body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    height: 100vh;
    background: #000;

    overflow: hidden;
}

input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border: 2px solid #ef4444;
    border-radius: 4px;
    background-color: transparent;
    cursor: pointer;
    position: relative;
}

input[type="checkbox"]:checked {
    background-color: #ef4444;
}

input[type="checkbox"]:checked::after {
    content: "✔";
    font-size: 12px;
    color: white;
    position: absolute;
    top: -2px;
    left: 2px;
}

#tsparticles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}