/* ══════════════════════════════════════════════════════════════
   PHS Data Insights — Chart Section Styles
   Shared across audience pages and product pages
   ══════════════════════════════════════════════════════════════ */

/* Section Wrapper */
.phs-insights-section {
  padding: var(--spacing-2xl) 0;
  background: var(--gray-50);
  position: relative;
  overflow: hidden;
}
.phs-insights-section--white {
  background: var(--white);
}

/* Grid Layouts */
.phs-insights-grid {
  display: grid;
  gap: 2rem;
  margin-top: 2.5rem;
}
.phs-insights-grid--single {
  grid-template-columns: 1fr;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
.phs-insights-grid--two {
  grid-template-columns: 1fr;
}
.phs-insights-grid--three {
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .phs-insights-grid--two {
    grid-template-columns: 1fr 1fr;
  }
  .phs-insights-grid--three {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 1024px) {
  .phs-insights-grid--three {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

/* 50/50 Split Layout: text + chart side by side */
.phs-insights-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
  margin-top: 2.5rem;
}
@media (min-width: 768px) {
  .phs-insights-split {
    grid-template-columns: 1fr 1fr;
  }
  .phs-insights-split--reverse {
    direction: rtl;
  }
  .phs-insights-split--reverse > * {
    direction: ltr;
  }
}

/* Split Content Side */
.phs-insights-text h3 {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  color: var(--navy);
  margin-bottom: 0.75rem;
  line-height: 1.25;
}
.phs-insights-text p {
  font-size: 0.88rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.phs-insights-text .phs-insights-stat {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}
.phs-insights-text .phs-insights-stat-value {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--navy);
  line-height: 1;
}
.phs-insights-text .phs-insights-stat-label {
  font-size: 0.82rem;
  color: var(--gray-600);
}

/* Chart Card */
.phs-insight-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}
.phs-insight-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.phs-insights-section--white .phs-insight-card {
  box-shadow: var(--shadow-md);
}

.phs-insight-card__header {
  padding: 1.75rem 2rem 0;
}
.phs-insight-card__eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.35rem;
}
.phs-insight-card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--navy);
  margin-bottom: 0.25rem;
  line-height: 1.25;
}
.phs-insight-card__subtitle {
  font-size: 0.82rem;
  color: var(--gray-600);
  line-height: 1.5;
}
.phs-insight-card__body {
  padding: 1.25rem 2rem 2rem;
  position: relative;
}
.phs-insight-card__body canvas {
  max-height: 280px;
}
.phs-insight-card__source {
  padding: 0.75rem 2rem;
  font-size: 0.68rem;
  color: var(--gray-400);
  border-top: 1px solid var(--gray-100);
  line-height: 1.5;
}
.phs-insight-card__source a {
  color: var(--gray-400);
  text-decoration: underline;
  text-decoration-color: var(--gray-200);
  text-underline-offset: 2px;
  transition: color var(--transition);
}
.phs-insight-card__source a:hover {
  color: var(--blue);
}

/* Counter Row */
.phs-counter-row {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
  padding: 1.5rem 0;
}
.phs-counter-item {
  text-align: center;
  flex: 1;
  min-width: 130px;
}
.phs-counter-value {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.6rem);
  color: var(--navy);
  line-height: 1.1;
}
.phs-counter-value--blue { color: var(--blue); }
.phs-counter-value--red { color: #D64545; }
.phs-counter-value--green { color: var(--green); }
.phs-counter-label {
  font-size: 0.78rem;
  color: var(--gray-600);
  margin-top: 0.4rem;
  line-height: 1.4;
}

/* Stacked full-width card (for tall charts like retention) */
.phs-insight-card--tall .phs-insight-card__body canvas {
  max-height: 360px;
}

/* Charts inside 50/50 split layouts need tighter height */
.phs-insights-split .phs-insight-card__body canvas {
  max-height: 260px;
}

/* Split card inside a single insight card */
.phs-insight-card__split-charts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.phs-insight-card__split-label {
  text-align: center;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
}
@media (max-width: 600px) {
  .phs-insight-card__split-charts {
    grid-template-columns: 1fr;
  }
}

/* Visibility animation (triggered by IntersectionObserver) */
.phs-insight-card,
.phs-insights-text {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.phs-insight-card.phs-visible,
.phs-insights-text.phs-visible {
  opacity: 1;
  transform: translateY(0);
}
.phs-insight-card.phs-visible:nth-child(2) { transition-delay: 0.1s; }
.phs-insight-card.phs-visible:nth-child(3) { transition-delay: 0.2s; }
.phs-insight-card.phs-visible:nth-child(4) { transition-delay: 0.3s; }

/* Print styles */
@media print {
  .phs-insights-section { break-inside: avoid; }
  .phs-insight-card { box-shadow: none; border: 1px solid #ddd; }
}