/* Product detail page (functions/product/[slug].js) */

.pdp-wrap { max-width: var(--maxw); margin: 0 auto; padding: clamp(1.5rem, 4vw, 3rem) var(--gutter) 2rem; }
.pdp-layout { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
@media (max-width: 900px) { .pdp-layout { grid-template-columns: 1fr; } }

.pdp-media { position: sticky; top: calc(var(--nav-h) + 1.5rem); }
@media (max-width: 900px) { .pdp-media { position: static; } }
.pdp-stage {
  position: relative; border-radius: var(--radius-xl); overflow: hidden;
  border: 1px solid var(--border);
  background:
    radial-gradient(ellipse 70% 60% at 50% 45%, rgba(142,16,24,0.45), transparent 70%),
    linear-gradient(180deg, #120a0a, #070505);
  aspect-ratio: 1 / 1.02;
}
.pdp-stage-glow {
  position: absolute; inset: 0; z-index: 0;
  background-image: linear-gradient(rgba(255,228,220,0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,228,220,0.045) 1px, transparent 1px);
  background-size: 32px 32px;
  -webkit-mask-image: radial-gradient(ellipse at center, #000 10%, transparent 70%);
  mask-image: radial-gradient(ellipse at center, #000 10%, transparent 70%);
}
.pdp-gallery-main {
  position: relative; z-index: 1;
  width: 100%; height: 100%; object-fit: contain; display: block;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  filter: drop-shadow(0 30px 40px rgba(0,0,0,0.65));
  transition: opacity 0.35s var(--ease), transform 0.6s var(--ease);
}
.pdp-gallery-main.swap { opacity: 0; transform: scale(0.97); }
.pdp-thumbs { display: flex; gap: 0.6rem; margin-top: 0.85rem; flex-wrap: wrap; }
.pdp-thumb {
  width: 72px; height: 72px; padding: 0.35rem; border-radius: 14px; cursor: pointer;
  border: 1px solid var(--border); background: #0b0707; opacity: 0.6;
  transition: opacity 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.35s var(--ease);
}
.pdp-thumb img { width: 100%; height: 100%; object-fit: contain; display: block; }
.pdp-thumb:hover { opacity: 1; transform: translateY(-2px); }
.pdp-thumb.active { opacity: 1; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255,45,61,0.15); }

.pdp-tags { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1.1rem; }
.pdp-status-note { display: block; flex-basis: 100%; color: var(--text-muted); font-size: 0.86rem; margin-top: 0.15rem; }
.pdp-status { font-size: 0.78rem; padding: 0.35rem 0.75rem; }
.pdp-cat-chip { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted); border: 1px solid var(--border); border-radius: 999px; padding: 0.38rem 0.75rem; transition: color 0.2s, border-color 0.2s; }
.pdp-cat-chip:hover { color: var(--text); border-color: var(--border-strong); }
.pdp-pitch { color: var(--text-muted); line-height: 1.7; margin: 0 0 1.75rem; max-width: 52ch; }
.pdp-from { margin: -0.4rem 0 1rem; font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text); }
.tab-panel h3 { color: var(--text); font-family: var(--font-display); font-stretch: 108%; font-size: 1.05rem; letter-spacing: -0.01em; margin: 1.75rem 0 0.4rem; }
.tab-panel h3:first-child { margin-top: 0; }
.tab-panel a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
/* Keep price and Buy within reach on phones: the stage no longer fills a whole screen. */
@media (max-width: 900px) { .pdp-stage { aspect-ratio: auto; height: min(62vw, 42vh); } }
.pdp-sold { color: var(--text-dim); font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; }

.pick-label { display: flex; justify-content: space-between; align-items: baseline; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 0.75rem; }
.variant-picker { display: flex; flex-direction: column; gap: 0.55rem; margin-bottom: 1.25rem; }
.variant-option {
  position: relative;
  display: flex; align-items: center; gap: 0.9rem; width: 100%; text-align: left;
  border: 1px solid var(--border); border-radius: 16px;
  background: rgba(255,236,230,0.02);
  padding: 0.95rem 1.1rem; cursor: pointer; color: var(--text); font: inherit;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s;
}
.variant-option:hover:not(.disabled) { border-color: var(--border-strong); background: rgba(255,236,230,0.045); }
.variant-option:active:not(.disabled) { transform: scale(0.99); }
.variant-option.selected {
  border-color: rgba(255,45,61,0.65);
  background: linear-gradient(90deg, rgba(255,45,61,0.12), rgba(255,45,61,0.03));
  box-shadow: 0 10px 30px -18px var(--accent-glow), inset 0 0 0 1px rgba(255,45,61,0.25);
}
.variant-option.disabled { opacity: 0.45; cursor: not-allowed; }
.variant-option .radio { width: 18px; height: 18px; border-radius: 50%; border: 1.5px solid var(--border-strong); flex-shrink: 0; display: grid; place-items: center; transition: border-color 0.25s; }
.variant-option .radio::after { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); transform: scale(0); transition: transform 0.35s var(--ease-out-back); box-shadow: 0 0 8px var(--accent); }
.variant-option.selected .radio { border-color: var(--accent); }
.variant-option.selected .radio::after { transform: scale(1); }
.variant-option .v-main { flex: 1; display: flex; flex-direction: column; gap: 0.15rem; min-width: 0; }
.variant-option .label { font-weight: 600; display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.variant-option .v-sub { display: flex; gap: 0.75rem; }
.variant-option .stock-note, .variant-option .per-day { font-size: 0.75rem; color: var(--text-dim); font-family: var(--font-mono); letter-spacing: 0.04em; }
.best-tag { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: #9ff0c4; background: rgba(47,210,122,0.14); border: 1px solid rgba(47,210,122,0.35); padding: 0.15rem 0.45rem; border-radius: 999px; font-weight: 500; }
.variant-option .price-wrap { text-align: right; white-space: nowrap; }
.variant-option .price { font-weight: 700; font-size: 1.05rem; font-variant-numeric: tabular-nums; }
.variant-option.selected .price { color: #fff; }
.variant-option .price-slash { color: var(--text-dim); text-decoration: line-through; font-size: 0.82rem; margin-right: 0.4rem; }

.buy-row { display: flex; gap: 0.6rem; align-items: stretch; margin-bottom: 0.75rem; }
.qty-controls { display: flex; align-items: center; border: 1px solid var(--border-strong); border-radius: 999px; overflow: hidden; flex-shrink: 0; background: var(--surface); }
.qty-controls button { background: none; border: none; color: var(--text); width: 44px; height: 54px; cursor: pointer; display: grid; place-items: center; transition: background 0.2s; }
.qty-controls button .icon { width: 16px; height: 16px; }
.qty-controls button:hover { background: var(--surface-hover); }
.qty-controls input { width: 34px; text-align: center; border: none; background: none; color: var(--text); font: inherit; font-weight: 600; -moz-appearance: textfield; }
.qty-controls input::-webkit-outer-spin-button, .qty-controls input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
#buy-btn { flex: 1; min-height: 56px; font-size: 1rem; }
#buy-btn .total { font-variant-numeric: tabular-nums; opacity: 0.92; padding-left: 0.7rem; margin-left: 0.1rem; border-left: 1px solid rgba(255,255,255,0.3); }
.btn .spinner { width: 16px; height: 16px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.35); border-top-color: #fff; animation: spin 0.7s linear infinite; }
.volume-note { font-size: 0.82rem; color: var(--success); margin: 0 0 0.75rem; }
.oos-note { font-size: 0.88rem; color: var(--text-muted); background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 0.85rem 1rem; margin-bottom: 1rem; }

.assurances { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; margin-top: 1.25rem; }
.assurance { display: flex; flex-direction: column; gap: 0.45rem; padding: 0.9rem; border: 1px solid var(--border); border-radius: 14px; background: rgba(255,236,230,0.02); font-size: 0.8rem; color: var(--text-muted); line-height: 1.35; }
.assurance .icon { color: var(--accent); width: 18px; height: 18px; }
.assurance b { color: var(--text); font-weight: 600; font-size: 0.84rem; }
@media (max-width: 480px) { .assurances { grid-template-columns: 1fr; } .assurance { flex-direction: row; align-items: center; } }
.pdp-help { margin-top: 1.1rem; font-size: 0.86rem; color: var(--text-dim); }
.pdp-help a { color: var(--text-muted); text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 3px; }
.pdp-help a:hover { color: var(--text); }

/* Tabs */
.pdp-tabs { max-width: var(--maxw); margin: 0 auto; padding: clamp(3rem, 7vw, 5rem) var(--gutter) 1rem; }
.tab-bar { position: relative; display: flex; gap: 0.25rem; border-bottom: 1px solid var(--border); margin-bottom: 2rem; overflow-x: auto; scrollbar-width: none; }
.tab-btn { position: relative; background: none; border: none; color: var(--text-muted); font-size: 0.95rem; font-weight: 600; padding: 0.95rem 1.1rem; cursor: pointer; white-space: nowrap; transition: color 0.2s; }
.tab-btn:hover, .tab-btn.active { color: var(--text); }
.tab-ink { position: absolute; bottom: 0; left: 0; width: 100px; height: 2px; background: var(--accent); box-shadow: 0 0 12px var(--accent); transform-origin: 0 0; transform: scaleX(0); transition: transform 0.5s var(--ease); }
.tab-panel { display: none; color: var(--text-muted); line-height: 1.75; max-width: 980px; }
.tab-panel.active { display: block; animation: card-in 0.6s var(--ease) both; }
.tab-panel p { margin: 0 0 0.35rem; }
.tab-panel strong, .tab-panel b { color: var(--text); }
.tab-panel span[style*="white-space"], .tab-panel strong[style*="white-space"] { white-space: normal !important; }
.tab-panel .feat-h { color: var(--text); font-family: var(--font-display); font-stretch: 108%; font-weight: 700; font-size: 1.15rem; letter-spacing: -0.02em; margin: 2rem 0 0.85rem; }
.tab-panel .feat-h:first-child { margin-top: 0; }
.tab-panel .feat-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 0.45rem; margin: 0 0 0.5rem; }
.tab-panel .feat-li { display: flex; align-items: flex-start; gap: 0.65rem; margin: 0; padding: 0.65rem 0.9rem; border: 1px solid var(--border); border-radius: 12px; background: rgba(255,236,230,0.02); color: var(--text); font-size: 0.9rem; line-height: 1.45; transition: border-color 0.25s, background 0.25s; }
.tab-panel .feat-li:hover { border-color: rgba(255,45,61,0.3); background: rgba(255,45,61,0.04); }
.tab-panel .feat-li::before { content: ''; flex-shrink: 0; width: 6px; height: 6px; margin-top: 0.5em; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); }

.pdp-faq { max-width: var(--maxw); margin: 0 auto; padding: clamp(3rem, 7vw, 5rem) var(--gutter); }

/* Mobile sticky buy bar */
.buybar {
  position: fixed; left: 0.75rem; right: 0.75rem; bottom: 0.75rem; z-index: 45;
  display: none; align-items: center; gap: 0.75rem;
  padding: 0.55rem 0.55rem 0.55rem 1.2rem; border-radius: 999px;
  background: rgba(14, 9, 9, 0.88); border: 1px solid var(--border-strong);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 20px 50px -15px rgba(0,0,0,0.9);
  transform: translateY(140%); transition: transform 0.5s var(--ease);
}
.buybar.show { transform: none; }
.buybar .bb-info { flex: 1; min-width: 0; line-height: 1.2; }
.buybar .bb-info b { display: block; font-size: 1.02rem; font-variant-numeric: tabular-nums; }
.buybar .bb-info span { font-size: 0.75rem; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
.buybar .btn { min-height: 46px; padding: 0.7rem 1.4rem; }
@media (max-width: 900px) { .buybar { display: flex; } }
@media (max-width: 560px) {
  .tab-panel .feat-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tab-panel .feat-li { font-size: 0.82rem; padding: 0.55rem 0.7rem; }
}