:root {
  --imac-accent: #6510ad;
  --imac-accent-dark: #41106f;
  --imac-ink: #1f2630;
  --imac-muted: #68707a;
  --imac-panel: #f7f7fa;
  --imac-border: #d9d6e5;
}

body {
  color: var(--imac-ink);
  background: #ffffff;
}

.publication-header .hero-body {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

.imac-title {
  color: var(--imac-accent) !important;
  line-height: 1.15;
}

.publication-venue {
  margin: 0.6rem auto 0;
  color: var(--imac-muted);
  font-weight: 600;
}

.button-container {
  gap: 0.5rem;
  flex-wrap: wrap;
}

.imac-button {
  width: auto;
  min-width: 6.4rem;
  padding: 0 1rem;
  border: 1px solid transparent;
}

.imac-button .icon {
  margin-right: 0.35rem;
}

.teaser .hero-body {
  padding-top: 0.5rem;
}

.teaser-caption {
  max-width: 980px;
  margin: 1rem auto 0;
  line-height: 1.45;
}

.demo-video-frame {
  width: min(100%, 1120px);
  margin: 0 auto;
}

.demo-video {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--imac-border);
  border-radius: 8px;
  background: #000000;
}

.video-controls {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-top: 0.55rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--imac-border);
  border-radius: 8px;
  background: #ffffff;
}

.video-scrubber {
  flex: 1 1 auto;
  margin: 0;
  accent-color: var(--imac-accent);
}

.video-time {
  flex: 0 0 auto;
  min-width: 5.5rem;
  color: var(--imac-muted);
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.video-time-divider {
  padding: 0 0.18rem;
}

.pipeline-figure {
  display: block;
  width: min(100%, 1120px);
  height: auto;
  margin: 0 auto;
  border: 1px solid var(--imac-border);
  border-radius: 8px;
}

.section-title {
  color: var(--imac-accent);
  margin-bottom: 0.8rem !important;
}

.imac-section {
  padding-top: 0.5rem;
  padding-bottom: 0.8rem;
}

.imac-section hr {
  margin-top: 0.6rem;
  margin-bottom: 1.4rem;
}

.section-copy {
  max-width: 1040px;
  margin: 1rem auto 0;
}

.video-placeholder,
.image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  border: 2px dashed var(--imac-border);
  background:
    linear-gradient(135deg, rgba(101, 16, 173, 0.08), rgba(34, 120, 140, 0.08)),
    var(--imac-panel);
  color: var(--imac-muted);
  text-align: center;
  border-radius: 8px;
}

.demo-placeholder {
  min-height: 430px;
  aspect-ratio: 16 / 9;
}

.pipeline-placeholder {
  min-height: 360px;
  aspect-ratio: 2.3 / 1;
}

.result-placeholder,
.condition-placeholder {
  min-height: 210px;
  aspect-ratio: 16 / 9;
}

.task-switcher {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 0.3rem;
  margin: 0.2rem auto 1rem;
  padding: 0.25rem;
  width: min(100%, 760px);
  border: 1px solid var(--imac-border);
  border-radius: 8px;
  background: #ffffff;
}

.task-button {
  width: 100%;
  min-width: 0;
  height: 2.2rem;
  padding: 0 0.45rem;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--imac-muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 700;
}

.task-button.is-active,
.task-button:hover,
.task-button:focus-visible {
  border-color: var(--imac-accent);
  background: var(--imac-accent);
  color: #ffffff;
}

.task-button:disabled,
.task-button[aria-disabled="true"] {
  border-color: transparent;
  background: #f1f1f4;
  color: #a6a8ad;
  cursor: not-allowed;
}

.task-button:disabled:hover,
.task-button[aria-disabled="true"]:hover {
  border-color: transparent;
  background: #f1f1f4;
  color: #a6a8ad;
}

.task-button:focus-visible {
  outline: 2px solid rgba(101, 16, 173, 0.28);
  outline-offset: 2px;
}

.task-video-panels {
  width: 100%;
  overflow-x: auto;
  padding-bottom: 0.1rem;
}

.task-video-panel[hidden] {
  display: none;
}

.video-matrix {
  --matrix-header-height: 2.3rem;
  --matrix-side-gap: 0.55rem;
  --matrix-label-width: clamp(9rem, 18vw, 13.5rem);
  --matrix-row-height: 11rem;
  --matrix-controls-height: 2.9rem;
  display: grid;
  grid-template-columns: var(--matrix-label-width) minmax(0, 1fr);
  grid-template-rows: var(--matrix-header-height) repeat(4, var(--matrix-row-height)) var(--matrix-controls-height);
  column-gap: 0;
  row-gap: 0;
  min-width: 920px;
  align-items: stretch;
}

.matrix-corner,
.matrix-row-label {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  color: var(--imac-ink);
  font-weight: 700;
}

.matrix-corner {
  min-height: var(--matrix-header-height);
  background: #f1f4f6;
}

.matrix-corner,
.matrix-row-label {
  margin-right: var(--matrix-side-gap);
}

.matrix-view-header {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  min-height: var(--matrix-header-height);
  background: #f1f4f6;
  border-radius: 6px;
  overflow: hidden;
}

.matrix-view-label {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--imac-ink);
  font-weight: 700;
}

.matrix-row-label {
  padding: 0.75rem;
  background: #f8f8fb;
  color: var(--imac-accent-dark);
  font-size: 0.98rem;
  line-height: 1.15;
  text-align: center;
}

.generated-row-label {
  background: #eef8f6;
  color: #125c57;
}

.matrix-video {
  aspect-ratio: 16 / 9;
}

.matrix-video-frame,
.matrix-composite-video {
  grid-column: 2;
  grid-row: 2 / 6;
  border-radius: 8px;
  background: #ffffff;
}

.matrix-video-frame {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000000;
}

.matrix-video-frame .matrix-composite-video {
  grid-column: auto;
  grid-row: auto;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: fill;
}

.video-placeholder.matrix-composite-video {
  width: 100%;
  height: 100%;
}

.matrix-video-controls {
  grid-column: 2;
  grid-row: 6;
  margin-top: 0.55rem;
}

.eval-placeholder {
  min-height: 330px;
  aspect-ratio: 2.1 / 1;
}

.eval-figure {
  display: block;
  width: min(100%, 1120px);
  height: auto;
  margin: 0 auto;
}

.placeholder-kicker {
  margin-bottom: 0.25rem;
  color: var(--imac-accent-dark);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.placeholder-title {
  margin: 0;
  font-size: 1.05rem;
}

.placeholder-title code {
  color: var(--imac-accent-dark);
  background: rgba(255, 255, 255, 0.75);
  border-radius: 4px;
  padding: 0.1rem 0.28rem;
}

.result-grid {
  margin-top: 0.2rem;
}

.result-label {
  margin-top: 0.55rem;
  color: var(--imac-muted);
  font-weight: 600;
}

.imac-footer {
  margin-top: 1.5rem;
  padding: 2rem 1.5rem;
  color: var(--imac-muted);
  background: #fafafa;
}

@media screen and (max-width: 768px) {
  .imac-title {
    font-size: 2rem !important;
  }

  .demo-placeholder,
  .pipeline-placeholder,
  .eval-placeholder {
    min-height: 230px;
  }

  .video-controls {
    gap: 0.6rem;
    padding: 0.4rem 0.55rem;
  }

  .video-time {
    min-width: 4.8rem;
    font-size: 0.85rem;
  }

  .result-placeholder,
  .condition-placeholder {
    min-height: 190px;
  }

  .task-switcher {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    width: 100%;
  }

  .task-button {
    padding: 0 0.55rem;
  }

  .video-matrix {
    --matrix-label-width: 8rem;
    --matrix-video-width: calc(100% - var(--matrix-label-width) - var(--matrix-side-gap));
    min-width: 760px;
  }
}