:root {
    --background: #ECF0F4;
    --white: white;
    --gray-light: #FAFBFC;
    --gray-borders: #ECF1F4;
    --gray-dark: #AEB7C2;
    --primary: #4D78C9;
}

/* CSS reset */
*, *:before, *:after {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 16px;
    font-family: 'Poppins', sans-serif;
    height: 100vh;
    width: 100vw;
    background-color: var(--background);
}

.avatar {
    border-radius: 50%;
    width: 2.5rem;
    height: 2.5rem;
    object-fit: cover;
}

.discussion {
    background-color: var(--white);
    border-radius: 0.5rem;
    margin: 1rem;
    width: 100%;
    min-width: 17.5rem;
    max-width: 25rem;
}

.discussion__header {
    background-color: var(--gray-light);
    border-bottom: var(--gray-borders);
    display: flex;
    gap: 0.5rem;
    border-radius: 0.5rem 0.5rem 0 0;
    overflow: hidden;
    padding: 1rem;
    width: 100%;
}

.discussion__header textarea {
    border: 1px solid var(--gray-borders);
    padding: 0.5rem;
    border-radius: 0.25rem;
    height: 3rem;
    transition: height 0.3s ease-in-out;
    resize: none;
    width: 100%;
}

.discussion__header textarea:focus {
    outline: none;
    height: 5rem;
    border: 1px solid var(--primary);
}

.comment {
    display: flex;
    padding: 1rem;
    min-height: 6rem;
    gap: 0.25rem;
    border-bottom: 1px solid var(--gray-borders);
}

.newcomment__toolbar {
    justify-content: end;
    display: flex;
    gap: 0.5rem;
    padding: 0.25rem;
}

.newcomment__toolbar button {
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
}

.button--primary {
    background-color: var(--primary);
    color: var(--white);
    min-width: 5rem;
}

.comment__text {
    font-size: 0.75rem;
}

.comment__author {
    font-size: 0.8rem;
}

.comment__date {
    font-size: 0.75rem;
    margin-left: 0.25rem;
    color: var(--gray-dark);
}