:root {
  --java-graph-bg: #091420;
  --java-graph-bg-soft: #102235;
  --java-graph-panel: rgba(9, 23, 38, 0.84);
  --java-graph-panel-border: rgba(173, 226, 255, 0.18);
  --java-graph-text: #e7f5ff;
  --java-graph-muted: #9ec3d8;
  --java-graph-highlight: #58e5ff;
  --java-graph-accent: #79f5b0;
  --java-graph-shadow: 0 24px 60px rgba(2, 9, 16, 0.45);
}

body.java-graph-layout .main {
  max-width: min(1320px, calc(100vw - 2.2rem));
  padding-left: clamp(0.6rem, 2vw, 1.5rem);
  padding-right: clamp(0.6rem, 2vw, 1.5rem);
}

.java-graph-page {
  color: var(--java-graph-text);
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 8% 10%, rgba(88, 229, 255, 0.22), transparent 34%),
    radial-gradient(circle at 84% 20%, rgba(121, 245, 176, 0.2), transparent 28%),
    radial-gradient(circle at 52% 120%, rgba(255, 166, 77, 0.14), transparent 30%),
    linear-gradient(150deg, var(--java-graph-bg), #07111d 62%, #050d16 100%);
  border-radius: 22px;
  padding: 1.2rem;
  box-shadow: var(--java-graph-shadow);
  overflow: hidden;
  animation: java-graph-fade-in 460ms ease;
}

.java-graph-page h1,
.java-graph-page h2,
.java-graph-page h3,
.java-graph-page h4 {
  color: var(--java-graph-text);
}

.java-graph-hero {
  border: 1px solid var(--java-graph-panel-border);
  border-radius: 18px;
  background: linear-gradient(170deg, rgba(20, 47, 72, 0.8), rgba(10, 23, 37, 0.72));
  padding: 1.3rem;
  margin-bottom: 1rem;
}

.java-graph-kicker {
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: var(--java-graph-highlight);
  margin: 0 0 0.5rem;
}

.java-graph-hero h1 {
  margin: 0;
  font-size: clamp(1.45rem, 3vw, 2.3rem);
  line-height: 1.15;
}

.java-graph-hero p {
  margin: 0.8rem 0 0;
  color: var(--java-graph-muted);
  max-width: 78ch;
}

.java-graph-toolbar {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.java-graph-control {
  display: grid;
  gap: 0.38rem;
  background: var(--java-graph-panel);
  border: 1px solid var(--java-graph-panel-border);
  border-radius: 14px;
  padding: 0.65rem 0.75rem;
}

.java-graph-control span,
.java-graph-control legend {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #98cbe5;
}

.java-graph-control input[type="search"],
.java-graph-control select {
  width: 100%;
  border: 1px solid rgba(173, 226, 255, 0.24);
  background: rgba(5, 16, 29, 0.9);
  color: var(--java-graph-text);
  border-radius: 10px;
  padding: 0.5rem 0.55rem;
  font-family: "Space Grotesk", sans-serif;
}

.java-graph-control input[type="search"]:focus,
.java-graph-control select:focus,
.java-graph-actions button:focus {
  outline: 2px solid rgba(88, 229, 255, 0.75);
  outline-offset: 1px;
}

.java-graph-control-search { grid-column: span 4; }
.java-graph-control-topic { grid-column: span 3; }
.java-graph-control-day { grid-column: span 3; }
.java-graph-control-relations { grid-column: span 2; }

.java-graph-relations {
  border: 1px solid var(--java-graph-panel-border);
  min-width: 0;
}

.java-graph-relations label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.25rem;
  color: var(--java-graph-muted);
  font-size: 0.86rem;
  line-height: 1.35;
}

.java-graph-range-values {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: "JetBrains Mono", monospace;
}

.java-graph-range-inputs {
  display: grid;
  gap: 0.25rem;
}

.java-graph-range-inputs input[type="range"] {
  width: 100%;
}

.java-graph-actions {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
}

.java-graph-actions button {
  border: 1px solid rgba(173, 226, 255, 0.36);
  background: linear-gradient(160deg, rgba(22, 56, 82, 0.9), rgba(8, 21, 33, 0.9));
  color: var(--java-graph-text);
  border-radius: 10px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  min-height: 40px;
  min-width: 132px;
  padding: 0.54rem 0.65rem;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease;
}

.java-graph-actions button:hover {
  border-color: rgba(121, 245, 176, 0.75);
  transform: translateY(-1px);
}

.java-graph-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.82fr) minmax(320px, 0.92fr);
  gap: 0.8rem;
}

.java-graph-stage {
  position: relative;
  border: 1px solid var(--java-graph-panel-border);
  border-radius: 16px;
  background: linear-gradient(160deg, rgba(12, 31, 47, 0.9), rgba(8, 22, 33, 0.85));
  min-height: 72vh;
  overflow: hidden;
}

#java-graph-canvas {
  width: 100%;
  min-height: 72vh;
}

.java-graph-status {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  font-size: 0.78rem;
  font-family: "JetBrains Mono", monospace;
  color: #8bc8ea;
  background: rgba(4, 14, 25, 0.8);
  border: 1px solid rgba(173, 226, 255, 0.2);
  border-radius: 999px;
  padding: 0.28rem 0.62rem;
}

.java-graph-hover {
  position: absolute;
  pointer-events: none;
  top: 1rem;
  left: 1rem;
  z-index: 5;
  width: min(340px, 84%);
  border-radius: 12px;
  border: 1px solid rgba(173, 226, 255, 0.3);
  background: rgba(5, 15, 26, 0.9);
  backdrop-filter: blur(6px);
  padding: 0.65rem;
  font-size: 0.9rem;
  color: var(--java-graph-text);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 120ms ease, transform 120ms ease;
}

.java-graph-hover.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.java-graph-hover h4 {
  margin: 0;
  font-size: 0.95rem;
}

.java-graph-hover p {
  margin: 0.35rem 0 0;
  font-size: 0.82rem;
  color: var(--java-graph-muted);
}

.java-graph-legend {
  position: absolute;
  right: 1rem;
  top: 1rem;
  background: rgba(6, 16, 28, 0.84);
  border: 1px solid rgba(173, 226, 255, 0.24);
  border-radius: 12px;
  padding: 0.7rem;
  min-width: 150px;
}

.java-graph-legend h3 {
  margin: 0;
  font-size: 0.84rem;
}

.java-graph-legend ul {
  list-style: none;
  padding: 0;
  margin: 0.45rem 0 0;
  display: grid;
  gap: 0.4rem;
  font-size: 0.76rem;
  color: var(--java-graph-muted);
}

.legend-line {
  display: inline-block;
  width: 24px;
  height: 2px;
  margin-right: 0.4rem;
  vertical-align: middle;
}

.legend-sequence { background: #66f0d3; }
.legend-reference { background: #ffcc75; }
.legend-topic { background: #9fc1ff; }

.java-graph-inspector {
  border: 1px solid var(--java-graph-panel-border);
  border-radius: 16px;
  background: var(--java-graph-panel);
  padding: 1rem;
  display: grid;
  gap: 0.7rem;
  max-height: 72vh;
  overflow: auto;
}

.java-graph-inspector h2 {
  margin: 0;
  font-size: 1.1rem;
  color: var(--java-graph-text);
}

.java-graph-inspector h3 {
  margin: 0;
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #9fd3ef;
}

.java-graph-inspector p {
  margin: 0;
  color: var(--java-graph-muted);
}

.java-graph-open-link {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 0.35rem;
  width: fit-content;
  border-radius: 999px;
  border: 1px solid rgba(121, 245, 176, 0.5);
  padding: 0.42rem 0.8rem;
  color: #d9ffe9;
  font-weight: 600;
  text-decoration: none;
  background: rgba(26, 94, 68, 0.34);
}

.java-graph-open-link:hover {
  border-color: rgba(121, 245, 176, 0.88);
  background: rgba(31, 113, 81, 0.45);
}

.java-graph-related-list {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.3rem;
}

.java-graph-related-list a {
  color: #9dd9ff;
  text-decoration: none;
}

.java-graph-related-list a:hover {
  text-decoration: underline;
}

.java-graph-fallback {
  margin-top: 1rem;
  border: 1px dashed rgba(173, 226, 255, 0.28);
  border-radius: 14px;
  padding: 0.85rem;
}

body.java-graph-ready .java-graph-fallback {
  display: none;
}

@media (max-width: 1280px) {
  .java-graph-control-search { grid-column: span 6; }
  .java-graph-control-topic { grid-column: span 3; }
  .java-graph-control-day { grid-column: span 3; }
  .java-graph-control-relations { grid-column: 1 / -1; }

  .java-graph-relations {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.45rem 0.85rem;
  }

  .java-graph-relations legend {
    grid-column: 1 / -1;
  }
}

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

  .java-graph-inspector {
    max-height: none;
  }

  .java-graph-control-search,
  .java-graph-control-topic,
  .java-graph-control-day,
  .java-graph-control-relations {
    grid-column: span 6;
  }

  .java-graph-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 760px) {
  .java-graph-page {
    border-radius: 14px;
    padding: 0.7rem;
  }

  .java-graph-toolbar {
    grid-template-columns: 1fr;
  }

  .java-graph-control-search,
  .java-graph-control-topic,
  .java-graph-control-day,
  .java-graph-control-relations,
  .java-graph-actions {
    grid-column: 1 / -1;
  }

  .java-graph-actions {
    justify-content: stretch;
  }

  .java-graph-actions button {
    flex: 1 1 calc(33.333% - 0.34rem);
    min-width: 0;
  }

  .java-graph-relations {
    grid-template-columns: 1fr;
  }

  #java-graph-canvas,
  .java-graph-stage {
    min-height: 62vh;
  }

  .java-graph-legend {
    display: none;
  }
}

@keyframes java-graph-fade-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}