/* ============================================================
   LinkUp · Current Release section
   Inherits global tokens from :root
   ============================================================ */

.lu-rel {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(60px, 9vw, 120px) clamp(20px, 4vw, 56px);
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: "Inter", "Helvetica Neue", system-ui, sans-serif;
}

/* ----- Ambient ----- */
.lu-rel__bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.lu-rel__grid {
  position: relative; inset: 0;
  background-image:
    linear-gradient(rgba(140,160,220,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,160,220,0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, #000 30%, transparent 90%);
}
.lu-rel__orb {
  position: absolute; border-radius: 50%; filter: blur(90px);
  animation: lu-rel-float 22s ease-in-out infinite;
}
.lu-rel__orb--a {
  width: 480px; height: 480px; top: -120px; right: -120px;
  background: radial-gradient(circle, var(--accent-glow), transparent 70%);
}
.lu-rel__orb--b {
  width: 420px; height: 420px; bottom: -160px; left: -100px;
  background: radial-gradient(circle, rgba(34,211,167,0.22), transparent 70%);
  animation-delay: -8s;
}
@keyframes lu-rel-float {
  0%,100% { transform: translate(0,0) scale(1); }
  50%     { transform: translate(-30px, 40px) scale(1.06); }
}

.lu-rel__container { max-width: 1280px; margin: 0 auto; }

/* ============================================================
   HEADER
   ============================================================ */
.lu-rel__header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: end;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}

.lu-rel__label {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: rgba(255,255,255,0.02);
  font-size: 12px; letter-spacing: .04em;
  color: var(--text-secondary);
  margin-bottom: 22px;
}
.lu-rel__label-pulse {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 0 rgba(34,211,167,.55);
  animation: lu-rel-pulse 2s infinite;
}
@keyframes lu-rel-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(34,211,167,.55); }
  70%  { box-shadow: 0 0 0 9px rgba(34,211,167,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,211,167,0); }
}
.lu-rel__label-divider { color: var(--text-dim); }
.lu-rel__label-mono {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  color: var(--text-dim); font-size: 11px;
}

.lu-rel__title {
  margin: 0 0 22px;
  display: flex; align-items: baseline; flex-wrap: wrap; gap: 16px 20px;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
}
.lu-rel__title-main {
  font-size: clamp(48px, 7vw, 96px);
  background: linear-gradient(120deg, var(--text-primary) 30%, var(--accent) 60%, var(--accent-2) 95%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lu-rel__title-ver {
  display: inline-flex; flex-direction: column; gap: 4px;
  padding-left: 18px;
  border-left: 1px solid var(--border-strong);
}
.lu-rel__ver-num {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 14px; color: var(--accent); letter-spacing: 0;
}
.lu-rel__ver-name {
  font-size: 13px; color: var(--text-secondary); font-weight: 400;
  font-style: italic;
}

.lu-rel__meta {
  display: inline-flex; align-items: center; flex-wrap: wrap; gap: 18px;
  padding: 12px 18px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.lu-rel__meta-item { display: inline-flex; flex-direction: column; gap: 3px; }
.lu-rel__meta-k {
  font-size: 10px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--text-dim);
}
.lu-rel__meta-v { font-size: 13px; color: var(--text-primary); font-weight: 500; }
.lu-rel__meta-divider {
  width: 1px; height: 28px; background: var(--border-strong);
}

/* Status ring */
.lu-rel__status {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--bg-elevated), var(--bg-surface));
  box-shadow: var(--shadow-lg);
}
.lu-rel__status-ring {
  position: relative; width: 48px; height: 48px;
  color: var(--accent-2);
}
.lu-rel__status-ring svg { width: 100%; height: 100%; }
.lu-rel__status-arc { animation: lu-rel-arc 3s ease-in-out infinite; }
@keyframes lu-rel-arc {
  0%,100% { stroke-dashoffset: 30; }
  50%     { stroke-dashoffset: 0;  }
}
.lu-rel__status-dot {
  position: absolute; inset: 0; margin: auto;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 12px var(--accent-2);
}
.lu-rel__status-text { display: flex; flex-direction: column; gap: 2px; }
.lu-rel__status-tag {
  font-size: 14px; font-weight: 600; color: var(--text-primary);
  letter-spacing: .02em;
}
.lu-rel__status-sub {
  font-size: 11px; color: var(--text-secondary);
  text-transform: uppercase; letter-spacing: .12em;
}

/* ============================================================
   TABS
   ============================================================ */
.lu-rel__tabs {
  position: relative;
  display: inline-flex; gap: 4px;
  padding: 6px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.lu-rel__tab {
  position: relative; z-index: 1;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 18px;
  border: 0; background: transparent; cursor: pointer;
  border-radius: calc(var(--radius-md) - 4px);
  color: var(--text-secondary);
  font: 500 13px/1 "Inter", sans-serif;
  letter-spacing: .02em;
  transition: color .25s;
}
.lu-rel__tab:hover { color: var(--text-primary); }
.lu-rel__tab.is-active { color: var(--text-primary); }
.lu-rel__tab-num {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px; color: var(--accent);
}
.lu-rel__tab-count {
  padding: 2px 7px; border-radius: 999px;
  background: rgba(140,160,220,0.08);
  font-size: 10px; color: var(--text-dim);
  font-family: "JetBrains Mono", ui-monospace, monospace;
}
.lu-rel__tab.is-active .lu-rel__tab-count {
  background: rgba(79,125,245,.15); color: var(--accent);
}
.lu-rel__tab-indicator {
  position: absolute;
  top: 6px; left: 6px;
  height: calc(100% - 12px);
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: calc(var(--radius-md) - 4px);
  box-shadow: 0 4px 14px rgba(0,0,0,0.4);
  transition: transform .4s cubic-bezier(.2,.8,.2,1), width .4s cubic-bezier(.2,.8,.2,1);
  z-index: 0;
  width: 0;
}

/* ============================================================
   GRID & CARDS
   ============================================================ */
.lu-rel__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 36px;
}

.lu-rel__card {
  position: relative; overflow: hidden;
  display: flex; flex-direction: column;
  padding: 24px 24px 22px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--bg-elevated), var(--bg-surface));
  box-shadow: var(--shadow-lg);
  transform-style: preserve-3d;
  transition: transform .4s cubic-bezier(.2,.8,.2,1), border-color .3s;
}
.lu-rel__card.is-focused {
  border-color: rgba(79,125,245,.5);
  box-shadow: var(--shadow-glow), var(--shadow-lg);
}
.lu-rel__card.is-dim { opacity: .55; }

.lu-rel__card-head {
  display: flex; align-items: center; gap: 12px;
  padding-bottom: 16px; margin-bottom: 16px;
  border-bottom: 1px dashed var(--border-strong);
}
.lu-rel__card-icon {
  display: inline-grid; place-items: center;
  width: 36px; height: 36px;
  border-radius: 10px;
  background: rgba(79,125,245,.12);
  color: var(--accent);
  border: 1px solid rgba(79,125,245,.25);
}
.lu-rel__card-icon svg { width: 18px; height: 18px; }
.lu-rel__card-icon--warn {
  background: rgba(255,176,32,.12);
  color: #ffb020;
  border-color: rgba(255,176,32,.3);
}
.lu-rel__card-icon--ok {
  background: rgba(34,211,167,.12);
  color: var(--accent-2);
  border-color: rgba(34,211,167,.3);
}
.lu-rel__card-title {
  flex: 1; margin: 0;
  font-size: 16px; font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}
.lu-rel__card-tag {
  padding: 4px 10px; border-radius: 999px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px; letter-spacing: .1em; text-transform: uppercase;
  border: 1px solid;
}
.lu-rel__card-tag--blue  { color: var(--accent);   background: rgba(79,125,245,.1);  border-color: rgba(79,125,245,.3); }
.lu-rel__card-tag--amber { color: #ffb020;        background: rgba(255,176,32,.1);  border-color: rgba(255,176,32,.3); }
.lu-rel__card-tag--green { color: var(--accent-2); background: rgba(34,211,167,.1);  border-color: rgba(34,211,167,.3); }

/* Lists */
.lu-rel__list {
  list-style: none; padding: 0; margin: 0 0 18px;
  display: flex; flex-direction: column; gap: 12px;
}
.lu-rel__list li {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 14px; line-height: 1.45;
  color: var(--text-primary);
  padding: 8px 10px 8px 4px;
  border-radius: 8px;
  transition: background .25s, transform .25s;
}
.lu-rel__list li:hover {
  background: rgba(255,255,255,0.02);
  transform: translateX(4px);
}
.lu-rel__list-sub {
  display: block; margin-top: 2px;
  font-size: 11px; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: .12em;
}

.lu-rel__bullet {
  position: relative; flex: none;
  width: 8px; height: 8px; margin-top: 7px;
  border-radius: 50%;
}
.lu-rel__bullet::after {
  content: ""; position: absolute; inset: -4px; border-radius: 50%;
  border: 1px solid currentColor; opacity: .35;
}
.lu-rel__bullet--blue  { background: var(--accent);  color: var(--accent); }
.lu-rel__bullet--amber { background: #ffb020;       color: #ffb020; }

/* Support list */
.lu-rel__support {
  list-style: none; padding: 0; margin: 0 0 18px;
  display: flex; flex-direction: column; gap: 14px;
}
.lu-rel__support li {
  position: relative;
  display: grid; grid-template-columns: 28px 1fr; gap: 12px;
  padding: 10px 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255,255,255,0.015);
}
.lu-rel__check {
  display: inline-grid; place-items: center;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: rgba(34,211,167,.15);
  color: var(--accent-2);
  border: 1px solid rgba(34,211,167,.35);
}
.lu-rel__check svg { width: 12px; height: 12px; }
.lu-rel__support-bar {
  grid-column: 1 / -1;
  height: 3px; border-radius: 999px;
  background: var(--bg-elevated-2);
  overflow: hidden;
  position: relative;
}
.lu-rel__support-bar::after {
  content: ""; position: absolute; inset: 0;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: inherit;
  transition: width 1.4s cubic-bezier(.2,.8,.2,1);
}
.lu-rel__card.is-in .lu-rel__support-bar::after { width: var(--p, 100%); }

.lu-rel__card-foot {
  margin-top: auto;
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase; letter-spacing: .14em;
}
.lu-rel__card-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--accent); text-decoration: none;
  text-transform: none; letter-spacing: 0; font-size: 12px;
  transition: gap .25s;
}
.lu-rel__card-link svg { width: 14px; height: 14px; transition: transform .25s; }
.lu-rel__card-link:hover { gap: 10px; }
.lu-rel__card-link:hover svg { transform: translateX(3px); }

.lu-rel__card-glow {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(260px circle at var(--mx,50%) var(--my,50%), rgba(79,125,245,.18), transparent 60%);
  opacity: 0; transition: opacity .3s;
}
.lu-rel__card:hover .lu-rel__card-glow { opacity: 1; }

/* ============================================================
   CTA
   ============================================================ */
.lu-rel__cta {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 20px;
  padding: 22px 26px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--bg-elevated), var(--bg-surface));
  box-shadow: var(--shadow-lg);
}
.lu-rel__cta-info {
  display: flex; flex-direction: column; gap: 6px;
}
.lu-rel__cta-os {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--text-primary); font-weight: 500;
}
.lu-rel__cta-os svg { width: 14px; height: 14px; color: var(--accent); }
.lu-rel__cta-size {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px; color: var(--text-dim);
}

.lu-rel__cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.lu-rel__btn {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; gap: 14px;
  padding: 14px 22px;
  border-radius: var(--radius-md);
  font: 500 14px/1 "Inter", sans-serif;
  text-decoration: none; cursor: pointer;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.lu-rel__btn-label { display: inline-flex; align-items: center; gap: 10px; }
.lu-rel__btn-label svg { width: 16px; height: 16px; }
.lu-rel__btn--primary {
  color: var(--bg-deep);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow-glow);
}
.lu-rel__btn--primary .lu-rel__btn-meta {
  padding-left: 14px; border-left: 1px solid rgba(10,14,26,.25);
  font-size: 11px; letter-spacing: .08em; text-transform: uppercase; opacity: .85;
}
.lu-rel__btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(79,125,245,.5), 0 16px 40px rgba(79,125,245,.35);
}
.lu-rel__btn-glow {
  position: absolute; inset: -2px; border-radius: inherit; pointer-events: none;
  background: radial-gradient(120px circle at var(--mx,50%) var(--my,50%), rgba(255,255,255,.35), transparent 60%);
  opacity: 0; transition: opacity .3s;
}
.lu-rel__btn--primary:hover .lu-rel__btn-glow { opacity: 1; }
.lu-rel__btn--ghost {
  color: var(--text-primary);
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-strong);
}
.lu-rel__btn--ghost:hover {
  border-color: var(--accent); color: var(--accent);
  transform: translateY(-2px);
}
.lu-rel__btn--ghost svg { transition: transform .3s; }
.lu-rel__btn--ghost:hover svg { transform: translateX(4px); }

/* ============================================================
   REVEAL
   ============================================================ */
[data-lu-r-reveal] {
  opacity: 0; transform: translateY(24px);
  transition: opacity .8s ease, transform .8s cubic-bezier(.2,.8,.2,1);
}
[data-lu-r-reveal].is-in { opacity: 1; transform: translateY(0); }
.lu-rel__grid > [data-lu-r-reveal]:nth-child(1) { transition-delay: .05s; }
.lu-rel__grid > [data-lu-r-reveal]:nth-child(2) { transition-delay: .15s; }
.lu-rel__grid > [data-lu-r-reveal]:nth-child(3) { transition-delay: .25s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .lu-rel__grid { grid-template-columns: 1fr; }
  .lu-rel__header { grid-template-columns: 1fr; }
  .lu-rel__head-right { justify-self: start; }
}
@media (max-width: 640px) {
  .lu-rel__title { gap: 10px 14px; }
  .lu-rel__title-ver { padding-left: 0; border-left: 0; }
  .lu-rel__meta { gap: 12px; padding: 12px; }
  .lu-rel__meta-divider { display: none; }
  .lu-rel__cta { flex-direction: column; align-items: stretch; }
  .lu-rel__btn--primary .lu-rel__btn-meta { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}