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

.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 2.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s;
  background: var(--bg);
}
.drop-zone.drag-over { border-color: var(--accent); background: var(--accent-dim); }
.file-label { color: var(--accent); cursor: pointer; text-decoration: underline; }

.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
}

.control-box {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.control-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
}

.custom-select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  font-size: 0.9rem;
  outline: none;
  font-family: 'Inter', sans-serif;
}
.custom-select:focus {
  border-color: var(--accent);
}

.file-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 350px;
  overflow-y: auto;
}

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  border-radius: 8px;
  gap: 1rem;
}

.file-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  overflow: hidden;
}

.file-thumb {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
}

.file-meta {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.file-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-size {
  color: var(--text-3);
  font-size: 0.75rem;
}

.file-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.action-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  width: 30px;
  height: 30px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.2s, border-color 0.2s;
}
.action-btn:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--accent-dim);
}
.action-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.remove-btn:hover {
  border-color: #ef4444;
  color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

.btn-primary {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 0.75rem 2rem;
  font-size: 1rem;
  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: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: background 0.2s;
}
.btn-secondary:hover {
  background: var(--border);
}

.ad-post-op {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  font-size: 0.75rem;
  color: var(--text-3);
  text-align: center;
  background: var(--surface);
}