:root {
  --bg: #f5f5f4; --surface: #fff; --fg: #1f1f1f; --muted: #6b6b6b; --line: #e3e3e0;
  --brand: #f2c811; --brand-hover: #ffd83d; --dark: #1f1f1f;
  --ok: #2e7d32; --ok-bg: #e8f5e9; --err: #c62828; --err-bg: #fdecea; --warn-bg: #fff8e1;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12141a; --surface: #1c1f27; --fg: #e8e8e8; --muted: #9a9ca3; --line: #2e323c;
    --dark: #171a21; --ok: #66bb6a; --ok-bg: #1d3320; --err: #ef7a7a; --err-bg: #3a1f1f; --warn-bg: #3a3218;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--fg); }
body.centered main { min-height: calc(100vh - 56px); display: grid; place-items: center; padding: 16px; }
a { color: inherit; }
.topbar { background: var(--dark); color: #fff; height: 56px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 0 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.brand img { width: 28px; height: 28px; }
.topbar nav { display: flex; align-items: center; gap: 16px; font-size: .9rem; overflow-x: auto; }
.topbar nav a { text-decoration: none; opacity: .85; white-space: nowrap; }
.topbar nav a:hover { opacity: 1; }
.topbar form { margin: 0; }
button.link { background: none; border: 0; color: inherit; font: inherit; cursor: pointer; opacity: .85; padding: 0; white-space: nowrap; }
@media (max-width: 640px) { .brand { font-size: 0; gap: 0; } }

.container { max-width: 1100px; margin: 0 auto; padding: 24px 16px 48px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 24px; margin-bottom: 20px; }
.auth { width: 100%; max-width: 420px; }
h1 { margin: 0 0 8px; font-size: 1.6rem; }
h2 { margin: 0 0 16px; font-size: 1.2rem; }
.kicker { margin: 0; font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.muted { color: var(--muted); }
label { display: block; font-size: .9rem; font-weight: 600; margin-bottom: 14px; }
label small { font-weight: 400; color: var(--muted); }
input, textarea { display: block; width: 100%; margin-top: 6px; padding: 10px 12px; font: inherit; color: var(--fg);
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px; }
input:focus, textarea:focus { outline: 2px solid var(--brand); outline-offset: 1px; }
.btn { display: inline-block; padding: 10px 18px; font: inherit; font-weight: 600; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--line); background: var(--surface); color: var(--fg); }
.btn:hover { border-color: var(--fg); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #1f1f1f; }
.btn.primary:hover { background: var(--brand-hover); }
.auth .btn.primary { width: 100%; margin-top: 4px; }
.btn.small { padding: 4px 10px; font-size: .8rem; font-weight: 500; }
.btn.danger { color: var(--err); }
.btn.danger:hover { border-color: var(--err); }
.alert { padding: 10px 14px; border-radius: 8px; font-size: .9rem; }
.alert.error { background: var(--err-bg); color: var(--err); }
.alert.warn { background: var(--warn-bg); }

.add-form .row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 760px) { .add-form .row { grid-template-columns: 1fr; gap: 0; } }
details { margin: 0 0 16px; }
summary { cursor: pointer; font-weight: 600; margin-bottom: 10px; font-size: .9rem; }
.section-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; }
.section-head h2 { margin: 0; }
.section-head input { max-width: 320px; margin: 0; }

.table-wrap { overflow-x: auto; margin-bottom: 12px; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th { text-align: left; font-size: .75rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
th, td { padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr.inactive td { opacity: .55; }
code { background: var(--bg); padding: 2px 6px; border-radius: 4px; font-size: .9em; }
.bar { width: 120px; height: 8px; border-radius: 99px; background: var(--line); overflow: hidden; margin: 6px 0 2px; }
.bar > div { height: 100%; background: var(--brand); }
.pill { display: inline-block; padding: 2px 10px; border-radius: 99px; font-size: .8rem; font-weight: 600; }
.pill.ok { background: var(--ok-bg); color: var(--ok); }
.pill.off { background: var(--line); color: var(--muted); }
.actions { white-space: nowrap; }
.actions form { display: inline; }