:root{
  --bg:#0a1018;
  --panel:rgba(12,20,30,.86);
  --panel-brd:rgba(120,190,255,.16);
  --ink:#e8f1fa;
  --ink-dim:#8fa5bb;
  --accent:#4fd1ff;
  --gust:#ffd166;
  --shadow:0 10px 40px rgba(0,0,0,.55);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{
  background:var(--bg);color:var(--ink);overflow:hidden;
  font:14px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
}
#map{position:absolute;inset:0;background:#0a1018}
#arrow-layer{position:absolute;inset:0;pointer-events:none;z-index:420}

/* dark basemap from plain OSM tiles: invert + hue flip keeps land dark and labels legible */
.leaflet-tile-pane{filter:invert(1) hue-rotate(180deg) brightness(.92) contrast(.92) saturate(.55)}
.leaflet-container{background:#0a1018}
.leaflet-control-attribution{background:rgba(10,16,24,.7)!important;color:#7f93a8!important;font-size:10px}
.leaflet-control-attribution a{color:#9fb6cc!important}
.leaflet-bar a{background:#101a26!important;color:#cfe3f5!important;border-color:#22344a!important}
.leaflet-bar a:hover{background:#17273a!important}
/* keep zoom + attribution clear of the timeline panel */
.leaflet-bottom.leaflet-left{bottom:172px}

.panel{background:var(--panel);border:1px solid var(--panel-brd);border-radius:16px;
  box-shadow:var(--shadow);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}

/* ---------- top bar ---------- */
#topbar{position:absolute;z-index:500;top:14px;left:14px;right:14px;
  display:flex;justify-content:space-between;align-items:flex-start;gap:12px;pointer-events:none}
.brand{display:flex;gap:10px;align-items:center;pointer-events:auto;
  background:var(--panel);border:1px solid var(--panel-brd);border-radius:14px;
  padding:9px 14px;box-shadow:var(--shadow);backdrop-filter:blur(14px)}
.brand h1{margin:0;font-size:15px;letter-spacing:.14em;text-transform:uppercase}
.brand p{margin:1px 0 0;font-size:11px;color:var(--ink-dim);font-family:var(--mono)}
.dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(79,209,255,.55);
  animation:pulse 2.4s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 12px rgba(79,209,255,0)}100%{box-shadow:0 0 0 0 rgba(79,209,255,0)}}

.units{display:flex;pointer-events:auto;background:var(--panel);border:1px solid var(--panel-brd);
  border-radius:12px;padding:3px;box-shadow:var(--shadow);backdrop-filter:blur(14px)}
.units button{all:unset;padding:6px 11px;border-radius:9px;font:600 11px/1 var(--mono);
  color:var(--ink-dim);cursor:pointer;letter-spacing:.05em}
.units button.on{background:rgba(79,209,255,.16);color:var(--accent)}

/* ---------- HUD ---------- */
#hud{position:absolute;z-index:500;left:14px;top:82px;width:268px;padding:16px 16px 13px;
  background:var(--panel);border:1px solid var(--panel-brd);border-radius:16px;
  box-shadow:var(--shadow);backdrop-filter:blur(14px)}
.hud-head{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.badge{font:700 10px/1 var(--mono);letter-spacing:.12em;padding:4px 7px;border-radius:6px}
.badge.live{background:rgba(80,230,150,.15);color:#64e6a0}
.badge.fcst{background:rgba(170,140,255,.16);color:#b79bff}
#hud-time{font:11px/1 var(--mono);color:var(--ink-dim)}

.readout{margin:4px 0 12px}
.big{display:flex;align-items:baseline;gap:6px;font-variant-numeric:tabular-nums}
.big #spd{font:700 54px/1 var(--mono);letter-spacing:-.03em}
.unit{font:600 13px/1 var(--mono);color:var(--ink-dim)}
.gust-row{display:flex;align-items:baseline;gap:6px;margin-top:5px;font-family:var(--mono);color:var(--gust)}
.gust-row .label{color:var(--ink-dim);font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.gust-row #gst{font-size:19px;font-weight:700}
.gust-row .unit{color:rgba(255,209,102,.6)}
.gf{margin-left:auto;font-size:11px;color:var(--ink-dim)}

.dirbox{display:flex;gap:11px;align-items:center;padding:10px 0;border-top:1px solid rgba(255,255,255,.07);
  border-bottom:1px solid rgba(255,255,255,.07)}
.dir-arrow{width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.05);
  display:grid;place-items:center;flex:0 0 auto}
.dir-arrow svg{width:26px;height:26px;transition:transform .5s cubic-bezier(.3,1.2,.4,1)}
.dir-arrow path{fill:var(--accent)}
.dir-main{font:700 17px/1.1 var(--mono)}
#dir-deg{color:var(--ink-dim);font-weight:400;font-size:13px}
.dir-sub{font-size:10.5px;color:var(--ink-dim);margin-top:3px}

.bft{margin-top:11px}
.bft-scale{display:flex;gap:2px;height:7px}
.bft-scale i{flex:1;border-radius:2px;background:rgba(255,255,255,.08)}
.bft-text{margin-top:7px;font-size:11.5px;color:var(--ink-dim)}
.bft-text b{color:var(--ink);font-family:var(--mono);font-size:13px}

.extra{display:grid;grid-template-columns:1fr 1fr;gap:7px 10px;margin-top:12px}
.extra div{font-size:11px;color:var(--ink-dim)}
.extra b{display:block;color:var(--ink);font:600 13px/1.3 var(--mono)}
.src{margin-top:12px;font-size:10px;line-height:1.5;color:#65798d}
.src b{color:#8fa5bb}
.src .barbkey{margin-top:6px;color:#55697d}
.src .raw{margin-top:7px;display:flex;flex-direction:column;gap:5px}
.src code{display:block;font:9.5px/1.4 var(--mono);color:#9fd0e8;background:rgba(255,255,255,.05);
  border-left:2px solid rgba(79,209,255,.5);padding:5px 7px;border-radius:0 5px 5px 0;
  max-height:52px;overflow:auto;white-space:pre-wrap;word-break:break-word}
.src code.taf{color:#c9b9f0;border-left-color:rgba(183,155,255,.5)}
.src .rawitem{cursor:pointer}
.src .rawitem code{transition:background .12s}
.src .rawitem:hover code{background:rgba(255,255,255,.1)}
.src .decoded{display:none;margin:4px 0 2px 8px;padding-left:8px;font-size:10px;line-height:1.55;
  color:#8fa5bb;border-left:2px solid rgba(79,209,255,.35)}
.src .rawitem:hover .decoded,.src .rawitem.open .decoded{display:block}
.src .rawitem.open code{background:rgba(79,209,255,.12)}

/* ---------- timeline ---------- */
#timeline{position:absolute;z-index:500;left:14px;right:14px;bottom:14px;padding:11px 15px 9px;
  background:var(--panel);border:1px solid var(--panel-brd);border-radius:16px;
  box-shadow:var(--shadow);backdrop-filter:blur(14px)}
.tl-head{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.tl-head button{all:unset;cursor:pointer;font:700 11px/1 var(--mono);letter-spacing:.06em;
  padding:6px 9px;border-radius:8px;background:rgba(255,255,255,.06);color:var(--ink-dim);min-width:26px;text-align:center}
.tl-head button:hover{background:rgba(79,209,255,.16);color:var(--accent)}
.tl-head button.on{background:rgba(79,209,255,.2);color:var(--accent)}
.tl-label{display:flex;gap:8px;align-items:baseline;font-family:var(--mono);font-size:12px}
#tl-rel{color:var(--ink-dim);font-size:11px}
.tl-legend{margin-left:auto;display:flex;gap:12px;font-size:10px;color:var(--ink-dim);align-items:center}
.tl-legend span{display:flex;gap:5px;align-items:center}
.sw{width:14px;height:0;border-top:2px solid var(--accent);display:inline-block}
.sw.dash{border-top:2px dashed var(--gust)}
.sw.obs{border-top:2px solid #64e6a0}
.sw.taf{border-top:2px solid #c9b9f0}
#chart{display:block;width:100%;height:86px}
#slider{-webkit-appearance:none;appearance:none;width:100%;height:18px;background:transparent;margin:0;cursor:pointer}
#slider::-webkit-slider-runnable-track{height:3px;border-radius:2px;background:rgba(255,255,255,.12)}
#slider::-webkit-slider-thumb{-webkit-appearance:none;width:15px;height:15px;border-radius:50%;
  background:var(--accent);margin-top:-6px;box-shadow:0 0 0 4px rgba(79,209,255,.18)}
#slider::-moz-range-track{height:3px;border-radius:2px;background:rgba(255,255,255,.12)}
#slider::-moz-range-thumb{width:15px;height:15px;border:0;border-radius:50%;background:var(--accent)}
.tl-axis{position:relative;height:13px;font:10px/13px var(--mono);color:var(--ink-dim)}
.tl-axis b{position:absolute;transform:translateX(-50%);font-weight:500;white-space:nowrap}

/* ---------- misc ---------- */
#toast{position:absolute;z-index:600;left:50%;bottom:170px;transform:translateX(-50%) translateY(12px);
  background:rgba(220,80,80,.92);color:#fff;padding:9px 15px;border-radius:10px;font-size:12px;
  opacity:0;pointer-events:none;transition:.3s}
#toast.show{opacity:1;transform:translateX(-50%)}
@media (max-width:820px){
  #topbar{top:8px;left:8px;right:8px;gap:8px}
  .brand{padding:7px 10px;min-width:0;flex:1}
  .brand h1{font-size:13px}
  .brand p{display:none}
  .units{flex:0 0 auto;padding:2px}
  .units button{padding:6px 7px;font-size:10px}

  #hud{left:8px;right:8px;width:auto;top:58px;padding:11px 12px}
  .big #spd{font-size:40px}
  .readout{margin-bottom:9px}
  .dirbox{padding:8px 0}
  .extra{grid-template-columns:repeat(3,1fr);margin-top:9px}
  .src{margin-top:9px}
  .src .raw{display:none}          /* raw METAR/TAF is desktop-only — too tall for phones */

  #timeline{left:8px;right:8px;bottom:8px;padding:9px 11px 7px}
  #chart{height:60px}
  .tl-legend{display:none}
  .leaflet-bottom.leaflet-left{bottom:150px}
}