html, body { 
    overflow-x: clip;
    height: 100%; 
    margin: 0;
    font-family: monospace;
    color: white;
    background-color: black;
}

body { 
    display: grid; 
    place-items: center; 
}



#fps-counter {
    position: fixed;
    top: 10px;
    left: 10px;
    padding: 4px 8px;
}



#ui-toggle:checked ~ #ui {
    transform: none;
}

#ui-btn {
    position: absolute;
    top: 10px;
    right: 20px;
    justify-self: end;
    padding: 4px 8px;
    cursor: pointer;
    z-index: 1000;
    transition: transform 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}

#ui-btn::after {
    content: "";
    position: absolute;
    top: 50%;
    right: -30px;
    background: currentColor;
    width: 30px;
    height: 1px;
}

#ui-btn:hover {
    transform: translateX(-10px);
}



#ui {
    display: flex;
    justify-content: center;
    align-items: center;
    position: fixed;
    padding: 60px;
    top: 0;
    right: 0;
    height: 100vh;
    background: rgba(16, 16, 16, 0.95);
    backdrop-filter: blur(10px);
    transform: translateX(100%);
    transition: transform 0.4s ease;
    box-sizing: border-box;
}

.ui-folder-name {
    margin-top: 40px;
    margin-bottom: 10px;
    font-size: large;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.ui-folder-name::before {
    content: "";
    position: absolute;
    top: 50%;
    left: -20px;
    background: currentColor;
    width: 10px;
    height: 1px;
}





#fluid-canvas { 
    display: block; 
    touch-action: none;
}









/* Make each folder's list a 2-column grid */
.ui-folder-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(100px, 1fr));
    gap: 20px 40px;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Inside each item: label + value on one row, slider on the next */
.ui-item {
    display: grid;
    grid-template-columns: 180px 1px;
    grid-template-rows: auto auto;
    grid-template-areas:
        "label value"
        "slider slider";
    align-items: center;
    gap: 4px 8px;
}

.ui-item label { 
    grid-area: label; 
}
.ui-item span  { 
    grid-area: value; 
    justify-self: end; 
    color: grey;
    transition: color 0.1s linear 0s;
}
.ui-item input[type="range"] { 
    grid-area: slider; 
    width: 100%; 
}

.ui-item:has(input[type="range"]:active) span, .ui-item:has(input[type="range"]:focus-visible) span { 
    color: white; 
}


.ui-item input[type="range"] {
    accent-color: rgb(255, 255, 255);
    height: 5px;
    margin-top: 10px;
}






/* Style for select dropdowns in the UI */
.ui-item select {
    grid-area: slider;
    width: 100%;
    padding: 6px 10px;
    font-family: inherit;
    font-size: 1em;
    background: #222;
    color: white;
    border: 1px solid #444;
    border-radius: 4px;
    outline: none;
    transition: border-color 0.2s;
    margin-top: 10px;
    box-sizing: border-box;
}

.ui-item select:focus, .ui-item select:hover {
    border-color: white;
}

/* Optional: style the dropdown arrow for consistency */
.ui-item select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg fill='white' height='16' viewBox='0 0 24 24' width='16' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 16px 16px;
    padding-right: 32px;
}





@media (max-width: 650px) {
    .ui-folder-list { 
        grid-template-columns: 1fr; 
    }
}