/* ==========================================================================
   SHIVAM SOLAR - PREMIUM STYLESHEET
   Aesthetics: Modern Emerald & Solar Gold, Clean Glassmorphism & High-Tech Solar
   ========================================================================== */

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

:root {
  /* Brand Color Palette */
  --primary: #059669;
  --primary-dark: #047857;
  --primary-darker: #064E3B;
  --primary-light: #10B981;
  --primary-subtle: #ECFDF5;
  --primary-gradient: linear-gradient(135deg, #059669 0%, #10B981 100%);
  --primary-glow: rgba(16, 185, 129, 0.25);

  --accent: #F59E0B;
  --accent-hover: #D97706;
  --accent-light: #FEF3C7;
  --accent-gradient: linear-gradient(135deg, #F59E0B 0%, #FBBF24 100%);
  --accent-glow: rgba(245, 158, 11, 0.3);

  --sky: #0284C7;
  --sky-light: #E0F2FE;

  /* Neutrals & Dark Theme Elements */
  --dark-950: #060B18;
  --dark-900: #0B132B;
  --dark-800: #0F172A;
  --dark-700: #1E293B;
  --dark-600: #334155;
  --dark-500: #475569;

  --text-main: #0F172A;
  --text-muted: #475569;
  --text-light: #64748B;
  --text-white: #FFFFFF;

  --bg-body: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-alt: #F1F5F9;
  --bg-dark: #0B132B;
  --bg-dark-card: #131E3D;

  --border-color: #E2E8F0;
  --border-focus: #10B981;
  --border-light: rgba(226, 232, 240, 0.8);

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 10px 25px -3px rgba(15, 23, 42, 0.1), 0 4px 6px -2px rgba(15, 23, 42, 0.05);
  --shadow-xl: 0 20px 35px -5px rgba(15, 23, 42, 0.12), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 0 25px rgba(16, 185, 129, 0.35);

  /* Border Radii */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Transitions */
  --trans-fast: 0.18s ease;
  --trans-base: 0.28s ease;
  --trans-smooth: cubic-bezier(0.16, 1, 0.3, 1);

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

  /* Layout Container */
  --container-max: 1240px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

p {
  margin-bottom: 1rem;
  color: var(--text-muted);
}

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

a:hover {
  color: var(--primary-dark);
}

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

ul {
  list-style: none;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: 1rem;
}

/* Layout Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Section Common Spacing */
.section {
  padding: 5rem 0;
  position: relative;
}

.section-dark {
  background-color: var(--dark-900);
  color: var(--text-white);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--text-white);
}

.section-dark p {
  color: #94A3B8;
}

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

/* Section Header Typography */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem auto;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  font-size: 0.825rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-full);
  background: var(--primary-subtle);
  color: var(--primary-dark);
  border: 1px solid rgba(16, 185, 129, 0.25);
  margin-bottom: 1rem;
}

.badge-gold {
  background: var(--accent-light);
  color: var(--accent-hover);
  border-color: rgba(245, 158, 11, 0.3);
}

.badge-dark {
  background: rgba(255, 255, 255, 0.08);
  color: #34D399;
  border-color: rgba(52, 211, 153, 0.3);
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.85rem 1.85rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--trans-base);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  line-height: 1;
}

.btn-primary {
  background: var(--primary-gradient);
  color: var(--text-white);
  box-shadow: 0 4px 14px rgba(5, 150, 105, 0.35);
}

.btn-primary:hover {
  color: var(--text-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(5, 150, 105, 0.45);
}

.btn-gold {
  background: var(--accent-gradient);
  color: #0F172A;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.btn-gold:hover {
  color: #0F172A;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
}

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

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

.btn-white-outline {
  background: transparent;
  color: var(--text-white);
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-white-outline:hover {
  background: var(--text-white);
  color: var(--dark-900);
  border-color: var(--text-white);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.6rem 1.25rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1.1rem 2.2rem;
  font-size: 1.1rem;
}

/* ==========================================================================
   TOP BAR & NAVIGATION
   ========================================================================== */
.topbar {
  background: var(--dark-950);
  color: #94A3B8;
  font-size: 0.85rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.topbar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.topbar-left,
.topbar-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.topbar-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #CBD5E1;
}

.topbar-item a {
  color: #CBD5E1;
}

.topbar-item a:hover {
  color: #34D399;
}

.topbar-subsidy-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(245, 158, 11, 0.15);
  color: #FBBF24;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-xs);
  font-weight: 600;
  font-size: 0.8rem;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Sticky Header & Navbar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--trans-base);
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
  background: rgba(255, 255, 255, 0.98);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  align-items: center;
  height: 52px;
}

.brand-logo img {
  height: 100%;
  width: auto;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--dark-700);
  position: relative;
  padding: 0.5rem 0;
  transition: color var(--trans-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  transition: width var(--trans-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hamburger-btn {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--dark-800);
}

/* Mobile Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 360px;
  height: 100vh;
  background: var(--bg-surface);
  z-index: 1050;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  padding: 2rem 1.5rem;
  transition: right 0.35s var(--trans-smooth);
}

.mobile-nav-drawer.open {
  right: 0;
}

.drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1040;
  opacity: 0;
  visibility: hidden;
  transition: all var(--trans-base);
}

.drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.drawer-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
}

.drawer-links {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.drawer-link {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--dark-800);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0;
}

.drawer-link.active,
.drawer-link:hover {
  color: var(--primary);
}

.drawer-footer {
  margin-top: auto;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  position: relative;
  background: linear-gradient(180deg, #FFFFFF 0%, #F0FDF4 100%);
  padding: 5rem 0 6rem 0;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 4rem;
}

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

.hero-title {
  font-size: clamp(2.4rem, 4.2vw, 3.75rem);
  font-weight: 800;
  line-height: 1.12;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.text-gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-gold {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.18rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2.25rem;
  max-width: 580px;
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  margin-bottom: 2.5rem;
}

.hero-trust-row {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.trust-item-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: #DCFCE7;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.trust-item-text {
  font-size: 0.875rem;
  line-height: 1.3;
}

.trust-item-text strong {
  display: block;
  font-size: 1.05rem;
  color: var(--text-main);
  font-family: var(--font-heading);
}

/* Hero Media Box */
.hero-visual {
  position: relative;
  z-index: 2;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 6px solid #FFFFFF;
}

.hero-image-wrapper img {
  width: 100%;
  height: 440px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.hero-image-wrapper:hover img {
  transform: scale(1.03);
}

/* Floating Trust Badges */
.floating-badge {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  z-index: 3;
  animation: float 4s ease-in-out infinite alternate;
}

.floating-badge-1 {
  top: -15px;
  left: -20px;
}

.floating-badge-2 {
  bottom: -20px;
  right: -15px;
  animation-delay: 2s;
}

.floating-badge-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.bg-emerald {
  background: var(--primary);
}

.bg-gold {
  background: var(--accent);
}

.floating-badge-info h4 {
  font-size: 1.2rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--dark-900);
}

.floating-badge-info p {
  font-size: 0.8rem;
  margin-bottom: 0;
  color: var(--text-muted);
}

@keyframes float {
  0% {
    transform: translateY(0px);
  }

  100% {
    transform: translateY(-10px);
  }
}

/* ==========================================================================
   METRICS / STATS BAR
   ========================================================================== */
.stats-banner {
  background: var(--dark-900);
  color: var(--text-white);
  padding: 3rem 0;
  position: relative;
  overflow: hidden;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item {
  padding: 1rem;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 3.5vw, 3.2rem);
  font-weight: 800;
  color: #34D399;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.95rem;
  color: #94A3B8;
  font-weight: 500;
}

/* ==========================================================================
   SOLAR SAVINGS CALCULATOR (INTERACTIVE WIDGET)
   ========================================================================== */
.calculator-section {
  background: linear-gradient(180deg, #F8FAFC 0%, #F0FDF4 100%);
  padding: 5.5rem 0;
}

.calculator-card {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  padding: 3rem;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.calc-inputs-col h3 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
}

.calc-group {
  margin-bottom: 1.75rem;
}

.calc-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
}

.calc-label {
  font-weight: 600;
  color: var(--dark-700);
  font-size: 0.95rem;
}

.calc-val-pill {
  background: #ECFDF5;
  color: var(--primary-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  padding: 0.25rem 0.8rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.calc-slider {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: #CBD5E1;
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid #FFFFFF;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transition: transform 0.15s ease;
}

.calc-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.calc-radio-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.calc-radio-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.85rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--trans-fast);
}

.calc-radio-card input {
  accent-color: var(--primary);
  width: 18px;
  height: 18px;
}

.calc-radio-card.active,
.calc-radio-card:hover {
  border-color: var(--primary);
  background: var(--primary-subtle);
}

/* Calculator Output Panel */
.calc-results-col {
  background: var(--dark-900);
  color: var(--text-white);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.calc-results-col::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.35) 0%, transparent 70%);
  border-radius: 50%;
}

.calc-res-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding-bottom: 1.25rem;
  margin-bottom: 1.5rem;
}

.calc-res-header p {
  color: #94A3B8;
  font-size: 0.9rem;
  margin-bottom: 0.2rem;
}

.calc-res-header h4 {
  font-size: 2.1rem;
  color: #34D399;
  font-weight: 800;
}

.calc-res-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.calc-res-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.calc-res-card span {
  display: block;
  font-size: 0.8rem;
  color: #94A3B8;
  margin-bottom: 0.3rem;
}

.calc-res-card strong {
  display: block;
  font-size: 1.35rem;
  color: #FFFFFF;
  font-family: var(--font-heading);
}

.calc-subsidy-callout {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.1rem;
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: #FDE68A;
}

/* ==========================================================================
   SERVICES & SOLUTIONS
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--trans-base);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(16, 185, 129, 0.4);
}

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

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

.service-card:hover .service-card-media img {
  transform: scale(1.08);
}

.service-card-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(6px);
  color: #34D399;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
}

.service-card-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-icon-box {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: var(--primary-subtle);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.service-card-title {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.service-card-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.service-features-list {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.service-features-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--dark-600);
}

.service-features-list li svg {
  color: var(--primary);
  flex-shrink: 0;
}

.service-card-footer {
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ==========================================================================
   PRODUCTS CATALOG
   ========================================================================== */
.product-filters {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--dark-700);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--trans-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: var(--text-white);
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.product-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--trans-base);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(16, 185, 129, 0.4);
}

.product-media {
  height: 240px;
  background: #F8FAFC;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

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

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

.product-tech-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(4px);
  color: #FBBF24;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-xs);
  letter-spacing: 0.05em;
}

.product-warranty-tag {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  background: #ECFDF5;
  color: var(--primary-dark);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

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

.product-category {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.4rem;
}

.product-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.product-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.product-specs-table {
  background: var(--bg-alt);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  margin-bottom: 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  font-size: 0.825rem;
}

.spec-cell strong {
  display: block;
  color: var(--dark-800);
}

.spec-cell span {
  color: var(--text-light);
}

.product-actions {
  margin-top: auto;
  display: flex;
  gap: 0.75rem;
}

/* ==========================================================================
   WHY CHOOSE US / FEATURES
   ========================================================================== */
.why-us-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.why-feature-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  padding: 2.25rem 1.75rem;
  text-align: center;
  transition: all var(--trans-base);
}

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

.feature-icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: var(--primary-subtle);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem auto;
  transition: all var(--trans-fast);
}

.why-feature-card:hover .feature-icon-wrapper {
  background: var(--primary);
  color: var(--text-white);
  transform: scale(1.1);
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.feature-text {
  font-size: 0.925rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* ==========================================================================
   INSTALLATION ROADMAP / PROCESS
   ========================================================================== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  position: relative;
}

.process-step-card {
  position: relative;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  transition: all var(--trans-base);
}

.process-step-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: #34D399;
  transform: translateY(-6px);
}

.step-num-pill {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--text-white);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
}

.process-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-white);
}

.process-text {
  font-size: 0.925rem;
  color: #94A3B8;
  margin-bottom: 0;
}

/* ==========================================================================
   PM SURYA GHAR SUBSIDY CALLOUT BANNER
   ========================================================================== */
.subsidy-highlight-banner {
  background: linear-gradient(135deg, #064E3B 0%, #0F172A 100%);
  border-radius: var(--radius-xl);
  padding: 3.5rem;
  color: var(--text-white);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(52, 211, 153, 0.25);
  margin: 3rem 0;
}

.subsidy-highlight-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  align-items: center;
  gap: 3rem;
  position: relative;
  z-index: 2;
}

.subsidy-highlight-banner h3 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  color: var(--text-white);
  margin-bottom: 1rem;
}

.subsidy-highlight-banner p {
  color: #CBD5E1;
  font-size: 1.05rem;
  line-height: 1.6;
}

.subsidy-badges-row {
  display: flex;
  gap: 1.5rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.subsidy-mini-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
}

.subsidy-mini-card strong {
  display: block;
  font-size: 1.5rem;
  color: #FBBF24;
  font-family: var(--font-heading);
}

.subsidy-mini-card span {
  font-size: 0.85rem;
  color: #CBD5E1;
}

/* ==========================================================================
   TESTIMONIALS & REVIEWS
   ========================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.testimonial-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  padding: 2.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--trans-base);
}

.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(16, 185, 129, 0.3);
}

.stars-rating {
  color: #F59E0B;
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.25rem;
}

.testimonial-quote {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.65;
  font-style: italic;
  margin-bottom: 1.75rem;
  flex-grow: 1;
}

.client-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
}

.client-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #E2E8F0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--primary-dark);
  font-size: 1.1rem;
}

.client-info h5 {
  font-size: 1.05rem;
  margin-bottom: 0.15rem;
}

.client-info p {
  font-size: 0.825rem;
  margin-bottom: 0;
  color: var(--text-light);
}

/* ==========================================================================
   CONTACT SECTION & FORMS
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: flex-start;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.contact-card-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--trans-base);
}

.contact-card-box:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.contact-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: var(--primary-subtle);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: 1.15rem;
  margin-bottom: 0.25rem;
}

.contact-details p {
  font-size: 0.925rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

.contact-details a {
  color: var(--dark-800);
  font-weight: 600;
}

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

/* Contact Form */
.contact-form-card {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  box-shadow: var(--shadow-xl);
}

.contact-form-card h3 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dark-700);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: #F8FAFC;
  color: var(--text-main);
  transition: all var(--trans-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  background: #FFFFFF;
  box-shadow: 0 0 0 4px var(--primary-glow);
}

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

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: var(--dark-950);
  color: #94A3B8;
  padding: 5rem 0 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: 3.5rem;
  margin-bottom: 4rem;
}

.footer-brand p {
  color: #94A3B8;
  font-size: 0.95rem;
  margin: 1.25rem 0 1.5rem 0;
  line-height: 1.6;
}

.footer-social-row {
  display: flex;
  gap: 0.75rem;
}

.social-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #CBD5E1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--trans-fast);
}

.social-btn:hover {
  background: var(--primary);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 1.15rem;
  margin-bottom: 1.5rem;
  position: relative;
  padding-bottom: 0.6rem;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--primary);
}

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

.footer-links a {
  color: #94A3B8;
  font-size: 0.925rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--trans-fast);
}

.footer-links a:hover {
  color: #34D399;
  transform: translateX(4px);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
}

/* ==========================================================================
   FLOATING WHATSAPP BUTTON
   ========================================================================== */
.whatsapp-floating-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  width: 62px;
  height: 62px;
  border-radius: 50%;
  background: #25D366;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  text-decoration: none;
}

.whatsapp-floating-btn:hover {
  transform: scale(1.08) translateY(-3px);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6);
  color: #FFFFFF;
}

.whatsapp-floating-btn svg {
  width: 36px;
  height: 36px;
  fill: #FFFFFF;
  display: block;
}

.whatsapp-badge-dot {
  position: absolute;
  top: 0px;
  right: 0px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #EF4444;
  border: 2px solid #FFFFFF;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
  animation: pulse-badge 2s infinite;
}

@keyframes pulse-badge {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
  }

  70% {
    transform: scale(1.1);
    box-shadow: 0 0 0 5px rgba(239, 68, 68, 0);
  }

  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
  }
}

.whatsapp-tooltip {
  position: absolute;
  right: 74px;
  background: var(--dark-900);
  color: white;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--trans-fast);
  box-shadow: var(--shadow-md);
}

.whatsapp-floating-btn:hover .whatsapp-tooltip {
  opacity: 1;
}

/* ==========================================================================
   QUOTE MODAL
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(11, 19, 43, 0.75);
  backdrop-filter: blur(6px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--trans-base);
  padding: 1.5rem;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  position: relative;
  transform: scale(0.95);
  transition: transform var(--trans-base);
}

.modal-overlay.open .modal-content {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: #F1F5F9;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: all var(--trans-fast);
}

.modal-close-btn:hover {
  background: #E2E8F0;
  color: var(--text-main);
}

/* Inner Page Hero (for About, Products, Services, Contact) */
.page-hero {
  background: linear-gradient(135deg, var(--dark-950) 0%, var(--dark-800) 100%);
  color: var(--text-white);
  padding: 5rem 0 4.5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.25) 0%, transparent 70%);
  filter: blur(40px);
}

.page-hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto;
}

.breadcrumbs {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: #94A3B8;
  margin-bottom: 1.25rem;
}

.breadcrumbs a {
  color: #CBD5E1;
}

.breadcrumbs a:hover {
  color: #34D399;
}

.breadcrumbs span {
  color: #64748B;
}

/* ==========================================================================
   RESPONSIVE DESIGN BREAKPOINTS
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

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

  .calculator-card {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .topbar {
    display: none;
  }

  .nav-menu,
  .nav-actions .btn {
    display: none;
  }

  .hamburger-btn {
    display: block;
  }

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

  .subsidy-highlight-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .services-grid,
  .products-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .why-us-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .form-grid-2 {
    grid-template-columns: 1fr;
  }

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

  .floating-badge {
    position: static;
    margin-top: 1rem;
    animation: none;
  }
}