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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: #1d1d1f;
  background: #fff;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
nav {
  padding: 20px 0;
  border-bottom: 1px solid #e5e5e7;
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: #007AFF;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 30px;
  align-items: center;
  list-style: none;
}

.nav-links a {
  color: #1d1d1f;
  text-decoration: none;
  font-size: 14px;
}

.nav-buttons {
  display: flex;
  gap: 15px;
}

.btn {
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s;
}

.btn-primary {
  background: #007AFF;
  color: #fff;
  border: none;
}

.btn-primary:hover {
  background: #0051D5;
}

.btn-secondary {
  background: transparent;
  color: #007AFF;
  border: 1px solid #007AFF;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 80px 20px;
}

.hero h1 {
  font-size: 56px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.1;
}

.hero p {
  font-size: 21px;
  color: #6e6e73;
  max-width: 700px;
  margin: 0 auto 40px;
}

/* Features Section */
.features {
  padding: 80px 20px;
  background: #f5f5f7;
}

.features h2 {
  text-align: center;
  font-size: 40px;
  margin-bottom: 60px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
}

.feature-card {
  background: #fff;
  padding: 40px;
  border-radius: 16px;
  text-align: center;
}

.feature-card h3 {
  font-size: 24px;
  margin-bottom: 15px;
}

.feature-card p {
  color: #6e6e73;
  font-size: 16px;
}

/* Pricing Section */
.pricing {
  padding: 80px 20px;
}

.pricing h1 {
  text-align: center;
  font-size: 48px;
  margin-bottom: 60px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-card {
  background: #fff;
  border: 1px solid #e5e5e7;
  border-radius: 16px;
  padding: 40px 30px;
  text-align: center;
  position: relative;
}

.pricing-card.popular {
  border: 2px solid #007AFF;
  transform: scale(1.05);
}

.pricing-card h3 {
  font-size: 24px;
  margin-bottom: 10px;
}

.pricing-card .price {
  font-size: 48px;
  font-weight: 700;
  margin: 20px 0;
}

.pricing-card ul {
  list-style: none;
  margin: 30px 0;
  text-align: left;
}

.pricing-card li {
  padding: 10px 0;
  color: #6e6e73;
}

/* Support Page */
.support {
  padding: 80px 20px;
  max-width: 800px;
  margin: 0 auto;
}

.support h1 {
  font-size: 48px;
  margin-bottom: 40px;
  text-align: center;
}

.contact-form {
  background: #f5f5f7;
  padding: 40px;
  border-radius: 16px;
  margin-bottom: 60px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #d2d2d7;
  border-radius: 8px;
  font-size: 16px;
  font-family: inherit;
}

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

.developer-info {
  background: #fff;
  border: 1px solid #e5e5e7;
  padding: 40px;
  border-radius: 16px;
}

.developer-info h2 {
  font-size: 28px;
  margin-bottom: 20px;
}

.developer-info p {
  margin: 10px 0;
  font-size: 16px;
  color: #6e6e73;
}

/* Privacy Page */
.privacy {
  padding: 80px 20px;
  max-width: 900px;
  margin: 0 auto;
}

.privacy h1 {
  font-size: 48px;
  margin-bottom: 20px;
}

.privacy h2 {
  font-size: 28px;
  margin-top: 40px;
  margin-bottom: 15px;
}

.privacy p {
  margin-bottom: 15px;
  color: #6e6e73;
  line-height: 1.8;
}

.privacy ul {
  margin: 15px 0 15px 30px;
  color: #6e6e73;
}

.privacy li {
  margin-bottom: 10px;
}

/* Footer */
footer {
  background: #f5f5f7;
  padding: 40px 20px;
  text-align: center;
  border-top: 1px solid #e5e5e7;
}

footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links {
  display: flex;
  gap: 30px;
  list-style: none;
}

.footer-links a {
  color: #6e6e73;
  text-decoration: none;
  font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 36px;
  }
  
  .hero p {
    font-size: 18px;
  }
  
  .nav-links {
    display: none;
  }
  
  .pricing-card.popular {
    transform: scale(1);
  }
  
  footer .container {
    flex-direction: column;
    text-align: center;
  }
}