$rz-chat-background-color: var(--rz-base-background-color) !default;
$rz-chat-border: var(--rz-border-normal) !default;
$rz-chat-border-radius: var(--rz-border-radius) !default;
$rz-chat-header-padding-block: 0.5rem !default;
$rz-chat-header-padding-inline: 1rem 0.5rem !default;
$rz-chat-header-background-color: $rz-chat-background-color !default;
$rz-chat-header-bottom-border: var(--rz-border-normal) !default;
$rz-chat-header-shadow: none !default;
$rz-chat-header-title-font-size: 1rem !default;
$rz-chat-header-title-font-weight: 600 !default;
$rz-chat-message-user-color: var(--rz-on-primary-lighter) !default;
$rz-chat-message-user-background-color: var(--rz-primary-lighter) !default;
$rz-chat-message-assistant-color: var(--rz-on-base) !default;
$rz-chat-message-assistant-background-color: var(--rz-base) !default;
$rz-chat-message-text-padding: 0.25rem 0.5rem !default;
$rz-chat-message-text-border-radius: var(--rz-border-radius) !default;
$rz-chat-avatar-size: 2rem !default;
$rz-chat-avatar-border-radius: var(--rz-border-radius) !default;
$rz-chat-avatar-font-size: 1rem !default;
$rz-chat-avatar-font-weight: 700 !default;
$rz-chat-message-info-padding: 0 !default;
$rz-chat-message-callout-radius: calc(var(--rz-border-radius) / 4) !default;

// Chat Component Styles - ChatGPT-like UI
.rz-chat {
    display: flex;
    flex-direction: column;
    background-color: var(--rz-chat-background-color);
    border: var(--rz-chat-border);
    border-radius: var(--rz-chat-border-radius);
    overflow: hidden;
}

.rz-chat-header {
    z-index: 1;
    padding-block: var(--rz-chat-header-padding-block);
    padding-inline: var(--rz-chat-header-padding-inline);
    background-color: var(--rz-chat-header-background-color);
    border-bottom: var(--rz-chat-header-bottom-border);
    box-shadow: var(--rz-chat-header-shadow);
}

.rz-chat-header-title {
    flex: 1;
    font-size: var(--rz-chat-header-title-font-size);
    font-weight: var(--rz-chat-header-title-font-weight);
}

.rz-chat-messages {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    overflow-y: auto;
    padding: 0.5rem;
}

.rz-chat-empty {
    height: 100%;

    .rzi {
        font-size: 3rem;
        opacity: 0.3;
    }
}

.rz-chat-message {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    max-width: 90%;
}

.rz-chat-message-text {
    padding: var(--rz-chat-message-text-padding);
    border-radius: var(--rz-chat-message-text-border-radius);
    word-wrap: break-word;
    white-space: pre-wrap;
    font-size: 1rem;
    line-height: 1;
    --rz-text-h1-margin-block-end: 0;
    --rz-text-h2-margin-block-end: 0;
    --rz-text-h3-margin-block-end: 0;
    --rz-text-h4-margin-block-end: 0;
    --rz-text-h5-margin-block-end: 0;
    --rz-text-h6-margin-block-end: 0;
    --rz-text-body1-margin-block-end: 0;
    --rz-text-body2-margin-block-end: 0;
}

.rz-chat-message-avatar,
.rz-chat-participant-avatar  {
    width: var(--rz-chat-avatar-size);
    height: var(--rz-chat-avatar-size);
    border-radius: var(--rz-chat-avatar-border-radius);
    font-size: var(--rz-chat-avatar-font-size);
    font-weight: var(--rz-chat-avatar-font-weight);
    background-color: var(--rz-base);
    color: var(--rz-on-base);
    flex-shrink: 0;
}

.rz-chat-avatar-initials {
    width: 100%;
    overflow: hidden;
    text-align: center;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.rz-chat-message-info {
    padding: var(--rz-chat-message-info-padding); 
}

.rz-chat-message-time {
    font-size: 0.75rem;
    color: var(--rz-text-disabled-color);
    line-height: 1;
}

.rz-chat-date-separator {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: var(--rz-text-secondary-color);

    span {
        padding: 0.125rem 0.5rem;
        border-radius: 1rem;
        background-color: var(--rz-base);
    }
}

.rz-chat-message-participant-name {
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1;
}

.rz-chat-message-user {
    align-self: flex-end;
    flex-direction: row-reverse;

    .rz-chat-message-avatar {
        background-color: var(--rz-chat-message-user-background-color);
        color: var(--rz-chat-message-user-color);
    }

    .rz-chat-message-text {
        background-color: var(--rz-chat-message-user-background-color);
        color: var(--rz-chat-message-user-color);
        border-start-end-radius: var(--rz-chat-message-callout-radius);
     /* --rz-text-h1-color: var(--rz-chat-message-user-color);
        --rz-text-h2-color: var(--rz-chat-message-user-color);
        --rz-text-h3-color: var(--rz-chat-message-user-color);
        --rz-text-h4-color: var(--rz-chat-message-user-color);
        --rz-text-h5-color: var(--rz-chat-message-user-color);
        --rz-text-h6-color: var(--rz-chat-message-user-color);
        --rz-text-body1-color: var(--rz-chat-message-user-color);
        --rz-text-body2-color: var(--rz-chat-message-user-color); */
    }
}

.rz-chat-message-assistant,
.rz-chat-message-participant {
    align-self: flex-start;

    .rz-chat-message-avatar {
        background-color: var(--rz-chat-message-assistant-background-color);
        color: var(--rz-chat-message-assistant-color);
    }

    .rz-chat-message-text {
        background-color: var(--rz-chat-message-assistant-background-color);
        color: var(--rz-chat-message-assistant-color);
        border-start-start-radius: var(--rz-chat-message-callout-radius);
     /* --rz-text-h1-color: var(--rz-chat-message-assistant-color);
        --rz-text-h2-color: var(--rz-chat-message-assistant-color);
        --rz-text-h3-color: var(--rz-chat-message-assistant-color);
        --rz-text-h4-color: var(--rz-chat-message-assistant-color);
        --rz-text-h5-color: var(--rz-chat-message-assistant-color);
        --rz-text-h6-color: var(--rz-chat-message-assistant-color);
        --rz-text-body1-color: var(--rz-chat-message-assistant-color);
        --rz-text-body2-color: var(--rz-chat-message-assistant-color); */
    }
}

.rz-chat-new-messages {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    margin: 0 auto;
    padding: 0.25rem 0.75rem;
    border: none;
    border-radius: 1rem;
    background-color: var(--rz-primary);
    color: var(--rz-on-primary);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    box-shadow: var(--rz-shadow-2);
    z-index: 1;
    transition: background-color 120ms ease;

    .rzi {
        font-size: 1rem;
    }

    &:hover {
        background-color: var(--rz-primary-dark);
    }
}

.rz-chat-input {
    position: sticky;
    bottom: 0;
    z-index: 2;
}

.rz-chat-input-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: stretch;
    gap: 0.5rem;
    padding: 0.5rem;
    height: fit-content;
}

.rz-chat-textarea {
    width: 100%;
    height: fit-content;
    max-height: 10rem;
    overflow-y: scroll;
    padding-block: var(--rz-text-area-padding-block);
    padding-inline: var(--rz-text-area-padding-inline);
    field-sizing: content;
    resize: none;
}

.rz-chat-message-streaming-icon {
    animation: rz-pulse 1.5s infinite;
}

.rz-chat-typing {
    font-size: 0.875rem;
    color: var(--rz-text-tertiary-color);
    padding: 0 0.5rem 0.5rem 0.5rem;
    min-height: 1.25rem;
}

.rz-chat-typing-text {
    font-style: italic;
}

/* Right-to-left send button */
*[dir="rtl"] .rz-chat-send-btn {
    transform: scaleX(-1);
}

// Multi-user chat styles
.rz-chat-users {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.rz-chat-user-avatar {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    background-color: var(--rz-base);
    color: var(--rz-on-base);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    border: 2px solid var(--rz-base-background-color);
    position: relative;
    overflow: hidden;
}

.rz-chat-user-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.rz-chat-user-initials {
    font-size: 0.75rem;
    font-weight: 600;
}

.rz-chat-user-more {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    background-color: var(--rz-base-light);
    color: var(--rz-on-base-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    border: 2px solid var(--rz-base-background-color);
}

.rz-chat-message-user-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--rz-text-secondary-color);
    margin-bottom: 0.125rem;
}

.rz-chat-avatar-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--rz-chat-avatar-border-radius);
}

// Online status indicator
.rz-chat-user-avatar::after {
    content: '';
    position: absolute;
    bottom: -1px;
    right: -1px;
    width: 0.5rem;
    height: 0.5rem;
    background-color: var(--rz-success);
    border: 2px solid var(--rz-base-background-color);
    border-radius: 50%;
    display: none;
}

.rz-chat-user-avatar.online::after {
    display: block;
}

.rz-chat-user-avatar.offline::after {
    background-color: var(--rz-text-disabled-color);
    display: block;
}