/* ==========================================================================
   DATA PILL ACADEMY — ARCHITECTURAL DATA PIPELINE CENTERPIECE
   Concept: Modern technical flow from Raw Data to Business Intelligence
   Style: Architectural, luminous, sleek, zero-dashboard clutter
   ========================================================================== */

.dp-pipeline-container {
  position: relative;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Deep Ambient Atmosphere behind the architecture */
.dp-pipeline-atmosphere {
  position: absolute;
  width: 420px;
  height: 480px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(139, 92, 246, 0.14) 0%, rgba(59, 130, 246, 0.06) 45%, transparent 70%);
  filter: blur(50px);
  pointer-events: none;
  z-index: 0;
}

/* The Central Architecture Flow System */
.dp-pipeline-architecture {
  position: relative;
  z-index: 1;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

/* Central SVG Connecting Spine */
.dp-pipeline-svg-spine {
  position: absolute;
  top: 30px;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: calc(100% - 60px);
  z-index: 1;
  pointer-events: none;
}

.dp-spine-track {
  width: 2px;
  height: 100%;
  margin: 0 auto;
  background: linear-gradient(180deg, 
    rgba(148, 163, 184, 0.2) 0%, 
    rgba(59, 130, 246, 0.35) 25%, 
    rgba(139, 92, 246, 0.45) 50%, 
    rgba(6, 182, 212, 0.45) 75%, 
    rgba(245, 158, 11, 0.4) 100%
  );
  position: relative;
}

.dp-spine-pulse {
  position: absolute;
  top: 0;
  left: -2px;
  width: 6px;
  height: 24px;
  border-radius: 3px;
  background: linear-gradient(180deg, #FFFFFF, var(--dp-primary));
  box-shadow: 0 0 12px #A78BFA, 0 0 4px #FFFFFF;
  animation: dp-flow-spine 3.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

/* Architectural Flow Nodes */
.dp-node-card {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  max-width: 380px;
  padding: 14px 18px;
  background: rgba(14, 17, 26, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  margin: 8px 0;
}

.dp-node-card:hover {
  transform: translateY(-2px) scale(1.02);
  border-color: rgba(139, 92, 246, 0.4);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.6), 0 0 20px rgba(139, 92, 246, 0.15);
  background: rgba(18, 22, 34, 0.95);
}

/* Node Icon Glyph */
.dp-node-glyph {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
  position: relative;
}

.dp-node-glyph::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: inherit;
  opacity: 0.2;
  filter: blur(6px);
  z-index: -1;
}

/* Node Specific Theming */
.dp-node-raw .dp-node-glyph {
  background: rgba(148, 163, 184, 0.1);
  border: 1px solid rgba(148, 163, 184, 0.25);
  color: #CBD5E1;
}

.dp-node-sql .dp-node-glyph {
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.35);
  color: #60A5FA;
}

.dp-node-etl .dp-node-glyph {
  background: rgba(139, 92, 246, 0.14);
  border: 1px solid rgba(139, 92, 246, 0.4);
  color: #C084FC;
}

.dp-node-dwh .dp-node-glyph {
  background: rgba(6, 182, 212, 0.14);
  border: 1px solid rgba(6, 182, 212, 0.4);
  color: #22D3EE;
}

.dp-node-bi .dp-node-glyph {
  background: rgba(245, 158, 11, 0.14);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: #FBBF24;
}

/* Node Text Information */
.dp-node-details {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.dp-node-title {
  font-family: var(--dp-font-en);
  font-size: 0.9375rem;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.dp-node-subtitle {
  font-family: var(--dp-font-mono);
  font-size: 0.6875rem;
  color: #94A3B8;
  margin-top: 2px;
}

/* Subtle Stage Step Indicator */
.dp-node-step {
  font-family: var(--dp-font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  color: #64748B;
  padding: 2px 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 6px;
}

/* ==========================================================================
   INTEGRATED ECOSYSTEM NODES (Clean floating chips)
   ========================================================================== */

.dp-chip-cloud {
  position: absolute;
  top: 15%;
  right: -24px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(14, 17, 26, 0.88);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 20px;
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
  z-index: 3;
  animation: dp-float-a 6s infinite ease-in-out;
}

.dp-chip-spark {
  position: absolute;
  top: 48%;
  left: -28px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(14, 17, 26, 0.88);
  border: 1px solid rgba(249, 115, 22, 0.25);
  border-radius: 20px;
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
  z-index: 3;
  animation: dp-float-b 7s infinite ease-in-out;
}

.dp-chip-databricks {
  position: absolute;
  bottom: 12%;
  right: -20px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(14, 17, 26, 0.88);
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: 20px;
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
  z-index: 3;
  animation: dp-float-a 8s infinite ease-in-out;
}

.dp-chip-text {
  font-family: var(--dp-font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: #E2E8F0;
}

@media (max-width: 768px) {
  .dp-chip-cloud, .dp-chip-spark, .dp-chip-databricks {
    display: none; /* Keep super clean on mobile */
  }
  .dp-pipeline-container {
    max-width: 400px;
    margin: 16px auto 0;
  }
  .dp-node-card {
    max-width: 100%;
    margin: 6px 0;
    padding: 12px 16px;
    gap: 14px;
    border-radius: 12px;
  }
  .dp-node-glyph {
    width: 36px;
    height: 36px;
    font-size: 1rem;
    border-radius: 9px;
  }
  .dp-node-title {
    font-size: 0.875rem;
  }
  .dp-node-subtitle {
    font-size: 0.6875rem;
  }
  .dp-pipeline-svg-spine {
    top: 24px;
    bottom: 24px;
    height: calc(100% - 48px);
  }
}

@media (max-width: 480px) {
  .dp-pipeline-container {
    max-width: 350px;
    margin: 12px auto 0;
  }
  .dp-pipeline-atmosphere {
    width: 260px;
    height: 300px;
    filter: blur(35px);
  }
  .dp-node-card {
    margin: 3.5px 0;
    padding: 9.5px 13px;
    gap: 11px;
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  }
  .dp-node-glyph {
    width: 32px;
    height: 32px;
    font-size: 0.9rem;
    border-radius: 8px;
  }
  .dp-node-title {
    font-size: 0.8125rem;
    line-height: 1.25;
  }
  .dp-node-subtitle {
    font-size: 0.64rem;
    margin-top: 1px;
  }
  .dp-node-step {
    font-size: 0.6rem;
    padding: 1.5px 5px;
    border-radius: 4px;
  }
  .dp-pipeline-svg-spine {
    top: 18px;
    bottom: 18px;
    height: calc(100% - 36px);
  }
  .dp-spine-pulse {
    height: 18px;
    width: 5px;
  }
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */

@keyframes dp-flow-spine {
  0% {
    top: 0%;
    opacity: 0;
  }
  15% {
    opacity: 1;
  }
  85% {
    opacity: 1;
  }
  100% {
    top: 100%;
    opacity: 0;
  }
}

@keyframes dp-float-a {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes dp-float-b {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(8px);
  }
}