/* === Case Study Hero === */
.cs-hero {
  padding: 8rem 2rem 4rem;
  background: linear-gradient(160deg, var(--color-bg) 0%, var(--color-bg-warm) 100%);
  position: relative;
  overflow: hidden;
}

.cs-hero::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 300px;
  height: 300px;
  opacity: 0.1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Ccircle cx='100' cy='100' r='80' stroke='%23E07A5F' fill='none' stroke-width='1.5'/%3E%3Ccircle cx='100' cy='100' r='60' stroke='%23E07A5F' fill='none' stroke-width='1'/%3E%3Ccircle cx='100' cy='100' r='40' stroke='%23E07A5F' fill='none' stroke-width='1'/%3E%3Cpath d='M100 20 L100 180 M20 100 L180 100' stroke='%23E07A5F' fill='none' stroke-width='0.8'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-size: contain;
  pointer-events: none;
}

.cs-hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.cs-back {
  display: inline-block;
  color: var(--color-accent);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  transition: opacity 0.2s;
}

.cs-back:hover {
  opacity: 0.7;
}

.cs-tag {
  display: inline-block;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  margin-bottom: 1rem;
}

.cs-title {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.cs-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* === Meta Bar === */
.cs-meta {
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.cs-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
}

.cs-meta-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.cs-meta-item p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* === Sections === */
.cs-section {
  position: relative;
  overflow: hidden;
}

.cs-section-alt {
  background: var(--color-bg-warm);
}

.cs-section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  margin-bottom: 2rem;
  color: var(--color-text);
}

.cs-content {
  max-width: 800px;
}

.cs-content p {
  color: var(--color-text-light);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

/* === Callout Box === */
.cs-callout {
  background: var(--color-card-bg);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 12px 12px 0;
  padding: 1.5rem 2rem;
  margin: 2rem 0;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.cs-callout h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.cs-callout ul {
  list-style: none;
  padding: 0;
}

.cs-callout li {
  padding: 0.4rem 0;
  padding-left: 1.25rem;
  position: relative;
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.6;
}

.cs-callout li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.85rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* === Process Steps === */
.cs-process-step {
  display: flex;
  gap: 2rem;
  margin-bottom: 2.5rem;
  align-items: flex-start;
}

.cs-step-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  color: var(--color-accent-soft);
  line-height: 1;
  min-width: 60px;
}

.cs-step-content h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.cs-step-content p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

/* === Design Decision Cards === */
.cs-design-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.cs-design-card {
  background: var(--color-card-bg);
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  transition: transform 0.2s;
}

.cs-design-card:hover {
  transform: translateY(-3px);
}

.cs-design-card h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.cs-design-card p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 0;
}

/* === Outcomes === */
.cs-outcomes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.cs-outcome-card {
  text-align: center;
  padding: 2rem 1rem;
  background: var(--color-card-bg);
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.cs-outcome-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.cs-outcome-card p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 0;
}

/* === Footer === */
.cs-footer .section-container {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  padding: 3rem 2rem;
  border-top: 1px solid rgba(0,0,0,0.06);
}

/* === Responsive === */
@media (max-width: 768px) {
  .cs-title {
    font-size: 2rem;
  }

  .cs-process-step {
    flex-direction: column;
    gap: 0.5rem;
  }

  .cs-step-number {
    font-size: 1.8rem;
  }

  .cs-design-grid,
  .cs-outcomes-grid {
    grid-template-columns: 1fr;
  }
}

/* === Article Links in Callouts === */
.cs-article-link {
  color: var(--color-text-light);
  text-decoration: none;
  transition: color 0.2s;
  display: block;
}

.cs-article-link:hover {
  color: var(--color-accent);
}

.cs-article-link strong {
  color: var(--color-text);
}

.cs-article-link:hover strong {
  color: var(--color-accent);
}