.ai-chat-bot {
    --ai-chat-border: #c9d3df;
    --ai-chat-bg: #f7f9fb;
    --ai-chat-panel: #ffffff;
    --ai-chat-user: #e9f5ef;
    --ai-chat-assistant: #eef3fb;
    --ai-chat-alert: #fff2d8;
    --ai-chat-text: #1f2933;
    color: var(--ai-chat-text);
}

.ai-chat-statuses {
    display: grid;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.ai-chat-status {
    background: var(--ai-chat-bg);
    border: 1px solid var(--ai-chat-border);
    min-height: 2.5rem;
    padding: 0.75rem;
}

.ai-chat-status a {
    font-weight: bold;
}

.ai-chat-layout {
    display: grid;
    gap: 1rem;
    grid-template-columns: minmax(0, 2fr) minmax(18rem, 1fr);
}

.ai-chat-panel,
.ai-chat-sources-panel {
    background: var(--ai-chat-panel);
    border: 1px solid var(--ai-chat-border);
    padding: 1rem;
}

.ai-chat-panel h2,
.ai-chat-sources-panel h2 {
    font-size: 1.35rem;
    margin-top: 0;
}

.ai-chat-transcript {
    background: var(--ai-chat-bg);
    border: 1px solid var(--ai-chat-border);
    display: grid;
    gap: 0.75rem;
    margin-bottom: 1rem;
    min-height: 15rem;
    max-height: 32rem;
    overflow-y: auto;
    padding: 0.75rem;
}

.ai-chat-message {
    border: 1px solid var(--ai-chat-border);
    padding: 0.75rem;
    white-space: pre-wrap;
}

.ai-chat-message strong {
    display: block;
    margin-bottom: 0.35rem;
}

.ai-chat-message-user {
    background: var(--ai-chat-user);
}

.ai-chat-message-assistant {
    background: var(--ai-chat-assistant);
}

.ai-chat-message-system {
    background: var(--ai-chat-alert);
}

.ai-chat-bot textarea {
    box-sizing: border-box;
    display: block;
    min-height: 7rem;
    width: 100%;
}

.ai-chat-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.ai-chat-controls button {
    min-width: 7rem;
}

.ai-chat-progress {
    align-items: center;
    background: #fff7e8;
    border: 1px solid #e7bf7a;
    display: flex;
    gap: 0.65rem;
    margin-top: 0.75rem;
    min-height: 2.5rem;
    padding: 0.65rem 0.75rem;
}

.ai-chat-progress[hidden] {
    display: none;
}

.ai-chat-spinner {
    animation: ai-chat-spin 0.8s linear infinite;
    border: 0.18rem solid #d2a04f;
    border-top-color: #3d4651;
    border-radius: 50%;
    flex: 0 0 auto;
    height: 1rem;
    width: 1rem;
}

@keyframes ai-chat-spin {
    to {
        transform: rotate(360deg);
    }
}

.ai-chat-sources {
    display: grid;
    gap: 0.75rem;
    margin: 0;
    padding-left: 1.25rem;
}

.ai-chat-source {
    border-bottom: 1px solid var(--ai-chat-border);
    padding-bottom: 0.75rem;
}

.ai-chat-source:last-child {
    border-bottom: 0;
}

.ai-chat-source-title {
    font-weight: bold;
}

.ai-chat-source-meta {
    color: #536171;
    font-size: 0.9rem;
    margin: 0.25rem 0;
}

.ai-chat-source-snippet {
    margin: 0.25rem 0 0;
}

@media (max-width: 50rem) {
    .ai-chat-layout {
        grid-template-columns: 1fr;
    }
}