@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Poppins:wght@600;700;800&display=swap');

/* ==========================================================================
   1. GLOBAL / RESET / TOKENS
   ========================================================================== */

:root {
  /* Brand Tokens */
  --primary-blue: #0A3D91;
  --primary-orange: #FF8C00;
  --dark-blue: #062654;
  --light-blue: #E8F0FE;
  --accent-orange: #FF6B00;
  --white: #FFFFFF;
  --off-white: #F8FAFB;
  --bg-subtle: #F0F4F8;
  --text-dark: #1A1A2E;
  --text-gray: #5A6577;
  --text-light: #8892A0;
  --border-color: #E2E8F0;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(10, 61, 145, 0.06);
  --shadow-md: 0 8px 24px rgba(10, 61, 145, 0.1);
  --shadow-lg: 0 16px 48px rgba(10, 61, 145, 0.12);
  --shadow-xl: 0 24px 64px rgba(10, 61, 145, 0.15);
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.3);
  
  /* Radii */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  
  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Inter', sans-serif;
  color: var(--text-dark);
  background-color: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

h1, h2, h3, h4, h5, h6, .poppins {
  font-family: 'Poppins', sans-serif;
}

a {
  text-decoration: none;
  color: inherit;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 100px 0;
}

/* Typography / Section Titles */
.section-badge {
  display: inline-block;
  background-color: var(--light-blue);
  color: var(--primary-blue);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--dark-blue);
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-gray);
  max-width: 600px;
  margin-bottom: 48px;
}

.text-center { text-align: center; }
.text-center .section-subtitle { margin-left: auto; margin-right: auto; }

/* Utility */
.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }


/* ==========================================================================
   2. SCROLL PROGRESS BAR
   ========================================================================== */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(to right, var(--primary-blue), var(--primary-orange));
  z-index: 10000;
  width: 0%;
  transition: none;
}


/* ==========================================================================
   3. HEADER / NAV — #header
   ========================================================================== */
#header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition);
  background-color: transparent;
}

#header.scrolled {
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

.logo img {
  height: 52px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-dark);
  font-weight: 500;
  position: relative;
  transition: var(--transition);
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--primary-orange);
  transition: var(--transition);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  background-color: var(--primary-orange);
  color: var(--white);
  border-radius: 50px;
  padding: 12px 24px;
  font-weight: 600;
  transition: var(--transition);
  display: inline-block;
}

.nav-cta:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
  color: var(--white);
}
.nav-cta::after { display: none; }

.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  cursor: pointer;
  z-index: 1001;
}

.mobile-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--text-dark);
  transition: var(--transition);
}


/* ==========================================================================
   4. HERO — #hero
   ========================================================================== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: radial-gradient(circle at 70% 30%, var(--light-blue) 0%, var(--white) 70%);
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--border-color) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.5;
  pointer-events: none;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  background-color: var(--light-blue);
  color: var(--primary-blue);
  border-radius: 50px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--dark-blue);
}

.hero-title .highlight {
  color: var(--primary-orange);
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-gray);
  margin-top: 24px;
  max-width: 540px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-top: 32px;
}

.btn-primary {
  background-color: var(--primary-orange);
  color: var(--white);
  padding: 16px 32px;
  border-radius: 50px;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: inline-block;
  text-align: center;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: scale(1.05);
  background-color: var(--accent-orange);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: transparent;
  border: 2px solid var(--primary-blue);
  color: var(--primary-blue);
  padding: 14px 30px;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
  display: inline-block;
  text-align: center;
  cursor: pointer;
}

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

.hero-trust {
  display: flex;
  gap: 24px;
  margin-top: 40px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-gray);
  font-weight: 500;
}

.trust-icon {
  width: 20px;
  height: 20px;
  fill: #38A169;
}

.hero-visual {
  position: relative;
}

.hero-image {
  border-radius: 24px;
  box-shadow: var(--shadow-xl);
  width: 100%;
  object-fit: cover;
}

.floating-card {
  position: absolute;
  padding: 16px;
  border-radius: 16px;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
  animation: float 6s ease-in-out infinite;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: var(--dark-blue);
  font-size: 0.95rem;
}

.floating-card-1 { top: 8%; right: -5%; }
.floating-card-2 { bottom: 15%; left: -8%; animation-delay: 2s; }
.floating-card-3 { top: 45%; right: -10%; animation-delay: 4s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}


/* ==========================================================================
   5. TRUSTED BRANDS — #brands
   ========================================================================== */
#brands {
  background-color: var(--off-white);
  padding: 60px 0;
}

.brands-header {
  text-align: center;
  margin-bottom: 40px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-gray);
}

.brands-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 60px;
  flex-wrap: wrap;
}

.brand-logo {
  height: 48px;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.6);
  transition: var(--transition);
}

.brand-logo:hover {
  filter: grayscale(0%) opacity(1);
}

.brand-item {
  text-align: center;
  opacity: 0.6;
  transition: var(--transition);
  cursor: default;
}

.brand-item:hover {
  opacity: 1;
}

.brand-logo-text {
  font-family: 'Poppins', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--dark-blue);
  text-transform: uppercase;
  letter-spacing: 2px;
  line-height: 1.2;
}

.brand-sub {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-gray);
  margin-top: 2px;
}


/* ==========================================================================
   6. WHY CHOOSE US — #why-choose
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background-color: var(--white);
  padding: 40px 30px;
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: var(--transition);
  border-bottom: 3px solid transparent;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-bottom-color: var(--primary-orange);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background-color: var(--light-blue);
  border-radius: 16px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 auto 20px;
}

.feature-icon svg, .feature-icon img {
  width: 32px;
  height: 32px;
  fill: var(--primary-blue);
}

.feature-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 16px;
  color: var(--dark-blue);
}

.feature-text {
  font-size: 0.95rem;
  color: var(--text-gray);
  margin-top: 8px;
}


/* ==========================================================================
   7. PM SURYA GHAR — #surya-ghar
   ========================================================================== */
#surya-ghar {
  background: linear-gradient(135deg, #062654 0%, #0A3D91 100%);
  color: var(--white);
}

#surya-ghar .section-title {
  color: var(--white);
}

#surya-ghar .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
}

.surya-ghar-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.subsidy-highlight {
  display: block;
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--primary-orange);
  line-height: 1.1;
  margin-bottom: 24px;
}

.eligibility-list {
  list-style: none;
  margin-bottom: 32px;
}

.eligibility-list li {
  position: relative;
  padding-left: 32px;
  margin-bottom: 16px;
  font-size: 1.05rem;
}

.eligibility-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  width: 24px;
  height: 24px;
  background-color: var(--primary-orange);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: bold;
}

.pricing-table {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.pricing-table table {
  width: 100%;
  border-collapse: collapse;
}

.pricing-table th {
  background: rgba(255, 140, 0, 0.3);
  padding: 16px;
  font-weight: 600;
  text-align: left;
}

.pricing-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.95rem;
}

.pricing-table tr:hover {
  background: rgba(255, 255, 255, 0.05);
}

.pricing-table tr:last-child td {
  border-bottom: none;
}

.apply-btn {
  margin-top: 32px;
  font-size: 1.1rem;
  padding: 16px 40px;
}


/* ==========================================================================
   8. CALCULATOR — #calculator
   ========================================================================== */
#calculator {
  background-color: var(--off-white);
}

.calculator-container {
  background-color: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 48px;
  max-width: 900px;
  margin: 0 auto;
}

.calc-input-group {
  margin-bottom: 24px;
}

.calc-input-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--dark-blue);
}

.calc-slider {
  width: 100%;
  -webkit-appearance: none;
  height: 8px;
  background: var(--light-blue);
  border-radius: 4px;
  outline: none;
}

.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-orange);
  cursor: pointer;
  box-shadow: 0 0 0 4px rgba(255, 140, 0, 0.2);
  transition: var(--transition);
}

.calc-slider::-webkit-slider-thumb:hover {
  box-shadow: 0 0 0 8px rgba(255, 140, 0, 0.2);
}

.calc-bill-display {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-blue);
  text-align: center;
  margin: 24px 0;
}

.calc-results {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 32px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.calc-results.visible {
  opacity: 1;
  transform: translateY(0);
}

.calc-result-card {
  background-color: var(--light-blue);
  border-radius: var(--radius-sm);
  padding: 24px;
  text-align: center;
}

.calc-result-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-blue);
}

.calc-result-value.highlight {
  color: var(--primary-orange);
}

.calc-result-label {
  font-size: 0.85rem;
  color: var(--text-gray);
  margin-top: 4px;
}

.calc-result-card.featured {
  background-color: var(--primary-orange);
  color: var(--white);
}

.calc-result-card.featured .calc-result-value,
.calc-result-card.featured .calc-result-label {
  color: var(--white);
}


/* ==========================================================================
   9. SERVICES — #services
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 24px;
}

.service-card {
  background-color: var(--white);
  border-radius: var(--radius-sm);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.service-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(to right, var(--primary-blue), var(--primary-orange));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

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

.service-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-icon img, .service-icon svg {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.service-title {
  font-weight: 600;
  font-size: 1rem;
  color: var(--dark-blue);
}


/* ==========================================================================
   10. INSTALLATION PROCESS — #process
   ========================================================================== */
#process {
  background-color: var(--off-white);
}

.timeline {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
  padding: 40px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 3px;
  height: 100%;
  background: linear-gradient(to bottom, var(--primary-blue), var(--primary-orange));
}

.timeline-item {
  position: relative;
  padding: 20px 0;
  display: flex;
  align-items: flex-start;
  width: 100%;
}

.timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
}

.timeline-dot {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--primary-blue);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  z-index: 2;
  flex-shrink: 0;
  border: 4px solid var(--white);
  box-shadow: var(--shadow-sm);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.timeline-content {
  background-color: var(--white);
  border-radius: var(--radius-sm);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  width: calc(50% - 48px);
}

.timeline-item:nth-child(odd) .timeline-content {
  margin-right: auto;
}

.timeline-item:nth-child(even) .timeline-content {
  margin-left: auto;
}

.timeline-content h3 {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--dark-blue);
}

.timeline-content p {
  font-size: 0.9rem;
  color: var(--text-gray);
  margin-top: 8px;
}


/* ==========================================================================
   11. PROJECT GALLERY — #projects
   ========================================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.project-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}

.project-image {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.project-card:hover .project-image {
  transform: scale(1.08);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 38, 84, 0.9) 0%, transparent 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  color: var(--white);
}

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

.project-tag {
  display: inline-block;
  background-color: var(--primary-orange);
  color: var(--white);
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 8px;
  align-self: flex-start;
  font-weight: 600;
}

.project-title {
  font-weight: 600;
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.project-meta {
  display: flex;
  gap: 16px;
  margin-top: 8px;
  font-size: 0.85rem;
  opacity: 0.85;
}


/* ==========================================================================
   12. TESTIMONIALS — #testimonials
   ========================================================================== */
#testimonials {
  background-color: var(--off-white);
}

.testimonials-carousel {
  overflow: hidden;
  position: relative;
  padding-bottom: 20px;
}

.testimonials-track {
  display: flex;
  transition: transform 0.5s ease;
}

.testimonial-card {
  min-width: 33.333%;
  padding: 16px;
}

.testimonial-inner {
  background-color: var(--white);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.testimonial-stars {
  color: #FFC107;
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.testimonial-text {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-gray);
  font-style: italic;
  flex-grow: 1;
}

.testimonial-author {
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--light-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--primary-blue);
}

.testimonial-name {
  font-weight: 600;
  color: var(--dark-blue);
}

.testimonial-role {
  font-size: 0.85rem;
  color: var(--text-light);
}

.carousel-controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

.carousel-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--border-color);
  transition: var(--transition);
  cursor: pointer;
}

.carousel-dot.active {
  background-color: var(--primary-orange);
  width: 32px;
  border-radius: 12px;
}

.carousel-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

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

.bill-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

.bill-card {
  border-radius: var(--radius-md);
  padding: 32px;
  text-align: center;
}

.bill-card.before {
  background-color: #FFF5F5;
  border-left: 4px solid #E53E3E;
}

.bill-card.after {
  background-color: #F0FFF4;
  border-left: 4px solid #38A169;
}

.bill-amount {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--dark-blue);
  margin: 16px 0;
}


/* ==========================================================================
   13. BENEFITS — #benefits
   ========================================================================== */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.benefit-card {
  background-color: var(--white);
  border-radius: var(--radius-md);
  padding: 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.benefit-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.benefit-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--light-blue), var(--white));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.benefit-icon svg, .benefit-icon img {
  width: 32px;
  height: 32px;
  fill: var(--primary-blue);
}

.benefit-title {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--dark-blue);
  margin-top: 12px;
}

.benefit-text {
  font-size: 0.9rem;
  color: var(--text-gray);
  margin-top: 8px;
}


/* ==========================================================================
   14. FAQ — #faq
   ========================================================================== */
#faq {
  background-color: var(--off-white);
}

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

.faq-item {
  background-color: var(--white);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-question {
  padding: 24px 32px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 1.05rem;
  transition: background-color 0.3s;
  color: var(--dark-blue);
}

.faq-question:hover {
  background-color: #F8FAFB;
}

.faq-icon {
  width: 24px;
  height: 24px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding: 0 32px 24px;
  color: var(--text-gray);
  line-height: 1.8;
}


/* ==========================================================================
   15. CONTACT — #contact
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-form {
  background-color: var(--white);
  border-radius: var(--radius-md);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
  font-size: 0.95rem;
  color: var(--dark-blue);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
  outline: none;
  background-color: var(--white);
  color: var(--text-dark);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(10, 61, 145, 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-submit {
  width: 100%;
  padding: 18px;
  font-size: 1.1rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-info-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background-color: var(--off-white);
  padding: 24px;
  border-radius: var(--radius-sm);
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background-color: var(--light-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary-blue);
}

.contact-map {
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 300px;
  box-shadow: var(--shadow-sm);
  margin-top: 24px;
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  border: none;
}


/* ==========================================================================
   16. FOOTER — #footer
   ========================================================================== */
#footer {
  background-color: var(--dark-blue);
  color: var(--white);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding: 60px 0;
}

.footer-logo img {
  height: 56px;
  margin-bottom: 16px;
}

.footer-tagline {
  font-size: 0.95rem;
  opacity: 0.7;
  margin-top: 12px;
  max-width: 300px;
  line-height: 1.6;
}

.footer-heading {
  font-weight: 600;
  margin-bottom: 20px;
  font-size: 1.1rem;
  position: relative;
}

.footer-heading::after {
  content: '';
  display: block;
  width: 32px;
  height: 3px;
  background-color: var(--primary-orange);
  border-radius: 2px;
  margin-top: 8px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
  display: inline-block;
}

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

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

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

.footer-social a:hover {
  background-color: var(--primary-orange);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  opacity: 0.7;
}


/* ==========================================================================
   17. FLOATING ELEMENTS
   ========================================================================== */
.whatsapp-float {
  position: fixed;
  bottom: 100px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: #25D366;
  color: var(--white);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  animation: pulse 2s infinite;
  transition: transform 0.3s;
}

.whatsapp-float:hover, .call-float:hover {
  transform: scale(1.1);
}

.call-float {
  position: fixed;
  bottom: 32px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--primary-blue);
  color: var(--white);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  transition: transform 0.3s;
}

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--primary-orange);
  color: var(--white);
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4); }
  70% { box-shadow: 0 0 0 16px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}


/* ==========================================================================
   18. ANIMATION CLASSES
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s, transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s, transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s, transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s, transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-scale.active {
  opacity: 1;
  transform: scale(1);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }


/* ==========================================================================
   19. STATS COUNTER
   ========================================================================== */
.stats-section {
  background-color: var(--primary-blue);
  padding: 48px 0;
  color: var(--white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-orange);
}

.stat-label {
  font-size: 0.95rem;
  opacity: 0.8;
  margin-top: 4px;
}


/* ==========================================================================
   20. RESPONSIVE BREAKPOINTS
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-content {
    margin: 0 auto;
  }
  
  .hero-buttons, .hero-trust {
    justify-content: center;
  }
  
  .hero-image {
    max-width: 600px;
    margin: 0 auto;
  }
  
  .timeline::before {
    left: 24px;
  }
  
  .timeline-dot {
    left: 24px;
  }
  
  .timeline-item {
    flex-direction: column !important;
    padding-left: 72px;
  }
  
  .timeline-content {
    width: 100%;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .surya-ghar-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .benefits-grid, .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  section {
    padding: 60px 0;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--dark-blue);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    transform: translateY(-100%);
    transition: transform 0.4s ease;
    z-index: 1000;
  }
  
  .nav-links.active {
    transform: translateY(0);
  }
  
  .nav-links a {
    color: var(--white);
    font-size: 1.2rem;
  }
  
  .mobile-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
    background-color: var(--white);
  }
  
  .mobile-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    background-color: var(--white);
  }
  
  .hero-title {
    font-size: clamp(2rem, 8vw, 2.5rem);
  }
  
  .calc-results {
    grid-template-columns: 1fr;
  }
  
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonial-card {
    min-width: 100%;
  }
  
  .bill-comparison {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 16px;
  }
}

@media (max-width: 480px) {
  section {
    padding: 40px 0;
  }
  
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-buttons a, .hero-buttons button {
    width: 100%;
  }
  
  .features-grid, .benefits-grid, .stats-grid, .services-grid {
    grid-template-columns: 1fr;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .apply-btn {
    width: 100%;
  }
  
  .calculator-container {
    padding: 24px;
  }
  
  .subsidy-highlight {
    font-size: 2.8rem;
  }
}


/* ==========================================================================
   21. CUSTOM SCROLLBAR
   ========================================================================== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background-color: var(--off-white);
}

::-webkit-scrollbar-thumb {
  background-color: var(--primary-blue);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--dark-blue);
}


/* ==========================================================================
   22. LOADING SCREEN
   ========================================================================== */
.loader {
  position: fixed;
  inset: 0;
  background-color: var(--white);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s;
}

.loader.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--light-blue);
  border-top-color: var(--primary-orange);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}