@layer components {
  /* Projects Overview
     ========================================================================== */

  /* Timeline */
  .timeline-container {
    padding-block-end: var(--block-space);
  }

  .timeline {
    --month-width: 4.5rem;
    --month-max-width: 8rem;
    --row-height: 4rem;
    --row-gap: 0.5rem;

    display: grid;
    grid-template-columns: repeat(var(--month-count), minmax(var(--month-width), 1fr));
    /* Floor keeps narrow screens scrolling; the max-width caps how wide each
       month grows so columns fill available space without ballooning. */
    min-width: calc(var(--month-count) * var(--month-width));
    max-width: calc(var(--month-count) * var(--month-max-width));
  }

  .timeline__header {
    display: contents;
  }

  .timeline__month-header {
    position: sticky;
    top: 0;
    background: var(--color-bg);
    padding: var(--block-space-half) var(--inline-space-half);
    border-left: 1px dashed var(--color-gray);
    font-size: var(--font-small-responsive);
    font-weight: 500;
    color: var(--color-ink-muted);
    text-align: center;
    z-index: 1;
  }

  .timeline__month-header--current {
    color: var(--color-ink);
    font-weight: 600;
    background: color-mix(in oklch, var(--color-blue-bright) 8%, var(--color-bg));
  }

  .timeline__body {
    display: grid;
    grid-template-columns: repeat(var(--month-count), minmax(var(--month-width), 1fr));
    grid-column: 1 / -1;
    gap: var(--row-gap);
    padding-block: var(--block-space-half);
    overflow: visible;
    position: relative;
  }

  /* Dotted vertical lines at each month boundary - aligned with header borders */
  .timeline__body::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-image: repeating-linear-gradient(
      to right,
      var(--color-gray) 0 1px,
      transparent 1px calc(100% / var(--month-count))
    );
    -webkit-mask-image: repeating-linear-gradient(
      to bottom,
      black 0 3px,
      transparent 3px 6px
    );
    mask-image: repeating-linear-gradient(
      to bottom,
      black 0 3px,
      transparent 3px 6px
    );
  }

  /* The actual bar for a project */
  .timeline__bar {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--inline-space);
    min-height: var(--row-height);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--color-ink);
    transition: filter 150ms ease;
    overflow: visible;

    &:hover {
      filter: brightness(0.95);
    }
  }

  .timeline__bar--blue-muted {
    background: oklch(96% 0.01 255);
    border: 1px solid oklch(88% 0.03 255);

    html[data-theme="dark"] & { background: oklch(16% 0.01 255); border-color: oklch(22% 0.03 255); }
    @media (prefers-color-scheme: dark) { html:not([data-theme]) & { background: oklch(16% 0.01 255); border-color: oklch(22% 0.03 255); } }
  }

  .timeline__bar--blue-light {
    background: oklch(92% 0.03 255);
    border: 1px solid oklch(82% 0.06 255);

    html[data-theme="dark"] & { background: oklch(22% 0.03 255); border-color: oklch(30% 0.06 255); }
    @media (prefers-color-scheme: dark) { html:not([data-theme]) & { background: oklch(22% 0.03 255); border-color: oklch(30% 0.06 255); } }
  }

  .timeline__bar--blue-vivid {
    background: oklch(80% 0.08 255);
    border: 1px solid oklch(68% 0.12 255);

    html[data-theme="dark"] & { background: oklch(30% 0.06 255); border-color: oklch(40% 0.1 255); }
    @media (prefers-color-scheme: dark) { html:not([data-theme]) & { background: oklch(30% 0.06 255); border-color: oklch(40% 0.1 255); } }
  }

  .timeline__bar--blue-deep {
    background: oklch(68% 0.12 255);
    border: 1px solid oklch(55% 0.15 255);

    html[data-theme="dark"] & { background: oklch(38% 0.09 255); border-color: oklch(48% 0.12 255); }
    @media (prefers-color-scheme: dark) { html:not([data-theme]) & { background: oklch(38% 0.09 255); border-color: oklch(48% 0.12 255); } }
  }

  /* Sticky content inside the bar - no vertical padding, just content height */
  .timeline__bar-content {
    position: sticky;
    left: 0;
    display: flex;
    align-items: center;
    gap: var(--inline-space);
    padding-inline: var(--inline-space);
    background: inherit;
    z-index: 3;
  }

  /* Name text - inherits bar background to cover milestone lines */
  .timeline__bar-name {
    font-size: var(--font-small-responsive);
    font-weight: 500;
    white-space: nowrap;
    background: inherit;
    padding-inline: 0.3em;
  }

  .timeline__bar-link {
    color: inherit;
    text-decoration: none;

    &:hover {
      text-decoration: underline;
    }
  }

  /* Milestones with vertical dotted lines */
  .timeline__milestones {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: visible;
  }

  /* Dotted line - rendered first (behind labels) */
  .timeline__milestone-line {
    position: absolute;
    left: var(--milestone-position, 0);
    top: 0;
    bottom: 0;
    border-left: 2px dashed var(--color-gray-dark);
  }

  /* Label wrapper - rendered second (in front of lines) */
  .timeline__milestone-label-wrapper {
    position: absolute;
    left: var(--milestone-position, 0);
    top: 0;
    bottom: 0;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .timeline__milestone-label-wrapper--top {
    justify-content: flex-start;
    padding-top: 0.25rem;
  }

  .timeline__milestone-label-wrapper--bottom {
    justify-content: flex-end;
    padding-bottom: 0.25rem;
  }

  /* Milestone label */
  .timeline__milestone-label {
    background: var(--color-bg);
    padding: 0.1em 0.4em;
    font-size: 0.55rem;
    font-weight: 500;
    color: var(--color-ink-muted);
    white-space: nowrap;
    border-radius: 0.25em;
    border: 1px solid var(--color-gray);
    pointer-events: auto;

    &:hover {
      color: var(--color-ink);
    }
  }

  .timeline__card--unscheduled {
    max-width: 32rem;
    border: 2px dashed var(--color-gray);
    border-radius: var(--border-radius);
  }

  .timeline__card-name {
    font-size: var(--font-small-responsive);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .timeline__unscheduled {
    padding-block-start: var(--block-space);
  }
}