:root {
  --bg: #f4f5f7; --card: #fff; --text: #1d2330; --muted: #6b7280; --border: #dfe3ea;
  --primary: #1f5eff; --primary-ink: #fff; --danger: #c62828;
  --ok-bg: #e5f6ea; --ok: #1b6e35; --warn-bg: #fff4d6; --warn: #8a5a00; --bad-bg: #fde7e7; --bad: #a11d1d;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151b; --card: #1b2029; --text: #e6e9ef; --muted: #9aa3b2; --border: #2c3340;
    --primary: #4c7dff; --ok-bg: #163222; --ok: #7fd49a; --warn-bg: #3a2e10; --warn: #f3c969;
    --bad-bg: #3d1717; --bad: #ff9c9c;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--primary); }
code { font-family: var(--mono); font-size: .9em; }

.topbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
  padding: 12px 20px; background: var(--card); border-bottom: 1px solid var(--border); }
.brand { font-weight: 700; text-decoration: none; color: var(--text); }
.topbar nav { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }

main { max-width: 1100px; margin: 24px auto; padding: 0 16px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 20px 24px; }
.card.narrow { max-width: 380px; margin: 60px auto; }
h1 { font-size: 1.35rem; margin: 0 0 16px; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }

label { display: block; font-weight: 600; margin: 0 0 14px; }
input[type=text], input[type=password], textarea {
  display: block; width: 100%; margin-top: 6px; padding: 9px 11px; font: inherit; font-weight: 400;
  color: var(--text); background: var(--bg); border: 1px solid var(--border); border-radius: 7px; }
textarea { font-family: var(--mono); font-size: 13.5px; line-height: 1.45; resize: vertical; tab-size: 4; }
input:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: 1px; }

.btn { display: inline-block; padding: 8px 14px; border-radius: 7px; border: 1px solid var(--border);
  background: var(--card); color: var(--text); font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.btn:hover { border-color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
.btn.danger { color: var(--danger); }
.btn.danger:hover { border-color: var(--danger); }
.btn.ghost { border-color: transparent; }
.btn.small { padding: 4px 10px; font-size: .85rem; }
button.link { background: none; border: 0; padding: 0; color: var(--primary); font: inherit; cursor: pointer; }
form.inline { display: inline; margin: 0; }
.buttons { display: flex; gap: 10px; flex-wrap: wrap; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); vertical-align: middle; white-space: nowrap; }
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
td.actions, th.actions { text-align: right; }
td.actions > * { margin-left: 4px; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: .75rem; font-weight: 700; letter-spacing: .03em; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }

.flash { padding: 10px 14px; border-radius: 7px; margin: 0 0 14px; }
.flash-success { background: var(--ok-bg); color: var(--ok); }
.flash-error { background: var(--bad-bg); color: var(--bad); }

[hidden] { display: none !important; }
.offscreen { position: fixed; top: 0; left: -9999px; opacity: 0; }
.btn:disabled { opacity: .85; cursor: default; }

.foot { text-align: center; color: var(--muted); font-size: .8rem; padding: 24px; }