/* Tomebuy Spreadsheet Unabridged · prefix gqb- · colours from tomebuy.com (logo cyan/orange, UI brick red, dark bar) */
@font-face{font-family:"Bebas Neue";src:url("/assets/fonts/bebas-neue-latin.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
:root{
 --gqb-ink:#262626;--gqb-text:#2f2f2f;--gqb-muted:#5c5c5c;--gqb-line:#e4dfda;--gqb-paper:#faf9f8;--gqb-sand:#f4f1ee;
 --gqb-cyan:#00BDE0;--gqb-cyan-ink:#006E82;--gqb-cyan-soft:#e8f8fc;
 --gqb-orange:#F26E08;--gqb-orange-ink:#A84A00;--gqb-orange-soft:#fff5ec;
 --gqb-brick:#C92910;--gqb-brick-dk:#A32A1E;
 --gqb-display:"Bebas Neue",Impact,"Arial Narrow",sans-serif;
 --gqb-body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
 --gqb-r:8px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:var(--gqb-text);font:17px/1.65 var(--gqb-body)}
img{max-width:100%;height:auto;display:block}
a{color:var(--gqb-cyan-ink);text-underline-offset:3px}
a:hover{color:var(--gqb-brick)}
:focus-visible{outline:3px solid var(--gqb-orange);outline-offset:2px}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.3em}
li{margin:0 0 .35em}
h1,h2{font-family:var(--gqb-display);font-weight:400;letter-spacing:.4px;color:var(--gqb-ink);line-height:1.04;margin:0 0 .45em}
h1{font-size:clamp(40px,5.6vw,64px)}
h2{font-size:clamp(30px,3.4vw,40px)}
h3{font:700 19px/1.35 var(--gqb-body);color:var(--gqb-ink);margin:1.4em 0 .4em}
strong{color:var(--gqb-ink)}
.gqb-wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.gqb-skip{position:absolute;left:-9999px;top:0;background:#fff;padding:10px 14px;z-index:9}
.gqb-skip:focus{left:12px;top:8px}
/* top strip + header */
.gqb-top{background:var(--gqb-ink);color:#e9e4df;font-size:14px}
.gqb-top-in{display:flex;justify-content:space-between;gap:16px;align-items:center;min-height:38px}
.gqb-top p{margin:0}
.gqb-top a{color:#fff;display:inline-block;padding:9px 0;min-height:38px}
.gqb-top a:hover{color:var(--gqb-cyan)}
.gqb-head{background:#fff;border-bottom:1px solid var(--gqb-line)}
.gqb-head-in{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px}
.gqb-brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex:none;min-height:44px}
.gqb-brand img{width:132px;height:auto}
.gqb-brand-t{font:400 21px/1 var(--gqb-display);letter-spacing:.6px;color:var(--gqb-ink);border-left:2px solid var(--gqb-line);padding-left:12px;max-width:150px}
.gqb-brand-t em{font-style:normal;color:var(--gqb-brick);display:block}
.gqb-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:2px}
.gqb-nav li{margin:0}
.gqb-nav a{display:flex;align-items:center;min-height:44px;padding:0 11px;color:var(--gqb-ink);text-decoration:none;font-size:15.5px;font-weight:600;border-bottom:3px solid transparent;white-space:nowrap}
.gqb-nav a:hover{color:var(--gqb-brick)}
.gqb-nav a[aria-current="page"]{border-bottom-color:var(--gqb-brick)}
/* crumbs + running head */
.gqb-main{display:block}
.gqb-crumbs{max-width:1120px;margin:18px auto 0;padding:0 24px;font-size:14px}
.gqb-crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 0}
.gqb-crumbs li{margin:0;color:var(--gqb-muted)}
.gqb-crumbs li+li::before{content:"/";margin:0 8px;color:#a8a29c}
.gqb-crumbs a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:44px;padding:0 2px}
.gqb-run{max-width:860px;margin:18px auto 0;padding:0 24px;font:400 18px/1 var(--gqb-display);letter-spacing:1.6px;color:var(--gqb-orange-ink)}
/* article column */
.gqb-col{max-width:860px;margin:0 auto;padding:0 24px}
.gqb-col>header{padding:14px 0 6px}
.gqb-dek{font-size:19px;line-height:1.55;color:var(--gqb-muted);max-width:760px}
.gqb-sec{padding:34px 0 10px;border-top:1px solid var(--gqb-line);margin-top:22px}
.gqb-sec:first-of-type{border-top:0}
.gqb-fig{margin:24px 0 8px;width:100%}
.gqb-fig img{width:100%;height:auto;border:1px solid var(--gqb-line);border-radius:6px;background:#fff}
.gqb-fig figcaption{font-size:14.5px;line-height:1.5;color:var(--gqb-muted);margin-top:8px}
.gqb-gslot,.gqb-vslot{display:block;width:100%;margin:22px 0;background:var(--gqb-sand);border-radius:var(--gqb-r)}
.gqb-gslot{aspect-ratio:16/10}
.gqb-vslot{aspect-ratio:16/9}
.gqb-gslot[hidden],.gqb-vslot[hidden]{display:none}
.gqb-vslot iframe,.gqb-vslot video{width:100%;height:100%;border:0;border-radius:var(--gqb-r)}
.gqb-slip{border:2px solid var(--gqb-orange);border-left-width:10px;border-radius:6px;background:var(--gqb-orange-soft);padding:14px 18px;margin:18px 0}
.gqb-slip p{margin:0}
.gqb-slip strong{color:var(--gqb-orange-ink)}
.gqb-note{background:var(--gqb-cyan-soft);border-left:5px solid var(--gqb-cyan-ink);padding:12px 16px;border-radius:4px;margin:16px 0}
.gqb-note p:last-child{margin:0}
.gqb-col table{width:100%;border-collapse:collapse;margin:14px 0 20px;font-size:15.5px}
.gqb-col th,.gqb-col td{text-align:left;padding:10px 10px;border-bottom:1px solid var(--gqb-line);vertical-align:top}
.gqb-col th{font-weight:700;color:var(--gqb-ink);background:var(--gqb-sand)}
.gqb-tablewrap{overflow-x:auto}
.gqb-col a{word-break:break-word}
.gqb-cta{display:inline-flex;align-items:center;min-height:48px;padding:0 22px;background:var(--gqb-brick);color:#fff;border-radius:999px;text-decoration:none;font-weight:700}
.gqb-cta:hover{background:var(--gqb-brick-dk);color:#fff}
.gqb-next{display:flex;flex-wrap:wrap;gap:10px 22px;margin:26px 0 8px;padding:16px 0 0;border-top:3px solid var(--gqb-ink)}
.gqb-next a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:48px;font-weight:600}
/* hero */
.gqb-hero{background:var(--gqb-ink);color:#efebe7;position:relative;overflow:hidden}
.gqb-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:8px;background:linear-gradient(90deg,var(--gqb-cyan) 0 38%,var(--gqb-orange) 38% 58%,var(--gqb-brick) 58%)}
.gqb-hero-in{max-width:1120px;margin:0 auto;padding:46px 24px 38px}
.gqb-hero h1{color:#fff;font-size:clamp(42px,6vw,72px);max-width:980px;margin-bottom:.3em}
.gqb-lede{font-size:19px;line-height:1.55;max-width:800px;color:#e9e4df;margin-bottom:22px}
.gqb-search{display:flex;background:#fff;border-radius:999px;padding:6px;max-width:900px;box-shadow:0 6px 24px rgba(0,0,0,.25)}
.gqb-search input{flex:1;min-width:0;border:0;background:transparent;font:inherit;font-size:18px;color:var(--gqb-ink);padding:0 18px;min-height:52px;border-radius:999px}
.gqb-search input:focus{outline:none}
.gqb-search:focus-within{outline:3px solid var(--gqb-orange);outline-offset:3px}
.gqb-search button{flex:none;border:0;background:var(--gqb-brick);color:#fff;font:700 17px/1 var(--gqb-body);padding:0 28px;min-height:52px;border-radius:999px;cursor:pointer}
.gqb-search button:hover{background:var(--gqb-brick-dk)}
.gqb-vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.gqb-hint{font-size:14.5px;color:#cfc8c1;margin:12px 0 0 6px}
.gqb-strip{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:4px 26px}
.gqb-strip li{margin:0}
.gqb-strip a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:48px;color:#fff;font-weight:600;font-size:15.5px}
.gqb-strip a:hover{color:var(--gqb-cyan)}
/* wall */
.gqb-wall{max-width:1120px;margin:0 auto;padding:30px 24px 8px}
.gqb-wall-h{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap}
.gqb-wall-h p{margin:0;color:var(--gqb-muted);font-size:15.5px}
.gqb-tiles{list-style:none;margin:14px 0 0;padding:0;display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:12px}
.gqb-tiles li{margin:0}
.gqb-tile{display:block;text-decoration:none;color:var(--gqb-ink);border:1px solid var(--gqb-line);border-radius:var(--gqb-r);overflow:hidden;background:#fff;height:100%}
.gqb-tile img{width:100%;aspect-ratio:1/1;object-fit:contain;background:#fff}
.gqb-tile span{display:block;padding:8px 9px 9px;font-weight:700;font-size:14.5px;line-height:1.25;border-top:3px solid var(--gqb-cyan)}
.gqb-tile small{display:block;font-weight:400;color:var(--gqb-muted);font-size:12.5px;margin-top:2px}
.gqb-tile:hover span{border-top-color:var(--gqb-brick)}
.gqb-wall-foot{margin:14px 0 0;font-size:15.5px}
.gqb-wall-foot a{display:inline-flex;align-items:center;min-height:44px;font-weight:700}
/* home sections */
.gqb-band{max-width:1120px;margin:0 auto;padding:44px 24px 12px}
.gqb-band>.gqb-col{padding:0}
.gqb-toc{list-style:none;margin:16px 0 0;padding:0;columns:2;column-gap:44px}
.gqb-toc li{break-inside:avoid;margin:0 0 4px}
.gqb-toc a{display:grid;grid-template-columns:52px 1fr;gap:4px 10px;padding:10px 0;border-bottom:1px dotted #bdb5ad;text-decoration:none;color:var(--gqb-text);min-height:44px}
.gqb-toc b{grid-row:span 2;font:400 34px/1 var(--gqb-display);color:var(--gqb-cyan-ink)}
.gqb-toc span{font-weight:700;color:var(--gqb-ink)}
.gqb-toc small{font-size:14.5px;color:var(--gqb-muted)}
.gqb-toc a:hover span{color:var(--gqb-brick)}
/* steps */
.gqb-step{position:relative}
.gqb-stepno{display:inline-flex;width:46px;height:46px;border-radius:50%;background:var(--gqb-brick);color:#fff;align-items:center;justify-content:center;font:400 30px/1 var(--gqb-display);margin-bottom:10px}
.gqb-step.gqb-z .gqb-stepno{background:var(--gqb-ink)}
.gqb-route{list-style:none;padding:0;margin:14px 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 22px;counter-reset:r}
.gqb-route li{margin:0;padding:4px 0 4px 40px;position:relative;border-bottom:1px solid var(--gqb-line)}
.gqb-route li::before{counter-increment:r;content:counter(r);position:absolute;left:0;top:12px;width:28px;height:28px;border-radius:50%;background:var(--gqb-brick);color:#fff;font:400 19px/28px var(--gqb-display);text-align:center}
.gqb-route a{display:flex;align-items:center;min-height:44px;text-decoration:none;color:var(--gqb-text)}
.gqb-route a:hover{color:var(--gqb-brick)}
/* shelves (spreadsheet page) */
.gqb-shelf{list-style:none;margin:12px 0 16px;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px}
.gqb-shelf li{margin:0;border-bottom:1px solid var(--gqb-line)}
.gqb-shelf a{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:46px;text-decoration:none;color:var(--gqb-ink);font-weight:600}
.gqb-shelf a:hover{color:var(--gqb-brick)}
.gqb-shelf em{font-style:normal;font-weight:400;color:var(--gqb-muted);font-size:14.5px;white-space:nowrap}
.gqb-words{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:8px 0 16px}
.gqb-words li{margin:0}
.gqb-words a{display:inline-flex;align-items:center;min-height:44px;padding:0 14px;border:1px solid var(--gqb-line);border-radius:999px;text-decoration:none;color:var(--gqb-ink);font-size:15px;background:var(--gqb-paper)}
.gqb-words a:hover{border-color:var(--gqb-brick);color:var(--gqb-brick)}
/* tools */
.gqb-tool{border:2px solid var(--gqb-ink);border-radius:var(--gqb-r);padding:20px 22px;margin:20px 0;background:var(--gqb-paper)}
.gqb-tool .gqb-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px 16px;margin-bottom:14px}
.gqb-tool label{display:block;font-size:14.5px;font-weight:700;color:var(--gqb-ink);margin-bottom:4px}
.gqb-tool input,.gqb-tool select{width:100%;font:inherit;font-size:16px;min-height:46px;padding:0 12px;border:1px solid #b9b2ab;border-radius:6px;background:#fff;color:var(--gqb-ink)}
.gqb-tool button{min-height:46px;padding:0 22px;border:0;border-radius:999px;background:var(--gqb-brick);color:#fff;font:700 16px/1 var(--gqb-body);cursor:pointer}
.gqb-tool button:hover{background:var(--gqb-brick-dk)}
.gqb-out{margin-top:14px;padding:12px 14px;background:#fff;border-left:5px solid var(--gqb-cyan-ink);border-radius:4px;min-height:52px}
.gqb-out p{margin:0 0 .3em}
/* faq */
.gqb-qa{border-bottom:1px solid var(--gqb-line)}
.gqb-qa summary{cursor:pointer;min-height:48px;display:flex;align-items:center;font-weight:700;color:var(--gqb-ink);padding:8px 28px 8px 0;position:relative;list-style:none}
.gqb-qa summary::-webkit-details-marker{display:none}
.gqb-qa summary::after{content:"+";position:absolute;right:4px;font:400 26px/1 var(--gqb-display);color:var(--gqb-brick)}
.gqb-qa[open] summary::after{content:"-"}
.gqb-qa>div{padding:0 0 12px}
/* a-z */
.gqb-az{columns:2;column-gap:40px}
.gqb-az dt{font:400 30px/1 var(--gqb-display);color:var(--gqb-orange-ink);margin:16px 0 4px;break-after:avoid}
.gqb-az dd{margin:0;break-inside:avoid}
.gqb-az dd a{display:inline-flex;min-height:44px;min-width:44px;align-items:center}
/* footer */
.gqb-foot{background:#222;color:#cccccc;margin-top:56px;padding:40px 0 32px;font-size:15px}
.gqb-foot .gqb-wrap{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,2fr);gap:34px}
.gqb-fname{font:400 26px/1.05 var(--gqb-display);letter-spacing:.6px;color:#fff}
.gqb-foot a{color:#fff}
.gqb-foot a:hover{color:var(--gqb-cyan)}
.gqb-fcols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.gqb-fh{font:400 18px/1.1 var(--gqb-display);letter-spacing:1.2px;color:var(--gqb-cyan);margin-bottom:8px}
.gqb-fcol ul{list-style:none;margin:0;padding:0}
.gqb-fcol li{margin:0}
.gqb-fcol a{display:flex;align-items:center;min-height:44px;text-decoration:none;line-height:1.3}
/* responsive */
@media (max-width:1100px){
 .gqb-brand-t{display:none}
}
@media (max-width:980px){
 .gqb-head-in{flex-wrap:wrap;gap:0;padding-top:8px}
 .gqb-nav{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
 .gqb-nav ul{width:max-content}
 .gqb-nav a{flex:none}
 .gqb-brand-t{display:block}
 .gqb-tiles{grid-template-columns:repeat(4,minmax(0,1fr))}
 .gqb-foot .gqb-wrap{grid-template-columns:1fr}
}
@media (max-width:700px){
 body{font-size:16.5px}
 .gqb-top-r{display:none}
 .gqb-top-in{min-height:34px;padding-top:4px;padding-bottom:4px}
 .gqb-hero-in{padding:30px 18px 28px}
 .gqb-wrap,.gqb-col,.gqb-wall,.gqb-band{padding-left:18px;padding-right:18px}
 .gqb-band>.gqb-col{padding:0}
 .gqb-crumbs,.gqb-run{padding-left:18px;padding-right:18px}
 .gqb-search{flex-direction:column;border-radius:16px;gap:6px}
 .gqb-search input{min-height:50px}
 .gqb-search button{width:100%}
 .gqb-tiles{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
 .gqb-tile{display:flex;align-items:center}
 .gqb-tile img{width:64px;flex:none}
 .gqb-tile span{border-top:0;border-left:3px solid var(--gqb-cyan);font-size:14px;padding:6px 8px}
 .gqb-toc,.gqb-az{columns:1}
 .gqb-route,.gqb-shelf{grid-template-columns:1fr}
 .gqb-fcols{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
/* shelf census, errata versions, step headings */
.gqb-count{font:400 20px/1 var(--gqb-display);letter-spacing:1px;color:var(--gqb-muted);margin-left:8px}
.gqb-shelfnotes{list-style:none;padding:0;margin:10px 0 4px;font-size:15.5px;color:var(--gqb-muted)}
.gqb-shelfnotes li{padding:5px 0;border-bottom:1px solid var(--gqb-line)}
.gqb-shelfnotes li:last-child{border-bottom:0}
.gqb-versions{list-style:none;padding:0;margin:10px 0 16px}
.gqb-versions li{padding:11px 14px;background:var(--gqb-sand);border-left:6px solid var(--gqb-orange);border-radius:4px;margin-bottom:8px;font-size:16px;line-height:1.45}
.gqb-versions strong{color:var(--gqb-orange-ink)}
/* 375/768: a 1120px figure scaled to the column is 30% and the words inside it stop being words.
   Keep the picture at a readable size and let the figure scroll sideways instead; the caption stays put. */
@media (max-width:700px){
 .gqb-fig{overflow-x:auto;overscroll-behavior-x:contain}
 .gqb-fig img{width:720px;max-width:none}
 .gqb-fig figcaption{position:sticky;left:0;width:calc(100vw - 40px)}
}

@media(max-width:700px){.gqb-nav{overflow:visible}.gqb-nav ul{width:100%;flex-wrap:wrap;gap:0}.gqb-nav a{min-height:44px;padding:8px 10px}}