/* gridpaperpdf.com - blueprint theme */
@font-face{font-family:"Archivo";src:url("/assets/fonts/archivo-latin-wdth-normal.woff2") format("woff2");font-weight:100 900;font-stretch:62% 125%;font-style:normal;font-display:swap}
@font-face{font-family:"Public Sans";src:url("/assets/fonts/public-sans-latin-wght-normal.woff2") format("woff2");font-weight:100 900;font-style:normal;font-display:swap}

:root{
  --page:#f4f6f9; --sheet:#fff; --ink:#0a1f3a; --ink2:#3d4f69; --ink3:#5f6f88;
  --rule:#d5dce8; --rule2:#e6ebf3; --bp:#0b2f57; --bp2:#0e3b6b; --line:rgba(150,205,255,.16); --line2:rgba(150,205,255,.34);
  --link:#0b5cad; --link-d:#08437f; --amber:#ffb703; --amber-d:#f0a500; --cyan:#8fd3ff; --hi:#fff1bf;
  --max:1180px; --r:2px;
  --head:"Archivo",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --body:"Public Sans",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--page);color:var(--ink);font:400 16.5px/1.7 var(--body);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:var(--link);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--link-d);text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px;box-shadow:0 0 0 5px var(--bp)}
h1,h2,h3,h4{font-family:var(--head);color:var(--ink);line-height:1.1;letter-spacing:-.015em;margin:0 0 .5em;font-weight:750;font-stretch:92%}
h1{font-size:clamp(2.2rem,5vw,3.7rem);font-weight:850;font-stretch:88%;letter-spacing:-.025em}
h2{font-size:clamp(1.5rem,3vw,2.05rem)}
h3{font-size:1.2rem}
p{margin:0 0 1.1em}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:8px;background:var(--amber);color:var(--ink);padding:10px 14px;z-index:99;font:700 1rem var(--head)}
.skip:focus{left:8px}

/* ---------- header ---------- */
.site-head{background:var(--bp);color:#fff;position:relative;z-index:20;border-bottom:3px solid var(--amber)}
.head-in{display:flex;align-items:center;gap:20px;min-height:62px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff;font:850 1.22rem/1 var(--head);font-stretch:90%;letter-spacing:-.01em}
.brand:hover{color:#fff}
.brand svg{width:30px;height:30px;flex:none}
.brand b{color:var(--amber);font-weight:850}
.nav-toggle{display:none;margin-left:auto;background:transparent;border:1px solid var(--line2);border-radius:var(--r);height:42px;padding:0 14px;font:700 .95rem var(--head);color:#fff;cursor:pointer}
#site-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
#site-nav a,.menu-btn{font:650 .96rem var(--head);color:#e8f2ff;text-decoration:none;padding:10px 12px;border-radius:var(--r);background:none;border:0;cursor:pointer}
#site-nav a:hover,.menu-btn:hover{background:rgba(255,255,255,.1);color:#fff}
#site-nav a[aria-current="page"]{box-shadow:inset 0 -3px 0 var(--amber);border-radius:0;color:#fff}
.menu-wrap{position:relative}
.menu-btn::after{content:"";display:inline-block;margin-left:8px;border:5px solid transparent;border-top-color:currentColor;border-bottom:0;vertical-align:2px}
.menu-panel{position:absolute;right:0;top:calc(100% + 10px);width:min(600px,92vw);background:#fff;border:1px solid var(--rule);border-top:4px solid var(--amber);box-shadow:0 20px 40px -18px rgba(5,20,45,.55);padding:10px;display:grid;grid-template-columns:1fr 1fr;gap:2px;z-index:30}
.menu-panel[hidden]{display:none}
#site-nav .menu-panel a{display:block;padding:9px 12px;color:var(--ink)}
#site-nav .menu-panel a:hover{background:var(--page);color:var(--ink)}
.menu-panel small{display:block;font:400 .8rem/1.3 var(--body);color:var(--ink3);margin-top:2px}

/* ---------- hero (blueprint) ---------- */
.hero{position:relative;background:var(--bp);color:#fff;overflow:hidden;border-bottom:1px solid #06203d}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px),linear-gradient(var(--line2) 1px,transparent 1px),linear-gradient(90deg,var(--line2) 1px,transparent 1px);
  background-size:20px 20px,20px 20px,100px 100px,100px 100px}
.hero-in{position:relative;z-index:1;display:grid;gap:44px;grid-template-columns:minmax(0,1fr) minmax(0,480px);align-items:center;padding:56px 20px 64px}
.hero h1{color:#fff;margin-bottom:.4em;max-width:14ch}
.hero h1 em{font-style:normal;color:var(--amber)}
.hero .lead{font-size:1.15rem;line-height:1.6;max-width:33em;color:#d6e8fb;margin:0 0 1.5em}
.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.hero-facts{display:flex;flex-wrap:wrap;gap:6px 22px;margin:0;padding:0;list-style:none;font:650 .92rem var(--head);color:#bcd8f5}
.hero-facts li::before{content:"";display:inline-block;width:8px;height:8px;border:2px solid var(--amber);margin-right:9px;vertical-align:0}

/* quick-download card */
.qcard{background:#fff;color:var(--ink);border-top:5px solid var(--amber);box-shadow:8px 8px 0 rgba(4,18,40,.45);padding:20px 20px 18px}
.qcard h2{font-size:1.2rem;margin:0 0 14px;display:flex;align-items:center;gap:8px}
.qcard h2::before{content:"";width:10px;height:10px;background:var(--amber);flex:none}
.q-grid{display:grid;grid-template-columns:1.25fr 1.3fr 1fr;gap:10px;margin-bottom:12px}
.q-grid label{display:block;font:650 .78rem/1.2 var(--head);color:var(--ink2);margin-bottom:4px;text-transform:uppercase;letter-spacing:.04em}
.q-grid select{width:100%;height:40px;border:1px solid #a3b1c8;border-radius:var(--r);background:#fff;padding:0 8px;font:550 .93rem var(--head);color:var(--ink)}
.q-presets{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.q-body{display:grid;grid-template-columns:132px 1fr;gap:16px;align-items:start}
.q-sheet{--ar:.7727;width:132px;aspect-ratio:var(--ar);background:#fff;border:1px solid var(--rule);box-shadow:3px 3px 0 var(--rule2);overflow:hidden}
.q-sheet svg{display:block;width:100%;height:100%}
.q-actions{display:flex;flex-direction:column;gap:8px}
.q-actions .btn{width:100%}
.q-status{min-height:1.3em;margin:2px 0 0;font:550 .85rem var(--head);color:var(--ink2)}

/* ---------- buttons and chips ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 18px;border:2px solid var(--ink);border-radius:var(--r);background:#fff;color:var(--ink);font:700 .96rem var(--head);cursor:pointer;text-decoration:none}
.btn:hover{background:var(--ink);color:#fff}
.btn-primary{background:var(--amber);border-color:var(--amber);color:var(--ink)}
.btn-primary:hover{background:var(--amber-d);border-color:var(--amber-d);color:var(--ink)}
.hero-copy .btn:not(.btn-primary){background:transparent;border-color:#bcd8f5;color:#fff}
.hero-copy .btn:not(.btn-primary):hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:#000;border-color:#000}
.btn-quiet{background:none;border-color:transparent;color:var(--ink2);text-decoration:underline;text-underline-offset:3px}
.btn-quiet:hover{background:none;color:var(--ink)}
.chip{font:650 .84rem/1 var(--head);background:#fff;color:var(--ink);border:1px solid #a3b1c8;border-radius:var(--r);padding:9px 11px;cursor:pointer}
.chip:hover{border-color:var(--ink)}
.chip[aria-pressed="true"]{background:var(--bp);border-color:var(--bp);color:#fff}

/* ---------- sections ---------- */
.section{padding:60px 0}
.section.tight{padding:40px 0}
.section.white{background:#fff;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.section.blue{background:var(--bp);color:#d6e8fb}
.section.blue h2,.section.blue h3{color:#fff}
.section-head{max-width:46em;margin-bottom:30px}
.section-head h2{position:relative;padding-top:16px}
.section-head h2::before{content:"";position:absolute;top:0;left:0;width:44px;height:5px;background:var(--amber)}
.section-head p{color:var(--ink2);margin:0}

.catalog{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:34px 24px;list-style:none;margin:0;padding:0}
.cat-item{display:block;text-decoration:none;color:var(--ink)}
.cat-item:hover{color:var(--ink)}
.cat-item:hover .cat-title{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px}
.cat-item:hover .thumb{border-color:var(--bp);transform:translateY(-2px)}
.thumb{display:block;aspect-ratio:8.5/11;background:#fff;border:1px solid #b9c5d9;margin-bottom:14px;box-shadow:5px 5px 0 var(--rule2);overflow:hidden;transition:transform .12s}
.thumb img{display:block;width:100%;height:100%;object-fit:cover}
.cat-title{display:block;font:750 1.08rem/1.2 var(--head);margin-bottom:4px}
.cat-desc{display:block;font-size:.9rem;line-height:1.5;color:var(--ink2)}

.steps{counter-reset:step;list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.steps li{counter-increment:step;position:relative;padding-top:50px}
.steps li::before{content:counter(step);position:absolute;top:0;left:0;width:38px;height:38px;background:var(--bp);color:var(--amber);display:grid;place-items:center;font:850 1.1rem var(--head)}
.steps h3{margin-bottom:.3em}
.steps p{color:var(--ink2);margin:0}

.features{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--rule);background:var(--rule);gap:1px}
.features div{background:#fff;padding:22px}
.features h3{font-size:1.05rem;margin-bottom:.35em}
.features p{font-size:.92rem;line-height:1.55;color:var(--ink2);margin:0}

/* PDF link grid */
.pdf-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:0 36px}
.pdf-grid li{border-top:1px solid var(--rule)}
.pdf-grid a{display:flex;justify-content:space-between;gap:12px;padding:13px 0;text-decoration:none;color:var(--ink);font:700 1rem var(--head)}
.pdf-grid a span{color:var(--ink3);font:400 .88rem var(--body);white-space:nowrap}
.pdf-grid a:hover{color:var(--link)}

.guide-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px;list-style:none;margin:0;padding:0}
.guide-list li{border-top:1px solid var(--rule);padding:18px 0}
.guide-list a{font:750 1.12rem/1.25 var(--head);text-decoration:none;color:var(--ink)}
.guide-list a:hover{color:var(--link);text-decoration:underline}
.guide-list p{margin:.35em 0 0;font-size:.94rem;line-height:1.55;color:var(--ink2)}

/* ---------- page heads and prose ---------- */
.crumbs{font:550 .86rem var(--head);color:var(--ink3);padding-top:18px}
.crumbs a{color:var(--ink2)}
.crumbs span{margin:0 7px;color:#9aa8bf}
.page-head{padding-top:14px;padding-bottom:26px}
.page-head h1{font-size:clamp(2rem,4.2vw,3rem);max-width:22ch}
.page-head .lead{font-size:1.12rem;line-height:1.6;color:var(--ink2);max-width:42em;margin:0}
.prose{max-width:740px}
.prose h2{margin-top:1.9em}
.prose h2:first-child{margin-top:0}
.prose h3{margin-top:1.5em}
.prose ul,.prose ol{padding-left:1.25em;margin:0 0 1.2em}
.prose li{margin-bottom:.45em}
.prose strong{font-weight:650}
.prose table{border-collapse:collapse;width:100%;margin:0 0 1.4em;font-size:.94rem;line-height:1.45}
.prose th,.prose td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--rule);vertical-align:top}
.prose th{font:750 .9rem var(--head);background:#fff;border-bottom:2px solid var(--bp)}
.tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.note{background:var(--hi);border-left:5px solid var(--amber);padding:14px 18px;margin:0 0 1.4em;font-size:.96rem;line-height:1.6}
.note p:last-child{margin:0}
.article-meta{font:550 .9rem var(--head);color:var(--ink3);margin:0 0 1.6em}
.dl-table td:last-child,.dl-table td:nth-child(n+2){white-space:nowrap}

.faq details{border-top:1px solid var(--rule)}
.faq details:last-child{border-bottom:1px solid var(--rule)}
.faq summary{cursor:pointer;list-style:none;padding:16px 36px 16px 0;font:750 1.05rem/1.35 var(--head);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:12px;font:400 1.6rem/1 var(--head);color:var(--ink3)}
.faq details[open] summary::after{content:"\2212"}
.faq details p{margin:0 0 16px;color:var(--ink2);max-width:46em}

/* ---------- landing pages ---------- */
.dl-hero{display:grid;grid-template-columns:minmax(0,1fr) 150px;gap:30px;align-items:start;background:#fff;border:1px solid var(--rule);border-top:5px solid var(--amber);padding:22px 24px;margin-bottom:34px}
.dl-hero h2{font-size:1.3rem;margin:0 0 6px}
.dl-hero p{color:var(--ink2);margin:0 0 14px;font-size:.96rem}
.dl-btns{display:flex;flex-wrap:wrap;gap:10px}
.dl-btns .btn{min-width:170px}
.dl-thumb{display:block;aspect-ratio:8.5/11;border:1px solid #b9c5d9;box-shadow:4px 4px 0 var(--rule2);overflow:hidden;background:#fff}
.dl-thumb img{display:block;width:100%;height:100%;object-fit:cover}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule);margin:0 0 1.6em}
.stats div{background:#fff;padding:14px 16px}
.stats dt{font:650 .76rem/1.2 var(--head);color:var(--ink3);text-transform:uppercase;letter-spacing:.05em;margin:0 0 4px}
.stats dd{margin:0;font:800 1.35rem/1.15 var(--head);color:var(--bp)}
.stats dd small{display:block;font:400 .8rem/1.3 var(--body);color:var(--ink3);margin-top:3px}

/* ---------- generator ---------- */
.tool{display:grid;grid-template-columns:minmax(0,350px) minmax(0,1fr);gap:26px;align-items:start;margin-bottom:8px}
.tool-controls{background:#fff;border:1px solid var(--rule);border-top:4px solid var(--bp);padding:16px 16px 12px}
.tool-controls:empty::before{content:"Loading the options…";color:var(--ink3);font:550 .95rem var(--head)}
.unit-switch{display:flex;margin-bottom:14px;border:1px solid #a3b1c8;border-radius:var(--r);overflow:hidden}
.unit-switch button{flex:1;height:36px;border:0;background:#fff;font:700 .9rem var(--head);color:var(--ink2);cursor:pointer}
.unit-switch button+button{border-left:1px solid #a3b1c8}
.unit-switch button[aria-pressed="true"]{background:var(--bp);color:#fff}
.ctl-title{font:750 .95rem var(--head);margin:0 0 8px}
.presets{margin-bottom:12px;padding-bottom:14px;border-bottom:1px solid var(--rule)}
.preset-row{display:flex;flex-wrap:wrap;gap:6px}
.preset-row .chip{padding:8px 10px;font-size:.82rem}
.grp{border-bottom:1px solid var(--rule);padding:2px 0 8px}
.grp summary{cursor:pointer;font:750 1rem var(--head);padding:12px 0 8px;list-style:none;display:flex;justify-content:space-between;align-items:center}
.grp summary::-webkit-details-marker{display:none}
.grp summary::after{content:"";border:5px solid transparent;border-top-color:var(--ink3);border-bottom:0;transition:transform .15s}
.grp[open] summary::after{transform:rotate(180deg)}
.ctl{margin:0 0 12px}
.ctl[hidden]{display:none}
.ctl>label{display:block;font:650 .86rem/1.3 var(--head);color:var(--ink2);margin-bottom:5px}
.ctl select,.ctl input[type="number"],.ctl input[type="text"]{width:100%;height:40px;border:1px solid #a3b1c8;border-radius:var(--r);background:#fff;padding:0 10px;font:550 .96rem var(--head);color:var(--ink)}
.ctl input[type="color"]{width:60px;height:38px;padding:2px;border:1px solid #a3b1c8;border-radius:var(--r);background:#fff;cursor:pointer}
.inp{display:flex;align-items:center;gap:8px}
.inp .unit{font:550 .85rem var(--head);color:var(--ink3);min-width:2.2em}
.ctl .chk{display:flex;gap:10px;align-items:center;font:650 .92rem var(--head);color:var(--ink);cursor:pointer;margin:0}
.ctl .chk input{width:18px;height:18px;accent-color:var(--bp)}
.help{margin:5px 0 0;font:400 .8rem/1.45 var(--body);color:var(--ink3)}
.reset{margin-top:6px;height:36px;padding:0}

.tool-stage{min-width:0}
.tool-bar{display:flex;flex-wrap:wrap;gap:12px 22px;align-items:center;justify-content:space-between;margin-bottom:14px}
.bar-main{display:flex;flex-wrap:wrap;gap:8px}
.bar-opts{display:flex;align-items:center;gap:8px;font:550 .88rem var(--head);color:var(--ink2)}
.bar-opts input,.bar-opts select{height:36px;border:1px solid #a3b1c8;border-radius:var(--r);background:#fff;font:550 .9rem var(--head);padding:0 8px}
.bar-opts input{width:62px}
.bar-opts label+input,.bar-opts select{margin-right:10px}
.sheet-wrap{background:#c9d5e6;border:1px solid var(--rule);padding:clamp(12px,3vw,28px);display:flex;justify-content:center}
.sheet{--ar:.7727;width:min(100%,calc((100vh - 190px) * var(--ar)));min-width:min(100%,260px);aspect-ratio:var(--ar);background:#fff;box-shadow:0 1px 2px rgba(5,20,45,.3),0 14px 34px -14px rgba(5,20,45,.6)}
.sheet svg,.sheet img{display:block;width:100%;height:100%}
.status{min-height:1.5em;margin:12px 0 0;font:550 .92rem var(--head);color:var(--ink2)}
.ad-slot{margin:26px 0;text-align:center}
#fpp-print-root{display:none}

/* ---------- contact form ---------- */
.form{max-width:620px;display:grid;gap:16px}
.form label{display:block;font:650 .92rem var(--head);margin-bottom:6px}
.form input,.form textarea,.form select{width:100%;border:1px solid #a3b1c8;border-radius:var(--r);background:#fff;padding:11px 12px;font:400 1rem var(--body);color:var(--ink)}
.form textarea{min-height:170px;resize:vertical}
.form .hp{position:absolute;left:-5000px;height:0;overflow:hidden}
.form-note{padding:12px 16px;border-left:5px solid;margin:0 0 20px;font:600 .98rem/1.5 var(--head)}
.form-note.ok{background:#e4f4ea;border-color:#2c8a4b}
.form-note.bad{background:#fdebe8;border-color:#c8402f}

/* ---------- footer ---------- */
.site-foot{background:#071b33;color:#b7c9e0;margin-top:70px;padding:48px 0 28px;font-size:.94rem;line-height:1.6;border-top:3px solid var(--amber)}
.site-foot a{color:#e6f1ff;text-decoration:none}
.site-foot a:hover{text-decoration:underline;color:#fff}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.site-foot h2{font:750 .9rem var(--head);color:var(--amber);margin:0 0 12px;text-transform:uppercase;letter-spacing:.08em}
.site-foot ul{list-style:none;margin:0;padding:0}
.site-foot li{margin-bottom:7px}
.foot-brand{font:850 1.2rem var(--head);color:#fff;margin:0 0 10px}
.foot-note{margin-top:34px;padding-top:20px;border-top:1px solid #1c3558;font-size:.85rem;color:#8da3c2}

/* ---------- responsive ---------- */
@media (max-width:1020px){
  .tool{grid-template-columns:1fr}
  .tool-stage{order:-1}
  .sheet{width:min(100%,520px)}
  .features{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero-in{grid-template-columns:1fr;padding:40px 20px 48px}
  .hero h1{max-width:none}
  .qcard{max-width:560px}
}
@media (max-width:860px){
  .steps,.pdf-grid,.guide-list{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .nav-toggle{display:inline-block}
  #site-nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--bp);border-bottom:3px solid var(--amber);flex-direction:column;align-items:stretch;padding:8px 16px 16px;margin:0}
  #site-nav.open{display:flex}
  #site-nav a,.menu-btn{padding:13px 8px;text-align:left}
  .menu-wrap{position:static}
  .menu-panel{position:static;width:auto;box-shadow:none;background:transparent;border:0;border-left:3px solid var(--line2);margin:0 0 6px 8px;grid-template-columns:1fr}
  #site-nav .menu-panel a{color:#e8f2ff}
  #site-nav .menu-panel a:hover{background:rgba(255,255,255,.1);color:#fff}
  .menu-panel small{color:#9db8d8}
  .dl-hero{grid-template-columns:1fr}
  .dl-thumb{display:none}
}
@media (max-width:560px){
  body{font-size:16px}
  .features{grid-template-columns:1fr}
  .catalog{grid-template-columns:repeat(2,1fr);gap:28px 16px}
  .foot-grid{grid-template-columns:1fr}
  .tool-bar{flex-direction:column;align-items:stretch}
  .bar-main .btn{flex:1}
  .q-grid{grid-template-columns:1fr 1fr}
  .q-body{grid-template-columns:96px 1fr}
  .q-sheet{width:96px}
  .dl-btns .btn{flex:1;min-width:0}
}

/* ---------- printing the generated sheet ---------- */
@media print{
  body.fpp-printing{background:#fff!important}
  body.fpp-printing>*:not(#fpp-print-root){display:none!important}
  body.fpp-printing #fpp-print-root{display:block!important;overflow:hidden}
  body.fpp-printing #fpp-print-root svg{display:block}
  html{background:#fff}
}
@media print{
  body:not(.fpp-printing) .site-head,body:not(.fpp-printing) .site-foot,body:not(.fpp-printing) .tool,body:not(.fpp-printing) .ad-slot{display:none}
}

.sr{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
#fpp-preview,#hero-preview{width:100%;height:100%}