:root {
  color-scheme: dark;
  --bg: #0b1723;
  --panel: #132433;
  --text: #edf4fa;
  --muted: #a6bdcc;
  --line: #2a4051;
  --accent: #71d4ed;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font:
    16px/1.6 system-ui,
    sans-serif;
}
body.light {
  color-scheme: light;
  --bg: #f2f6fa;
  --panel: #fff;
  --text: #122c40;
  --muted: #496476;
  --line: #cbd7df;
  --accent: #096783;
}
a {
  color: var(--accent);
}
header,
main,
footer {
  max-width: 1200px;
  margin: auto;
  padding: 24px;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.brand {
  font-weight: 850;
  letter-spacing: 3px;
  font-size: 26px;
  text-decoration: none;
  color: var(--text);
}
.brand span {
  display: block;
  font-size: 12px;
  letter-spacing: 1px;
  font-weight: 400;
  color: var(--muted);
}
nav {
  display: flex;
  gap: 22px;
  align-items: center;
  font-size: 14px;
}
button,
select {
  font: inherit;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 12px;
  cursor: pointer;
}
button:hover {
  border-color: var(--accent);
}
button:focus-visible,
a:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}
.intro {
  display: flex;
  justify-content: space-between;
  gap: 25px;
  padding: 28px 0;
}
h1 {
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.15;
  margin: 6px 0 12px;
  letter-spacing: -1px;
}
h2 {
  font-size: 22px;
  margin: 0;
}
p {
  margin: 8px 0;
}
.eyebrow {
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--accent);
  font-weight: 700;
}
.intro p:not(.eyebrow),
.muted,
.section-title span,
footer {
  color: var(--muted);
}
aside {
  border-left: 2px solid var(--accent);
  padding: 10px 22px;
  max-width: 340px;
  align-self: center;
}
aside strong {
  font-size: 30px;
}
aside small {
  display: block;
  font-size: 13px;
  color: var(--muted);
}
#status {
  padding: 12px 0;
  color: var(--muted);
  font-size: 14px;
}
.section-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin: 20px 0;
}
.section-title span {
  font-size: 14px;
}
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.card,
.day,
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
}
.card strong {
  font-size: 32px;
  display: block;
}
.card span,
.day small {
  font-size: 14px;
  color: var(--muted);
}
.panel {
  margin: 24px 0;
}
.panel .section-title {
  margin-top: 0;
}
#legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
  margin: 16px 0;
}
#legend span {
  border-bottom: 3px solid var(--c);
  padding-bottom: 3px;
}
svg {
  width: 100%;
  height: auto;
  display: block;
}
svg text {
  fill: var(--muted);
  font-size: 13px;
}
svg .grid {
  stroke: var(--line);
}
.days {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
  gap: 10px;
}
.day {
  padding: 16px;
}
.day strong {
  display: block;
  font-size: 21px;
  margin: 12px 0;
}
.day small {
  display: block;
}
.muted {
  font-size: 14px;
}
summary {
  cursor: pointer;
  font-weight: 650;
}
.table-wrap {
  overflow-x: auto;
}
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 14px;
  white-space: nowrap;
}
td,
th {
  text-align: left;
  padding: 12px;
  border-bottom: 1px solid var(--line);
}
.method p {
  max-width: 90ch;
  color: var(--muted);
}
footer {
  font-size: 13px;
  padding-bottom: 40px;
}
@media (max-width: 680px) {
  header,
  main,
  footer {
    padding: 18px;
  }
  header {
    align-items: flex-start;
  }
  nav {
    flex-direction: column;
    gap: 10px;
    align-items: flex-end;
    font-size: 12px;
  }
  .intro,
  .section-title {
    flex-direction: column;
    align-items: flex-start;
  }
  .intro {
    padding-top: 20px;
  }
  aside {
    align-self: stretch;
    max-width: none;
  }
  .cards {
    grid-template-columns: 1fr;
  }
  .card {
    padding: 16px;
  }
  .card strong {
    font-size: 28px;
  }
  .panel {
    padding: 14px;
  }
  #chart {
    overflow-x: auto;
  }
  #chart svg {
    min-width: 600px;
  }
  .days {
    grid-template-columns: repeat(2, 1fr);
  }
}
input {
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px;
  max-width: 100%;
}
input[type="number"] {
  width: 100px;
}
input[type="text"] {
  display: block;
  width: 100%;
  margin-top: 8px;
}
input[type="checkbox"] {
  width: 20px;
  height: 20px;
  vertical-align: middle;
  accent-color: var(--accent);
}
.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
  margin: 16px 0;
}
.legend span {
  border-bottom: 3px solid var(--c);
  padding-bottom: 3px;
}
.days {
  grid-template-columns: repeat(7, minmax(0, 1fr));
}
.day {
  color: var(--text);
  text-align: left;
  width: 100%;
  font: inherit;
  cursor: pointer;
}
.day[aria-pressed="true"] {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.day strong {
  font-size: 19px;
}
.day .tag {
  font-size: 12px;
  color: var(--accent);
  display: block;
}
.day .raw {
  font-size: 12px;
  color: var(--muted);
}
.notice {
  padding: 12px;
  border-left: 3px solid var(--accent);
}
#message {
  padding: 12px 0;
}
#daily-chart svg,
#chart svg {
  min-width: 0;
}
#daily-chart,
#chart {
  overflow: visible;
}
svg text {
  font-size: 12px;
}
button:disabled {
  opacity: 0.5;
  cursor: default;
}
[hidden] {
  display: none !important;
}
@media (max-width: 1000px) {
  .days {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
@media (max-width: 680px) {
  .days {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .day strong {
    font-size: 20px;
  }
  .intro h1 {
    font-size: 36px;
  }
  nav {
    font-size: 14px;
  }
  .legend {
    gap: 12px;
  }
  .brand span {
    letter-spacing: 0;
  }
  .section-title label {
    width: 100%;
  }
  select {
    max-width: 100%;
  }
}

#calibration-footnote,
#precipitation-footnote {
  max-width: none;
  align-self: auto;
  border-left: 3px solid var(--accent);
}

.day .weather-icon {
  display: block;
  font-size: 34px;
  line-height: 1.2;
  margin: 12px 0 6px;
}
.day .weather-label {
  display: block;
  font-size: 12px;
  min-height: 2.5em;
  color: var(--muted);
}
.day .snow-amount,
.day .snow-positive {
  font-size: 12px;
}
.day .snow-positive {
  color: var(--accent);
  font-weight: 700;
}