/* Same dark palette and native controls as the adjacent rule builder; no remote assets. */
:root{color-scheme:dark;--paper:#15191e;--surface:#1d232b;--input:#12171d;--ink:#e3e9ef;--muted:#a6b3bf;--line:#3b4754;--accent:#9ecfc4;--focus:#83b9ef;--error:#ffada6;--warning:#f2ce83;font:16px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink)}[hidden]{display:none!important}header{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;background:var(--surface);padding:1rem max(1rem,calc((100vw - 80rem)/2));border-bottom:1px solid var(--line)}header span,.hint,footer{color:var(--muted)}a{color:var(--accent)}main{max-width:80rem;margin:auto;padding:1.5rem 2rem 3rem}h1{font-size:clamp(1.6rem,4vw,2rem);letter-spacing:-.03em;line-height:1.3;margin-bottom:.5rem}h2{font-size:1.2rem;margin:0 0 1.1rem}h3{font-size:1rem;margin:.1rem 0 .4rem}p{margin:.7rem 0 1rem}.intro{color:var(--accent)}section{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:1.4rem;margin-top:1.5rem;min-width:0}label{display:block;font-weight:650;margin-top:1rem}input,select,textarea,button{font:inherit;max-width:100%;min-width:0}input,select,textarea{display:block;width:100%;margin-top:.4rem;padding:.65rem .75rem;background:var(--input);color:var(--ink);border:1px solid var(--line);border-radius:5px;min-height:44px}textarea,pre{font: .86rem/1.65 ui-monospace,SFMono-Regular,Consolas,monospace}textarea{resize:vertical}button{border:1px solid var(--line);border-radius:5px;min-height:44px;padding:.6rem .85rem;background:var(--surface);color:var(--ink);cursor:pointer;margin:.4rem .4rem .4rem 0}button:hover:not(:disabled){border-color:var(--accent);background:var(--input)}button.primary{background:var(--accent);color:var(--paper);font-weight:650}button:disabled{opacity:.45;cursor:not-allowed}:focus-visible{outline:3px solid var(--focus);outline-offset:3px}.hint{font-size:.88rem}.required{font-weight:400;color:var(--muted)}details{margin:1rem 0}summary{cursor:pointer;min-height:44px;padding:.5rem 0}.options,.comparison{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1rem}.options>div,.comparison>div{min-width:0}.status{padding:.8rem 1rem;border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:4px}.status.error{border-color:var(--error);color:var(--error)}.status.warning{border-color:var(--warning)}.result{border:1px solid var(--line);border-left:4px solid var(--accent);padding:1rem;border-radius:5px;margin:1rem 0}.result.error{border-left-color:var(--error)}.result.legacy,.result.blank{border-left-color:var(--warning)}.result.error h3{color:var(--error)}.result.legacy h3,.result.blank h3{color:var(--warning)}.result p{font-size:.9rem}.comparison strong{font-size:.85rem;color:var(--muted)}pre{margin:.4rem 0 0;background:var(--input);padding:.75rem;border:1px solid var(--line);border-radius:4px;white-space:pre-wrap;overflow-wrap:anywhere;min-height:3rem}footer{font-size:.85rem;margin-top:2rem}noscript{display:block;color:var(--error);border:1px solid;padding:1rem}
@media(max-width:720px){main{padding:1rem}section{padding:1rem}.options,.comparison{grid-template-columns:minmax(0,1fr)}header{padding:1rem}button{width:100%;margin-right:0}h1{margin-top:.5rem}}
@media(prefers-reduced-motion:no-preference){button{transition:background .12s,border-color .12s}}
/* Keep complete lists together, with the detailed entry review below. */
.list-workspace{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1.5rem;align-items:stretch;margin-top:1.5rem}.list-workspace>section{margin-top:0}.format-example{border-left:3px solid var(--line);padding-left:.8rem;margin:1rem 0}.format-example h3{font-size:.85rem;color:var(--muted)}.format-example pre{margin:.4rem 0;white-space:pre-wrap;overflow-wrap:anywhere;font:.82rem/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--accent)}.format-example .hint{margin:.4rem 0}.export-options{margin:.7rem 0}.export-options summary{color:var(--muted)}@media(max-width:900px){.list-workspace{grid-template-columns:minmax(0,1fr)}}
/* Secondary metadata belongs in the header, not above the workbench. */
.backup-reminder{padding:.8rem 1rem;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:5px;font-size:1rem}
.tool-versions:not([open]) .version-menu{display:none}
:root[data-theme=light]{color-scheme:light;--paper:#f1f4f5;--surface:#fff;--input:#f7f9fa;--ink:#1f2b32;--muted:#526370;--line:#b5c2cc;--accent:#23685d;--focus:#146ab3;--error:#a52626;--warning:#765211}
button.primary:hover:not(:disabled),button.primary:active:not(:disabled){background:var(--accent);color:var(--paper);border-color:var(--accent)}
/* Shared tool drawer; identical in both portable tool stylesheets. */
.tool-navigation{margin:0;border:0;padding:0;background:none;flex:none}.tool-navigation[open]{margin:0;border:0;padding:0;background:none}.tool-navigation>summary{padding:.5rem;color:var(--accent);font-weight:650;list-style:none;min-height:44px}.tool-navigation>summary::-webkit-details-marker{display:none}.tool-navigation:not([open])>.tool-sidebar,.tool-navigation:not([open])>.tool-backdrop{display:none}
.tool-navigation .tool-backdrop{position:fixed;inset:0;z-index:39;background:#0007;border:0;border-radius:0;margin:0;padding:0;width:100%;height:100%;max-width:none}.tool-navigation .tool-backdrop:hover:not(:disabled){background:#0007}
.tool-sidebar{position:fixed;inset:0 auto 0 0;z-index:40;width:19rem;max-width:calc(100vw - 2rem);overflow:auto;padding:1rem;background:var(--surface);color:var(--ink);border-right:1px solid var(--line);box-shadow:.5rem 0 2rem #0005}.tool-sidebar h2{margin:1rem 0}.tool-sidebar a{display:block;min-height:44px;padding:.7rem;border:1px solid transparent;border-radius:5px;text-decoration:none;color:var(--ink)}.tool-sidebar a:hover,.tool-sidebar a:focus-visible{background:var(--input);color:var(--accent);border-color:var(--accent)}.tool-sidebar a[aria-current=page]{background:var(--input);color:var(--accent);border-color:var(--accent);font-weight:650}.tool-sidebar .close-tools{width:auto;margin:0}
.tool-versions{position:relative;margin:0;flex:none}.tool-versions summary{padding:.5rem;min-height:44px;color:var(--accent)}.version-menu{position:absolute;right:0;top:100%;z-index:20;width:24rem;max-width:calc(100vw - 2rem);max-height:75vh;overflow:auto;padding:1rem;background:var(--surface);border:1px solid var(--line);border-radius:6px;box-shadow:0 .5rem 1.5rem #0006;font-size:.88rem}.version-menu label{display:block;font-weight:650;margin-top:.7rem}.version-menu label:first-child{margin-top:0}.version-menu p{color:var(--muted)}