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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  background-color: #fafafa;
  color: #333;
}
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 230px;
  height: 100vh;
  background-color: #2c3e50;
  padding: 20px;
  overflow-y: auto;
  border-right: 2px solid #2980b9;
  box-shadow: 2px 0 5px rgba(0,0,0,0.1);
}
#navbar a {
  display: block;
  color: #ecf0f1;
  text-decoration: none;
  font-weight: 600;
  padding: 10px 0;
  border-left: 4px solid transparent;
  transition: all 0.3s ease;
  font-size: 1rem;
}

#navbar a:hover,
#navbar a:focus {
  color: #3498db;
  border-left: 4px solid #3498db;
  background-color: #34495e;
  outline: none;
}

#main-doc {
  margin-left: 250px; 
  padding: 30px 40px;
  max-width: 900px;
  background-color: white;
  min-height: 100vh;
  box-shadow: 0 0 15px rgba(0,0,0,0.05);
}

.sar {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: #2c3e50;
  border-bottom: 3px solid #3498db;
  padding-bottom: 5px;
}

.p, .chota, .bada {
  margin-bottom: 15px;
  font-size: 1rem;
}

.bada {
  font-weight: 700;
  font-size: 1.1rem;
  margin-top: 20px;
  color: rgb(0,0,0);
}

.chota {
  font-size: 0.95rem;
  color: #555;
  margin-left: 10px;
}

code {
  display: block;
  background-color: #ecf0f1;
  padding: 10px;
  margin: 15px 0;
  border-radius: 4px;
  font-family: Consolas, Monaco, 'Courier New', Courier, monospace;
  font-size: 0.9rem;
  white-space: pre-wrap;
  line-height: 1.4;
  border: 1px solid #bdc3c7;
}

ul {
  margin-left: 25px;
  margin-bottom: 20px;
  list-style-type: disc;
  color: #444;
}

li {
  margin-bottom: 10px;
  font-size: 1rem;
}

@media (max-width: 767px) {
  #navbar {
    position: relative;
    width: 100%;
    height: auto;
    border-right: none;
    box-shadow: none;
    padding: 10px 15px;
  }

  #navbar a {
    display: inline-block;
    padding: 8px 12px;
    border-left: none;
    margin-right: 10px;
    font-size: 0.9rem;
  }

  #main-doc {
    margin-left: 0;
    padding: 20px 15px;
  }
}