:root {
  color-scheme: dark;
  --bg: #121211; --card: #1a1a19; --border: #2e2e2b; --grid: #262624;
  --ink: #fff; --ink2: #c3c2b7; --muted: #8f8e86;
  --accent: #8ab4f8; --accent-soft: #1c2a3d; --on-accent: #0b1020; --warm: #d95926; --band: #1c5cab;
  --good: #3cbf8a; --mid: #e0a93a; --bad: #e8664d;
  --font-title: Fraunces, Georgia, serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 Inter, system-ui, sans-serif; }
main { max-width: 880px; margin: 0 auto; padding: 40px 16px 80px; }
h1 { font-family: var(--font-title); font-weight: 600; font-size: clamp(28px, 5vw, 40px); line-height: 1.15; margin: 4px 0 12px; letter-spacing: -0.02em; }
h2 { font-size: 22px; margin: 48px 0 8px; }
h3 { font-size: 15px; margin: 0 0 4px; }
a { color: var(--accent); }
.eyebrow { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .08em; font-weight: 600; }
.eyebrow a { color: inherit; text-decoration: none; }
.eyebrow a:hover { color: var(--ink); }
.lede { color: var(--ink2); font-size: 18px; max-width: 640px; }
.muted { color: var(--muted); } .small { font-size: 13px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 20px; margin-top: 16px; }
.hint { color: var(--muted); font-size: 13px; margin-top: 8px; }
.error { color: var(--bad); font-size: 14px; }
.route-check { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-top: 16px; padding: 12px 16px; border: 1px solid var(--mid); border-radius: 12px; background: var(--card); }
.route-check p { margin: 0; flex: 1 1 260px; font-size: 15px; color: var(--ink2); }
.route-check b { color: var(--ink); }

.search { display: flex; gap: 8px; margin-top: 24px; flex-wrap: wrap; }
.search input { font: inherit; font-size: 17px; padding: 14px 16px; border-radius: 12px; border: 1px solid var(--border); background: var(--card); color: var(--ink); min-width: 0; }
.search input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
#flight { flex: 1 1 240px; text-transform: uppercase; }
#flight::placeholder { text-transform: none; }
#date { flex: 0 0 auto; }
.btn { display: inline-block; font: inherit; font-size: 14px; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--card); color: var(--ink); cursor: pointer; text-decoration: none; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); font-size: 16px; font-weight: 600; padding: 14px 20px; border-radius: 12px; }
.btn.primary:disabled { opacity: .6; cursor: wait; }
.btn.active { background: var(--accent-soft); border-color: var(--accent); }
.examples { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; margin-top: 10px; font-size: 13px; color: var(--muted); }
.examples .btn { font-size: 13px; padding: 4px 10px; border-radius: 20px; font-variant-numeric: tabular-nums; }
.legs { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 16px; }
.legs:empty { display: none; }

.route { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; }
.route .code { font-size: clamp(30px, 6vw, 44px); font-weight: 700; line-height: 1; letter-spacing: -0.02em; }
.route .city { font-size: 13px; color: var(--ink2); }
.route .right { text-align: right; }
.wxline { font-size: 15px; margin-top: 4px; color: var(--ink); font-variant-numeric: tabular-nums; }
.wxline:empty { display: none; }
.route .mid { flex: 1; text-align: center; font-size: 13px; color: var(--muted); padding-bottom: 4px; }
.route .mid b { color: var(--ink); font-weight: 600; }
.route .path { border-top: 2px dashed var(--border); margin: 8px 0 6px; }

.big-pct { font-size: clamp(44px, 9vw, 64px); font-weight: 700; line-height: 1; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; margin-top: 16px; }
.verdict { font-size: 19px; border-left: 4px solid; padding: 4px 0 4px 14px; margin: 16px 0 8px; }
.meter { position: relative; height: 10px; border-radius: 5px; background: var(--grid); margin: 18px 0 6px; }
.meter i { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 5px; transition: width .8s ease; }
.meter .avg { position: absolute; top: -5px; bottom: -5px; border-left: 2px solid var(--ink2); }
.meter-scale { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); }

#map { height: 340px; border-radius: 10px; margin-top: 16px; background: var(--grid); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-top: 16px; }
.stat { background: var(--bg); border-radius: 10px; padding: 12px 14px; }
.stat .v { font-size: 22px; font-weight: 600; font-variant-numeric: tabular-nums; }
.stat .l { font-size: 13px; color: var(--ink2); }
.stat .s { font-size: 12px; color: var(--muted); }

.drivers { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.drv { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 12px; align-items: center; font-size: 14px; }
.drv small { display: block; color: var(--muted); font-size: 12px; }
.bar { position: relative; height: 10px; }
.bar::before { content: ""; position: absolute; left: 50%; top: -4px; bottom: -4px; border-left: 1px solid var(--border); }
.bar i { position: absolute; top: 0; height: 100%; border-radius: 3px; }
.bar i.up { left: 50%; background: var(--warm); }
.bar i.down { right: 50%; background: var(--accent); }
.legend { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); margin-top: 10px; }

.weather { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; margin-top: 12px; }
.wx { background: var(--bg); border-radius: 10px; padding: 12px 14px; }
.wx .where { font-size: 13px; color: var(--ink2); }
.wx .t { font-size: 22px; font-weight: 600; }
.wx ul { list-style: none; padding: 0; margin: 6px 0 0; font-size: 13px; color: var(--ink2); }

details summary { cursor: pointer; }
ul.list { padding-left: 20px; color: var(--ink2); } ul.list li { margin: 4px 0; }
table { width: 100%; border-collapse: collapse; font-size: 14px; font-variant-numeric: tabular-nums; }
th, td { text-align: right; padding: 7px 8px; border-bottom: 1px solid var(--grid); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; white-space: normal; }
th { color: var(--muted); font-weight: 500; font-size: 12px; }
tr.hl td { font-weight: 600; }
.tablewrap { overflow-x: auto; }
.shap { width: 100%; border-radius: 10px; margin-top: 12px; background: #fff; }
.note { border-left: 3px solid var(--accent); padding: 2px 0 2px 14px; color: var(--ink2); }
footer { margin-top: 64px; border-top: 1px solid var(--border); padding-top: 16px; color: var(--muted); font-size: 13px; }

.leaflet-container { font: 13px Inter, sans-serif; }
.ap-label { background: var(--card); color: var(--ink); border: 1px solid var(--border); border-radius: 6px; font-weight: 600; padding: 1px 7px; box-shadow: none; }
.ap-label::before { display: none; }

.modes { display: flex; gap: 6px; margin-top: 24px; }
.modes .btn { border-radius: 20px; font-size: 13px; padding: 6px 14px; }
.modes + .search { margin-top: 12px; }
.search[hidden], .examples[hidden] { display: none; }
.search select { font: inherit; font-size: 17px; padding: 14px 12px; border-radius: 12px; border: 1px solid var(--border); background: var(--card); color: var(--ink); flex: 1 1 180px; }
#from, #to { flex: 1 1 160px; }
.matches { margin-top: 16px; }
.match { display: grid; grid-template-columns: auto 1fr auto; gap: 16px; align-items: center; width: 100%; text-align: left; font: inherit; padding: 12px 14px; margin-top: 8px; border-radius: 10px; border: 1px solid var(--border); background: var(--card); color: var(--ink); cursor: pointer; font-variant-numeric: tabular-nums; }
.match:hover, .match.active { border-color: var(--accent); background: var(--accent-soft); }
.match .fn { font-weight: 600; }
.match .meta { color: var(--ink2); font-size: 14px; }
.match .pr { font-weight: 600; }
.stats .stat { background: var(--card); border: 1px solid var(--border); }

.stale-banner { background: #fff4e5; color: #663c00; border-bottom: 1px solid #f0c36d; padding: 6px 12px; font-size: 13px; text-align: center; }

.route-check.faa { margin-top: 16px; border-color: var(--bad); }
.route-check.faa p { flex: 1 1 100%; }
.route-check.faa small { display: block; color: var(--muted); font-size: 12px; margin-top: 4px; }

.route-check[hidden], .hint[hidden] { display: none; }

/* Field Documents theme: airport departures board (split-flap). */
:root {
  --bg: #0c0c0b; --card: #151513; --border: #2b2a24; --grid: #22211c;
  --ink: #f7f2e0; --ink2: #c9c3ad; --muted: #8d8770;
  --accent: #6cb4ff; --accent-soft: #0f2236; --on-accent: #06121f; --warm: #f08a24;
  --flap: #1d1d1a; --mono: "Chivo Mono", ui-monospace, monospace;
}
body { font-family: "IBM Plex Sans", system-ui, sans-serif; }
h1 { font-family: var(--mono); font-weight: 700; text-transform: uppercase; letter-spacing: .02em; color: var(--accent); }
h2, h3 { font-family: var(--mono); text-transform: uppercase; letter-spacing: .06em; }
h3 { font-size: 13px; color: var(--ink2); }
.eyebrow { font-family: var(--mono); letter-spacing: .22em; color: var(--muted); }
.card, .search input, .search select, .match, .route-check, .stat, .wx, #map, .shap { border-radius: 2px; }
.btn, .btn.primary, .modes .btn, .examples .btn { border-radius: 2px; font-family: var(--mono); text-transform: uppercase; letter-spacing: .06em; }
.btn.primary { background: var(--accent); color: var(--on-accent); }
#flight { font-family: var(--mono); letter-spacing: .12em; }
/* Flap tiles: a dark plate split by a hairline, like a Solari board character. */
.route .code, .big-pct {
  display: inline-block; font-family: var(--mono); color: var(--ink); padding: 6px 10px 4px;
  background: linear-gradient(#000 0 0) 0 50% / 100% 1px no-repeat, linear-gradient(var(--flap) 50%, #181815 50%);
  border-radius: 3px; box-shadow: inset 0 -2px 0 #000;
}
.big-pct { color: var(--accent); letter-spacing: .04em; }
.route .path { border-top-color: var(--accent); border-top-style: dotted; }
.meter, .meter i { border-radius: 0; }
th { font-family: var(--mono); text-transform: uppercase; letter-spacing: .08em; }
footer { font-family: "IBM Plex Sans", system-ui, sans-serif; }
.byline { font-family: var(--mono); text-transform: uppercase; letter-spacing: .14em; color: var(--accent); }
.leaflet-container { font-family: "IBM Plex Sans", sans-serif; }
.ap-label { font-family: var(--mono); border-radius: 2px; }
.leaflet-control-attribution { font-size: 9px; line-height: 1.3; opacity: .75; }