style.css

:root{
  --bg:#0f1720;
  --panel:#0b1220;
  --accent:#7dd3fc;
  --muted:#94a3b8;
  --good:#10b981;
  --bad:#f97316;
  --danger:#ef4444;
  --yellow:#facc15;
  --card:#071022;
  --glass: rgba(255,255,255,0.02);
  font-family: Inter, Roboto, system-ui, -apple-system, "Segoe UI", Arial;
}

*{box-sizing:border-box}
html,body{height:100%;margin:0;background:linear-gradient(180deg,var(--bg),#071022);color:#e6eef8}
header{padding:12px 20px;border-bottom:1px solid rgba(255,255,255,0.03)}
h1{margin:0;font-size:20px;color:var(--accent)}
/* Main grid: left (resources+jobs), center (buildings+log), right (controls) */
#main-grid{
  display:grid;
  grid-template-columns: 320px 1fr 260px;
  gap:12px;
  padding:16px;
  align-items:start;
}

/* columns */
.column{display:flex;flex-direction:column;gap:12px}

/* panels */
.panel{background:var(--panel);padding:12px;border-radius:8px;box-shadow:0 4px 18px rgba(2,6,23,0.6)}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.building-cell{background:var(--card);padding:8px;border-radius:6px;display:flex;flex-direction:column;gap:8px;border:1px solid rgba(255,255,255,0.03)}
.building-name{font-weight:700;color:var(--accent)}
.building-desc{font-size:12px;color:var(--muted);min-height:36px}
.building-controls{display:flex;justify-content:space-between;align-items:center}
.btn{background:transparent;border:1px solid rgba(255,255,255,0.06);padding:6px 8px;border-radius:6px;color:var(--accent);cursor:pointer}
.btn:disabled{opacity:0.5;cursor:not-allowed}
.resource-row{display:flex;justify-content:space-between;align-items:center;padding:6px;border-radius:6px;margin-bottom:6px;background:var(--glass)}
.resource-name{font-weight:600}
.resource-stats{font-size:13px;color:var(--muted)}
.job-row{display:flex;justify-content:space-between;align-items:center;padding:6px;border-radius:6px;margin-bottom:6px;background:linear-gradient(90deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01))}
.job-name{font-weight:700}
.job-controls{display:flex;gap:8px;align-items:center}
.event-log{max-height:260px;overflow:auto;padding:6px;background:rgba(0,0,0,0.12);border-radius:6px;font-size:13px}
.small-muted{font-size:12px;color:var(--muted)}
.tooltip{position:fixed;pointer-events:none;background:#071022;border:1px solid rgba(255,255,255,0.04);padding:8px;border-radius:6px;color:var(--muted);font-size:13px;z-index:9999;max-width:320px}
.yellow{color:var(--yellow)}
.green{color:var(--good)}
.red{color:var(--danger)}
.gain-positive{color:var(--good)}
.gain-negative{color:var(--yellow)}
.resource-zero{color:var(--danger)}
.build-cost{font-size:12px;color:var(--muted)}
.footer{padding:8px;text-align:center;color:var(--muted)}

/* controls */
.control-row{display:flex;gap:8px;align-items:center}
#right-column .panel{position:sticky;top:16px}

/* responsive */
@media (max-width:1000px){
  #main-grid{grid-template-columns: 1fr; padding:12px}
  #right-column{order:3}
  #center-column{order:2}
  #left-column{order:1}
  .grid{grid-template-columns:repeat(2,1fr)}
}