/* CSS Variables for consistent theming */
:root {
  --primary-color: #0f766e;
  --primary-light: #14b8a6;
  --primary-dark: #134e4a;
  --accent-color: #f59e0b;
  --accent-light: #fbbf24;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-accent: #f0fdfa;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 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-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --transition: all 0.2s ease-in-out;
}

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

body { 
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; 
  line-height: 1.6; 
  color: var(--text-primary);
  font-size: 16px;
  overflow-x: hidden;
}

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }

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

/* Navbar */
nav {
  position: fixed; 
  top: 0; 
  left: 0; 
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition);
}

.nav-container {
  display: flex; 
  justify-content: space-between; 
  align-items: center;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary-color);
}

.logo img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-primary);
  padding: 0.5rem 0;
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width 0.3s ease;
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-primary);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--bg-accent) 0%, var(--bg-secondary) 100%);
  position: relative;
  padding: 6rem 0 4rem;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-text h1 {
  color: var(--primary-dark);
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.hero-text p {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  color: var(--text-secondary);
}

.hero-image {
  position: relative;
}

.hero-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

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

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

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

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

/* Sections */
section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  color: var(--primary-dark);
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* About Section */
.about {
  background: var(--bg-secondary);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text {
  font-size: 1.125rem;
}

.about-features {
  display: grid;
  gap: 1.5rem;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem;
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
  flex-shrink: 0;
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.service-card {
  background: white;
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  text-align: center;
}

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

.service-icon {
  width: 64px;
  height: 64px;
  background: var(--bg-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: var(--primary-color);
  font-size: 1.5rem;
}

.service-card h3 {
  color: var(--primary-dark);
  margin-bottom: 1rem;
}

.service-card p {
  margin-bottom: 1.5rem;
}

.service-features {
  list-style: none;
  text-align: left;
  margin-bottom: 1.5rem;
}

.service-features li {
  padding: 0.25rem 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.service-features li::before {
  content: '✓';
  color: var(--primary-color);
  font-weight: bold;
  margin-right: 0.5rem;
}

/* Stats Section */
.stats {
  background: var(--primary-color);
  color: white;
}

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

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

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--accent-light);
}

.stat-label {
  font-size: 1rem;
  opacity: 0.9;
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 3rem;
}

.contact-info {
  background: var(--bg-secondary);
  padding: 2rem;
  border-radius: var(--radius-lg);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: white;
  border-radius: var(--radius-md);
}

.contact-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.contact-text h4 {
  margin-bottom: 0.25rem;
  color: var(--primary-dark);
}

.contact-text p {
  margin: 0;
  font-size: 0.875rem;
}

.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.map-container iframe {
  width: 100%;
  height: 400px;
  border: 0;
}

/* Footer */
footer {
  background: var(--primary-dark);
  color: white;
  text-align: center;
  padding: 2rem 0;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

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

  .container {
    padding: 0 1rem;
  }

  section {
    padding: 3rem 0;
  }
}

@media (max-width: 480px) {
  .services-grid {
    grid-template-columns: 1fr;
  }

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

  .hero {
    padding: 4rem 0 2rem;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Scroll behavior */
html {
  scroll-behavior: smooth;
}

/* Focus styles for accessibility */
*:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}