/* ==========================================================================
   2. BLUEPRINT-SCHALTPLAN-LAYOUT (R&D-HUB)
   ========================================================================== */

/* Blueprint Bereich Wrapper */
#screen-rdhub {
  background-color: var(--bp-bg);
  background-image: 
    linear-gradient(var(--bp-grid-color) 1.5px, transparent 1.5px),
    linear-gradient(90deg, var(--bp-grid-color) 1.5px, transparent 1.5px),
    linear-gradient(var(--bp-grid-subcolor) 1px, transparent 1px),
    linear-gradient(90deg, var(--bp-grid-subcolor) 1px, transparent 1px);
  background-size: 100px 100px, 100px 100px, 20px 20px, 20px 20px;
  background-position: center center;
  padding: var(--space-8);
  border-radius: 16px;
  border: 2px solid var(--bp-accent-cyan);
  box-shadow: inset 0 0 40px rgba(0, 240, 255, 0.05), var(--bp-card-glow);
  transition: all 0.3s ease;
  z-index: 1;
}

/* Blueprint Vektor-Verbindungslinien SVG */
.blueprint-circuit-svg {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.85;
  filter: drop-shadow(0 0 12px rgba(0, 240, 255, 0.25));
}

.blueprint-circuit-svg path:not(.bp-signal-path) {
  stroke: var(--bp-accent-cyan);
  stroke-width: 2px;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 6px rgba(0, 240, 255, 0.7)) drop-shadow(0 0 14px rgba(0, 240, 255, 0.35));
  transition: stroke 0.3s ease;
}

/* UI-5: Knotenpunkte — CSS-Var loest in fill-Praesentationsattribut nicht auf,
   daher Fuellfarbe per CSS-Regel (Token-Quelle bleibt --bp-accent-cyan). */
.blueprint-circuit-svg circle {
  fill: var(--bp-accent-cyan);
}

/* Glühender animierter Datenfluss auf den Leiterbahnen */
.blueprint-circuit-svg .bp-signal-path {
  stroke: #ffffff;
  stroke-width: 2.5px;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 16, 100;
  filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.9)) drop-shadow(0 0 18px rgba(0, 240, 255, 0.6));
  animation: bpSignalFlow 4s infinite linear;
}

@keyframes bpSignalFlow {
  0% {
    stroke-dashoffset: 0;
    opacity: 0.85;
  }
  50% {
    opacity: 1;
  }
  100% {
    stroke-dashoffset: -116;
    opacity: 0.85;
  }
}

/* Blueprint Technische Karten */
#screen-rdhub .noir-card {
  background-color: var(--bp-card-bg);
  border: 1.5px solid var(--bp-card-border);
  box-shadow: var(--bp-card-glow), inset 0 0 15px rgba(0, 240, 255, 0.05);
  border-radius: 8px;
  position: relative;
  overflow: hidden;
  padding: var(--space-6);
  transition: all 0.3s ease;
  z-index: 2;
}

/* R&D Header Box Anpassung (steht nach .noir-card, damit gleiche Spezifität gewinnt) */
#screen-rdhub > .noir-card:first-of-type {
  background-color: rgba(6, 17, 34, 0.9);
  border: 2px dashed var(--bp-accent-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.1);
  border-radius: 10px;
  z-index: 2;
}

#screen-rdhub > .noir-card:first-of-type h2 {
  font-family: monospace;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 2px;
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

/* CAD Eck-Klammern für technische Karten */
#screen-rdhub .noir-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border: 1px solid rgba(0, 240, 255, 0.2);
  margin: 5px;
  pointer-events: none;
  border-radius: 5px;
  z-index: 1;
}

/* CAD Bemaßungscode unten rechts */
#screen-rdhub .noir-card::after {
  content: "[SYS_REF: " attr(id) "]";
  position: absolute;
  bottom: 6px;
  right: 12px;
  font-family: monospace;
  font-size: var(--text-xs);
  color: var(--bp-accent-cyan);
  opacity: 0.4;
  letter-spacing: 0.8px;
  pointer-events: none;
  z-index: 1;
}

/* Hover-Veredelung Blueprint-Karten */
#screen-rdhub .noir-card:hover {
  border-color: var(--bp-accent-cyan);
  box-shadow: 0px 8px 30px rgba(0, 240, 255, 0.2), inset 0 0 20px rgba(0, 240, 255, 0.1);
  transform: translateY(-2px);
}

/* Technische Typografie im R&D */
#screen-rdhub h3 {
  font-family: monospace;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--bp-accent-cyan);
  border-bottom: 1.5px dashed rgba(0, 240, 255, 0.25);
  padding-bottom: var(--space-2);
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.3);
}

#screen-rdhub h4 {
  font-family: monospace;
  color: var(--bp-accent-cyan);
  letter-spacing: 1px;
}

/* R&D Buttons im Blueprint Design */
#screen-rdhub .glass-button {
  background-color: rgba(6, 17, 34, 0.8);
  color: var(--bp-accent-cyan);
  border: 1.5px solid var(--bp-accent-cyan);
  font-family: monospace;
  text-transform: uppercase;
  font-weight: bold;
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.1);
  border-radius: 4px;
}

#screen-rdhub .glass-button:hover {
  background-color: var(--bp-accent-cyan);
  color: #030814;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
  transform: translate(1px, 1px);
}

#screen-rdhub .glass-button:active {
  transform: translate(2px, 2px);
}

/* LED-Style Fortschrittsbalken */
#screen-rdhub .progress-bar {
  background-color: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.3);
  height: 10px;
  border-radius: 2px;
  box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.5);
  overflow: hidden;
}

#screen-rdhub .progress-fill {
  background: linear-gradient(90deg, var(--bp-accent-blue) 0%, var(--bp-accent-cyan) 100%);
  box-shadow: 0 0 8px var(--bp-accent-cyan);
  border-radius: 0;
}