body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

.messages {
    min-height: 50vh;
    max-height: 65vh;
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow-y: auto;
    background: #f9fafb;
}

.message {
    padding: 12px 14px;
    border-radius: 12px;
    white-space: pre-wrap;
    line-height: 1.5;
    background: #eef2ff;
    border: 1px solid #e0e7ff;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

.message:nth-child(even) {
    background: #f8fafc;
    border-color: #e2e8f0;
}

.message span {
    font-weight: 600;
    display: block;
    margin-bottom: 4px;
    color: #4b5563;
}

#chat-form textarea {
    resize: vertical;
}

.button-row {
    align-items: center;
}

.language-bar {
    justify-content: flex-end;
}

.icon-btn {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    font-size: 1.25rem;
}

.mic-btn.recording {
    color: #2f2c02;
    background: #AEF359;
    border-color: #99d84f;
}