.bg-pattern {
        background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.3'%3E%3Ccircle cx='5' cy='5' r='2'/%3E%3Ccircle cx='35' cy='35' r='2'/%3E%3C/g%3E%3C/svg%3E");
    }
    .animate-fade-in {
        animation: fadeIn 1.2s ease-in-out;
    }
    @keyframes fadeIn {
        0% { opacity: 0; transform: translateY(30px); }
        100% { opacity: 1; transform: translateY(0); }
    }
    body {
        font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        background-color: white;
    }
    .square-card {
        width: 100%;
        min-height: 160px;
        height: auto;
        max-width: 180px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding: 1rem;
        margin: 0 auto;
    }
    
    @media screen and (min-width: 640px) {
        .square-card {
            width: 180px;
            height: 180px;
            padding: 1.5rem;
        }
    }
    .bg-primary-600 { background-color: #2563eb; } /* A professional blue */
    .bg-primary-700 { background-color: #1d4ed8; }
    .focus\:ring-primary-400:focus { box-shadow: 0 0 0 2px #60a5fa; }