/*  HC-specific palette  */
:root {
  --hc-primary: #6B6FD4;
  --hc-dark: #2D3170;
  --hc-accent: #F47B4A;
  --hc-bg: #f0f0f8;
  --hc-cover-bg: linear-gradient(135deg, #2D3170 0%, #6B6FD4 100%);
}

iframe {
  display: block;
  width: 100vw;
  aspect-ratio: 2 / 1.1;
}

.slide_container {
  max-width: 700px;
  display: flex;
  flex-direction: column;
  gap: 3em;
  margin: 0 auto;
}

.hc-cover {
  background: var(--hc-cover-bg) !important;
  min-height: 60vh;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 2em;
}

.hc-cover h1 {
  font-size: var(--fs-display);
  color: rgba(255, 255, 255, 0.95);
  max-width: 760px;
}

.hc-cover .slide-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.hc-cover .label {
  color: rgba(255, 255, 255, 0.5);
}

.hc-cover .cover-meta-label {
  color: rgba(255, 255, 255, 0.5);
}

.hc-cover .cover-meta-value {
  color: rgba(255, 255, 255, 0.9);
}

.hc-cover .cover-divider {
  background: rgba(255, 255, 255, 0.18);
}

/*  Chapter dividers  */
.hc-chapter {
  background: var(--hc-dark);
  padding: 2.5em max(1.5rem, calc((100% - var(--carousel-max-w)) / 2));
  display: flex;
  align-items: center;
  gap: 1em;
  display: none;
}

.hc-chapter-label {
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
}

.hc-chapter-title {
  font-size: var(--fs-2xl);
  font-weight: 800;
  color: #ffffff;
}

/*  Section slides alternating bg  */
.slide:nth-child(odd) {
  background: #f5f5fb;
}

.slide-alt {
  background: #f5f5fb !important;
}

.slide:nth-child(even) {
  background: #f5f5fb21;
}

.case-nav.is-visible {
  opacity: 1 !important
}

/*  Stat highlights  */
.hc-stat {
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--hc-primary);
  line-height: 1;
}

.hc-stat-row {
  display: flex;
  gap: 48px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.hc-stat-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hc-stat-label {
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/*  Phase list  */
.hc-phases {
  display: flex;
  flex-direction: column;
  gap: 1em;
  padding-left: 2em;
  padding-right: 4em;
  width: 100%;
  box-sizing: border-box;
  max-width: 680px;
  margin: 1em 0;
  counter-reset: phase;
}

.hc-phase {
  display: flex;
  flex-direction: column;
  padding: 1.5em;
  background: #f5f5fb;
  border-radius: 16px;
  counter-increment: phase;
}

.hc-phase::before {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--hc-primary);
  display: inline-block;
}

.hc-phase:last-child {
  border-bottom: none;
}

.hc-phase-num {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--hc-primary);
  width: 24px;
  flex-shrink: 0;
  letter-spacing: 0.05em;
}

.hc-phase-title {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--text-heading);
  min-width: 200px;
  display: inline-block;
  margin-bottom: 1e;
}

p+h3 {
    margin-top: 1em;
}

.hc-phase-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.5;
}

/*  Alignment cases  */
.hc-alignment-case {
  border-left: 3px solid var(--hc-primary);
  padding: 16px 0 16px 24px;
  margin-bottom: 24px;
}

.hc-alignment-case:last-child {
  margin-bottom: 0;
}

.hc-alignment-case-title {
  font-size: var(--fs-body);
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 8px;
}

.hc-alignment-case p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  margin: 0;
}

/*  Image placeholder  */
.hc-img-placeholder {
  width: 100%;
  max-width: 760px;
  background: #e8e8f4;
  border-radius: 12px;
  padding: 48px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: var(--fs-md);
  font-style: italic;
  border: 2px dashed #c5c5e0;
}

/*  Prose block  */
.hc-prose {
  max-width: 680px;
  width: 100%;
}

.hc-prose p {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--text-heading);
  margin-bottom: 1.5em;
}

.hc-prose p:last-child {
  margin-bottom: 0;
}

.hc-prose ul {
  margin: 0.5em 0 1.2em 1.5em;
}

.hc-prose li {
  font-size: var(--fs-body);
  line-height: 1.6;
  margin: 0.4em 0;
}

.hc-prose strong {
  color: var(--text-heading);
}

.hc-subsection-title {
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--hc-dark);
  margin-bottom: 12px;
  padding-bottom: 8px;
}

/*  Nav active color override  */
.case-nav-link--active {
  color: var(--hc-primary) !important;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  position: relative;
}

.grid-container .card {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease var(--reveal-delay, 0s), transform 0.6s ease var(--reveal-delay, 0s);
  will-change: opacity, transform;
  visibility: hidden;
}

.grid-container .card.in-view {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

.top-row+div {
  padding-right: 74px;
}

@media (max-width: 1200px) {
  .grid-container {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-container {
    grid-template-columns: 1fr;
  }
}

.img-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #f0f0f5;
  border-radius: 12px;
  content: "Image placeholder";
}

.img-placeholder.portrait {
  aspect-ratio: 9 / 16;
}

.img-placeholder.square {
  aspect-ratio: 1 / 1;
}

.screenshot {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border-radius: 7px;
}

/* Diagram */
.hc-diagram .wrap {display: grid;gap: 80px;grid-template-columns: 1fr 1px 1fr;justify-content: center;padding: 2em 0;align-items: flex-start;}

.hc-diagram .col {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: stretch;
  flex: 1;
  max-width: 320px;
  position: relative;
}

.separator {
  width: 1px;
  margin: 0%;
  background: #00000021;
  content: " ";
  min-height: 90%;
}

.hc-diagram .col-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--hc-dark);
  margin-bottom: 4px;
}

.hc-diagram .col-sub {
  font-size: 14px;
  margin-bottom: 2em;
  line-height: 1.4;
}

.hc-diagram .room-card {
  border: 1px solid #c8c4d4;
  border-radius: 12px;
  padding: 10px;
  margin-bottom: 10px;
  background: #ffffff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.hc-diagram .room-label-a,
.hc-diagram .room-label-b {
  font-size: 14px;
  font-weight: 500;
  color: #3c3580;
  background: #d4d0f5;
  border-radius: 6px;
  padding: 12px 10px;
  margin-bottom: 8px;
  text-align: center;
}

.hc-diagram .room-label-b {
  color: #065040;
  background: #a0e8cc;
}

.hc-diagram .rate-card {
  border: 2px dashed #d4a010;
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 8px;
  font-size: 14px;
  color: #7a4e00;
  background: #fef0c0;
  text-align: center;
  display: block;
}

.hc-diagram .rate-cards-row {
  display: block;
  gap: 5px;
  margin-bottom: 8px;
  white-space: nowrap;
  overflow-x: scroll;
}

.hc-diagram .rate-card-small {
  border: 2px dashed #d4a010;
  border-radius: 8px;
  padding: 16px 8px;
  font-size: 13px;
  color: #7a4e00;
  background: #fef0c0;
  text-align: center;
  display: inline-block;
  width: 43%;
}

.hc-diagram .cta {
  background: #a8bef8;
  border-radius: 6px;
  padding: 7px 10px;
  font-size: 14px;
  font-weight: 500;
  color: #0f1e80;
  text-align: center;
}

.hc-diagram .arrow-wrap {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.rate-card-small .cta {
  margin-top: 8px;
  display: none;
}

.annotation-arrow-right {
  display: flex;
  align-items: center;
  gap: 5px;
  position: absolute;
  right: -148px;
  top: -2px;
  white-space: nowrap;
  pointer-events: none;
}

.annotation-arrow-rates {
  right: -176px;
  top: 50%;
  transform: translateY(-50%);
}

.annotation-arrow-right span {
  font-size: 11px;
  font-weight: 500;
  color: #E05C2E;
  font-family: inherit;
}

.exp-step-placeholder {
  width: 400px;
  aspect-ratio: 16 / 9;
  background: #eeeeee;
  border-radius: 12px;
  flex-shrink: 0;
}

.my-1 { margin-top: 1em; margin-bottom: 1em; }
.my-2 { margin-top: 2em; margin-bottom: 2em; }
.my-3 { margin-top: 3em; margin-bottom: 3em; }
.my-4 { margin-top: 4em; margin-bottom: 4em; }

.w120 { width: 120%; transform: translateX(-10%); }