/* ========== Referenzen-Seite ========== */

.references-page {
  min-height: 100vh;

  color: var(--foreground);
  background-color: var(--background);
}


/* ========== Referenzen ========== */

.references-section {
  padding-top: clamp(11rem, 15vw, 15rem);
  padding-bottom: clamp(6rem, 10vw, 9rem);
}


/* ---------- Einleitung ---------- */

.references-header {
  margin-bottom: clamp(3rem, 6vw, 5rem);

  display: grid;
  grid-template-columns:
    minmax(0, 1.05fr)
    minmax(22rem, 0.95fr);
  align-items: end;
  gap: clamp(3rem, 8vw, 8rem);
}

.references-page-title {
  margin: 0;

  color: var(--text-cream);

  font-family: var(--font-display);
  font-size: clamp(4.5rem, 8vw, 8rem);
  font-weight: 400;
  line-height: 0.82;
  letter-spacing: -0.05em;
}

.references-page-title span {
  display: block;

  color: var(--amber-500);
}

.references-intro {
  max-width: 35rem;

  margin: 0 0 0.5rem;

  color: var(--foreground);

  font-size: clamp(1rem, 1.3vw, 1.15rem);
  line-height: 1.75;

  opacity: 0.9;
}


/* ========== Projektfilter ========== */

.references-filter {
  margin-bottom: clamp(3.5rem, 6vw, 5rem);

  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.filter-button {
  min-height: 3rem;
  padding-inline: 1.5rem;

  color: var(--foreground);
  background-color: transparent;

  font-family: var(--font-mono);
  font-size: 0.63rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;

  border: 1px solid rgba(240, 230, 211, 0.16);
  cursor: pointer;

  transition:
    color 200ms ease,
    background-color 200ms ease,
    border-color 200ms ease,
    transform 200ms ease;
}

.filter-button:hover,
.filter-button:focus-visible {
  color: var(--amber-500);
  border-color: var(--amber-700);

  transform: translateY(-2px);
}

.filter-button.is-active {
  color: var(--primary-foreground);
  background-color: var(--amber-600);

  border-color: var(--amber-600);
}


/* ========== Projektraster ========== */

.references-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: clamp(2rem, 4vw, 3rem) clamp(1.5rem, 3vw, 2.5rem);
}


/* ---------- Projektkarte ---------- */

.reference-card {
  min-width: 0;
}

.reference-card[hidden] {
  display: none;
}


/* ---------- Projektbild ---------- */

.reference-image-wrapper {
  position: relative;

  aspect-ratio: 16 / 9;

  overflow: hidden;

  background-color: var(--bg-image);
}

.reference-image-wrapper::after {
  content: "";

  position: absolute;
  inset: 45% 0 0;
  z-index: 1;

  background:
    linear-gradient(
      180deg,
      transparent,
      rgba(10, 6, 4, 0.28)
    );

  pointer-events: none;
}

.reference-image {
  width: 100%;
  height: 100%;

  display: block;

  object-fit: cover;

  filter: grayscale(1);

  transition:
    filter 400ms ease,
    transform 600ms ease;
}

.reference-card:hover .reference-image {
  filter: grayscale(0);
  transform: scale(1.04);
}


/* ---------- Jahreszahl ---------- */

.reference-year {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 2;

  padding: 0.45rem 0.65rem;

  color: var(--amber-500);
  background-color: rgba(10, 6, 4, 0.9);

  font-family: var(--font-mono);
  font-size: 0.58rem;
  font-weight: 500;
  line-height: 1;
}


/* ---------- Projektinhalt ---------- */

.reference-content {
  padding-top: 1.4rem;
}

.reference-category {
  margin: 0;

  color: var(--amber-700);

  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  line-height: 1.5;
  text-transform: uppercase;
}

.reference-title {
  margin-top: 0.65rem;
  margin-bottom: 0;

  color: var(--text-cream);

  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2vw, 1.8rem);
  font-weight: 500;
  line-height: 1.2;

  transition: color 200ms ease;
}

.reference-card:hover .reference-title {
  color: var(--amber-500);
}

.reference-description {
  margin-top: 0.65rem;
  margin-bottom: 0;

  color: var(--foreground);

  font-size: 0.86rem;
  line-height: 1.65;

  opacity: 0.9;
}


/* ========== Kundenstimmen ========== */

.testimonials-section {
  padding-block: clamp(6rem, 10vw, 9rem);

  color: var(--foreground);
  background-color: var(--bg-section);

  border-top: 1px solid var(--border);
}

.testimonials-eyebrow {
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
}


/* ---------- Kundenstimmen-Raster ---------- */

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
}


/* ---------- Kundenstimme ---------- */

.testimonial-card {
  margin: 0;
  padding: clamp(2rem, 4vw, 3rem);

  display: flex;
  flex-direction: column;

  background-color: rgba(10, 6, 4, 0.25);
  border: 1px solid var(--border);

  transition:
    background-color 250ms ease,
    border-color 250ms ease,
    transform 250ms ease;
}

.testimonial-card:hover {
  background-color: var(--card);
  border-color: rgba(180, 83, 9, 0.35);

  transform: translateY(-4px);
}


/* ---------- Sterne ---------- */

.testimonial-stars {
  color: var(--amber-500);

  font-size: 1.1rem;
  letter-spacing: 0.08em;
}


/* ---------- Zitat ---------- */

.testimonial-quote {
  margin: 1.75rem 0 0;

  color: var(--text-cream);

  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  font-style: italic;
  line-height: 1.6;
}


/* ---------- Person ---------- */

.testimonial-person {
  margin-top: 2rem;
}

.testimonial-person strong {
  display: block;

  color: var(--text-cream);

  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
}

.testimonial-person span {
  display: block;

  margin-top: 0.35rem;

  color: var(--foreground);

  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.5;
}


/* ========== Referenzen Tablet ========== */

@media (max-width: 64rem) {
  .references-header {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .references-intro {
    max-width: 43rem;
  }

  .references-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}


/* ========== Referenzen Smartphone ========== */

@media (max-width: 40rem) {
  .references-section {
    padding-top: 8rem;
    padding-bottom: 5rem;
  }

  .references-page-title {
    font-size: clamp(3.5rem, 16vw, 5rem);
  }

  .references-filter {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .filter-button {
    width: 100%;
    padding-inline: 0.75rem;
  }

  .references-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }

  .testimonials-section {
    padding-block: 5rem;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 25rem) {
  .references-filter {
    grid-template-columns: 1fr;
  }
}