.case-study-theatron {
  --color-primary: var(--color-theatron);
}
.case-study-nefer {
  --color-primary: var(--color-nefer);
}
.case-study-cor {
  --color-primary: var(--color-casa-oro-real);
}
.case-study-tb {
  --color-primary: var(--color-tan-bonitos);
}

.cs-hero {
  position: relative;
  height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  z-index: 1;
}

.cs-hero::before {
  content: "";
  position: absolute;
  width: 135vw;
  height: 130vw;
  top: -95vw;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-text-light);
  border-radius: 50%;
  z-index: -1;
}

.cs-hero h1 {
  font-size: clamp(2.5rem, 8vw, 6rem);
  color: var(--color-primary);
  margin: 0;
  font-weight: 700;
  font-style: italic;
}

.cs-hero .hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: var(--color-background);
  margin: var(--spacing-unit) 0;

  margin-bottom: 135px;
}

.case-study-content {
  background-color: var(--color-background);
  padding-top: calc(var(--spacing-unit) * 10);
}

.cs-section {
  max-width: 900px;
  margin: 0 auto calc(var(--spacing-unit) * 12) auto;
  border-bottom: 1px solid var(--color-surface);
  padding-bottom: calc(var(--spacing-unit) * 8);
}
.cs-section:last-of-type {
  border-bottom: none;
}

.cs-section h2 {
  color: var(--color-primary);
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: calc(var(--spacing-unit) * 4);
}

.cs-section p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: calc(var(--spacing-unit) * 3);
}

.cs-intro-image {
  margin-bottom: calc(var(--spacing-unit) * 6);
}
.cs-intro-image img {
  display: block;
  margin: 0 auto;
  max-height: 550px;
  max-width: 600px;
}
.cs-summary {
  font-size: 1.25rem !important;
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
.cs-at-a-glance {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: calc(var(--spacing-unit) * 4);
  background-color: var(--color-surface);
  padding: calc(var(--spacing-unit) * 4);
  text-align: center;
  margin-top: calc(var(--spacing-unit) * 6);
}
.glance-item h4 {
  color: var(--color-primary);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-unit);
}

.cs-solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: calc(var(--spacing-unit) * 4);
  margin-top: calc(var(--spacing-unit) * 4);
}
.solution-item {
  padding: calc(var(--spacing-unit) * 2);
}
.solution-item img {
  width: 100%;
  height: auto;
  margin-bottom: calc(var(--spacing-unit) * 2);
}
.solution-item h4 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-unit);
}
.cs-insight {
  background-color: var(--color-surface);
  padding: calc(var(--spacing-unit) * 3);
  border-left: 4px solid var(--color-primary);
  font-style: italic;
}

.case-video {
  margin: auto;
  margin-bottom: 30px;
  width: 600px;
  height: auto;
  display: block;
}

.cs-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: calc(var(--spacing-unit) * 2);
  margin-top: calc(var(--spacing-unit) * 4);
}
.cs-gallery img {
  width: 100%;
  height: auto;
  border: 1px solid var(--color-surface);
}
.cs-cta-container {
  text-align: center;
  margin-top: calc(var(--spacing-unit) * 6);
}

.cs-takeaways-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--spacing-unit) * 3);
}
.takeaway-item {
  background-color: var(--color-surface);
  padding: calc(var(--spacing-unit) * 3);
}
.takeaway-item h4 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-unit);
}

.cs-testimonial {
  background-color: var(--color-surface);
  border-left: 4px solid var(--color-primary);
  padding: calc(var(--spacing-unit) * 4);
  margin: calc(var(--spacing-unit) * 6) 0;
}
.cs-testimonial p {
  font-style: italic;
  font-size: 1.2rem;
  margin: 0;
}
.cs-testimonial span {
  display: block;
  margin-top: var(--spacing-unit);
  opacity: 0.7;
  font-size: 0.9rem;
}

.comparison-item img {
  display: block;
  margin: 0 auto;

  width: 600px;
}

.module-visual video {
  display: block;
  margin: 0 auto;

  width: 450px;
}

.gallery-item-full {
  margin-bottom: calc(var(--spacing-unit) * 6);
}

.gallery-item-full h4 {
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--spacing-unit);
}

.gallery-item-full p {
  text-align: center;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
.gallery-item-full img {
  width: 100%;
  height: auto;
  margin-top: calc(var(--spacing-unit) * 2);
}

.glance-item h4 {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-unit);
}

.cs-final-thoughts h2 {
  margin-bottom: calc(var(--spacing-unit) * 4);
}

.takeaways-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: calc(var(--spacing-unit) * 3);
}

.final-cta-section {
  background-color: var(--color-surface);
  text-align: center;
  padding: calc(var(--spacing-unit) * 10) calc(var(--spacing-unit) * 2);
  position: relative;
  z-index: 5;
}

.final-cta-section h2 {
  font-size: calc(1.5rem + 1vw);
  color: var(--color-primary);
  margin-bottom: calc(var(--spacing-unit) * 4);
}




.final-cta-section .final-cta-subtitle {
  max-width: 600px;
  margin: calc(var(--spacing-unit) * -2) auto calc(var(--spacing-unit) * 4) auto;
  font-size: 1.1rem;
  color: var(--color-secondary-text);
}

.final-cta-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: calc(var(--spacing-unit) * 3);
}

.final-cta-section .cta-button-secondary {
  display: inline-block;
  background-color: transparent;
  color: var(--color-text-light);
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 4);
}

.final-cta-section .cta-button-secondary:hover {
  background-color: var(--color-surface);
  color: var(--color-primary);
  transform: translateY(-3px);
}

.project-nav {
  background-color: var(--color-background);
  border-top: 1px solid var(--color-surface);
  padding: calc(var(--spacing-unit) * 2) 0;
  position: sticky;
  bottom: 0;
  z-index: 900;
}

.project-nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 calc(var(--spacing-unit) * 2);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.project-nav-link {
  color: var(--color-text-light);
  text-decoration: none;
  font-family: var(--font-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-unit);
  opacity: 0.8;
  transition: all var(--transition-fast);
}

.project-nav-link:hover {
  opacity: 1;
  color: var(--color-primary);
}

.project-nav-link.home {
  font-size: 1.2rem;
}

.cs-key-question {
  background-color: var(--color-surface);
  padding: calc(var(--spacing-unit) * 3);
  border-left: 4px solid var(--color-primary);
  font-size: 1.2rem;
  margin-top: calc(var(--spacing-unit) * 4);
}

.cs-multi-module-section {
  margin-top: calc(var(--spacing-unit) * 6);
  display: flex;
  flex-direction: column;
  gap: calc(var(--spacing-unit) * 8);
}

.cs-module {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--spacing-unit) * 5);
  align-items: center;
}

.cs-module.reverse {
  grid-template-areas: "text visual";
}
.cs-module.reverse .module-visual {
  grid-area: visual;
}
.cs-module.reverse .module-text {
  grid-area: text;
}

.module-visual img {
  width: 100%;
  height: auto;
  padding: var(--spacing-unit);
}

.module-text h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-unit);
}

.takeaway-item ul {
  list-style: none;
  padding-left: 0;
}

.takeaway-item li {
  position: relative;
  padding-left: calc(var(--spacing-unit) * 3);
  margin-bottom: var(--spacing-unit);
}

.takeaway-item li::before {
  content: "■";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-size: 0.8em;
}

@media (max-width: 900px) {
  .cs-comparison,
  .takeaways-grid,
  .cs-module,
  .cs-module.reverse {
    grid-template-columns: 1fr;
    grid-template-areas: unset;
  }
  .cs-module.reverse .module-visual,
  .cs-module.reverse .module-text {
    grid-area: unset;
  }
  .module-text {
    text-align: center;
  }
}

@media (max-width: 700px) {
  .cs-hero h1 {
    font-size: clamp(2rem, 12vw, 3.5rem);
  }
  .cs-section h2 {
    font-size: calc(1.3rem + 2vw);
  }
  .cs-summary {
    font-size: 1.1rem !important;
  }

  .cs-hero {
    height: 50vh;
    justify-content: flex-end;
    padding-bottom: 150px;
  }
  .cs-hero::before {
    width: 150vw;
    height: 150vw;
    top: -60vw;
  }

  .cs-hero .hero-subtitle {
    margin-bottom: 0;
  }

  .cs-intro-image img,
  .module-visual img,
  .comparison-item img,
  .cs-gallery img,
  .module-visual video,
  .comparison-item video,
  .case-video {
    width: 100%;
    max-width: 100%;
    height: auto;
  }
  .cs-intro-image,
  .module-visual {
    padding: 0;
  }

  .cs-section p,
  .cs-insight,
  .cs-key-question,
  .cs-testimonial p,
  .cs-testimonial span,
  .takeaway-item p,
  .takeaway-item li {
    text-align: left;
  }
  .cs-summary,
  .glance-item p,
  .comparison-item h3,
  .comparison-item p,
  .cs-cta-container,
  .cs-final-thoughts h2,
  .final-cta-section h2 {
    text-align: center;
  }

  .project-nav {
    padding: calc(var(--spacing-unit) * 1.5) 0;
  }

  .project-nav-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: calc(var(--spacing-unit) * 2);
  }

  .project-nav-link {
    font-size: 0.85rem;
    line-height: 1.3;
    white-space: normal;
    max-width: 90px;
  }

  .project-nav-link:first-child {
    justify-self: start;
    text-align: left;
  }

  .project-nav-link.home {
    font-size: 1rem;
    justify-self: center;
  }

  .project-nav-link:last-child {
    justify-self: end;
    text-align: right;
  }
}

@media (max-width: 400px) {
  .cs-hero .hero-content {
    width: 140vw;
    padding-bottom: 10px;
  }

  .cs-hero .hero-subtitle {
    margin: auto;
    width: 250px;
    font-size: 1rem;
    line-height: 1.4;
  }
}