style.css

body {
    font-family: Arial, sans-serif;
    background-color: #f3f3f3;
    margin: 0;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #333;
}
h4 {
    text-align: center;
    color: #424242;
}
form {
    max-width: 400px;
    margin: 20px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

label {
    display: block;
    margin-bottom: 10px;
    color: #333;
}

input[type="number"],
input[type="text"],
select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

button {
    display: block;
    width: 100%;
    padding: 10px;
    background-color: #4CAF50;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    text-transform: uppercase;
}

button:hover {
    background-color: #45a049;
}

.error {
    color: red;
    margin-top: 10px;
}

h2 {
    margin-top: 20px;
    color: #333;
}

#ganttChart {
    margin-top: 20px;
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

table {
    border-collapse: collapse;
    margin: auto;
    width: 100%;
}

table, th, td {
    border: 1px solid #ddd;
    padding: 8px;
}

th {
    background-color: #f2f2f2;
}

.gantt-bars {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    margin-top: 10px;
    height: 40px;
    background-color: #f2f2f2;
    border-radius: 4px;
    overflow: hidden;
}

.gantt-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background-color: #4CAF50;
    color: #fff;
    font-weight: bold;
}

.error {
    color: red;
}

/* Media Queries for Mobile Devices */

@media screen and (max-width: 768px) {
    form {
        max-width: 100%;
    }

    table {
        font-size: 14px;
    }
}

@media screen and (max-width: 480px) {
    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }

    p {
        font-size: 16px;
    }

    form {
        padding: 10px;
    }

    input[type="number"],
    input[type="text"],
    select {
        padding: 8px;
        font-size: 14px;
    }

    button {
        padding: 8px;
        font-size: 14px;
    }
}

/* Custom Styles for Buttons */

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-family: Arial, sans-serif;
    padding-bottom: 10px;
  }

  .button-container {
    margin-bottom: 10px;
  }

  .button-container a {
    display: inline-block;
    margin: 5px;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    background-color: #0366d6; /* GitHub blue */
    color: #fff;
    font-weight: bold;
  }

  .button-container a:hover {
    background-color: #054aa0; /* Darker blue on hover */
  }

  .whatsapp-button {
    display: block;
    width: fit-content;
    padding: 10px;
    background-color: #4CAF50;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    text-transform: uppercase;
    float: left;
    margin-bottom: 30px;
}