:root {
    --notification-size: 24px;
}

body,
html {
    height: 100%;
    overflow-x: hidden;
}

body {
    background-color: #f4edfb;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, Helvetica, sans-serif;
    color: #4d2870;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.unread {
    padding: 30px;
    border-radius: 15px;
    background-color: #20c44a;
    font-size: 2.1rem;
    height: 80px;
    width: 80px;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    box-shadow: 2px 2px 10px #00000044;
}

.unread::after,
.unread::before {
    position: absolute;
    right: calc(var(--notification-size) / 4 * -1);
    top: calc(var(--notification-size) / 4 * -1);
    height: var(--notification-size);
    width: var(--notification-size);
    background-color: red;
    border-radius: 100%;
}

.unread::after {
    content: attr(unread);
    display: flex;
    color: white;
    justify-content: center;
    align-items: center;
    font-size: 0.95rem;
    z-index: 10;
    transition: transform 500ms ease-in-out;
    transform: scale(0);
}

.unread::before {
    content: '';
    opacity: 0;
}

.pulse::before {
    animation: pulse 2s linear forwards;
}

.new-messages::after {
    transform: scale(1);
}

button {
    margin-top: 30px;
    border-radius: 10px;
    font-size: 1.2rem;
    font-weight: bold;
    border: none;
    padding: 10px 20px;
    box-shadow: 2px 2px 10px #00000044;
    background-color: #eaf9ee;
    cursor: pointer;
}

@keyframes pulse {
    from {
        transform: scale(1);
        opacity: 0.9;
    }

    to {
        transform: scale(1.6);
        opacity: 0;
    }
}