/* Deep Space Nine Chart Styles - Migrated from elm-css */

:root {
  --bg-color: hsl(0, 0%, 10%);
  --text-color: hsl(0, 0%, 60%);
  --hover-bg: hsl(0, 0%, 15%);
  --section-title-color: hsl(0, 0%, 80%);
}

/* Global Styles */
body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  margin: 0;
  padding: 20px;
  line-height: 1.4;
}

/* Container Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Section Styles */
.section {
  margin-bottom: 2rem;
}

.section-title {
  font-size: 1.2em;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--section-title-color);
}

/* Histogram Grid Layout */
.histograms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

/* Large Histogram (Deep Space Nine section) */
.large-histogram {
  display: grid;
  grid-template-columns: repeat(7, auto);
  max-width: 600px;
}

.large-histogram .season {
  padding-inline: 0.5em;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: max(16px, 1.2vw);
  grid-template-rows: repeat(5, max(16px, 1.2vw));
  gap: 3px;

  &:first-child {
    padding-inline-start: 0;
  }

  &:nth-child(n+2) {
    border-left: 1px solid hsl(0 0 0);
  }

  &:last-child {
    padding-inline-end: 0;
  }
}

.large-histogram .histogram-cell {
  width: 100%;
  height: 100%;
  border-radius: 10%;
}

/* Small Histograms (Character/Organization sections) */
.small-histogram {
  display: grid;
  grid-template-columns: repeat(7, auto);
  max-width: 300px;
}

.small-histogram .season {
  padding-inline: 0.3vw;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: max(5px, 0.4vw);
  grid-template-rows: repeat(5, max(5px, 0.4vw));
  gap: max(1.5px, 0.1vw);

  &:first-child {
    padding-inline-start: 0;
  }

  &:nth-child(n+2) {
    border-left: 1px solid hsl(0 0 0);
  }

  &:last-child {
    padding-inline-end: 0;
  }
}

.small-histogram .histogram-cell {
  width: 100%;
  height: 100%;
  border-radius: 10%;
}

/* Episode Table Styles */
.episode-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-color);
  margin: 0 auto;
}

.episode-table td {
  padding: 5px 6px;
  border-bottom: 1px solid hsl(0, 0%, 20%);
}

.episode-row {
  height: 31px;
  font-size: 10px;
  transition: background-color 500ms ease;
}

/* Alternating row colors */
.episode-row:nth-child(odd) {
  background-color: hsl(0, 0%, 9.5%);
}

.episode-row:hover {
  background-color: var(--hover-bg);
}

/* Episode columns */
.episode-index {
  text-align: center;
  font-size: 12px;
}

.season-episode {
  min-width: 4.5em;
  text-align: center;
}

.importance-col {
  text-align: center;
}

.title-wrapper {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.title-en {
  font-size: 12px;
}

.title-ja {
  color: hsl(0, 0%, 40%);
}

.action-button {
  cursor: pointer;
  padding: 0;
  border: none;
  background-color: unset;
  color: inherit;
}

/* Importance-based row coloring (like Elm's stepByImportance) */
.episode-row[data-importance="5"], 
.episode-row[data-importance="4"] {
  color: hsl(0, 0%, 80%);
}

.episode-row[data-importance="3"] {
  color: hsl(0, 0%, 50%);
}

.episode-row[data-importance="2"],
.episode-row[data-importance="1"],
.episode-row[data-importance="0"] {
  color: hsl(0, 0%, 30%);
}

/* Importance Circle (using CSS pseudo-element like Elm) */
.importance-circle::before {
  content: '';
  display: block;
  margin: auto;
  background-color: currentColor;
  border-radius: 50px;
}

/* Importance circle sizes (matches Elm implementation) */
.importance-circle[data-importance="5"]::before {
  width: 23px;
  height: 23px;
}

.importance-circle[data-importance="4"]::before {
  width: 18px;
  height: 18px;
}

.importance-circle[data-importance="3"]::before {
  width: 13px;
  height: 13px;
}

.importance-circle[data-importance="2"]::before {
  width: 8px;
  height: 8px;
}

.importance-circle[data-importance="1"]::before {
  width: 3px;
  height: 3px;
}

/* Episode Popover Styles */
.episode-popover {
  padding: 10px;
  background-color: var(--bg-color);
  color: var(--text-color);
  border-radius: 5px;
  border: 1px solid hsl(0, 0%, 30%);
  max-width: 300px;
}

.episode-popover div {
  margin-bottom: 5px;
}

.episode-popover div:last-child {
  margin-bottom: 0;
}

/* Netflix Link Styles */
.netflix-link {
  display: inline-block;
  padding: 0 10px;
  font-size: 12px;
  text-decoration: none;
  background-color: hsl(350, 50%, 45%);
  color: hsl(0, 0%, 10%);
  border-radius: 15px;
  margin-top: 5px;
}

.netflix-link:visited {
  background-color: hsl(350, 50%, 20%);
}

/* Checkbox Styles */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  cursor: pointer;
  font-size: 0.9em;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

/* Responsive Design */
@media (max-width: 768px) {
  body {
    padding: 10px;
  }

  .container {
    padding: 0 10px;
  }

  .histograms-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .large-histogram .histogram-cell {
    width: min(8vw, 40px);
    height: min(8vw, 40px);
  }

  .small-histogram .histogram-cell {
    width: min(5vw, 25px);
    height: min(5vw, 25px);
  }

  .episode-table {
    font-size: 0.9em;
  }

  .episode-table th,
  .episode-table td {
    padding: 8px;
  }
}

@media (max-width: 480px) {
  .section-title {
    font-size: 1.1em;
  }

  .large-histogram .histogram-cell {
    width: min(10vw, 35px);
    height: min(10vw, 35px);
  }

  .small-histogram .histogram-cell {
    width: min(7vw, 20px);
    height: min(7vw, 20px);
  }

  .episode-table {
    font-size: 0.8em;
  }
}

/* Color Utilities for Histograms */
.histogram-cell {
  transition: opacity 0.2s ease;
}

.histogram-cell:hover {
  opacity: 0.8;
}

/* Season-based layout helpers */
.season-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}