.ssc-chatroom {
    border: 1px solid #d9d9d9;
    border-radius: 14px;
    padding: 16px;
    background: #fff;
    box-shadow: 0 4px 18px rgba(0,0,0,0.04);
    max-width: 900px;
}

.ssc-chatroom__header {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    margin-bottom: 14px;
}

.ssc-chatroom__title {
    margin: 0;
    font-size: 1.25rem;
}

.ssc-chatroom__subtitle {
    margin: 4px 0 0;
    color: #666;
    font-size: 0.95rem;
}

.ssc-chatroom__online {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    font-weight: 600;
}

.ssc-online-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #1fa24a;
    display: inline-block;
}

.ssc-chatroom__messages {
    height: 420px;
    overflow-y: auto;
    border: 1px solid #e7e7e7;
    border-radius: 12px;
    padding: 12px;
    background: #fafafa;
}

.ssc-message + .ssc-message {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #ececec;
}

.ssc-message__meta {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: baseline;
    margin-bottom: 4px;
}

.ssc-message__name {
    font-weight: 700;
}

.ssc-message__time {
    color: #777;
    font-size: 0.85rem;
}

.ssc-message__body {
    line-height: 1.45;
    word-break: break-word;
}

.ssc-chatroom__form {
    margin-top: 14px;
    display: grid;
    gap: 12px;
}

.ssc-chatroom__identity label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}

#ssc-nickname,
#ssc-message {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid #cfcfcf;
    border-radius: 10px;
    padding: 10px 12px;
    font: inherit;
}

#ssc-message {
    resize: vertical;
    min-height: 86px;
}

.ssc-chatroom__actions {
    margin-top: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.ssc-chatroom__button {
    border: 0;
    border-radius: 999px;
    padding: 10px 18px;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    background: #111;
    color: #fff;
}

.ssc-chatroom__button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.ssc-chatroom__status {
    color: #555;
    min-height: 1em;
}

.ssc-chatroom__status.is-error {
    color: #b42318;
}

@media (max-width: 640px) {
    .ssc-chatroom__header,
    .ssc-chatroom__actions,
    .ssc-message__meta {
        flex-direction: column;
        align-items: flex-start;
    }

    .ssc-chatroom__messages {
        height: 360px;
    }
}