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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

header {
    text-align: center;
    margin-bottom: 30px;
}

h1 {
    color: #333;
    margin-bottom: 10px;
}

.subtitle {
    color: #666;
    font-size: 14px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

input, select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

input:focus, select:focus {
    outline: none;
    border-color: #667eea;
}

.recording-section {
    text-align: center;
    margin: 30px 0;
}

.btn {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
}

.btn-primary.recording {
    background: #e74c3c;
    animation: pulse 1.5s infinite;
}

.btn-success {
    background: #2ecc71;
    color: white;
    margin-top: 20px;
}

.btn-success:hover {
    background: #27ae60;
}

.btn-secondary {
    background: #95a5a6;
    color: white;
}

.status {
    margin-top: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.recording-indicator {
    width: 12px;
    height: 12px;
    background: #e74c3c;
    border-radius: 50%;
    animation: blink 1s infinite;
}

#timer {
    font-size: 20px;
    font-weight: 600;
    color: #333;
}

.result {
    text-align: center;
}

.result h2 {
    color: #2ecc71;
    margin-bottom: 20px;
}

#result-content {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    text-align: left;
    margin-bottom: 20px;
}

.loading {
    text-align: center;
    padding: 40px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

.hidden {
    display: none;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 480px) {
    .container {
        padding: 20px;
    }
    
    h1 {
        font-size: 24px;
    }
}