:root {
  --ink: #11161d;
  --ink-soft: #5b6675;
  --ink-faint: #8d97a5;
  --line: #dde3ea;
  --paper: #f6f8fa;
  --card: #ffffff;
  --accent: #1f6f5c;
  --accent-soft: #e6f2ee;
  --warn: #b4761f;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

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

code, .mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}

.topbar {
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 22px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.logo-grid {
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--accent);
  border-radius: 3px;
  position: relative;
}

.logo-grid::before,
.logo-grid::after {
  content: "";
  position: absolute;
  background: var(--accent);
  opacity: 0.55;
}

.logo-grid::before { left: 50%; top: 1px; bottom: 1px; width: 1.5px; }
.logo-grid::after { top: 50%; left: 1px; right: 1px; height: 1.5px; }

.topbar-note {
  margin-left: auto;
  color: var(--ink-faint);
  font-size: 13px;
}

.shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 26px 22px 56px;
}

.lede {
  margin: 0 0 24px;
  color: var(--ink-soft);
  max-width: 62ch;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 12px;
  margin-bottom: 26px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 13px 15px;
}

.card dt {
  margin: 0 0 5px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
}

.card dd {
  margin: 0;
  font-size: 21px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.card dd small {
  font-size: 13px;
  font-weight: 400;
  color: var(--ink-soft);
  margin-left: 4px;
}

.block {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 7px;
  margin-bottom: 22px;
  overflow: hidden;
}

.block-head {
  padding: 13px 17px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.block-head h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}

.block-head p {
  margin: 0;
  color: var(--ink-faint);
  font-size: 13px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 9px 17px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

th {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-faint);
  font-weight: 600;
}

tbody tr:last-child td { border-bottom: 0; }

td.num { text-align: right; font-variant-numeric: tabular-nums; }

.pill {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 12px;
  background: var(--accent-soft);
  color: var(--accent);
}

.pill.stale { background: #fbf1df; color: var(--warn); }

.calc {
  padding: 15px 17px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
  align-items: end;
}

.calc label {
  display: block;
  font-size: 12px;
  color: var(--ink-faint);
  margin-bottom: 4px;
}

.calc input {
  width: 100%;
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 5px;
  font: inherit;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: #fff;
  color: var(--ink);
}

.calc input:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}

.calc-out {
  grid-column: 1 / -1;
  padding: 10px 12px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--ink-soft);
  word-break: break-all;
}

.calc-out strong { color: var(--ink); font-weight: 600; }

.foot {
  color: var(--ink-faint);
  font-size: 13px;
  border-top: 1px solid var(--line);
  padding-top: 15px;
}

.foot a { color: var(--ink-soft); }

@media (max-width: 620px) {
  .topbar-note { display: none; }
  th:nth-child(4), td:nth-child(4) { display: none; }
}