/* 사인 이미지 만들기 - 도구 전용 스타일 */

/* 색상 선택 버튼 그룹 */
.color-options {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.color-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--swatch);
  cursor: pointer;
  padding: 0;
  transition: border-color 0.2s, transform 0.15s;
}

.color-btn:hover {
  transform: scale(1.15);
}

.color-btn.active {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.3);
}

#custom-color {
  width: 28px;
  height: 28px;
  border: 2px solid var(--border);
  border-radius: 50%;
  padding: 0;
  cursor: pointer;
  background: none;
  -webkit-appearance: none;
  appearance: none;
}

#custom-color::-webkit-color-swatch-wrapper {
  padding: 0;
}

#custom-color::-webkit-color-swatch {
  border: none;
  border-radius: 50%;
}

#custom-color::-moz-color-swatch {
  border: none;
  border-radius: 50%;
}

/* 캔버스 래퍼 */
.canvas-wrap {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
}

#canvas {
  display: block;
  width: 100%;
  height: auto;
  cursor: crosshair;
  touch-action: none;
  background: #ffffff;
}

@media (prefers-color-scheme: dark) {
  #canvas {
    /* 다크모드에서도 캔버스 배경은 흰색 유지 (서명 도구이므로) */
    background: #ffffff;
  }
}

.canvas-hint {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #9ca3af;
  font-size: 1rem;
  pointer-events: none;
  user-select: none;
  transition: opacity 0.3s;
}

.canvas-hint.hidden {
  opacity: 0;
}

/* 액션 버튼 영역 */
.action-buttons {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.action-buttons .btn,
.action-buttons .btn-download-main {
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-download-main {
  margin-left: auto;
  background: var(--primary);
  border: 1px solid var(--primary);
  color: white;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-download-main:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}

/* select 스타일 */
select {
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.85rem;
  cursor: pointer;
}

/* 반응형 */
@media (max-width: 480px) {
  .action-buttons {
    flex-direction: column;
  }

  .btn-download-main {
    margin-left: 0;
  }

  .action-buttons .btn,
  .action-buttons .btn-download-main {
    width: 100%;
    text-align: center;
  }
}