/* SQL Practice Test styles. Generated from the standalone page (sql-practice-site/index.html):
   its inline <style> blocks moved here so the site CSP can stay strict (no inline styles). */
/* Base reset (was the inline <style> in <head>) */
:root{color-scheme:light;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;padding:0;font:14px -apple-system,BlinkMacSystemFont,sans-serif}
img{max-width:100%}
[hidden]{display:none!important}

/* Layout: workbench: question + editor + results, schema rail on the right.
   Look: matches the SQL Field Guide (Pierce Technical site theme: glass panels over soft glows, soft red accent), dark first, light mirrored. */
:root{
  --bg:#17131a; --panel:rgb(255 255 255 / .06); --panel-solid:rgb(255 255 255 / .09); --sunk:rgb(0 0 0 / .22); --line:rgb(255 255 255 / .14); --line-hi:rgb(255 255 255 / .20); --sheen:rgb(255 255 255 / .16);
  --fg:#f1eaec; --fg-soft:#d6ccd1; --muted:#a99da6;
  --accent:#f0727b; --accent-hover:#ff8f96; --accent-ink:#1a1218; --accent-soft:rgb(240 114 123 / .14); --accent-text:#f0727b;
  --beg:#6fcf97; --beg-soft:#16301f; --int:#e8b45a; --int-soft:#33270f; --adv:#ec8aa5; --adv-soft:#3a1823;
  --ok:#6fcf97; --ok-soft:#16301f; --bad:#ff7f7f; --bad-soft:rgb(255 127 127 / .12); --warn-soft:#33270f;
  --code-bg:#120f15; --code-fg:#ece4e8;
  --glow-1:rgb(240 114 123 / .40); --glow-2:rgb(139 92 246 / .34); --glow-3:rgb(56 189 248 / .20);
  --shadow:0 14px 34px -20px rgb(0 0 0 / .6);
  --select-bg:#241e27; --select-fg:#c9bfc4; --select-line:rgb(255 255 255 / .16); --option-hover:#33293a;
  --syn-clause:#c586c0; --syn-kw:#569cd6; --syn-fn:#dcdcaa; --syn-str:#ce9178; --syn-num:#b5cea8; --syn-com:#6a9955; --syn-op:#d4d4d4;
  --f-display:"Instrument Sans", "Segoe UI", system-ui, sans-serif;
  --f-body:"Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --f-mono:"JetBrains Mono", Consolas, "Cascadia Mono", monospace;
  color-scheme:dark;
}
@media (prefers-color-scheme: light){:root:not([data-theme="dark"]){
  --bg:#fbf7f6; --panel:rgb(255 255 255 / .55); --panel-solid:rgb(255 255 255 / .72); --sunk:rgb(60 30 45 / .05); --line:rgb(60 30 45 / .10); --line-hi:rgb(60 30 45 / .16); --sheen:rgb(255 255 255 / .95);
  --fg:#221a20; --fg-soft:#3d3238; --muted:#6b5f66;
  --accent:#c73c4a; --accent-hover:#a92f3c; --accent-ink:#ffffff; --accent-soft:rgb(199 60 74 / .09); --accent-text:#c73c4a;
  --beg:#2f7d4f; --beg-soft:#e3f2e8; --int:#a86a12; --int-soft:#f8ecd8; --adv:#9b3550; --adv-soft:#f6e1e7;
  --ok:#2f7d4f; --ok-soft:#e3f2e8; --bad:#c0352b; --bad-soft:rgb(192 53 43 / .09); --warn-soft:#f8ecd8;
  --glow-1:rgb(240 114 123 / .30); --glow-2:rgb(139 92 246 / .22); --glow-3:rgb(56 189 248 / .20);
  --shadow:0 14px 34px -20px rgb(90 40 60 / .18);
  --select-bg:#ffffff; --select-fg:#4a3f45; --select-line:rgb(60 30 45 / .18); --option-hover:#f4ecee;
  color-scheme:light}}
:root[data-theme="light"]{
  --bg:#fbf7f6; --panel:rgb(255 255 255 / .55); --panel-solid:rgb(255 255 255 / .72); --sunk:rgb(60 30 45 / .05); --line:rgb(60 30 45 / .10); --line-hi:rgb(60 30 45 / .16); --sheen:rgb(255 255 255 / .95);
  --fg:#221a20; --fg-soft:#3d3238; --muted:#6b5f66;
  --accent:#c73c4a; --accent-hover:#a92f3c; --accent-ink:#ffffff; --accent-soft:rgb(199 60 74 / .09); --accent-text:#c73c4a;
  --beg:#2f7d4f; --beg-soft:#e3f2e8; --int:#a86a12; --int-soft:#f8ecd8; --adv:#9b3550; --adv-soft:#f6e1e7;
  --ok:#2f7d4f; --ok-soft:#e3f2e8; --bad:#c0352b; --bad-soft:rgb(192 53 43 / .09); --warn-soft:#f8ecd8;
  --glow-1:rgb(240 114 123 / .30); --glow-2:rgb(139 92 246 / .22); --glow-3:rgb(56 189 248 / .20);
  --shadow:0 14px 34px -20px rgb(90 40 60 / .18);
  --select-bg:#ffffff; --select-fg:#4a3f45; --select-line:rgb(60 30 45 / .18); --option-hover:#f4ecee;
  color-scheme:light}

*{box-sizing:border-box}
body{background:var(--bg);color:var(--fg);font:15px/1.55 var(--f-body);padding-left:max(clamp(1.5rem, 6vw, 2.5rem),env(safe-area-inset-left,0px));padding-right:max(clamp(1.5rem, 6vw, 2.5rem),env(safe-area-inset-right,0px));padding-block:20px 48px} /* side margins match the main site: 24px on phones, up to 40px on desktop */
.wrap{max-width:1240px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr);gap:18px} /* minmax(0,1fr): a wide child can no longer stretch the page past the screen */
h1,h2,h3{font-family:var(--f-display);text-wrap:balance;margin:0;letter-spacing:-0.01em}
h1{font-size:clamp(1.6rem,3.2vw,2.2rem);line-height:1.1}
.sub{color:var(--muted);margin:4px 0 0;max-width:62ch}
.top{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between}
.board{display:flex;flex-wrap:wrap;gap:8px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:6px 12px;min-width:104px;font-variant-numeric:tabular-nums}
.stat .k{font-size:11px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}
.stat .v{font:600 1.05rem/1.2 var(--f-mono)}
.stat.beginner .v{color:var(--beg)} .stat.intermediate .v{color:var(--int)} .stat.advanced .v{color:var(--adv)}

.controls{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.seg{display:inline-flex;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:3px;gap:2px}
.seg button{border:0;background:transparent;color:var(--muted);font:500 14px var(--f-body);padding:7px 14px;border-radius:7px;cursor:pointer}
.seg button[aria-pressed="true"][data-level="beginner"]{background:var(--beg-soft);color:var(--beg)}
.seg button[aria-pressed="true"][data-level="intermediate"]{background:var(--int-soft);color:var(--int)}
.seg button[aria-pressed="true"][data-level="advanced"]{background:var(--adv-soft);color:var(--adv)}
select{font:500 14px var(--f-body);color:var(--fg);background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:8px 10px}
label.inline{display:inline-flex;gap:8px;align-items:center;color:var(--muted);font-size:13px}
.btn{font:600 14px var(--f-body);border-radius:9px;padding:9px 16px;cursor:pointer;border:1px solid var(--line);background:var(--panel);color:var(--fg)}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent}
.btn:disabled{opacity:.5;cursor:not-allowed}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:18px;align-items:start}
@media (max-width:900px){.grid{grid-template-columns:minmax(0,1fr)}}
.main{display:grid;gap:14px;min-width:0}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 20px;min-width:0}
.qmeta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12.5px;color:var(--muted)}
.lvl{font:600 11px var(--f-body);letter-spacing:.08em;text-transform:uppercase;padding:3px 9px;border-radius:999px}
.lvl.beginner{background:var(--beg-soft);color:var(--beg)} .lvl.intermediate{background:var(--int-soft);color:var(--int)} .lvl.advanced{background:var(--adv-soft);color:var(--adv)}
.tag{font:500 12px var(--f-mono);padding:2px 8px;border-radius:6px;background:var(--sunk);border:1px solid var(--line);color:var(--muted)}
.prompt{font-size:1.08rem;line-height:1.6;margin:12px 0 0;max-width:72ch}
.prompt b{font-weight:600;color:var(--fg)}
details.hint{margin-top:12px;font-size:14px}
details.hint summary{cursor:pointer;color:var(--accent);font-weight:500}
details.hint .hintbody{margin:8px 0 0;padding:10px 12px;background:var(--sunk);border-radius:8px;color:var(--fg);display:grid;gap:8px}
details.hint p{margin:0}
.hconcepts,.grading{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.glabel{font:600 11px var(--f-body);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-right:2px}
.ggrid{display:grid;grid-template-columns:minmax(120px,.7fr) auto minmax(0,2fr);margin-top:12px;border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:13.5px}
.ggrid>div{padding:10px 12px;border-top:1px solid var(--line);min-width:0;line-height:1.5}
.ggrid>.fhd{border-top:0;background:var(--sunk);font:600 11px var(--f-body);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding-block:7px}
.ggrid .gname{font-weight:600}
.ggrid .gst{white-space:nowrap}
.ggrid .gwhy{color:var(--fg)}
.ggrid .gwhy .eg{display:block;margin-top:3px;font-size:12.5px;color:var(--muted)}
.gpill{display:inline-block;font:600 12px var(--f-body);padding:2px 10px;border-radius:999px;background:var(--sunk);border:1px solid var(--line);color:var(--muted)}
.gpill.on{background:var(--int-soft);border-color:var(--int);color:var(--int)}
.gpill.ok{background:var(--ok-soft);border-color:var(--ok);color:var(--ok)}
@media (max-width:640px){.ggrid{grid-template-columns:auto minmax(0,1fr)}.ggrid>.fhd{display:none}.ggrid>.gname{border-top:1px solid var(--line);padding-bottom:2px}.ggrid>.gname:nth-child(4){border-top:0}.ggrid>.gst{border-top:1px solid var(--line);text-align:right;padding-bottom:2px}.ggrid>.gst:nth-child(5){border-top:0}.ggrid>.gwhy{grid-column:1/-1;border-top:0;padding-top:0}}

.editor{display:grid;gap:10px}
.code{display:grid;grid-template-columns:auto minmax(0,1fr);background:var(--code-bg);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.code:focus-within{outline:2px solid var(--accent);outline-offset:2px}
.gutter{padding:14px 8px 14px 12px;font:13px/1.6 var(--f-mono);color:#6c748a;text-align:right;user-select:none;overflow:hidden;border-right:1px solid rgba(255,255,255,.08);font-variant-numeric:tabular-nums}
.gutter div{height:1.6em;font-size:13px;line-height:inherit}
.gutter .eln{color:#ff8a7a;font-weight:600}
.area{position:relative;min-width:0;display:flex}
.hl,textarea#sql{font:14px/1.6 var(--f-mono);letter-spacing:0;tab-size:2;padding:14px 16px;margin:0;white-space:pre;border:0}
.hl{position:absolute;inset:0;overflow:hidden;color:var(--code-fg);pointer-events:none}
.t-cl{color:var(--syn-clause);font-weight:600}.t-kw{color:var(--syn-kw)}.t-fn{color:var(--syn-fn)}.t-str{color:var(--syn-str)}.t-num{color:var(--syn-num)}.t-com{color:var(--syn-com);font-style:italic}.t-op{color:var(--syn-op)}
.hl .eline{display:inline-block;min-width:100%;background:rgba(255,107,94,.13)}
.hl mark{color:inherit;background:rgba(255,107,94,.38);border-bottom:2px solid #ff6b5e;border-radius:2px}
textarea#sql{position:relative;flex:1;width:100%;min-height:170px;resize:vertical;color:transparent;caret-color:var(--code-fg);background:transparent;overflow:auto;outline:none}
textarea#sql::selection{background:rgba(120,150,255,.35);color:transparent}
textarea::placeholder{color:#7f879c}
.actions{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;justify-content:space-between}
.agroup{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.assist{padding-left:16px;border-left:1px solid var(--line)}
@media (max-width:560px){.assist{padding-left:0;border-left:0}}
.edhead{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.edhead .kbd{font-size:12px;color:var(--muted)}
@media (hover:none){.edhead .kbd{display:none}}
kbd{font:500 11px var(--f-mono);border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;padding:0 5px;background:var(--sunk)}

.verdict{border-radius:12px;padding:12px 16px;font-weight:500;display:flex;gap:10px;align-items:flex-start}
.verdict.ok{background:var(--ok-soft);color:var(--ok)}
.verdict.bad{background:var(--bad-soft);color:var(--bad)}
.verdict.info{background:var(--warn-soft);color:var(--fg)}
.verdict .sym{font:700 15px var(--f-mono)}
.verdict span.msg{color:var(--fg);font-weight:400}

.out h3{font-size:1rem;margin-bottom:8px;display:flex;gap:8px;align-items:baseline}
.out h3 small{font:400 12px var(--f-body);color:var(--muted)}
.tbl{overflow:auto;max-height:360px;border:1px solid var(--line);border-radius:10px}
table{border-collapse:collapse;width:100%;font:13px/1.4 var(--f-mono);font-variant-numeric:tabular-nums}
th,td{padding:6px 12px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
th{position:sticky;top:0;background:var(--sunk);font-weight:500;color:var(--muted)}
td.null{color:var(--muted);font-style:italic}
tr:last-child td{border-bottom:0}
.more{font-size:12px;color:var(--muted);padding:6px 12px}
.err{font:13px/1.5 var(--f-mono);color:var(--bad);white-space:pre-wrap;margin:0}
.errloc{font:600 13px var(--f-body);color:var(--fg);margin:0 0 8px}
pre.excerpt{margin:10px 0 0;padding:10px 14px;border-radius:10px;background:var(--code-bg);color:var(--code-fg);font:13px/1.6 var(--f-mono);overflow-x:auto}
pre.excerpt .ln{color:#6c748a;user-select:none}
pre.excerpt .car{color:#ff8a7a;font-weight:600}
.errhelp{margin:10px 0 0;font-size:14px;color:var(--fg)}
pre.ref{margin:0;padding:12px 14px;border-radius:10px;background:var(--code-bg);color:var(--code-fg);font:13px/1.6 var(--f-mono);white-space:pre-wrap;word-break:break-word}
.reflabel{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.copy{font:500 12px var(--f-body);padding:4px 10px}

.rail{position:sticky;top:max(12px,env(safe-area-inset-top,0px));display:grid;gap:12px;max-height:calc(100vh - 24px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin}
@media (max-width:900px){.rail{position:static;max-height:none;overflow:visible}}
.rail h2{font-size:1.05rem}
.rail .note{font-size:12.5px;color:var(--muted);margin:2px 0 0}
.tblock{border-top:1px solid var(--line);padding-top:14px;margin-top:14px}
.tblock:first-of-type{border-top:0;padding-top:0;margin-top:16px}
.thead{display:flex;align-items:center;gap:8px}
.tname{font:600 14px var(--f-mono);color:var(--accent);background:none;border:0;padding:0;cursor:pointer;text-align:left}
.tname:hover{text-decoration:underline}
.tcount{font-size:12px;color:var(--muted);margin-right:auto;font-variant-numeric:tabular-nums}
.peek{font:500 12px var(--f-body);color:var(--muted);background:none;border:1px solid var(--line);border-radius:6px;padding:2px 9px;cursor:pointer;flex:none}
.peek:hover{color:var(--fg);border-color:var(--accent)}
ul.cols{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:0}
ul.cols li{display:grid;gap:4px;padding:6px 0;border-top:1px dashed var(--line);min-width:0}
ul.cols li:first-child{border-top:0}
.crow{display:flex;align-items:center;gap:6px;min-width:0}
.cname{font:500 13px var(--f-mono);overflow-wrap:anywhere}
.ctype{margin-left:auto;font:500 10.5px var(--f-mono);letter-spacing:.05em;color:var(--muted)}
.badge{font:600 10px var(--f-body);letter-spacing:.06em;padding:1px 6px;border-radius:999px}
.badge.pk{background:var(--accent-soft);color:var(--accent)}
.badge.fk{background:var(--int-soft);color:var(--int)}
.cmeta{font-size:12px;color:var(--muted);line-height:1.4}
.cmeta b{font:500 12px var(--f-mono);color:var(--int)}
.keys{margin-top:12px;border:1px solid var(--line);border-radius:10px;background:var(--sunk);font-size:13px}
.keys summary{cursor:pointer;padding:7px 10px;display:flex;align-items:center;gap:6px;color:var(--fg);font-weight:500}
.keys[open] summary{border-bottom:1px solid var(--line)}
.keys .kbody{padding:10px 12px;display:grid;gap:10px;line-height:1.5}
.keys .krow{display:grid;grid-template-columns:auto minmax(0,1fr);gap:8px;align-items:baseline}
.keys .kex{font-size:12px;color:var(--muted)}
.keys pre{margin:4px 0 0;padding:8px 10px;border-radius:8px;background:var(--code-bg);color:var(--code-fg);font:12px/1.55 var(--f-mono);white-space:pre-wrap;overflow-wrap:anywhere}
.keys .ktip{font-size:12px;color:var(--muted);border-top:1px dashed var(--line);padding-top:8px}
.cvals{display:flex;flex-wrap:wrap;gap:4px;align-items:center}
.cvals .lbl{font-size:11.5px;color:var(--muted);margin-right:2px}
.cvals code{font-size:11.5px;padding:0 6px;line-height:1.6;color:var(--fg)}
.fmt{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 20px}
.fmt summary{cursor:pointer;font:600 1rem var(--f-display)}
.fgrid{display:grid;grid-template-columns:minmax(150px,1.1fr) minmax(0,1.3fr) minmax(0,1fr);margin-top:12px;border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:13.5px}
.fgrid>div{padding:9px 12px;border-top:1px solid var(--line);min-width:0}
.fgrid>.fhd{border-top:0;background:var(--sunk);font:600 11px var(--f-body);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding-block:7px}
.fgrid .fh{font-weight:600}
.fgrid .fd{font-size:12.5px;color:var(--muted);line-height:1.45;margin-top:2px}
.fgrid code{white-space:pre-wrap;overflow-wrap:anywhere}
.fgrid .ok code::before{content:"✓ ";color:var(--ok);font-weight:700}
.fgrid .no code{color:var(--muted);text-decoration:line-through;text-decoration-color:var(--bad)}
.fgrid .no code::before{content:"✕ ";color:var(--bad);font-weight:700;display:inline-block;text-decoration:none}
@media (max-width:640px){.fgrid{grid-template-columns:minmax(0,1fr)}.fgrid>.fhd{display:none}.fgrid>div{border-top:0;padding-block:3px}.fgrid>.lab{border-top:1px solid var(--line);padding-top:10px}.fgrid>div:nth-child(3n+3){padding-bottom:10px}.fgrid>.lab:nth-child(4){border-top:0}}
code{font:13px var(--f-mono);background:var(--sunk);border:1px solid var(--line);border-radius:5px;padding:0 5px;overflow-wrap:anywhere}
.qnote{margin:10px 0 0;font-size:13.5px;color:var(--muted)}
.linkbtn{font:inherit;font-weight:600;color:var(--accent);background:none;border:0;padding:0;cursor:pointer;text-decoration:underline}
.bad-x{text-decoration:line-through;color:var(--bad)}
.loading{color:var(--muted);font-size:14px}
.helpbtn{font:600 14px var(--f-body);padding:9px 16px;border-radius:9px;border:1px solid var(--accent);background:var(--accent-soft);color:var(--accent);cursor:pointer}
.helpbtn:hover{filter:brightness(1.05)}
.helpbtn:disabled{opacity:.55;cursor:progress}
.helpbox{border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:10px;background:var(--sunk);padding:12px 14px;display:grid;gap:10px}
.helpbox .hstatus{margin:0;font-weight:500}
.helpbox ul{margin:0;padding:0;list-style:none;display:grid;gap:8px}
.helpbox li{display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px;align-items:baseline;font-size:14px;line-height:1.55}
.helpbox .lchip{font:600 11px var(--f-mono);padding:1px 7px;border-radius:999px;background:var(--int-soft);color:var(--int);white-space:nowrap}
.helpbox .lchip.none{background:var(--accent-soft);color:var(--accent)}
.helpfoot{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;font-size:12.5px;color:var(--muted)}
.helpfoot .btn{font-size:13px;padding:6px 12px}
.xplain{margin-top:14px;display:grid;gap:10px;font-size:14px;line-height:1.6}
.xplain h4{margin:6px 0 0;font:600 1rem var(--f-display)}
.xplain .xkey{margin:0;padding:10px 12px;border-radius:8px;background:var(--accent-soft)}
.xplain ol{margin:0;padding-left:22px;display:grid;gap:6px}
.xplain ol li::marker{color:var(--muted);font:600 12px var(--f-mono)}
.xplain code{font-size:12.5px}
.xplain .xintro,.xplain .xset{margin:0;color:var(--muted)}
.xstep,.xsub{border:1px solid var(--line);border-radius:10px;padding:10px 12px;display:grid;gap:6px}
.xsub{border-style:dashed}
.xsubh{font-weight:600;font-size:13.5px}
.xgloss{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:6px 14px;margin:0}
.xgloss dt{margin:0}.xgloss dd{margin:0;color:var(--fg)}
@media (max-width:560px){.xgloss{grid-template-columns:minmax(0,1fr);gap:2px}.xgloss dd{margin-bottom:8px}}
.xorder{margin:0;font-size:12.5px;color:var(--muted);border-top:1px dashed var(--line);padding-top:10px}
.cmpbar{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;margin-top:14px}
.helpnote2{font-size:12.5px;color:var(--muted)}
#cmpOut{margin-top:10px}
.cmplist{margin:0;padding-left:18px!important;list-style:disc!important;display:grid;gap:6px}
.cmplist li{display:list-item!important}
.intro{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 20px;display:grid;gap:12px}
.ihead{display:flex;justify-content:space-between;align-items:center;gap:12px}
.ihead h2{font-size:1.2rem}
.isteps{margin:0;padding:0;list-style:none;counter-reset:st;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr));gap:12px}
.isteps li{counter-increment:st;background:var(--sunk);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:14px;line-height:1.55}
.isteps li::before{content:counter(st);display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--accent);color:var(--accent-ink);font:600 12px var(--f-mono);margin-bottom:6px}
.isteps li b{display:block;margin-bottom:2px}
.inote{margin:0;font-size:13px;color:var(--muted)}
.byo{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;font-size:13px;color:var(--muted);border-top:1px dashed var(--line);padding-top:10px}
.byo .btn{font-size:13px;padding:6px 12px}
.promptbox{width:100%;min-height:120px;font:12px/1.5 var(--f-mono);border:1px solid var(--line);border-radius:8px;padding:8px;background:var(--panel);color:var(--fg)}
.aierr{margin:0;font-size:13px;color:var(--bad)}
.aiset{display:grid;gap:10px}
.aiset h2{font-size:1.05rem}
.aiopt{border:1px solid var(--line);border-radius:10px;padding:10px 12px;display:grid;gap:6px;font-size:13.5px}
.aiopt p{margin:0;color:var(--muted);line-height:1.5}
.aiopt input{font:13px var(--f-mono);padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--fg);width:100%}
.aiopt select{width:100%}
.aiact{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.thinking{color:var(--muted);font-size:14px;display:flex;gap:10px;align-items:center}
.gutter .hln{color:#f0b45c;font-weight:600}
.footer{font-size:12.5px;color:var(--muted)}
.footer button{font:inherit;color:var(--accent);background:none;border:0;padding:0;cursor:pointer;text-decoration:underline}
@media (prefers-reduced-motion:no-preference){.verdict{animation:pop .18s ease-out}@keyframes pop{from{transform:translateY(-3px);opacity:.4}to{transform:none;opacity:1}}}

/* Dropdowns: solid, theme-matched colors with softer text so they read well in both modes */
select,select#ds,select#focus,.aiopt select{background:var(--select-bg);color:var(--select-fg);border:1px solid var(--select-line);font-weight:500}
select:hover{border-color:var(--accent)}
select option,select optgroup{background:var(--select-bg);color:var(--select-fg)}
select option:checked{background:var(--option-hover);color:var(--select-fg)}
label.inline{color:var(--muted)}
/* Was an inline style="margin-top:16px" on the Expected result heading */
.exp-h{margin-top:16px}

/* ---------- Site header (same markup as the rest of the site; uses this page's own color tokens) ---------- */
.site-header{width:min(100%,1240px);margin:0 auto;border:1px solid var(--line);border-radius:999px;background:var(--panel-solid);backdrop-filter:blur(22px) saturate(170%);-webkit-backdrop-filter:blur(22px) saturate(170%);box-shadow:inset 0 1px 0 var(--sheen),var(--shadow);font-family:var(--f-display);font-size:1.0625rem;line-height:1.6}
.site-header .sh-bar{display:flex;align-items:center;gap:1rem;min-height:3.5rem;padding-inline:.9rem .5rem}
.site-header .brand{display:flex;align-items:center;gap:.6rem;margin-right:auto;color:var(--fg);font-family:var(--f-display);font-weight:700;font-size:1.1rem;letter-spacing:-.02em;text-decoration:none}
.site-header .brand:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:10px}
.site-header nav ul{display:flex;gap:.25rem;margin:0;padding:0;list-style:none}
.site-header nav a{position:relative;display:block;padding:.4rem .75rem;border-radius:999px;color:var(--muted);font-weight:500;text-decoration:none;transition:color 160ms,background-color 160ms}
.site-header nav a:hover{color:var(--fg);background:var(--panel-solid)}
.site-header nav a[aria-current="page"]{color:var(--fg)}
.site-header nav a[aria-current="page"]::after{content:"";position:absolute;left:50%;bottom:.05rem;width:5px;height:5px;margin-left:-2.5px;border-radius:50%;background:var(--accent)}
.site-header .theme-toggle{position:relative;display:grid;place-items:center;width:2.5rem;height:2.5rem;padding:0;border:1px solid var(--line);border-radius:50%;background:var(--panel);color:var(--fg);cursor:pointer;transition:transform 160ms cubic-bezier(.34,1.56,.64,1),border-color 160ms}
.site-header .theme-toggle:hover{transform:scale(1.1) rotate(15deg);border-color:var(--accent)}
.site-header .theme-toggle svg{grid-area:1/1;transition:opacity 320ms,transform 320ms cubic-bezier(.34,1.56,.64,1)}
[data-theme="dark"] .site-header .moon{opacity:0;transform:rotate(-90deg) scale(.5)}
[data-theme="light"] .site-header .sun{opacity:0;transform:rotate(90deg) scale(.5)}
.site-header :focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.site-header + .wrap{margin-top:1.75rem}
/* Fixed sizes so a narrow phone can't squeeze the badge or the theme button to nothing */
.site-header .brand,.site-header .theme-toggle{flex:none}
.site-header .pt-mark{width:30px;height:30px;max-width:none}
@media (max-width:34rem){.site-header .brand span{display:none}.site-header .sh-bar{gap:.5rem}.site-header nav ul{gap:0}.site-header nav a{padding-inline:.5rem}}
/* Smallest phones (under ~370px): tighten the header so the theme button stays inside the pill */
@media (max-width:23rem){.site-header .sh-bar{gap:.4rem;padding-inline:.6rem .35rem}.site-header nav a{padding-inline:.4rem;font-size:1rem}.site-header .theme-toggle{width:2.25rem;height:2.25rem}}
/* Phones: the level picker fills the row instead of pushing past the right edge */
@media (max-width:560px){.seg{display:flex;width:100%}.seg button{flex:1 1 auto;padding-inline:6px}}
.pt-mark{display:block;flex:none;overflow:visible}
.pt-ghost path{fill:none;stroke:currentColor;stroke-width:4;stroke-linecap:round;stroke-linejoin:round;opacity:.45;stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset 350ms ease}
.brand:hover .pt-ghost path,.brand:focus-visible .pt-ghost path{stroke-dashoffset:0}
.brand:hover .pt-g2,.brand:focus-visible .pt-g2{transition-delay:300ms}
.brand:hover .pt-g3,.brand:focus-visible .pt-g3{transition-delay:550ms}
.pt-dim{fill:currentColor;opacity:.35}
.pt-chev{fill:none;stroke:currentColor;stroke-width:6;stroke-linecap:round;stroke-linejoin:round}
.pt-ink{fill:currentColor}
.pt-cursor path{fill:none;stroke:var(--accent);stroke-width:6;stroke-linecap:round}
.pt-cursor circle{fill:var(--accent)}
@media (prefers-reduced-motion:reduce){.site-header .theme-toggle,.site-header .theme-toggle svg,.pt-ghost path{transition:none}}