.softphone-container {
    background-color: white;
    border: 1px solid #ccc;
    width: 100%;
    height: 100%;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

 .display {
     background-color: #222;
     color: white;
     text-align: right;
     padding: 10px;
     font-size: 18px;
     border-radius: 4px;
 }

 .keypad {
     margin-top: 20px;
     display: grid;
     grid-template-columns: repeat(3, 1fr);
     gap: 10px;
 }

 .key {
     padding: 20px;
     text-align: center;
     font-size: 18px;
     background-color: #f9f9f9;
     border: 1px solid #ddd;
     border-radius: 4px;
     cursor: pointer;
     transition: background-color 0.3s;
 }

     .key:hover {
         background-color: #ccc;
     }

 .actions {
     display: flex;
     justify-content: space-around;
     margin-top: 20px;
 }

 .action-btn {
     padding: 10px;
     width: 40%;
     color: white;
     border: none;
     border-radius: 4px;
     cursor: pointer;
 }

 .call-btn {
     background-color: #28a745;
 }

 .hangup-btn {
     background-color: #dc3545;
 }