/* ==========================================================================
   INFRAVIX INFRASTRUCTURE PRIVATE LIMITED
   Dynamic Corporate Design System - High-Engagement UI/UX
   Features: Hero Auto-Carousel, Infinite Marquee, Before/After Slider,
   Scroll-Reveals, Word Rotator & Micro-Interactions
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Brand Corporate Colors */
  --color-navy-dark: #0a1f38;
  --color-navy: #0f2b48;
  --color-navy-light: #183c66;
  --color-blue: #0284c7;
  --color-blue-subtle: #f0f7ff;
  --color-amber: #b45309;
  --color-amber-light: #fef3c7;
  --color-amber-accent: #d97706;

  /* Neutral Surface Palette */
  --color-white: #ffffff;
  --color-slate-50: #f8fafc;
  --color-slate-100: #f1f5f9;
  --color-slate-200: #e2e8f0;
  --color-slate-300: #cbd5e1;
  --color-slate-400: #94a3b8;
  --color-slate-500: #64748b;
  --color-slate-600: #475569;
  --color-slate-700: #334155;
  --color-slate-800: #1e293b;
  --color-slate-900: #0f172a;

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Elevation Shadows */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 6px 18px -2px rgba(15, 23, 42, 0.07), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.09), 0 4px 12px -2px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 24px 50px -12px rgba(15, 23, 42, 0.14);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 9999px;

  /* Transitions */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--color-white);
  color: var(--color-slate-700);
}

body {
  font-family: var(--font-body);
  color: var(--color-slate-700);
  background-color: var(--color-white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
}

/* Subtle Interactive Background Grid */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(15, 23, 42, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 7px;
}
::-webkit-scrollbar-track {
  background: var(--color-slate-100);
}
::-webkit-scrollbar-thumb {
  background: var(--color-slate-300);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-navy);
}

/* Layout Utilities */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

.section {
  padding: 6rem 0;
  position: relative;
  z-index: 1;
}
.section.bg-subtle {
  background-color: var(--color-slate-50);
  border-top: 1px solid var(--color-slate-200);
  border-bottom: 1px solid var(--color-slate-200);
}

/* Typography Hierarchy */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-amber);
  margin-bottom: 0.75rem;
}

.kicker::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-amber);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.6); opacity: 0.5; }
}

.section-heading {
  font-family: var(--font-heading);
  font-size: clamp(2.1rem, 3.6vw, 3rem);
  font-weight: 800;
  color: var(--color-navy-dark);
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}

.section-subheading {
  font-size: 1.12rem;
  color: var(--color-slate-500);
  max-width: 650px;
  line-height: 1.75;
}

.section-header-block {
  margin-bottom: 3.5rem;
}
.section-header-block.text-center {
  text-align: center;
}
.section-header-block.text-center .section-subheading {
  margin: 0 auto;
}

/* ==========================================================================
   SCROLL REVEAL & INTERACTIVE MOTION SYSTEM
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* Interactive Hover Lift on Cards */
.clean-card {
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
}

.clean-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-slate-300);
}

/* ==========================================================================
   TOP BAR & NAVIGATION
   ========================================================================== */
.corp-topbar {
  background: var(--color-navy-dark);
  color: var(--color-slate-300);
  font-size: 0.82rem;
  padding: 9px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.corp-topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar-contact-group {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.topbar-contact-item {
  display: flex;
  align-items: center;
  gap: 7px;
}
.topbar-contact-item svg {
  color: #38bdf8;
  flex-shrink: 0;
}

.topbar-meta-group {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.topbar-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: #86efac;
}
.topbar-status::before {
  content: '';
  width: 6px;
  height: 6px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse-dot 1.8s infinite;
}

/* Navigation Bar */
.corp-navbar {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-slate-200);
  transition: all 0.25s ease;
  padding: 1rem 0;
}

.corp-navbar.scrolled {
  padding: 0.75rem 0;
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.08);
}

.corp-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.corp-brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.corp-brand-logo-img {
  height: 68px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  display: block;
  transition: transform 0.22s ease, height 0.22s ease;
}

.corp-brand-link:hover .corp-brand-logo-img {
  transform: scale(1.03);
}

.corp-navbar.scrolled .corp-brand-logo-img {
  height: 52px;
}

.corp-brand-logo-svg {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.22s ease;
}

.corp-brand-link:hover .corp-brand-logo-svg {
  transform: scale(1.05);
}

.corp-brand-text {
  display: flex;
  flex-direction: column;
}

.brand-company-name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-navy-dark);
  letter-spacing: -0.02em;
  line-height: 1.05;
}

.brand-tagline-quote {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 700;
  color: #dc2626;
  font-style: italic;
  letter-spacing: 0.02em;
  line-height: 1.2;
  margin-top: 2px;
}

.brand-legal-tag {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-slate-500);
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

/* Primary Nav Menu List & Items */
.corp-nav-menu {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.corp-nav-item {
  position: relative;
  display: flex;
  align-items: center;
}

.corp-nav-link {
  font-family: var(--font-heading);
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--color-slate-700);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all 0.18s ease;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  white-space: nowrap;
}

.corp-nav-link:hover {
  color: var(--color-navy);
  background: rgba(15, 43, 72, 0.05);
}

.corp-nav-link.active {
  color: var(--color-navy);
  background: rgba(2, 132, 199, 0.08);
  font-weight: 700;
}

.corp-nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 12px;
  right: 12px;
  height: 2.5px;
  background: var(--color-accent-blue);
  border-radius: 2px 2px 0 0;
}

.nav-chevron {
  transition: transform 0.22s ease, color 0.22s ease;
  color: var(--color-slate-400);
  flex-shrink: 0;
}

.corp-nav-item.has-dropdown:hover .nav-chevron,
.corp-nav-item.has-dropdown:focus-within .nav-chevron {
  transform: rotate(180deg);
  color: var(--color-accent-blue);
}

/* Desktop Dropdown Menus */
.corp-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 330px;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.14), 0 2px 8px rgba(15, 23, 42, 0.05);
  border: 1px solid rgba(226, 232, 240, 0.95);
  padding: 0.65rem 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.22s cubic-bezier(0.16, 1, 0.3, 1), transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.22s;
  z-index: 1050;
  pointer-events: none;
}

/* Invisible bridge so mouse does not disconnect between link and menu */
.corp-dropdown-menu::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 0;
  right: 0;
  height: 14px;
}

.corp-nav-item.has-dropdown:hover .corp-dropdown-menu,
.corp-nav-item.has-dropdown:focus-within .corp-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.dropdown-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 9px 12px;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.15s ease, transform 0.15s ease;
}

.dropdown-item:hover {
  background: #f8fafc;
  transform: translateX(3px);
}

.dropdown-icon-pill {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(2, 132, 199, 0.08);
  color: var(--color-accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  transition: background 0.15s ease, color 0.15s ease;
}

.dropdown-item:hover .dropdown-icon-pill {
  background: var(--color-navy);
  color: #ffffff;
}

.dropdown-item-content {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.dropdown-title {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-navy-dark);
  line-height: 1.25;
}

.dropdown-desc {
  font-size: 0.74rem;
  color: var(--color-slate-500);
  line-height: 1.3;
  margin-top: 2px;
}

.dropdown-footer {
  border-top: 1px solid var(--color-slate-100);
  margin-top: 6px;
  padding: 8px 12px 3px;
}

.dropdown-view-all {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-accent-blue);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.15s ease, transform 0.15s ease;
}

.dropdown-view-all:hover {
  color: var(--color-navy);
  transform: translateX(3px);
}

.corp-nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-contact-quick {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-navy);
  padding: 9px 18px;
  border: 1.5px solid var(--color-slate-300);
  border-radius: var(--radius-pill);
  transition: all 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn-contact-quick:hover {
  border-color: var(--color-navy);
  background: var(--color-slate-50);
  transform: translateY(-1px);
}

.btn-primary-corp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: #ffffff;
  background: var(--color-navy);
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 12px rgba(15, 43, 72, 0.25);
  transition: all 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary-corp:hover {
  background: var(--color-navy-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(15, 43, 72, 0.35);
}

.nav-toggle-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 8px;
  border: 1.5px solid var(--color-slate-200);
  border-radius: var(--radius-sm);
  background: #ffffff;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-toggle-btn:hover {
  background: var(--color-slate-50);
  border-color: var(--color-slate-300);
}

.nav-toggle-btn span {
  display: block;
  width: 22px;
  height: 2.2px;
  background: var(--color-navy-dark);
  border-radius: 2px;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
}

.nav-toggle-btn.open span:nth-child(1) {
  transform: translateY(7.2px) rotate(45deg);
}
.nav-toggle-btn.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle-btn.open span:nth-child(3) {
  transform: translateY(-7.2px) rotate(-45deg);
}

/* Enhanced Mobile Navigation Drawer */
.corp-mobile-drawer {
  position: fixed;
  inset: 0;
  top: 0;
  height: 100vh;
  width: 100%;
  background: #ffffff;
  z-index: 2500;
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: -10px 0 35px rgba(15, 23, 42, 0.2);
}

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

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.5rem;
  border-bottom: 1px solid var(--color-slate-200);
  background: #ffffff;
  position: sticky;
  top: 0;
  z-index: 10;
}

.mobile-drawer-logo {
  height: 52px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
}

.mobile-drawer-close-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--color-slate-200);
  background: var(--color-slate-50);
  color: var(--color-navy-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.mobile-drawer-close-btn:hover {
  background: var(--color-slate-200);
  transform: rotate(90deg);
}

.mobile-drawer-body {
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
}

.corp-mobile-drawer .corp-nav-link {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-navy-dark);
  padding: 12px 14px;
  border-radius: 8px;
  border-bottom: 1px solid var(--color-slate-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.corp-mobile-drawer .corp-nav-link.active {
  background: rgba(2, 132, 199, 0.08);
  color: var(--color-accent-blue);
  border-bottom-color: transparent;
}

.corp-mobile-drawer .corp-nav-link.active::after {
  display: none;
}

.mobile-sub-menu {
  padding: 0.35rem 0.5rem 0.85rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  background: #f8fafc;
  border-radius: 8px;
  margin: 0.25rem 0 0.5rem;
}

.mobile-sub-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-slate-700);
  padding: 6px 10px;
  border-radius: 6px;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color 0.15s ease, background 0.15s ease;
}

.mobile-sub-link:hover {
  color: var(--color-navy);
  background: #ffffff;
}

.mobile-drawer-actions {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--color-slate-200);
  background: #f8fafc;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mobile-drawer-actions .btn-contact-quick,
.mobile-drawer-actions .btn-primary-corp {
  width: 100%;
  justify-content: center;
  padding: 12px;
  font-size: 0.95rem;
}

.mobile-drawer-footer {
  padding: 1rem 1.5rem 1.5rem;
  background: #f8fafc;
  font-size: 0.76rem;
  color: var(--color-slate-500);
  line-height: 1.45;
  border-top: 1px solid var(--color-slate-200);
}

/* ==========================================================================
   EXECUTIVE HERO SECTION (VIBRANT FULL-HD INFRASTRUCTURE VIDEO & HUD)
   ========================================================================== */
.editorial-hero, .cinematic-hero-section {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  background-color: #071526;
  background-image: url('../images/hero-expressway.jpg');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  color: #ffffff;
  overflow: hidden;
  padding: 6.5rem 0 5.5rem;
  border-bottom: 2px solid rgba(2, 132, 199, 0.35);
}

/* Automatic Hero Background Image Slider */
.hero-slider-backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  overflow: hidden;
  background-color: #071526;
  pointer-events: none;
}

.hero-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  opacity: 0;
  transform: scale(1);
  transition: opacity 1.2s ease-in-out, transform 6s cubic-bezier(0.1, 0.9, 0.2, 1);
  will-change: opacity, transform;
  filter: brightness(0.92) contrast(1.05) saturate(1.1);
  pointer-events: none;
}

.hero-slide.active {
  opacity: 1;
  transform: scale(1.06);
  z-index: 1;
}

/* Hero Slider Navigation Arrows */
.hero-slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(8, 22, 40, 0.65);
  border: 1px solid rgba(56, 189, 248, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.35);
}

.hero-slider-arrow:hover {
  background: #0284c7;
  border-color: #38bdf8;
  transform: translateY(-50%) scale(1.1);
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.5);
}

.hero-slider-arrow:active {
  transform: translateY(-50%) scale(0.95);
}

.hero-slider-arrow-prev {
  left: 1.5rem;
}

.hero-slider-arrow-next {
  right: 1.5rem;
}

@media (max-width: 900px) {
  .hero-slider-arrow {
    display: none;
  }
}

/* Auto-Slide Progress Bar */
.hero-slider-progress-track {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.15);
  z-index: 10;
  overflow: hidden;
}

.hero-slider-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #0284c7, #38bdf8, #f59e0b);
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.8);
  transition: width 0.05s linear;
}

/* Hero Live Active Sector Tag inside Kicker */
.hero-active-sector-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-left: 8px;
  padding: 3px 10px;
  background: rgba(2, 132, 199, 0.35);
  border: 1px solid rgba(56, 189, 248, 0.5);
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 800;
  color: #7dd3fc;
  letter-spacing: 0.06em;
  transition: all 0.3s ease;
}

.hero-slide-counter {
  padding: 1px 6px;
  background: rgba(15, 23, 42, 0.65);
  border-radius: 4px;
  font-size: 0.68rem;
  color: #f59e0b;
  font-weight: 800;
  margin-right: 4px;
  letter-spacing: 0.04em;
}

/* Slider Controls & Sector Navigator Group */
.hero-slider-nav-group {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(8, 22, 40, 0.82);
  border: 1px solid rgba(56, 189, 248, 0.35);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 4px 6px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
}

.hero-slider-pills {
  display: flex;
  align-items: center;
  gap: 4px;
}

.btn-slider-pill {
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  color: #cbd5e1;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-slider-pill:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}

.btn-slider-pill.active {
  background: #0284c7;
  color: #ffffff;
  box-shadow: 0 2px 10px rgba(2, 132, 199, 0.5);
}

.btn-slider-pause-toggle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  cursor: pointer;
  font-size: 0.82rem;
  transition: all 0.2s ease;
  margin-left: 2px;
}

.btn-slider-pause-toggle:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.06);
}

/* Background Video Backdrop */
.hero-video-backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}

.hero-bg-video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
  filter: brightness(0.96) contrast(1.06) saturate(1.1);
  transition: opacity 0.4s ease;
}

/* Cinema-Grade Translucent Scrim (Keeps Left Text Crisp, Leaves Right Video Bright & Visible) */
.hero-video-overlay, .cinematic-hero-overlay {
  position: absolute;
  inset: 0;
  background: 
    linear-gradient(90deg, rgba(7, 20, 36, 0.74) 0%, rgba(7, 20, 36, 0.48) 52%, rgba(7, 20, 36, 0.20) 100%),
    linear-gradient(180deg, rgba(7, 20, 36, 0.25) 0%, rgba(7, 20, 36, 0.62) 100%);
  z-index: 2;
  pointer-events: none;
}

/* Engineering Crosshairs / Watermark */
.editorial-hero::before {
  content: 'CAD REF: INFRA-2026-HQ · PATNA, BIHAR · 1080P TELEMETRY';
  position: absolute;
  top: 1.25rem;
  right: 2.5rem;
  font-family: var(--font-heading);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: rgba(226, 232, 240, 0.75);
  pointer-events: none;
  z-index: 4;
}

.cinematic-hero-container {
  position: relative;
  z-index: 3;
  width: 100%;
}

.cinematic-hero-content {
  max-width: 860px;
}

/* Institutional Live Kicker Pill */
.hero-exec-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(15, 34, 58, 0.75);
  border: 1px solid rgba(56, 189, 248, 0.4);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #e0f2fe;
  margin-bottom: 1.35rem;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.hero-exec-kicker .kicker-pulse-dot {
  width: 7px;
  height: 7px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse-dot 1.8s infinite;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.3);
}

/* Executive Corporate Headline */
.hero-exec-headline {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 4.6vw, 4.2rem);
  font-weight: 900;
  color: #ffffff;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 1.35rem;
  text-shadow: 0 3px 12px rgba(0, 0, 0, 0.65);
}

.hero-exec-headline .hero-headline-accent {
  color: #38bdf8;
  background: linear-gradient(135deg, #7dd3fc 0%, #38bdf8 60%, #0284c7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  text-shadow: none;
}

/* Executive Subtitle */
.hero-exec-desc {
  font-size: 1.14rem;
  color: #e2e8f0;
  line-height: 1.75;
  max-width: 680px;
  margin-bottom: 2.25rem;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

/* Action Buttons & Video Feeds Row */
.hero-exec-cta-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.25rem;
}

.btn-exec-primary {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 800;
  color: #ffffff;
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 18px rgba(2, 132, 199, 0.45);
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-exec-primary:hover {
  background: linear-gradient(135deg, #0369a1 0%, #075985 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(2, 132, 199, 0.6);
}

.btn-exec-call {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.96rem;
  font-weight: 700;
  color: #ffffff;
  background: rgba(15, 34, 58, 0.7);
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 13px 24px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-exec-call:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: #38bdf8;
  color: #ffffff;
  transform: translateY(-2px);
}

/* Video Switcher & Playback Control Group */
.hero-video-switcher-group {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(8, 22, 40, 0.75);
  border: 1px solid rgba(56, 189, 248, 0.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 4px 6px;
  border-radius: var(--radius-pill);
}

.btn-video-feed-switch {
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  color: #cbd5e1;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-video-feed-switch:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.btn-video-feed-switch.active {
  background: #0284c7;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.4);
}

.btn-video-play-toggle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s ease;
  margin-left: 2px;
}

.btn-video-play-toggle:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.05);
}

/* Executive Trust Strip (Live Counter Cards) */
.hero-exec-trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
  padding-top: 1.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.trust-exec-card {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(8, 22, 40, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.trust-exec-card:hover {
  transform: translateY(-2px);
  border-color: rgba(56, 189, 248, 0.5);
  background: rgba(12, 28, 48, 0.85);
}

.trust-exec-card:nth-child(1) { border-left: 3px solid #38bdf8; }
.trust-exec-card:nth-child(2) { border-left: 3px solid #22c55e; }
.trust-exec-card:nth-child(3) { border-left: 3px solid #fbbf24; }
.trust-exec-card:nth-child(4) { border-left: 3px solid #818cf8; }

.trust-exec-icon {
  font-size: 1.25rem;
  line-height: 1;
  padding-top: 2px;
}

.trust-exec-body {
  display: flex;
  flex-direction: column;
}

.trust-exec-val {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.1;
}

.trust-exec-lbl {
  font-size: 0.73rem;
  font-weight: 600;
  color: #94a3b8;
  line-height: 1.25;
  margin-top: 3px;
}


.page-hero-banner {
  position: relative;
  background-color: #f8fafc;
  background-image:
    radial-gradient(ellipse at 85% 15%, rgba(2, 132, 199, 0.08) 0%, transparent 55%),
    radial-gradient(ellipse at 12% 85%, rgba(217, 119, 6, 0.06) 0%, transparent 50%),
    linear-gradient(to right, rgba(15, 43, 72, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 43, 72, 0.035) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 44px 44px, 44px 44px;
  background-position: 0 0, 0 0, center center, center center;
  padding: 4.75rem 0 3.75rem;
  border-bottom: 1px solid var(--color-slate-200);
  overflow: hidden;
}

.page-hero-banner::before {
  content: 'INFRAVIX CONSULTANCY ENGINE · REGISTERED PATNA HQ';
  position: absolute;
  top: 1.25rem;
  right: 2.5rem;
  font-family: var(--font-heading);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: rgba(100, 116, 139, 0.45);
  pointer-events: none;
}

.page-hero-banner-inner {
  position: relative;
  z-index: 2;
}

/* Breadcrumb Navigation Trail */
.breadcrumb-trail {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--color-slate-200);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.bc-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--color-slate-500);
  transition: color 0.15s ease;
  text-decoration: none;
}
.bc-link:hover {
  color: var(--color-navy);
}

.bc-sep {
  color: var(--color-slate-300);
  font-size: 0.8rem;
}

.bc-current {
  color: var(--color-navy);
  font-weight: 700;
}

/* Kicker Badge */
.page-banner-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-blue-subtle);
  border: 1px solid rgba(2, 132, 199, 0.25);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 1rem;
}

.page-banner-kicker .kicker-dot {
  width: 7px;
  height: 7px;
  background: #16a34a;
  border-radius: 50%;
  animation: pulse-dot 1.8s infinite;
}

/* Heading & Subtitle */
.page-banner-title {
  font-family: var(--font-heading);
  font-size: clamp(2.3rem, 4.2vw, 3.4rem);
  font-weight: 800;
  color: var(--color-navy-dark);
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 1.25rem;
  max-width: 900px;
}

.page-banner-desc {
  font-size: 1.12rem;
  color: var(--color-slate-600);
  line-height: 1.8;
  max-width: 840px;
  margin-bottom: 2rem;
}

/* Quick Credentials / Telemetry Strip */
.page-banner-meta-strip {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(226, 232, 240, 0.9);
}

.banner-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-slate-700);
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.04);
  transition: all 0.2s ease;
}

.banner-meta-item:hover {
  border-color: var(--color-navy);
  color: var(--color-navy);
  transform: translateY(-1px);
}

.banner-meta-item svg {
  color: var(--color-navy);
  flex-shrink: 0;
}

/* ==========================================================================
   INFINITE PARTNER & SECTOR MARQUEE TICKER (LIVE MOVEMENT)
   ========================================================================== */
.marquee-ticker-section {
  background: var(--color-navy-dark);
  color: #ffffff;
  padding: 18px 0;
  overflow: hidden;
  position: relative;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marqueeScroll 35s linear infinite;
}
.marquee-track:hover {
  animation-play-state: paused;
}

@keyframes marqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 1.2px;
  color: var(--color-slate-300);
  padding: 0 2rem;
  white-space: nowrap;
}

.marquee-item svg {
  color: var(--color-amber-accent);
}

.marquee-item span.highlight {
  color: #38bdf8;
}

/* ==========================================================================
   INTERACTIVE BEFORE / AFTER SLIDER (CAD BLUEPRINT VS EXECUTED INFRA)
   ========================================================================== */
.comparison-slider-wrapper {
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-top: 2rem;
}

.comparison-container {
  position: relative;
  width: 100%;
  height: 480px;
  overflow: hidden;
  user-select: none;
}

.comparison-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.comparison-image-cad {
  width: 100%;
  height: 100%;
  background: #0f172a;
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: 0;
  left: 0;
}

.comparison-overlay-clip {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 50%;
  overflow: hidden;
  z-index: 2;
  border-right: 3px solid #ffffff;
  box-shadow: 4px 0 16px rgba(0, 0, 0, 0.4);
}

.comparison-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: #ffffff;
  border: 2px solid var(--color-navy);
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: ew-resize;
  z-index: 5;
  transition: transform 0.15s ease;
}
.comparison-handle:hover {
  transform: translate(-50%, -50%) scale(1.15);
}

.comparison-label-pill {
  position: absolute;
  top: 1.5rem;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  z-index: 3;
}
.label-left {
  left: 1.5rem;
  background: rgba(15, 23, 42, 0.85);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.4);
}
.label-right {
  right: 1.5rem;
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-navy);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   ABOUT & EDITORIAL STORY (MAGAZINE SPREAD)
   ========================================================================== */
.about-spread-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 4rem;
  align-items: center;
}

.about-photo-column {
  position: relative;
}

.about-main-photo {
  height: 480px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-slate-200);
}
.about-main-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.about-main-photo:hover img {
  transform: scale(1.04);
}

.about-floating-stamp {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  background: var(--color-navy);
  color: #ffffff;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  text-align: center;
  min-width: 160px;
  border: 2px solid #ffffff;
}
.stamp-val {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: #38bdf8;
  line-height: 1;
}
.stamp-lbl {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-top: 4px;
}

.about-narrative h2 {
  font-family: var(--font-heading);
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--color-navy-dark);
  line-height: 1.25;
  margin-bottom: 1.25rem;
}

.about-narrative p {
  font-size: 1.05rem;
  color: var(--color-slate-600);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.about-pillar-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.pillar-card-box {
  background: var(--color-slate-50);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  transition: all 0.2s ease;
}
.pillar-card-box:hover {
  background: #ffffff;
  border-color: var(--color-blue);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.pillar-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.pillar-desc {
  font-size: 0.82rem;
  color: var(--color-slate-500);
  line-height: 1.6;
}

/* ==========================================================================
   SERVICES (BESPOKE SEGMENTED TABS)
   ========================================================================== */
.services-tabbed-container {
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

.service-tab-headers {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-slate-200);
  margin-bottom: 2.5rem;
}

.btn-service-tab {
  padding: 10px 20px;
  background: var(--color-slate-50);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-slate-600);
  white-space: nowrap;
  transition: all 0.2s ease;
}

.btn-service-tab:hover {
  background: var(--color-slate-100);
  color: var(--color-navy);
}

.btn-service-tab.active {
  background: var(--color-navy);
  color: #ffffff;
  border-color: var(--color-navy);
}

.service-tab-panel {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.service-tab-panel.active {
  display: grid;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-content-left h3 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-navy-dark);
  margin-bottom: 1rem;
}

.panel-content-left p {
  font-size: 1.02rem;
  color: var(--color-slate-600);
  line-height: 1.8;
  margin-bottom: 1.75rem;
}

.panel-checklist {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.panel-check-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-slate-800);
}

.panel-check-row svg {
  color: var(--color-blue);
  flex-shrink: 0;
}

.panel-preview-card {
  background: var(--color-slate-50);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.panel-meta-title {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-navy);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.panel-spec-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.panel-spec-tag {
  font-size: 0.8rem;
  font-weight: 600;
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  color: var(--color-slate-700);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
}

/* ==========================================================================
   INTERACTIVE PROJECT ESTIMATOR (LIGHT FINANCIAL TOOL)
   ========================================================================== */
.estimator-clean-tool {
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  padding: 3rem;
  box-shadow: var(--shadow-md);
}

.estimator-split-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3.5rem;
  align-items: start;
}

.estimator-control-stack {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.control-field-block {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.control-field-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-navy-dark);
}

.badge-scope-unit {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-navy);
  background: var(--color-blue-subtle);
  border: 1px solid rgba(2, 132, 199, 0.2);
  padding: 3px 12px;
  border-radius: var(--radius-pill);
}

.sector-button-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.btn-sector-select {
  padding: 12px 10px;
  background: var(--color-slate-50);
  border: 1.5px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-slate-700);
  text-align: center;
  transition: all 0.15s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}

.btn-sector-select:hover, .btn-sector-select.active {
  background: var(--color-blue-subtle);
  border-color: var(--color-blue);
  color: var(--color-navy);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.clean-scope-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  background: var(--color-slate-200);
  border-radius: 4px;
  outline: none;
  cursor: pointer;
}
.clean-scope-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-navy);
  border: 3px solid #ffffff;
  box-shadow: 0 2px 6px rgba(10, 31, 56, 0.3);
  cursor: pointer;
  transition: transform 0.15s ease;
}
.clean-scope-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

/* Estimator Output Card */
.estimator-output-panel {
  background: var(--color-slate-50);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.output-hero-box {
  background: #ffffff;
  border: 1.5px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
}

.output-hero-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-slate-500);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.output-hero-amount {
  font-family: var(--font-heading);
  font-size: clamp(2.3rem, 3.6vw, 3rem);
  font-weight: 800;
  color: var(--color-navy);
  line-height: 1.1;
}

.output-hero-note {
  font-size: 0.82rem;
  color: var(--color-slate-500);
  margin-top: 6px;
}

/* ==========================================================================
   SECTORS SHOWCASE (MAGAZINE GALLERY CARDS)
   ========================================================================== */
.sectors-editorial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.sector-editorial-card {
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s var(--ease);
  display: flex;
  flex-direction: column;
}

.sector-editorial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-slate-300);
}

.sector-photo-holder {
  height: 230px;
  position: relative;
  overflow: hidden;
}

.sector-photo-holder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.sector-editorial-card:hover .sector-photo-holder img {
  transform: scale(1.06);
}

.sector-authority-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(255, 255, 255, 0.95);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-navy);
  box-shadow: var(--shadow-xs);
}

.sector-card-text {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.sector-card-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-navy-dark);
  margin-bottom: 0.75rem;
}

.sector-card-summary {
  font-size: 0.92rem;
  color: var(--color-slate-600);
  line-height: 1.7;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.sector-card-chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.sector-chip-label {
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--color-slate-100);
  color: var(--color-slate-700);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
}

.sector-learn-link {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-navy);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}
.sector-editorial-card:hover .sector-learn-link {
  color: var(--color-blue);
  transform: translateX(4px);
}

/* ==========================================================================
   5-STAGE METHODOLOGY LIFECYCLE
   ========================================================================== */
.lifecycle-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
}

.lifecycle-card {
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  padding: 2rem 1.25rem;
  text-align: center;
  box-shadow: var(--shadow-xs);
  transition: all 0.2s ease;
}

.lifecycle-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-navy);
  box-shadow: var(--shadow-md);
}

.lifecycle-step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-blue-subtle);
  border: 1.5px solid var(--color-blue);
  color: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  margin: 0 auto 1.25rem;
  transition: all 0.2s ease;
}
.lifecycle-card:hover .lifecycle-step-num {
  background: var(--color-navy);
  color: #ffffff;
}

.lifecycle-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-navy-dark);
  margin-bottom: 0.5rem;
}

.lifecycle-text {
  font-size: 0.85rem;
  color: var(--color-slate-500);
  line-height: 1.6;
}

/* ==========================================================================
   CORPORATE ACCREDITATION STRIP
   ========================================================================== */
.accreditation-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1rem;
}

.accreditation-box {
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  text-align: center;
  box-shadow: var(--shadow-xs);
  transition: transform 0.2s ease;
}
.accreditation-box:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.accreditation-name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 2px;
}

.accreditation-sub {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-slate-400);
  text-transform: uppercase;
}

/* ==========================================================================
   CALL TO ACTION BLOCK
   ========================================================================== */
.corp-cta-block {
  background: linear-gradient(135deg, var(--color-navy-dark), var(--color-navy));
  border-radius: var(--radius-xl);
  padding: 4.5rem 3rem;
  text-align: center;
  color: #ffffff;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.corp-cta-title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 3.8vw, 3.2rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.corp-cta-desc {
  font-size: 1.1rem;
  color: var(--color-slate-300);
  max-width: 650px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

.corp-cta-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-cta-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-navy-dark);
  background: #ffffff;
  padding: 15px 32px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-md);
  transition: all 0.2s ease;
}
.btn-cta-white:hover {
  background: var(--color-slate-50);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-cta-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  transition: all 0.2s ease;
}
.btn-cta-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
}

/* ==========================================================================
   INTERACTIVE 3D CIVIL ENGINEERING INSPECTOR & DIGITAL TWIN
   ========================================================================== */
.infra-3d-card-frame {
  position: relative;
  background: #f8fafc;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-slate-200);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.infra-3d-viewport {
  position: relative;
  width: 100%;
  height: 560px;
  cursor: grab;
  user-select: none;
  background: radial-gradient(circle at 50% 35%, #ffffff 0%, #f1f5f9 100%);
}

.infra-3d-viewport:active {
  cursor: grabbing;
}

.infra-3d-canvas-wrap {
  width: 100%;
  height: 100%;
  display: block;
}

.infra-3d-canvas-wrap canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

/* Floating Top HUD Status */
.infra-3d-top-hud {
  position: absolute;
  top: 1.25rem;
  left: 1.5rem;
  right: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
  z-index: 10;
}

.infra-3d-hud-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-navy-dark);
  box-shadow: var(--shadow-xs);
  pointer-events: auto;
}

.hud-live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #0284c7;
  box-shadow: 0 0 8px #0284c7;
  animation: pulse-dot 1.5s infinite;
}

.infra-3d-hint-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-slate-600);
  box-shadow: var(--shadow-xs);
  pointer-events: auto;
}

/* Floating Bottom Controls Toolbar */
.infra-3d-toolbar-wrap {
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(226, 232, 240, 0.95);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.1);
  padding: 6px 10px;
  border-radius: var(--radius-pill);
  z-index: 20;
  max-width: 95%;
  flex-wrap: wrap;
  justify-content: center;
}

.btn-3d-tool {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-slate-700);
  background: transparent;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-3d-tool:hover {
  background: var(--color-slate-100);
  color: var(--color-navy-dark);
}

.btn-3d-tool.active {
  background: var(--color-navy);
  color: #ffffff;
  box-shadow: var(--shadow-xs);
}

.btn-3d-tool-divider {
  width: 1px;
  height: 20px;
  background: var(--color-slate-200);
  margin: 0 2px;
}

/* Hotspots Overlay Layer */
.infra-3d-hotspots-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 15;
}

.hotspot-3d-pin {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  outline: none;
  transition: transform 0.15s ease;
}

.hotspot-3d-pin:hover {
  transform: translate(-50%, -50%) scale(1.08) !important;
}

.hotspot-pulse-ring {
  position: absolute;
  top: 50%;
  left: 14px;
  transform: translate(-50%, -50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--color-amber-accent);
  pointer-events: none;
  animation: hotspotPulse 2s infinite ease-out;
}

@keyframes hotspotPulse {
  0% { transform: translate(-50%, -50%) scale(0.9); opacity: 0.9; }
  100% { transform: translate(-50%, -50%) scale(2.4); opacity: 0; }
}

.hotspot-pin-core {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-navy);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 800;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.95), var(--shadow-sm);
  transition: all 0.2s ease;
  position: relative;
  z-index: 2;
}

.hotspot-3d-pin.active .hotspot-pin-core,
.hotspot-3d-pin:hover .hotspot-pin-core {
  background: var(--color-amber);
  transform: scale(1.1);
}

.hotspot-pin-tag {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(6px);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-navy-dark);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-slate-200);
  white-space: nowrap;
  pointer-events: none;
}

/* Floating Engineering Inspect Card */
.infra-3d-inspect-card {
  position: absolute;
  top: 4.5rem;
  left: 1.5rem;
  width: 350px;
  max-width: calc(100% - 3rem);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(226, 232, 240, 0.95);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 1.5rem;
  z-index: 25;
  opacity: 0;
  transform: translateY(10px) scale(0.97);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.infra-3d-inspect-card.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.inspect-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.85rem;
}

.inspect-card-badge {
  display: inline-block;
  padding: 3px 8px;
  background: var(--color-amber-light);
  color: var(--color-amber);
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.btn-close-inspect {
  background: none;
  border: none;
  color: var(--color-slate-400);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 2px 6px;
  line-height: 1;
  border-radius: 4px;
  transition: color 0.15s ease;
}
.btn-close-inspect:hover {
  color: var(--color-navy-dark);
}

.inspect-card-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-navy-dark);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.inspect-meta-grid {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.inspect-meta-item {
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--color-slate-600);
  background: var(--color-slate-50);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-slate-200);
}

.inspect-meta-lbl {
  font-weight: 700;
  color: var(--color-navy-dark);
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 2px;
}

.btn-inspect-cta {
  display: block;
  width: 100%;
  text-align: center;
  padding: 9px 14px;
  background: var(--color-navy);
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: background 0.2s ease;
}
.btn-inspect-cta:hover {
  background: var(--color-navy-light);
}

/* ==========================================================================
   3D CARD HOVER PERSPECTIVE / TILT EFFECT
   ========================================================================== */
.tilt-3d {
  transform-style: preserve-3d;
  transition: transform 0.2s ease-out, box-shadow 0.25s ease;
  will-change: transform;
}
.tilt-3d:hover {
  box-shadow: var(--shadow-xl);
}

/* ==========================================================================
   FLOATING FAST ENGAGEMENT ACTIONS (RFP DESK & WHATSAPP)
   ========================================================================== */
.floating-ref-actions {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-consult-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-navy-dark);
  color: #ffffff !important;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 6px 20px rgba(15, 43, 72, 0.35);
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
}

.btn-consult-pill:hover {
  transform: translateY(-2px);
  background: var(--color-navy);
  box-shadow: 0 10px 25px rgba(15, 43, 72, 0.45);
  color: #ffffff !important;
}

.btn-consult-icon {
  font-size: 0.95rem;
  line-height: 1;
}

.btn-consult-label {
  letter-spacing: 0.02em;
}

.btn-whatsapp-round {
  width: 50px;
  height: 50px;
  min-width: 50px;
  min-height: 50px;
  max-width: 50px;
  max-height: 50px;
  border-radius: 50%;
  background: #25d366;
  color: #ffffff !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  border: 2px solid #ffffff;
  flex-shrink: 0;
  overflow: hidden;
  box-sizing: border-box;
}

.btn-whatsapp-round svg {
  width: 26px !important;
  height: 26px !important;
  min-width: 26px !important;
  min-height: 26px !important;
  max-width: 26px !important;
  max-height: 26px !important;
  fill: #ffffff !important;
  display: block;
  flex-shrink: 0;
}

.btn-whatsapp-round:hover {
  transform: translateY(-2px) scale(1.06);
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.6);
  background: #20ba59;
}

.corp-brand-mark {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

/* ==========================================================================
   CORPORATE FOOTER (DARK THEME WITH CRISP WHITE TYPOGRAPHY)
   ========================================================================== */
.corp-footer {
  background: #081628;
  color: #ffffff;
  border-top: 2px solid rgba(2, 132, 199, 0.45);
  padding: 5rem 0 2rem;
  position: relative;
  overflow: hidden;
}

.corp-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(56, 189, 248, 0.7) 50%, transparent 100%);
  pointer-events: none;
}

.corp-footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
  gap: 3.5rem;
  margin-bottom: 3.5rem;
}

.footer-brand-badge-link {
  display: inline-block;
  text-decoration: none;
  margin-bottom: 1.25rem;
}

.footer-brand-badge {
  background: #ffffff;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.4);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.footer-brand-badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(2, 132, 199, 0.4);
}

.footer-brand-logo-img {
  height: 52px;
  width: auto;
  max-width: 170px;
  object-fit: contain;
  display: block;
}

.corp-footer .corp-brand-mark {
  background: linear-gradient(135deg, #0284c7 0%, #0f2b48 100%);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}

.corp-footer .brand-company-name {
  color: #ffffff !important;
}

.corp-footer .brand-legal-tag {
  color: #94a3b8 !important;
}

.footer-company-desc {
  font-size: 0.92rem;
  color: #cbd5e1;
  line-height: 1.75;
  margin: 1.25rem 0;
  max-width: 320px;
  text-align: justify;
}

.footer-est-tag {
  font-size: 0.8rem;
  font-weight: 700;
  color: #38bdf8;
  letter-spacing: 0.05em;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--color-amber);
  border-radius: 2px;
}

.footer-link-stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-nav-link {
  font-size: 0.9rem;
  color: #cbd5e1;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  text-decoration: none;
}

.footer-nav-link:hover {
  color: #38bdf8;
  font-weight: 600;
  transform: translateX(3px);
}

.footer-contact-stack {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  font-size: 0.9rem;
  color: #cbd5e1;
  line-height: 1.6;
}

.footer-contact-stack a {
  color: #38bdf8;
  font-weight: 600;
  transition: color 0.15s ease;
  text-decoration: none;
}

.footer-contact-stack a:hover {
  color: #7dd3fc;
  text-decoration: underline;
}

.footer-bottom-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: #94a3b8;
}

.footer-bottom-bar div:first-child {
  color: #ffffff;
  font-weight: 500;
}

.footer-bottom-bar div:last-child {
  color: #cbd5e1;
}

.vtava-link {
  color: #38bdf8 !important;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s ease;
}

.vtava-link:hover {
  color: #7dd3fc !important;
  text-decoration: underline;
}

/* Guard against any inline color styles inside the dark footer */
.corp-footer [style*="color:var(--color-slate-600)"],
.corp-footer [style*="color:var(--color-slate-500)"],
.corp-footer [style*="color:var(--color-navy-dark)"] {
  color: #cbd5e1 !important;
}

.corp-footer [style*="color:var(--color-navy)"] {
  color: #38bdf8 !important;
}

/* ==========================================================================
   PROJECT EXPERIENCE & PORTFOLIO STYLES
   ========================================================================== */
.portfolio-filter-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 3rem;
}

.portfolio-filter-btn {
  padding: 8px 18px;
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-slate-600);
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-xs);
}

.portfolio-filter-btn:hover {
  border-color: var(--color-navy);
  color: var(--color-navy);
  transform: translateY(-1px);
}

.portfolio-filter-btn.active {
  background: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
  box-shadow: var(--shadow-sm);
}

.portfolio-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 2rem;
}

.portfolio-card {
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
}

.portfolio-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(15, 43, 72, 0.2);
}

.portfolio-img-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: var(--color-slate-100);
}

.portfolio-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.portfolio-card:hover .portfolio-img-wrap img {
  transform: scale(1.05);
}

.portfolio-sector-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(15, 43, 72, 0.92);
  backdrop-filter: blur(8px);
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.portfolio-loc-badge {
  position: absolute;
  bottom: 0.85rem;
  left: 1rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(6px);
  color: var(--color-navy-dark);
  font-size: 0.76rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  box-shadow: var(--shadow-xs);
}

.portfolio-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.portfolio-client-lbl {
  font-family: var(--font-heading);
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-amber);
  margin-bottom: 0.4rem;
}

.portfolio-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-navy-dark);
  line-height: 1.35;
  margin-bottom: 1rem;
}

.portfolio-section-subtitle {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-slate-500);
  margin-bottom: 0.5rem;
}

.portfolio-scope-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
  font-size: 0.88rem;
  color: var(--color-slate-600);
}

.portfolio-scope-list li {
  position: relative;
  padding-left: 1.3rem;
  line-height: 1.5;
}

.portfolio-scope-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #059669;
  font-weight: 800;
  font-size: 0.85rem;
}

.portfolio-services-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--color-slate-100);
}

.portfolio-tag {
  background: var(--color-slate-100);
  color: var(--color-navy);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-slate-200);
}

/* ==========================================================================
   LEADERSHIP TEAM & EXPERTISE STYLES
   ========================================================================== */
.team-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 2rem;
}

.team-card {
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
}

.team-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(15, 43, 72, 0.25);
}

.team-photo-wrap {
  position: relative;
  height: 290px;
  overflow: hidden;
  background: var(--color-slate-100);
}

.team-photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 15%;
  transition: transform 0.4s ease;
}

.team-card:hover .team-photo-wrap img {
  transform: scale(1.04);
}

.team-qualification-badge {
  position: absolute;
  bottom: 0.85rem;
  left: 0.85rem;
  right: 0.85rem;
  background: rgba(15, 43, 72, 0.92);
  backdrop-filter: blur(8px);
  color: #ffffff;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.2);
  text-align: center;
}

.team-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.team-member-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-navy-dark);
  margin-bottom: 0.25rem;
}

.team-member-designation {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-amber);
  margin-bottom: 0.9rem;
}

.team-expertise-desc {
  font-size: 0.88rem;
  color: var(--color-slate-600);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.team-skills-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 0.85rem;
  border-top: 1px solid var(--color-slate-100);
}

.team-skill-chip {
  background: var(--color-slate-50);
  color: var(--color-navy-dark);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-slate-200);
}

/* ==========================================================================
   REQUEST A PROJECT PROPOSAL FORM & CONTACT PAGE SUITE
   ========================================================================== */
/* Top Quick-Action Channels Grid */
.contact-channels-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.75rem;
}

.contact-channel-card {
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all 0.25s ease;
}

.contact-channel-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-navy);
  box-shadow: var(--shadow-md);
}

.contact-channel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.contact-channel-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: #f0f7ff;
  border: 1px solid #dbeafe;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-navy);
}

.contact-channel-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 9px;
  border-radius: var(--radius-pill);
  background: #f1f5f9;
  color: var(--color-slate-600);
  border: 1px solid var(--color-slate-200);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.contact-channel-badge.status-live {
  background: #ecfdf5;
  color: #065f46;
  border-color: #a7f3d0;
}

.contact-channel-badge .pulse-dot {
  width: 6px;
  height: 6px;
  background: #10b981;
  border-radius: 50%;
  animation: pulse-ring 2s infinite;
}

.contact-channel-title {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-slate-500);
}

.contact-channel-primary {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-navy-dark);
  line-height: 1.35;
}

.contact-channel-primary a {
  color: var(--color-navy-dark);
  text-decoration: none;
  transition: color 0.15s ease;
}

.contact-channel-primary a:hover {
  color: var(--color-blue);
}

.contact-channel-desc {
  font-size: 0.85rem;
  color: var(--color-slate-600);
  line-height: 1.5;
  margin: 0;
}

.contact-channel-action {
  margin-top: auto;
  font-family: var(--font-heading);
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--color-blue);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: gap 0.2s ease, color 0.2s ease;
}

.contact-channel-action:hover {
  gap: 10px;
  color: var(--color-navy);
}

/* Main Split Grid */
.contact-main-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 2.75rem;
  align-items: start;
}

.contact-sidebar-stack {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Executive Sidebar Cards */
.contact-info-card {
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.contact-card-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-blue);
  background: #f0f7ff;
  border: 1px solid #dbeafe;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 0.75rem;
}

.contact-info-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-navy-dark);
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.contact-info-rows {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
  margin-bottom: 1.75rem;
}

.contact-info-row {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.contact-info-icon-box {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: #f0f7ff;
  border: 1px solid #dbeafe;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-navy);
  flex-shrink: 0;
}

.contact-info-label {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-slate-400);
  margin-bottom: 2px;
}

.contact-info-val {
  font-size: 0.95rem;
  color: var(--color-slate-800);
  font-weight: 600;
  line-height: 1.55;
}

.contact-info-val a {
  color: var(--color-navy-dark);
  text-decoration: none;
  font-weight: 700;
  transition: color 0.15s ease;
}

.contact-info-val a:hover {
  color: var(--color-blue);
}

.contact-call-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.btn-contact-call {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 0.86rem;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-contact-call.primary-call {
  background: var(--color-navy);
  color: #ffffff;
  border: 1px solid var(--color-navy);
}

.btn-contact-call.primary-call:hover {
  background: var(--color-navy-dark);
  box-shadow: 0 4px 12px rgba(15, 43, 72, 0.2);
}

.btn-contact-call.secondary-call {
  background: #ffffff;
  color: var(--color-navy);
  border: 1.5px solid var(--color-slate-300);
}

.btn-contact-call.secondary-call:hover {
  border-color: var(--color-navy);
  background: var(--color-slate-50);
}

/* Regional Landmark & Connectivity Card */
.contact-connectivity-card {
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  padding: 1.75rem 1.5rem;
  box-shadow: var(--shadow-sm);
}

.connectivity-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 1.25rem;
}

.connectivity-header h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-navy-dark);
  margin: 0;
}

.connectivity-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.connectivity-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 12px;
  background: var(--color-slate-50);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-slate-200);
}

.connectivity-place {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--color-slate-700);
}

.connectivity-badge {
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--color-navy);
  background: #ffffff;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-slate-200);
}

/* SLA & Confidentiality Card */
.contact-sla-card {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
}

.sla-badge-row {
  display: flex;
  gap: 12px;
  margin-bottom: 0.75rem;
  align-items: flex-start;
}

.sla-badge-row:last-child {
  margin-bottom: 0;
}

.sla-badge-icon {
  width: 32px;
  height: 32px;
  background: #dbeafe;
  color: var(--color-navy);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sla-badge-title {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--color-navy-dark);
  margin-bottom: 2px;
}

.sla-badge-desc {
  font-size: 0.82rem;
  color: var(--color-slate-600);
  line-height: 1.5;
  margin: 0;
}

/* Proposal Form Card Block */
.proposal-card-block {
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 3rem;
  position: relative;
}

.proposal-form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.35rem;
}

.proposal-field-full {
  grid-column: 1 / -1;
}

.form-field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.proposal-label, .form-field-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--color-navy-dark);
}

.proposal-input, .proposal-select, .proposal-textarea,
.form-field-input {
  width: 100%;
  padding: 13px 16px;
  background: #ffffff;
  border: 1.5px solid var(--color-slate-300);
  border-radius: var(--radius-md);
  color: var(--color-navy-dark);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.proposal-input:focus, .proposal-select:focus, .proposal-textarea:focus,
.form-field-input:focus {
  border-color: var(--color-navy);
  box-shadow: 0 0 0 3px rgba(15, 43, 72, 0.1);
  background: #ffffff;
}

.services-checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
  margin-top: 0.35rem;
}

.service-check-pill, .service-checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 13px;
  background: var(--color-slate-50);
  border: 1.5px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-slate-700);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.service-check-pill input[type="checkbox"],
.service-checkbox-label input[type="checkbox"] {
  accent-color: var(--color-navy);
  width: 17px;
  height: 17px;
  cursor: pointer;
}

.service-check-pill:hover,
.service-checkbox-label:hover {
  background: #ffffff;
  border-color: var(--color-navy);
  color: var(--color-navy-dark);
}

.service-check-pill:has(input:checked),
.service-checkbox-label:has(input:checked) {
  background: #f0f7ff;
  border-color: var(--color-blue);
  color: var(--color-navy-dark);
}

/* Document Upload Dropzone */
.file-dropzone-box {
  border: 2px dashed var(--color-slate-300);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  text-align: center;
  background: var(--color-slate-50);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.file-dropzone-box:hover, .file-dropzone-box.dragover {
  border-color: var(--color-navy);
  background: #f0f7ff;
}

.file-dropzone-icon {
  margin: 0 auto 0.75rem;
  width: 44px;
  height: 44px;
  background: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  color: var(--color-navy);
}

.file-dropzone-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-navy-dark);
  margin-bottom: 0.25rem;
}

.file-dropzone-hint {
  font-size: 0.78rem;
  color: var(--color-slate-500);
}

.file-selected-indicator {
  display: none;
  margin-top: 0.85rem;
  padding: 6px 14px;
  background: #dcfce7;
  color: #166534;
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: var(--radius-pill);
  border: 1px solid #86efac;
}

/* FAQ Accordion Component */
.faq-accordion-box {
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-xs);
  transition: all 0.25s ease;
}

.faq-accordion-box:hover {
  border-color: var(--color-slate-300);
  box-shadow: var(--shadow-sm);
}

.faq-accordion-box.active {
  border-color: var(--color-blue);
  box-shadow: var(--shadow-md);
}

.faq-accordion-header {
  padding: 1.35rem 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--color-navy-dark);
  user-select: none;
  transition: color 0.18s ease;
  gap: 1rem;
}

.faq-accordion-header:hover {
  color: var(--color-blue);
}

.faq-accordion-body {
  padding: 0 1.75rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s ease;
  color: var(--color-slate-600);
  font-size: 0.94rem;
  line-height: 1.75;
}

.faq-accordion-box.active .faq-accordion-body {
  max-height: 250px;
  padding: 0 1.75rem 1.5rem;
}

.faq-accordion-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-slate-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-navy);
  flex-shrink: 0;
  transition: all 0.25s ease;
}

.faq-accordion-box.active .faq-accordion-icon {
  transform: rotate(45deg);
  background: var(--color-navy);
  color: #ffffff;
}

/* ==========================================================================
   VISUAL SERVICE SHOWCASE FLOW (IMAGE -> WHAT WE DO -> SCOPE -> DELIVERABLES -> PROJECTS -> CTA)
   ========================================================================== */
.service-visual-block {
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: 3.5rem;
  transition: all 0.25s ease;
}

.service-visual-block:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(15, 43, 72, 0.2);
}

.service-visual-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  align-items: stretch;
}

.service-visual-media {
  position: relative;
  min-height: 440px;
  overflow: hidden;
  background: var(--color-slate-100);
}

.service-visual-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.service-visual-block:hover .service-visual-media img {
  transform: scale(1.03);
}

.service-visual-badge-overlay {
  position: absolute;
  top: 1.5rem;
  left: 1.5rem;
  background: rgba(15, 43, 72, 0.92);
  backdrop-filter: blur(8px);
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.service-visual-content {
  padding: 2.75rem 3rem;
  display: flex;
  flex-direction: column;
}

.service-flow-step {
  margin-bottom: 1.25rem;
}

.service-step-label {
  font-family: var(--font-heading);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-amber);
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

.service-flow-title {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--color-navy-dark);
  line-height: 1.25;
  margin-bottom: 0.85rem;
}

.service-flow-desc {
  font-size: 0.96rem;
  color: var(--color-slate-600);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

.service-flow-checklist {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.service-check-item {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  font-size: 0.86rem;
  color: var(--color-slate-700);
  line-height: 1.45;
}

.service-check-item svg {
  flex-shrink: 0;
  color: var(--color-navy);
  margin-top: 2px;
}

.service-related-project-strip {
  background: var(--color-slate-50);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.15rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 12px;
}

.project-strip-tag {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 800;
  background: var(--color-amber-light);
  color: var(--color-amber);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.project-strip-text {
  font-size: 0.85rem;
  color: var(--color-slate-600);
}

.project-strip-text strong {
  color: var(--color-navy-dark);
}

/* ==========================================================================
   EXPERIENCE HORIZON & FOUNDING TIMELINE STYLES
   ========================================================================== */
.experience-timeline-box {
  background: #ffffff;
  border: 1.5px solid var(--color-slate-200);
  border-radius: var(--radius-xl);
  padding: 2.25rem 2.5rem;
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2.5rem;
  align-items: center;
  margin-top: 2.5rem;
}

.timeline-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--color-navy);
  color: #ffffff;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.timeline-distinction-desc {
  font-size: 0.94rem;
  color: var(--color-slate-600);
  line-height: 1.7;
}

.timeline-dual-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.timeline-metric-card {
  background: var(--color-slate-50);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  text-align: center;
}

.timeline-metric-num {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-navy-dark);
  margin-bottom: 0.35rem;
}

.timeline-metric-lbl {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-slate-500);
  letter-spacing: 0.04em;
}

/* ==========================================================================
   ABOUT PAGE: ENGINEERING EXCELLENCE, MISSION-VISION & EXPERTISE SHOWCASE
   ========================================================================== */
.mission-vision-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.infra-sector-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.sector-pill-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-navy-dark);
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-fast);
}

.sector-pill-tag:hover {
  border-color: var(--color-navy);
  background: var(--color-navy-dark);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.expertise-split-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 3rem;
  align-items: center;
}

.key-services-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
  margin-top: 1.5rem;
}

.key-service-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.1rem;
  background: #ffffff;
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.key-service-item:hover {
  transform: translateY(-2px);
  border-color: var(--color-navy);
  box-shadow: var(--shadow-md);
}

.key-service-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(30, 58, 138, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-navy);
  font-size: 0.95rem;
  flex-shrink: 0;
}

.key-service-name {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-navy-dark);
  line-height: 1.4;
}

.tunnel-showcase-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 4px solid #ffffff;
  background: var(--color-navy-dark);
}

.tunnel-showcase-img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

.tunnel-showcase-frame:hover .tunnel-showcase-img {
  transform: scale(1.04);
}

.tunnel-showcase-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.15) 0%, rgba(15, 23, 42, 0.45) 55%, rgba(15, 23, 42, 0.9) 100%);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.75rem;
  color: #ffffff;
}

.tunnel-badge-top {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 6px 14px;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-amber-light);
}

.tunnel-meta-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.tunnel-meta-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
  margin: 0;
}

.tunnel-meta-desc {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.88);
  margin: 0;
  line-height: 1.5;
}

/* All-Sectors Interactive Showcase Slider (About Us Page) */
.about-sector-slider {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 4px solid #ffffff;
  background: var(--color-navy-dark);
  height: 540px;
}

.about-sector-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transform: scale(1);
  transition: opacity 0.8s ease-in-out, transform 5s cubic-bezier(0.1, 0.9, 0.2, 1);
  pointer-events: none;
}

.about-sector-slide.active {
  opacity: 1;
  transform: scale(1.05);
  z-index: 1;
}

.about-sector-slide-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.about-sector-slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.2) 0%, rgba(15, 23, 42, 0.45) 52%, rgba(15, 23, 42, 0.94) 100%);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.85rem;
  color: #ffffff;
  z-index: 2;
}

.about-sector-badge-top {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 6px 14px;
  background: rgba(15, 23, 42, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-amber-light);
}

.about-sector-meta-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding-bottom: 1.5rem;
}

.about-sector-meta-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  color: #ffffff;
  margin: 0;
}

.about-sector-meta-desc {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.88);
  margin: 0;
  line-height: 1.55;
}

/* Nav arrows on the slider */
.about-sector-nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.about-sector-nav-arrow:hover {
  background: var(--color-navy);
  border-color: var(--color-sky);
  transform: translateY(-50%) scale(1.1);
}

.about-sector-nav-prev { left: 1rem; }
.about-sector-nav-next { right: 1rem; }

/* Dots indicator */
.about-sector-dots {
  position: absolute;
  bottom: 0.85rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 6px;
  z-index: 5;
}

.about-sector-dot {
  width: 8px;
  height: 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.4);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: all 0.3s ease;
}

.about-sector-dot.active {
  width: 24px;
  background: var(--color-amber);
}

/* Progress bar along the bottom */
.about-sector-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(255, 255, 255, 0.15);
  z-index: 6;
}

.about-sector-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #38bdf8, #f59e0b);
  transition: width 0.05s linear;
}

@media (max-width: 992px) {
  .mission-vision-grid { grid-template-columns: 1fr; gap: 1.75rem; }
  .expertise-split-grid { grid-template-columns: 1fr; gap: 2.25rem; }
  .tunnel-showcase-img { height: 380px; }
  .about-sector-slider { height: 420px; }
}

@media (max-width: 640px) {
  .key-services-list { grid-template-columns: 1fr; gap: 0.65rem; }
  .tunnel-showcase-img { height: 280px; }
  .tunnel-showcase-overlay { padding: 1.25rem; }
  .tunnel-meta-title { font-size: 1.15rem; }
  .about-sector-slider { height: 330px; }
  .about-sector-slide-overlay { padding: 1.25rem; }
  .about-sector-meta-title { font-size: 1.15rem; }
  .about-sector-meta-desc { font-size: 0.82rem; }
  .about-sector-nav-arrow { width: 32px; height: 32px; }
  .about-sector-meta-bottom { padding-bottom: 1.25rem; }
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 1080px) {
  .hero-editorial-grid { grid-template-columns: 1fr; gap: 3rem; }
  .hero-credentials-strip { grid-template-columns: repeat(2, 1fr); }
  .carousel-viewport { height: 380px; }
  .about-spread-grid { grid-template-columns: 1fr; }
  .estimator-split-grid { grid-template-columns: 1fr; }
  .service-tab-panel.active { grid-template-columns: 1fr; gap: 2rem; }
  .sectors-editorial-grid { grid-template-columns: repeat(2, 1fr); }
  .lifecycle-grid { grid-template-columns: repeat(3, 1fr); }
  .accreditation-grid { grid-template-columns: repeat(3, 1fr); }
  .corp-footer-grid { grid-template-columns: repeat(2, 1fr); }
  .service-visual-grid { grid-template-columns: 1fr; }
  .experience-timeline-box { grid-template-columns: 1fr; gap: 1.5rem; }
  .proposal-card-block { padding: 2rem; }
  .contact-channels-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-main-grid { grid-template-columns: 1fr; gap: 2.25rem; }
}

@media (max-width: 992px) {
  .corp-topbar { display: none; }
  .corp-nav-menu { display: none; }
  .corp-nav-actions .btn-contact-quick { display: none; }
  .nav-toggle-btn { display: flex; }
}

@media (max-width: 768px) {
  .corp-topbar { display: none; }
  .corp-nav-menu { display: none; }
  .corp-nav-actions .btn-contact-quick { display: none; }
  .corp-nav-actions .btn-primary-corp { display: none; }
  .nav-toggle-btn { display: flex; }
  .editorial-hero { padding: 3.5rem 0 3rem; }
  .editorial-hero::before { display: none; }
  .page-hero-banner { padding: 3.5rem 0 2.5rem; }
  .page-hero-banner::before { display: none; }
  .page-banner-title { font-size: 2.1rem; }
  .page-banner-desc { font-size: 1rem; }
  .page-banner-meta-strip { gap: 0.5rem; }
  .banner-meta-item { font-size: 0.76rem; padding: 6px 12px; }
  .hero-float-glass-card { display: none; }
  .carousel-viewport { height: 320px; }
  .carousel-nav-tabs { grid-template-columns: repeat(2, 1fr); }
  .sectors-editorial-grid { grid-template-columns: 1fr; }
  .lifecycle-grid { grid-template-columns: 1fr; }
  .accreditation-grid { grid-template-columns: repeat(2, 1fr); }
  .corp-footer-grid { grid-template-columns: 1fr; }
  .hero-credentials-strip { grid-template-columns: repeat(2, 1fr); gap: 0.65rem; }
  .hero-exec-trust-strip { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
  .hero-exec-headline { font-size: 2.2rem; }
  .section { padding: 4.5rem 0; }
  .services-tabbed-container, .estimator-clean-tool { padding: 1.5rem; }
  .about-floating-stamp { position: static; margin-top: 1rem; }
  .comparison-container { height: 320px; }
  .floating-ref-actions { bottom: 20px; right: 20px; gap: 8px; }
  .btn-whatsapp-round { width: 46px; height: 46px; min-width: 46px; min-height: 46px; }
  .btn-whatsapp-round svg { width: 24px !important; height: 24px !important; }
  .btn-consult-pill { padding: 9px 15px; font-size: 0.8rem; }
  .infra-3d-viewport { height: 440px; }
  .infra-3d-top-hud { flex-direction: column; align-items: flex-start; gap: 6px; top: 0.75rem; left: 0.75rem; right: 0.75rem; }
  .infra-3d-toolbar-wrap { padding: 4px 6px; gap: 4px; border-radius: var(--radius-md); max-width: 96%; bottom: 0.75rem; }
  .btn-3d-tool { padding: 5px 8px; font-size: 0.72rem; }
  .infra-3d-inspect-card { top: auto; bottom: 4.5rem; left: 0.75rem; right: 0.75rem; width: auto; max-width: none; padding: 1rem; }
  .portfolio-cards-grid { grid-template-columns: 1fr; }
  .team-cards-grid { grid-template-columns: 1fr; }
  .proposal-form-grid { grid-template-columns: 1fr; }
  .service-visual-media { min-height: 260px; }
  .service-visual-content { padding: 1.75rem 1.25rem; }
  .service-flow-checklist { grid-template-columns: 1fr; }
  .timeline-dual-metrics { grid-template-columns: 1fr; }
  .proposal-card-block { padding: 1.75rem 1.25rem; }
  .contact-channels-grid { grid-template-columns: 1fr; }
  .contact-call-actions { grid-template-columns: 1fr; }
  .contact-info-card { padding: 1.75rem 1.25rem; }
  .contact-connectivity-card { padding: 1.5rem 1.25rem; }
  .faq-accordion-header { padding: 1.15rem 1.25rem; font-size: 0.96rem; }
  .faq-accordion-body { padding: 0 1.25rem; }
  .faq-accordion-box.active .faq-accordion-body { padding: 0 1.25rem 1.25rem; }
  .corp-brand-logo-img { height: 50px; }
  .footer-brand-logo-img { height: 50px; }
}

@media (max-width: 480px) {
  .corp-brand-logo-img { height: 44px; }
  .footer-brand-logo-img { height: 44px; }
  .hero-credentials-strip { grid-template-columns: 1fr; }
  .hero-exec-trust-strip { grid-template-columns: 1fr; }
  .hero-exec-cta-row { flex-direction: column; align-items: stretch; gap: 0.75rem; }
  .btn-exec-primary, .btn-exec-call { width: 100%; justify-content: center; }
  .hero-video-switcher-group { width: 100%; justify-content: center; }
  .hero-editorial-cta-row { flex-direction: column; align-items: stretch; }
  .btn-hero-primary, .btn-hero-outline, .btn-video-toggle { width: 100%; justify-content: center; }
  .carousel-nav-tabs { grid-template-columns: 1fr; }
  .services-checkbox-grid { grid-template-columns: 1fr; }
  .contact-channel-card { padding: 1.5rem 1.15rem; }
  .cinematic-hero-section, .editorial-hero { padding: 4.5rem 0 3.5rem; min-height: 80vh; }
  .hero-ref-cta-group { flex-direction: column; align-items: stretch; }
  .btn-ref-primary, .btn-ref-outline, .btn-ref-ghost { width: 100%; justify-content: center; }
  .hero-ref-trust-strip { flex-direction: column; align-items: stretch; }
  .trust-badge-pill { justify-content: center; }
  .floating-ref-actions { bottom: 16px; right: 16px; gap: 8px; }
  .btn-whatsapp-round { width: 44px; height: 44px; min-width: 44px; min-height: 44px; }
  .btn-whatsapp-round svg { width: 22px !important; height: 22px !important; }
  .btn-consult-pill { padding: 8px 12px; font-size: 0.76rem; }
}


/* ==========================================================================
   COMPREHENSIVE RESPONSIVE OVERRIDES - ALL DEVICES
   ========================================================================== */

/* ---- Tablet Wide (≤1200px) ---- */
@media (max-width: 1200px) {
  .sectors-editorial-grid { grid-template-columns: repeat(2, 1fr); }
  .accreditation-grid { grid-template-columns: repeat(4, 1fr); }
  .hero-exec-headline { font-size: clamp(2rem, 4vw, 3.6rem); }
  .lifecycle-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---- Tablet (≤1080px) - already partially handled, extend it ---- */
@media (max-width: 1080px) {
  .corp-cta-block { padding: 3.5rem 2rem; }
  .services-tabbed-container { padding: 2rem 1.75rem; }
  .estimator-clean-tool { padding: 2rem; }
}

/* ---- Tablet/iPad Portrait (≤900px) ---- */
@media (max-width: 900px) {
  .contact-channels-grid { grid-template-columns: repeat(2, 1fr); }
  .about-pillar-cards { grid-template-columns: 1fr; gap: 0.85rem; }
  .hero-exec-trust-strip { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
  .team-cards-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-cards-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---- Small Tablet / Large Mobile (≤768px) ---- */
@media (max-width: 768px) {
  /* Container padding tighter */
  .container { padding: 0 1.1rem; }
  
  /* Section spacing */
  .section { padding: 3.5rem 0; }

  /* CTA Block */
  .corp-cta-block { padding: 2.75rem 1.5rem; }
  .corp-cta-title { font-size: clamp(1.7rem, 5vw, 2.4rem); }
  .corp-cta-desc { font-size: 0.97rem; }

  /* Hero section improved */
  .cinematic-hero-section, .editorial-hero { 
    padding: 4rem 0 3rem;
    min-height: 85vh;
  }
  .hero-exec-headline { font-size: clamp(1.8rem, 6vw, 2.6rem); line-height: 1.2; }
  .hero-exec-desc { font-size: 0.97rem; line-height: 1.7; }
  .hero-exec-kicker { font-size: 0.72rem; letter-spacing: 0.06em; padding: 5px 12px; }
  
  /* Video switcher & slider nav responsive */
  .hero-video-switcher-group { display: none; }
  .hero-slider-nav-group {
    max-width: 100%;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .hero-slider-nav-group::-webkit-scrollbar {
    display: none;
  }
  .btn-slider-pill {
    padding: 6px 10px;
    font-size: 0.72rem;
  }
  
  /* Trust strip */
  .hero-exec-trust-strip { grid-template-columns: repeat(2, 1fr); gap: 0.65rem; padding-top: 1.25rem; }
  .trust-exec-val { font-size: 1.25rem; }
  .trust-exec-card { padding: 10px 12px; }

  /* Services tabs */
  .service-tab-headers { gap: 6px; padding-bottom: 1rem; margin-bottom: 1.5rem; }
  .btn-service-tab { padding: 8px 14px; font-size: 0.8rem; }
  .services-tabbed-container { padding: 1.25rem 1rem; border-radius: var(--radius-lg); }
  .service-tab-panel.active { gap: 1.5rem; }
  .panel-content-left h3 { font-size: 1.5rem; }

  /* Comparison slider */
  .comparison-container { height: 260px; }

  /* About section */
  .about-spread-grid { gap: 1.5rem; }
  .about-main-photo { height: 300px; }
  .about-narrative h2 { font-size: 1.8rem; }
  .about-pillar-cards { grid-template-columns: 1fr 1fr; gap: 0.75rem; }

  /* Experience timeline */
  .experience-timeline-box { padding: 1.5rem 1.25rem; }

  /* 3D Viewport */
  .infra-3d-viewport { height: 380px; }

  /* Sectors grid */
  .sectors-editorial-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  
  /* Lifecycle grid */
  .lifecycle-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }

  /* Accreditation */
  .accreditation-grid { grid-template-columns: repeat(3, 1fr); }

  /* Nav: hide proposal button on tablet too */
  .corp-nav-actions .btn-primary-corp { display: none; }

  /* Footer */
  .corp-footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

/* ---- Mobile Portrait (≤640px) ---- */
@media (max-width: 640px) {
  .container { padding: 0 1rem; }
  .section { padding: 3rem 0; }
  
  /* About pillar cards - single column on small phones */
  .about-pillar-cards { grid-template-columns: 1fr; }

  /* Team & Portfolio - single column */
  .team-cards-grid { grid-template-columns: 1fr; }
  .portfolio-cards-grid { grid-template-columns: 1fr; }

  /* Lifecycle */
  .lifecycle-grid { grid-template-columns: 1fr; }
  
  /* Contact channels */
  .contact-channels-grid { grid-template-columns: 1fr; }

  /* Section headings */
  .section-heading { font-size: clamp(1.6rem, 5.5vw, 2.2rem); }
  .section-subheading { font-size: 0.97rem; }
  .section-header-block { margin-bottom: 2rem; }

  /* Hero */
  .hero-exec-headline { font-size: clamp(1.6rem, 7vw, 2.2rem); }
  .hero-exec-trust-strip { grid-template-columns: repeat(2, 1fr); gap: 0.5rem; }
  .trust-exec-card { padding: 9px 10px; }
  .trust-exec-val { font-size: 1.1rem; }
  .trust-exec-lbl { font-size: 0.68rem; }
  .trust-exec-icon { font-size: 1rem; }

  /* Services tabs - allow horizontal scroll but improve */
  .service-tab-headers { -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .service-tab-headers::-webkit-scrollbar { display: none; }

  /* Comparison slider */
  .comparison-container { height: 220px; }
  .comparison-label-pill { font-size: 0.68rem; padding: 4px 10px; top: 0.75rem; }
  .label-left { left: 0.75rem; }
  .label-right { right: 0.75rem; }

  /* CTA block */
  .corp-cta-block { padding: 2.25rem 1.25rem; border-radius: var(--radius-lg); }
  .corp-cta-buttons { flex-direction: column; align-items: stretch; }
  .btn-cta-white, .btn-cta-ghost { width: 100%; justify-content: center; padding: 13px 20px; }

  /* Accreditation */
  .accreditation-grid { grid-template-columns: repeat(2, 1fr); }

  /* Estimator */
  .estimator-clean-tool { padding: 1.25rem 1rem; }
  .sector-button-grid { grid-template-columns: repeat(2, 1fr); }

  /* Footer */
  .corp-footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }

  /* Service visual */
  .service-visual-content { padding: 1.5rem 1rem; }
  .service-flow-title { font-size: 1.4rem; }

  /* Page banner */
  .page-banner-title { font-size: clamp(1.7rem, 6vw, 2.2rem); }
  .page-banner-desc { font-size: 0.95rem; }

  /* 3D Viewport */
  .infra-3d-viewport { height: 320px; }
  .btn-3d-tool { padding: 5px 6px; font-size: 0.68rem; }
  .btn-label-text { display: none; } /* hide button labels on tiny screens */

  /* About narrative */
  .about-narrative h2 { font-size: 1.6rem; }
  .about-main-photo { height: 260px; }

  /* Experience timeline */
  .timeline-metric-num { font-size: 1.8rem; }
}

/* ---- Small Mobile (≤480px) - extend existing ---- */
@media (max-width: 480px) {
  .container { padding: 0 0.875rem; }
  .section { padding: 2.5rem 0; }
  
  /* Hero */
  .cinematic-hero-section, .editorial-hero { 
    padding: 3.5rem 0 2.75rem; 
    min-height: 75vh;
  }
  .hero-exec-headline { font-size: clamp(1.5rem, 8vw, 1.9rem); line-height: 1.25; }
  .hero-exec-kicker { 
    font-size: 0.68rem; 
    letter-spacing: 0.04em; 
    white-space: normal; 
    text-align: center; 
    line-height: 1.4;
  }
  .hero-exec-desc { font-size: 0.92rem; margin-bottom: 1.5rem; }
  .hero-exec-trust-strip { grid-template-columns: 1fr 1fr; gap: 0.5rem; padding-top: 1rem; }

  /* CTA row */
  .hero-exec-cta-row { flex-direction: column; align-items: stretch; gap: 0.65rem; }
  .btn-exec-primary, .btn-exec-call { width: 100%; justify-content: center; font-size: 0.9rem; padding: 12px 18px; }
  .hero-slider-nav-group { width: 100%; justify-content: space-between; padding: 3px 4px; }
  .btn-slider-pill { padding: 5px 6px; font-size: 0.65rem; }

  /* Nav brand logo */
  .corp-brand-logo-img { height: 40px; }

  /* Comparison */
  .comparison-container { height: 200px; }
  .comparison-label-pill { font-size: 0.62rem; padding: 3px 8px; }

  /* Services */
  .services-tabbed-container { padding: 1rem 0.875rem; }
  .btn-service-tab { padding: 7px 12px; font-size: 0.76rem; }

  /* Accreditation */
  .accreditation-grid { grid-template-columns: repeat(2, 1fr); gap: 0.65rem; }
  .accreditation-name { font-size: 1rem; }
  
  /* Section heading */
  .section-heading { font-size: clamp(1.5rem, 6.5vw, 2rem); }
  
  /* CTA block */
  .corp-cta-block { padding: 2rem 1rem; }
  .corp-cta-title { font-size: clamp(1.5rem, 6vw, 2rem); }
  
  /* FAQ */
  .faq-accordion-header { font-size: 0.9rem; padding: 1rem 1rem; }
  
  /* Footer */
  .corp-footer-grid { grid-template-columns: 1fr; }

  /* 3D viewport */
  .infra-3d-viewport { height: 280px; }
  .infra-3d-toolbar-wrap { gap: 2px; padding: 3px 4px; }
  .btn-3d-tool { padding: 4px 5px; font-size: 0.65rem; }
}

/* ---- Extra Small (≤375px) ---- */
@media (max-width: 375px) {
  .container { padding: 0 0.75rem; }
  .hero-exec-headline { font-size: 1.4rem; }
  .hero-exec-trust-strip { grid-template-columns: 1fr; gap: 0.5rem; }
  .trust-exec-card { 
    flex-direction: row; 
    align-items: center; 
    gap: 10px; 
    padding: 10px 12px; 
  }
  .section-heading { font-size: 1.45rem; }
  .infra-3d-viewport { height: 250px; }
  .comparison-container { height: 180px; }
  .btn-exec-primary, .btn-exec-call { font-size: 0.85rem; padding: 11px 16px; }
  .corp-brand-logo-img { height: 36px; }
}

/* ---- Print / Accessibility ---- */
@media (prefers-reduced-motion: reduce) {
  .reveal { transition: none; opacity: 1; transform: none; }
  .marquee-track { animation-play-state: paused; }
  .kicker::before, .topbar-status::before, .hud-live-dot { animation: none; }
}