:root {
  --bg: #0b0f1a;
  --bg-2: #121a2b;
  --fg: #e8eefc;
  --muted: #9aa4bf;
  --accent: #f1b74b;
  --accent-2: #49d6c8;
  --accent-3: #ef6c9a;
  --card: rgba(16, 22, 38, 0.85);
  --stroke: rgba(255, 255, 255, 0.08);
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
  --glow: 0 0 24px rgba(241, 183, 75, 0.35);
  --kg-workspace-height: 980px;
  --header-control-height: 40px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--fg);
  background: var(--bg);
  min-height: 100vh;
  scrollbar-color: rgba(154, 164, 191, 0.55) rgba(8, 12, 22, 0.9);
  scrollbar-width: thin;
}

.bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(73, 214, 200, 0.25), transparent 40%),
    radial-gradient(circle at 85% 15%, rgba(241, 183, 75, 0.25), transparent 35%),
    radial-gradient(circle at 60% 85%, rgba(239, 108, 154, 0.25), transparent 45%),
    linear-gradient(160deg, #0b0f1a 0%, #111b30 50%, #0f1729 100%);
  z-index: -2;
}

.hero {
  padding: 64px 8vw 32px;
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 32px;
  align-items: center;
}

.hero-inner h1 {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2.5rem, 4vw, 3.6rem);
  line-height: 1.05;
  margin: 16px 0;
}

.hero-inner p {
  max-width: 600px;
  color: var(--muted);
  font-size: 1.05rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(73, 214, 200, 0.15);
  border: 1px solid rgba(73, 214, 200, 0.35);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

.hero-actions {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

button {
  border: none;
  font: inherit;
  padding: 10px 18px;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

button.small {
  padding: 6px 10px;
  font-size: 0.8rem;
}

button.primary {
  background: var(--accent);
  color: #1c1205;
  box-shadow: var(--glow);
}

button.ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--fg);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.stat {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.stat-clickable {
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-clickable:hover,
.stat-clickable:focus-visible {
  border-color: rgba(241, 183, 75, 0.65);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.35), 0 0 0 2px rgba(241, 183, 75, 0.25);
  transform: translateY(-2px);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--muted);
}

.stat-value {
  font-size: 1.8rem;
  font-weight: 600;
  font-family: "Space Grotesk", sans-serif;
}

.content {
  padding: 16px 8vw 80px;
  display: grid;
  gap: 24px;
}

.panel {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 24px;
  padding: 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.graph-panel {
  position: relative;
}

.graph-panel .panel-header {
  display: grid;
  grid-template-columns: minmax(180px, 0.8fr) auto minmax(260px, 1.2fr);
  align-items: center;
  gap: 16px;
  margin-top: 2px;
  margin-bottom: 14px;
}

.graph-panel .panel-header > :first-child {
  justify-self: start;
}

.graph-panel .panel-header > .graph-header-controls {
  justify-self: start;
}

.graph-panel .panel-header > .right-controls {
  justify-self: start;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.search {
  flex: 1 1 auto;
  display: flex;
  justify-content: flex-end;
}

.mode-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px;
  height: var(--header-control-height);
  box-sizing: border-box;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.mode-toggle button {
  border-radius: 999px;
}

.mode-toggle button.active {
  background: rgba(73, 214, 200, 0.2);
  border: 1px solid rgba(73, 214, 200, 0.6);
  color: #eafffb;
  box-shadow: 0 0 16px rgba(73, 214, 200, 0.35);
}

.graph-header-controls {
  display: inline-flex;
  align-items: center;
  gap: 100px;
  flex-wrap: nowrap;
}

.access-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.05);
  color: var(--fg);
  font-size: 0.8rem;
  white-space: nowrap;
  cursor: pointer;
}

.access-toggle input[type="checkbox"] {
  accent-color: var(--accent-2);
  width: 12px;
  height: 12px;
  margin: 0;
}

.right-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  width: 100%;
  gap: 130px;
  margin-left: 0;
}

.year-range-inline {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0;
  height: auto;
  border: none;
  background: transparent;
}

.year-field {
  display: inline-flex;
  align-items: stretch;
  position: relative;
  border-radius: 10px;
  border: none;
  min-height: 32px;
  background: rgba(8, 12, 22, 0.55);
}

.year-range-inline span {
  color: rgba(232, 238, 252, 0.88);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  min-width: 12px;
  text-align: center;
}

.year-range-inline input[type="number"] {
  appearance: textfield;
  -moz-appearance: textfield;
  width: 82px;
  min-width: 0;
  height: 32px;
  padding: 3px 18px 3px 9px;
  border-radius: 0;
  font-size: 0.84rem;
  text-align: center;
  border: none;
  background: transparent;
}

.year-range-inline input[type="number"]:focus-visible {
  outline: none;
  box-shadow: none;
}

.year-range-inline input[type="number"]::-webkit-outer-spin-button,
.year-range-inline input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.year-stepper {
  position: absolute;
  right: 8px;
  top: 6px;
  bottom: 6px;
  display: grid;
  grid-template-rows: 1fr 1fr;
  width: 11px;
  row-gap: 0;
  background: transparent;
}

.year-step {
  border: 0;
  border-radius: 0;
  padding: 0;
  margin: 0;
  font-size: 8px;
  line-height: 0.8;
  color: rgba(112, 124, 151, 0.9);
  background: transparent;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: color 0.12s ease, transform 0.12s ease;
  pointer-events: auto;
}

.year-step:hover {
  transform: none;
  box-shadow: none;
  background: transparent;
  color: rgba(155, 167, 196, 0.92);
}

.year-step:focus-visible {
  outline: 0;
  background: transparent;
  color: rgba(155, 167, 196, 0.92);
}

.panel h2 {
  font-family: "Space Grotesk", sans-serif;
  margin: 0 0 6px;
}

.panel p {
  margin: 0;
  color: var(--muted);
}

.legend {
  display: flex;
  align-items: center;
  gap: 8px;
}

.legend-item {
  padding: 6px 10px;
  border-radius: 12px;
  font-size: 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.evidence-chip {
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.evidence-chip:hover {
  transform: translateY(-1px);
}

.evidence-chip:focus-visible {
  outline: none;
  border-color: rgba(241, 183, 75, 0.6);
  box-shadow: 0 0 0 2px rgba(241, 183, 75, 0.2);
}

.legend-item.high {
  background: rgba(73, 214, 200, 0.2);
  color: #75f5e5;
}

.legend-item.medium {
  background: rgba(241, 183, 75, 0.2);
  color: #f8c96d;
}

.legend-item.low {
  background: rgba(239, 108, 154, 0.2);
  color: #ff8fb4;
}

.evidence-popover {
  position: absolute;
  z-index: 8;
  width: min(360px, calc(100% - 24px));
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(9, 14, 27, 0.96);
  box-shadow: 0 14px 26px rgba(0, 0, 0, 0.35);
  padding: 10px 12px;
  display: none;
}

.evidence-popover.open {
  display: block;
}

.evidence-popover-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.evidence-popover-header h4 {
  margin: 0;
  font-size: 0.95rem;
  font-family: "Space Grotesk", sans-serif;
}

.evidence-popover-body {
  font-size: 0.84rem;
  color: var(--muted);
  display: grid;
  gap: 6px;
}

.evidence-popover-body strong {
  color: var(--fg);
}

.graph-grid {
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
  height: var(--kg-workspace-height);
}

.graph {
  height: 100%;
  min-height: 0;
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(10, 16, 30, 0.6), rgba(10, 16, 30, 0.2));
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.graph-truncation-note {
  position: absolute;
  left: 12px;
  bottom: 10px;
  font-size: 0.78rem;
  color: #d7e0f8;
  background: rgba(5, 9, 18, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 10px;
  padding: 5px 8px;
  pointer-events: none;
}

.graph-detail {
  border-radius: 18px;
  padding: 16px;
  background: rgba(8, 12, 22, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 12px;
  height: 100%;
  min-height: 0;
}

.detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.detail-header h3 {
  margin: 0 0 4px;
  font-family: "Space Grotesk", sans-serif;
}

.detail-header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.detail-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: var(--fg);
  min-height: 0;
  overflow: hidden;
}

.detail-empty {
  color: var(--muted);
  font-size: 0.95rem;
}

.detail-stat {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--muted);
}

.detail-stat strong {
  color: var(--fg);
}

.detail-list {
  display: grid;
  flex: 1 1 auto;
  min-height: 0;
  gap: 10px;
  align-content: start;
  grid-auto-rows: max-content;
  max-height: none;
  overflow: auto;
  padding-right: 6px;
}

.detail-item {
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(18, 26, 43, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.06);
  display: grid;
  gap: 6px;
}

.detail-item h4 {
  margin: 0;
  font-size: 0.95rem;
  font-family: "Space Grotesk", sans-serif;
}

.detail-item .meta {
  color: var(--muted);
  font-size: 0.8rem;
  display: block;
}

.detail-item .meta a {
  color: #a9f7ef;
  text-decoration: none;
  border-bottom: 1px solid rgba(169, 247, 239, 0.45);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.detail-item .meta a:hover,
.detail-item .meta a:focus-visible {
  color: #d8fffa;
  border-bottom-color: rgba(216, 255, 250, 0.9);
}

.tooltip {
  position: fixed;
  pointer-events: none;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  padding: 8px 12px;
  border-radius: 12px;
  background: rgba(6, 10, 20, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.8rem;
  color: var(--fg);
  z-index: 5;
  max-width: 240px;
}

.tooltip strong {
  color: var(--accent);
}

.graph svg {
  width: 100%;
  height: 100%;
}

.node {
  fill: rgba(18, 26, 43, 0.9);
  stroke: rgba(255, 255, 255, 0.2);
  stroke-width: 1;
  cursor: pointer;
  transition: opacity 120ms ease, stroke-width 120ms ease, filter 120ms ease;
}

.node.hovered,
.node.selected {
  stroke-width: 2.5;
  filter: drop-shadow(0 0 8px rgba(241, 183, 75, 0.4));
}

.node.compound {
  fill: rgba(241, 183, 75, 0.2);
  stroke: rgba(241, 183, 75, 0.8);
}

.node.target {
  fill: rgba(73, 214, 200, 0.2);
  stroke: rgba(73, 214, 200, 0.8);
}

.node-label {
  font-size: 16px;
  font-weight: 700;
  fill: var(--fg);
  cursor: pointer;
  transition: opacity 120ms ease, fill 120ms ease, filter 120ms ease;
}

.node-label.hovered,
.node-label.selected {
  fill: #ffffff;
  font-weight: 700;
}

.edge {
  --edge-width: 3px;
  fill: none;
  stroke: rgba(255, 255, 255, 0.2);
  stroke-width: var(--edge-width);
  stroke-linecap: round;
  stroke-linejoin: round;
  cursor: pointer;
  transition: opacity 120ms ease, stroke-width 120ms ease, filter 120ms ease;
}

.edge.hovered,
.edge.selected {
  stroke-width: calc(var(--edge-width) + 2px);
  filter: drop-shadow(0 0 8px rgba(73, 214, 200, 0.4));
}

.edge.high {
  stroke: #49d6c8;
}

.edge.medium {
  stroke: #f1b74b;
}

.edge.low {
  stroke: #ef6c9a;
}

.edge.muted,
.node.muted,
.node-label.muted {
  opacity: 0.16;
  filter: none;
}

.edge.focus-primary {
  opacity: 1;
  stroke-width: calc(var(--edge-width) + 3px);
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.4));
}

.edge.focus-related {
  opacity: 0.96;
  stroke-width: calc(var(--edge-width) + 1.5px);
}

.node.focus-primary,
.node-label.focus-primary {
  opacity: 1;
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.35));
}

.node.focus-related,
.node-label.focus-related {
  opacity: 1;
}

.filters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--muted);
}

select,
input[type="search"],
input[type="number"] {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(8, 12, 22, 0.9);
  color: var(--fg);
  font-size: 0.95rem;
}

.search input[type="search"] {
  width: min(100%, 640px);
  min-width: 480px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  max-height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 6px;
  align-content: start;
  grid-auto-rows: max-content;
}

.cards-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-height: 320px;
  max-height: 640px;
}

.study-list {
  display: grid;
  gap: 12px;
  max-height: 440px;
  overflow: auto;
  padding-right: 6px;
}

.study-item {
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(10, 16, 30, 0.7);
  padding: 14px;
  display: grid;
  gap: 8px;
}

.study-item h3 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.03rem;
}

.study-item .meta {
  display: grid;
  gap: 4px;
  color: var(--muted);
  font-size: 0.86rem;
}

.study-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items: center;
  color: var(--muted);
  font-size: 0.84rem;
}

.study-links a {
  color: #a9f7ef;
}

.bibliography-panel.focused {
  border-color: rgba(241, 183, 75, 0.5);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35), 0 0 0 2px rgba(241, 183, 75, 0.18);
}

.card {
  background: rgba(12, 18, 32, 0.9);
  border-radius: 18px;
  padding: 21px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  align-content: start;
  gap: 13px;
  animation: fadeUp 0.4s ease;
}

.card-header {
  display: grid;
  align-content: start;
  gap: 10px;
}

.card h3 {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.3;
  min-height: 2.6em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-family: "Space Grotesk", sans-serif;
}

.card .meta {
  color: var(--muted);
  font-size: 0.85rem;
  display: grid;
  gap: 2px;
}

.card .meta a {
  color: #a9f7ef;
  text-decoration: none;
  border-bottom: 1px solid rgba(169, 247, 239, 0.45);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.card .meta a:hover,
.card .meta a:focus-visible {
  color: #d8fffa;
  border-bottom-color: rgba(216, 255, 250, 0.9);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  width: fit-content;
}

.badge.high {
  background: rgba(73, 214, 200, 0.15);
  color: #75f5e5;
}

.badge.medium {
  background: rgba(241, 183, 75, 0.15);
  color: #f8c96d;
}

.badge.low {
  background: rgba(239, 108, 154, 0.15);
  color: #ff8fb4;
}

.footer {
  padding: 24px 8vw 40px;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer a {
  color: var(--accent-2);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid rgba(73, 214, 200, 0.55);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.footer a:hover,
.footer a:focus-visible {
  color: #a9f7ef;
  border-bottom-color: rgba(169, 247, 239, 0.9);
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .graph-panel .panel-header {
    display: flex;
  }

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

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

  .graph-grid {
    grid-template-columns: 1fr;
    height: auto;
  }

  .graph-detail {
    height: auto;
    min-height: 420px;
  }

  .graph {
    height: 560px;
  }

  .cards-panel {
    max-height: none;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 48px 6vw 24px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .search {
    justify-content: stretch;
  }

  .search input[type="search"] {
    width: 100%;
    min-width: 0;
  }
}

*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

*::-webkit-scrollbar-track {
  background: rgba(8, 12, 22, 0.9);
}

*::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(154, 164, 191, 0.65), rgba(73, 214, 200, 0.55));
  border-radius: 999px;
  border: 2px solid rgba(8, 12, 22, 0.9);
}

*::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(173, 183, 204, 0.8), rgba(90, 229, 214, 0.7));
}