.sbva-wrap {
    border: 1px solid #d0d7de;
    border-radius: 12px;
    padding: 16px;
    max-width: 900px;
    background: linear-gradient(135deg, #f8fbff 0%, #eef6ff 100%);
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.sbva-header h3 {
    margin: 0 0 6px;
}

.sbva-header p {
    margin: 0 0 14px;
    color: #425466;
}

.sbva-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 10px;
}

.sbva-chat-log {
    border: 1px solid #c5d2e0;
    border-radius: 10px;
    background: #ffffff;
    min-height: 220px;
    max-height: 420px;
    overflow: auto;
    padding: 12px;
    margin-bottom: 12px;
}

.sbva-msg {
    margin-bottom: 10px;
    padding: 8px 10px;
    border-radius: 8px;
}

.sbva-user {
    background: #e6f4ea;
}

.sbva-assistant {
    background: #eef2ff;
}

.sbva-prompt-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px;
    margin-bottom: 10px;
}

.sbva-prompt-row textarea {
    width: 100%;
    resize: vertical;
}

.sbva-quick-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sbva-file-list {
    margin-bottom: 12px;
}

.sbva-file-item {
    background: #f4f7fa;
    border: 1px solid #d8e1ea;
    border-radius: 6px;
    padding: 6px 8px;
    margin-bottom: 6px;
}

.sbva-progress {
    border: 1px solid #d0d7de;
    border-radius: 12px;
    padding: 14px;
    background: #fff;
    max-width: 700px;
}

@media (max-width: 700px) {
    .sbva-prompt-row {
        grid-template-columns: 1fr;
    }
}