.retro-chat {
    display: grid;
    gap: 14px;
}

.retro-chat__header,
.retro-chat__shell,
.retro-chat__private article {
    border: 1px solid #9a9a9a;
    background: linear-gradient(#f8f8f8, #e7e7e7);
    box-shadow: inset 1px 1px #fff, inset -1px -1px #bbb;
}

.retro-chat__header {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 12px;
}

.retro-chat__header h2,
.retro-chat__rooms h3,
.retro-chat__users h3,
.retro-chat__private h3 {
    margin-top: 0;
}

.retro-chat__badge {
    align-self: flex-start;
    border: 1px solid #6d8b4e;
    background: #e7ffd8;
    padding: 3px 8px;
    font-size: 12px;
}

.retro-chat__shell {
    display: grid;
    grid-template-columns: 150px minmax(0, 1fr) 150px;
    min-height: 460px;
}

.retro-chat__rooms,
.retro-chat__users {
    padding: 10px;
    background: #ececec;
}

.retro-chat__rooms {
    border-right: 1px solid #bdbdbd;
}

.retro-chat__users {
    border-left: 1px solid #bdbdbd;
}

.retro-chat__main {
    display: grid;
    grid-template-rows: auto minmax(250px, 1fr) auto auto;
    min-width: 0;
}

.retro-chat__topic {
    padding: 8px 10px;
    border-bottom: 1px solid #bdbdbd;
    background: #d8e8ff;
    font-weight: bold;
}

.retro-chat__messages {
    overflow-y: auto;
    padding: 10px;
    background: #fff;
    font-family: Verdana, Arial, sans-serif;
    font-size: 12px;
}

.retro-chat__message {
    margin: 0 0 6px;
    line-height: 1.45;
    overflow-wrap: anywhere;
}

.retro-chat__time {
    color: #777;
    margin-right: 4px;
}

.retro-chat__sender {
    font-weight: bold;
    color: #154f9f;
}

.retro-chat__message--action .retro-chat__text {
    color: #8a3a00;
    font-style: italic;
}

.retro-chat__form,
.retro-chat__private-form,
.retro-chat__admin form {
    display: flex;
    gap: 6px;
    padding: 8px;
    border-top: 1px solid #bdbdbd;
    background: #efefef;
}

.retro-chat__form input[type="text"],
.retro-chat__private-form input[type="text"] {
    flex: 1;
}

.retro-chat__hint {
    margin: 0;
    padding: 0 8px 8px;
    font-size: 11px;
    color: #666;
    background: #efefef;
}

.retro-chat__room,
.retro-chat__user {
    display: block;
    width: 100%;
    border: 1px solid transparent;
    background: transparent;
    padding: 5px 4px;
    text-align: left;
    cursor: pointer;
}

.retro-chat__room:hover,
.retro-chat__user:hover,
.retro-chat__room.is-active {
    border-color: #8ba8ce;
    background: #fff;
}

.retro-chat__locked {
    color: #a00000;
    font-size: 11px;
}

.retro-chat__private {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.retro-chat__private article {
    padding: 10px;
}

.retro-chat__private-messages {
    max-height: 180px;
    overflow-y: auto;
    background: #fff;
    border: 1px solid #ccc;
    padding: 8px;
}

.retro-chat__private-line {
    margin: 0 0 5px;
    font-size: 12px;
}

.retro-chat__admin form {
    flex-wrap: wrap;
    border-top: 0;
    padding: 0;
    background: transparent;
}

.retro-chat__error {
    color: #a00000;
    font-weight: bold;
}

@media (max-width: 760px) {
    .retro-chat__shell {
        grid-template-columns: 1fr;
    }

    .retro-chat__rooms,
    .retro-chat__users {
        border: 0;
        border-bottom: 1px solid #bdbdbd;
    }

    .retro-chat__form,
    .retro-chat__private-form {
        flex-direction: column;
    }
}

.retro-chat__guest {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    border: 1px solid #9a9a9a;
    background: linear-gradient(#fff7d7, #f0df9a);
    box-shadow: inset 1px 1px #fff, inset -1px -1px #c8b86d;
    padding: 10px;
}

.retro-chat__guest[hidden] {
    display: none;
}

.retro-chat__guest strong {
    margin-right: 4px;
}

.retro-chat__guest input[type="text"] {
    min-width: 170px;
}

.retro-chat__guest small {
    flex-basis: 100%;
    color: #6b5a19;
}

.retro-chat__guest-badge,
.retro-chat__guest-label {
    display: inline-block;
    margin-left: 4px;
    border: 1px solid #b99b32;
    background: #fff4bd;
    padding: 0 3px;
    font-size: 10px;
    font-style: normal;
    color: #6b4a00;
}

.retro-chat__user.is-self {
    font-weight: bold;
}

.retro-chat__private-form input[readonly],
.retro-chat__admin input[readonly] {
    background: #f7f7f7;
    color: #555;
}