body {
  margin: 0;
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f0f0f0;
}
  
  .harmonica {
    display: flex;
    border: 2px solid #333;
    background-color: #eee;
    padding: 5px;
    align-items: flex-start;
  }
  
  .labels {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    margin-right: 5px;
  }
  
  .label {
    height: 30px;
    line-height: 30px;
    text-align: right;
    margin-bottom: 5px;
    transform: translateY(50%);
  }
  
  .hole {
    display: flex;
    flex-direction: column;
    align-items: center;
    border-right: 1px solid #999;
    padding: 5px;
  }

  .hole-label {
    margin-top: 5px;
    font-weight: bold;
    font-size: 14px;
  }
  
  
  .hole:last-child {
    border-right: none;
  }
  
  .note {
    width: 100%;
    height: 30px;
    font-weight: bold;
    text-align: center;
    line-height: 30px;
    margin-bottom: 5px;
    border-radius: 4px;
  }
  
  .note.blow-slide {
    background-color: #ff9999;
  }
  
  .note.blow {
    background-color: #99ccff;
  }
  
  .note.draw {
    background-color: #99ff99;
  }
  
  .note.draw-slide {
    background-color: #ffcc99;
  }
  
  .note.highlighted {
    color: white;
    background-color: #333;
  }
  
  
  .note:last-child {
    margin-bottom: 0;
  }
  

  .scale-selector {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
  }
  
  .scale-selector label {
    margin-right: 10px;
  }
  
  
  select#scaleSelector {
    font-size: 18px;
  }




/* Navbar */
header {
  width: 100%;
  background-color: #333;
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  height: 60px;
}


.logo {
  color: #fff;
  text-decoration: none;
  font-size: 24px;
}

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

.nav-links li {
  margin-left: 20px;
}

.nav-links a {
  text-decoration: none;
  color: #fff;
  font-size: 18px;
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  height: 18px;
  width: 25px;
  cursor: pointer;
  background: transparent;
  border: none;
}

.bar {
  height: 3px;
  width: 100%;
  background-color: #fff;
}


/* Responsive styles */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    flex-direction: column;
    background-color: #333;
    width: 100%;
    padding: 20px 0;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links li {
    margin-left: 0;
    margin-bottom: 10px;
  }

  .hamburger {
    display: flex;
  }

  .navbar a {
    float: none;
    display: block;
    text-align: left;
  }
}

.content-container {
  max-width: 800px;
  margin: 20px auto;
  padding: 20px;
  background-color: #ffffff;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  border-radius: 4px;
}


.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 20px;
  margin: 20px auto;
  padding: 20px;
  background-color: #ffffff;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  border-radius: 4px;
}


h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

p {
  font-size: 1rem;
  margin-bottom: 1rem;
}

a {
  color: #1a73e8;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}