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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    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);
    padding: 30px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
}

h1 {
    color: #333;
    font-size: 2.5em;
    margin-bottom: 10px;
}

header p {
    color: #666;
    font-size: 1.1em;
}

h2 {
    color: #444;
    font-size: 1.5em;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #667eea;
}

.status {
    text-align: center;
    margin-bottom: 20px;
}

.status span {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9em;
}

.status-connected {
    background: #10b981;
    color: white;
}

.status-disconnected {
    background: #ef4444;
    color: white;
}

.section {
    margin-bottom: 30px;
    padding: 20px;
    background: #f9fafb;
    border-radius: 8px;
}

.controls {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

input[type="text"],
input[type="number"],
select {
    flex: 1;
    min-width: 150px;
    padding: 10px 15px;
    border: 2px solid #e5e7eb;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
    outline: none;
    border-color: #667eea;
}

button {
    padding: 10px 20px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}

button:hover {
    background: #5568d3;
}

button:active {
    transform: scale(0.98);
}

.examples {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.examples button {
    flex: 1;
    min-width: 200px;
    background: #764ba2;
}

.examples button:hover {
    background: #653a8a;
}

.output {
    background: #1f2937;
    color: #10b981;
    padding: 20px;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.6;
    max-height: 400px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.output:empty::before {
    content: "Output will appear here...";
    color: #6b7280;
}

.log-success {
    color: #10b981;
}

.log-error {
    color: #ef4444;
}

.log-info {
    color: #60a5fa;
}

.log-command {
    color: #fbbf24;
}

@media (max-width: 768px) {
    .container {
        padding: 20px;
    }

    h1 {
        font-size: 2em;
    }

    .controls {
        flex-direction: column;
    }

    input[type="text"],
    input[type="number"],
    select,
    button {
        width: 100%;
    }
}