:root {
  --r502-gold: #f1cf69;
  --r502-cyan: #72ddff;
  --r502-green: #6df2a5;
}

.r502-telescope-suite {
  margin: .8rem 0 1rem;
  border: 1px solid rgba(241, 207, 105, .62);
  background: linear-gradient(145deg, rgba(6, 18, 25, .98), rgba(1, 7, 11, .98));
  box-shadow: 0 18px 42px rgba(0, 0, 0, .28);
}
.r502-telescope-suite > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .8rem .9rem;
  cursor: pointer;
  color: var(--r502-gold);
  list-style: none;
}
.r502-telescope-suite > summary::-webkit-details-marker { display: none; }
.r502-telescope-suite > summary span:first-child { display: grid; gap: .15rem; }
.r502-telescope-suite > summary small { color: #9db4bd; font-weight: 500; }
.r502-summary-state { color: var(--r502-cyan); font: 700 .65rem/1 ui-monospace, Consolas, monospace; }
.r502-telescope-body { padding: .15rem .9rem .9rem; }
.r502-telescope-head { display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: end; }
.r502-telescope-head h3 { margin: .15rem 0 .7rem; }
.r502-source-clock { display: grid; gap: .12rem; min-width: 15rem; padding: .5rem .65rem; border: 1px solid rgba(114,221,255,.28); text-align: right; }
.r502-source-clock b { color: var(--r502-cyan); }
.r502-source-clock small { color: #91a7b0; }
.r502-refresh-note,
.r502-live-strip {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .55rem;
  padding: .48rem .65rem;
  border: 1px solid rgba(114,221,255,.24);
  background: rgba(2, 13, 18, .9);
  color: #b8cbd3;
  font-size: .7rem;
}
.r502-refresh-note { margin: .55rem 0; }
.r502-live-strip { margin: .5rem 0 .75rem; }
.r502-live-strip strong,
.r502-refresh-note strong { color: var(--r502-green); }
.r502-live-strip small { margin-left: auto; color: #91a7b0; }
.r502-live-dot { width: .58rem; height: .58rem; border-radius: 50%; background: var(--r502-green); box-shadow: 0 0 12px rgba(109,242,165,.8); animation: r502Pulse 1.5s ease-in-out infinite; }
.r502-telescope-table { min-width: 1480px; }
.r502-telescope-table td { vertical-align: top; }
.r502-telescope-table td small { display: block; margin-top: .2rem; color: #8fa5ae; max-width: 26rem; }
.r502-telescope-table .btn { min-height: 2rem; padding: .4rem .55rem; white-space: nowrap; }
.r502-status { display: inline-flex; padding: .22rem .36rem; border: 1px solid currentColor; font-weight: 700; }
.r502-status.active { color: var(--r502-green); }
.r502-status.watch { color: var(--r502-gold); }

@keyframes r502Pulse { 50% { opacity: .45; transform: scale(.82); } }
@media (max-width: 760px) {
  .r502-telescope-head { grid-template-columns: 1fr; }
  .r502-source-clock { min-width: 0; text-align: left; }
  .r502-live-strip small { width: 100%; margin-left: 1.1rem; }
}
@media (prefers-reduced-motion: reduce) { .r502-live-dot { animation: none; } }

/* R50.4 start-view polish: closed chapters remain useful as compact update tabs. */
main > section.r50-deferred > .r43-section-bar {
  min-height: 3rem;
  border-color: rgba(241, 207, 105, .34);
  background: linear-gradient(90deg, rgba(5, 13, 18, .98), rgba(8, 18, 24, .96));
}
main > section.r50-deferred > .r43-section-bar small {
  color: #b8c7cc;
  font: 650 .68rem/1.25 ui-monospace, Consolas, monospace;
  letter-spacing: .015em;
}
main > section.r50-priority > .r43-section-bar {
  border-color: rgba(241, 207, 105, .68);
  box-shadow: 0 0 18px rgba(241, 207, 105, .07);
}

.planet-urgency-brief {
  margin: .75rem 0 1rem;
  padding: clamp(.8rem, 1.4vw, 1.25rem);
  border: 1px solid rgba(240, 190, 72, .76);
  border-left: .35rem solid #efbd3f;
  background: linear-gradient(120deg, rgba(45, 24, 4, .92), rgba(5, 15, 20, .96));
  box-shadow: 0 12px 32px rgba(0, 0, 0, .28);
}
.planet-urgency-brief > strong {
  display: block;
  color: #ffe08a;
  font-size: clamp(1.1rem, 1.65vw, 1.65rem);
  line-height: 1.14;
  letter-spacing: .02em;
}
.planet-urgency-brief p { margin: .55rem 0 0; color: #d7e2e6; max-width: 120rem; }
.planet-urgency-brief #planetMinimumInvestment { color: #8ef0b7; font-weight: 750; }
.planet-urgency-sources { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: .7rem; }
.planet-urgency-sources a { padding: .42rem .58rem; border: 1px solid rgba(114,221,255,.36); color: #8ee8ff; }

.scientific-reference-grid > details[open] { grid-column: 1 / -1; border-color: rgba(241,207,105,.72); }
.scientific-reference-grid > details > summary { font-size: clamp(.9rem, 1vw, 1.05rem); cursor: pointer; }
.scientific-reference-grid > details[open] > summary { color: #ffe28a; }