/* Scoped to the utility so encyclopedia pages retain their existing layout. */
main:has(.header-helper) { max-inline-size: 90rem; }
.header-helper { --helper-accent: var(--uchu-green-6); --helper-danger: var(--uchu-red-6); --helper-radius: .75rem; display: grid; gap: 1.25rem; padding-block-end: 3rem; font-family: var(--font-family-san-serif); font-size: 1rem; line-height: 1.45; accent-color: var(--helper-accent); }

/* Shared text: the site's serif paragraph rule and article-sized margins are too loud for tool help. */
.header-helper p { margin: .5rem 0 0; font-family: inherit; font-size: .875rem; line-height: 1.5; color: var(--color-muted); }
.header-helper label { font-weight: 600; }
.header-helper label:has(> input[type=checkbox]) { display: inline-flex; gap: .4rem; align-items: center; font-weight: 400; cursor: pointer; }
.header-helper small { font-size: .8em; font-weight: 400; color: var(--color-muted); }
.header-helper a:not(.button) { color: var(--color-hyperlinks); }
.header-helper :focus-visible { outline: 3px solid var(--color-hyperlinks); outline-offset: 2px; }
.header-helper [hidden] { display: none !important; }

/* Steps: cards whose title sits inside the card; steps unavailable until a picture is open are dimmed. */
.header-helper fieldset { min-inline-size: 0; margin: 0; border: 1px solid var(--color-border); border-radius: var(--helper-radius); padding: clamp(1rem, 2.5vw, 1.75rem); background: var(--color-background); box-shadow: 0 1px 2px #0000000d; transition: opacity .2s; }
.header-helper fieldset:disabled { opacity: .55; }
.header-helper legend { float: inline-start; inline-size: 100%; display: flex; gap: .75rem; align-items: center; margin-block-end: 1rem; padding: 0; font-family: var(--font-family-wide-grotesque); font-size: 1.25rem; font-weight: 800; letter-spacing: -.01em; }
.header-helper legend + * { clear: both; }
.header-helper .step { display: inline-grid; place-items: center; flex: none; inline-size: 2rem; block-size: 2rem; border-radius: 50%; background: var(--uchu-yin-8); color: var(--uchu-yang); font-size: 1rem; }

/* Controls */
.header-helper input:not([type=checkbox]):not([type=range]):not([type=file]), .header-helper select, .header-helper textarea { box-sizing: border-box; max-inline-size: 100%; padding: .55rem .7rem; border: 1px solid var(--color-border); border-radius: .5rem; background: var(--color-background); color: var(--color-foreground); font: inherit; }
.header-helper :is(input, select, textarea):hover:not(:disabled) { border-color: var(--uchu-yin-4); }
.header-helper input[aria-invalid=true] { border-color: var(--helper-danger); }
.header-helper button { --button-padding: .6em 1.15em; --button-font-size: .9375rem; }
.header-helper button:disabled { cursor: default; opacity: .5; }
.header-helper button:disabled:hover { background: var(--button-bg); border-color: var(--button-border-color); color: var(--button-color); }
.helper-row { display: flex; flex-wrap: wrap; gap: .5rem .75rem; align-items: center; }
.helper-row label { display: inline-flex; gap: .4rem; align-items: center; }
.helper-field { display: grid; gap: .35rem; align-content: start; }
.helper-field > input, .helper-field > select { inline-size: 100%; max-inline-size: 28rem; }
.helper-field > p { margin: 0; }

/* Status and errors */
.helper-status { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; justify-content: space-between; padding: .6rem .6rem .6rem 1rem; border-radius: 999px; background: var(--color-surface); }
.header-helper #HelperStatus { display: flex; gap: .6rem; align-items: center; margin: 0; font-size: .9375rem; color: var(--color-foreground); }
#HelperStatus::before { content: ""; flex: none; inline-size: .6rem; block-size: .6rem; border-radius: 50%; background: var(--helper-accent); }
.helper-status:has(#CancelOperation:not([hidden])) #HelperStatus::before { background: var(--uchu-yellow-5); animation: helper-pulse 1s ease-in-out infinite alternate; }
.header-helper:has(#HelperError:not([hidden])) #HelperStatus::before { background: var(--helper-danger); }
@keyframes helper-pulse { to { opacity: .3; } }
@media (prefers-reduced-motion: reduce) { #HelperStatus::before { animation: none !important; } }
#HelperError, #ArticleSlugError { padding: .75rem 1rem; border-inline-start: 4px solid var(--helper-danger); border-radius: .5rem; background: oklch(from var(--helper-danger) 96% .03 h); color: oklch(from var(--helper-danger) 40% c h); font-size: .9375rem; }
#ArticleSlugError { padding: .5rem .75rem; font-size: .875rem; }

/* Step 1: drop target. Drops are accepted anywhere in the helper; this makes the target obvious. */
.helper-drop { display: grid; gap: .6rem; justify-items: center; margin-block-end: 1.25rem; padding: clamp(1.25rem, 4vw, 2.5rem) 1rem; border: 2px dashed var(--color-border); border-radius: var(--helper-radius); background: var(--color-surface-alt); text-align: center; transition: border-color .15s, background-color .15s; }
.helper-drop > label { font-size: 1.05rem; }
.helper-drop > p { max-inline-size: 40rem; margin: 0; }
.header-helper[data-dragging] .helper-drop { border-color: var(--helper-accent); background: oklch(from var(--helper-accent) 96% .04 h); }
#SourceFile { max-inline-size: 100%; font: inherit; font-size: .9375rem; }
#SourceFile::file-selector-button { margin-inline-end: .75rem; padding: .55em 1.15em; border: 3px solid var(--uchu-yin-8); border-radius: 999px; background: var(--uchu-yin-8); color: var(--uchu-yang); font: inherit; font-weight: 700; cursor: pointer; }
#SourceFile:hover:not(:disabled)::file-selector-button { border-color: var(--uchu-green-6); background: var(--uchu-green-6); }
#SourceUrl { flex: 1 1 15rem; min-inline-size: 0; }
label[for=SourceUrl] { display: block; margin-block-end: .35rem; }

/* Step 2: editor and previews */
.helper-workspace { display: flex; flex-wrap: wrap; gap: 1.5rem 2rem; align-items: flex-start; }
.helper-editor { display: grid; gap: 1rem; flex: 2 1 36rem; min-inline-size: 0; }
.helper-editor > p { margin: 0; }
.helper-toolbar { display: flex; flex-wrap: wrap; gap: .5rem 1rem; align-items: center; justify-content: space-between; }
.header-helper #SourceInfo { margin: 0; font-variant-numeric: tabular-nums; color: var(--color-foreground); font-weight: 600; }
#Zoom { inline-size: 7rem; }
/* FitSurface subtracts 28px for this padding, so keep 14px per side and no border on the viewport box. */
.helper-viewport { overflow: auto; max-block-size: 65vh; padding: 14px; border-radius: var(--helper-radius); background: #1b1b1b repeating-conic-gradient(#232323 0 25%, #1b1b1b 0 50%) 0 0 / 20px 20px; }
.helper-surface { position: relative; inline-size: 100%; margin-inline: auto; overflow: clip; }
.helper-surface canvas { display: block; inline-size: 100%; block-size: auto; }
.helper-crop { position: absolute; box-sizing: border-box; border: 1px solid #fffc; cursor: move; touch-action: none; -webkit-user-select: none; user-select: none; box-shadow: 0 0 0 100vmax #000a; clip-path: inset(-100vmax);
	background: linear-gradient(90deg, transparent calc(100% / 3 - .5px), #fff5 0 calc(100% / 3 + .5px), transparent 0 calc(200% / 3 - .5px), #fff5 0 calc(200% / 3 + .5px), transparent 0), linear-gradient(transparent calc(100% / 3 - .5px), #fff5 0 calc(100% / 3 + .5px), transparent 0 calc(200% / 3 - .5px), #fff5 0 calc(200% / 3 + .5px), transparent 0); }
.helper-crop:focus-visible { outline-offset: 0; }
/* Corner brackets drawn on a 28px transparent hit area, overriding the site's pill button styling. */
.header-helper .helper-handle { --button-bg: transparent; --button-hover-bg: transparent; --button-border-color: transparent; position: absolute; inline-size: 28px; block-size: 28px; padding: 0; border: 0; border-radius: 0; background: transparent; touch-action: none; filter: drop-shadow(0 0 1.5px #000c); }
.header-helper .helper-handle:active { transform: none; }
.header-helper .helper-handle:focus { outline: none; }
.helper-handle:focus-visible::before { border-color: var(--uchu-yellow-4); }
.helper-handle::before { content: ""; position: absolute; inset: -1px; border: 0 solid #fff; }
.helper-handle[data-corner=NW] { inset: 0 auto auto 0; cursor: nwse-resize; }
.helper-handle[data-corner=NW]::before { border-block-start-width: 4px; border-inline-start-width: 4px; }
.helper-handle[data-corner=NE] { inset: 0 0 auto auto; cursor: nesw-resize; }
.helper-handle[data-corner=NE]::before { border-block-start-width: 4px; border-inline-end-width: 4px; }
.helper-handle[data-corner=SW] { inset: auto auto 0 0; cursor: nesw-resize; }
.helper-handle[data-corner=SW]::before { border-block-end-width: 4px; border-inline-start-width: 4px; }
.helper-handle[data-corner=SE] { inset: auto 0 0 auto; cursor: nwse-resize; }
.helper-handle[data-corner=SE]::before { border-block-end-width: 4px; border-inline-end-width: 4px; }
.helper-numbers { display: grid; grid-template-columns: repeat(auto-fit, minmax(6.5rem, 1fr)); gap: .75rem; }
.helper-numbers label { display: flex; flex-wrap: wrap; align-items: baseline; gap: .3rem .25rem; font-size: .875rem; }
.helper-numbers input { flex-basis: 100%; inline-size: 100%; font-variant-numeric: tabular-nums; }
.helper-preview-panel { flex: 1 1 24rem; min-inline-size: 0; padding: 1.25rem; border-radius: var(--helper-radius); background: var(--color-surface-alt); }
.helper-preview-panel h2 { margin: 0; font-family: inherit; font-size: .8125rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--color-muted); }
.helper-previews { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 1rem; margin-block: 1rem; }
.helper-previews figure { flex: 1 1 10rem; min-inline-size: 0; margin: 0; }
.helper-previews figure:first-child { flex: 0 1 8rem; }
.helper-previews figure:last-child { flex-basis: 100%; }
.helper-previews canvas { display: block; inline-size: 100%; border-radius: .4rem; background: var(--color-background); box-shadow: 0 0 0 1px var(--color-border), 0 4px 14px #0000001a; }
.helper-previews figcaption { margin-block-start: .4rem; text-align: center; font-size: .8125rem; color: var(--color-muted); }
.helper-toggles { display: flex; flex-wrap: wrap; gap: .4rem; }
.helper-toggles label { padding: .3rem .7rem; border: 1px solid var(--color-border); border-radius: 999px; background: var(--color-background); font-size: .875rem; }
.helper-toggles label:has(:checked) { border-color: var(--helper-accent); background: oklch(from var(--helper-accent) 96% .04 h); }

/* Step 3: export */
.helper-export { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr)); gap: 1.25rem 2rem; }
#Quality { flex: 1 1 10rem; max-inline-size: 20rem; }
#QualityValue { min-inline-size: 2.5ch; font-weight: 700; font-variant-numeric: tabular-nums; }
#OutputInfo { font-size: .875rem; color: var(--color-muted); }
#OutputInfo:empty { display: none; }
.helper-actions { margin-block: 1.5rem; padding-block: 1.25rem; border-block: 1px solid var(--color-border); }
#DownloadImage { font-size: .9375rem; }
.helper-markup { display: flex; flex-wrap: wrap; gap: .5rem; align-items: stretch; }
.header-helper #WikiText { flex: 1 1 20rem; min-inline-size: 0; font-family: ui-monospace, Consolas, monospace; font-size: .875rem; background: var(--color-surface-alt); resize: vertical; }