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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
}

/* Header & Navigation */
header {
  background: linear-gradient(135deg, #0D47A1 0%, #1565C0 100%);
  color: white;
  padding: 1rem 0;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

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

.navbar h1 {
  color: white;
  font-size: 1.8rem;
}

nav {
  display: flex;
  gap: 2rem;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.3s;
}

nav a:hover {
  opacity: 0.8;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #1565C0 0%, #0097A7 100%);
  color: white;
  padding: 4rem 2rem;
  text-align: center;
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto;
}

/* Content Section */
.content {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 2rem;
}

.content h2 {
  color: #0D47A1;
  margin-bottom: 1.5rem;
  font-size: 2rem;
}

.content h3 {
  color: #1565C0;
  margin-top: 1.5rem;
  margin-bottom: 1rem;
}

.content ul {
  margin-left: 2rem;
  margin-bottom: 1.5rem;
}

.content ul li {
  margin-bottom: 0.8rem;
}

.content p {
  margin-bottom: 1rem;
  text-align: justify;
}

/* Features Section */
.features {
  background: #f5f5f5;
  padding: 3rem 2rem;
}

.features h2 {
  text-align: center;
  color: #0D47A1;
  margin-bottom: 2rem;
}

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

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 12px rgba(13, 71, 161, 0.2);
}

.feature-card h3 {
  color: #1565C0;
  margin-bottom: 1rem;
}

/* App Cards */
.app-card {
  background: white;
  border-left: 5px solid #0D47A1;
  padding: 2rem;
  margin-bottom: 2rem;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.app-card h3 {
  color: #0D47A1;
  margin-bottom: 1rem;
}

.app-card p {
  color: #555;
  margin-bottom: 1rem;
}

/* Buttons */
button, .submit-btn, .cta-button {
  background: linear-gradient(135deg, #0D47A1 0%, #1565C0 100%);
  color: white;
  padding: 0.7rem 1.5rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.3s;
}

button:hover, .submit-btn:hover, .cta-button:hover {
  background: linear-gradient(135deg, #0097A7 0%, #00838F 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(13, 71, 161, 0.3);
}

.download-btn {
  background: linear-gradient(135deg, #1565C0 0%, #0097A7 100%);
}

/* CTA Section */
.cta {
  background: #f5f5f5;
  padding: 3rem 2rem;
  text-align: center;
}

.cta h2 {
  color: #0D47A1;
  margin-bottom: 1rem;
}

.cta button {
  margin: 0.5rem;
}

/* Contact Form */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin: 2rem 0;
}

.contact-info, .contact-form {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.contact-info h3, .contact-form h3 {
  color: #0D47A1;
  margin-bottom: 1.5rem;
}

.contact-info p {
  margin-bottom: 1rem;
}

.contact-form input, .contact-form textarea {
  width: 100%;
  padding: 0.8rem;
  margin-bottom: 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-family: inherit;
}

.contact-form input:focus, .contact-form textarea:focus {
  outline: none;
  border-color: #0D47A1;
  box-shadow: 0 0 5px rgba(13, 71, 161, 0.2);
}

/* Footer */
footer {
  background: linear-gradient(135deg, #0D47A1 0%, #1565C0 100%);
  color: white;
  text-align: center;
  padding: 2rem;
  margin-top: 3rem;
}

.footer-links {
  margin-top: 1rem;
}

.footer-links a {
  color: #B3E5FC;
  text-decoration: none;
  margin: 0 1rem;
}

.footer-links a:hover {
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 1rem;
  }

  nav {
    flex-direction: column;
    gap: 0.5rem;
  }

  .hero h2 {
    font-size: 1.8rem;
  }

  .contact-container {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }
}