body {
    font-family: Arial, sans-serif;
    margin: 20px;
    max-width: 720px;
}

#status {
    padding: 8px 12px;
    background: #f0f4f8;
    border-radius: 6px;
    margin-bottom: 16px;
}

.panel {
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 12px;
}

.panel h2 {
    margin: 0 0 8px;
    font-size: 16px;
}

.panel label {
    display: block;
    margin: 8px 0 4px;
}

.panel input[type="range"] {
    width: 100%;
}

.panel .checkbox {
    display: block;
    margin: 8px 0;
}

.row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}

.row button {
    padding: 6px 14px;
    border: none;
    border-radius: 6px;
    background: #2563eb;
    color: #fff;
    cursor: pointer;
}

.row button:disabled {
    background: #94a3b8;
    cursor: default;
}

.ok { color: #16a34a; }
.err { color: #dc2626; }

#dialogs {
    max-height: 420px;
    overflow-y: auto;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 10px;
    margin-bottom: 12px;
}

.msg {
    margin-bottom: 8px;
    padding: 6px 10px;
    border-radius: 6px;
}

.msg.user {
    background: #e8f0fe;
}

.msg.assistant {
    background: #f1f5f9;
}

.who {
    font-weight: bold;
}

.time {
    color: #94a3b8;
    font-size: 12px;
    margin-left: 6px;
}

#chat-form {
    display: flex;
    gap: 8px;
}

#chat-form input {
    flex: 1;
    padding: 8px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
}

#chat-form button {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    background: #2563eb;
    color: #fff;
    cursor: pointer;
}

#chat-form button:disabled {
    background: #94a3b8;
    cursor: default;
}