/* ###########################################
   # Theme tokens                            #
   ########################################### */
:root{
  color-scheme: light;
  --sea: #e3e9ee;
  --land: #fbfbf9;
  --land-other: #efeeea;
  --land-stroke: #b3b1a8;
  --border: #d3d1c9;
  --label-halo: #fbfbf9;
  --surface: #fcfcfb;
  --surface-glass: rgba(252, 252, 251, .95);
  --chip: rgba(11, 11, 11, .06);
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --ink-3: #898781;
  --hairline: rgba(11, 11, 11, .10);
  --marker-edge: rgba(11, 11, 11, .22);
  --shadow: 0 1px 2px rgba(0, 0, 0, .05), 0 8px 28px rgba(0, 0, 0, .08);
  --shadow-lg: 0 2px 6px rgba(0, 0, 0, .06), 0 18px 48px rgba(0, 0, 0, .14);
  --focus: #2a78d6;
  --backdrop: rgba(0, 0, 0, .32);

  /* status colours: blue/amber/red stay distinguishable under protanopia and deuteranopia */
  --on-time: #2a78d6;
  --delayed: #eda100;
  --cancelled: #d03b3b;
  --upcoming: #c3c2b7;
  --no-data: #898781;

  --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
/* data-theme is always set (to the resolved light/dark theme) by the inline script in index.html */
:root[data-theme="dark"]{
  color-scheme: dark;
  --sea: #0e1114;
  --land: #2b2b29;
  --land-other: #1c1c1b;
  --land-stroke: #53524d;
  --border: #34342f;
  --label-halo: #1c1c1b;
  --surface: #1a1a19;
  --surface-glass: rgba(26, 26, 25, .95);
  --chip: rgba(255, 255, 255, .08);
  --ink: #ffffff;
  --ink-2: #c3c2b7;
  --ink-3: #898781;
  --hairline: rgba(255, 255, 255, .10);
  --marker-edge: rgba(0, 0, 0, .6);
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 28px rgba(0, 0, 0, .35);
  --shadow-lg: 0 2px 6px rgba(0, 0, 0, .3), 0 18px 48px rgba(0, 0, 0, .5);
  --focus: #3987e5;
  --backdrop: rgba(0, 0, 0, .5);

  --on-time: #3987e5;
  --delayed: #c98500;
  --cancelled: #d03b3b;
  --upcoming: #62615c;
}

/* ###########################################
   # Base & layout                           #
   ########################################### */
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font:14px/1.4 var(--font);color:var(--ink);background:var(--sea);overflow:hidden;-webkit-font-smoothing:antialiased}
[hidden]{display:none!important}
button,select{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}

.app{height:100dvh}
#map-wrap{position:fixed;inset:0}
#land,#map{position:absolute;inset:0;display:block;width:100%;height:100%}

.s-onTime{--c:var(--on-time)}
.s-delayed{--c:var(--delayed)}
.s-cancelled{--c:var(--cancelled)}
.s-upcoming{--c:var(--upcoming)}
.s-waitShort{--c:var(--on-time)}
.s-waitMedium{--c:var(--delayed)}
.s-waitLong{--c:var(--cancelled)}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--c);flex:none}

/* ###########################################
   # Control panel                           #
   ########################################### */
.panel{position:absolute;top:16px;left:16px;z-index:5;width:372px;max-height:calc(100% - 32px);overflow:auto;
  display:flex;flex-direction:column;gap:16px;padding:18px 18px 14px;
  background:var(--surface-glass);
  border:1px solid var(--hairline);border-radius:var(--radius);box-shadow:var(--shadow)}
.panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.panel-actions{display:flex;align-items:center;gap:4px;flex:none}
.panel-head .panel-hide{display:none;width:30px;height:30px}
.map-fab{display:none}
.title{margin:0;font-size:19px;line-height:1.2;font-weight:700;letter-spacing:-.01em}
.subtitle{margin:2px 0 0;color:var(--ink-2);font-size:13px}

.headline{display:flex;align-items:baseline;gap:12px}
.headline-value{font-size:44px;line-height:1;font-weight:700;letter-spacing:-.03em;white-space:nowrap}
.headline-label{color:var(--ink-2);font-size:13px;line-height:1.3;max-width:190px}

.legend{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:6px 16px}
.legend li{display:flex;align-items:center;gap:8px;min-width:0;font-size:13px}
.legend .legend-label{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.legend small{color:var(--ink-3);font-size:11px;white-space:nowrap}
.legend b{margin-left:auto;font-weight:650;font-variant-numeric:tabular-nums}
.legend-note{display:flex;align-items:center;gap:8px;margin-top:-8px;color:var(--ink-3);font-size:12px}
.legend-note .ring{width:9px;height:9px;border-radius:50%;border:1.5px dashed var(--no-data)}

.controls{display:flex;flex-direction:column;gap:10px}
.segmented{display:flex;padding:3px;gap:2px;background:var(--chip);border-radius:10px}
.segmented button{flex:1;border:0;background:transparent;border-radius:8px;padding:6px 10px;font-size:13px;font-weight:600;color:var(--ink-2);white-space:nowrap;transition:background .15s,color .15s}
.segmented button:hover{color:var(--ink)}
.segmented button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.12)}
.segmented.compact{flex:none}
.segmented.compact button{padding:3px 8px;font-size:12px}
.segmented.compact button svg{display:block;width:14px;height:14px;margin:1px 0}

.window{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--ink-2)}
.window label{display:flex;align-items:center;gap:6px}
.window select{appearance:none;-webkit-appearance:none;border:1px solid var(--hairline);border-radius:8px;background:var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23898781' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat right 8px center;padding:5px 26px 5px 9px;color:var(--ink);font-size:13px}

.panel-foot{display:flex;align-items:center;gap:8px;padding-top:12px;border-top:1px solid var(--hairline);font-size:12px;color:var(--ink-3)}
.foot-text{display:flex;flex-direction:column;min-width:0;line-height:1.35}
.panel-foot a{color:inherit}
.panel-foot .segmented{margin-left:auto}

.icon-btn{display:inline-grid;place-items:center;width:32px;height:32px;border:0;border-radius:8px;background:transparent;color:var(--ink-2);flex:none}
.icon-btn:hover{background:var(--chip);color:var(--ink)}
.icon-btn:disabled{cursor:progress}
.icon-btn svg{width:18px;height:18px}
.spinning svg{animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ###########################################
   # Map                                     #
   ########################################### */

.airport{cursor:pointer;outline:none}
.airport .hit{fill:transparent;pointer-events:all}
.airport .halo{fill:var(--surface);stroke:var(--marker-edge);stroke-width:1}
.airport .slice{fill:var(--c)}
.airport .wait-ring{fill:none;stroke:var(--c);stroke-width:5}
.airport .wait-value{fill:var(--ink);font-weight:700;text-anchor:middle;dominant-baseline:central;font-variant-numeric:tabular-nums;pointer-events:none}
.airport .empty{fill:var(--surface);stroke:var(--no-data);stroke-width:1.5;stroke-dasharray:2 2}
.airport .empty.pending{stroke:var(--upcoming);stroke-width:2.5;stroke-dasharray:none}
.airport.selected .halo{stroke:var(--ink);stroke-width:2}
.airport:focus-visible .halo{stroke:var(--focus);stroke-width:3}
.airport-label{font-size:11px;font-weight:700;letter-spacing:.03em;fill:var(--ink-2);paint-order:stroke;stroke:var(--label-halo);stroke-width:3px;stroke-linejoin:round;pointer-events:none}
.airport.selected .airport-label{fill:var(--ink)}

.tooltip{position:fixed;z-index:30;pointer-events:none;min-width:190px;max-width:260px;padding:10px 12px;
  background:var(--surface);color:var(--ink);border:1px solid var(--hairline);border-radius:10px;box-shadow:var(--shadow);font-size:13px}
.tt-title{font-weight:650}
.tt-title span,.code{color:var(--ink-3);font-weight:500;font-size:.85em;letter-spacing:.03em}
.tt-sub{color:var(--ink-2);font-size:12px;margin-bottom:6px}
.tt-line{color:var(--ink-2);font-size:12px}
.tt-rows{list-style:none;margin:0;padding:0;display:grid;gap:3px}
.tt-rows li{display:flex;align-items:center;gap:8px}
.tt-rows b{margin-left:auto;font-weight:600;font-variant-numeric:tabular-nums}

.pill,.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:25;display:flex;align-items:center;gap:10px;
  padding:9px 14px;background:var(--surface);border:1px solid var(--hairline);border-radius:999px;box-shadow:var(--shadow);font-size:13px;white-space:nowrap}
.pill .spinner{width:14px;height:14px;border-radius:50%;border:2px solid var(--chip);border-top-color:var(--ink-2);animation:spin .9s linear infinite}
.toast{border-radius:12px;white-space:normal;max-width:calc(100vw - 32px)}
.toast .warn{color:var(--cancelled);font-size:16px;line-height:1}
.toast button{border:1px solid var(--hairline);background:var(--chip);border-radius:8px;padding:4px 10px;font-weight:600;font-size:13px}

/* ###########################################
   # Airport details drawer / bottom sheet   #
   ########################################### */
.drawer{position:fixed;top:16px;right:16px;bottom:16px;z-index:20;width:410px;max-width:calc(100vw - 32px);
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius);box-shadow:var(--shadow-lg);
  transform:translateX(calc(100% + 32px));visibility:hidden;transition:transform .3s cubic-bezier(.2,.8,.2,1),visibility 0s linear .3s}
.drawer.open{transform:none;visibility:visible;transition:transform .3s cubic-bezier(.2,.8,.2,1)}
.backdrop{position:fixed;inset:0;z-index:19;background:var(--backdrop);opacity:0;visibility:hidden;transition:opacity .25s,visibility 0s linear .25s}
.backdrop.open{opacity:1;visibility:visible;transition:opacity .25s}

.drawer-head{display:flex;align-items:flex-start;gap:12px;padding:18px 14px 12px 20px}
.drawer-head h2{margin:0;font-size:22px;line-height:1.2;font-weight:700;letter-spacing:-.01em}
.drawer-head p{margin:2px 0 0;color:var(--ink-2);font-size:13px}
.drawer-head .icon-btn{margin-left:auto}

.summary{padding:0 20px 14px}
.bar{display:flex;gap:2px;height:10px;border-radius:5px;overflow:hidden;background:var(--chip);margin-bottom:12px}
.bar span{background:var(--c);min-width:3px}
.stats{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.stats b{display:block;font-size:20px;font-weight:700;line-height:1.1;font-variant-numeric:tabular-nums}
.stats span{display:flex;align-items:center;gap:6px;color:var(--ink-2);font-size:12px;white-space:nowrap}
.drawer-note{margin:12px 0 0;padding:10px 12px;border-radius:10px;background:var(--chip);color:var(--ink-2);font-size:13px}

.drawer .segmented{margin:0 20px 8px}
.flights{list-style:none;margin:0;padding:0 0 12px;overflow:auto;flex:1;overscroll-behavior:contain}
.flight{display:grid;grid-template-columns:3.3rem minmax(0,1fr) auto;gap:2px 12px;align-items:start;padding:10px 20px;border-top:1px solid var(--hairline)}
.f-time{font-weight:650;font-variant-numeric:tabular-nums;padding-top:1px}
.f-time small{display:block;color:var(--ink-3);font-weight:500;font-size:11px}
.f-id{font-weight:650}
.f-route{color:var(--ink-2);font-size:13px;overflow-wrap:anywhere}
.f-via{color:var(--ink-3);font-size:12px}
.f-status{text-align:right;font-size:13px;color:var(--ink-2)}
.f-state{display:flex;align-items:center;justify-content:flex-end;gap:6px;white-space:nowrap}
.f-delay{font-weight:650;color:var(--ink);font-variant-numeric:tabular-nums}
.flight.s-cancelled .f-state{color:var(--ink);font-weight:650}
.flight.s-cancelled .f-id,.flight.s-cancelled .f-time{text-decoration:line-through;text-decoration-color:var(--ink-3)}
.flight.checkpoint{grid-template-columns:4.2rem minmax(0,1fr) auto}
.waits-source{margin:0;color:var(--ink-3);font-size:12px}

/* typical delays (history view) */
.history-btn{display:flex;align-items:center;gap:10px;width:100%;margin-top:14px;padding:9px 10px 9px 12px;border:1px solid var(--hairline);border-radius:10px;background:var(--chip);font-size:13px;font-weight:600;text-align:left;transition:background .15s}
.history-btn:hover{background:transparent}
.history-btn svg{width:16px;height:16px;flex:none;color:var(--ink-2)}
.history-btn span{flex:1;min-width:0}
.text-btn{display:inline-flex;align-items:center;gap:2px;align-self:flex-start;margin-left:-6px;padding:4px 8px 4px 2px;border:0;border-radius:8px;background:transparent;color:var(--ink-2);font-size:13px;font-weight:600}
.text-btn:hover{background:var(--chip);color:var(--ink)}
.text-btn svg{width:16px;height:16px}
.link-btn{border:0;padding:0;background:none;color:var(--ink);font-weight:600;text-decoration:underline}

.history{--heat:var(--delayed);flex:1;overflow:auto;overscroll-behavior:contain;display:flex;flex-direction:column;gap:14px;padding:0 20px 20px}
.history.m-cancelled{--heat:var(--cancelled)}
.history.m-combined{--heat:color-mix(in oklab,var(--delayed),var(--cancelled))}
.history p{margin:0;color:var(--ink-2);font-size:13px}
.drawer .history .segmented{margin:0}
.history-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.history h3{margin:0;font-size:17px;line-height:1.2;font-weight:700}
.history h4{margin:0 0 6px;font-size:14px;font-weight:650}
.history-section{display:flex;flex-direction:column;gap:6px;padding-top:12px;border-top:1px solid var(--hairline)}
.history-section h4{margin:0}
.history-status{padding:24px 0;text-align:center}
.history-takeaways{list-style:none;margin:0;padding:0;display:grid;gap:2px;font-size:13px;font-weight:600}
.history-definitions{margin:0;padding-left:18px;display:grid;gap:4px;color:var(--ink-2);font-size:12px}

.heat{width:100%;border-collapse:separate;border-spacing:2px;table-layout:fixed;margin:0 -2px;font-variant-numeric:tabular-nums}
.heat th{padding:3px 0;font-size:11px;font-weight:600;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.heat thead th{text-align:center}
.heat .col-label{width:4.6rem}
.heat tbody th{padding-right:6px;text-align:left;font-size:12px;color:var(--ink-2)}
.heat tbody th small{display:block;font-size:10px;font-weight:500;color:var(--ink-3)}
.heat td{padding:7px 0;border-radius:4px;text-align:center;font-size:13px;font-weight:600;color:var(--ink);cursor:default}
.heat td.none{color:var(--ink-3);font-weight:400;background:none}
.heat-legend{display:flex;align-items:center;flex-wrap:wrap;gap:4px 8px;font-size:11px;color:var(--ink-3)}
.heat-legend .ramp{flex:0 1 120px;height:8px;border-radius:4px}

.dates tbody th{padding:4px 6px 4px 0;white-space:normal;line-height:1.25}
.dates .col-diff{width:3.6rem}
.dates .col-year{width:2.5rem}
.dates thead th{font-size:10px}
.dates td{padding:5px 0;font-size:12px}
.dates td.diff{background:none;color:var(--ink-2);font-weight:500;white-space:nowrap}
.dates td.diff.strong{color:var(--ink);font-weight:650}

.history-foot{display:flex;flex-direction:column;gap:6px;padding-top:12px;border-top:1px solid var(--hairline)}
.history-foot p,.history-foot details{font-size:11px;color:var(--ink-3)}
.history-foot a{color:inherit}
.history-foot summary{cursor:pointer}
.history-foot details p{margin-top:6px}

.noscript{position:fixed;left:16px;right:16px;bottom:16px;z-index:40;margin:0;padding:12px 16px;background:var(--surface);border:1px solid var(--hairline);border-radius:12px;box-shadow:var(--shadow)}
.empty-state{padding:24px 20px;color:var(--ink-3);text-align:center;border-top:1px solid var(--hairline)}

/* ###########################################
   # Narrow screens                          #
   ########################################### */
@media (max-width: 759px){
  .app{display:flex;flex-direction:column}
  .panel{position:relative;top:auto;left:auto;width:auto;max-height:none;overflow:visible;gap:10px;padding:12px 16px 10px;
    border-radius:0;border-width:0 0 1px;box-shadow:none;background:var(--surface)}
  .subtitle{display:none}
  .title{font-size:18px}
  .headline-value{font-size:32px}
  .legend{gap:4px 14px}
  .legend-note{margin-top:-4px}
  .controls{flex-direction:row;flex-wrap:wrap;align-items:center}
  .controls .segmented{flex:1 1 180px}
  .panel-foot{padding-top:8px}
  #map-wrap{position:relative;inset:auto;flex:1;min-height:0}
  .panel-head .panel-hide{display:inline-grid}
  .app.controls-hidden .panel{display:none}
  .app.controls-hidden .map-fab{position:fixed;top:calc(12px + env(safe-area-inset-top));left:12px;z-index:6;display:grid;place-items:center;width:42px;height:42px;
    border:1px solid var(--hairline);border-radius:12px;background:var(--surface);color:var(--ink);box-shadow:var(--shadow)}
  .map-fab svg{width:20px;height:20px}

  .drawer{top:auto;left:0;right:0;bottom:0;width:auto;max-width:none;max-height:82dvh;border-radius:18px 18px 0 0;border-width:1px 0 0;
    transform:translateY(100%)}
  .drawer::before{content:"";align-self:center;width:36px;height:4px;border-radius:2px;background:var(--hairline);margin-top:8px}
  .drawer-head{padding-top:10px}
  .flight{padding:10px 16px}
  .summary{padding:0 16px 12px}
  .drawer .segmented{margin:0 16px 8px}
  .history{padding:0 16px 16px}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition-duration:0s!important;animation-duration:0s!important}
}