html,
body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    /* Prevents scrollbars from affecting the layout */
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f4f4f4;
}

*,
*:before,
*:after {
    box-sizing: border-box;
    /* Include padding and borders in the width and height */
}

.content-container {
    width: 98%;
    /* Use nearly full width of the viewport */
    max-width: 98%;
    /* Limit maximum width to prevent horizontal scrollbar */
    height: 95vh;
    /* Use nearly full height of the viewport */
    min-height: 95vh;
    /* Ensure it at least covers most of the viewport height */
    background-color: white;
    /* Background color for the container */
    padding: 20px;
    /* Padding inside the container */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    /* Shadow for depth perception */
    border-radius: 8px;
    /* Rounded corners for aesthetics */
    display: flex;
    flex-direction: column;
    align-items: center;
    /* Center children horizontally */
    justify-content: flex-start;
    /* Align content to start vertically */
    overflow: auto;
    /* Enable scrolling inside container if content overflows */
}

/* Ensure the table expands to fill the container */
table {
    width: 100%;
    /* Full width of its parent */
    max-width: 100%;
    border-collapse: collapse;
}


input[type="file"],
input[type="text"] {
    width: 100%;
    margin: 10px 0;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.3s ease;
}

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

#preview {
    padding: 10px;
    margin-top: 20px;
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 4px;
    width: 100%;
}

th,
td {
    border: 1px solid #ccc;
    padding: 8px;
    text-align: center;
    word-wrap: break-word;
    /* Allows words to break and wrap onto the next line */
    overflow-wrap: break-word;
    /* Ensures that long words can be broken and wrapped */
    word-break: break-all;
    /* Forces the breaking of long words at any character to prevent overflow */
}

th:nth-child(-n+5) {
    width: 12%;
}

th {
    background-color: #f0f0f0;
    text-align: center;
}

#loader {
    display: none;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    border: 4px solid rgba(0, 0, 0, .1);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border-left-color: #09f;
    animation: spin 1s ease infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.button-loader {
    display: inline-block;
    width: 12px;
    height: 12px;
    border: 2px solid #f3f3f3;
    /* Light grey */
    border-top: 2px solid #3498db;
    /* Blue */
    border-radius: 50%;
    animation: spin 2s linear infinite;
}