@font-face {
  font-family: Inter;
  src: url("../fonts/inter-latin-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: Inter;
  src: url("../fonts/inter-latin-500.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: Inter;
  src: url("../fonts/inter-latin-600.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;
  --paper: #f7f6f3;
  --ink: #1a1a1a;
  --muted: #5e5c57;
  --line: #e0ddd6;
  --bg: #e7e5e0;
  --live: #b42318;
  font-family: Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
}

body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  grid-template-rows: auto minmax(0, 1fr) auto;
}

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

header {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 54px;
  padding: 8px 16px;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand h1 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  line-height: 1.1;
}
.sub { margin: 2px 0 0; color: var(--muted); font-size: 12px; letter-spacing: 0.01em; }

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--live);
  flex: none;
}

@media (prefers-reduced-motion: no-preference) {
  .live-dot { animation: pulse 2.6s ease-out infinite; }
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(180, 35, 24, 0.4); }
  100% { box-shadow: 0 0 0 8px rgba(180, 35, 24, 0); }
}

#clock {
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.02em;
}

.stats {
  margin: 0 0 0 auto;
  font-size: 13px;
  color: var(--muted);
  text-align: right;
}

#stage {
  position: relative;
  min-width: 0;
  min-height: 0;
  background: #c5d6e4;
  overflow: hidden;
}

#view {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

#labels {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 2;
}

.map-tag {
  position: absolute;
  left: 0;
  top: 0;
  display: none;
  padding: 1px 5px;
  border: 1px solid rgba(26, 26, 26, 0.14);
  background: rgba(247, 246, 243, 0.9);
  color: var(--ink);
  font-size: 11px;
  line-height: 1.35;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.map-tag-concourse {
  font-weight: 600;
  letter-spacing: 0.14em;
  font-size: 12px;
  background: transparent;
  border: 0;
  padding: 0;
}

.map-tag-runway { font-weight: 600; letter-spacing: 0.08em; }
.map-tag-compass { letter-spacing: 0.16em; color: var(--muted); background: transparent; border: 0; }

.map-tag-aircraft {
  pointer-events: auto;
  cursor: pointer;
  box-shadow: inset 2px 0 0 var(--state-overflight);
}

.map-tag-aircraft[data-state="parked"] { box-shadow: inset 2px 0 0 var(--state-parked); }
.map-tag-aircraft[data-state="taxi"] { box-shadow: inset 2px 0 0 var(--state-taxi); }
.map-tag-aircraft[data-state="takeoff"],
.map-tag-aircraft[data-state="departure"] { box-shadow: inset 2px 0 0 var(--state-departure); }
.map-tag-aircraft[data-state="arrival"] { box-shadow: inset 2px 0 0 var(--state-arrival); }

#presets, #traffic-toggle, .panel, #banner, #fallback {
  font-size: 12px;
}

#presets {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 3;
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  max-width: calc(100% - 24px);
  overflow-x: auto;
}

#presets button, #traffic-toggle, #detail-close {
  background: var(--paper);
  border: 1px solid #d5d1c9;
  padding: 6px 9px;
  cursor: pointer;
}

#presets button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

#traffic-toggle {
  display: none;
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 4;
}

#banner, #fallback {
  position: absolute;
  z-index: 5;
  background: var(--paper);
  border: 1px solid var(--line);
}

#banner {
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 12px;
  max-width: calc(100% - 24px);
}

#fallback {
  inset: 16px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 24px;
  font-size: 14px;
}

#fallback[hidden], #banner[hidden], #detail[hidden] { display: none; }

#detail {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 4;
  width: min(280px, calc(100% - 24px));
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 14px 14px 12px;
}

#detail-close {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  padding: 0;
}

#detail .kicker {
  margin: 0 28px 2px 0;
  color: var(--muted);
  font-size: 12px;
}

#detail h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

#detail-state {
  margin: 6px 0 10px;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

#detail-state[data-state="arrival"] { color: var(--state-arrival); }
#detail-state[data-state="departure"],
#detail-state[data-state="takeoff"] { color: var(--state-departure); }
#detail-state[data-state="taxi"] { color: var(--state-taxi); }
#detail-state[data-state="parked"] { color: var(--muted); }

#detail dl {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 4px 8px;
  margin: 0;
  font-size: 13px;
}

#detail dt { color: var(--muted); }
#detail dd { margin: 0; font-variant-numeric: tabular-nums; }

#list {
  grid-column: 2;
  grid-row: 2;
  overflow: auto;
  background: var(--paper);
  border-left: 1px solid var(--line);
  min-height: 0;
}

.group { padding: 10px 0 4px; }
.group-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0 14px 6px;
}

.group-head h2 {
  margin: 0;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.group-head span { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }

.row {
  width: 100%;
  display: flex;
  gap: 8px;
  align-items: center;
  text-align: left;
  background: transparent;
  border: 0;
  border-top: 1px solid transparent;
  padding: 7px 14px;
  cursor: pointer;
}

.row:hover, .row.is-selected { background: #efeee9; }
.swatch { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.row-text { display: flex; flex-direction: column; min-width: 0; }
.row-text strong { font-weight: 600; font-size: 13px; }
.row-text small { color: var(--muted); font-size: 12px; }
.empty { margin: 0; padding: 0 14px 8px; color: var(--muted); font-size: 12px; }

footer {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 12px 18px;
  flex-wrap: wrap;
  padding: 7px 16px;
  background: var(--paper);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
  line-height: 1.4;
}

footer a { color: inherit; }
.noscript { padding: 16px; }

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

@media (max-width: 800px) {
  body { grid-template-columns: minmax(0, 1fr); }
  header { flex-wrap: wrap; gap: 4px 12px; padding: 8px 12px; }
  .stats { margin-left: 0; width: 100%; text-align: left; font-size: 12px; }
  #list {
    position: fixed;
    left: 8px;
    right: 8px;
    bottom: 36px;
    z-index: 6;
    max-height: 46vh;
    border: 1px solid var(--line);
    transform: translateY(120%);
    transition: transform 160ms ease;
  }
  #list.open { transform: none; }
  #traffic-toggle { display: block; }
  #detail { top: auto; bottom: 52px; left: 8px; right: 8px; width: auto; }
  #presets { bottom: 8px; }
  footer { padding: 6px 12px; }
}

@media (prefers-reduced-motion: reduce) {
  #list { transition: none; }
}