/* ====== DATA VIZ SECTION ====== */

.viz-grid {
  display: grid;
  gap: 1.8rem;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 2.5rem;
}

.viz-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 1.8rem;
  border: 1px solid var(--border);
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}

.viz-card:hover {
  transform: translateY(-3px);
  border-color: var(--purple);
  box-shadow: 0 8px 30px rgba(155, 93, 229, 0.15);
}

.viz-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.viz-card h3 .viz-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
}

/* Chart containers */
.chart-container {
  position: relative;
  width: 100%;
  height: 180px;
  display: flex;
  align-items: flex-end;
  gap: 4px;
  padding-top: 0.5rem;
}

/* Bar charts */
.bar {
  flex: 1;
  border-radius: 4px 4px 0 0;
  position: relative;
  transition: height 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
  min-height: 4px;
}

.bar-label {
  position: absolute;
  bottom: -1.4rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.6rem;
  color: var(--muted);
  white-space: nowrap;
}

.bar-value {
  position: absolute;
  top: -1.2rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text);
  opacity: 0;
  transition: opacity 0.3s ease 0.6s;
}

.viz-card:hover .bar-value {
  opacity: 1;
}

/* Heatmap grid */
.heatmap-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 3px;
  width: 100%;
}

.heatmap-cell {
  aspect-ratio: 1;
  border-radius: 3px;
  position: relative;
  transition: transform 0.2s;
  cursor: pointer;
}

.heatmap-cell:hover {
  transform: scale(1.4);
  z-index: 5;
}

.heatmap-cell .heat-tooltip {
  position: absolute;
  bottom: 110%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--card-hover);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.3rem 0.6rem;
  font-size: 0.65rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.heatmap-cell:hover .heat-tooltip {
  opacity: 1;
}

/* Donut ring */
.donut-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  height: 160px;
}

.donut-ring {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  position: relative;
}

.donut-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.donut-center strong {
  display: block;
  font-size: 1.4rem;
  font-weight: 700;
}

.donut-center span {
  font-size: 0.6rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.donut-legend {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.donut-legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: #b0b0c8;
}

.donut-legend-item .dl-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Sparkline */
.sparkline-container {
  width: 100%;
  height: 80px;
  position: relative;
}

.sparkline-svg {
  width: 100%;
  height: 100%;
}

.sparkline-svg polyline {
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Full-width viz feature row */
.viz-features {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  margin-top: 1rem;
}

.viz-feature-item {
  background: var(--card);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.85rem;
}

.viz-feature-item .vfi-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

/* ====== COMPARE SECTION — Data viz specific ====== */
.compare-viz-highlight {
  background: var(--card);
  border-radius: var(--radius);
  padding: 1.5rem;
  border: 1px solid var(--border);
  margin-top: 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 700px) {
  .viz-grid { grid-template-columns: 1fr; }
  .compare-viz-highlight { grid-template-columns: 1fr; }
}