/* Celeritas: wheat on black, set in EB Garamond. */

:root {
  --bg: #000;
  --ink: #f5deb3; /* wheat */
  --ink-2: rgb(245 222 179 / 0.78);
  --ink-3: rgb(245 222 179 / 0.6); /* muted text, 5.8:1 on black */
  --line: rgb(245 222 179 / 0.2);
  --bar: rgb(245 222 179 / 0.38);
  --fill: #ffffff10;
  --fill-hover: #ffffff20;
  --serif: 'EB Garamond', Garamond, 'Times New Roman', serif;
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  background: var(--bg);
  -webkit-text-size-adjust: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  font-variant-numeric: lining-nums;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

button {
  color: inherit;
  font: inherit;
}

:focus-visible {
  outline: 1px solid var(--ink);
  outline-offset: 4px;
  border-radius: 2px;
}

.stage {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: center;
  width: 100%;
  padding: max(24px, 6vh) 16px 32px;
}

.brand {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.02em;
}

/* The globe, with a sonar ring for each answered request. */

.globe {
  position: relative;
  width: min(300px, 72vw, 38vh);
  aspect-ratio: 1;
}

.globe img {
  display: block;
  width: 100%;
  height: 100%;
}

.ring {
  position: absolute;
  inset: 5%; /* the Earth's edge inside the image */
  border: 1px solid var(--ink);
  border-radius: 50%;
  pointer-events: none;
  animation: sonar 1.3s cubic-bezier(0.2, 0.6, 0.3, 1) forwards;
}

@keyframes sonar {
  from {
    opacity: 0.45;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(1.32);
  }
}

/* Buttons */

.primary {
  min-width: 9.5em;
  margin-top: 12px;
  padding: 10px 24px;
  border: 0;
  border-radius: 2px;
  background: var(--fill);
  color: var(--ink);
  font-size: 18px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.primary:hover:not(:disabled) {
  background: var(--fill-hover);
}

.primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.quiet {
  padding: 2px;
  border: 0;
  background: none;
  color: var(--ink-3);
  font-size: 16px;
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 3px;
  cursor: pointer;
  transition: color 0.2s ease;
}

.quiet:hover {
  color: var(--ink);
}

.hint {
  margin: 8px 0 0;
  color: var(--ink-3);
  font-size: 15px;
}

@media (hover: none) {
  .hint {
    display: none;
  }
}

/* Result */

.result {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 20px;
  text-align: center;
}

.reading {
  margin: 0;
  font-size: clamp(64px, 17vw, 92px);
  letter-spacing: -0.01em;
  line-height: 1;
}

.reading .unit {
  margin-left: 0.12em;
  color: var(--ink-2);
  font-size: 0.3em;
  letter-spacing: 0;
}

/* Dimmed while the number is still settling. */
.reading.is-live .value {
  color: var(--ink-2);
}

.note {
  margin: 6px 0 0;
  color: var(--ink-3);
  font-size: 16px;
}

/* With no number to show, the note is the headline, as in the original. */
.reading[hidden] + .note {
  max-width: 24em;
  margin-top: 0;
  color: var(--ink);
  font-size: 24px;
}

.stats {
  margin: 10px 0 0;
  color: var(--ink-2);
  font-size: 17px;
}

/* The top margin leaves room for the hover label, so it never covers the stats. */
.spark {
  position: relative;
  width: min(240px, 72vw);
  margin: 26px 0 0;
}

.spark:focus-visible {
  outline-offset: 6px;
}

.spark svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
  touch-action: pan-y;
}

.spark-line {
  fill: none;
  stroke: var(--ink);
  stroke-width: 2px;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.spark-median {
  stroke: var(--line);
  stroke-width: 1px;
  vector-effect: non-scaling-stroke;
}

.spark-lost {
  stroke: var(--ink-3);
  stroke-width: 1.5px;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
}

.spark-cross {
  stroke: var(--ink-3);
  stroke-width: 1px;
  vector-effect: non-scaling-stroke;
}

.spark-dot {
  fill: var(--ink);
  stroke: var(--bg);
  stroke-width: 2px;
}

.spark-tip {
  position: absolute;
  bottom: 100%;
  margin: 0 0 2px;
  padding: 0 6px;
  transform: translateX(-50%);
  color: var(--ink);
  font-size: 14px;
  line-height: 20px;
  white-space: nowrap;
  pointer-events: none;
}

.verdict {
  max-width: 28em;
  margin: 16px 0 0;
  font-size: 19px;
  font-style: italic;
  text-wrap: balance;
}

#copy {
  margin-top: 8px;
}

/* Around the world */

.world {
  width: min(600px, 100%);
  margin-top: 44px;
}

.world h2 {
  margin: 0;
  color: var(--ink-2);
  font-size: 18px;
  font-variant-caps: all-small-caps;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-align: center;
}

.world-note {
  margin: 0 0 14px;
  color: var(--ink-3);
  font-size: 15px;
  text-align: center;
}

.world-list {
  display: grid;
  gap: 0 40px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 640px) {
  .world-list {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: repeat(6, auto);
    grid-auto-flow: column;
  }
}

.region {
  display: grid;
  grid-template-columns: 6.5em minmax(0, 1fr);
  align-items: center;
  min-height: 30px;
  font-size: 16px;
}

.city {
  overflow: hidden;
  color: var(--ink-2);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.track {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

/* One scale for every bar, all growing from the same edge. */
.bar {
  flex: none;
  width: calc(var(--share, 0) * (100% - 4.5em));
  height: 6px;
  border-radius: 0 3px 3px 0;
  background: var(--bar);
  transition: width 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.ms {
  color: var(--ink-2);
  font-size: 15px;
  font-variant-numeric: lining-nums tabular-nums;
  white-space: nowrap;
}

.region[data-state='failed'] .ms {
  color: var(--ink-3);
  font-style: italic;
}

.region[data-state='pending'] .ms::after {
  content: '···';
  color: var(--ink-3);
  animation: waiting 1.2s ease-in-out infinite;
}

@keyframes waiting {
  50% {
    opacity: 0.3;
  }
}

.region.is-fastest .bar {
  background: var(--ink);
}

.region.is-fastest .city,
.region.is-fastest .ms {
  color: var(--ink);
}

/* Footer and dialog */

.foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 4px 10px;
  padding: 16px 16px 24px;
  color: var(--ink-3);
  font-size: 15px;
}

.foot .quiet {
  font-size: 15px;
}

.sep {
  color: var(--line);
}

.languages {
  display: inline-flex;
  gap: 2px;
}

.languages button {
  padding: 2px 4px;
  border: 0;
  background: none;
  color: var(--ink-3);
  font-size: 15px;
  cursor: pointer;
}

.languages button:hover,
.languages button[aria-pressed='true'] {
  color: var(--ink);
}

.about {
  width: min(34rem, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--bg);
  color: var(--ink);
}

.about::backdrop {
  background: rgb(0 0 0 / 0.75);
}

.about-body {
  padding: 28px 28px 24px;
}

.about h2 {
  margin: 0 0 12px;
  font-size: 26px;
  font-weight: 400;
}

.about p {
  margin: 0 0 12px;
  color: var(--ink-2);
  font-size: 17px;
}

.about form {
  display: flex;
  justify-content: flex-end;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  border: 0;
  clip-path: inset(50%);
  white-space: nowrap;
}

.noscript {
  margin: 0;
  padding: 12px 16px;
  color: var(--ink-2);
  text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  .bar {
    transition: none;
  }

  .region[data-state='pending'] .ms::after {
    animation: none;
  }
}

@media (forced-colors: active) {
  .bar,
  .region.is-fastest .bar {
    background: CanvasText;
  }

  .spark-dot {
    fill: CanvasText;
  }
}