/* ============================================================
   ABOUT PAGE — Serena Health V2
   ============================================================ */

/* Hero */
.hero-section {
  background: var(--gradient-primary);
  color: #ffffff;
  padding: 80px 0 100px;
  text-align: center;
}
.hero-title {
  font-size: 2.75rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.2;
}
.hero-subtitle {
  font-size: 1.125rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 32px;
  line-height: 1.6;
}
.hero-section .btn-primary {
  display: inline-block;
  background: #ffffff;
  color: var(--color-primary-purple);
  font-weight: 700;
  font-family: var(--font-family-label);
  padding: 14px 36px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-size: 1rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.hero-section .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

/* Section titles */
.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: #1a1a2e;
  text-align: center;
  margin-bottom: 12px;
}
.section-subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
  line-height: 1.6;
}

/* How We Operate — 4-column grid */
.mission-section {
  padding: 80px 0;
  background: #fefdfb;
}
.operate-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.operate-card {
  background: #ffffff;
  border: 1px solid #e2e0dc;
  border-radius: 12px;
  padding: 28px 24px;
}
.operate-title {
  font-size: 1rem;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 12px;
}
.operate-card p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 12px;
}
.operate-card p:last-child { margin-bottom: 0; }
.operate-card a {
  color: var(--color-primary-purple);
  font-size: 0.875rem;
}

/* Difference — 3-column */
.difference-section {
  padding: 80px 0;
  background: #f8f7f5;
}
.difference-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}
.difference-card {
  background: #ffffff;
  border: 1px solid #e2e0dc;
  border-radius: 12px;
  padding: 36px 28px;
  text-align: center;
}
.difference-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}
.difference-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 12px;
}
.difference-card p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin: 0;
}

/* Trust badges — 4-column row */
.trust-section {
  padding: 80px 0;
  background: #fefdfb;
}
.trust-badges-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.trust-badge-item {
  background: #ffffff;
  border: 1px solid #e2e0dc;
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
}
.trust-badge-label {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary-purple);
  margin-bottom: 10px;
}
.trust-badge-desc {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
}

/* Medical Team */
.team-section {
  padding: 80px 0;
  background: #f8f7f5;
}
.team-highlights {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 32px;
}
.team-highlight-item {
  background: #ffffff;
  border: 1px solid #e2e0dc;
  border-radius: 10px;
  padding: 20px 16px;
  text-align: center;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #1a1a2e;
}

/* CTA */
.cta-section {
  padding: 100px 0;
  background: var(--gradient-primary);
  text-align: center;
  color: #ffffff;
}
.cta-title {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: #ffffff;
}
.cta-subtitle {
  font-size: 1.125rem;
  opacity: 0.9;
  margin: 0 auto 32px;
  max-width: 500px;
  color: #ffffff;
}
.cta-section .btn-primary {
  display: inline-block;
  background: #ffffff;
  color: var(--color-primary-purple);
  font-weight: 700;
  font-family: var(--font-family-label);
  padding: 16px 40px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-size: 1.0625rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.cta-section .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .operate-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-badges-row { grid-template-columns: repeat(2, 1fr); }
  .team-highlights { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .hero-title { font-size: 2rem; }
  .hero-subtitle { font-size: 1rem; }
  .section-title { font-size: 1.625rem; }
  .difference-grid { grid-template-columns: 1fr; gap: 20px; }
  .cta-title { font-size: 1.75rem; }
}
@media (max-width: 576px) {
  .operate-grid { grid-template-columns: 1fr; }
  .trust-badges-row { grid-template-columns: 1fr; }
  .team-highlights { grid-template-columns: 1fr; }
  .hero-section { padding: 60px 0 80px; }
}