@import url("editorial.css");

/* ============================================================
   TK WEB SOLUTIONS — KNOWLEDGE LIBRARY CONTEXTUAL DIAGRAMS
   css/blog-diagrams.css
   Responsive, high-clarity technical architecture & process flows
   for all 41 chapters of the Digital Knowledge Library.
   ============================================================ */

.tech-diagram-container {
  margin: 32px 0 38px;
  width: 100%;
  clear: both;
}

.tech-diagram-card {
  background: linear-gradient(145deg, #070f24 0%, #0c1836 100%);
  border: 1px solid rgba(26, 86, 255, 0.28);
  border-radius: 16px;
  padding: 26px 28px;
  box-shadow: 0 10px 30px rgba(2, 6, 23, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.05);
  position: relative;
  overflow: hidden;
}

.tech-diagram-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #1a56ff, #00e5ff, #25d366);
}

.tech-diagram-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.tech-diagram-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(26, 86, 255, 0.2);
  border: 1px solid rgba(0, 229, 255, 0.35);
  color: #00e5ff;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 12px;
  border-radius: 20px;
}

.tech-diagram-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.12rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tech-diagram-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
  position: relative;
  margin: 18px 0;
}

/* 2-column comparison layout */
.tech-diagram-vs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 18px 0;
}

.tech-diagram-vs-col {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 16px 18px;
}

.tech-diagram-vs-col.highlight-good {
  background: rgba(37, 211, 102, 0.05);
  border-color: rgba(37, 211, 102, 0.28);
}

.tech-diagram-vs-col.highlight-warn {
  background: rgba(239, 68, 68, 0.05);
  border-color: rgba(239, 68, 68, 0.28);
}

.tech-diagram-vs-title {
  font-family: 'Syne', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tech-diagram-node {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 12px;
  padding: 16px 14px;
  position: relative;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}

.tech-diagram-node:hover {
  background: rgba(26, 86, 255, 0.12);
  border-color: rgba(0, 229, 255, 0.4);
  transform: translateY(-2px);
}

.tech-node-num {
  font-size: 0.68rem;
  font-weight: 800;
  color: #00e5ff;
  letter-spacing: 1px;
  margin-bottom: 6px;
  display: inline-block;
}

.tech-node-icon {
  font-size: 1.35rem;
  margin-bottom: 8px;
  display: inline-block;
}

.tech-node-title {
  font-family: 'Syne', sans-serif;
  font-size: 0.92rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
  line-height: 1.25;
}

.tech-node-desc {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.68);
  line-height: 1.45;
  margin: 0;
  flex-grow: 1;
}

.tech-diagram-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(0, 229, 255, 0.6);
  font-size: 1rem;
  margin: 4px 0;
}

.tech-diagram-footer {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  font-size: 0.83rem;
  color: #93c5fd;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.55;
}

.tech-diagram-footer i {
  color: #00e5ff;
  margin-top: 3px;
  flex-shrink: 0;
}

/* Flowchart pill sequence */
.tech-flow-horizontal {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding: 8px 0 12px;
  scrollbar-width: thin;
}

.tech-flow-pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(26, 86, 255, 0.3);
  border-radius: 10px;
  padding: 10px 14px;
  white-space: nowrap;
  font-size: 0.82rem;
  font-weight: 600;
  color: #e2e8f0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.tech-flow-arrow {
  color: #00e5ff;
  font-size: 0.85rem;
  flex-shrink: 0;
}

@media (max-width: 680px) {
  .tech-diagram-card {
    padding: 18px 16px;
  }
  .tech-diagram-vs-grid {
    grid-template-columns: 1fr;
  }
  .tech-diagram-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}