/* Key Expertise — spotlight bento cards. See ./README.md */
.wm-expertise {
  --wm-accent: #2b50ff;
  --wm-glow: 90, 124, 255;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.4rem;
  perspective: 1400px;
}
.wm-expertise__item {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2.6rem;
  min-height: 23rem;
  padding: 2.6rem;
  border-radius: 1.8rem;
  background: linear-gradient(
    160deg,
    rgba(var(--base-opp-rgb), 0.055),
    rgba(var(--base-opp-rgb), 0.015)
  );
  border: 1px solid rgba(140, 147, 161, 0.16);
  overflow: hidden;
  transform-style: preserve-3d;
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg))
    translateZ(var(--tz, 0px));
  transition:
    transform 0.26s ease,
    border-color 0.5s,
    box-shadow 0.5s,
    opacity 0.7s,
    translate 0.7s;
}
.wm-expertise__item::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s;
  background: radial-gradient(
    24rem 24rem at var(--mx, 50%) var(--my, 0%),
    rgba(var(--wm-glow), 0.22),
    transparent 62%
  );
}
.wm-expertise__item:hover {
  --tz: 22px;
  border-color: rgba(var(--wm-glow), 0.5);
  box-shadow: 0 2.6rem 5rem rgba(0, 0, 0, 0.5);
}
.wm-expertise__item:hover::before {
  opacity: 1;
}
.wm-expertise__ghost {
  position: absolute;
  right: -0.4rem;
  bottom: -3rem;
  font-size: 11rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.05em;
  color: rgba(var(--base-opp-rgb), 0.05);
  pointer-events: none;
  z-index: 0;
  transition:
    color 0.5s,
    transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.wm-expertise__item:hover .wm-expertise__ghost {
  color: rgba(var(--wm-glow), 0.14);
  transform: translateY(-0.6rem);
}
.wm-expertise__top {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.wm-expertise__num {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--t-medium);
}
.wm-expertise__icon {
  width: 3.8rem;
  height: 3.8rem;
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(140, 147, 161, 0.3);
  color: var(--t-bright);
  transition:
    transform 0.5s cubic-bezier(0.2, 0.7, 0.2, 1),
    background 0.5s,
    border-color 0.5s,
    color 0.5s,
    box-shadow 0.5s;
}
.wm-expertise__icon svg {
  width: 1.7rem;
  height: 1.7rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.wm-expertise__item:hover .wm-expertise__icon {
  transform: scale(1.08);
  background: var(--wm-accent);
  border-color: var(--wm-accent);
  color: #fff;
  box-shadow: 0 0.7rem 2rem rgba(var(--wm-glow), 0.55);
}
.wm-expertise__body {
  position: relative;
  z-index: 2;
}
.wm-expertise__name {
  font-size: 1.95rem;
  font-weight: 600;
  line-height: 1.12;
  color: var(--t-bright);
  margin: 0;
}
.wm-expertise__desc {
  font-size: 1.32rem;
  line-height: 1.45;
  color: var(--t-medium);
  margin: 0.9rem 0 0;
  max-height: 0;
  opacity: 0;
  transform: translateY(0.6rem);
  overflow: hidden;
  transition:
    max-height 0.55s,
    opacity 0.45s,
    transform 0.5s;
}
.wm-expertise__item:hover .wm-expertise__desc {
  max-height: 14rem;
  opacity: 1;
  transform: none;
}
.wm-expertise__bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  z-index: 2;
  background: linear-gradient(90deg, var(--wm-accent), rgba(var(--wm-glow), 1));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.wm-expertise__item:hover .wm-expertise__bar {
  transform: scaleX(1);
}
.wm-expertise__item.wm-pre {
  opacity: 0;
  translate: 0 3rem;
}
.wm-expertise__item.wm-in {
  opacity: 1;
  translate: 0 0;
}
@media (max-width: 1199px) {
  .wm-expertise {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 991px) {
  .wm-expertise__item {
    transform: none !important;
  }
  .wm-expertise__desc {
    max-height: 14rem;
    opacity: 1;
    transform: none;
  }
}
@media (max-width: 575px) {
  .wm-expertise {
    grid-template-columns: 1fr;
  }
}