* {
    font-family: "Anonymous Pro", monospace;
    color: #F6F6F6;
}

body {
    background-color: #262626;
}

.heading {
    text-align: center;
    font-size: 1.5rem;
}

.main-container {
    display: flex;
}

.grid {
    width: 50%;
    height: 70vh;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.gridbox {
    display: flex;
    flex-direction: column;
    max-width: 35vmax;
    max-height: 35vmax;
    border: 1px solid #000;
    overflow: hidden;         /* Prevent units from spilling out */
    margin: auto;
}

.grid-row {
    display: flex;
    flex: 1;
    min-height: 0;
}

.grid-unit {
    flex: 1;
    border: 1px solid #e3e0e0;
    background-color: #ffffff;
    width: 67px;
    height: 67px;
    aspect-ratio: 1/1;
    min-width: 0;
    box-sizing: border-box;
}

.options {
    width: 50%;
    font-size: 1.5rem;
    padding: 20px;
}

.option-div {
    margin-bottom: 30px;
}

label {
    font-size: 2rem;
    font-weight: bold;
}

input[type="checkbox"] {
    transform: scale(1.5);
}

.clear-btn {
    background-color: #414141;
    border-radius: 10px;
    padding: 8px 16px;
    font-size: 1.2rem;
    margin-top: 150px;
}