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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    background: white;
    border-radius: 20px;
    padding: 40px;
    max-width: 600px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

h1 {
    color: #333;
    margin-bottom: 20px;
    font-size: 2.5rem;
    text-align: center;
}

p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 30px;
    text-align: center;
}

.api-button {
    width: 100%;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: bold;
    color: white;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-bottom: 30px;
}

.api-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.4);
}

.api-button:active {
    transform: translateY(0);
}

.api-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.response-box {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
    border-left: 4px solid #667eea;
}

.response-label {
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
}

.response-content {
    color: #555;
    font-family: 'Courier New', monospace;
    background: white;
    padding: 15px;
    border-radius: 5px;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.status {
    text-align: center;
    padding: 10px;
    border-radius: 5px;
    font-weight: bold;
    transition: all 0.3s;
}

.status.loading {
    background: #fff3cd;
    color: #856404;
}

.status.success {
    background: #d4edda;
    color: #155724;
}

.status.error {
    background: #f8d7da;
    color: #721c24;
}