/* Slide 3: staged decoder overview reveal. */

#slide-3 {
  --arch3-block-shell-width: 13.55rem;
  --arch3-equation-shell-width: 20.4rem;
}

#slide-3 .arch3-layout {
  gap: 1.35rem;
  align-items: center;
}

#slide-3 .arch-brace-label {
  right: -0.08rem;
  transform: translateY(-50%) translateX(calc(100% - 0.52rem));
}

#slide-3 .arch3-block-shell,
#slide-3 .arch3-equation-shell {
  flex: 0 0 auto;
  max-width: 0;
  overflow: hidden;
  opacity: 0;
  margin-left: 0;
  pointer-events: none;
  will-change: max-width, opacity, transform;
}

#slide-3 .arch3-block-shell {
  transform: translateX(-1rem);
  transition:
    max-width 0.5s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.28s ease,
    margin-left 0.5s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.4s ease;
}

#slide-3 .arch3-equation-shell {
  transform: translateX(-0.85rem) scale(0.96);
  transition:
    max-width 0.56s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.3s ease,
    margin-left 0.56s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.44s cubic-bezier(0.22, 1, 0.36, 1);
}

#slide-3.arch3-show-block .arch3-block-shell {
  max-width: calc(var(--arch3-block-shell-width) + 0.35rem);
  opacity: 1;
  margin-left: 0.85rem;
  pointer-events: auto;
  transform: translateX(0);
}

#slide-3.arch3-show-eq .arch3-equation-shell {
  max-width: calc(var(--arch3-equation-shell-width) + 2.35rem);
  opacity: 1;
  margin-left: -0.7rem;
  pointer-events: auto;
  transform: translateX(0) scale(1);
}

#slide-3 .arch3-block-detail {
  width: var(--arch3-block-shell-width);
  min-width: 0;
  padding: 0.74rem 0.84rem;
  margin-left: 0;
  transform: none;
}

#slide-3 .arch3-equation-panel {
  width: var(--arch3-equation-shell-width);
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--accent-border);
  background:
    radial-gradient(circle at top, rgba(42, 79, 214, 0.2), transparent 62%),
    linear-gradient(180deg, rgba(232, 236, 252, 0.98), rgba(240, 244, 255, 0.98));
  box-shadow: 0 1rem 2.25rem rgba(60, 80, 160, 0.12);
  padding: 0.84rem 3rem 0.9rem;
}

#slide-3.arch3-show-eq .arch3-equation-panel {
  width: calc(var(--arch3-equation-shell-width) + 2rem);
  animation: arch3-eq-pop 0.58s cubic-bezier(0.2, 0.9, 0.25, 1.15);
}

#slide-3 .arch3-equation-kicker {
  font-size: 0.56rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #0d1020;
  opacity: 1;
  text-align: center;
}

#slide-3 .arch3-equation-main {
  min-height: 3.2rem;
  margin-top: 0.38rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0d1020;
  text-align: center;
  opacity: 0;
  transition: opacity 0.24s ease;
}

#slide-3 .arch3-equation-shell[data-math-ready="true"] .arch3-equation-main {
  opacity: 1;
}

#slide-3 .arch3-equation-main .mjx-container {
  margin: 0 !important;
  font-size: 135% !important;
}

#slide-3 .arch3-equation-caption {
  margin-top: 0.22rem;
  font-size: 0.58rem;
  line-height: 1.45;
  color: #1a2560;
  text-align: center;
}

#slide-3 .arch3-equation-pills {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.6rem;
}

#slide-3 .arch3-equation-pill {
  padding: 0.2rem 0.48rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(42, 79, 214, 0.34);
  background: rgba(42, 79, 214, 0.12);
  color: #0d1020;
  font-size: 0.52rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  opacity: 0;
  transform: translateY(0.35rem);
  transition: opacity 0.24s ease, transform 0.3s ease;
}

#slide-3.arch3-show-eq .arch3-equation-pill {
  opacity: 1;
  transform: translateY(0);
}

#slide-3.arch3-show-eq .arch3-equation-pill:nth-child(1) {
  transition-delay: 0.08s;
}

#slide-3.arch3-show-eq .arch3-equation-pill:nth-child(2) {
  transition-delay: 0.16s;
}

#slide-3.arch3-show-eq .arch3-equation-pill:nth-child(3) {
  transition-delay: 0.24s;
}

#slide-3 .arch3-attn-focus {
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

#slide-3.arch3-show-eq .arch3-attn-focus {
  border-color: rgba(90, 48, 200, 0.72) !important;
  box-shadow:
    0 0 0 0.08rem rgba(90, 48, 200, 0.16),
    0 0 1rem rgba(90, 48, 200, 0.24);
  transform: scale(1.02);
  animation: arch3-attn-pop 0.5s cubic-bezier(0.2, 0.9, 0.25, 1.15);
}

@keyframes arch3-eq-pop {
  0% {
    transform: translateY(0.32rem) scale(0.96);
  }
  65% {
    transform: translateY(-0.08rem) scale(1.02);
  }
  100% {
    transform: translateY(0) scale(1);
  }
}

@keyframes arch3-attn-pop {
  0% {
    transform: scale(0.98);
  }
  70% {
    transform: scale(1.035);
  }
  100% {
    transform: scale(1.02);
  }
}