/* LinkUp · System Updates — pure CSS */
.lu-upd {
  --upd-bg: #07080c;
  --upd-bg-2: #0c0e14;
  --upd-surface: rgba(255,255,255,.03);
  --upd-surface-2: rgba(255,255,255,.05);
  --upd-border: rgba(255,255,255,.08);
  --upd-border-2: rgba(255,255,255,.14);
  --upd-text: #e7ebf2;
  --upd-mute: #8b94a6;
  --upd-dim: #5a6478;
  --upd-acc: #7c5cff;
  --upd-acc-2: #4ec9ff;
  --upd-ok: #3ddc97;
  --upd-warn: #ffb547;
  --upd-crit: #ff6b6b;
  --upd-exp: #ff7ad9;
  position: relative;
  isolation: isolate;
  background: var(--upd-bg);
  color: var(--upd-text);
  padding: 96px 0 120px;
  overflow: hidden;
  font-family: ui-sans-serif, system-ui, -apple-system, "Inter", sans-serif;
}
/* ---------- Ambient ---------- */
.lu-upd__bg { position:absolute; inset:0; z-index:0; pointer-events:none; overflow:hidden; }
.lu-upd__grid {
  position:absolute; inset:-1px;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 40%, transparent 80%);
}
.lu-upd__orb {
  position:absolute; width:520px; height:520px; border-radius:50%;
  filter: blur(100px); opacity:.45; transition: translate .6s ease;
}
.lu-upd__orb--a { top:-180px; left:-160px; background: radial-gradient(circle, var(--upd-acc), transparent 60%); }
.lu-upd__orb--b { bottom:-200px; right:-180px; background: radial-gradient(circle, var(--upd-acc-2), transparent 60%); }
.lu-upd__orb--c { top:40%; left:55%; width:380px; height:380px; background: radial-gradient(circle, var(--upd-exp), transparent 60%); opacity:.25; }
.lu-upd__scan {
  position:absolute; inset:0;
  background: linear-gradient(transparent 0, transparent 50%, rgba(255,255,255,.012) 50%, transparent 51%);
  background-size: 100% 4px;
  mix-blend-mode: overlay; pointer-events:none;
}
.lu-upd__container { position:relative; z-index:1; max-width:1240px; margin:0 auto; padding:0 24px; }
/* ---------- Header ---------- */
.lu-upd__header { text-align:center; margin-bottom:48px; }
.lu-upd__label {
  display:inline-flex; align-items:center; gap:10px;
  padding:8px 16px; border:1px solid var(--upd-border-2);
  border-radius:99px; background: var(--upd-surface);
  font-size:11px; letter-spacing:.18em; text-transform:uppercase;
  color: var(--upd-mute); font-family: ui-monospace, "JetBrains Mono", monospace;
  backdrop-filter: blur(10px);
}
.lu-upd__label-pulse {
  width:7px; height:7px; border-radius:50%; background: var(--upd-ok);
  box-shadow: 0 0 0 0 rgba(61,220,151,.6);
  animation: lu-upd-pulse 2s infinite;
}
@keyframes lu-upd-pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(61,220,151,.6); }
  50%     { box-shadow: 0 0 0 7px rgba(61,220,151,0); }
}
.lu-upd__label-divider { opacity:.4; }
.lu-upd__label-mono { color: var(--upd-text); text-transform:none; letter-spacing:.05em; }
.lu-upd__title {
  margin: 22px 0 14px;
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 700; letter-spacing:-.03em; line-height:1.02;
}
.lu-upd__title-accent {
  background: linear-gradient(120deg, var(--upd-acc), var(--upd-acc-2) 60%, var(--upd-exp));
  -webkit-background-clip:text; background-clip:text; color: transparent;
}
.lu-upd__sub { max-width:680px; margin:0 auto; color: var(--upd-mute); line-height:1.6; font-size:15px; }
/* ---------- Status ---------- */
.lu-upd__status {
  margin: 36px auto 24px; max-width: 1080px;
  display:grid; grid-template-columns: repeat(4, 1fr); gap:1px;
  background: var(--upd-border); border:1px solid var(--upd-border);
  border-radius:14px; overflow:hidden;
}
.lu-upd__stat {
  background: var(--upd-bg-2); padding: 14px 16px;
  display:flex; flex-direction:column; gap:6px; text-align:left;
}
.lu-upd__stat-k { font-size:10px; letter-spacing:.18em; text-transform:uppercase; color: var(--upd-dim); }
.lu-upd__stat-v { font-size:13px; color: var(--upd-text); display:flex; align-items:center; gap:8px; }
.lu-upd__stat-v--mono { font-family: ui-monospace, monospace; font-size:12px; }
.lu-upd__stat-v--ok { color: var(--upd-ok); }
.lu-upd__stat-dot { width:6px; height:6px; border-radius:50%; background: var(--upd-ok); box-shadow:0 0 8px var(--upd-ok); animation: lu-upd-pulse 1.6s infinite; }
/* ---------- Metrics ---------- */
.lu-upd__metrics {
  display:grid; grid-template-columns:repeat(4,1fr); gap:12px; max-width:1080px; margin:0 auto;
}
.lu-upd__metric {
  position:relative; padding:18px 18px 16px; border:1px solid var(--upd-border);
  border-radius:14px; background: linear-gradient(180deg, var(--upd-surface), transparent);
  text-align:left; transition: border-color .25s, transform .25s;
}
.lu-upd__metric:hover { border-color: var(--upd-border-2); transform: translateY(-2px); }
.lu-upd__metric-k { display:block; font-size:10px; letter-spacing:.18em; text-transform:uppercase; color: var(--upd-dim); }
.lu-upd__metric-v { display:block; margin:8px 0 12px; font-size:32px; font-weight:700; letter-spacing:-.02em; font-family: ui-monospace, monospace; }
.lu-upd__metric-bar { display:block; height:4px; background: var(--upd-border); border-radius:99px; overflow:hidden; }
.lu-upd__metric-bar i { display:block; height:100%; width: var(--p); background: linear-gradient(90deg, var(--upd-acc), var(--upd-acc-2)); border-radius:99px; animation: lu-upd-fill 1.4s ease-out; }
@keyframes lu-upd-fill { from { width:0; } }
.lu-upd__metric[data-cat="active"] .lu-upd__metric-bar i { background: linear-gradient(90deg, var(--upd-acc), var(--upd-acc-2)); }
.lu-upd__metric[data-cat="upcoming"] .lu-upd__metric-bar i { background: linear-gradient(90deg, var(--upd-warn), #ffd28a); }
.lu-upd__metric[data-cat="experimental"] .lu-upd__metric-bar i { background: linear-gradient(90deg, var(--upd-exp), #ffb1ee); }
.lu-upd__metric[data-cat="completed"] .lu-upd__metric-bar i { background: linear-gradient(90deg, var(--upd-ok), #8af0c4); }
/* ---------- Tabs ---------- */
.lu-upd__tabs {
  display:flex; flex-wrap:wrap; gap:8px; justify-content:center;
  margin: 40px auto 32px; padding: 8px;
  background: var(--upd-surface); border:1px solid var(--upd-border);
  border-radius:99px; max-width:max-content;
}
.lu-upd__tab {
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 16px; border-radius:99px; border:0;
  background:transparent; color: var(--upd-mute); cursor:pointer;
  font-size:12px; letter-spacing:.04em; transition: all .25s;
}
.lu-upd__tab:hover { color: var(--upd-text); background: var(--upd-surface-2); }
.lu-upd__tab.is-on { background: var(--upd-text); color: var(--upd-bg); }
.lu-upd__tab-dot { width:6px; height:6px; border-radius:50%; background: currentColor; opacity:.6; }
.lu-upd__tab-dot--active { background: var(--upd-acc); opacity:1; }
.lu-upd__tab-dot--upcoming { background: var(--upd-warn); opacity:1; }
.lu-upd__tab-dot--exp { background: var(--upd-exp); opacity:1; }
.lu-upd__tab-dot--done { background: var(--upd-ok); opacity:1; }
/* ---------- Overview ---------- */
.lu-upd__overview { display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-bottom:64px; }
.lu-upd__ov-card {
  position:relative; padding:28px; border:1px solid var(--upd-border);
  border-radius:18px; background: linear-gradient(180deg, var(--upd-surface), transparent);
  transition: border-color .3s, transform .3s;
}
.lu-upd__ov-card:hover { border-color: var(--upd-border-2); transform: translateY(-3px); }
.lu-upd__ov-num { font-family: ui-monospace, monospace; font-size:11px; color: var(--upd-dim); letter-spacing:.2em; }
.lu-upd__ov-card h3 { font-size:22px; margin:10px 0 10px; letter-spacing:-.01em; }
.lu-upd__ov-card p { color: var(--upd-mute); font-size:14px; line-height:1.6; margin:0 0 16px; }
.lu-upd__chips { list-style:none; padding:0; margin:0; display:flex; flex-wrap:wrap; gap:6px; }
.lu-upd__chips li {
  font-size:11px; padding:5px 10px; border:1px solid var(--upd-border);
  border-radius:99px; color: var(--upd-text); background: var(--upd-surface-2);
  font-family: ui-monospace, monospace;
}
/* ---------- Timeline ---------- */
.lu-upd__timeline { position:relative; padding-left:0; }
.lu-upd__rail { display:none; }
.lu-upd__group { margin-bottom:64px; transition: opacity .3s; }
.lu-upd__group.is-hidden { display:none; }
.lu-upd__group-head { margin-bottom:24px; }
.lu-upd__group-tag {
  display:inline-block; font-size:11px; padding:6px 12px;
  border:1px solid var(--upd-border-2); border-radius:99px;
  font-family: ui-monospace, monospace; letter-spacing:.1em;
  background: var(--upd-surface);
}
.lu-upd__group-tag--active { color: var(--upd-acc); border-color: rgba(124,92,255,.4); }
.lu-upd__group-tag--upcoming { color: var(--upd-warn); border-color: rgba(255,181,71,.4); }
.lu-upd__group-tag--exp { color: var(--upd-exp); border-color: rgba(255,122,217,.4); }
.lu-upd__group-tag--done { color: var(--upd-ok); border-color: rgba(61,220,151,.4); }
.lu-upd__group-head h2 { margin:12px 0 0; font-size:26px; letter-spacing:-.02em; }
/* Active nodes */
.lu-upd__node {
  position:relative; display:grid; grid-template-columns:40px 1fr; gap:20px;
  padding-bottom:20px;
}
.lu-upd__node-mark {
  position:relative; display:flex; justify-content:center; padding-top:22px;
}
.lu-upd__node-mark::before {
  content:""; position:absolute; top:0; bottom:-20px; left:50%;
  width:1px; background: linear-gradient(180deg, var(--upd-border-2), transparent);
  transform:translateX(-50%);
}
.lu-upd__node-mark span {
  position:relative; width:14px; height:14px; border-radius:50%;
  background: var(--upd-bg); border:2px solid var(--upd-acc);
  box-shadow: 0 0 14px rgba(124,92,255,.6);
}
.lu-upd__node-mark span::after {
  content:""; position:absolute; inset:2px; border-radius:50%; background: var(--upd-acc);
  animation: lu-upd-pulse2 2s infinite;
}
@keyframes lu-upd-pulse2 { 0%,100% { opacity:1; transform:scale(1); } 50% { opacity:.5; transform:scale(.7); } }
.lu-upd__node-body {
  padding:20px 22px; border:1px solid var(--upd-border);
  border-radius:16px; background: linear-gradient(180deg, var(--upd-surface), transparent);
  transition: border-color .25s, transform .25s;
}
.lu-upd__node-body:hover { border-color: var(--upd-border-2); transform: translateX(4px); }
.lu-upd__node-head { display:flex; align-items:center; gap:10px; margin-bottom:10px; flex-wrap:wrap; }
.lu-upd__node-id { font-family: ui-monospace, monospace; font-size:11px; color: var(--upd-dim); letter-spacing:.15em; text-transform:uppercase; }
.lu-upd__node-state {
  font-size:10px; padding:3px 8px; border-radius:99px;
  letter-spacing:.1em; text-transform:uppercase;
  background: rgba(124,92,255,.12); color: var(--upd-acc); border:1px solid rgba(124,92,255,.3);
}
.lu-upd__node-body h3 { margin:0 0 8px; font-size:19px; letter-spacing:-.01em; }
.lu-upd__node-body > p { color: var(--upd-mute); font-size:14px; line-height:1.55; margin:0 0 14px; }
.lu-upd__list { list-style:none; padding:0; margin:0 0 16px; display:grid; gap:6px; }
.lu-upd__list li {
  position:relative; padding-left:18px; font-size:13px; color: var(--upd-text);
}
.lu-upd__list li::before {
  content:""; position:absolute; left:0; top:7px; width:8px; height:1px;
  background: var(--upd-acc);
}
.lu-upd__progress { display:flex; align-items:center; gap:10px; font-family: ui-monospace, monospace; font-size:11px; color: var(--upd-mute); }
.lu-upd__progress i { flex:1; display:block; height:3px; background: var(--upd-border); border-radius:99px; overflow:hidden; position:relative; }
.lu-upd__progress i::after { content:""; position:absolute; inset:0; width: var(--p); background: linear-gradient(90deg, var(--upd-acc), var(--upd-acc-2)); border-radius:99px; animation: lu-upd-fill 1.4s ease-out; }
.lu-upd__progress b { color: var(--upd-text); font-weight:500; }
/* Upcoming queue */
.lu-upd__queue { display:grid; gap:10px; }
.lu-upd__queue-item {
  display:grid; grid-template-columns:48px 1fr auto; align-items:center; gap:18px;
  padding:18px 22px; border:1px solid var(--upd-border); border-radius:14px;
  background: var(--upd-surface); transition: all .25s; cursor:pointer;
}
.lu-upd__queue-item:hover { border-color: rgba(255,181,71,.4); background: var(--upd-surface-2); transform: translateX(4px); }
.lu-upd__queue-n {
  font-family: ui-monospace, monospace; font-size:18px; font-weight:700;
  color: var(--upd-warn); letter-spacing:.05em;
}
.lu-upd__queue-item h4 { margin:0 0 4px; font-size:15px; letter-spacing:-.01em; }
.lu-upd__queue-item p { margin:0; font-size:13px; color: var(--upd-mute); line-height:1.5; }
.lu-upd__queue-eta {
  font-family: ui-monospace, monospace; font-size:11px;
  padding:5px 10px; border:1px solid var(--upd-border); border-radius:99px;
  color: var(--upd-warn); background: rgba(255,181,71,.06);
}
/* Lab / prototypes */
.lu-upd__lab { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; }
.lu-upd__proto {
  position:relative; padding:22px; border:1px solid var(--upd-border);
  border-radius:16px; background: linear-gradient(180deg, var(--upd-surface), transparent);
  overflow:hidden; transition: border-color .25s, transform .35s;
  transform-style: preserve-3d;
}
.lu-upd__proto::before {
  content:""; position:absolute; inset:0; pointer-events:none; opacity:0; transition: opacity .3s;
  background: radial-gradient(280px circle at var(--mx,50%) var(--my,50%), rgba(255,122,217,.12), transparent 60%);
}
.lu-upd__proto:hover::before { opacity:1; }
.lu-upd__proto:hover { border-color: rgba(255,122,217,.4); }
.lu-upd__proto header { display:flex; align-items:flex-start; gap:14px; margin-bottom:12px; }
.lu-upd__proto-greek {
  width:42px; height:42px; display:grid; place-items:center;
  border:1px solid rgba(255,122,217,.4); border-radius:12px;
  font-size:22px; color: var(--upd-exp);
  background: rgba(255,122,217,.06);
}
.lu-upd__proto-tag { font-family: ui-monospace, monospace; font-size:10px; color: var(--upd-dim); letter-spacing:.15em; text-transform:uppercase; }
.lu-upd__proto h4 { margin:4px 0 0; font-size:16px; letter-spacing:-.01em; }
.lu-upd__proto p { margin:0 0 18px; font-size:13px; color: var(--upd-mute); line-height:1.55; }
.lu-upd__proto footer { display:flex; align-items:flex-end; gap:10px; font-size:10px; color: var(--upd-dim); letter-spacing:.12em; text-transform:uppercase; font-family: ui-monospace, monospace; }
.lu-upd__bars { flex:1; display:flex; align-items:flex-end; gap:3px; height:32px; }
.lu-upd__bars i { flex:1; height: var(--h); background: linear-gradient(180deg, var(--upd-exp), rgba(255,122,217,.2)); border-radius:2px; animation: lu-upd-bar 1.6s ease-in-out infinite; }
.lu-upd__bars i:nth-child(2) { animation-delay:.15s; }
.lu-upd__bars i:nth-child(3) { animation-delay:.3s; }
.lu-upd__bars i:nth-child(4) { animation-delay:.45s; }
.lu-upd__bars i:nth-child(5) { animation-delay:.6s; }
@keyframes lu-upd-bar { 50% { transform: scaleY(.6); } }
.lu-upd__proto footer b { color: var(--upd-exp); font-weight:500; }
/* Done list */
.lu-upd__done { list-style:none; padding:0; margin:0; display:grid; gap:10px; }
.lu-upd__done li {
  display:grid; grid-template-columns:40px 1fr auto; align-items:center; gap:16px;
  padding:16px 20px; border:1px solid var(--upd-border); border-radius:14px;
  background: var(--upd-surface); transition: all .25s;
}
.lu-upd__done li:hover { border-color: rgba(61,220,151,.35); background: var(--upd-surface-2); }
.lu-upd__done-ic {
  width:32px; height:32px; display:grid; place-items:center;
  border-radius:50%; background: rgba(61,220,151,.12); color: var(--upd-ok);
  border:1px solid rgba(61,220,151,.3); font-weight:700;
}
.lu-upd__done li h4 { margin:0 0 4px; font-size:14px; letter-spacing:-.01em; }
.lu-upd__done li p { margin:0; font-size:12.5px; color: var(--upd-mute); line-height:1.5; }
.lu-upd__done-ts {
  font-family: ui-monospace, monospace; font-size:10px; letter-spacing:.15em;
  text-transform:uppercase; padding:4px 9px; border-radius:99px;
  color: var(--upd-ok); border:1px solid rgba(61,220,151,.3); background: rgba(61,220,151,.06);
}
/* ---------- Philosophy ---------- */
.lu-upd__philo {
  margin: 32px 0 56px;
  padding: 40px; border:1px solid var(--upd-border); border-radius:24px;
  background: linear-gradient(180deg, var(--upd-surface-2), transparent);
  position:relative; overflow:hidden;
}
.lu-upd__philo::before {
  content:""; position:absolute; inset:0; pointer-events:none;
  background: radial-gradient(circle at 80% 20%, rgba(124,92,255,.1), transparent 50%),
              radial-gradient(circle at 20% 80%, rgba(78,201,255,.08), transparent 50%);
}
.lu-upd__philo-head { text-align:center; margin-bottom:32px; position:relative; }
.lu-upd__philo-head h2 { margin:14px 0 10px; font-size:28px; letter-spacing:-.02em; }
.lu-upd__philo-head p { max-width:580px; margin:0 auto; color: var(--upd-mute); font-size:14px; line-height:1.6; }
.lu-upd__philo-grid {
  display:grid; grid-template-columns:repeat(4, 1fr); gap:12px;
  position:relative; margin-bottom:28px;
}
.lu-upd__principle {
  padding:20px; border:1px solid var(--upd-border); border-radius:14px;
  background: var(--upd-bg-2); transition: transform .25s, border-color .25s;
}
.lu-upd__principle:hover { transform: translateY(-3px); border-color: var(--upd-border-2); }
.lu-upd__principle span { font-family: ui-monospace, monospace; font-size:11px; color: var(--upd-dim); letter-spacing:.18em; }
.lu-upd__principle h4 { margin:8px 0 6px; font-size:15px; letter-spacing:-.01em; }
.lu-upd__principle p { margin:0; font-size:12.5px; color: var(--upd-mute); line-height:1.5; }
.lu-upd__states {
  display:flex; flex-wrap:wrap; gap:10px; justify-content:center;
  padding-top: 24px; border-top:1px solid var(--upd-border); position:relative;
}
.lu-upd__state {
  display:inline-flex; align-items:center; gap:8px;
  padding:7px 14px; border-radius:99px; border:1px solid var(--upd-border);
  background: var(--upd-surface); font-size:12px; color: var(--upd-text);
  font-family: ui-monospace, monospace;
}
.lu-upd__state span { width:6px; height:6px; border-radius:50%; }
.lu-upd__state--active span { background: var(--upd-acc); box-shadow:0 0 8px var(--upd-acc); }
.lu-upd__state--upcoming span { background: var(--upd-warn); box-shadow:0 0 8px var(--upd-warn); }
.lu-upd__state--exp span { background: var(--upd-exp); box-shadow:0 0 8px var(--upd-exp); }
.lu-upd__state--done span { background: var(--upd-ok); box-shadow:0 0 8px var(--upd-ok); }
/* ---------- Footer ---------- */
.lu-upd__footer {
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:18px 22px; border:1px solid var(--upd-border); border-radius:14px;
  background: var(--upd-surface); flex-wrap:wrap;
}
.lu-upd__foot-left { display:flex; align-items:center; gap:10px; font-size:12.5px; color: var(--upd-mute); font-family: ui-monospace, monospace; }
.lu-upd__foot-left b { color: var(--upd-text); }
.lu-upd__foot-dot { width:7px; height:7px; border-radius:50%; background: var(--upd-ok); box-shadow:0 0 8px var(--upd-ok); animation: lu-upd-pulse 2s infinite; }
.lu-upd__refresh {
  display:inline-flex; align-items:center; gap:8px;
  padding:9px 16px; border-radius:99px; border:1px solid var(--upd-border-2);
  background: var(--upd-text); color: var(--upd-bg); cursor:pointer;
  font-size:12px; font-weight:600; letter-spacing:.02em; transition: transform .2s;
}
.lu-upd__refresh svg { width:14px; height:14px; transition: transform .6s; }
.lu-upd__refresh:hover { transform: translateY(-1px); }
.lu-upd__refresh.is-spin svg { transform: rotate(360deg); }
/* ---------- Reveal ---------- */
[data-lu-u-reveal] { opacity:0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
[data-lu-u-reveal].is-in { opacity:1; transform: translateY(0); }
/* ---------- Hidden state ---------- */
.lu-upd__node.is-hidden,
.lu-upd__queue-item.is-hidden,
.lu-upd__proto.is-hidden,
.lu-upd__done li.is-hidden { display:none; }
/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .lu-upd__status { grid-template-columns:repeat(2,1fr); }
  .lu-upd__metrics { grid-template-columns:repeat(2,1fr); }
  .lu-upd__overview { grid-template-columns:1fr; }
  .lu-upd__lab { grid-template-columns:1fr; }
  .lu-upd__philo-grid { grid-template-columns:repeat(2,1fr); }
  .lu-upd__philo { padding:28px 22px; }
}
@media (max-width: 560px) {
  .lu-upd { padding:64px 0 80px; }
  .lu-upd__container { padding:0 16px; }
  .lu-upd__status { grid-template-columns:1fr; }
  .lu-upd__metrics { grid-template-columns:1fr 1fr; }
  .lu-upd__tabs { padding:6px; gap:4px; }
  .lu-upd__tab { padding:7px 12px; font-size:11px; }
  .lu-upd__node { grid-template-columns:28px 1fr; gap:12px; }
  .lu-upd__node-body { padding:16px 16px; }
  .lu-upd__queue-item { grid-template-columns:36px 1fr; padding:14px 16px; }
  .lu-upd__queue-eta { display:none; }
  .lu-upd__done li { grid-template-columns:32px 1fr; }
  .lu-upd__done-ts { display:none; }
  .lu-upd__philo-grid { grid-template-columns:1fr; }
  .lu-upd__title { font-size: 38px; }
}