.chat-topbar {
    height: var(--chat-topbar-height);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 0 16px;
    gap: 8px;
    width: 100%;
    box-sizing: border-box;
    flex-shrink: 0;
}

.chat-topbar__spacer {
    display: flex;
    align-items: center;
    gap: 2px;
    min-width: 0;
}

.chat-topbar__actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
    min-width: 0;
}

.chat-mode {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 3px;
    border-radius: var(--chat-radius-pill);
    background: var(--chat-bg-hover);
    border: 1px solid var(--chat-border);
    flex-shrink: 0;
}

.chat-mode__btn {
    min-height: 30px;
    padding: 0 14px;
    border-radius: var(--chat-radius-pill);
    font-size: 13px;
    font-weight: 600;
    color: var(--chat-text-secondary);
    transition: background var(--chat-transition), color var(--chat-transition), box-shadow var(--chat-transition);
}

.chat-mode__btn.is-active {
    background: var(--chat-bg-elevated);
    color: var(--chat-text);
    box-shadow: var(--chat-shadow-soft);
}

.chat-topbar__offer {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 34px;
    padding: 0 10px;
    border-radius: var(--chat-radius-pill);
    color: var(--chat-text-secondary);
    font-size: 13px;
    font-weight: 550;
}

.chat-topbar__offer:hover {
    background: var(--chat-bg-hover);
    color: var(--chat-text);
}

.chat-topbar__search-mobile {
    display: none;
}

.chat-topbar__menu {
    display: none;
}

@media (max-width: 900px) {
    .chat-topbar {
        position: sticky;
        top: 0;
        z-index: 30;
        width: 100%;
        padding: calc(6px + var(--chat-safe-top)) 10px 6px;
        height: auto;
        min-height: calc(52px + var(--chat-safe-top));
        background: color-mix(in srgb, var(--chat-bg-main) 92%, transparent);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--chat-border);
    }

    .chat-topbar__menu,
    .chat-topbar__search-mobile {
        display: inline-flex !important;
    }

    .chat-mode__btn {
        padding: 0 12px;
        min-height: 28px;
        font-size: 12.5px;
    }

    .chat-topbar__offer {
        padding: 0;
        width: 34px;
        justify-content: center;
    }

    .chat-topbar__offer span {
        display: none;
    }
}