/* Solar Installation - Modern New-Age Design */
:root {
  --primary: #0d9488;
  --primary-dark: #0f766e;
  --primary-light: #14b8a6;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --dark: #0f172a;
  --gray-900: #1e293b;
  --gray-700: #334155;
  --gray-500: #64748b;
  --gray-300: #cbd5e1;
  --gray-100: #f1f5f9;
  --white: #ffffff;
  --success: #10b981;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --radius: 12px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--gray-900);
  background: var(--white);
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--dark);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin-bottom: 1rem; }
h3 { font-size: 1.4rem; }
p { margin-bottom: 1rem; color: var(--gray-700); }

/* Header */
.header {
  background: var(--white);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--dark);
}

.logo svg {
  width: 48px;
  height: 48px;
}

.logo span {
  color: var(--primary);
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--gray-700);
}

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

.nav-cta {
  background: var(--primary);
  color: var(--white) !important;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
}

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

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  margin: 5px 0;
  transition: var(--transition);
}

/* Hero */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.75), rgba(13, 148, 136, 0.6)),
              url('https://images.unsplash.com/photo-1509391366360-2e959784a276?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
  color: var(--white);
  padding: 80px 0;
}

.hero-content {
  max-width: 650px;
}

.hero h1 {
  color: var(--white);
  margin-bottom: 1.2rem;
}

.hero p {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 2rem;
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: var(--dark);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

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

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

.btn-teal:hover {
  background: var(--primary-dark);
}

/* Sections */
.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--gray-100);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px;
}

.section-header p {
  font-size: 1.1rem;
}

.badge {
  display: inline-block;
  background: rgba(13, 148, 136, 0.12);
  color: var(--primary-dark);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 12px;
}

/* Cards */
.grid {
  display: grid;
  gap: 28px;
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.card-img {
  height: 200px;
  object-fit: cover;
  width: 100%;
}

.card-body {
  padding: 24px;
}

.card-body h3 {
  margin-bottom: 10px;
}

.card-body p {
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.card-link {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.card-link:hover {
  gap: 10px;
}

/* Features / Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  text-align: center;
}

.stat-item h3 {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 4px;
}

.stat-item p {
  color: var(--gray-500);
  font-weight: 500;
}

/* Service detail */
.service-hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: var(--white);
  padding: 60px 0;
}

.service-hero h1 {
  color: var(--white);
}

.service-content {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 40px;
  align-items: start;
}

.service-sidebar {
  background: var(--gray-100);
  padding: 28px;
  border-radius: var(--radius);
  position: sticky;
  top: 100px;
}

.service-sidebar h3 {
  margin-bottom: 16px;
}

.service-sidebar ul li {
  padding: 10px 0;
  border-bottom: 1px solid var(--gray-300);
  display: flex;
  align-items: center;
  gap: 10px;
}

.service-sidebar ul li:last-child {
  border-bottom: none;
}

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

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--gray-900);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* Contact info */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-info-item .icon {
  width: 48px;
  height: 48px;
  background: rgba(13, 148, 136, 0.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

/* Blog */
.blog-content {
  max-width: 800px;
  margin: 0 auto;
}

.blog-content h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.blog-content ul,
.blog-content ol {
  margin: 1rem 0 1.5rem 1.5rem;
}

.blog-content li {
  margin-bottom: 0.6rem;
  color: var(--gray-700);
}

.blog-content li::marker {
  color: var(--primary);
}

/* Legal pages */
.legal-content {
  max-width: 860px;
  margin: 0 auto;
}

.legal-content h2 {
  margin-top: 2rem;
  font-size: 1.4rem;
}

.legal-content p,
.legal-content li {
  margin-bottom: 0.8rem;
}

.legal-content ul {
  margin-left: 1.5rem;
  margin-bottom: 1.2rem;
}

/* Footer */
.footer {
  background: var(--dark);
  color: var(--gray-300);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--gray-500);
  margin-top: 12px;
  font-size: 0.95rem;
}

.footer h4 {
  color: var(--white);
  margin-bottom: 18px;
  font-size: 1.05rem;
}

.footer ul li {
  margin-bottom: 10px;
}

.footer a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  border-top: 1px solid var(--gray-700);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.9rem;
}

.footer-legal a {
  margin-left: 20px;
}

/* Utility */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }

/* Responsive */
@media (max-width: 900px) {
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--shadow-lg);
    gap: 16px;
  }

  .nav.open {
    display: flex;
  }

  .mobile-toggle {
    display: block;
  }

  .service-content,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .service-sidebar {
    position: static;
  }
}

@media (max-width: 600px) {
  .hero {
    min-height: 70vh;
    padding: 60px 0;
  }

  .section {
    padding: 50px 0;
  }
}