/* Expression builder (/expressions/): builds on /demo/demo.css (tokens, cards, buttons, code editor); only the builder's own parts here */
.xb{padding:16px 20px 18px}
.xb-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:18px;align-items:start}
.xb-ed,.xb-out{display:flex;flex-direction:column;gap:10px;min-width:0}
.xb-out{position:sticky;top:80px}
/* expression editor: the demo's textarea-over-highlight, wrapping instead of scrolling sideways */
.ce.xce{height:150px;min-height:96px}
.xce .ce-hl,.xce .ce-ta{white-space:pre-wrap;overflow-wrap:anywhere;font-size:14px}
.xce .ce-hl>code{width:auto;min-width:0}
.xce .ce-hl{overflow:hidden}
.xce .ce-hl,.xce .ce-ta{scrollbar-gutter:stable;overflow-y:auto}
.xce .ce-hl{overflow-y:hidden}
mark.xmark{background:rgba(239,68,68,.45);color:#fff;border-bottom:2px solid #f87171;border-radius:2px}
.tk-s{color:#c3e88d}.tk-p{color:#89ddff}.tk-n{color:#f9a07e}.tk-b{color:#c792ea}.tk-k{color:#ffcb6b}.tk-v{color:#82aaff}
.xopts>label{flex:1 1 180px}
.xopts>label input{width:100%}
.xnow{display:flex;gap:6px;align-items:stretch}
.xnow input{flex:1;min-width:0}
textarea.xdata{width:100%;font:400 13px/1.5 "Roboto Mono",ui-monospace,monospace;resize:vertical;min-height:160px;white-space:pre;overflow:auto}
.ed-head .xtools{display:flex;flex-wrap:wrap;gap:6px}
/* results */
#xOut{display:flex;flex-direction:column;gap:8px;transition:opacity .15s}
#xOut.stale{opacity:.5}
.xres{border:1px solid var(--line);border-radius:12px;padding:10px 12px;background:var(--bg)}
.xres.bad{border-color:#dc2626;background:color-mix(in srgb,#dc2626 6%,var(--panel))}
.xres-h{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px;margin-bottom:6px}
.xres-n{font-weight:500;color:var(--ink);font-size:.9rem}
.xres-v{display:block;font:500 1.15rem/1.45 "Roboto Mono",ui-monospace,monospace;color:var(--ink);white-space:pre-wrap;overflow-wrap:anywhere}
.xres-v.empty{color:var(--muted);font-style:italic;font-weight:400}
.xres-err{margin:0;font:400 .92rem/1.5 "Roboto Mono",ui-monospace,monospace;color:#b91c1c;overflow-wrap:anywhere}
:root[data-theme="dark"] .xres-err{color:#fca5a5}
.rb{display:inline-flex;align-items:center;padding:2px 10px;border-radius:999px;font:500 .78rem/1.5 Roboto,system-ui,sans-serif;background:var(--soft);color:var(--ink);white-space:nowrap}
.rb.info{background:#dbeafe;color:#1e40af}.rb.bad{background:#fee2e2;color:#991b1b}
:root[data-theme="dark"] .rb.info{background:rgba(59,130,246,.2);color:#93c5fd}
:root[data-theme="dark"] .rb.bad{background:rgba(239,68,68,.18);color:#fca5a5}
.xprev{display:flex;flex-direction:column;gap:8px}
.xprev[hidden]{display:none}
.xprev .xpimg{display:flex;justify-content:center;padding:12px;border:1px solid var(--line);border-radius:12px;background:repeating-conic-gradient(rgba(127,127,127,.08) 0 25%,transparent 0 50%) 0 0/16px 16px}
.xprev img{background:#fff;box-shadow:0 2px 12px rgba(0,0,0,.18);max-width:100%;height:auto}
pre.xcode{margin:0;padding:10px 12px;border-radius:10px;background:var(--code-bg);border:1px solid var(--code-line);color:#dbe2f0;font:400 12.5px/1.5 "Roboto Mono",ui-monospace,monospace;white-space:pre-wrap;overflow-wrap:anywhere;max-height:240px;overflow:auto}
.xuse{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 8px;align-items:center}
.xuse h3{grid-column:1/-1;margin:6px 0 0}
.xuse .btn{align-self:start}
/* function list */
.xfn-head{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center;justify-content:space-between}
.xfn-head input{flex:0 1 280px;min-width:0}
#xFnList{columns:3 280px;column-gap:18px;margin-top:6px}
.xfn-g{break-inside:avoid;margin-bottom:10px}
.xfn-g[hidden],.xfn[hidden],.xfn-none[hidden]{display:none}
.xfn-g h3{margin:8px 0 4px}
.xfn-l{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.xfn{display:flex;align-items:flex-start;gap:6px}
.xfn-b{flex:1;min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:1px;text-align:left;border:1px solid transparent;border-radius:8px;padding:5px 8px;background:none;color:var(--text);cursor:pointer;font:inherit;min-height:44px}
.xfn-b:hover{border-color:var(--line);background:var(--bg)}
.xfn-b code{font:500 .86rem/1.4 "Roboto Mono",ui-monospace,monospace;color:var(--em);overflow-wrap:anywhere}
.xfn-d{font-size:.82rem;color:var(--muted);line-height:1.35}
.xfn-doc{flex:none;font-size:.78rem;padding:6px 4px;min-height:32px}
.xex-g{margin-bottom:8px}
.xex-g h3{margin:8px 0 6px}
.chips{display:flex;flex-wrap:wrap;gap:6px 8px;align-items:center}
.chips .btn[aria-pressed=true]{border-color:var(--em);color:var(--em)}
.uselinks{margin:0}
@media (max-width:900px){
  .xb-grid{grid-template-columns:minmax(0,1fr)}
  .xb-out{position:static}
}
@media (max-width:600px){
  .xb{padding:14px 12px}
  .xres-v{font-size:1.02rem}
  .xuse{grid-template-columns:minmax(0,1fr)}
}