styles.css

* {
    margin: 0 0;
    padding: 0 0;
    box-sizing: border-box;
    font-family: 'Roboto Mono', monospace;
}

html, body {
    position: relative;
    width: 100%;
    height: 100%;
}

.container {
    display: flex;
    width: 100%;
    height: 100%;
    overflow: auto;
}

.logo {
    font-size: 20px;
    font-weight: bold;
}

.title {
    margin-top: 16px;
    font-size: 16px;
}

.input-container {
    display: flex;
    flex-direction: column;
    flex: 0 0 300px;
    padding: 16px;
    margin-right: 50px;
}

.query {
    flex: 1;
    width: 100%;
    height: 100%;
    margin-top: 20px;
    border: none;
    border: 1px solid #ccc;
    border-radius: 3px;
}

.update-btn {
    margin-top: 10px;
    padding: 10px 16px;
    background: none;
    border: 1px solid #2196F3;
    color: #2196F3;
    border-radius: 3px;
    cursor: pointer;
    font-weight: bold;
}

.graph {
    flex: 1
}

.node rect {
    cursor: pointer;
    fill: #fff;
    fill-opacity: 0.5;
    stroke: #3182bd;
    stroke-width: 1.5px;
}

.node text {
    font: 10px sans-serif;
    pointer-events: none;
}

.link {
    fill: none;
    stroke: #9ecae1;
    stroke-width: 1.5px;
}