* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
  }
  
  body {
    background-color: #dbe9ff;
    font-family: "Poppins", sans-serif;
  }
  
  .container {
    background-color: #f0f9ff;
    position: absolute;
    transform: translate(-50%, -50%);
    left: 50%;
    top: 50%;
    width: min(90%, 31.25em);
    padding: 3.75em 0;
    border-radius: 0.8em;
    box-shadow: 0 1.97em 3.75em rgba(1, 87, 185, 0.2);
    text-align: center;
  }
  
  .timer-display {
    position: relative;
    width: 90%;
    background-color: #3c98ff;
    padding: 1em 0;
    font-family: "Roboto Mono", monospace;
    color: #f0f9ff;
    font-size: 2.5em;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.3em;
    margin: 0 auto;
    box-shadow: 0 0.5em 1em rgba(1, 87, 185, 0.2);
  }
  
  .buttons {
    width: 80%;
    margin: 3.8em auto 0 auto;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
  }
  
  .buttons button {
    font-size: 1.12em;
    background-color: #dbe9ff;
    color: #3c98ff;
    border: none;
    font-family: "Poppins", sans-serif;
    border-radius: 0.5em;
    padding: 1em 1.5em;
    cursor: pointer;
    outline: none;
    margin: 0.5em;
  }
  
  #start-timer {
    background-color: #3c98ff;
    color: #f0f9ff;
  }
  
  /* Media Queries */
  @media (max-width: 568px) {
    .container {
      width: 96%;
      padding: 2.5em 1em;
    }
  
    .timer-display {
      font-size: 2em;
    }
  
    .buttons button {
      font-size: 1em;
      padding: 0.75em 1em;
    }
  }
  
  @media (max-width: 480px) {
    .timer-display {
      font-size: 1.5em;
    }
  
    .buttons button {
      font-size: 0.875em;
      padding: 0.5em 0.75em;
    }
  }