.rag-intro {
  color: var(--global-text-color-light);
  margin-bottom: var(--spacing-lg);
}

.rag-demo {
  --rag-accent: var(--global-theme-color);
  --rag-accent-dark: var(--global-hover-color);
  --rag-deep: #13294B;
  --rag-bg: #f7fbff;
  --rag-panel-bg: #ffffff;
  --rag-border: rgba(19, 41, 75, 0.12);
  --rag-soft: rgba(75, 156, 211, 0.08);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.rag-query-row { display: flex; flex-direction: column; gap: var(--spacing-sm); }

.rag-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--rag-panel-bg);
  border: 1px solid var(--rag-border);
  border-radius: 999px;
  padding: 4px 4px 4px 44px;
  box-shadow: 0 4px 18px rgba(19, 41, 75, 0.06);
  transition: box-shadow var(--transition-speed), border-color var(--transition-speed);
}

.rag-input-wrap:focus-within {
  border-color: var(--rag-accent);
  box-shadow: 0 6px 24px rgba(75, 156, 211, 0.25);
}

.rag-input-icon { position: absolute; left: 16px; color: var(--rag-accent); font-size: 14px; }

.rag-input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: var(--body-font);
  font-size: var(--font-size-base);
  color: var(--global-text-color);
  padding: 10px 8px;
  outline: none;
  min-width: 0;
}

.rag-run-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--rag-accent), var(--rag-accent-dark));
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 9px 18px;
  font-family: var(--body-font);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
  white-space: nowrap;
}

.rag-run-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(75, 156, 211, 0.4); }
.rag-run-btn:active { transform: translateY(0); }
.rag-run-btn[disabled] { opacity: 0.6; cursor: not-allowed; transform: none; box-shadow: none; }

.rag-suggestions { display: flex; flex-wrap: wrap; gap: 6px; }

.rag-chip {
  background: var(--rag-soft);
  color: var(--rag-accent-dark);
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 12px;
  font-family: var(--body-font);
  cursor: pointer;
  transition: background var(--transition-speed), border-color var(--transition-speed), color var(--transition-speed);
}

.rag-chip:hover { background: #fff; border-color: var(--rag-accent); color: var(--rag-accent-dark); }

.rag-pipeline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 10px 14px;
  background: var(--rag-panel-bg);
  border: 1px solid var(--rag-border);
  border-radius: var(--border-radius);
  overflow-x: auto;
}

.rag-stage {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono-font);
  font-size: 13px;
  color: var(--global-text-color-light);
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
  transition: background var(--transition-speed), color var(--transition-speed), box-shadow var(--transition-speed);
}

.rag-stage-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--rag-soft);
  color: var(--rag-accent-dark);
  font-size: 12px;
  font-weight: 700;
  transition: background var(--transition-speed), color var(--transition-speed), transform var(--transition-speed);
}

.rag-stage.is-active { color: var(--rag-deep); background: var(--rag-soft); }

.rag-stage.is-active .rag-stage-num {
  background: linear-gradient(135deg, var(--rag-accent), var(--rag-accent-dark));
  color: #fff;
  transform: scale(1.1);
  box-shadow: 0 0 0 4px rgba(75, 156, 211, 0.18);
}

.rag-arrow {
  flex: 1;
  height: 2px;
  min-width: 14px;
  background: linear-gradient(90deg, var(--rag-border), var(--rag-border));
  border-radius: 1px;
  position: relative;
  overflow: hidden;
}

.rag-arrow.is-active::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, var(--rag-accent), transparent);
  animation: ragFlow 1.2s linear infinite;
}

@keyframes ragFlow {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.rag-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: var(--spacing-md); }

.rag-panel {
  background: var(--rag-panel-bg);
  border: 1px solid var(--rag-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: 0 2px 10px rgba(19, 41, 75, 0.04);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.rag-panel-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono-font);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--global-text-color-light);
  margin-bottom: var(--spacing-sm);
}

.rag-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--rag-accent);
  box-shadow: 0 0 0 4px rgba(75, 156, 211, 0.18);
}

.rag-space {
  width: 100%;
  height: auto;
  background: radial-gradient(circle at 50% 50%, #ffffff 0%, var(--rag-bg) 100%);
  border-radius: var(--border-radius-sm);
  border: 1px dashed var(--rag-border);
  display: block;
}

.rag-grid-lines line { stroke: rgba(19, 41, 75, 0.06); stroke-width: 1; }

.rag-chunk-node circle {
  fill: #cfe3f4;
  stroke: #8fbedc;
  stroke-width: 1.2;
  transition: fill 0.4s, stroke 0.4s, r 0.4s;
}

.rag-chunk-node text {
  font-family: var(--mono-font);
  font-size: 9px;
  fill: var(--global-text-color-light);
  pointer-events: none;
}

.rag-chunk-node.is-top circle {
  fill: var(--rag-accent);
  stroke: var(--rag-accent-dark);
  filter: drop-shadow(0 0 6px rgba(75, 156, 211, 0.7));
}

.rag-chunk-node.is-top text { fill: var(--rag-deep); font-weight: 700; }

.rag-beams line {
  stroke: var(--rag-accent);
  stroke-width: 1.4;
  stroke-linecap: round;
  opacity: 0;
  stroke-dasharray: 4 4;
  animation: ragBeamIn 0.6s ease forwards, ragDash 6s linear infinite;
}

@keyframes ragBeamIn { to { opacity: 0.65; } }
@keyframes ragDash { to { stroke-dashoffset: -100; } }

.rag-query-node circle:first-child {
  animation: ragPulse 2.4s ease-in-out infinite;
  transform-origin: center;
}

@keyframes ragPulse {
  0%, 100% { transform: scale(1); opacity: 0.9; }
  50%      { transform: scale(1.4); opacity: 0.4; }
}

.rag-chunk-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  max-height: 280px;
}

.rag-chunk-list .rag-empty {
  color: var(--global-text-color-light);
  font-size: var(--font-size-sm);
  font-style: italic;
  padding: var(--spacing-md);
  text-align: center;
  border: 1px dashed var(--rag-border);
  border-radius: var(--border-radius-sm);
}

.rag-chunk-card {
  background: #fff;
  border: 1px solid var(--rag-border);
  border-left: 3px solid var(--rag-accent);
  border-radius: var(--border-radius-sm);
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--global-text-color);
  opacity: 0;
  transform: translateY(8px);
  animation: ragCardIn 0.4s ease forwards;
  cursor: default;
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.rag-chunk-card:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(19, 41, 75, 0.08); }

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

.rag-chunk-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--mono-font);
  font-size: 11px;
  color: var(--global-text-color-light);
  margin-bottom: 4px;
  gap: 8px;
}

.rag-chunk-rank {
  background: var(--rag-soft);
  color: var(--rag-accent-dark);
  padding: 1px 8px;
  border-radius: 999px;
  font-weight: 700;
}

.rag-chunk-score { color: var(--rag-accent-dark); font-weight: 600; }
.rag-chunk-source { color: var(--global-text-color-light); }

.rag-chunk-text mark {
  background: rgba(75, 156, 211, 0.22);
  color: inherit;
  padding: 0 2px;
  border-radius: 3px;
}

.rag-answer {
  background: linear-gradient(135deg, #13294B, #1f3d6b);
  color: #f1f6fb;
  border-radius: var(--border-radius);
  padding: var(--spacing-md) var(--spacing-lg);
  box-shadow: 0 8px 28px rgba(19, 41, 75, 0.18);
  position: relative;
  overflow: hidden;
}

.rag-answer::before {
  content: '';
  position: absolute;
  inset: -50% -20% auto auto;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(75, 156, 211, 0.35), transparent 60%);
  pointer-events: none;
}

.rag-answer-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono-font);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 8px;
}

.rag-answer-header i { color: var(--rag-accent); }

.rag-status {
  margin-left: auto;
  font-size: 11px;
  padding: 2px 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  text-transform: lowercase;
  letter-spacing: 0.4px;
}

.rag-answer-body {
  font-size: var(--font-size-base);
  line-height: 1.7;
  margin: 0;
  color: #f1f6fb;
  position: relative;
}

.rag-cite {
  display: inline-block;
  background: var(--rag-accent);
  color: #fff;
  font-family: var(--mono-font);
  font-size: 11px;
  font-weight: 700;
  padding: 1px 6px;
  margin: 0 2px;
  border-radius: 4px;
  vertical-align: middle;
  cursor: pointer;
  transition: background var(--transition-speed), transform var(--transition-speed);
}

.rag-cite:hover { background: #fff; color: var(--rag-deep); transform: translateY(-1px); }

.rag-caret {
  display: inline-block;
  width: 7px;
  height: 1em;
  background: var(--rag-accent);
  vertical-align: -2px;
  margin-left: 2px;
  animation: ragBlink 1s steps(2) infinite;
}

@keyframes ragBlink { 50% { opacity: 0; } }

.rag-chunk-card.is-hover { box-shadow: 0 0 0 2px var(--rag-accent); }
.rag-chunk-node.is-hover circle { fill: var(--rag-accent-dark); r: 9; }

@media (max-width: 992px) {
  .rag-grid { grid-template-columns: 1fr; }
  .rag-chunk-list { max-height: none; }
}

@media (max-width: 576px) {
  .rag-input-wrap { padding-left: 38px; }
  .rag-input-icon { left: 14px; }
  .rag-run-btn span { display: none; }
  .rag-run-btn { padding: 9px 12px; }
  .rag-pipeline { font-size: 12px; padding: 8px 10px; }
  .rag-stage { padding: 2px 6px; font-size: 12px; }
  .rag-stage-num { width: 20px; height: 20px; font-size: 11px; }
  .rag-answer { padding: var(--spacing-md); }
}