/* The approved phone composition is shared by every screen. Capping its
   design unit prevents viewport-based sizes from growing beyond a 750px page. */
:root {
  --composition-unit: min(1vw, 7.5px);
  --link-hover: #ffb46f;
}

body a:hover,
body a:focus-visible {
  color: #653100;
  background-color: var(--link-hover);
  text-decoration: underline;
  text-decoration-color: currentColor;
  border-radius: 2px;
}

.page {
  width: 100%;
  max-width: 750px;
  padding: 0 calc(2.666667 * var(--composition-unit));
}

header {
  position: relative;
  height: calc(19.2 * var(--composition-unit));
  min-height: 61px;
  border: 0;
  justify-content: center;
}
header #mobile-brand {
  position: absolute;
  display: block;
  top: calc(4 * var(--composition-unit));
  left: 50%;
  width: calc(20 * var(--composition-unit));
  height: auto;
  transform: translateX(-50%);
}
header .edition {
  position: absolute;
  top: calc(7.2 * var(--composition-unit));
  right: calc(2.133333 * var(--composition-unit));
  max-width: none;
  margin: 0;
  font-size: calc(3.2 * var(--composition-unit));
  line-height: 1.3;
  letter-spacing: 0;
  white-space: nowrap;
}
header #help,
.air-window #metric-info {
  display: none;
}

.intro {
  padding: calc(3.466667 * var(--composition-unit)) 0 calc(1.6 * var(--composition-unit));
  text-align: center;
}
.intro .eyebrow {
  font-size: calc(4.266667 * var(--composition-unit));
  line-height: 1.4;
  letter-spacing: calc(.16 * var(--composition-unit));
}
.intro h1 {
  margin: calc(2.933333 * var(--composition-unit)) 0 0;
  font-size: calc(11.2 * var(--composition-unit));
  line-height: 1.08;
  letter-spacing: calc(-.16 * var(--composition-unit));
}
.intro .desktop-title,
.desktop-share-label,
#region-time {
  display: none;
}
.intro .mobile-title,
.mobile-share-label {
  display: inline;
}
.intro .mobile-title .burnt,
.intro .mobile-title > span {
  color: #bd261e;
}

body .checker,
body[data-tone] .checker,
body[data-level] .checker,
body[data-state] .checker {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding-bottom: 0;
}
.checker .region-row {
  order: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin: 0 0 calc(3.733333 * var(--composition-unit));
}
.checker .region-row select,
#region-time {
  display: none;
}
.region-buttons {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: calc(1.6 * var(--composition-unit));
  width: 100%;
  margin: calc(2.133333 * var(--composition-unit)) 0 calc(3.2 * var(--composition-unit));
}
.region-buttons button {
  min-width: 0;
  min-height: max(44px, calc(8 * var(--composition-unit)));
  padding: calc(1.6 * var(--composition-unit)) calc(1.066667 * var(--composition-unit));
  border: 0;
  border-radius: calc(2.666667 * var(--composition-unit));
  background: #fff;
  color: var(--window-ink);
  font: 500 calc(4 * var(--composition-unit))/1.2 Fraunces, Georgia, serif;
  white-space: nowrap;
}
.region-buttons button[aria-pressed="true"] {
  color: #bd261e;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: .22em;
}
.region-buttons button:hover {
  color: #b25c25;
}
.region-buttons button:focus-visible {
  outline: 3px solid #00a48c;
  outline-offset: 3px;
}
#region-name {
  margin: 0;
  font: inherit;
  font-size: calc(6.133333 * var(--composition-unit));
  line-height: 1.5;
  text-align: center;
}
#mobile-region-time {
  display: block;
  max-width: 100%;
  margin-top: calc(1.333333 * var(--composition-unit));
  font-size: calc(4.933333 * var(--composition-unit));
  line-height: 1.5;
  text-align: center;
  white-space: pre-line;
  overflow-wrap: anywhere;
}
#mobile-region-time:empty {
  display: none;
}
.checker > #notice {
  order: 2;
  margin: 0 0 calc(3.733333 * var(--composition-unit));
  padding: calc(2.666667 * var(--composition-unit)) calc(3.2 * var(--composition-unit));
  border-radius: calc(1.866667 * var(--composition-unit));
  font-size: clamp(11px, calc(2.933333 * var(--composition-unit)), 22px);
}
.checker > #notice[hidden] {
  display: none;
}

.air-window {
  order: 3;
  width: 100%;
  height: calc(76 * var(--composition-unit));
  min-height: 0;
  aspect-ratio: auto;
  border-width: calc(2.666667 * var(--composition-unit));
  box-shadow: none;
}
.air-window::before {
  inset: calc(5.333333 * var(--composition-unit)) 0;
  width: auto;
  background: linear-gradient(to right,
    transparent calc(33.333333% - .5px),
    #ffffffbd calc(33.333333% - .5px),
    #ffffffbd calc(33.333333% + .5px),
    transparent calc(33.333333% + .5px),
    transparent calc(66.666667% - .5px),
    #ffffffbd calc(66.666667% - .5px),
    #ffffffbd calc(66.666667% + .5px),
    transparent calc(66.666667% + .5px));
}
.air-window::after {
  border-top-width: calc(.8 * var(--composition-unit));
  border-left-width: calc(.8 * var(--composition-unit));
}
.air-window .reading {
  display: flex;
  align-items: center;
  width: 100%;
  height: 100%;
  min-height: 0;
  padding: 0;
}
.air-window .metrics-pair {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: 100%;
  align-items: stretch;
  gap: 0;
}
.air-window .metric-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 calc(1.333333 * var(--composition-unit));
}
.air-window .metric-label {
  min-height: 0;
  font-size: clamp(10px, calc(2.933333 * var(--composition-unit)), 22px);
  line-height: 1.5;
  letter-spacing: 0;
  white-space: nowrap;
}
.air-window .number-line {
  width: 100%;
  flex: none;
  justify-content: center;
  position: relative;
  min-height: calc(11.733333 * var(--composition-unit));
  margin-top: calc(3.466667 * var(--composition-unit));
  line-height: 1;
  gap: 0;
}
.air-window #pm-number,
.air-window #raw-pm-number,
.air-window #psi-main-number {
  font: 600 calc(11.733333 * var(--composition-unit))/1 Fraunces, Georgia, serif;
  letter-spacing: calc(-.533333 * var(--composition-unit));
}
.air-window .metric-panel .band {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 100%;
  min-height: calc(8.133333 * var(--composition-unit));
  margin-top: calc(5.333333 * var(--composition-unit));
  padding: calc(1.333333 * var(--composition-unit)) calc(1.066667 * var(--composition-unit));
  border: 0;
  border-radius: calc(2.666667 * var(--composition-unit));
  font: 600 clamp(10px, calc(2.8 * var(--composition-unit)), 21px)/1.22 Fraunces, Georgia, serif;
  overflow-wrap: anywhere;
}
/* Neutral fallback until the shared PM2.5 palette is applied to a fresh reading. */
.air-window .metric-panel .raw-pm-badge {
  background: #ebe4d8;
  color: #2d1701;
}
/* Vector warning symbols remain visible without emoji/font support. */
.raw-pm-badge[data-warning="true"]::before,
.pm-table tr[data-warning="true"] td:last-child::before {
  content: "";
  display: inline-block;
  flex: 0 0 1em;
  width: 1em;
  height: 1em;
  margin-right: .35em;
  vertical-align: -.08em;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2 L22 21 L2 21 Z M12 8 V13 M12 16 V17' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2 L22 21 L2 21 Z M12 8 V13 M12 16 V17' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / contain no-repeat;
}
/* Concentration units do not change the shared number/badge baselines. */
.air-window .metric-units {
  position: absolute;
  top: calc(100% + .533333 * var(--composition-unit));
  left: 0;
  width: 100%;
  color: var(--window-ink);
  font: 400 clamp(8px, calc(2.4 * var(--composition-unit)), 18px)/1 Capriola, Arial, sans-serif;
  letter-spacing: 0;
  white-space: nowrap;
}
.air-window .metric-subtitle,
.air-window .metric-method,
.air-window .method {
  font-size: calc(2.4 * var(--composition-unit));
}

/* Keep the approved centered stack at every viewport size.
   The live animation's image crop and source remain owned by window.css. */
.checker .interior,
.checker > .actions {
  display: contents;
}
.interior .character-scene,
body[data-character-pose="window-centred"] .interior .character-scene,
body[data-character-motion="animated"] .interior .character-scene {
  order: 4;
  flex: none;
  align-self: center;
  position: relative;
  z-index: 6;
  min-width: 0;
  min-height: 0;
  max-width: none;
  padding: 0;
  pointer-events: none;
}
.interior .character-scene {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  width: calc(48 * var(--composition-unit));
  aspect-ratio: 1;
  margin: calc(-17.333333 * var(--composition-unit)) auto 0;
}
.interior .character-scene img {
  width: 100%;
  max-width: none;
  height: auto;
}
body[data-character-pose="window-centred"] .interior .character-scene {
  width: 52%;
  aspect-ratio: 445 / 416;
  margin: calc(-16 * var(--composition-unit)) auto 0;
}
body[data-character-motion="animated"] .interior .character-scene {
  width: 59%;
  aspect-ratio: 641 / 568;
  margin: calc(-18 * var(--composition-unit)) auto 0;
}
.interior .shadow {
  display: none;
}
.interior .window-notes,
body[data-character-pose="window-centred"] .window-notes {
  order: 5;
  flex: none;
  align-self: center;
  width: 100%;
  margin: calc(4.8 * var(--composition-unit)) 0 0;
  padding: 0;
  font-size: calc(2.8 * var(--composition-unit));
  line-height: 1.25;
  text-align: center;
  overflow-wrap: anywhere;
}
.window-notes #shared-time {
  display: none;
}
.window-notes a,
.brand-signoff a {
  text-decoration: none;
}
#demo-exit {
  order: 6;
  align-self: center;
  margin-top: calc(2.666667 * var(--composition-unit));
  font-size: clamp(10px, calc(2.666667 * var(--composition-unit)), 20px);
}
.checker #share,
.checker #refresh {
  flex: none;
  align-self: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: max-content;
  max-width: 100%;
  min-height: calc(10.4 * var(--composition-unit));
  padding: calc(2.4 * var(--composition-unit)) calc(5.2 * var(--composition-unit));
  border: 0;
  border-radius: 999px;
  color: var(--window-ink);
  font-size: calc(2.8 * var(--composition-unit));
  line-height: 1.35;
}
.checker #share {
  order: 7;
  gap: calc(1.333333 * var(--composition-unit));
  margin-top: calc(4.266667 * var(--composition-unit));
  background: #ffb1ad;
}
.checker #share span {
  margin: 0;
}
.checker #share svg {
  width: calc(2.666667 * var(--composition-unit));
  height: calc(2.666667 * var(--composition-unit));
  padding: calc(.2 * var(--composition-unit));
  border-radius: calc(.4 * var(--composition-unit));
  background: #85a3b0;
  color: white;
}
.interior .brand-signoff,
body[data-character-pose="window-centred"] .brand-signoff {
  order: 8;
  flex: none;
  align-self: center;
  display: block;
  width: 100%;
  margin: calc(3.733333 * var(--composition-unit)) 0 0;
  padding: 0;
  font-size: calc(2.933333 * var(--composition-unit));
  line-height: 1.2;
  text-align: center;
}
.brand-signoff #brand-logo,
.brand-signoff .brand-logo {
  display: none;
}
.checker #refresh {
  order: 9;
  gap: calc(1.333333 * var(--composition-unit));
  min-width: calc(28 * var(--composition-unit));
  margin-top: calc(4.533333 * var(--composition-unit));
  background: #9aebfb;
}
.checker #refresh span {
  margin: 0;
}
.checker > .action-status {
  order: 10;
  margin-top: calc(2.666667 * var(--composition-unit));
  font-size: clamp(10px, calc(2.666667 * var(--composition-unit)), 20px);
}

/* Keep the original help dialogs reachable beside the lower disclosure. */
.more-details {
  position: relative;
}
.more-details > summary {
  min-height: calc(14.4 * var(--composition-unit));
  display: flex;
  align-items: center;
  padding-right: calc(32 * var(--composition-unit));
}
.mobile-detail-tools {
  position: absolute;
  top: 0;
  right: calc(5.333333 * var(--composition-unit));
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: calc(29.333333 * var(--composition-unit));
  min-height: calc(14.4 * var(--composition-unit));
  pointer-events: none;
}
.mobile-detail-tools button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: calc(9.6 * var(--composition-unit));
  min-width: 32px;
  height: calc(11.733333 * var(--composition-unit));
  min-height: 36px;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--window-ink);
  pointer-events: auto;
}
#mobile-metric-info {
  font-family: Georgia, serif;
  font-size: calc(3.466667 * var(--composition-unit));
}
#mobile-help {
  font-family: Capriola, Arial, sans-serif;
  font-size: calc(5.066667 * var(--composition-unit));
}

/* The supplementary information stays readable without changing the centered
   composition or forcing a wide page on a narrow phone. */
.accordion {
  margin: 0;
  border-bottom: 1px solid #e7dfce;
}
.checker + .accordion {
  margin-top: calc(6.4 * var(--composition-unit));
  border-top: 1px solid #e7dfce;
}
.accordion > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  padding: clamp(17px, calc(3.2 * var(--composition-unit)), 24px) 0;
  cursor: pointer;
  list-style: none;
  font: 600 clamp(17px, calc(4.266667 * var(--composition-unit)), 27px)/1.3 Fraunces, Georgia, serif;
}
.accordion > summary::-webkit-details-marker {
  display: none;
}
.accordion > summary::after {
  content: "+";
  flex: none;
  font: 400 26px/1 Capriola, Arial, sans-serif;
  transition: transform .2s ease;
}
.accordion[open] > summary::after {
  transform: rotate(45deg);
}
.accordion > summary:focus-visible,
.table-scroll:focus-visible {
  outline: 3px solid #00a48c;
  outline-offset: 3px;
}
.accordion .detail-content {
  min-width: 0;
  padding: 0 0 clamp(20px, calc(4.266667 * var(--composition-unit)), 32px);
}
.accordion .detail-content > p,
.accordion .detail-content li {
  font-size: clamp(12px, calc(2.933333 * var(--composition-unit)), 16px);
  line-height: 1.65;
  overflow-wrap: anywhere;
}
.accordion .detail-content > p:first-child,
.accordion .detail-content > ul:first-child {
  margin-top: 0;
}
.accordion .detail-content ul {
  padding-left: 1.5em;
}
.accordion .detail-content li + li {
  margin-top: .8em;
}
.accordion .table-scroll {
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
}
.accordion .legend-table {
  width: 100%;
  min-width: 0;
  table-layout: fixed;
  margin: 20px 0;
  border-spacing: 3px;
  font-size: clamp(11px, calc(2.933333 * var(--composition-unit)), 15px);
  line-height: 1.5;
}
.accordion .legend-table th,
.accordion .legend-table td {
  padding: clamp(7px, calc(2.133333 * var(--composition-unit)), 14px) clamp(5px, calc(1.866667 * var(--composition-unit)), 12px);
  vertical-align: top;
  overflow-wrap: anywhere;
  text-align: left;
}
.accordion .legend-table th {
  font-size: clamp(10px, calc(2.666667 * var(--composition-unit)), 14px);
  line-height: 1.45;
}
.accordion .legend-table:not(.pm-table) {
  min-width: 440px;
}
.accordion .legend-table th:first-child,
.accordion .legend-table th:nth-child(2) {
  width: 15%;
}
.accordion .legend-table th:nth-child(3) {
  width: 26%;
}
.accordion .legend-table td:first-child {
  width: auto;
  white-space: normal;
  border-radius: 0;
}
.accordion .legend-table td:last-child {
  border-radius: 0;
}
.accordion .pm-table {
  border-collapse: collapse;
  border-spacing: 0;
}
.accordion .pm-table th,
.accordion .pm-table td {
  padding-top: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid #d9d4ca;
}
.accordion .pm-table th:first-child {
  width: 44%;
}
.accordion .pm-table th:nth-child(2) {
  width: 18%;
}
.accordion .pm-table th:nth-child(3) {
  width: 38%;
}
.scene-disclaimer {
  margin: clamp(24px, calc(6.4 * var(--composition-unit)), 40px) 0;
  font-size: clamp(11px, calc(2.666667 * var(--composition-unit)), 14px);
  line-height: 1.6;
  text-align: center;
}
.cozy-section {
  margin: clamp(24px, calc(6.4 * var(--composition-unit)), 40px) 0;
  text-align: center;
}
.cozy-section h2 {
  margin: 0 0 20px;
  font-size: clamp(22px, calc(5.333333 * var(--composition-unit)), 36px);
  line-height: 1.25;
}
#cozy-player {
  width: 100%;
  min-width: 0;
}
#load-cozy {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  aspect-ratio: 16 / 9;
  padding: 24px;
  border: 1px solid #ded5c5;
  border-radius: 10px;
  background: #fff;
  color: var(--window-ink);
  font: 600 clamp(18px, calc(4.8 * var(--composition-unit)), 30px)/1.3 Fraunces, Georgia, serif;
}
#load-cozy:hover {
  background: #fff4e9;
}
#cozy-player iframe {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: 10px;
}
#cozy-player p,
#cozy-player a {
  font-size: clamp(12px, calc(2.933333 * var(--composition-unit)), 16px);
}

@media (prefers-reduced-motion: reduce) {
  .accordion > summary::after {
    transition: none;
  }
}


/* Combined AQI/PSI legend: aligned categories, readable health prose. */
#indices-details .legend-table th,
#indices-details .legend-table td:nth-child(-n + 3) {
  text-align: center;
}
#indices-details .legend-table td:nth-child(4) {
  text-align: left;
}
/* Text links remain identifiable without hovering. */
a[href], .brand-signoff a { text-decoration: underline; text-underline-offset: .16em; }
#load-cozy { position: relative; padding: 0; overflow: hidden; border: 0; background: transparent; }
#load-cozy > img { display: block; width: 100%; height: 100%; object-fit: cover; }
#load-cozy .video-play { position: absolute; inset: 50% auto auto 50%; transform: translate(-50%,-50%); display: grid; place-items: center; width: 72px; height: 52px; border-radius: 14px; color: #fff; background: #d71920; box-shadow: 0 2px 10px #0005; }
#load-cozy:hover .video-play { background: #a71319; }