/* ---------- Drawer shell ---------- */
.mud-drawer.test-chat-drawer {
    display: flex;
    flex-direction: column;
    max-width: 100vw;
}

    .mud-drawer.test-chat-drawer .mud-drawer-content {
        flex: 1 1 auto;
        min-height: 0;
        display: flex;
        flex-direction: column;
    }

.test-chat {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    background: var(--mud-palette-surface);
}

/* ---------- Header ---------- */
.test-chat-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 12px 12px 16px;
    border-bottom: 1px solid var(--mud-palette-lines-default);
    flex-shrink: 0;
}

.test-chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    background: rgba(var(--mud-palette-primary-rgb), 0.12);
    color: var(--mud-palette-primary);
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

    .test-chat-avatar.sm {
        width: 30px;
        height: 30px;
        border-radius: 9px;
    }

    .test-chat-avatar.error {
        background: rgba(var(--mud-palette-error-rgb), 0.12);
        color: var(--mud-palette-error);
    }

.test-chat-agent {
    min-width: 0;
    flex: 1;
}

.test-chat-agent-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--mud-palette-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.test-chat-agent-sub {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 2px;
    font-size: 12px;
    color: var(--mud-palette-text-secondary);
}

.test-chat-dot {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--mud-palette-text-disabled);
    flex-shrink: 0;
}

.test-chat-badge {
    font-size: 10.5px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--mud-palette-primary);
    background: rgba(var(--mud-palette-primary-rgb), 0.12);
    padding: 4px 8px;
    border-radius: 6px;
    flex-shrink: 0;
}

/* ---------- Read-only config strip ---------- */
.test-chat-config {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 10px 16px;
    border-bottom: 1px solid var(--mud-palette-lines-default);
    background: var(--mud-palette-background-gray);
    overflow-x: auto;
}

.test-chat-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 11.5px;
    font-weight: 500;
    color: var(--mud-palette-text-secondary);
    background: var(--mud-palette-surface);
    border: 1px solid var(--mud-palette-lines-default);
    padding: 4px 9px;
    border-radius: 7px;
    white-space: nowrap;
    flex-shrink: 0;
}

.test-chat-pill-icon {
    font-size: 15px !important;
    color: var(--mud-palette-text-disabled);
}

/* ---------- Messages ---------- */
.test-chat-messages {
    flex: 1 1 auto;
    overflow-y: auto;
    min-height: 0;
    background: var(--mud-palette-background-gray);
}

.test-chat-messages-inner {
    display: flex;
    flex-direction: column;
    gap: 22px;
    padding: 20px 18px 10px;
}

/* ---------- Empty state ---------- */
.test-chat-empty {
    margin: auto;
    text-align: center;
    max-width: 340px;
    padding: 24px 0 12px;
}

.test-chat-empty-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(var(--mud-palette-primary-rgb), 0.12);
    color: var(--mud-palette-primary);
    display: grid;
    place-items: center;
    margin: 0 auto 16px;
}

    .test-chat-empty-icon .mud-icon-root {
        font-size: 32px;
    }

.test-chat-empty-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--mud-palette-text-primary);
    margin-bottom: 6px;
}

.test-chat-empty-hint {
    font-size: 13px;
    color: var(--mud-palette-text-secondary);
    line-height: 1.55;
    margin-bottom: 22px;
}

.test-chat-suggestions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
}

.test-chat-suggestion {
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--mud-palette-lines-default);
    background: var(--mud-palette-surface);
    border-radius: 10px;
    padding: 11px 13px;
    font-size: 13px;
    color: var(--mud-palette-text-primary);
    font-family: inherit;
    text-align: left;
    cursor: pointer;
    transition: background 0.12s ease, border-color 0.12s ease;
}

    .test-chat-suggestion:hover {
        background: var(--mud-palette-action-default-hover);
        border-color: var(--mud-palette-text-disabled);
    }

.test-chat-suggestion-skeleton {
    border-radius: 10px;
}

.test-chat-suggestion-text {
    flex: 1;
}

.test-chat-suggestion-icon {
    font-size: 17px !important;
    color: var(--mud-palette-primary);
    flex-shrink: 0;
}

.test-chat-suggestion-arrow {
    font-size: 16px !important;
    color: var(--mud-palette-text-disabled);
    flex-shrink: 0;
}

/* ---------- Thinking indicator ---------- */
.test-chat-thinking {
    display: flex;
    gap: 11px;
    align-items: center;
}

.test-chat-thinking-bubble {
    display: flex;
    align-items: center;
    gap: 9px;
    background: var(--mud-palette-surface);
    border: 1px solid var(--mud-palette-lines-default);
    border-radius: 11px;
    padding: 9px 14px;
}

.test-chat-dots {
    display: flex;
    gap: 4px;
}

    .test-chat-dots span {
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--mud-palette-primary);
        animation: test-chat-blink 1.2s infinite;
    }

        .test-chat-dots span:nth-child(2) {
            animation-delay: 0.2s;
        }

        .test-chat-dots span:nth-child(3) {
            animation-delay: 0.4s;
        }

.test-chat-thinking-text {
    font-size: 12.5px;
    color: var(--mud-palette-text-secondary);
}

@keyframes test-chat-blink {
    0%, 80%, 100% {
        opacity: 0.25;
        transform: translateY(0);
    }

    40% {
        opacity: 1;
        transform: translateY(-2px);
    }
}

/* ---------- Error ---------- */
.test-chat-errorrow {
    display: flex;
    gap: 11px;
    align-items: flex-start;
}

.test-chat-error-body {
    flex: 1;
    min-width: 0;
}

.test-chat-error-card {
    border: 1px solid rgba(var(--mud-palette-error-rgb), 0.35);
    background: rgba(var(--mud-palette-error-rgb), 0.08);
    border-radius: 11px;
    padding: 12px 14px;
}

.test-chat-error-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--mud-palette-error);
    margin-bottom: 3px;
}

.test-chat-error-text {
    font-size: 13px;
    color: var(--mud-palette-text-primary);
    line-height: 1.5;
}

.test-chat-retry {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-top: 10px;
    font-size: 12.5px;
    font-weight: 500;
    color: var(--mud-palette-error);
    border: 1px solid rgba(var(--mud-palette-error-rgb), 0.35);
    background: var(--mud-palette-surface);
    padding: 6px 12px;
    border-radius: 8px;
    font-family: inherit;
    cursor: pointer;
}

.test-chat-retry-icon {
    font-size: 16px !important;
}

/* ---------- Composer ---------- */
.test-chat-composer {
    border-top: 1px solid var(--mud-palette-lines-default);
    padding: 10px 16px 8px;
    background: var(--mud-palette-surface);
    flex-shrink: 0;
}

.test-chat-disclaimer {
    text-align: center;
    font-size: 11px;
    color: var(--mud-palette-text-secondary);
    margin-top: 8px;
}

/* ---------- Responsive: full-width drawer on small screens ---------- */
@media (max-width: 600px) {
    .mud-drawer.test-chat-drawer {
        width: 100vw !important;
    }
}