/* LivingBot · shared UX visual layer (companion to ux.js).
   Glass nav scroll state, micro-interaction polish, skeleton states,
   empty-state container. */

/* ─── Glass nav (scroll-triggered backdrop) ──────────────────── */
.lb-glass-nav {
  transition: background .25s var(--ease-out, ease),
              box-shadow .25s var(--ease-out, ease),
              border-color .25s var(--ease-out, ease),
              -webkit-backdrop-filter .25s var(--ease-out, ease),
              backdrop-filter .25s var(--ease-out, ease);
}
.lb-glass-nav.lb-scrolled {
  -webkit-backdrop-filter: blur(14px) saturate(140%);
          backdrop-filter: blur(14px) saturate(140%);
  box-shadow: 0 6px 30px rgba(0,0,0,.18);
}
/* Scoped overrides: dark nav (memes.black) */
body[data-site="black"] .lb-glass-nav.lb-scrolled,
.mb-nav.lb-scrolled {
  background: rgba(10,10,10,.72) !important;
  border-bottom-color: rgba(255,78,163,.18) !important;
}
/* Scoped overrides: pink nav */
body[data-site="pink"] .lb-glass-nav.lb-scrolled {
  background: rgba(253,214,207,.88) !important;
  border-bottom-color: rgba(31,20,16,.16) !important;
}

/* ─── Reveal-on-scroll utility ───────────────────────────────── */
.lb-reveal {
  opacity: 0; transform: translateY(14px);
  transition: opacity .55s var(--ease-out, ease), transform .55s var(--ease-out, ease);
  will-change: opacity, transform;
}
.lb-reveal.in { opacity: 1; transform: none; }
.lb-reveal-delay-1 { transition-delay: .08s; }
.lb-reveal-delay-2 { transition-delay: .16s; }
.lb-reveal-delay-3 { transition-delay: .24s; }
.lb-reveal-delay-4 { transition-delay: .32s; }

/* ─── Hover lift on cards (additive class) ──────────────────── */
.lb-lift {
  transition: transform var(--tx, .18s ease-out),
              box-shadow var(--tx, .18s ease-out),
              border-color var(--tx, .18s ease-out);
}
.lb-lift:hover {
  transform: translateY(-3px);
  box-shadow: var(--sh-4, 0 16px 40px rgba(0,0,0,.14));
}

/* ─── Empty-state container ─────────────────────────────────── */
.lb-empty {
  display: grid; place-items: center; gap: 16px;
  padding: 56px 28px; text-align: center;
  border: 1px dashed currentColor;
  border-radius: var(--r-lg, 18px);
  opacity: .85;
}
.lb-empty .lb-empty-art { width: 200px; height: auto; opacity: .9; }
.lb-empty h3 { font: 700 18px/1.2 var(--font-pink-serif, ui-serif); margin: 0; }
.lb-empty p  { font: 400 14px/1.5 var(--font-pink-serif, ui-serif); opacity: .7; max-width: 380px; margin: 0 auto; }
.lb-empty .lb-empty-cta {
  margin-top: 10px;
  padding: 12px 22px; border-radius: 99px;
  border: 1.5px solid currentColor;
  font: 600 13px/1 var(--font-mono, monospace);
  text-decoration: none;
  transition: transform var(--tx-fast, .12s ease), background var(--tx, .18s ease);
}
.lb-empty .lb-empty-cta:hover { transform: translateY(-2px); }

/* ─── Pricing-card glow on browserops.shop ─────────────────── */
.lb-glow-card {
  transition: transform var(--tx, .18s ease),
              box-shadow var(--tx, .18s ease),
              border-color var(--tx, .18s ease);
}
.lb-glow-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 60px rgba(217,78,46,.18), 0 0 0 1px rgba(217,78,46,.18);
  border-color: rgba(217,78,46,.32);
}
.lb-glow-card.featured:hover {
  box-shadow: 0 28px 80px rgba(217,78,46,.32), 0 0 0 1px rgba(217,78,46,.42);
}

/* ─── Shared shop button primitives (browserops.shop) ───────── */
body[data-site="shop"] .btn,
.lb-shop-btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 11px 18px;
  border-radius: var(--r-sm);
  font: 600 13.5px/1 var(--font-shop-sans);
  border: 1px solid transparent;
  white-space: nowrap; text-decoration: none;
  transition: transform var(--tx-fast),
              box-shadow var(--tx),
              background var(--tx),
              color var(--tx),
              border-color var(--tx);
}
body[data-site="shop"] .btn-dark,
.lb-shop-btn.dark {
  background: var(--shop-ink); color: var(--shop-cream);
}
body[data-site="shop"] .btn-dark:hover,
.lb-shop-btn.dark:hover {
  background: #000; transform: translateY(-1px);
}
body[data-site="shop"] .btn-brand,
.lb-shop-btn.brand {
  background: var(--shop-brand); color: #fff;
}
body[data-site="shop"] .btn-brand:hover,
.lb-shop-btn.brand:hover {
  background: #bb3e22; transform: translateY(-1px);
  box-shadow: var(--glow-coral);
}
body[data-site="shop"] .btn-outline,
.lb-shop-btn.outline {
  border-color: var(--shop-line); background: transparent; color: var(--shop-ink);
}
body[data-site="shop"] .btn-outline:hover,
.lb-shop-btn.outline:hover {
  border-color: var(--shop-ink); background: var(--shop-ink); color: var(--shop-cream);
}
body[data-site="shop"] .btn-lg,
.lb-shop-btn.lg { padding: 15px 24px; font-size: 15px; border-radius: 11px; }

/* ─── Shop card hover lift ─────────────────────────────────── */
body[data-site="shop"] .lift,
.lb-shop-card {
  background: #fff; border: 1px solid var(--shop-line);
  border-radius: var(--r-md);
  box-shadow: var(--sh-2);
  transition: transform var(--tx), box-shadow var(--tx);
}
body[data-site="shop"] .lift:hover,
.lb-shop-card:hover { transform: translateY(-3px); box-shadow: var(--sh-3); }

/* ─── Cross-site arrival banner (used by memes.black) ──────── */
.lb-arrival {
  position: fixed; left: 50%; top: 18px;
  transform: translateX(-50%) translateY(-12px);
  z-index: var(--z-toast);
  display: flex; align-items: center; gap: 14px;
  padding: 12px 18px 12px 14px;
  background: rgba(20,18,30,.94);
  border: 1px solid rgba(255,78,163,.42);
  border-radius: var(--r);
  box-shadow: var(--sh-4), var(--glow-pink);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  color: #f6f4ef;
  font: 500 13px/1.4 var(--font-mono);
  max-width: min(92vw, 560px);
  opacity: 0;
  transition: opacity var(--tx-slow), transform var(--tx-slow);
}
.lb-arrival.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.lb-arrival .lb-arrival-icon {
  width: 36px; height: 36px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(255,78,163,.18);
}
.lb-arrival .lb-arrival-icon svg { width: 30px; height: 30px; }
.lb-arrival b { color: var(--neon-pink); font-weight: 600; }
.lb-arrival small { color: rgba(246,244,239,.55); display: block; margin-top: 2px; font-size: 11px; }
.lb-arrival button {
  margin-left: auto; background: none; border: 0; color: rgba(246,244,239,.5);
  cursor: pointer; font: 500 18px/1 var(--font-mono); padding: 0 4px;
}
.lb-arrival button:hover { color: #fff; }

/* ─── Iframe poster (cold-start mask) ─────────────────────── */
.lb-iframe-host { position: relative; }
.lb-iframe-poster {
  position: absolute; inset: 0; z-index: 2;
  display: grid; place-items: center; gap: 12px;
  pointer-events: none;
  opacity: 1;
  transition: opacity .55s var(--ease-out);
}
.lb-iframe-poster.fade { opacity: 0; }
.lb-iframe-poster .lb-poster-art {
  width: 46%; max-width: 220px; aspect-ratio: 1/1;
  border-radius: 50%;
  animation: lb-poster-breathe 2.4s ease-in-out infinite;
  filter: drop-shadow(0 12px 28px rgba(217,78,46,.18));
}
.lb-iframe-poster .lb-poster-line {
  font: italic 500 14px/1.4 var(--font-pink-serif);
  color: var(--pink-ink-soft, rgba(31,20,16,.65));
  letter-spacing: .02em;
}
@keyframes lb-poster-breathe {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.05); }
}