/* ==============================================
   Product Detail Pages — Shared Layout
   Scoped to .product-page only
   ============================================== */

.product-page {
  --psn-section: clamp(4rem, 7vw, 6.25rem);
  --psn-gap: clamp(1.5rem, 3vw, 2.5rem);

  /* Typography — premium B2B scale (~10–15% reduction) */
  --psn-title-size: clamp(1.45rem, 2.5vw + 0.4rem, 1.95rem);
  --psn-section-size: clamp(1.35rem, 2.2vw + 0.35rem, 2.125rem);
  --psn-cta-size: clamp(1.35rem, 2.5vw + 0.35rem, 1.9rem);
  --psn-subsection-size: 1.0625rem;
  --psn-body-size: 0.9375rem;
  --psn-body-lg-size: 1.0625rem;
  --psn-caption-size: 0.8125rem;
  --psn-lh-heading: 1.32;
  --psn-lh-snug: 1.45;
  --psn-lh-body: 1.72;
  --psn-lh-relaxed: 1.82;
  --psn-heading-gap: 0.75rem;
}

/* --- Typography hierarchy (page-wide) --- */

.product-page .section-heading {
  font-size: var(--psn-section-size);
  font-weight: var(--fw-semibold);
  line-height: var(--psn-lh-heading);
  letter-spacing: -0.018em;
}

.product-page .section-header .section-heading {
  margin-bottom: var(--psn-heading-gap);
}

.product-page .section-description {
  font-size: clamp(0.9375rem, 1vw + 0.25rem, 1.0625rem);
  line-height: var(--psn-lh-relaxed);
}

.product-page .section-label {
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  margin-bottom: 0.625rem;
}

.product-page .breadcrumb li {
  font-size: var(--psn-caption-size);
  line-height: var(--psn-lh-snug);
}

.product-page .btn {
  font-size: var(--psn-body-size);
  font-weight: var(--fw-medium);
}

.product-page .feature-title {
  font-size: var(--psn-subsection-size);
  font-weight: var(--fw-medium);
  line-height: var(--psn-lh-snug);
}

.product-page .feature-desc {
  font-size: var(--psn-body-size);
  line-height: var(--psn-lh-body);
}

.product-page .faq-question {
  font-size: var(--psn-body-lg-size);
  font-weight: var(--fw-medium);
  line-height: var(--psn-lh-snug);
}

.product-page .faq-answer p {
  font-size: var(--psn-body-size);
  line-height: var(--psn-lh-relaxed);
}

.product-page .product-card-title {
  font-size: var(--psn-subsection-size);
  font-weight: var(--fw-medium);
  line-height: var(--psn-lh-snug);
}

.product-page .product-card-link {
  font-size: var(--psn-body-size);
  font-weight: var(--fw-medium);
}

.product-page .enquiry-modal-title {
  font-size: clamp(1.125rem, 2vw + 0.2rem, 1.375rem);
  font-weight: var(--fw-semibold);
  line-height: var(--psn-lh-heading);
  letter-spacing: -0.015em;
}

.product-page .enquiry-modal-desc,
.product-page .form-label {
  font-size: var(--psn-body-size);
  line-height: var(--psn-lh-body);
}

.product-page .form-input,
.product-page .form-textarea {
  font-size: var(--psn-body-size);
  line-height: var(--psn-lh-body);
}

.product-page .psn-specs-section .specs-table th {
  font-weight: var(--fw-medium);
}

.product-page .section-header {
  margin-bottom: 2.5rem;
}

.product-page .psn-faq-section .faq-answer {
  padding: 1.125rem 1.375rem;
}

.product-page .psn-faq-section .faq-answer p {
  font-size: var(--psn-body-size);
  line-height: var(--psn-lh-relaxed);
}

.product-page .psn-wrap {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* --- Breadcrumb --- */
.product-page .psn-breadcrumb-bar {
  padding-block: 1rem 0.5rem;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.product-page .psn-breadcrumb-bar .breadcrumb {
  margin-bottom: 0;
}

.product-page .psn-breadcrumb-bar .breadcrumb ol {
  justify-content: flex-start;
}

/* --- Product + Inquiry (2-column) --- */
.product-page .psn-inquiry-section {
  padding-block: var(--psn-gap);
  background: var(--color-bg);
}

.product-page .psn-inquiry-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--psn-gap);
  align-items: start;
}

.product-page .psn-gallery .product-gallery-main {
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

.product-page .psn-gallery-main-img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: opacity 0.2s ease, transform 0.45s ease;
}

.product-page .psn-gallery-main-img.is-fading {
  opacity: 0;
}

.product-page .psn-gallery .product-gallery-main:hover .psn-gallery-main-img {
  transform: scale(1.03);
}

.product-page .psn-product-info {
  display: flex;
  flex-direction: column;
  gap: 1.125rem;
}

.product-page .psn-product-info .section-label {
  font-size: var(--psn-caption-size);
  line-height: var(--psn-lh-snug);
  margin-bottom: 0;
}

.product-page .psn-product-title {
  font-size: var(--psn-title-size);
  font-weight: var(--fw-semibold);
  color: var(--color-heading);
  line-height: var(--psn-lh-heading);
  letter-spacing: -0.018em;
}

.product-page .psn-product-intro {
  font-size: var(--psn-body-lg-size);
  line-height: var(--psn-lh-relaxed);
  color: var(--color-text);
}

.product-page .psn-icon-features {
  display: grid;
  /* minmax(0,…) lets columns shrink below min-content on narrow screens */
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.875rem;
  list-style: none;
}

.product-page .psn-icon-feature {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  min-width: 0;
  padding: 1rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--psn-body-size);
  font-weight: var(--fw-medium);
  color: var(--color-heading);
  line-height: var(--psn-lh-snug);
}

.product-page .psn-icon-feature svg {
  flex-shrink: 0;
  color: var(--color-primary);
}

.product-page .psn-trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
}

.product-page .psn-trust-badge {
  padding: 0.375rem 0.875rem;
  font-size: var(--psn-caption-size);
  font-weight: var(--fw-medium);
  color: var(--color-primary);
  background: var(--color-bg-muted);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* --- Product Action Buttons --- */
.product-page .psn-action-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.product-page .psn-quote-btn,
.product-page .psn-quote-whatsapp {
  width: 100%;
  justify-content: center;
}

@media (min-width: 640px) {
  .product-page .psn-action-buttons {
    flex-direction: row;
  }
}

@media (min-width: 1200px) {
  .product-page .psn-inquiry-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 2rem;
  }
}

/* --- Quote modal animations --- */
.product-page .enquiry-modal.psn-quote-modal {
  max-width: 640px;
  opacity: 0;
  transform: scale(0.94) translateY(10px);
  transition:
    opacity 0.28s ease,
    transform 0.28s ease,
    overlay 0.28s ease allow-discrete,
    display 0.28s ease allow-discrete;
}

.product-page .enquiry-modal.psn-quote-modal[open] {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.product-page .enquiry-modal.psn-quote-modal.is-closing {
  opacity: 0;
  transform: scale(0.96) translateY(6px);
}

.product-page .enquiry-modal.psn-quote-modal::backdrop {
  background-color: rgba(15, 23, 42, 0);
  transition: background-color 0.28s ease, backdrop-filter 0.28s ease;
}

.product-page .enquiry-modal.psn-quote-modal[open]::backdrop {
  background-color: rgba(15, 23, 42, 0.60);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
}

.product-page .enquiry-modal.psn-quote-modal.is-closing::backdrop {
  background-color: rgba(15, 23, 42, 0);
  -webkit-backdrop-filter: blur(0);
  backdrop-filter: blur(0);
}

.product-page .psn-field-readonly {
  background-color: var(--color-bg-alt);
  color: var(--color-heading);
  cursor: default;
  font-weight: var(--fw-medium);
}

.product-page .psn-quote-modal .enquiry-modal-actions .btn {
  flex: none;
  width: 100%;
}

@media (prefers-reduced-motion: reduce) {
  .product-page .enquiry-modal.psn-quote-modal,
  .product-page .enquiry-modal.psn-quote-modal::backdrop {
    transition: none;
  }
}

/* --- Product Overview (large) --- */
.product-page .psn-overview-section {
  padding-block: var(--psn-section);
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.product-page .psn-overview-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--psn-gap);
  align-items: start;
}

.product-page .psn-overview-content {
  display: flex;
  flex-direction: column;
  gap: 1.375rem;
}

.product-page .psn-overview-heading {
  font-size: var(--psn-section-size);
  font-weight: var(--fw-semibold);
  color: var(--color-heading);
  line-height: var(--psn-lh-heading);
  letter-spacing: -0.018em;
}

.product-page .psn-prose {
  font-size: var(--psn-body-lg-size);
  line-height: var(--psn-lh-relaxed);
  color: var(--color-text);
}

.product-page .psn-prose + .psn-prose {
  margin-top: -0.375rem;
}

.product-page .psn-checklist {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  list-style: none;
  padding: 1.5rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.product-page .psn-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: var(--psn-body-lg-size);
  line-height: var(--psn-lh-body);
  color: var(--color-text);
}

.product-page .psn-checklist li svg {
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 0.15rem;
}

.product-page .psn-info-box {
  padding: 1.75rem;
  background: var(--color-bg-muted);
  border: 1px solid rgba(26, 86, 219, 0.12);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-primary);
}

.product-page .psn-info-box-title {
  font-size: var(--psn-subsection-size);
  font-weight: var(--fw-medium);
  color: var(--color-heading);
  margin-bottom: var(--psn-heading-gap);
  line-height: var(--psn-lh-snug);
}

.product-page .psn-info-box p {
  font-size: var(--psn-body-lg-size);
  line-height: var(--psn-lh-relaxed);
  color: var(--color-text);
}

.product-page .psn-overview-visual {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.product-page .psn-overview-image {
  margin: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.product-page .psn-overview-image img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.product-page .psn-highlight-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.875rem;
  list-style: none;
}

.product-page .psn-highlight-card {
  padding: 1.25rem;
  min-width: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.product-page .psn-highlight-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.product-page .psn-highlight-card strong {
  display: block;
  font-size: var(--psn-body-size);
  font-weight: var(--fw-medium);
  color: var(--color-heading);
  margin-bottom: 0.25rem;
  line-height: var(--psn-lh-snug);
}

.product-page .psn-highlight-card span {
  font-size: var(--psn-caption-size);
  color: var(--color-text);
  line-height: var(--psn-lh-body);
}

/* Trust strip */
.product-page .psn-trust-strip {
  margin-top: var(--psn-gap);
  padding-top: var(--psn-gap);
  border-top: 1px solid var(--color-border);
}

.product-page .psn-trust-strip-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  list-style: none;
}

.product-page .psn-trust-strip-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.product-page .psn-trust-strip-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.product-page .psn-trust-strip-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--color-bg-muted);
  border-radius: var(--radius-md);
  color: var(--color-primary);
}

.product-page .psn-trust-strip-text {
  font-size: var(--psn-body-size);
  font-weight: var(--fw-medium);
  color: var(--color-heading);
  line-height: var(--psn-lh-snug);
}

@media (min-width: 640px) {
  .product-page .psn-trust-strip-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .product-page .psn-overview-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3.5rem;
  }

  .product-page .psn-trust-strip-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* --- Features (page enhancements) --- */
.product-page .psn-features-section .features-grid {
  gap: 1.25rem;
}

.product-page .psn-features-section .feature-card {
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.product-page .psn-features-section .feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.product-page .psn-gallery .product-thumb-img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius-sm) - 2px);
}

.product-page .psn-cta-actions {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  max-width: 28rem;
  margin-inline: auto;
}

.product-page .psn-cta-panel .btn-secondary {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.65);
}

.product-page .psn-cta-panel .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
}

@media (min-width: 640px) {
  .product-page .psn-cta-actions {
    flex-direction: row;
    justify-content: center;
  }
}

@media (min-width: 1024px) {
  .product-page .psn-features-section .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --- Specs (page enhancements) --- */
.product-page .psn-specs-section {
  background: var(--color-bg-muted);
}

.product-page .psn-specs-section .specs-table-wrapper {
  max-width: 920px;
  margin-inline: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.product-page .psn-specs-section .specs-table th,
.product-page .psn-specs-section .specs-table td {
  padding: 1rem 1.375rem;
  font-size: var(--psn-body-size);
  line-height: var(--psn-lh-body);
}

/* --- FAQ (page enhancements) --- */
.product-page .psn-faq-section .faq-list {
  max-width: 860px;
}

.product-page .psn-faq-section .faq-item {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.product-page .psn-faq-section .faq-question {
  padding: 1.125rem 1.375rem;
}



/* --- Bottom CTA --- */
.product-page .psn-cta-section {
  padding-block: var(--psn-section);
  background: var(--color-bg);
}

.product-page .psn-cta-panel {
  text-align: center;
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 55%, var(--color-secondary) 100%);
  box-shadow: 0 16px 48px rgba(26, 86, 219, 0.2);
  color: var(--color-white);
}

.product-page .psn-cta-heading {
  font-size: var(--psn-cta-size);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  margin-bottom: var(--psn-heading-gap);
  line-height: var(--psn-lh-heading);
  letter-spacing: -0.018em;
}

.product-page .psn-cta-text {
  font-size: var(--psn-body-lg-size);
  line-height: var(--psn-lh-relaxed);
  color: rgba(255, 255, 255, 0.9);
  max-width: 56ch;
  margin-inline: auto;
  margin-bottom: 1.5rem;
}

.product-page .psn-cta-panel .btn-primary {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}

.product-page .psn-cta-panel .btn-primary:hover {
  background: var(--color-bg-muted);
  transform: translateY(-2px);
}

@media (prefers-reduced-motion: reduce) {
  .product-page .psn-gallery-main-img,
  .product-page .psn-highlight-card,
  .product-page .psn-trust-strip-card,
  .product-page .psn-features-section .feature-card {
    transition: none;
  }

  .product-page .psn-highlight-card:hover,
  .product-page .psn-trust-strip-card:hover,
  .product-page .psn-features-section .feature-card:hover {
    transform: none;
  }
}