:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --ink: #1c2733;
  --muted: #5d6b7a;
  --line: #e2e6eb;
  --accent: #1f6feb;
  --accent-soft: #e8f0fe;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.45;
}

header, .cards, .controls, .chart-wrap, .table-wrap, .detail-wrap, footer {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

header { padding-top: 32px; }
h1 { margin: 0 0 6px; font-size: 28px; }
.sub { margin: 0 0 4px; color: var(--muted); max-width: 70ch; }
.meta { margin: 4px 0 0; font-size: 13px; color: var(--muted); }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-top: 22px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
}
.card .num { font-size: 26px; font-weight: 700; }
.card .lbl { font-size: 13px; color: var(--muted); margin-top: 2px; }

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  align-items: flex-start;
  margin-top: 26px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
}
.control { display: flex; flex-direction: column; gap: 8px; }
.control.grow { flex: 1; min-width: 280px; }
.control-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--muted);
  font-weight: 600;
}

.btn-group { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.btn-group button {
  border: none;
  background: var(--card);
  padding: 7px 14px;
  cursor: pointer;
  font-size: 14px;
  color: var(--ink);
  border-right: 1px solid var(--line);
}
.btn-group button:last-child { border-right: none; }
.btn-group button.active { background: var(--accent); color: #fff; }

.cats { display: flex; flex-wrap: wrap; gap: 6px 14px; }
.cats label { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; cursor: pointer; }
.cats .swatch { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }
.cat-presets { display: flex; gap: 8px; margin-top: 4px; }
.cat-presets button {
  background: var(--accent-soft);
  color: var(--accent);
  border: none;
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 13px;
  cursor: pointer;
}

.chart-wrap {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px;
  margin-top: 20px;
  height: 420px;
}

.chart-note {
  max-width: 1080px;
  margin: 8px auto 12px;
  padding: 0 20px;
  text-align: left;
  font-size: 13px;
  color: var(--muted);
}

.table-wrap, .detail-wrap { margin-top: 28px; }
h2 { font-size: 18px; margin: 0 0 4px; }
.hint, .detail-wrap .hint { font-size: 13px; color: var(--muted); margin: 0 0 12px; }

table { width: 100%; border-collapse: collapse; background: var(--card); font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
#monthly tbody tr { cursor: pointer; }
#monthly tbody tr:hover { background: var(--accent-soft); }
#monthly tbody tr.selected { background: var(--accent-soft); }

.detail-wrap { padding-bottom: 10px; }
.hidden { display: none; }

#detail td.num, #detail th.num { text-align: left; }
#detail td.num a { color: var(--accent); text-decoration: none; font-weight: 600; }
#detail td a { color: var(--accent); text-decoration: none; }
#detail td a:hover { text-decoration: underline; }
.muted { color: #aeb6bf; }
.lowconf { color: #e8590c; font-weight: 700; }
.bed-mix { display: block; font-size: 11px; color: var(--muted); white-space: nowrap; text-align: left; margin-top: 5px; }

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: #1c2733;
  color: #fff;
  font-size: 13px;
  padding: 9px 18px;
  border-radius: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 9999;
  white-space: nowrap;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

footer {
  margin-top: 40px;
  padding-top: 18px;
  padding-bottom: 40px;
  color: var(--muted);
  font-size: 13px;
}
footer a { color: var(--accent); }