*,
*::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;
    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; }
}



/* ===== CFRP cockpit console infographics ===== */

/* ---------- shared card shell ---------- */
#ccmass-root.ccmass-root,
#ccprop-root.ccprop-root,
#cclam-root.cclam-root,
#cccure-root.cccure-root,
#ccmodal-root.ccmodal-root,
#ccrms-root.ccrms-root,
#ccshock-root.ccshock-root,
#cclevel-root.cclevel-root,
#ccjoint-root.ccjoint-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, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.ccmass-eyebrow,
.ccprop-eyebrow,
.cclam-eyebrow,
.cccure-eyebrow,
.ccmodal-eyebrow,
.ccrms-eyebrow,
.ccshock-eyebrow,
.cclevel-eyebrow,
.ccjoint-eyebrow {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #9d9d9c;
  margin: 0 0 6px;
}

.ccmass-title,
.ccprop-title,
.cclam-title,
.cccure-title,
.ccmodal-title,
.ccrms-title,
.ccshock-title,
.cclevel-title,
.ccjoint-title {
  font-size: 20px;
  font-weight: 700;
  color: #47577c;
  margin: 0 0 6px;
  line-height: 1.3;
}

.ccmass-subtitle,
.ccprop-subtitle,
.cclam-subtitle,
.cccure-subtitle,
.ccmodal-subtitle,
.ccrms-subtitle,
.ccshock-subtitle,
.cclevel-subtitle,
.ccjoint-subtitle {
  font-size: 13px;
  color: #9d9d9c;
  margin: 0 0 22px;
  line-height: 1.55;
}

/* shared footnote strip */
.ccmass-note,
.ccprop-note,
.cclam-note,
.cccure-note,
.ccmodal-note,
.ccrms-note,
.ccshock-note,
.cclevel-note,
.ccjoint-note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid #eef1f6;
  font-size: 11.5px;
  line-height: 1.6;
  color: #9d9d9c;
}

/* ============================================================
   ccmass — structural mass, aluminium vs CFRP
   ============================================================ */
.ccmass-row {
  margin-bottom: 20px;
}
.ccmass-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 7px;
}
.ccmass-label {
  font-size: 13px;
  font-weight: 600;
  color: #47577c;
}
.ccmass-val {
  font-size: 15px;
  font-weight: 700;
  color: #47577c;
  white-space: nowrap;
}
.ccmass-val--hi {
  color: #bf3425;
}
.ccmass-track {
  position: relative;
  height: 26px;
  background: #f1f3f7;
  border-radius: 6px;
  overflow: hidden;
}
.ccmass-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0;
  border-radius: 6px;
  background: #47577c;
  transition: width 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}
.ccmass-fill--alt {
  background: #bf3425;
}
.ccmass-delta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  padding: 14px 18px;
  background: #f4f6fa;
  border-left: 4px solid #bf3425;
  border-radius: 8px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.5s ease 0.7s, transform 0.5s ease 0.7s;
}
.ccmass-root.ccmass-animated .ccmass-delta {
  opacity: 1;
  transform: translateY(0);
}
.ccmass-delta-num {
  font-size: 22px;
  font-weight: 800;
  color: #bf3425;
  line-height: 1;
  white-space: nowrap;
  flex: 0 0 auto;
}
.ccmass-delta-txt {
  font-size: 12.5px;
  color: #47577c;
  line-height: 1.5;
}
.ccmass-axis {
  display: flex;
  justify-content: space-between;
  margin-top: 4px;
  font-size: 10.5px;
  color: #c8cdd8;
}

/* ============================================================
   ccprop — engineering constants, Al 6061 vs T300/YPH-308
   ============================================================ */
.ccprop-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 0;
  border: 1px solid #eef1f6;
  border-radius: 10px;
  overflow: hidden;
}
.ccprop-cell {
  padding: 9px 12px;
  font-size: 12.5px;
  border-bottom: 1px solid #eef1f6;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.ccprop-root.ccprop-animated .ccprop-cell {
  opacity: 1;
  transform: translateY(0);
}
.ccprop-cell--head {
  background: #47577c;
  color: #fff;
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: none;
}
.ccprop-cell--prop {
  color: #47577c;
  font-weight: 600;
  background: #fafbfd;
}
.ccprop-cell--num {
  color: #374151;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.ccprop-cell--cfrp {
  color: #bf3425;
  font-weight: 600;
}
.ccprop-stat {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 20px;
}
.ccprop-stat-card {
  background: #f4f6fa;
  border-radius: 10px;
  padding: 14px;
  text-align: center;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.5s ease 0.6s, transform 0.5s ease 0.6s;
}
.ccprop-root.ccprop-animated .ccprop-stat-card {
  opacity: 1;
  transform: translateY(0);
}
.ccprop-stat-num {
  font-size: 24px;
  font-weight: 800;
  color: #bf3425;
  line-height: 1;
}
.ccprop-stat-lab {
  font-size: 11px;
  color: #9d9d9c;
  margin-top: 6px;
  line-height: 1.45;
}

/* ============================================================
   cclam — laminate architecture, 5 mm wall
   ============================================================ */
.cclam-wrap {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 26px;
  align-items: start;
}
.cclam-stack {
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  overflow: hidden;
}
.cclam-ply {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 14px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.28);
  opacity: 0;
  transform: translateX(-10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.cclam-root.cclam-animated .cclam-ply {
  opacity: 1;
  transform: translateX(0);
}
.cclam-ply:last-child {
  border-bottom: none;
}
.cclam-ply--face {
  background: #9d9d9c;
}
.cclam-ply--0 {
  background: #47577c;
}
.cclam-ply--45 {
  background: #6b7a9e;
}
.cclam-ply--90 {
  background: #8d9ab7;
}
.cclam-ply--n45 {
  background: #6b7a9e;
}
.cclam-ply--rep {
  background: #eef1f6;
  color: #9d9d9c;
  font-weight: 500;
  font-style: italic;
  justify-content: center;
}
.cclam-ply-note {
  font-weight: 400;
  font-size: 10.5px;
  opacity: 0.85;
}
.cclam-facelabel {
  font-size: 10.5px;
  color: #c8cdd8;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 0 0 6px;
}
.cclam-facelabel--in {
  margin: 6px 0 0;
}
.cclam-spec {
  font-size: 12.5px;
}
.cclam-spec-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed #eef1f6;
}
.cclam-spec-row:last-child {
  border-bottom: none;
}
.cclam-spec-k {
  color: #9d9d9c;
}
.cclam-spec-v {
  color: #47577c;
  font-weight: 700;
  text-align: right;
}
.cclam-ratio {
  display: flex;
  height: 12px;
  border-radius: 6px;
  overflow: hidden;
  margin-top: 14px;
  background: #f1f3f7;
}
.cclam-ratio-seg {
  height: 100%;
  width: 0;
  transition: width 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}
.cclam-ratio-seg--a {
  background: #47577c;
}
.cclam-ratio-seg--b {
  background: #8d9ab7;
}
.cclam-ratio-seg--c {
  background: #bf3425;
}
.cclam-ratio-key {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 9px;
  font-size: 11px;
  color: #9d9d9c;
}
.cclam-key-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  margin-right: 5px;
  vertical-align: middle;
}

/* ============================================================
   cccure — autoclave cure profile
   ============================================================ */
.cccure-chart {
  position: relative;
  width: 100%;
}
.cccure-svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}
.cccure-line {
  fill: none;
  stroke: #47577c;
  stroke-width: 2.5;
  stroke-linejoin: round;
  stroke-linecap: round;
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  transition: stroke-dashoffset 1.8s ease;
}
.cccure-root.cccure-animated .cccure-line {
  stroke-dashoffset: 0;
}
.cccure-pline {
  fill: none;
  stroke: #bf3425;
  stroke-width: 2.2;
  stroke-dasharray: 7 5;
  opacity: 0;
  transition: opacity 0.6s ease 1.1s;
}
.cccure-root.cccure-animated .cccure-pline {
  opacity: 1;
}
.cccure-grid {
  stroke: #eef1f6;
  stroke-width: 1;
}
.cccure-axis {
  stroke: #c8cdd8;
  stroke-width: 1;
}
.cccure-tick {
  font-size: 10px;
  fill: #9d9d9c;
}
.cccure-hold {
  font-size: 10.5px;
  font-weight: 700;
  fill: #47577c;
  opacity: 0;
  transition: opacity 0.5s ease 1.3s;
}
.cccure-root.cccure-animated .cccure-hold {
  opacity: 1;
}
.cccure-key {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 14px;
  font-size: 11.5px;
  color: #9d9d9c;
}
.cccure-key-line {
  display: inline-block;
  width: 18px;
  height: 0;
  border-top: 2.5px solid #47577c;
  margin-right: 6px;
  vertical-align: middle;
}
.cccure-key-line--p {
  border-top: 2.2px dashed #bf3425;
}

/* ============================================================
   ccmodal — first five natural frequencies
   ============================================================ */
.ccmodal-row {
  margin-bottom: 16px;
}
.ccmodal-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 6px;
}
.ccmodal-mode {
  font-size: 12px;
  font-weight: 700;
  color: #47577c;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.ccmodal-def {
  font-size: 11px;
  color: #9d9d9c;
}
.ccmodal-def b {
  color: #47577c;
}
.ccmodal-pair {
  display: grid;
  gap: 5px;
}
.ccmodal-bar {
  display: flex;
  align-items: center;
  gap: 10px;
}
.ccmodal-tag {
  flex: 0 0 34px;
  font-size: 10px;
  font-weight: 700;
  color: #9d9d9c;
  text-transform: uppercase;
}
.ccmodal-track {
  position: relative;
  flex: 1;
  height: 16px;
  background: #f1f3f7;
  border-radius: 4px;
  overflow: hidden;
}
.ccmodal-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0;
  border-radius: 4px;
  background: #c8cdd8;
  transition: width 1s cubic-bezier(0.22, 1, 0.36, 1);
}
.ccmodal-fill--cfrp {
  background: #47577c;
}
.ccmodal-num {
  flex: 0 0 56px;
  font-size: 12.5px;
  font-weight: 700;
  color: #47577c;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.ccmodal-num--mut {
  color: #9d9d9c;
}
.ccmodal-band {
  margin-top: 18px;
  padding: 13px 16px;
  background: #f4f6fa;
  border-left: 4px solid #47577c;
  border-radius: 8px;
  font-size: 12px;
  color: #47577c;
  line-height: 1.6;
  opacity: 0;
  transition: opacity 0.5s ease 0.8s;
}
.ccmodal-root.ccmodal-animated .ccmodal-band {
  opacity: 1;
}

/* ============================================================
   ccrms — random vibration RMISES
   ============================================================ */
.ccrms-crit {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}
.ccrms-chip {
  flex: 1 1 150px;
  background: #f4f6fa;
  border-radius: 8px;
  padding: 10px 13px;
  font-size: 11.5px;
  color: #47577c;
  line-height: 1.5;
}
.ccrms-chip b {
  display: block;
  font-size: 15px;
  font-weight: 800;
  color: #bf3425;
  margin-bottom: 2px;
}
.ccrms-sub {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #9d9d9c;
  margin: 22px 0 12px;
}
.ccrms-row {
  margin-bottom: 14px;
}
.ccrms-label {
  font-size: 12.5px;
  font-weight: 600;
  color: #47577c;
  margin-bottom: 6px;
}
.ccrms-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}
.ccrms-tag {
  flex: 0 0 38px;
  font-size: 10px;
  font-weight: 700;
  color: #9d9d9c;
  text-transform: uppercase;
}
.ccrms-track {
  position: relative;
  flex: 1;
  height: 15px;
  background: #f1f3f7;
  border-radius: 4px;
  overflow: hidden;
}
.ccrms-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0;
  border-radius: 4px;
  background: #c8cdd8;
  transition: width 1s cubic-bezier(0.22, 1, 0.36, 1);
}
.ccrms-fill--cfrp {
  background: #47577c;
}
.ccrms-num {
  flex: 0 0 46px;
  font-size: 12px;
  font-weight: 700;
  color: #47577c;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.ccrms-num--mut {
  color: #9d9d9c;
}

/* ============================================================
   ccshock — terminal peak sawtooth shock
   ============================================================ */
.ccshock-axis {
  margin-bottom: 16px;
  border: 1px solid #eef1f6;
  border-radius: 10px;
  overflow: hidden;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.ccshock-root.ccshock-animated .ccshock-axis {
  opacity: 1;
  transform: translateY(0);
}
.ccshock-axis--flag {
  border-color: #f0cfca;
}
.ccshock-axis-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: #47577c;
  color: #fff;
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.ccshock-axis--flag .ccshock-axis-head {
  background: #bf3425;
}
.ccshock-flag {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(255, 255, 255, 0.22);
  border-radius: 20px;
  padding: 2px 9px;
}
.ccshock-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr 1fr;
}
.ccshock-c {
  padding: 8px 14px;
  font-size: 12.5px;
  border-bottom: 1px solid #eef1f6;
  font-variant-numeric: tabular-nums;
}
.ccshock-grid > .ccshock-c:nth-last-child(-n + 4) {
  border-bottom: none;
}
.ccshock-c--h {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #9d9d9c;
  background: #fafbfd;
}
.ccshock-c--k {
  font-weight: 600;
  color: #47577c;
}
.ccshock-c--cfrp {
  color: #bf3425;
  font-weight: 600;
}
.ccshock-c--mut {
  color: #9d9d9c;
}

/* ============================================================
   cclevel — shaker level schedule
   ============================================================ */
.cclevel-steps {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 150px;
  margin-bottom: 8px;
}
.cclevel-step {
  flex: 0 0 46px;
  background: #c8cdd8;
  border-radius: 5px 5px 0 0;
  height: 0;
  transition: height 0.9s cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
}
.cclevel-step--full {
  flex: 1;
  background: #47577c;
}
.cclevel-step-lab {
  position: absolute;
  top: -19px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 11px;
  font-weight: 700;
  color: #47577c;
}
.cclevel-step-dur {
  position: absolute;
  bottom: 6px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 10px;
  font-weight: 600;
  color: #fff;
}
.cclevel-base {
  height: 1px;
  background: #c8cdd8;
  margin-bottom: 18px;
}
.cclevel-stat {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.cclevel-card {
  background: #f4f6fa;
  border-radius: 10px;
  padding: 13px 16px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.5s ease 0.7s, transform 0.5s ease 0.7s;
}
.cclevel-root.cclevel-animated .cclevel-card {
  opacity: 1;
  transform: translateY(0);
}
.cclevel-card-k {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #9d9d9c;
  margin-bottom: 4px;
}
.cclevel-card-v {
  font-size: 17px;
  font-weight: 800;
  color: #47577c;
}
.cclevel-card-v--hi {
  color: #bf3425;
}
.cclevel-card-s {
  font-size: 11px;
  color: #9d9d9c;
  margin-top: 3px;
}

/* ============================================================
   ccjoint — bolt-hole bearing failure mechanism
   ============================================================ */
.ccjoint-flow {
  display: grid;
  gap: 0;
}
.ccjoint-step {
  display: flex;
  gap: 14px;
  padding: 11px 0;
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.ccjoint-root.ccjoint-animated .ccjoint-step {
  opacity: 1;
  transform: translateX(0);
}
.ccjoint-num {
  flex: 0 0 26px;
  height: 26px;
  border-radius: 50%;
  background: #47577c;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ccjoint-step--last .ccjoint-num {
  background: #bf3425;
}
.ccjoint-txt {
  font-size: 13px;
  color: #374151;
  line-height: 1.55;
  padding-top: 4px;
}
.ccjoint-connector {
  width: 2px;
  height: 12px;
  background: #eef1f6;
  margin-left: 12px;
}
.ccjoint-fix {
  margin-top: 20px;
  padding: 16px 18px;
  background: #f4f6fa;
  border-left: 4px solid #bf3425;
  border-radius: 8px;
  opacity: 0;
  transition: opacity 0.5s ease 0.9s;
}
.ccjoint-root.ccjoint-animated .ccjoint-fix {
  opacity: 1;
}
.ccjoint-fix-k {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: #bf3425;
  margin-bottom: 5px;
}
.ccjoint-fix p {
  margin: 0;
  font-size: 12.5px;
  color: #47577c;
  line-height: 1.6;
}

/* ============================================================
   responsive
   ============================================================ */
@media (max-width: 640px) {
  #ccmass-root.ccmass-root,
  #ccprop-root.ccprop-root,
  #cclam-root.cclam-root,
  #cccure-root.cccure-root,
  #ccmodal-root.ccmodal-root,
  #ccrms-root.ccrms-root,
  #ccshock-root.ccshock-root,
  #cclevel-root.cclevel-root,
  #ccjoint-root.ccjoint-root {
    padding: 20px 16px;
    margin: 24px auto;
  }
  .cclam-wrap {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .ccprop-grid {
    grid-template-columns: 1.3fr 1fr 1fr;
    font-size: 11px;
  }
  .ccprop-cell {
    padding: 7px 8px;
    font-size: 11px;
  }
  .ccprop-stat {
    grid-template-columns: 1fr;
  }
  .ccshock-grid {
    grid-template-columns: 1fr 1fr 1fr 1fr;
  }
  .ccshock-c {
    padding: 7px 8px;
    font-size: 11px;
  }
  .cclevel-stat {
    grid-template-columns: 1fr;
  }
  .cclevel-steps {
    height: 120px;
  }
  .cclevel-step {
    flex: 0 0 32px;
  }
  .ccmodal-num {
    flex: 0 0 46px;
    font-size: 11.5px;
  }
  .ccrms-num {
    flex: 0 0 40px;
    font-size: 11px;
  }
}

.ccprop-cell--mut {
  color: #c8cdd8;
}

/* ===== 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;
}