/* ==========================================================================
   VERTEX SOLUTIONS - COMPONENTS & LAYOUT CSS
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. HEADER & NAVIGATION
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-gray-100);
  transition: var(--transition-standard);
  height: var(--header-height);
}

.site-header.is-sticky {
  height: var(--header-height-sticky);
  box-shadow: var(--shadow-sticky);
  border-bottom-color: rgba(15, 76, 129, 0.1);
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(8px);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo img {
  height: 48px;
  width: auto;
  transition: var(--transition-standard);
}

.site-header.is-sticky .brand-logo img {
  height: 42px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.75rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-navy);
  padding: 0.5rem 0;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: var(--transition-standard);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-corporate-blue);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-corporate-blue);
}

/* Solutions Dropdown Mega-Menu */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  width: 320px;
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-top: 3px solid var(--color-corporate-blue);
  box-shadow: var(--shadow-card);
  padding: 0.75rem 0;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-standard);
  border-radius: 0 0 6px 6px;
}

.nav-item-has-dropdown:hover .nav-dropdown,
.nav-item-has-dropdown:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-link {
  display: flex;
  flex-direction: column;
  padding: 0.65rem 1.25rem;
  color: var(--color-gray-800);
  transition: var(--transition-standard);
}

.dropdown-link:hover {
  background-color: var(--color-offwhite);
  color: var(--color-corporate-blue);
  padding-left: 1.5rem;
}

.dropdown-link-title {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-navy);
}

.dropdown-link:hover .dropdown-link-title {
  color: var(--color-corporate-blue);
}

.dropdown-link-desc {
  font-size: 0.775rem;
  color: var(--color-gray-600);
  margin-top: 2px;
}

/* Mobile Navigation Drawer Base (Hidden by default on all screens) */
.mobile-nav-drawer {
  display: none;
}

/* Header Action Button */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* --------------------------------------------------------------------------
   2. BUTTONS (HIGH-TECH KINETIC ANIMATIONS & GLOW EFFECTS)
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.85rem 1.85rem;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  z-index: 1;
  transition: all 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: transform, box-shadow;
}

/* Shimmer / light-sweep beam across buttons on hover */
.btn::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -60%;
  width: 40%;
  height: 200%;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.35) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: rotate(25deg);
  opacity: 0;
  transition: all 0.65s cubic-bezier(0.19, 1, 0.22, 1);
  pointer-events: none;
  z-index: 2;
}

.btn:hover::after {
  left: 140%;
  opacity: 1;
}

/* Primary High-Tech Button */
.btn-primary {
  background: linear-gradient(135deg, #0F4C81 0%, #0284C7 100%);
  color: #FFFFFF;
  border-color: rgba(0, 194, 255, 0.4);
  box-shadow: 0 4px 15px rgba(2, 132, 199, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0284C7 0%, #00C2FF 100%);
  color: #FFFFFF;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(0, 194, 255, 0.4), 0 0 15px rgba(0, 194, 255, 0.25);
  border-color: #00C2FF;
}

.btn-primary:active {
  transform: translateY(-1px) scale(0.99);
}

/* Secondary Tech Button */
.btn-secondary {
  background: rgba(15, 76, 129, 0.04);
  color: var(--color-navy);
  border-color: rgba(15, 76, 129, 0.2);
  backdrop-filter: blur(4px);
}

.btn-secondary:hover {
  background: var(--color-navy);
  color: #FFFFFF;
  border-color: var(--color-navy);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 20px rgba(11, 25, 44, 0.2);
}

.btn-secondary:active {
  transform: translateY(-1px) scale(0.99);
}

/* Light Button */
.btn-light {
  background-color: #FFFFFF;
  color: var(--color-navy);
  border-color: #E2E8F0;
  box-shadow: 0 4px 12px rgba(11, 25, 44, 0.06);
}

.btn-light:hover {
  background-color: #FFFFFF;
  color: var(--color-corporate-blue);
  border-color: var(--color-cyan-bright);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 20px rgba(0, 194, 255, 0.2);
}

/* Outline Light Button (Dark Hero & Footer backgrounds) */
.btn-outline-light {
  background: rgba(255, 255, 255, 0.04);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(6px);
}

.btn-outline-light:hover {
  border-color: var(--color-cyan-bright);
  background: rgba(0, 194, 255, 0.12);
  color: var(--color-cyan-bright);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 0 20px rgba(0, 194, 255, 0.3);
}

.btn-outline-light:active {
  transform: translateY(-1px) scale(0.99);
}

/* Small Button Variant */
.btn-sm {
  padding: 0.6rem 1.25rem;
  font-size: 0.78rem;
  border-radius: 5px;
}

/* Animated Button Arrow Icon */
.btn-icon {
  width: 16px;
  height: 16px;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.btn:hover .btn-icon {
  transform: translateX(5px);
}

/* Mobile Menu Toggle */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-navy);
}

.mobile-nav-toggle svg {
  width: 28px;
  height: 28px;
}

/* --------------------------------------------------------------------------
   3. HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-xl) 0;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content {
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-cyan-bright);
  background-color: rgba(2, 132, 199, 0.15);
  border: 1px solid rgba(0, 194, 255, 0.3);
  padding: 0.35rem 0.85rem;
  border-radius: 3px;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero-title {
  color: var(--color-white);
  font-size: clamp(2.2rem, 3.8vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

.hero-title span {
  color: var(--color-cyan-bright);
}

.hero-subtitle {
  color: var(--color-gray-300);
  font-size: 1.15rem;
  line-height: 1.7;
  margin-bottom: 2.25rem;
  max-width: 620px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.hero-image-wrapper {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.hero-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Technical Accent Lines on Hero Frame */
.hero-image-wrapper::before {
  content: "CRITICAL INFRASTRUCTURE // LIVE TELEMETRY";
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 3;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--color-cyan-bright);
  background: rgba(11, 25, 44, 0.85);
  padding: 4px 10px;
  border-left: 2px solid var(--color-lime-bright);
  backdrop-filter: blur(4px);
}

/* --------------------------------------------------------------------------
   4. CAPABILITY STRIP
   -------------------------------------------------------------------------- */
.capability-strip {
  background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
  border-bottom: 1px solid var(--color-gray-200);
  padding: 2rem 0;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
}

.capability-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-right: 1px solid var(--color-gray-200);
  border-radius: 8px;
  transition: var(--transition-standard);
  background: transparent;
}

.capability-item:last-child {
  border-right: none;
}

.capability-item:hover {
  background-color: var(--color-white);
  box-shadow: 0 8px 20px rgba(15, 76, 129, 0.08);
  transform: translateY(-2px);
}

.capability-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(15, 76, 129, 0.12) 0%, rgba(0, 194, 255, 0.15) 100%);
  border: 1px solid rgba(15, 76, 129, 0.15);
  border-radius: 10px;
  color: var(--color-corporate-blue);
  transition: var(--transition-standard);
}

.capability-item:hover .capability-icon {
  background: linear-gradient(135deg, var(--color-corporate-blue) 0%, var(--color-cyan) 100%);
  color: var(--color-white);
  border-color: transparent;
  transform: scale(1.08) rotate(-3deg);
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.3);
}

.capability-icon svg {
  width: 24px;
  height: 24px;
}

.capability-text {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-navy);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.35;
}

/* --------------------------------------------------------------------------
   5. ABOUT / INTRODUCTION EDITORIAL SECTION (HIGH-TECH OVERVIEW)
   -------------------------------------------------------------------------- */
.section-about {
  position: relative;
  padding: 6rem 0;
  background: radial-gradient(circle at 10% 20%, rgba(2, 132, 199, 0.03) 0%, transparent 50%),
              radial-gradient(circle at 90% 80%, rgba(132, 204, 22, 0.03) 0%, transparent 50%),
              #FFFFFF;
  overflow: hidden;
}

.about-bg-decoration {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.about-glow-orb {
  position: absolute;
  top: 20%;
  left: -100px;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(0, 194, 255, 0.08) 0%, transparent 70%);
  filter: blur(40px);
}

.about-tech-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(15, 76, 129, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 76, 129, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
}

.about-editorial-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

/* --- Left: Image Visual Container & HUD Frame --- */
.about-visual-container {
  position: relative;
  display: flex;
  flex-direction: column;
}

.about-image-frame {
  position: relative;
  background: #0B192C;
  padding: 8px;
  border-radius: 12px;
  border: 1px solid rgba(15, 76, 129, 0.2);
  box-shadow: 0 25px 50px -12px rgba(11, 25, 44, 0.25), 0 0 0 1px rgba(0, 194, 255, 0.15);
  overflow: visible;
  height: 440px;
}

.about-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 8px;
  filter: contrast(1.04) brightness(0.96);
}

/* Corner bracket tech accents */
.about-frame-corner {
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: var(--color-cyan-bright);
  pointer-events: none;
  z-index: 4;
}

.about-frame-corner.top-left {
  top: -2px;
  left: -2px;
  border-top: 3px solid var(--color-cyan-bright);
  border-left: 3px solid var(--color-cyan-bright);
}

.about-frame-corner.top-right {
  top: -2px;
  right: -2px;
  border-top: 3px solid var(--color-cyan-bright);
  border-right: 3px solid var(--color-cyan-bright);
}

.about-frame-corner.bottom-left {
  bottom: -2px;
  left: -2px;
  border-bottom: 3px solid var(--color-cyan-bright);
  border-left: 3px solid var(--color-cyan-bright);
}

.about-frame-corner.bottom-right {
  bottom: -2px;
  right: -2px;
  border-bottom: 3px solid var(--color-cyan-bright);
  border-right: 3px solid var(--color-cyan-bright);
}

/* HUD Header top tag */
.about-hud-header {
  position: absolute;
  top: 18px;
  left: 18px;
  right: 18px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(4, 13, 30, 0.88);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 194, 255, 0.35);
  padding: 0.45rem 0.95rem;
  border-radius: 6px;
}

.hud-pulse-dot {
  width: 7px;
  height: 7px;
  background: var(--color-lime-bright);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-lime-bright);
  animation: dotPulse 2s infinite;
  flex-shrink: 0;
}

.hud-title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #FFFFFF;
  text-transform: uppercase;
}

.hud-status {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--color-cyan-bright);
  background: rgba(0, 194, 255, 0.15);
  padding: 2px 7px;
  border-radius: 3px;
  letter-spacing: 0.05em;
}

/* Floating Metric Badges */
.about-floating-stat {
  position: absolute;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(15, 76, 129, 0.15);
  padding: 0.75rem 1.15rem;
  border-radius: 10px;
  box-shadow: 0 12px 30px rgba(11, 25, 44, 0.14);
  backdrop-filter: blur(8px);
  transition: transform 0.3s ease;
}

.about-floating-stat:hover {
  transform: translateY(-3px);
}

.stat-experience {
  bottom: 25px;
  left: -20px;
  border-left: 4px solid var(--color-corporate-blue);
}

.stat-uptime {
  bottom: -20px;
  right: 15px;
  background: #0B192C;
  border: 1px solid rgba(0, 194, 255, 0.3);
  border-left: 4px solid var(--color-lime-bright);
  color: #FFFFFF;
  box-shadow: 0 16px 35px rgba(0, 0, 0, 0.35);
}

.stat-icon-wrap {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(15, 76, 129, 0.1);
  color: var(--color-corporate-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon-wrap svg {
  width: 18px;
  height: 18px;
}

.uptime-icon {
  background: rgba(132, 204, 22, 0.15);
  color: var(--color-lime-bright);
}

.stat-val {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-navy);
  line-height: 1.1;
}

.stat-uptime .stat-val {
  color: var(--color-lime-bright);
}

.stat-lbl {
  display: block;
  font-size: 0.72rem;
  color: var(--color-gray-600);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 1px;
}

.stat-uptime .stat-lbl {
  color: rgba(255, 255, 255, 0.75);
}

/* Pill Tags Below Frame */
.about-tech-pills {
  display: flex;
  gap: 0.75rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.tech-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--color-navy);
  background: #F1F5F9;
  border: 1px solid #E2E8F0;
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  letter-spacing: 0.04em;
  transition: all 0.2s ease;
}

.tech-pill:hover {
  background: #E2E8F0;
  color: var(--color-corporate-blue);
  border-color: var(--color-corporate-blue);
}

.tech-pill svg {
  width: 10px;
  height: 10px;
  color: var(--color-corporate-blue);
  fill: currentColor;
}

/* --- Right: Content & Spec Layout --- */
.about-content-card {
  display: flex;
  flex-direction: column;
}

.eyebrow-accent {
  display: inline-block;
  width: 14px;
  height: 3px;
  background: var(--color-lime);
  border-radius: 2px;
}

.about-main-title {
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 2.7vw, 2.45rem);
  font-weight: 900;
  line-height: 1.12;
  color: var(--color-navy);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-corporate-blue) 0%, var(--color-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-alt {
  color: var(--color-navy);
  position: relative;
}

.about-lead-text {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-gray-600);
  margin-bottom: 1.35rem;
}

/* Engineering Pillars Grid */
.about-pillars-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.pillar-card {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1rem 1.1rem;
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 10px;
  border-left: 3px solid var(--color-corporate-blue);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.pillar-card:hover {
  background: #FFFFFF;
  border-color: var(--color-cyan);
  border-left-color: var(--color-cyan-bright);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(15, 76, 129, 0.08);
}

.pillar-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(15, 76, 129, 0.08);
  color: var(--color-corporate-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  transition: transform 0.2s ease;
}

.pillar-card:hover .pillar-icon {
  transform: scale(1.08);
  background: var(--color-corporate-blue);
  color: #FFFFFF;
}

.pillar-icon svg {
  width: 17px;
  height: 17px;
}

.pillar-info h4 {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.pillar-info p {
  font-size: 0.78rem;
  color: var(--color-gray-600);
  line-height: 1.45;
  margin: 0;
}

/* CTA Action Row */
.about-cta-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-glow {
  box-shadow: 0 4px 15px rgba(15, 76, 129, 0.3);
}

.btn-glow:hover {
  box-shadow: 0 8px 25px rgba(15, 76, 129, 0.45);
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .about-editorial-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }
  .about-pillars-grid {
    grid-template-columns: 1fr;
  }
  .stat-experience {
    left: 10px;
  }
}

/* --------------------------------------------------------------------------
   6. CORE SOLUTIONS SECTION
   -------------------------------------------------------------------------- */
.section-solutions {
  padding: var(--space-2xl) 0;
  background-color: var(--color-offwhite);
}

.solution-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 3rem;
}

.solution-item-row {
  display: grid;
  grid-template-columns: 80px 1.2fr 1fr 180px;
  align-items: center;
  gap: 2rem;
  padding: 2rem;
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-left: 5px solid var(--color-corporate-blue);
  border-radius: 8px;
  transition: var(--transition-standard);
  position: relative;
}

.solution-item-row:hover {
  border-left-color: var(--color-cyan-bright);
  box-shadow: 0 15px 35px rgba(11, 25, 44, 0.08);
  transform: translateX(6px);
}

.solution-num {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-corporate-blue);
  opacity: 0.8;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: rgba(15, 76, 129, 0.06);
  border-radius: 50%;
}

.solution-content h3 {
  font-size: 1.3rem;
  color: var(--color-navy);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.solution-content p {
  font-size: 0.9375rem;
  margin-bottom: 0.75rem;
  color: var(--color-gray-600);
}

.solution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.solution-chip {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--color-corporate-blue);
  background-color: rgba(15, 76, 129, 0.08);
  padding: 0.2rem 0.65rem;
  border-radius: 4px;
  font-weight: 600;
}

.solution-thumb {
  height: 120px;
  border-radius: 6px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.1);
}

.solution-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.solution-item-row:hover .solution-thumb img {
  transform: scale(1.08);
}

/* --------------------------------------------------------------------------
   7. WHY VERTEX PRINCIPLES (HIGH-TECH INDUSTRIAL CARDS)
   -------------------------------------------------------------------------- */
.section-why {
  position: relative;
  padding: 6rem 0;
  background-color: #F8FAFC;
  overflow: hidden;
}

.why-bg-grid {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 80% 20%, rgba(2, 132, 199, 0.05) 0%, transparent 45%),
    radial-gradient(circle at 10% 80%, rgba(132, 204, 22, 0.04) 0%, transparent 45%),
    linear-gradient(to right, rgba(15, 76, 129, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 76, 129, 0.03) 1px, transparent 1px);
  background-size: auto, auto, 40px 40px, 40px 40px;
  pointer-events: none;
}

.why-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.why-badge-counter {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-end;
  background: #0B192C;
  border: 1px solid rgba(0, 194, 255, 0.3);
  border-right: 4px solid var(--color-lime-bright);
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(11, 25, 44, 0.12);
}

.why-badge-counter .counter-num {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--color-lime-bright);
  line-height: 1;
}

.why-badge-counter .counter-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #FFFFFF;
  margin-top: 3px;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-top: 2rem;
  position: relative;
  z-index: 1;
}

.principle-card {
  padding: 2rem 2rem 1.75rem 2rem;
  background-color: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-top: 3px solid var(--color-corporate-blue);
  border-radius: 12px;
  position: relative;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 15px rgba(11, 25, 44, 0.03);
  overflow: hidden;
}

.principle-card-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: radial-gradient(circle at 50% 0%, rgba(2, 132, 199, 0.1) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.principle-corner-reticle {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 8px;
  height: 8px;
  border-top: 2px solid rgba(15, 76, 129, 0.2);
  border-right: 2px solid rgba(15, 76, 129, 0.2);
  transition: all 0.3s ease;
}

.principle-card:hover {
  box-shadow: 0 20px 35px -10px rgba(15, 76, 129, 0.12), 0 0 0 1px var(--color-cyan-bright);
  border-top-color: var(--color-cyan-bright);
  transform: translateY(-6px);
}

.principle-card:hover .principle-card-glow {
  opacity: 1;
}

.principle-card:hover .principle-corner-reticle {
  border-color: var(--color-cyan-bright);
  transform: scale(1.3);
}

.principle-icon-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.4rem;
}

.principle-icon-box {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(15, 76, 129, 0.08) 0%, rgba(2, 132, 199, 0.12) 100%);
  border: 1px solid rgba(15, 76, 129, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-corporate-blue);
  transition: all 0.3s ease;
}

.principle-card:hover .principle-icon-box {
  background: linear-gradient(135deg, var(--color-corporate-blue) 0%, var(--color-cyan) 100%);
  color: #FFFFFF;
  transform: scale(1.06) rotate(3deg);
  box-shadow: 0 6px 16px rgba(2, 132, 199, 0.25);
}

.principle-icon-box svg {
  width: 24px;
  height: 24px;
}

.principle-tech-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-corporate-blue);
  background: rgba(15, 76, 129, 0.06);
  border: 1px solid rgba(15, 76, 129, 0.12);
  padding: 0.3rem 0.65rem;
  border-radius: 4px;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: all 0.25s ease;
}

.principle-card:hover .principle-tech-tag {
  background: rgba(0, 194, 255, 0.12);
  border-color: rgba(0, 194, 255, 0.35);
  color: var(--color-corporate-blue);
}

.principle-card h3 {
  font-family: var(--font-heading);
  font-size: 1.08rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  color: var(--color-navy);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.principle-card p {
  color: var(--color-gray-600);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
  flex: 1;
}

/* Metric Pill Footer */
.principle-footer-metric {
  margin-top: auto;
  padding-top: 0.85rem;
  border-top: 1px dashed #E2E8F0;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--color-gray-700);
  letter-spacing: 0.02em;
}

.metric-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-lime);
  box-shadow: 0 0 6px var(--color-lime);
}

@media (max-width: 992px) {
  .principles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .principles-grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   8. ENGINEERING PROCESS SECTION ("HOW WE DELIVER")
   -------------------------------------------------------------------------- */
.section-process {
  padding: var(--space-2xl) 0;
  background-color: var(--color-navy);
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(2, 132, 199, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(132, 204, 22, 0.08) 0%, transparent 40%);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.process-stepper {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
  margin-top: 3.5rem;
  position: relative;
}

/* Connecting Process Line across cards */
.process-stepper::before {
  content: "";
  position: absolute;
  top: 45px;
  left: 5%;
  right: 5%;
  height: 2px;
  background: linear-gradient(90deg, rgba(0, 194, 255, 0.2) 0%, rgba(132, 204, 22, 0.4) 50%, rgba(0, 194, 255, 0.2) 100%);
  z-index: 1;
}

.process-step {
  position: relative;
  z-index: 2;
  padding: 2rem 1.5rem;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-top: 4px solid var(--color-cyan-bright);
  border-radius: 12px;
  transition: var(--transition-standard);
  display: flex;
  flex-direction: column;
}

.process-step:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(0, 194, 255, 0.4);
  border-top-color: var(--color-lime-bright);
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 20px rgba(0, 194, 255, 0.15);
}

.process-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.process-icon-box {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(15, 76, 129, 0.8) 0%, rgba(2, 132, 199, 0.6) 100%);
  border: 2px solid var(--color-cyan-bright);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  box-shadow: 0 4px 15px rgba(0, 194, 255, 0.3);
  transition: var(--transition-standard);
}

.process-step:hover .process-icon-box {
  background: linear-gradient(135deg, var(--color-lime-bright) 0%, var(--color-lime) 100%);
  border-color: var(--color-white);
  color: var(--color-navy);
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(132, 204, 22, 0.4);
}

.process-icon-box svg {
  width: 26px;
  height: 26px;
}

.process-step-num {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-lime-bright);
  opacity: 0.9;
}

.process-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--color-cyan-bright);
  background: rgba(2, 132, 199, 0.15);
  border: 1px solid rgba(0, 194, 255, 0.25);
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  width: fit-content;
  margin-bottom: 0.85rem;
  text-transform: uppercase;
}

.process-step h4 {
  color: var(--color-white);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.process-step p {
  color: var(--color-gray-300);
  font-size: 0.875rem;
  margin-bottom: 0;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   9. CONTACT FORM & LEAD GEN
   -------------------------------------------------------------------------- */
.section-contact {
  padding: var(--space-2xl) 0;
  background-color: var(--color-offwhite);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3.5rem;
  align-items: start;
}

.contact-info-panel {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: 3rem 2.5rem;
  border-radius: 4px;
}

.contact-info-panel h3 {
  color: var(--color-white);
  font-size: 1.6rem;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.contact-info-panel p {
  color: var(--color-gray-300);
  margin-bottom: 2rem;
}

.contact-meta-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  list-style: none;
}

.contact-meta-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-meta-icon {
  width: 24px;
  height: 24px;
  color: var(--color-cyan-bright);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-meta-content strong {
  display: block;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-gray-300);
  margin-bottom: 2px;
}

.contact-meta-content a,
.contact-meta-content span {
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5;
}

/* Contact Form UI */
.contact-form-card {
  background-color: var(--color-white);
  padding: 3rem 2.5rem;
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-card);
}

.form-group {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-label {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-navy);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-gray-800);
  background-color: var(--color-offwhite);
  border: 1px solid var(--color-gray-200);
  border-radius: 4px;
  transition: var(--transition-standard);
}

.form-control:focus {
  outline: none;
  background-color: var(--color-white);
  border-color: var(--color-corporate-blue);
  box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.12);
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

/* Spam Honeypot Field */
.hp-field {
  display: none !important;
  visibility: hidden !important;
}

.form-status-msg {
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  border-radius: 4px;
  font-size: 0.9375rem;
  font-weight: 500;
  display: none;
}

.form-status-msg.is-success {
  display: block;
  background-color: #ECFDF5;
  color: #065F46;
  border: 1px solid #A7F3D0;
}

.form-status-msg.is-error {
  display: block;
  background-color: #FEF2F2;
  color: #991B1B;
  border: 1px solid #FCA5A5;
}

/* --------------------------------------------------------------------------
   10. FOOTER COMPONENT (BLENDED IMAGE BACKGROUND & INDUSTRIAL FINISH)
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: #040D1E;
  background-image: 
    linear-gradient(180deg, rgba(4, 13, 30, 0.96) 0%, rgba(6, 16, 30, 0.92) 50%, rgba(4, 13, 30, 0.98) 100%),
    radial-gradient(circle at 15% 20%, rgba(0, 194, 255, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(132, 204, 22, 0.06) 0%, transparent 40%),
    url('../images/hero_datacenter.jpg');
  background-size: auto, auto, auto, cover;
  background-position: center, center, center, center;
  background-repeat: no-repeat;
  color: var(--color-gray-300);
  padding: 5rem 0 2rem 0;
  border-top: 3px solid var(--color-corporate-blue);
  position: relative;
  overflow: hidden;
}

/* Cyber grid overlay on footer */
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 194, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 194, 255, 0.025) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
  z-index: 0;
}

.site-footer .container {
  position: relative;
  z-index: 1;
}

/* Footer Brand Logo seamless on dark background */
.footer-brand-logo {
  display: inline-flex;
  align-items: center;
  background: transparent;
  padding: 0;
  border: none;
  box-shadow: none;
  transition: all 0.3s ease;
}

.footer-brand-logo:hover {
  transform: translateY(-2px);
}

.footer-brand-logo img {
  height: 48px;
  width: auto;
  display: block;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr 1.1fr 1.2fr;
  gap: 3.5rem;
  margin-bottom: 3.5rem;
}

.footer-col h4 {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  position: relative;
  padding-bottom: 0.6rem;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2.5px;
  background: linear-gradient(90deg, var(--color-cyan-bright) 0%, var(--color-lime-bright) 100%);
  border-radius: 2px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--color-gray-300);
  font-size: 0.9375rem;
  transition: var(--transition-standard);
}

.footer-links a:hover {
  color: var(--color-cyan-bright);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--color-gray-300);
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom-links a {
  color: var(--color-gray-300);
}

.footer-bottom-links a:hover {
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   11. RESPONSIVE MEDIA QUERIES
   -------------------------------------------------------------------------- */
@media (max-width: 1200px) {
  .capability-grid { grid-template-columns: repeat(3, 1fr); }
  .capability-item:nth-child(3) { border-right: none; }
  .capability-item:nth-child(4), .capability-item:nth-child(5) { border-top: 1px solid var(--color-gray-200); }
  .process-stepper { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 992px) {
  .site-header { height: 72px; }
  .main-nav { display: none; }
  .mobile-nav-toggle { display: block; }

  /* Mobile Slide Navigation Drawer */
  .mobile-nav-drawer {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    height: calc(100vh - 72px);
    background-color: var(--color-white);
    padding: 2rem;
    overflow-y: auto;
    display: none;
    flex-direction: column;
    gap: 1.5rem;
    box-shadow: var(--shadow-card);
    z-index: 999;
  }

  .mobile-nav-drawer.is-active {
    display: flex;
  }

  .mobile-nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
  }

  .mobile-nav-link {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-navy);
  }

  .hero-grid { grid-template-columns: 1fr; gap: 2rem; }
  .about-editorial-grid { grid-template-columns: 1fr; }
  .solution-item-row { grid-template-columns: 1fr; text-align: left; }
  .principles-grid { grid-template-columns: 1fr; }
  .process-stepper { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
}

@media (max-width: 576px) {
  .capability-grid { grid-template-columns: 1fr; }
  .capability-item { border-right: none; border-bottom: 1px solid var(--color-gray-200); }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}