/* ==========================================================================
   UNTERRO - CUSTOM CASE STUDIES PAGE COMPONENT STYLES
   ========================================================================== */

.case-studies-page {
  padding-top: 0; /* Starts from the very top under the header */
  padding-bottom: 60px;
  background-color: var(--color-bg-primary);
  overflow-x: hidden;
}

@media (min-width: 1024px) {
  .case-studies-page {
    padding-top: 0;
    padding-bottom: 100px;
  }
}

/* --------------------------------------------------------------------------
   1. Banner Hero Section
   -------------------------------------------------------------------------- */
.case-studies-banner {
  margin-top: 0;
  margin-bottom: var(--space-xl);
}

.case-studies-banner__wrapper {
  position: relative;
  width: 100%;
  height: 80vh; /* Dynamic 80% viewport height */
  border-radius: 0;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  padding: 100px var(--space-md) 40px; /* Header top padding clearance on mobile */
  box-sizing: border-box;
}

.case-studies-banner__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to right,
    rgba(16, 15, 14, 0.7) 0%,
    rgba(16, 15, 14, 0.5) 50%,
    rgba(16, 15, 14, 0.2) 100%
  );
  z-index: 1;
}

.case-studies-banner__content {
  position: relative;
  z-index: 2;
  max-width: 580px;
}

.case-studies-banner__subtitle {
  font-family: var(--font-family-sans);
  font-size: 11px;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.15em;
  color: var(--color-accent);
  display: block;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.case-studies-banner__title {
  font-family: var(--font-family-serif);
  font-size: clamp(2.5rem, 2.2rem + 1.5vw, 4rem);
  font-weight: var(--font-weight-light);
  color: #ffffff;
  line-height: 1.1;
  margin: 0 0 var(--space-sm) 0;
  letter-spacing: -0.01em;
}

.case-studies-banner__description {
  font-family: var(--font-family-sans);
  font-size: clamp(0.95rem, 0.9rem + 0.2vw, 1.15rem);
  font-weight: var(--font-weight-light);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  margin: 0;
}

@media (min-width: 768px) {
  .case-studies-banner__wrapper {
    height: 80vh;
    padding: 120px var(--space-xl) 40px; /* Header clearance on tablet */
  }
}

@media (min-width: 1024px) {
  .case-studies-banner__wrapper {
    height: 80vh;
    padding: 140px var(--space-xl) 40px; /* Header clearance on desktop */
  }
}

@media (min-width: 1440px) {
  .case-studies-banner__wrapper {
    height: 80vh;
    padding: 160px var(--space-xl) 40px; /* Larger header clearance */
  }
}

@media (min-width: 1920px) {
  .case-studies-banner__wrapper {
    height: 80vh;
    padding: 180px var(--space-xl) 40px; /* Ultra-wide header clearance */
  }
}

/* --------------------------------------------------------------------------
   2. Main Layout Context & Grid Space
   -------------------------------------------------------------------------- */
.case-studies-grid-section {
  padding-top: 20px; /* Aligned with homepage vertical gaps spacing */
  padding-bottom: 20px;
  box-sizing: border-box;
}

.case-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  width: 100%;
  box-sizing: border-box;
}

@media (min-width: 768px) {
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --------------------------------------------------------------------------
   3. Case Card Aesthetics (Consistency with Partners Page)
   -------------------------------------------------------------------------- */
.case-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg-primary);
  border: 1px solid rgba(0, 0, 0, 0.03);
  border-radius: 12px; /* Smooth card rounded corners */
  overflow: hidden;
  text-decoration: none;
  transition: all var(--transition-smooth);
}

.case-card:hover {
  border-color: rgba(173, 98, 47, 0.4);
  transform: translateY(-8px); /* Elevates card */
  box-shadow: 
    0 24px 48px -12px rgba(173, 98, 47, 0.35), 
    0 8px 20px -6px rgba(173, 98, 47, 0.15); /* Ambient copper-rose glow */
}

/* Zoom Image Effect */
.case-card__image-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--color-bg-secondary);
}

.case-card__image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.case-card:hover .case-card__image {
  transform: scale(1.03); /* Subtle zoom scale */
}

/* Card content body */
.case-card__content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-grow: 1;
}

.case-card__title {
  font-family: var(--font-family-serif);
  font-size: clamp(1.2rem, 1.1rem + 0.5vw, 1.6rem);
  font-weight: var(--font-weight-light);
  color: var(--color-text-primary);
  line-height: 1.25;
  margin: 0;
  transition: color var(--transition-fast);
}

.case-card:hover .case-card__title {
  color: var(--color-accent); /* Heading turns copper-rose on hover */
}

.case-card__description {
  font-family: var(--font-family-sans);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin: 0;
  flex-grow: 1;
}

.case-card__link {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-family-sans);
  font-size: 12px;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-top: 4px;
  transition: color var(--transition-fast);
}

.case-card__arrow {
  margin-left: 6px;
  transition: transform var(--transition-smooth);
}

.case-card:hover .case-card__arrow {
  transform: translateX(4px); /* Moves arrow slightly on hover */
}

/* --------------------------------------------------------------------------
   4. Large Monitor Scaling (Consistency with About & Homepage)
   -------------------------------------------------------------------------- */
@media (min-width: 1440px) {
  .case-studies-banner__subtitle {
    font-size: 13px;
  }

  .case-studies-banner__title {
    font-size: 3.75rem; /* Scales heading sizes to match About exactly */
  }

  .case-card__content {
    padding: 32px;
    gap: 16px;
  }

  .case-card__title {
    font-size: 1.85rem;
  }

  .case-card__description {
    font-size: 16px;
    line-height: 1.75;
  }

  .case-card__link {
    font-size: 13px;
  }
}

@media (min-width: 1920px) {
  .case-studies-banner__subtitle {
    font-size: 15px;
  }

  .case-studies-banner__title {
    font-size: 4.5rem; /* Ultra-wide scaling */
  }

  .case-card__content {
    padding: 40px;
    gap: 20px;
  }

  .case-card__title {
    font-size: 2.25rem;
  }

  .case-card__description {
    font-size: 18px;
    line-height: 1.8;
  }

  .case-card__link {
    font-size: 15px;
  }
}