/*
  features.css
  Mobile: 1列 / 640px~: 4列グリッド(各カード2列分、5枚目は中央) / 960px~: 6列グリッド(3+2、下段中央寄せ)
*/

.features {
  background-color: var(--color-bg);
}

.feature-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.5rem;
  margin-top: 4rem;
}

.feature-card {
  padding-top: 1.75rem;
  border-top: 1px solid var(--color-border);
}

.feature-card__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

.feature-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-full);
  background-color: var(--color-bg-alt);
}

.feature-card__icon img {
  width: 1.5rem;
  height: 1.5rem;
}

.feature-card__num {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 2.6rem;
  line-height: 1;
  color: var(--color-accent-pale);
}

.feature-card__title {
  margin-top: 1.25rem;
  font-size: 1.1rem;
  line-height: 1.375;
}

.feature-card__text {
  max-width: 20rem;
  margin-top: 0.75rem;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--color-text-muted);
}

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 3.5rem 3rem;
  }

  .feature-card {
    grid-column: span 2;
  }

  .feature-card:nth-child(5) {
    grid-column: 2 / span 2;
  }

  .feature-card__text {
    font-size: var(--fs-body);
  }
}

@media (min-width: 768px) {
  .features {
    padding-block: 9rem;
  }
}

@media (min-width: 960px) {
  .feature-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .feature-card:nth-child(4) {
    grid-column: 2 / span 2;
  }

  .feature-card:nth-child(5) {
    grid-column: 4 / span 2;
  }
}