:root {
  --primary: #0B2545;
  --primary-2: #123A63;
  --accent: #FF6A00;
  --accent-dark: #E65A00;
  --dark: #111827;
  --text: #374151;
  --muted: #6B7280;
  --light: #F5F7FA;
  --white: #FFFFFF;
  --border: #E5E7EB;
  --shadow: 0 16px 40px rgba(11, 37, 69, 0.12);
  --radius: 16px;
}

/* Product Hero */
.pd-hero { display: flex; gap: 40px; margin-bottom: 40px; align-items: flex-start; }
.pd-gallery { flex: 0 0 55%; max-width: 55%; }
.pd-main-img { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; height: 500px; display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow); }
.pd-main-img img { max-height: 100%; object-fit: contain; }
.pd-thumbs { display: flex; gap: 12px; margin-top: 16px; }
.pd-thumb { flex: 0 0 100px; height: 75px; border: 2px solid var(--border); border-radius: 8px; cursor: pointer; padding: 5px; background: #fff; overflow: hidden; }
.pd-thumb.active { border-color: var(--accent); }
.pd-thumb img { width: 100%; height: 100%; object-fit: contain; }

.pd-info { flex: 0 0 45%; max-width: 45%; }
.pd-badge { background: #FFF4EB; color: var(--accent); padding: 6px 14px; border-radius: 999px; font-size: 12px; font-weight: 900; display: inline-block; text-transform: uppercase; margin-bottom: 15px; }
.pd-info h1 { font-size: 32px; color: var(--dark); line-height: 1.2; margin-bottom: 8px; }
.pd-subtitle { font-size: 18px; color: var(--muted); margin-bottom: 12px; }
.pd-model { color: var(--accent); font-weight: 900; font-size: 18px; margin-bottom: 20px; }
.pd-intro { color: var(--text); font-size: 15px; margin-bottom: 24px; }
.pd-features { list-style: none; margin-bottom: 30px; }
.pd-features li { position: relative; padding-left: 28px; margin-bottom: 12px; font-weight: 700; color: var(--dark); }
.pd-features li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 900; }
.pd-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
.pd-quote-tip { font-size: 13px; color: var(--muted); background: #f9fafb; padding: 12px; border-radius: 8px; border-left: 4px solid var(--accent); }

/* Quick Config */
.pd-quick-config { display: grid; grid-template-columns: repeat(5, 1fr); gap: 15px; margin-bottom: 40px; }
.pd-config-card { background: #fff; border: 1px solid var(--border); padding: 20px 10px; border-radius: 12px; text-align: center; }
.pd-config-card strong { display: block; font-size: 13px; color: var(--muted); text-transform: uppercase; margin-bottom: 8px; }
.pd-config-card span { font-size: 15px; color: var(--dark); font-weight: 800; }

/* Applications */
.pd-applications { display: grid; grid-template-columns: repeat(6, 1fr); gap: 15px; }
.pd-app-card { background: #fff; border: 1px solid var(--border); padding: 20px; border-radius: 12px; text-align: center; transition: .25s ease; }
.pd-app-card:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: var(--shadow); }
.pd-app-icon { font-size: 32px; margin-bottom: 10px; }
.pd-app-card h3 { font-size: 14px; color: var(--dark); }
.pd-note-box { margin-top: 20px; font-size: 14px; color: #8b3f0a; background: #fff7f2; padding: 15px; border-radius: 8px; border: 1px solid #ffd4ba; }

/* Spec Table */
.pd-spec-table { width: 100%; border-collapse: collapse; border-radius: 12px; overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow); }
.pd-spec-table tr:nth-child(even) { background: #f9fafb; }
.pd-spec-table td { padding: 15px 20px; border-bottom: 1px solid var(--border); font-size: 14px; }
.pd-spec-table td:first-child { font-weight: 800; color: var(--dark); width: 35%; background: #f8fafc; }
.pd-spec-table td:last-child { color: var(--text); }

/* Optional */
.pd-optional { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; list-style: none; }
.pd-optional li { background: #fff; border: 1px solid var(--border); padding: 15px 20px; border-radius: 10px; display: flex; flex-direction: column; gap: 5px; }
.pd-optional li strong { color: var(--dark); font-size: 16px; }
.pd-optional li span { color: var(--muted); font-size: 13px; }

/* Quote Steps */
.pd-quote-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.pd-step { text-align: center; position: relative; }
.pd-step-num { width: 40px; height: 40px; background: var(--accent); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 15px; font-weight: 900; font-size: 18px; box-shadow: 0 5px 15px rgba(255,106,0,.3); }
.pd-step h3 { font-size: 16px; color: var(--dark); margin-bottom: 8px; }
.pd-step p { font-size: 13px; color: var(--muted); }

/* FAQ */
.pd-faq { max-width: 900px; margin: 0 auto; }
.pd-faq-item { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 20px; margin-bottom: 15px; }
.pd-faq-item h3 { font-size: 17px; color: var(--dark); margin-bottom: 10px; display: flex; align-items: flex-start; gap: 10px; }
.pd-faq-item h3::before { content: "Q:"; color: var(--accent); font-weight: 900; }
.pd-faq-item p { color: var(--muted); font-size: 14px; padding-left: 28px; line-height: 1.6; }

/* Related */
.pd-related { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pd-related-card { background: #fff; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; transition: .25s ease; text-align: center; }
.pd-related-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--accent); }
.pd-related-img { height: 200px; padding: 15px; display: flex; align-items: center; justify-content: center; background: #fff; }
.pd-related-img img { max-height: 100%; object-fit: contain; }
.pd-related-card h3 { padding: 15px; font-size: 16px; color: var(--dark); border-top: 1px solid var(--border); }

/* Bag Styles & Working & Bottom Inquiry (Placeholders) */
.pd-bag-styles { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 20px; }
.pd-working { margin-bottom: 40px; }
.pd-bottom-inquiry { background: var(--primary); color: #fff; padding: 60px 0; text-align: center; border-radius: var(--radius); }

@media (max-width: 1024px) {
  .pd-hero { flex-direction: column; }
  .pd-gallery, .pd-info { flex: 0 0 100%; max-width: 100%; }
}

@media (max-width: 768px) {
  .pd-main-img { height: 350px; }
  .pd-quick-config { grid-template-columns: repeat(2, 1fr); }
  .pd-applications { grid-template-columns: repeat(3, 1fr); }
  .pd-related { grid-template-columns: repeat(2, 1fr); }
  .pd-optional { grid-template-columns: 1fr; }
  .pd-quote-steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .pd-applications { grid-template-columns: repeat(2, 1fr); }
  .pd-related { grid-template-columns: 1fr; }
}