:root {
  --bg: #0f1419;
  --panel: #1a2129;
  --panel-2: #222c37;
  --line: #2c3845;
  --text: #e6edf3;
  --muted: #8b98a5;
  --accent: #2ea3ff;
  --green: #3fb950;
  --red: #f85149;
  --amber: #d29922;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand h1 { font-size: 18px; margin: 0; font-weight: 600; }
.tag {
  font-size: 12px; color: var(--muted);
  border: 1px solid var(--line); padding: 2px 8px; border-radius: 999px;
}
.dot {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--muted); transition: background .3s;
}
.dot.ok { background: var(--green); box-shadow: 0 0 8px var(--green); }
.dot.bad { background: var(--red); box-shadow: 0 0 8px var(--red); }
.status { font-size: 13px; color: var(--muted); }

main { max-width: 1100px; margin: 0 auto; padding: 22px; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
}
.card.big { grid-column: span 2; background: linear-gradient(135deg, #16222e, #1a2b3a); }
.card-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.card-value { font-size: 30px; font-weight: 650; margin-top: 6px; }
.card.big .card-value { font-size: 42px; color: var(--accent); }
.card-value small { font-size: 14px; color: var(--muted); margin-left: 4px; font-weight: 400; }
.card-value.small { font-size: 18px; }

.sources { margin-bottom: 20px; }
.sources-title { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 8px; }
.sources-list { display: flex; flex-wrap: wrap; gap: 10px; }
.source-item {
  display: flex; align-items: center; gap: 10px;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 10px; padding: 10px 14px; font-size: 13px;
}
.source-item .src-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--green); box-shadow: 0 0 6px var(--green); }
.source-item.stale .src-dot { background: var(--red); box-shadow: 0 0 6px var(--red); }
.source-item.stale { opacity: .7; }
.src-name { font-weight: 600; }
.src-age, .src-count { color: var(--muted); font-variant-numeric: tabular-nums; }

.phases { margin-bottom: 20px; }
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
th, td { padding: 11px 16px; text-align: right; font-variant-numeric: tabular-nums; }
th:first-child, td:first-child { text-align: left; font-weight: 600; }
thead th { background: var(--panel-2); color: var(--muted); font-size: 12px; text-transform: uppercase; }
tbody tr { border-top: 1px solid var(--line); }

.chart-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
}
.chart-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}
.field-select label { font-size: 12px; color: var(--muted); margin-right: 6px; }
select {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px;
  padding: 7px 10px; font-size: 14px;
}
.range-buttons { display: flex; gap: 6px; }
.range-buttons button {
  background: var(--panel-2); color: var(--muted);
  border: 1px solid var(--line); border-radius: 8px;
  padding: 7px 13px; cursor: pointer; font-size: 13px;
}
.range-buttons button.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.export {
  margin-left: auto; color: var(--accent); text-decoration: none;
  font-size: 13px; border: 1px solid var(--line); padding: 7px 12px; border-radius: 8px;
}
.export:hover { background: var(--panel-2); }
.chart-wrap { position: relative; height: 360px; }

.optimizer-panel {
  margin-top: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
}
.opt-header { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.opt-header h2 { font-size: 16px; margin: 0; font-weight: 600; }
.opt-hint { font-size: 12px; color: var(--muted); }
.opt-controls { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }
.opt-row {
  display: flex; align-items: center; gap: 12px;
  background: var(--panel-2); border: 1px solid var(--line);
  border-radius: 10px; padding: 10px 14px; flex: 1; min-width: 280px;
}
.opt-state { font-size: 13px; color: var(--muted); flex: 1; }
.opt-btn {
  background: var(--accent); color: #fff; border: none;
  border-radius: 8px; padding: 8px 14px; cursor: pointer; font-size: 13px; font-weight: 600;
}
.opt-btn.running { background: var(--red); }
.cmp-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.cmp-cell { background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.cmp-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.cmp-val { font-size: 26px; font-weight: 650; margin-top: 6px; }
.cmp-val small { font-size: 13px; color: var(--muted); margin-left: 3px; font-weight: 400; }
.cmp-cell.good .cmp-val { color: var(--green); }
.cmp-cell.bad .cmp-val { color: var(--red); }
.cmp-note { font-size: 11px; color: var(--muted); margin-top: 12px; font-style: italic; }

.settings-form { display: flex; flex-direction: column; gap: 12px; margin-bottom: 14px; }
.set-group { display: flex; flex-wrap: wrap; gap: 12px; }
.set-field { display: flex; flex-direction: column; gap: 5px; font-size: 12px; color: var(--muted); flex: 1; min-width: 160px; }
.set-field input, .set-field select {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font-size: 14px;
}
.muted { color: var(--muted); font-size: 13px; }

.meta { margin-top: 18px; font-size: 12px; color: var(--muted); text-align: center; }

@media (max-width: 640px) {
  .card.big { grid-column: span 1; }
  .chart-wrap { height: 280px; }
}