:root {
  --galaxy-bg: #050711;
  --galaxy-panel: rgba(9, 14, 29, 0.88);
  --galaxy-line: rgba(147, 179, 255, 0.16);
  --galaxy-text: #eef4ff;
  --galaxy-muted: #8f9ab4;
  --galaxy-accent: #67e8f9;
  --galaxy-green: #57e3a2;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.galaxy-shell {
  width: min(1240px, calc(100vw - 28px));
  margin-left: 50%;
  transform: translateX(-50%);
  color: var(--galaxy-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.galaxy-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 2rem;
  margin: 0 0 1.5rem;
}

.galaxy-kicker {
  margin: 0 0 0.7rem;
  color: var(--galaxy-green);
  font: 0.72rem/1.4 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.galaxy-hero h1 {
  margin: 0;
  color: #fff;
  font-size: clamp(2.4rem, 7vw, 5.8rem);
  font-weight: 650;
  letter-spacing: -0.065em;
  line-height: 0.92;
}

.galaxy-hero h1 span {
  color: transparent;
  background: linear-gradient(105deg, #fff 5%, #69e6ff 48%, #9f8cff 90%);
  background-clip: text;
  -webkit-background-clip: text;
}

.galaxy-intro {
  max-width: 690px;
  margin: 1.1rem 0 0;
  color: #aeb9d1;
  font-size: clamp(0.98rem, 1.6vw, 1.14rem);
  line-height: 1.7;
}

.galaxy-signal {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 0.55rem;
  min-width: 175px;
  padding: 0.75rem 0.9rem;
  border: 1px solid rgba(87, 227, 162, 0.2);
  border-radius: 12px;
  background: rgba(87, 227, 162, 0.04);
  color: #c9fbe1;
  font: 0.75rem/1.4 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.galaxy-signal small {
  grid-column: 2;
  color: var(--galaxy-muted);
}

.galaxy-signal-dot {
  width: 7px;
  height: 7px;
  margin-top: 0.23rem;
  border-radius: 50%;
  background: var(--galaxy-green);
  box-shadow: 0 0 14px rgba(87, 227, 162, 0.85);
}

.galaxy-controls {
  display: grid;
  grid-template-columns: minmax(230px, 1fr) auto minmax(150px, auto) auto auto;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
}

.galaxy-search {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-width: 0;
  padding: 0 0.9rem;
  border: 1px solid rgba(142, 160, 201, 0.25);
  border-radius: 11px;
  background: #090d19;
  color: #7d89a4;
}

.galaxy-search:focus-within {
  border-color: rgba(103, 232, 249, 0.7);
  box-shadow: 0 0 0 3px rgba(103, 232, 249, 0.08);
}

.galaxy-search svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.galaxy-search input {
  width: 100%;
  min-width: 0;
  height: 42px;
  padding: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--galaxy-text);
  font: inherit;
}

.galaxy-search input::placeholder {
  color: #6f7890;
}

.galaxy-type-filter {
  display: flex;
  padding: 3px;
  border: 1px solid rgba(142, 160, 201, 0.2);
  border-radius: 11px;
  background: #090d19;
}

.galaxy-type-filter button,
.galaxy-action,
.galaxy-theme-filters button {
  border: 0;
  color: #98a4bf;
  background: transparent;
  cursor: pointer;
  font: 0.76rem/1.2 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.galaxy-type-filter button {
  padding: 0 0.7rem;
  border-radius: 8px;
}

.galaxy-type-filter button.is-active {
  color: #071019;
  background: var(--galaxy-accent);
}

.galaxy-topic-select {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
  padding: 0 0.65rem;
  border: 1px solid rgba(142, 160, 201, 0.2);
  border-radius: 11px;
  background: #090d19;
  color: #6f7890;
  font: 0.68rem/1.2 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  text-transform: uppercase;
}

.galaxy-topic-select:focus-within {
  border-color: rgba(103, 232, 249, 0.55);
}

.galaxy-topic-select select {
  width: 100%;
  min-width: 0;
  height: 42px;
  border: 0;
  outline: 0;
  color: #cbd5eb;
  background: #090d19;
  font: 0.76rem/1.2 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  text-transform: none;
}

.galaxy-action {
  min-height: 44px;
  padding: 0 0.85rem;
  border: 1px solid rgba(142, 160, 201, 0.2);
  border-radius: 11px;
  background: #090d19;
  white-space: nowrap;
}

.galaxy-action:hover,
.galaxy-action:focus-visible,
.galaxy-theme-filters button:hover,
.galaxy-theme-filters button:focus-visible {
  color: #fff;
  border-color: rgba(103, 232, 249, 0.55);
}

.galaxy-action:focus-visible,
.galaxy-type-filter button:focus-visible,
.galaxy-theme-filters button:focus-visible,
.galaxy-node-link:focus-visible {
  outline: 2px solid var(--galaxy-accent);
  outline-offset: 3px;
}

.galaxy-theme-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0 0 0.75rem;
}

.galaxy-theme-filters button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.65rem;
  border: 1px solid rgba(142, 160, 201, 0.18);
  border-radius: 999px;
  background: rgba(9, 13, 25, 0.8);
}

.galaxy-theme-filters button::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--theme-color, #fff);
  box-shadow: 0 0 8px var(--theme-color, #fff);
}

.galaxy-theme-filters button.is-active {
  color: #fff;
  background: rgba(103, 232, 249, 0.1);
  border-color: var(--theme-color, var(--galaxy-accent));
}

.galaxy-theme-filters button small {
  min-width: 1.25rem;
  padding: 0.08rem 0.3rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  color: #71809f;
  font-size: 0.62rem;
  text-align: center;
}

.galaxy-stage {
  position: relative;
  min-height: 690px;
  overflow: hidden;
  border: 1px solid rgba(133, 154, 203, 0.22);
  border-radius: 20px;
  background:
    radial-gradient(circle at 50% 48%, rgba(78, 104, 184, 0.12), transparent 26%),
    radial-gradient(circle at 18% 20%, rgba(103, 232, 249, 0.08), transparent 24%),
    radial-gradient(circle at 80% 80%, rgba(159, 140, 255, 0.08), transparent 27%),
    #050711;
  box-shadow: inset 0 0 90px rgba(0, 0, 0, 0.55), 0 24px 70px rgba(0, 0, 0, 0.22);
}

.galaxy-stage::before,
.galaxy-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.galaxy-stage::before {
  opacity: 0.7;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.7) 0 1px, transparent 1.2px),
    radial-gradient(circle, rgba(130, 175, 255, 0.45) 0 1px, transparent 1.3px);
  background-position: 13px 19px, 71px 83px;
  background-size: 113px 127px, 173px 149px;
}

.galaxy-stage::after {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent 12%, transparent 88%, rgba(255, 255, 255, 0.02));
}

.galaxy-map-scroll {
  position: relative;
  z-index: 1;
  height: 690px;
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-color: rgba(103, 232, 249, 0.35) transparent;
  touch-action: none;
  cursor: grab;
}

.galaxy-map-scroll.is-panning {
  cursor: grabbing;
  user-select: none;
}

.galaxy-zoom-controls {
  position: absolute;
  z-index: 4;
  top: 0.65rem;
  right: 0.65rem;
  display: flex;
  overflow: hidden;
  border: 1px solid rgba(142, 160, 201, 0.3);
  border-radius: 9px;
  background: rgba(5, 8, 18, 0.9);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(9px);
}

.galaxy-zoom-controls button {
  min-width: 38px;
  min-height: 38px;
  padding: 0 0.55rem;
  border: 0;
  border-right: 1px solid rgba(142, 160, 201, 0.2);
  color: #dce8ff;
  background: transparent;
  cursor: pointer;
  font: 0.74rem/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.galaxy-zoom-controls button:last-child {
  border-right: 0;
}

.galaxy-zoom-controls button:hover,
.galaxy-zoom-controls button:focus-visible {
  color: #071019;
  background: var(--galaxy-accent);
  outline: 0;
}

.galaxy-map {
  display: block;
  width: 100%;
  height: auto;
  min-height: 690px;
}

.galaxy-orbit {
  fill: none;
  stroke: rgba(130, 154, 212, 0.08);
  stroke-width: 1;
  stroke-dasharray: 3 9;
}

.galaxy-spoke {
  stroke: rgba(130, 154, 212, 0.12);
  stroke-width: 1;
}

.galaxy-edge {
  stroke: var(--node-color);
  stroke-width: 0.75;
  stroke-opacity: 0.18;
  transition: opacity 180ms ease;
}

.galaxy-core,
.galaxy-cluster {
  cursor: pointer;
}

.galaxy-cluster:focus-visible {
  outline: none;
}

.galaxy-cluster:focus-visible .galaxy-cluster-dot {
  stroke: #fff;
  stroke-width: 3;
}

.galaxy-core-halo {
  fill: rgba(103, 232, 249, 0.06);
  stroke: rgba(103, 232, 249, 0.18);
  stroke-width: 1;
}

.galaxy-core-star {
  fill: #f7fdff;
  filter: drop-shadow(0 0 15px rgba(103, 232, 249, 0.85));
}

.galaxy-core-label {
  fill: #dffaff;
  font: 600 12px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.18em;
  text-anchor: middle;
}

.galaxy-cluster-dot {
  fill: var(--theme-color);
  filter: drop-shadow(0 0 9px var(--theme-color));
}

.galaxy-cluster-label {
  fill: #c8d2e9;
  font: 600 12px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.04em;
  text-anchor: middle;
}

.galaxy-cluster-count {
  fill: #65708a;
  font: 10px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  text-anchor: middle;
}

.galaxy-node-link {
  color: inherit;
  cursor: pointer;
}

.galaxy-node {
  fill: var(--node-color);
  stroke: rgba(255, 255, 255, 0.75);
  stroke-width: 0.5;
  transform-box: fill-box;
  transform-origin: center;
  filter: drop-shadow(0 0 5px var(--node-color));
  transition: opacity 180ms ease, transform 180ms ease, filter 180ms ease;
  animation: galaxy-twinkle 4.5s ease-in-out infinite;
  animation-delay: var(--twinkle-delay);
}

.galaxy-node.is-writing {
  stroke-width: 1.15;
  filter: drop-shadow(0 0 9px var(--node-color));
}

.galaxy-node-link:hover .galaxy-node,
.galaxy-node-link:focus .galaxy-node {
  transform: scale(1.65);
  filter: drop-shadow(0 0 14px var(--node-color));
}

.galaxy-node-link.is-hidden,
.galaxy-edge.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.galaxy-cluster.is-dimmed {
  opacity: 0.22;
}

@keyframes galaxy-twinkle {
  0%, 100% { opacity: 0.72; }
  50% { opacity: 1; }
}

.galaxy-tooltip {
  position: absolute;
  z-index: 4;
  width: min(290px, calc(100% - 32px));
  padding: 0.85rem 0.95rem;
  border: 1px solid rgba(103, 232, 249, 0.28);
  border-radius: 12px;
  background: rgba(5, 8, 18, 0.96);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.45);
  pointer-events: none;
  backdrop-filter: blur(12px);
}

.galaxy-tooltip span {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--tooltip-color, var(--galaxy-accent));
  font: 0.66rem/1.3 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.galaxy-tooltip strong {
  display: block;
  color: #fff;
  font-size: 0.98rem;
  line-height: 1.35;
}

.galaxy-tooltip small {
  display: block;
  margin-top: 0.45rem;
  color: #8995af;
  font: 0.7rem/1.4 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.galaxy-empty {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  margin: 0;
  color: var(--galaxy-muted);
  transform: translate(-50%, -50%);
  font: 0.8rem/1.5 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.galaxy-list {
  min-height: 460px;
  padding: 1rem;
  border: 1px solid rgba(133, 154, 203, 0.22);
  border-radius: 18px;
  background: #070a13;
}

.galaxy-list-group + .galaxy-list-group {
  margin-top: 1.35rem;
}

.galaxy-list-group h2 {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.6rem;
  color: var(--group-color);
  font: 0.78rem/1.3 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.galaxy-list-group h2::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 9px currentColor;
}

.galaxy-list-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem;
  margin: 0;
  list-style: none;
}

.galaxy-list-grid li {
  min-width: 0;
}

.galaxy-list-grid a {
  display: block;
  height: 100%;
  padding: 0.7rem 0.75rem;
  border: 1px solid rgba(133, 154, 203, 0.14);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.018);
  color: #cbd5eb;
  font-size: 0.82rem;
  line-height: 1.4;
}

.galaxy-list-grid a:hover,
.galaxy-list-grid a:focus-visible {
  color: #fff;
  border-color: var(--group-color);
  background: rgba(255, 255, 255, 0.035);
}

.galaxy-list-grid small {
  display: block;
  margin-top: 0.35rem;
  color: #65708a;
  font: 0.65rem/1.3 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.galaxy-legend {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 0.8rem 0.25rem 0;
  color: #7f8aa5;
  font: 0.7rem/1.4 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.galaxy-legend div {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.galaxy-legend p {
  margin: 0 0 0 auto;
}

.legend-star {
  display: inline-block;
  border-radius: 50%;
  background: var(--galaxy-accent);
  box-shadow: 0 0 7px var(--galaxy-accent);
}

.legend-writing { width: 9px; height: 9px; }
.legend-note { width: 5px; height: 5px; }

.galaxy-noscript {
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid #27324a;
  border-radius: 12px;
}

@media (max-width: 900px) {
  .galaxy-controls {
    grid-template-columns: 1fr 1fr;
  }

  .galaxy-search {
    grid-column: 1 / -1;
  }

  .galaxy-list-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .galaxy-shell {
    width: calc(100vw - 20px);
  }

  .galaxy-hero {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .galaxy-signal {
    justify-self: start;
  }

  .galaxy-controls {
    grid-template-columns: 1fr 1fr;
  }

  .galaxy-type-filter {
    grid-column: 1 / -1;
    min-height: 42px;
  }

  .galaxy-topic-select {
    grid-column: 1 / -1;
    min-height: 44px;
  }

  .galaxy-type-filter button {
    flex: 1;
  }

  .galaxy-action {
    padding: 0 0.55rem;
    font-size: 0.68rem;
  }

  .galaxy-theme-filters {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 0.35rem;
  }

  .galaxy-theme-filters button {
    flex: 0 0 auto;
  }

  .galaxy-stage,
  .galaxy-map-scroll {
    min-height: 540px;
    height: 540px;
  }

  .galaxy-map {
    width: 860px;
    min-width: 860px;
    min-height: 0;
  }

  .galaxy-list-grid {
    grid-template-columns: 1fr;
  }

  .galaxy-legend {
    flex-wrap: wrap;
  }

  .galaxy-legend p {
    width: 100%;
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .galaxy-node,
  .galaxy-signal-dot {
    animation: none;
    transition: none;
  }
}