/* ====================================================================
   Lumina Design System - Vanilla HTML Store Stylesheet
   Matches design-spec.md tokens identically
   ==================================================================== */

:root {
  /* Brand Canvas & Background Surfaces */
  --color-bg-base: #090d16;
  --color-bg-surface: #0f172a;
  --surface-color: var(--color-bg-surface);
  --color-bg-elevated: #1e293b;
  --color-bg-glass: rgba(15, 23, 42, 0.75);

  /* Borders & Dividers */
  --color-border-subtle: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(255, 255, 255, 0.20);
  --color-border-accent: rgba(245, 158, 11, 0.50);

  /* Primary Brand Accent (Radiant Amber) */
  --color-accent: #f59e0b;
  --color-accent-hover: #d97706;
  --color-accent-active: #b45309;
  --color-accent-subtle: rgba(245, 158, 11, 0.12);
  --color-accent-glow: rgba(245, 158, 11, 0.35);

  /* Secondary Accent */
  --color-secondary: #6366f1;
  --color-secondary-subtle: rgba(99, 102, 241, 0.12);

  /* Typography & Foreground */
  --color-text-primary: #f8fafc;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-text-inverse: #090d16;

  /* Semantic Feedback */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;

  /* Typography Fonts */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Border Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px -2px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 12px 36px -4px rgba(0, 0, 0, 0.65);
  --shadow-glow: 0 0 24px -2px var(--color-accent-glow);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 300ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Baseline & Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg-base);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6rem;
  padding-bottom: 5rem;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
}

a {
  color: inherit;
  text-decoration: none;
}

.hidden {
  display: none !important;
}

/* Header & Nav */
.lumina-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--color-bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-subtle);
  width: 100%;
}

.lumina-nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.lumina-brand {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lumina-brand-accent {
  color: var(--color-accent);
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: 2rem;
  font-size: 0.875rem;
  font-weight: 500;
}

@media (min-width: 768px) {
  .desktop-nav {
    display: flex;
  }
}

.nav-link {
  color: var(--color-text-secondary);
  transition: color var(--transition-normal);
}

.nav-link:hover {
  color: var(--color-accent);
}

.nav-btn-explore {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  transition: all var(--transition-normal);
}

.nav-btn-explore:hover {
  background-color: var(--color-accent-hover);
  transform: scale(1.05);
}

.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
}

@media (min-width: 768px) {
  .mobile-menu-toggle {
    display: none;
  }
}

.mobile-drawer {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background-color: rgba(9, 13, 22, 0.96);
  border-bottom: 1px solid var(--color-border-subtle);
  backdrop-filter: blur(16px);
}

.mobile-link {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-primary);
  padding: 0.25rem 0;
}

.mobile-link:hover {
  color: var(--color-accent);
}

.mobile-cta-btn {
  margin-top: 0.5rem;
  padding: 0.75rem;
  border-radius: var(--radius-md);
  text-align: center;
  font-weight: 600;
  font-size: 0.875rem;
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
}

/* 1. HERO SECTION */
.hero-section {
  position: relative;
  overflow: hidden;
  padding: 3rem 1.5rem 4rem;
}

@media (min-width: 768px) {
  .hero-section {
    padding: 5rem 1.5rem 5rem;
  }
}

.hero-ambient-glow {
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 550px;
  height: 350px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, rgba(245, 158, 11, 0) 70%);
  filter: blur(80px);
  pointer-events: none;
}

.hero-container {
  max-width: 64rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 10;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  background-color: var(--color-accent-subtle);
  color: var(--color-accent);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .hero-title {
    font-size: 3.5rem;
  }
}

.hero-gradient-text {
  background: linear-gradient(90deg, #fde68a, #f59e0b, #d97706);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 42rem;
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
}

@media (min-width: 640px) {
  .hero-cta-group {
    flex-direction: row;
    width: auto;
  }
}

.btn-primary-glow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  box-shadow: 0 10px 25px -5px rgba(245, 158, 11, 0.25);
  transition: all var(--transition-normal);
}

.btn-primary-glow:hover {
  background-color: var(--color-accent-hover);
  transform: scale(1.05);
}

.btn-secondary-glass {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 500;
  background-color: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--color-border-subtle);
  color: var(--color-text-primary);
  transition: all var(--transition-normal);
}

.btn-secondary-glass:hover {
  border-color: var(--color-border-hover);
  background-color: var(--color-bg-surface);
}

.hero-decorative-line {
  margin-top: 3.5rem;
  width: 100%;
  max-width: 36rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.4), transparent);
}

/* Common Section Layout */
.section-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
  scroll-margin-top: 6rem;
}

.section-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 3rem;
}

.section-tag {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.5rem;
  }
}

.section-subtitle {
  color: var(--color-text-secondary);
  max-width: 36rem;
  font-size: 1rem;
  line-height: 1.6;
}

/* 2. FEATURED PRODUCTS */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 64rem;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.product-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(15, 23, 42, 0.6);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 300ms cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(245, 158, 11, 0.35);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.7);
  background-color: rgba(15, 23, 42, 0.9);
}

.product-image-wrap {
  position: relative;
  aspect-ratio: 4 / 3;
  width: 100%;
  overflow: hidden;
  background-color: #030712;
}

.product-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 500ms cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card:hover .product-image {
  transform: scale(1.05);
}

.stock-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(16, 185, 129, 0.2);
  color: #6ee7b7;
  border: 1px solid rgba(16, 185, 129, 0.3);
  backdrop-filter: blur(8px);
}

.product-details {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  justify-content: space-between;
}

.product-header-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.product-name {
  font-size: 1.25rem;
  font-weight: 700;
  transition: color var(--transition-normal);
}

.product-card:hover .product-name {
  color: var(--color-accent);
}

.product-price {
  font-size: 1.125rem;
  font-weight: 700;
  font-family: monospace;
}

.product-desc {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

.btn-view-product {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--color-text-primary);
  transition: all var(--transition-normal);
}

.btn-view-product:hover {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  border-color: var(--color-accent);
}

/* 3. BENEFITS SECTION */
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 72rem;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .benefits-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.benefit-card {
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(15, 23, 42, 0.4);
  transition: all var(--transition-normal);
}

.benefit-card:hover {
  background-color: rgba(15, 23, 42, 0.7);
  border-color: rgba(255, 255, 255, 0.12);
}

.benefit-icon-wrap {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  background-color: var(--color-accent-subtle);
  border: 1px solid rgba(245, 158, 11, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.benefit-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.benefit-desc {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  line-height: 1.55;
}

/* 4. FAQ ACCORDION */
.faq-list {
  width: 100%;
  max-width: 48rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(15, 23, 42, 0.4);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.faq-item-open {
  background-color: rgba(15, 23, 42, 0.8);
  border-color: rgba(245, 158, 11, 0.3);
  box-shadow: var(--shadow-md);
}

.faq-trigger {
  width: 100%;
  padding: 1.125rem 1.25rem;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  text-align: left;
}

.faq-question {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.faq-chevron {
  color: var(--color-accent);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.faq-chevron-rotated {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  padding: 0 1.25rem;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  border-top: 1px solid transparent;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease, padding 0.3s ease, border-color 0.3s ease;
}

.faq-item-open .faq-answer {
  max-height: 500px;
  opacity: 1;
  padding: 0.5rem 1.25rem 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* FOOTER */
.site-footer {
  border-top: 1px solid var(--color-border-subtle);
  background-color: var(--color-bg-surface);
  padding: 3rem 1.5rem 2rem;
  width: 100%;
}

.footer-columns {
  max-width: 1280px;
  margin: 0 auto 2.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .footer-columns {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-desc {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  line-height: 1.5;
  max-width: 20rem;
}

.footer-heading {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.footer-link {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  transition: color var(--transition-normal);
}

.footer-link:hover {
  color: var(--color-accent);
}

.footer-text {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.footer-subtext {
  color: var(--color-text-muted);
  font-size: 0.75rem;
}

.footer-social-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.social-btn {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-sm);
  background-color: rgba(30, 41, 59, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: all var(--transition-normal);
}

.social-btn:hover {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
}

.footer-badge-text {
  color: var(--color-text-muted);
  font-size: 0.75rem;
}

.footer-bottom-bar {
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

@media (min-width: 640px) {
  .footer-bottom-bar {
    flex-direction: row;
  }
}

.footer-edition-label {
  font-family: monospace;
  color: var(--color-text-secondary);
}

/* ====================================================================
   PRODUCT DETAIL PAGE STYLES (HTML Store)
   ==================================================================== */
.product-detail-page {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.breadcrumb-link {
  color: var(--color-text-secondary);
  transition: color var(--transition-normal);
}

.breadcrumb-link:hover {
  color: var(--color-accent);
}

.breadcrumb-sep {
  color: var(--color-border-hover);
}

.breadcrumb-current {
  color: var(--color-text-primary);
}

.product-detail-card {
  background: var(--surface-color, var(--color-bg-surface));
  border-radius: 1.5rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  padding: 2rem;
  border: 1px solid var(--color-border-subtle);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  margin-bottom: 3rem;
}

@media (max-width: 640px) {
  .product-detail-card {
    padding: 1.25rem;
    border-radius: 1.25rem;
  }
}

.product-layout-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}

@media (min-width: 1024px) {
  .product-layout-grid {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }
}

.gallery-column {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.main-image-frame {
  position: relative;
  aspect-ratio: 4 / 3;
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background-color: #030712;
  border: 1px solid var(--color-border-subtle);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
}

.main-gallery-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 300ms ease-in-out;
}

.stock-pill-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(16, 185, 129, 0.2);
  color: #6ee7b7;
  border: 1px solid rgba(16, 185, 129, 0.3);
  backdrop-filter: blur(8px);
}

.thumbnails-strip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.thumb-btn {
  position: relative;
  width: 5rem;
  height: 5rem;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.1);
  background: transparent;
  cursor: pointer;
  padding: 0;
  opacity: 0.7;
  transition: all var(--transition-normal);
}

.thumb-btn:hover {
  opacity: 1;
  border-color: rgba(255, 255, 255, 0.3);
}

.thumb-btn-selected {
  border-color: var(--color-accent);
  opacity: 1;
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
}

.thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.info-column {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.signature-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background-color: var(--color-accent-subtle);
  color: var(--color-accent);
  border: 1px solid rgba(245, 158, 11, 0.2);
  margin-bottom: 0.75rem;
}

.product-title-large {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

@media (min-width: 640px) {
  .product-title-large {
    font-size: 2.5rem;
  }
}

.price-row {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1rem;
}

.price-tag-large {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: monospace;
  color: var(--color-accent);
}

@media (min-width: 640px) {
  .price-tag-large {
    font-size: 2rem;
  }
}

.price-subtext {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-summary-desc {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.6;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border-subtle);
}

.section-label-heading {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-primary);
  margin-bottom: 0.75rem;
}

.features-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.feature-check-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.check-icon {
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.purchase-action-row {
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
  padding: 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .purchase-action-row {
    flex-direction: row;
    align-items: center;
  }
}

.quantity-counter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  background-color: rgba(15, 23, 42, 0.6);
  padding: 0.25rem;
}

.qty-btn {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.qty-btn:hover:not(:disabled) {
  background-color: rgba(255, 255, 255, 0.1);
}

.qty-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.qty-number {
  width: 3rem;
  text-align: center;
  font-family: monospace;
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text-primary);
}

.order-now-cta {
  flex: 1;
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  box-shadow: 0 10px 25px -5px rgba(245, 158, 11, 0.25);
  transition: all var(--transition-normal);
}

.order-now-cta:hover {
  background-color: var(--color-accent-hover);
  transform: scale(1.02);
}

.specs-table-card {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(15, 23, 42, 0.4);
  overflow: hidden;
  font-size: 0.875rem;
}

.spec-table-row {
  display: grid;
  grid-template-columns: 1fr 2fr;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.spec-table-row:last-child {
  border-bottom: none;
}

.spec-key {
  color: var(--color-text-muted);
  font-weight: 500;
}

.spec-value {
  color: var(--color-text-primary);
}

.detailed-narrative-section {
  border-top: 1px solid var(--color-border-subtle);
  padding-top: 3rem;
}

.narrative-content-wrap {
  max-width: 48rem;
}

.narrative-heading {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.narrative-body {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
}

.related-product-section {
  border-top: 1px solid var(--color-border-subtle);
  padding-top: 3rem;
  padding-bottom: 1.5rem;
}

.related-header-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .related-header-row {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.related-section-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.related-view-link {
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap var(--transition-normal);
}

.related-view-link:hover {
  gap: 0.5rem;
}

.related-product-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(15, 23, 42, 0.6);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  max-width: 42rem;
  transition: border-color var(--transition-normal);
}

@media (min-width: 640px) {
  .related-product-card {
    flex-direction: row;
  }
}

.related-product-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

.related-product-thumb {
  width: 6rem;
  height: 6rem;
  border-radius: var(--radius-md);
  object-fit: cover;
  flex-shrink: 0;
  background-color: #000;
}

@media (min-width: 640px) {
  .related-product-thumb {
    width: 8rem;
    height: 8rem;
  }
}

.related-product-info {
  flex: 1;
}

.related-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.related-card-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.75rem;
}

.related-card-price {
  font-family: monospace;
  font-weight: 700;
  color: var(--color-accent);
}

.btn-switch-fixture {
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-text-primary);
  transition: all var(--transition-normal);
  flex-shrink: 0;
}

.btn-switch-fixture:hover {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
}