body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
}
.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}
.tabs {
    display: flex;
    background: #333;
    color: white;
}
.tab {
    flex: 1;
    padding: 1em;
    text-align: center;
    cursor: pointer;
}
.tab.active {
    background: #666;
}
.input-area {
    padding: 2em;
    text-align: center;
}
.results {
    flex: 1;
    padding: 2em;
    overflow-y: auto;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1em;
}
th,
td {
    border: 1px solid #ccc;
    padding: 0.5em;
    text-align: center;
}