/* ==========================================================================
   news.css — NEWS section: list card, filter chips, rail + rows, fold.
   ========================================================================== */

.news {
  --news-lh: calc(0.98rem * var(--lh-body));
  --news-py: 14px;
  --news-dot: 9px;
  --news-dot-y: calc(var(--news-py) + var(--news-lh) / 2);
}

.news [hidden] {
  display: none !important;
}

/* --------------------------------------------------------------------------
   Card + filter chips
   -------------------------------------------------------------------------- */
.news__card {
  border-radius: var(--r-lg);
}
.news__toolbar {
  padding: 18px 18px 14px;
}
.news__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
@media (pointer: fine) {
  .news__filters .chip {
    min-height: 34px;
  }
}
/* phones: one masked scroller row (same treatment as the publications toolbar) instead of two wrapped rows */
@media (max-width: 480px) {
  .news__filters {
    flex-wrap: nowrap;
    flex: 1 1 100%;
    min-width: 0;
    overflow-x: auto;
    padding: 3px 32px 3px 3px; /* room for focus rings; the end padding keeps the last chip clear of the fade */
    margin: -3px;
    scrollbar-width: none;
    scroll-padding-inline: 8px 36px; /* the chosen / focused chip scrolls clear of the fade */
    -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 32px), transparent);
    mask-image: linear-gradient(90deg, #000 calc(100% - 32px), transparent);
  }
  .news__filters::-webkit-scrollbar {
    display: none;
  }
  .news__filters .chip {
    flex: none;
  }
}

/* --------------------------------------------------------------------------
   Log: rail + rows
   -------------------------------------------------------------------------- */
.news__log {
  padding: 0 12px 4px 10px;
}
.news__list {
  margin: 0;
}

.news__item {
  --t: var(--accent-rgb);
  position: relative;
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  column-gap: 8px;
  border-radius: var(--r-xs);
  transition: background var(--dur-2);
}
.news__item[data-type="career"] {
  --t: var(--accent-2-rgb);
}
.news__item[data-type="award"] {
  --t: var(--accent-3-rgb);
}
.news__item::after {
  /* hairline separator */
  content: "";
  position: absolute;
  left: 30px;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--line);
}
.news__item.is-last::after {
  display: none;
}

/* rail */
.news__node {
  position: relative;
  grid-column: 1;
  grid-row: 1 / span 3;
}
.news__node::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--line-strong);
}
.news__node::after {
  content: "";
  position: absolute;
  left: 50%;
  top: calc(var(--news-dot-y) - var(--news-dot) / 2);
  width: var(--news-dot);
  height: var(--news-dot);
  margin-left: calc(var(--news-dot) / -2);
  box-sizing: border-box;
  border: 1.5px solid rgb(var(--t));
  border-radius: 50%;
  background: var(--bg);
  transition: background var(--dur-2), box-shadow var(--dur-3), transform var(--dur-3) var(--ease-out);
}
.news__log > .news__list:first-child > .news__item:first-child .news__node::before {
  top: var(--news-dot-y);
}
.news__item.is-last .news__node::before {
  bottom: auto;
  height: var(--news-dot-y);
}
.news__item.is-fade .news__node::before {
  -webkit-mask-image: linear-gradient(180deg, #000 20%, transparent);
  mask-image: linear-gradient(180deg, #000 20%, transparent);
}

/* first row of the log is the "newest" — light its node */
.news__log > .news__list:first-child > .news__item:first-child .news__node::after {
  background: rgb(var(--t));
  box-shadow: 0 0 0 4px rgba(var(--t), 0.18), 0 0 14px rgba(var(--t), 0.6);
}

/* cells */
.news__meta {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  height: calc(var(--news-py) + var(--news-lh));
  padding-top: var(--news-py);
}
.news__date {
  min-width: 4.4rem;
  color: var(--text-3);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}
.news__tag {
  --badge: var(--t);
  padding: 0.34em 0.62em;
  font-size: var(--fs-micro);
}
:root[data-theme="light"] .news__tag {
  /* keep amber / cyan tags at AA on a light surface */
  color: color-mix(in srgb, rgb(var(--badge)) 64%, var(--text));
}

.news__text {
  grid-column: 2;
  grid-row: 2;
  min-width: 0;
  padding: 4px 0 var(--news-py);
  color: var(--text-2);
  font-size: 0.98rem;
  line-height: var(--lh-body);
  text-wrap: pretty;
}
.news__text strong {
  color: var(--text);
  font-weight: 600;
}
.news__new {
  margin-right: 0.7em;
  vertical-align: 0.08em;
  font-size: var(--fs-micro);
}
:root[data-theme="light"] .news__new {
  color: color-mix(in srgb, rgb(var(--badge)) 62%, var(--text));
}

.news__view {
  position: relative;
  grid-column: 2;
  grid-row: 3;
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  height: var(--news-lh);
  margin: calc(var(--news-lh) * -0.25) 0 var(--news-py);
  color: var(--text-2);
  font-size: var(--fs-micro);
  letter-spacing: 0.02em;
  transition: color var(--dur-2);
}
.news__view::after {
  content: "";
  position: absolute;
  inset: -10px -8px;
}
.news__view-arrow {
  display: inline-flex;
  transition: transform var(--dur-3) var(--ease-out);
}
.news__view-arrow .icon {
  width: 13px;
  height: 13px;
}
.news__view:focus-visible {
  border-radius: var(--r-xs);
}
/* touch: real 44px target */
@media (pointer: coarse) {
  .news__view {
    height: var(--tap);
    margin-top: calc(var(--news-lh) * -0.25 - (var(--tap) - var(--news-lh)) / 2);
    margin-bottom: calc(var(--news-py) - (var(--tap) - var(--news-lh)) / 2);
  }
  .news__view::after {
    inset: 0 -8px;
  }
}

@media (hover: hover) and (pointer: fine) {
  .news__item:hover {
    background: linear-gradient(90deg, rgba(var(--t), 0.07), transparent 72%);
  }
  .news__item:hover .news__node::after {
    background: rgb(var(--t));
    box-shadow: 0 0 0 4px rgba(var(--t), 0.18), 0 0 14px rgba(var(--t), 0.6);
    transform: scale(1.15);
  }
  .news__view:hover {
    color: var(--accent);
  }
  .news__view:hover .news__view-arrow {
    transform: translateX(3px);
  }
}

/* wide: date · tag | text | action */
@media (min-width: 720px) {
  .news__item {
    grid-template-columns: 26px 188px minmax(0, 1fr) auto;
    column-gap: 0;
  }
  .news__item::after {
    left: 26px;
  }
  .news__meta {
    grid-column: 2;
  }
  .news__text {
    grid-column: 3;
    grid-row: 1;
    max-width: 78ch;
    padding-top: var(--news-py);
  }
  .news__view {
    grid-column: 4;
    grid-row: 1;
    align-self: start;
    margin: var(--news-py) 12px 0 20px;
  }
}

/* entrance for rows created by a filter change */
.news__item.is-enter {
  animation: news-in 0.55s var(--ease-out) both;
  animation-delay: calc(var(--i, 0) * 45ms);
}
@keyframes news-in {
  from {
    opacity: 0;
    transform: translate3d(0, 10px, 0);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* --------------------------------------------------------------------------
   Fold (show more / less) — grid-template-rows 0fr → 1fr
   -------------------------------------------------------------------------- */
.news__fold {
  display: grid;
  grid-template-rows: 0fr;
  visibility: hidden;
  transition: grid-template-rows 0.6s var(--ease-out), visibility 0s linear 0.6s;
}
.news__fold.is-open {
  grid-template-rows: 1fr;
  visibility: visible;
  transition-delay: 0s;
}
.news__fold-inner {
  min-height: 0;
  overflow: hidden;
}
@supports (overflow: clip) {
  /* clip only vertically for the collapse, so text-spacing overrides are not cut off sideways */
  .news__fold-inner {
    overflow-x: visible;
    overflow-y: clip;
  }
}

.news__more-wrap {
  display: flex;
  justify-content: center;
  padding: 6px 18px 22px;
}
.news__more {
  min-height: 44px;
  padding-inline: 1.4em;
  font-size: var(--fs-xs);
}
.news__more-count {
  color: var(--text-3);
  letter-spacing: 0.02em;
}
.news__more-count::before {
  content: "+";
}
.news__more[aria-expanded="true"] .news__more-count {
  display: none;
}
.news__more-icon {
  display: inline-flex;
  transition: transform var(--dur-3) var(--ease-out);
}
.news__more-icon.is-flipped {
  transform: rotate(180deg);
}

/* small screens: tighter card */
@media (max-width: 479.98px) {
  .news__toolbar {
    padding-inline: 14px;
  }
  .news__log {
    padding-right: 8px;
  }
}

/* --------------------------------------------------------------------------
   Calm dark: neutral rail, nodes and tags; accent only for the newest node and the "New" cue.
   The light theme keeps its per-type hues.
   -------------------------------------------------------------------------- */
:root:not([data-theme="light"]) .news__item {
  --t: var(--venue-preprint);
}
:root:not([data-theme="light"]) .news__log > .news__list:first-child > .news__item:first-child .news__node::after {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: none;
}
:root:not([data-theme="light"]) .news__new {
  --badge: var(--accent-rgb);
}
@media (hover: hover) and (pointer: fine) {
  :root:not([data-theme="light"]) .news__item:hover .news__node::after {
    box-shadow: none;
  }
}