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

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

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid #eee;
}

.nav-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2rem;
}

.logo-link {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  color: #333;
}

.logo-link:hover {
  opacity: 0.7;
}

.page-info {
  text-align: right;
}

.page-title {
  font-size: 2rem;
  font-weight: 300;
  margin-bottom: 1rem;
}

.page-subtitle {
  color: #666;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.content {
  max-width: 700px;
  margin: 0 auto;
}

h2 {
  font-size: 1.3rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 3rem 0 1rem 0;
  border-bottom: 1px solid #eee;
  padding-bottom: 0.5rem;
}

h3 {
  font-size: 1.1rem;
  font-weight: 500;
  margin: 2rem 0 1rem 0;
}

p {
  margin-bottom: 1.5rem;
  color: #555;
}

ul, ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
  color: #555;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.9rem;
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid #eee;
}

th {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.8rem;
}

.section {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid #eee;
}

.section:last-child {
  border-bottom: none;
}

.workout-box {
  background: #f9f9f9;
  padding: 1.5rem;
  margin: 1.5rem 0;
  border-left: 3px solid #333;
}

.zona {
  background: #f9f9f9;
  padding: 1rem;
  margin: 1rem 0;
  border-left: 2px solid #666;
}

.semana {
  background: #f5f5f5;
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.intro {
  background: #f9f9f9;
  padding: 2rem;
  margin-bottom: 3rem;
  text-align: center;
}

.intro p {
  margin-bottom: 0.5rem;
}

a {
  color: #333;
  text-decoration: underline;
}

a:hover {
  opacity: 0.7;
}

@media (max-width: 600px) {
  .container {
    padding: 1rem;
  }
  
  .page-title {
    font-size: 1.5rem;
  }
  
  h2 {
    font-size: 1.1rem;
  }
  
  table {
    font-size: 0.8rem;
  }
  
  th, td {
    padding: 0.5rem;
  }
}
footer {
  text-align: center;
  padding: 2rem 0;
  margin-top: 4rem;
  border-top: 1px solid #eee;
  color: #666;
  font-size: 0.85rem;
}