.header {
  padding: 8rem 2rem 3rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.header-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1rem;
}

.header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--text-bright);
  letter-spacing: -1px;
  margin-bottom: 0.75rem;
}

.header p {
  color: var(--text-dim);
  font-size: 0.95rem;
}

.filter-bar {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
  position: sticky;
  top: 60px;
  z-index: 50;
}

.filter-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 0.75rem;
  padding: 0.35rem 0.85rem;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.15s;
  letter-spacing: 0.05em;
}
.filter-btn:hover { border-color: var(--green); color: var(--green); }
.filter-btn.active { background: var(--green); color: #000; border-color: var(--green); font-weight: 700; }

.themes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1px;
  background: var(--border);
  padding: 1px;
}

.theme-tile {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem;
  min-height: 130px;
  cursor: default;
  transition: transform 0.15s, box-shadow 0.15s;
  position: relative;
}

.theme-tile:hover {
  transform: scale(1.02);
  z-index: 2;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

.theme-name {
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.theme-pkg {
  font-size: 0.65rem;
  opacity: 0.5;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.swatches {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.swatch {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .themes-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
}