body {
    font-family: sans-serif;
    margin: 0;
    background-color: #f4f4f9;
    color: #333;
}

header {
    background-color: #4a4a8c;
    color: white;
    padding: 1rem;
    text-align: center;
}

main {
    padding: 1rem;
}

#add-word-form {
    display: flex;
    margin-bottom: 1rem;
}

#add-word-form input {
    flex-grow: 1;
    padding: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 4px;
}

#add-word-form button {
    padding: 0.5rem 1rem;
    background-color: #4a4a8c;
    color: white;
    border: none;
    border-radius: 4px;
    margin-left: 0.5rem;
    cursor: pointer;
}

#word-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.word-card {
    background-color: white;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    cursor: pointer;
}

.word-card .word {
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.word-card .delete-btn {
    float: right;
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
}

#word-details-container {
    margin-top: 2rem;
    padding: 1rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: none; /* Initially hidden */
}

#word-details-container h2 {
    margin-top: 0;
}