/*
  Card component
  
  Structure:
  .a-card                    - Base card container
  .a-card-header           - Optional header section
  .a-card-header-status  - Optional status indicator area
  .a-card-header-action  - Optional action area (top-right)
  .a-card-header-content - Header content (title/subtitle/labels)
  .a-card-title        - Card title
  .a-card-subtitle     - Card subtitle
  .a-card-labels       - Label list (ul)
  .a-card-media            - Optional media (image/video)
  .a-card-content          - Main content area
  .a-card-content-section - Optional content section
  .a-card-content-row    - Optional content row
  .a-card-content-row-body - Content row body
  .a-card-content-row-title - Content row title
  .a-card-footer           - Optional footer/actions section
  
  Modifiers:
  .a-card--horizontal        - Horizontal layout
  .a-card--with-media        - Horizontal card with media (requires --horizontal)
  .a-card--ai-top            - AI gradient border on top
  .a-card--ai-start          - AI gradient border on start
  
  Media sizes:
  .a-card-media--lg          - Large: 340px vertical, 240x240 horizontal
  .a-card-media--md          - Medium: 220px vertical, 160x160 horizontal (default)
  .a-card-media--sm          - Small: 160px vertical, 120x120 horizontal
*/

.a-card {
  --gap: var(--lens-semantic-spacing-desktop-gap-3);
  --padding-inline: var(--lens-semantic-spacing-desktop-padding-3);
  --padding-block: var(--lens-semantic-spacing-desktop-padding-3);
  --border-radius: var(--lens-semantic-radius-lg);
  --border-width: var(--lens-semantic-border-width-thin);
  --border-color: var(--lens-semantic-color-action-secondary-disabled-outline);
  --bg: transparent;
  display: flex;
  flex-direction: column;
  gap: var(--a-card-gap, var(--gap));
  padding-inline: var(--a-card-padding-inline, var(--padding-inline));
  padding-block: var(--a-card-padding-block, var(--padding-block));
  background: var(--a-card-bg, var(--bg));
  border: var(--a-card-border-width, var(--border-width)) solid
    var(--a-card-border-color, var(--border-color));
  border-radius: var(--a-card-border-radius, var(--border-radius));
  box-sizing: border-box;
  position: relative;
  &.a-card--horizontal {
    .a-card-content-section {
      gap: var(--lens-core-spacing-1);
    }
    .a-card-footer {
      padding-block-start: var(--lens-semantic-spacing-desktop-padding-1-5);
      border-block-start: var(--lens-semantic-border-width-thin) solid
        var(--lens-semantic-color-ui-divider-default);
    }
  }
  &.a-card--ai-top,
  &.a-card--ai-start {
    overflow: hidden;
    border: none;
  }
  &.a-card--ai-top {
    background: var(--lens-semantic-gradients-ai-default-horizontal);
  }
  &.a-card--ai-start {
    background: var(--lens-semantic-gradients-ai-default-vertical);
  }
  &.a-card--ai-top::after,
  &.a-card--ai-start::after {
    content: "";
    position: absolute;
    border-radius: inherit;
    background: var(--lens-semantic-color-surface-default);
    z-index: 0;
    border: var(--a-card-border-width, var(--border-width)) solid
      var(--a-card-border-color, var(--border-color));
  }
  &.a-card--ai-top::after {
    inset: var(--a-card-border-width, var(--border-width)) 0 0 0;
    border-block-start: none;
  }
  &.a-card--ai-start::after {
    inset: 0;
    margin-inline-start: var(--a-card-border-width, var(--border-width));
    border-inline-start: none;
  }
  &.a-card--ai-top > *,
  &.a-card--ai-start > * {
    position: relative;
    z-index: 1;
  }
  @container style(--atlas-theme: atlas) {
    --padding-inline: var(--lens-core-spacing-2-5);
    --padding-block: var(--lens-core-spacing-2);
  }
}

.a-card-header {
  display: grid;
  grid-auto-flow: column dense;
  grid-template-columns: auto auto;
  grid-template-rows: auto auto;
  gap: 0;
  grid-template-areas: "status action" "content content";
  position: relative;
  width: 100%;
  margin-inline-end: var(--lens-core-spacing-2);
}

.a-card-header-status {
  grid-area: status;
  display: flex;
  align-items: center;
  gap: var(--lens-semantic-spacing-desktop-gap-1);
  margin-block-end: var(--lens-semantic-spacing-desktop-gap-1-5);
}

.a-card-header-action {
  grid-area: action;
  justify-self: flex-end;
  align-self: flex-start;
}

.a-card-header-content {
  grid-area: content;
  display: flex;
  flex-direction: column;
}

.a-card-title {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

h1.a-card-title > span:first-of-type {
  color: var(--lens-semantic-color-type-default);
  font-size: var(--lens-semantic-font-title-h2-display-font-size);
  line-height: var(--lens-semantic-font-title-h2-display-line-height);
  letter-spacing: var(--lens-semantic-font-title-h2-display-letter-spacing);
  font-weight: var(--lens-semantic-font-weight-emphasis);
  text-transform: none;
  text-decoration: none;
}

p.a-card-subtitle {
  color: var(--lens-semantic-color-type-muted);
  margin: 0;
  font-size: var(--lens-semantic-font-text-md-font-size);
  line-height: var(--lens-semantic-font-text-md-line-height);
  letter-spacing: var(--lens-semantic-font-text-md-letter-spacing);
  font-weight: var(--lens-semantic-font-text-md-font-weight);
}

.a-card-labels {
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--lens-semantic-spacing-desktop-gap-0);
  padding: 0;
  margin-block-start: 0;
  margin-block-end: var(--lens-core-spacing-0-5);
  & > li {
    font-size: var(--lens-semantic-font-text-md-font-size);
    line-height: var(--lens-semantic-font-text-md-line-height);
    letter-spacing: var(--lens-semantic-font-text-md-letter-spacing);
    font-weight: var(--lens-semantic-font-text-md-font-weight);
    color: var(--lens-semantic-color-type-default);
    &:not(:first-of-type)::before {
      content: "•";
      display: inline-grid;
      justify-content: center;
      align-items: center;
      inline-size: var(--lens-core-spacing-2-5);
      block-size: var(--lens-core-spacing-2-5);
      color: var(--lens-semantic-color-type-default);
    }
  }
}

.a-card-header-icon {
  display: flex;
  padding: var(--lens-core-spacing-1);
  background: var(--lens-semantic-color-status-neutral-background-variant);
  border-radius: var(--lens-semantic-radius-lg);
}

.a-card-media {
  border-radius: var(--lens-semantic-radius-md);
  object-fit: cover;
  object-position: top;
  inline-size: 100%;
  block-size: 220px;
}

.a-card-media--lg {
  block-size: 340px;
}

.a-card-media--md {
  block-size: 220px;
}

.a-card-media--sm {
  block-size: 160px;
}

.a-card-content {
  padding: 0;
  & p {
    margin: 0;
  }
  .a-card-content-section {
    display: flex;
    flex-direction: column;
    gap: var(--lens-semantic-spacing-desktop-gap-3);
  }
  .a-card-content-row {
    display: flex;
    gap: var(--lens-semantic-spacing-desktop-gap-2);
    .a-card-content-row-body {
      display: flex;
      flex-direction: column;
      gap: var(--lens-core-spacing-0-5);
      .a-card-content-row-title {
        font-size: var(--lens-semantic-font-label-sm-font-size);
        line-height: var(--lens-semantic-font-label-sm-line-height);
        letter-spacing: var(--lens-semantic-font-label-sm-letter-spacing);
        font-weight: var(--lens-semantic-font-weight-emphasis);
      }
      p:not(.a-card-content-row-title) {
        font-size: var(--lens-semantic-font-text-md-font-size);
        line-height: var(--lens-semantic-font-text-md-line-height);
        letter-spacing: var(--lens-semantic-font-text-md-letter-spacing);
        font-weight: var(--lens-semantic-font-text-md-font-weight);
      }
    }
  }
}

.a-card-footer {
  display: flex;
  flex-direction: column;
  gap: var(--lens-semantic-spacing-desktop-gap-1-5);
  padding: 0;
  & .a-btn {
    width: 100%;
  }
}

.a-card--horizontal .a-card-footer {
  flex-direction: row;
  justify-content: flex-end;
  & .a-btn {
    width: auto;
  }
}

.a-card--horizontal.a-card--with-media {
  display: grid;
  grid-template-areas: "media header" "media content" "footer footer";
  grid-template-columns: auto 1fr;
  & .a-card-media {
    grid-area: media;
    block-size: 160px;
    inline-size: 160px;
    align-self: start;
  }
  & .a-card-media--lg {
    block-size: 240px;
    inline-size: 240px;
  }
  & .a-card-media--md {
    block-size: 160px;
    inline-size: 160px;
  }
  & .a-card-media--sm {
    block-size: 120px;
    inline-size: 120px;
  }
  & .a-card-header {
    grid-area: header;
  }
  & .a-card-content {
    grid-area: content;
  }
  & .a-card-footer {
    grid-area: footer;
  }
  @container style(--atlas-theme: atlas) {
    gap: var(--lens-core-spacing-3);
  }
}