/* ═══════════════════════════════════════════════════════════════════
   Network-wide upgrade layer · scoped to .upg-* classes
   Loads via <link> tag — does not collide with existing site CSS
   Modules: skip-link, sticky mobile CTA, lightbox, FAQ accordion,
            style-chip filter, .upg-* base tokens
   ═══════════════════════════════════════════════════════════════════ */

:root {
  --upg-bg:    rgba(10,10,10,.96);
  --upg-card:  rgba(255,255,255,.04);
  --upg-line:  rgba(255,255,255,.12);
  --upg-text:  #f3f3f3;
  --upg-dim:   #a8a8a8;
  --upg-gold:  #d4a04d;
  --upg-r:     999px;
}

/* Skip to content (a11y) */
.upg-skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--upg-gold); color: #111;
  padding: 12px 20px; font-weight: 700; z-index: 9999;
  font-family: 'Inter', system-ui, sans-serif;
}
.upg-skip:focus { left: 8px; top: 8px; }

/* Sticky bottom mobile CTA bar */
.upg-sticky-cta {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 1000;
  display: none;
  gap: 8px; padding: 10px 12px;
  background: var(--upg-bg);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--upg-line);
  font-family: 'Inter', system-ui, sans-serif;
}
.upg-sticky-cta a {
  flex: 1; text-align: center; padding: 13px 8px;
  font-size: .88rem; font-weight: 700;
  border-radius: var(--upg-r);
  text-decoration: none; letter-spacing: .04em;
  white-space: nowrap;
}
.upg-sticky-cta .upg-btn-text  { background: var(--upg-gold); color: #111; }
.upg-sticky-cta .upg-btn-call  { background: transparent; color: #fff; border: 1px solid var(--upg-line); }
.upg-sticky-cta .upg-btn-ig    { background: transparent; color: #fff; border: 1px solid var(--upg-line); }
@media (max-width: 760px) {
  .upg-sticky-cta { display: flex; }
  body { padding-bottom: 76px !important; }
}

/* Lightbox */
.upg-lightbox {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,.96);
  display: none; align-items: center; justify-content: center;
  padding: 20px;
  font-family: 'Inter', system-ui, sans-serif;
}
.upg-lightbox.upg-open { display: flex; }
.upg-lightbox img {
  max-width: 100%; max-height: 88vh; object-fit: contain;
  border-radius: 8px; box-shadow: 0 20px 60px rgba(0,0,0,.6);
}
.upg-lightbox-btn {
  position: absolute; background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  color: #fff; width: 48px; height: 48px; border-radius: 50%;
  cursor: pointer; font-size: 1.6rem; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s;
}
.upg-lightbox-btn:hover { background: rgba(255,255,255,.18); }
.upg-lightbox-close { top: 20px; right: 20px; }
.upg-lightbox-prev  { left: 20px; top: 50%; transform: translateY(-50%); }
.upg-lightbox-next  { right: 20px; top: 50%; transform: translateY(-50%); }
.upg-lightbox-cap {
  position: absolute; bottom: 18px; left: 50%; transform: translateX(-50%);
  color: #ccc; font-size: .85rem; max-width: 90%; text-align: center;
  letter-spacing: .02em;
}
@media (max-width: 600px) {
  .upg-lightbox-prev { left: 8px; }
  .upg-lightbox-next { right: 8px; }
  .upg-lightbox-btn { width: 40px; height: 40px; font-size: 1.3rem; }
}

/* Cursor on lightbox-able images */
[data-upg-lightbox] img,
.portfolio-grid img,
.gallery img {
  cursor: zoom-in;
}

/* ─── Portfolio bubble overlay — auto-injected from alt text ─── */
.upg-tile {
  position: relative;
  display: block;
  overflow: hidden;
  /* keep existing border-radius from parent if any */
}
.upg-tile-overlay {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 14px 12px 12px;
  background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,.55) 38%, rgba(0,0,0,.92) 100%);
  color: #fff;
  pointer-events: none;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .25s ease, transform .25s ease;
  font-family: 'Inter', system-ui, sans-serif;
  z-index: 2;
}
.upg-tile:hover .upg-tile-overlay,
.upg-tile:focus-within .upg-tile-overlay {
  opacity: 1;
  transform: translateY(0);
}
.upg-tile-style {
  display: inline-block;
  padding: 4px 10px;
  background: var(--upg-gold);
  color: #1a1208;
  border-radius: var(--upg-r);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.upg-tile-subject {
  display: block;
  font-size: .88rem;
  font-weight: 600;
  line-height: 1.3;
  text-shadow: 0 1px 4px rgba(0,0,0,.5);
}
.upg-tile-placement {
  display: block;
  font-size: .72rem;
  color: rgba(255,255,255,.78);
  letter-spacing: .06em;
  margin-top: 3px;
  text-transform: uppercase;
}

/* Mobile: always-visible strip rather than hover (touch has no hover) */
@media (hover: none) {
  .upg-tile-overlay {
    opacity: 1;
    transform: none;
    background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,.62) 50%, rgba(0,0,0,.94) 100%);
    padding: 10px 10px 10px;
  }
  .upg-tile-style { font-size: .62rem; padding: 3px 8px; }
  .upg-tile-subject { font-size: .82rem; }
  .upg-tile-placement { font-size: .66rem; }
}

/* FAQ accordion — works with existing <details> tags or .upg-faq-item */
details.upg-faq-item,
.upg-faq-list details {
  border-bottom: 1px solid rgba(255,255,255,.12);
  padding: 20px 0;
}
details.upg-faq-item summary,
.upg-faq-list details summary {
  cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; padding-right: 12px;
  font-weight: 600; font-size: 1.04rem;
  font-family: 'Inter', system-ui, sans-serif;
}
details.upg-faq-item summary::-webkit-details-marker,
.upg-faq-list details summary::-webkit-details-marker { display: none; }
details.upg-faq-item summary::after,
.upg-faq-list details summary::after {
  content: '+'; font-size: 1.6rem; color: var(--upg-gold);
  transition: transform .25s; line-height: 1; flex-shrink: 0;
}
details.upg-faq-item[open] summary::after,
.upg-faq-list details[open] summary::after { transform: rotate(45deg); }

/* Trust strip module (used per-site with data) */
.upg-trust-strip {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; padding: 28px 20px;
  background: rgba(255,255,255,.03);
  border-top: 1px solid var(--upg-line);
  border-bottom: 1px solid var(--upg-line);
  text-align: center;
  font-family: 'Inter', system-ui, sans-serif;
}
@media (max-width: 760px) { .upg-trust-strip { grid-template-columns: repeat(2, 1fr); gap: 20px; } }
.upg-trust-num {
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 800; color: var(--upg-gold); display: block; line-height: 1;
}
.upg-trust-label {
  font-size: .68rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--upg-dim); margin-top: 6px;
}

/* Small style chip filter row */
.upg-chips {
  display: flex; flex-wrap: wrap; gap: 8px; padding: 16px 0;
  font-family: 'Inter', system-ui, sans-serif;
}
.upg-chip {
  padding: 7px 14px; border: 1px solid var(--upg-line);
  border-radius: var(--upg-r); background: transparent;
  color: var(--upg-dim); cursor: pointer; font-size: .8rem;
  letter-spacing: .04em; transition: all .15s;
}
.upg-chip:hover { color: #fff; border-color: rgba(255,255,255,.3); }
.upg-chip.upg-chip-active {
  background: var(--upg-gold); color: #111;
  border-color: var(--upg-gold); font-weight: 700;
}