/* LinkUp · Release Archive
   Theme-aligned with hero/current-release. Tokens:
   --bg-deep, --accent (#4f7df5), --accent-2, --border, --border-strong, --radius-*
*/

.lu-arc {
  --arc-bg: #07080d;
  --arc-bg-2: #0b0d14;
  --arc-fg: #e6ebff;
  --arc-mute: #8a93b3;
  --arc-mute-2: #5b6480;
  --arc-line: rgba(140, 160, 220, 0.10);
  --arc-line-strong: rgba(140, 160, 220, 0.20);
  --arc-acc: #4f7df5;
  --arc-acc-2: #7aa2ff;
  --arc-amber: #f5b34f;
  --arc-green: #4fdc8a;
  --arc-purple: #a877ff;

  position: relative;
  isolation: isolate;
  padding: clamp(64px, 9vw, 140px) 0;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(79,125,245,.12), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(168,119,255,.10), transparent 60%),
    var(--arc-bg);
  color: var(--arc-fg);
  font-family: ui-sans-serif, system-ui, -apple-system, "Inter", sans-serif;
  overflow: hidden;
}

/* ---------- Ambient ---------- */
.lu-arc__bg { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.lu-arc__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--arc-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--arc-line) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 30%, transparent 80%);
  opacity: .55;
}
.lu-arc__orb {
  position: absolute; width: 520px; height: 520px; border-radius: 50%;
  filter: blur(110px); opacity: .35; animation: lu-arc-drift 22s ease-in-out infinite alternate;
}
.lu-arc__orb--a { top: -160px; right: -120px; background: radial-gradient(circle, rgba(79,125,245,.55), transparent 65%); }
.lu-arc__orb--b { bottom: -200px; left: -140px; background: radial-gradient(circle, rgba(168,119,255,.45), transparent 65%); animation-duration: 28s; }
@keyframes lu-arc-drift {
  0%   { transform: translate(0,0) scale(1); }
  100% { transform: translate(40px,30px) scale(1.08); }
}
.lu-arc__scan {
  position: absolute; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(122,162,255,.6), transparent);
  top: 0; animation: lu-arc-scan 9s linear infinite; opacity: .35;
}
@keyframes lu-arc-scan { 0% { top: 0; } 100% { top: 100%; } }

/* ---------- Container ---------- */
.lu-arc__container {
  position: relative; z-index: 1;
  width: min(1280px, 92%);
  margin: 0 auto;
}

/* ---------- Header ---------- */
.lu-arc__header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: end;
  margin-bottom: 36px;
}
@media (max-width: 900px) { .lu-arc__header { grid-template-columns: 1fr; } }

.lu-arc__label {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 14px;
  border: 1px solid var(--arc-line-strong);
  border-radius: 999px;
  font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--arc-mute);
  background: rgba(140,160,220,.04);
  backdrop-filter: blur(8px);
  margin-bottom: 18px;
}
.lu-arc__label-pulse {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--arc-acc);
  box-shadow: 0 0 0 0 rgba(79,125,245,.6);
  animation: lu-arc-pulse 2s ease-out infinite;
}
@keyframes lu-arc-pulse {
  0% { box-shadow: 0 0 0 0 rgba(79,125,245,.55); }
  70% { box-shadow: 0 0 0 10px rgba(79,125,245,0); }
  100% { box-shadow: 0 0 0 0 rgba(79,125,245,0); }
}
.lu-arc__label-divider { color: var(--arc-mute-2); }
.lu-arc__label-mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--arc-acc-2); }

.lu-arc__title {
  font-size: clamp(36px, 5.2vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  font-weight: 600;
  margin: 0 0 14px;
  background: linear-gradient(180deg, #fff 0%, #b8c2e0 110%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lu-arc__sub {
  margin: 0;
  color: var(--arc-mute);
  font-size: 15px;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
}
.lu-arc__sub-mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px; color: var(--arc-mute-2);
  padding: 3px 9px; border: 1px solid var(--arc-line); border-radius: 6px;
}

/* Right side: search + filters */
.lu-arc__head-right {
  display: flex; flex-direction: column; gap: 14px; align-items: flex-end;
}
@media (max-width: 900px) { .lu-arc__head-right { align-items: stretch; } }

.lu-arc__search {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  width: min(360px, 100%);
  background: rgba(140,160,220,.04);
  border: 1px solid var(--arc-line-strong);
  border-radius: 12px;
  transition: border-color .25s, background .25s;
}
.lu-arc__search:focus-within {
  border-color: rgba(79,125,245,.5);
  background: rgba(79,125,245,.06);
  box-shadow: 0 0 0 4px rgba(79,125,245,.10);
}
.lu-arc__search svg { width: 16px; height: 16px; color: var(--arc-mute); flex-shrink: 0; }
.lu-arc__search input {
  flex: 1; background: transparent; border: 0; outline: 0;
  color: var(--arc-fg); font-size: 13.5px; font-family: inherit;
}
.lu-arc__search input::placeholder { color: var(--arc-mute-2); }
.lu-arc__search-kbd {
  font-family: ui-monospace, monospace; font-size: 10.5px;
  padding: 3px 7px; border: 1px solid var(--arc-line-strong); border-radius: 5px;
  color: var(--arc-mute);
}

.lu-arc__filters {
  display: inline-flex; gap: 4px; padding: 4px;
  border: 1px solid var(--arc-line-strong); border-radius: 10px;
  background: rgba(140,160,220,.03);
}
.lu-arc__filter {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 12px;
  background: transparent; border: 0;
  color: var(--arc-mute);
  font-size: 12.5px; font-family: inherit; font-weight: 500;
  border-radius: 7px; cursor: pointer;
  transition: color .2s, background .2s;
}
.lu-arc__filter span {
  font-family: ui-monospace, monospace; font-size: 10.5px;
  padding: 1px 6px; border-radius: 4px;
  background: rgba(140,160,220,.08); color: var(--arc-mute-2);
}
.lu-arc__filter:hover { color: var(--arc-fg); }
.lu-arc__filter.is-active {
  background: linear-gradient(180deg, rgba(79,125,245,.18), rgba(79,125,245,.08));
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(79,125,245,.35);
}
.lu-arc__filter.is-active span { background: rgba(79,125,245,.25); color: #cdddff; }

/* ---------- Timeline ---------- */
.lu-arc__timeline {
  margin: 8px 0 36px;
  padding: 24px 28px 36px;
  border: 1px solid var(--arc-line);
  border-radius: 14px;
  background:
    linear-gradient(180deg, rgba(140,160,220,.04), rgba(140,160,220,0));
  position: relative;
}
.lu-arc__timeline-track {
  position: relative; height: 2px;
  background: linear-gradient(90deg, var(--arc-line-strong), rgba(79,125,245,.4));
  border-radius: 2px;
}
.lu-arc__tl-fill {
  position: absolute; left: 0; top: 0; height: 100%;
  width: 95%;
  background: linear-gradient(90deg, transparent, var(--arc-acc));
  border-radius: 2px;
  box-shadow: 0 0 12px rgba(79,125,245,.5);
}
.lu-arc__tl-tick {
  position: absolute; top: 50%; transform: translate(-50%, -50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.lu-arc__tl-tick i {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--arc-bg); border: 2px solid var(--arc-line-strong);
  transition: all .3s;
}
.lu-arc__tl-tick b {
  position: absolute; top: 14px;
  font-family: ui-monospace, monospace;
  font-size: 10.5px; font-weight: 500;
  color: var(--arc-mute); letter-spacing: .04em;
  white-space: nowrap;
}
.lu-arc__tl-tick.is-current i {
  background: var(--arc-acc); border-color: var(--arc-acc-2);
  box-shadow: 0 0 0 4px rgba(79,125,245,.20), 0 0 14px rgba(79,125,245,.6);
  animation: lu-arc-pulse 2.4s ease-out infinite;
}
.lu-arc__tl-tick.is-current b { color: var(--arc-acc-2); }

/* ---------- Table ---------- */
.lu-arc__table-wrap {
  position: relative;
  border: 1px solid var(--arc-line-strong);
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(140,160,220,.05) 0%, rgba(140,160,220,0) 100%),
    rgba(11,13,20,.6);
  backdrop-filter: blur(8px);
  overflow: hidden;
}
.lu-arc__table-glow {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(500px 200px at 50% 0%, rgba(79,125,245,.10), transparent 70%);
}

.lu-arc__table {
  display: grid; width: 100%;
  position: relative;
}

/* Column template: ver | name | features | issues | support | actions */
.lu-arc__thead, .lu-arc__row {
  display: grid;
  grid-template-columns: 130px 1.2fr 1.6fr 1.4fr 150px 160px;
  gap: 0;
}

.lu-arc__thead {
  border-bottom: 1px solid var(--arc-line-strong);
  background: rgba(140,160,220,.04);
}
.lu-arc__th {
  padding: 16px 18px;
  font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--arc-mute);
  display: flex; align-items: center; gap: 8px;
  font-weight: 500;
}
.lu-arc__th-num {
  font-family: ui-monospace, monospace; font-size: 10px;
  color: var(--arc-mute-2);
  padding: 2px 6px; border: 1px solid var(--arc-line); border-radius: 4px;
}

/* Row */
.lu-arc__row {
  border-bottom: 1px solid var(--arc-line);
  transition: background .25s, opacity .25s, transform .25s;
  position: relative;
}
.lu-arc__row:last-child { border-bottom: 0; }
.lu-arc__row:hover {
  background: linear-gradient(90deg, rgba(79,125,245,.05), rgba(79,125,245,.02) 50%, transparent);
}
.lu-arc__row::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
  background: var(--arc-acc);
  transform: scaleY(0); transform-origin: top;
  transition: transform .35s ease;
}
.lu-arc__row:hover::before { transform: scaleY(1); }

.lu-arc__row.is-current {
  background:
    linear-gradient(90deg, rgba(79,125,245,.08), rgba(79,125,245,.02) 60%, transparent);
}
.lu-arc__row.is-current::before { transform: scaleY(1); }

.lu-arc__row.is-hidden {
  display: none;
}
.lu-arc__row.is-dim { opacity: .35; }

.lu-arc__cell {
  padding: 20px 18px;
  font-size: 13.5px;
  color: var(--arc-fg);
  display: flex; flex-direction: column; gap: 6px;
  justify-content: flex-start;
}

.lu-arc__cell--ver { gap: 8px; }
.lu-arc__ver-tag {
  display: inline-flex; align-items: center;
  font-family: ui-monospace, monospace;
  font-size: 13px; font-weight: 600;
  color: var(--arc-fg);
  padding: 4px 10px;
  border: 1px solid var(--arc-line-strong);
  border-radius: 6px;
  background: rgba(140,160,220,.05);
  width: fit-content;
}
.lu-arc__ver-tag--current {
  color: #cdddff;
  border-color: rgba(79,125,245,.45);
  background: linear-gradient(180deg, rgba(79,125,245,.18), rgba(79,125,245,.06));
  box-shadow: 0 0 0 3px rgba(79,125,245,.10), 0 0 14px rgba(79,125,245,.20);
}
.lu-arc__ver-date {
  font-family: ui-monospace, monospace;
  font-size: 10.5px; color: var(--arc-mute-2);
  letter-spacing: .04em;
}

.lu-arc__name { font-weight: 500; line-height: 1.4; }
.lu-arc__name-meta {
  font-family: ui-monospace, monospace; font-size: 10.5px;
  color: var(--arc-mute-2); letter-spacing: .04em;
}

.lu-arc__list {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 7px;
}
.lu-arc__list li {
  display: flex; align-items: flex-start; gap: 9px;
  font-size: 13px; color: var(--arc-fg); line-height: 1.45;
}
.lu-arc__bullet {
  width: 5px; height: 5px; border-radius: 50%;
  margin-top: 7px; flex-shrink: 0;
}
.lu-arc__bullet--blue  { background: var(--arc-acc);   box-shadow: 0 0 8px rgba(79,125,245,.5); }
.lu-arc__bullet--amber { background: var(--arc-amber); box-shadow: 0 0 8px rgba(245,179,79,.5); }

.lu-arc__none {
  font-family: ui-monospace, monospace;
  font-size: 12px; color: var(--arc-mute-2);
}

/* Support badge */
.lu-arc__support {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 11px;
  border-radius: 999px;
  font-size: 12px; font-weight: 500;
  width: fit-content;
  border: 1px solid;
}
.lu-arc__support-dot {
  width: 6px; height: 6px; border-radius: 50%;
}
.lu-arc__support--full {
  color: #b9f3d1;
  background: rgba(79,220,138,.10);
  border-color: rgba(79,220,138,.28);
}
.lu-arc__support--full .lu-arc__support-dot {
  background: var(--arc-green);
  box-shadow: 0 0 8px rgba(79,220,138,.7);
  animation: lu-arc-pulse 2.4s ease-out infinite;
}
.lu-arc__support--legacy {
  color: #d3c7b3;
  background: rgba(245,179,79,.08);
  border-color: rgba(245,179,79,.25);
}
.lu-arc__support--legacy .lu-arc__support-dot { background: var(--arc-amber); }

/* Actions */
.lu-arc__cell--act {
  flex-direction: column; gap: 6px;
}
.lu-arc__act {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 11px;
  font-size: 12.5px; font-weight: 500;
  color: var(--arc-mute);
  border: 1px solid var(--arc-line);
  border-radius: 8px;
  text-decoration: none;
  background: rgba(140,160,220,.03);
  transition: all .2s;
  width: 100%;
  justify-content: flex-start;
  position: relative;
  overflow: hidden;
}
.lu-arc__act svg { width: 13px; height: 13px; }
.lu-arc__act:hover {
  color: var(--arc-fg);
  border-color: var(--arc-line-strong);
  background: rgba(140,160,220,.07);
  transform: translateY(-1px);
}
.lu-arc__act--primary {
  color: #fff;
  background: linear-gradient(180deg, rgba(79,125,245,.85), rgba(79,125,245,.65));
  border-color: rgba(79,125,245,.6);
  box-shadow: 0 6px 18px rgba(79,125,245,.30), inset 0 1px 0 rgba(255,255,255,.18);
}
.lu-arc__act--primary:hover {
  background: linear-gradient(180deg, rgba(122,162,255,.95), rgba(79,125,245,.8));
  box-shadow: 0 10px 26px rgba(79,125,245,.40), inset 0 1px 0 rgba(255,255,255,.25);
}

/* Empty state */
.lu-arc__empty {
  padding: 48px 24px; text-align: center;
  color: var(--arc-mute);
  font-size: 14px;
  display: flex; flex-direction: column; gap: 10px; align-items: center;
}
.lu-arc__empty-icon {
  font-size: 32px; color: var(--arc-mute-2);
  font-family: ui-monospace, monospace;
}

/* Footer */
.lu-arc__foot {
  margin-top: 22px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: var(--arc-mute-2);
  padding: 0 6px;
  flex-wrap: wrap; gap: 10px;
}
.lu-arc__foot-mono {
  font-family: ui-monospace, monospace;
}
.lu-arc__foot-mono b { color: var(--arc-fg); font-weight: 500; }

/* ---------- Reveal anim ---------- */
[data-lu-a-reveal] {
  opacity: 0; transform: translateY(20px);
  transition: opacity .8s ease, transform .8s cubic-bezier(.2,.8,.2,1);
}
[data-lu-a-reveal].is-in { opacity: 1; transform: none; }

/* ---------- Responsive: card-style table ---------- */
@media (max-width: 1024px) {
  .lu-arc__thead { display: none; }
  .lu-arc__row {
    grid-template-columns: 1fr;
    padding: 18px;
    gap: 14px;
    border-bottom: 1px solid var(--arc-line);
    border-radius: 0;
  }
  .lu-arc__row::before { display: none; }
  .lu-arc__cell {
    padding: 0;
    border-top: 1px dashed var(--arc-line);
    padding-top: 12px;
  }
  .lu-arc__cell:first-child {
    border-top: 0; padding-top: 0;
    flex-direction: row; align-items: center; justify-content: space-between;
  }
  .lu-arc__cell::before {
    content: attr(data-label);
    font-family: ui-monospace, monospace;
    font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase;
    color: var(--arc-mute-2);
    margin-bottom: 4px;
  }
  .lu-arc__cell:first-child::before { display: none; }
  .lu-arc__cell--act { flex-direction: row; flex-wrap: wrap; }
  .lu-arc__act { width: auto; flex: 1 1 auto; }
}

@media (max-width: 600px) {
  .lu-arc__timeline { padding: 20px 18px 32px; }
  .lu-arc__tl-tick b { font-size: 9.5px; }
}