:root {
  color-scheme: dark;
  --bg: #090b14;
  --panel: #111627;
  --border: #24304d;
  --text: #e9ecf7;
  --muted: #9aa6c6;
  --accent: #66e3ff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 700px at 20% -5%, #1a2d60 0%, transparent 60%), var(--bg);
}
.bg { position: fixed; inset: 0; backdrop-filter: blur(30px); pointer-events: none; }
.app-shell { max-width: 980px; margin: 0 auto; padding: 2rem 1rem 4rem; position: relative; }
.kicker { color: var(--accent); text-transform: uppercase; letter-spacing: .08em; font-weight: 700; font-size: .72rem; }
h1 { margin-top: .25rem; margin-bottom: .5rem; font-size: 2.2rem; }
.muted { color: var(--muted); }
.panel { background: linear-gradient(180deg, rgba(21,30,50,.75), rgba(12,17,31,.9)); border: 1px solid var(--border); border-radius: 18px; padding: 1.1rem 1rem; margin-top: 1rem; }
.controls .row { display: grid; grid-template-columns: 150px 1fr auto; gap: .7rem; align-items: center; margin-bottom: .65rem; }
label { font-weight: 600; }
select, input[type="range"], button { border-radius: 10px; border: 1px solid var(--border); background: #111b34; color: var(--text); padding: .55rem; }
button { cursor: pointer; background: linear-gradient(135deg, #3ea9ff, #5bf2ff); color: #081227; border: none; width: 100%; font-weight: 800; }
.btn-secondary { width: auto; background: #1a2747; color: var(--text); border: 1px solid var(--border); font-weight: 600; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: .6rem; margin-top:.6rem; }
.card { border: 1px solid var(--border); border-radius: 12px; padding: .75rem; background: rgba(9,13,24,.8); }
.card .title { color: var(--muted); font-size: .8rem; }
.card .value { font-size: 1.05rem; font-weight: 700; margin-top: .25rem; }
.card.fixed { border-color: #4faad5; }
.chips { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .45rem; }
.chip { border: 1px solid var(--border); border-radius: 999px; padding: .35rem .65rem; background: #0f1830; font-size: .9rem; }
.person-actions { display:flex; gap:.5rem; margin-top:.4rem; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { padding: .4rem; border-bottom: 1px solid #1f2740; text-align: left; }
.chart { height: 340px; margin-top: .8rem; border:1px solid var(--border); border-radius: 12px; background: rgba(9,13,24,.65); }
@media (max-width: 640px) { .controls .row { grid-template-columns: 1fr; } }