@font-face {
  font-family: "Departure Mono";
  src: url("/assets/DepartureMono-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/*
  HeyWind uses four tones only:
  paper (page), surface (panels), ink (all text and rules), signal (the pollution source and its threat).
  Everything else is ink at reduced opacity. Red is never decorative: it marks the source
  and the moments when air can travel from it to you.
*/
:root {
  --paper: #dbdbd5;
  --surface: #eaeae5;
  --ink: #16181a;
  --signal: #a62f24;

  --ink-soft: rgba(22, 24, 26, 0.74);
  --ink-muted: rgba(22, 24, 26, 0.56);
  --ink-faint: rgba(22, 24, 26, 0.40);
  --rule: rgba(22, 24, 26, 0.20);
  --rule-strong: rgba(22, 24, 26, 0.42);
  --signal-tint: rgba(166, 47, 36, 0.09);
  --surface-glass: rgba(234, 234, 229, 0.94);

  --tone: var(--ink);
  --wind-color: var(--ink);
  --mono: "Departure Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  --map-height: 340px;
  --map-height: clamp(330px, 54svh, 460px);
  --gutter: 14px;
}

:root[data-tone="watch"],
:root[data-tone="alert"] {
  --tone: var(--signal);
}

:root[data-wind="toward"] {
  --wind-color: var(--signal);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--ink);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-text-size-adjust: 100%;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background: var(--paper);
  font-size: 16px;
  line-height: 1.5;
}

button,
input {
  font: inherit;
  color: inherit;
}

button,
summary,
a {
  -webkit-tap-highlight-color: transparent;
}

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

[hidden] {
  display: none !important;
}

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

.icon {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------------------------------------------------------------- shell */

.sheet {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100svh;
  padding: 0 var(--gutter) env(safe-area-inset-bottom);
  background: var(--paper);
}

/* ------------------------------------------------------------- masthead */

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0 12px;
  border-bottom: 2px solid var(--ink);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  place-items: center;
  color: var(--surface);
  background: var(--ink);
  font: 13px/1 var(--mono);
  letter-spacing: -0.08em;
}

.brand-text {
  min-width: 0;
}

.brand strong {
  display: block;
  font: 22px/1 var(--mono);
  letter-spacing: -0.05em;
}

.brand small {
  display: none;
  margin-top: 4px;
  color: var(--ink-muted);
  font-size: 12px;
}

.masthead-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.clock {
  display: none;
  margin-right: 6px;
  font-family: var(--mono);
  text-align: right;
  line-height: 1.15;
}

.clock-label {
  color: var(--ink-muted);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.clock time {
  margin-left: 8px;
  font-size: 17px;
  font-variant-numeric: tabular-nums;
}

.clock-date {
  display: block;
  color: var(--ink-muted);
  font-size: 10px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 12px;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--ink);
  border-radius: 2px;
  cursor: pointer;
  font: 12px/1 var(--mono);
  letter-spacing: 0.02em;
}

.button-solid {
  color: var(--surface);
  background: var(--ink);
}

.button:hover {
  color: var(--surface);
  background: var(--ink);
}

.button:disabled {
  cursor: progress;
  opacity: 0.45;
}

.button-text {
  display: none;
}

.icon-button {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  cursor: pointer;
}

.icon-button:hover {
  color: var(--surface);
  background: var(--ink);
}

/* ------------------------------------------------------------ statusbar */

.statusbar {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  color: var(--ink-muted);
  border-bottom: 1px solid var(--rule);
  font: 10px/1.3 var(--mono);
  letter-spacing: 0.02em;
}

.status-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  background: transparent;
  border: 1px solid var(--ink-muted);
  border-radius: 50%;
}

.status-dot.online {
  background: var(--ink);
  border-color: var(--ink);
}

.status-text {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-rule {
  height: 1px;
  flex: 1 1 auto;
  min-width: 8px;
  background: repeating-linear-gradient(90deg, var(--rule-strong) 0 4px, transparent 4px 8px);
}

.status-updated {
  flex: 0 0 auto;
  white-space: nowrap;
}

/* ------------------------------------------------------------------ main */

main {
  display: grid;
  gap: 14px;
  padding: 14px 0 20px;
}

.kicker {
  margin: 0;
  color: var(--ink-muted);
  font: 10px/1.3 var(--mono);
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h2 {
  margin: 2px 0 0;
  font: clamp(16px, 3.4vw, 21px)/1.15 var(--mono);
  letter-spacing: -0.03em;
}

/* --------------------------------------------------------------- verdict */

.verdict {
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr);
  grid-template-rows: auto auto;
  background: var(--surface);
  border: 1px solid var(--rule-strong);
}

:root[data-tone="alert"] .verdict {
  border-color: var(--signal);
  background: linear-gradient(180deg, var(--signal-tint), transparent 160px), var(--surface);
}

.verdict-rail {
  grid-row: 1 / -1;
  grid-column: 1;
  background: var(--ink);
}

.verdict-body {
  grid-column: 2;
  grid-row: 1;
}

.verdict-evidence {
  grid-column: 2;
  grid-row: 2;
}

:root[data-tone="alert"] .verdict-rail {
  background: var(--signal);
}

:root[data-tone="watch"] .verdict-rail {
  background: repeating-linear-gradient(-45deg, var(--signal) 0 3px, transparent 3px 8px);
}

:root[data-tone="likely"] .verdict-rail {
  background: repeating-linear-gradient(-45deg, var(--ink-faint) 0 2px, transparent 2px 10px);
}

:root[data-tone="unknown"] .verdict-rail {
  background: repeating-linear-gradient(180deg, var(--ink-faint) 0 4px, transparent 4px 9px);
}

.verdict-body {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  padding: 16px 16px 18px;
}

.verdict-copy {
  flex: 1 1 240px;
  min-width: 0;
}

/* Wind alignment scale. A plain left-to-right axis: 0% is wind blowing straight
   away from you, 100% is wind blowing straight from the source at you. The red
   band is the configured risky sector expressed on the same axis, so the marker's
   distance from the red band is literally how far the wind is from being a risk. */
.gauge {
  display: grid;
  flex: 1 1 250px;
  align-content: center;
  gap: 7px;
  max-width: 360px;
  margin: 0;
}

.gauge-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.gauge-label {
  color: var(--ink-muted);
  font: 9px/1.25 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.gauge-value {
  color: var(--wind-color);
  font: clamp(20px, 3vw, 26px)/1 var(--mono);
  letter-spacing: -0.045em;
}

.gauge-scale {
  position: relative;
  height: 15px;
  background: repeating-linear-gradient(90deg, var(--rule) 0 1px, transparent 1px 7px);
  border: 1px solid var(--rule-strong);
}

.gauge-zone {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: var(--gauge-threshold, 89%);
  background: var(--signal);
  border-left: 1px solid var(--signal);
  opacity: 0.32;
}

/* The favourable end of the scale. Colourless by the same rule that keeps
   LOW RISK colourless: red marks risk, and this is the absence of it. */
.gauge-zone-clear {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: var(--gauge-clear, 67%);
  background: repeating-linear-gradient(-45deg, var(--ink-faint) 0 1px, transparent 1px 6px);
  border-right: 1px solid var(--rule-strong);
}
.gauge-marker {
  position: absolute;
  top: -5px;
  bottom: -5px;
  left: var(--gauge-alignment, 0%);
  width: 2px;
  margin-left: -1px;
  background: var(--wind-color);
}

.gauge-marker::after {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  border: 4px solid transparent;
  border-top-color: var(--wind-color);
  transform: translateX(-50%);
}

.gauge-ends {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  color: var(--ink-faint);
  font: 9px/1.2 var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.gauge-band {
  margin: 0;
  color: var(--ink-soft);
  font-size: 11.5px;
  line-height: 1.4;
}

.gauge[data-state="empty"] .gauge-marker {
  display: none;
}


.verdict-title {
  display: inline-block;
  margin: 6px 0 0;
  color: var(--tone);
  font: clamp(30px, 8.4vw, 46px)/1 var(--mono);
  letter-spacing: -0.055em;
}

:root[data-tone="alert"] .verdict-title {
  padding: 6px 12px;
  margin-left: -12px;
  color: var(--surface);
  background: var(--signal);
}

:root[data-tone="unknown"] .verdict-title {
  color: var(--ink-faint);
}

.verdict-summary {
  max-width: 62ch;
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: 15px;
}

.verdict-note {
  max-width: 62ch;
  margin: 10px 0 0;
  color: var(--ink-muted);
  font: 10px/1.5 var(--mono);
  letter-spacing: 0.02em;
}

.verdict-evidence {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--rule);
  border-top: 1px solid var(--rule);
}

.verdict-evidence > div {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr);
  align-items: baseline;
  gap: 4px 12px;
  padding: 11px 16px;
  background: var(--surface);
}

dt {
  margin: 0 0 4px;
  color: var(--ink-muted);
  font: 10px/1.3 var(--mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.verdict-evidence dt {
  margin: 0;
}

dd {
  margin: 0;
  font: 14px/1.3 var(--mono);
}

/* ----------------------------------------------------------------- panel */

.panel {
  background: var(--surface);
  border: 1px solid var(--rule-strong);
}

.panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 4px 16px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--rule-strong);
}

.route {
  margin: 0;
  color: var(--ink-muted);
  font: 11px/1.35 var(--mono);
  overflow-wrap: anywhere;
}

.panel-note {
  margin: 0;
  padding: 12px 16px;
  color: var(--ink-muted);
  border-top: 1px solid var(--rule);
  font-size: 12.5px;
  line-height: 1.55;
}

/* ------------------------------------------------------------------- map */

.map-layout {
  display: grid;
}

.map-column {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.map-shell {
  position: relative;
  height: var(--map-height);
  overflow: hidden;
  background: var(--paper);
}

.map {
  position: absolute;
  inset: 0;
}

.map-unavailable {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 8px;
  padding: 24px;
  background:
    repeating-linear-gradient(45deg, transparent 0 7px, rgba(22, 24, 26, 0.04) 7px 9px),
    var(--paper);
  text-align: center;
}

.map-unavailable strong {
  font: 18px/1.15 var(--mono);
}

.map-unavailable span {
  max-width: 40ch;
  color: var(--ink-muted);
  font-size: 13px;
}

.map-legend {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: 10px 16px;
  border-top: 1px solid var(--rule);
  font: 10px/1 var(--mono);
  color: var(--ink-soft);
}

.map-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.map-legend b {
  font-weight: 400;
}

.map-legend i {
  display: inline-block;
  width: 18px;
  height: 9px;
  flex: 0 0 auto;
}

.legend-source {
  width: 9px !important;
  height: 9px !important;
  background: var(--signal);
  border-radius: 50%;
}

.legend-target {
  width: 9px !important;
  height: 9px !important;
  border: 2px solid var(--ink);
}

.legend-route {
  height: 0 !important;
  border-top: 1px dotted var(--ink);
}

.legend-wind {
  position: relative;
  height: 0 !important;
  border-top: 5px solid var(--wind-color);
}

.legend-wind::after {
  content: "";
  position: absolute;
  top: -4px;
  right: -2px;
  border: 4px solid transparent;
  border-left-color: var(--wind-color);
}

/* The plume itself: solid, and coloured by whether it is delivering. */
.legend-plume {
  background: var(--wind-color);
  opacity: 0.32;
  border: 1px solid var(--wind-color);
}

/* The nested arrival bands. */
.legend-sector {
  background: repeating-linear-gradient(45deg, var(--rule-strong) 0 1px, transparent 1px 5px);
  border: 1px dashed var(--rule-strong);
}

/* ------------------------------------------------------------ map chrome */

.maplibregl-ctrl-group,
.maplibregl-ctrl-attrib.maplibregl-compact {
  color: var(--ink) !important;
  background: var(--surface-glass) !important;
  border: 1px solid var(--rule-strong) !important;
  border-radius: 2px !important;
  box-shadow: none !important;
}

.maplibregl-ctrl-group button + button {
  border-top-color: var(--rule) !important;
}

.maplibregl-ctrl button .maplibregl-ctrl-icon {
  filter: grayscale(1) contrast(1.4);
}

.maplibregl-ctrl-attrib a,
.maplibregl-ctrl-attrib {
  color: var(--ink-muted) !important;
  font-size: 10px;
}

.maplibregl-canvas-container.maplibregl-interactive {
  cursor: grab;
}

.reset-map-control {
  width: auto !important;
  min-width: 74px;
  padding: 0 9px !important;
  color: var(--ink) !important;
  font: 9px/1 var(--mono) !important;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ---------------------------------------------------------- map markers */

.marker {
  display: block;
  line-height: 0;
}

.marker-source {
  position: relative;
  width: 15px;
  height: 15px;
  background: var(--signal);
  border: 2px solid var(--surface);
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(166, 47, 36, 0.65);
}

.marker-source::after {
  content: "";
  position: absolute;
  inset: -3px;
  border: 2px solid var(--signal);
  border-radius: 50%;
  animation: source-pulse 2.6s cubic-bezier(0.2, 0.6, 0.3, 1) infinite;
}

@keyframes source-pulse {
  0% { transform: scale(0.75); opacity: 0.85; }
  70% { transform: scale(2.6); opacity: 0; }
  100% { transform: scale(2.6); opacity: 0; }
}

.marker-target {
  width: 14px;
  height: 14px;
  background: var(--surface);
  border: 3px solid var(--ink);
}

.marker-label {
  max-width: min(150px, 42vw);
  padding: 3px 6px;
  overflow: hidden;
  color: var(--ink);
  background: var(--surface-glass);
  border: 1px solid var(--rule-strong);
  font: 10px/1.3 var(--mono);
  pointer-events: none;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.marker-label-source {
  color: var(--signal);
  border-color: var(--signal);
}

/* ------------------------------------------------------------------ rail */

.rail {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border-top: 1px solid var(--rule-strong);
}

.stat {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: 12px 14px;
  background: var(--surface);
}

.stat-label {
  margin: 0 0 6px;
  color: var(--ink-muted);
  font: 10px/1.2 var(--mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.stat-value {
  margin: 0;
  overflow-wrap: anywhere;
  font: clamp(18px, 4.6vw, 23px)/1.1 var(--mono);
  letter-spacing: -0.04em;
}

.stat-note {
  margin: 6px 0 0;
  color: var(--ink-muted);
  font-size: 11.5px;
  line-height: 1.4;
}

.stat-signal .stat-value {
  color: var(--signal);
}

/* ------------------------------------------------------------ disclosure */

.disclosure > summary {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 2px 12px;
  min-height: 54px;
  padding: 10px 44px 10px 16px;
  cursor: pointer;
  list-style: none;
  font: 15px/1.25 var(--mono);
  letter-spacing: -0.02em;
}

.disclosure > summary::-webkit-details-marker {
  display: none;
}

.disclosure > summary::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 16px;
  width: 11px;
  height: 11px;
  transform: translateY(-50%);
  background:
    linear-gradient(var(--ink) 0 0) center/100% 1px no-repeat,
    linear-gradient(var(--ink) 0 0) center/1px 100% no-repeat;
}

.disclosure[open] > summary::after {
  background: linear-gradient(var(--ink) 0 0) center/100% 1px no-repeat;
}

.disclosure > summary small {
  color: var(--ink-muted);
  font: 11px/1.3 var(--sans);
}

.disclosure-body {
  padding: 16px;
  border-top: 1px solid var(--rule-strong);
}

.disclosure-body-flush {
  padding: 0;
}

.steps {
  display: grid;
  gap: 1px;
  margin: 0 0 16px;
  padding: 0;
  background: var(--rule);
  border: 1px solid var(--rule);
  counter-reset: step;
  list-style: none;
}

.steps li {
  padding: 14px 14px 14px 44px;
  background: var(--surface);
  counter-increment: step;
  position: relative;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  top: 14px;
  left: 14px;
  color: var(--ink-faint);
  font: 18px/1 var(--mono);
}

.steps strong,
.steps span {
  display: block;
  font-size: 13.5px;
}

.steps span {
  margin-top: 5px;
  color: var(--ink-muted);
}

.steps b {
  color: var(--ink);
  font-family: var(--mono);
  font-weight: 400;
}

.readout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.readout > div {
  padding: 12px 14px;
  background: var(--surface);
}

.mono-note {
  margin: 16px 0 0;
  font: 12.5px/1.55 var(--mono);
}

.fine-print {
  margin: 12px 0 0;
  color: var(--ink-muted);
  font-size: 12.5px;
  line-height: 1.55;
}

.caveat {
  margin: 14px 0 0;
  padding: 11px 13px;
  background: repeating-linear-gradient(135deg, rgba(22, 24, 26, 0.05) 0 2px, transparent 2px 7px);
  border-left: 3px solid var(--ink);
  font-size: 13px;
  line-height: 1.5;
}

/* ---------------------------------------------------------------- table */

.table-scroll {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th,
td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--rule);
  text-align: left;
}

th {
  color: var(--ink-muted);
  font: 10px/1.3 var(--mono);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

tbody tr:last-child td {
  border-bottom: 0;
}

.vote-yes {
  color: var(--signal);
  font-family: var(--mono);
}

.vote-no {
  color: var(--ink-faint);
  font-family: var(--mono);
}

.provider-errors {
  padding: 11px 14px;
  color: var(--ink-muted);
  border-top: 1px dashed var(--rule-strong);
  font: 10px/1.5 var(--mono);
}

/* --------------------------------------------------------------- footer */

footer {
  display: grid;
  gap: 4px;
  margin-top: auto;
  padding: 12px 0 16px;
  color: var(--ink-faint);
  border-top: 1px solid var(--rule-strong);
  font: 9.5px/1.4 var(--mono);
}

/* --------------------------------------------------------------- dialog */

.dialog {
  width: 100%;
  max-width: 100%;
  height: 100%;
  max-height: 100%;
  padding: 0;
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  border: 0;
  border-radius: 0;
}

.dialog[open] {
  display: flex;
  flex-direction: column;
}

.dialog::backdrop {
  background: rgba(22, 24, 26, 0.7);
}

.dialog form {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  min-height: 0;
}

.dialog-head {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 62px;
  padding: 11px 14px;
  border-bottom: 2px solid var(--ink);
}

.dialog-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: 14px;
  -webkit-overflow-scrolling: touch;
}

.place-fields {
  display: grid;
  gap: 10px;
}

.place-arrow {
  display: grid;
  place-items: center;
  color: var(--ink-faint);
}

.place-arrow svg {
  width: 40px;
  height: 12px;
  transform: rotate(90deg);
}

fieldset {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 11px;
  min-width: 0;
  margin: 0;
  padding: 14px;
  background: var(--paper);
  border: 1px solid var(--rule-strong);
}

legend {
  padding: 0 6px;
  font: 12px/1 var(--mono);
  letter-spacing: 0.04em;
}

.field-source {
  border-color: var(--signal);
}

.field-source legend {
  color: var(--signal);
}

.field-help {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--ink-muted);
  font-size: 12.5px;
  line-height: 1.5;
}

label {
  display: grid;
  gap: 5px;
  align-content: start;
  min-width: 0;
  color: var(--ink-muted);
  font: 10px/1.3 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

label.wide {
  grid-column: 1 / -1;
}

input {
  width: 100%;
  min-width: 0;
  height: 42px;
  padding: 8px 10px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  font: 14px/1 var(--mono);
  caret-color: var(--signal);
}

input:focus {
  border-color: var(--ink);
}

.advanced {
  margin-top: 12px;
  background: var(--paper);
  border: 1px solid var(--rule-strong);
}

.advanced > summary {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 46px;
  padding: 8px 40px 8px 14px;
  cursor: pointer;
  list-style: none;
  font: 13px/1.2 var(--mono);
}

.advanced > summary::-webkit-details-marker {
  display: none;
}

.advanced > summary small {
  color: var(--ink-muted);
  font: 10px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.advanced > summary::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 14px;
  width: 10px;
  height: 10px;
  transform: translateY(-50%);
  background:
    linear-gradient(var(--ink) 0 0) center/100% 1px no-repeat,
    linear-gradient(var(--ink) 0 0) center/1px 100% no-repeat;
}

.advanced[open] > summary::after {
  background: linear-gradient(var(--ink) 0 0) center/100% 1px no-repeat;
}

.advanced-body {
  padding: 0 14px 14px;
}

.threshold-grid {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.threshold-grid label small {
  color: var(--ink-faint);
  font: 11px/1.4 var(--sans);
  letter-spacing: 0;
  text-transform: none;
}

.dialog-foot {
  flex: 0 0 auto;
  padding: 12px 14px calc(12px + env(safe-area-inset-bottom));
  background: var(--surface);
  border-top: 1px solid var(--rule-strong);
}

.form-message {
  margin: 0 0 10px;
  min-height: 16px;
  color: var(--ink-muted);
  font: 11px/1.4 var(--mono);
}

.dialog-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.dialog-actions .button {
  min-height: 44px;
}

.dialog .button-text {
  display: inline;
}

/* ---------------------------------------------------------------- toast */

.toast {
  position: fixed;
  z-index: 100;
  right: var(--gutter);
  bottom: calc(var(--gutter) + env(safe-area-inset-bottom));
  left: var(--gutter);
  padding: 12px 14px;
  color: var(--surface);
  background: var(--ink);
  font: 11px/1.45 var(--mono);
}

/* ============================================================ ≥ 560 px */

@media (min-width: 560px) {
  :root {
    --gutter: 20px;
  }

  .button-text {
    display: inline;
  }

  .brand small {
    display: block;
  }

  .brand strong {
    font-size: 25px;
  }

  .disclosure > summary {
    flex-wrap: nowrap;
    align-items: center;
    justify-content: space-between;
  }

  .disclosure > summary small {
    text-align: right;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
    font-size: 15px;
  }

  .verdict-body {
    padding: 22px 24px 24px;
  }

  .verdict-evidence {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .verdict-evidence > div {
    grid-template-columns: minmax(0, 1fr);
    padding: 13px 18px;
  }

  .verdict-evidence dt {
    margin-bottom: 4px;
  }

  .verdict-summary {
    font-size: 16px;
  }

  .rail {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .readout {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .place-fields {
    grid-template-columns: minmax(0, 1fr) 44px minmax(0, 1fr);
    align-items: center;
    gap: 12px;
  }

  .place-arrow svg {
    transform: none;
  }

  .threshold-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dialog-actions {
    display: flex;
    justify-content: flex-end;
  }

  .dialog-actions .button {
    min-width: 140px;
  }

  .toast {
    left: auto;
    max-width: 420px;
  }

  footer {
    grid-template-columns: repeat(2, auto);
    justify-content: space-between;
    gap: 4px 18px;
  }
}

/* ============================================================ ≥ 900 px */

@media (min-width: 900px) {
  :root {
    --gutter: 28px;
    --map-height: clamp(400px, 56svh, 560px);
  }

  body {
    background: var(--ink);
    padding: 18px;
  }

  .sheet {
    width: min(1500px, 100%);
    min-height: calc(100vh - 36px);
    margin: 0 auto;
    padding: 0 var(--gutter) 0;
    border: 1px solid var(--rule-strong);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  }

  .masthead {
    padding: 18px 0 14px;
  }

  .clock {
    display: block;
  }

  .statusbar {
    min-height: 36px;
    font-size: 11px;
  }

  main {
    gap: 18px;
    padding: 18px 0 24px;
  }

  .verdict {
    grid-template-columns: 10px minmax(0, 1fr);
  }

  .panel-head {
    min-height: 62px;
    padding: 12px 20px;
    flex-wrap: nowrap;
    align-items: center;
  }

  .route {
    text-align: right;
    white-space: nowrap;
  }

  .map-legend {
    padding: 11px 20px;
  }

  .panel-note,
  .disclosure-body {
    padding: 14px 20px;
  }

  .disclosure-body-flush {
    padding: 0;
  }

  .disclosure > summary {
    min-height: 60px;
    padding: 12px 52px 12px 20px;
    font-size: 16px;
  }

  .disclosure > summary::after {
    right: 20px;
  }

  .dialog {
    width: min(940px, calc(100% - 40px));
    height: fit-content;
    max-height: calc(100vh - 60px);
    margin: auto;
    border: 1px solid var(--ink);
    box-shadow: 12px 14px 0 rgba(0, 0, 0, 0.3);
  }

  .dialog-head {
    padding: 14px 20px;
  }

  .dialog-scroll {
    padding: 20px;
  }

  .dialog-foot {
    padding: 14px 20px;
  }

  .threshold-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  footer {
    grid-template-columns: repeat(4, auto);
    padding: 14px 0 18px;
  }
}

/* =========================================================== ≥ 1180 px */

@media (min-width: 1180px) {
  :root {
    --map-height: clamp(440px, 62svh, 660px);
  }

  .verdict {
    grid-template-columns: 10px minmax(0, 1fr) minmax(280px, 22%);
    grid-template-rows: auto;
  }

  .verdict-evidence {
    grid-column: 3;
    grid-row: 1;
    grid-template-columns: minmax(0, 1fr);
    grid-auto-rows: minmax(0, 1fr);
    border-top: 0;
    border-left: 1px solid var(--rule);
  }

  .verdict-evidence > div {
    align-content: center;
    padding: 16px 20px;
  }

  .verdict-body {
    padding: 26px 28px 28px;
  }

  .verdict-title {
    font-size: clamp(38px, 3.6vw, 52px);
  }

  .verdict-summary {
    font-size: 17px;
  }

  .map-layout {
    grid-template-columns: minmax(0, 1fr) 268px;
  }

  .rail {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: repeat(6, minmax(0, 1fr));
    border-top: 0;
    border-left: 1px solid var(--rule-strong);
  }

  .stat {
    padding: 12px 18px;
  }
}

/* ------------------------------------------------------------- motion */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .marker-source::after {
    display: none;
  }
}

/* ------------------------------------ stacked provider table on phones */

@media (max-width: 700px) {
  .provider-table thead {
    display: none;
  }

  .provider-table,
  .provider-table tbody,
  .provider-table tr,
  .provider-table td {
    display: block;
    width: 100%;
  }

  .provider-table tr {
    padding: 10px 14px;
    border-bottom: 1px solid var(--rule);
  }

  .provider-table tr:last-child {
    border-bottom: 0;
  }

  .provider-table td {
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 10px;
    padding: 3px 0;
    border: 0;
  }

  .provider-table td::before {
    content: attr(data-label);
    color: var(--ink-muted);
    font: 9px/1.5 var(--mono);
    letter-spacing: 0.07em;
    text-transform: uppercase;
  }

  .provider-table td.cell-wide {
    grid-template-columns: minmax(0, 1fr);
  }

  .provider-table td.cell-wide::before {
    display: none;
  }
}

/* ------------------------------------------------------------ sign-in gate */

.login-body {
  display: grid;
  place-items: center;
  min-height: 100svh;
  padding: var(--gutter);
  background: var(--paper);
  color: var(--ink);
}

.login-card {
  width: min(360px, 100%);
  padding: 26px 24px 24px;
  background: var(--surface);
  border: 1px solid var(--rule-strong);
}

.login-title {
  margin: 4px 0 10px;
  font: clamp(28px, 6vw, 38px)/1 var(--mono);
  letter-spacing: -0.04em;
}

.login-note {
  margin: 0 0 18px;
  color: var(--ink-muted);
  font-size: 13px;
  line-height: 1.5;
}

/* The one place red is not about wind: a rejected password. */
.login-error {
  margin: 0 0 16px;
  padding: 9px 11px;
  border-left: 3px solid var(--signal);
  background: color-mix(in srgb, var(--signal) 7%, transparent);
  color: var(--signal);
  font-size: 13px;
}

.login-form {
  display: grid;
  gap: 8px;
}

.login-form label {
  color: var(--ink-muted);
  font: 9px/1.25 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.login-form input {
  padding: 10px 11px;
  font: 15px/1.2 var(--mono);
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule-strong);
}

.login-form input:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 1px;
}

.login-form button {
  margin-top: 6px;
  padding: 11px;
  font: 13px/1 var(--mono);
  letter-spacing: 0.04em;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--ink);
  cursor: pointer;
}

.login-form button:hover {
  background: color-mix(in srgb, var(--ink) 88%, var(--paper));
}