:root {
    --first-color: #1C1E25;
    --second-color: #23272f;
    --third-color: #2b303b;
    --alter-color: #58C4DC;
    --input-color: #333944;
    --text-color: #F6F7F9;
    --time-color: #929AAB;
    --border-color: #2E2F34;
    --dimen-3xs: 7px;
    --dimen-2xs: 9px;
    --dimen-xs: 12px;
    --dimen-sm: 14px;
    --dimen-md: 16px;
    --dimen-lg: 18px;
    --dimen-xl: 20px;
    --dimen-2xl: 24px;
    --dimen-3xl: 32px;
    --dimen-4xl: 40px;
    --dimen-5xl: 48px;
    --border: 1px solid var(--border-color)
}

::-webkit-scrollbar {
    width: var(--dimen-2xs);
    height: var(--dimen-2xs);
}

::-webkit-scrollbar-track {
    background-color: var(--first-color);
    border-radius: var(--dimen-3xl);
}

::-webkit-scrollbar-thumb {
    background-color: var(--third-color);
    border-radius: var(--dimen-3xl);
}

* {
    margin: 0;
    padding: 0;
}

html {
    font-family: ui-sans-serif;
    color: var(--text-color);
    font-size: var(--dimen-md);
    background-color: var(--first-color);
}

#root {
    display: grid;
    grid-template-columns: max-content 29dvw 2fr;
    min-height: 100dvh;
    font-family: sans-serif;
}

.chat-nav {
    display: grid;
    grid-template-columns: 1fr;
    place-content: center;
    border-right: 1px solid var(--border-color);
    color: var(--text-color);
}

.chat-nav-link {
    width: 63px;
    height: 63px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: whitesmoke;
    font-size: 31px;
    text-decoration: none;
}

.chat-nav-link:hover,
.chat-nav-link.active{
    background-color: var(--third-color);
}

.chat-menu {
    background-color: var(--second-color);
    border-right: 1px solid var(--border-color);
    box-sizing: border-box;
    padding-right: var(--dimen-md);
}

.chat-menu-header{
    display: flex;
    align-items: center;
    column-gap: var(--dimen-md);
    justify-content: space-between;
    border-bottom: var(--border);
    margin-left: var(--dimen-md);
}

.chat-menu-title {
    font-size: var(--dimen-3xl);
    padding: var(--dimen-lg) 0;
}

.chat-menu-pref-lang{
    display: flex;
    align-items: center;
    column-gap: var(--dimen-md);
}

.chat-menu-pref-lang-item{
    cursor: pointer;
}

.chat-menu-pref-lang-item:hover,
.chat-menu-pref-lang-item.active{
    color: var(--alter-color);
    text-decoration: underline;
}

.chat-menu-list {
    overflow: auto;
    max-height: 80dvh;
    padding: var(--dimen-lg) var(--dimen-md) 0 var(--dimen-md);
    margin-top: var(--dimen-lg);
}

.chat-menu-visit{
    color: var(--alter-color);
    text-decoration: none;
    font-weight: bold;
}

.chat-menu-visit:hover{
    text-decoration: underline;
}

.chat-menu-list-item {
    cursor: pointer;
    display: grid;
    grid-template-columns: max-content 1fr max-content;
    align-items: center;
    column-gap: var(--dimen-xs);
    padding: var(--dimen-xs);
    border-radius: var(--dimen-2xs);
    margin-bottom: var(--dimen-sm);
    border-width: 1px;
    border-style: solid;
    border-color: transparent;
}

.chat-menu-list-item.active,
.chat-menu-list-item:hover {
    background-color: var(--third-color);
}

.chat-menu-list-item:hover{
    border-color: var(--alter-color);
}

.chat-menu-list-item-title{
    overflow: hidden;
    white-space: nowrap;
}

.chat-menu-list-item-title-desc{
    margin-top: 4px;
    font-size: var(--dimen-sm);
}

.chat-menu-list-item-tag {
    border: var(--border);
    border-color: var(--alter-color);
    font-size: var(--dimen-xs);
    color: var(--alter-color);
    padding: 4px;
    border-radius: 3px;
}

.chat-menu-list-item-img {
    min-width: 35px;
    min-height: 35px;
    max-width: 35px;
    max-height: 35px;
    border-radius: 99px;
    background-color: var(--third-color);
    object-fit: cover;
}

.chat-to-bottom{
    position: fixed;
    bottom: 50%;
    right: var(--dimen-md);
    transform: translateY(-50%);
    min-width: 30px;
    min-height: 30px;
    max-width: 30px;
    max-height: 30px;
    border-radius: 5px;
    background-color: var(--third-color);
    display: flex;
    align-items: center;
    justify-content: center;
    border: var(--border);
    border-color: var(--alter-color);
    cursor: pointer;
}

.chat-to-bottom:hover{
    background-color: var(--first-color);
}

.chat-messages {
    display: grid;
    grid-template-rows: 8dvh 80dvh 12dvh;
    background-image: url("bg-chat.png");
}

.chat-messages-date-separator {
    place-self: center;
    font-size: var(--dimen-xs);
    font-weight: 600;
}

.chat-messages-header, .chat-messages-footer {
    box-sizing: border-box;
    align-items: center;
    padding: 0 var(--dimen-md);
}

.chat-messages-header {
    display: grid;
    grid-template-columns: 1fr max-content;
    background-color: var(--third-color);
    border-bottom: var(--border);
    gap: var(--dimen-md);
    justify-content: space-between;
}

.chat-messages-header-title{
    overflow: hidden;
    white-space: nowrap;
}

.chat-messages-header-helper-menu{
    display: none;
}

.chat-messages-content {
    overflow-y: auto;
    overflow-x: hidden;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--dimen-sm);
    grid-auto-rows: max-content;
    padding: var(--dimen-md);
    max-height: 80dvh;
}

.chat-messages-load-more{
    border: var(--border);
    border-color: var(--alter-color);
    padding: 4px 8px;
    width: max-content;
    font-size: var(--dimen-xs);
    border-radius: 5px;
    color: var(--alter-color);
    cursor: pointer;
    justify-self: center;
}

.chat-messages-load-more:hover{
    font-weight: 600;
    background-color: var(--alter-color);
    color: var(--first-color);
}

.chat-messages-content-others-wrapper,
.chat-messages-content-me{
    border: var(--border);
    padding: var(--dimen-2xs);
    box-sizing: border-box;
    border-radius: var(--dimen-2xs);
    min-width: 111px;
    width: max-content;
    max-width: 60dvw;
    word-break: break-word;
    overflow-wrap: break-word;
    white-space: normal;
}

.chat-messages-content-others {
    display: flex;
    align-items: center;
    column-gap: var(--dimen-sm);
}

.chat-messages-content-others-picture{
    max-width: 30px;
    max-height: 30px;
    min-width: 30px;
    min-height: 30px;
    object-fit: cover;
    border-radius: 99px;
    background-color: var(--second-color);
    border: var(--border);
    padding: var(--dimen-3xs);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-messages-content-others-header{
    display: flex;
    column-gap: var(--dimen-3xs);
    align-items: center;
    margin-bottom: 2px;
}

.chat-messages-content-others-header-person{
    font-weight: 600;
}

.chat-messages-content-others-header-role{
    color: var(--alter-color);
}

.chat-messages-content-others-wrapper{
    background-color: var(--second-color);
}

.chat-messages-content-me-time,
.chat-messages-content-others-wrapper-time {
    margin-top: 2px;
    color: var(--time-color);
    font-size: var(--dimen-xs);
    justify-self: end;
}

.chat-messages-content-me {
    background-color: var(--third-color);
    justify-self: end;
}

.chat-messages-footer {
    display: grid;
    grid-template-columns: 1fr max-content;
    column-gap: var(--dimen-md);
}

.chat-messages-input {
    background-color: var(--input-color);
    outline: none;
    padding: var(--dimen-sm) var(--dimen-xl);
    border-radius: 111px;
    color: var(--text-color);
    font-size: var(--dimen-lg);
    border: var(--border);
    max-width: 80dvw;
    box-sizing: border-box;
}

.chat-messages-send {
    width: var(--dimen-4xl);
    height: var(--dimen-4xl);
    border-radius: 111px;
    display: flex;
    background-color: var(--third-color);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: var(--border);
    border-color: var(--alter-color);
    box-sizing: border-box;
}

.chat-messages-send:hover {
    box-shadow: 0 0 4px 1px #58C4DC;
}

@media screen and (max-width: 800px){
    #root{
        grid-template-columns: 1fr;
    }

    .chat-menu {
        position: fixed;
        top: 0;
        left: -80dvw;
        width: 80dvw;
        height: 100dvh;
        transition: .3s;
    }

    .chat-messages{
        max-width: 100dvw;
        width: 100dvw;
    }

    .chat-menu.active{
        left: 0;
    }

    .chat-nav{
        display: none;
    }

    .chat-messages-header-helper-menu{
        display: block;
    }
}

@media screen and (max-width: 370px){
    .chat-messages-input{
        max-width: 70dvw;
    }
}

@media screen and (max-width: 300px){
    .chat-messages-input{
        max-width: 65dvw;
    }
}