body {
    margin: 0;
    font-family: 'Arial', sans-serif;
    background-color: #f0f0f0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    grid-template-rows: 1fr 1fr;
    gap: 20px;
    width: 90%;
    max-width: 1200px;
    height: 90vh;
}

.upload-section, .random-question-section, .question-list-section {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    overflow-y: auto;
}

.upload-section {
    grid-column: 1 / 2;
    grid-row: 1 / 2;
}

.random-question-section {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
}

.question-list-section {
    grid-column: 2 / 3;
    grid-row: 1 / 3;
}

#fileInput, button, select {
    margin: 10px 0;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
}

button {
    background-color: #007bff;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #0056b3;
}

h2 {
    margin-top: 0;
    color: #333;
    border-bottom: 2px solid #007bff;
    padding-bottom: 5px;
}

ul {
    list-style: none;
    padding: 0;
}

li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

li:last-child {
    border-bottom: none;
}