html, body {
    height: 100%;
    width: 100%;
    margin: 0;
    background-color: #f8f9fa;
}

.main {
    min-height: 100%;
    width: 100%;
    font-family: sans-serif;
    display: flex;
    align-items: center;
    flex-direction: column;
    padding-top: 40px;
}

.option-container {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 12px;
}

.slider-container {
    display: flex;
    flex-direction: column;
    width: 350px;
}

hr {
    width: 90%;
    max-width: 900px;
    margin: 25px 0;
}

.main-container {
    display: flex;
    justify-content: center;
    width: 80%;
    max-width: 800px;
}

.display-container {
    width: 75%;
    aspect-ratio: 1 / 1;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    background: white;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

#calculator {
    width: 100%;
    height: 100%;
}

.step-size {
    width: 150px !important;
}