/* Hero Section - Editorial typography inspired by pretext dynamic-layout */
.hero {
  padding: 80px 24px 64px;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  color: var(--color-text);
}

.hero-subtitle {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.hero-description {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 680px;
  margin: 0 auto 32px;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  padding: 14px 32px;
  background: var(--color-accent);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.hero-cta:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

/* Features */
.features {
  padding: 64px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--color-surface);
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-md);
}

.feature-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Stats */
.stats {
  padding: 64px 24px;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.stats-inner {
  max-width: 900px;
  margin: 0 auto;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-value {
  display: block;
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.2;
}

.stat-label {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

/* Testimonials */
.testimonials {
  padding: 64px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.testimonial {
  background: var(--color-surface);
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.testimonial-quote {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 16px;
  font-style: italic;
}

.testimonial-footer {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.testimonial-author {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
}

.testimonial-role {
  font-size: 0.85rem;
  color: var(--color-text-tertiary);
}

/* CTA Section */
.cta-section {
  padding: 80px 24px;
  text-align: center;
  background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-bg) 100%);
}

.cta-inner {
  max-width: 600px;
  margin: 0 auto;
}

.cta-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.cta-desc {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

/* Section subtitle & source */
.section-subtitle {
  text-align: center;
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  margin-top: -28px;
  margin-bottom: 12px;
}

.section-source {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-tertiary);
  margin-bottom: 40px;
}

/* Problem Statement */
.problem {
  padding: 64px 24px;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.problem-inner {
  max-width: 900px;
  margin: 0 auto;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.problem-card {
  display: flex;
  gap: 16px;
  padding: 24px;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.problem-value {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  min-width: 60px;
  line-height: 1.2;
}

.problem-card-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.problem-card-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* Use Cases */
.use-cases {
  padding: 64px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.use-case-card {
  background: var(--color-surface);
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-normal);
}

.use-case-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-md);
}

.use-case-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.use-case-desc {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Safety */
.safety {
  padding: 64px 24px;
  background: var(--color-success-light);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.safety-inner {
  max-width: 700px;
  margin: 0 auto;
}

.safety-list {
  list-style: none;
}

.safety-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.6;
}

.safety-check {
  color: var(--color-success);
  font-weight: bold;
  min-width: 20px;
  font-size: 1.1rem;
}

/* Trust */
.trust {
  padding: 64px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.trust-card {
  background: var(--color-surface);
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  text-align: center;
  transition: all var(--transition-normal);
}

.trust-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-md);
}

.trust-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.trust-card-desc {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Barriers */
.barriers {
  padding: 64px 24px;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.barriers-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.barriers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.barrier-card {
  display: flex;
  gap: 16px;
  padding: 24px;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.barrier-value {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  min-width: 60px;
  line-height: 1.2;
}

.barrier-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.barrier-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* How It Works */
.how-it-works {
  padding: 64px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.step-card {
  background: var(--color-surface);
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  text-align: center;
  transition: all var(--transition-normal);
}

.step-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-md);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-accent);
  color: white;
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.step-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Sample Prompts */
.sample-prompts {
  padding: 64px 24px;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.sample-prompts-inner {
  max-width: 900px;
  margin: 0 auto;
}

.sample-prompts-grid {
  display: grid;
  gap: 20px;
}

.sample-prompt-card {
  background: var(--color-bg);
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.sample-prompt-category {
  display: inline-block;
  background: var(--color-category-bg);
  color: var(--color-category);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.sample-prompt-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.sample-prompt-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

.sample-prompt-text {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.85rem;
  color: var(--color-text);
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}

/* FAQ */
.faq {
  padding: 64px 24px;
  max-width: 800px;
  margin: 0 auto;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: var(--color-bg);
}

.faq-question h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0;
}

.faq-chevron {
  transition: transform var(--transition-fast);
  flex-shrink: 0;
  color: var(--color-text-tertiary);
}

.faq-item.open .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 24px 20px;
}

.faq-item.open .faq-answer {
  display: block;
}

.faq-answer p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* E-E-A-T */
.eeat {
  padding: 64px 24px;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
}

.eeat-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.eeat-description {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.eeat-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 32px;
}

.eeat-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}

.eeat-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.eeat-stat-value {
  display: block;
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.2;
}

.eeat-stat-label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    padding: 48px 16px 40px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-value {
    font-size: 2rem;
  }

  .features,
  .testimonials {
    padding: 48px 16px;
  }

  .problem,
  .use-cases,
  .safety,
  .trust,
  .barriers,
  .how-it-works,
  .sample-prompts,
  .faq,
  .eeat {
    padding: 48px 16px;
  }

  .problem-grid,
  .barriers-grid {
    grid-template-columns: 1fr;
  }

  .eeat-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}