.hero-card {
  overflow: hidden;
  border: 1px solid #c9dfcf;
  border-radius: var(--radius);
  background: rgba(255,255,255,.94);
  box-shadow: var(--shadow);
}

.hero-card-inner {
  padding: 0;
}

.countdown-panel {
  display: grid;
}

.countdown-group {
  padding: 21px 20px 22px;
  border-bottom: 1px solid var(--line);
}

.countdown-group:last-child {
  border-bottom: 0;
}

.countdown-group h3 {
  margin: 0 0 13px;
  color: var(--green-950);
  font-size: .95rem;
  text-align: center;
}

.countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 7px;
}

.countdown-cell {
  padding: 10px 4px;
  border-radius: 8px;
  background: var(--green-050);
  text-align: center;
}

.countdown-cell strong {
  display: block;
  color: var(--green-800);
  font-size: 1.16rem;
  line-height: 1.05;
}

.countdown-cell span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: .62rem;
  font-weight: 800;
  letter-spacing: .035em;
  text-transform: uppercase;
}

.countdown-group.dark .countdown-cell {
  background: #eef4f0;
}

@media (max-width: 420px) {
  .countdown-grid {
    grid-template-columns: 1fr 1fr;
  }
}