/* CSS Transform 생성기 전용 스타일 */

nav { max-width: 920px; }
main { max-width: 920px; }

.preview-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  background: repeating-conic-gradient(#e5e7eb 0% 25%, #f9fafb 0% 50%) 50% / 24px 24px;
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 1rem;
  padding: 1.5rem;
  overflow: hidden;
}

.preview-target {
  width: 180px;
  height: 110px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  box-shadow: 0 6px 18px rgba(102, 126, 234, 0.35);
  transition: transform 0.1s linear, transform-origin 0.15s;
  transform-style: preserve-3d;
  backface-visibility: visible;
}

.preview-target span {
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.mode-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 0.9rem;
}

.mode-chk {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text);
  cursor: pointer;
  user-select: none;
}
.mode-chk input {
  accent-color: var(--primary);
  cursor: pointer;
  width: 16px;
  height: 16px;
}

.reset-all-btn {
  padding: 0.4rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--bg);
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 7px;
  cursor: pointer;
  transition: all 0.15s;
}
.reset-all-btn:hover {
  border-color: var(--error);
  color: var(--error);
}

/* Transform 카드 그리드 */
.transforms {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.55rem;
  margin-bottom: 0.95rem;
}

.tf-card {
  padding: 0.65rem 0.8rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 9px;
}

.tf-head {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.4rem;
}

.tf-name {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text);
  flex: 1;
}

.tf-num {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--text-sub);
}

.tf-reset {
  width: 22px;
  height: 22px;
  font-size: 0.85rem;
  line-height: 1;
  background: transparent;
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.tf-reset:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.tf-slider {
  width: 100%;
  accent-color: var(--primary);
}

/* transform-origin 블록 */
.origin-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 0.95rem;
  margin-bottom: 1rem;
}

.origin-label {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.origin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 0.85rem;
}

.slider-row {
  display: grid;
  grid-template-columns: 50px 1fr auto;
  gap: 0.55rem;
  align-items: center;
}

.slider-label {
  font-size: 0.78rem;
  color: var(--text-sub);
  font-weight: 500;
}

.slider {
  accent-color: var(--primary);
  min-width: 0;
}

.slider-num {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
  min-width: 40px;
  text-align: right;
}

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

.output-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.55rem 0.9rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.output-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.btn-copy {
  padding: 0.3rem 0.7rem;
  font-size: 0.75rem;
  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 {
  padding: 0.85rem 0.95rem;
  margin: 0;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.85rem;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.55;
}

@media (max-width: 600px) {
  .transforms { grid-template-columns: 1fr 1fr; }
  .origin-grid { grid-template-columns: 1fr; }
  .preview-stage { min-height: 220px; }
  .preview-target { width: 140px; height: 90px; }
}

@media (max-width: 480px) {
  .transforms { grid-template-columns: 1fr; }
  .preview-stage { min-height: 180px; }
}