body {
    margin: 0;
    padding: 0;
    font-family: 'Exo 2', sans-serif;
}

#banner {
    background-color: #509e95;
    color: white; 
    text-align: center;
    padding: 20px;
    font-size: 3em;
    margin-bottom: 10px;
}

#github-login {
    background-color: #24292e;
    color: white;
    border: none;
    border-radius: 15px;
    padding: 10px 20px;
    text-align: center;
    display: inline-block;
    font-size: 16px;
    margin: 15px auto;
    cursor: pointer;
}

#github-login:hover {
    background-color: #0f4c81;
}

#sign-out {
    background-color: #509e95;
    color: white;
    padding: 10px 20px;
    text-align: center;
    border: none;
    border-radius: 15px;
    font-size: 16px;
    margin: 0 auto 20px auto;
    cursor: pointer;
}

#sign-out:hover {
    background-color: #50809e;
}

#messages {
    margin: auto;
    font-size: 24px;
    font-weight: bold;
    color: #0f4c81;
    text-align: center;
}

#month-buttons-container {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 15px;
}

#prev-month, #next-month {
    width: 100px;
    background-color: #50809e;
    border: none;
    color: white;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s;
}

#prev-month:hover, #next-month:hover {
    background-color: #50599e;
}

#quote {
    font-size: 1.2em;
    text-align: center;
}

#month-year {
    text-align: center;
}

#calendar-app {
    max-width: 100%;
    margin: 0 auto;
    padding: 10px;
}

#calendar-container {
    display: grid;
    grid-template-columns: repeat(7, 1fr); /* 7 days a week, equally divided */
    gap: 5px;
    text-align: center;
}

.day {
    border: 1px solid #ddd;
    padding: 5px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.checkbox-container {
    display: flex;
    align-items: center;
    margin: 2px 0;
    font-size: 1em;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    #banner {
        font-size: 1.8em;
    }

    #quote {
        font-size: 1em;
    }

    #calendar-container {
        grid-template-columns: repeat(5, 1fr);
    }

    .day {
        padding: 2px;
    }

    .checkbox-container {
        flex-direction: column;
        align-items: flex-start;
    }
}