.sticky-filter {
  position: sticky;
  top: var(--space-md);
  z-index: 100;
  padding: 0 var(--space-md);
  margin-top: calc(var(--space-2xl) * -1);
  transition: transform 0.4s var(--ease-smooth), opacity 0.3s;
}
.sticky-filter.hidden {
  transform: translateY(-120%);
  opacity: 0;
  pointer-events: none;
}
.filter-wrapper {
  background: rgba(26, 26, 26, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  max-width: 1200px;
  margin: 0 auto;
  border: 1px solid rgba(212, 175, 55, 0.2);
}
.filter-input {
  flex: 1;
  min-width: 140px;
  padding: var(--space-xs) var(--space-sm);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-md);
  color: white;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.3s;
}
.filter-input::placeholder { color: rgba(255,255,255,0.6); }
.filter-input:focus {
  border-color: var(--gold);
  background: rgba(255,255,255,0.15);
}
.filter-input:is(select) {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' stroke='%23FFD700' stroke-width='2' viewBox='0 0 24 24'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 32px;
}
.btn-search {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-xs) 1.25rem;
  background: linear-gradient(135deg, var(--black-deep), var(--gray-darker));
  color: var(--gold);
  border: 1px solid var(--gold);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.3s;
}
.btn-search:hover {
  background: var(--gold);
  color: var(--black-deep);
  transform: scale(1.03);
}