/* Border Radius 생성기 전용 스타일 */

nav { max-width: 980px; }
main { max-width: 980px; }

.subtitle {
  color: var(--text-sub);
  margin-bottom: 1rem;
}

/* 모드 탭 */
.mode-tabs {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.mode-tab {
  flex: 1;
  min-width: 140px;
  padding: 0.6rem 1rem;
  font-size: 0.88rem;
  font-weight: 600;
  background: var(--surface);
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 7px;
  cursor: pointer;
  transition: all 0.15s;
}

.mode-tab:hover {
  border-color: var(--primary);
  color: var(--primary);
}

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

/* 액션 바 */
.action-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin-bottom: 0.85rem;
}

.match-btn {
  padding: 0.4rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
}

.match-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.format-toggle {
  margin-left: auto;
  display: flex;
  gap: 0.3rem;
}

.fmt-btn {
  padding: 0.4rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--surface);
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
}

.fmt-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

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

/* 편집기 */
.editor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.controls-pane {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 1rem;
}

.corners-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.corner-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.corner-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.slider-row {
  display: grid;
  grid-template-columns: auto 1fr 38px;
  gap: 0.4rem;
  align-items: center;
}

.axis-label {
  font-size: 0.7rem;
  color: var(--text-sub);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

.slider-row input[type="range"] {
  accent-color: var(--primary);
  min-width: 0;
}

.slider-val {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
  text-align: right;
}

/* 미리보기 */
.preview-pane {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.preview-head {
  padding: 0.55rem 0.85rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.pv-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.preview-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  min-height: 280px;
}

.preview-shape {
  width: 220px;
  height: 220px;
  background: linear-gradient(135deg, #667eea, #764ba2 50%, #f093fb);
  transition: border-radius 0.15s;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* 출력 */
.output {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.output-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.85rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.output-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.btn-copy {
  padding: 0.4rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--surface);
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-copy:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.output-code {
  margin: 0;
  padding: 0.85rem 1rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.5;
  background: var(--surface);
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-all;
}

@media (max-width: 720px) {
  .editor-grid { grid-template-columns: 1fr; }
  .preview-shape { width: 180px; height: 180px; }
  .corners-grid { grid-template-columns: 1fr; }
  .mode-tab { min-width: 0; padding: 0.5rem 0.65rem; font-size: 0.78rem; }
  .format-toggle { margin-left: 0; }
}