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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px;
    text-align: center;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.1em;
    opacity: 0.9;
}

main {
    padding: 40px;
}

section {
    margin-bottom: 40px;
}

h2 {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 1.5em;
}

.input-group {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.input-group label {
    font-weight: 600;
    min-width: 150px;
}

.input-group input {
    flex: 1;
    min-width: 200px;
    padding: 10px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 1em;
}

.input-group input:focus {
    outline: none;
    border-color: #667eea;
}

button {
    padding: 10px 20px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1em;
    font-weight: 600;
    transition: all 0.3s ease;
}

button:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

button:active {
    transform: translateY(0);
}

.btn-primary {
    margin-right: 10px;
    margin-bottom: 10px;
}

.status {
    margin-top: 20px;
    padding: 15px;
    border-radius: 6px;
    font-weight: 600;
}

.status.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.status.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.response {
    margin-top: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-left: 4px solid #667eea;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    overflow-x: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.data-list {
    display: grid;
    gap: 15px;
}

.data-item {
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #667eea;
    transition: all 0.3s ease;
}

.data-item:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.data-item h3 {
    color: #667eea;
    margin-bottom: 10px;
}

.info {
    color: #666;
    font-style: italic;
    padding: 20px;
    text-align: center;
}

footer {
    background: #f8f9fa;
    padding: 20px;
    text-align: center;
    color: #666;
    border-top: 1px solid #e0e0e0;
}

@media (max-width: 768px) {
    .container {
        border-radius: 0;
    }
    
    header h1 {
        font-size: 2em;
    }
    
    main {
        padding: 20px;
    }
    
    .input-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .input-group label {
        min-width: auto;
    }
}