:root {
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.1);
  --dem: #2a78d6;
  --rep: #e34948;
  --ind: #898781;
  --safe-d: #1b5cae;
  --likely-d: #2a78d6;
  --lean-d: #86b6ef;
  --tossup: #ffffff;
  --lean-r: #f2a3a2;
  --likely-r: #e34948;
  --safe-r: #a82a2a;
  --none: #dcdbd5;
  --truth: #eb6834;
  --band: rgba(11, 11, 11, 0.12);
  --highlight: rgba(42, 120, 214, 0.14);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --page: #0d0d0d;
    --surface: #1a1a19;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.1);
    --dem: #3987e5;
    --rep: #e66767;
    --safe-d: #1f5fb3;
    --likely-d: #3987e5;
    --lean-d: #8fbcf1;
    --tossup: #ffffff;
    --lean-r: #f2a9a8;
    --likely-r: #e66767;
    --safe-r: #b13a3a;
    --none: #33332f;
    --truth: #d95926;
    --band: rgba(255, 255, 255, 0.16);
  --highlight: rgba(57, 135, 229, 0.24);
  }
}

:root[data-theme="dark"] {
  --page: #0d0d0d;
  --surface: #1a1a19;
  --ink: #ffffff;
  --ink-2: #c3c2b7;
  --muted: #898781;
  --grid: #2c2c2a;
  --axis: #383835;
  --border: rgba(255, 255, 255, 0.1);
  --dem: #3987e5;
  --rep: #e66767;
  --safe-d: #1f5fb3;
  --likely-d: #3987e5;
  --lean-d: #8fbcf1;
  --tossup: #ffffff;
  --lean-r: #f2a9a8;
  --likely-r: #e66767;
  --safe-r: #b13a3a;
  --none: #33332f;
  --truth: #d95926;
  --band: rgba(255, 255, 255, 0.16);
  --highlight: rgba(57, 135, 229, 0.24);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font:
    15px/1.5 system-ui,
    -apple-system,
    "Segoe UI",
    sans-serif;
}

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

h1 {
  margin: 0 0 4px;
  font-size: 28px;
}

h2 {
  margin: 32px 0 8px;
  font-size: 18px;
}

h3 {
  margin: 28px 0 4px;
  font-size: 16px;
}

.prose {
  max-width: 68ch;
}

ul.prose {
  padding-left: 20px;
}

ul.prose li {
  margin-bottom: 8px;
}

.meta,
.note,
footer {
  color: var(--ink-2);
}

.note {
  margin: 0 0 12px;
  font-size: 14px;
}

a {
  color: var(--dem);
}

.tabs {
  display: flex;
  gap: 4px;
  margin-top: 20px;
  border-bottom: 1px solid var(--axis);
}

.tabs button {
  padding: 8px 16px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: none;
  color: var(--ink-2);
  font: inherit;
  cursor: pointer;
}

.tabs a {
  padding: 8px 16px;
  border-bottom: 2px solid transparent;
  color: var(--ink-2);
  text-decoration: none;
}

.tabs .tab-end {
  margin-left: auto;
}

.tabs a[aria-current="page"],
.tabs button[aria-selected="true"] {
  border-bottom-color: var(--ink);
  color: var(--ink);
  font-weight: 600;
}

#seats svg,
#map svg {
  display: block;
  width: 100%;
  height: auto;
}

.seat-labels {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  font-size: 14px;
}

.seat-labels .party {
  font-size: 16px;
  font-weight: 600;
}

.seat-labels strong {
  font-size: 22px;
}

.seat-labels .right {
  text-align: right;
}

/* The 80% range as stacked +/- offsets, like a LaTeX superscript over a subscript. */
.pm {
  display: inline-flex;
  flex-direction: column;
  margin-left: 2px;
  font-size: 11px;
  line-height: 1.1;
  text-align: left;
  vertical-align: 8px;
  color: var(--ink-2);
}

.swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 6px;
  border-radius: 2px;
  vertical-align: baseline;
  box-shadow: inset 0 0 0 1px var(--border);
}

.legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 14px;
  margin-bottom: 8px;
  color: var(--ink-2);
  font-size: 13px;
}

.map-shape {
  stroke: var(--surface);
  stroke-width: 1;
}

.map-shape.hex {
  stroke: none;
}

.map-shape.active {
  cursor: pointer;
}

/* White toss-ups need an outline where they touch the page or other light shapes. */
.map-shape.tossup {
  stroke: var(--muted);
  stroke-width: 1;
}

.hover-outline {
  fill: none;
  stroke: var(--ink);
  stroke-width: 2;
  stroke-linejoin: round;
  pointer-events: none;
}

.hex-label {
  fill: var(--ink-2);
  font-size: 10px;
  font-weight: 600;
  text-anchor: middle;
  pointer-events: none;
}

#search {
  width: 100%;
  max-width: 420px;
  margin-bottom: 12px;
  padding: 8px 10px;
  border: 1px solid var(--axis);
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--grid);
  text-align: left;
}

th,
td.num {
  white-space: nowrap;
}

th {
  position: sticky;
  top: 0;
  background: var(--surface);
  color: var(--ink-2);
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}

th[aria-sort="ascending"]::after {
  content: " \2191";
}

th[aria-sort="descending"]::after {
  content: " \2193";
}

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

td.race,
td.forecast {
  white-space: nowrap;
}

.projection {
  display: flex;
  align-items: center;
  gap: 12px;
}

.projection .lead {
  min-width: 6.5em;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.projection .mini-hist svg {
  display: block;
}

.range {
  color: var(--muted);
  font-size: 12px;
}

.tooltip {
  position: fixed;
  z-index: 10;
  max-width: 380px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  color: var(--ink);
  font-size: 13px;
  pointer-events: none;
}

.tooltip .title {
  font-weight: 600;
}

.tooltip .rating {
  margin-left: 8px;
  font-weight: 400;
}

.tooltip .muted {
  color: var(--ink-2);
}

.tooltip .mini-hist svg {
  display: block;
  margin: 6px 0 4px;
}

footer {
  margin-top: 40px;
  font-size: 13px;
}

#races tbody tr {
  cursor: pointer;
}

#races tbody tr:hover,
#races tbody tr:focus-visible {
  background: var(--page);
  outline: none;
}

dialog {
  width: min(760px, calc(100% - 32px));
  max-height: calc(100% - 32px);
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
  /* Room for a scrollbar from the start, so charts don't change width once content overflows. */
  scrollbar-gutter: stable;
}

dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
}

.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.modal-head h2 {
  margin: 0;
}

.modal-sub {
  margin: 4px 0 0;
  color: var(--ink-2);
}

.close {
  border: 0;
  background: none;
  color: var(--ink-2);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
}

.stepper {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.stepper button,
.step-nav button {
  padding: 5px 10px;
  border: 1px solid var(--axis);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-2);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

.stepper button.done {
  border-color: var(--ink-2);
  color: var(--ink);
}

.stepper button[aria-current="step"] {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--surface);
}

.step-text {
  max-width: 68ch;
  min-height: 4.5em;
  margin: 4px 0 8px;
}

.step-stats {
  margin: 0 0 4px;
}

.muted {
  color: var(--ink-2);
}

.step-nav {
  display: flex;
  justify-content: space-between;
  margin: 8px 0 16px;
}

.step-nav button {
  padding: 6px 16px;
  font-size: 14px;
}

.step-nav button:disabled {
  opacity: 0.4;
  cursor: default;
}

.modal-note {
  margin: 12px 0 0;
  color: var(--ink-2);
  font-size: 13px;
}

.lead {
  margin-top: 24px;
  font-size: 16px;
}

/* The About page's walkthrough: the one-line model, pinned while the chart below is stepped
   through with buttons. */
.equation-bar {
  position: sticky;
  top: 0;
  z-index: 3;
  margin: 16px -16px 0;
  padding: 0 16px 6px;
  border-bottom: 1px solid var(--grid);
  background: var(--page);
}

.equation {
  overflow-x: auto;
  font-size: 17px;
}

.equation .katex-display {
  margin: 6px 0 2px;
}

.equation-note {
  margin: 0;
  color: var(--ink-2);
  font-size: 14px;
  text-align: center;
}

/* The terms in play stand out in the accent color. */
.equation-bar .term {
  border-radius: 4px;
  transition:
    color 0.2s,
    background-color 0.2s;
}

.equation-bar .term.active {
  background: color-mix(in srgb, var(--truth) 20%, transparent);
  color: var(--truth);
}

.glossary {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 4px 24px;
  margin: 12px 0 24px;
  color: var(--ink-2);
  font-size: 13px;
}

/* Symbol and description in their own columns, so a wrapped line stays under the description. */
.gloss {
  display: grid;
  grid-template-columns: 2.6em 1fr;
  gap: 8px;
}

.gloss .sym {
  color: var(--ink);
  text-align: right;
}

.walk {
  display: grid;
  grid-template-columns: minmax(240px, 320px) 1fr;
  gap: 16px 32px;
}

.walk-text {
  grid-row: 1;
  grid-column: 1;
}

.walk-text h3 {
  margin-top: 0;
}

.walk-text p {
  margin: 0 0 12px;
}

.stage {
  position: relative;
  grid-row: 1;
  grid-column: 2;
  /* Short enough that the pinned equation, the chart and the buttons fit on one screen. */
  height: clamp(380px, calc(100vh - 200px), 620px);
  overflow: hidden;
}

.scene {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s;
}

.scene.active {
  opacity: 1;
  pointer-events: auto;
}

.scene svg {
  display: block;
  overflow: visible;
}

/* Previous and the step count on the left, Replay in the middle, Next on the right. */
.walk-nav {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--grid);
}

.walk-back {
  display: flex;
  grid-column: 1;
  align-items: center;
  gap: 12px;
}

#walk-count {
  color: var(--ink-2);
  font-size: 14px;
}

#walk-replay {
  display: inline-flex;
  grid-column: 2;
  align-items: center;
  gap: 6px;
}

#walk-replay[hidden] {
  display: none;
}

#walk-next {
  grid-column: 3;
  justify-self: end;
}

.walk-nav button {
  padding: 6px 16px;
  border: 1px solid var(--axis);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}

#walk-next {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--page);
}

.walk-nav button:disabled {
  opacity: 0.4;
  cursor: default;
}

.finale {
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: 100%;
}

.finale-top {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 16px;
  height: 42%;
}

/* About three race panels fit across; the rest fade off to the right. */
.finale-races {
  display: grid;
  flex: 1;
  grid-template-rows: repeat(2, 1fr);
  grid-auto-columns: var(--panel-w, 200px);
  grid-auto-flow: column;
  gap: 12px 16px;
  -webkit-mask-image: linear-gradient(to right, #000 60%, transparent 98%);
  mask-image: linear-gradient(to right, #000 60%, transparent 98%);
}

.panel {
  position: relative;
  min-width: 0;
  min-height: 0;
}

.panel canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.bubble {
  cursor: pointer;
}

.bubble:hover circle,
.bubble:focus-visible circle {
  stroke: var(--ink);
  stroke-width: 2;
}

@media (max-width: 799px) {
  .equation {
    font-size: 12px;
  }

  /* Chart, then the buttons, then the text, so the buttons stay put as the text changes. */
  .walk {
    grid-template-columns: 1fr;
  }

  .stage {
    grid-column: 1;
    height: min(460px, 60vh);
  }

  .walk-nav {
    grid-row: 2;
  }

  .walk-text {
    grid-row: 3;
  }
}