/* ═══════════════════════════════════════════════════════════════════════
   STUDYRIA — PDF CHECKOUT PAGE V2 (Secure UI Upgrade)
   Modular CSS for the Product Detail Page (PDP)
   V2 — 2026-08-01
   ═══════════════════════════════════════════════════════════════════════ */

/* ═══ PAGE LAYOUT ═══ */
.pdp-page { padding-bottom: 100px; }
.pdp-container { padding-top: 0; }
.pdp-layout {
  display: grid; grid-template-columns: 1fr; gap: 28px; align-items: start; padding-top: 24px;
}
.pdp-right { display: none; }
@media (min-width:768px) and (max-width:1023px) { .pdp-layout { grid-template-columns: 260px 1fr; } }
@media (min-width:1024px) { .pdp-layout { grid-template-columns: 300px 1fr 340px; } .pdp-right { display: block; } }
@media (max-width:480px) { .pdp-mobile-price-block { display: block !important; } }

/* ═══ HERO STRIP ═══ */
.pdp-hero-strip {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg,rgba(61,142,248,0.06) 0%,transparent 100%);
  border-bottom: 1px solid var(--glass-border); padding: 14px 0; margin-bottom: 0;
}
.pdp-hero-orb { position: absolute; border-radius: 50%; filter: blur(70px); pointer-events: none; }
.pdp-hero-orb1 { width:400px;height:400px;background:rgba(61,142,248,0.08);top:-200px;left:-100px; }
.pdp-hero-orb2 { width:300px;height:300px;background:rgba(0,200,232,0.06);top:-150px;right:0; }
.pdp-back-row { display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap; }
.pdp-back-btn {
  display:inline-flex; align-items:center; gap:6px; padding:7px 14px; border-radius:20px;
  background:var(--glass); border:1px solid var(--glass-border); color:var(--text2);
  font-size:.8rem; font-weight:600; cursor:pointer; font-family:var(--font-body);
  transition:opacity .2s, border-color .2s;
}
.pdp-back-btn:hover { opacity:.8; border-color:var(--accent); }
.pdp-breadcrumb { display:flex; align-items:center; gap:6px; font-size:.75rem; flex-wrap:wrap; }
.pdp-bc-link { color:var(--accent); cursor:pointer; font-weight:500; transition:opacity .2s; }
.pdp-bc-link:hover { opacity:.7; }
.pdp-bc-sep { color:var(--text3); }
.pdp-bc-cur { color:var(--text2); max-width:200px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

/* ═══ COVER CARD ═══ */
.pdp-left { position: static; }
.pdp-cover-card {
  border-radius:20px; overflow:visible; background:var(--glass);
  border:1px solid var(--glass-border);
  box-shadow:0 20px 60px rgba(0,0,0,0.45),0 0 0 1px rgba(255,255,255,0.04);
}
.pdp-cover-wrap {
  position:relative; border-radius:18px 18px 0 0; overflow:hidden;
  aspect-ratio:2/3; background:var(--bg3); width:100%; max-width:100%;
  display:flex; align-items:center; justify-content:center;
  contain:layout paint; transform:none !important;
  touch-action:pan-y; -webkit-user-select:none; user-select:none;
  -webkit-tap-highlight-color:transparent;
}
.pdp-cover-img {
  width:100%; height:100%; object-fit:contain; object-position:center;
  display:block; max-width:100%;
  transform:none !important; transition:none !important; will-change:auto !important;
  -webkit-user-drag:none; -webkit-user-select:none; user-select:none; pointer-events:none;
}
.pdp-cover-wrap img { transform:none !important; transition:none !important; }
.pdp-cover-fallback { width:100%; height:100%; display:flex; align-items:center; justify-content:center; color:rgba(255,255,255,0.4); }
.pdp-cover-tag {
  position:absolute; top:12px; left:12px; padding:4px 10px; border-radius:20px;
  font-size:.65rem; font-weight:800; text-transform:uppercase; letter-spacing:.06em;
  backdrop-filter:blur(8px);
}
.pdp-cover-discount {
  position:absolute; top:12px; right:12px; width:48px; height:48px; border-radius:50%;
  background:linear-gradient(135deg,#ff4d6d,#f97316);
  display:flex; align-items:center; justify-content:center;
  font-size:.75rem; font-weight:900; color:#fff;
  box-shadow:0 4px 16px rgba(255,77,109,0.5);
  animation:pdpDiscountPop .5s cubic-bezier(0.34,1.56,0.64,1) both;
}
@keyframes pdpDiscountPop { from{opacity:0;transform:scale(0)} to{opacity:1;transform:scale(1)} }
.pdp-cover-actions {
  display:flex; gap:0; border-top:1px solid var(--glass-border);
  border-radius:0 0 18px 18px; overflow:hidden;
}
.pdp-cover-action-btn {
  flex:1; padding:11px 8px; display:flex; flex-direction:column; align-items:center; gap:4px;
  font-size:.65rem; font-weight:600; color:var(--text2); cursor:pointer;
  border:none; background:none; font-family:var(--font-body);
  transition:background .2s; border-right:1px solid var(--glass-border);
  -webkit-tap-highlight-color:transparent;
}
.pdp-cover-action-btn:last-child { border-right:none; }
.pdp-cover-action-btn:hover { background:rgba(61,142,248,0.08); }

/* ═══ META BLOCK ═══ */
.pdp-meta-block { padding:0 4px; }
.pdp-tags-row { display:flex; align-items:center; gap:8px; flex-wrap:wrap; margin-bottom:10px; }
.pdp-inline-tag {
  padding:4px 10px; border-radius:20px; font-size:.65rem; font-weight:800;
  text-transform:uppercase; letter-spacing:.06em; backdrop-filter:blur(8px);
}
.pdp-offer-badge {
  display:inline-flex; align-items:center; gap:5px; padding:3px 10px; border-radius:20px;
  font-size:.68rem; font-weight:700; background:rgba(255,77,109,0.12);
  border:1px solid rgba(255,77,109,0.25); color:#ff8fa3;
}
.pdp-offer-dot { width:6px; height:6px; border-radius:50%; background:#ff4d6d; animation:pdpPulse 1.5s ease-in-out infinite; }
@keyframes pdpPulse { 0%,100%{opacity:1} 50%{opacity:.4} }
.pdp-title { font-family:var(--font-display); font-size:clamp(1.3rem,4vw,2rem); font-weight:800; line-height:1.2; margin:0 0 12px; color:var(--text); }
.pdp-author-row { display:flex; align-items:center; gap:10px; margin-bottom:12px; }
.pdp-author-avatar { width:36px; height:36px; border-radius:50%; background:var(--grad-primary); display:flex; align-items:center; justify-content:center; font-size:1rem; font-weight:800; color:#fff; flex-shrink:0; }
.pdp-author-by { font-size:.72rem; color:var(--text2); font-weight:500; }
.pdp-author-name { font-size:.88rem; font-weight:700; color:var(--text); }
.pdp-rating-row { display:flex; align-items:center; gap:8px; margin-bottom:16px; flex-wrap:wrap; }
.pdp-stars { display:inline-flex; gap:1px; }
.pdp-rating-val { font-size:.9rem; font-weight:800; color:var(--gold); }
.pdp-rating-count { font-size:.78rem; color:var(--text2); }
.pdp-rating-sep { color:var(--text3); }
.pdp-students-count { font-size:.78rem; color:var(--text2); }

/* ═══ INFO CHIPS ═══ */
.pdp-info-chips { display:flex; flex-wrap:wrap; gap:10px; margin-bottom:24px; }
.pdp-info-chip {
  display:flex; flex-direction:column; gap:2px; padding:10px 14px;
  border-radius:var(--radius); background:var(--glass); border:1px solid var(--glass-border);
  min-width:80px; transition:border-color .2s;
}
.pdp-info-chip:hover { border-color:var(--glass-border-hover); }
.pdp-ic-icon { font-size:1rem; }
.pdp-ic-label { font-size:.62rem; color:var(--text2); font-weight:600; text-transform:uppercase; letter-spacing:.04em; }
.pdp-ic-val { font-size:.82rem; font-weight:700; color:var(--text); }

/* ═══ SECTIONS ═══ */
.pdp-section { margin-bottom:28px; }
.pdp-section-title { font-size:1rem; font-weight:800; margin-bottom:14px; color:var(--text); font-family:var(--font-body); }

/* Description */
.pdp-desc-wrap { position:relative; max-height:100px; overflow:hidden; transition:max-height .3s ease; }
.pdp-desc-wrap.expanded { max-height:1000px; }
.pdp-desc-wrap:not(.expanded)::after { content:''; position:absolute; bottom:0; left:0; right:0; height:40px; background:linear-gradient(transparent,var(--bg)); pointer-events:none; }
.pdp-desc-text { font-size:.85rem; line-height:1.7; color:var(--text2); margin:0; }
.pdp-read-more-btn {
  display:inline-block; margin-top:8px; padding:5px 14px; border-radius:16px;
  background:var(--glass); border:1px solid var(--glass-border); color:var(--accent);
  font-size:.75rem; font-weight:700; cursor:pointer; font-family:var(--font-body); transition:opacity .2s;
}
.pdp-read-more-btn:hover { opacity:.8; }

/* Feature cards */
.pdp-features-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(140px,1fr)); gap:10px; }
.pdp-feature-card {
  display:flex; align-items:center; gap:8px; padding:12px 14px;
  border-radius:var(--radius); background:var(--glass); border:1px solid var(--glass-border);
  font-size:.78rem; font-weight:600; color:var(--text);
  transition:transform .2s, border-color .2s;
}
.pdp-feature-card:hover { transform:translateY(-2px); border-color:var(--glass-border-hover); }
.pdp-feature-icon { font-size:1.1rem; flex-shrink:0; }

/* Why choose */
.pdp-outcomes-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(140px,1fr)); gap:10px; }
.pdp-outcome-item {
  display:flex; align-items:center; gap:8px; padding:10px 12px;
  border-radius:var(--radius); background:var(--glass); border:1px solid var(--glass-border);
  font-size:.8rem; font-weight:500; color:var(--text2); transition:border-color .2s;
}
.pdp-outcome-item:hover { border-color:var(--glass-border-hover); }
.pdp-outcome-check {
  width:18px; height:18px; border-radius:50%; background:rgba(16,217,142,0.12);
  display:flex; align-items:center; justify-content:center; font-size:.65rem; color:var(--success); font-weight:800; flex-shrink:0;
}

/* Audience */
.pdp-audience-grid { display:flex; flex-wrap:wrap; gap:10px; }
.pdp-audience-chip {
  display:flex; align-items:center; gap:6px; padding:8px 14px; border-radius:20px;
  background:var(--glass); border:1px solid var(--glass-border); font-size:.78rem; font-weight:600; color:var(--text); transition:border-color .2s;
}
.pdp-audience-chip:hover { border-color:var(--glass-border-hover); }

/* ═══ TRUST BADGES ═══ */
.pdp-trust-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(120px,1fr)); gap:10px; }
.pdp-trust-badge {
  display:flex; flex-direction:column; align-items:center; gap:6px; padding:14px 10px;
  border-radius:var(--radius); background:var(--glass); border:1px solid var(--glass-border);
  text-align:center; transition:transform .2s;
}
.pdp-trust-badge:hover { transform:translateY(-2px); }
.pdp-trust-icon { font-size:1.4rem; }
.pdp-trust-label { font-size:.68rem; font-weight:700; color:var(--text2); }

/* ═══ PREVIEW ═══ */
.pdp-preview-track { position:relative; margin-top:14px; display:none; grid-column:1 / -1; }
.pdp-preview-track.active { display:block; }
.pdp-preview-sticky {
  position:sticky; top:88px; display:flex; flex-direction:column; gap:10px;
  height:calc(100vh - 88px - 24px); height:calc(100dvh - 88px - 24px); max-height:720px;
  padding:14px; border-radius:18px; background:var(--glass); border:1px solid var(--glass-border);
  box-shadow:0 20px 60px rgba(0,0,0,0.45),0 0 0 1px rgba(255,255,255,0.04);
}
.pdp-preview-stage {
  position:relative; flex:1; width:100%; min-height:0;
  display:flex; align-items:center; justify-content:center;
  background:var(--bg3); border-radius:14px; overflow:hidden;
  contain:layout paint; -webkit-user-select:none; user-select:none; -webkit-user-drag:none;
}
.pdp-preview-img {
  max-width:100%; max-height:100%; width:auto; height:auto;
  object-fit:contain; object-position:center; display:none;
  -webkit-user-drag:none; pointer-events:none;
}
.pdp-preview-img.loaded { display:block; }
.pdp-preview-loading {
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  flex-direction:column; gap:8px; font-size:.78rem; font-weight:600; color:var(--text2);
}
.pdp-preview-spinner {
  width:22px; height:22px; border-radius:50%;
  border:2.5px solid rgba(61,142,248,0.25); border-top-color:var(--accent);
  animation:pdpSpin .8s linear infinite;
}
@keyframes pdpSpin { to { transform:rotate(360deg); } }
.pdp-preview-pageindicator {
  position:absolute; bottom:10px; left:50%; transform:translateX(-50%);
  padding:4px 12px; border-radius:20px; background:rgba(0,0,0,0.6);
  backdrop-filter:blur(8px); font-size:.72rem; font-weight:700; color:var(--text); pointer-events:none;
}
.pdp-preview-watermark {
  position:absolute; top:50%; left:50%; transform:translate(-50%,-50%) rotate(-30deg);
  font-size:clamp(.8rem,3vw,1.5rem); font-weight:900; color:rgba(255,255,255,0.06);
  pointer-events:none; text-align:center; line-height:1.8; white-space:nowrap; letter-spacing:.1em; z-index:5;
}

/* Thumbnail strip */
.pdp-thumb-strip { display:flex; gap:8px; overflow-x:auto; padding:8px 0; -webkit-overflow-scrolling:touch; scrollbar-width:thin; scrollbar-color:var(--glass-border) transparent; }
.pdp-thumb-strip::-webkit-scrollbar { height:4px; }
.pdp-thumb-strip::-webkit-scrollbar-thumb { background:var(--glass-border); border-radius:2px; }
.pdp-thumb {
  flex-shrink:0; width:60px; height:80px; border-radius:6px; overflow:hidden;
  border:2px solid transparent; cursor:pointer; background:var(--bg3); position:relative;
  transition:border-color .2s, transform .15s;
}
.pdp-thumb:hover { transform:scale(1.05); }
.pdp-thumb.active { border-color:var(--accent); }
.pdp-thumb img { width:100%; height:100%; object-fit:cover; pointer-events:none; -webkit-user-drag:none; }
.pdp-thumb-num { position:absolute; bottom:2px; right:2px; font-size:.55rem; font-weight:700; color:#fff; background:rgba(0,0,0,0.6); padding:1px 4px; border-radius:4px; }
@media (max-width:767px) { .pdp-thumb { width:48px; height:64px; } }

/* ═══ PRICE ═══ */
.pdp-mobile-price-block { display:none; }
.pdp-mobile-price-card { padding:16px; border-radius:var(--radius); background:var(--glass); border:1px solid var(--glass-border); }
.pdp-price-row { display:flex; align-items:center; gap:10px; flex-wrap:wrap; margin-bottom:12px; }
.pdp-price-now { font-size:2rem; font-weight:900; color:var(--text); font-family:var(--font-body); }
.pdp-price-was { font-size:1.1rem; font-weight:600; color:var(--text3); text-decoration:line-through; }
.pdp-price-free { font-size:2rem; font-weight:900; background:var(--grad-success); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.pdp-free-badge { font-size:.78rem; font-weight:700; color:var(--success); padding:3px 10px; border-radius:16px; background:rgba(16,217,142,0.12); border:1px solid rgba(16,217,142,0.25); }
.pdp-discount-badge { display:inline-flex; align-items:center; gap:4px; padding:3px 10px; border-radius:16px; font-size:.72rem; font-weight:800; background:rgba(255,77,109,0.12); border:1px solid rgba(255,77,109,0.25); color:#ff8fa3; }
.pdp-discount-dot { width:6px; height:6px; border-radius:50%; background:#ff4d6d; }
.pdp-urgency-bar { display:flex; align-items:center; gap:6px; padding:6px 12px; border-radius:12px; background:rgba(255,77,109,0.08); font-size:.72rem; font-weight:600; color:#ff8fa3; margin-bottom:12px; }
.pdp-urgency-dot { width:6px; height:6px; border-radius:50%; background:#ff4d6d; animation:pdpPulse 1.5s ease-in-out infinite; }

/* ═══ BUTTONS ═══ */
.pdp-buy-primary {
  width:100%; padding:14px 20px; border-radius:var(--radius);
  background:var(--grad-primary); border:none; color:#fff;
  font-size:.95rem; font-weight:800; font-family:var(--font-body);
  cursor:pointer; display:flex; align-items:center; justify-content:center; gap:8px;
  transition:opacity .2s, transform .1s; -webkit-tap-highlight-color:transparent;
}
.pdp-buy-primary:hover { opacity:.9; }
.pdp-buy-primary:active { transform:scale(.98); }
.pdp-wish-secondary {
  width:100%; padding:11px 16px; border-radius:var(--radius);
  background:var(--glass); border:1px solid var(--glass-border); color:var(--text2);
  font-size:.82rem; font-weight:600; font-family:var(--font-body); cursor:pointer;
  display:flex; align-items:center; justify-content:center; gap:8px; margin-top:10px;
  transition:border-color .2s;
}
.pdp-wish-secondary:hover { border-color:var(--danger); }

/* ═══ BUY CARD ═══ */
.pdp-buy-card { padding:20px; border-radius:20px; background:var(--glass); border:1px solid var(--glass-border); box-shadow:0 20px 60px rgba(0,0,0,0.45); position:sticky; top:88px; }
.pdp-buy-features { display:flex; flex-direction:column; gap:8px; margin-top:16px; padding-top:16px; border-top:1px solid var(--glass-border); }
.pdp-buy-feature-row { display:flex; align-items:center; gap:8px; font-size:.78rem; color:var(--text2); font-weight:500; }
.pdp-detail-table { display:flex; flex-direction:column; gap:0; margin-top:16px; padding-top:16px; border-top:1px solid var(--glass-border); }
.pdp-detail-row { display:flex; justify-content:space-between; align-items:center; padding:8px 0; border-bottom:1px solid rgba(255,255,255,0.04); font-size:.78rem; }
.pdp-detail-row:last-child { border-bottom:none; }
.pdp-detail-key { color:var(--text2); font-weight:500; }
.pdp-detail-val { color:var(--text); font-weight:700; }
.pdp-guarantee { margin-top:16px; padding:14px; border-radius:var(--radius); background:rgba(16,217,142,0.06); border:1px solid rgba(16,217,142,0.15); font-size:.82rem; color:var(--text); }

/* ═══ REVIEWS ═══ */
.pdp-reviews-summary { display:flex; align-items:center; gap:20px; margin-bottom:20px; flex-wrap:wrap; }
.pdp-reviews-summary-left { display:flex; flex-direction:column; align-items:center; gap:4px; }
.pdp-reviews-avg { font-size:2.5rem; font-weight:900; color:var(--text); }
.pdp-reviews-stars { display:flex; gap:2px; }
.pdp-reviews-count { font-size:.78rem; color:var(--text2); }
.pdp-reviews-bars { flex:1; display:flex; flex-direction:column; gap:4px; min-width:200px; }
.pdp-reviews-bar-row { display:flex; align-items:center; gap:8px; font-size:.72rem; }
.pdp-reviews-bar-label { width:30px; color:var(--text2); font-weight:600; }
.pdp-reviews-bar-track { flex:1; height:6px; border-radius:3px; background:var(--bg3); overflow:hidden; }
.pdp-reviews-bar-fill { height:100%; border-radius:3px; background:var(--gold); transition:width .5s ease; }
.pdp-reviews-bar-count { width:24px; color:var(--text2); font-weight:600; text-align:right; }
.pdp-review-card { padding:16px; border-radius:var(--radius); background:var(--glass); border:1px solid var(--glass-border); margin-bottom:10px; }
.pdp-review-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:8px; }
.pdp-review-user { display:flex; align-items:center; gap:8px; }
.pdp-review-avatar { width:32px; height:32px; border-radius:50%; background:var(--grad-primary); display:flex; align-items:center; justify-content:center; font-size:.85rem; font-weight:800; color:#fff; }
.pdp-review-name { font-size:.82rem; font-weight:700; color:var(--text); }
.pdp-review-loc { font-size:.68rem; color:var(--text2); }
.pdp-review-stars { display:flex; gap:1px; }
.pdp-review-text { font-size:.82rem; line-height:1.6; color:var(--text2); margin-bottom:6px; }
.pdp-review-date { font-size:.68rem; color:var(--text3); }
.pdp-review-verified { display:inline-flex; align-items:center; gap:4px; font-size:.62rem; font-weight:700; color:var(--success); padding:2px 8px; border-radius:12px; background:rgba(16,217,142,0.1); border:1px solid rgba(16,217,142,0.2); }
.pdp-rev-login-prompt { padding:14px; border-radius:var(--radius); background:var(--glass); border:1px solid var(--glass-border); font-size:.82rem; color:var(--text2); text-align:center; }
.pdp-rev-login-prompt a { color:var(--accent); cursor:pointer; font-weight:700; text-decoration:underline; }
.pdp-review-form { padding:16px; border-radius:var(--radius); background:var(--glass); border:1px solid var(--glass-border); }
.pdp-review-form-title { font-size:.88rem; font-weight:700; margin-bottom:12px; color:var(--text); }
.pdp-star-selector { display:flex; gap:4px; margin-bottom:12px; }
.pdp-star-selector button { background:none; border:none; cursor:pointer; font-size:1.5rem; color:var(--text3); transition:color .15s; }
.pdp-star-selector button.active { color:var(--gold); }
.pdp-review-textarea { width:100%; min-height:80px; padding:10px 12px; border-radius:var(--radius); background:var(--bg3); border:1px solid var(--glass-border); color:var(--text); font-family:var(--font-body); font-size:.82rem; resize:vertical; }
.pdp-review-submit-btn { margin-top:10px; padding:10px 20px; border-radius:var(--radius); background:var(--grad-primary); border:none; color:#fff; font-weight:700; font-size:.82rem; cursor:pointer; display:flex; align-items:center; gap:6px; transition:opacity .2s; }
.pdp-review-submit-btn:hover { opacity:.9; }
.pdp-review-submit-btn:disabled { opacity:.5; cursor:not-allowed; }

/* ═══ RELATED ═══ */
.pdp-related-track { display:flex; gap:12px; overflow-x:auto; padding-bottom:8px; -webkit-overflow-scrolling:touch; scrollbar-width:thin; scrollbar-color:var(--glass-border) transparent; }
.pdp-related-track::-webkit-scrollbar { height:4px; }
.pdp-related-track::-webkit-scrollbar-thumb { background:var(--glass-border); border-radius:2px; }

/* ═══ BOTTOM CTA ═══ */
.pdp-bottom-cta { position:relative; overflow:hidden; border-radius:var(--radius-lg); background:linear-gradient(135deg,rgba(61,142,248,0.08),rgba(0,200,232,0.04)); border:1px solid var(--glass-border); padding:32px 24px; text-align:center; margin-top:10px; }
.pdp-cta-orb { position:absolute; width:300px; height:300px; border-radius:50%; background:rgba(61,142,248,0.08); filter:blur(60px); top:-150px; left:50%; transform:translateX(-50%); pointer-events:none; }
.pdp-cta-content { position:relative; z-index:1; }
.pdp-cta-icon { font-size:2.5rem; margin-bottom:8px; }
.pdp-cta-title { font-family:var(--font-display); font-size:1.4rem; font-weight:800; color:var(--text); margin-bottom:6px; }
.pdp-cta-sub { font-size:.85rem; color:var(--text2); margin-bottom:16px; }
.pdp-cta-btn { padding:13px 32px; border-radius:var(--radius); background:var(--grad-primary); border:none; color:#fff; font-size:.92rem; font-weight:800; cursor:pointer; transition:opacity .2s, transform .1s; -webkit-tap-highlight-color:transparent; }
.pdp-cta-btn:hover { opacity:.9; }
.pdp-cta-btn:active { transform:scale(.98); }

/* ═══ STICKY BAR ═══ */
.pdp-sticky-bar {
  position:fixed; bottom:0; left:0; right:0; z-index:9000;
  background:var(--bg2); border-top:1px solid var(--glass-border);
  backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px);
  transform:translateY(100%); transition:transform .3s cubic-bezier(0.4,0,0.2,1);
  padding:10px 16px; padding-bottom:max(10px,env(safe-area-inset-bottom));
}
.pdp-sticky-bar.visible { transform:translateY(0); }
.pdp-sticky-inner { display:flex; align-items:center; justify-content:space-between; gap:12px; max-width:600px; margin:0 auto; }
.pdp-sticky-info { flex:1; min-width:0; }
.pdp-sticky-title { font-size:.78rem; font-weight:700; color:var(--text); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.pdp-sticky-price { font-size:.9rem; font-weight:800; color:var(--accent); }
.pdp-sticky-actions { display:flex; gap:8px; flex-shrink:0; }
.pdp-sticky-wish { width:40px; height:40px; border-radius:var(--radius); background:var(--glass); border:1px solid var(--glass-border); color:var(--text2); font-size:1rem; cursor:pointer; display:flex; align-items:center; justify-content:center; -webkit-tap-highlight-color:transparent; }
.pdp-sticky-buy { padding:10px 20px; border-radius:var(--radius); background:var(--grad-primary); border:none; color:#fff; font-size:.85rem; font-weight:800; cursor:pointer; white-space:nowrap; -webkit-tap-highlight-color:transparent; transition:opacity .2s; }
.pdp-sticky-buy:hover { opacity:.9; }

/* ═══ ZOOM OVERLAY ═══ */
.pdp-zoom-lock { overflow:hidden; }
.pdp-zoom-overlay { position:fixed; inset:0; z-index:10000; display:flex; align-items:center; justify-content:center; background:rgba(0,0,0,0.92); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px); animation:pdpFadeIn .2s ease; }
.pdp-zoom-overlay.pdp-zoom-closing { animation:pdpFadeOut .15s ease forwards; }
@keyframes pdpFadeIn { from{opacity:0} to{opacity:1} }
@keyframes pdpFadeOut { from{opacity:1} to{opacity:0} }
.pdp-zoom-bg { position:absolute; inset:0; }
.pdp-zoom-close { position:absolute; top:16px; right:16px; width:40px; height:40px; border-radius:50%; background:var(--glass); border:1px solid var(--glass-border); color:var(--text); font-size:1.2rem; cursor:pointer; z-index:10; display:flex; align-items:center; justify-content:center; }
.pdp-zoom-content { position:relative; width:100%; height:100%; display:flex; align-items:center; justify-content:center; overflow:hidden; touch-action:none; }
.pdp-zoom-img { max-width:90%; max-height:90%; border-radius:8px; box-shadow:0 20px 80px rgba(0,0,0,0.5); user-select:none; -webkit-user-drag:none; -webkit-user-select:none; }

/* ═══ LIGHT MODE ═══ */
body.light .pdp-buy-card { box-shadow:0 24px 64px rgba(10,16,34,0.12); }
body.light .pdp-cover-card { box-shadow:0 20px 60px rgba(10,16,34,0.15); }
body.light .pdp-desc-wrap:not(.expanded)::after { background:linear-gradient(transparent,var(--bg)); }

/* ═══ SKELETON ═══ */
.pdp-skeleton { background:var(--glass); border-radius:var(--radius); animation:pdpSkeletonPulse 1.4s ease-in-out infinite; }
@keyframes pdpSkeletonPulse { 0%,100%{opacity:.5} 50%{opacity:1} }

/* ═══ RESPONSIVE ═══ */
@media (max-width:767px) {
  .pdp-preview-sticky { height:calc(100vh - 88px - 24px); height:calc(100dvh - 88px - 24px); max-height:600px; }
  .pdp-bottom-cta { padding:24px 16px; }
  .pdp-cta-title { font-size:1.15rem; }
  .pdp-info-chips { gap:8px; }
  .pdp-info-chip { min-width:70px; padding:8px 10px; }
  .pdp-trust-grid { grid-template-columns:repeat(3,1fr); }
  .pdp-features-grid { grid-template-columns:repeat(2,1fr); }
  .pdp-outcomes-grid { grid-template-columns:1fr; }
}
@media (min-width:768px) and (max-width:1023px) {
  .pdp-cover-card { max-width:260px; }
  .pdp-features-grid { grid-template-columns:repeat(3,1fr); }
  .pdp-trust-grid { grid-template-columns:repeat(4,1fr); }
}
@media (min-width:1024px) {
  .pdp-features-grid { grid-template-columns:repeat(3,1fr); }
  .pdp-trust-grid { grid-template-columns:repeat(5,1fr); }
}