:root {
  --color-primary: #0D3B66;
  --color-secondary: #7F9DB1;
  --color-accent: #B4D6E3;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-background: #ffffff;
  --color-background-alt: #f8f9fa;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;
  
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  color: var(--color-text);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

/* Typography */
h1, h2, h3 {
  color: var(--color-primary);
  line-height: 1.2;
}

h1 {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-light);
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--color-background);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.nav-links a {
  color: var(--color-text);
  text-decoration: none;
  transition: var(--transition);
}

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

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

.menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: #333;
  display: block;
}

/* Responsive styles */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 60px;
    right: 0;
    flex-direction: column;
    background-color: white;
    width: 100%;
    padding: 20px;
    display: none; /* Hide by default */
  }

  .nav-links.active {
    display: flex;
  }
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Hero Section */
.hero {
  padding: calc(var(--spacing-xl) + 60px) 0 var(--spacing-xl);
  background: linear-gradient(to bottom, var(--color-accent), var(--color-background));
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.hero-content {
  max-width: 500px;
}

.hero-image img {
  width: 100%;
  border-radius: var(--border-radius);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* About Section */
.about {
  padding: var(--spacing-xl) 0;
  background: var(--color-background-alt);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.about-features {
  list-style: none;
  margin-top: var(--spacing-md);
}

.about-features li {
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-md);
  position: relative;
}

.about-features li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

.about-image img {
  width: 100%;
  border-radius: var(--border-radius);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Features Section */
.features {
  padding: var(--spacing-xl) 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.feature-card {
  padding: var(--spacing-md);
  background: var(--color-background);
  border-radius: var(--border-radius);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

/* Testimonials Section */
.testimonials {
  padding: var(--spacing-xl) 0;
  background: var(--color-background-alt);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.testimonial-card {
  padding: var(--spacing-md);
  background: var(--color-background);
  border-radius: var(--border-radius);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.testimonial-author {
  font-weight: 600;
  color: var(--color-primary);
  margin-top: var(--spacing-sm);
}

.testimonial-company {
  color: var(--color-secondary);
  font-size: 0.9rem;
}

/* Contact Section */
.contact {
  padding: var(--spacing-xl) 0;
}

.contact-content {
  max-width: 600px;
  margin: 0 auto;
}

.contact-form {
  background: var(--color-background);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
  font-weight: 500;
}

input,
textarea {
  width: 100%;
  padding: var(--spacing-sm);
  border: 1px solid var(--color-secondary);
  border-radius: var(--border-radius);
  font-family: inherit;
  transition: var(--transition);
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(13, 59, 102, 0.1);
}

textarea {
  height: 150px;
  resize: vertical;
}

/* Footer */
.footer {
  padding: var(--spacing-lg) 0 var(--spacing-md);
  background: var(--color-primary);
  color: var(--color-background);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
}

.footer-links {
  display: flex;
  gap: var(--spacing-md);
}

.footer-links a {
  color: var(--color-background);
  text-decoration: none;
  transition: var(--transition);
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Buttons */
.btn-primary {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-primary);
  color: var(--color-background);
  text-decoration: none;
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

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

/* Responsive Design */
@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--color-background);
    padding: 80px var(--spacing-md);
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
  }

  .nav-links.active {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .hero .container,
  .about-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about-features {
    text-align: left;
  }

  .footer-content {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  .footer-links {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .contact-form {
    padding: var(--spacing-md);
  }
}