@use 'ui-design-system/src/styles/semantic/index' as *;

.demo-container {
  padding: $semantic-spacing-layout-section-md;
  max-width: 1200px;
  margin: 0 auto;
}

.demo-section {
  margin-bottom: $semantic-spacing-layout-section-lg;
  
  h3 {
    font-family: map-get($semantic-typography-heading-h3, font-family);
    font-size: map-get($semantic-typography-heading-h3, font-size);
    font-weight: map-get($semantic-typography-heading-h3, font-weight);
    line-height: map-get($semantic-typography-heading-h3, line-height);
    color: $semantic-color-text-primary;
    margin-bottom: $semantic-spacing-content-heading;
  }
}

.demo-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: $semantic-spacing-grid-gap-lg;
  margin-bottom: $semantic-spacing-component-lg;
}

.demo-feed-wrapper {
  display: flex;
  flex-direction: column;
  gap: $semantic-spacing-component-sm;
  
  h4 {
    font-family: map-get($semantic-typography-heading-h4, font-family);
    font-size: map-get($semantic-typography-heading-h4, font-size);
    font-weight: map-get($semantic-typography-heading-h4, font-weight);
    line-height: map-get($semantic-typography-heading-h4, line-height);
    color: $semantic-color-text-secondary;
    margin: 0;
  }
}

.demo-feed {
  border: $semantic-border-width-1 solid $semantic-color-border-primary;
  border-radius: $semantic-border-radius-lg;
  background: $semantic-color-surface;
  
  &--preview {
    height: 400px;
  }
  
  &--interactive {
    height: 600px;
    margin: $semantic-spacing-component-lg 0;
  }
}

.demo-feed-item {
  padding: $semantic-spacing-component-lg;
  border-bottom: $semantic-border-width-1 solid $semantic-color-border-subtle;
  
  &:last-child {
    border-bottom: none;
  }
  
  &--loading {
    opacity: $semantic-opacity-subtle;
    pointer-events: none;
  }
  
  &__header {
    display: flex;
    align-items: center;
    gap: $semantic-spacing-component-sm;
    margin-bottom: $semantic-spacing-component-sm;
    
    strong {
      font-family: map-get($semantic-typography-body-medium, font-family);
      font-size: map-get($semantic-typography-body-medium, font-size);
      font-weight: $semantic-typography-font-weight-semibold;
      line-height: map-get($semantic-typography-body-medium, line-height);
      color: $semantic-color-text-primary;
    }
  }
  
  &__badge {
    padding: 2px $semantic-spacing-component-xs;
    border-radius: $semantic-border-radius-sm;
    font-family: map-get($semantic-typography-caption, font-family);
    font-size: map-get($semantic-typography-caption, font-size);
    font-weight: map-get($semantic-typography-caption, font-weight);
    line-height: map-get($semantic-typography-caption, line-height);
    text-transform: uppercase;
    
    &--text {
      background: $semantic-color-info;
      color: $semantic-color-on-info;
    }
    
    &--image {
      background: $semantic-color-success;
      color: $semantic-color-on-success;
    }
    
    &--video {
      background: $semantic-color-warning;
      color: $semantic-color-on-warning;
    }
  }
  
  &__timestamp {
    font-family: map-get($semantic-typography-caption, font-family);
    font-size: map-get($semantic-typography-caption, font-size);
    font-weight: map-get($semantic-typography-caption, font-weight);
    line-height: map-get($semantic-typography-caption, line-height);
    color: $semantic-color-text-tertiary;
    margin-left: auto;
  }
  
  &__title {
    font-family: map-get($semantic-typography-heading-h5, font-family);
    font-size: map-get($semantic-typography-heading-h5, font-size);
    font-weight: map-get($semantic-typography-heading-h5, font-weight);
    line-height: map-get($semantic-typography-heading-h5, line-height);
    color: $semantic-color-text-primary;
    margin: 0 0 $semantic-spacing-content-paragraph 0;
  }
  
  &__content {
    font-family: map-get($semantic-typography-body-medium, font-family);
    font-size: map-get($semantic-typography-body-medium, font-size);
    font-weight: map-get($semantic-typography-body-medium, font-weight);
    line-height: map-get($semantic-typography-body-medium, line-height);
    color: $semantic-color-text-secondary;
    margin: 0 0 $semantic-spacing-component-md 0;
  }
  
  &__actions {
    display: flex;
    gap: $semantic-spacing-component-md;
  }
  
  &__action {
    background: none;
    border: none;
    padding: $semantic-spacing-component-xs $semantic-spacing-component-sm;
    border-radius: $semantic-border-radius-sm;
    cursor: pointer;
    
    font-family: map-get($semantic-typography-button-small, font-family);
    font-size: map-get($semantic-typography-button-small, font-size);
    font-weight: map-get($semantic-typography-button-small, font-weight);
    line-height: map-get($semantic-typography-button-small, line-height);
    color: $semantic-color-text-tertiary;
    
    transition: all $semantic-motion-duration-fast $semantic-motion-easing-ease;
    
    &:hover {
      background: $semantic-color-surface-elevated;
      color: $semantic-color-text-primary;
    }
    
    &:focus-visible {
      outline: 2px solid $semantic-color-focus;
      outline-offset: 2px;
    }
  }
}

.demo-controls {
  display: flex;
  gap: $semantic-spacing-component-md;
  align-items: center;
  margin-bottom: $semantic-spacing-component-lg;
  padding: $semantic-spacing-component-md;
  background: $semantic-color-surface-elevated;
  border-radius: $semantic-border-radius-md;
  
  button {
    padding: $semantic-spacing-interactive-button-padding-y $semantic-spacing-interactive-button-padding-x;
    background: $semantic-color-primary;
    color: $semantic-color-on-primary;
    border: none;
    border-radius: $semantic-border-button-radius;
    cursor: pointer;
    
    font-family: map-get($semantic-typography-button-small, font-family);
    font-size: map-get($semantic-typography-button-small, font-size);
    font-weight: map-get($semantic-typography-button-small, font-weight);
    line-height: map-get($semantic-typography-button-small, line-height);
    
    transition: all $semantic-motion-duration-fast $semantic-motion-easing-ease;
    
    &:hover:not(:disabled) {
      opacity: $semantic-opacity-hover;
    }
    
    &:focus-visible {
      outline: 2px solid $semantic-color-focus;
      outline-offset: 2px;
    }
    
    &:disabled {
      opacity: $semantic-opacity-disabled;
      cursor: not-allowed;
    }
  }
  
  label {
    display: flex;
    align-items: center;
    gap: $semantic-spacing-component-xs;
    
    font-family: map-get($semantic-typography-body-small, font-family);
    font-size: map-get($semantic-typography-body-small, font-size);
    font-weight: map-get($semantic-typography-body-small, font-weight);
    line-height: map-get($semantic-typography-body-small, line-height);
    color: $semantic-color-text-secondary;
    
    input[type="checkbox"] {
      margin: 0;
    }
  }
}

.demo-empty-state {
  text-align: center;
  padding: $semantic-spacing-layout-section-lg;
  
  &--small {
    padding: $semantic-spacing-component-lg;
  }
  
  &__icon {
    font-size: 3rem;
    margin-bottom: $semantic-spacing-component-md;
  }
  
  h4 {
    font-family: map-get($semantic-typography-heading-h4, font-family);
    font-size: map-get($semantic-typography-heading-h4, font-size);
    font-weight: map-get($semantic-typography-heading-h4, font-weight);
    line-height: map-get($semantic-typography-heading-h4, line-height);
    color: $semantic-color-text-primary;
    margin: 0 0 $semantic-spacing-component-sm 0;
  }
  
  p {
    font-family: map-get($semantic-typography-body-medium, font-family);
    font-size: map-get($semantic-typography-body-medium, font-size);
    font-weight: map-get($semantic-typography-body-medium, font-weight);
    line-height: map-get($semantic-typography-body-medium, line-height);
    color: $semantic-color-text-secondary;
    margin: 0 0 $semantic-spacing-component-lg 0;
  }
  
  &__button {
    padding: $semantic-spacing-interactive-button-padding-y $semantic-spacing-interactive-button-padding-x;
    background: $semantic-color-secondary;
    color: $semantic-color-on-secondary;
    border: none;
    border-radius: $semantic-border-button-radius;
    cursor: pointer;
    
    font-family: map-get($semantic-typography-button-medium, font-family);
    font-size: map-get($semantic-typography-button-medium, font-size);
    font-weight: map-get($semantic-typography-button-medium, font-weight);
    line-height: map-get($semantic-typography-button-medium, line-height);
    
    transition: all $semantic-motion-duration-fast $semantic-motion-easing-ease;
    
    &:hover {
      opacity: $semantic-opacity-hover;
    }
    
    &:focus-visible {
      outline: 2px solid $semantic-color-focus;
      outline-offset: 2px;
    }
  }
}

.demo-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: $semantic-spacing-grid-gap-md;
  padding: $semantic-spacing-component-lg;
  background: $semantic-color-surface-elevated;
  border-radius: $semantic-border-radius-md;
  border: $semantic-border-width-1 solid $semantic-color-border-subtle;
}

.demo-stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  
  &__label {
    font-family: map-get($semantic-typography-body-small, font-family);
    font-size: map-get($semantic-typography-body-small, font-size);
    font-weight: map-get($semantic-typography-body-small, font-weight);
    line-height: map-get($semantic-typography-body-small, line-height);
    color: $semantic-color-text-secondary;
  }
  
  &__value {
    font-family: map-get($semantic-typography-body-medium, font-family);
    font-size: map-get($semantic-typography-body-medium, font-size);
    font-weight: $semantic-typography-font-weight-semibold;
    line-height: map-get($semantic-typography-body-medium, line-height);
    color: $semantic-color-primary;
  }
}

// Responsive Design
@media (max-width: 768px) {
  .demo-row {
    grid-template-columns: 1fr;
  }
  
  .demo-controls {
    flex-direction: column;
    align-items: stretch;
    gap: $semantic-spacing-component-sm;
    
    label {
      justify-content: center;
    }
  }
  
  .demo-feed {
    &--preview {
      height: 300px;
    }
    
    &--interactive {
      height: 500px;
    }
  }
  
  .demo-stats {
    grid-template-columns: 1fr;
  }
}