/* CSS Variables for Brand Colors */
      :root {
        --primary-blue: #005b96;
        --accent-blue: #00a6d6;
        --solar-yellow: #f4c430;
        --eco-green: #3fa34d;
        --light-gray: #f6f6f6;
        --slate-gray: #555555;
        --charcoal-black: #1e1e1e;
        --white: #ffffff;
        --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        --transition: all 0.3s ease;
      }

      /* Base Styles */
      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }

      html {
        scroll-behavior: smooth;
      }

      body {
        font-family: "Jost", sans-serif;
        line-height: 1.6;
        color: var(--slate-gray);
        background-color: var(--white);
      }

      h1,
      h2,
      h3,
      h4 {
          font-family: "Garamond", "Times New Roman", serif;
        
        margin-bottom: 1.25rem;
        letter-spacing: 0.3px;
        font-weight: 500;
        line-height: 1.2;
        color: var(--charcoal-black);
       
        
      }

      h1 {
        font-size: 2.5rem;
        font-weight: 400;
      }

      h2 {
        font-size: 2rem;
        position: relative;
        padding-bottom: 0.5rem;
        font-weight: 500;
      }

      h2:after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 0;
        width: 60px;
        height: 3px;
        background-color: var(--accent-blue);
      }

      p {
        margin-bottom: 1rem;
      }

      a {
        text-decoration: none;
        color: var(--primary-blue);
        transition: var(--transition);
      }

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

      .container {
        width: 90%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 15px;
      }

      .section-padding {
        padding: 5rem 0;
      }

      .text-center {
        text-align: center;
      }

      .text-center h2:after {
        left: 50%;
        transform: translateX(-50%);
      }

      .btn {
        display: inline-block;
        padding: 15px 25px;
  border-radius: 50px;
        font-weight: 600;
        text-align: center;
        cursor: pointer;
        transition: var(--transition);
        border: none;
        font-size: 1rem;
      }

      .btn-primary {
        background-color: var(--primary-blue);
        color: var(--white);
      }

      .btn-primary:hover {
        background-color: #003b63;
        transform: translateY(-3px);
      }

      .btn-secondary {
        background-color: var(--accent-blue);
        color: var(--white);
      }

      .btn-secondary:hover {
        background-color: #0085b3;
        transform: translateY(-3px);
      }

      .btn-solar {
        background-color: var(--solar-yellow);
        color: var(--charcoal-black);
      }

      .btn-solar:hover {
        background-color: #e6b420;
        transform: translateY(-3px);
      }

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

      .btn-outline:hover {
        background-color: var(--primary-blue);
        color: var(--white);
        transform: translateY(-3px);
      }

      .highlight {
        color: var(--solar-yellow);
        font-weight: 700;
      }

       /* ================================
      PREMIUM HEADER STYLING
================================ */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding:0;
  background-color: rgb(59, 185, 235);
  box-shadow: var(--shadow);
  z-index: 1000;
  transition: background-color 0.35s ease, 
              padding 0.35s ease, 
              box-shadow 0.35s ease,
              backdrop-filter 0.35s ease;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.35s ease-in-out;
}

.logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 100px;
  width: auto;
  margin-right: 12px;
  transition: height 0.35s ease;
}

.logo-text {
  color: #fff;
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: 1px;
  transition: font-size 0.35s ease, color 0.35s ease;
}

/* Navigation - Simplified */
nav ul {
  display: flex;
  list-style: none;
  gap: 1.5rem; /* Replaced margin-left with gap for cleaner code */
}

nav ul li a {
  color: #000;
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
  transition: color 0.3s ease;
}

nav ul li a:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-blue);
  transition: width 0.3s ease;
}

nav ul li a:hover {
  color: var(--primary-blue);
}

nav ul li a:hover:after {
  width: 100%;
}

/* Header State Classes */
header.header-small {
  padding: 0.6rem 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

header.header-small.header-transparent {
  background-color: rgba(255, 255, 255, 0);
  box-shadow: none;
  backdrop-filter: blur(10px);
}

header.header-small .logo-img {
  height: 65px;
}

header.header-small .logo-text {
  font-size: 1.3rem;
}

header.header-small.header-transparent nav ul li a,
header.header-small:not(.header-transparent) nav ul li a {
  color: #ffffff;
}

header.header-small:not(.header-transparent) {
  background-color: rgb(59, 185, 235);
}

header.header-small:not(.header-transparent) .logo-img {
  height: 70px;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary-blue);
  cursor: pointer;
}
      /* Page Header */
.page-header {
  position: relative;
  background: url("https://images.unsplash.com/photo-1509391366360-2e959784a276?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80") 
    center/cover no-repeat;
  height: 75vh;
  margin-top: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
  padding: 10rem 2rem;
  overflow: hidden;
}

/* Better dark overlay for contrast */
.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.233);
  backdrop-filter: blur(2px);
}

/* Content Styling */
.page-header .container {
  position: relative;
  z-index: 2;
}

.page-header h1 {
  font-size: clamp(2.5rem, 6vw, 3.8rem);
  color: var(--solar-yellow);
  letter-spacing: 1px;
  margin-bottom: 1rem;
  font-weight: 400;
  animation: fadeInDown 1s ease forwards;
}

.page-header .subtitle {
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  max-width: 650px;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
  color: var(--light-gray);
  font-weight: 300;
}

/* Breadcrumb Styling */
.breadcrumb {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  color: #ddd;
  font-weight: 300;
}

.breadcrumb a {
  color: var(--white);
  text-decoration: none;
  transition: color 0.3s ease, text-shadow 0.3s ease;
}

.breadcrumb a:hover {
  color: var(--solar-yellow);
  text-shadow: 0 0 6px rgba(255, 213, 0, 0.6);
}

.breadcrumb span {
  color: #aaa;
}

/* Entrance animation */
@keyframes fadeInDown {
  0% {
    opacity: 0;
    transform: translateY(-30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

      /* Solar Hero */
      .solar-hero {
        background: linear-gradient(
          135deg,
          rgb(0, 0, 0) 0%,
          black 100%
        );
        color: var(--white);
        padding: 4rem 0;
      }

      .hero-content {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
        align-items: center;
      }

      .hero-text h2 {
        color: var(--solar-yellow);
        font-size: 2.5rem;
        margin-bottom: 1.5rem;
      }

      .hero-text h2:after {
        background-color: var(--accent-blue);
      }

      .hero-text p {
        font-size: 1.1rem;
        margin-bottom: 2rem;
        color: rgba(255, 255, 255, 0.712);
      }

      .hero-stats {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
        margin: 2rem 0;
      }

      .hero-stat {
        text-align: center;
        padding: 1.5rem 1rem;
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 8px;
        backdrop-filter: blur(10px);
      }

      .stat-value {
        font-size: 2.5rem;
        font-weight: 700;
        color: var(--solar-yellow);
        display: block;
        margin-bottom: 0.5rem;
      }

      .stat-label {
        font-size: 0.9rem;
        color: rgba(255, 255, 255, 0.9);
      }

      .hero-image {
        background-color: black;
        height: 400px;
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--slate-gray);
        font-size: 1.2rem;
        box-shadow: var(--shadow);
      }

    /* Benefits Section */
/* Benefits Section */
.benefits-section {
  padding: 5rem 0;
  background: linear-gradient(rgba(238, 239, 240, 0.918), rgba(248, 249, 250, 0.788)),
    url("WhatsApp Image 2025-11-27 at 20.12.18_d3f0f74b.jpg");
  background-size: cover;
  background-position: center;
  font-family: 'Poppins', sans-serif;
}

/* Section Titles */
.benefits-section h2 {
  color: var(--accent-blue);
  font-size: 2.6rem;
  font-weight: 500;
  text-align: center;
  margin-bottom: 0.5rem;
  letter-spacing: 1px;
}

.benefits-section p {
  color: rgba(0,0,0,0.75);
  font-size: 1.1rem;
  text-align: center;
  max-width: 650px;
  margin: 0 auto 3rem;
}

/* Hide grid fallback */
.benefits-grid {
  display: none;
}

/* Swiper Wrapper */
.benefits-swiper {
  margin-top: 3rem;
  padding-bottom: 4rem;
}

/* Cards */
.swiper-slide.benefit-card {
  background: rgba(0, 0, 0, 0.9);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.9);
  box-shadow: 0 12px 45px rgba(0, 0, 0, 0.5);
  transition: transform 0.4s ease, box-shadow 0.4s ease, background 0.4s ease;
  width: 320px;
  position: relative;
  overflow: hidden;
}

/* Hover Effects */
.swiper-slide.benefit-card:hover {
  transform: translateY(-10px) scale(1.04);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
  background: rgba(0, 0, 0, 0.95);
}

/* Card Icon */
.benefit-icon {
  font-size: 3.2rem;
  color: var(--solar-yellow);
  margin-bottom: 1.8rem;
  transition: transform 0.4s ease, color 0.4s ease;
}

.swiper-slide.benefit-card:hover .benefit-icon {
  transform: scale(1.15);
  color: #ffd740;
}

/* Card Title */
.swiper-slide.benefit-card h3 {
  color: var(--primary-blue);
  font-size: 1.4rem;
  font-weight: 500;
  margin-bottom: 1rem;
  transition: color 0.3s ease;
}

.swiper-slide.benefit-card:hover h3 {
  color: var(--solar-yellow);
}

/* Card Description */
.swiper-slide.benefit-card p {
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
}

/* Swiper Pagination */
.swiper-pagination-bullet {
  background: var(--solar-yellow);
  opacity: 0.6;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.swiper-pagination-bullet-active {
  opacity: 1;
  transform: scale(1.2);
}
/* Benefit Cards in Carousel */
.swiper-slide.benefit-card {
  background: linear-gradient(
      to bottom,
      rgba(0, 0, 0, 0.95),
      rgba(20, 20, 20, 0.95)
    ); /* darker gradient for better contrast */
  border-radius: 16px;
  padding: 2.5rem 2rem;
  text-align: center;
  color: #ffffff; /* white text for readability */
  box-shadow: 0 12px 45px rgba(0, 0, 0, 0.55);
  transition: transform 0.4s ease, box-shadow 0.4s ease, background 0.4s ease;
  width: 320px;
  position: relative;
  overflow: hidden;
}

/* Hover Effects */
.swiper-slide.benefit-card:hover {
  transform: translateY(-10px) scale(1.04);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
  background: linear-gradient(
      to bottom,
      rgba(0, 0, 0, 1),
      rgba(30, 30, 30, 1)
    );
}

/* Card Title */
.swiper-slide.benefit-card h3 {
  color:var(--primary-blue); /* brighter accent yellow for title */
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 1rem;
  text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}

/* Card Description */
.swiper-slide.benefit-card p {
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.95); /* almost full white for readability */
  text-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

/* Card Icon */
.swiper-slide.benefit-card .benefit-icon {
  font-size: 3.2rem;
  color: var(--solar-yellow);
  margin-bottom: 1.8rem;
  text-shadow: 0 1px 4px rgba(0,0,0,0.4);
}



      /* How It Works */
      .how-it-works {
        padding: 5rem 0;
        background-color: black;
        color: rgba(255, 255, 255, 0.699);
      }
      .how-it-works h2{
        color: var(--solar-yellow);
      }

      .process-steps {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 2rem;
        margin-top: 3rem;
      }

      .process-step {
        text-align: center;
        padding: 2rem 1rem;
        position: relative;
      }

      .step-number {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 60px;
        height: 60px;
        background-color: var(--solar-yellow);
        color: var(--charcoal-black);
        border-radius: 50%;
        font-size: 1.5rem;
        font-weight: 700;
        margin: 0 auto 1.5rem;
      }

      .process-step h3 {
        margin-bottom: 1rem;
        color: var(--primary-blue);
      }

     /* Comparison Section */
.comparison-section {
  background: linear-gradient(rgba(238, 239, 240, 0.918), rgba(248, 249, 250, 0.788)),
          url("WhatsApp\ Image\ 2025-11-27\ at\ 20.12.18_d3f0f74b.jpg");
        background-size: cover;
        background-position: center;
  padding: 4rem 0;
}

.comparison-section h2 {
  font-size: 2.4rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--accent-blue);
}

.comparison-section p {
  font-size: 1.1rem;
  color: black;
}

/* Comparison Table Container */
.comparison-table {
  background-color: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  margin-top: 3rem;
}

/* Header Row */
.comparison-header {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  background-color: var(--primary-blue);
  color: var(--white);
  padding: 1.5rem 2rem;
  font-weight: 600;
 
  letter-spacing: 0.5px;
}

.comparison-header h3 {
  margin: 0;
  color: var(--solar-yellow);
}

/* Data Rows */
.comparison-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid #eee;
  align-items: center;
}

.comparison-row:last-child {
  border-bottom: none;
}

.comparison-row:nth-child(even) {
  background-color: var(--light-gray);
}

.feature-name {
  font-weight: 600;
  color: #333;
}

.solar-check {
  color: var(--eco-green);
  font-weight: 600;
}

.conventional-cross {
  color: #e74c3c;
  font-weight: 600;
}

/* icons (optional) */
.solar-check::before {
  content: "☀️ ";
}

.conventional-cross::before {
  content: "⚙️ ";
}

/* ============================= */
/*     Mobile Responsive Fix     */
/* ============================= */
@media (max-width: 768px) {
  .comparison-header {
    display: none; /* Hide desktop table header */
  }

  .comparison-row {
    grid-template-columns: 1fr;
    padding: 1.2rem 1.2rem;
    margin-bottom: 1rem;
    background-color: var(--white);
    border: 1px solid #eee;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  }

  .comparison-row > div {
    margin: 0.4rem 0;
    padding: 0.6rem 0.8rem;
    border-radius: 6px;
    display: flex;
    align-items: center;
  }

  .feature-name::before {
    content: "Feature: ";
    font-weight: 500;
    color: #444;
    margin-right: 4px;
  }

  .solar-check::before {
    content: "Solar Pump: ";
    font-weight: 700;
    margin-right: 4px;
    color: var(--eco-green);
  }

  .conventional-cross::before {
    content: "Conventional: ";
    font-weight: 700;
    margin-right: 4px;
    color: #e74c3c;
  }
}

/* Extra small devices (phones) */
@media (max-width: 480px) {
  .comparison-section h2 {
    font-size: 1.8rem;
  }
  .comparison-row {
    padding: 1rem;
  }
}

/* Applications Section */
.applications-section {
  padding: 5rem 0;
  background-color: #050505;
  font-family: 'garamond', sans-serif;
}

/* Section Titles */
.section-title {
  color: var(--solar-yellow);
  font-size: 2.6rem;
  margin-bottom: 0.5rem;
  font-weight: 500;
  
  letter-spacing: 1px;
  text-align: center;
}

.section-subtitle {
  color: rgba(255, 255, 255, 0.75);
  font-size: 1.15rem;
  max-width: 650px;
  margin: 0.5rem auto 3rem;
  text-align: center;
  line-height: 1.5;
}

/* Swiper Slider */
.mySwiper {
  margin-top: 3rem;
  padding-bottom: 4rem;
}

/* Individual Cards */
.swiper-slide {
  display: flex;
  flex-direction: column;
  background-color: #111;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 50px rgba(0, 0, 0, 0.5);
  width: 320px;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Card Hover Effect */
.swiper-slide:hover {
  transform: translateY(-10px) scale(1.03);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
}

/* Card Images */
.swiper-slide img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 0.5s ease;
}

.swiper-slide:hover img {
  transform: scale(1.05);
}

/* Gradient overlay on image for premium feel */
.swiper-slide::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 220px;
  background: linear-gradient(to bottom, rgba(0,0,0,0.3), rgba(0,0,0,0.6));
  pointer-events: none;
  border-top-left-radius: 16px;
  border-top-right-radius: 16px;
}

/* Card Content */
.application-content {
  padding: 1.8rem 1.5rem 2rem;
  background-color: #000;
  color: #ccc;
  text-align: center;
  flex: 1;
}

.application-content h3 {
  color: var(--solar-yellow);
  margin-bottom: 0.7rem;
  font-weight: 500;
  font-size: 1.25rem;
}

.application-content p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
}

/* Swiper Pagination */
.swiper-pagination-bullet {
  background: var(--solar-yellow) !important;
  opacity: 0.8;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.swiper-pagination-bullet-active {
  transform: scale(1.2);
  opacity: 1;
}



      /* Systems Section */
      .systems-section {
        background-color: black;
        color: rgba(255, 255, 255, 0.829);
      }
      .systems-section h2{
color: var(--solar-yellow);
      }
          .systems-section h3{
color: var(--solar-yellow);
      }
  

      .systems-tabs {
        display: flex;
        justify-content: center;
        margin-bottom: 2rem;
        border-bottom: 1px solid #ddd;
        
      }

      .system-tab {
        padding: 1rem 2rem;
        background: none;
        border: none;
        font-size: 1.1rem;
        font-weight: 600;
        cursor: pointer;
        transition: var(--transition);
        border-bottom: 3px solid transparent;
        color: var(--solar-yellow);
      }

      .system-tab.active {
        color: var(--solar-yellow);
        border-bottom: 8px solid var(--primary-blue);
      }

      .system-content {
        display: none;
      }

      .system-content.active {
        display: block;
      }

      .system-details {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
        align-items: center;
      }

      .system-specs {
        margin-top: 1.5rem;
      }

      .spec-item {
        display: flex;
        justify-content: space-between;
        padding: 0.8rem 0;
        border-bottom: 1px solid #eee;
        color: rgba(255, 255, 255, 0.575);
      }

      .spec-item:last-child {
        border-bottom: none;
      }

      .system-image {
        background-color: var(--white);
        height: 300px;
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--slate-gray);
        font-size: 1.2rem;
        box-shadow: var(--shadow);
      }

      /* Cost Savings */
      .savings-section {
        background: linear-gradient(
          135deg,
          rgba(0, 0, 0, 0.733) 0%,
          var(--accent-blue) 100%
        );
        color: var(--white);
      }

      .savings-section h2 {
        color: var(--solar-yellow);
        font-weight: 400;
      }

      .savings-section h2:after {
        background-color: var(--white);
      }

      .savings-content {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
        align-items: center;
      }

      .savings-chart {
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 8px;
        padding: 2rem;
        backdrop-filter: blur(10px);
      }

      .chart-bar {
        margin-bottom: 1.5rem;
      }

      .bar-label {
        display: flex;
        justify-content: space-between;
        margin-bottom: 0.5rem;
        font-weight: 500;
      }

      .bar-container {
        height: 30px;
        background-color: rgba(255, 255, 255, 0.2);
        border-radius: 15px;
        overflow: hidden;
      }

      .bar-fill {
        height: 100%;
        background-color: var(--solar-yellow);
        border-radius: 15px;
        display: flex;
        align-items: center;
        justify-content: flex-end;
        padding-right: 10px;
        font-size: 0.8rem;
        font-weight: 600;
        color: var(--charcoal-black);
      }

      .savings-text h3 {
        color: var(--solar-yellow);
        margin-bottom: 1.5rem;
      }

      .savings-text p {
        color: rgba(255, 255, 255, 0.9);
      }

      /* FAQ Section */
      .faq-section {
         background: linear-gradient(rgba(238, 239, 240, 0.973), rgba(248, 249, 250, 0.788)),
          url("WhatsApp\ Image\ 2025-11-27\ at\ 20.12.18_d3f0f74b.jpg");
        background-size: cover;
        background-position: center;
      }
       
      .faq-section h2{
        color: var(--accent-blue);
        font-weight: 400;
      }

      .faq-container {
        max-width: 800px;
        margin: 0 auto;
      }

      .faq-item {
        background-color: var(--white);
        border-radius: 8px;
        margin-bottom: 1rem;
        box-shadow: var(--shadow);
        overflow: hidden;
      }

      .faq-question {
        padding: 1.5rem;
        cursor: pointer;
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-weight: 600;
      }

      .faq-question i {
        transition: var(--transition);
      }

      .faq-answer {
        padding: 0 1.5rem;
        max-height: 0;
        overflow: hidden;
        transition: var(--transition);
      }

      .faq-item.active .faq-answer {
        padding: 0 1.5rem 1.5rem;
        max-height: 500px;
      }

      .faq-item.active .faq-question i {
        transform: rotate(180deg);
      }

      /* CTA Section */
      .cta-section {
        background-color: var(--primary-blue);
        color: var(--white);
        text-align: center;
        padding: 4rem 0;
      }

      .cta-section h2 {
        color: var(--solar-yellow);
        margin-bottom: 1.5rem;
        font-weight: 400;
      }

      .cta-section h2:after {
        display: none;
        color: white;
      }

      .cta-section p {
        max-width: 700px;
        margin: 0 auto 2rem;
      }

      .cta-btns {
        display: flex;
        justify-content: center;
        gap: 1rem;
        
      }

      /* Footer */
      footer {
        background-color: var(--charcoal-black);
        color: var(--white);
        padding: 4rem 0 2rem;
      }

      .footer-content {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 2rem;
        margin-bottom: 3rem;
      }

      .footer-column h3 {
        color: var(--solar-yellow);
        margin-bottom: 1.5rem;
        font-size: 1.2rem;
      }

      .footer-column ul {
        list-style: none;
      }

      .footer-column ul li {
        margin-bottom: 0.8rem;
      }

      .footer-column ul li a {
        color: #ccc;
        transition: var(--transition);
      }

      .footer-column ul li a:hover {
        color: var(--accent-blue);
        padding-left: 5px;
      }

      .contact-info li {
        display: flex;
        align-items: flex-start;
        margin-bottom: 1rem;
      }

      .contact-info li i {
        margin-right: 10px;
        color: var(--accent-blue);
      }

      .social-links {
        display: flex;
        gap: 1rem;
        margin-top: 1.5rem;
      }

      .social-links a {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 50%;
        color: var(--white);
        transition: var(--transition);
      }

      .social-links a:hover {
        background-color: var(--accent-blue);
        transform: translateY(-3px);
      }

      .footer-bottom {
        text-align: center;
        padding-top: 2rem;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        font-size: 0.9rem;
        color: #aaa;
      }

      /* WhatsApp Widget */
      .whatsapp-widget {
        position: fixed;
        bottom: 30px;
        right: 30px;
        z-index: 1000;
      }

      .whatsapp-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 60px;
        height: 60px;
        background-color: #25d366;
        color: var(--white);
        border-radius: 50%;
        font-size: 1.8rem;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        transition: var(--transition);
        animation: pulse 2s infinite;
      }

      .whatsapp-btn:hover {
        transform: scale(1.1);
      }

      @keyframes pulse {
        0% {
          box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
        }
        70% {
          box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
        }
        100% {
          box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
        }
      }

      /* Responsive Styles */
      @media (max-width: 992px) {
        h1 {
          font-size: 2.2rem;
        }

        h2 {
          font-size: 1.8rem;
        }

        .page-header h1 {
          font-size: 2.5rem;
        }

        .hero-content,
        .system-details,
        .savings-content {
          grid-template-columns: 1fr;
        }

        .comparison-header,
        .comparison-row {
          grid-template-columns: 1fr;
        }

        .comparison-header h3:nth-child(2),
        .comparison-header h3:nth-child(3),
        .comparison-row div:nth-child(2),
        .comparison-row div:nth-child(3) {
          display: none;
        }
      }

      @media (max-width: 768px) {
        .mobile-menu-btn {
          display: block;
        }

        nav {
          position: fixed;
          top: 80px;
          left: -100%;
          width: 80%;
          height: calc(70vh - 80px);
          background-color:var(--accent-blue);
          transition: var(--transition);
          box-shadow: var(--shadow);
          padding: 2rem;
        }

        nav.active {
          left: 0;
        }

        nav ul {
          flex-direction: column;
        }

        nav ul li {
          margin: 0 0 1.5rem 0;
        }

        .nav-cta {
          display: none;
        }

        .cta-btns {
          flex-direction: column;
          gap: 1rem;
        }

        .page-header {
          padding: 8rem 0 4rem;
        }

        .section-padding {
          padding: 3rem 0;
        }

        .systems-tabs {
          flex-direction: column;
        }

        .system-tab {
          text-align: center;
        }
      }

      @media (max-width: 576px) {
        .page-header h1 {
          font-size: 2rem;
        }

        .benefits-grid,
        .applications-grid {
          grid-template-columns: 1fr;
        }

        .hero-stats {
          grid-template-columns: 1fr;
        }
      }

            /* Sticky Quote Button */
.sticky-quote {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  background: var(--accent-blue);
  color:white;
  padding: 15px 25px;
  border-radius: 50px;
  box-shadow: 0 5px 15px rgba(179, 0, 0, 0.4);
  font-weight: 500;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sticky-quote:hover {
  background: linear-gradient(135deg, var(--secondary), var(--light-gold));
  color: var(--dark);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(212, 175, 55, 0.4);
}