/* ==========================================================================
   B2E Consulting - Modern Production Design System
   WCAG 2.1 AA Compliant | Mobile-First | Zero Layout Shift (CLS)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens & Root Custom Properties
   -------------------------------------------------------------------------- */
:root {
  /* Brand Colors - WCAG AA Calibrated */
  --color-brand-orange: #f39200;
  --color-brand-orange-hover: #d88100;
  --color-brand-orange-deep: #a84e00;       /* High-contrast text on white (4.9:1) */
  --color-brand-orange-subtle: #fff7ed;
  --color-brand-orange-border: #fed7aa;
  
  /* Executive Navy & Slate Palette */
  --color-navy-950: #0a0f1d;               /* Deepest dark background */
  --color-navy-900: #0f172a;               /* Primary headings & dark chrome */
  --color-navy-800: #1e293b;               /* Deep structural containers */
  --color-navy-700: #334155;               /* Body text on light */
  --color-navy-600: #475569;               /* Secondary text */
  --color-navy-brand: #3b4764;             /* Original B2E brand navy tone */
  --color-navy-500: #64748b;               /* Subtle metadata */
  --color-navy-300: #cbd5e1;               /* Borders on dark */
  --color-navy-200: #e2e8f0;               /* Clean card borders */
  --color-navy-100: #f1f5f9;               /* Soft container fills */
  --color-navy-50: #f8fafc;                /* Light page background */
  --color-white: #ffffff;
  
  /* Functional Accents */
  --color-trust-green: #00b67a;            /* Trustpilot green */
  --color-trust-green-dark: #007c53;
  --color-star-gold: #f59e0b;              /* Google 5-star gold */
  --color-ecovadis-gold: #c29336;
  --color-focus-ring: #0284c7;

  /* Typography Scale (clamp-based fluid typography) */
  --font-family-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-serif: Georgia, Cambria, "Times New Roman", Times, serif;
  
  --font-size-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
  --font-size-sm: clamp(0.875rem, 0.85rem + 0.1vw, 0.9375rem);
  --font-size-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --font-size-lg: clamp(1.125rem, 1.06rem + 0.3vw, 1.25rem);
  --font-size-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --font-size-2xl: clamp(1.5rem, 1.35rem + 0.8vw, 1.875rem);
  --font-size-3xl: clamp(1.875rem, 1.65rem + 1.2vw, 2.375rem);
  --font-size-4xl: clamp(2.25rem, 1.95rem + 1.6vw, 3.125rem);
  --font-size-5xl: clamp(2.625rem, 2.2rem + 2.2vw, 3.75rem);

  /* Spacing Tokens */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout & Elevation */
  --container-max-width: 1240px;
  --container-narrow: 840px;
  --header-height: 74px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.08), 0 2px 6px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 28px -4px rgba(15, 23, 42, 0.12), 0 4px 10px -2px rgba(15, 23, 42, 0.05);
  --shadow-hover: 0 20px 32px -8px rgba(15, 23, 42, 0.15), 0 8px 16px -4px rgba(15, 23, 42, 0.06);

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   2. Reset & Base Elements (Strict Mobile-First, No Scrollbar Disablers)
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-family-primary);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-navy-700);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  /* Strictly DO NOT set overflow: hidden or auto here, which disables sticky headers */
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--color-navy-700);
  background-color: var(--color-white);
  /* Strictly DO NOT set overflow: hidden or auto here */
}

img, picture, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

/* Accessible Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  inset-inline-start: 1rem;
  background: var(--color-navy-900);
  color: var(--color-white);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 9999;
  transition: top var(--transition-fast);
  box-shadow: var(--shadow-lg);
}
.skip-link:focus {
  top: 1rem;
  outline: 3px solid var(--color-brand-orange);
  outline-offset: 2px;
}

/* Focus Ring Standard */
:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   3. Layout Containers & Grid System
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-6);
  }
}

@media (min-width: 1200px) {
  .container {
    padding-inline: var(--space-8);
  }
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-block: var(--space-12);
  position: relative;
}

@media (min-width: 768px) {
  .section {
    padding-block: var(--space-16);
  }
}

@media (min-width: 1024px) {
  .section {
    padding-block: var(--space-20);
  }
}

.section-alt {
  background-color: var(--color-navy-50);
  border-block: 1px solid var(--color-navy-200);
}

.section-dark {
  background-color: var(--color-navy-950);
  color: var(--color-navy-100);
}

.section-dark h2,
.section-dark h3,
.section-dark strong {
  color: var(--color-white);
}

.section-dark p {
  color: #cbd5e1;
}

.section-navy {
  background-color: var(--color-navy-brand);
  color: var(--color-white);
}

.section-navy p {
  color: rgba(255, 255, 255, 0.9);
}

/* --------------------------------------------------------------------------
   4. Typography Utilities & Eyebrows
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-navy-900);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

.lead-text {
  font-size: var(--font-size-lg);
  line-height: 1.6;
  color: var(--color-navy-600);
}

.section-header {
  margin-bottom: var(--space-10);
}

.section-header.text-center {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brand-orange-deep); /* Guaranteed accessible contrast >= 4.8:1 */
  margin-bottom: var(--space-2);
}

.section-dark .eyebrow,
.section-navy .eyebrow {
  color: #ffb74d; /* High contrast on dark */
}

.badge-tag {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  background-color: var(--color-navy-100);
  color: var(--color-navy-800);
}

.badge-tag-accent {
  background-color: var(--color-brand-orange-subtle);
  color: var(--color-brand-orange-deep);
  border: 1px solid var(--color-brand-orange-border);
}

/* --------------------------------------------------------------------------
   5. Buttons & Interactive Links
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 48px;
  padding: 0.75rem 1.625rem;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  text-align: center;
  white-space: nowrap;
}

/* Primary Button: Brand orange background with crisp dark slate text (WCAG 8:1+) */
.btn-primary {
  background-color: var(--color-brand-orange);
  color: var(--color-navy-950);
  border-color: var(--color-brand-orange);
  box-shadow: 0 2px 4px rgba(243, 146, 0, 0.2);
}
.btn-primary:hover {
  background-color: var(--color-brand-orange-hover);
  border-color: var(--color-brand-orange-hover);
  color: #000000;
  box-shadow: 0 4px 12px rgba(243, 146, 0, 0.35);
  transform: translateY(-1px);
}

/* Secondary Button: Clean slate outline */
.btn-secondary {
  background-color: transparent;
  color: var(--color-navy-900);
  border-color: var(--color-navy-300);
}
.btn-secondary:hover {
  background-color: var(--color-navy-100);
  border-color: var(--color-navy-600);
  color: var(--color-navy-950);
}

/* Dark Section Secondary Button */
.btn-secondary-dark {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.25);
}
.btn-secondary-dark:hover {
  background-color: rgba(255, 255, 255, 0.18);
  border-color: var(--color-white);
  color: var(--color-white);
}

.btn-sm {
  min-height: 40px;
  padding: 0.5rem 1rem;
  font-size: var(--font-size-sm);
}

.btn-arrow svg {
  transition: transform var(--transition-fast);
}
.btn-arrow:hover svg {
  transform: translateX(4px);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-weight: 600;
  color: var(--color-brand-orange-deep);
  transition: gap var(--transition-fast), color var(--transition-fast);
}
.text-link:hover {
  color: var(--color-brand-orange-hover);
  gap: 0.625rem;
}

/* --------------------------------------------------------------------------
   6. Pinned Sticky Header & Glassmorphism Navigation
   Direct child of body, strictly position: sticky; top: 0
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-navy-200);
  transition: box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.site-header.is-scrolled {
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
  background-color: rgba(255, 255, 255, 0.98);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Brand Logo sits at the start and acts as home link */
.brand-logo-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  min-height: 48px;
  padding: 0.25rem 0;
}

.brand-logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

/* Desktop Navigation */
.desktop-nav {
  display: none;
  align-items: center;
  gap: var(--space-6);
}

@media (min-width: 1024px) {
  .desktop-nav {
    display: flex;
  }
}

.nav-links-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-navy-700);
  min-height: 48px;
  position: relative;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-navy-950);
  background-color: var(--color-navy-50);
}

.nav-link.active {
  color: var(--color-brand-orange-deep);
  background-color: var(--color-brand-orange-subtle);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 6px;
  left: 0.875rem;
  right: 0.875rem;
  height: 2px;
  background-color: var(--color-brand-orange);
  border-radius: 2px;
}

.header-cta-group {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Mobile Hamburger Button (Ergonomic 48px touch target) */
.mobile-menu-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--color-navy-200);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-navy-900);
  cursor: pointer;
  padding: 0;
}

@media (min-width: 1024px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
}

/* --------------------------------------------------------------------------
   7. Mobile Navigation Drawer (Accessible, High-Contrast)
   -------------------------------------------------------------------------- */
.mobile-drawer-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1010;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.mobile-drawer-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  inset-inline-end: 0;
  width: min(85vw, 360px);
  height: 100vh;
  background-color: var(--color-white);
  z-index: 1020;
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: -4px 0 24px rgba(15, 23, 42, 0.15);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  overflow-y: auto;
}

.mobile-drawer-backdrop.is-open .mobile-drawer {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-navy-200);
}

.mobile-drawer-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-navy-200);
  background-color: var(--color-navy-50);
  color: var(--color-navy-900);
  cursor: pointer;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-navy-800);
  min-height: 48px;
}

.mobile-nav-link:hover,
.mobile-nav-link:focus {
  background-color: var(--color-navy-100);
  color: var(--color-navy-950);
}

.mobile-nav-link.active {
  background-color: var(--color-brand-orange-subtle);
  color: var(--color-brand-orange-deep);
  border-inline-start: 4px solid var(--color-brand-orange);
}

.mobile-drawer-footer {
  margin-top: var(--space-8);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-navy-200);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* --------------------------------------------------------------------------
   8. Hero Sections
   -------------------------------------------------------------------------- */
.hero-wrapper {
  position: relative;
  background-color: var(--color-navy-950);
  color: var(--color-white);
  padding-block: clamp(3rem, 5vw + 1rem, 6rem);
  overflow: clip;
}

.hero-background-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.18;
  object-fit: cover;
  pointer-events: none;
}

.hero-gradient-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 15, 29, 0.95) 0%, rgba(15, 23, 42, 0.85) 60%, rgba(59, 71, 100, 0.75) 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 880px;
}

.hero-content h1 {
  color: var(--color-white);
  margin-bottom: var(--space-4);
  font-size: var(--font-size-4xl);
  line-height: 1.15;
}

.hero-headline-highlight {
  display: block;
  color: var(--color-brand-orange);
  margin-top: 0.25rem;
}

.hero-subheading {
  font-size: var(--font-size-lg);
  line-height: 1.6;
  color: #cbd5e1;
  margin-bottom: var(--space-8);
  max-width: 720px;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

/* --------------------------------------------------------------------------
   9. Credentials & Social Proof Trust Strip
   -------------------------------------------------------------------------- */
.trust-strip {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-navy-200);
  padding-block: var(--space-6);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .trust-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .trust-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-6);
  }
}

.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  transition: transform var(--transition-fast);
}

.trust-item:hover {
  transform: translateY(-2px);
}

.trust-number {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-navy-900);
  line-height: 1.1;
  margin-bottom: 0.25rem;
}

.trust-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-navy-600);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.trust-rating-stars {
  display: flex;
  align-items: center;
  gap: 2px;
  color: var(--color-star-gold);
  margin-bottom: 0.25rem;
}

/* --------------------------------------------------------------------------
   10. Feature & Architecture Cards (Grid & Flex Layouts)
   -------------------------------------------------------------------------- */
.card {
  background-color: var(--color-white);
  border: 1px solid var(--color-navy-200);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card:hover {
  border-color: var(--color-brand-orange-border);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.card-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--color-brand-orange-subtle);
  color: var(--color-brand-orange-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  flex-shrink: 0;
}

.card h3 {
  margin-bottom: var(--space-2);
  font-size: var(--font-size-lg);
}

.card p {
  color: var(--color-navy-600);
  font-size: var(--font-size-base);
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

/* Service Rows & Grids */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

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

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

/* Sectors Grid */
.sectors-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .sectors-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
  }
}

.sector-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: var(--space-5);
  background-color: var(--color-white);
  border: 1px solid var(--color-navy-200);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.sector-card:hover {
  border-color: var(--color-brand-orange);
  background-color: var(--color-brand-orange-subtle);
  transform: translateY(-2px);
}

.sector-card .card-icon-wrap {
  margin-bottom: var(--space-3);
  width: 44px;
  height: 44px;
}

.sector-card h3 {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-navy-900);
}

/* Model Comparison: Built Differently */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

@media (min-width: 768px) {
  .comparison-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.comparison-col {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
}

.comparison-traditional {
  background-color: var(--color-navy-50);
  border: 1px dashed var(--color-navy-300);
}

.comparison-b2e {
  background-color: var(--color-navy-950);
  color: var(--color-white);
  border: 2px solid var(--color-brand-orange);
  box-shadow: var(--shadow-lg);
  position: relative;
}

.comparison-badge {
  position: absolute;
  top: -14px;
  inset-inline-start: var(--space-6);
  background-color: var(--color-brand-orange);
  color: var(--color-navy-950);
  font-weight: 700;
  font-size: var(--font-size-xs);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}

.comparison-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.comparison-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.comparison-item svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   11. Case Studies & Teasers
   -------------------------------------------------------------------------- */
.case-study-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-navy-200);
  border-radius: var(--radius-lg);
  overflow: clip;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.case-study-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.case-study-media-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: clip;
  background-color: var(--color-navy-800);
}

.case-study-media-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.case-study-card:hover .case-study-media-wrap img {
  transform: scale(1.03);
}

.case-study-tag-overlay {
  position: absolute;
  top: var(--space-3);
  inset-inline-start: var(--space-3);
  background-color: rgba(15, 23, 42, 0.85);
  color: var(--color-white);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  backdrop-filter: blur(4px);
}

.case-study-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.case-study-body h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.case-study-metric-callout {
  display: flex;
  gap: var(--space-4);
  padding-block: var(--space-3);
  margin-block: var(--space-3);
  border-block: 1px solid var(--color-navy-200);
}

.case-study-metric {
  display: flex;
  flex-direction: column;
}

.case-study-metric-num {
  font-weight: 800;
  font-size: var(--font-size-lg);
  color: var(--color-brand-orange-deep);
}

.case-study-metric-desc {
  font-size: var(--font-size-xs);
  color: var(--color-navy-600);
}

/* Sector Filter Bar */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  justify-content: center;
}

.filter-btn {
  background-color: var(--color-navy-100);
  color: var(--color-navy-700);
  border: 1px solid var(--color-navy-200);
  padding: 0.5rem 1.125rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--font-size-sm);
  cursor: pointer;
  min-height: 48px;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  background-color: var(--color-navy-200);
  color: var(--color-navy-950);
}

.filter-btn.active {
  background-color: var(--color-navy-900);
  color: var(--color-white);
  border-color: var(--color-navy-900);
}

/* --------------------------------------------------------------------------
   12. Thought Leadership & Insights Cards
   -------------------------------------------------------------------------- */
.insights-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

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

@media (min-width: 1024px) {
  .insights-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.insight-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-navy-200);
  border-radius: var(--radius-md);
  overflow: clip;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
}

.insight-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-brand-orange-border);
}

.insight-media {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background-color: var(--color-navy-800);
}

.insight-body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.insight-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-xs);
  color: var(--color-navy-500);
  margin-bottom: var(--space-2);
}

.insight-meta time {
  font-weight: 500;
}

.insight-body h3 {
  font-size: var(--font-size-base);
  line-height: 1.4;
  margin-bottom: var(--space-3);
}

.insight-body p {
  font-size: var(--font-size-sm);
  color: var(--color-navy-600);
  line-height: 1.5;
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

/* --------------------------------------------------------------------------
   13. Team & Leadership Profiles
   -------------------------------------------------------------------------- */
.team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

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

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

.team-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-navy-200);
  border-radius: var(--radius-md);
  overflow: clip;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.team-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.team-photo-wrap {
  width: 100%;
  aspect-ratio: 1 / 1;
  background-color: var(--color-navy-100);
  position: relative;
  overflow: clip;
}

.team-photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-body {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.team-body h3 {
  font-size: var(--font-size-base);
  margin-bottom: 0.125rem;
}

.team-role {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-brand-orange-deep);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2);
}

.team-bio {
  font-size: var(--font-size-sm);
  color: var(--color-navy-600);
  line-height: 1.5;
  flex-grow: 1;
}

.team-badge-pill {
  margin-top: var(--space-3);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-navy-brand);
  background-color: var(--color-navy-100);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   14. Values, ED&I & Sustainability Grids
   -------------------------------------------------------------------------- */
.values-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

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

@media (min-width: 1024px) {
  .values-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.value-card {
  padding: var(--space-6);
  background: var(--color-white);
  border: 1px solid var(--color-navy-200);
  border-radius: var(--radius-md);
  position: relative;
  overflow: clip;
}

.value-num {
  position: absolute;
  top: 1rem;
  inset-inline-end: 1rem;
  font-size: var(--font-size-3xl);
  font-weight: 900;
  color: var(--color-navy-100);
  line-height: 1;
  pointer-events: none;
}

.value-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-2);
  color: var(--color-navy-900);
}

/* ED&I Numbers Strip */
.edi-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .edi-stat-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
  }
}

.edi-stat-box {
  background-color: var(--color-white);
  border: 1px solid var(--color-navy-200);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  text-align: center;
}

.edi-stat-box .number {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-brand-orange-deep);
  margin-bottom: 0.25rem;
}

/* --------------------------------------------------------------------------
   15. Interactive Delivery Calculator / Scoping Widget
   -------------------------------------------------------------------------- */
.calculator-widget {
  background-color: var(--color-white);
  border: 1px solid var(--color-navy-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-8);
  margin-top: var(--space-8);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .calc-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.calc-control-group {
  margin-bottom: var(--space-4);
}

.calc-label {
  display: block;
  font-weight: 600;
  color: var(--color-navy-900);
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
}

.calc-select,
.calc-input {
  width: 100%;
  min-height: 48px;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--color-navy-300);
  border-radius: var(--radius-sm);
  background-color: var(--color-white);
  font-size: var(--font-size-base);
  color: var(--color-navy-900);
}

.calc-results-box {
  background-color: var(--color-navy-950);
  color: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.calc-results-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-4);
}

.calc-saving-headline {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-brand-orange);
  margin-bottom: 0.25rem;
}

/* --------------------------------------------------------------------------
   16. Accessible FAQ Accordions
   -------------------------------------------------------------------------- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: var(--container-narrow);
  margin-inline: auto;
}

.faq-item {
  border: 1px solid var(--color-navy-200);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  overflow: clip;
  transition: border-color var(--transition-fast);
}

.faq-item.is-open {
  border-color: var(--color-brand-orange-border);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5);
  background: none;
  border: none;
  text-align: start;
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-navy-900);
  cursor: pointer;
  min-height: 48px;
}

.faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  transition: transform var(--transition-normal);
  color: var(--color-brand-orange-deep);
}

.faq-item.is-open .faq-icon {
  transform: rotate(180deg);
}

.faq-content {
  padding: 0 var(--space-5) var(--space-5) var(--space-5);
  color: var(--color-navy-700);
  line-height: 1.6;
  font-size: var(--font-size-sm);
  display: none;
}

.faq-item.is-open .faq-content {
  display: block;
}

/* --------------------------------------------------------------------------
   17. Forms & Contact Interface
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.form-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-navy-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
}

@media (min-width: 640px) {
  .form-card {
    padding: var(--space-8);
  }
}

.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--color-navy-900);
  margin-bottom: var(--space-1);
}

.form-label span.req {
  color: #dc2626;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  min-height: 48px;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-navy-300);
  border-radius: var(--radius-sm);
  background-color: var(--color-white);
  color: var(--color-navy-900);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-brand-orange);
  outline: none;
  box-shadow: 0 0 0 3px rgba(243, 146, 0, 0.2);
}

.form-help {
  font-size: var(--font-size-xs);
  color: var(--color-navy-500);
  margin-top: 0.25rem;
}

.form-alert {
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  font-weight: 600;
  margin-bottom: var(--space-4);
  display: none;
}

.form-alert.success {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background-color: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

/* Contact Details Info Sidebar */
.contact-info-card {
  background-color: var(--color-navy-950);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-info-card h3 {
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.contact-detail-item {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  align-items: flex-start;
}

.contact-detail-item svg {
  color: var(--color-brand-orange);
  flex-shrink: 0;
  margin-top: 3px;
}

.contact-detail-item p {
  color: #cbd5e1;
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   18. Comprehensive Multi-Column Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-navy-950);
  color: #cbd5e1;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
  margin-top: auto;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

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

@media (min-width: 1024px) {
  .footer-top-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
}

.footer-col-brand p {
  font-size: var(--font-size-sm);
  color: #94a3b8;
  margin-top: var(--space-3);
  margin-bottom: var(--space-4);
  max-width: 320px;
}

.footer-col h4 {
  color: var(--color-white);
  font-size: var(--font-size-sm);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-link {
  color: #94a3b8;
  font-size: var(--font-size-sm);
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  transition: color var(--transition-fast);
}

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

/* Accreditation Badges in Footer (Lazy loaded, no CLS) */
.footer-accreditations {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-block: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.footer-ratings-cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-6);
}

.footer-rating-box {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer-rating-text {
  display: flex;
  flex-direction: column;
}

.footer-rating-score {
  font-weight: 700;
  color: var(--color-white);
  font-size: var(--font-size-sm);
}

.footer-rating-source {
  font-size: var(--font-size-xs);
  color: #94a3b8;
}

.footer-badges-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-5);
}

.footer-badge-img {
  height: 44px;
  width: auto;
  object-fit: contain;
  filter: brightness(0.95);
  transition: filter var(--transition-fast);
}

.footer-badge-img:hover {
  filter: brightness(1.1);
}

/* Footer Bottom Legal Line */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  font-size: var(--font-size-xs);
  color: #64748b;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-legal-links a {
  color: #64748b;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.footer-legal-links a:hover {
  color: var(--color-brand-orange);
}

/* --------------------------------------------------------------------------
   19. Back to Top Button
   class="back-to-top", fixed to bottom-right corner, >= 48px, translated aria-label
   -------------------------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  inset-inline-end: 1.5rem;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--color-navy-900);
  color: var(--color-brand-orange);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 950;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--transition-normal);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--color-brand-orange);
  color: var(--color-navy-950);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(243, 146, 0, 0.4);
}

/* --------------------------------------------------------------------------
   20. Accessibility & Print Media
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  .site-header,
  .mobile-drawer,
  .mobile-drawer-backdrop,
  .back-to-top,
  .btn,
  .filter-bar {
    display: none !important;
  }
  
  body {
    color: #000;
    background: #fff;
  }
  
  .card, .case-study-card {
    border: 1px solid #ccc;
    box-shadow: none !important;
  }
}