/* ============================================================
   GROUND TRUTH DEMO - Screenshot Overlay Approach
   Uses actual ERPEC homepage screenshot as background,
   with Ground Truth content overlaid at integration points.
   ============================================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Helvetica Neue', Arial, 'Segoe UI', sans-serif;
  font-size: 15px;
  line-height: 1.65;
  color: #333333;
  background: #FFFFFF;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: #2A6496;
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: #1D4B73;
}

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

/* ============================================================
   SPLASH OVERLAY
   ============================================================ */
.splash-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 0.4s ease;
}

.splash-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.splash-card {
  background: #FFFFFF;
  border-radius: 6px;
  padding: 48px 56px;
  max-width: 560px;
  width: 90%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.splash-card h2 {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: #2A6496;
  margin-bottom: 24px;
}

.splash-card p {
  font-size: 15px;
  line-height: 1.7;
  color: #555555;
  margin-bottom: 16px;
}

.splash-card .splash-disclaimer {
  font-size: 13px;
  color: #888888;
  margin-bottom: 32px;
}

.splash-card .splash-btn {
  display: inline-block;
  background: #2A6496;
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 14px 40px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s;
  font-family: inherit;
}

.splash-card .splash-btn:hover {
  background: #1D4B73;
}

/* ============================================================
   SCREENSHOT HEADER
   The ERPEC nav bar, inserted as a full-width screenshot.
   ============================================================ */
.screenshot-header {
  line-height: 0;
  background: #4a90b8;
}

.screenshot-header a {
  display: block;
  line-height: 0;
}

.screenshot-bg-header {
  width: 100%;
  display: block;
}

/* Sticky header on article page */
.screenshot-header--sticky {
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* ============================================================
   SCREENSHOT HERO SECTION (Carousel / 3-story block)
   The ERPEC carousel screenshot sits as a full-width image.
   Our GT content overlay is positioned over the center panel.
   ============================================================ */
.screenshot-hero {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: #f0f0f0;
  line-height: 0;
}

.screenshot-bg {
  width: 100%;
  display: block;
}

/* --- Ground Truth Hero Overlay ---
   Positioned over the CENTER (Jet) panel of the 3-story carousel.
   The carousel has 3 equal-width panels side by side.
   Adjust top/height if the screenshot includes elements
   above or below the panels.
   ----------------------------------------------------------- */
.gt-hero-overlay {
  position: absolute;
  /* Center panel of 3-column carousel */
  top: 0;
  left: 33.33%;
  width: 33.34%;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  text-decoration: none;
  color: #333333;
  cursor: pointer;
  z-index: 2;
  background: #FFFFFF;
}

.gt-hero-overlay:hover {
  text-decoration: none;
  color: #333333;
}

/* "GROUND TRUTH" badge at top */
.gt-hero-badge {
  background: #00374B;
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 8px 16px;
  text-align: center;
  flex-shrink: 0;
}

/* Hero image in the middle of the panel */
.gt-hero-image {
  flex: 1 1 auto;
  min-height: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s ease;
}

.gt-hero-overlay:hover .gt-hero-image {
  transform: scale(1.03);
}

/* Dark gradient from bottom for text readability */
.gt-hero-gradient {
  display: none;
}

/* Headline + date below the image */
.gt-hero-content {
  padding: 12px 16px 8px;
  flex-shrink: 0;
  background: #FFFFFF;
}

.gt-hero-headline {
  font-size: clamp(14px, 1.6vw, 22px);
  font-weight: 700;
  line-height: 1.25;
  color: #1a1a1a;
  margin-bottom: 6px;
}

.gt-hero-date {
  display: inline-block;
}

.gt-hero-date span {
  font-size: 13px;
  color: #666666;
}

/* SECU-TECH logo at bottom of overlay panel */
.gt-hero-logo {
  flex-shrink: 0;
  padding: 6px 16px 10px;
  background: #FFFFFF;
  text-align: right;
}

.gt-hero-logo img {
  height: 18px;
  width: auto;
  opacity: 0.55;
}

/* ============================================================
   GROUND TRUTH SECTION (below screenshot)
   ============================================================ */
.ground-truth-section {
  padding: 40px 0 48px;
  background: #fafbfc;
  border-top: 1px solid #eeeeee;
  border-bottom: 1px solid #eeeeee;
  line-height: 1.65;
}

.gt-section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 8px;
  padding-bottom: 10px;
  border-bottom: 3px solid #3B8BBA;
}

.gt-section-header h2 {
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  color: #1e3248;
  letter-spacing: 0.5px;
}

.view-link {
  font-size: 13px;
  color: #2A6496;
  font-weight: 400;
  white-space: nowrap;
}

.view-link:hover {
  text-decoration: underline;
}

.gt-tagline {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  margin-top: 6px;
}

.gt-tagline p {
  font-size: 13px;
  color: #888888;
  font-style: italic;
}

.gt-tagline .secu-logo {
  height: 18px;
  width: auto;
  opacity: 0.55;
}

/* Ground Truth Cards */
.gt-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.gt-card {
  background: #FFFFFF;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
  transition: box-shadow 0.25s, transform 0.25s;
}

.gt-card:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
  transform: translateY(-3px);
}

.gt-card a {
  text-decoration: none;
  color: inherit;
  display: block;
}

.gt-card-image {
  width: 100%;
  height: 140px;
  object-fit: cover;
  display: block;
}

.gt-card-body {
  padding: 16px;
}

.gt-card-body h3 {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  color: #333333;
  margin-bottom: 8px;
}

.gt-card:hover .gt-card-body h3 {
  color: #2A6496;
}

.gt-card-body .gt-card-date {
  font-size: 12px;
  color: #999999;
  margin-bottom: 8px;
}

.gt-card-body .gt-card-teaser {
  font-size: 13px;
  color: #666666;
  line-height: 1.5;
}

/* ============================================================
   SCREENSHOT BOTTOM SECTION (optional)
   Shows the rest of the ERPEC page below our GT section.
   ============================================================ */
.screenshot-bottom {
  line-height: 0;
  background: #f0f0f0;
}

.screenshot-bg-bottom {
  width: 100%;
  display: block;
}

/* Hide the bottom screenshot section if no image loads */
.screenshot-bottom img[src=""] {
  display: none;
}

/* ============================================================
   ARTICLE PAGE STYLES
   ============================================================ */

/* Header (shared between pages) */
.main-header {
  background: #4a90b8;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.main-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo:hover {
  text-decoration: none;
}

.logo-text {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 28px;
  font-weight: 400;
  font-style: italic;
  color: #FFFFFF;
  letter-spacing: -0.5px;
}

.logo-badge {
  display: inline-block;
  background: rgba(0, 0, 0, 0.25);
  color: #FFFFFF;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 12px;
  font-weight: 700;
  font-style: normal;
  letter-spacing: 0.5px;
  padding: 4px 8px;
  border-radius: 3px;
  position: relative;
  top: -1px;
}

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.main-nav > .nav-item {
  position: relative;
}

.main-nav > .nav-item > a,
.main-nav > .nav-item > button {
  display: flex;
  align-items: center;
  gap: 5px;
  color: rgba(255, 255, 255, 0.95);
  font-size: 13px;
  font-weight: 600;
  padding: 20px 14px;
  border: none;
  background: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s, color 0.2s;
  font-family: inherit;
}

.main-nav > .nav-item > a:hover,
.main-nav > .nav-item > button:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
  text-decoration: none;
}

.nav-caret {
  font-size: 8px;
  opacity: 0.7;
}

.nav-highlight {
  text-transform: uppercase;
}

/* Dropdown */
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #FFFFFF;
  border: 1px solid #e0e0e0;
  border-top: 3px solid #2A6496;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  min-width: 240px;
  z-index: 2000;
  padding: 8px 0;
}

.nav-item:hover .dropdown-menu {
  display: block;
}

.dropdown-menu a {
  display: block;
  padding: 8px 20px;
  color: #333333;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.65;
}

.dropdown-menu a:hover {
  background: #f5f8fa;
  color: #2A6496;
  text-decoration: none;
}

.dropdown-divider {
  border-top: 1px solid #eeeeee;
  margin: 6px 0;
}

/* Search field in nav */
.nav-search-box {
  display: flex;
  align-items: center;
  margin-left: 8px;
}

.nav-search-input {
  width: 120px;
  padding: 6px 10px;
  font-size: 12px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 3px 0 0 3px;
  background: rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  font-family: inherit;
  outline: none;
}

.nav-search-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.nav-search-btn {
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-left: none;
  border-radius: 0 3px 3px 0;
  color: #FFFFFF;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
}

/* --- Article page layout --- */
.article-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Breadcrumb */
.breadcrumb {
  padding: 16px 0;
  font-size: 13px;
  color: #999999;
  line-height: 1.65;
}

.breadcrumb a {
  color: #2A6496;
}

.breadcrumb .separator {
  margin: 0 8px;
  color: #cccccc;
}

/* Article Hero Image */
.article-hero {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 8px;
}

.article-hero-caption {
  font-size: 12px;
  color: #999999;
  font-style: italic;
  margin-bottom: 28px;
}

/* Article Header */
.article-edition-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #2A6496;
  margin-bottom: 12px;
}

.article-headline {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.2;
  color: #1e3248;
  margin-bottom: 20px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 24px;
  margin-bottom: 32px;
  border-bottom: 1px solid #eeeeee;
}

.author-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: #2A6496;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 600;
  flex-shrink: 0;
}

.author-info .author-name {
  font-size: 15px;
  font-weight: 600;
  color: #333333;
}

.author-info .author-title {
  font-size: 13px;
  color: #888888;
}

.article-date {
  font-size: 13px;
  color: #999999;
  margin-left: auto;
}

/* Article Body */
.article-body {
  padding-bottom: 40px;
}

.article-body h2 {
  font-size: 22px;
  font-weight: 700;
  color: #1e3248;
  margin-top: 36px;
  margin-bottom: 16px;
  line-height: 1.3;
}

.article-body p {
  margin-bottom: 18px;
  color: #333333;
}

.article-body .ground-truth-callout {
  background: #f5f8fa;
  border-left: 4px solid #3B8BBA;
  padding: 16px 20px;
  margin: 24px 0;
  font-size: 15px;
  line-height: 1.65;
  color: #333333;
}

.article-body .ground-truth-callout strong {
  color: #2A6496;
}

/* Author Sign-off */
.author-signoff {
  font-size: 14px;
  color: #666666;
  font-style: italic;
  padding-top: 32px;
  margin-top: 8px;
  border-top: 1px solid #eeeeee;
}

/* Attribution Block */
.attribution-block {
  background: #F5F5F5;
  border-top: 3px solid #3B8BBA;
  padding: 28px 32px;
  margin: 40px 0;
  border-radius: 0 0 4px 4px;
}

.attribution-block p {
  font-size: 13.5px;
  line-height: 1.65;
  color: #666666;
  margin-bottom: 0;
}

.attribution-block .attribution-footer {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 16px;
}

.attribution-logo {
  height: 28px;
  width: auto;
}

.attribution-block .secu-logo-dark {
  height: 22px;
  width: auto;
}

.attribution-block .attribution-url {
  font-size: 13px;
  color: #2A6496;
  font-weight: 500;
}

/* Section Header (shared) */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 10px;
  border-bottom: 3px solid #3B8BBA;
}

.section-header h2 {
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  color: #1e3248;
  letter-spacing: 0.5px;
}

/* Related Editions */
.related-editions {
  padding: 40px 0 48px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* Newsletter CTA (article page) */
.newsletter-cta {
  background: #1e3248;
  padding: 48px 0;
  text-align: center;
}

.newsletter-cta h2 {
  color: #FFFFFF;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.newsletter-cta p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  margin-bottom: 24px;
}

.newsletter-form {
  display: flex;
  gap: 0;
  max-width: 480px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: 12px 16px;
  font-size: 14px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-right: none;
  background: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
  border-radius: 4px 0 0 4px;
  outline: none;
  font-family: inherit;
}

.newsletter-form input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.newsletter-form button {
  padding: 12px 24px;
  background: #3B8BBA;
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: none;
  border-radius: 0 4px 4px 0;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s;
}

.newsletter-form button:hover {
  background: #2A6496;
}

/* Footer */
.site-footer {
  background: #14212e;
  color: rgba(255, 255, 255, 0.6);
  padding: 48px 0 0;
  line-height: 1.65;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  padding: 3px 0;
}

.footer-col a:hover {
  color: #FFFFFF;
  text-decoration: none;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .gt-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .gt-hero-headline {
    font-size: clamp(16px, 2vw, 28px);
  }
}

@media (max-width: 768px) {
  .gt-cards {
    grid-template-columns: 1fr;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .article-headline {
    font-size: 26px;
  }

  .article-hero {
    height: 260px;
  }

  .splash-card {
    padding: 32px 28px;
  }

  .main-nav {
    display: none;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-form input {
    border-right: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    margin-bottom: 8px;
  }

  .newsletter-form button {
    border-radius: 4px;
  }

  .gt-hero-badge {
    font-size: 9px;
    padding: 3px 8px;
    top: 8px;
    left: 8px;
  }

  .gt-hero-content {
    bottom: 16px;
    left: 12px;
    right: 12px;
  }

  .gt-hero-date span {
    font-size: 12px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}