.content>* {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease forwards;
}

.content .project-header { animation-delay: 0.2s; }
.content .project-toc { animation-delay: 0.4s; }
.content .project-section { animation-delay: 0.5s; }


@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

#map-container {
  display: flex;
  flex-direction: column;
  align-items: center;    
  margin-top: 20px;
  flex-wrap: wrap;
  background-color: var(--card);
  box-shadow: 0 2px 6px var(--card-shadow);
  border: 1px solid var(--card-border);
  padding: 1.7em 0;
  border-radius: 8px;
}

svg#sf-map {
  background-color: lightblue;
  border-radius: 8px;
}

.tract {
  stroke: #fff;
  stroke-width: 0.5px;
}

.tract:hover {
  stroke: #000;
  stroke-width: 2px;
  cursor: pointer;
}

#tooltip {
  color: var(--text-color);
  position: absolute;
  background-color: oklch(from var(--card) l c h / 0.85);
  backdrop-filter: blur(2px);
  border: 1px solid var(--input-border);
  border-radius: 4px;
  padding: 8px;
  font-size: 12px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 10;
}

#legend {
  display: flex;
  flex-direction: row;
  margin-top: 20px;
  margin-left: 0;
  flex-shrink: 0;
}

.legend-title {
  font-size: 14px;
  font-weight: bold;
  margin-bottom: 5px;
}

.legend-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0 4px;
}

.legend-color {
  width: 20px;
  height: 20px;
  margin-right: 0;
  margin-bottom: 5px;
  border: 1px solid #ccc;
}

.legend-label {
  font-size: 10px;
}

.map-toggles {
  margin-bottom: 2em;
  display: flex;
  gap: 20px;
  justify-content: center;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
}

.map-toggles label {
  display: flex;
  align-items: center;
  cursor: pointer;
  gap: 8px;
}

.map-toggles input[type="checkbox"] {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.map-toggles .switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
}

.map-toggles .switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  border-radius: 22px;
  transition: .4s;
}

.map-toggles .switch-slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: .4s;
}

.map-toggles input:checked+.switch .switch-slider {
  background-color: var(--color-accent);
}

.map-toggles input:checked+.switch .switch-slider:before {
  transform: translateX(18px);
}

.bart-line-generated {
  stroke: #0099D8;
  stroke-width: 2.5px;
  stroke-opacity: 0.7;
  fill: none;
}

.bart-station {
  fill: white;
  stroke: #0099D8;
  stroke-width: 1px;
}

#chart-container {
  display: flex;
  justify-content: center;
  margin-top: 20px;
  background-color: var(--card);
  box-shadow: 0 2px 6px var(--card-shadow);
  border: 1px solid var(--card-border);
  padding: 2em 0;
  border-radius: 8px;
}

#ridership-chart {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.corridor-group {
  opacity: 0.9;
  transition: opacity 0.2s;
}

#ridership-chart:hover .corridor-group {
  opacity: 0.5;
}

#ridership-chart:hover .corridor-group:hover {
  opacity: 1;
}

.axis .domain {
  stroke: none;
}

.axis .tick line {
  stroke: #e0e0e0;
}

.axis .tick text {
  font-size: 11px;
  fill: var(--text-color);
}

.axis-title {
  font-size: 12px;
  font-weight: 500;
  fill: var(--text-color);
}

.chart-legend {
  font-size: 13px;
  fill: var(--text-color);
}

#line-chart-container {
  display: flex;
  justify-content: center;
  margin-top: 20px;
  background-color: var(--card);
  box-shadow: 0 2px 6px var(--card-shadow);
  border: 1px solid var(--card-border);
  padding: 2em 0;
  border-radius: 8px;
}

#ridership-line-chart {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.line-chart-legend {
  font-size: 13px;
  cursor: pointer;
}

.line-chart-legend .legend-label {
  opacity: 1;
  transition: opacity 0.2s;
  fill: var(--text-color);
}

.line-chart-legend .legend-label.faded {
  opacity: 0.3;
}

.line-path {
  fill: none;
  stroke-width: 3px;
  stroke-opacity: 0.9;
  transition: stroke-opacity 0.2s;
}

.line-path.faded {
  stroke-opacity: 0.1;
}

.map-view-toggle {
  display: flex;
  margin-bottom: 1.5em;
  border: 1px solid var(--card-border);
   box-shadow: 0 2px 6px var(--card-shadow);
  border-radius: 8px;
  overflow: hidden; 
}

.map-view-toggle input[type="radio"] {
  display: none;
}

.map-view-toggle label {
  display: block; 
  border-left: 1px solid var(--card-border);
}
.map-view-toggle label:first-child {
  border-left: none; 
}

.map-view-toggle label span {
  display: block;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-color);
  padding: 8px 16px;
  cursor: pointer;
  background-color: var(--card);
  transition: background-color 0.2s, color 0.2s;
}

.map-view-toggle input[type="radio"]:checked + span {
  background-color: var(--color-accent);
  color: black;
}

.map-view-toggle label span:hover {
  background-color: color-mix(in oklch, var(--color-accent, oklch(65% 50% 200)), canvas 75%);
}

#crowding-chart-container {
  display: flex;
  justify-content: center;
  margin-top: 20px;
  background-color: var(--card);
  box-shadow: 0 2px 6px var(--card-shadow);
  border: 1px solid var(--card-border);
  padding: 2em 0;
  border-radius: 8px;
}

#crowding-chart {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

svg {
  width: 100%;
  height: auto;
}

#sf-map,
#ridership-chart,
#ridership-line-chart,
#crowding-chart {
    max-width: 800px; 
}

@media (max-width: 768px) {
  #map-container {
    width: auto;
    max-width: 100%;
    
    margin-left: auto;
    margin-right: auto;
    
    box-sizing: border-box; 
    
    padding: 1em 0.5em;
  }

  .map-view-toggle {
    width: 90%;
    display: flex;
  }
  
  .map-view-toggle label {
    flex: 1;
    text-align: center;
  }

  .map-toggles {
    flex-direction: column;
    align-items: flex-start; 
    gap: 12px;
    margin-bottom: 1em;
    width: 80%;
  }

  #legend {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    padding: 0 10px;
  }

  .tract {
    stroke-width: 1px;
    vector-effect: non-scaling-stroke;
  }
}