:root {
  --comment-color: #FEB53F;
  --thread-color: #FBB04E;
  --pr-color: #FD9610;
  --user-color: #E94000;
  --ticket-color: #BF4827;
  --attachment-color: #BB4D1C;
  --confluence-color: #96503B;
  --knowledge-color: #FFC356;
  --line-color: #FCD98C;
  --diff-color: #58a6ff;
  --codebase-color: #8b949e;
}

/* ── Hero ── */
.context-hero {
  width: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-bg-deep);
}

.context-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 45%, rgba(0,0,0,0.6) 100%);
}

.context-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: clamp(2rem, 5vw, 4rem) clamp(1.5rem, 4vw, 3rem);
}

/* ── Graph Section ── */
.context-graph-section {
  width: 100%;
  background: var(--color-bg);
  border-top: 1px solid var(--color-glass-border);
}

.graph-description {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
  max-width: 800px;
}

.graph-container {
  position: relative;
  width: 100%;
  min-height: 820px;
  margin: 2rem 0;
  border: 1px solid var(--color-glass-border);
  border-radius: 16px;
  background: rgba(255,255,255,0.02);
  overflow: hidden;
}

.connection-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.graph-content {
  position: relative;
  z-index: 10;
  width: 100%;
  height: 100%;
  padding: 1rem;
}

.node {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.2rem;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 500;
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  white-space: nowrap;
  z-index: 10;
  cursor: pointer;
  color: var(--color-text);
}

.node:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.4);
}

.node-front {
  z-index: 1000;
}

.node i {
  font-size: 1.1rem;
}

.comment-node { border: 1px solid var(--comment-color); }
.thread-node { border: 1px solid var(--thread-color); }
.pr-node { border: 1px solid var(--pr-color); }
.user-node { border: 1px solid var(--user-color); }
.ticket-node { border: 1px solid var(--ticket-color); }
.attachment-node { border: 1px solid var(--attachment-color); }
.confluence-node { border: 1px solid var(--confluence-color); }
.knowledge-node { border: 1px solid var(--knowledge-color); }
.diff-node { border: 1px solid var(--diff-color); }
.codebase-node { border: 1px solid var(--codebase-color); }

/* Node positioning */
.node-comment { left: 35%; top: 25%; }
.node-thread { left: 12%; top: 12%; }
.node-knowledge { left: 67%; top: 7%; }
.node-pr { left: 35%; top: 50%; }
.node-diff { left: 65%; top: 40%; }
.node-codebase { left: 65%; top: 55%; }
.node-pr-author { left: 15%; top: 40%; }
.node-reviewer1 { left: 5%; top: 52%; }
.node-reviewer2 { left: 10%; top: 65%; }
.node-ticket { left: 50%; top: 68%; }
.node-ticket-author { left: 75%; top: 80%; }
.node-attachment { left: 50%; top: 85%; }
.node-confluence { left: 20%; top: 80%; }

.uml-comment-node {
  position: absolute;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--knowledge-color);
  color: var(--color-text-secondary);
  padding: 0.8rem 1.2rem;
  border-radius: 0;
  font-size: 0.82rem;
  font-style: italic;
  max-width: 240px;
  text-align: left;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  z-index: 10;
  word-wrap: break-word;
  backdrop-filter: blur(8px);
}

.uml-comment-node::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 18px;
  height: 18px;
  background: linear-gradient(to bottom left, var(--knowledge-color) 0%, var(--knowledge-color) 50%, transparent 50%);
  border-left: 1px solid var(--knowledge-color);
  border-bottom: 1px solid var(--knowledge-color);
}

.uml-comment-knowledge { left: 75%; top: 20%; }

/* ── Explanation Section ── */
.context-explanation-section {
  width: 100%;
  background: var(--color-bg-deep);
  border-top: 1px solid var(--color-glass-border);
}

.explanation-timeline {
  display: flex;
  flex-direction: column;
  margin-top: 2rem;
}

.explanation-timeline-item {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.explanation-timeline-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}

.explanation-timeline-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(253,150,16,0.1);
  border: 2px solid var(--pr-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--pr-color);
  flex-shrink: 0;
  z-index: 1;
}

.explanation-timeline-connector {
  width: 2px;
  flex: 1;
  min-height: 2rem;
  background: linear-gradient(to bottom, var(--pr-color), rgba(253,150,16,0.2));
  margin: 4px 0;
}

.explanation-timeline-body {
  padding: 0.25rem 0 2rem;
}

.explanation-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.6rem;
}

.explanation-card-text {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ── Conclusion Section ── */
.context-conclusion-section {
  width: 100%;
  background: var(--color-bg);
  border-top: 1px solid var(--color-glass-border);
}

.conclusion-box {
  background: rgba(253,150,16,0.06);
  border: 1px solid rgba(253,150,16,0.2);
  border-radius: 16px;
  padding: 2.5rem;
  margin-top: 2rem;
}

.conclusion-box p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
}

.conclusion-box p:last-child {
  margin-bottom: 0;
}

.conclusion-box strong {
  color: var(--comment-color);
}

/* ── Responsive ── */
@media (width <= 768px) {
  .graph-container {
    min-height: 1200px;
  }

  .node {
    font-size: 0.72rem;
    padding: 0.5rem 0.75rem;
    gap: 0.35rem;
  }

  .node i {
    font-size: 0.95rem;
  }

  .node-comment { left: 40%; top: 18%; }
  .node-thread { left: 8%; top: 14%; }
  .node-knowledge { left: 45%; top: 8%; }
  .node-pr { left: 32%; top: 30%; }
  .node-diff { left: 65%; top: 25%; }
  .node-codebase { left: 62%; top: 35%; }
  .node-pr-author { left: 5%; top: 26%; }
  .node-reviewer1 { left: 5%; top: 35%; }
  .node-reviewer2 { left: 5%; top: 40%; }
  .node-ticket { left: 35%; top: 45%; }
  .node-ticket-author { left: 55%; top: 51%; }
  .node-attachment { left: 33%; top: 60%; }
  .node-confluence { left: 3%; top: 55%; }
  .uml-comment-knowledge { left: 55%; top: 1%; max-width: 130px; }

  .explanation-timeline-item {
    gap: 1rem;
  }

  .explanation-timeline-icon {
    width: 42px;
    height: 42px;
    font-size: 1.1rem;
  }
}