.post-filter-bar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.post-filter-label {
  font-size: 12px;
  color: var(--grey-7, #aaa);
  letter-spacing: 0.5px;
  margin-right: 2px;
  flex-shrink: 0;
  opacity: 0.75;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 15px;
  border-radius: 100px;
  border: 1.5px solid var(--red-4, #ffd0d0);
  background: var(--color-wrap, #fff);
  color: var(--grey-7, #888);
  font-size: 13px;
  font-family: inherit;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  position: relative;
  overflow: hidden;
  transition:
    color 0.22s,
    background 0.22s,
    border-color 0.22s,
    box-shadow 0.22s,
    transform 0.22s;
}

/* Shimmer sweep */
.filter-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -80%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.32),
    transparent
  );
  transform: skewX(-18deg);
  transition: left 0.55s ease;
  pointer-events: none;
}

.filter-btn:hover::after {
  left: 160%;
}

.filter-btn:hover {
  border-color: var(--color-link);
  color: var(--color-link);
  background: var(--red-6, #fff7f7);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.07);
}

.filter-btn:active {
  transform: translateY(0);
  box-shadow: none;
}

.filter-btn.active {
  background: var(--color-link);
  border-color: var(--color-link);
  color: #fff;
  font-weight: 500;
  transform: none;
  box-shadow:
    0 4px 14px var(--color-red-3-shadow, rgba(255, 78, 78, 0.32)),
    0 1px 3px rgba(0, 0, 0, 0.1);
}

.filter-btn.active:hover {
  transform: none;
  box-shadow:
    0 6px 18px var(--color-red-3-shadow, rgba(255, 78, 78, 0.4)),
    0 2px 5px rgba(0, 0, 0, 0.1);
}

.filter-btn.active::after {
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.16),
    transparent
  );
}

/* Count badge */
.filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  border-radius: 9px;
  background: rgba(0, 0, 0, 0.1);
  font-size: 11px;
  line-height: 1;
  font-weight: 400;
  transition: background 0.22s;
}

.filter-btn.active .filter-count {
  background: rgba(255, 255, 255, 0.28);
}

/* Hidden posts */
.post-wrapper[aria-hidden="true"] {
  display: none;
}

/* Dark mode */
[data-theme="dark"] .filter-btn {
  background: var(--color-wrap);
  border-color: var(--red-4, rgba(255, 208, 208, 0.4));
  color: var(--grey-7);
}

[data-theme="dark"] .filter-btn:hover {
  background: var(--red-5, rgba(255, 228, 228, 0.12));
  border-color: var(--color-link);
  color: var(--color-link);
}

[data-theme="dark"] .filter-btn.active {
  background: var(--color-selected-bg, #6f5088);
  border-color: var(--color-selected-border, #9a79b2);
  color: var(--color-selected-text, #f2e8f7);
  transform: translateY(-1px);
  box-shadow: 0 3px 14px var(--color-red-3-shadow, rgba(132, 95, 159, 0.34));
}

[data-theme="dark"] .filter-btn.active:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--color-red-3-shadow, rgba(132, 95, 159, 0.34));
}

[data-theme="dark"] .filter-btn::after {
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.08),
    transparent
  );
}

@media (max-width: 768px) {
  .post-filter-bar {
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-top: 6px;
  }

  .post-filter-bar::-webkit-scrollbar {
    display: none;
  }

  .post-filter-label,
  .filter-btn {
    flex: 0 0 auto;
  }
}