:root {
  --primary-color: #007bff; 
  --secondary-color: #6c757d;
  --accent-color: #28a745; 
  --light-bg: #f8f9fa; 
  --dark-bg: #343a40;
  --text-color: #343a40; 
  --light-text-color: #e9ecef;
  --border-color: #dee2e6;
  --font-family-primary: 'Poppins', sans-serif;
  --header-height: 80px;
}

/* Base Styles */
body {
  font-family: var(--font-family-primary);
  margin: 0;
  background-color: var(--light-bg);
  color: var(--text-color);
  line-height: 1.6;
  overflow-x: hidden; 
  scroll-behavior: smooth;
}

h1, h2, h3 {
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

p {
  font-weight: 300;
}

a {
  text-decoration: none;
  color: var(--primary-color);
  transition: color 0.3s ease;
}

a:hover {
  color: var(--accent-color);
}

/* Utility Classes */
.btn-primary, .btn-signup {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  border-radius: 50px;
  font-weight: 600;
  transition: all 0.3s ease;
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  border: 2px solid var(--primary-color);
}

.btn-primary:hover {
  background-color: #0056b3; 
  border-color: #0056b3;
  transform: translateY(-2px);
}

.btn-signup {
  background-color: var(--accent-color);
  color: white;
  border: 2px solid var(--accent-color);
}

.btn-signup:hover {
  background-color: #218838; 
  border-color: #218838;
  transform: translateY(-2px);
}

/* Header/ Navbar */
.navbar {
  background-color: white;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  position: fixed; 
  top: 0;
  width: 100%;
  z-index: 1000;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  transition: transform 0.3s ease-out, box-shadow 0.3s ease-out; 
}

.navbar.scrolled {
  box-shadow: 0 5px 15px rgba(0,0,0,0.1); 
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.navbar .logo {
  width: 60px;
  height: auto;
}

.navbar .nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
  margin: 0;
  padding: 0;
}

.navbar .nav-links li a:not(.btn-signup) {
  color: var(--text-color);
  font-weight: 600;
  position: relative;
  padding-bottom: 5px;
}

.navbar .nav-links li a:not(.btn-signup).active,
.navbar .nav-links li a:not(.btn-signup):hover {
  color: var(--primary-color);
}

.navbar .nav-links li a:not(.btn-signup)::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

.navbar .nav-links li a:not(.btn-signup):hover::after,
.navbar .nav-links li a:not(.btn-signup).active::after {
  width: 100%;
}

.navbar .nav-links .btn-signup {
  margin-left: 1rem;
  padding-top: 0.8rem;
  padding-bottom: 0.8rem;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
  color: var(--primary-color);
}

/* Section base styles */
.section {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 4rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Common section heading style */
.section h2 {
  font-size: 2.8rem;
  margin-bottom: 3rem;
  position: relative;
  display: inline-block;
  color: var(--primary-color);
}

.section h2::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -10px;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: var(--accent-color);
  border-radius: 2px;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(135deg, #e0f7fa, #bbdefb);
  flex-direction: row;
  flex-wrap: wrap;
  gap: 3rem;
  align-items: center;
  justify-content: center;
}

.hero-content {
  max-width: 600px;
  text-align: left;
}

.hero-content h1 {
  font-size: 3.5rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.05);
}

.hero-content p {
  font-size: 1.3rem;
  margin-bottom: 2.5rem;
  color: var(--secondary-color);
}

.hero-image-wrapper {
  max-width: 500px;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: rgba(255,255,255,0.8);
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  padding: 1rem;
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: 15px;
}

/* Services Section */
.services-section {
  background-color: white;
}

.services-section h2 {
  margin-bottom: 3rem;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  width: 100%;
}

.service-card {
  background-color: #f0fcff;
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.service-card img {
  width: 90px;
  height: auto;
  margin-bottom: 1.5rem;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
}

.service-card h3 {
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
  color: var(--text-color);
}

.service-card p {
  font-size: 1rem;
  color: var(--secondary-color);
}

/* About Section */
.about-section {
  background-color: #e6f7ff;
  padding: 5rem 1.5rem;
  max-width: 100%;
}

.about-section p {
  font-size: 1.25rem;
  max-width: 900px;
  margin-bottom: 2.5rem;
  line-height: 1.8;
  color: var(--secondary-color);
}

.about-section p strong {
  color: var(--primary-color);
  font-weight: 600;
}

/* Contact Section */
.contact-section {
  background-color: var(--light-bg);
}

.contact-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 4rem;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  align-items: center;
  justify-content: center;
  text-align: left;
}

.contact-text {
  flex: 1;
  min-width: 320px;
  max-width: 500px;
}

.contact-text h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.contact-text p {
  font-size: 1.1rem;
  margin-bottom: 1.8rem;
  color: var(--secondary-color);
}

.contact-details p {
  margin-bottom: 1rem;
  font-size: 1rem;
  color: var(--text-color);
}

.contact-details strong {
  color: var(--primary-color);
}

.contact-details a {
  font-weight: 500;
}

.contact-map {
  flex: 1;
  min-width: 320px;
  height: 400px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
  border: 1px solid var(--border-color);
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* Footer */
.footer {
  background-color: var(--dark-bg);
  color: var(--light-text-color);
  text-align: center;
  padding: 1.5rem 1rem;
  font-size: 0.9rem;
}

/* Animations */
.reveal-item {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 992px) {
  .hero-content h1 {
    font-size: 2.8rem;
  }
  .hero-content p {
    font-size: 1.1rem;
  }
  .section h2 {
    font-size: 2.2rem;
  }
  .contact-text h2 {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .navbar-container {
    padding: 0 1rem;
  }
  .navbar .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: white;
    box-shadow: 0 5px 10px rgba(0,0,0,0.05);
    padding: 1rem 0;
    z-index: 999;
    align-items: center;
  }

  .navbar .nav-links.active {
    display: flex;
  }

  .navbar .nav-links li {
    margin: 0.5rem 0;
  }

  .navbar .nav-links a {
    padding: 0.5rem 0;
    width: 100%;
    text-align: center;
  }

  /* Adjust btn-signup padding for mobile menu */
  .navbar .nav-links .btn-signup {
      padding: 0.8rem 1.8rem;
      margin-left: 0;
      margin-top: 1rem;
  }

  .menu-toggle {
    display: block;
  }

  .hero-section {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
  }

  .hero-content {
    text-align: center;
  }

  .hero-content h1 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
  }
  .hero-content p {
    font-size: 1rem;
    margin-bottom: 2rem;
  }

  .section {
    padding: 3rem 1rem;
  }

  .section h2 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    width: 90%;
    margin: 0 auto;
  }

  .about-section p {
    font-size: 1rem;
  }

  .contact-wrapper {
    flex-direction: column;
    text-align: center;
    gap: 2.5rem;
  }

  .contact-text {
    min-width: unset;
    max-width: 100%;
  }

  .contact-details {
    text-align: center;
  }

  .contact-map {
    height: 300px;
    min-width: unset;
    width: 90%;
  }
}

@media (max-width: 480px) {
  .navbar .logo {
    width: 50px;
  }
  .hero-content h1 {
    font-size: 1.8rem;
  }
  .hero-content p {
    font-size: 0.9rem;
  }
  .btn-primary, .btn-signup {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
  }
  .section h2 {
    font-size: 1.5rem;
  }
  .service-card h3 {
    font-size: 1.2rem;
  }
  .service-card p {
    font-size: 0.9rem;
  }
  .contact-text h2 {
    font-size: 1.8rem;
  }
  .contact-text p, .contact-details p {
    font-size: 0.9rem;
  }
  .contact-map {
    height: 250px;
  }
}