:root{
  --bg:#070A12;
  --card:#0D1221;
  --card2:#0B1020;
  --border:rgba(255,255,255,.08);
  --text:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.62);
  --muted2:rgba(255,255,255,.45);
  --shadow: 0 18px 50px rgba(0,0,0,.35);
  --r:18px;
  --pad:18px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--text);
  background:
    radial-gradient(1000px 700px at 20% -10%, rgba(73,85,255,.20), transparent 55%),
    radial-gradient(800px 650px at 110% 10%, rgba(255,108,214,.12), transparent 50%),
    radial-gradient(900px 700px at 50% 120%, rgba(48,210,255,.12), transparent 55%),
    linear-gradient(180deg, #060814, #050712 60%, #040611);
}

a{color:inherit}
.wrap{max-width:1180px;margin:0 auto;padding:22px}
.grid{display:grid;gap:18px}
.hero{grid-template-columns: 1.5fr 1fr}
@media (max-width: 980px){ .hero{grid-template-columns:1fr} }

.topbar{
  position:sticky;top:0;z-index:10;
  backdrop-filter: blur(10px);
  background: rgba(6,8,18,.65);
  border-bottom:1px solid var(--border);
  padding:14px 18px;
  display:flex;align-items:center;justify-content:space-between;
}

.brand{display:flex;align-items:center;gap:12px}
.logo{font-size:24px}
.title h1{font-size:16px;line-height:1.2;margin:0}
.title p{margin:2px 0 0 0;color:var(--muted);font-size:12px}

.top-actions{display:flex;gap:10px}

.card{
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border:1px solid var(--border);
  border-radius:var(--r);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.card-body{padding:var(--pad)}
.hero-card{padding:var(--pad)}
.kpi-card{padding:var(--pad)}

.hero-row{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}
.hero-row h2{margin:0 0 4px 0;font-size:18px}
.muted{color:var(--muted)}
.mini-muted{color:var(--muted2);font-size:12px}

.controls{display:grid;gap:12px;margin-top:14px}
.field label{display:block;font-size:12px;color:var(--muted);margin:0 0 6px 2px}
.field-row{display:flex;gap:10px;align-items:center}
@media (max-width: 620px){ .field-row{flex-wrap:wrap} }

input, select{
  width:100%;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid var(--border);
  background: rgba(0,0,0,.22);
  color: var(--text);
  outline:none;
}
select{cursor:pointer}
input::placeholder{color:rgba(255,255,255,.35)}

.btn{
  padding:11px 14px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.10);
  color:var(--text);
  cursor:pointer;
  font-weight:600;
}
.btn:hover{background: rgba(255,255,255,.14)}
.btn.ghost{
  background: transparent;
  border:1px solid rgba(255,255,255,.12);
}
.btn.ghost:hover{background: rgba(255,255,255,.06)}
.btn:disabled{opacity:.55;cursor:not-allowed}

.pill{
  display:inline-flex;align-items:center;justify-content:center;
  padding:8px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.25);
  color: var(--muted);
  font-family: var(--mono);
  font-size:12px;
  white-space:nowrap;
}

.hint{color:var(--muted2);font-size:12px;margin:6px 2px 0 2px;min-height:16px}
.divider{height:1px;background:var(--border);margin:14px 0}

.kpi-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:12px;
}
@media (max-width: 980px){ .kpi-grid{grid-template-columns:repeat(2,1fr)} }
@media (max-width: 520px){ .kpi-grid{grid-template-columns:1fr} }

.kpi{
  padding:12px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.18);
}
.kpi .k{color:var(--muted);font-size:12px}
.kpi .v{font-size:20px;font-weight:800;margin-top:6px}
.kpi .s{color:var(--muted2);font-size:12px;margin-top:2px}

.collapsible .card-head{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px var(--pad);
  border:0;
  background: transparent;
  color:inherit;
  cursor:pointer;
}
.card-head h2{margin:0;font-size:16px}
.card-head p{margin:4px 0 0 0;font-size:12px;color:var(--muted)}
.chev{color:var(--muted);font-size:14px;transform: rotate(0deg);transition: transform .2s ease}
.collapsible[data-open="false"] .chev{transform: rotate(-90deg)}
.collapsible[data-open="false"] .card-body{display:none}

.two{
  display:grid;
  grid-template-columns: 1.1fr 1fr;
  gap:16px;
}
@media (max-width: 980px){ .two{grid-template-columns:1fr} }

.stats-grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap:12px;
}
@media (max-width: 520px){ .stats-grid{grid-template-columns:1fr} }

.stat{
  padding:12px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.18);
}
.stat .k{color:var(--muted);font-size:12px}
.stat .v{font-size:18px;font-weight:850;margin-top:6px}
.stat .s{color:var(--muted2);font-size:12px;margin-top:2px}

.sub{margin:0 0 10px 0;font-size:13px;color:var(--muted)}
.small{font-size:12px}
canvas{
  width:100%;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.18);
}

.apod{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:16px;
}
@media (max-width: 980px){ .apod{grid-template-columns:1fr} }
.apod-media{
  min-height:260px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.18);
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
}
.apod-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.apod-text{padding:2px}
.apod-title{font-size:18px;font-weight:900}
.apod-expl{color:rgba(255,255,255,.78);line-height:1.5}
.row{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}

.dlg{
  width:min(760px, calc(100% - 24px));
  border:1px solid var(--border);
  border-radius:18px;
  background: rgba(10,12,24,.96);
  color:var(--text);
  box-shadow: var(--shadow);
}
.dlg::backdrop{background: rgba(0,0,0,.55)}
.dlg-inner{padding:14px 14px 10px 14px}
.dlg-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.dlg-body{padding:8px 6px 10px 6px}
.sources{margin:8px 0 0 18px;color:rgba(255,255,255,.80)}
.sources li{margin:8px 0}