:root {
  --bg: #0b1020;
  --panel: #121a2e;
  --text: #e6ecff;
  --muted: #a5b4d6;
  --accent: #6ea8fe;
  --border: #233055;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1200px 1200px at 10% 10%, #0f1730 0%, var(--bg) 60%);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 15, 30, 0.6);
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
}
.site-header h1 { font-size: 20px; margin: 0; letter-spacing: 0.2px; }
.site-header a { color: var(--muted); text-decoration: none; }
.site-header a:hover { color: var(--text); }
.site-header nav { display: flex; align-items: center; gap: 10px; }
.site-header .nav-label { color: var(--text); font-size: 12px; opacity: 0.8; margin-right: 4px; }
.site-header .nav-link {
  background: linear-gradient(180deg, rgba(110,168,254,0.18), rgba(110,168,254,0.06));
  color: #e6ecff;
  border: 1px solid rgba(110,168,254,0.4);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 600;
}
.site-header .nav-link:hover {
  background: linear-gradient(180deg, rgba(110,168,254,0.28), rgba(110,168,254,0.12));
  border-color: rgba(110,168,254,0.7);
}

/* Icon-only GitHub button */
.site-header .nav-icon { display: inline-flex; align-items: center; justify-content: center; padding: 8px; width: 36px; height: 36px; }
.site-header .nav-icon svg { width: 18px; height: 18px; display: block; }

.container { max-width: 1200px; margin: 0 auto; padding: 20px; }

.controls { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.controls .control { display: flex; flex-direction: column; gap: 6px; }
.controls label { color: var(--muted); font-size: 12px; }
.controls select, .controls input { 
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
}
.controls button {
  background: var(--accent);
  color: #0b1020;
  border: none;
  border-radius: 8px;
  padding: 10px 12px;
  cursor: pointer;
}
.controls .search { grid-column: span 2; }

.plots { display: grid; grid-template-columns: 3fr 1fr; gap: 16px; margin-top: 16px; }
.plot { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; min-height: 560px; }
.legend { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 12px; }

/* Figures page adjustments to avoid overlapping plots */
.container.figures .plots { grid-template-columns: 1fr; }
.container.figures .subsection { margin-bottom: 16px; }
.container.figures .plot { min-height: 400px; }
.container.figures .table { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 8px; overflow: auto; }
.container.figures table { width: 100%; border-collapse: collapse; font-size: 12px; }
.container.figures th, .container.figures td { border-bottom: 1px solid var(--border); padding: 6px 8px; text-align: left; }

.details { margin-top: 16px; }
#info { color: var(--muted); }

.site-footer { border-top: 1px solid var(--border); padding: 16px 20px; color: var(--muted); }

@media (max-width: 960px) {
  .controls { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .controls .search { grid-column: span 2; }
  .plots { grid-template-columns: 1fr; }
}