/* ABOUTME: Shared styling for the constellation star-map pages (index + cluster drill-downs). */
/* ABOUTME: Defines canvas, node labels, tooltip, legend, and footer chrome reused across all pages. */
* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: #030308;
}

canvas { display: block; cursor: crosshair; }

#ui { position: fixed; inset: 0; pointer-events: none; }

.lbl {
  position: absolute;
  transform: translate(-50%, 0);
  font-family: 'Segoe UI', system-ui, monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  pointer-events: none;
  white-space: nowrap;
  text-align: center;
  transition: opacity 0.25s;
}

.badge {
  display: block;
  margin: 3px auto 0;
  padding: 1px 5px;
  border-radius: 2px;
  font-size: 7px;
  font-weight: 700;
  letter-spacing: 0.1em;
  width: fit-content;
}

.badge-tools  { color: #60a5fa; border: 1px solid rgba(96,165,250,0.4); background: rgba(96,165,250,0.08); }
.badge-oss    { color: #4ade80; border: 1px solid rgba(74,222,128,0.4); background: rgba(74,222,128,0.08); }
.badge-writing{ color: #c084fc; border: 1px solid rgba(192,132,252,0.4); background: rgba(192,132,252,0.08); }

#tooltip {
  position: fixed;
  display: none;
  pointer-events: none;
  background: rgba(6,8,20,0.92);
  border: 1px solid rgba(120,140,200,0.22);
  border-radius: 6px;
  padding: 9px 14px;
  max-width: 260px;
  backdrop-filter: blur(10px);
  z-index: 10;
}
#tt-name { font-family: 'Segoe UI', system-ui, sans-serif; font-size: 12px; font-weight: 600; color: rgba(220,232,255,0.95); margin-bottom: 4px; }
#tt-desc { font-family: 'Segoe UI', system-ui, sans-serif; font-size: 10px; color: rgba(140,165,220,0.70); line-height: 1.5; }

#page-title {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.22);
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 10px;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}

#legend {
  position: fixed;
  top: 52px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 20px;
  pointer-events: none;
  user-select: none;
}
.leg {
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 5px;
}
.leg-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }

#back-link {
  position: fixed;
  top: 24px;
  left: 24px;
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(220,232,255,0.55);
  text-decoration: none;
  z-index: 20;
  transition: color 0.2s;
}
#back-link:hover { color: rgba(220,232,255,0.9); }

footer {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  text-align: center;
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 0.75rem;
  color: rgba(168,196,224,0.6);
  padding: 0.6rem 0.5rem;
  border-top: 1px solid rgba(30,58,95,0.4);
  background: rgba(7,16,32,0.7);
  backdrop-filter: blur(6px);
  pointer-events: auto;
  z-index: 20;
}
footer a { color: rgba(168,196,224,0.8); text-decoration: none; }
footer a:hover { color: #a8c4e0; }

@media (max-width: 768px) {
  footer { font-size: 0.55rem; padding: 0.4rem 0.5rem; }
  .lbl { font-size: 7px; letter-spacing: 0.1em; }
  .badge { font-size: 5px; padding: 1px 3px; }
  #page-title { font-size: 7px; letter-spacing: 0.25em; }
  #legend { gap: 10px; top: 42px; }
  .leg { font-size: 7px; }
  .leg-dot { width: 5px; height: 5px; }
  #back-link { top: 16px; left: 16px; font-size: 9px; }
}