:last-child td { border-bottom: 0; }
form.stack { display: grid; gap: .75rem; max-width: 26rem; }
label { display: grid; gap: .25rem; font-weight: 600; font-size: .9rem; }
label.inline { display: flex; gap: .5rem; align-items: center; font-weight: 400; }
input[type=text], input[type=password], input[type=email], input[type=number], select {
  font: inherit; padding: .45rem .6rem; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--fg); width: 100%; }
input:focus-visible, select:focus-visible, button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button, .btn { font: inherit; cursor: pointer; padding: .45rem .9rem; border-radius: 6px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-fg); text-decoration: none; display: inline-block; }
button.secondary, .btn.secondary { background: transparent; color: var(--accent); }
button.danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.link { background: none; border: 0; color: var(--accent); padding: 0; }
.muted { color: var(--muted); }
.swatch { vertical-align: -1px; margin-right: .35rem; }
.flash, .error { padding: .6rem .9rem; border-radius: 8px; margin-bottom: 1rem; }
.flash { background: var(--ok-bg); color: var(--ok-fg); }
.error { background: var(--err-bg); color: var(--err-fg); }
code { background: var(--bg); padding: .1rem .35rem; border-radius: 4px; word-break: break-all; }
.row { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }
.tag { font-size: .75rem; border: 1px solid var(--line); border-radius: 999px; padding: 0 .5rem; color: var(--muted); }
@media (max-width: 36rem) { th.hide, td.hide { display: none; } }