:root{
  --bg:#070d14;
  --panel:#0c141f;
  --panel-2:#111c29;
  --line:#1d2b3c;
  --text:#e8f1f8;
  --muted:#7e94a8;
  --cyan:#3fd6e8;
  --amber:#f2a44c;
  --panel-w:26%;
}

*{box-sizing:border-box}
/* id selectors below would otherwise beat the UA rule for [hidden] */
[hidden]{display:none!important}
html,body{height:100%;margin:0}
body{
  background:var(--bg);
  color:var(--text);
  font:15px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow:hidden;
}
button{font:inherit;cursor:pointer}

/* ------------------------------------------------------------------ gate */
#gate{
  position:fixed;inset:0;z-index:2000;
  display:flex;align-items:center;justify-content:center;
  background:
    radial-gradient(1100px 700px at 50% 40%, #10283a 0%, #060b12 62%, #04080d 100%);
}
.gate-card{width:min(440px,90vw);text-align:center;padding:8px}
.gate-mark{
  font-size:11px;letter-spacing:.32em;color:var(--cyan);
  font-weight:700;margin-bottom:26px;
}
.gate-card h1{font-size:30px;line-height:1.15;margin:0 0 10px;font-weight:600;letter-spacing:-.02em}
.gate-card p{color:var(--muted);margin:0 0 26px;font-size:14.5px}
#gate-form{display:flex;flex-direction:column;gap:10px}
#code{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text);
  padding:15px 16px;border-radius:10px;
  font-size:17px;text-align:center;letter-spacing:.14em;
  text-transform:uppercase;outline:none;
  transition:border-color .15s, background .15s;
}
#code:focus{border-color:var(--cyan);background:rgba(63,214,232,.06)}
#code::placeholder{letter-spacing:.06em;text-transform:none;color:#4d6072}
#gate-form button{
  background:var(--cyan);color:#04202a;border:0;
  padding:14px;border-radius:10px;font-weight:650;font-size:15px;
  transition:filter .15s;
}
#gate-form button:hover{filter:brightness(1.08)}
#gate-error{
  color:#ff7a7a;font-size:13.5px;min-height:20px;margin-top:12px;
  opacity:0;transition:opacity .15s;
}
#gate-error.show{opacity:1}
.gate-hint{margin-top:26px;color:#55697c;font-size:12.5px}
.gate-hint b{color:var(--muted);letter-spacing:.08em}

/* ------------------------------------------------------------------ app */
#app{display:flex;height:100%}
#map{flex:1;background:#08131d}
.leaflet-container{background:#08131d}

#panel{
  width:var(--panel-w);min-width:320px;max-width:460px;
  background:var(--panel);
  border-left:1px solid var(--line);
  display:flex;flex-direction:column;
  height:100%;
}

.panel-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 18px;border-bottom:1px solid var(--line);flex:none;
}
.mark{font-size:10.5px;letter-spacing:.3em;color:var(--cyan);font-weight:700}
#signout{
  background:none;border:1px solid var(--line);color:var(--muted);
  font-size:11px;padding:5px 10px;border-radius:6px;letter-spacing:.08em;
}
#signout:hover{color:var(--text);border-color:#2c3f55}

/* roster (demo mode) */
.roster{
  display:flex;gap:6px;padding:12px 14px;overflow-x:auto;
  border-bottom:1px solid var(--line);flex:none;
}
.roster:empty{display:none}
.roster button{
  background:var(--panel-2);border:1px solid var(--line);color:var(--muted);
  padding:6px 11px;border-radius:20px;font-size:12.5px;white-space:nowrap;
}
.roster button.on{border-color:var(--cyan);color:var(--text);background:rgba(63,214,232,.1)}

#detail{flex:1;overflow-y:auto;padding:18px}

.photo-wrap{position:relative;border-radius:12px;overflow:hidden;aspect-ratio:16/10;background:var(--panel-2)}
.photo-wrap img{width:100%;height:100%;object-fit:cover;display:block}
.photo-tag{
  position:absolute;left:10px;top:10px;
  background:rgba(6,12,18,.72);backdrop-filter:blur(6px);
  padding:4px 10px;border-radius:20px;font-size:10.5px;
  letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);font-weight:600;
}
#a-name{margin:16px 0 2px;font-size:26px;font-weight:600;letter-spacing:-.02em}
.species{color:var(--muted);font-size:13.5px;margin-bottom:18px}

.stats{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-bottom:16px}
.stat{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:12px 13px}
.stat.big{grid-column:1/-1}
.stat .label{color:var(--muted);font-size:11px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:5px}
.stat .value{font-size:20px;font-weight:600;font-variant-numeric:tabular-nums}
.stat.big .value{font-size:31px;color:var(--cyan)}
.stat .value em{font-style:normal;font-size:14px;color:var(--muted);font-weight:400}

.live{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:13px;margin-bottom:16px}
.live-row{display:flex;align-items:center;gap:8px;font-size:13.5px;margin-bottom:5px}
.live-row.muted,.muted{color:var(--muted)}
.live-row b{font-weight:600}
.dot{
  width:8px;height:8px;border-radius:50%;background:var(--cyan);flex:none;
  box-shadow:0 0 0 0 rgba(63,214,232,.6);animation:pulse 2.2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(63,214,232,.55)}
  70%{box-shadow:0 0 0 9px rgba(63,214,232,0)}
  100%{box-shadow:0 0 0 0 rgba(63,214,232,0)}
}
.coords{
  margin-top:9px;padding-top:9px;border-top:1px solid var(--line);
  font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:.04em;
}

.history-head{
  display:flex;justify-content:space-between;align-items:baseline;
  font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);margin-bottom:8px;
}
.history ol{list-style:none;margin:0;padding:0 10px 0 0;max-height:270px;overflow-y:auto}
.history li{
  display:flex;justify-content:space-between;gap:10px;
  padding:8px 0;border-bottom:1px solid rgba(29,43,60,.6);
  font-size:12.5px;font-variant-numeric:tabular-nums;
}
.history li:first-child{color:var(--cyan)}
.history li span:last-child{color:var(--muted);font-size:11.5px}

.panel-foot{
  flex:none;border-top:1px solid var(--line);padding:13px 18px;
  display:flex;flex-direction:column;gap:9px;
}
.speed,.basemap{display:flex;align-items:center;justify-content:space-between;font-size:11.5px;color:var(--muted)}
.speed-btns{display:flex;gap:4px}
.speed-btns button{
  background:var(--panel-2);border:1px solid var(--line);color:var(--muted);
  padding:4px 9px;border-radius:6px;font-size:11.5px;
}
.speed-btns button.on{border-color:var(--cyan);color:var(--cyan)}
.disclaimer{font-size:10.5px;color:#3f5265;padding-top:3px}

/* markers */
.head-marker{
  width:16px;height:16px;border-radius:50%;
  border:2.5px solid #fff;
  box-shadow:0 0 14px rgba(0,0,0,.55);
}
.head-marker::after{
  content:"";position:absolute;inset:-7px;border-radius:50%;
  border:1.5px solid currentColor;opacity:.55;
  animation:ring 2.4s ease-out infinite;
}
@keyframes ring{
  0%{transform:scale(.6);opacity:.7}
  100%{transform:scale(1.7);opacity:0}
}
.leaflet-popup-content-wrapper{background:var(--panel-2);color:var(--text);border-radius:10px}
.leaflet-popup-tip{background:var(--panel-2)}
.leaflet-popup-content{margin:10px 12px;font-size:13px}
.leaflet-popup-content b{color:var(--cyan)}
.leaflet-control-attribution{background:rgba(7,13,20,.8)!important;color:#5d7a92!important}
.leaflet-control-attribution a{color:#6f8ba3!important}

@media (max-width:820px){
  #app{flex-direction:column}
  #map{height:52vh;flex:none}
  #panel{width:100%;max-width:none;height:48vh;border-left:0;border-top:1px solid var(--line)}
}