/* ═══════════════════════════════════════════════════════
   STEINKERNEL SYSTEMS — Architectural System Map
   ═══════════════════════════════════════════════════════ */

.section--system-map {
  position: relative;
  overflow: hidden;
  padding-block: clamp(5.5rem, 4.5rem + 5vw, 10rem);
  background: #0B0F17;
  color: var(--white);
}

/* Subtle architectural grid pattern in background */
.section--system-map::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 50% 40%, rgba(10, 50, 94, 0.28) 0%, transparent 70%),
    linear-gradient(rgba(151, 184, 214, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(151, 184, 214, 0.04) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
  background-position: center center;
  pointer-events: none;
}

.system-map-container {
  position: relative;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
  z-index: 2;
}

/* ─── Header ─── */
.system-map__header {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: var(--space-2xl);
}

.system-map__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #97B8D6;
  margin-bottom: var(--space-sm);
  background: rgba(10, 50, 94, 0.4);
  border: 1px solid rgba(151, 184, 214, 0.25);
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
}

.system-map__eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--navy-ice);
  box-shadow: 0 0 6px var(--navy-ice);
}

.system-map__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--white);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-sm);
}

.system-map__subtitle {
  color: rgba(255, 255, 255, 0.72);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  text-wrap: balance;
  margin-inline: auto;
}

/* ─── Architectural Map Canvas ─── */
.system-map__viewport {
  position: relative;
  background: #0E1424;
  border: 1px solid rgba(151, 184, 214, 0.16);
  border-radius: var(--border-radius-lg);
  padding: clamp(1rem, 0.8rem + 1vw, 2rem);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  overflow: hidden;
}

/* Technical frame markings at corners */
.system-map__viewport::after {
  content: 'SteinKernel Systems Architecture · Reference Topology';
  position: absolute;
  bottom: 12px;
  right: 18px;
  font-family: var(--font-body);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  color: rgba(151, 184, 214, 0.4);
  pointer-events: none;
}

.system-map__svg-wrapper {
  width: 100%;
  position: relative;
}

.system-map__svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

/* ─── Vector Lines & Interconnects ─── */
.map-link {
  stroke: rgba(255, 255, 255, 0.12);
  stroke-width: 1.25px;
  fill: none;
  transition: stroke 0.35s ease, stroke-width 0.35s ease, opacity 0.35s ease;
}

.map-link--core {
  stroke: rgba(142, 172, 223, 0.18);
  stroke-dasharray: 4 4;
}

.map-link.is-dimmed {
  opacity: 0.08;
}

.map-link.is-active {
  stroke-width: 2px;
  opacity: 1 !important;
  stroke-dasharray: 6 6;
  animation: mapSignalFlow 1.6s linear infinite;
}

/* Specific link active colors */
.map-link[data-link-type="physical"].is-active    { stroke: #669BBC; }
.map-link[data-link-type="embedded"].is-active    { stroke: #780000; }
.map-link[data-link-type="network"].is-active     { stroke: #0284C7; }
.map-link[data-link-type="edge"].is-active        { stroke: #FCA311; }
.map-link[data-link-type="software"].is-active    { stroke: #10B981; }
.map-link[data-link-type="intelligence"].is-active{ stroke: #0D9488; }
.map-link[data-link-type="automation"].is-active  { stroke: #C1121F; }
.map-link[data-link-type="infrastructure"].is-active { stroke: #4F46E5; }
.map-link[data-link-type="core"].is-active        { stroke: #669BBC; }

/* ─── Map Nodes (Rounded Architectural Modules) ─── */
.map-node {
  cursor: pointer;
  outline: none;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.3s ease;
  transform-origin: center center;
}

.map-node.is-dimmed {
  opacity: 0.35;
}

.map-node .map-node__bg {
  fill: #0E1424;
  stroke-width: 1.5px;
  rx: 18px;
  ry: 18px;
  transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.map-node--core .map-node__bg {
  fill: #0F1A30;
  rx: 22px;
  ry: 22px;
}

/* Hide straight top lines so rounded modular border outline carries the accent */
.map-node__accent {
  display: none;
}

.map-node__tag {
  font-family: var(--font-body);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.04em;
  fill: rgba(255, 255, 255, 0.65);
}

.map-node__title {
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.01em;
  fill: #FFFFFF;
}

.map-node__meta {
  font-family: var(--font-body);
  font-size: 9.5px;
  fill: rgba(255, 255, 255, 0.55);
}

.map-node__indicator {
  transition: all 0.3s ease;
}

/* ─── Persistent Node Colored Borders (Normal State) ─── */
.map-node[data-node="physical"] .map-node__bg       { stroke: rgba(102, 155, 188, 0.55); }
.map-node[data-node="embedded"] .map-node__bg       { stroke: rgba(120, 0, 0, 0.65); }
.map-node[data-node="network"] .map-node__bg        { stroke: rgba(2, 132, 199, 0.6); }
.map-node[data-node="edge"] .map-node__bg           { stroke: rgba(252, 163, 17, 0.6); }
.map-node[data-node="core"] .map-node__bg           { stroke: rgba(102, 155, 188, 0.6); }
.map-node[data-node="software"] .map-node__bg       { stroke: rgba(16, 185, 129, 0.6); }
.map-node[data-node="intelligence"] .map-node__bg   { stroke: rgba(13, 148, 136, 0.6); }
.map-node[data-node="automation"] .map-node__bg     { stroke: rgba(193, 18, 31, 0.65); }
.map-node[data-node="infrastructure"] .map-node__bg { stroke: rgba(79, 70, 229, 0.6); }

/* Node Indicators */
.map-node[data-node="physical"] .map-node__indicator       { fill: #669BBC; }
.map-node[data-node="embedded"] .map-node__indicator       { fill: #780000; }
.map-node[data-node="network"] .map-node__indicator        { fill: #0284C7; }
.map-node[data-node="edge"] .map-node__indicator           { fill: #FCA311; }
.map-node[data-node="core"] .map-node__indicator           { fill: #669BBC; }
.map-node[data-node="software"] .map-node__indicator       { fill: #10B981; }
.map-node[data-node="intelligence"] .map-node__indicator   { fill: #0D9488; }
.map-node[data-node="automation"] .map-node__indicator     { fill: #C1121F; }
.map-node[data-node="infrastructure"] .map-node__indicator { fill: #4F46E5; }

/* ─── Node Hover & Active States ─── */
.map-node:hover,
.map-node:focus-visible,
.map-node.is-selected {
  transform: translateY(-2px);
}

.map-node:hover .map-node__bg,
.map-node:focus-visible .map-node__bg,
.map-node.is-selected .map-node__bg {
  fill: #141E34;
  stroke-width: 2.25px;
}

.map-node:hover .map-node__indicator,
.map-node:focus-visible .map-node__indicator,
.map-node.is-selected .map-node__indicator {
  transform: scale(1.35);
  transform-origin: center center;
}

/* Category Specific Hover / Active Accents */
.map-node[data-node="physical"]:hover .map-node__bg,
.map-node[data-node="physical"].is-selected .map-node__bg {
  stroke: #669BBC;
  filter: drop-shadow(0 4px 14px rgba(102, 155, 188, 0.28));
}

.map-node[data-node="embedded"]:hover .map-node__bg,
.map-node[data-node="embedded"].is-selected .map-node__bg {
  stroke: #780000;
  filter: drop-shadow(0 4px 14px rgba(120, 0, 0, 0.35));
}

.map-node[data-node="network"]:hover .map-node__bg,
.map-node[data-node="network"].is-selected .map-node__bg {
  stroke: #0284C7;
  filter: drop-shadow(0 4px 14px rgba(2, 132, 199, 0.28));
}

.map-node[data-node="edge"]:hover .map-node__bg,
.map-node[data-node="edge"].is-selected .map-node__bg {
  stroke: #FCA311;
  filter: drop-shadow(0 4px 14px rgba(252, 163, 17, 0.28));
}

.map-node[data-node="core"]:hover .map-node__bg,
.map-node[data-node="core"].is-selected .map-node__bg {
  stroke: #669BBC;
  filter: drop-shadow(0 4px 18px rgba(102, 155, 188, 0.32));
}

.map-node[data-node="software"]:hover .map-node__bg,
.map-node[data-node="software"].is-selected .map-node__bg {
  stroke: #10B981;
  filter: drop-shadow(0 4px 14px rgba(16, 185, 129, 0.28));
}

.map-node[data-node="intelligence"]:hover .map-node__bg,
.map-node[data-node="intelligence"].is-selected .map-node__bg {
  stroke: #0D9488;
  filter: drop-shadow(0 4px 14px rgba(13, 148, 136, 0.28));
}

.map-node[data-node="automation"]:hover .map-node__bg,
.map-node[data-node="automation"].is-selected .map-node__bg {
  stroke: #C1121F;
  filter: drop-shadow(0 4px 14px rgba(193, 18, 31, 0.35));
}

.map-node[data-node="infrastructure"]:hover .map-node__bg,
.map-node[data-node="infrastructure"].is-selected .map-node__bg {
  stroke: #4F46E5;
  filter: drop-shadow(0 4px 14px rgba(79, 70, 229, 0.28));
}

/* Geometrically Circular Central Core Hub */
.map-node--core .map-node__bg {
  fill: #0F1A30;
  stroke: rgba(102, 155, 188, 0.65);
  stroke-width: 2px;
}

.map-node--core:hover .map-node__bg,
.map-node--core:focus-visible .map-node__bg,
.map-node--core.is-selected .map-node__bg {
  fill: #142442;
  stroke: #669BBC;
  stroke-width: 2.5px;
  filter: drop-shadow(0 0 20px rgba(102, 155, 188, 0.4));
}

.map-node__core-ring {
  animation: coreRingRotate 24s linear infinite;
  transform-origin: 550px 310px;
}

@keyframes coreRingRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.map-node--core .map-node__title {
  font-size: 15px;
  font-weight: 700;
  fill: #FFFFFF;
}

.map-node--core .map-node__tag {
  fill: #A5C4E8;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

/* ─── Architectural Inspector Card (Accent Wraps Entire Border) ─── */
.system-map__inspector {
  --node-accent: #669BBC;
  position: relative;
  margin-top: var(--space-lg);
  background: #0B1324;
  /* Entire border uses the active node's accent color */
  border: 1.5px solid var(--node-accent);
  border-radius: var(--border-radius-md);
  padding: var(--space-lg) var(--space-xl);
  display: grid;
  grid-template-columns: 290px 1fr;
  gap: var(--space-xl);
  align-items: center;
  box-shadow: 
    0 16px 40px rgba(0, 0, 0, 0.5), 
    0 0 24px color-mix(in srgb, var(--node-accent) 22%, transparent);
  transition: border-color 0.4s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  animation: inspectorPerimeterPulse 4s ease-in-out infinite;
  overflow: hidden;
}

/* Subtle moving telemetry highlight along perimeter */
.system-map__inspector::before {
  content: '';
  position: absolute;
  top: 0;
  left: -60%;
  width: 50%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--node-accent), #FFFFFF, var(--node-accent), transparent);
  animation: inspectorBeam 4.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
  pointer-events: none;
  z-index: 2;
}

@keyframes inspectorBeam {
  0% { left: -50%; }
  60%, 100% { left: 130%; }
}

@keyframes inspectorPerimeterPulse {
  0%, 100% {
    border-color: var(--node-accent);
    box-shadow: 
      0 16px 40px rgba(0, 0, 0, 0.5), 
      0 0 18px color-mix(in srgb, var(--node-accent) 18%, transparent);
  }
  50% {
    border-color: color-mix(in srgb, var(--node-accent) 80%, #FFFFFF);
    box-shadow: 
      0 16px 44px rgba(0, 0, 0, 0.55), 
      0 0 30px color-mix(in srgb, var(--node-accent) 30%, transparent);
  }
}

.inspector__meta-col {
  border-right: 1px solid rgba(151, 184, 214, 0.12);
  padding-right: var(--space-lg);
}

.inspector__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--node-accent);
  background: color-mix(in srgb, var(--node-accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--node-accent) 26%, transparent);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  margin-bottom: 0.5rem;
  transition: all var(--duration-normal) var(--ease-out);
}

.inspector__badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  box-shadow: 0 0 8px currentColor;
  flex-shrink: 0;
}

.inspector__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--white);
  letter-spacing: var(--tracking-tight);
  margin-bottom: 0.35rem;
}

.inspector__title::after {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background-color: var(--node-accent);
  margin-top: 6px;
  border-radius: 1px;
  transition: background-color var(--duration-fast) var(--ease-out);
}

.inspector__classification {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.4;
}

.inspector__content-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.inspector__description {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.9375rem;
  line-height: 1.6;
  max-width: 75ch;
}

.inspector__sub-systems {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex-wrap: wrap;
  margin-top: 0.25rem;
}

.inspector__sub-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.45);
  margin-right: 0.25rem;
}

.inspector__chip {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.3rem 0.75rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.9);
  border: 1px solid color-mix(in srgb, var(--node-accent) 22%, rgba(255, 255, 255, 0.08));
  transition: border-color var(--duration-fast) var(--ease-out), background-color var(--duration-fast) var(--ease-out);
}

/* ─── Bottom Engineering Annotation ─── */
.system-map__annotation {
  margin-top: var(--space-2xl);
  text-align: center;
}

.system-map__annotation p {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.6);
  font-style: italic;
  max-width: 58ch;
  margin-inline: auto;
  line-height: var(--leading-relaxed);
}

/* ─── Responsive Matrix for Tablets / Mobile ─── */
@media (max-width: 900px) {
  .system-map__inspector {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    padding: var(--space-md);
  }

  .inspector__meta-col {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-right: 0;
    padding-bottom: var(--space-sm);
  }

  .system-map__viewport::after {
    display: none;
  }
}

@media (max-width: 640px) {
  .system-map__svg {
    min-width: 680px;
  }

  .system-map__svg-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--space-sm);
  }
}