:root {
  --paper: #ffffff;
  --ink: #111111;
  --ink-2: #555555;
  --ink-3: #767676;
  --rule: #111111;
  --rule-soft: #e2e2e2;
  --wash: #f4f4f2;
  --blue: #1f3fd9;
  --hue: #c2410c;
  --sans: "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.5 var(--sans);
}
a { color: var(--blue); }
a:focus-visible, button:focus-visible, input:focus-visible, th:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.wrap { max-width: 1240px; margin: 0 auto; padding: 0 16px; }

header.top { padding: 32px 0 20px; border-bottom: 2px solid var(--rule); }
header.top h1 {
  margin: 0 0 12px;
  font-size: clamp(30px, 5vw, 48px);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -0.02em;
}
header.top h1::before {
  content: "";
  display: block;
  width: 48px;
  height: 6px;
  background: var(--hue);
  margin-bottom: 16px;
}
.lede { margin: 0; max-width: 46em; font-size: 18px; color: var(--ink); }

/* Main figure: chart takes the height, reading and controls in a side column. */
.main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 32px;
  padding: 24px 0 32px;
  border-bottom: 1px solid var(--rule-soft);
}
.figure { min-width: 0; }
.fig-title { margin: 0 0 4px; font-size: 18px; font-weight: 700; }
.fig-sub { margin: 0 0 12px; color: var(--ink-2); font-size: 14px; }
.chart-box { position: relative; width: 100%; }
.chart-box svg { display: block; width: 100%; height: auto; overflow: visible; }

.side { font-size: 15px; }
.side h2 { font-size: 13px; font-weight: 700; margin: 0 0 8px; }
.side .group { margin-bottom: 22px; }
.side p { margin: 0 0 12px; }
.toggles { display: flex; flex-direction: column; gap: 6px; }
.toggles label { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.swatch { display: inline-block; width: 18px; height: 0; border-top: 3px solid; flex: none; }
.swatch.dash { border-top-style: dashed; }
.seg { display: inline-flex; border: 1px solid var(--ink); }
.seg button {
  font: inherit; font-size: 14px; background: var(--paper); color: var(--ink);
  border: 0; padding: 6px 12px; cursor: pointer;
}
.seg button + button { border-left: 1px solid var(--ink); }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.big { font-size: 34px; font-weight: 700; line-height: 1; letter-spacing: -0.02em; }
.big small { font-size: 15px; font-weight: 400; color: var(--ink-2); letter-spacing: 0; }
.stat { margin-bottom: 14px; }
.stat .label { color: var(--ink-2); font-size: 14px; }

.tip {
  position: absolute; pointer-events: none; background: var(--paper);
  border: 1px solid var(--ink); padding: 8px 10px; font-size: 13px; line-height: 1.4;
  min-width: 170px; display: none; z-index: 2;
}
.tip b { display: block; margin-bottom: 2px; }
.tip .row { display: flex; justify-content: space-between; gap: 12px; }
.tip .num { font-family: var(--mono); font-size: 12px; }

svg text { font-family: var(--sans); fill: var(--ink-2); }
svg .axis text { font-size: 12px; }
svg .grid line { stroke: var(--rule-soft); }
svg .zero { stroke: var(--ink); }
svg .recession { fill: var(--wash); }
svg .marker { stroke: var(--ink); stroke-dasharray: 2 3; }
svg .lbl { font-size: 13px; font-weight: 700; }

section.block { padding: 32px 0; border-bottom: 1px solid var(--rule-soft); }
section.block > h2 { font-size: 24px; margin: 0 0 8px; letter-spacing: -0.01em; }
section.block > .intro { margin: 0 0 20px; max-width: 46em; color: var(--ink); }
.note { color: var(--ink-2); font-size: 13px; max-width: 60em; }

.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.legend { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 13px; color: var(--ink-2); margin-bottom: 6px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.pair h3 { font-size: 16px; margin: 0 0 4px; }

/* By-major table */
.table-tools { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 12px; }
.table-tools input {
  font: inherit; font-size: 15px; padding: 6px 10px; border: 1px solid var(--ink);
  width: 260px; max-width: 100%;
}
.table-scroll { max-height: 640px; overflow: auto; border-top: 2px solid var(--rule); }
table.majors { width: 100%; border-collapse: collapse; font-size: 14px; }
table.majors th {
  position: sticky; top: 0; background: var(--paper); text-align: right;
  font-weight: 700; padding: 8px 8px; border-bottom: 1px solid var(--ink);
  cursor: pointer; user-select: none; white-space: nowrap; vertical-align: bottom;
}
table.majors th:first-child, table.majors td:first-child { text-align: left; }
table.majors th[aria-sort="ascending"]::after { content: " \2191"; }
table.majors th[aria-sort="descending"]::after { content: " \2193"; }
table.majors td { padding: 6px 8px; border-bottom: 1px solid var(--rule-soft); text-align: right; font-variant-numeric: tabular-nums; }
table.majors tr.tech td:first-child { font-weight: 700; }
table.majors tr.tech td:first-child::before {
  content: ""; display: inline-block; width: 8px; height: 8px; background: var(--hue); margin-right: 6px;
}
.bar { display: inline-block; height: 8px; background: var(--hue); vertical-align: middle; margin-left: 6px; }
.bar.u { background: var(--ink-3); }
td .cellwrap { display: inline-flex; align-items: center; justify-content: flex-end; gap: 0; }

/* Studies */
.studies { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 2px solid var(--rule); }
.study { padding: 18px 20px 18px 0; border-bottom: 1px solid var(--rule-soft); }
.study:nth-child(odd) { border-right: 1px solid var(--rule-soft); }
.study:nth-child(even) { padding-left: 20px; padding-right: 0; }
.study h3 { margin: 0 0 2px; font-size: 17px; }
.study .who { margin: 0 0 10px; color: var(--ink-2); font-size: 14px; }
.study .verdict { display: inline-block; font-size: 13px; font-weight: 700; padding: 2px 8px; margin-bottom: 10px; border: 1px solid var(--ink); }
.study .verdict.yes { background: var(--hue); color: #fff; border-color: var(--hue); }
.study dl { margin: 0; font-size: 14px; }
.study dt { font-weight: 700; margin-top: 8px; }
.study dd { margin: 2px 0 0; }
.study ul { margin: 4px 0 0; padding-left: 18px; }
.study li { margin-bottom: 4px; }

.sources ol { padding-left: 20px; font-size: 14px; max-width: 60em; }
.sources li { margin-bottom: 8px; }
footer.end { padding: 24px 0 48px; color: var(--ink-2); font-size: 13px; }

@media (max-width: 900px) {
  .main { grid-template-columns: 1fr; gap: 20px; }
  .side { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
  .side .reading { grid-column: 1 / -1; }
  .pair { grid-template-columns: 1fr; }
  .studies { grid-template-columns: 1fr; }
  .study, .study:nth-child(even) { padding: 18px 0; border-right: 0; }
}
@media (max-width: 520px) {
  .side { display: block; }
  .lede { font-size: 16px; }
  table.majors { font-size: 12px; }
  table.majors .hide-sm { display: none; }
  table.majors th { white-space: normal; font-size: 12px; }
  table.majors td, table.majors th { padding: 6px 4px; }
  .bar { display: none; }
}