:root {
  --primary-color: #1a237e;
  --secondary-color: #5c6bc0;
  --background-color: #f5f5f5;
  --footer-bg-color: #0d47a1;
  --button-color: #1a237e;
  --section-bg-1: #e8eaf6;
  --section-bg-2: #d1c4e9;
  --section-bg-3: #b3e5fc;
  --text-color: #212121;
  --text-light: #f5f5f5;
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Rajdhani', 'Inter', sans-serif;
  --border-radius: 8px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Rajdhani:wght@500;600;700&display=swap');

body {
  font-family: var(--font-main);
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.7;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-top: 0;
  margin-bottom: 1rem;
  line-height: 1.2;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: 1.5rem;
  max-width: 65ch;
}

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

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

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

.section-bg-1 {
  background-color: var(--section-bg-1);
}

.section-bg-2 {
  background-color: var(--section-bg-2);
}

.section-bg-3 {
  background-color: var(--section-bg-3);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-sm);
}

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

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

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

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

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

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

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

.card-body {
  padding: 1.5rem;
}

/* Navigation */
.navbar {
  background-color: white;
  box-shadow: var(--shadow-sm);
  padding: 1rem 0;
}

.nav-link {
  padding: 0.5rem 1rem;
  font-weight: 500;
  color: var(--text-color);
}

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

/* Footer */
.footer {
  background-color: var(--footer-bg-color);
  color: var(--text-light);
  padding: 3rem 0;
}

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

.footer a:hover {
  color: white;
  opacity: 0.9;
}

/* Special Effects */
.highlight-box {
  position: relative;
  padding: 2rem;
  border-radius: var(--border-radius);
  overflow: hidden;
}

.highlight-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fadeIn {
  animation: fadeIn 0.6s ease-out forwards;
}

/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .section {
    padding: 3rem 0;
  }
}