/**
 * Board der Projektseite: drei Bahnen (Spalten) auf erhöhter Fläche, unter 768 px untereinander.
 * Karte: Häkchen-Kreis, Titel als Kartenlink (stretched link), Fuß mit Avatar, Fälligkeit, Kommentaren.
 */
@layer components {
  .board {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-4);
  }

  @media (min-width: 768px) {
    .board {
      grid-template-columns: none;
      grid-auto-flow: column;
      grid-auto-columns: minmax(17rem, 1fr);
      align-items: start;
      overflow-x: auto;
      padding-block-end: var(--space-2);
    }
  }

  .board__column {
    display: grid;
    gap: var(--space-3);
    min-inline-size: 0;
    padding: var(--space-3);
    border: var(--border-width-thin) solid var(--border-subtle);
    border-radius: var(--radius-xl);
    background-color: var(--theme-card-bg);
    transition:
      border-color var(--motion-duration-ui) var(--motion-ease),
      background-color var(--motion-duration-ui) var(--motion-ease);
  }

  .board__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    padding-inline: var(--space-1);
  }

  .board__title {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    font-size: var(--font-size-label);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-ui);
    letter-spacing: var(--letter-spacing-normal);
  }

  .board__count {
    color: var(--theme-meta-color);
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-regular);
  }

  .board__cards {
    display: grid;
    gap: var(--space-2);
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .board__card {
    position: relative;
    display: grid;
    gap: var(--space-2);
    padding: var(--space-3);
    min-inline-size: 0;
    border: var(--border-width-thin) solid var(--theme-card-border);
    border-radius: var(--radius-lg);
    background-color: var(--theme-page-bg);
    transition:
      border-color var(--motion-duration-ui) var(--motion-ease),
      opacity var(--motion-duration-ui) var(--motion-ease),
      box-shadow var(--motion-duration-ui) var(--motion-ease);
  }

  .board__card-title {
    font-size: var(--font-size-label);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-ui);
    letter-spacing: var(--letter-spacing-normal);
    overflow-wrap: anywhere;
  }

  .board__card-link {
    text-decoration: none;
  }

  .board__card-link::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
  }

  @media (hover: hover) and (pointer: fine) {
    .board__card:hover {
      border-color: var(--border-strong);
    }
  }

  @media (hover: hover) and (pointer: fine) {
    .board__card:hover .board__card-link {
      text-decoration: underline;
    }
  }

  .board__card--done .board__card-title {
    color: var(--theme-meta-color);
  }

  .board__card-top {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: start;
    gap: var(--space-2);
  }

  .board__card-top > .board__card-title {
    grid-column: 2;
    padding-block: var(--space-1);
  }

  .board__card-top > .task-status {
    grid-column: 3;
  }

  .board__card-top > .board__check-form {
    grid-column: 1;
  }

  .board__check-form {
    position: relative;
    z-index: 1;
  }

  /* Statusmenü im Fluss der Karte (AP-38): Das Panel wird zweite Zeile über die volle Kartenbreite. */
  .board__card-top .task-status {
    display: contents;
  }

  .board__card-top .status-menu {
    grid-column: 3;
    grid-row: 1;
  }

  .board__card-top .status-menu[open] {
    display: contents;
  }

  .board__card-top .status-menu[open]::details-content {
    display: contents;
  }

  .board__card-top .status-menu__toggle {
    position: relative;
    z-index: 1;
    grid-column: 3;
    grid-row: 1;
  }

  .board__card-top .status-menu__panel {
    position: relative;
    inset: auto;
    z-index: 1;
    grid-column: 1 / -1;
    grid-row: 2;
    inline-size: auto;
    max-inline-size: none;
    box-shadow: none;
  }

  .board__check {
    display: grid;
    place-items: center;
    inline-size: 1.75rem;
    block-size: 1.75rem;
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--theme-page-bg);
    cursor: pointer;
    transition: transform var(--press-duration, var(--motion-duration-ui)) var(--motion-ease);
  }

  @media (prefers-reduced-motion: no-preference) {
    .board__check:active {
      --press-duration: var(--motion-duration-press);
      transform: scale(0.97);
    }
  }

  .board__check-circle {
    display: grid;
    place-items: center;
    inline-size: 1.25rem;
    block-size: 1.25rem;
    border: var(--border-width-medium) solid var(--border-strong);
    border-radius: 50%;
    color: transparent;
    transition:
      border-color var(--motion-duration-ui) var(--motion-ease),
      background-color var(--motion-duration-ui) var(--motion-ease),
      color var(--motion-duration-ui) var(--motion-ease);
  }

  @media (hover: hover) and (pointer: fine) {
    .board__check:hover .board__check-circle {
      border-color: var(--theme-badge-done-text);
      color: var(--theme-badge-done-text);
    }
  }

  .board__card--done .board__check-circle {
    border-color: var(--theme-badge-done-text);
    background-color: var(--theme-badge-done-text);
    color: var(--theme-page-bg);
  }

  @media (hover: hover) and (pointer: fine) {
    .board__card--done .board__check:hover .board__check-circle {
      color: var(--theme-page-bg);
      opacity: 0.8;
    }
  }

  .board__check-circle .icon {
    inline-size: 0.75rem;
    block-size: 0.75rem;
    stroke-width: 3;
    opacity: 0;
    transition:
      opacity var(--motion-duration-ui) var(--motion-ease),
      transform var(--motion-duration-ui) var(--motion-ease);
  }

  @media (prefers-reduced-motion: no-preference) {
    .board__check-circle .icon {
      transform: scale(0.95);
    }
  }

  .board__card--done .board__check-circle .icon {
    opacity: 1;
    transform: none;
  }

  @media (hover: hover) and (pointer: fine) {
    .board__check:hover .board__check-circle .icon {
      opacity: 1;
      transform: none;
    }
  }

  .board__card-foot {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-1) var(--space-3);
    color: var(--theme-meta-color);
    font-size: var(--font-size-small);
    line-height: var(--line-height-small);
  }

  .board__due--overdue {
    color: var(--theme-badge-overdue-text);
    font-weight: var(--font-weight-medium);
  }

  .board__repeat,
  .board__checklist {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
  }

  .board__comments {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    margin-inline-start: auto;
  }

  .avatar {
    display: inline-grid;
    overflow: hidden;
    flex: none;
    place-items: center;
    inline-size: 1.5rem;
    block-size: 1.5rem;
    border-radius: 50%;
    background-color: var(--theme-avatar-1-bg);
    color: var(--theme-avatar-text);
    font-size: 0.6875rem;
    font-weight: var(--font-weight-medium);
    line-height: 1;
    letter-spacing: 0;
  }

  .avatar--md {
    inline-size: 2rem;
    block-size: 2rem;
    font-size: 0.8125rem;
  }

  .avatar--lg {
    inline-size: 6rem;
    block-size: 6rem;
    font-size: 1.75rem;
  }

  .avatar__image {
    inline-size: 100%;
    block-size: 100%;
    border-radius: 50%;
    object-fit: cover;
  }

  .avatar--1 { background-color: var(--theme-avatar-1-bg); }
  .avatar--2 { background-color: var(--theme-avatar-2-bg); }
  .avatar--3 { background-color: var(--theme-avatar-3-bg); }
  .avatar--4 { background-color: var(--theme-avatar-4-bg); }
  .avatar--5 { background-color: var(--theme-avatar-5-bg); }
  .avatar--6 { background-color: var(--theme-avatar-6-bg); }

  .avatar--empty {
    border: var(--border-width-thin) dashed var(--border-strong);
    background-color: transparent;
  }

  .board__add-icon,
  .board__add {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    border-radius: var(--radius-md);
    color: var(--theme-meta-color);
    text-decoration: none;
  }

  .board__add-icon {
    inline-size: 1.75rem;
    block-size: 1.75rem;
  }

  .board__add {
    justify-content: flex-start;
    min-block-size: 2rem;
    padding-inline: var(--space-2);
    font-size: var(--font-size-small);
  }

  @media (hover: hover) and (pointer: fine) {
    .board__add-icon:hover,
    .board__add:hover {
      background-color: var(--theme-nav-hover);
      color: var(--theme-nav-text);
    }
  }

  @media (max-width: 48.75em) {
    .board__check,
    .board__add-icon {
      inline-size: 2.75rem;
      block-size: 2.75rem;
    }

    .board__add {
      min-block-size: 2.75rem;
    }

    .board__add-icon {
      margin-block: calc(-1 * var(--space-2));
      margin-inline-end: calc(-1 * var(--space-2));
    }

    .board__card-top {
      align-items: center;
      gap: var(--space-1);
    }
  }

  .board__empty,
  .board__more {
    padding-inline: var(--space-1);
    color: var(--theme-meta-color);
    font-size: var(--font-size-small);
  }

  .board__card[draggable="true"] {
    cursor: grab;
  }

  .board__card.is-dragging {
    border-color: var(--border-accent);
    box-shadow: var(--shadow-lift);
    opacity: 0.7;
    will-change: opacity;
  }

  .board__column.is-over {
    border-color: var(--border-accent);
    background-color: var(--surface-accent);
  }
}