:root {
  --primary-color: #4A90E2;
  --secondary-color: #2C3E50;
  --accent-color: #E74C3C;
  --bg-color: #F8F9FA;
  --text-color: #333;
}

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

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

/* Header Styles */
header {
  background: white;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

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

.logo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

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

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

.btn-login {
  background: var(--primary-color);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 4px;
}

/* Hero Section */
.hero {
  margin-top: 70px;
  background: linear-gradient(135deg, var(--primary-color) 0%, #2980B9 100%);
  color: white;
  padding: 4rem 2rem;
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.search-box {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  display: flex;
  gap: 1rem;
  max-width: 800px;
  margin: 2rem auto;
}

.search-box input {
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  flex: 1;
}

.search-btn {
  background: var(--accent-color);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
}

/* Features Section */
.features {
  padding: 4rem 2rem;
  background: var(--bg-color);
}

.features h2 {
  text-align: center;
  margin-bottom: 3rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.feature {
  text-align: center;
  padding: 2rem;
  background: white;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1rem;
  background: var(--primary-color);
  border-radius: 50%;
}

/* How It Works Section */
.how-it-works {
  padding: 4rem 2rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.step {
  text-align: center;
  padding: 2rem;
}

.step-number {
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-weight: 600;
}

/* Partners Section */
.partners {
  padding: 4rem 2rem;
  background: var(--bg-color);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.partner-logo {
  height: 60px;
  background: #ddd;
  border-radius: 4px;
}

/* CTA Section */
.cta {
  padding: 4rem 2rem;
  text-align: center;
  background: var(--primary-color);
  color: white;
}

.btn-primary {
  display: inline-block;
  background: var(--accent-color);
  color: white;
  text-decoration: none;
  padding: 1rem 2rem;
  border-radius: 4px;
  margin-top: 2rem;
}

/* Footer */
footer {
  background: var(--secondary-color);
  color: white;
  padding: 4rem 2rem 2rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.footer-section h4 {
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section a {
  color: #ddd;
  text-decoration: none;
  line-height: 2;
}

.footer-bottom {
  text-align: center;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}

/* Animations */
.plane-animation {
  position: absolute;
  width: 100px;
  height: 100px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M21,16V14L13,9V3.5C13,2.67 12.33,2 11.5,2C10.67,2 10,2.67 10,3.5V9L2,14V16L10,13.5V19L8,20.5V22L11.5,21L15,22V20.5L13,19V13.5L21,16Z'/%3E%3C/svg%3E") no-repeat center;
  animation: flyPlane 20s linear infinite;
}

@keyframes flyPlane {
  0% {
    transform: translate(-100%, 100%) rotate(45deg);
  }
  100% {
    transform: translate(200%, -100%) rotate(45deg);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  nav ul {
    display: none;
  }
  
  .search-box {
    flex-direction: column;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
}