/* SQL Field Guide styles.
   Base reset (was the artifact wrapper's <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;background:#fff;color:#000}img{max-width:100%}[hidden]:not([hidden=until-found i]){display:none!important}

/* Page styles */
/* Layout: sticky filter bar over a sidebar index + single reading column of command cards */
:root{
  --bg:#f5f7f8; --surface:#ffffff; --ink:#16212b; --muted:#5a6a77; --line:#dde4e8;
  --accent:#0b6e75; --accent-soft:#e1f0f0;
  --code-bg:#0f1b24; --code-ink:#dbe6ec; --kw:#7fd3d6; --str:#f2c97d; --cmt:#7a8d99; --num:#e6a3c4; --jinja:#b6a6ff;
  --beg:#2f7d4f; --beg-soft:#e3f2e8; --int:#a86a12; --int-soft:#f8ecd8; --adv:#9b3550; --adv-soft:#f6e1e7;
  --sf:#1f6fb2; --sf-soft:#e2eef8; --dbt:#c4532a; --dbt-soft:#f8e6de;
  --display:"IBM Plex Sans Condensed","Arial Narrow",system-ui,sans-serif;
  --body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"Cascadia Code",Consolas,monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0e161c; --surface:#151f27; --ink:#e3eaee; --muted:#93a4b0; --line:#26343e;
  --accent:#5cc3c6; --accent-soft:#16333a;
  --code-bg:#091116; --code-ink:#d6e2e8;
  --beg:#6fcf97; --beg-soft:#16301f; --int:#e8b45a; --int-soft:#33270f; --adv:#ec8aa5; --adv-soft:#3a1823;
  --sf:#78b6ea; --sf-soft:#142a3d; --dbt:#f0916a; --dbt-soft:#3a1f14; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0e161c; --surface:#151f27; --ink:#e3eaee; --muted:#93a4b0; --line:#26343e;
  --accent:#5cc3c6; --accent-soft:#16333a;
  --code-bg:#091116; --code-ink:#d6e2e8;
  --beg:#6fcf97; --beg-soft:#16301f; --int:#e8b45a; --int-soft:#33270f; --adv:#ec8aa5; --adv-soft:#3a1823;
  --sf:#78b6ea; --sf-soft:#142a3d; --dbt:#f0916a; --dbt-soft:#3a1f14; color-scheme:dark}

body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:15px;line-height:1.55}
*{box-sizing:border-box}
.wrap{max-width:1180px;margin:0 auto;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))} /* side margins match the main site */
header.top{padding-block:36px 20px}
h1{font-family:var(--display);font-weight:700;font-size:clamp(2rem,5vw,2.9rem);line-height:1.05;margin:0 0 10px;letter-spacing:-.01em;text-wrap:balance}
.lede{color:var(--muted);max-width:66ch;margin:0}
.schema{margin-top:16px;font-family:var(--mono);font-size:12.5px;color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:10px 12px;overflow-x:auto;white-space:pre}
.schema b{color:var(--accent);font-weight:600}
.schema i{display:block;margin-top:8px;font-style:normal;color:var(--muted)}

body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--bg)}
.bar{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--bg);border-bottom:1px solid var(--line)}
.bar .wrap{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding-block:10px}
.search{flex:1 1 240px;min-width:0;font:inherit;padding:9px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink)}
.search:focus-visible,.chip:focus-visible,.copy:focus-visible,nav a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{font:500 13px var(--body);padding:6px 11px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--muted);cursor:pointer}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.count{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}

.layout{display:grid;grid-template-columns:200px minmax(0,1fr);gap:36px;padding-block:24px 60px}
nav.toc{position:sticky;top:calc(env(safe-area-inset-top,0px) + 76px);align-self:start;display:flex;flex-direction:column;gap:1px;font-size:13.5px;max-height:calc(100vh - 96px);overflow-y:auto;padding-bottom:16px;overscroll-behavior:contain}
nav.toc .lbl{font:600 11px var(--body);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:10px 0 4px}
nav.toc a{color:var(--ink);text-decoration:none;padding:3px 8px;border-radius:5px;display:grid;grid-template-columns:1.5em minmax(0,1fr) auto;gap:4px;align-items:baseline}
nav.toc a b{font-weight:500;color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}
nav.toc a i{font-style:normal}
nav.toc a.active{background:var(--accent-soft);color:var(--accent)}
nav.toc a.active b{color:var(--accent)}
nav.toc a.dim{opacity:.45}
nav.toc a:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
nav.toc a:hover{background:var(--accent-soft)}
nav.toc a span{color:var(--muted);font-variant-numeric:tabular-nums}
@media (max-width:820px){.layout{grid-template-columns:1fr}nav.toc{display:none}}

main{display:flex;flex-direction:column;gap:44px;min-width:0}
section h2{font-family:var(--display);font-weight:600;font-size:1.6rem;margin:0 0 4px;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
section > .intro{color:var(--muted);margin:0 0 16px;max-width:70ch}
.cards{display:flex;flex-direction:column;gap:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px 18px;display:flex;flex-direction:column;gap:10px;min-width:0}
.card-h{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.card h3{font-family:var(--mono);font-size:15px;font-weight:600;margin:0}
.what{margin:0;max-width:72ch}
.pill{font:600 10.5px var(--body);text-transform:uppercase;letter-spacing:.07em;padding:3px 8px;border-radius:4px}
.L-beginner{color:var(--beg);background:var(--beg-soft)}
.L-intermediate{color:var(--int);background:var(--int-soft)}
.L-advanced{color:var(--adv);background:var(--adv-soft)}
.L-snowflake{color:var(--sf);background:var(--sf-soft)}
.L-dbt{color:var(--dbt);background:var(--dbt-soft)}
.code{position:relative;background:var(--code-bg);border-radius:8px;min-width:0}
.code pre{margin:0;padding:14px 16px;overflow-x:auto;font:13px/1.6 var(--mono);color:var(--code-ink)}
.k{color:var(--kw);font-weight:600}.s{color:var(--str)}.c{color:var(--cmt);font-style:italic}.n{color:var(--num)}.j{color:var(--jinja)}
.copy{position:absolute;top:8px;right:8px;font:500 11.5px var(--body);padding:4px 9px;border-radius:5px;border:1px solid #2c3d49;background:#16252f;color:#c7d6de;cursor:pointer}
.copy:hover{background:#1f3341}
.tip{margin:0;font-size:13.5px;color:var(--muted);max-width:72ch}
.tip b{color:var(--ink);font-weight:600}

.order{display:flex;flex-wrap:wrap;gap:6px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px}
.order .step{font:600 12.5px var(--mono);padding:6px 10px;border-radius:6px;background:var(--accent-soft);color:var(--accent);display:flex;gap:6px;align-items:center}
.order .step i{font-style:normal;font:500 11px var(--body);color:var(--muted)}
.order .arr{color:var(--muted)}

.tbl{overflow-x:auto;background:var(--surface);border:1px solid var(--line);border-radius:10px}
table{border-collapse:collapse;width:100%;font-size:13.5px;min-width:620px}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{font:600 11.5px var(--body);text-transform:uppercase;letter-spacing:.06em;color:var(--muted);background:var(--bg)}
td code{font-family:var(--mono);font-size:12.5px}
tr:last-child td{border-bottom:0}

.gloss{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.term{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.term dt{font:600 14px var(--body);margin-bottom:3px}
.term dd{margin:0;font-size:13.5px;color:var(--muted)}
.empty{color:var(--muted);font-style:italic}
.refpair{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:14px;margin:0 0 16px}
.refbox{display:flex;flex-direction:column;gap:8px;min-width:0}
.reft{font:600 11.5px var(--body);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0}
table.mini{min-width:0}
table.mini td code{white-space:pre-wrap;color:var(--accent)}
table.mini td.num{font-variant-numeric:tabular-nums;color:var(--muted);width:2em}
.tv{font:600 12px var(--mono)}
table.mini.wide{min-width:560px}
table.mini.wide td:first-child{font-weight:600}
@media (max-width:640px){
  table.mini.wide{min-width:0}
  table.mini.wide thead{display:none}
  table.mini.wide tr{display:grid;grid-template-columns:1fr;gap:4px;padding:10px 12px;border-bottom:1px solid var(--line)}
  table.mini.wide tr:last-child{border-bottom:0}
  table.mini.wide td{border:0;padding:0;display:grid;grid-template-columns:96px minmax(0,1fr);gap:8px;align-items:baseline}
  table.mini.wide td:first-child{display:block;margin-bottom:2px}
  table.mini.wide td[data-l]::before{content:attr(data-l);font:600 10.5px var(--body);text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
}
.enf{font:600 11px var(--body);padding:2px 7px;border-radius:4px;white-space:nowrap;justify-self:start}
.enf-yes{color:var(--beg);background:var(--beg-soft)}
.enf-rec{color:var(--int);background:var(--int-soft)}
.enf-no{color:var(--adv);background:var(--adv-soft)}
table.mini.xwide{min-width:760px}
table.dialect{min-width:980px}
.card-group{font:600 11.5px var(--body);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:14px 0 0;padding-top:10px;border-top:1px solid var(--line)}
.card-group:first-child{margin-top:0;padding-top:0;border-top:0}
.aggref{margin-bottom:4px}
.sample{margin:0;font-size:13.5px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.sample span{font:600 12.5px var(--mono);color:var(--ink);background:var(--accent-soft);padding:2px 8px;border-radius:4px;font-variant-numeric:tabular-nums}
.sample span.nul{color:var(--int);background:var(--int-soft)}
.agg-anat{display:flex;flex-wrap:wrap;gap:6px;align-items:flex-start}
.agg-anat .seg{display:flex;flex-direction:column;align-items:center;gap:4px}
.agg-anat code{font:600 14px var(--mono);padding:6px 10px;border-radius:6px;background:var(--bg);border:1px solid var(--line);color:var(--ink)}
.agg-anat .seg.main code{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
.agg-anat .seg.opt code{border-style:dashed;color:var(--muted)}
.agg-anat span{font-size:11.5px;color:var(--muted);white-space:nowrap}
table.across{font-variant-numeric:tabular-nums}
table.across th,table.across td{padding:8px 10px}
table.across td,table.across tfoot th{font-family:var(--mono);font-size:12.5px}
table.across .hl{background:var(--accent-soft)}
table.across .nul{color:var(--int)}
table.across thead small{font-weight:500;text-transform:none;letter-spacing:0}
table.across tfoot th,table.across tfoot td{border-top:2px solid var(--line);border-bottom:0;font-weight:600}
table.across tfoot th{text-transform:none;letter-spacing:0;color:var(--ink);background:transparent}
table.mini td.res{font:600 12.5px var(--mono);font-variant-numeric:tabular-nums;white-space:nowrap}
.tv-t{color:var(--beg)}.tv-f{color:var(--adv)}.tv-n{color:var(--int)}
section,.anat,.card,.part{scroll-margin-top:calc(env(safe-area-inset-top,0px) + var(--barh,70px) + 14px)}
a.step{text-decoration:none}
a.step:hover{outline:1px solid var(--accent)}
a.step:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.anat-tools{display:flex;gap:8px;margin:0 0 12px}
.anats{display:flex;flex-direction:column;gap:10px}
.an-group{font:600 11.5px var(--body);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:14px 0 2px}
.an-group:first-child{margin-top:0}
.anat{background:var(--surface);border:1px solid var(--line);border-radius:10px;min-width:0}
.anat[open]{border-color:var(--accent)}
.anat > summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:auto auto auto minmax(0,1fr);align-items:baseline;gap:4px 12px;padding:14px 18px}
.anat > summary::-webkit-details-marker{display:none}
.anat > summary:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;border-radius:10px}
.an-name{font:600 15px var(--mono);position:relative;padding-left:18px;white-space:nowrap}
.an-name::before{content:"";position:absolute;left:1px;top:.42em;width:6px;height:6px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(-45deg)}
.anat[open] .an-name::before{transform:rotate(45deg);top:.3em}
@media (prefers-reduced-motion:no-preference){.an-name::before{transition:transform .15s}}
.an-run{font-size:12.5px;color:var(--muted);white-space:nowrap}
.an-sum{color:var(--muted);font-size:13.5px}
.anat > summary .pill{justify-self:start}
@media (max-width:640px){.anat > summary{grid-template-columns:minmax(0,1fr) auto}.an-run{grid-row:2;grid-column:1 / 3;padding-left:18px}.an-sum{grid-column:1 / -1;padding-left:18px}}
.an-body{padding:0 18px 18px;display:flex;flex-direction:column;gap:12px;min-width:0}
.an-body h4{margin:6px 0 -4px;font:600 11.5px var(--body);text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}
.acc,.got{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px;max-width:78ch;font-size:14px}
.acc li::marker{color:var(--accent)}
.got li::marker{color:var(--adv)}
.acc code,.got code,.parts td:last-child code{font-family:var(--mono);font-size:12.5px;background:var(--accent-soft);padding:1px 5px;border-radius:4px}
table.parts{min-width:0}
.parts td:first-child{font-weight:600;white-space:nowrap}
.parts td:nth-child(2) code{color:var(--accent);white-space:pre-wrap}
@media (max-width:600px){
  .parts thead{display:none}
  .parts tr{display:grid;grid-template-columns:1fr;gap:2px;padding:10px 12px;border-bottom:1px solid var(--line)}
  .parts tr:last-child{border-bottom:0}
  .parts td{border:0;padding:0}
}
.exnum{font:600 13px var(--mono);color:var(--accent)}
.donebox{margin-left:auto;display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);cursor:pointer}
.donebox input{accent-color:var(--accent);width:16px;height:16px;margin:0}
.ex.is-done{border-color:var(--accent)}
.ex.is-done .what{color:var(--muted)}
.ex details{display:flex;flex-direction:column;gap:10px}
.ex details[open]{padding-top:2px}
.ex summary{cursor:pointer;font:600 13px var(--body);color:var(--accent);width:max-content;padding:2px 0}
.ex summary:focus-visible,.donebox input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.ex details > *:not(summary){margin-top:8px}
.progress{display:flex;align-items:center;gap:12px;margin:0 0 16px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.track{flex:1;max-width:260px;height:6px;border-radius:3px;background:var(--line);overflow:hidden}
.fill{height:100%;background:var(--accent)}
footer{color:var(--muted);font-size:13px;padding-block:0 80px}
.jdemo{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px 16px;display:flex;flex-direction:column;gap:10px;margin-bottom:16px;min-width:0}
.jdemo .tip{margin:0}
.jsrc{display:flex;flex-wrap:wrap;gap:16px}
.jsrc > div{flex:1 1 200px;min-width:0;overflow-x:auto} /* a wide source table scrolls inside its box on small phones */
.jcap{font:600 13px var(--mono);margin-bottom:4px}
.jcap span{font:500 11px var(--body);color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-left:6px}
table.jt{min-width:0;width:100%;font:12.5px/1.4 var(--mono);font-variant-numeric:tabular-nums;border:1px solid var(--line)}
table.jt th{font-size:10.5px;padding:6px 8px}
table.jt td{padding:6px 8px}
table.jt tr.dropped td{opacity:.4;text-decoration:line-through}
@media (prefers-reduced-motion:no-preference){table.jt td{transition:opacity .2s}}
.jnull{color:var(--int)}
.jtabs{display:flex;flex-wrap:wrap;gap:6px}
.jpane{display:flex;flex-direction:column;gap:8px;min-width:0}
.jpane[hidden]{display:none}
.jscroll{overflow-x:auto}
.jvenn{display:block;width:100%;max-width:420px;height:auto;margin:2px auto 0}
.jvenn .rg{fill:var(--accent);fill-opacity:0}
@media (prefers-reduced-motion:no-preference){.jvenn .rg{transition:fill-opacity .32s cubic-bezier(.34,1.56,.64,1)}}
.jdemo[data-v~="l"] .jvenn .vl,.jdemo[data-v~="m"] .jvenn .vm,.jdemo[data-v~="r"] .jvenn .vr{fill-opacity:.34}
.jvenn circle{fill:none;stroke:var(--muted);stroke-width:1.2}
.jvenn .vt{font:600 13px var(--mono);fill:var(--ink)}
.jvenn .vs{font:500 11.5px var(--body);fill:var(--muted)}
.jvenn .vk{font:500 11.5px var(--body);fill:var(--muted)}
table.jr{min-width:340px}
.order-pair{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.order-pair .reft{margin-top:6px}
.order-pair .tip{margin:0}
footer a,.lede a{color:var(--accent);text-underline-offset:2px}

main a:not(.step):not(.next):not(.exlink){color:var(--accent);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:2px}
main a:not(.step):not(.next):not(.exlink):hover{text-decoration-thickness:2px}
main a:focus-visible,.lede a:focus-visible,footer a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:3px}
.see,.needs{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 14px;margin:0;font-size:13.5px}
.see > span,.needs > span,.lbl2{font:600 10.5px var(--body);text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}
.see{padding-top:10px;border-top:1px solid var(--line)}
.needs{margin:-6px 0 16px}
.sec-foot{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:18px;padding-top:14px;border-top:1px dashed var(--line)}
.exs{display:flex;flex-wrap:wrap;align-items:center;gap:6px;min-width:0}
.exs .lbl2{margin-right:4px}
.exlink{font:600 12px var(--mono);padding:3px 8px;border-radius:5px;border:1px solid var(--line);background:var(--surface);color:var(--ink);text-decoration:none}
.exlink:hover{border-color:var(--accent);color:var(--accent)}
.exlink.solved{background:var(--beg-soft);color:var(--beg);border-color:transparent}
.exlink.solved::after{content:" \2713"}
.next{font:600 13.5px var(--body);color:var(--accent);text-decoration:none;padding:8px 13px;border-radius:7px;background:var(--accent-soft);margin-left:auto}
.next:hover{text-decoration:underline;text-underline-offset:2px}
.next:focus-visible,.exlink:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.part{padding-top:14px;border-top:3px solid var(--ink);display:flex;flex-direction:column;gap:4px;margin:20px 0 -16px}
.part:first-child{margin-top:0}
.eyebrow{font:600 12px var(--body);text-transform:uppercase;letter-spacing:.1em;color:var(--accent)}
.part-name{font-family:var(--display);font-weight:700;font-size:clamp(1.9rem,4.4vw,2.4rem);margin:0;line-height:1.05;letter-spacing:-.01em;text-wrap:balance}
.part p{margin:0;color:var(--muted);max-width:66ch}
.howto{margin:0 0 20px;padding-left:20px;display:flex;flex-direction:column;gap:8px;max-width:78ch}
.path{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:12px}
.pcard{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px 16px;display:flex;flex-direction:column;gap:4px;min-width:0}
.pcard h3{margin:0;font-family:var(--display);font-size:1.3rem;font-weight:600}
.pcard > p{margin:0 0 4px;color:var(--muted);font-size:13.5px}
.plist{list-style:none;margin:4px 0 0;padding:8px 0 0;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:5px;font-size:14px}
.plist li{display:flex;justify-content:space-between;gap:4px 10px;align-items:baseline;flex-wrap:wrap}
.plist .meta{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.flash{animation:flash 1.8s ease-out}
@keyframes flash{0%,35%{box-shadow:0 0 0 3px var(--accent)}100%{box-shadow:0 0 0 3px transparent}}
@media (prefers-reduced-motion:reduce){.flash{animation:none}}
section.flash{animation:none}
[tabindex="-1"]:focus{outline:none}
.floaters{position:fixed;right:calc(16px + env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));display:flex;gap:8px;z-index:20}
.fbtn{font:600 13.5px var(--body);padding:10px 15px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
.fbtn-back{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.fbtn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.jump{display:none;font:inherit;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);min-width:0}
@media (max-width:820px){.jump{display:block;flex:1 1 100%}.bar .chips{flex-wrap:nowrap;overflow-x:auto;flex:1 1 100%;scrollbar-width:none;padding-bottom:2px}.bar .chips::-webkit-scrollbar{display:none}.bar .chip{flex:none}.bar .count{display:none}}
.startlink{font-weight:600}

@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}

/* Acronyms reference section */
table.acr td:first-child{white-space:nowrap;font-family:var(--mono);font-size:13px}
table.acr td:first-child b{color:var(--accent)}
.acr-see{white-space:nowrap;font-size:12.5px}

/* Acronym flashcards */
.acr-tabs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 14px}
.acr-tabs-note{font-size:12.5px;color:var(--muted)}
.fc{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px;display:flex;flex-direction:column;gap:12px;margin-bottom:22px;box-shadow:inset 0 1px 0 var(--glass-hi);min-width:0}
.fc-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:4px 12px}
.fc-prog{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.fc .fc-track{max-width:none;flex:none}
.fc-opts{display:flex;flex-wrap:wrap;gap:8px 10px;align-items:center}
.fc-sel{display:flex;align-items:center;gap:8px;min-width:0}
.fc-sel select{font:inherit;font-size:13.5px;padding:6px 10px;border:1px solid var(--line);border-radius:8px;max-width:100%;min-width:0}
.fc-chk{display:flex;align-items:center;gap:6px;font-size:13.5px;color:var(--muted);cursor:pointer}
.fc-chk input{accent-color:var(--accent);width:16px;height:16px;margin:0}
.fc-card{display:block;width:100%;padding:0;border:0;background:none;color:inherit;font:inherit;cursor:pointer;perspective:1400px;text-align:center}
.fc-card:focus-visible{outline:none}
.fc-card:focus-visible .fc-face{outline:2px solid var(--accent);outline-offset:3px}
.fc-inner{display:grid}
.fc-face{grid-area:1 / 1;min-height:230px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:28px 22px;border-radius:14px;border:1px solid var(--line);background:var(--glass-strong);box-shadow:inset 0 1px 0 var(--glass-hi),0 18px 40px -24px var(--glass-shadow);backface-visibility:hidden;-webkit-backface-visibility:hidden;min-width:0}
.fc-back{border-color:var(--accent)}
/* Two-stage flip: the showing side turns to edge-on (90deg), then the other side turns
   in from edge-on. Neither side ever goes past 90deg, so no browser can show reversed
   text, and it doesn't depend on backface-visibility (which Firefox ignores on a <button>). */
.fc-front{transform:perspective(1200px) rotateY(0deg)}
.fc-back{transform:perspective(1200px) rotateY(90deg);visibility:hidden}
.fc-card.flipped .fc-front{transform:perspective(1200px) rotateY(-90deg);visibility:hidden}
.fc-card.flipped .fc-back{transform:perspective(1200px) rotateY(0deg);visibility:visible}
@media (prefers-reduced-motion:no-preference){
  /* Turning out: no delay, speeds up into the edge. Turning in: waits for the other side, eases to rest. */
  .fc-front,.fc-card.flipped .fc-back{transition:transform .22s cubic-bezier(.2,.7,.3,1) .22s,visibility 0s linear .22s}
  .fc-back,.fc-card.flipped .fc-front{transition:transform .22s cubic-bezier(.6,0,.9,.4),visibility 0s linear .22s}
}
.fc-card:hover .fc-face{border-color:var(--accent)}
.fc-g{font:600 11px var(--display);text-transform:uppercase;letter-spacing:.09em;color:var(--muted)}
.fc-acr{font:700 clamp(2.2rem,9vw,3.6rem)/1.05 var(--mono);color:var(--accent);overflow-wrap:anywhere;font-variant-ligatures:none}
.fc-acr.fc-acr-sm{font-size:1.4rem}
.fc-s{font:600 clamp(1.15rem,3.6vw,1.5rem)/1.25 var(--display);color:var(--ink);text-wrap:balance;max-width:34ch}
.fc-m{font-size:15px;color:var(--muted);max-width:52ch;text-wrap:pretty}
.fc-m.fc-m-q{font-size:1.1rem;color:var(--ink)}
.fc-q{font-size:13px;color:var(--muted)}
.fc-known{font:600 11px var(--body);color:var(--beg);background:var(--beg-soft);padding:2px 9px;border-radius:999px}
.fc-ctrl{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.fc-ctrl .chip{padding:8px 14px;font-size:13.5px}
.fc-ctrl .chip:disabled{opacity:.4;cursor:default}
.fc-ctrl .chip.fc-yes{background:var(--beg-soft);color:var(--beg);border-color:transparent}
.fc-ctrl .chip.fc-yes:hover{border-color:var(--beg)}
.fc-hint{text-align:center;margin:0 auto}
.fc-link{text-align:center;font-size:13.5px;margin:0}
.fc-done{text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px;padding:18px 8px}
.fc-done p{margin:0;max-width:52ch}

/* ---------- Practice database panel (added Nov 2026) ----------
   Slide-in SQL runner: Run buttons on examples, the Try SQL floater, and the panel. */
code,kbd,pre,textarea,.schema,.an-name,.card h3{font-variant-ligatures:none;font-feature-settings:"calt" 0,"liga" 0}
.run{position:absolute;top:8px;right:72px;font:600 11.5px var(--body);padding:4px 10px;border-radius:5px;border:1px solid var(--site-accent);background:var(--site-accent);color:var(--site-on-accent);cursor:pointer;display:inline-flex;gap:5px;align-items:center}
.run span{font-size:9px}
.run:hover{background:var(--site-accent-hover);border-color:var(--site-accent-hover)}
.run:focus-visible,.pg-btn:focus-visible,.pg-x:focus-visible,.pg-tlink:focus-visible,.linkbtn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.linkbtn{font:inherit;color:var(--accent);background:none;border:0;padding:0;cursor:pointer;text-decoration:underline;text-underline-offset:2px}
.fbtn-pg{color:var(--site-text)}
.fbtn-pg span{color:var(--site-accent);font-size:11px}
.pg{position:fixed;z-index:40;top:0;right:0;bottom:0;width:min(700px,54vw);display:flex;flex-direction:column;gap:12px;overflow-y:auto;overscroll-behavior:contain;
  padding:calc(18px + env(safe-area-inset-top,0px)) max(20px,env(safe-area-inset-right,0px)) calc(20px + env(safe-area-inset-bottom,0px)) 20px;
  background:color-mix(in srgb,var(--site-bg) 90%,transparent);backdrop-filter:blur(22px) saturate(160%);-webkit-backdrop-filter:blur(22px) saturate(160%);
  border-left:1px solid var(--glass-line);box-shadow:-24px 0 48px -28px var(--glass-shadow);transform:translateX(102%)}
.pg.is-in{transform:none}
@media (prefers-reduced-motion:no-preference){.pg{transition:transform .22s cubic-bezier(.2,.8,.2,1)}}
@media (max-width:760px){
  .pg{top:auto;left:0;width:auto;height:min(88vh,88dvh);border-left:0;border-top:1px solid var(--glass-line);border-radius:16px 16px 0 0;
    padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-top:16px;transform:translateY(102%);box-shadow:0 -20px 40px -24px var(--glass-shadow)}
}
html.pg-open .floaters{visibility:hidden}
.pg-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.pg-head h2{font-family:var(--display);font-weight:700;font-size:1.35rem;letter-spacing:-.03em;margin:0;line-height:1.15}
.pg-sub{margin:3px 0 0;font-size:13px;color:var(--muted)}
.pg-x{flex:none;width:34px;height:34px;border-radius:8px;border:1px solid var(--glass-line);background:var(--glass);color:var(--ink);font:400 22px/1 var(--body);cursor:pointer}
.pg-x:hover{border-color:var(--site-accent)}
.pg-src{margin:-4px 0 0;font-size:12.5px;color:var(--muted)}
.pg-label{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:-6px}
.pg-ed{display:block;width:100%;min-height:190px;resize:vertical;font:13px/1.6 var(--mono);tab-size:2;color:var(--code-ink);background:var(--code-bg);border:1px solid var(--glass-line);border-radius:10px;padding:12px 14px;white-space:pre;overflow:auto}
.pg-ed:focus{outline:2px solid var(--accent);outline-offset:1px}
.pg-actions{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px}
.pg-btn{font:600 13.5px var(--body);padding:8px 14px;border-radius:8px;border:1px solid var(--glass-line);background:var(--glass-strong);color:var(--ink);cursor:pointer}
.pg-btn:hover{border-color:var(--site-accent)}
.pg-pri{background:var(--site-accent);border-color:var(--site-accent);color:var(--site-on-accent);min-width:84px}
.pg-pri:hover{background:var(--site-accent-hover);border-color:var(--site-accent-hover)}
.pg-pri:disabled{opacity:.7;cursor:progress}
.pg-kbd{font-size:12px;color:var(--muted)}
.pg-chk{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);cursor:pointer;margin-left:auto}
.pg-chk input{accent-color:var(--accent);width:16px;height:16px;margin:0}
.pg-out{display:flex;flex-direction:column;gap:14px;min-width:0}
.pg-empty{margin:0;font-size:13.5px;color:var(--muted);padding:14px;border:1px dashed var(--glass-line);border-radius:10px}
.pg-res{display:flex;flex-direction:column;gap:8px;min-width:0}
.pg-res p{margin:0}
.pg-meta{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.pg-meta b{color:var(--ink);font-weight:600}
.pg-err,.pg-skip{padding:12px 14px;border-radius:10px;border:1px solid color-mix(in srgb,var(--adv) 45%,transparent);background:color-mix(in srgb,var(--adv) 12%,transparent)}
.pg-skip{border-color:var(--glass-line);background:var(--glass)}
.pg-done{padding:10px 14px;border-radius:10px;border:1px solid color-mix(in srgb,var(--beg) 45%,transparent);background:color-mix(in srgb,var(--beg) 10%,transparent)}
.pg-msg{font:13px/1.5 var(--mono);color:var(--ink);overflow-wrap:anywhere}
.pg-hint{font-size:13.5px;color:var(--ink)}
.pg-notes{margin:0;padding-left:18px;font-size:12.5px;color:var(--muted);display:flex;flex-direction:column;gap:2px}
.pg-grid{overflow:auto;max-height:360px;border:1px solid var(--glass-line);border-radius:10px;background:var(--glass)}
.pg-grid:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.pg-grid table{border-collapse:collapse;min-width:100%;font:12.5px/1.45 var(--mono)}
.pg-grid th,.pg-grid td{text-transform:none;letter-spacing:0;padding:6px 12px;text-align:left;white-space:nowrap;border-bottom:1px solid var(--glass-line);vertical-align:top}
.pg-grid thead th{position:sticky;top:0;z-index:1;background:color-mix(in srgb,var(--site-bg) 88%,var(--site-text));font-family:var(--body);font-weight:600;font-size:12px;color:var(--ink);text-transform:none;letter-spacing:0}
.pg-grid tbody tr:last-child td,.pg-grid tbody tr:last-child th{border-bottom:0}
.pg-num{text-align:right!important;font-variant-numeric:tabular-nums}
.pg-null{color:var(--muted);font-style:italic}
.pg-bool{color:var(--sf)}
.pg-tables{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px;font-size:13px;color:var(--muted)}
.pg-tlink{font:500 12.5px var(--mono);padding:4px 9px;border-radius:6px;border:1px solid var(--glass-line);background:var(--glass);color:var(--ink);cursor:pointer}
.pg-tlink:hover{border-color:var(--site-accent)}
.pg-grid .pg-tlink{padding:2px 7px}
.pg-cols{white-space:normal!important;min-width:260px;color:var(--muted)}
.pg-about{border-top:1px solid var(--glass-line);padding-top:10px;font-size:13.5px}
.pg-about summary{cursor:pointer;font-weight:600;color:var(--ink)}
.pg-about p,.pg-about ul{margin:10px 0 0;color:var(--muted);max-width:68ch}
.pg-about ul{padding-left:18px;display:flex;flex-direction:column;gap:4px}
.pg-about .pg-grid{margin-top:10px;max-height:none}

/* Syntax colors in the practice editor: colored layer behind a transparent-text textarea */
.pg-edwrap{position:relative}
.pg-edwrap .pg-ed{color:transparent;caret-color:var(--code-ink);-webkit-text-fill-color:transparent}
.pg-edwrap .pg-ed::selection{background:color-mix(in srgb,var(--accent) 35%,transparent)}
.pg-hl{position:absolute;inset:0;margin:0;pointer-events:none;overflow:hidden;font:13px/1.6 var(--mono);tab-size:2;color:var(--code-ink);background:none;border:1px solid transparent;border-radius:10px;padding:12px 14px;white-space:pre;font-variant-ligatures:none;font-feature-settings:"calt" 0,"liga" 0}
.pg-hl code{display:block;width:max-content;min-width:100%;font:inherit;color:inherit;background:none;padding:0;border:0}