:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --bg-color: #f8fafc;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-links a.login {
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

.btn {
  display: inline-block;
  background-color: var(--primary-color);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  transition: background-color 0.2s, transform 0.1s;
}

.btn:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  background-color: rgba(37, 99, 235, 0.05);
  transform: none;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 6rem 0 4rem;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--text-main);
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* Features Section */
.features {
  padding: 5rem 0;
  background-color: var(--card-bg);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-title {
  text-align: center;
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 3rem;
}

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

.feature-card {
  padding: 2rem;
  background-color: var(--bg-color);
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.badge-new {
  display: inline-block;
  background: var(--primary-color);
  color: white;
  font-size: 0.65rem;
  font-weight: 800;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  vertical-align: middle;
}

.feature-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

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

/* How It Works */
.how-it-works {
  padding: 5rem 0;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
}

.step-content h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

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

/* CTA Section */
.cta-section {
  background-color: var(--primary-color);
  color: white;
  text-align: center;
  padding: 5rem 0;
}

.cta-section h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.cta-section p {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

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

.cta-section .btn:hover {
  background-color: var(--bg-color);
}

/* Footer */
.footer {
  padding: 2rem 0;
  text-align: center;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
}

.footer-links {
  margin-top: 1rem;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

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

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero-actions {
    flex-direction: column;
    padding: 0 1rem;
  }
  
  .step {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
    align-items: center;
  }
}