/* MeroKalam Reusable Topic Cluster for related blog posts */

.mk-topic-cluster {
  margin: 35px 0;
  padding: 24px;
  border: 1px solid #dbeafe;
  border-radius: 18px;
  background: linear-gradient(135deg, #f8fbff 0%, #ffffff 55%, #f5f7ff 100%);
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.06);
}

.mk-topic-cluster * {
  box-sizing: border-box;
}

.mk-topic-label {
  display: inline-block;
  margin-bottom: 10px;
  padding: 6px 12px;
  border-radius: 999px;
  background: #e0ecff;
  color: #1d4ed8;
  font-size: 13px;
  font-weight: 700;
}

.mk-topic-cluster h2 {
  margin: 0 0 10px;
  color: #0f172a;
  font-size: 28px;
  line-height: 1.25;
}

.mk-topic-intro {
  margin: 0 0 22px;
  color: #475569;
  font-size: 16px;
  line-height: 1.6;
}

.mk-topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.mk-topic-card {
  display: block;
  position: relative;
  min-height: 170px;
  padding: 18px 18px 48px;
  border: 1px solid #dbeafe;
  border-radius: 14px;
  background: #ffffff;
  color: inherit;
  text-decoration: none;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.mk-topic-card:hover,
.mk-topic-card:focus {
  border-color: #3b82f6;
  transform: translateY(-3px);
  box-shadow: 0 12px 25px rgba(37, 99, 235, 0.14);
  outline: none;
}

.mk-topic-tag {
  display: inline-block;
  margin-bottom: 10px;
  padding: 5px 9px;
  border-radius: 999px;
  background: #eff6ff;
  color: #2563eb;
  font-size: 12px;
  font-weight: 700;
}

.mk-topic-card h3 {
  margin: 0 0 9px;
  color: #0f172a;
  font-size: 17px;
  line-height: 1.35;
}

.mk-topic-card p {
  margin: 0;
  color: #64748b;
  font-size: 14.5px;
  line-height: 1.55;
}

.mk-topic-arrow {
  position: absolute;
  right: 16px;
  bottom: 14px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #2563eb;
  color: #ffffff;
  font-weight: 800;
}

.mk-topic-card:hover .mk-topic-arrow,
.mk-topic-card:focus .mk-topic-arrow {
  background: #1d4ed8;
}

/* Optional color themes */
.mk-topic-cluster.is-green {
  border-color: #bbf7d0;
  background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 55%, #f7fee7 100%);
}

.mk-topic-cluster.is-green .mk-topic-label,
.mk-topic-cluster.is-green .mk-topic-tag {
  background: #dcfce7;
  color: #15803d;
}

.mk-topic-cluster.is-green .mk-topic-card {
  border-color: #bbf7d0;
}

.mk-topic-cluster.is-green .mk-topic-card:hover,
.mk-topic-cluster.is-green .mk-topic-card:focus {
  border-color: #22c55e;
  box-shadow: 0 12px 25px rgba(34, 197, 94, 0.14);
}

.mk-topic-cluster.is-green .mk-topic-arrow {
  background: #16a34a;
}

.mk-topic-cluster.is-purple {
  border-color: #e9d5ff;
  background: linear-gradient(135deg, #faf5ff 0%, #ffffff 55%, #f5f3ff 100%);
}

.mk-topic-cluster.is-purple .mk-topic-label,
.mk-topic-cluster.is-purple .mk-topic-tag {
  background: #f3e8ff;
  color: #7e22ce;
}

.mk-topic-cluster.is-purple .mk-topic-card {
  border-color: #e9d5ff;
}

.mk-topic-cluster.is-purple .mk-topic-card:hover,
.mk-topic-cluster.is-purple .mk-topic-card:focus {
  border-color: #a855f7;
  box-shadow: 0 12px 25px rgba(168, 85, 247, 0.14);
}

.mk-topic-cluster.is-purple .mk-topic-arrow {
  background: #9333ea;
}

@media (max-width: 900px) {
  .mk-topic-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .mk-topic-cluster {
    padding: 18px;
  }

  .mk-topic-cluster h2 {
    font-size: 23px;
  }

  .mk-topic-grid {
    grid-template-columns: 1fr;
  }
}