.archive-page {
  --archive-line: color-mix(in oklch, var(--surface1) 72%, var(--text));
  --archive-muted: color-mix(in oklch, var(--subtext1) 78%, var(--base));
  --archive-accent: var(--lavender);
  --archive-rail-width: 5rem;
  display: grid;
  gap: 1.5rem;
  padding: 1.25em 1.25rem 0;

  @media (max-width: 720px) {
    gap: 1.25rem;
  }

  @media (max-width: 480px) {
    padding: 1rem 0.875rem 0;
  }
}

/* #region Hero */

.archive-hero {
  position: relative;
  display: grid;
  gap: 0.6rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--archive-line);

  &::after {
    content: "";
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2.5px;
    background: color-mix(in oklch, var(--text) 50%, var(--base));
  }
}

.archive-hero__eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
  margin: 0;
  color: var(--archive-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: lowercase;
}

.archive-hero__roman {
  position: absolute;
  right: 0;
  bottom: 1.5rem;
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 4.5rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  opacity: 0.06;
  line-height: 1;
  pointer-events: none;
  user-select: none;

  @media (max-width: 720px) {
    font-size: 4rem;
  }

  @media (max-width: 480px) {
    font-size: 2rem;
    opacity: 0.04;
  }
}

.archive-hero__sep {
  opacity: 0.3;
}

.archive-hero__title {
  margin: 0;
  color: var(--text);
  font-family: var(--font-serif);
  font-style: italic;
  font-synthesis: none;
  font-size: 3rem;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.02em;
  position: relative;
  z-index: 1;

  @media (max-width: 480px) {
    font-size: 2.1rem;
  }
}

/* #endregion */

/* #region Right rail (year jump) */

.archive-rail {
  position: fixed;
  top: 50%;
  left: max(1.25rem, calc((100vw - 50em) / 2 - var(--archive-rail-width) - 0.5rem));
  transform: translateY(-50%);
  z-index: 20;
  pointer-events: none;

  @media (max-width: 1023px) {
    display: none;
  }
}

.archive-rail__list {
  display: grid;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  text-align: left;
  pointer-events: auto;
}

.archive-rail__link {
  display: inline-block;
  padding: 0.1rem 0;
  color: var(--archive-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
  text-decoration: none;
  opacity: 0.6;
  transition:
    color 160ms ease,
    opacity 160ms ease;

  &:hover,
  &:focus-visible {
    color: var(--text);
    opacity: 1;
  }

  &:focus-visible {
    outline: 2px solid color-mix(in oklch, var(--archive-accent) 70%, transparent);
    outline-offset: 3px;
    border-radius: 2px;
  }
}

/* #endregion */

/* #region Era marker */

.archive-era {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.85rem;
  margin: 1.5rem 0 0.25rem;
  padding-top: 0.25rem;
  color: var(--archive-muted);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  scroll-margin-top: 4.5rem;

  &:first-child {
    margin-top: 0;
  }

  @media (max-width: 720px) {
    margin-top: 1.1rem;
  }
}

.archive-era__roman {
  flex: 0 0 auto;
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  letter-spacing: 0.28em;
}

.archive-era__year {
  flex: 0 0 auto;
  color: var(--archive-muted);
  font-size: 0.66rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.18em;
  opacity: 0.55;
}

/* #endregion */

.archive-stack {
  display: grid;
  gap: 1.35rem;
  /* Global running index for popup "N° 001" labels (see @counter-style
     archive-index). Lives here, above every group, so numbering is continuous
     across season groups — which is also why .archive-group must NOT carry
     content-visibility/contain (style containment would reset the counter
     per group, and paint containment would clip the popup). */
  counter-reset: archive-item;
}

.archive-group {
  --archive-accent: var(--lavender);
  position: relative;
  padding: 1.1rem 0 0;

  .archive-era + & {
    border-top: none;
    padding-top: 0.35rem;
  }

  &.spring {
    --archive-accent: var(--peach);
  }
  &.summer {
    --archive-accent: var(--green);
  }
  &.autumn {
    --archive-accent: var(--red);
  }
  &.winter {
    --archive-accent: var(--blue);
  }
}

.archive-group__header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: baseline;
  margin-bottom: 0.85rem;

  @media (max-width: 480px) {
    gap: 0.6rem;
  }
}

.archive-group__title {
  margin: 0;
  color: var(--archive-accent);
  font-family: var(--font-serif);
  text-transform: lowercase;
  font-weight: lighter;
  font-style: italic;
  font-size: 1.7rem;
  letter-spacing: 0;
  padding-inline: 0.2rem;
}

.archive-group__count {
  align-self: baseline;
  color: var(--archive-muted);
  font-family: var(--font-serif);
  font-variant-numeric: oldstyle-nums;
}

.timeline {
  position: relative;
  display: grid;
  gap: 0.15rem;
  padding-left: 1.25rem;
}

.archive-item {
  position: relative;
  counter-increment: archive-item;
  text-align: left;

  & > .archive-item__row {
    display: grid;
    grid-template-columns: 4.9rem minmax(0, 1fr);
    gap: 0.85rem;
    align-items: baseline;
    padding: 0.55rem 0.35rem 0.55rem 0;

    @media (max-width: 480px) {
      grid-template-columns: 1fr;
      gap: 0.1rem;
      padding: 0.7rem 0.5rem 0.7rem 0;
    }
  }

  /* Each previewable item is its own anchor; anchor-scope keeps the shared
     name local to this subtree so every popup binds to its own item. */
  &.has-preview {
    anchor-name: --archive-anchor;
    anchor-scope: --archive-anchor;
  }

  & + & {
    border-top: 0.5px solid color-mix(in oklch, var(--surface0) 80%, transparent);
  }
}

/* #region Popup */

/* 3-digit zero-padded running index: "001", "012", "123". */
@counter-style archive-index {
  system: numeric;
  symbols: "0" "1" "2" "3" "4" "5" "6" "7" "8" "9";
  pad: 3 "0";
}

/* Placement fallbacks for anchor positioning. The preferred placement is set
   on .archive-popup directly; position-try flips to these (in order, first that
   fits) when that side would overflow the viewport — replacing the old JS
   measure-and-flip logic. */
@position-try --archive-below {
  inset: auto;
  top: anchor(bottom);
  left: anchor(left);
  margin: 12px 0 0;
  width: min(20rem, calc(100vw - 2rem));
}

@position-try --archive-above {
  inset: auto;
  top: auto;
  bottom: anchor(top);
  left: anchor(left);
  margin: 0 0 12px;
  width: min(20rem, calc(100vw - 2rem));
}

.archive-popup {
  --popup-accent: var(--archive-accent);
  position: fixed;
  position-anchor: --archive-anchor;
  z-index: 100;
  box-sizing: border-box;

  /* Default placement: below the item (viewports 720–1280px). */
  top: anchor(bottom);
  left: anchor(left);
  margin: 12px 0 0;
  width: min(20rem, calc(100vw - 2rem));
  max-width: calc(100vw - 24px);
  max-height: calc(100dvh - 24px);
  overflow: auto;
  position-try-fallbacks: --archive-above;

  padding: 0.85rem 1rem 0.9rem;
  border: 1px dashed var(--surface0);
  border-radius: 5px;
  background: var(--mantle);

  /* Closed state. display:none keeps the excerpt subtree out of layout and the
     a11y tree until reveal — same laziness the old <template> gave us — while
     @starting-style + allow-discrete still let it animate in. */
  display: none;
  opacity: 0;
  transform: translateY(-3px);
  pointer-events: none;
  transition:
    opacity 140ms ease,
    transform 180ms cubic-bezier(0.22, 1, 0.36, 1),
    display 140ms allow-discrete;
  transition-delay: 140ms; /* close delay (was CLOSE_DELAY) */

  /* Wider viewports: prefer the right of the item, fall back to below/above. */
  @media (min-width: 1280px) {
    top: anchor(top);
    left: anchor(right);
    margin: -4px 0 0 12px;
    width: 14rem;
    position-try-fallbacks: --archive-below, --archive-above;
  }

  /* Touch / narrow screens: no hover preview at all. */
  @media (hover: none), (max-width: 720px) {
    display: none !important;
  }
}

.archive-item.has-preview:hover > .archive-popup,
.archive-item.has-preview:focus-within > .archive-popup {
  display: block;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  transition-delay: 180ms; /* open delay (was HOVER_DELAY) */
}

@starting-style {
  .archive-item.has-preview:hover > .archive-popup,
  .archive-item.has-preview:focus-within > .archive-popup {
    opacity: 0;
    transform: translateY(-3px);
  }
}

/* Placement depends entirely on anchor positioning; where it is unsupported,
   fail closed (no preview) rather than render the popup at a broken position. */
@supports not (anchor-name: --a) {
  .archive-popup {
    display: none !important;
  }
}

.archive-popup__eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  margin: 0 0 0.5rem;
  padding-bottom: 0.45rem;
  border-bottom: 0.5px solid color-mix(in oklch, var(--surface1) 65%, transparent);
  color: var(--archive-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.archive-popup__index {
  color: color-mix(in oklch, var(--popup-accent) 80%, var(--text));
  font-weight: 600;

  &::before {
    content: "N° " counter(archive-item, archive-index);
  }
}

/* Read time arrives as the raw "5 min" from the template; CSS prepends the
   separator and appends " read", and the eyebrow's text-transform uppercases
   the lot — "· 5 MIN READ". Both pseudos only exist when the span is rendered
   (i.e. when the post actually has a read time). */
.archive-popup__read {
  &::before {
    content: "·";
    margin: 0 0.4em;
    opacity: 0.4;
  }

  &::after {
    content: " read";
  }
}

.archive-popup__excerpt {
  margin: 0;
  color: var(--archive-muted);
  font-family: var(--font-serif);
  font-size: 0.88rem;
  line-height: 1.55;

  & :where(p, ul, ol) {
    margin: 0 0 0.35em;

    &:last-child {
      margin-bottom: 0;
    }
  }

  & :where(img, video, iframe, figure, pre) {
    display: none;
  }
}

/* #endregion */

.article-meta {
  margin: 0;
  color: var(--archive-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.4;
  white-space: nowrap;
  text-transform: lowercase;
  font-weight: lighter;

  @media (max-width: 480px) {
    white-space: normal;
  }
}

a.archive-title {
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 1.02rem;
  font-weight: 500;
  line-height: 1.45;
  overflow-wrap: anywhere;
  transition: color 140ms ease;

  &:hover,
  &:focus-visible {
    color: var(--archive-accent);
    text-decoration-color: currentColor;
  }

  &:focus-visible {
    outline: 2px solid color-mix(in oklch, var(--archive-accent) 70%, transparent);
    outline-offset: 3px;
    border-radius: 3px;
  }
}