:root {
    --first-color: #00796b;
    --second-color:#ff5722;
    --third-color:#004d40;
    --white-color: #fff;
}

/* Basic Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  /* Body Styling */
  body {
    font-family: 'Arial', sans-serif;
    background-color: #f0f0f0;
    display: flex;
    justify-content: center;
    height: 100vh;
  }
  
  /* Container Styling */
  .container {
    background-color: var(--white-color);
    padding: 20px 30px;
    border-radius: 8px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
    min-width: 600px;
    margin: 25px 10px;
  }
  
  /* Form Styling */
  .form {
    display: flex;
    margin-bottom: 20px;
  }
  
  .input {
    flex-grow: 1;
    padding: 10px;
    border: 2px solid #ddd;
    border-radius: 18px 0 0 18px;
    font-size: 18px;
    outline: none;
    caret-color: #ddd;
  }
  
  .add {
    padding: 12px 15px;
    border: 2px solid #4CAF50;
    border-left: none;
    background-color: #4CAF50;
    color: #ffffff;
    border-radius: 0 18px 18px 0;
    cursor: pointer;
    font-size: 18px;
    transition: background-color 0.3s;
    
  }
  
  .add :hover {
    background-color: #45a049;
  }
  
  /* Tasks Styling */
  .tasks {
    max-height: 500px;
    overflow-y: auto;
  }
  
  /* Individual Task Styling */
  .task {
    background-color: #f9f9f9;
    margin-bottom: 10px;
    padding: 10px 12px;
    border: 2px solid #dddddd;
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .task.done {
    background-color: #d4edda;
    border-color: #c3e6cb;
    text-decoration: line-through;
    color: #155724;
  }
  
  .delete {
    background-color: #ff4d4d;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    padding: 5px 10px;
    cursor: pointer;
  }
  
  .del:hover {
    background-color: #ff1a1a;
  }