* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    padding: 20px;
}

.audio-widget {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 30px;
}

h2 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
    font-size: 24px;
}

h3 {
    color: #555;
    margin-bottom: 15px;
    font-size: 18px;
}

.recording-section,
.upload-section,
.preview-section,
.submit-section {
    margin-bottom: 30px;
    padding: 20px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    background-color: #fafafa;
}

.btn {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 12px 24px;
    margin: 8px 4px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

.btn:hover:not(:disabled) {
    background-color: #45a049;
}

.btn:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

.btn-record {
    background-color: #f44336;
}

.btn-record:hover:not(:disabled) {
    background-color: #da190b;
}

.btn-stop {
    background-color: #ff9800;
}

.btn-stop:hover:not(:disabled) {
    background-color: #f57c00;
}

.btn-upload {
    background-color: #2196F3;
    display: inline-block;
}

.btn-upload:hover {
    background-color: #1976D2;
}

.btn-submit {
    background-color: #4CAF50;
    font-size: 18px;
    padding: 15px 30px;
    width: 100%;
}

.file-input {
    display: none;
}

.file-name {
    margin-top: 10px;
    font-style: italic;
    color: #666;
}

.status {
    margin-top: 10px;
    padding: 8px;
    border-radius: 4px;
    font-weight: bold;
}

.status.recording {
    background-color: #ffecb3;
    color: #f57c00;
}

.status.success {
    background-color: #c8e6c9;
    color: #2e7d32;
}

.status.error {
    background-color: #ffcdd2;
    color: #c62828;
}

audio {
    width: 100%;
    margin-top: 10px;
}

@media (max-width: 600px) {
    .audio-widget {
        margin: 10px;
        padding: 20px;
    }
    
    .btn {
        width: 100%;
        margin: 5px 0;
    }
}