/* Base64 Encoder/Decoder — tool-specific styles */

#b64-input, #b64-output {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 0.85rem;
  line-height: 1.55;
  resize: vertical;
  word-break: break-all;
}

#b64-output {
  background: var(--bg-alt);
}

.b64-mode {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.mode-btn {
  padding: 0.55rem 1.3rem;
  font-size: 0.9rem;
  font-weight: 600;
  background: transparent;
  color: var(--text-muted);
  border: none;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.mode-btn.active {
  background: var(--primary);
  color: #fff;
}

.checkbox-group { margin-bottom: 1rem; }

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.92rem;
  cursor: pointer;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 17px;
  height: 17px;
  accent-color: var(--primary);
  cursor: pointer;
}

.b64-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

.b64-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

@media (max-width: 700px) {
  .b64-actions .btn { flex: 1; }
}