.product-page { padding: 28px 0 56px; }

  /* ── Gallery ── */
  .gallery-wrap {
    position: sticky; top: 84px;
    background: var(--white); border-radius: var(--r);
    border: 1px solid var(--border); padding: 16px;
    box-shadow: var(--shadow-sm);
  }
  .gallery-main {
    border-radius: var(--r-sm); background: var(--surface);
    display: flex; align-items: center; justify-content: center;
    height: 360px; margin-bottom: 12px; overflow: hidden;
  }
  .gallery-main img {
    max-height: 340px; max-width: 100%; object-fit: contain; padding: 16px;
    transition: opacity .18s ease;
  }
  .gallery-thumbs { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }

  /* ── Info panel ── */
  .info-panel {
    background: var(--white); border-radius: var(--r);
    border: 1px solid var(--border); padding: 24px;
    box-shadow: var(--shadow-sm);
  }
  .product-title { font-size: 1.35rem; font-weight: 800; color: var(--dark); letter-spacing: -.02em; line-height: 1.25; }
  .product-sku   { font-size: .78rem; color: var(--muted); font-family: monospace; }

  /* ── Price section ── */
  .price-section {
    background: var(--brand-light); border: 1px solid var(--brand-border);
    border-radius: var(--r); padding: 14px 16px; margin-bottom: 16px;
  }
  .price-main {
    font-size: 1.9rem; font-weight: 800; color: var(--accent);
    letter-spacing: -.03em; line-height: 1;
    transition: color .2s, font-size .2s;
  }
  .price-main.muted { font-size: 1rem; color: var(--muted); font-weight: 500; }
  .stock-in {
    display: inline-flex; align-items: center; gap: 5px;
    background: #DCFCE7; color: #15803D; border: 1px solid #BBF7D0;
    border-radius: var(--r-full); padding: 4px 12px; font-size: .78rem; font-weight: 600;
  }
  .stock-limited {
    display: inline-flex; align-items: center; gap: 5px;
    background: #FEF9C3; color: #A16207; border: 1px solid #FDE68A;
    border-radius: var(--r-full); padding: 4px 12px; font-size: .78rem; font-weight: 600;
  }
  .stock-out {
    display: inline-flex; align-items: center; gap: 5px;
    background: #FEE2E2; color: #B91C1C; border: 1px solid #FCA5A5;
    border-radius: var(--r-full); padding: 4px 12px; font-size: .78rem; font-weight: 600;
  }
  .selected-summary {
    font-size: .75rem; color: var(--brand); font-weight: 600;
    margin-top: 6px; display: none;
  }

  /* ── Specs ── */
  .specs-box {
    background: var(--surface); border-radius: var(--r-sm);
    border: 1px solid var(--border); padding: 14px; margin-bottom: 16px;
  }
  .specs-label {
    font-size: .68rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: .1em; color: var(--brand); margin-bottom: 10px;
  }
  .summary-quote {
    border-left: 3px solid var(--brand); padding-left: 14px;
    font-style: italic; color: var(--muted); line-height: 1.65;
    font-size: .875rem; margin-bottom: 16px;
  }

  /* ── Variation selector ── */
  .variation-section {
    border: 1px solid var(--border); border-radius: var(--r);
    padding: 16px; margin-bottom: 16px; background: var(--white);
  }
  .variation-section-title {
    font-size: .72rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: .07em; color: var(--muted); margin-bottom: 14px;
    display: flex; align-items: center; gap: 6px;
  }
  .attr-group { margin-bottom: 14px; }
  .attr-group:last-child { margin-bottom: 0; }
  .attr-label {
    font-size: .78rem; font-weight: 700; color: var(--text);
    margin-bottom: 8px; display: flex; align-items: center; gap: 6px;
  }
  .attr-label .selected-val {
    font-weight: 600; color: var(--brand); background: var(--brand-light);
    border-radius: var(--r-full); padding: 1px 8px; font-size: .72rem;
  }
  .attr-options { display: flex; flex-wrap: wrap; gap: 7px; }
  .attr-btn {
    border: 1.5px solid var(--border); background: var(--white); color: var(--text);
    border-radius: var(--r-sm); padding: 7px 16px;
    font-size: .82rem; font-weight: 500; cursor: pointer;
    font-family: 'Inter', sans-serif;
    transition: border-color .15s, background .15s, color .15s, opacity .15s;
    position: relative; white-space: nowrap;
  }
  .attr-btn:hover:not(:disabled) { border-color: var(--brand); color: var(--brand); }
  .attr-btn.selected {
    background: var(--brand); border-color: var(--brand);
    color: #fff; font-weight: 600;
    box-shadow: 0 2px 8px rgba(0,95,115,.25);
  }
  .attr-btn:disabled {
    opacity: .3; cursor: not-allowed;
    text-decoration: line-through;
  }

  /* ── Cart area ── */
  .qty-group { display: flex; align-items: stretch; }
  .qty-btn {
    width: 38px; border: 1.5px solid var(--border); background: var(--surface);
    color: var(--text); font-size: 1.1rem; font-weight: 600; cursor: pointer;
    transition: background .15s; display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
  }
  .qty-btn:first-child { border-radius: var(--r-sm) 0 0 var(--r-sm); }
  .qty-btn:last-child  { border-radius: 0 var(--r-sm) var(--r-sm) 0; border-left: none; }
  .qty-btn:hover { background: var(--brand-light); border-color: var(--brand-border); }
  .qty-input {
    width: 52px; border: 1.5px solid var(--border); border-left: none; border-right: none;
    text-align: center; font-weight: 700; font-size: .95rem;
    outline: none; font-family: 'Inter', sans-serif; background: var(--white);
  }
  .btn-cart {
    flex: 1; background: var(--brand); color: #fff; border: none;
    border-radius: var(--r-full); font-weight: 700; font-size: .95rem;
    padding: 0 20px; cursor: pointer; font-family: 'Inter', sans-serif;
    transition: background .15s, transform .1s, box-shadow .15s;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    min-height: 46px;
  }
  .btn-cart:hover:not(:disabled) {
    background: var(--brand-mid);
    box-shadow: 0 4px 14px rgba(0,95,115,.3); transform: translateY(-1px);
  }
  .btn-cart:disabled {
    background: #CBD5E1; cursor: not-allowed; transform: none; box-shadow: none;
  }
  .btn-wa {
    width: 100%; background: #E8F9F0; color: #1B7A3E;
    border: 1.5px solid #B7E5CE; border-radius: var(--r-full);
    padding: 11px; font-weight: 700; font-size: .875rem;
    cursor: pointer; font-family: 'Inter', sans-serif;
    transition: background .15s, transform .1s;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    text-decoration: none;
  }
  .btn-wa:hover { background: #D1F5E0; color: #1B7A3E; transform: translateY(-1px); }

  .btn-wa-ask {
    width: 100%; background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    color: #fff; border: none; border-radius: var(--r-full);
    padding: 12px; font-weight: 700; font-size: .875rem;
    cursor: pointer; font-family: 'Inter', sans-serif;
    transition: transform .1s, box-shadow .15s, filter .15s;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(37,211,102,.28);
  }
  .btn-wa-ask:hover {
    color: #fff; transform: translateY(-1px); filter: brightness(1.05);
    box-shadow: 0 6px 18px rgba(37,211,102,.38);
  }

  .trust-badges {
    display: flex; flex-wrap: wrap; gap: 14px;
    padding: 14px 0; border-top: 1px solid var(--border);
    margin-top: 16px;
  }
  .trust-badge { display: flex; align-items: center; gap: 6px; font-size: .78rem; color: var(--muted); }

  /* ── Tabs ── */
  .tabs-panel {
    background: var(--white); border-radius: var(--r);
    border: 1px solid var(--border); box-shadow: var(--shadow-sm);
    overflow: hidden; margin-top: 24px;
  }
  .nav-tabs { border-bottom: 1px solid var(--border); padding: 0 16px; gap: 2px; }
  .nav-tabs .nav-link {
    border: none; border-radius: 0; padding: 13px 16px;
    font-size: .875rem; font-weight: 600; color: var(--muted);
    border-bottom: 2px solid transparent; margin-bottom: -1px;
    transition: color .15s, border-color .15s;
  }
  .nav-tabs .nav-link:hover { color: var(--brand); background: none; }
  .nav-tabs .nav-link.active { color: var(--brand); border-bottom-color: var(--brand); background: none; }
  .tab-content { padding: 24px; }
  .desc-body { max-width: 820px; line-height: 1.8; white-space: pre-line; }

  /* ── Related ── */
  .related-section { margin-top: 48px; }

  @media (max-width: 991px) {
    .gallery-wrap { position: static; margin-bottom: 16px; }
    .gallery-main { height: 260px; }
    .info-panel { padding: 18px; }
    .product-title { font-size: 1.1rem; }
    .price-main { font-size: 1.55rem; }
  }