.messenger-shell {
    --messenger-card-bg: var(--nx-color-card-bg, var(--bs-card-bg, var(--bs-body-bg, #fff)));
    --messenger-card-body-bg: var(--nx-color-card-body-bg, var(--messenger-card-bg));
    --messenger-border: var(--nx-color-card-border, var(--bs-card-border-color, var(--bs-border-color, rgba(0, 0, 0, 0.12))));
    --messenger-text: var(--nx-color-on-surface, var(--bs-body-color, #212529));
    --messenger-muted: var(--nx-color-muted, var(--bs-secondary-color, #6c757d));
    --messenger-accent: var(--nx-color-primary, var(--bs-primary, #0d6efd));
    --messenger-soft-bg: color-mix(in srgb, var(--messenger-card-body-bg) 94%, var(--messenger-text) 6%);
    --messenger-input-bg: color-mix(in srgb, var(--messenger-card-body-bg) 98%, var(--messenger-text) 2%);
    --messenger-own-bg: color-mix(in srgb, var(--messenger-accent) 82%, var(--messenger-card-body-bg));
    --messenger-own-text: var(--bs-white, #fff);
    --messenger-other-bg: color-mix(in srgb, var(--messenger-card-body-bg) 82%, var(--messenger-accent) 18%);
    --messenger-other-text: var(--messenger-text);
    color: var(--messenger-text);
}

.messenger-head {
    margin-bottom: 1.5rem;
}

.messenger-page-card,
.messenger-card {
    background: var(--messenger-card-bg);
    border-color: var(--messenger-border);
    border-radius: var(--nx-theme-radius-lg, var(--bs-border-radius-lg, .5rem));
    color: var(--messenger-text);
    box-shadow: var(--nx-theme-card-shadow, 0 .5rem 1.25rem rgba(15, 23, 42, .08));
    overflow: hidden;
}

.messenger-page-card {
    border: 1px solid var(--messenger-border);
}

.messenger-card .card-header,
.messenger-card .card-footer {
    background: var(--messenger-soft-bg);
    border-color: var(--messenger-border);
    color: var(--messenger-text);
}

.messenger-card .card-header {
    padding: .95rem 1rem;
}

.messenger-card .card-footer {
    padding: 1rem;
}

.messenger-card .card-body {
    background: var(--messenger-card-body-bg);
    color: var(--messenger-text);
}

.messenger-card-title {
    display: block;
    font-weight: 700;
    letter-spacing: 0;
}

.messenger-start-card .card-body {
    padding: 1rem;
}

.messenger-user-card {
    min-height: 24rem;
}

.messenger-chat-card #chat-window {
    min-height: 28rem;
    height: 28rem;
    overflow-y: auto;
    background:
        linear-gradient(
            180deg,
            color-mix(in srgb, var(--messenger-card-body-bg) 98%, var(--messenger-accent) 2%),
            var(--messenger-card-body-bg)
        );
    padding: 1.25rem;
}

.messenger-chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.messenger-compose {
    display: flex;
    gap: .75rem;
    align-items: center;
}

.messenger-shell .form-select,
.messenger-shell .form-control {
    background-color: var(--messenger-input-bg);
    border-color: var(--messenger-border);
    color: var(--messenger-text);
    min-height: 2.75rem;
}

.messenger-shell .form-select:focus,
.messenger-shell .form-control:focus {
    background-color: var(--messenger-input-bg);
    border-color: var(--messenger-accent);
    color: var(--messenger-text);
    box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--messenger-accent) 18%, transparent);
}

.messenger-shell .form-control::placeholder {
    color: var(--messenger-muted);
}

.messenger-shell .list-group {
    background: var(--messenger-card-body-bg);
}

.messenger-shell .list-group-item {
    background: var(--messenger-card-body-bg);
    border-color: var(--messenger-border);
    color: var(--messenger-text);
    padding: .875rem 1rem;
    transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}

.messenger-shell .list-group-item-action:hover,
.messenger-shell .list-group-item-action:focus {
    background: color-mix(in srgb, var(--messenger-accent) 12%, var(--messenger-card-body-bg));
    color: var(--messenger-text);
}

.messenger-shell .text-muted {
    color: var(--messenger-muted) !important;
}

.messenger-shell .btn-primary {
    background-color: var(--messenger-accent);
    border-color: var(--messenger-accent);
    color: var(--bs-white, #fff);
    min-height: 2.75rem;
    padding-inline: 1.25rem;
}

.messenger-shell .btn-primary:hover,
.messenger-shell .btn-primary:focus {
    background-color: color-mix(in srgb, var(--messenger-accent) 86%, #000);
    border-color: color-mix(in srgb, var(--messenger-accent) 86%, #000);
}

.messenger-bubble {
    max-width: min(72%, 34rem);
    overflow-wrap: anywhere;
    border: 1px solid var(--messenger-border);
    box-shadow: 0 0.15rem 0.4rem rgba(0, 0, 0, 0.06);
    padding: .75rem .875rem !important;
    border-radius: var(--nx-theme-radius-md, var(--bs-border-radius, .375rem)) !important;
    line-height: 1.45;
}

.messenger-bubble-own {
    background: var(--messenger-own-bg);
    border-color: color-mix(in srgb, var(--messenger-accent) 55%, var(--messenger-border));
    color: var(--messenger-own-text);
}

.messenger-bubble-own .text-muted {
    color: color-mix(in srgb, var(--messenger-own-text) 78%, transparent) !important;
}

.messenger-bubble-other {
    background: var(--messenger-other-bg);
    color: var(--messenger-other-text);
}

.user-active {
    background-color: var(--messenger-accent) !important;
    border-color: var(--messenger-accent) !important;
    color: var(--bs-white, #fff) !important;
}

.user-active .text-muted,
.user-active .badge {
    color: var(--bs-white, #fff) !important;
}

@media (max-width: 991.98px) {
    .messenger-user-card {
        min-height: 0;
    }

    .messenger-chat-card #chat-window {
        min-height: 22rem;
        height: 22rem;
    }
}

@media (max-width: 575.98px) {
    .messenger-shell {
        padding-left: .75rem;
        padding-right: .75rem;
    }

    .messenger-compose {
        flex-direction: column;
        align-items: stretch;
    }

    .messenger-compose .btn {
        width: 100%;
    }

    .messenger-bubble {
        max-width: 88%;
    }
}