/**
 * Component Styles
 * 组件样式：button、card、form等
 */

/* 按钮 */
.modern-btn {
  padding: var(--spacing-md, 16px) var(--spacing-xl, 32px);
  border-radius: var(--border-radius-md, 12px);
  font-size: var(--font-size-md, 16px);
  font-weight: var(--font-weight-medium, 500);
  cursor: pointer;
  transition: all var(--transition-normal, 300ms ease);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm, 8px);
}

.modern-btn-primary {
  background: linear-gradient(
    135deg,
    var(--color-accent-start, #87CEEB) 0%,
    var(--color-accent-end, #FFB6C1) 100%
  );
  color: var(--color-text-primary, #333);
}

.modern-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg, 0 8px 16px rgba(0, 0, 0, 0.2));
}

.modern-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* 卡片 */
.modern-card {
  background: var(--color-bg-card, #ffffff);
  border-radius: var(--border-radius-lg, 15px);
  padding: var(--container-padding, 30px);
  box-shadow: var(--shadow-md, 0 4px 8px rgba(0, 0, 0, 0.15));
  margin-bottom: var(--spacing-lg, 24px);
}

/* 表单 */
.modern-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg, 24px);
}

.modern-form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm, 8px);
}

.modern-form-label {
  font-weight: var(--font-weight-medium, 500);
  color: var(--color-text-primary, #333);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 8px);
}

.modern-form-input {
  padding: var(--spacing-md, 16px);
  border: 2px solid var(--color-border, #e0e0e0);
  border-radius: var(--border-radius-sm, 8px);
  font-size: var(--font-size-md, 16px);
  transition: border-color var(--transition-fast, 150ms ease);
}

.modern-form-input:focus {
  outline: none;
  border-color: var(--color-primary-50, #4a2c7a);
}

/* 标签按钮 */
.tab-btn {
  padding: var(--spacing-md, 16px) var(--spacing-lg, 24px);
  border-radius: var(--border-radius-md, 12px);
  background: transparent;
  color: var(--color-text-secondary, #666);
  font-weight: var(--font-weight-medium, 500);
  transition: all var(--transition-normal, 300ms ease);
  cursor: pointer;
  border: 2px solid transparent;
}

.tab-btn:hover {
  background: var(--color-bg-secondary, #f8f9fa);
  color: var(--color-text-primary, #333);
}

.tab-btn.active {
  background: linear-gradient(
    135deg,
    var(--color-primary-50, #4a2c7a) 0%,
    var(--color-primary-75, #6b3fa0) 100%
  );
  color: var(--color-text-white, #ffffff);
  border-color: var(--color-primary-75, #6b3fa0);
}

/* 步骤指示器 */
.step-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md, 16px);
  margin: var(--spacing-xl, 32px) 0;
  padding: var(--spacing-lg, 24px);
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm, 8px);
  position: relative;
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-bg-secondary, #f8f9fa);
  color: var(--color-text-secondary, #666);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold, 700);
  border: 2px solid var(--color-border, #e0e0e0);
  transition: all var(--transition-normal, 300ms ease);
}

.step-item.active .step-number {
  background: linear-gradient(
    135deg,
    var(--color-primary-50, #4a2c7a) 0%,
    var(--color-primary-75, #6b3fa0) 100%
  );
  color: var(--color-text-white, #ffffff);
  border-color: var(--color-primary-75, #6b3fa0);
}

.step-item.completed .step-number {
  background: var(--color-success, #28a745);
  color: var(--color-text-white, #ffffff);
  border-color: var(--color-success, #28a745);
}

.step-item.error .step-number {
  background: var(--color-error, #dc3545);
  color: var(--color-text-white, #ffffff);
  border-color: var(--color-error, #dc3545);
}

.step-label {
  font-size: var(--font-size-sm, 14px);
  color: var(--color-text-secondary, #666);
}

.step-item.active .step-label {
  color: var(--color-text-primary, #333);
  font-weight: var(--font-weight-medium, 500);
}

.step-connector {
  width: 60px;
  height: 2px;
  background: var(--color-border, #e0e0e0);
  margin: 0 var(--spacing-sm, 8px);
}

/* 上传区域 */
.upload-area {
  border: 2px dashed var(--color-border, #e0e0e0);
  border-radius: var(--border-radius-md, 12px);
  padding: var(--spacing-xl, 32px);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal, 300ms ease);
  background: var(--color-bg-secondary, #f8f9fa);
}

.upload-area:hover {
  border-color: var(--color-primary-50, #4a2c7a);
  background: rgba(74, 44, 122, 0.05);
}

.upload-area.dragover {
  border-color: var(--color-primary-75, #6b3fa0);
  background: rgba(107, 63, 160, 0.1);
}

/* 平台选择 */
.platform-selection {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--spacing-md, 16px);
}

.platform-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm, 8px);
  padding: var(--spacing-lg, 24px);
  border: 2px solid var(--color-border, #e0e0e0);
  border-radius: var(--border-radius-md, 12px);
  cursor: pointer;
  transition: all var(--transition-normal, 300ms ease);
  background: var(--color-bg-card, #ffffff);
}

.platform-item:hover {
  border-color: var(--color-primary-50, #4a2c7a);
  transform: translateY(-2px);
}

.platform-item.selected {
  border-color: var(--color-primary-75, #6b3fa0);
  background: rgba(107, 63, 160, 0.1);
}

.platform-icon {
  font-size: var(--font-size-xxl, 24px);
}

.platform-label {
  font-size: var(--font-size-sm, 14px);
  font-weight: var(--font-weight-medium, 500);
}

/* 图片预览 */
.image-preview-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: var(--spacing-md, 16px);
  margin-top: var(--spacing-md, 16px);
}

.image-preview-item {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: var(--border-radius-sm, 8px);
}

.image-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.remove-btn {
  position: absolute;
  top: 5px;
  right: 5px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(220, 53, 69, 0.8);
  color: var(--color-text-white, #ffffff);
  border: none;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.remove-btn:hover {
  background: var(--color-error, #dc3545);
}

/* 加载动画 */
.loading-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--color-text-white, #ffffff);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* 通知 */
.notification {
  position: fixed;
  top: var(--spacing-lg, 24px);
  right: var(--spacing-lg, 24px);
  padding: var(--spacing-lg, 24px);
  border-radius: var(--border-radius-md, 12px);
  font-weight: var(--font-weight-medium, 500);
  z-index: var(--z-index-notification, 10000);
  box-shadow: var(--shadow-lg, 0 8px 16px rgba(0, 0, 0, 0.2));
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.notification.success {
  background: var(--color-success, #28a745);
  color: var(--color-text-white, #ffffff);
}

.notification.error {
  background: var(--color-error, #dc3545);
  color: var(--color-text-white, #ffffff);
}

.notification.info {
  background: var(--color-info, #17a2b8);
  color: var(--color-text-white, #ffffff);
}

.notification.warning {
  background: var(--color-warning, #ffc107);
  color: var(--color-text-primary, #333);
}