/* ============================================================
   Materialien — 4-Card-Grid
   ============================================================ */

.material-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.material-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: clamp(1.5rem, 2.5vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  position: relative;
  transition: border-color 0.3s ease, transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}


.material-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.material-card:hover {
  border-color: var(--color-border-bold);
  transform: translateY(-3px);
}

.material-card:hover::before {
  transform: scaleX(1);
}

.material-card__name {
  font-family: 'Geist', sans-serif;
  font-weight: 600;
  font-size: clamp(1.75rem, 1.25rem + 1.5vw, 2.25rem);
  line-height: 1;
  letter-spacing: -0.025em;
  color: var(--color-text-strong);
}

.material-card__sub {
  font-family: 'Geist Mono', monospace;
  font-size: var(--fs-mono-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text);
}

.material-card__text {
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--color-text);
  margin-top: var(--space-2xs);
}

.material-card__tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px dashed var(--color-border-bold);
}

.material-card__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.7rem 0.35rem 0.55rem;
  border-radius: 999px;
  font-family: 'Geist', sans-serif;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  border: 1px solid;
  white-space: nowrap;
}

.material-card__tag-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.material-card__tag-icon svg {
  width: 16px;
  height: 16px;
}

/* ---------- Tag-Farbpalette pro Eigenschaft ---------- */

/* Mechanik — anthrazit, technisch */
.material-card__tag--mech {
  background: rgba(46, 56, 64, 0.07);
  color: #2E3840;
  border-color: rgba(46, 56, 64, 0.18);
}

/* Thermal/Hitze — warm-orange */
.material-card__tag--thermal {
  background: rgba(216, 110, 60, 0.10);
  color: #B25027;
  border-color: rgba(216, 110, 60, 0.25);
}

/* Wasser — kuehl-blau */
.material-card__tag--water {
  background: rgba(58, 124, 165, 0.10);
  color: #1F6491;
  border-color: rgba(58, 124, 165, 0.24);
}

/* Praezision/Mass — Brand-Gruen */
.material-card__tag--precision {
  background: rgba(2, 72, 2, 0.07);
  color: var(--color-green);
  border-color: rgba(2, 72, 2, 0.22);
}

/* Flammschutz — gedaempftes Rot */
.material-card__tag--fire {
  background: rgba(176, 60, 47, 0.10);
  color: #8E2A20;
  border-color: rgba(176, 60, 47, 0.25);
}

/* Chemikalien — gedaempftes Violett */
.material-card__tag--chem {
  background: rgba(122, 70, 165, 0.10);
  color: #5F348A;
  border-color: rgba(122, 70, 165, 0.24);
}

.material-grid__note {
  margin-top: var(--space-md);
  font-family: 'Geist Mono', monospace;
  font-size: var(--fs-mono-sm);
  color: var(--color-text);
  line-height: 1.55;
  padding: var(--space-md);
  border: 1px dashed var(--color-border-bold);
  background: var(--color-white);
}

@media (max-width: 1100px) {
  .material-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 880px) {
  /* Hover-Effekt auf Touch deaktivieren */
  .material-card:hover {
    transform: none;
    border-color: var(--color-border);
  }
  .material-card:hover::before {
    transform: scaleX(0);
  }
}

@media (max-width: 540px) {
  .material-grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
  .material-card {
    padding: 1.4rem 1.25rem;
  }
  .material-card__name {
    font-size: 1.6rem;
  }
}