/* ==========================================================================
   VK GREEN ENGINEERING PVT. LTD. - STYLESHEET
   Description: Premium, conversion-focused corporate solar company stylesheet.
   Theme: Clean, eco-friendly light theme with green, dark green, and yellow accents.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DESIGN TOKENS & ROOT VARIABLES
   -------------------------------------------------------------------------- */
:root {
  /* Color System */
  --primary-green: #3BAA35;
  --primary-green-rgb: 59, 170, 53;
  --dark-green: #1B4332;
  --dark-green-hover: #143225;
  --light-green: #D8F3DC;
  --accent-yellow: #F5D020;
  --accent-yellow-hover: #E0BD19;
  --sky-blue: #0088cc;
  --sky-blue-light: #E8F4FD;
  
  /* Neutral Palette */
  --white: #FFFFFF;
  --off-white: #F8F9FA;
  --light-gray: #E9ECEF;
  --gray-200: #DEE2E6;
  --gray-300: #CED4DA;
  --gray-500: #adb5bd;
  --gray-600: #6C757D;
  --gray-700: #495057;
  --gray-800: #343A40;
  --gray-900: #212529;

  /* Typography */
  --font-primary: 'Inter', sans-serif;
  --font-heading: 'Poppins', sans-serif;
  --font-accent: 'Montserrat', sans-serif;

  /* Spacing System */
  --space-xs: 0.5rem;   /* 8px */
  --space-sm: 1rem;     /* 16px */
  --space-md: 1.5rem;   /* 24px */
  --space-lg: 2.5rem;   /* 40px */
  --space-xl: 4rem;     /* 64px */
  --space-xxl: 6rem;    /* 96px */

  /* Borders & Shadows */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.05);
  --shadow-medium: 0 15px 40px rgba(0, 0, 0, 0.08);
  --shadow-hard: 0 20px 50px rgba(0, 0, 0, 0.12);
  --shadow-green: 0 10px 25px rgba(59, 170, 53, 0.2);
  --shadow-inset: inset 0 2px 4px rgba(0, 0, 0, 0.06);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Layout */
  --container-width: 1240px;
  --header-height: 120px;
  --header-height-sticky: 80px;
}

/* --------------------------------------------------------------------------
   2. RESET & BASE STYLES
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-primary);
  background-color: var(--white);
  color: var(--gray-800);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--dark-green);
  font-weight: 700;
  line-height: 1.25;
}

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

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

input, select, textarea, button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

ul {
  list-style: none;
}

/* --------------------------------------------------------------------------
   3. REUSABLE COMPONENTS
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Section Common Layout */
.section {
  padding: var(--space-xl) 0;
  position: relative;
}

.section-alt {
  background-color: var(--off-white);
}

@media(min-width: 768px) {
  .section {
    padding: var(--space-xxl) 0;
  }
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-xl);
}

.section-tag {
  font-family: var(--font-accent);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--primary-green);
  font-weight: 700;
  display: inline-block;
  margin-bottom: var(--space-xs);
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.5px;
}

@media(min-width: 768px) {
  .section-title {
    font-size: 2.75rem;
  }
}

.section-desc {
  color: var(--gray-600);
  font-size: 1.1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  white-space: nowrap;
  font-family: var(--font-heading);
  padding: 0.75rem 1.75rem;
  font-size: 0.95rem;
}

.btn-primary {
  background-color: var(--primary-green);
  color: var(--white);
  box-shadow: var(--shadow-green);
}

.btn-primary:hover {
  background-color: var(--dark-green);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(27, 67, 50, 0.25);
}

.btn-outline {
  border: 2px solid var(--primary-green);
  color: var(--primary-green);
}

.btn-outline:hover {
  background-color: var(--primary-green);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-outline-green {
  border: 2px solid var(--dark-green);
  color: var(--dark-green);
}

.btn-outline-green:hover {
  background-color: var(--dark-green);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-outline-white {
  border: 2px solid var(--white);
  color: var(--white);
}

.btn-outline-white:hover {
  background-color: var(--white);
  color: var(--dark-green);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.6rem 1.25rem;
  font-size: 0.9rem;
}

.btn-md {
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
}

.btn-lg {
  padding: 1.1rem 2.25rem;
  font-size: 1.05rem;
}

.btn-full {
  width: 100%;
}

.btn-glow {
  animation: buttonGlow 3s infinite alternate;
}

@keyframes buttonGlow {
  0% {
    box-shadow: 0 0 10px rgba(59, 170, 53, 0.4);
  }
  100% {
    box-shadow: 0 0 25px rgba(59, 170, 53, 0.8);
  }
}

/* --------------------------------------------------------------------------
   4. FLOATING ELEMENTS & HEADER & NAVIGATION
   -------------------------------------------------------------------------- */
/* WhatsApp Floating Button */
.whatsapp-float {
  position: fixed;
  bottom: var(--space-md);
  right: var(--space-md);
  background-color: #25D366;
  color: var(--white);
  border-radius: var(--radius-full);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.3);
  z-index: 1000;
  transition: all var(--transition-fast);
  font-weight: 600;
}

.whatsapp-float span {
  display: none;
}

.whatsapp-float:hover {
  transform: scale(1.05) translateY(-2px);
  box-shadow: 0 15px 30px rgba(37, 211, 102, 0.45);
}

@media(min-width: 768px) {
  .whatsapp-float {
    bottom: var(--space-lg);
    right: var(--space-lg);
  }
  .whatsapp-float span {
    display: inline;
  }
}

/* Back to Top */
.back-to-top {
  position: fixed;
  bottom: var(--space-md);
  left: var(--space-md);
  background-color: var(--dark-green);
  color: var(--white);
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-medium);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.back-to-top.active {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--primary-green);
  transform: translateY(-3px);
}

@media(min-width: 768px) {
  .back-to-top {
    bottom: var(--space-lg);
    left: var(--space-lg);
  }
}

/* Header Top Info */
.header {
  position: relative;
  z-index: 1001;
  width: 100%;
}

.header-top {
  background-color: var(--dark-green);
  color: var(--light-green);
  font-size: 0.85rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

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

.header-contact-info {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.header-contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.header-contact-item i {
  color: var(--accent-yellow);
}

.header-social {
  display: flex;
  gap: var(--space-sm);
}

.social-link {
  color: var(--light-green);
  font-size: 1rem;
}

.social-link:hover {
  color: var(--accent-yellow);
  transform: scale(1.15);
}

@media(max-width: 768px) {
  .header-top {
    display: none; /* Hide top bar on mobile for cleanliness */
  }
}

/* Navbar */
.navbar {
  background-color: var(--white);
  padding: 1.25rem 0;
  box-shadow: var(--shadow-soft);
  transition: all var(--transition-medium);
}

.header.sticky .navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 0.85rem 0;
  z-index: 1000;
  background-color: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: var(--shadow-medium);
}

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

/* Logo Design */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-family: var(--font-accent);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--dark-green);
  line-height: 1.1;
  letter-spacing: -0.5px;
}

.logo-sub {
  font-family: var(--font-primary);
  font-weight: 500;
  font-size: 0.75rem;
  color: var(--primary-green);
  letter-spacing: 0.5px;
}

.logo-tagline {
  font-size: 0.6rem;
  color: var(--gray-600);
  font-style: italic;
}

.logo-img {
  max-height: 55px;
  width: auto;
  display: block;
}

.logo-img-footer {
  max-height: 50px;
  width: auto;
  display: block;
}

/* Nav Links & Dropdowns */
.nav-links {
  display: none;
}

@media(min-width: 992px) {
  .nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-md);
  }
  
  .nav-link {
    font-weight: 600;
    color: var(--gray-700);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 4px;
  }
  
  .nav-link:hover, .nav-link.active {
    color: var(--primary-green);
    background-color: var(--off-white);
  }

  .nav-dropdown {
    position: relative;
  }

  .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--white);
    box-shadow: var(--shadow-medium);
    border-radius: var(--radius-md);
    min-width: 220px;
    padding: 0.75rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    z-index: 100;
  }

  .nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .dropdown-menu a {
    display: block;
    padding: 0.6rem var(--space-md);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-700);
  }

  .dropdown-menu a:hover {
    color: var(--primary-green);
    background-color: var(--off-white);
  }
}

.nav-cta {
  display: none;
}

@media(min-width: 992px) {
  .nav-cta {
    display: block;
  }
}

/* Hamburger button */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  z-index: 1100;
}

.hamburger span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--dark-green);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8.5px) rotate(45deg);
}

.hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8.5px) rotate(-45deg);
}

@media(min-width: 992px) {
  .hamburger {
    display: none;
  }
}

/* Mobile Nav Drawer */
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-medium);
}

.mobile-nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav {
  position: fixed;
  top: 0;
  right: -300px;
  width: 300px;
  height: 100%;
  background-color: var(--white);
  z-index: 1060;
  box-shadow: var(--shadow-hard);
  padding: var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  transition: right var(--transition-medium) cubic-bezier(0.77,0,0.175,1);
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav-close {
  align-self: flex-end;
  font-size: 1.8rem;
  color: var(--gray-700);
}

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

.mobile-nav-links a {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark-green);
  display: block;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--light-gray);
}

.mobile-nav-links a:hover {
  color: var(--primary-green);
}

.mobile-nav-cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: auto;
}

.mobile-nav-contact {
  font-size: 0.9rem;
  color: var(--gray-600);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  border-top: 1px solid var(--light-gray);
  padding-top: var(--space-md);
}

/* --------------------------------------------------------------------------
   5. HERO SECTION
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + var(--space-lg)) 0 var(--space-xl);
  overflow: hidden;
}

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

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

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.85) 50%, rgba(255, 255, 255, 0.4) 100%);
}

@media(min-width: 992px) {
  .hero-overlay {
    background: linear-gradient(90deg, rgba(255,255,255,0.98) 0%, rgba(255,255,255,0.9) 45%, rgba(255,255,255,0.6) 70%, rgba(255,255,255,0.1) 100%);
  }
}

.hero-container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
}

@media(min-width: 992px) {
  .hero-container {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.hero-content {
  max-width: 680px;
}

.hero-badge {
  background-color: var(--light-green);
  color: var(--dark-green);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: var(--space-md);
  border: 1px solid rgba(59, 170, 53, 0.2);
}

.hero-badge i {
  color: var(--primary-green);
  font-size: 1.1rem;
}

.hero-title {
  font-family: var(--font-accent);
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: var(--space-md);
  letter-spacing: -1px;
}

.hero-title-accent {
  color: var(--primary-green);
  position: relative;
  display: inline-block;
}

.hero-title-accent::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 8px;
  background-color: var(--accent-yellow);
  z-index: -1;
  opacity: 0.7;
}

@media(min-width: 768px) {
  .hero-title {
    font-size: 3.8rem;
  }
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--gray-700);
  margin-bottom: var(--space-lg);
  font-weight: 500;
  max-width: 600px;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

@media(min-width: 480px) {
  .hero-cta-group {
    flex-direction: row;
  }
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  border-top: 1px solid var(--gray-300);
  padding-top: var(--space-md);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gray-700);
}

.trust-item i {
  color: var(--primary-green);
  font-size: 1.1rem;
}

/* Floating Cards Grid */
.hero-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.hero-card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-medium);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  transition: all var(--transition-medium);
  animation: floatAnim 6s ease-in-out infinite alternate;
  animation-delay: var(--delay);
}

.hero-card:hover {
  transform: translateY(-5px);
  background: var(--white);
  border-color: var(--primary-green);
}

.hero-card-icon {
  width: 44px;
  height: 44px;
  background-color: var(--sky-blue-light);
  color: var(--sky-blue);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.hero-card-value {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--dark-green);
  line-height: 1.1;
}

.hero-card-label {
  font-size: 0.8rem;
  color: var(--gray-600);
  font-weight: 600;
}

/* Color variations for cards */
.card-bill .hero-card-icon { background-color: #FFF3CD; color: #856404; }
.card-subsidy .hero-card-icon { background-color: #D4EDDA; color: #155724; }
.card-life .hero-card-icon { background-color: var(--sky-blue-light); color: var(--sky-blue); }
.card-roi .hero-card-icon { background-color: #F8D7DA; color: #721C24; }

@keyframes floatAnim {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-10px); }
}

/* Animated Sun Rays */
.sun-rays {
  position: absolute;
  top: -150px;
  right: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(245,208,32,0.15) 0%, rgba(245,208,32,0) 70%);
  pointer-events: none;
  animation: rotateSun 40s linear infinite;
}

.ray {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2px;
  height: 250px;
  background: linear-gradient(to top, rgba(245,208,32,0.1) 0%, rgba(245,208,32,0) 100%);
  transform-origin: bottom center;
}

.r1 { transform: translate(-50%, -100%) rotate(0deg); }
.r2 { transform: translate(-50%, -100%) rotate(45deg); }
.r3 { transform: translate(-50%, -100%) rotate(90deg); }
.r4 { transform: translate(-50%, -100%) rotate(135deg); }
.r5 { transform: translate(-50%, -100%) rotate(180deg); }
.r6 { transform: translate(-50%, -100%) rotate(225deg); }
.r7 { transform: translate(-50%, -100%) rotate(270deg); }
.r8 { transform: translate(-50%, -100%) rotate(315deg); }

@keyframes rotateSun {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: var(--gray-600);
  font-size: 0.75rem;
  font-weight: 600;
}

.scroll-dot {
  width: 6px;
  height: 12px;
  background-color: var(--primary-green);
  border-radius: var(--radius-full);
  animation: scrollDotAnim 1.5s infinite;
}

@keyframes scrollDotAnim {
  0% { transform: translateY(0); opacity: 0; }
  50% { opacity: 1; }
  100% { transform: translateY(10px); opacity: 0; }
}

/* --------------------------------------------------------------------------
   6. WHY SOLAR? INFOGRAPHIC
   -------------------------------------------------------------------------- */
.why-solar-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media(min-width: 576px) {
  .why-solar-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media(min-width: 992px) {
  .why-solar-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.why-card {
  background-color: var(--white);
  padding: var(--space-lg) var(--space-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-medium);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  position: relative;
  overflow: hidden;
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: transparent;
  transition: all var(--transition-fast);
}

.why-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
  border-color: transparent;
}

.why-card:hover::before {
  background-color: var(--primary-green);
}

.why-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.icon-green { background-color: var(--light-green); color: var(--primary-green); }
.icon-blue { background-color: var(--sky-blue-light); color: var(--sky-blue); }
.icon-yellow { background-color: #FFF3CD; color: #856404; }

.why-card h3 {
  font-size: 1.3rem;
  color: var(--dark-green);
}

.why-card p {
  color: var(--gray-600);
  font-size: 0.95rem;
}

.why-card-stat {
  font-family: var(--font-accent);
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--primary-green);
  margin-top: auto;
  border-top: 1px solid var(--light-gray);
  padding-top: var(--space-sm);
}

/* --------------------------------------------------------------------------
   7. BEFORE VS AFTER SOLAR
   -------------------------------------------------------------------------- */
.comparison-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  align-items: stretch;
  margin-bottom: var(--space-xl);
}

@media(min-width: 992px) {
  .comparison-container {
    grid-template-columns: 1fr auto 1fr;
  }
}

.comparison-panel {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.panel-before {
  border-left: 6px solid #DC3545;
}

.panel-after {
  border-left: 6px solid var(--primary-green);
  box-shadow: var(--shadow-medium);
}

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

.panel-badge {
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

.badge-bad { background-color: #F8D7DA; color: #721C24; }
.badge-good { background-color: var(--light-green); color: var(--dark-green); }

.comparison-visual {
  height: 180px;
  background-color: var(--off-white);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.electricity-bill-card {
  background-color: var(--white);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--shadow-soft);
  text-align: center;
  border: 1px solid var(--gray-200);
  position: relative;
  z-index: 2;
}

.solar-bill {
  border-color: var(--primary-green);
  background: linear-gradient(135deg, var(--white) 0%, var(--light-green) 100%);
}

.bill-header {
  font-size: 0.85rem;
  color: var(--gray-600);
  font-weight: 600;
  text-transform: uppercase;
}

.bill-amount {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--dark-green);
}

.solar-bill .bill-amount {
  color: var(--primary-green);
}

.bill-month {
  font-size: 0.8rem;
  color: var(--gray-500);
}

.bill-trend {
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: var(--space-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.bill-up { color: #DC3545; }
.bill-down { color: var(--primary-green); }

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

.comparison-list li {
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-weight: 500;
}

.bad-list li i { color: #DC3545; }
.good-list li i { color: var(--primary-green); }

.yearly-cost {
  margin-top: auto;
  border-top: 1px solid var(--light-gray);
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.yearly-cost span {
  font-weight: 600;
  color: var(--gray-600);
}

.yearly-cost strong {
  font-size: 1.4rem;
  font-weight: 800;
}

.cost-bad { color: #DC3545; }
.cost-good { color: var(--primary-green); }

/* VS Divider */
.comparison-vs {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 5;
}

.vs-circle {
  width: 60px;
  height: 60px;
  background-color: var(--dark-green);
  color: var(--accent-yellow);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-accent);
  font-weight: 900;
  font-size: 1.25rem;
  box-shadow: var(--shadow-medium);
  border: 4px solid var(--white);
}

.vs-arrow {
  display: none;
}

@media(min-width: 992px) {
  .vs-arrow {
    display: block;
    color: var(--gray-500);
    font-size: 2rem;
    margin-top: var(--space-xs);
  }
}

/* Savings Chart Component */
.savings-chart {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--gray-200);
}

.chart-title {
  font-size: 1.3rem;
  margin-bottom: var(--space-lg);
  text-align: center;
}

.chart-bars {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: var(--space-xs);
  height: 250px;
  align-items: flex-end;
  border-bottom: 2px solid var(--gray-300);
  padding-bottom: 10px;
}

.chart-bar-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  justify-content: flex-end;
}

.bar {
  width: 100%;
  background-color: var(--primary-green);
  border-top-left-radius: var(--radius-sm);
  border-top-right-radius: var(--radius-sm);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  height: var(--h);
  transition: height var(--transition-slow);
  position: relative;
}

.bar span {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--white);
  transform: rotate(-90deg) translateY(-2px);
  margin-top: var(--space-md);
  white-space: nowrap;
}

@media(min-width: 576px) {
  .bar span {
    transform: none;
    margin-top: var(--space-xs);
    font-size: 0.75rem;
  }
}

.bar-saving {
  background: linear-gradient(180deg, var(--primary-green) 0%, var(--dark-green) 100%);
}

.bar-saving::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 30%;
  background-color: rgba(255,255,255,0.15);
}

.bar-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-600);
  margin-top: var(--space-xs);
}

.chart-caption {
  font-size: 0.8rem;
  color: var(--gray-500);
  text-align: center;
  margin-top: var(--space-sm);
}

/* --------------------------------------------------------------------------
   8. SOLAR SAVINGS CALCULATOR (UI PROTOTYPE)
   -------------------------------------------------------------------------- */
.calculator-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  background-color: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hard);
  border: 1px solid var(--gray-200);
  overflow: hidden;
}

@media(min-width: 992px) {
  .calculator-wrapper {
    grid-template-columns: 1fr 1fr;
  }
}

/* Input Panel */
.calc-input-panel {
  padding: var(--space-lg);
  background-color: var(--off-white);
  border-right: 1px solid var(--gray-200);
}

.calc-panel-title {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 1.4rem;
  margin-bottom: var(--space-lg);
  color: var(--dark-green);
  border-bottom: 2px solid var(--light-green);
  padding-bottom: var(--space-xs);
}

.calc-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.calc-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.calc-field label {
  font-weight: 600;
  color: var(--gray-800);
  font-size: 0.95rem;
}

.calc-input-group {
  display: flex;
  align-items: center;
  background-color: var(--white);
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-sm);
  padding: 0 12px;
  height: 50px;
  transition: all var(--transition-fast);
}

.calc-input-group:focus-within {
  border-color: var(--primary-green);
  box-shadow: 0 0 0 3px rgba(59, 170, 53, 0.15);
}

.calc-prefix {
  color: var(--gray-500);
  font-weight: 700;
  padding-right: 8px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.calc-input-group input {
  flex: 1;
  min-width: 0;
  height: 100%;
  font-weight: 600;
  outline: none;
  border: none;
  background: transparent;
}

.range-slider-wrap {
  margin-top: 6px;
}

.range-slider {
  width: 100%;
  height: 6px;
  background: var(--light-gray);
  border-radius: var(--radius-full);
  outline: none;
  -webkit-appearance: none;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-green);
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  transition: transform 0.1s;
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--gray-500);
  margin-top: 4px;
}

.calc-select {
  height: 50px;
  background-color: var(--white);
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-sm);
  padding: 0 12px;
  font-weight: 600;
  outline: none;
}

.calc-select:focus {
  border-color: var(--primary-green);
}

/* Radio Buttons */
.roof-type-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xs);
}

.roof-option input {
  display: none;
}

.roof-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background-color: var(--white);
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-sm);
  padding: var(--space-xs);
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  transition: all var(--transition-fast);
  cursor: pointer;
  height: 80px;
}

.roof-option input:checked + .roof-btn {
  border-color: var(--primary-green);
  background-color: var(--light-green);
  color: var(--dark-green);
}

/* Results Panel */
.calc-result-panel {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.result-header {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--primary-green);
  border-bottom: 2px solid var(--light-green);
  padding-bottom: var(--space-xs);
  margin-bottom: var(--space-lg);
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.result-card {
  background-color: var(--off-white);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  border: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
}

.result-primary {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--dark-green) 0%, #112d21 100%);
  color: var(--white);
  border-color: transparent;
}

.result-icon {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  font-size: 1.4rem;
  color: var(--gray-500);
  opacity: 0.3;
}

.result-primary .result-icon {
  color: var(--accent-yellow);
  opacity: 0.8;
}

.result-value {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--dark-green);
}

.result-primary .result-value {
  color: var(--accent-yellow);
  font-size: 2.2rem;
}

.result-label {
  font-size: 0.85rem;
  color: var(--gray-600);
  font-weight: 600;
}

.result-primary .result-label {
  color: rgba(255,255,255,0.8);
}

.result-cta {
  background-color: var(--sky-blue-light);
  border: 1px dashed var(--sky-blue);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  align-items: center;
}

.result-cta p {
  font-size: 0.9rem;
  color: var(--gray-700);
}

/* --------------------------------------------------------------------------
   9. WHY CHOOSE VK GREEN
   -------------------------------------------------------------------------- */
.why-vk-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media(min-width: 576px) {
  .why-vk-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media(min-width: 992px) {
  .why-vk-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.why-vk-card {
  background-color: var(--white);
  padding: var(--space-lg) var(--space-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--gray-200);
  position: relative;
  transition: all var(--transition-medium);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.why-vk-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
  border-color: var(--primary-green);
}

.vk-card-number {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-md);
  font-size: 3rem;
  font-weight: 900;
  color: var(--gray-200);
  opacity: 0.4;
  line-height: 1;
}

.why-vk-card-icon {
  font-size: 1.8rem;
  color: var(--primary-green);
}

.why-vk-card h3 {
  font-size: 1.25rem;
}

.why-vk-card p {
  font-size: 0.95rem;
  color: var(--gray-600);
}

/* --------------------------------------------------------------------------
   10. SERVICES SECTION
   -------------------------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media(min-width: 576px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media(min-width: 992px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background-color: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-medium);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.service-img {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.service-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

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

.service-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(27, 67, 50, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.service-card:hover .service-overlay {
  opacity: 1;
}

.service-overlay-btn {
  background-color: var(--white);
  color: var(--dark-green);
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  transform: translateY(10px);
  transition: all var(--transition-fast);
}

.service-card:hover .service-overlay-btn {
  transform: translateY(0);
}

.service-content {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  position: relative;
  padding-top: calc(var(--space-md) + 20px);
}

.service-icon {
  width: 50px;
  height: 50px;
  background-color: var(--primary-green);
  color: var(--white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  position: absolute;
  top: -25px;
  left: var(--space-md);
  box-shadow: var(--shadow-green);
}

.service-content h3 {
  font-size: 1.3rem;
  margin-top: 4px;
}

.service-content p {
  color: var(--gray-600);
  font-size: 0.95rem;
}

.service-range {
  font-family: var(--font-accent);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-green);
  border-top: 1px solid var(--light-gray);
  padding-top: var(--space-xs);
  margin-top: var(--space-xs);
}

/* Service Mini Card variation */
.service-card-mini {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  height: 100%;
}

.service-card-mini .service-icon {
  position: static;
  margin-bottom: 6px;
}

.service-card-mini h3 {
  font-size: 1.15rem;
}

.service-card-mini p {
  font-size: 0.9rem;
  color: var(--gray-600);
}

/* --------------------------------------------------------------------------
   11. INSTALLATION TIMELINE PROCESS
   -------------------------------------------------------------------------- */
.process-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  position: relative;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--light-green);
  z-index: 1;
}

.process-step {
  display: flex;
  gap: var(--space-md);
  position: relative;
  z-index: 2;
}

.step-number {
  width: 44px;
  height: 44px;
  background-color: var(--white);
  border: 3px solid var(--primary-green);
  border-radius: var(--radius-full);
  color: var(--dark-green);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-soft);
  z-index: 3;
}

.step-content {
  background-color: var(--white);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--gray-200);
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
}

.step-content::before {
  content: '';
  position: absolute;
  left: -8px;
  top: 15px;
  width: 15px;
  height: 15px;
  background-color: var(--white);
  border-left: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
  transform: rotate(45deg);
}

.step-icon {
  font-size: 1.5rem;
  color: var(--primary-green);
}

.step-content h3 {
  font-size: 1.2rem;
}

.step-content p {
  font-size: 0.95rem;
  color: var(--gray-600);
}

.step-duration {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary-green);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 4px;
}

@media(min-width: 768px) {
  .process-timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .process-step {
    width: 50%;
  }

  .process-step:nth-child(even) {
    align-self: flex-end;
    flex-direction: row-reverse;
  }

  .process-step:nth-child(even) .step-content::before {
    left: auto;
    right: -8px;
    border-left: none;
    border-bottom: none;
    border-right: 1px solid var(--gray-200);
    border-top: 1px solid var(--gray-200);
  }

  .process-step:nth-child(odd) {
    align-self: flex-start;
  }

  .process-step:nth-child(odd) .step-number {
    position: absolute;
    right: -22px;
    top: 15px;
  }

  .process-step:nth-child(even) .step-number {
    position: absolute;
    left: -22px;
    top: 15px;
  }
}

/* --------------------------------------------------------------------------
   12. INTERACTIVE SECTION - SUNLIGHT CHALLENGE
   -------------------------------------------------------------------------- */
.interactive-wrapper {
  background-color: var(--off-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  padding: var(--space-lg);
  box-shadow: var(--shadow-medium);
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
}

.sun-badge {
  background-color: #FFF3CD;
  color: #856404;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-weight: 700;
  font-size: 0.8rem;
  margin-bottom: var(--space-sm);
}

.interactive-title {
  font-size: 1.8rem;
  margin-bottom: var(--space-xs);
}

.interactive-subtitle {
  color: var(--gray-700);
  font-size: 1.1rem;
  margin-bottom: var(--space-lg);
}

.sunlight-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

@media(min-width: 768px) {
  .sunlight-options {
    grid-template-columns: repeat(4, 1fr);
  }
}

.sunlight-option {
  background-color: var(--white);
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  cursor: pointer;
  transition: all var(--transition-medium);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.sunlight-option:hover {
  transform: translateY(-5px);
  border-color: var(--primary-green);
  box-shadow: var(--shadow-medium);
}

.sunlight-icon {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.option-label {
  width: 28px;
  height: 28px;
  background-color: var(--light-gray);
  color: var(--gray-700);
  border-radius: var(--radius-full);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

.sunlight-option:hover .option-label, .sunlight-option.selected .option-label {
  background-color: var(--primary-green);
  color: var(--white);
}

.option-hours {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--dark-green);
}

.option-desc {
  font-size: 0.8rem;
  color: var(--gray-600);
}

.sunlight-option.selected {
  border-color: var(--primary-green);
  background-color: var(--light-green);
  box-shadow: var(--shadow-soft);
}

/* Result Area */
.sunlight-result {
  background-color: var(--white);
  border: 2px solid var(--primary-green);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-top: var(--space-md);
  animation: scaleIn var(--transition-fast) forwards;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

@keyframes scaleIn {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.result-icon-big {
  font-size: 3rem;
  color: var(--accent-yellow);
}

.sunlight-result h3 {
  font-size: 1.4rem;
  color: var(--dark-green);
}

.sunlight-result p {
  color: var(--gray-700);
  font-size: 1rem;
  max-width: 600px;
  margin-bottom: var(--space-sm);
}

.interactive-cta {
  margin-top: var(--space-md);
  font-size: 0.85rem;
  color: var(--gray-600);
}

/* --------------------------------------------------------------------------
   13. STATS / BENEFITS COUNTER
   -------------------------------------------------------------------------- */
.stats-section {
  position: relative;
  background-color: var(--dark-green);
  color: var(--white);
  padding: var(--space-xl) 0;
  overflow: hidden;
}

.stats-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(59, 170, 53, 0.15) 0%, rgba(27, 67, 50, 0) 80%);
  z-index: 1;
}

.stats-section .container {
  position: relative;
  z-index: 2;
}

.stats-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

.stats-header h2 {
  color: var(--white);
  font-size: 2.2rem;
  margin-bottom: var(--space-xs);
}

.stats-header p {
  color: var(--light-green);
  font-size: 1.1rem;
}

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

@media(min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media(min-width: 992px) {
  .stats-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-sm);
  }
}

.stat-card {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

.stat-icon {
  font-size: 2rem;
  color: var(--accent-yellow);
}

.stat-value {
  font-family: var(--font-accent);
  font-weight: 900;
  font-size: 2rem;
  line-height: 1;
  color: var(--white);
}

@media(min-width: 768px) {
  .stat-value {
    font-size: 2.4rem;
  }
}

.stat-label {
  font-size: 0.85rem;
  color: var(--light-green);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   14. TESTIMONIALS SLIDER
   -------------------------------------------------------------------------- */
.testimonials-slider {
  max-width: 850px;
  margin: 0 auto;
  overflow: hidden;
  position: relative;
  padding: 10px;
}

.testimonials-track {
  display: flex;
  transition: transform var(--transition-medium);
}

.testimonial-card {
  min-width: 100%;
  box-sizing: border-box;
  background-color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-md);
  box-shadow: var(--shadow-medium);
  border: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  text-align: center;
}

@media(min-width: 768px) {
  .testimonial-card {
    padding: var(--space-lg);
  }
}

.testimonial-rating {
  font-size: 1.4rem;
  color: var(--accent-yellow);
}

.testimonial-text {
  font-size: 1.15rem;
  font-style: italic;
  color: var(--gray-800);
  line-height: 1.6;
}

.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-xs);
}

.author-avatar {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  color: var(--white);
}

.avatar-green { background-color: var(--primary-green); }
.avatar-blue { background-color: var(--sky-blue); }
.avatar-yellow { background-color: var(--accent-yellow); color: var(--gray-900); }

.author-info {
  text-align: left;
  display: flex;
  flex-direction: column;
}

.author-info strong {
  font-size: 1.05rem;
  color: var(--dark-green);
}

.author-info span {
  font-size: 0.85rem;
  color: var(--gray-600);
}

.author-info .install-detail {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-green);
}

/* Slider Controls */
.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.slider-btn {
  width: 44px;
  height: 44px;
  background-color: var(--white);
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--gray-700);
  transition: all var(--transition-fast);
}

.slider-btn:hover {
  background-color: var(--primary-green);
  color: var(--white);
  border-color: transparent;
}

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

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background-color: var(--gray-300);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.slider-dot.active {
  width: 24px;
  background-color: var(--primary-green);
}

/* --------------------------------------------------------------------------
   15. GALLERY (MASONRY LAYOUT)
   -------------------------------------------------------------------------- */
.gallery-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-xl);
}

.filter-btn {
  padding: 0.6rem 1.25rem;
  background-color: var(--white);
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--gray-700);
  transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  border-color: var(--primary-green);
  background-color: var(--primary-green);
  color: var(--white);
}

.gallery-masonry {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media(min-width: 576px) {
  .gallery-masonry {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media(min-width: 992px) {
  .gallery-masonry {
    grid-template-columns: repeat(3, 1fr);
  }
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  height: 240px;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

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

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(27,67,50,0) 40%, rgba(27,67,50,0.85) 100%);
  padding: var(--space-md);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-info {
  color: var(--white);
  display: flex;
  flex-direction: column;
}

.gallery-info strong {
  font-size: 1.1rem;
}

.gallery-info span {
  font-size: 0.85rem;
  color: var(--light-green);
}

.gallery-zoom {
  width: 40px;
  height: 40px;
  background-color: var(--white);
  color: var(--dark-green);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-soft);
}

.gallery-zoom:hover {
  background-color: var(--primary-green);
  color: var(--white);
}

/* Tall/Wide layouts for visual interest */
@media(min-width: 992px) {
  .gallery-tall {
    grid-row: span 2;
    height: 500px;
  }
  .gallery-wide {
    grid-column: span 2;
  }
}

.gallery-cta {
  text-align: center;
  margin-top: var(--space-xl);
}

/* Lightbox Modal */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.9);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

.lightbox-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  color: var(--white);
  font-size: 2rem;
}

.lightbox-img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  animation: zoomIn 0.3s forwards;
}

@keyframes zoomIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

/* --------------------------------------------------------------------------
   16. FAQ ACCORDION
   -------------------------------------------------------------------------- */
.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.faq-item {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.faq-question {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark-green);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  transition: background-color var(--transition-fast);
}

.faq-question:hover {
  background-color: var(--off-white);
}

.faq-icon {
  transition: transform var(--transition-fast);
  color: var(--primary-green);
  font-size: 1.25rem;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-medium) ease-out;
}

.faq-answer p {
  padding: 0 var(--space-lg) var(--space-md) var(--space-lg);
  color: var(--gray-600);
  font-size: 0.95rem;
}

.faq-cta {
  text-align: center;
  margin-top: var(--space-xl);
  background-color: var(--light-green);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.faq-cta p {
  font-size: 1.1rem;
  font-weight: 600;
}

.faq-cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: 100%;
}

@media(min-width: 480px) {
  .faq-cta-buttons {
    flex-direction: row;
    justify-content: center;
    width: auto;
  }
}

/* --------------------------------------------------------------------------
   17. CONTACT SECTION & FORMS
   -------------------------------------------------------------------------- */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  align-items: start;
}

@media(min-width: 992px) {
  .contact-wrapper {
    grid-template-columns: 1fr 1.2fr;
  }
}

/* Info Panel */
.contact-info-panel {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-info-panel h3 {
  font-size: 1.5rem;
  border-bottom: 2px solid var(--light-green);
  padding-bottom: var(--space-xs);
}

.contact-info-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact-info-item {
  display: flex;
  gap: var(--space-md);
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  background-color: var(--light-green);
  color: var(--primary-green);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.whatsapp-icon {
  background-color: #D4EDDA;
  color: #25D366;
}

.contact-info-content {
  display: flex;
  flex-direction: column;
}

.info-label {
  font-size: 0.8rem;
  color: var(--gray-500);
  font-weight: 700;
  text-transform: uppercase;
}

.info-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-800);
}

a.info-value:hover {
  color: var(--primary-green);
}

/* Map Placeholder */
.map-placeholder {
  height: 200px;
  background-color: var(--off-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-md);
  text-align: center;
}

.map-pin-anim {
  font-size: 2rem;
  color: var(--primary-green);
  animation: mapPinJump 1.5s infinite alternate;
}

@keyframes mapPinJump {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}

.map-placeholder p {
  font-size: 0.85rem;
  color: var(--gray-600);
}

/* Contact Form Panel */
.contact-form-panel {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-medium);
  border: 1px solid var(--gray-200);
}

.contact-form-panel h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
  border-bottom: 2px solid var(--light-green);
  padding-bottom: var(--space-xs);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media(min-width: 576px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-field label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gray-700);
}

.form-field input, .form-field select, .form-field textarea {
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-sm);
  padding: 0.75rem var(--space-sm);
  background-color: var(--off-white);
  outline: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  background-color: var(--white);
  border-color: var(--primary-green);
  box-shadow: 0 0 0 3px rgba(59, 170, 53, 0.1);
}

.form-note {
  font-size: 0.75rem;
  color: var(--gray-500);
  display: flex;
  align-items: center;
  gap: 4px;
  justify-content: center;
}

/* Success State */
.form-success {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  animation: scaleIn var(--transition-fast) forwards;
}

.success-icon {
  font-size: 4rem;
  color: var(--primary-green);
}

/* Sticky CTAs for Mobile Screens */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  z-index: 998;
  box-shadow: 0 -5px 15px rgba(0,0,0,0.1);
}

@media(min-width: 768px) {
  .sticky-cta {
    display: none;
  }
}

.sticky-cta-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--white);
  font-family: var(--font-heading);
}

.btn-call {
  background-color: var(--dark-green);
}

.btn-visit {
  background-color: var(--primary-green);
}

/* --------------------------------------------------------------------------
   18. FOOTER STYLES
   -------------------------------------------------------------------------- */
.footer {
  background-color: #0E241B;
  color: #8fae9f;
  padding-top: var(--space-xl);
}

.footer-main {
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding-bottom: var(--space-xl);
}

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

@media(min-width: 576px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media(min-width: 992px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: var(--space-lg);
  }
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.footer-logo-name {
  font-family: var(--font-accent);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--white);
  line-height: 1;
}

.footer-logo-sub {
  display: block;
  font-size: 0.75rem;
  color: var(--primary-green);
  letter-spacing: 0.5px;
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-tagline {
  font-size: 0.8rem;
  color: var(--white);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-tagline i {
  color: var(--primary-green);
}

.footer-social {
  display: flex;
  gap: var(--space-sm);
}

.footer-social-link {
  width: 36px;
  height: 36px;
  background-color: rgba(255,255,255,0.04);
  color: #8fae9f;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.footer-social-link:hover {
  background-color: var(--primary-green);
  color: var(--white);
  transform: translateY(-2px);
}

/* Footer Column Title */
.footer-col-title {
  color: var(--white);
  font-size: 1.15rem;
  font-weight: 700;
  position: relative;
  padding-bottom: 6px;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2.5px;
  background-color: var(--primary-green);
}

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

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.9rem;
  color: #8fae9f;
}

.footer-links a:hover {
  color: var(--white);
  transform: translateX(3px);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-contact-item {
  display: flex;
  gap: var(--space-xs);
  font-size: 0.9rem;
}

.footer-contact-item i {
  color: var(--primary-green);
  font-size: 1.1rem;
  margin-top: 2px;
}

a.footer-contact-item:hover {
  color: var(--white);
}

/* Newsletter in Footer */
.footer-newsletter {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-newsletter p {
  font-size: 0.85rem;
}

.newsletter-form {
  display: flex;
  background-color: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  padding: 4px;
  height: 46px;
}

.newsletter-form input {
  width: 100%;
  padding: 0 var(--space-sm);
  color: var(--white);
  outline: none;
  font-size: 0.9rem;
}

.newsletter-form input::placeholder {
  color: #5b796d;
}

.newsletter-form button {
  width: 40px;
  height: 100%;
  background-color: var(--primary-green);
  color: var(--white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast);
}

.newsletter-form button:hover {
  background-color: var(--dark-green);
}

/* Footer Bottom styles */
.footer-bottom {
  padding: var(--space-md) 0;
  font-size: 0.8rem;
  border-top: 1px solid rgba(255,255,255,0.03);
}

.footer-bottom-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

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

.footer-bottom-links {
  display: flex;
  gap: var(--space-md);
}

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

.footer-made i {
  color: var(--accent-yellow);
}

/* --------------------------------------------------------------------------
   19. SCROLL ANIMATION STATES & REVEALS
   -------------------------------------------------------------------------- */
[data-animate] {
  opacity: 0;
  transition: all var(--transition-slow);
}

[data-animate="fade-up"] {
  transform: translateY(30px);
}

[data-animate="fade-in"] {
  transform: none;
}

[data-animate="fade-right"] {
  transform: translateX(-30px);
}

[data-animate="fade-left"] {
  transform: translateX(30px);
}

[data-animate="zoom-in"] {
  transform: scale(0.95);
}

/* Active State Triggered by JS */
[data-animate].animated {
  opacity: 1;
  transform: none;
}

/* Add custom transition delay from style attribute or data attribute */
[data-animate].animated[data-delay="100"] { transition-delay: 0.1s; }
[data-animate].animated[data-delay="200"] { transition-delay: 0.2s; }
[data-animate].animated[data-delay="300"] { transition-delay: 0.3s; }
[data-animate].animated[data-delay="400"] { transition-delay: 0.4s; }
[data-animate].animated[data-delay="500"] { transition-delay: 0.5s; }

/* --------------------------------------------------------------------------
   20. EXTRA SUB-PAGES CUSTOM HERO & DETAILS STYLES
   -------------------------------------------------------------------------- */
.sub-hero {
  background-color: var(--dark-green);
  color: var(--white);
  padding: calc(var(--header-height) + var(--space-md)) 0 var(--space-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.sub-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(59, 170, 53, 0.2) 0%, rgba(27, 67, 50, 0) 80%);
  z-index: 1;
}

.sub-hero .container {
  position: relative;
  z-index: 2;
}

.sub-hero h1 {
  font-family: var(--font-accent);
  font-size: 2.2rem;
  color: var(--white);
  margin-bottom: var(--space-xs);
}

@media(min-width: 768px) {
  .sub-hero h1 {
    font-size: 3rem;
  }
}

.breadcrumbs {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--light-green);
}

.breadcrumbs a {
  color: var(--light-green);
}

.breadcrumbs a:hover {
  color: var(--accent-yellow);
}

.breadcrumbs span {
  color: rgba(255,255,255,0.4);
}

/* Page details layouts */
.details-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media(min-width: 992px) {
  .details-grid {
    grid-template-columns: 2fr 1fr;
  }
}

.details-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.details-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.sidebar-widget {
  background-color: var(--white);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--gray-200);
}

.sidebar-widget h4 {
  font-size: 1.15rem;
  margin-bottom: var(--space-sm);
  border-bottom: 2px solid var(--light-green);
  padding-bottom: var(--space-xs);
}

/* Blog styles */
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media(min-width: 576px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media(min-width: 992px) {
  .blog-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.blog-card {
  background-color: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-medium);
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.blog-img {
  height: 200px;
  overflow: hidden;
}

.blog-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

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

.blog-content {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.blog-meta {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-green);
  display: flex;
  gap: var(--space-sm);
}

.blog-title {
  font-size: 1.2rem;
  color: var(--dark-green);
}

.blog-desc {
  font-size: 0.9rem;
  color: var(--gray-600);
}

.blog-link {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--primary-green);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: var(--space-xs);
}

.blog-link:hover {
  color: var(--dark-green);
}

/* 404 Styles */
.error-page {
  padding: var(--space-xxl) 0;
  text-align: center;
}

.error-container {
  max-width: 500px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.error-code {
  font-family: var(--font-accent);
  font-size: 6rem;
  font-weight: 900;
  color: var(--primary-green);
  line-height: 1;
}

.error-title {
  font-size: 2rem;
}

.error-desc {
  color: var(--gray-600);
}