body {
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  background: #f9f9fb;
  color: #222;
  margin: 0;
  padding: 0;
  padding-bottom: env(safe-area-inset-bottom, 0);
  overflow-x: hidden;
}
header {
  background: #fff;
  border-bottom: 1px solid #e0e0e0;
  padding: calc(1.5rem + env(safe-area-inset-top, 0)) max(1rem, env(safe-area-inset-right, 0px)) 1.5rem
    max(1rem, env(safe-area-inset-left, 0px));
  text-align: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}
main {
  max-width: 70vw;
  min-width: 320px;
  margin: 0 auto 2rem auto;
  padding: 0 max(1rem, env(safe-area-inset-left, 0px)) 0 max(1rem, env(safe-area-inset-right, 0px));
  box-sizing: border-box;
}
section {
  background: none;
  border: none;
  box-shadow: none;
  padding: 0;
  margin-bottom: 2.5rem;
}
h2,
h3 {
  margin-top: 0;
  color: #2a6ebb;
}
h3 {
  font-size: 2rem;
  text-align: center;
  margin-top: 2.2rem;
  margin-bottom: 1.1rem;
  color: #2a6ebb;
}
h4 {
  font-size: 1.5rem;
  text-align: center;
  margin-top: 1.2rem;
  margin-bottom: 0.7rem;
  color: #2a6ebb;
}
ol {
  padding-left: 1.2rem;
}
.upload-placeholder,
.summary-placeholder,
.visualizations-placeholder {
  background: #f0f4fa;
  border: 1.5px dashed #b3c6e0;
  color: #7a8ca3;
  border-radius: 6px;
  padding: 1.5rem;
  text-align: center;
  font-size: 1.1rem;
}
.visualizations-placeholder {
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
  min-height: 220px;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: auto;
}

.upload-area {
  background: #f0f4fa;
  border: 2px dashed #2a6ebb;
  border-radius: 8px;
  padding: 1.3rem 1.2rem;
  text-align: center;
  margin-top: 1rem;
  transition: border-color 0.2s;
  cursor: pointer;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.upload-area.dragover {
  border-color: #00b894;
  background: #e6f7ef;
}
.upload-area.success {
  border-color: #00b894;
  background: #e6f7ef;
}
#browse-btn {
  background: #2a6ebb;
  color: #fff;
  border: none;
  border-radius: 5px;
  padding: 0.7rem 1.2rem;
  min-height: 44px;
  min-width: 44px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 0.7rem;
  transition: background 0.2s;
}
#browse-btn:hover {
  background: #00b894;
}
#sample-btn {
  background: #2a6ebb;
  color: #fff;
  border: none;
  border-radius: 5px;
  padding: 0.7rem 1.2rem;
  min-height: 44px;
  min-width: 44px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 0.7rem;
  transition: background 0.2s;
}
#sample-btn:hover {
  background: #00b894;
}
.button-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 0.7rem;
}
.upload-area-hint {
  font-size: 0.95rem;
  color: #444;
  margin: 0.5rem 0 0;
  line-height: 1.45;
  max-width: 28rem;
  margin-left: auto;
  margin-right: auto;
}
.viz-mobile-hint {
  text-align: center;
  font-size: 0.92rem;
  color: #666;
  margin: -0.35rem auto 1.2rem;
  max-width: 32rem;
  line-height: 1.35;
}
@media (orientation: landscape) and (max-height: 520px) {
  .viz-mobile-hint {
    font-size: 0.85rem;
    opacity: 0.9;
    margin-bottom: 0.9rem;
  }
}
.or-divider {
  font-size: 0.9rem;
  color: #666;
  font-weight: 500;
}
.upload-status {
  margin-top: 1rem;
  min-height: 1.5em;
  font-size: 1rem;
  color: #d63031;
  text-align: center;
}
.upload-status.success {
  /* Remove green color for success, handled by upload area now */
}

.summary-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  justify-content: center;
  margin-top: 1.5rem;
}
.summary-card,
.participant-summary-card {
  background: #f0f4fa;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  padding: 1.2rem 1.5rem;
  min-width: 150px;
  text-align: center;
  font-size: 1.1rem;
  color: #2a6ebb;
  font-weight: 500;
  border: 1.5px solid #e0eaf6;
  margin: 0;
  display: block;
  font-family: 'Segoe UI', Arial, sans-serif;
}

.summary-card strong,
.participant-summary-card h4 {
  color: #222;
  font-size: 1.15em;
  display: block;
  margin-bottom: 0.5em;
  font-family: 'Segoe UI', Arial, sans-serif;
  font-weight: 700;
}

.visualizations-placeholder .js-plotly-plot,
.visualizations-placeholder svg,
.visualizations-placeholder canvas {
  height: auto;
  margin: 0 auto;
  display: block;
}
.visualizations-placeholder .js-plotly-plot {
  touch-action: pan-y pinch-zoom;
}

/* D3 chart tick label font size */
.tick text {
  font-size: 1.1rem;
  fill: #2a6ebb;
}

/* Consistent color palette for D3 charts */
.bar,
.bar-hour,
.bar-delay {
  fill: #2a6ebb;
}
.bar-emoji {
  fill: #00b894;
}
.axis path,
.axis line {
  stroke: #b3c6e0;
}

/* Participant summaries styled like skill-category/skills-grid */
.participant-summaries-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  justify-content: center;
  margin: 2rem 0 2.5rem 0;
}

.participant-summary-card {
  background: #f0f4fa;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  padding: 1.2rem 1.5rem;
  min-width: 150px;
  text-align: center;
  font-size: 1.1rem;
  color: #2a6ebb;
  font-weight: 500;
  border: 1.5px solid #e0eaf6;
}

.participant-summary-card h4 {
  margin: 0 0 0.7em 0;
  font-size: 1.2em;
  color: #2a6ebb;
}

.participant-summary-card .emoji-list {
  display: flex;
  font-size: 1.5em;
  justify-content: center;
  font-family: 'Twemoji Mozilla', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol',
    'Noto Color Emoji', 'EmojiOne Color', 'Android Emoji', sans-serif;
}

.participant-summary-card .stat-label {
  color: #222;
  font-weight: 600;
  margin-right: 0.3em;
}

.participant-summary-card .stat-row {
  margin-bottom: 0.4em;
  display: flex;
  align-items: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
  justify-content: center;
}

.top-words-list {
  display: flex;
  justify-content: space-between;
  gap: var(--summary-card-gap);
  padding: 0.5rem 0;
  max-width: 100%; /* adjust to desired width */
  margin: 0 auto;
}

.top-word {
  flex: 1;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: 'Twemoji Mozilla', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol',
    'Noto Color Emoji', 'EmojiOne Color', 'Android Emoji', sans-serif;
}

/* Make emojis larger in the most used emojis row */
.stat-most-used-emojis + .top-words-list .top-word {
  font-size: 1.5rem;
  line-height: 1.2;
}
.stat-top-words {
  justify-content: center;
}

/* Modern ChatStats landing page styles */
.cs-header {
  margin-top: 2.5rem;
  margin-bottom: 3rem;
  text-align: center;
}
.cs-title {
  font-size: 5.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #2a6ebb;
  margin-bottom: 0.8rem;
}
.cs-desc {
  font-size: 1.25rem;
  color: #222;
  margin-bottom: 0.8rem;
  font-weight: 400;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.cs-privacy {
  font-size: 1.05rem;
  color: #2a6ebb;
  opacity: 0.7;
  margin-top: 0.6rem;
  font-weight: 400;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.cs-github-link {
  margin-top: 0.6rem;
  font-size: 1.05rem;
  color: #2a6ebb;
  opacity: 0.7;
  font-weight: 400;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.cs-github-link a {
  color: #2a6ebb;
  text-decoration: none;
  transition: opacity 0.2s;
}
.cs-github-link a:hover {
  opacity: 1;
  text-decoration: underline;
}
.cs-instructions {
  margin-top: 2rem;
  margin-bottom: 3rem;
  text-align: center;
}
.cs-instructions h2 {
  color: #2a6ebb;
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 1.3rem;
}
.cs-instructions ol {
  display: inline-block;
  text-align: left;
  font-size: 1.12rem;
  color: #444;
  margin: 0 auto 1.5rem auto;
  padding-left: 1.2rem;
  max-width: 500px;
}
.cs-limit-notice {
  display: block;
  background: #f0f4fa;
  color: #2a6ebb;
  padding: 0.8rem 1.5rem;
  border: 2px dashed #2a6ebb;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  margin: 0 auto;
  max-width: 500px;
  text-align: center;
}
.cs-limit-notice span {
  display: inline-block;
}
.cs-upload {
  text-align: center;
  margin-bottom: 3rem;
}
#upload-area {
  margin-top: 0.7rem;
  margin-bottom: 0.7rem;
}
@media (max-width: 900px) {
  main {
    max-width: 98vw;
  }
}
@media (max-width: 600px) {
  h3 {
    font-size: 1.45rem;
    margin-top: 1.5rem;
  }
  h4 {
    font-size: 1.2rem;
  }
  .cs-title {
    font-size: 2.1rem;
    word-break: break-word;
    padding: 0 0.5rem;
  }
  .cs-header {
    margin-top: 1.2rem;
    margin-bottom: 1.2rem;
    padding: 0 0.5rem;
  }
  .cs-desc,
  .cs-privacy,
  .cs-github-link {
    font-size: 1rem;
    max-width: 98vw;
    padding: 0 0.5rem;
    box-sizing: border-box;
  }
  .cs-instructions {
    margin-top: 1.2rem;
    margin-bottom: 1.2rem;
    padding: 0 0.5rem;
  }
  .cs-instructions ol,
  .cs-limit-notice {
    max-width: 98vw;
    font-size: 0.98rem;
    padding-left: 0.7rem;
    box-sizing: border-box;
  }
  .upload-area {
    padding: 0.8rem 0.5rem;
    max-width: 98vw;
  }
}
.hidden-on-load {
  display: none !important;
}
.emoji-text {
  font-family: 'Twemoji Mozilla', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol',
    'Noto Color Emoji', 'EmojiOne Color', 'Android Emoji', sans-serif;
}
.privacy-desktop {
  display: block;
}
/* Instructions card styling */
.cs-instructions-card {
  background: #f0f4fa;
  border: 2px dashed #2a6ebb;
  border-radius: 8px;
  padding: 0;
  margin: 0 auto 2.5rem auto;
  max-width: 600px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  text-align: left;
  font-size: 1.12rem;
  color: #222;
}
.cs-instructions-details {
  display: block;
}
.cs-instructions-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  color: #2a6ebb;
  font-size: 1.1rem;
  user-select: none;
}
.cs-instructions-summary::-webkit-details-marker {
  display: none;
}
.cs-instructions-summary:hover {
  color: #1a5a9e;
}
.cs-instructions-chevron {
  font-size: 0.75em;
  transition: transform 0.2s ease;
  margin-left: 0.5rem;
}
.cs-instructions-details[open] .cs-instructions-chevron {
  transform: rotate(180deg);
}
.cs-instructions-content {
  padding: 0 1.5rem 1.5rem 1.5rem;
  border-top: 1px solid #e0eaf6;
}
.cs-instructions-tabs {
  display: flex;
  gap: 0.5rem;
  margin: 1.2rem 0 1rem 0;
}
.cs-instructions-tab {
  padding: 0.5rem 1rem;
  min-height: 44px;
  box-sizing: border-box;
  border: 2px solid #b3c6e0;
  border-radius: 6px;
  background: #fff;
  color: #2a6ebb;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.cs-instructions-tab:hover {
  background: #e8eef6;
  border-color: #2a6ebb;
}
.cs-instructions-tab.active {
  background: #2a6ebb;
  border-color: #2a6ebb;
  color: #fff;
}
.cs-instructions-panels {
  position: relative;
}
.cs-instructions-panel {
  display: none;
}
.cs-instructions-panel.active {
  display: block;
}
.cs-instructions-panel ol {
  margin: 0 0 0.5rem 1.2rem;
  padding-left: 1.2rem;
  color: #444;
  font-size: 1.08rem;
}
.cs-instructions-card .cs-limit-notice {
  margin-top: 1.5em;
  margin-bottom: 0;
  border: 2px dashed #00b894;
  color: #00b894;
  background: #e6f7ef;
}
@media (max-width: 600px) {
  .cs-instructions-card {
    padding: 0;
    max-width: 98vw;
    font-size: 0.98rem;
  }
  .cs-instructions-summary {
    padding: 1rem 1rem;
    font-size: 1rem;
  }
  .cs-instructions-content {
    padding: 0 1rem 1rem 1rem;
  }
  .cs-instructions-tabs {
    margin: 1rem 0 0.8rem 0;
  }
  .cs-instructions-tab {
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
  }
  .cs-instructions-panel ol {
    font-size: 0.98rem;
  }
}
.cs-instructions-note {
  margin-top: 1.5em;
  color: #888;
  font-size: 0.98em;
  font-style: italic;
  text-align: center;
  border: none;
  background: none;
  padding: 0;
}
:root {
  --summary-card-gap: 0rem;
}