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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

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

/* Header Styles */
header {
  background: white;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.2rem;
  color: #333;
}

.logo svg {
  color: #00d4aa;
}

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

.nav-links a {
  color: #333;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: #00d4aa;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.currency, .cart {
  color: #666;
  font-size: 0.9rem;
}

.get-trezor-btn {
  background: #00d4aa;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 25px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.get-trezor-btn:hover {
  background: #00b894;
  transform: translateY(-2px);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 80px 0;
  text-align: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  background: #00d4aa;
  color: white;
  border: none;
  padding: 15px 30px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background: #00b894;
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: #333;
  border: 2px solid #ddd;
  padding: 13px 30px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  border-color: #00d4aa;
  color: #00d4aa;
}

.btn-more {
  background: transparent;
  color: #666;
  border: none;
  padding: 15px 20px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.3s ease;
}

.btn-more:hover {
  color: #00d4aa;
}

/* How it works section */
.how-it-works {
  padding: 80px 0;
  background: white;
}

.how-it-works h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 60px;
  color: #333;
  font-weight: 700;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.step-card {
  background: #f8f9fa;
  padding: 30px;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.step-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.step-number {
  background: #00d4aa;
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  margin-bottom: 20px;
}

.step-card h3 {
  font-size: 1.3rem;
  margin-bottom: 15px;
  color: #333;
  font-weight: 600;
}

.step-card p {
  color: #666;
  line-height: 1.6;
}

/* Expert guidance section */
.expert-guidance {
  padding: 80px 0;
  background: #f8f9fa;
}

.expert-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.expert-text h2 {
  font-size: 2.5rem;
  margin-bottom: 40px;
  color: #333;
  font-weight: 700;
}

.expert-features h3 {
  font-size: 1.8rem;
  margin-bottom: 30px;
  color: #333;
  font-weight: 600;
}

.feature-list {
  list-style: none;
  margin-bottom: 30px;
}

.feature-list li {
  padding: 10px 0;
  color: #666;
  position: relative;
  padding-left: 25px;
}

.feature-list li::before {
  content: "✓";
  color: #00d4aa;
  font-weight: bold;
  position: absolute;
  left: 0;
}

.btn-expert {
  background: #00d4aa;
  color: white;
  border: none;
  padding: 15px 30px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-bottom: 15px;
}

.btn-expert:hover {
  background: #00b894;
  transform: translateY(-2px);
}

.expert-note {
  color: #666;
  font-size: 0.9rem;
  font-style: italic;
}

.expert-image img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Content Section */
.content-section {
  padding: 80px 0;
  background: white;
}

.content-wrapper {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  align-items: start;
}

.content-image {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.content-image:hover {
  transform: scale(1.02);
}

.content-text h1 {
  font-size: 2.5rem;
  color: #333;
  margin-bottom: 30px;
  font-weight: 700;
  line-height: 1.2;
}

.content-text h2 {
  font-size: 1.8rem;
  color: #333;
  margin: 40px 0 20px 0;
  font-weight: 600;
}

.content-text h3 {
  font-size: 1.4rem;
  color: #333;
  margin: 30px 0 15px 0;
  font-weight: 600;
}

.content-text p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #666;
  margin-bottom: 20px;
  text-align: justify;
}

/* Footer */
footer {
  background: #333;
  color: white;
  text-align: center;
  padding: 30px 0;
}

footer p {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    height: auto;
    padding: 20px;
  }
  
  .nav-links {
    margin: 20px 0;
    gap: 15px;
  }
  
  .nav-actions {
    gap: 15px;
  }
  
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .cta-buttons button {
    width: 100%;
    max-width: 300px;
  }
  
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .expert-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .content-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .content-text h1 {
    font-size: 2rem;
  }
  
  .expert-text h2,
  .how-it-works h2 {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }
  
  .hero {
    padding: 50px 0;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .content-text h1 {
    font-size: 1.8rem;
  }
  
  .content-text h2 {
    font-size: 1.5rem;
  }
  
  .content-text h3 {
    font-size: 1.3rem;
  }
}