/* Articles — the index (/articles, /zh/articles) and the card system the article
   page reuses for "Related articles". Editorial, not boxed: covers sit on the
   mineral field, items are separated by hairlines, and each card is one link. */

/* ── masthead ──────────────────────────────── */

.arc-hero {
  min-height: clamp(420px, 56svh, 600px);
}

.arc-hero__plate {
  object-position: center 62%;
}

[data-theme="dark"] .arc-hero__plate {
  filter: brightness(0.42) saturate(0.85) contrast(1.05);
}

.arc-hero__inner {
  align-items: end;
}

.arc-hero__copy {
  gap: 20px;
}

.arc-crumbs {
  margin-bottom: 6px;
}

.arc-crumbs .crumbs {
  color: var(--ink-2);
}

.arc-crumbs a {
  text-decoration: underline;
  text-decoration-color: color-mix(in oklab, currentColor 30%, transparent);
  text-underline-offset: 0.22em;
}

.arc-hero__title {
  max-width: 13ch;
}

:lang(zh) .arc-hero__title {
  max-width: 11em;
}

.arc-hero__dek {
  max-width: 50ch;
  color: var(--ink);
  opacity: 0.84;
}

/* the archive readout pinned in the corner of the masthead */
.arc-ledger {
  width: min(310px, 100%);
  padding: 16px 18px 14px;
  border-radius: 22px;
  background: var(--surface-glass);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  box-shadow: var(--shadow-float), 0 0 0 1px color-mix(in oklab, var(--line) 60%, transparent) inset;
}

.arc-ledger__title {
  font-size: 0.8125rem;
  font-weight: 620;
  color: var(--ink-2);
}

.arc-ledger__rows {
  display: grid;
  margin: 8px 0 12px;
}

.arc-ledger__rows > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 9px 0;
  border-bottom: 1px solid color-mix(in oklab, var(--line) 70%, transparent);
}

.arc-ledger__rows dt {
  font-size: 0.875rem;
  color: var(--ink-2);
}

.arc-ledger__rows dd {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 560;
  letter-spacing: -0.01em;
  display: inline-flex;
  gap: 6px;
  align-items: baseline;
}

.arc-ledger__rows dd.arc-ledger__num {
  font-size: 1.375rem;
  font-weight: 440;
  font-stretch: 86%;
  letter-spacing: -0.03em;
}

.arc-ledger__and {
  font-size: 0.8125rem;
  font-weight: 460;
  color: var(--ink-3);
}

.arc-ledger__edition {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--link);
}

.arc-ledger__edition:hover {
  color: var(--link-hover);
  text-decoration: underline;
  text-underline-offset: 0.22em;
}

/* ── topics (quiet filters) ────────────────── */

.arc {
  padding-bottom: clamp(24px, 3vw, 48px);
}

.arc-topics {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: clamp(24px, 3vw, 36px);
}

.arc-topics__label {
  flex: none;
  font-size: 0.8125rem;
  font-weight: 620;
  color: var(--ink-3);
}

.arc-topics__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.arc-topics__list .chip {
  height: 32px;
  padding-inline: 12px;
  background: transparent;
  box-shadow: 0 0 0 1px var(--line) inset;
}

.arc-topics__list .chip:hover {
  box-shadow: 0 0 0 1px var(--line-strong) inset;
}

.arc-topics__list .chip[aria-pressed="true"] {
  background: var(--ink);
  color: var(--ink-inverse);
  box-shadow: none;
}

@media (max-width: 760px) {
  .arc-topics {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .arc-topics__list {
    flex-wrap: nowrap;
    overflow-x: auto;
    width: calc(100% + var(--margin) * 2);
    margin-inline: calc(var(--margin) * -1);
    padding: 2px var(--margin) 6px;
    scrollbar-width: none;
    mask-image: linear-gradient(90deg, transparent, #000 var(--margin), #000 calc(100% - var(--margin)), transparent);
  }

  .arc-topics__list::-webkit-scrollbar {
    display: none;
  }
}

/* ── sections ──────────────────────────────── */

.arc-section {
  padding-top: clamp(44px, 5.4vw, 80px);
}

.arc-section__title {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: clamp(22px, 2.6vw, 34px);
  font-size: 1.125rem;
  font-weight: 640;
  letter-spacing: -0.01em;
}

.arc-section__title::after {
  content: "";
  flex: 1;
  height: 1px;
  align-self: center;
  background: var(--line);
}

.arc-section__count {
  font-size: 0.875rem;
  font-weight: 520;
  color: var(--ink-3);
}

/* ── media frames ──────────────────────────── */

.amedia {
  position: relative;
  aspect-ratio: var(--ar, 16 / 9);
  border-radius: var(--r-card);
  overflow: hidden;
  isolation: isolate;
  background: var(--mat, var(--surface-2));
}

.amedia::after {
  /* a hairline so white screenshots don't melt into the field */
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgb(11 34 48 / 0.08);
  pointer-events: none;
}

[data-theme="dark"] .amedia::after {
  box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.06);
}

/* placement is computed per image (see articles-shared.js frame()) */
.amedia__img {
  position: absolute;
  z-index: 1;
  max-width: none;
  object-fit: fill;
  transition: transform var(--t-slow) var(--ease-out);
}

/* ── cards ─────────────────────────────────── */

.acard {
  position: relative;
  min-width: 0;
}

.acard__body {
  display: grid;
  align-content: start;
  gap: 10px;
  min-width: 0;
}

.acard__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 14px;
  font-size: 0.8125rem;
  line-height: 1.4;
  color: var(--ink-3);
}

.acard__cat {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 620;
  color: var(--ink-2);
}

.acard__cat::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--current);
}

.acard__title {
  font-size: 1.25rem;
  font-weight: 640;
  line-height: 1.24;
  letter-spacing: -0.014em;
  text-wrap: balance;
}

:lang(zh) .acard__title {
  letter-spacing: 0;
  line-height: 1.38;
}

.acard__link::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
}

.acard__link:focus-visible {
  outline: none;
}

.acard:has(.acard__link:focus-visible) {
  outline: 2px solid var(--focus);
  outline-offset: 8px;
  border-radius: calc(var(--r-card) + 4px);
}

.acard:hover .acard__title,
.acard:has(.acard__link:focus-visible) .acard__title {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  text-decoration-color: color-mix(in oklab, currentColor 40%, transparent);
}

.acard:hover .amedia__img {
  transform: scale(1.018);
}

.acard__desc {
  font-size: 0.9375rem;
  line-height: 1.56;
  color: var(--ink-2);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-wrap: pretty;
}

.acard__read {
  justify-self: start;
  margin-top: 4px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--link);
}

.acard__read .icon {
  display: none;
}

.acard:hover .acard__read {
  color: var(--link-hover);
  text-decoration: underline;
  text-underline-offset: 0.22em;
}

.acard__day {
  display: none;
}

/* ── featured: an editorial spread, one shape per role ── */

.arc-bento {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-template-areas:
    "p p p p p p p d d d d d"
    "p p p p p p p s s s s s"
    "x x x x x x x x x x x x";
  gap: 0 var(--gutter);
}

.acard--primary {
  grid-area: p;
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-right: clamp(0px, 1.4vw, 20px);
}

.acard--primary .acard__title {
  font-size: clamp(1.75rem, 2.7vw, 2.6rem);
  font-weight: 660;
  font-stretch: 88%;
  line-height: 1.06;
  letter-spacing: -0.026em;
}

:lang(zh) .acard--primary .acard__title {
  font-stretch: 100%;
  letter-spacing: 0;
  line-height: 1.24;
}

.acard--primary .acard__desc {
  font-size: 1.0625rem;
  max-width: 58ch;
  -webkit-line-clamp: 4;
}

.acard--deliveries,
.acard--superclaw {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 22px;
  align-items: start;
  align-self: start;
}

.acard--deliveries {
  grid-area: d;
  padding-bottom: 28px;
}

.acard--superclaw {
  grid-area: s;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.acard--deliveries .acard__desc,
.acard--superclaw .acard__desc {
  -webkit-line-clamp: 4;
}

.acard--dispatch {
  grid-area: x;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: var(--gutter);
  align-items: center;
  margin-top: clamp(36px, 4vw, 56px);
  padding-top: clamp(28px, 3vw, 40px);
  border-top: 1px solid var(--line);
}

.acard--dispatch .amedia {
  order: 2;
}

.acard--dispatch .acard__body {
  padding-right: clamp(0px, 3vw, 48px);
}

.acard--dispatch .acard__title {
  font-size: clamp(1.5rem, 2.1vw, 2rem);
  font-weight: 650;
  font-stretch: 90%;
  line-height: 1.12;
  letter-spacing: -0.022em;
}

:lang(zh) .acard--dispatch .acard__title {
  font-stretch: 100%;
  letter-spacing: 0;
  line-height: 1.3;
}

.acard--skel {
  display: grid;
  align-content: start;
}

@media (max-width: 1099px) {
  .arc-bento {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-areas:
      "p p"
      "d s"
      "x x";
    gap: 0 var(--gutter);
  }

  .acard--primary {
    padding: 0 0 32px;
  }

  .acard--deliveries,
  .acard--superclaw {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 32px 0 0;
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 699px) {
  .arc-bento {
    grid-template-columns: 1fr;
    grid-template-areas: "p" "d" "s" "x";
  }

  .acard--primary {
    gap: 18px;
  }

  .acard--deliveries,
  .acard--superclaw {
    padding-bottom: 0;
  }

  .acard--dispatch {
    grid-template-columns: 1fr;
    gap: 18px;
    margin-top: 32px;
    padding-top: 32px;
  }

  .acard--dispatch .amedia {
    order: 0;
  }
}

/* ── latest: the logbook ───────────────────── */

.arc-log {
  display: grid;
}

.arc-log > li:last-child .acard--log {
  border-bottom: 1px solid var(--line);
}

.acard--log {
  display: grid;
  grid-template-columns: 136px minmax(0, 4fr) minmax(0, 6fr);
  gap: 20px clamp(20px, 2.4vw, 36px);
  align-items: start;
  padding-block: clamp(22px, 2.6vw, 32px);
  border-top: 1px solid var(--line);
}

.acard--log .acard__day {
  display: block;
  padding-top: 2px;
  font-size: 1.25rem;
  font-weight: 380;
  font-stretch: 86%;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.acard--log .acard__date {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.acard--log .acard__title {
  max-width: 30ch;
  font-size: 1.4375rem;
  font-stretch: 94%;
  line-height: 1.18;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

:lang(zh) .acard--log .acard__title {
  font-stretch: 100%;
  letter-spacing: 0;
  line-height: 1.36;
}

.acard--log .acard__desc {
  max-width: 62ch;
}

.acard--log.acard--skel {
  grid-template-columns: 136px minmax(0, 4fr) minmax(0, 6fr);
}

@media (max-width: 899px) {
  .acard--log,
  .acard--log.acard--skel {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .acard--log .acard__day {
    display: none;
  }

  .acard--log .acard__date {
    position: static;
    width: auto;
    height: auto;
    overflow: visible;
    clip: auto;
  }
}

/* ── release schedule: a tide table ────────── */

.arc-schedule__grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: 20px var(--gutter);
  align-items: start;
}

.arc-schedule__lede {
  max-width: 34ch;
  color: var(--ink-2);
  font-size: 0.9375rem;
}

.arc-tide {
  display: grid;
}

.arc-tide__row {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr) auto;
  gap: 8px 24px;
  align-items: baseline;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.arc-tide__row:last-child {
  border-bottom: 1px solid var(--line);
}

.arc-tide__when {
  display: grid;
  gap: 2px;
}

.arc-tide__date {
  font-size: 1.125rem;
  font-weight: 460;
  font-stretch: 88%;
  letter-spacing: -0.02em;
}

.arc-tide__time {
  font-size: 0.8125rem;
  color: var(--ink-3);
}

.arc-tide__title {
  font-weight: 560;
  color: var(--ink);
  text-wrap: pretty;
}

.arc-tide__empty {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 16px;
  align-items: start;
  padding: 20px 22px;
  border-radius: var(--r-card);
  background: var(--surface);
}

.arc-tide__empty .icon {
  grid-row: span 2;
  margin-top: 2px;
  color: var(--held);
}

.arc-tide__empty-title {
  font-weight: 620;
}

.arc-tide__empty-body {
  font-size: 0.9375rem;
  color: var(--ink-2);
}

@media (max-width: 899px) {
  .arc-schedule__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .arc-tide__row {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .arc-tide__title {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}

/* ── states ────────────────────────────────── */

.arc-error {
  margin-top: var(--section-tight);
  border-radius: var(--r-panel);
  background: var(--surface);
}

.arc-note {
  padding: 22px 0;
  color: var(--ink-2);
}

@media (max-width: 900px) {
  .arc-hero__inner {
    gap: 24px;
  }
}

@media (max-width: 640px) {
  .arc-hero {
    min-height: 0;
  }

  .arc-hero__plate {
    object-position: 30% 62%;
  }

  .arc-ledger {
    width: 100%;
  }

  .arc-ledger__rows > div:nth-child(3) {
    display: none;
  }
}