* {
    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;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

h1 {
    padding: 30px 30px 20px;
    color: #333;
    border-bottom: 3px solid #667eea;
}

.tabs {
    display: flex;
    background: #f8f9fa;
    border-bottom: 2px solid #e0e0e0;
    padding: 0 30px;
}

.tab-button {
    background: none;
    border: none;
    padding: 15px 25px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    color: #666;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
}

.tab-button:hover {
    color: #333;
    background: #f0f0f0;
}

.tab-button.active {
    color: #667eea;
    border-bottom-color: #667eea;
}

.tab-content {
    position: relative;
}

.tab-pane {
    display: none;
    padding: 30px;
    animation: fadeIn 0.3s ease-in;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.command-item {
    background: #f8f9fa;
    border-left: 4px solid #667eea;
    padding: 15px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.command-item:hover {
    background: #f0f0f0;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.1);
    transform: translateX(5px);
}

.command-name {
    font-family: 'Courier New', monospace;
    font-weight: bold;
    color: #667eea;
    font-size: 14px;
    margin-bottom: 8px;
}

.command-description {
    color: #555;
    font-size: 14px;
    line-height: 1.5;
}

h2 {
    color: #333;
    margin-bottom: 15px;
}

p {
    color: #666;
    line-height: 1.7;
    margin-bottom: 10px;
}

strong {
    color: #667eea;
}