/* ================================================================
   jeffreyjorgensen.dev — "Blueprint" design system
   One stylesheet, all pages. Committed single visual world:
   engineering-drawing grid paper, ink borders, blue annotation.
   ================================================================ */
:root{
  --ink:#0a1622;--ink-soft:#26333f;
  --paper:#eef3f7;--paper-2:#e5ecf1;--fill:#eef3f7;
  --grid:#d6e0e9;--grid-2:#e7eef3;
  --blue:#1f6feb;--blue-dim:#dbe7fb;--blue-ink:#0f4bb0;
  --red:#d6402e;--red-dim:#fbe1dd;
  --mut:#5a6b7b;--mut-2:#7d8b98;
  --ok:#137a53;
  --sheet-max:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;color:var(--ink);background:var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:27px 27px;
  font-family:"JetBrains Mono",ui-monospace,Menlo,monospace;
  font-size:15.5px;line-height:1.62;-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility}
.gridpaper{position:relative}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{font-family:"Archivo","Montserrat",sans-serif;margin:0;text-wrap:balance;letter-spacing:-.02em}
p{margin:0}
.wrap{max-width:var(--sheet-max);margin:0 auto;padding:0 clamp(16px,4vw,44px)}
.lab{font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--mut);font-weight:500}
.blue{color:var(--blue)}.red{color:var(--red)}
.mono{font-family:"JetBrains Mono",ui-monospace,monospace}
.tnum{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* skip link */
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:200}
.skip:focus{left:8px;top:8px}

/* ---------------- Title-block header (nav + lang) ---------------- */
.site-head{position:sticky;top:0;z-index:60;background:var(--paper)}
.titleblock{border:2px solid var(--ink);background:var(--fill);margin-top:14px;
  display:grid;grid-template-columns:auto 1fr auto;align-items:stretch}
.titleblock>*{border-right:2px solid var(--ink)}
.titleblock>*:last-child{border-right:0}
.tb-id{padding:11px 18px;text-decoration:none;display:flex;flex-direction:column;justify-content:center}
.tb-id .n{font-family:"Archivo","Montserrat",sans-serif;font-weight:800;font-size:16px;letter-spacing:-.01em;line-height:1}
.tb-id .r{font-size:10px;color:var(--mut);margin-top:5px;text-transform:uppercase;letter-spacing:.09em}
.tb-nav{display:flex;align-items:stretch}
.tb-nav a{display:flex;align-items:center;padding:0 clamp(12px,2vw,22px);text-decoration:none;
  font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);
  border-left:2px solid var(--grid);transition:.15s}
.tb-nav a:first-child{border-left:0}
.tb-nav a:hover{background:var(--blue-dim);color:var(--blue-ink)}
.tb-nav a[aria-current="page"]{background:var(--ink);color:#fff}
.tb-lang{display:flex;align-items:center;padding:0 16px;gap:8px;font-size:11.5px;letter-spacing:.06em}
.tb-lang a{text-decoration:none;color:var(--mut);padding:4px 6px}
.tb-lang a[aria-current="true"]{color:var(--ink);font-weight:700;border-bottom:2px solid var(--blue)}
.tb-menu{display:none}
@media(max-width:860px){
  .titleblock{grid-template-columns:1fr auto}
  .tb-nav{grid-column:1/-1;border-top:2px solid var(--ink);border-right:0;order:3;overflow-x:auto}
  .tb-nav a{border-left:2px solid var(--grid);white-space:nowrap;padding:13px 16px}
}

/* ---------------- Sheet label row ---------------- */
.sheet-tag{display:inline-block;border:2px solid var(--ink);background:var(--fill);
  padding:5px 12px;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-soft)}

/* ---------------- Hero ---------------- */
.hero{padding:clamp(38px,6vw,78px) 0 clamp(26px,4vw,46px)}
.hero .lab{margin:20px 0 16px}
.hero h1{font-weight:900;font-size:clamp(36px,7vw,86px);line-height:.98}
.hero h1 em{font-style:normal;color:var(--blue);box-shadow:inset 0 -.14em 0 var(--blue)}
.hero .lead{max-width:60ch;margin:22px 0 0;font-size:15.5px;color:var(--ink-soft)}
.hero .cta-row{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;text-decoration:none;
  font-size:12.5px;letter-spacing:.05em;text-transform:uppercase;font-weight:500;
  border:2px solid var(--ink);padding:12px 20px;background:var(--fill);color:var(--ink);transition:.15s}
.btn:hover{background:var(--ink);color:#fff}
.btn.pri{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.pri:hover{background:var(--blue-ink);border-color:var(--blue-ink)}

/* ---------------- Reconciliation diagram (signature) ---------------- */
.diagram{margin-top:clamp(30px,5vw,50px);border:2px solid var(--ink);background:var(--fill);position:relative;
  padding:clamp(24px,4vw,42px)}
.cnr{position:absolute;width:11px;height:11px;border:2px solid var(--ink)}
.cnr.tl{top:-2px;left:-2px;border-right:0;border-bottom:0}
.cnr.tr{top:-2px;right:-2px;border-left:0;border-bottom:0}
.cnr.bl{bottom:-2px;left:-2px;border-right:0;border-top:0}
.cnr.br{bottom:-2px;right:-2px;border-left:0;border-top:0}
.diagram .dh{text-align:center;margin-bottom:20px}
.eq{display:flex;align-items:center;justify-content:center;gap:clamp(8px,1.6vw,18px);flex-wrap:wrap;text-align:center}
.node{border:2px solid var(--ink);background:#fff;padding:15px 18px;min-width:112px}
.node.on{border-color:var(--blue);background:var(--blue-dim)}
.node .v{font-family:"Archivo","Montserrat",sans-serif;font-weight:800;font-size:clamp(19px,3vw,28px);line-height:1;font-variant-numeric:tabular-nums}
.node .c{font-size:10px;color:var(--mut);margin-top:8px;text-transform:uppercase;letter-spacing:.1em}
.op{font-family:"Archivo","Montserrat",sans-serif;font-weight:800;font-size:clamp(20px,3vw,30px);color:var(--red)}
.op.eqs{color:var(--blue)}
.diagram .cap{margin-top:20px;text-align:center;font-size:11.5px;color:var(--mut)}
.diagram .cap .ok{color:var(--ok);font-weight:700}

/* ---------------- Section frame ---------------- */
.section{padding:clamp(38px,6vw,72px) 0}
.section>.lab{margin-bottom:10px}
.section h2{font-weight:800;font-size:clamp(24px,3.4vw,40px);line-height:1.05}
.section .sub{color:var(--ink-soft);margin:14px 0 0;max-width:64ch}
.hr{border:0;border-top:2px solid var(--ink);margin:0}

/* ---------------- Schedule of quantities (metrics) ---------------- */
.schedule{border:2px solid var(--ink);background:var(--fill);margin-top:26px;
  display:grid;grid-template-columns:repeat(4,1fr)}
.schedule .cell{padding:24px 20px;border-right:2px solid var(--ink)}
.schedule .cell:nth-child(4n){border-right:0}
.schedule .cell:nth-child(n+5){border-top:2px solid var(--ink)}
.schedule .cell .n{font-family:"Archivo","Montserrat",sans-serif;font-weight:900;font-size:clamp(28px,3.6vw,46px);line-height:1;
  letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.schedule .cell .n .s{color:var(--blue)}
.schedule .cell .l{font-size:11px;color:var(--mut);margin-top:12px;line-height:1.5;text-transform:uppercase;letter-spacing:.05em}
@media(max-width:820px){.schedule{grid-template-columns:repeat(2,1fr)}
  .schedule .cell:nth-child(4n){border-right:2px solid var(--ink)}
  .schedule .cell:nth-child(2n){border-right:0}
  .schedule .cell:nth-child(n+3){border-top:2px solid var(--ink)}}
@media(max-width:480px){.schedule{grid-template-columns:1fr}
  .schedule .cell{border-right:0!important;border-top:2px solid var(--ink)}
  .schedule .cell:first-child{border-top:0}}

/* ---------------- Parts list (domains) ---------------- */
.plist{border:2px solid var(--ink);margin-top:24px}
.prow{display:grid;grid-template-columns:74px 1fr 1.5fr;border-bottom:2px solid var(--ink)}
.prow:last-child{border-bottom:0}
.prow>div{padding:20px 18px;border-right:2px solid var(--ink)}
.prow>div:last-child{border-right:0}
.prow .id{font-family:"Archivo","Montserrat",sans-serif;font-weight:900;font-size:19px;color:var(--blue);background:var(--blue-dim);
  display:flex;align-items:center}
.prow .nm{font-family:"Archivo","Montserrat",sans-serif;font-weight:700;font-size:17px;align-self:center}
.prow .ds{color:var(--ink);font-size:14px}
.prow .ds .sp{display:block;margin-top:9px;font-size:10.5px;color:var(--mut);text-transform:uppercase;letter-spacing:.06em}
@media(max-width:680px){.prow{grid-template-columns:1fr}
  .prow>div{border-right:0;border-bottom:2px solid var(--grid)}
  .prow>div:last-child{border-bottom:0}}

/* ---------------- Case studies ---------------- */
.case{border:2px solid var(--ink);background:var(--fill);margin-top:26px}
.case .chead{display:grid;grid-template-columns:1fr auto;border-bottom:2px solid var(--ink)}
.case .chead .ct{padding:22px 24px}
.case .chead .ct .role{font-size:11px;color:var(--blue);text-transform:uppercase;letter-spacing:.12em;margin-bottom:10px}
.case .chead .ct h3{font-weight:800;font-size:clamp(19px,2.4vw,26px);line-height:1.12}
.case .chead .specs{display:grid;grid-template-columns:repeat(2,auto);border-left:2px solid var(--ink)}
.case .chead .specs .sp{padding:12px 20px;border-bottom:2px solid var(--grid);border-left:2px solid var(--grid);min-width:104px}
.case .chead .specs .sp:nth-child(-n+2){border-top:0}
.case .chead .specs .sp .k{font-size:9.5px;color:var(--mut);text-transform:uppercase;letter-spacing:.1em}
.case .chead .specs .sp .val{font-family:"Archivo","Montserrat",sans-serif;font-weight:800;font-size:19px;margin-top:4px;font-variant-numeric:tabular-nums}
.case .cbody{padding:24px}
.case .cbody p{color:var(--ink-soft);font-size:14.5px;margin-bottom:14px}
.case .cbody p:last-of-type{margin-bottom:0}
.case .stack{margin-top:18px;padding-top:16px;border-top:2px solid var(--grid);
  font-size:11.5px;color:var(--mut);line-height:1.9}
.case .stack b{color:var(--ink);font-weight:500}
@media(max-width:720px){.case .chead{grid-template-columns:1fr}
  .case .chead .specs{grid-template-columns:repeat(4,1fr);border-left:0;border-top:2px solid var(--ink)}
  .case .chead .specs .sp{border-left:2px solid var(--grid);min-width:0}
  .case .chead .specs .sp:first-child{border-left:0}}
@media(max-width:480px){.case .chead .specs{grid-template-columns:repeat(2,1fr)}}

/* figure (screenshot as annotated drawing) */
.figure{border:2px solid var(--ink);background:var(--fill);margin-top:22px}
.figure .fimg{border-bottom:2px solid var(--ink);background:var(--paper-2);padding:14px}
.figure .fimg img{margin:0 auto;border:1px solid var(--grid)}
.figure .fcap{padding:12px 18px;font-size:11.5px;color:var(--mut);display:flex;gap:12px}
.figure .fcap .fno{color:var(--blue);font-weight:700;flex:none;text-transform:uppercase;letter-spacing:.08em}

/* ---------------- Teardown items ---------------- */
.intro{padding:clamp(30px,4vw,50px) 0;border-top:2px solid var(--ink)}
.intro p{color:var(--ink-soft);margin-bottom:16px;max-width:66ch}
.pull{margin:24px 0;border:2px solid var(--blue);background:var(--blue-dim);padding:20px 24px;
  font-family:"Archivo","Montserrat",sans-serif;font-weight:700;font-size:clamp(17px,2vw,21px);line-height:1.35;color:var(--ink)}
.toc{border:2px solid var(--ink);background:var(--fill);margin-top:28px}
.toc .th{padding:12px 18px;border-bottom:2px solid var(--ink);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--mut)}
.toc ol{margin:0;padding:0;list-style:none;counter-reset:t}
.toc li{counter-increment:t;border-bottom:2px solid var(--grid)}
.toc li:last-child{border-bottom:0}
.toc a{display:grid;grid-template-columns:52px 1fr;text-decoration:none;color:var(--ink-soft);font-size:14px;transition:.14s}
.toc a::before{content:counter(t,decimal-leading-zero);padding:12px 0 12px 18px;color:var(--blue);font-weight:700}
.toc a>span{padding:12px 18px 12px 0}
.toc a:hover{background:var(--blue-dim);color:var(--blue-ink)}

.item{border-top:2px solid var(--ink);padding:clamp(28px,4vw,44px) 0}
.item .ihead{display:flex;gap:16px;align-items:baseline;margin-bottom:16px}
.item .ihead .num{font-family:"Archivo","Montserrat",sans-serif;font-weight:900;font-size:20px;color:var(--blue);flex:none;font-variant-numeric:tabular-nums}
.item .ihead h3{font-weight:800;font-size:clamp(19px,2.4vw,26px);line-height:1.12}
.item .ihead h3 span{display:block;font-family:"JetBrains Mono";font-size:12px;font-weight:400;color:var(--mut);
  letter-spacing:0;margin-top:7px;text-transform:none}
.item .ibody{color:var(--ink-soft);font-size:15px;max-width:70ch}
.row{margin:16px 0;border:2px solid var(--ink);background:var(--fill)}
.row .rl{padding:8px 16px;border-bottom:2px solid var(--grid);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase}
.row .rt{padding:14px 16px;font-size:14.5px;color:var(--ink-soft);line-height:1.55}
.row.sym .rl{color:var(--red);background:var(--red-dim)}
.row.fix .rl{color:var(--ok);background:#dff0e8}
.item code{font-family:"JetBrains Mono";font-size:.86em;background:var(--blue-dim);padding:1px 5px;color:var(--blue-ink)}
.note{margin-top:22px;border:2px dashed var(--ink);padding:16px 20px;font-size:13.5px;color:var(--mut)}
.note b{color:var(--ink)}

/* ---------------- FAQ ---------------- */
.faq{border:2px solid var(--ink);margin-top:24px}
.faq details{border-bottom:2px solid var(--ink)}
.faq details:last-child{border-bottom:0}
.faq summary{padding:18px 22px;cursor:pointer;font-family:"Archivo","Montserrat",sans-serif;font-weight:700;font-size:16px;
  list-style:none;display:flex;gap:14px;align-items:baseline;background:var(--fill)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"+";color:var(--blue);font-weight:800;font-size:18px}
.faq details[open] summary::before{content:"−"}
.faq details[open] summary{border-bottom:2px solid var(--grid)}
.faq .a{padding:18px 22px 20px 50px;color:var(--ink-soft);font-size:14.5px;background:var(--fill)}

/* ---------------- Stack table ---------------- */
.stackt{border:2px solid var(--ink);margin-top:24px}
.strow{display:grid;grid-template-columns:150px 1fr;border-bottom:2px solid var(--grid)}
.strow:last-child{border-bottom:0}
.strow .sk{padding:14px 18px;border-right:2px solid var(--ink);font-size:11px;text-transform:uppercase;letter-spacing:.09em;color:var(--blue);background:var(--blue-dim)}
.strow .sv{padding:14px 18px;font-size:13px;color:var(--ink-soft);background:var(--fill)}
@media(max-width:600px){.strow{grid-template-columns:1fr}.strow .sk{border-right:0;border-bottom:2px solid var(--grid)}}

/* ---------------- CTA ---------------- */
.cta-block{padding:clamp(40px,6vw,80px) 0 clamp(56px,7vw,96px)}
.cta-box{border:2px solid var(--ink);background:var(--ink);color:var(--paper);padding:clamp(28px,5vw,54px)}
.cta-box .lab{color:#8fb6f0}
.cta-box h2{font-family:"Archivo","Montserrat",sans-serif;font-weight:900;color:#fff;font-size:clamp(26px,4.2vw,50px);margin:12px 0 0}
.cta-box p{color:#b7c4d1;margin:16px 0 0;max-width:58ch;font-size:15px}
.prices{margin-top:30px;display:grid;grid-template-columns:repeat(3,1fr);border:2px solid #2a3a4a}
.prices .price{padding:20px;border-right:2px solid #2a3a4a}
.prices .price:last-child{border-right:0}
.prices .price .p{font-family:"Archivo","Montserrat",sans-serif;font-weight:900;font-size:23px;color:#8fb6f0}
.prices .price .t{font-size:11.5px;color:#b7c4d1;margin-top:9px;line-height:1.55}
.contacts{margin-top:28px;display:flex;gap:14px;flex-wrap:wrap;font-size:13px}
.contacts a{display:inline-flex;align-items:center;gap:9px;text-decoration:none;
  border:2px solid #2a3a4a;padding:11px 18px;color:#dbe7fb;transition:.15s}
.contacts a:hover{border-color:#8fb6f0;color:#fff}
@media(max-width:700px){.prices{grid-template-columns:1fr}
  .prices .price{border-right:0;border-bottom:2px solid #2a3a4a}
  .prices .price:last-child{border-bottom:0}}

/* teaser cards (home -> subpages) */
.teasers{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:26px}
.teaser{border:2px solid var(--ink);background:var(--fill);padding:26px;text-decoration:none;color:var(--ink);
  display:flex;flex-direction:column;transition:.16s}
.teaser:hover{background:var(--blue-dim)}
.teaser .lab{color:var(--blue)}
.teaser h3{font-weight:800;font-size:clamp(20px,2.4vw,27px);margin:12px 0 10px;line-height:1.1}
.teaser p{color:var(--ink-soft);font-size:14px;flex:1}
.teaser .go{margin-top:18px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--blue)}
@media(max-width:680px){.teasers{grid-template-columns:1fr}}

/* also-built list */
.also{border:2px solid var(--ink);margin-top:24px}
.also .ar{padding:16px 20px;border-bottom:2px solid var(--grid);font-size:13.5px;color:var(--ink-soft)}
.also .ar:last-child{border-bottom:0}
.also .ar b{font-family:"Archivo","Montserrat",sans-serif;color:var(--ink);font-weight:700}

/* ---------------- Footer ---------------- */
.site-foot{border-top:2px solid var(--ink);background:var(--fill);margin-top:0}
.site-foot .in{max-width:var(--sheet-max);margin:0 auto;padding:26px clamp(16px,4vw,44px) 40px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:18px;font-size:11.5px;color:var(--mut)}
.site-foot .in a{color:var(--blue);text-decoration:none}
.site-foot .in .disc{max-width:60ch;line-height:1.7}