:root {
  --bg: #f2f2f7;
  --bg-2: #ffffff;
  --bg-3: #e5e5ea;
  --card: rgba(255, 255, 255, 0.72);
  --card-border: rgba(255, 255, 255, 0.8);
  --text: #1c1c1e;
  --text-2: #3a3a3c;
  --text-3: #6e6e73;
  --accent: #007aff;
  --accent-2: #5ac8fa;
  --danger: #ff3b30;
  --success: #34c759;
  --warning: #ff9500;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
  --blur: 20px;
  --header-bg: rgba(255, 255, 255, 0.72);
  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 28px;
  --hero-grad: linear-gradient(135deg, #ffd1dc 0%, #c5d9ff 50%, #d4b8ff 100%);
}

body.dark {
  --bg: #000000;
  --bg-2: #1c1c1e;
  --bg-3: #2c2c2e;
  --card: rgba(28, 28, 30, 0.72);
  --card-border: rgba(255, 255, 255, 0.08);
  --text: #ffffff;
  --text-2: #e5e5ea;
  --text-3: #98989d;
  --accent: #0a84ff;
  --accent-2: #64d2ff;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.35);
  --header-bg: rgba(28, 28, 30, 0.72);
  --hero-grad: linear-gradient(135deg, #3a1c4d 0%, #1c2a4d 50%, #1c4d4d 100%);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.55;
  transition: background 0.4s ease, color 0.4s ease;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed; inset: 0;
  pointer-events: none;
  background:
    radial-gradient(60% 50% at 10% 0%, rgba(0, 122, 255, 0.10), transparent 70%),
    radial-gradient(50% 40% at 100% 20%, rgba(255, 45, 85, 0.08), transparent 70%),
    radial-gradient(70% 50% at 50% 100%, rgba(90, 200, 250, 0.10), transparent 70%);
  z-index: -1;
}
body.dark::before {
  background:
    radial-gradient(60% 50% at 10% 0%, rgba(10, 132, 255, 0.22), transparent 70%),
    radial-gradient(50% 40% at 100% 20%, rgba(255, 55, 95, 0.16), transparent 70%),
    radial-gradient(70% 50% at 50% 100%, rgba(100, 210, 255, 0.18), transparent 70%);
}

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }

/* Header */
.header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 50;
  background: var(--header-bg);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(180%);
  backdrop-filter: blur(var(--blur)) saturate(180%);
  border-bottom: 1px solid var(--card-border);
}
.header-inner {
  max-width: 1024px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; gap: 12px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; color: var(--text); font-size: 18px;
}
.brand-logo {
  width: 36px; height: 36px;
  border-radius: 11px;
  overflow: hidden;
  display: block;
  box-shadow: var(--shadow-sm), 0 0 0 1px rgba(255,255,255,0.5) inset;
  background: #f2f2f7;
  flex-shrink: 0;
}
.brand-logo img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

.nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.nav a {
  color: var(--text-2);
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 14px; font-weight: 500;
  transition: background 0.2s ease, color 0.2s ease;
}
.nav a:hover { background: var(--bg-3); color: var(--text); }
.nav a.active { background: var(--accent); color: #fff; }

.actions { display: flex; align-items: center; gap: 8px; }

.theme-toggle, .menu-toggle {
  width: 40px; height: 40px;
  border-radius: 999px; border: 1px solid var(--card-border);
  background: var(--card);
  display: grid; place-items: center;
  cursor: pointer;
  color: var(--text);
  transition: transform 0.2s ease, background 0.2s ease;
  -webkit-backdrop-filter: blur(var(--blur));
  backdrop-filter: blur(var(--blur));
}
.theme-toggle:hover, .menu-toggle:hover { transform: scale(1.05); }
.theme-toggle:active, .menu-toggle:active { transform: scale(0.96); }
.theme-toggle .icon-moon { display: none; }
body.dark .theme-toggle .icon-sun { display: none; }
body.dark .theme-toggle .icon-moon { display: block; }

.menu-toggle { display: none; }
.menu-toggle span {
  display: block; width: 18px; height: 2px;
  background: var(--text); border-radius: 2px;
  position: relative;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.menu-toggle span::before,
.menu-toggle span::after {
  content: ''; position: absolute; left: 0; width: 18px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: transform 0.3s ease, top 0.3s ease;
}
.menu-toggle span::before { top: -6px; }
.menu-toggle span::after { top: 6px; }
.menu-toggle.open span { background: transparent; }
.menu-toggle.open span::before { top: 0; transform: rotate(45deg); }
.menu-toggle.open span::after { top: 0; transform: rotate(-45deg); }

/* Main layout */
main {
  max-width: 1024px;
  margin: 0 auto;
  padding: 96px 20px 60px;
}

.section { margin-bottom: 80px; scroll-margin-top: 80px; }
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}
.section-sub {
  color: var(--text-3);
  margin: 0 0 28px;
  font-size: 17px;
}

/* Hero */
.hero {
  position: relative;
  padding: 60px 28px 70px;
  border-radius: var(--radius-lg);
  background: var(--hero-grad);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--card-border);
  margin-bottom: 60px;
}
.hero::after {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(closest-side, rgba(255,255,255,0.6), transparent 70%) -10% 10%/40% 40% no-repeat,
    radial-gradient(closest-side, rgba(255,255,255,0.4), transparent 70%) 110% 90%/40% 40% no-repeat;
  pointer-events: none;
}
body.dark .hero::after {
  background:
    radial-gradient(closest-side, rgba(255,255,255,0.18), transparent 70%) -10% 10%/40% 40% no-repeat,
    radial-gradient(closest-side, rgba(255,255,255,0.1), transparent 70%) 110% 90%/40% 40% no-repeat;
}
.hero-inner { position: relative; z-index: 1; max-width: 720px; }
.hero-eyebrow {
  display: inline-block;
  font-size: 13px; font-weight: 600;
  background: rgba(255,255,255,0.55);
  color: #1c1c1e;
  padding: 6px 12px; border-radius: 999px;
  margin-bottom: 18px;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
body.dark .hero-eyebrow { background: rgba(255,255,255,0.14); color: #fff; }
.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1.05; letter-spacing: -0.03em; font-weight: 800;
  margin: 0 0 14px; color: #1c1c1e;
}
body.dark .hero h1 { color: #fff; }
.hero p {
  font-size: clamp(17px, 2vw, 22px);
  color: #3a3a3c;
  margin: 0 0 28px; max-width: 560px;
}
body.dark .hero p { color: #e5e5ea; }
.hero-cta { display: flex; gap: 10px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px;
  background: var(--accent); color: #fff; font-weight: 600;
  border: none; cursor: pointer; font-size: 16px;
  transition: transform 0.2s cubic-bezier(.34,1.56,.64,1), box-shadow 0.2s ease, background 0.2s ease;
  box-shadow: 0 6px 20px rgba(0,122,255,0.35);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(0,122,255,0.45); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn.btn-ghost {
  background: rgba(255,255,255,0.5);
  color: #1c1c1e;
  box-shadow: var(--shadow-sm);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
}
body.dark .btn.btn-ghost { background: rgba(255,255,255,0.12); color: #fff; }

.hero-pup {
  position: absolute; right: -20px; bottom: -20px;
  width: 280px; height: 280px;
  border-radius: 64px;
  overflow: hidden;
  background: linear-gradient(135deg, #ffd1dc, #c5d9ff);
  box-shadow: 0 24px 40px rgba(0,0,0,0.22), 0 0 0 4px rgba(255,255,255,0.55) inset;
  border: 4px solid rgba(255,255,255,0.7);
  animation: bob 5s ease-in-out infinite;
}
.hero-pup img {
  width: 100%; height: 100%; object-fit: cover;
  display: block;
}
@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(180%);
  backdrop-filter: blur(var(--blur)) saturate(180%);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card h3 { margin: 0 0 8px; font-size: 19px; letter-spacing: -0.01em; }
.card p, .card li { color: var(--text-2); font-size: 15.5px; }
.card .icon {
  display: inline-grid; place-items: center;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(0,122,255,0.12);
  color: var(--accent);
  margin-bottom: 12px;
}
.card .icon svg { width: 24px; height: 24px; display: block; }
.card.gradient-rose .icon { background: rgba(255,107,157,0.14); color: #e64c87; }
.card.gradient-mint .icon { background: rgba(52,199,89,0.14); color: #2ba84a; }
.card.gradient-peach .icon { background: rgba(255,149,0,0.14); color: #d97f00; }
.card.gradient-violet .icon { background: rgba(175,82,222,0.14); color: #9d3fc7; }
.card.gradient-rouge .icon { background: rgba(255,59,48,0.14); color: #e62a20; }
body.dark .card .icon { background: rgba(10,132,255,0.22); color: #5ac8fa; }
body.dark .card.gradient-rose .icon { background: rgba(255,107,157,0.22); color: #ff8eb5; }
body.dark .card.gradient-mint .icon { background: rgba(52,199,89,0.22); color: #5bd87a; }
body.dark .card.gradient-peach .icon { background: rgba(255,149,0,0.22); color: #ffae44; }
body.dark .card.gradient-violet .icon { background: rgba(175,82,222,0.22); color: #c478ee; }
body.dark .card.gradient-rouge .icon { background: rgba(255,59,48,0.22); color: #ff7a72; }
.card ul { padding-left: 18px; margin: 8px 0 0; }
.card ul li { margin: 6px 0; }

/* Stats row */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}
.stat {
  background: var(--card);
  border: 1px solid var(--card-border);
  -webkit-backdrop-filter: blur(var(--blur));
  backdrop-filter: blur(var(--blur));
  border-radius: var(--radius);
  padding: 18px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.stat-value { font-size: 28px; font-weight: 800; letter-spacing: -0.02em; }
.stat-label { color: var(--text-3); font-size: 13px; margin-top: 4px; }

/* Gallery */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.photo {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-sm);
  background: linear-gradient(135deg, #ffd1dc, #c5d9ff);
  display: grid; place-items: center;
  transition: transform 0.3s cubic-bezier(.34,1.56,.64,1), box-shadow 0.25s ease;
  padding: 0;
  font-family: inherit;
  cursor: zoom-in;
  appearance: none;
  -webkit-appearance: none;
}
.photo:hover { transform: scale(1.03); box-shadow: var(--shadow); }
.photo:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.photo img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  z-index: 1;
  transition: transform 0.5s ease;
}
.photo:hover img { transform: scale(1.06); }
.photo .fallback {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  font-size: 90px;
  color: #fff;
  text-shadow: 0 4px 18px rgba(0,0,0,0.2);
  z-index: 0;
}
.photo .caption {
  position: absolute; left: 12px; bottom: 12px; right: 12px;
  background: rgba(0,0,0,0.45);
  color: #fff;
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 13px;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  font-weight: 500;
  opacity: 0; transform: translateY(6px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 2;
}
.photo:hover .caption { opacity: 1; transform: translateY(0); }

.photo.p1 { background: linear-gradient(135deg, #ffd1dc, #ffe6f0); }
.photo.p2 { background: linear-gradient(135deg, #c5d9ff, #e0ebff); }
.photo.p3 { background: linear-gradient(135deg, #d4b8ff, #ecdcff); }
.photo.p4 { background: linear-gradient(135deg, #ffe1b8, #fff1d6); }
.photo.p5 { background: linear-gradient(135deg, #b8ffd4, #d6ffe6); }
.photo.p6 { background: linear-gradient(135deg, #b8e0ff, #d6efff); }
.photo.p7 { background: linear-gradient(135deg, #ffb8b8, #ffd6d6); }
.photo.p8 { background: linear-gradient(135deg, #d6ffb8, #ecffd6); }

/* FAQ */
.faq { display: grid; gap: 12px; }
.faq-item {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  -webkit-backdrop-filter: blur(var(--blur));
  backdrop-filter: blur(var(--blur));
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.faq-q {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  cursor: pointer; font-weight: 600; font-size: 16.5px;
  color: var(--text);
  background: transparent; border: none; width: 100%;
  text-align: left;
  font-family: inherit;
}
.faq-q .chev {
  width: 22px; height: 22px;
  display: grid; place-items: center;
  background: var(--bg-3); color: var(--text);
  border-radius: 999px;
  font-size: 14px;
  transition: transform 0.3s cubic-bezier(.34,1.56,.64,1);
  flex-shrink: 0;
}
.faq-item.open .faq-q .chev { transform: rotate(180deg); background: var(--accent); color: #fff; }
.faq-a {
  max-height: 0; overflow: hidden;
  padding: 0 20px;
  color: var(--text-2);
  transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-item.open .faq-a { max-height: 600px; padding: 0 20px 20px; }

/* Tip blocks */
.tip {
  display: flex; gap: 12px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px 18px;
  -webkit-backdrop-filter: blur(var(--blur));
  backdrop-filter: blur(var(--blur));
  box-shadow: var(--shadow-sm);
  margin-bottom: 14px;
}
.tip.tip-warn { border-left-color: var(--warning); }
.tip.tip-danger { border-left-color: var(--danger); }
.tip.tip-success { border-left-color: var(--success); }
.tip-emoji {
  width: 36px; height: 36px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--accent);
  font-size: 0;
  color: transparent;
  position: relative;
  box-shadow: 0 4px 12px rgba(0,122,255,0.25);
}
.tip-emoji::after {
  content: '';
  position: absolute; inset: 7px;
  background-color: #fff;
  -webkit-mask: var(--tip-icon) center/contain no-repeat;
  mask: var(--tip-icon) center/contain no-repeat;
  --tip-icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm1 15h-2v-6h2v6zm0-8h-2V7h2v2z'/%3E%3C/svg%3E");
}
.tip-warn .tip-emoji {
  background: var(--warning);
  box-shadow: 0 4px 12px rgba(255,149,0,0.30);
}
.tip-warn .tip-emoji::after {
  --tip-icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M1 21h22L12 2 1 21zm12-3h-2v-2h2v2zm0-4h-2v-4h2v4z'/%3E%3C/svg%3E");
}
.tip-danger .tip-emoji {
  background: var(--danger);
  box-shadow: 0 4px 12px rgba(255,59,48,0.30);
}
.tip-danger .tip-emoji::after {
  --tip-icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M15.73 3H8.27L3 8.27v7.46L8.27 21h7.46L21 15.73V8.27L15.73 3zM16 14.59L14.59 16 12 13.41 9.41 16 8 14.59 10.59 12 8 9.41 9.41 8 12 10.59 14.59 8 16 9.41 13.41 12 16 14.59z'/%3E%3C/svg%3E");
}
.tip-success .tip-emoji {
  background: var(--success);
  box-shadow: 0 4px 12px rgba(52,199,89,0.30);
}
.tip-success .tip-emoji::after {
  --tip-icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-2 15l-5-5 1.41-1.41L10 14.17l7.59-7.59L19 8l-9 9z'/%3E%3C/svg%3E");
}
.tip-body { flex: 1; }
.tip-body strong { display: block; margin-bottom: 4px; }
.tip-body p { margin: 0; color: var(--text-2); font-size: 15px; }

/* Timeline */
.timeline { position: relative; padding-left: 28px; margin: 24px 0; }
.timeline::before {
  content: ''; position: absolute;
  left: 8px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(var(--accent), var(--accent-2));
  border-radius: 2px;
}
.timeline-item { position: relative; margin-bottom: 18px; }
.timeline-item::before {
  content: ''; position: absolute; left: -28px; top: 6px;
  width: 18px; height: 18px;
  border-radius: 999px;
  background: var(--accent);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--accent);
}
.timeline-item h4 { margin: 0 0 4px; font-size: 16px; }
.timeline-item p { margin: 0; color: var(--text-2); font-size: 15px; }

/* Two-column rows: photo + text */
.split {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 22px;
  align-items: center;
  margin-bottom: 24px;
}
.split.reverse { grid-template-columns: 1.2fr 1fr; }
.split.reverse .split-photo { order: 2; }
.split.reverse .split-text { order: 1; }
.split-photo {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  aspect-ratio: 1 / 1;
  position: relative;
  background: linear-gradient(135deg, #ffd1dc, #c5d9ff);
}
.split-photo .fallback {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-size: 90px; color: #fff;
  text-shadow: 0 4px 18px rgba(0,0,0,0.2);
  z-index: 0;
}
.split-photo img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  z-index: 1;
}
.split-text h3 { margin: 0 0 10px; font-size: 22px; letter-spacing: -0.01em; }
.split-text p { color: var(--text-2); }

@media (max-width: 700px){
  .split, .split.reverse { grid-template-columns: 1fr; }
  .split.reverse .split-photo { order: 0; }
  .split.reverse .split-text { order: 0; }
}

/* Footer */
footer {
  border-top: 1px solid var(--card-border);
  background: var(--card);
  -webkit-backdrop-filter: blur(var(--blur));
  backdrop-filter: blur(var(--blur));
  margin-top: 40px;
}
.footer-inner {
  max-width: 1024px; margin: 0 auto;
  padding: 24px 20px;
  display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; align-items: center;
  color: var(--text-3); font-size: 14px;
}
.footer-links { display: flex; gap: 14px; flex-wrap: wrap; }
.footer-links a { color: var(--text-3); }
.footer-links a:hover { color: var(--accent); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(.34,1.56,.64,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Mobile menu */
@media (max-width: 1100px) {
  .menu-toggle { display: grid; }
  .nav {
    position: fixed; top: 64px; left: 12px; right: 12px;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 14px;
    -webkit-backdrop-filter: blur(var(--blur)) saturate(180%);
    backdrop-filter: blur(var(--blur)) saturate(180%);
    box-shadow: var(--shadow);
    flex-direction: column; align-items: stretch; gap: 4px;
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: transform 0.3s cubic-bezier(.34,1.56,.64,1), opacity 0.25s ease;
    max-height: calc(100vh - 80px); overflow-y: auto;
  }
  .nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav a { padding: 12px 14px; font-size: 16px; }
}

@media (max-width: 500px) {
  main { padding: 88px 14px 50px; }
  .hero { padding: 36px 22px 60px; }
  .hero-pup { width: 180px; height: 180px; right: -20px; bottom: -20px; border-radius: 42px; opacity: 0.95; }
  .section { margin-bottom: 56px; }
}

/* ===== Lightbox ===== */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0, 0, 0, 0.92);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  display: none;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease;
  touch-action: none;
  overscroll-behavior: contain;
}
.lightbox.open { display: flex; opacity: 1; }
body.lb-locked { overflow: hidden; }

.lb-toolbar {
  position: absolute; top: 0; left: 0; right: 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px;
  gap: 12px;
  z-index: 3;
  color: #fff;
}
.lb-counter {
  font-size: 14px; font-weight: 600;
  background: rgba(255,255,255,0.10);
  padding: 6px 12px;
  border-radius: 999px;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.lb-actions { display: flex; gap: 8px; align-items: center; }
.lb-btn {
  width: 42px; height: 42px;
  border-radius: 999px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.14);
  color: #fff;
  cursor: pointer;
  display: grid; place-items: center;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: background 0.2s ease, transform 0.2s ease;
  text-decoration: none;
}
.lb-btn:hover { background: rgba(255,255,255,0.20); transform: scale(1.06); }
.lb-btn:active { transform: scale(0.94); }
.lb-btn svg { width: 20px; height: 20px; display: block; }
.lb-btn.lb-close { background: rgba(255,59,48,0.30); border-color: rgba(255,59,48,0.40); }
.lb-btn.lb-close:hover { background: rgba(255,59,48,0.50); }

.lb-stage {
  flex: 1;
  position: relative;
  display: grid; place-items: center;
  overflow: hidden;
  margin: 0 8px;
  touch-action: none;
  user-select: none;
}
.lb-image {
  max-width: min(94vw, 1400px);
  max-height: 82vh;
  width: auto; height: auto;
  object-fit: contain;
  display: block;
  cursor: grab;
  user-select: none;
  -webkit-user-drag: none;
  transform: translate3d(0,0,0) scale(1);
  transition: transform 0.3s cubic-bezier(.34,1.56,.64,1), opacity 0.2s ease;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  will-change: transform;
}
.lb-image.dragging { cursor: grabbing; transition: none; }
.lb-image.swiping { transition: none; }
.lb-image.zoomed { cursor: grab; }
.lb-image.loading { opacity: 0; }

.lb-spinner {
  position: absolute;
  width: 44px; height: 44px;
  border-radius: 999px;
  border: 3px solid rgba(255,255,255,0.20);
  border-top-color: #fff;
  animation: lb-spin 0.9s linear infinite;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.lb-spinner.active { opacity: 1; }
@keyframes lb-spin { to { transform: rotate(360deg); } }

.lb-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 52px; height: 52px;
  border-radius: 999px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.14);
  color: #fff;
  cursor: pointer;
  display: grid; place-items: center;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  z-index: 3;
  transition: background 0.2s ease, transform 0.2s ease;
}
.lb-nav:hover { background: rgba(255,255,255,0.22); transform: translateY(-50%) scale(1.08); }
.lb-nav:active { transform: translateY(-50%) scale(0.94); }
.lb-nav svg { width: 22px; height: 22px; display: block; }
.lb-prev { left: 16px; }
.lb-next { right: 16px; }

.lb-caption {
  position: absolute; left: 50%; bottom: 18px;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.55);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: #fff;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
  max-width: 90vw;
  text-align: center;
  z-index: 3;
  pointer-events: none;
}
.lb-caption:empty { display: none; }

@media (max-width: 600px) {
  .lb-nav { width: 44px; height: 44px; }
  .lb-prev { left: 8px; }
  .lb-next { right: 8px; }
  .lb-toolbar { padding: 10px 12px; }
  .lb-btn { width: 38px; height: 38px; }
  .lb-image { max-height: 78vh; }
}