.know-bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-flow: dense;
  gap: 1.2rem;
}
@media(max-width:991px) { .know-bento { grid-template-columns: repeat(2, 1fr); } }
@media(max-width:575px) { .know-bento { grid-template-columns: 1fr; } }

.know-kcard {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.6rem;
  position: relative;
  overflow: hidden;
  transition: transform .25s, border-color .25s, box-shadow .25s;
}
.know-kcard.featured { grid-column: span 2; }
@media(max-width:575px) { .know-kcard.featured { grid-column: span 1; } }

.know-kcard::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(107,92,255,.05) 0%, transparent 55%);
  pointer-events: none;
}
.know-kcard::after {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--p500), var(--p300), transparent);
  transform: scaleX(0); transform-origin: left; transition: transform .4s ease;
}
.know-kcard:hover { transform: translateY(-4px); border-color: var(--border2); box-shadow: 0 16px 40px rgba(107,92,255,.1); }
.know-kcard:hover::after { transform: scaleX(1); }

.know-deco {
  position: absolute; bottom: -12px; right: -12px;
  width: 90px; height: 90px;
  background-image: radial-gradient(rgba(139,61,255,.22) 1px, transparent 1px);
  background-size: 10px 10px;
  opacity: 0; transition: opacity .3s; pointer-events: none;
}
.know-kcard:hover .know-deco { opacity: 1; }

.know-khead {
  display: flex; align-items: center; justify-content: space-between; margin-bottom: .85rem;
}
.know-kicon {
  font-size: 1.55rem; color: var(--p400); line-height: 1;
  display: inline-block;
  transition: transform .4s cubic-bezier(.34,1.56,.64,1), color .3s, filter .3s;
}
.know-kcard.featured .know-kicon { font-size: 1.9rem; }
.know-kcard:hover .know-kicon {
  transform: scale(1.45) rotate(-10deg);
  color: var(--p200);
  filter: drop-shadow(0 0 10px rgba(139,61,255,.7));
}

.know-cat {
  font-family: var(--font-mono); font-size: .58rem; letter-spacing: 2px; text-transform: uppercase;
  color: var(--p400); background: rgba(107,92,255,.1); border: 1px solid var(--border);
  padding: .2rem .65rem;
}

.know-ktitle {
  font-size: .93rem; font-weight: 600; color: var(--text); line-height: 1.3; margin-bottom: 1rem;
}
.know-kcard.featured .know-ktitle { font-size: 1.1rem; }

.know-tags { display: flex; flex-wrap: wrap; gap: .45rem; margin-bottom: .9rem; }

.know-tag {
  font-family: var(--font-mono);
  font-size: .71rem;
  font-weight: 500;
  letter-spacing: .4px;
  padding: .38rem .9rem;
  background: rgba(139,61,255,.1);
  color: var(--p200);
  border: 1px solid rgba(107,92,255,.28);
  display: inline-block;
  transition: background .22s, border-color .22s, color .22s, box-shadow .22s,
              transform .35s cubic-bezier(.34,1.56,.64,1);
}
.know-kcard.featured .know-tag { font-size: .76rem; padding: .42rem 1rem; }

.know-kcard:hover .know-tag {
  background: rgba(139,61,255,.22);
  border-color: var(--p400);
  color: var(--p100);
  box-shadow: 0 0 10px rgba(107,92,255,.2);
  transform: scale(1.08) translateY(-2px);
}
.know-kcard:hover .know-tag:nth-child(1) { transition-delay:.03s }
.know-kcard:hover .know-tag:nth-child(2) { transition-delay:.07s }
.know-kcard:hover .know-tag:nth-child(3) { transition-delay:.11s }
.know-kcard:hover .know-tag:nth-child(4) { transition-delay:.15s }
.know-kcard:hover .know-tag:nth-child(5) { transition-delay:.19s }
.know-kcard:hover .know-tag:nth-child(6) { transition-delay:.23s }
.know-kcard:hover .know-tag:nth-child(7) { transition-delay:.27s }
.know-kcard:hover .know-tag:nth-child(8) { transition-delay:.31s }

.know-tag:hover {
  transform: scale(1.18) translateY(-4px) !important;
  background: rgba(139,61,255,.35) !important;
  border-color: var(--p300) !important;
  box-shadow: 0 0 18px rgba(107,92,255,.45), 0 4px 12px rgba(0,0,0,.3) !important;
  color: #fff !important;
  transition-delay: 0s !important;
}

.know-kdesc {
  font-size: .75rem; color: var(--muted); line-height: 1.75;
  padding-top: .75rem; border-top: 1px solid var(--border);
  opacity: .6; transition: opacity .25s;
}
.know-kcard:hover .know-kdesc { opacity: 1; }