/* DTDESK — deep detail sections, 3D presentation, read-more */

.dt-detail-3d-stage {
  perspective: 1200px;
  margin: 2rem 0 2.5rem;
  text-align: center;
}

.dt-detail-3d-card {
  position: relative;
  transform-style: preserve-3d;
  transform: rotateX(8deg) rotateY(-6deg);
  transition: transform 600ms cubic-bezier(0.22, 1, 0.36, 1);
  max-width: 640px;
  margin-inline: auto;
}

.dt-detail-3d-stage:hover .dt-detail-3d-card,
.dt-detail-3d-stage:focus-within .dt-detail-3d-card {
  transform: rotateX(2deg) rotateY(0deg) translateY(-4px);
}

.dt-mockup--detail {
  height: 220px;
  border-radius: 12px;
  box-shadow:
    0 24px 48px rgba(7, 17, 31, 0.35),
    0 0 0 1px rgba(37, 99, 235, 0.2);
}

.dt-detail-3d-reflection {
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: -12px;
  height: 24px;
  background: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.25), transparent 70%);
  filter: blur(8px);
  transform: translateZ(-20px);
  pointer-events: none;
}

.dt-detail-3d-caption {
  margin: 1rem 0 0;
  font-size: 0.8125rem;
  color: var(--dt-text-secondary);
}

/* Workflow 3D steps */
.dt-workflow-3d {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0;
}

.dt-workflow-3d-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.25rem;
  background: var(--dt-white);
  border: 1px solid var(--dt-border);
  border-radius: var(--dt-radius);
  box-shadow: var(--dt-shadow);
  transform: translateZ(calc(var(--step-i, 0) * 2px)) rotateX(calc(var(--step-i, 0) * -0.5deg));
  transition: transform 400ms ease, box-shadow 400ms ease;
}

.dt-workflow-3d-step:hover {
  transform: translateY(-3px) rotateX(0deg);
  box-shadow: var(--dt-shadow-lg);
}

.dt-workflow-3d-num {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--dt-gradient);
  color: #fff;
  font-weight: 800;
  font-size: 0.8125rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dt-workflow-3d-body h3 {
  font-size: 1rem;
  margin: 0 0 0.35rem;
}

.dt-workflow-3d-body p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--dt-text-secondary);
}

/* Module cards with depth */
.dt-modules-3d .dt-module-3d {
  transform: translateY(calc(var(--mod-i, 0) * 2px));
  transition: transform 350ms ease, box-shadow 350ms ease;
  border-top: 3px solid transparent;
  border-image: linear-gradient(90deg, var(--dt-brand-blue), var(--dt-accent-cyan)) 1;
}

.dt-modules-3d .dt-module-3d:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--dt-shadow-lg);
}

/* Architecture layers */
.dt-arch-3d {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.dt-arch-3d-layer {
  padding: 1rem 1.25rem;
  background: linear-gradient(135deg, #07111F, #0D1B2A);
  color: var(--dt-text-dark-muted);
  border-radius: var(--dt-radius);
  border: 1px solid rgba(148, 163, 184, 0.18);
  transform: translateX(calc(var(--layer-i, 0) * 8px));
  box-shadow: 0 8px 24px rgba(7, 17, 31, 0.15);
}

.dt-arch-3d-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--dt-accent-cyan);
  margin-bottom: 0.5rem;
}

.dt-arch-3d-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

.dt-arch-3d .dt-tech-chip {
  background: rgba(255, 255, 255, 0.08);
  color: #F8FAFC;
  border-color: rgba(148, 163, 184, 0.25);
}

/* Outcomes */
.dt-outcomes-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  gap: 0.75rem;
}

.dt-outcomes-list li {
  padding: 0.75rem 1rem 0.75rem 2.25rem;
  background: rgba(37, 99, 235, 0.06);
  border-left: 3px solid var(--dt-brand-blue);
  border-radius: 0 8px 8px 0;
  position: relative;
}

.dt-outcomes-list li::before {
  content: '✓';
  position: absolute;
  left: 0.75rem;
  color: var(--dt-success);
  font-weight: 700;
}

/* Read more expand on cards */
.dt-readmore {
  margin-top: 0.75rem;
  border-top: 1px solid var(--dt-border);
  padding-top: 0.75rem;
}

.dt-readmore-toggle {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--dt-brand-blue);
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.dt-readmore-toggle::-webkit-details-marker { display: none; }

.dt-readmore-toggle::after {
  content: '↓';
  font-size: 0.75rem;
  transition: transform 250ms ease;
}

.dt-readmore[open] .dt-readmore-toggle::after {
  transform: rotate(180deg);
}

.dt-readmore-body {
  margin-top: 0.75rem;
  animation: dt-readmore-in 350ms ease;
}

@keyframes dt-readmore-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.dt-readmore-body p {
  font-size: 0.875rem;
  color: var(--dt-text-secondary);
  margin: 0 0 0.75rem;
}

.dt-detail-section {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
}

.dt-detail-section:nth-child(even) {
  background: var(--dt-bg-light);
}

@media (prefers-reduced-motion: reduce) {
  .dt-detail-3d-card,
  .dt-workflow-3d-step,
  .dt-modules-3d .dt-module-3d {
    transform: none !important;
    transition: none !important;
  }

  .dt-readmore-body {
    animation: none;
  }
}

@media (max-width: 640px) {
  .dt-mockup--detail {
    height: 180px;
  }

  .dt-arch-3d-layer {
    transform: none;
  }
}