:root {
  --ink: #1d1f21;
  --muted: #55595e;
  --rule: #d9dcdf;
  --a: #1a5fa8;
  --b: #b25b13;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  max-width: 1060px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

h1 {
  font-size: 24px;
  font-weight: 600;
  margin: 0 0 6px;
}

h2 {
  font-size: 17px;
  font-weight: 600;
  margin: 34px 0 10px;
}

.intro { color: var(--muted); max-width: 72ch; margin: 0 0 26px; }

a { color: var(--a); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- controls ---------------------------------------------------------- */

#controls {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  align-items: flex-end;
  padding: 14px 0 16px;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.control { display: flex; flex-direction: column; gap: 4px; }
.control label { font-size: 12.5px; color: var(--muted); }
.control small { color: var(--muted); font-weight: 400; }

select {
  font: inherit;
  font-size: 14px;
  padding: 4px 6px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: #fff;
  min-width: 300px;
}

.toggle { display: inline-flex; border: 1px solid var(--rule); border-radius: 3px; overflow: hidden; }
.toggle button {
  font: inherit;
  font-size: 14px;
  border: 0;
  background: #fff;
  color: var(--ink);
  padding: 4px 16px;
  cursor: pointer;
}
.toggle button.active { background: var(--ink); color: #fff; }

/* --- configuration lines ---------------------------------------------- */

.configs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 28px;
  padding: 12px 0 0;
  font-size: 13px;
  color: var(--muted);
}
.configs .config-a { color: var(--a); }
.configs .config-b { color: var(--b); }
.configs .config-detail { grid-column: 1 / -1; color: var(--muted); margin: 0; }

/* --- charts ------------------------------------------------------------ */

.panels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px 28px;
  margin-top: 20px;
}

.panel svg { display: block; width: 100%; height: auto; }
.panel-title svg.swatch { display: inline-block; width: 48px; height: 12px; vertical-align: middle; margin-right: 4px; }
.panel-title { font-size: 14px; font-weight: 600; margin: 0 0 2px; }
.panel-title .series { font-weight: 400; }
.panel-title .series-a { color: var(--a); }
.panel-title .series-b { color: var(--b); }

/* --- table -------------------------------------------------------------- */

.tabs { display: flex; gap: 4px; margin-bottom: 10px; }
.tabs button {
  font: inherit;
  font-size: 13.5px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: #fff;
  color: var(--ink);
  padding: 3px 14px;
  cursor: pointer;
}
.tabs button.active { background: var(--ink); border-color: var(--ink); color: #fff; }

#table-overflow { overflow-x: auto; }

table {
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
  font-size: 14px;
}

th, td {
  padding: 5px 14px 5px 0;
  text-align: right;
  border-bottom: 1px solid var(--rule);
  white-space: nowrap;
}

th {
  font-weight: 600;
  border-bottom: 1px solid var(--ink);
  font-size: 13px;
}

th:first-child, td:first-child { text-align: left; }
td.missing { color: #b3b7bb; }
th .head-a { color: var(--a); }
th .head-b { color: var(--b); }

.note { color: var(--muted); font-size: 13px; }

/* --- footer ------------------------------------------------------------- */

footer {
  margin-top: 44px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 13px;
}
footer p { margin: 4px 0; }

@media (max-width: 720px) {
  .configs { grid-template-columns: 1fr; }
  select { min-width: 0; width: 100%; }
  .control { flex: 1 1 160px; }
}