*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Assistant", sans-serif;
  font-size: 17px;
  line-height: 1.75;
  color: #334155;
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
}

/* ============================================
   LAYOUT
   ============================================ */
.blog-layout {
  display: flex;
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px 24px;
  gap: 60px;
}

/* ============================================
   SIDEBAR NAVIGATION
   ============================================ */
.blog-sidebar {
  position: sticky;
  top: 40px;
  width: 280px;
  min-width: 280px;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
  padding-right: 20px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.blog-sidebar::-webkit-scrollbar {
  display: none;
}

/* Close button — hidden on desktop */
.sidebar-close {
  display: none;
  align-items: center;
  gap: 8px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: "Assistant", sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: #64748b;
  padding: 8px 12px;
  border-radius: 8px;
  transition: all 0.2s ease;
  margin-bottom: 16px;
}

.sidebar-close:hover {
  color: #bf3425;
  background: #fef7f6;
}

.sidebar-close svg {
  flex-shrink: 0;
}

.blog-sidebar-title {
  font-family: "Archivo", sans-serif;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: #9d9d9c;
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-left: 12px;
}

.blog-sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.blog-sidebar-link {
  font-family: "Assistant", sans-serif;
  font-weight: 600;
  font-size: 14px;
  color: #64748b;
  padding: 10px 12px;
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.2s ease;
  display: block;
}

.blog-sidebar-link:hover {
  color: #47577c;
  background-color: #f8fafc;
}

.blog-sidebar-link.active {
  color: #bf3425;
  background-color: #fef7f6;
  font-weight: 700;
}

/* ============================================
   MOBILE NAV TOGGLE
   ============================================ */
.mobile-nav-toggle {
  display: none;
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1001;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, #bf3425 0%, #9d2a1e 100%);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(191, 52, 37, 0.4);
  transition: all 0.3s ease;
  align-items: center;
  justify-content: center;
}

.mobile-nav-toggle:hover {
  transform: scale(1.1);
}

.mobile-nav-toggle svg {
  width: 24px;
  height: 24px;
  stroke: #ffffff;
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.blog-content {
  flex: 1;
  max-width: 900px;
  min-width: 0;
}

/* ============================================
   BLOG META
   ============================================ */
.blog-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
  color: #64748b;
  margin-bottom: 10px;
}

.blog-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.blog-meta-icon {
  width: 16px;
  height: 16px;
  color: #64748b;
  flex-shrink: 0;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
.blog-content h1 {
  font-family: "Archivo", sans-serif;
  font-weight: 700;
  font-size: 2.75rem;
  line-height: 1.15;
  color: #1e293b;
  margin-bottom: 1.5rem;
}

.blog-content h2 {
  font-family: "Archivo", sans-serif;
  font-weight: 700;
  font-size: 1.75rem;
  color: #1e293b;
  margin-top: 3.5rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #bf3425;
}

.blog-content h3 {
  font-family: "Archivo", sans-serif;
  font-weight: 600;
  font-size: 1.25rem;
  color: #47577c;
  margin-top: 2rem;
  margin-bottom: 0.875rem;
}

.blog-content h4 {
  font-family: "Archivo", sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  color: #1e293b;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.blog-content ul,
.blog-content ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.blog-content li {
  margin-bottom: 0.625rem;
  font-size: 1.0625rem;
}

.blog-content a {
  color: #47577c;
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 600;
  transition: color 0.2s;
}

.blog-content a:hover {
  color: #bf3425;
}

/* Drop Cap */
.drop-cap::first-letter {
  float: left;
  font-family: "Archivo", sans-serif;
  font-size: 4.5rem;
  font-weight: 700;
  line-height: 0.8;
  color: #bf3425;
  margin-right: 12px;
  margin-top: 8px;
}

/* ============================================
   IMAGES
   ============================================ */
.full-width-image {
  width: 100%;
  border-radius: 12px;
  margin: 2rem 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  display: block;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.full-width-image:hover {
  transform: scale(1.01);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.image-caption {
  font-size: 0.875rem;
  color: #64748b;
  text-align: center;
  margin-top: -1.25rem;
  margin-bottom: 2rem;
  font-style: italic;
}

/* ============================================
   SPLIT LAYOUT
   ============================================ */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
  margin: 2.5rem 0;
}

.split-layout.reverse {
  direction: rtl;
}

.split-layout.reverse > * {
  direction: ltr;
}

.split-image img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  display: block;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.split-image img:hover {
  transform: scale(1.01);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.split-image .image-caption {
  margin-top: 0.5rem;
  margin-bottom: 0;
}

.split-text h3 {
  margin-top: 0;
}

/* ============================================
   HIGHLIGHT BOXES
   ============================================ */
.highlight-box {
  background: linear-gradient(135deg, #fef7f6 0%, #fff8f7 100%);
  border-radius: 12px;
  padding: 1.5rem 2rem;
  margin: 2rem 0;
  border: 1px solid #fbd5d0;
}

.highlight-box p {
  margin-bottom: 0;
}

.highlight-box h4 {
  color: #bf3425;
  margin-top: 0;
}

.highlight-box.dark {
  background: linear-gradient(135deg, #1e293b 0%, #2d3a52 100%);
  border-color: #334155;
  color: #e2e8f0;
}

.highlight-box.dark h4 {
  color: #f87171;
}

.highlight-box.dark p {
  color: #cbd5e1;
  margin-bottom: 0;
}

/* ============================================
   INFOGRAPHIC PLACEHOLDERS
   ============================================ */
.infographic-placeholder {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border: 2px dashed #cbd5e1;
  border-radius: 12px;
  padding: 2.5rem 2rem;
  margin: 2.5rem 0;
  text-align: center;
  color: #64748b;
}

.infographic-label {
  font-family: "Archivo", sans-serif;
  font-weight: 700;
  font-size: 0.875rem;
  color: #47577c;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.infographic-description {
  font-size: 0.9375rem;
  color: #64748b;
  line-height: 1.6;
  text-align: left;
}

/* ============================================
   LEARN MORE CARDS
   ============================================ */
.learn-more-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 2rem 0;
}

.learn-more-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  text-decoration: none;
  transition: all 0.3s ease;
}

.learn-more-card:hover {
  border-color: #bf3425;
  box-shadow: 0 8px 25px -5px rgba(191, 52, 37, 0.15);
  transform: translateY(-2px);
}

.learn-more-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, #47577c 0%, #1e293b 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.3s;
  color: #ffffff;
}

.learn-more-card:hover .learn-more-icon {
  background: linear-gradient(135deg, #bf3425 0%, #9d2a1e 100%);
}

.learn-more-icon svg {
  width: 24px;
  height: 24px;
  color: #ffffff;
}

.learn-more-text {
  display: flex;
  flex-direction: column;
}

.learn-more-title {
  font-family: "Archivo", sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: #1e293b;
  transition: color 0.3s;
}

.learn-more-card:hover .learn-more-title {
  color: #bf3425;
}

.learn-more-desc {
  font-size: 0.875rem;
  color: #64748b;
  margin-top: 0.25rem;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
  background: linear-gradient(135deg, #fef7f6 0%, #ffffff 100%);
  border: 2px solid #bf3425;
  border-radius: 16px;
  padding: 2rem;
  margin: 2.5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #bf3425, #47577c);
}

.cta-section p {
  margin-bottom: 1.25rem;
  color: #1e293b;
  font-size: 1.125rem;
}

.cta-button {
  display: inline-block;
  padding: 0.875rem 2rem;
  background: linear-gradient(135deg, #bf3425 0%, #9d2a1e 100%);
  color: #ffffff !important;
  font-family: "Archivo", sans-serif;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px -5px rgba(191, 52, 37, 0.4);
  color: #ffffff !important;
}

/* ============================================
   REFERENCES LIST
   ============================================ */
.references-list {
  padding-left: 1.5rem;
}

.references-list li {
  font-size: 0.9375rem;
  color: #475569;
  margin-bottom: 1rem;
  line-height: 1.65;
}

.references-list a {
  font-weight: 400;
  word-break: break-all;
}

/* ============================================
   AUTHOR SECTION
   ============================================ */
.author-section {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid #e2e8f0;
}

.author-card {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
  border-radius: 20px;
  padding: 2rem;
  border: 1px solid #e2e8f0;
}

.author-image-wrapper {
  flex-shrink: 0;
}

.author-image {
  width: 180px;
  height: 180px;
  border-radius: 16px;
  object-fit: cover;
  display: block;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.15);
}

.author-info {
  flex: 1;
  min-width: 0;
}

.author-name {
  font-family: "Archivo", sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  color: #1e293b;
  margin-bottom: 4px;
  text-decoration: underline;
  text-decoration-color: #bf3425;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.author-title {
  font-size: 1rem;
  font-weight: 600;
  color: #47577c;
  margin-bottom: 16px;
}

.author-social {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}

.author-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: #f8fafc;
  border-radius: 10px;
  transition:
    transform 0.2s,
    background 0.2s;
  text-decoration: none;
}

.author-social a:hover {
  transform: scale(1.1);
  background: #e2e8f0;
}

.author-social svg {
  width: 24px;
  height: 24px;
}

.about-author-label {
  font-family: "Archivo", sans-serif;
  font-weight: 700;
  font-size: 0.875rem;
  color: #bf3425;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.author-bio {
  font-size: 0.9375rem;
  color: #475569;
  line-height: 1.7;
  text-align: justify;
  margin: 0;
}

/* ============================================
   SECTION SCROLL MARGIN
   ============================================ */
section {
  scroll-margin-top: 40px;
}

/* ============================================
   RESPONSIVE — 1024px
   ============================================ */
@media (max-width: 1024px) {
  .blog-layout {
    flex-direction: column;
    align-items: stretch;
    gap: 32px;
  }

  /* Sidebar becomes horizontal pills on tablet */
  .blog-sidebar {
    position: relative;
    top: 0;
    width: 100%;
    min-width: 100%;
    max-height: none;
    padding-right: 0;
    padding-bottom: 24px;
    border-bottom: 1px solid #e2e8f0;
    align-self: auto;
  }

  .blog-sidebar-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }

  .blog-sidebar-link {
    font-size: 13px;
    padding: 8px 12px;
  }

  .blog-content h1 {
    font-size: 2rem;
  }

  .split-layout {
    grid-template-columns: 1fr;
  }

  .split-layout.reverse {
    direction: ltr;
  }

  .split-layout.reverse > * {
    direction: ltr;
  }

  .learn-more-container {
    grid-template-columns: 1fr;
  }

  .author-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .author-social {
    justify-content: center;
  }

  .author-bio {
    text-align: center;
  }
}

/* ============================================
   RESPONSIVE — 768px (Mobile, sidebar overlay)
   ============================================ */
@media (max-width: 768px) {
  /* Show hamburger button */
  .mobile-nav-toggle {
    display: flex;
  }

  /* Sidebar becomes full-screen overlay */
  .blog-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    background: #ffffff;
    z-index: 999;
    padding: 20px;
    overflow-y: auto;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
    border-bottom: none;
    max-height: 100vh;
    align-self: auto;
  }

  .blog-sidebar.active {
    transform: translateY(0);
  }

  /* Show close button inside sidebar */
  .sidebar-close {
    display: flex;
  }

  .blog-sidebar-nav {
    flex-direction: column;
    gap: 4px;
  }

  .blog-sidebar-link {
    font-size: 16px;
    padding: 14px 16px;
    border-radius: 8px;
  }

  .blog-sidebar-title {
    font-size: 12px;
    margin-bottom: 20px;
    padding-top: 8px;
  }

  .blog-layout {
    padding: 20px 16px;
    gap: 0;
  }

  .blog-content h1 {
    font-size: 1.75rem;
  }

  .blog-content h2 {
    font-size: 1.4rem;
    margin-top: 2.5rem;
  }

  .split-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .split-layout.reverse {
    direction: ltr;
  }

  .split-layout.reverse > * {
    direction: ltr;
  }

  .learn-more-container {
    grid-template-columns: 1fr;
  }

  .author-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem;
  }

  .author-social {
    justify-content: center;
  }

  .author-bio {
    text-align: left;
  }

  .highlight-box {
    padding: 1.25rem 1.5rem;
  }

  .infographic-placeholder {
    padding: 1.5rem 1rem;
  }
}

/* ============================================
   RESPONSIVE — 640px
   ============================================ */
@media (max-width: 640px) {
  .blog-content h1 {
    font-size: 1.5rem;
  }

  .blog-content h2 {
    font-size: 1.25rem;
  }

  .blog-meta {
    gap: 10px;
    font-size: 13px;
  }

  .cta-section {
    padding: 1.5rem 1rem;
  }

  .cta-button {
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
  }

  .author-image {
    width: 140px;
    height: 140px;
  }
}

/* ============================================
   RESPONSIVE — 480px
   ============================================ */
@media (max-width: 480px) {
  .blog-content h1 {
    font-size: 1.35rem;
  }

  .blog-layout {
    padding: 16px 12px;
  }
}


/* ===== "Our perspective" editorial callout (citation discipline) ===== */
.perspective-box {
  background: #f4f6fa;
  border: 1px solid #dbe1ec;
  border-left: 4px solid #47577c;
  border-radius: 12px;
  padding: 20px 24px;
  margin: 28px 0;
}
.perspective-box .perspective-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: #47577c;
  margin-bottom: 8px;
}
.perspective-box p {
  margin: 0;
  color: #374151;
  line-height: 1.7;
}
@media (max-width: 640px) {
  .perspective-box { padding: 16px 18px; }
}


/* ===== sticky-sidebar hardening (blog-publish hard rule) =====
   position:sticky silently fails inside a flex container that stretches its
   items. The sidebar is already max-height capped, but pin the alignment
   explicitly so a future content/viewport change cannot break it. */
.blog-layout {
  align-items: flex-start;
}
.blog-sidebar {
  align-self: flex-start;
}

/* Below the column-stack breakpoint, .blog-layout is flex-direction:column, so
   align-items governs the CROSS axis (width) instead of vertical alignment.
   flex-start there would shrink .blog-content to its own min-content width
   instead of the full column, causing horizontal overflow on mobile. */
@media (max-width: 1024px) {
  .blog-layout {
    align-items: stretch;
  }
}

/* ===== Recycled wing-spar infographics ===== */

/* ---------- shared card shell ---------- */
.vpipe-root.vpipe-root,
.ucell-root.ucell-root,
.sparx-root.sparx-root,
.trlad-root.trlad-root {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.07);
  padding: 28px;
  max-width: 860px;
  margin: 32px auto;
  font-family: "Inter", -apple-system, sans-serif;
}
.vpipe-eyebrow,
.ucell-eyebrow,
.sparx-eyebrow,
.trlad-eyebrow {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #9d9d9c;
  margin: 0 0 6px;
}
.vpipe-title,
.ucell-title,
.sparx-title,
.trlad-title {
  font-size: 20px;
  font-weight: 700;
  color: #47577c;
  margin: 0 0 4px;
}
.vpipe-subtitle,
.ucell-subtitle,
.sparx-subtitle,
.trlad-subtitle {
  font-size: 13px;
  color: #9d9d9c;
  margin: 0 0 24px;
  line-height: 1.5;
}
.vpipe-note,
.ucell-note,
.sparx-note,
.trlad-note {
  font-size: 12px;
  color: #9d9d9c;
  margin: 18px 0 0;
  font-style: italic;
}

/* ---------- vpipe — four-stage validation pipeline ---------- */
.vpipe-stages {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  align-items: stretch;
}
.vpipe-stage {
  position: relative;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 16px 14px;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.vpipe-root.vpipe-animated .vpipe-stage {
  opacity: 1;
  transform: translateY(0);
}
.vpipe-root.vpipe-animated .vpipe-stage:nth-child(1) { transition-delay: 0.05s; }
.vpipe-root.vpipe-animated .vpipe-stage:nth-child(2) { transition-delay: 0.18s; }
.vpipe-root.vpipe-animated .vpipe-stage:nth-child(3) { transition-delay: 0.31s; }
.vpipe-root.vpipe-animated .vpipe-stage:nth-child(4) { transition-delay: 0.44s; }
.vpipe-stage--final {
  background: #fdf3f1;
  border-color: #eec7c0;
}
.vpipe-stage-num {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #fff;
  background: #47577c;
  border-radius: 999px;
  padding: 3px 9px;
  margin-bottom: 10px;
}
.vpipe-stage--final .vpipe-stage-num {
  background: #bf3425;
}
.vpipe-stage-title {
  font-size: 14px;
  font-weight: 700;
  color: #47577c;
  margin: 0 0 10px;
  line-height: 1.3;
}
.vpipe-stage--final .vpipe-stage-title {
  color: #bf3425;
}
.vpipe-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.vpipe-list li {
  font-size: 12px;
  line-height: 1.5;
  color: #374151;
  padding: 0 0 0 13px;
  margin: 0 0 8px;
  position: relative;
}
.vpipe-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #c8cdd8;
}
.vpipe-stage--final .vpipe-list li::before {
  background: #eec7c0;
}
.vpipe-out {
  font-size: 11px;
  line-height: 1.45;
  color: #47577c;
  font-weight: 600;
  border-top: 1px dashed #d7dde8;
  margin: 12px 0 0;
  padding-top: 10px;
}
.vpipe-stage--final .vpipe-out {
  color: #bf3425;
  border-top-color: #eec7c0;
}
.vpipe-arrow {
  position: absolute;
  right: -11px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: #c8cdd8;
  z-index: 2;
}
@media (max-width: 860px) {
  .vpipe-stages {
    grid-template-columns: repeat(2, 1fr);
  }
  .vpipe-arrow {
    display: none;
  }
}
@media (max-width: 560px) {
  .vpipe-stages {
    grid-template-columns: 1fr;
  }
}

/* ---------- ucell — recycled F593 woven unit cell ---------- */
.ucell-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  align-items: center;
}
.ucell-figure {
  width: 100%;
  max-width: 340px;
  margin: 0 auto;
}
.ucell-figure svg {
  width: 100%;
  height: auto;
  display: block;
}
.ucell-tow {
  opacity: 0;
  transition: opacity 0.6s ease;
}
.ucell-root.ucell-animated .ucell-tow {
  opacity: 1;
}
.ucell-root.ucell-animated .ucell-tow--b { transition-delay: 0.15s; }
.ucell-dim {
  opacity: 0;
  transition: opacity 0.5s ease;
}
.ucell-root.ucell-animated .ucell-dim {
  opacity: 1;
  transition-delay: 0.35s;
}
.ucell-rows {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.ucell-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid #eef1f6;
  padding-bottom: 10px;
  opacity: 0;
  transform: translateX(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.ucell-root.ucell-animated .ucell-row {
  opacity: 1;
  transform: translateX(0);
}
.ucell-root.ucell-animated .ucell-row:nth-child(1) { transition-delay: 0.1s; }
.ucell-root.ucell-animated .ucell-row:nth-child(2) { transition-delay: 0.2s; }
.ucell-root.ucell-animated .ucell-row:nth-child(3) { transition-delay: 0.3s; }
.ucell-root.ucell-animated .ucell-row:nth-child(4) { transition-delay: 0.4s; }
.ucell-sym {
  font-size: 13px;
  font-weight: 700;
  color: #47577c;
  white-space: nowrap;
}
.ucell-desc {
  font-size: 12px;
  color: #9d9d9c;
  line-height: 1.4;
  flex: 1;
}
.ucell-val {
  font-size: 15px;
  font-weight: 700;
  color: #bf3425;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.ucell-val span {
  font-size: 11px;
  font-weight: 600;
  color: #9d9d9c;
  margin-left: 3px;
}
@media (max-width: 640px) {
  .ucell-wrap {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* ---------- sparx — recycled vs original spar (Table 15) ---------- */
.sparx-groups {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.sparx-group {
  border: 1px solid #eef1f6;
  border-radius: 12px;
  padding: 16px 18px;
}
.sparx-group-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.sparx-group-title {
  font-size: 13px;
  font-weight: 700;
  color: #47577c;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0;
}
.sparx-group-diff {
  font-size: 11px;
  color: #9d9d9c;
  font-weight: 600;
}
.sparx-row {
  display: grid;
  grid-template-columns: 96px 1fr 108px;
  align-items: center;
  gap: 10px;
  margin-bottom: 9px;
}
.sparx-row:last-child {
  margin-bottom: 0;
}
.sparx-name {
  font-size: 12px;
  font-weight: 600;
  color: #374151;
}
.sparx-track {
  display: block;
  height: 20px;
  background: #f1f4f9;
  border-radius: 5px;
  overflow: hidden;
}
.sparx-bar {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 5px;
  transition: width 1s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.sparx-bar--rec {
  background: #bf3425;
}
.sparx-bar--org {
  background: #47577c;
}
.sparx-val {
  font-size: 13px;
  font-weight: 700;
  color: #47577c;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.sparx-verdict {
  font-size: 12px;
  line-height: 1.5;
  color: #374151;
  background: #f8fafc;
  border-left: 3px solid #47577c;
  border-radius: 0 8px 8px 0;
  padding: 8px 12px;
  margin: 12px 0 0;
}
.sparx-verdict strong {
  color: #47577c;
}
.sparx-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 18px;
  font-size: 12px;
  color: #9d9d9c;
}
.sparx-legend i {
  display: inline-block;
  width: 11px;
  height: 11px;
  border-radius: 3px;
  margin-right: 6px;
  vertical-align: -1px;
}
.sparx-swatch--rec { background: #bf3425; }
.sparx-swatch--org { background: #47577c; }
@media (max-width: 640px) {
  .sparx-row {
    grid-template-columns: 74px 1fr 88px;
    gap: 7px;
  }
  .sparx-name,
  .sparx-val {
    font-size: 11px;
  }
  .sparx-group {
    padding: 14px 12px;
  }
}

/* ---------- trlad — TRL ladder ---------- */
.trlad-ladder {
  display: flex;
  flex-direction: column-reverse;
  gap: 5px;
}
.trlad-rung {
  display: grid;
  grid-template-columns: 62px 1fr 118px;
  align-items: center;
  gap: 12px;
  background: #f8fafc;
  border: 1px solid #eef1f6;
  border-radius: 8px;
  padding: 9px 12px;
  opacity: 0;
  transform: translateX(-14px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.trlad-root.trlad-animated .trlad-rung {
  opacity: 1;
  transform: translateX(0);
}
.trlad-root.trlad-animated .trlad-rung:nth-child(1) { transition-delay: 0.04s; }
.trlad-root.trlad-animated .trlad-rung:nth-child(2) { transition-delay: 0.11s; }
.trlad-root.trlad-animated .trlad-rung:nth-child(3) { transition-delay: 0.18s; }
.trlad-root.trlad-animated .trlad-rung:nth-child(4) { transition-delay: 0.25s; }
.trlad-root.trlad-animated .trlad-rung:nth-child(5) { transition-delay: 0.32s; }
.trlad-root.trlad-animated .trlad-rung:nth-child(6) { transition-delay: 0.39s; }
.trlad-root.trlad-animated .trlad-rung:nth-child(7) { transition-delay: 0.46s; }
.trlad-root.trlad-animated .trlad-rung:nth-child(8) { transition-delay: 0.53s; }
.trlad-root.trlad-animated .trlad-rung:nth-child(9) { transition-delay: 0.6s; }
.trlad-rung--here {
  background: #fdf3f1;
  border-color: #bf3425;
  box-shadow: 0 2px 10px rgba(191, 52, 37, 0.14);
}
.trlad-num {
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: #9d9d9c;
  border-radius: 6px;
  padding: 4px 0;
  text-align: center;
  letter-spacing: 0.04em;
}
.trlad-rung--here .trlad-num {
  background: #bf3425;
}
.trlad-rung--dev .trlad-num {
  background: #47577c;
}
.trlad-desc {
  font-size: 13px;
  color: #374151;
  line-height: 1.4;
}
.trlad-rung--here .trlad-desc {
  font-weight: 700;
  color: #bf3425;
}
.trlad-band {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #9d9d9c;
  text-align: right;
}
.trlad-rung--here .trlad-band {
  color: #bf3425;
}
.trlad-read {
  font-size: 13px;
  line-height: 1.6;
  color: #374151;
  background: #f8fafc;
  border-left: 3px solid #bf3425;
  border-radius: 0 8px 8px 0;
  padding: 12px 16px;
  margin: 20px 0 0;
}
.trlad-read strong {
  color: #bf3425;
}
@media (max-width: 640px) {
  .trlad-rung {
    grid-template-columns: 52px 1fr;
    gap: 9px;
  }
  .trlad-band {
    display: none;
  }
  .trlad-desc {
    font-size: 12px;
  }
}