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

:root {
  --primary: #1a2332;
  --accent: #0d9488;
  --light: #f8f9fa;
  --border: #e0e0e0;
  --text: #333;
  --text-light: #666;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: white;
}

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

/* Navigation */
.navbar {
  background: white;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 20px;
}

.logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--primary);
}

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

.nav-links a {
  text-decoration: none;
  color: var(--text);
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--accent);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, #2d3f5f 100%);
  color: white;
  padding: 6rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0.95;
}

/* Buttons */
.cta-button, .btn-primary, .btn-secondary {
  display: inline-block;
  padding: 12px 32px;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
}

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

.cta-button:hover, .btn-primary:hover {
  background: #0a7a70;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.3);
}

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

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

/* How It Works */
.how-it-works {
  padding: 4rem 0;
  background: var(--light);
}

.how-it-works h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: var(--primary);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.step {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.step-number {
  width: 50px;
  height: 50px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: bold;
  margin: 0 auto 1rem;
}

.step h3 {
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.step p {
  color: var(--text-light);
}

/* Features */
.features {
  padding: 4rem 0;
}

.features h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: var(--primary);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.feature-card {
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: all 0.3s;
}

.feature-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.1);
  transform: translateY(-4px);
}

.feature-card h3 {
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--text-light);
}

/* Pricing */
.pricing {
  padding: 4rem 0;
  background: var(--light);
}

.pricing h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: var(--primary);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.pricing-card {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  text-align: center;
  position: relative;
  transition: all 0.3s;
}

.pricing-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  transform: translateY(-4px);
}

.pricing-card.featured {
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(13, 148, 136, 0.2);
  transform: scale(1.05);
}

.badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: white;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.pricing-card h3 {
  color: var(--primary);
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.price {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
  font-weight: bold;
}

.price span {
  font-size: 1rem;
  color: var(--text-light);
}

.features-list {
  list-style: none;
  margin-bottom: 1.5rem;
  text-align: left;
}

.features-list li {
  padding: 0.5rem 0;
  color: var(--text-light);
  border-bottom: 1px solid var(--border);
}

.features-list li:last-child {
  border-bottom: none;
}

/* Signup Section */
.signup {
  padding: 4rem 0;
  background: var(--primary);
  color: white;
  text-align: center;
}

.signup h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.signup p {
  margin-bottom: 2rem;
  opacity: 0.9;
}

.signup-form {
  max-width: 500px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.signup-form input {
  padding: 12px 16px;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
}

.signup-form input::placeholder {
  color: #999;
}

.message {
  margin-top: 1rem;
  font-size: 0.9rem;
}

.message.success {
  color: #4ade80;
}

.message.error {
  color: #f87171;
}

/* Footer */
.footer {
  background: var(--primary);
  color: white;
  padding: 2rem 0;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer p {
  margin: 0.5rem 0;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    gap: 1rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .how-it-works h2, .features h2, .pricing h2 {
    font-size: 1.75rem;
  }

  .pricing-card.featured {
    transform: scale(1);
  }

  .signup-form {
    padding: 0 1rem;
  }
}
