:root {
  --primary-color: #2b6cb0;
  --secondary-color: #ebf8ff;
  --text-color: #2d3748;
  --text-light: #4a5568;
  --bg-color: #f7fafc;
  --white: #ffffff;
  --accent-color: #4299e1;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

/* Header & Navigation */
header {
  background-color: var(--white);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

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

nav a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: color 0.2s;
}

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

/* Layout */
main {
  min-height: 80vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

/* Typography */
h1, h2, h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  line-height: 1.2;
}

h1 {
  font-size: 3rem;
  font-weight: 800;
}

h2 {
  font-size: 2.25rem;
  margin-bottom: 1.5rem;
}

p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  font-size: 1.125rem;
}

/* Buttons */
.btn {
  display: inline-block;
  background-color: var(--primary-color);
  color: var(--white);
  padding: 0.75rem 1.5rem;
  border-radius: 0.375rem;
  text-decoration: none;
  font-weight: 600;
  transition: background-color 0.2s, transform 0.1s;
  border: none;
  cursor: pointer;
}

.btn:hover {
  background-color: var(--accent-color);
  transform: translateY(-1px);
}

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

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

/* Hero Section */
.hero {
  background-color: var(--secondary-color);
  padding: 6rem 2rem;
  text-align: center;
}

.hero h1 {
  max-width: 800px;
  margin: 0 auto 1.5rem;
}

.hero p {
  max-width: 600px;
  margin: 0 auto 2rem;
  font-size: 1.25rem;
}

.hero-image {
  width: 50%;
  max-width: 100%;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  margin-top: 3rem;
}

/* Cards / Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.card {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  transition: transform 0.2s;
}

.card:hover {
  transform: translateY(-5px);
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Forms */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background: var(--white);
  padding: 2rem;
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #e2e8f0;
  border-radius: 0.375rem;
  font-family: inherit;
  font-size: 1rem;
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

/* Footer */
footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 3rem 2rem;
  text-align: center;
  margin-top: 4rem;
}

footer p {
  color: var(--secondary-color);
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    gap: 1rem;
  }
  
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }
  
  .hero-image {
    width: 90%;
  }
}