:root{
  --bg:#0f172a;
  --panel:#111827;
  --text:#e5e7eb;
  --muted:#9ca3af;
  --accent:#22d3ee;
  --good:#10b981;
  --bad:#ef4444;
  --warn:#f59e0b;
  --border:#1f2937;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font:14px/1.4 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;
  background:var(--bg);
  color:var(--text);
}
header{
  padding:16px 20px;
  border-bottom:1px solid var(--border);
  background:linear-gradient(180deg,#0b1022,#0f172a 40%);
}
header h1{margin:0;font-size:20px}
.tagline{margin:4px 0 0;color:var(--muted)}

main{
  display:grid;
  grid-template-columns: 360px 1fr;
  gap:16px;
  padding:16px;
}

.controls{
  display:flex;flex-direction:column;gap:16px
}
.add-city,.weights{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:10px;
  padding:12px;
}
h2{margin:0 0 8px 0;font-size:16px}
form{display:grid;grid-template-columns:1fr 1fr auto;gap:8px;align-items:end}
label{display:flex;flex-direction:column;gap:4px;color:var(--muted)}
input,select,button,textarea{
  background:#0b1222;
  color:var(--text);
  border:1px solid var(--border);
  padding:8px 10px;
  border-radius:8px;
}
button{cursor:pointer}
button:hover{border-color:#2a3a5a}

.bulk{margin-top:10px;display:flex;gap:8px}

.weight-grid{display:grid;grid-template-columns:1fr auto 56px;gap:6px;align-items:center}
.weight-grid .label{color:var(--text)}
.prefs{margin-top:12px;display:grid;grid-template-columns:1fr 1fr;gap:8px}
.hint{margin:0 0 8px 0;color:var(--muted)}

.results{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:12px}
.toolbar{display:flex;gap:12px;margin-bottom:8px}
table{width:100%;border-collapse:separate;border-spacing:0}
th,td{padding:8px;border-bottom:1px solid var(--border);text-align:left}
th{position:sticky;top:0;background:var(--panel)}
tbody tr:hover{background:#0b1222}

.status{display:flex;align-items:center;gap:6px;color:var(--muted)}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block}
.dot.loading{background:var(--warn);animation:pulse 1s infinite}
.dot.done{background:var(--good)}
.dot.error{background:var(--bad)}
@keyframes pulse{0%{opacity:0.5}50%{opacity:1}100%{opacity:0.5}}

footer{padding:12px 16px;border-top:1px solid var(--border);color:var(--muted)}
.deploy{margin-top:4px}

.crit-good{color:var(--good)}
.crit-bad{color:var(--bad)}