:root {
  color-scheme: light dark;
  --background: light-dark(#ffffff, #181818);
  --foreground: light-dark(#1a1c1f, #f7f7f7);
  --muted: light-dark(#6b7280, #a7a7a7);
  --border: light-dark(#e3e5e8, #3b3b3b);
  --accent: light-dark(#edf3ff, #263248);
  --popover: light-dark(#ffffff, #2d2d2d);
  --maximum: light-dark(oklch(0.55 0.2 25), oklch(0.72 0.19 25));
  --minimum: light-dark(oklch(0.52 0.19 255), oklch(0.72 0.16 250));
  --focus: light-dark(#2457c5, #91b8ff);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  background: var(--background);
  color: var(--foreground);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--background);
  color: var(--foreground);
}

[hidden] {
  display: none !important;
}

button,
input {
  font: inherit;
}

button {
  border: 1px solid var(--foreground);
  border-radius: 0.45rem;
  background: var(--foreground);
  color: var(--background);
  cursor: pointer;
  font-weight: 600;
  padding: 0.65rem 0.9rem;
}

button:hover {
  opacity: 0.88;
}

button:disabled {
  cursor: wait;
  opacity: 0.55;
}

input {
  min-width: 14rem;
  width: min(25rem, 56vw);
  border: 1px solid var(--border);
  border-radius: 0.45rem;
  background: var(--background);
  color: var(--foreground);
  padding: 0.65rem 0.75rem;
}

button:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

a {
  color: inherit;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  max-width: 12ch;
  font-size: clamp(2.45rem, 7vw, 4.5rem);
  font-weight: 650;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

h2 {
  font-size: 1rem;
  line-height: 1.3;
}

.page-shell {
  width: 100%;
  padding: 1rem;
}

.secondary,
#coordinates,
#status {
  color: var(--muted);
}

.picker-screen {
  position: relative;
  display: grid;
  min-height: calc(100vh - 2rem);
  place-items: center;
  overflow: hidden;
  border-radius: 1.5rem;
  background:
    radial-gradient(circle at 14% 18%, color-mix(in oklab, var(--minimum) 16%, transparent), transparent 34%),
    radial-gradient(circle at 86% 78%, color-mix(in oklab, var(--maximum) 15%, transparent), transparent 36%),
    linear-gradient(145deg, color-mix(in oklab, var(--background) 95%, var(--minimum)), color-mix(in oklab, var(--background) 96%, var(--maximum)));
}

.picker-card {
  position: relative;
  z-index: 1;
  width: min(46rem, calc(100% - 2rem));
  padding: clamp(1.5rem, 6vw, 3.5rem);
  border: 1px solid color-mix(in oklab, var(--foreground) 10%, transparent);
  border-radius: 1.5rem;
  background: color-mix(in oklab, var(--background) 86%, transparent);
  box-shadow:
    0 1px 0 color-mix(in oklab, var(--foreground) 5%, transparent),
    0 2rem 5rem color-mix(in oklab, var(--foreground) 10%, transparent);
  backdrop-filter: blur(24px);
}

.picker-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.weather-mark {
  display: grid;
  flex: 0 0 auto;
  width: 4.5rem;
  gap: 0.3rem;
}

.weather-mark span {
  display: block;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--minimum), var(--maximum));
}

.weather-mark span:nth-child(2) {
  width: 78%;
  margin-left: 18%;
}

.weather-mark span:nth-child(3) {
  width: 55%;
  margin-left: 7%;
}

.eyebrow {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.35rem 0.65rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.brand-name {
  color: var(--foreground);
  font-size: 1rem;
  letter-spacing: 0.06em;
}

.picker-subtitle {
  max-width: 38rem;
  margin-top: 1rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.5;
}

.location-search {
  display: grid;
  gap: 0.35rem;
  margin-top: 1.25rem;
}

.location-search label {
  font-size: 0.8rem;
  font-weight: 600;
}

.search-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.5rem;
}

.picker-card input {
  width: 100%;
  min-width: 0;
  min-height: 3.5rem;
  border-color: color-mix(in oklab, var(--foreground) 16%, transparent);
  border-radius: 0.8rem;
  background: color-mix(in oklab, var(--background) 84%, transparent);
  padding-inline: 1rem;
  box-shadow: inset 0 1px 0 color-mix(in oklab, var(--foreground) 4%, transparent);
}

.picker-card button {
  min-height: 3.5rem;
  border-radius: 0.8rem;
  padding-inline: 1.15rem;
  white-space: nowrap;
}

.picker-card button span {
  display: inline-block;
  margin-left: 0.35rem;
  transition: transform 150ms ease;
}

.picker-card button:hover span {
  transform: translateX(0.18rem);
}

.search-results {
  margin-top: 1.25rem;
  padding-top: 1.1rem;
  border-top: 1px solid color-mix(in oklab, var(--foreground) 10%, transparent);
}

.location-results {
  display: grid;
  max-height: min(21rem, 42vh);
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  list-style: none;
  scrollbar-gutter: stable;
}

.picker-card .location-result {
  display: grid;
  width: 100%;
  min-height: auto;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  border-color: color-mix(in oklab, var(--foreground) 12%, transparent);
  background: color-mix(in oklab, var(--background) 58%, transparent);
  color: var(--foreground);
  padding: 0.75rem 2.6rem 0.75rem 0.85rem;
  text-align: left;
  white-space: normal;
}

.picker-card .location-result::after {
  content: "→";
  margin-right: -1.65rem;
  color: var(--muted);
}

.picker-card .location-result:hover {
  background: var(--accent);
  opacity: 1;
}

.picker-card .location-result:focus-visible {
  border-color: var(--focus);
  outline: none;
  background: var(--accent);
  box-shadow: inset 0 0 0 1px var(--focus);
}

.location-result strong,
.location-result small {
  display: block;
}

.location-result strong {
  font-size: 0.9rem;
}

.location-result small {
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 400;
}

.picker-screen #status,
.picker-screen .error {
  margin-top: 0.6rem;
}

.picker-screen #status:empty {
  display: none;
}

.chart-header,
.legend {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.chart-header {
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

#coordinates,
#status,
.legend,
.error {
  font-size: 0.875rem;
}

#coordinates {
  margin-top: 0.1rem;
}

.change-location {
  border-color: var(--border);
  background: transparent;
  color: var(--foreground);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.45rem 0.65rem;
}

.legend {
  margin-bottom: 0.75rem;
}

.chart-status {
  margin: 0 0 0.75rem;
  font-size: 0.875rem;
}

.legend-key {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.scale-label {
  white-space: nowrap;
}

.unit-toggle {
  min-height: 0;
  border: 0;
  border-bottom: 1px dotted currentColor;
  border-radius: 0;
  background: transparent;
  color: inherit;
  font-size: inherit;
  line-height: inherit;
  padding: 0 0.1rem;
}

.unit-toggle:hover {
  opacity: 1;
  border-bottom-style: solid;
}

.swatch {
  display: inline-block;
  width: 1.25rem;
  height: 2px;
}

.swatch-max {
  background: linear-gradient(90deg, color-mix(in oklab, var(--maximum) 8%, transparent), var(--maximum));
}

.swatch-min {
  background: linear-gradient(90deg, color-mix(in oklab, var(--minimum) 8%, transparent), var(--minimum));
}

.chart-wrap {
  position: relative;
  width: 100%;
}

#temperature-chart {
  display: block;
  width: 100%;
  overflow: visible;
}

.month,
.year,
.axis-note {
  fill: var(--muted);
  font-size: 12px;
  font-weight: 400;
}

.year-decade {
  fill: var(--foreground);
  font-weight: 600;
}

.month-grid,
.decade-grid {
  stroke: var(--border);
  stroke-width: 1;
}

.month-grid {
  stroke-opacity: 0.45;
}

.spread {
  pointer-events: none;
}

.spread-hot {
  fill: var(--maximum);
}

.spread-cold {
  fill: var(--minimum);
}

.max-line,
.min-line {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.max-line {
  stroke: var(--maximum);
}

.min-line {
  stroke: var(--minimum);
}

.hit {
  fill: transparent;
  cursor: crosshair;
}

.focus-row {
  fill: var(--accent);
  opacity: 0;
  pointer-events: none;
}

.crosshair {
  stroke: var(--foreground);
  stroke-width: 1;
  opacity: 0;
  pointer-events: none;
}

.dot-max,
.dot-min {
  opacity: 0;
  pointer-events: none;
  stroke: var(--background);
  stroke-width: 1;
}

.dot-max {
  fill: var(--maximum);
}

.dot-min {
  fill: var(--minimum);
}

.tooltip {
  position: absolute;
  max-width: 15rem;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 0.45rem;
  background: var(--popover);
  color: var(--foreground);
  box-shadow: 0 0.5rem 1.4rem color-mix(in oklab, var(--foreground) 12%, transparent);
  font-size: 0.875rem;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, calc(-100% - 8px));
}

.tooltip.is-visible {
  opacity: 1;
}

.tooltip strong {
  display: block;
  margin-bottom: 0.15rem;
}

.error {
  color: light-dark(#a51d2d, #ff949e);
  margin-top: 0.5rem;
}

@media (max-width: 680px) {
  .page-shell {
    padding: 0.5rem;
  }

  .picker-screen {
    min-height: calc(100vh - 1rem);
    border-radius: 1rem;
  }

  .picker-card {
    width: min(100% - 1rem, 34rem);
    border-radius: 1.1rem;
  }

  .search-row {
    grid-template-columns: 1fr;
  }

  input {
    min-width: 0;
    width: 100%;
  }

  .picker-card button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .focus-row,
  .crosshair,
  .dot-max,
  .dot-min,
  .tooltip {
    transition: opacity 100ms ease;
  }
}