* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    width: 100%;
    min-height: calc(300 * var(--lvh));
    overflow-x: clip;
    margin: 0;
    font-size:16px;
}
body {
    margin: 0;
    overflow-x: clip;
    width: 100%;
    margin: 0;
    padding: 0;
    height: fit-content;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4) no-repeat;
    font-family: "Pretendard", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
}
h3 {
    margin-top: 2rem;
}
p {
    margin-top: 0.5rem;
    line-height: 1.25;
}
li {
    list-style: none;
    padding-left: 0.5rem;
}
section {
    width: fit-content;
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding: 0 1rem;
}
section.active {
    width: 100%;
    padding: 1rem;
    display: flex;
    gap:1rem;
    flex-direction: column;
}
section.active .item {
    --box-height: calc(var(--lvh) * 100);
    border-radius: 1rem;
    width: 100%;
    height: var(--box-height);
    background-color: rgba(0, 0, 0, 0.5);
    color:white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 600;
    position: relative;
    overflow: hidden;
}
section.active .item-image {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
}
section.active .item-image img {
    width: 120%;
    height: 120%;
    object-position: center;
    object-fit: cover;
}
.container {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 1rem;
}
.container .item {
    padding: 1rem;
    display: flex;
    align-items: flex-start;
    border: 2px solid #000;
    background: white;
    position: relative;
    line-height: 1;
    font-size: 0.75rem;
    width: fit-content;
    height: fit-content;
}
.container .item::before {
    margin-top: 0;
    font-size: 2rem;
    content: '⇧';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}
.container .item::after {
    margin-top: 0;
    font-size: 2rem;
    content: '⇩';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}
.container .item > div {
    font-style: italic;
    writing-mode: vertical-lr;
    width: fit-content;
    top: 100%;
    bottom: 1rem;
    left: 0;
    display: flex;
    align-items: center;
    gap:0.5rem;
    margin-top: 2rem;
    margin-bottom: 2rem;
    position: sticky;
}
.container .item > div > span {
    white-space: nowrap;
    font-weight: bold;
}
.container .item > div > span.item-height {
    font-weight: bold;
    color:red;
    display: flex;
    gap:0.25rem;
    flex-direction: column;
}
.toggle-box {
    margin-top: 0.5rem;
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
}
.toggle-box input[type="checkbox"] {
    position: relative;
    appearance: none;
    width: fit-content;
    min-width: 3rem;
    height: 1.25rem;
    background: #ccc;
    border-radius: 50px;
    box-shadow: inset 0 0 4px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: 0.2s quadratic-bezier(0.4, 0, 0.2, 1);
}
.toggle-box input:checked[type="checkbox"] {
    background: #7da6ff;
}
.toggle-box input[type="checkbox"]::after {
    position: absolute;
    content: "";
    width: 1.5rem;
    height: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    left: 0;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
    transition: 0.3s;
}
.toggle-box input:checked[type="checkbox"]::after {
    left: calc(100% - 1.5rem);
}
body.polyfill-off {
    --fvh: 1dvh;
    --lvh: 1lvh;
    --svh: 1svh;
}
body.polyfill-off #log-container {
    display: none !important;
}
button {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    box-shadow: none;
    outline: none;
    font: inherit;
    color: inherit;
    cursor: pointer;
}