:root {
  --bg: #050816;
  --bg-alt: #0b1026;
  --panel: rgba(10, 18, 40, 0.82);
  --line: rgba(80, 255, 199, 0.18);
  --text: #d8fff6;
  --muted: #7fbab2;
  --green: #52ffc7;
  --cyan: #4cd8ff;
  --violet: #9f74ff;
  --danger: #ff6b8a;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(76, 216, 255, 0.12), transparent 36%),
    radial-gradient(circle at right, rgba(159, 116, 255, 0.1), transparent 28%),
    linear-gradient(180deg, #07101e, #040611 68%);
}

.app-shell {
  padding: 24px;
}

.hero,
.panel {
  border: 1px solid rgba(82, 255, 199, 0.12);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero {
  display: flex;
  gap: 20px;
  justify-content: space-between;
  align-items: end;
  padding: 24px;
  border-radius: 24px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 4vw, 4rem);
}

.hero-copy {
  margin-top: 10px;
  max-width: 680px;
  color: var(--muted);
}

.hero-controls {
  display: grid;
  gap: 12px;
  min-width: min(420px, 100%);
}

.field {
  display: grid;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}

.field input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(76, 216, 255, 0.2);
  background: rgba(3, 9, 20, 0.9);
  color: var(--text);
}

.field select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(76, 216, 255, 0.2);
  background: rgba(3, 9, 20, 0.9);
  color: var(--text);
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(320px, 0.95fr);
  gap: 20px;
  margin-top: 20px;
}

.panel {
  border-radius: 22px;
  padding: 18px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
  margin-bottom: 14px;
}

.graph-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.toolbar-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.compact-field {
  min-width: 180px;
}

.toggle,
.toolbar-actions button {
  border: 1px solid rgba(82, 255, 199, 0.14);
  border-radius: 14px;
  background: rgba(6, 11, 26, 0.86);
  color: var(--text);
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  font-size: 13px;
  color: var(--muted);
}

.toggle input {
  accent-color: var(--green);
}

.toolbar-actions button {
  padding: 12px 14px;
  cursor: pointer;
  transition: border-color 120ms ease, transform 120ms ease;
}

.toolbar-actions button:hover {
  border-color: rgba(82, 255, 199, 0.36);
  transform: translateY(-1px);
}

.graph-status {
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 13px;
}

.graph-root {
  position: relative;
  min-height: 680px;
  overflow: hidden;
  border-radius: 18px;
  background:
    linear-gradient(rgba(82, 255, 199, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(82, 255, 199, 0.05) 1px, transparent 1px),
    radial-gradient(circle at center, rgba(76, 216, 255, 0.08), transparent 65%),
    rgba(2, 8, 18, 0.92);
  background-size: 28px 28px, 28px 28px, auto, auto;
}

.graph-root svg {
  display: block;
  width: 100%;
  height: 680px;
}

.graph-root .edge {
  transition: opacity 120ms ease, stroke-width 120ms ease;
}

.graph-root .edge.is-dimmed {
  opacity: 0.24;
}

.graph-root .node {
  cursor: pointer;
}

.graph-root .node-label {
  fill: #d8fff6;
  font-size: 11px;
  text-anchor: middle;
}

.graph-tooltip {
  position: absolute;
  pointer-events: none;
  max-width: 280px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(82, 255, 199, 0.22);
  background: rgba(2, 8, 18, 0.94);
  color: var(--text);
  box-shadow: var(--shadow);
  z-index: 5;
}

.hidden {
  display: none;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  display: inline-block;
}

.dot.active {
  background: var(--green);
  box-shadow: 0 0 18px var(--green);
}

.dot.core {
  background: var(--violet);
  box-shadow: 0 0 18px var(--violet);
}

.dot.idle {
  background: var(--cyan);
  box-shadow: 0 0 14px var(--cyan);
}

.dot.inactive {
  background: #5a6682;
}

.sidebar {
  display: grid;
  gap: 20px;
  align-content: start;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.summary-card,
.leaderboard,
.block-row,
.profile-stat,
.downstream-row {
  border: 1px solid rgba(82, 255, 199, 0.14);
  border-radius: 16px;
  background: rgba(6, 11, 26, 0.86);
}

.summary-card {
  padding: 14px;
}

.summary-card strong {
  display: block;
  font-size: 1.4rem;
  margin-top: 8px;
}

.profile-content {
  display: grid;
  gap: 12px;
}

.profile-content.empty {
  color: var(--muted);
}

.profile-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  background: rgba(82, 255, 199, 0.1);
  color: var(--text);
}

.pill.status-active {
  box-shadow: inset 0 0 0 1px rgba(82, 255, 199, 0.3);
}

.pill.status-idle {
  box-shadow: inset 0 0 0 1px rgba(76, 216, 255, 0.3);
}

.pill.status-inactive {
  box-shadow: inset 0 0 0 1px rgba(127, 186, 178, 0.2);
}

.pill.status-core {
  box-shadow: inset 0 0 0 1px rgba(159, 116, 255, 0.35);
}

.pill.invite-legacy {
  box-shadow: inset 0 0 0 1px rgba(159, 116, 255, 0.28);
}

.pill.invite-unknown,
.pill.invite-ambiguous {
  box-shadow: inset 0 0 0 1px rgba(255, 107, 138, 0.28);
}

.stats-grid,
.downstream-list,
.leaderboards,
.recent-blocks {
  display: grid;
  gap: 10px;
}

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

.profile-stat,
.downstream-row,
.block-row {
  padding: 12px;
}

.leaderboard {
  padding: 14px;
}

.leaderboard h3 {
  margin: 0 0 10px;
  font-size: 15px;
}

.leaderboard ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.leaderboard li,
.block-row,
.downstream-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.muted {
  color: var(--muted);
}

.profile-group {
  display: grid;
  gap: 10px;
}

.ledger-panel {
  margin-top: 20px;
}

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .hero {
    grid-template-columns: 1fr;
    align-items: start;
    display: grid;
  }

  .graph-toolbar {
    align-items: start;
  }
}

@media (max-width: 720px) {
  .app-shell {
    padding: 14px;
  }

  .summary-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .graph-root,
  .graph-root svg {
    min-height: 520px;
    height: 520px;
  }
}