/* ==========================================================================
   BRTEPL - Brother Railtech Engineering Private Limited
   Custom Stylesheet - Modern Light Industrial Railway Theme
   Exact Logo Palette: Railway Navy (#041e42) & Safety Orange (#ff5500)
   Light, Crisp, High-Contrast & 100% Responsive Design
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Variables & Light Brand Palette
   -------------------------------------------------------------------------- */
:root {
  /* Brand Colors - Railway Industrial Dark Palette */
  --brtepl-navy: #0b1a30;           /* Authoritative Deep Navy */
  --brtepl-navy-dark: #071120;      /* Darkest Railway Chassis Navy */
  --brtepl-navy-light: #152b4d;     /* Mid Navy Accent */
  --brtepl-navy-card: #0f2341;      /* Dark Navy Surface */
  --brtepl-orange: #ff5500;         /* High-Vis Safety Orange */
  --brtepl-orange-hover: #e04b00;
  --brtepl-orange-light: #fff5f0;
  --brtepl-orange-subtle: rgba(255, 85, 0, 0.12);
  --brtepl-orange-glow: rgba(255, 85, 0, 0.28);
  --brtepl-amber: #d97706;

  /* Surfaces & Cards */
  --brtepl-body-bg: #ffffff;
  --brtepl-surface: #f8fafc;
  --brtepl-surface-alt: #f1f5f9;
  --brtepl-card-bg: #ffffff;
  --brtepl-border: #e2e8f0;
  --brtepl-border-light: #edf2f7;
  --brtepl-border-dark: rgba(255, 255, 255, 0.12);
  --brtepl-border-focus: rgba(255, 85, 0, 0.35);

  /* Typography Colors */
  --brtepl-text-dark: #0b1a30;
  --brtepl-text-body: #334155;
  --brtepl-text-muted: #64748b;
  --brtepl-text-light: #94a3b8;
  --brtepl-white: #ffffff;

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

  /* Shadows & Radius */
  --shadow-sm: 0 2px 8px rgba(4, 30, 66, 0.04);
  --shadow-md: 0 8px 24px rgba(4, 30, 66, 0.07);
  --shadow-lg: 0 16px 36px rgba(4, 30, 66, 0.1);
  --shadow-card-hover: 0 12px 30px rgba(4, 30, 66, 0.1);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   2. Base Styles & Global Resets
   -------------------------------------------------------------------------- */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 85px;
}

body {
  font-family: var(--font-body);
  color: var(--brtepl-text-body);
  background-color: var(--brtepl-body-bg);
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--brtepl-navy);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.25;
}

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

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

/* --------------------------------------------------------------------------
   3. Typography & Section Header Elements
   -------------------------------------------------------------------------- */
.section-subtitle-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--brtepl-orange-subtle);
  color: var(--brtepl-orange);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 4px;
  border-left: 3px solid var(--brtepl-orange);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.85rem, 3.2vw, 2.65rem);
  font-weight: 800;
  color: var(--brtepl-navy);
  margin-bottom: 0.85rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--brtepl-text-muted);
  max-width: 720px;
  margin: 0 auto;
}

.industrial-divider {
  width: 50px;
  height: 4px;
  background: var(--brtepl-orange);
  border-radius: 2px;
  margin: 14px 0 22px;
}

.industrial-divider.center {
  margin: 14px auto 22px;
}

/* --------------------------------------------------------------------------
   4. Buttons
   -------------------------------------------------------------------------- */
.btn-brtepl-primary {
  background: var(--brtepl-orange);
  color: var(--brtepl-white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--brtepl-orange);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 14px var(--brtepl-orange-glow);
  transition: all var(--transition-smooth);
}

.btn-brtepl-primary:hover,
.btn-brtepl-primary:focus {
  background: var(--brtepl-orange-hover);
  border-color: var(--brtepl-orange-hover);
  color: var(--brtepl-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 85, 0, 0.3);
}

.btn-brtepl-outline {
  background: transparent;
  color: var(--brtepl-navy);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--brtepl-navy);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition-smooth);
}

.btn-brtepl-outline:hover,
.btn-brtepl-outline:focus {
  background: var(--brtepl-navy);
  color: var(--brtepl-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-sm-custom {
  padding: 8px 18px;
  font-size: 0.88rem;
}

/* --------------------------------------------------------------------------
   5. Top Utility Bar (Industrial Dark Navy Strip)
   -------------------------------------------------------------------------- */
.top-utility-bar {
  background-color: var(--brtepl-navy-dark);
  color: #cbd5e1;
  font-size: 0.825rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 0;
  position: relative;
  z-index: 1040;
}

.top-utility-bar a {
  color: #cbd5e1;
  font-weight: 500;
}

.top-utility-bar a:hover {
  color: var(--brtepl-orange);
}

.utility-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.utility-item i {
  color: var(--brtepl-orange);
  font-size: 0.9rem;
}

.utility-divider {
  width: 1px;
  height: 14px;
  background-color: rgba(255, 255, 255, 0.15);
  margin: 0 12px;
}

.social-links-top {
  display: flex;
  align-items: center;
  gap: 8px;
}

.social-links-top a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #cbd5e1;
  font-size: 0.8rem;
  transition: all var(--transition-fast);
}

.social-links-top a:hover {
  background: var(--brtepl-orange);
  border-color: var(--brtepl-orange);
  color: var(--brtepl-white);
  transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   6. Header & Navigation (Pure Logo Only, No Text in Brand)
   -------------------------------------------------------------------------- */
.main-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: var(--brtepl-white);
  border-bottom: 1px solid var(--brtepl-border);
  box-shadow: 0 2px 14px rgba(4, 30, 66, 0.05);
  transition: all var(--transition-smooth);
}

.main-header.scrolled {
  box-shadow: 0 4px 20px rgba(4, 30, 66, 0.08);
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  padding: 4px 0;
  margin-right: 18px;
}

.brand-logo-img {
  height: 56px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(4, 30, 66, 0.08));
  transition: transform var(--transition-fast);
}

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

/* Navbar Nav Links (NO Underline, NO Hover Line Animation) */
.navbar-nav .nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  color: var(--brtepl-navy);
  padding: 12px 14px !important;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  position: relative;
  transition: color var(--transition-fast);
}

/* Strictly disable any underline or line pseudo-element */
.navbar-nav .nav-link::after {
  display: none !important;
  content: none !important;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus,
.navbar-nav .nav-link.active {
  color: var(--brtepl-orange);
}

/* Top Menu Dropdown Arrow Indicator (Clear Down Arrow without underline) */
.navbar-nav .dropdown-toggle::after {
  display: inline-block !important;
  margin-left: 6px !important;
  vertical-align: 0.16em !important;
  content: "" !important;
  border-top: 5px solid var(--brtepl-orange) !important;
  border-right: 4.5px solid transparent !important;
  border-bottom: 0 !important;
  border-left: 4.5px solid transparent !important;
  transition: transform 0.2s ease !important;
}

.navbar-nav .dropdown.show .dropdown-toggle::after,
.navbar-nav .dropdown:hover .dropdown-toggle::after {
  transform: rotate(180deg) !important;
}

/* Dropdown Menus (Clean Text, No Icons, No Jumpy Animation) */
.dropdown-menu {
  background: var(--brtepl-white);
  border: 1px solid var(--brtepl-border);
  border-radius: var(--radius-sm);
  box-shadow: 0 12px 30px rgba(7, 17, 32, 0.14);
  padding: 6px 0;
  margin-top: 4px;
  min-width: 260px;
}

.dropdown-item {
  font-family: var(--font-body);
  font-size: 0.885rem;
  font-weight: 500;
  color: var(--brtepl-text-body);
  padding: 9px 20px;
  display: block;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.dropdown-item:hover,
.dropdown-item:focus {
  background-color: var(--brtepl-orange-light);
  color: var(--brtepl-orange);
  /* No sliding or padding jump */
}

.dropdown-item.active {
  background-color: var(--brtepl-orange-light);
  color: var(--brtepl-orange);
  font-weight: 700;
}

/* Desktop Hover for Dropdowns - Instant, No Wobbling */
@media (min-width: 992px) {
  .nav-item.dropdown:hover .dropdown-menu {
    display: block;
  }
}

/* --------------------------------------------------------------------------
   7. Hero Section (Authoritative Dark Railway Industrial)
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  background-color: var(--brtepl-navy-dark);
  color: var(--brtepl-white);
  padding: 85px 0 75px;
  overflow: hidden;
}

.hero-bg-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  filter: brightness(0.92) contrast(1.08) saturate(1.1);
  opacity: 1;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    rgba(7, 17, 32, 0.92) 0%,
    rgba(7, 17, 32, 0.80) 0%,
    rgba(7, 17, 32, 0.40) 75%,
    rgba(7, 17, 32, 0.50) 100%
  );
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 85, 0, 0.15);
  border: 1px solid rgba(255, 85, 0, 0.4);
  color: #ff9e80;
  padding: 6px 14px;
  border-radius: 4px;
  font-family: var(--font-heading);
  font-size: 0.825rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(2.3rem, 4.8vw, 3.65rem);
  font-weight: 800;
  color: var(--brtepl-white);
  line-height: 1.18;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
}

.hero-title .text-gradient {
  color: var(--brtepl-orange);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: #e2e8f0;
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 620px;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.5);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.hero-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #e2e8f0;
}

.highlight-item i {
  color: var(--brtepl-orange);
  font-size: 1.1rem;
}

/* Inline Quick Enquiry Card on Hero (Dark Glassmorphism) */
.hero-enquiry-card {
  background: rgba(15, 35, 65, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-top: 4px solid var(--brtepl-orange);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  color: var(--brtepl-white);
}

.hero-enquiry-card h3 {
  font-size: 1.35rem;
  color: var(--brtepl-white);
  margin-bottom: 6px;
  font-weight: 700;
}

.hero-enquiry-card p {
  color: #94a3b8;
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.hero-enquiry-card .form-control,
.hero-enquiry-card .form-select {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: var(--brtepl-white);
  font-size: 0.885rem;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
}

.hero-enquiry-card .form-control::placeholder {
  color: #94a3b8;
}

.hero-enquiry-card .form-control:focus,
.hero-enquiry-card .form-select:focus {
  background: rgba(255, 255, 255, 0.14);
  border-color: var(--brtepl-orange);
  box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.25);
  color: var(--brtepl-white);
}

.hero-enquiry-card .form-select option {
  background: var(--brtepl-navy);
  color: var(--brtepl-white);
}

.hero-enquiry-card .form-label {
  color: #e2e8f0;
  font-size: 0.825rem;
  font-weight: 600;
  margin-bottom: 6px;
}

/* --------------------------------------------------------------------------
   8. Inner Page Hero Banner (Panoramic Railway Nightscape Theme)
   -------------------------------------------------------------------------- */
.inner-page-banner {
  position: relative;
  background-color: var(--brtepl-navy-dark);
  background-image: 
    linear-gradient(
      90deg, 
      rgba(7, 17, 32, 0.92) 0%, 
      rgba(7, 17, 32, 0.80) 42%, 
      rgba(7, 17, 32, 0.40) 75%,
      rgba(7, 17, 32, 0.50) 100%
    ),
    url('../assets/images/inner-banner-bg.png');
  background-position: center right;
  background-size: cover;
  background-repeat: no-repeat;
  color: var(--brtepl-white);
  padding: 70px 0 60px;
  overflow: hidden;
  border-bottom: 4px solid var(--brtepl-orange);
}

.inner-page-banner::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--brtepl-orange) 0%, transparent 100%);
  pointer-events: none;
}

.inner-page-banner h1 {
  color: var(--brtepl-white);
  font-size: clamp(2.1rem, 3.8vw, 2.9rem);
  font-weight: 800;
  margin-bottom: 12px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
  letter-spacing: -0.015em;
}

.inner-page-banner p.lead {
  color: #e2e8f0;
  font-size: 1.08rem;
  max-width: 720px;
  margin-bottom: 14px;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
  line-height: 1.65;
}

.breadcrumb-custom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.865rem;
  font-weight: 600;
  color: #cbd5e1;
  margin-bottom: 8px;
}

.breadcrumb-custom a {
  color: #cbd5e1;
  transition: color var(--transition-fast);
}

.breadcrumb-custom a:hover {
  color: var(--brtepl-orange);
}

.breadcrumb-custom .active {
  color: var(--brtepl-orange);
  font-weight: 700;
}

.breadcrumb-custom span {
  color: rgba(255, 255, 255, 0.45);
}

/* --------------------------------------------------------------------------
   9. Trust Strip (4 White Feature Cards)
   -------------------------------------------------------------------------- */
.feature-strip-section {
  position: relative;
  z-index: 10;
  margin-top: -36px;
  margin-bottom: 45px;
}

.feature-strip-card {
  background: var(--brtepl-white);
  border: 1px solid var(--brtepl-border);
  border-radius: var(--radius-md);
  padding: 24px 18px;
  height: 100%;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-smooth);
}

.feature-strip-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--brtepl-orange);
  transform: scaleX(0);
  transition: transform var(--transition-smooth);
  transform-origin: left;
}

.feature-strip-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(255, 85, 0, 0.3);
}

.feature-strip-card:hover::before {
  transform: scaleX(1);
}

.feature-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--brtepl-orange-subtle);
  color: var(--brtepl-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  margin-bottom: 14px;
  transition: all var(--transition-smooth);
}

.feature-strip-card:hover .feature-icon-box {
  background: var(--brtepl-orange);
  color: var(--brtepl-white);
  transform: scale(1.05);
}

.feature-strip-card h4 {
  font-size: 1.08rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--brtepl-navy);
}

.feature-strip-card p {
  font-size: 0.875rem;
  color: var(--brtepl-text-muted);
  margin-bottom: 0;
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   10. About Us Preview (Light Section)
   -------------------------------------------------------------------------- */
.about-section {
  padding: 80px 0;
  background: var(--brtepl-white);
}

.about-image-wrapper {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  height: 100%;
}

.about-image-wrapper img {
  width: 100%;
  height: 100%;
  min-height: 400px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.about-image-wrapper:hover img {
  transform: scale(1.02);
}

.about-experience-badge {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: var(--brtepl-white);
  color: var(--brtepl-navy);
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--brtepl-orange);
  box-shadow: var(--shadow-lg);
  max-width: 240px;
}

.about-experience-badge .years {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--brtepl-orange);
  line-height: 1;
}

.about-experience-badge .text {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--brtepl-text-muted);
  margin-top: 4px;
}

.about-pillar-list {
  list-style: none;
  padding: 0;
  margin: 20px 0 26px;
}

.about-pillar-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: var(--brtepl-text-body);
}

.about-pillar-list li i {
  color: var(--brtepl-orange);
  font-size: 1.15rem;
  margin-top: 2px;
}

.stats-strip {
  background: var(--brtepl-surface);
  border-radius: var(--radius-md);
  padding: 24px 18px;
  margin-top: 36px;
  border: 1px solid var(--brtepl-border);
}

.stat-item {
  text-align: center;
  padding: 8px 12px;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 15%;
  height: 70%;
  width: 1px;
  background-color: var(--brtepl-border);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--brtepl-navy);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-number span {
  color: var(--brtepl-orange);
}

.stat-label {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--brtepl-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* --------------------------------------------------------------------------
   11. Services Overview Cards
   -------------------------------------------------------------------------- */
.services-section {
  padding: 85px 0;
  background: var(--brtepl-surface);
}

.service-main-card {
  background: var(--brtepl-white);
  border: 1px solid var(--brtepl-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-smooth);
}

.service-main-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(255, 85, 0, 0.35);
}

.service-card-img-box {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.service-card-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.service-main-card:hover .service-card-img-box img {
  transform: scale(1.05);
}

.service-card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--brtepl-navy);
  color: var(--brtepl-white);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 4px;
  border-left: 2px solid var(--brtepl-orange);
}

.service-card-body {
  padding: 26px 22px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.service-card-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--brtepl-navy);
  margin-bottom: 10px;
}

.service-card-desc {
  font-size: 0.915rem;
  color: var(--brtepl-text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
}

.service-sub-links-list {
  list-style: none;
  padding: 0;
  margin: 0 0 20px 0;
  border-top: 1px solid var(--brtepl-border-light);
  padding-top: 12px;
}

.service-sub-links-list li {
  margin-bottom: 7px;
}

.service-sub-links-list a {
  font-size: 0.885rem;
  font-weight: 600;
  color: var(--brtepl-text-body);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  border-radius: 4px;
}

.service-sub-links-list a:hover {
  background: var(--brtepl-orange-light);
  color: var(--brtepl-orange);
  padding-left: 12px;
}

.service-sub-links-list a i {
  color: var(--brtepl-orange);
  font-size: 0.75rem;
}

.service-card-footer {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--brtepl-border);
}

/* --------------------------------------------------------------------------
   12. Why Choose Us
   -------------------------------------------------------------------------- */
.why-choose-section {
  padding: 85px 0;
  background: var(--brtepl-white);
}

.why-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.why-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: var(--brtepl-surface);
  border: 1px solid var(--brtepl-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.why-item:hover {
  background: var(--brtepl-white);
  border-color: var(--brtepl-orange);
  box-shadow: var(--shadow-sm);
  transform: translateX(3px);
}

.why-icon-wrap {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  background: var(--brtepl-orange-subtle);
  color: var(--brtepl-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
}

.why-item h5 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.why-item p {
  font-size: 0.85rem;
  color: var(--brtepl-text-muted);
  margin-bottom: 0;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   13. Gallery / Lightbox Grid
   -------------------------------------------------------------------------- */
.gallery-section {
  padding: 85px 0;
  background: var(--brtepl-surface);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

.gallery-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: var(--brtepl-white);
  border: 1px solid var(--brtepl-border);
  cursor: pointer;
}

.gallery-img-box {
  position: relative;
  height: 230px;
  overflow: hidden;
}

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

.gallery-card:hover .gallery-img-box img {
  transform: scale(1.05);
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to top,
    rgba(4, 30, 66, 0.85) 0%,
    rgba(4, 30, 66, 0.15) 60%,
    transparent 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 16px;
}

.gallery-zoom-icon {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--brtepl-orange);
  color: var(--brtepl-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  opacity: 0;
  transform: scale(0.8);
  transition: all var(--transition-smooth);
}

.gallery-card:hover .gallery-zoom-icon {
  opacity: 1;
  transform: scale(1);
}

.gallery-caption-title {
  color: var(--brtepl-white);
  font-family: var(--font-heading);
  font-size: 1.025rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.gallery-caption-sub {
  color: #e2e8f0;
  font-size: 0.78rem;
}

/* Lightbox Modal */
.brtepl-lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(4, 30, 66, 0.92);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  padding: 16px;
}

.brtepl-lightbox.active {
  display: flex;
  opacity: 1;
}

.lightbox-content {
  max-width: 900px;
  width: 100%;
  background: var(--brtepl-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  position: relative;
}

.lightbox-img-wrapper {
  max-height: 70vh;
  overflow: hidden;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-img-wrapper img {
  width: 100%;
  max-height: 70vh;
  object-fit: contain;
}

.lightbox-caption-bar {
  padding: 14px 18px;
  background: var(--brtepl-white);
  color: var(--brtepl-navy);
  border-top: 1px solid var(--brtepl-border);
}

.lightbox-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 36px;
  height: 36px;
  background: rgba(0, 0, 0, 0.65);
  color: var(--brtepl-white);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  cursor: pointer;
  z-index: 10;
  transition: all var(--transition-fast);
}

.lightbox-close:hover {
  background: var(--brtepl-orange);
}

.lightbox-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--brtepl-navy);
  border: 1px solid var(--brtepl-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 10;
}

.lightbox-nav-btn:hover {
  background: var(--brtepl-orange);
  border-color: var(--brtepl-orange);
  color: var(--brtepl-white);
}

.lightbox-nav-btn.prev { left: 14px; }
.lightbox-nav-btn.next { right: 14px; }

/* --------------------------------------------------------------------------
   14. Process Timeline (4 Steps)
   -------------------------------------------------------------------------- */
.process-section {
  padding: 85px 0;
  background: var(--brtepl-white);
}

.process-timeline {
  position: relative;
  margin-top: 32px;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--brtepl-border),
    var(--brtepl-border) 8px,
    transparent 8px,
    transparent 16px
  );
  z-index: 1;
}

.process-step-col {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 14px;
}

.process-icon-wrap {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--brtepl-white);
  border: 3px solid var(--brtepl-border);
  box-shadow: var(--shadow-sm);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: all var(--transition-smooth);
}

.process-step-col:hover .process-icon-wrap {
  border-color: var(--brtepl-orange);
  background: var(--brtepl-orange-light);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.process-step-number {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--brtepl-orange);
  color: var(--brtepl-white);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.72rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--brtepl-white);
}

.process-icon-wrap i {
  font-size: 1.75rem;
  color: var(--brtepl-navy);
  transition: color var(--transition-smooth);
}

.process-step-col:hover .process-icon-wrap i {
  color: var(--brtepl-orange);
}

.process-step-col h5 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.process-step-col p {
  font-size: 0.865rem;
  color: var(--brtepl-text-muted);
  line-height: 1.5;
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   15. Testimonials (Clean Light Cards)
   -------------------------------------------------------------------------- */
.testimonials-section {
  padding: 85px 0;
  background: var(--brtepl-surface);
}

.testimonial-slider-container {
  max-width: 860px;
  margin: 0 auto;
  position: relative;
}

.testimonial-track {
  position: relative;
  min-height: 240px;
}

.testimonial-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, transform 0.4s ease;
  transform: translateX(20px);
}

.testimonial-slide.active {
  position: relative;
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.testimonial-card {
  background: var(--brtepl-white);
  border: 1px solid var(--brtepl-border);
  border-radius: var(--radius-md);
  padding: 32px 36px;
  box-shadow: var(--shadow-sm);
}

.testimonial-quote-icon {
  font-size: 2.4rem;
  color: var(--brtepl-orange);
  opacity: 0.35;
  line-height: 1;
  margin-bottom: 6px;
}

.testimonial-text {
  font-size: 1.05rem;
  font-style: italic;
  color: var(--brtepl-text-body);
  line-height: 1.65;
  margin-bottom: 20px;
}

.testimonial-author-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--brtepl-border);
  padding-top: 14px;
}

.author-avatar-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--brtepl-orange-light);
  color: var(--brtepl-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.author-info h6 {
  font-size: 0.975rem;
  font-weight: 700;
  margin-bottom: 2px;
  color: var(--brtepl-navy);
}

.author-info p {
  font-size: 0.82rem;
  color: var(--brtepl-text-muted);
  margin-bottom: 0;
}

.author-division-badge {
  background: var(--brtepl-surface);
  border: 1px solid var(--brtepl-border);
  color: var(--brtepl-navy);
  font-size: 0.74rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  display: inline-block;
  margin-top: 4px;
}

.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
}

.slider-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--brtepl-white);
  border: 1px solid var(--brtepl-border);
  color: var(--brtepl-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.slider-btn:hover {
  background: var(--brtepl-orange);
  color: var(--brtepl-white);
  border-color: var(--brtepl-orange);
}

.slider-dots {
  display: flex;
  gap: 8px;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #cbd5e1;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: all var(--transition-fast);
}

.slider-dot.active {
  background: var(--brtepl-orange);
  width: 20px;
  border-radius: 10px;
}

/* --------------------------------------------------------------------------
   16. CTA Banner (Authoritative Dark Navy Industrial Gradient)
   -------------------------------------------------------------------------- */
.cta-banner-section {
  position: relative;
  background: linear-gradient(135deg, var(--brtepl-navy-dark) 0%, var(--brtepl-navy) 60%, #17325c 100%);
  color: var(--brtepl-white);
  padding: 68px 0;
  overflow: hidden;
  border-top: 4px solid var(--brtepl-orange);
}

.cta-banner-section::after {
  content: '';
  position: absolute;
  right: -5%;
  bottom: -50%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 85, 0, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner-title {
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 800;
  color: var(--brtepl-white);
  margin-bottom: 12px;
}

.cta-banner-desc {
  font-size: 1.05rem;
  color: #cbd5e1;
  max-width: 680px;
  margin-bottom: 0;
}

.btn-cta-white {
  background: var(--brtepl-white);
  color: var(--brtepl-navy);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--brtepl-white);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition-smooth);
}

.btn-cta-white:hover {
  background: var(--brtepl-orange);
  border-color: var(--brtepl-orange);
  color: var(--brtepl-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px var(--brtepl-orange-glow);
}

.btn-cta-outline {
  background: transparent;
  color: var(--brtepl-white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  border: 2px solid rgba(255, 255, 255, 0.6);
  transition: all var(--transition-smooth);
}

.btn-cta-outline:hover {
  background: var(--brtepl-white);
  color: var(--brtepl-navy);
  border-color: var(--brtepl-white);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   17. Inner Page Details & Sidebar
   -------------------------------------------------------------------------- */
.inner-service-content {
  padding: 65px 0;
}

.service-hero-img-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 26px;
  height: 360px;
}

.service-hero-img-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-spec-card {
  background: var(--brtepl-surface);
  border: 1px solid var(--brtepl-border);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-bottom: 22px;
}

.service-spec-card h5 {
  font-size: 1.1rem;
  color: var(--brtepl-navy);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-spec-card h5 i {
  color: var(--brtepl-orange);
}

.scope-check-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.scope-check-list li {
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.915rem;
}

.scope-check-list li i {
  color: var(--brtepl-orange);
  font-size: 1rem;
  margin-top: 2px;
  flex-shrink: 0;
}

.compliance-badge-box {
  background: var(--brtepl-orange-light);
  border-left: 4px solid var(--brtepl-orange);
  border-radius: 4px;
  padding: 16px 18px;
  margin: 24px 0;
}

.compliance-badge-box h6 {
  color: var(--brtepl-navy);
  font-weight: 700;
  margin-bottom: 4px;
}

.compliance-badge-box p {
  color: var(--brtepl-text-body);
  font-size: 0.885rem;
  margin-bottom: 0;
}

/* Sidebar Widgets */
.sidebar-widget {
  background: var(--brtepl-white);
  border: 1px solid var(--brtepl-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.sidebar-widget h5 {
  font-size: 1.1rem;
  color: var(--brtepl-navy);
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}

.sidebar-widget h5::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--brtepl-orange);
}

.sidebar-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-nav-list li {
  margin-bottom: 8px;
}

.sidebar-nav-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 13px;
  border-radius: var(--radius-sm);
  background: var(--brtepl-surface);
  font-weight: 600;
  font-size: 0.885rem;
  color: var(--brtepl-text-body);
  border: 1px solid var(--brtepl-border-light);
}

.sidebar-nav-list a:hover,
.sidebar-nav-list a.active {
  background: var(--brtepl-orange);
  border-color: var(--brtepl-orange);
  color: var(--brtepl-white);
}

.sidebar-nav-list a:hover i,
.sidebar-nav-list a.active i {
  color: var(--brtepl-white);
}

.sidebar-nav-list a i {
  color: var(--brtepl-orange);
}

.sidebar-contact-card {
  background: linear-gradient(135deg, #f8fafc 0%, #edf2f7 100%);
  border: 1px solid var(--brtepl-border);
  border-top: 4px solid var(--brtepl-orange);
  border-radius: var(--radius-md);
  padding: 26px 20px;
  text-align: center;
  color: var(--brtepl-text-body);
}

.sidebar-contact-card h5 {
  color: var(--brtepl-navy);
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.sidebar-contact-card p {
  color: var(--brtepl-text-muted);
  font-size: 0.85rem;
  margin-bottom: 16px;
}

/* --------------------------------------------------------------------------
   18. Contact Section & Form
   -------------------------------------------------------------------------- */
.contact-section {
  padding: 80px 0;
  background: var(--brtepl-surface);
}

.contact-card-box {
  background: var(--brtepl-white);
  border: 1px solid var(--brtepl-border);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  height: 100%;
}

.contact-info-panel {
  background: var(--brtepl-white);
  border: 1px solid var(--brtepl-border);
  border-top: 4px solid var(--brtepl-orange);
  border-radius: var(--radius-md);
  padding: 32px;
  height: 100%;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.contact-info-panel h3 {
  color: var(--brtepl-navy);
  font-size: 1.45rem;
  margin-bottom: 6px;
}

.contact-info-panel p.lead-text {
  color: var(--brtepl-text-muted);
  font-size: 0.915rem;
  margin-bottom: 24px;
}

.contact-detail-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
}

.contact-detail-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--brtepl-orange-subtle);
  color: var(--brtepl-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
}

.contact-detail-content h6 {
  color: var(--brtepl-navy);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 3px;
}

.contact-detail-content p {
  color: var(--brtepl-text-body);
  font-size: 0.885rem;
  margin-bottom: 0;
  line-height: 1.5;
}

.gstin-badge-card {
  background: var(--brtepl-surface);
  border: 1px dashed var(--brtepl-orange);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin: 12px 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gstin-label {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--brtepl-text-muted);
  text-transform: uppercase;
}

.gstin-number {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--brtepl-navy);
  letter-spacing: 0.05em;
}

.map-embed-container {
  border-radius: var(--radius-sm);
  overflow: hidden;
  height: 180px;
  margin-top: auto;
  border: 1px solid var(--brtepl-border);
}

.map-embed-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* --------------------------------------------------------------------------
   19. Footer (Authoritative Deep Dark Navy, Logo Only)
   -------------------------------------------------------------------------- */
.main-footer {
  background: var(--brtepl-navy-dark);
  color: #94a3b8;
  padding: 75px 0 0;
  border-top: 4px solid var(--brtepl-orange);
}

.footer-brand .footer-logo-link {
  display: inline-block;
  margin-bottom: 16px;
}

.footer-brand .footer-logo-img {
  height: 64px;
  width: auto;
  background: #ffffff;
  padding: 3px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
  transition: transform var(--transition-fast);
}

.footer-brand .footer-logo-link:hover .footer-logo-img {
  transform: scale(1.05);
}

.footer-brand p {
  font-size: 0.885rem;
  line-height: 1.65;
  color: #94a3b8;
  margin-bottom: 16px;
}

.footer-gstin-box {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
}

.footer-gstin-box .gstin-tag {
  color: var(--brtepl-orange);
  font-weight: 700;
  font-family: var(--font-heading);
  letter-spacing: 0.05em;
}

.footer-gstin-box .gstin-val {
  color: var(--brtepl-white);
  font-weight: 600;
}

.footer-brand .social-links-top a {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #cbd5e1;
}

.footer-brand .social-links-top a:hover {
  background: var(--brtepl-orange);
  border-color: var(--brtepl-orange);
  color: var(--brtepl-white);
}

.footer-heading {
  font-family: var(--font-heading);
  color: var(--brtepl-white);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-heading::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--brtepl-orange);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.885rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--brtepl-white);
  transform: translateX(4px);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.875rem;
  color: #cbd5e1;
}

.footer-contact-item i {
  color: var(--brtepl-orange);
  font-size: 0.95rem;
  margin-top: 3px;
  flex-shrink: 0;
}

.footer-contact-link {
  color: #cbd5e1;
  transition: color var(--transition-fast);
}

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

.footer-bottom-bar {
  background: #040a14;
  padding: 20px 0;
  margin-top: 50px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.825rem;
  color: #64748b;
}

.footer-bottom-bar a {
  color: #94a3b8;
}

.footer-bottom-bar a:hover {
  color: var(--brtepl-orange);
}

/* Modal Header Dark Accent */
.modal-header {
  background-color: var(--brtepl-navy) !important;
  color: var(--brtepl-white) !important;
  border-bottom: 2px solid var(--brtepl-orange) !important;
}

.modal-header .modal-title {
  color: var(--brtepl-white) !important;
}

/* Floating Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 22px;
  right: 22px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--brtepl-orange);
  color: var(--brtepl-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 14px rgba(255, 85, 0, 0.35);
  border: none;
  cursor: pointer;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition-smooth);
}

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

.back-to-top:hover {
  background: var(--brtepl-orange-hover);
  transform: translateY(-3px);
}

/* --------------------------------------------------------------------------
   20. Scroll Reveal
   -------------------------------------------------------------------------- */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-on-scroll.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }
.delay-4 { transition-delay: 0.32s; }

/* --------------------------------------------------------------------------
   21. Advanced Mobile-First Responsive Breakpoints (375px, 768px, 1024px, 1440px)
   -------------------------------------------------------------------------- */

/* Extra Small Devices & Mobile Portrait (375px - 575.98px) */
@media (max-width: 575.98px) {
  body {
    font-size: 0.94rem;
  }

  .top-utility-bar {
    font-size: 0.78rem;
    padding: 5px 0;
  }

  .top-utility-bar .utility-item {
    font-size: 0.76rem;
    margin-right: 8px !important;
  }

  .top-utility-bar .social-links-top {
    display: none;
  }

  .brand-logo-img {
    height: 44px;
  }

  .hero-section {
    padding: 45px 0 35px;
    min-height: auto;
  }

  .hero-overlay {
    background: linear-gradient(
      180deg,
      rgba(7, 17, 32, 0.90) 0%,
      rgba(7, 17, 32, 0.72) 42%,
      rgba(7, 17, 32, 0.85) 100%
    );
  }

  .hero-title {
    font-size: 1.85rem;
    line-height: 1.22;
  }

  .hero-subtitle {
    font-size: 0.975rem;
    margin-bottom: 22px;
  }

  .hero-actions {
    flex-direction: column;
    gap: 10px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-highlights {
    flex-direction: column;
    gap: 8px;
    padding-top: 16px;
  }

  .hero-enquiry-card {
    padding: 20px 16px;
    margin-top: 15px;
  }

  .feature-strip-section {
    margin-top: 10px;
    margin-bottom: 30px;
  }

  .stat-item:not(:last-child)::after {
    display: none;
  }

  .stat-item {
    border-bottom: 1px solid var(--brtepl-border);
    padding-bottom: 12px;
    margin-bottom: 10px;
  }

  .stat-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
  }

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

  .gallery-img-box {
    height: 200px;
  }

  .contact-card-box,
  .contact-info-panel {
    padding: 20px 16px;
  }

  .process-timeline::before {
    display: none;
  }

  .process-step-col {
    margin-bottom: 24px;
  }

  .service-hero-img-card {
    height: 220px;
  }

  .inner-page-banner {
    padding: 46px 0 34px;
    background-position: center center;
    background-image: 
      linear-gradient(
        180deg, 
        rgba(7, 17, 32, 0.90) 0%, 
        rgba(7, 17, 32, 0.75) 50%,
        rgba(7, 17, 32, 0.85) 100%
      ),
      url('../assets/images/inner-banner-bg.png');
  }

  .inner-page-banner h1 {
    font-size: 1.75rem;
  }

  .cta-banner-section {
    padding: 40px 0;
    text-align: center;
  }

  .cta-banner-section .btn {
    width: 100%;
    margin-top: 10px;
  }
}

/* Small Tablets / Large Mobile (576px - 767.98px) */
@media (min-width: 576px) and (max-width: 767.98px) {
  .hero-section {
    padding: 55px 0 45px;
  }

  .hero-overlay {
    background: linear-gradient(
      180deg,
      rgba(7, 17, 32, 0.90) 0%,
      rgba(7, 17, 32, 0.72) 42%,
      rgba(7, 17, 32, 0.85) 100%
    );
  }

  .process-timeline::before {
    display: none;
  }

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

  .service-hero-img-card {
    height: 270px;
  }
}

/* Tablets (768px - 991.98px) */
@media (min-width: 768px) and (max-width: 991.98px) {
  .navbar-nav .nav-link {
    padding: 10px 10px !important;
    font-size: 0.9rem;
  }

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

  .process-timeline::before {
    top: 36px;
  }
}

/* Mobile Navbar Dropdown Specifics */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: var(--brtepl-white);
    padding: 16px;
    border-radius: var(--radius-sm);
    box-shadow: 0 10px 24px rgba(4, 30, 66, 0.08);
    margin-top: 10px;
    border: 1px solid var(--brtepl-border);
  }

  .navbar-nav .nav-link {
    padding: 11px 14px !important;
    border-bottom: 1px solid var(--brtepl-border-light);
    color: var(--brtepl-navy);
  }

  .navbar-nav .dropdown-toggle {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    cursor: pointer;
  }

  .navbar-nav .dropdown-toggle::after {
    margin-left: auto !important;
  }

  .dropdown-menu {
    border: none;
    box-shadow: none;
    background: var(--brtepl-surface);
    padding: 4px 0 8px 14px;
    margin: 4px 0 8px 0;
    border-left: 3px solid var(--brtepl-orange);
  }

  .dropdown-item {
    padding: 8px 14px;
    font-size: 0.875rem;
  }

  .navbar-collapse .btn-brtepl-primary {
    width: 100%;
    margin-top: 14px;
    justify-content: center;
  }
}

/* Large Displays (1440px+) */
@media (min-width: 1440px) {
  .container, .container-lg, .container-xl, .container-xxl {
    max-width: 1360px;
  }
  .hero-title {
    font-size: 3.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal-on-scroll {
    opacity: 1 !important;
    transform: none !important;
  }
}