.tool-ui {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.drop-zone {
  border: 2px dashed var(--color-border);
  border-radius: 12px;
  padding: 2.5rem;
  text-align: center;
  cursor: pointer;
  background: var(--color-surface);
  transition: border-color 0.2s, background-color 0.2s;
}

.drop-zone.drag-over {
  border-color: var(--color-accent);
  background: rgba(79, 142, 247, 0.05);
}

.file-label {
  color: var(--color-accent);
  cursor: pointer;
  text-decoration: underline;
  font-weight: 500;
}

.compress-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.25rem;
}

.file-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.875rem;
}

.file-title {
  font-weight: 600;
  color: var(--color-snow);
  word-break: break-all;
}

.level-picker {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.75rem;
}

.level-option {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  background: #0F1117;
}

.level-option:hover {
  border-color: var(--color-accent);
}

.level-option.selected {
  border-color: var(--color-accent);
  background: rgba(79, 142, 247, 0.08);
}

.level-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-snow);
}

.level-desc {
  font-size: 0.75rem;
  color: var(--color-muted);
  line-height: 1.3;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  text-align: center;
}

.stat-box {
  background: #0F1117;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0.75rem 0.5rem;
}

.stat-label {
  font-size: 0.725rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.stat-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-snow);
}

.stat-value.highlight {
  color: #4ade80;
}

.btn-primary {
  background: var(--color-accent);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  transition: opacity 0.2s;
  text-align: center;
}

.btn-primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-primary:hover:not(:disabled) {
  opacity: 0.85;
}

.btn-secondary {
  background: transparent;
  color: var(--color-snow);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 0.4rem 0.8rem;
  font-size: 0.825rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.ad-post-op {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem;
  font-size: 0.75rem;
  color: var(--color-muted);
  text-align: center;
}