.ach-tab-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.ach-tab-bar .btn {
  font-size: 12px;
  padding: 4px 10px;
  opacity: 0.65;
}

.ach-tab-bar .btn.active {
  opacity: 1;
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.ach-category {
  margin-bottom: 24px;
}

.ach-cat-title {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.ach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 10px;
}

.ach-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 12px 8px 10px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  text-align: center;
  transition: box-shadow .15s, border-color .15s;
  position: relative;
  min-height: 90px;
  justify-content: center;
}

.ach-cell.unlocked {
  border-color: rgba(237, 194, 46, 0.45);
  box-shadow: 0 0 0 1px rgba(237, 194, 46, 0.25), var(--shadow-sm);
}

.ach-cell.locked {
  opacity: 0.42;
}

.ach-icon {
  font-size: 1.8rem;
  line-height: 1;
}

.ach-icon.locked-icon {
  font-size: 1.4rem;
  filter: grayscale(1);
}

.ach-name {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-strong);
  line-height: 1.25;
}

.ach-date {
  font-size: 9px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.3px;
}

.ach-hint {
  font-size: 10px;
  color: var(--text-muted);
  line-height: 1.3;
}