/* Spark Grid Energy - White & Green Theme */
:root {
  --green-primary: #1a8f4a;
  --green-dark: #0d6b35;
  --green-light: #e8f5ee;
  --green-accent: #25a85c;
  --white: #ffffff;
  --gray-50: #f8faf9;
  --gray-100: #f0f4f2;
  --gray-200: #e2e8e4;
  --gray-600: #5a6b60;
  --gray-800: #2d3b32;
  --text: #1a2e22;
  --shadow: 0 4px 24px rgba(26, 143, 74, 0.08);
  --shadow-lg: 0 12px 40px rgba(26, 143, 74, 0.12);
  --radius: 12px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: var(--white);
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

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

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--white);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
  transition: box-shadow var(--transition);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 48px;
  height: 48px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-text .brand {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--green-primary);
  letter-spacing: 0.5px;
}

.logo-text .tagline {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--gray-600);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-800);
  padding: 8px 14px;
  border-radius: 6px;
  transition: all var(--transition);
}

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

.nav .dropdown {
  position: relative;
}

.nav .dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition);
}

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

.nav .dropdown-menu a {
  display: block;
  padding: 10px 20px;
  border-radius: 0;
}

.nav .dropdown-menu a:hover {
  background: var(--green-light);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--green-primary);
  transition: var(--transition);
}

/* Hero */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  margin-top: 80px;
  background: linear-gradient(135deg, rgba(26, 143, 74, 0.85) 0%, rgba(13, 107, 53, 0.9) 100%),
    url('https://images.unsplash.com/photo-1497435334941-8c899ee9e8e9?w=1920&q=80') center/cover no-repeat;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(255, 255, 255, 0.15) 0%, transparent 60%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  padding: 80px 0;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.1;
  text-transform: uppercase;
  text-shadow: 2px 2px 0 var(--green-dark), -1px -1px 0 var(--green-accent);
  margin-bottom: 32px;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--white);
  color: var(--green-primary);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 16px 32px;
  border-radius: 50px;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition);
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
  background: var(--green-light);
}

.hero-cta svg {
  width: 20px;
  height: 20px;
}

/* Welcome Section */
.welcome {
  padding: 80px 0;
  background: var(--white);
}

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

.welcome h2 {
  font-size: 2rem;
  color: var(--green-primary);
  margin-bottom: 20px;
  font-weight: 700;
}

.welcome p {
  color: var(--gray-600);
  font-size: 1.05rem;
  margin-bottom: 28px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--green-primary);
  color: var(--white);
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  transition: all var(--transition);
}

.btn-primary:hover {
  background: var(--green-dark);
  transform: translateY(-1px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--green-primary);
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 8px;
  border: 2px solid var(--green-primary);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all var(--transition);
}

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

/* Stats */
.stats {
  background: var(--green-primary);
  padding: 60px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item h3 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 8px;
}

.stat-item p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
  font-weight: 500;
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 2rem;
  color: var(--green-primary);
  font-weight: 700;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
}

/* Services */
.services {
  padding: 80px 0;
  background: var(--gray-50);
}

.service-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 64px;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.service-card:nth-child(even) {
  direction: rtl;
}

.service-card:nth-child(even) > * {
  direction: ltr;
}

.service-card img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.service-card-content {
  padding: 40px;
}

.service-card h3 {
  font-size: 1.75rem;
  color: var(--green-primary);
  margin-bottom: 12px;
  font-weight: 700;
}

.service-card h4 {
  font-size: 1.1rem;
  color: var(--gray-800);
  margin-bottom: 16px;
  font-weight: 600;
}

.service-card p {
  color: var(--gray-600);
  margin-bottom: 24px;
}

/* Clients */
.clients {
  padding: 60px 0;
  background: var(--white);
}

.clients-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 48px;
  opacity: 0.7;
}

.client-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-600);
  padding: 16px 32px;
  border: 2px solid var(--gray-200);
  border-radius: 8px;
}

/* Mission */
.mission {
  padding: 80px 0;
  background: var(--green-light);
  text-align: center;
}

.mission h2 {
  font-size: 1.5rem;
  color: var(--green-primary);
  font-weight: 600;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.mission h3 {
  font-size: 1.75rem;
  color: var(--text);
  font-weight: 700;
  max-width: 800px;
  margin: 0 auto 20px;
  line-height: 1.4;
}

.mission p {
  color: var(--gray-600);
  max-width: 700px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* Why Us */
.why-us {
  padding: 80px 0;
  background: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.feature-card {
  text-align: center;
  padding: 32px 24px;
  border-radius: var(--radius);
  background: var(--gray-50);
  transition: all var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  background: var(--white);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: var(--green-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--green-primary);
}

.feature-card h4 {
  font-size: 1.1rem;
  color: var(--green-primary);
  margin-bottom: 12px;
  font-weight: 700;
}

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

/* Rebates */
.rebates {
  padding: 80px 0;
  background: var(--gray-50);
}

.rebates-intro {
  max-width: 800px;
  margin: 0 auto 48px;
  text-align: center;
}

.rebates-intro p {
  color: var(--gray-600);
  margin-bottom: 16px;
}

.rebate-cards {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.rebate-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px 16px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border-top: 4px solid var(--green-primary);
}

.rebate-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.rebate-card h4 {
  font-size: 1rem;
  color: var(--green-primary);
  margin-bottom: 8px;
  font-weight: 700;
}

.rebate-card p {
  font-size: 0.8rem;
  color: var(--gray-600);
  line-height: 1.4;
}

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

/* Testimonials */
.testimonials {
  padding: 80px 0;
  background: var(--white);
}

.testimonial-slider {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.testimonial-card {
  background: var(--green-light);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  display: none;
}

.testimonial-card.active {
  display: block;
}

.testimonial-card p {
  font-size: 1.1rem;
  color: var(--text);
  font-style: italic;
  margin-bottom: 20px;
  line-height: 1.7;
}

.testimonial-card .author {
  font-weight: 700;
  color: var(--green-primary);
}

.testimonial-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

.testimonial-dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: var(--gray-200);
  cursor: pointer;
  transition: var(--transition);
}

.testimonial-dots button.active {
  background: var(--green-primary);
}

/* Partners */
.partners {
  padding: 60px 0;
  background: var(--gray-50);
  text-align: center;
}

.partners-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
  margin-top: 32px;
}

.partner-badge {
  background: var(--white);
  padding: 20px 36px;
  border-radius: 8px;
  font-weight: 600;
  color: var(--gray-600);
  box-shadow: var(--shadow);
}

/* Contact Section */
.contact-section {
  padding: 80px 0;
  background: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
}

.contact-info h3 {
  font-size: 1.5rem;
  color: var(--green-primary);
  margin-bottom: 16px;
}

.contact-benefits li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--gray-600);
}

.contact-benefits li::before {
  content: '✓';
  color: var(--green-primary);
  font-weight: 700;
  flex-shrink: 0;
}

.contact-form {
  background: var(--gray-50);
  padding: 40px;
  border-radius: var(--radius);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition);
  background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--green-primary);
}

.form-submit {
  width: 100%;
  margin-top: 8px;
}

.form-message {
  margin-top: 16px;
  padding: 12px;
  border-radius: 8px;
  display: none;
}

.form-message.success {
  display: block;
  background: var(--green-light);
  color: var(--green-dark);
}

.form-message.error {
  display: block;
  background: #fde8e8;
  color: #c0392b;
}

/* Page Hero (inner pages) */
.page-hero {
  margin-top: 80px;
  padding: 80px 0;
  background: linear-gradient(135deg, var(--green-primary) 0%, var(--green-dark) 100%);
  text-align: center;
  color: var(--white);
}

.page-hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

/* Content Page */
.page-content {
  padding: 80px 0;
}

.page-content h2 {
  font-size: 1.75rem;
  color: var(--green-primary);
  margin-bottom: 20px;
}

.page-content h3 {
  font-size: 1.25rem;
  color: var(--gray-800);
  margin: 32px 0 12px;
}

.page-content p {
  color: var(--gray-600);
  margin-bottom: 16px;
  line-height: 1.7;
}

.page-content ul {
  list-style: disc;
  padding-left: 24px;
  color: var(--gray-600);
  margin-bottom: 16px;
}

.page-content ul li {
  margin-bottom: 8px;
}

/* Careers */
.job-card {
  background: var(--gray-50);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
  border-left: 4px solid var(--green-primary);
}

.job-card h3 {
  color: var(--green-primary);
  margin-bottom: 8px;
}

.job-card .location {
  color: var(--gray-600);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

/* Footer */
.footer {
  background: var(--gray-800);
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 20px;
  font-weight: 700;
}

.footer-links a {
  display: block;
  padding: 6px 0;
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--green-accent);
}

.footer-contact p {
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.footer-contact a {
  color: var(--green-accent);
}

.footer-contact a:hover {
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
}

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

.social-links a {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.social-links a:hover {
  background: var(--green-primary);
}

/* Responsive */
@media (max-width: 1024px) {
  .stats-grid,
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .rebate-cards {
    grid-template-columns: repeat(3, 1fr);
  }

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

@media (max-width: 768px) {
  .nav {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 16px;
    box-shadow: var(--shadow);
  }

  .nav.open {
    display: flex;
  }

  .nav .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    padding-left: 16px;
  }

  .mobile-toggle {
    display: flex;
  }

  .welcome-grid,
  .service-card,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .service-card:nth-child(even) {
    direction: ltr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

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

  .rebate-cards {
    grid-template-columns: 1fr;
  }

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

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

  .hero h1 {
    font-size: 2rem;
  }
}