/* Torspan — "Shop Drawing" design system
   Direction A from build/04-design-benchmarks.md. Warm paper, hard ink,
   one orange that only ever means "act here", numbers in mono. */

/* ---------- fonts ---------- */
@font-face{font-family:Archivo;src:url(/fonts/archivo.woff2)format("woff2");font-weight:100 900;font-stretch:62% 125%;font-display:swap}
@font-face{font-family:InterVar;src:url(/fonts/inter.woff2)format("woff2");font-weight:100 900;font-display:swap}
@font-face{font-family:MonoVar;src:url(/fonts/mono.woff2)format("woff2");font-weight:100 800;font-display:swap}

/* ---------- tokens ---------- */
:root{
  --paper:#FBFAF7; --paper-2:#F2F0EA; --paper-3:#E7E4DC;
  --rule:#DFDBD2; --rule-hard:#B9B4A8;
  --ink:#14130F; --ink-2:#45423B; --ink-3:#6B675E;
  --signal:#B4430F; --signal-ink:#8A330B; --blueprint:#1B3A5C;
  --chrome:#16150F; --chrome-2:#221F18; --on-chrome:#FBFAF7; --on-chrome-2:#CFC9BC;
  --rule-a2:#14130F14; --rule-a3:#14130F26; --rule-on-dark:#ffffff26;

  --w-regular:400; --w-medium:520; --w-semibold:600; --w-bold:700;

  --display:clamp(2.5rem,1rem + 6.4vi,4.5rem);
  --display-tracking:clamp(-1.6px,-0.6px - 0.12vw,-0.5px);
  --t-1:clamp(2rem,1.3rem + 2.6vi,3.5rem);
  --t-2:clamp(1.75rem,1.2rem + 1.9vi,2.75rem);
  --t-3:clamp(1.5rem,1.15rem + 1.1vi,2rem);
  --t-4:1.5rem; --t-5:1.25rem; --t-6:1.0625rem;
  --body:1.0625rem; --body-lg:1.1875rem; --label:.8125rem;

  --s-1:4px; --s-2:8px; --s-3:12px; --s-4:16px; --s-5:24px; --s-6:32px;
  --s-7:48px; --s-8:64px; --s-9:96px; --s-10:128px; --s-11:160px;

  --page:1120px; --gutter:20px;
  --dur-instant:100ms; --dur-quick:180ms; --dur-calm:320ms;
  --ease:cubic-bezier(.2,0,0,1);
}
@media(min-width:744px){:root{--gutter:32px}}
@media(min-width:1100px){:root{--gutter:48px}}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:InterVar,-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;
  font-size:var(--body);line-height:1.55;font-weight:var(--w-regular);
  font-feature-settings:"cv01","ss03";font-variation-settings:"opsz" auto;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:Archivo,InterVar,system-ui,sans-serif;font-variation-settings:"wdth" 112;margin:0;text-wrap:balance}
h1{font-size:var(--display);line-height:1.02;letter-spacing:var(--display-tracking);font-weight:var(--w-bold)}
h2{font-size:var(--t-2);line-height:1.06;letter-spacing:-.022em;font-weight:var(--w-bold)}
h3{font-size:var(--t-4);line-height:1.25;letter-spacing:-.012em;font-weight:var(--w-semibold)}
h4{font-size:var(--t-5);line-height:1.3;letter-spacing:-.012em;font-weight:var(--w-semibold)}
p{margin:0 0 var(--s-5);max-width:66ch}
a{color:var(--signal-ink);text-decoration:none;border-bottom:1px solid var(--rule-hard);transition:border-color var(--dur-instant) var(--ease),color var(--dur-instant) var(--ease)}
a:hover{border-bottom-color:var(--signal)}
strong{font-weight:var(--w-semibold)}
hr{border:0;border-top:1px solid var(--rule);margin:var(--s-8) 0}
img{max-width:100%;height:auto;display:block}
::selection{background:#B4430F26}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:2px}

.wrap{width:100%;max-width:var(--page);margin-inline:auto;padding-inline:var(--gutter)}
.narrow{max-width:42rem}
.mono{font-family:MonoVar,ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums}
.label{font-family:MonoVar,ui-monospace,monospace;font-size:var(--label);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);font-weight:var(--w-medium)}
.lead{font-size:var(--body-lg);color:var(--ink-2);max-width:60ch}
.muted{color:var(--ink-2)}
.center{text-align:center;margin-inline:auto}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:60;background:var(--chrome);color:var(--on-chrome)}
.site-head .wrap{display:flex;align-items:center;gap:var(--s-5);min-height:60px}
.brand{display:flex;align-items:center;min-height:44px;gap:10px;color:var(--on-chrome);border:0;font-family:Archivo,sans-serif;font-weight:var(--w-bold);font-size:1.15rem;letter-spacing:-.01em;font-variation-settings:"wdth" 112}
.brand svg,.brand img{display:block;flex:none}
.brand img{width:26px;height:26px;object-fit:contain}
.foot-brand .brand img{width:24px;height:24px}
.nav{display:none;margin-left:auto;align-items:center;gap:var(--s-2)}
@media(min-width:1000px){.nav{display:flex}}
.nav-item{position:relative}
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:9px 12px;color:var(--on-chrome-2);border:0;font-size:.95rem;font-weight:var(--w-medium);border-radius:3px;background:none;cursor:pointer;font-family:inherit}
.nav-link:hover,.nav-item:hover .nav-link{color:var(--on-chrome);background:var(--chrome-2)}
.nav-link[aria-current]{color:#E8A33D}  /* --signal is only 3.27:1 on --chrome */
.nav-link .chev{width:9px;height:9px;opacity:.65}
.menu{position:absolute;top:calc(100% + 6px);left:0;min-width:250px;background:var(--paper);border:1px solid var(--rule-hard);border-radius:4px;padding:var(--s-2);box-shadow:0 14px 40px #14130f1f;opacity:0;visibility:hidden;transform:translateY(-4px);transition:all var(--dur-quick) var(--ease)}
.nav-item:hover .menu,.nav-item:focus-within .menu{opacity:1;visibility:visible;transform:none}
.menu a{display:block;padding:9px 12px;color:var(--ink);border:0;border-radius:3px;font-size:.95rem}
.menu a:hover{background:var(--paper-2);color:var(--signal-ink)}
.menu a span{display:block;color:var(--ink-2);font-size:.8125rem;line-height:1.35;margin-top:2px}
.head-cta{margin-left:auto;display:flex;align-items:center;gap:var(--s-3)}
@media(min-width:1000px){.head-cta{margin-left:var(--s-4)}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 18px;min-height:44px;border-radius:3px;font-weight:var(--w-semibold);font-size:.95rem;border:1px solid transparent;cursor:pointer;transition:all var(--dur-instant) var(--ease);font-family:inherit;line-height:1.2}
.btn-primary{background:var(--signal);color:#fff;border-color:var(--signal)}
.btn-primary:hover{background:var(--signal-ink);border-color:var(--signal-ink)}
.btn-ghost{color:var(--ink);border-color:var(--rule-hard);background:none}
.btn-ghost:hover{border-color:var(--ink);background:var(--paper-2)}
.btn-on-dark{color:var(--on-chrome);border-color:#ffffff33;background:none}
.btn-on-dark:hover{border-color:var(--on-chrome);background:#ffffff14}
.burger{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;background:none;border:1px solid #ffffff2e;border-radius:3px;padding:9px 11px;min-width:44px;min-height:44px;color:var(--on-chrome);cursor:pointer}
@media(min-width:1000px){.burger{display:none}}
.burger svg{display:block}
.mobile-nav{display:none;background:var(--chrome);border-top:1px solid #ffffff1a;padding:var(--s-4) 0 var(--s-6);
  max-height:calc(100vh - 60px);max-height:calc(100dvh - 60px);overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
.mobile-nav.open{display:block}
@media(min-width:1000px){.mobile-nav.open{display:none}}
.mobile-nav .group{padding:var(--s-3) 0;border-bottom:1px solid #ffffff14}
.mobile-nav .label{color:#8c8779;margin-bottom:var(--s-2);display:block}
.mobile-nav a{display:block;padding:11px 0;color:var(--on-chrome);border:0;font-size:1.05rem}
.mobile-nav a:hover{color:var(--signal)}

/* ---------- sections ---------- */
.section{padding-block:var(--s-9)}
@media(min-width:1000px){.section{padding-block:var(--s-11)}}
.section-tight{padding-block:var(--s-8)}
.section-paper2{background:var(--paper-2)}
.section-chrome{background:var(--chrome);color:var(--on-chrome)}
.section-chrome h2,.section-chrome h3{color:var(--on-chrome)}
.section-chrome p{color:var(--on-chrome-2)}
.section-chrome .label{color:#8c8779}
.section-chrome a{color:#E8A33D;border-bottom-color:#ffffff2e}
.rule-top{border-top:1px solid var(--rule)}
.section-head{max-width:52rem;margin-bottom:var(--s-7)}
.section-head .label{display:block;margin-bottom:var(--s-3)}
.section-head p{margin-top:var(--s-4);color:var(--ink-2);font-size:var(--body-lg)}

/* ---------- hero ---------- */
.hero{padding-block:var(--s-8) var(--s-9);border-bottom:1px solid var(--rule)}
@media(min-width:1000px){.hero{padding-block:var(--s-9) var(--s-10)}}
.hero .kicker{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--rule-hard);border-radius:999px;padding:6px 13px;margin-bottom:var(--s-6)}
.hero h1{max-width:17ch}
.hero .lead{margin-top:var(--s-5);font-size:clamp(1.125rem,1rem + .6vi,1.375rem);line-height:1.45}
.hero-actions{display:flex;flex-wrap:wrap;gap:var(--s-3);margin-top:var(--s-7)}
.hero-note{margin-top:var(--s-5);color:var(--ink-3);font-size:.9375rem}

/* ---------- grids & cards ---------- */
.grid{display:grid;gap:var(--s-5)}
/* A grid item's automatic minimum is min-content, so one wide child (a table
   carrying min-width:520px) blows the whole track past the viewport and the
   PAGE scrolls sideways instead of the table scrolling inside its wrap. */
.grid>*{min-width:0}
.g2{grid-template-columns:1fr}
.g3{grid-template-columns:1fr}
@media(min-width:744px){.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1000px){.g3{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--paper);border:1px solid var(--rule);border-radius:4px;padding:var(--s-5)}
.card h3{margin-bottom:var(--s-3)}
.card p:last-child{margin-bottom:0}
.card .num{font-family:MonoVar,monospace;font-size:var(--label);color:var(--signal-ink);letter-spacing:.06em;display:block;margin-bottom:var(--s-3)}
.card-flat{background:none;border:0;border-top:1px solid var(--rule-hard);border-radius:0;padding:var(--s-5) 0 0}

/* ---------- doctrine / quote ---------- */
.doctrine{border-left:2px solid var(--blueprint);padding:var(--s-2) 0 var(--s-2) var(--s-5);max-width:38rem}
.doctrine p{font-family:Archivo,sans-serif;font-variation-settings:"wdth" 112;font-size:var(--t-4);line-height:1.28;letter-spacing:-.012em;color:var(--blueprint);font-weight:var(--w-medium);margin:0}
.wall-line{font-family:Archivo,sans-serif;font-variation-settings:"wdth" 112;font-size:var(--t-3);line-height:1.15;letter-spacing:-.022em;font-weight:var(--w-bold);max-width:22ch;margin:0}

/* ---------- artifact: DOM-built product UI ---------- */
.artifact{background:var(--paper-2);border:1px solid var(--rule-hard);border-radius:4px;overflow:hidden}
.artifact-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:10px 14px;background:var(--paper-3);border-bottom:1px solid var(--rule-hard)}
.artifact-bar .dot{width:8px;height:8px;border-radius:50%;background:var(--rule-hard)}
.artifact-bar .t{font-family:MonoVar,monospace;font-size:.75rem;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-2);
  min-width:0;overflow-wrap:anywhere}
.artifact-body{padding:var(--s-5)}
.msg{max-width:80%;background:var(--paper);border:1px solid var(--rule);border-radius:4px;padding:12px 14px;margin-bottom:var(--s-3);font-size:1rem}
.msg.out{margin-left:auto;background:var(--chrome);color:var(--on-chrome);border-color:var(--chrome)}
.msg .who{display:block;font-family:MonoVar,monospace;font-size:.6875rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);margin-bottom:5px}
.msg.out .who{color:#9a9483}
.record{background:var(--paper);border:1px solid var(--rule-hard);border-radius:4px;padding:var(--s-4);margin-top:var(--s-4)}
.record-row{display:flex;justify-content:space-between;gap:var(--s-4);padding:9px 0;border-bottom:1px solid var(--rule);font-size:.9375rem}
.record-row:last-child{border-bottom:0}
.record-row .k{font-family:MonoVar,monospace;font-size:.75rem;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-3);white-space:nowrap}
.record-row .v{text-align:right;font-weight:var(--w-medium)}
.record-row .v.blank{color:var(--signal-ink);font-family:MonoVar,monospace;font-size:.875rem}
.cite{font-family:MonoVar,monospace;font-size:.8125rem;color:var(--ink-2);border-top:1px dashed var(--rule-hard);margin-top:var(--s-4);padding-top:var(--s-3)}

/* ---------- tables ---------- */
.table-wrap{overflow-x:auto;max-width:100%;border:1px solid var(--rule-hard);border-radius:4px;
  overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;min-width:520px;font-size:.9375rem}
th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--rule);vertical-align:top}
th{font-family:MonoVar,monospace;font-size:.75rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);background:var(--paper-2);font-weight:var(--w-medium)}
tbody tr:last-child td{border-bottom:0}
td.num{font-family:MonoVar,monospace;font-variant-numeric:tabular-nums}

/* ---------- lists ---------- */
.list{list-style:none;padding:0;margin:0 0 var(--s-5);max-width:60ch}
.list li{padding:11px 0 11px 26px;border-bottom:1px solid var(--rule);position:relative}
.list li:last-child{border-bottom:0}
.list li::before{content:"";position:absolute;left:4px;top:19px;width:7px;height:1px;background:var(--signal)}
.list-check li::before{content:"✓";font-family:MonoVar,monospace;background:none;color:var(--signal-ink);width:auto;height:auto;top:11px;left:0;font-size:.875rem}
.list-no li::before{content:"×";font-family:MonoVar,monospace;background:none;color:var(--ink-3);width:auto;height:auto;top:11px;left:0;font-size:1rem}

/* ---------- on-page nav ----------
   The <ul> carries an inline font-size:.8125rem on every page. Styling the
   anchor (which has no inline style) lifts both the type and the tap target
   without needing !important or 16 hand edits. */
nav[aria-label="On this page"] a{display:inline-block;padding-block:7px;font-size:.9375rem}

/* ---------- faq ---------- */
.qa{border-top:1px solid var(--rule-hard)}
.qa details{border-bottom:1px solid var(--rule);padding:var(--s-4) 0}
.qa summary{cursor:pointer;font-weight:var(--w-semibold);font-size:var(--t-5);list-style:none;display:flex;justify-content:space-between;gap:var(--s-4);align-items:flex-start;min-height:44px}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";font-family:MonoVar,monospace;color:var(--signal-ink);font-size:1.25rem;line-height:1;flex:none}
.qa details[open] summary::after{content:"–"}
.qa details p{margin-top:var(--s-4);margin-bottom:0;color:var(--ink-2)}

/* ---------- cta band ---------- */
.cta-band{background:var(--chrome);color:var(--on-chrome);padding-block:var(--s-9)}
.cta-band h2{color:var(--on-chrome);max-width:20ch}
.cta-band p{color:var(--on-chrome-2);max-width:52ch}
.cta-band .btn-primary:hover{background:#C94D12;border-color:#C94D12}

/* ---------- footer ---------- */
.site-foot{background:var(--chrome);color:var(--on-chrome-2);padding-block:var(--s-8) var(--s-6);border-top:1px solid #ffffff1a}
.foot-grid{display:grid;gap:var(--s-6);grid-template-columns:1fr}
@media(min-width:744px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.site-foot h4{font-family:MonoVar,monospace;font-size:var(--label);letter-spacing:.06em;text-transform:uppercase;color:#8c8779;font-weight:var(--w-medium);margin-bottom:var(--s-3)}
.site-foot a{display:flex;align-items:center;min-height:44px;color:var(--on-chrome-2);border:0;padding:4px 0;font-size:.9375rem}
.site-foot a:hover{color:var(--signal)}
.foot-brand p{color:#8c8779;font-size:.9375rem;max-width:34ch;margin-top:var(--s-4)}
.foot-legal{display:flex;flex-wrap:wrap;gap:var(--s-3) var(--s-6);justify-content:space-between;align-items:center;margin-top:var(--s-7);padding-top:var(--s-5);border-top:1px solid #ffffff14;color:#85806f;font-size:.875rem}  /* #7d7869 was 4.15:1 */
.foot-legal a{display:inline;min-height:0;color:#85806f}
.foot-legal .addr{font-family:MonoVar,monospace;font-size:.8125rem;letter-spacing:.02em}

/* ---------- motion ---------- */
/* content is visible by default; only a JS-capable page arms the reveal */
.rise{transition:opacity var(--dur-calm) var(--ease),transform var(--dur-calm) var(--ease)}
.js .rise{opacity:0;transform:translateY(8px)}
.rise.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .rise{opacity:1;transform:none}
}