:root {
  --bg: #f5f6f8; --card: #fff; --text: #1d2330; --muted: #6b7385; --line: #e3e6ec;
  --accent: #3b5bdb; --up: #2f9e44; --down: #e03131; --warn: #f08c00; --none: #adb5bd;
  --radius: 10px;
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.5rem; margin: 0 0 .25rem; }
h2 { font-size: 1.1rem; margin: 0 0 .75rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .85rem; word-break: break-all; }

.nav { background: #1d2330; color: #fff; }
.nav-inner { max-width: 1200px; margin: auto; padding: .7rem 1rem; display: flex; gap: 1.25rem; align-items: center; flex-wrap: wrap; }
.nav a { color: #cfd5e3; }
.nav a.brand { color: #fff; font-weight: 700; font-size: 1.1rem; }
.nav .spacer { flex: 1; }
.nav form { margin: 0; }
.nav button { background: none; border: 0; color: #cfd5e3; cursor: pointer; font: inherit; padding: 0; }

main { max-width: 1200px; margin: auto; padding: 1.5rem 1rem 3rem; }
.page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.25rem; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }
.actions form { margin: 0; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.25rem; margin-bottom: 1.25rem; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); margin-bottom: 1.25rem; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: .9rem 1.1rem; }
.stat .num { font-size: 1.6rem; font-weight: 700; }
.stat .label { color: var(--muted); font-size: .85rem; }

.btn { display: inline-block; padding: .45rem .9rem; border-radius: 7px; border: 1px solid var(--line); background: #fff; color: var(--text); cursor: pointer; font: inherit; font-size: .9rem; }
.btn:hover { text-decoration: none; background: #f0f2f6; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #2f4bc0; }
.btn.danger { color: var(--down); border-color: #f3c4c4; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .55rem .6rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
tr:last-child td { border-bottom: 0; }

.badge { display: inline-block; padding: .1rem .55rem; border-radius: 999px; font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .03em; }
.badge.up { background: #e6f6ea; color: var(--up); }
.badge.down { background: #fdeaea; color: var(--down); }
.badge.unknown, .badge.paused, .badge.past { background: #eef0f3; color: var(--muted); }
.badge.active { background: #fff3e0; color: var(--warn); }
.badge.scheduled { background: #e7ecfd; color: var(--accent); }
.dot { display: inline-block; width: .6rem; height: .6rem; border-radius: 50%; margin-right: .4rem; background: var(--none); }
.dot.up { background: var(--up); } .dot.down { background: var(--down); }

.good { color: var(--up); } .warn { color: var(--warn); } .bad { color: var(--down); } .none { color: var(--none); }
svg.spark polyline { fill: none; stroke: var(--accent); stroke-width: 1.5; }

.messages { list-style: none; padding: 0; margin: 0 0 1rem; }
.messages li { padding: .6rem .9rem; border-radius: 7px; margin-bottom: .5rem; background: #e7ecfd; }
.messages li.success { background: #e6f6ea; } .messages li.error { background: #fdeaea; }

form.stacked p, form.stacked .field { margin: 0 0 1rem; }
form.stacked label { display: block; font-weight: 600; margin-bottom: .25rem; font-size: .9rem; }
form.stacked input[type=text], form.stacked input[type=url], form.stacked input[type=email], form.stacked input[type=number],
form.stacked input[type=password], form.stacked input[type=datetime-local], form.stacked select, form.stacked textarea {
  width: 100%; max-width: 560px; padding: .5rem .6rem; border: 1px solid #cfd4dd; border-radius: 7px; font: inherit; background: #fff;
}
form.stacked ul { list-style: none; padding: 0; margin: 0; }
form.stacked ul label { display: inline; font-weight: normal; }
form.stacked .helptext { display: block; color: var(--muted); font-size: .82rem; }
.errorlist { color: var(--down); list-style: none; padding: 0; margin: .2rem 0; font-size: .88rem; }
.narrow { max-width: 420px; margin: 2rem auto; }
.fieldset { border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; margin-bottom: 1rem; }
.fieldset legend { font-weight: 700; padding: 0 .4rem; }

.range-tabs { display: flex; gap: .4rem; }
.range-tabs a { padding: .2rem .7rem; border-radius: 999px; border: 1px solid var(--line); font-size: .85rem; color: var(--text); }
.range-tabs a.on { background: var(--accent); border-color: var(--accent); color: #fff; }
.chart-box { position: relative; height: 260px; }

.status-hero { text-align: center; padding: 1.5rem; border-radius: var(--radius); color: #fff; font-size: 1.2rem; font-weight: 700; margin-bottom: 1.5rem; }
.status-hero.up { background: var(--up); } .status-hero.down { background: var(--down); } .status-hero.unknown { background: #868e96; }
.bars { display: flex; gap: 2px; margin-top: .5rem; }
.bars span { flex: 1; height: 28px; border-radius: 2px; background: var(--none); }
.bars span.good { background: var(--up); } .bars span.warn { background: var(--warn); } .bars span.bad { background: var(--down); }
.svc { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.svc:last-child { border-bottom: 0; }
.svc-head { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.pager { display: flex; gap: .75rem; align-items: center; margin-top: 1rem; }

@media (max-width: 640px) {
  .hide-sm { display: none; }
  main { padding-top: 1rem; }
}