/* Concepts tab specific */
.concepts-section-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  margin: 2.4rem 0 1.1rem;
  display: flex;
  align-items: center;
  gap: .65rem;
  border-left: 3px solid var(--teal);
  padding-left: .9rem;
  letter-spacing: -0.025em;
  color: var(--text);
}
.concept-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}
.concept-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.3rem;
  cursor: pointer;
  transition: all 0.28s cubic-bezier(0.16,1,0.3,1);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(14px);
  box-shadow: 0 2px 16px rgba(0,0,0,0.2), inset 0 1px 0 rgba(255,255,255,0.04);
}
.concept-card:hover {
  transform: translateY(-6px);
  border-color: var(--border);
  box-shadow: 0 16px 48px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.07);
}
.cc-icon {
  font-size: 2.2rem;
  margin-bottom: .75rem;
  display: block;
}
.cc-name {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: .4rem;
  letter-spacing: -0.025em;
  font-family: var(--font-display);
}
.cc-tagline {
  font-size: .83rem;
  color: var(--text-dim);
  margin-bottom: .75rem;
  line-height: 1.55;
}
.cc-badge {
  font-size: .7rem;
  border-radius: 999px;
  padding: .28rem .75rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.flow-diagram {
  background: rgba(0,0,0,0.22);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.6rem;
  overflow-x: auto;
  margin: 1.2rem 0;
}
.flow-row {
  display: flex;
  align-items: center;
  gap: .65rem;
  min-width: max-content;
}
.flow-node {
  text-align: center;
  flex-shrink: 0;
}
.flow-sub {
  font-size: .7rem;
  color: var(--text-muted);
  margin-top: .3rem;
  max-width: 100px;
}
.flow-box {
  border-radius: 11px;
  padding: .65rem 1.1rem;
  font-size: .8rem;
  font-weight: 600;
  white-space: nowrap;
  border: 1.5px solid;
  font-family: var(--font-body);
}
.fc-blue {
  background: rgba(59,130,246,.12);
  border-color: rgba(59,130,246,.4);
  color: #93c5fd;
}
.fc-purple {
  background: rgba(168,85,247,.12);
  border-color: rgba(168,85,247,.4);
  color: #c4b5fd;
}
.fc-teal {
  background: rgba(0,229,213,.1);
  border-color: var(--border);
  color: var(--teal);
}
.fc-gold {
  background: rgba(255,204,68,.1);
  border-color: rgba(255,204,68,.3);
  color: var(--gold);
}
.fc-green {
  background: rgba(52,211,153,.1);
  border-color: rgba(52,211,153,.35);
  color: #6ee7b7;
}
.fc-red {
  background: rgba(239,68,68,.1);
  border-color: rgba(239,68,68,.3);
  color: #fca5a5;
}
.flow-arrow {
  font-size: 1.1rem;
  color: var(--text-muted);
  flex-shrink: 0;
}
.rag-arch {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  margin: 1.2rem 0;
}
.rag-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 0;
  background: rgba(0,0,0,.3);
}
.rag-label {
  padding: .7rem .8rem;
  background: rgba(0,0,0,.3);
  font-size: .75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  color: var(--text-dim);
}
.rag-content {
  padding: .7rem .8rem;
  font-size: .82rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
}
.rag-pill {
  background: rgba(59,130,246,.1);
  border: 1px solid rgba(59,130,246,.25);
  border-radius: 6px;
  padding: .2rem .55rem;
  font-size: .73rem;
  color: #93c5fd;
}
.rag-pill.teal {
  background: rgba(0,212,200,.1);
  border-color: var(--border);
  color: var(--teal);
}
.mcp-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: 1.2rem;
}
.mcp-col {
  padding: 1.1rem 1.2rem;
}
.mcp-title {
  font-size: .78rem;
  font-weight: 700;
  color: var(--teal);
  margin-bottom: .75rem;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.mcp-divider {
  width: 1px;
  background: var(--border-subtle);
}
.mcp-item {
  display: flex;
  align-items: flex-start;
  gap: .5rem;
  font-size: .83rem;
  color: var(--text-dim);
  margin-bottom: .55rem;
  line-height: 1.5;
}
.mcp-item-icon {
  font-size: .9rem;
  flex-shrink: 0;
  margin-top: .05rem;
}
@media (max-width: 580px) {
  .mcp-grid {
    grid-template-columns: 1fr;
  }
  .mcp-divider {
    height: 1px;
    width: 100%;
  }
}
.compare-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: .84rem;
  margin: 1.2rem 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}
.compare-table th {
  background: rgba(0,0,0,0.4);
  padding: .8rem 1rem;
  font-weight: 700;
  color: var(--teal);
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-display);
  font-size: .8rem;
  letter-spacing: 0.015em;
  text-align: left;
}
.compare-table td {
  padding: .8rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-dim);
  vertical-align: top;
  line-height: 1.6;
}
.compare-table tr:last-child td {
  border-bottom: none;
}
.compare-table tr:nth-child(even) td {
  background: rgba(0,0,0,0.08);
}
.compare-table .highlight {
  color: var(--teal);
  font-weight: 700;
}