.vh-wrapper {max-width:600px;margin:20px auto;padding:20px;border:1px solid #ccc;border-radius:12px;background:#fff;box-shadow:0 3px 8px rgba(0,0,0,.1);}
.vh-form label {display:block;margin-bottom:10px;font-weight:600;}
.vh-form input {width:100%;padding:8px;margin-top:4px;border:1px solid #aaa;border-radius:8px;}
.vh-form button {margin-top:10px;background:#006400;color:#fff;padding:10px 20px;border:none;border-radius:8px;cursor:pointer;}
.vh-form button:hover {background:#228B22;}
.vh-result {margin-top:20px;padding:15px;background:#f9f9f9;border-radius:10px;}
.vh-diamond-grid {display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,1fr);gap:4px;width:300px;height:300px;margin:auto;position:relative;}
.vh-house {display:flex;flex-direction:column;justify-content:center;align-items:center;border:1px solid #555;font-size:12px;text-align:center;padding:4px;background:#fff;}