:root {
    --bg: #ffffff;
    --fg: #000000;
    --fg-muted: #888888;
    --border: #888888;
    --border-hover: #333333;
    --holder-border: #cccccc;
    --link: #0066cc;
    --button-bg: transparent;
    --button-fg: #000000;
    --scrollbar-track: #d0d0d0;
    --scrollbar-thumb: #888888;
    --scrollbar-thumb-hover: #666666;
    --scrollbar-thumb-active: #555555;
    --input-bg: #ffffff;
    --input-fg: #000000;
    --input-border: #888888;
    --checker-a: #e0e0e0;
    --checker-b: #f5f5f5;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #1a1a1a;
        --fg: #e0e0e0;
        --fg-muted: #888888;
        --border: #555555;
        --border-hover: #cccccc;
        --holder-border: #444444;
        --link: #6cb4ee;
        --button-bg: transparent;
        --button-fg: #e0e0e0;
        --scrollbar-track: #2a2a2a;
        --scrollbar-thumb: #666666;
        --scrollbar-thumb-hover: #888888;
        --scrollbar-thumb-active: #999999;
        --input-bg: #2a2a2a;
        --input-fg: #e0e0e0;
        --input-border: #555555;
        --checker-a: #222222;
        --checker-b: #2a2a2a;
    }
}

:root[data-theme="dark"] {
    --bg: #1a1a1a;
    --fg: #e0e0e0;
    --fg-muted: #888888;
    --border: #555555;
    --border-hover: #cccccc;
    --holder-border: #444444;
    --link: #6cb4ee;
    --button-bg: transparent;
    --button-fg: #e0e0e0;
    --scrollbar-track: #2a2a2a;
    --scrollbar-thumb: #666666;
    --scrollbar-thumb-hover: #888888;
    --scrollbar-thumb-active: #999999;
    --input-bg: #2a2a2a;
    --input-fg: #e0e0e0;
    --input-border: #555555;
    --checker-a: #222222;
    --checker-b: #2a2a2a;
}

body {
    margin: 0;
    font-family: sans-serif;
    background: var(--bg);
    color: var(--fg);
}

a {
    font-weight: bold;
    text-decoration: none;
    color: var(--link);
}

h1 {
    font-family: 'Special Elite',sans-serif;
    font-size: 400%;
    font-weight: normal;
    padding-top: 32px;
}

.footer {
    padding: 16px;
}

#holder {
    background-color: var(--checker-b);
    background-image:
        linear-gradient(45deg, var(--checker-a) 25%, transparent 25%, transparent 75%, var(--checker-a) 75%),
        linear-gradient(45deg, var(--checker-a) 25%, transparent 25%, transparent 75%, var(--checker-a) 75%);
    background-size: 16px 16px;
    background-position: 0 0, 8px 8px;
    border: 4px dashed var(--holder-border);
    border-radius: 4px;
    margin-bottom: 16px;
    min-height: 240px;
    text-align: center;
    vertical-align: middle;
    display: flex;
    overflow: hidden;
    position: relative;
}

#holder #previewCanvas {
    flex: 0 0 auto;
}

#holder .custom-scrollbar {
    margin-left: auto;
}
#holder.hover {
    border: 4px dashed var(--border-hover);
}

#drophint {
    font-family: 'Special Elite',sans-serif;
    padding-top: 84px;
    width: 100%;
    font-size: 300%;
    color: var(--fg-muted);
    text-align: center;
    position: absolute;
    top: 0;
    left: 0;
}

#previewCanvas {
    image-rendering: pixelated;
    transform-origin: left top;
}

.centered {
    margin: auto;
    text-align: center;
}

.hidden {
    display: none;
}

.settingscontainer {
    margin: 16px;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 8px;
}

.topcontainer {
    margin: 16px;
    padding: 8px;
}

.status {
    font-weight: bold;
    border: 1px solid var(--border);
    border-radius: 8px;
    margin: 16px;
    padding: 16px;
}

.previewcontainer {
    padding: 8px;
}

.buttonLink {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px;
}

.buttonLink a {
    font-weight: normal;
    color: var(--button-fg);
}

.previewImage {
    max-width: 400px;
    max-height: 300px;
    vertical-align: middle;
}

.custom-scrollbar {
    width: 16px;
    background: var(--scrollbar-track);
    position: relative;
    cursor: default;
    flex-shrink: 0;
    display: none;
}

.custom-scrollbar-thumb {
    width: 100%;
    background: var(--scrollbar-thumb);
    border-radius: 3px;
    position: absolute;
    top: 0;
    min-height: 20px;
    cursor: grab;
}

.custom-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

.custom-scrollbar-thumb:active,
.custom-scrollbar-thumb.dragging {
    background: var(--scrollbar-thumb-active);
    cursor: grabbing;
}

select, input[type="number"] {
    background: var(--input-bg);
    color: var(--input-fg);
    border: 1px solid var(--input-border);
    border-radius: 4px;
    padding: 2px 4px;
}

.theme-toggle {
    position: absolute;
    top: 8px;
    right: 8px;
    display: flex;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.theme-toggle button {
    font-size: 14px;
    padding: 4px;
    border: none;
    background: var(--input-bg);
    color: var(--input-fg);
    cursor: pointer;
    opacity: 0.4;
    transition: opacity 0.15s, background 0.15s;
}

.theme-toggle button:not(:last-child) {
    border-right: 1px solid var(--border);
}

.theme-toggle button:hover {
    opacity: 0.7;
}

.theme-toggle button.active {
    opacity: 1;
    background: var(--border);
}