/* ═══════════════════════════════════════════════════════
   BAOLIAN Product Detail Page - Omron-inspired Design
   Theme: Black/Red/White | Responsive | BLPD prefix
   ═══════════════════════════════════════════════════════ */

:root {
  --blpd-black: #0a0a0a;
  --blpd-dark: #1a1a1a;
  --blpd-gray: #2a2a2a;
  --blpd-mid: #d7d7dc;
  --blpd-light: #f4f4f5;
  --blpd-white: #ffffff;
  --blpd-red: #cc0000;
  --blpd-red-hover: #e60000;
  --blpd-radius: 4px;
  --blpd-transition: 0.2s ease;
}

/* ═══ Container ═══ */
.blpd-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.blpd-section-title {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 32px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--blpd-red);
  display: inline-block;
}

/* ═══ Breadcrumb ═══ */
.blpd-breadcrumb {
  padding: 24px 0 16px;
  font-size: 15px;
  color: var(--blpd-light);
  margin-top: 0;
  position: relative;
  z-index: 1;
}
.blpd-breadcrumb a {
  color: var(--blpd-light);
  text-decoration: none;
}
.blpd-breadcrumb a:hover { color: #fff; }
.blpd-breadcrumb span { margin: 0 6px; }

/* ═══ Hero Section ═══ */
.blpd-hero {
  background: var(--blpd-black);
  padding: 110px 0 60px;   /* 110px top = fixed header height + breadcrumb space */
}
.blpd-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

/* Gallery */
.blpd-gallery { position: relative; }
.blpd-main-image {
  background: var(--blpd-dark);
  border-radius: var(--blpd-radius);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.blpd-main-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.blpd-no-image {
  color: var(--blpd-mid);
  font-size: 18px;
}
.blpd-thumbnails {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.blpd-thumb {
  width: 72px;
  height: 72px;
  border: 2px solid transparent;
  border-radius: var(--blpd-radius);
  overflow: hidden;
  cursor: pointer;
  background: var(--blpd-dark);
  padding: 0;
  transition: border-color var(--blpd-transition);
}
.blpd-thumb.active, .blpd-thumb:hover {
  border-color: var(--blpd-red);
}
.blpd-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Info Column */
.blpd-title {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 12px;
  line-height: 1.3;
}
.blpd-code {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  color: var(--blpd-light);
  margin-bottom: 24px;
  padding: 7px 10px;
  border: 1px solid rgba(204, 0, 0, 0.55);
  border-radius: var(--blpd-radius);
  background: rgba(204, 0, 0, 0.08);
}
.blpd-code strong {
  color: var(--blpd-red);
  font-size: 16px;
}

/* Specs Table */
.blpd-specs-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
}
.blpd-specs-table th,
.blpd-specs-table td {
  padding: 10px 16px;
  font-size: 15px;
  text-align: left;
  border-bottom: 1px solid var(--blpd-gray);
}
.blpd-specs-table th {
  width: 100px;
  color: var(--blpd-light);
  font-weight: 500;
  white-space: nowrap;
}
.blpd-specs-table td {
  color: var(--blpd-white);
}

/* Action Buttons */
.blpd-actions {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}
.blpd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--blpd-radius);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--blpd-transition);
  border: 2px solid transparent;
}
.blpd-btn-primary {
  background: var(--blpd-red);
  color: #fff;
  border-color: var(--blpd-red);
}
.blpd-btn-primary:hover {
  background: var(--blpd-red-hover);
  border-color: var(--blpd-red-hover);
}
.blpd-btn-outline {
  background: transparent;
  color: var(--blpd-white);
  border-color: var(--blpd-mid);
}
.blpd-btn-outline:hover {
  border-color: #fff;
  color: #fff;
}
.blpd-btn-lg {
  padding: 14px 36px;
  font-size: 16px;
}

/* Share */
.blpd-share {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--blpd-light);
}
.blpd-share a {
  color: var(--blpd-light);
  text-decoration: none;
  padding: 4px 10px;
  border: 1px solid var(--blpd-gray);
  border-radius: var(--blpd-radius);
  font-size: 14px;
  transition: all var(--blpd-transition);
}
.blpd-share a:hover {
  color: #fff;
  border-color: var(--blpd-red);
}

/* ═══ Tabs Section ═══ */
.blpd-tabs {
  background: var(--blpd-dark);
  padding: 48px 0;
}
.blpd-tab-nav {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--blpd-gray);
  margin-bottom: 32px;
}
.blpd-tab-btn {
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--blpd-light);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: all var(--blpd-transition);
}
.blpd-tab-btn.active {
  color: #fff;
  border-bottom-color: var(--blpd-red);
}
.blpd-tab-btn:hover {
  color: #fff;
}
.blpd-tab-panel {
  display: none;
  animation: blpd-fadeIn 0.3s ease;
}
.blpd-tab-panel.active { display: block; }
@keyframes blpd-fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Full Specs Table */
.blpd-full-specs {
  width: 100%;
  max-width: 700px;
  border-collapse: collapse;
}
.blpd-full-specs th,
.blpd-full-specs td {
  padding: 12px 20px;
  font-size: 16px;
  text-align: left;
  border-bottom: 1px solid var(--blpd-gray);
}
.blpd-full-specs th {
  width: 140px;
  color: var(--blpd-light);
  font-weight: 500;
}
.blpd-full-specs td {
  color: var(--blpd-white);
}

/* Product spec sheet */
.blpd-spec-sheet {
  max-width: 980px;
}
.blpd-spec-sheet__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 20px;
}
.blpd-spec-sheet h2 {
  margin: 0 0 6px;
  font-size: 22px;
  line-height: 1.3;
  color: #fff;
}
.blpd-spec-sheet p {
  margin: 0;
  color: var(--blpd-light);
  font-size: 15px;
}
.blpd-spec-sheet__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.blpd-spec-sheet__viewer {
  width: 100%;
  height: min(72vh, 760px);
  min-height: 520px;
  background: #111;
  border: 1px solid var(--blpd-gray);
  border-radius: var(--blpd-radius);
  overflow: hidden;
}
.blpd-spec-sheet__viewer iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  background: #111;
}
.blpd-spec-sheet--empty {
  padding: 32px;
  border: 1px solid var(--blpd-gray);
  border-radius: var(--blpd-radius);
  background: rgba(10, 10, 10, 0.35);
}

/* Description Content */
.blpd-desc-content {
  color: var(--blpd-white);
  font-size: 15px;
  line-height: 1.8;
}
.blpd-desc-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--blpd-radius);
  margin: 16px 0;
}
.blpd-desc-content a:has(img) {
  cursor: zoom-in;
  display: inline-block;
}
.blpd-desc-content a:has(img):hover img {
  filter: brightness(1.06);
}
.blpd-desc-content p { margin-bottom: 16px; }

/* Product image lightbox */
.blpd-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: stretch;
  justify-content: center;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
}
.blpd-lightbox.is-open {
  display: flex;
}
.blpd-lightbox__stage {
  position: relative;
  width: min(100%, 1440px);
  min-height: 100vh;
  padding: 72px 120px 132px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.blpd-lightbox__image-wrap {
  max-width: 100%;
  max-height: calc(100vh - 220px);
  overflow: hidden;
  border-radius: var(--blpd-radius);
  cursor: zoom-in;
}
.blpd-lightbox__image-wrap.is-zoomed {
  cursor: zoom-out;
}
.blpd-lightbox__image {
  display: block;
  max-width: 100%;
  max-height: calc(100vh - 220px);
  object-fit: contain;
  transform: scale(var(--blpd-lightbox-zoom, 1));
  transform-origin: var(--blpd-lightbox-origin-x, 50%) var(--blpd-lightbox-origin-y, 50%);
  transition: transform 160ms ease;
  user-select: none;
}
.blpd-lightbox__close,
.blpd-lightbox__nav {
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(10, 10, 10, 0.72);
  color: #fff;
  cursor: pointer;
  transition: background var(--blpd-transition), border-color var(--blpd-transition);
}
.blpd-lightbox__close:hover,
.blpd-lightbox__nav:hover {
  background: rgba(204, 0, 0, 0.9);
  border-color: rgba(204, 0, 0, 0.9);
}
.blpd-lightbox__close {
  position: absolute;
  top: 24px;
  right: 28px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 28px;
  line-height: 1;
}
.blpd-lightbox__nav {
  position: absolute;
  top: 50%;
  width: 48px;
  height: 72px;
  border-radius: var(--blpd-radius);
  font-size: 34px;
  transform: translateY(-50%);
}
.blpd-lightbox__prev { left: 32px; }
.blpd-lightbox__next { right: 32px; }
.blpd-lightbox__counter {
  position: absolute;
  left: 32px;
  top: 34px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  letter-spacing: 0.04em;
}
.blpd-lightbox__thumbs {
  position: absolute;
  left: 50%;
  bottom: 28px;
  width: min(92vw, 900px);
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  justify-content: center;
  overflow-x: auto;
  padding: 4px 4px 10px;
}
.blpd-lightbox__thumb {
  flex: 0 0 auto;
  width: 76px;
  height: 62px;
  padding: 0;
  border: 2px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--blpd-radius);
  background: #111;
  cursor: pointer;
  overflow: hidden;
}
.blpd-lightbox__thumb.is-active {
  border-color: var(--blpd-red);
}
.blpd-lightbox__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.blpd-lightbox__hint {
  position: absolute;
  left: 50%;
  bottom: 104px;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.48);
  font-size: 12px;
  pointer-events: none;
}

/* ═══ Related Products ═══ */
.blpd-related {
  background: var(--blpd-black);
  padding: 60px 0;
}
.blpd-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.blpd-related-card {
  background: var(--blpd-dark);
  border-radius: var(--blpd-radius);
  overflow: hidden;
  text-decoration: none;
  transition: transform var(--blpd-transition), box-shadow var(--blpd-transition);
}
.blpd-related-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(204, 0, 0, 0.15);
}
.blpd-related-img {
  aspect-ratio: 4/3;
  background: #111;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.blpd-related-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 16px;
}
.blpd-no-image-sm {
  color: var(--blpd-mid);
  font-size: 14px;
}
.blpd-related-name {
  padding: 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--blpd-white);
  text-align: center;
  line-height: 1.4;
}

/* ═══ Inquiry Form ═══ */
.blpd-inquiry {
  background: var(--blpd-dark);
  padding: 60px 0;
}
.blpd-inquiry-desc {
  color: var(--blpd-light);
  font-size: 14px;
  margin-bottom: 32px;
}
.blpd-form {
  max-width: 700px;
}
.blpd-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.blpd-form-group {
  display: flex;
  flex-direction: column;
}
.blpd-form-full { margin-bottom: 20px; }
.blpd-form-group label {
  font-size: 13px;
  color: var(--blpd-light);
  margin-bottom: 6px;
  font-weight: 500;
}
.blpd-form-group .required { color: var(--blpd-red); }
.blpd-form-group input,
.blpd-form-group textarea {
  background: var(--blpd-black);
  border: 1px solid var(--blpd-gray);
  border-radius: var(--blpd-radius);
  padding: 12px 16px;
  font-size: 14px;
  color: #fff;
  transition: border-color var(--blpd-transition);
  font-family: inherit;
}
.blpd-form-group input:focus,
.blpd-form-group textarea:focus {
  outline: none;
  border-color: var(--blpd-red);
}
.blpd-form-group input::placeholder,
.blpd-form-group textarea::placeholder {
  color: var(--blpd-mid);
}

/* ═══ Prev / Next ═══ */
.blpd-prevnext {
  background: var(--blpd-black);
  padding: 40px 0 60px;
}
.blpd-prevnext-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.blpd-prevnext-link {
  display: block;
  padding: 20px 24px;
  background: var(--blpd-dark);
  border-radius: var(--blpd-radius);
  text-decoration: none;
  transition: background var(--blpd-transition);
}
.blpd-prevnext-link:hover {
  background: #222;
}
.blpd-prevnext-next { text-align: right; }
.blpd-prevnext-label {
  display: block;
  font-size: 12px;
  color: var(--blpd-red);
  margin-bottom: 6px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.blpd-prevnext-title {
  font-size: 14px;
  color: var(--blpd-white);
}

/* ═══ Quote Modal ═══ */
.blpd-modal-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: blpd-fadeIn 0.2s ease;
}
.blpd-modal {
  position: relative;
  width: 90%;
  max-width: 680px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--blpd-dark);
  border: 1px solid var(--blpd-gray);
  border-radius: 8px;
  padding: 36px 32px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.5);
}
.blpd-modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  font-size: 28px;
  color: var(--blpd-light);
  cursor: pointer;
  line-height: 1;
  padding: 4px;
  transition: color var(--blpd-transition);
}
.blpd-modal-close:hover { color: #fff; }

.blpd-modal-title {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 6px;
}
.blpd-modal-subtitle {
  font-size: 13px;
  color: var(--blpd-light);
  margin: 0 0 20px;
}

.blpd-modal-product {
  background: var(--blpd-black);
  border: 1px solid rgba(204, 0, 0, 0.28);
  border-radius: var(--blpd-radius);
  padding: 12px 16px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.blpd-modal-product--code {
  margin-top: -12px;
}
.blpd-modal-product-label {
  font-size: 13px;
  color: var(--blpd-light);
  white-space: nowrap;
}
.blpd-modal-product-name {
  font-size: 14px;
  color: var(--blpd-red);
  font-weight: 600;
}

.blpd-modal-trap {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Modal Form */
.blpd-modal-form { margin-top: 0; }
.blpd-modal-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.blpd-modal-group {
  display: flex;
  flex-direction: column;
}
.blpd-modal-full { margin-bottom: 16px; }
.blpd-modal-group label {
  font-size: 13px;
  color: var(--blpd-light);
  margin-bottom: 6px;
  font-weight: 500;
}
.blpd-modal-group .required { color: var(--blpd-red); }
.blpd-modal-group input,
.blpd-modal-group textarea {
  background: var(--blpd-black);
  border: 1px solid var(--blpd-gray);
  border-radius: var(--blpd-radius);
  padding: 11px 14px;
  font-size: 14px;
  color: #fff;
  font-family: inherit;
  transition: border-color var(--blpd-transition);
}
.blpd-modal-group textarea {
  min-height: 88px;
  resize: vertical;
}
.blpd-modal-group input:focus,
.blpd-modal-group textarea:focus {
  outline: none;
  border-color: var(--blpd-red);
  box-shadow: 0 0 0 3px rgba(204, 0, 0, 0.16);
}
.blpd-modal-group input::placeholder,
.blpd-modal-group textarea::placeholder {
  color: var(--blpd-mid);
}

/* Feedback Messages */
.blpd-modal-feedback {
  padding: 10px 14px;
  border-radius: var(--blpd-radius);
  font-size: 13px;
  margin-bottom: 16px;
  line-height: 1.5;
}
.blpd-feedback-success {
  background: rgba(0,200,83,0.1);
  border: 1px solid rgba(0,200,83,0.3);
  color: #4caf50;
}
.blpd-feedback-error {
  background: rgba(204,0,0,0.1);
  border: 1px solid rgba(204,0,0,0.3);
  color: #ff5252;
}

/* Modal Actions */
.blpd-modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}
.blpd-modal-cancel {
  background: transparent;
  color: var(--blpd-light);
  border: 1px solid var(--blpd-gray);
}

/* ═══════════════════════════════════════════════
   RESPONSIVE — Tablet & Mobile
   ═══════════════════════════════════════════════ */
@media (max-width: 768px) {
  .blpd-hero {
    padding-top: 90px;
  }
  .blpd-breadcrumb {
    padding: 16px 0 12px;
    font-size: 12px;
  }
  .blpd-hero-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .blpd-title { font-size: 22px; }
  .blpd-tab-btn { padding: 12px 16px; font-size: 13px; }
  .blpd-spec-sheet__header {
    align-items: stretch;
    flex-direction: column;
  }
  .blpd-spec-sheet__actions {
    justify-content: flex-start;
  }
  .blpd-spec-sheet__viewer {
    min-height: 420px;
    height: 62vh;
  }
  .blpd-related-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .blpd-form-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .blpd-prevnext-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .blpd-prevnext-next { text-align: left; }

  .blpd-lightbox__stage {
    padding: 68px 18px 120px;
  }
  .blpd-lightbox__image-wrap,
  .blpd-lightbox__image {
    max-height: calc(100vh - 210px);
  }
  .blpd-lightbox__nav {
    top: auto;
    bottom: 28px;
    width: 44px;
    height: 56px;
    font-size: 28px;
    transform: none;
  }
  .blpd-lightbox__prev { left: 16px; }
  .blpd-lightbox__next { right: 16px; }
  .blpd-lightbox__close {
    top: 18px;
    right: 18px;
  }
  .blpd-lightbox__counter {
    left: 18px;
    top: 30px;
  }
  .blpd-lightbox__thumbs {
    bottom: 22px;
    width: calc(100vw - 128px);
  }
  .blpd-lightbox__thumb {
    width: 58px;
    height: 48px;
  }
  .blpd-lightbox__hint {
    display: none;
  }

  /* Modal mobile */
  .blpd-modal {
    padding: 28px 20px;
    width: 95%;
    border-radius: 6px;
  }
  .blpd-modal-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .blpd-modal-actions {
    flex-direction: column-reverse;
  }
  .blpd-modal-actions .blpd-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .blpd-hero {
    padding-top: 80px;
  }
  .blpd-breadcrumb {
    padding: 12px 0 8px;
    font-size: 11px;
  }
  .blpd-related-grid {
    grid-template-columns: 1fr;
  }
  .blpd-actions {
    flex-direction: column;
  }
  .blpd-spec-sheet__actions .blpd-btn {
    width: 100%;
  }
  .blpd-spec-sheet__viewer {
    min-height: 360px;
  }
  .blpd-container { padding: 0 16px; }
  .blpd-specs-table th { width: 80px; }

  /* Modal small screen */
  .blpd-modal {
    padding: 24px 16px;
    width: 100%;
    border-radius: 0;
    max-height: 100vh;
  }
  .blpd-modal-title { font-size: 18px; }
}