body {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    font-family: system-ui, sans-serif;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    padding: 2rem 0;
}

.tool-card {
    padding: 2rem;
    border-radius: 8px;
    background: #f5f5f5;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s;
}

.tool-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.tool-card.external {
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    border: 1px solid #e0e0e0;
    position: relative;
}

.tool-card.external::after {
    content: '↗';
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.2rem;
    color: #666;
}

.tool-card.external:hover::after {
    color: #333;
}

.tool-card.disabled {
    pointer-events: none;
    opacity: 0.6;
    cursor: not-allowed;
}

.coming-soon {
    display: inline-block;
    background: #666;
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8em;
    margin-top: 8px;
}

.twitter-link {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 20px;
    text-decoration: none;
    color: #666;
    font-size: 14px;
    transition: all 0.2s ease;
}

.twitter-link:hover {
    background: rgba(0, 0, 0, 0.2);
    color: #333;
}