.radius-tool {
  display: grid;
  gap: 18px;
}

.radius-preview-wrap {
  display: grid;
  place-items: center;
  min-height: 220px;
  padding: 24px;
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.radius-preview-box {
  width: 180px;
  height: 140px;
  background: linear-gradient(135deg, #2563eb, #22d3ee);
  border: 1px solid var(--border);
}

.radius-form {
  display: grid;
  gap: 14px;
}

.check-option {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
}

.field-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.field {
  display: grid;
  gap: 6px;
  flex: 1 1 160px;
}

.field span {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 850;
  text-transform: uppercase;
}

.field input[type="range"] {
  width: 100%;
}

.field output {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.utility-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

#cssOutput {
  width: 100%;
  min-height: 90px;
  padding: 12px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.9rem;
  resize: vertical;
}

@media (max-width: 860px) {
  .utility-row .action-button {
    width: 100%;
  }
}