/* ============================================
   components.css - 组件样式
   按钮、卡片、进度条、表单、消息提示等
   ============================================ */

/* ---------- 按钮基础样式 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast),
              border-color var(--transition-fast),
              color var(--transition-fast),
              opacity var(--transition-fast),
              transform var(--transition-fast);
  user-select: none;
  white-space: nowrap;
  font-family: inherit;
  color: var(--text-primary);
  background: transparent;
}

.btn:active:not(:disabled) {
  transform: scale(0.96);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* 主要按钮 */
.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.btn-primary:active:not(:disabled) {
  background-color: var(--color-primary-active);
  border-color: var(--color-primary-active);
}

/* 轮廓按钮 */
.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-outline:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary-hover);
  background-color: rgba(99, 102, 241, 0.1);
}

.btn-outline:active:not(:disabled) {
  background-color: rgba(99, 102, 241, 0.18);
}

/* 轮廓按钮激活态（用于 tab 选中、倍速选中等） */
.btn-outline.active {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: rgba(99, 102, 241, 0.12);
}

/* 图标按钮 */
.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-input);
  border-color: var(--border-color);
}

.btn-icon:hover:not(:disabled) {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* 大号按钮 */
.btn-lg {
  padding: 12px 32px;
  font-size: 1rem;
  border-radius: var(--radius-md);
}

/* 操作按钮（编辑面板底部的执行按钮） */
.btn-action {
  margin-top: var(--spacing-md);
  width: 100%;
  padding: 10px 20px;
}

/* 按钮组 */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

/* ---------- Tab 选项卡按钮 ---------- */
.tab-btn {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color var(--transition-fast),
              background-color var(--transition-fast),
              border-color var(--transition-fast);
  font-family: inherit;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text-primary);
  background-color: var(--bg-input);
}

.tab-btn.active {
  color: var(--color-primary);
  background-color: rgba(99, 102, 241, 0.12);
  border-color: var(--color-primary);
}

/* ---------- 表单元素 ---------- */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

/* 文本/数字输入框 */
.form-input {
  width: 100%;
  padding: 8px 12px;
  font-size: 0.875rem;
  color: var(--text-primary);
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  font-family: inherit;
}

.form-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 下拉选择框 */
.form-select {
  width: 100%;
  padding: 8px 12px;
  font-size: 0.875rem;
  color: var(--text-primary);
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition-fast);
  font-family: inherit;
  -webkit-appearance: none;
  appearance: none;
  /* 自定义下拉箭头 */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239ca3af' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}

.form-select:focus {
  border-color: var(--border-focus);
}

.form-select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-select option {
  background-color: var(--bg-card);
  color: var(--text-primary);
}

/* 滑块（range） */
.form-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--bg-input);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.form-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.form-range::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.form-range::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-primary);
  border: none;
  cursor: pointer;
}

.form-range:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* range 旁边的数值显示 */
.form-group .form-range + span {
  display: inline-block;
  min-width: 32px;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-left: var(--spacing-sm);
}

/* 颜色选择器 */
.form-input-color {
  width: 48px;
  height: 36px;
  padding: 2px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--bg-input);
  cursor: pointer;
}

.form-input-color:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 表单行（多列并排） */
.form-row {
  display: flex;
  gap: var(--spacing-md);
}

.form-row .form-group {
  flex: 1;
  min-width: 0;
}

/* 复选框样式微调 */
.form-group label input[type="checkbox"] {
  margin-right: var(--spacing-xs);
  accent-color: var(--color-primary);
}

/* 文件上传输入 */
.form-group input[type="file"] {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.form-group input[type="file"]::file-selector-button {
  padding: 6px 14px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary);
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  margin-right: var(--spacing-sm);
  transition: background-color var(--transition-fast);
  font-family: inherit;
}

.form-group input[type="file"]::file-selector-button:hover {
  background-color: var(--bg-card);
}

.form-group input[type="file"]:disabled::file-selector-button {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ---------- 进度条 ---------- */
.progress-bar {
  width: 100%;
  height: 8px;
  background-color: var(--bg-input);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--gradient-progress);
  background-size: 200% 100%;
  animation: progressShimmer 2s linear infinite;
  transition: width 0.3s ease;
}

/* 进度条流光动画 */
@keyframes progressShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ---------- 加载旋转动画（Spinner） ---------- */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto var(--spacing-md);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---------- 消息提示 ---------- */
.message {
  padding: 10px 14px;
  font-size: 0.8125rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-md);
  line-height: 1.5;
}

.message-error {
  background-color: rgba(239, 68, 68, 0.12);
  color: var(--color-error);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.message-warning {
  background-color: rgba(245, 158, 11, 0.12);
  color: var(--color-warning);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.message-info {
  background-color: rgba(59, 130, 246, 0.12);
  color: var(--color-info);
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.message-success {
  background-color: rgba(34, 197, 94, 0.12);
  color: var(--color-success);
  border: 1px solid rgba(34, 197, 94, 0.25);
}

/* ---------- 快捷操作卡片 ---------- */
.quick-action-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg) var(--spacing-md);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--transition-normal),
              background-color var(--transition-normal),
              transform var(--transition-fast),
              box-shadow var(--transition-normal);
  text-align: center;
  font-family: inherit;
  color: var(--text-primary);
}

.quick-action-card:hover:not(:disabled) {
  border-color: var(--color-primary);
  background-color: rgba(99, 102, 241, 0.06);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

.quick-action-card:active:not(:disabled) {
  transform: translateY(0);
}

.quick-action-card:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.qa-icon {
  font-size: 2rem;
}

.qa-label {
  font-size: 0.9375rem;
  font-weight: 600;
}

.qa-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ---------- 文件输入隐藏 ---------- */
.file-input {
  display: none;
}