Build an Availability Table - Build an Availability Table

HTML-CSS
1

Tell us what’s happening:

I have 35 conditions to be satisfied and write the code
Even after considering all of the conditions and writing the code for almost 10-12 times, it is always getting an error message only for the 35th step
Please help me with this

Your code so far

<!-- file: index.html -->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Availability Table</title>
    <link rel="stylesheet" href="styles.css">
</head>
<body>
    <table>
        <tr>
            <th>Time</th>
            <th>Monday</th>
            <th>Wednesday</th>
            <th>Friday</th>
        </tr>
        <tr class="sharp">
            <th class="time">9:00 AM</th>
            <td class="available-0">0</td>
            <td class="available-2">2</td>
            <td class="available-4">4</td>
        </tr>
        <tr class="half">
            <th class="time">11:00 AM</th>
            <td class="available-1">1</td>
            <td class="available-3">3</td>
            <td class="available-5">5</td>
        </tr>
        <tr class="sharp">
            <th class="time">1:00 PM</th>
            <td class="available-2">2</td>
            <td class="available-4">4</td>
            <td class="available-0">0</td>
        </tr>
        <tr class="half">
            <th class="time">3:00 PM</th>
            <td class="available-3">3</td>
            <td class="available-1">1</td>
            <td class="available-2">2</td>
        </tr>
        <tr class="sharp">
            <th class="time">5:00 PM</th>
            <td class="available-5">5</td>
            <td class="available-0">0</td>
            <td class="available-3">3</td>
        </tr>
    </table>
    <div id="legend">
        <span>Availability</span>
        <div id="legend-gradient"></div>
    </div>
</body>
</html>

/* file: styles.css */
:root {
    --color0: #ffcccc;
    --color1: #ff9999;
    --color2: #ff6666;
    --color3: #ff3333;
    --color4: #cc0000;
    --color5: #990000;
    --solid-border: 2px solid #333;
    --dashed-border: 2px dashed #333;
}

table {
    border-collapse: collapse;
    margin: 20px auto;
    font-family: Arial, sans-serif;
}

th, td {
    padding: 10px;
    text-align: center;
    border: 1px solid #333;
}

th {
    background-color: #f0f0f0;
    font-weight: bold;
}

.time {
    background-color: #e0e0e0;
}

.available-0 {
    background-color: var(--color0);
}

.available-1 {
    background-color: var(--color1);
}

.available-2 {
    background-color: var(--color2);
}

.available-3 {
    background-color: var(--color3);
}

.available-4 {
    background-color: var(--color4);
}

.available-5 {
    background-color: var(--color5);
}

.sharp td {
    border-bottom: var(--solid-border);
}

.half td {
    border-bottom: var(--dashed-border);
}

#legend {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 20px;
    font-family: Arial, sans-serif;
}

#legend span {
    font-weight: bold;
    font-size: 16px;
}

#legend-gradient {
    width: 200px;
    height: 20px;
    background-image: linear-gradient( 90deg, 
        to right,
        var(--color0) 0% 16.66%,
        var(--color1) 16.66% 33.33%,
        var(--color2) 33.33% 50%,
        var(--color3) 50% 66.66%,
        var(--color4) 66.66% 83.33%,
        var(--color5) 83.33% 100%
    );
}

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36 Edg/140.0.0.0

Challenge Information:

Build an Availability Table - Build an Availability Table
https://www.freecodecamp.org/learn/full-stack-developer/lab-availability-table/build-an-availability-table

2

please use whole numbers