/* Shared user / assistant avatars */

.nn-avatar {
    flex-shrink: 0;
    overflow: hidden;
    border-radius: 50%;
    border: 1px solid var(--nn-border);
    background: var(--nn-hover-bg-strong);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

.nn-avatar-img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.nn-avatar-initials {
    font-weight: 600;
    line-height: 1;
    color: var(--nn-text);
    letter-spacing: 0.02em;
    user-select: none;
}

.nn-avatar--sidebar {
    width: 2rem;
    height: 2rem;
}

.nn-avatar--sidebar .nn-avatar-initials {
    font-size: 0.75rem;
}

.nn-avatar--chat {
    width: 2rem;
    height: 2rem;
}

.nn-avatar--chat .nn-avatar-initials {
    font-size: 0.6875rem;
}

.nn-avatar--md {
    width: 2.5rem;
    height: 2.5rem;
}

.nn-avatar--md .nn-avatar-initials {
    font-size: 0.8125rem;
}

.nn-avatar--lg {
    width: 3.5rem;
    height: 3.5rem;
}

.nn-avatar--lg .nn-avatar-initials {
    font-size: 0.9375rem;
}

.nn-avatar--assistant.nn-avatar--chat {
    background: var(--nn-surface);
}

.nn-avatar--assistant .nn-avatar-img {
    object-fit: contain;
    padding: 0.15rem;
}

.nn-avatar--assistant .nn-brand-logo--on-light {
    display: none;
}

html[data-theme="light"] .nn-avatar--assistant .nn-brand-logo--on-dark {
    display: none;
}

html[data-theme="light"] .nn-avatar--assistant .nn-brand-logo--on-light {
    display: block;
}