:root {
  --bg: #0b0c0e;
  --card: #14161a;
  --border: #22252b;
  --text: #e6e6e6;
  --muted: #8a8f98;
  --up: #34d399;
  --down: #f87171;
  --warn: #f59e0b;
  --accent: #f0643c;
  color-scheme: dark;
}
body.light {
  --bg: #f4f5f7;
  --card: #ffffff;
  --border: #dde1e7;
  --text: #15171a;
  --muted: #646b75;
  color-scheme: light;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 Inter, system-ui, -apple-system, sans-serif;
}
.mono, .val, .elapsed, .rate, .clocks .mono, .stat span:last-child, table, .json, .tip, .feed {
  font-family: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}
.muted { color: var(--muted); }
.warn { color: var(--warn); }
.err { color: var(--down); }
.up { color: var(--up); }
.down { color: var(--down); }
.pad { padding: 40px; }

/* top bar */
.topbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px;
  padding: 10px 16px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: var(--bg); z-index: 5;
}
.brand { font-weight: 700; }
.tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.tab {
  background: none; border: 0; color: var(--muted); padding: 6px 10px;
  border-radius: 6px; cursor: pointer; font: inherit;
}
.tab.on { color: var(--text); background: var(--card); }
.cost { display: flex; flex-direction: column; }
.cost .val { font-size: 22px; font-weight: 600; }
.rate { color: var(--muted); font-size: 12px; }
.lbl { color: var(--muted); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; }
.clocks { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12px; }
.clocks > div { display: flex; flex-direction: column; }
.auth { margin-left: auto; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.badge {
  background: rgba(240, 100, 60, .15); color: var(--accent);
  padding: 3px 8px; border-radius: 999px; font-size: 12px;
}

/* buttons, inputs */
.btn {
  background: var(--accent); color: #fff; border: 0; border-radius: 6px;
  padding: 7px 12px; cursor: pointer; font: inherit;
}
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
textarea, input, select {
  background: var(--bg); color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; padding: 6px 8px; font: inherit;
}
textarea { width: 100%; }
.json { width: 100%; font-size: 12px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.save { font-size: 12px; color: var(--muted); }
.save.err { color: var(--down); }

/* layout */
main {
  padding: 16px; display: flex; flex-direction: column; gap: 14px;
  max-width: 1400px; margin: 0 auto;
}
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px; min-width: 0;
}
.mhead { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; margin-bottom: 8px; }
.sec { margin: 8px 0 -4px; font-size: 13px; color: var(--muted); font-weight: 500; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; }
.runs { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 14px; }
.run-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.status { font-size: 12px; color: var(--muted); }
.status.live { color: var(--up); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; }
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat .lbl { font-size: 10px; }

/* charts & legends */
.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: middle; }
.legend b { color: var(--text); margin-left: 4px; }
.chart { width: 100%; height: auto; display: block; }
.chart text { fill: var(--muted); font-size: 11px; }
.chart .grid { stroke: var(--border); stroke-width: 1; }
.empty { color: var(--muted); padding: 30px 0; text-align: center; }
.tip {
  position: fixed; pointer-events: none; background: var(--card);
  border: 1px solid var(--border); padding: 6px 8px; border-radius: 6px;
  font-size: 12px; z-index: 20; max-width: 260px;
}
.tip i { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 4px; }
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin: 0 0 10px; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.seg button {
  background: none; border: 0; color: var(--muted); padding: 5px 10px;
  cursor: pointer; font: inherit;
}
.seg button.on { background: var(--border); color: var(--text); }
.smooth { font-size: 12px; color: var(--muted); display: flex; gap: 6px; align-items: center; }

/* notices */
.notice {
  display: grid; grid-template-columns: 150px 1fr auto; gap: 10px;
  padding: 8px 0; border-bottom: 1px solid var(--border);
}
.notice:last-child { border-bottom: 0; }
.ntext { white-space: pre-wrap; }
.x { background: none; border: 0; color: var(--muted); cursor: pointer; font-size: 16px; }
.notice-form { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }

/* admin forms */
.admin { border-color: var(--accent); }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; margin-bottom: 8px; }
.form-grid label { display: flex; flex-direction: column; gap: 4px; color: var(--muted); font-size: 12px; }

/* tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { padding: 6px 8px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
th { color: var(--muted); font-weight: 500; }
td.num { text-align: right; }
.bar { height: 4px; background: var(--border); border-radius: 2px; margin-top: 4px; width: 120px; margin-left: auto; }
.bar i { display: block; height: 100%; background: #3b82f6; border-radius: 2px; }
.feed { max-height: 260px; overflow-y: auto; font-size: 12px; line-height: 1.7; }

/* about */
.prose { line-height: 1.6; }
.prose h2 { font-size: 18px; margin: 0 0 8px; }
.prose p { margin: 0 0 10px; }
.prose ul { margin: 0 0 10px; padding-left: 20px; }

/* banners */
.banner {
  margin: 12px 16px 0; padding: 8px 12px; border-radius: 8px;
  background: rgba(245, 158, 11, .12); color: var(--warn); font-size: 13px;
}
.banner.err { background: rgba(248, 113, 113, .12); color: var(--down); }

footer { text-align: center; color: var(--muted); font-size: 12px; padding: 20px; }

@media (max-width: 640px) {
  .notice { grid-template-columns: 1fr; }
  .cost .val { font-size: 18px; }
  .auth { margin-left: 0; }
}