/* Base styles */
:root {
  --primary-color: #8b5cf6;
  --text-color: #4a4a4a;
  --content-width-lg: 1024px;
  --content-width-md: 1024px;
  --font-family: "Mulish", sans-serif;
}

/* Typography scale using Bootstrap's classes */
.h1,
h1 {
  font-size: calc(1.3rem + 1.3vw) !important;
}

.h2,
h2 {
  font-size: calc(1.2rem + 0.9vw) !important;
}

.h3,
h3 {
  font-size: calc(1.1rem + 0.6vw) !important;
}

figcaption {
  font-size: 1rem !important;
}

/* Updated video-content text sizes */
.video-content p {
  font-size: 1rem !important;
  line-height: 1.1;
}

/* Gallery styles */
.video-gallery-carousel {
  overflow: hidden;
  width: 100%;
  padding: 0;
  display: flex;
  justify-content: center;
}

.video-gallery-item {
  display: none;
  width: 100%;
  max-width: var(--content-width-md);
}

/* Custom styles for headings */
#comparison-scene-buttons h3 {
  font-family: 'Arial', sans-serif;
  font-weight: bold;
}

.human-study h3 {
  font-family: 'Arial', sans-serif;
  font-weight: bold;
}

.video-gallery-item.active {
  display: block;
}

/* Video caption styles */
.video-caption {
  display: flex;
  justify-content: space-between;
  width: 100%;
}

.caption-left, .caption-right {
  width: 50%;
  text-align: center;
  font-weight: bold;
  font-size: 1.2rem;
}

/* Video gallery carousel styles */
.video-gallery-carousel video {
  width: 100%;
  max-height: 80vh;
  object-fit: contain;
}

/* Button container styles */
.video-gallery-buttons {
  margin: 1rem auto;
  width: 100%;
  max-width: var(--content-width-md);
  text-align: center;
}

/* General button styles */
.video-gallery-buttons .button {
  padding: 0;
  height: auto;
  overflow: hidden;
  width: 150px;
  height: 39px;
  transition: all 0.3s ease;
  border-radius: 12px;
}

.button p {
  font-size: 0.96rem;
  font-family: "Mulish", sans-serif !important;
}

.video-gallery-buttons .button img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Primary button state */
.video-gallery-buttons .button.is-primary {
  background-color: var(--primary-color);
  border: 3px solid var(--primary-color);
  padding: 0;
}

/* Button variations */
.video-gallery-buttons .button.is-wide {
  width: 180px;
}

.video-gallery-buttons .button.is-two-line {
  width: 180px;
  height: 50px;
}

.video-gallery-buttons .button.is-two-line p {
  white-space: nowrap;
  width: 200px;
  padding: 5px;
  text-align: center;
  word-wrap: break-word;
}

/* Scene button styles */
.scene-button {
  padding: 0 !important;
  border: none !important;
  background: none !important;
  cursor: pointer;
  transition: all 0.3s ease;
  margin: 0.2rem;
  width: 20%;
  max-width: 140px;
  position: relative;
  display: inline-block;
}

/* Add these new styles */
#gallery-buttons-results {
  width: 100%;
  max-width: 800px;
  margin: 1rem auto;
}

/* Keep existing scene button styles */
.scene-button img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 40px;
}

.scene-button:hover {
  transform: scale(1.05);
}

.scene-button.is-primary {
  position: relative;
}

.scene-button.is-primary::after {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  border: 8px solid var(--primary-color);
  border-radius: 40px;
  pointer-events: none;
}

/* Content styles */
.video-content {
  margin: 1.5rem auto;
  text-align: center;
  padding: 0 1rem;
  max-width: var(--content-width-md);
}

.hero-body .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.title.is-2 {
  text-align: center;
  margin-top: 0.8rem;
  margin-bottom: 1.6rem;
}

/* Figure styles */
figure {
  width: 100%;
  max-width: var(--content-width-lg);
  margin: 0.1rem auto;
  text-align: center;
}

figure img {
  width: 100%;
  height: auto;
  object-fit: contain;
  margin: 0.1rem;
}

figure video {
  width: 100%;
  height: auto;
  object-fit: contain;
  margin: 0.1rem;
}

figure figcaption {
  color: var(--text-color);
  padding: 0 1rem;
  text-align: left;
  font-size: 1.3rem !important;
}

/* Container responsive styles */
.container {
  max-width: 100%;
  padding-right: 1rem;
  padding-left: 1rem;
  margin-right: auto;
  margin-left: auto;
}

@media (min-width: 576px) {
  .container {
    max-width: 540px;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }
}

@media (min-width: 992px) {
  .container {
    max-width: 960px;
  }
}

@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
}

/* Image-Video pair layout */
.image-video-pair {
  display: flex;
  gap: 20px;
  margin: 0 auto;
  justify-content: center;
  align-items: center;
  width: 90%;
  max-width: 1200px;
}

.image-container, .video-container {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.image-container {
  flex: 0 0 100%;
  max-width: 25%;
}

.video-container {
  flex: 0 0 100%;
  max-width: 400px;
}

.image-container img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.video-container video {
  width: 100%;
  height: auto;
  object-fit: contain;
}

/* Action button styles */
.button.is-action-button {
  background-color: white;
  border: 1px solid #dbdbdb;
  color: #363636;
  transition: all 0.3s ease;
}

.button.is-action-button.is-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

/* Two-line button styles */
.button.is-two-line {
  background-color: white;
  border: 1px solid #dbdbdb;
  color: #363636;
  transition: all 0.3s ease;
}

.button.is-two-line.is-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}
.camera-prompt {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin: 12px 0 20px 0;
    font-size: 30px;
    color: #555;
}

.prompt-icon {
    font-size: 15px;
}

.prompt-text {
    font-weight: 1000;
}

.human-study {
  margin-top: 48px;
  text-align: center;
}

.human-study h3 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.study-desc {
  max-width: 900px;
  margin: 0 auto 28px auto;
  color: #5b5b5b;
  font-size: 1rem;
  line-height: 1.6;
}

.study-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(240px, 1fr));
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.study-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 18px;
  padding: 20px 18px;
  text-align: left;
  box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}

.study-card h4 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 18px;
  text-align: center;
  color: #1f2937;
}

.metric-row {
  margin-bottom: 16px;
}

.metric-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #374151;
  margin-bottom: 8px;
}
.metric-label .value {
  font-weight: 700;
  color: #1f2937;
  font-variant-numeric: tabular-nums;
}
.metric-label .value .ci {
  font-weight: 500;
  font-size: 0.82rem;
  color: #6b7280;
  margin-left: 3px;
}

.bar-track {
  width: 100%;
  height: 22px;
  background: #ede9fe;
  border-radius: 999px;
  overflow: visible;
  position: relative;
}

.bar-fill {
  height: 100%;
  border-radius: 999px;
  position: relative;
  z-index: 1;
}

.bar-fill.physics {
  background: #7c3aed;
}

.bar-fill.motion {
  background: #a78bfa;
}

/* CI whisker overlay (I-bar drawn above the track) */
.ci-whisker {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  height: 18px;
  pointer-events: none;
  z-index: 2;
}
.ci-whisker::before,
.ci-whisker::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #4c1d95;
  border-radius: 1px;
}
.ci-whisker::before { left: 0; }
.ci-whisker::after  { right: 0; }
.ci-whisker .bar {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background: #4c1d95;
  border-radius: 1px;
  transform: translateY(-50%);
}

/* Study sub-group (groups one study, e.g. 170-participant or 95-participant) */
.study-group {
  margin-top: 28px;
}
.study-group + .study-group {
  margin-top: 44px;
}
.study-group-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #4b5563;
  margin: 0 auto 18px auto;
  text-align: center;
  letter-spacing: 0.02em;
}
.study-group-title .n {
  font-weight: 500;
  color: #6b7280;
  font-size: 0.95rem;
  margin-left: 6px;
}

/* 5-column grid used by the 95-participant section */
.study-grid-5 {
  display: grid;
  grid-template-columns: repeat(5, minmax(180px, 1fr));
  gap: 16px;
  max-width: 1280px;
  margin: 0 auto;
}

/* Compact card variant for the 5-wide grid */
.study-card.compact {
  padding: 16px 14px;
}
.study-card.compact h4 {
  font-size: 1.05rem;
  margin-bottom: 14px;
}
.study-card.compact .metric-row {
  margin-bottom: 12px;
}
.study-card.compact .metric-label {
  font-size: 0.82rem;
  margin-bottom: 6px;
}
.study-card.compact .metric-label .value .ci {
  font-size: 0.72rem;
}
.study-card.compact .bar-track {
  height: 16px;
}
.study-card.compact .ci-whisker {
  height: 13px;
}

/* Colors for the four 95-participant metrics (purple gradient) */
.bar-fill.imaging   { background: #6d28d9; }
.bar-fill.aesthetic { background: #7c3aed; }
.bar-fill.motion-95 { background: #9333ea; }
.bar-fill.flicker   { background: #a78bfa; }

@media (max-width: 1100px) {
  .study-grid-5 {
    grid-template-columns: repeat(3, minmax(180px, 1fr));
  }
}
@media (max-width: 900px) {
  .study-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 700px) {
  .study-grid-5 {
    grid-template-columns: 1fr;
  }
}

/* === Donut comparison view (alternative visualization) === */
.donut-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(180px, 1fr));
  gap: 16px;
  max-width: 1280px;
  margin: 0 auto;
}
.donut-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 18px;
  padding: 16px 14px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}
.donut-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 14px;
  text-align: center;
  color: #1f2937;
}
.donut-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  column-gap: 8px;
  row-gap: 14px;
}
.donut-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.donut {
  width: 78px;
  height: 78px;
  overflow: visible;
}
.donut-bg {
  stroke: #ede9fe;
  fill: none;
}
.donut-mean {
  fill: none;
}
.donut-mean.imaging   { stroke: #6d28d9; }
.donut-mean.aesthetic { stroke: #7c3aed; }
.donut-mean.motion-95 { stroke: #9333ea; }
.donut-mean.flicker   { stroke: #a78bfa; }
.donut-mean.physics   { stroke: #7c3aed; }
.donut-mean.motion    { stroke: #a78bfa; }
.donut-ci-arc {
  stroke: #4c1d95;
  stroke-opacity: 0.55;
  fill: none;
}
.donut-value {
  font-size: 16px;
  font-weight: 700;
  fill: #1f2937;
  font-family: 'Inter', sans-serif;
  font-variant-numeric: tabular-nums;
}
.donut-ci-label {
  font-size: 8.5px;
  font-weight: 500;
  fill: #6b7280;
  font-family: 'Inter', sans-serif;
}
.donut-metric {
  font-size: 0.8rem;
  font-weight: 600;
  color: #4b5563;
  margin-top: 6px;
  text-align: center;
}

/* 3-column donut grid for the 170-participant comparison */
.donut-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(240px, 1fr));
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

/* Large card variant for the 170p donut view (2 donuts per card) */
.donut-card.large {
  padding: 20px 18px;
}
.donut-card.large h4 {
  font-size: 1.35rem;
  margin-bottom: 18px;
}
.donut-card.large .donut-row {
  column-gap: 12px;
}
.donut-card.large .donut {
  width: 110px;
  height: 110px;
}
.donut-card.large .donut-value {
  font-size: 18px;
}
.donut-card.large .donut-ci-label {
  font-size: 9.5px;
}
.donut-card.large .donut-metric {
  font-size: 0.92rem;
  margin-top: 8px;
}

@media (max-width: 1100px) {
  .donut-grid { grid-template-columns: repeat(3, minmax(180px, 1fr)); }
}
@media (max-width: 900px) {
  .donut-grid-3 { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .donut-grid { grid-template-columns: 1fr; }
}

/* === Interactivity user study (radar chart) === */
.interactivity-desc {
  max-width: 760px;
  margin: 0 auto 28px auto;
  color: #5b5b5b;
  font-size: 1rem;
  line-height: 1.6;
  text-align: center;
}
.radar-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
}
.radar {
  width: 460px;
  height: 400px;
  max-width: 100%;
  overflow: visible;
}
.radar-grid {
  fill: none;
  stroke: #e5e7eb;
  stroke-width: 1;
}
.radar-axis {
  stroke: #d1d5db;
  stroke-width: 1;
}
.radar-ci-band {
  fill: #7c3aed;
  fill-opacity: 0.12;
  stroke: none;
}
.radar-mean {
  fill: #7c3aed;
  fill-opacity: 0.32;
  stroke: #6d28d9;
  stroke-width: 2;
  stroke-linejoin: round;
}
.radar-vertex {
  fill: #6d28d9;
  stroke: #ffffff;
  stroke-width: 1.5;
}
.radar-axis-label {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 700;
  fill: #374151;
  text-anchor: middle;
}
.radar-score {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 700;
  fill: #1f2937;
  text-anchor: middle;
  font-variant-numeric: tabular-nums;
}
.radar-score-ci {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 500;
  fill: #6b7280;
  text-anchor: middle;
}
.radar-tick {
  font-family: 'Inter', sans-serif;
  font-size: 9px;
  fill: #9ca3af;
  text-anchor: middle;
}
.radar-center-label {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  fill: #6b7280;
  font-weight: 500;
  text-anchor: middle;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.radar-center-value {
  font-family: 'Inter', sans-serif;
  font-size: 24px;
  font-weight: 800;
  fill: #1f2937;
  text-anchor: middle;
}
.radar-center-ci {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  fill: #6b7280;
  font-weight: 500;
  text-anchor: middle;
}

/* Survey form evidence image below the radar chart */
.survey-form-wrap {
  margin: 28px auto 0 auto;
  max-width: 90%;
  text-align: center;
}
.survey-form-wrap img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  border: 1px solid #e5e7eb;
  display: block;
}
.survey-form-caption {
  margin-top: 10px;
  color: #6b7280;
  font-size: 0.85rem;
  font-style: italic;
}
@media (max-width: 900px) {
  .survey-form-wrap { max-width: 80%; }
}
@media (max-width: 600px) {
  .survey-form-wrap { max-width: 95%; }
}

/* === Quantitative Evaluation table === */
.quanti-subsection {
  margin-top: 48px;
  margin-bottom: 56px;
  text-align: center;
}
.quanti-subsection h3 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.quanti-desc {
  max-width: 920px;
  margin: 0 auto 28px auto;
  color: #5b5b5b;
  font-size: 1rem;
  line-height: 1.6;
  text-align: center;
}
.quanti-table-wrap {
  max-width: 1100px;
  margin: 0 auto;
  overflow-x: auto;
}
.quanti-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  color: #1f2937;
  font-family: 'Inter', sans-serif;
  font-variant-numeric: tabular-nums;
}
.quanti-table th,
.quanti-table td {
  padding: 10px 12px;
  text-align: center;
  border: none;
  white-space: nowrap;
}
.quanti-table th {
  font-weight: 700;
  color: #374151;
}
.quanti-table thead tr:first-child th {
  border-top: 2px solid #1f2937;
  padding-top: 14px;
  padding-bottom: 6px;
}
.quanti-table thead tr:last-child th {
  border-bottom: 1.5px solid #1f2937;
  padding-bottom: 10px;
}
.quanti-table th.group-header {
  font-weight: 700;
  border-bottom: 1px solid #d1d5db;
}
.quanti-table tbody td {
  border-bottom: 1px solid #f1f1f1;
}
.quanti-table tbody tr.category-sep td {
  border-top: 1px solid #9ca3af;
}
.quanti-table tbody tr:last-child td {
  border-bottom: 2px solid #1f2937;
}
.quanti-table .category-cell {
  font-weight: 700;
  color: #4b5563;
  background: #fafaf9;
  text-align: left;
  padding-left: 16px;
  border-right: 1px solid #e5e7eb;
}
.quanti-table .method-cell {
  text-align: left;
  padding-left: 16px;
  font-weight: 500;
}
.quanti-table .ours-row {
  background: rgba(124, 58, 237, 0.06);
}
.quanti-table .ours-row .method-cell {
  font-weight: 700;
  color: #6d28d9;
}
.quanti-table u {
  text-decoration: underline;
  text-underline-offset: 2px;
}
.quanti-note {
  max-width: 1100px;
  margin: 12px auto 0 auto;
  font-size: 0.82rem;
  color: #6b7280;
  text-align: right;
  font-style: italic;
}

.quantitative-metrics-wrap {
  max-width: 760px;
}
.quantitative-metrics-table {
  font-size: 1rem;
}
.quantitative-metrics-table th:first-child,
.quantitative-metrics-table td:first-child {
  text-align: left;
}
.quantitative-metrics-table th:not(:first-child),
.quantitative-metrics-table td:not(:first-child) {
  width: 25%;
}

.human-study-2afc {
  width: min(100%, 980px);
  margin: clamp(3.5rem, 7vw, 5.5rem) auto 0;
  padding-top: clamp(2.8rem, 5vw, 4rem);
  border-top: 1px solid #e5e7eb;
}

.human-study-2afc h3 {
  margin: 0 0 1rem;
  color: #111827;
  font-family: 'Google Sans', 'Noto Sans', 'Inter', Arial, sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  line-height: 1.15;
  text-align: center;
}

.human-study-caption {
  max-width: 860px;
  margin-bottom: clamp(2rem, 4vw, 3rem);
  color: #5b6472;
  font-size: clamp(0.95rem, 1.35vw, 1.1rem);
}

.donut-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1rem, 2.5vw, 1.6rem);
  max-width: 900px;
  margin: 0 auto;
}

.human-study-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  padding: clamp(1.25rem, 2.8vw, 2rem) !important;
  border-radius: 1.4rem;
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.08);
}

.human-study-card h4 {
  min-height: 2.7em;
  margin-bottom: 1.25rem !important;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #1f2937;
  font-size: clamp(1.05rem, 1.8vw, 1.3rem) !important;
  line-height: 1.35;
}

.human-study-card .donut-row {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(0.7rem, 2vw, 1.2rem);
}

.human-study-card .donut {
  width: clamp(96px, 12vw, 124px) !important;
  height: clamp(96px, 12vw, 124px) !important;
}

.human-study-card .donut-value {
  font-size: 17px !important;
}

.donut-mean.physical-plausibility {
  stroke: #6d28d9;
  stroke-linecap: round;
}

.donut-mean.instruction-alignment {
  stroke: #8b5cf6;
  stroke-linecap: round;
}

.human-study-card .donut-metric {
  max-width: 10rem;
  min-height: 2.7em;
  margin-top: 0.65rem;
  color: #4b5563;
  font-size: clamp(0.82rem, 1.25vw, 0.98rem);
  line-height: 1.35;
}

@media (max-width: 720px) {
  .donut-grid-2 {
    grid-template-columns: 1fr;
  }

  .human-study-card h4 {
    min-height: auto;
  }
}

@media (max-width: 800px) {
  .quanti-table { font-size: 0.82rem; }
  .quanti-table th,
  .quanti-table td { padding: 8px 6px; }
  .quanti-table .category-cell,
  .quanti-table .method-cell { padding-left: 8px; }
}