/* ============================================================
   Case Studies Page Styles — Terminal/Hacker Theme
   Font: JetBrains Mono | Colors: #22C55E primary, #0A0A0A bg
   ============================================================ */

/* Hero Section */
.case-studies-hero {
  padding: 8rem 0 4rem;
  background: #0A0A0A;
  color: #D4D4D8;
  position: relative;
  overflow: hidden;
  font-family: 'JetBrains Mono', monospace;
}

.case-studies-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(34, 197, 94, 0.02);
  pointer-events: none;
}

.case-studies-hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.case-studies-hero__badge {
  display: inline-block;
  background: rgba(34, 197, 94, 0.08);
  color: #22C55E;
  border: 1px solid rgba(34, 197, 94, 0.3);
  padding: 0.375rem 1rem;
  border-radius: 2px;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
  font-family: 'JetBrains Mono', monospace;
}

.case-studies-hero__badge::before { content: '['; margin-right: 0.25rem; }
.case-studies-hero__badge::after  { content: ']'; margin-left: 0.25rem; }

.case-studies-hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  color: #D4D4D8;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: -0.02em;
}

.case-studies-hero__subtitle {
  font-size: clamp(0.9375rem, 2vw, 1.0625rem);
  color: #71717A;
  line-height: 1.7;
  margin-bottom: 2rem;
  font-family: 'JetBrains Mono', monospace;
}

/* Hero Stats Summary */
.case-studies-hero__stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(34, 197, 94, 0.15);
}

.case-studies-hero__stat {
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
}

.case-studies-hero__stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: #22C55E;
  line-height: 1;
  font-family: 'JetBrains Mono', monospace;
}

.case-studies-hero__stat-label {
  font-size: 0.75rem;
  color: #71717A;
  margin-top: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: 'JetBrains Mono', monospace;
}

/* Filter Section */
.case-studies-filter {
  padding: 1.5rem 0;
  background: #0F0F0F;
  border-bottom: 1px solid rgba(34, 197, 94, 0.1);
  position: sticky;
  top: 70px;
  z-index: 100;
}

.case-studies-filter__label {
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: #71717A;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.case-studies-filter__buttons {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.filter-btn {
  padding: 0.5rem 1.125rem;
  border: 1px solid rgba(113, 113, 122, 0.3);
  background: #141414;
  color: #71717A;
  border-radius: 2px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.filter-btn:hover {
  border-color: rgba(34, 197, 94, 0.4);
  background: rgba(34, 197, 94, 0.06);
  color: #22C55E;
}

.filter-btn.active {
  background: rgba(34, 197, 94, 0.1);
  color: #22C55E;
  border-color: #22C55E;
}

/* Case Studies Grid */
.case-studies-grid-section {
  padding: 4rem 0;
  background: #0A0A0A;
}

.case-studies-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.case-study-card {
  background: #0F0F0F;
  border-radius: 2px;
  padding: 2.5rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  border: 1px solid rgba(34, 197, 94, 0.12);
  opacity: 1;
  transform: scale(1);
  font-family: 'JetBrains Mono', monospace;
  animation: fadeIn 0.3s ease-out;
}

.case-study-card.hidden {
  display: none;
}

.case-study-card:hover {
  border-color: rgba(34, 197, 94, 0.3);
  box-shadow: 0 0 20px rgba(34, 197, 94, 0.05);
}

.case-study-card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(34, 197, 94, 0.1);
}

.case-study-card__title-group {
  flex: 1;
}

.case-study-card__client {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: #22C55E;
  font-family: 'JetBrains Mono', monospace;
}

.case-study-card__location {
  font-size: 0.8125rem;
  color: #71717A;
  margin-bottom: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
}

.case-study-card__product-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(34, 197, 94, 0.1);
  color: #22C55E;
  border: 1px solid rgba(34, 197, 94, 0.25);
  border-radius: 2px;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.case-study-card__industry-badge {
  padding: 0.25rem 0.75rem;
  background: #141414;
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: #06B6D4;
  border-radius: 2px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: 'JetBrains Mono', monospace;
}

.case-study-card__section {
  margin-bottom: 1.75rem;
}

.case-study-card__section-title {
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 0.875rem;
  color: #22C55E;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.case-study-card__section-title::before {
  content: '';
  width: 3px;
  height: 1rem;
  background: #22C55E;
  flex-shrink: 0;
}

.case-study-card__challenge,
.case-study-card__solution {
  line-height: 1.7;
  color: #71717A;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9375rem;
}

.case-study-card__challenge {
  padding: 1.25rem;
  background: #141414;
  border-radius: 2px;
  border-left: 3px solid #F59E0B;
}

.case-study-card__solution {
  padding: 1.25rem;
  background: #141414;
  border-radius: 2px;
  border-left: 3px solid #22C55E;
}

.case-study-card__results {
  display: grid;
  gap: 0.75rem;
}

.case-study-card__result-item {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  padding: 0.875rem;
  background: #141414;
  border-radius: 2px;
  border: 1px solid rgba(34, 197, 94, 0.08);
  transition: border-color 0.2s ease;
  font-family: 'JetBrains Mono', monospace;
}

.case-study-card__result-item:hover {
  border-color: rgba(34, 197, 94, 0.25);
}

.case-study-card__result-item::before {
  content: '✓';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: rgba(34, 197, 94, 0.1);
  color: #22C55E;
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 2px;
  flex-shrink: 0;
  font-weight: 700;
  font-size: 0.75rem;
}

.case-study-card__result-item-text {
  flex: 1;
  line-height: 1.6;
  color: #71717A;
  font-size: 0.875rem;
  font-family: 'JetBrains Mono', monospace;
}

.case-study-card__metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  padding: 1.5rem;
  background: #141414;
  border: 1px solid rgba(34, 197, 94, 0.15);
  border-radius: 2px;
  margin-bottom: 1.75rem;
}

.case-study-card__metric {
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
}

.case-study-card__metric-value {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.375rem;
  color: #22C55E;
  font-family: 'JetBrains Mono', monospace;
}

.case-study-card__metric-label {
  display: block;
  font-size: 0.75rem;
  color: #71717A;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: 'JetBrains Mono', monospace;
}

.case-study-card__testimonial {
  padding: 1.5rem;
  background: #141414;
  border-radius: 2px;
  border-left: 3px solid #22C55E;
  position: relative;
  font-family: 'JetBrains Mono', monospace;
}

.case-study-card__testimonial::before {
  content: '"';
  position: absolute;
  top: -8px;
  left: 16px;
  font-size: 3rem;
  color: #22C55E;
  opacity: 0.15;
  font-family: 'JetBrains Mono', monospace;
  line-height: 1;
}

.case-study-card__testimonial-quote {
  font-size: 0.9375rem;
  font-style: italic;
  line-height: 1.7;
  margin-bottom: 0.875rem;
  color: #A1A1AA;
  font-family: 'JetBrains Mono', monospace;
}

.case-study-card__testimonial-author {
  font-weight: 600;
  color: #22C55E;
  font-size: 0.875rem;
  font-family: 'JetBrains Mono', monospace;
}

/* CTA Section */
.case-studies-cta {
  background: #0F0F0F;
  color: #D4D4D8;
  padding: 5rem 0;
  text-align: center;
  border-top: 1px solid rgba(34, 197, 94, 0.15);
  font-family: 'JetBrains Mono', monospace;
}

.case-studies-cta h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 1.5rem;
  color: #D4D4D8;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: -0.02em;
}

.case-studies-cta p {
  font-size: 1rem;
  margin-bottom: 2.5rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  color: #71717A;
  font-family: 'JetBrains Mono', monospace;
  line-height: 1.7;
}

.case-studies-cta__buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.case-studies-cta__note {
  margin-top: 1.5rem;
  font-size: 0.8125rem;
  color: #71717A;
  font-family: 'JetBrains Mono', monospace;
}

.case-studies-cta__note strong {
  color: #22C55E;
}

/* Responsive Design */
@media (max-width: 768px) {
  .case-studies-hero {
    padding: 6rem 0 3rem;
  }

  .case-studies-hero__stats {
    gap: 2rem;
  }

  .case-studies-hero__stat-value {
    font-size: 2rem;
  }

  .case-studies-filter {
    top: 60px;
  }

  .case-studies-filter__buttons {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 0.5rem;
  }

  .filter-btn {
    font-size: 0.75rem;
    padding: 0.5rem 1rem;
  }

  .case-study-card {
    padding: 1.5rem;
  }

  .case-study-card__header {
    flex-direction: column;
    gap: 0.875rem;
  }

  .case-study-card__client {
    font-size: 1.25rem;
  }

  .case-study-card__metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .case-studies-cta__buttons {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (max-width: 480px) {
  .case-studies-hero__stats {
    flex-direction: column;
    gap: 1.25rem;
  }

  .case-study-card__metrics {
    grid-template-columns: 1fr;
  }
}

/* Animation for filtering */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}