.language-select {
    background: transparent;
    color: var(--muted-text-color);
    border: none;
    border-radius: 0;
    padding: 0;
    font-size: 1.05rem;
    min-width: 120px;
    cursor: pointer;
}

.language-select-light {
    min-height: 32px;
}

.message-list {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow-y: auto;
    min-height: 0;
    height: 100%;
    padding: 6px 10px 8px 4px;
    scrollbar-gutter: stable;
    overscroll-behavior: contain;
}

.message-list-light {
    padding-right: 12px;
}

.message {
    max-width: min(70%, 860px);
    padding: 16px 20px;
    border-radius: 24px;
    font-size: 1rem;
    line-height: 1.58;
    animation: fadeIn 0.3s ease;
    box-shadow: 0 12px 28px rgba(30, 52, 73, 0.05);
    border: 1px solid rgba(67, 97, 125, 0.1);
}

.message.user {
    align-self: flex-end;
    background-color: var(--user-message-bg);
    color: #ffffff;
    border-color: transparent;
    border-bottom-right-radius: 8px;
}

.message.system {
    align-self: flex-start;
    background-color: var(--bot-message-bg);
    color: var(--text-color);
    border-bottom-left-radius: 8px;
    white-space: pre-wrap;
    word-break: break-word;
}

.message-system-static {
    color: var(--muted-text-color);
}

.message-separator {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 4px 0 -3px;
    color: var(--subtle-text-color);
    font-size: 0.76rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.message-separator::before,
.message-separator::after {
    content: "";
    flex: 1;
    height: 1px;
    background: rgba(67, 97, 125, 0.18);
}

.message-separator span {
    white-space: nowrap;
}

.message.system ul {
    margin: 8px 0 8px 18px;
    padding: 0;
}

.message.system li {
    margin: 4px 0;
}

.message.system p {
    margin: 6px 0;
}

@media (max-width: 720px) {
    .message-list {
        padding-right: 4px;
    }

    .message {
        max-width: 92%;
    }
}

@media (max-width: 560px) {
    .language-select {
        min-width: 0;
        font-size: 0.98rem;
    }

    .message-list {
        gap: 12px;
        padding-bottom: 14px;
    }

    .message {
        max-width: 96%;
        padding: 14px 16px;
        font-size: 0.95rem;
        line-height: 1.5;
        border-radius: 20px;
    }

    .message-separator {
        gap: 10px;
        font-size: 0.68rem;
    }
}