/* Base: reset, layout, type, shared components. All classes prefixed ns-. */

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--ns-paper);color:var(--ns-ink);font-family:var(--ns-f-body);font-size:var(--ns-t-body);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{display:block;max-width:100%}
h1,h2,h3,h4,p,ul,ol,figure,dl,dd{margin:0}
ul[role="list"],ol[role="list"]{list-style:none;padding:0}
a{color:inherit}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--ns-redline);outline-offset:3px}
[hidden]{display:none!important}

.ns-skip{position:absolute;left:var(--ns-s4);top:-100px;z-index:100;background:var(--ns-action);color:var(--ns-on-action);padding:var(--ns-s3) var(--ns-s4);font-weight:600;text-decoration:none}
.ns-skip:focus{top:var(--ns-s4)}
.ns-sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* layout */
.ns-wrap{width:100%;max-width:calc(var(--ns-maxw) + 2 * max(16px, 4vw));margin-inline:auto;padding-inline:max(16px, 4vw)}
.ns-section{padding-block:var(--ns-section)}
.ns-sheet{background:var(--ns-sheet)}
.ns-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--ns-gutter)}
@media (min-width:768px){.ns-grid{grid-template-columns:repeat(6,minmax(0,1fr))}}
@media (min-width:1024px){.ns-grid{grid-template-columns:repeat(12,minmax(0,1fr))}}

/* type roles */
.ns-d1{font-family:var(--ns-f-display);font-weight:800;font-stretch:82%;font-size:var(--ns-t-d1);line-height:.88;letter-spacing:-.035em}
.ns-d2{font-family:var(--ns-f-display);font-weight:750;font-stretch:88%;font-size:var(--ns-t-d2);line-height:1;letter-spacing:-.025em;text-wrap:balance}
.ns-h3{font-family:var(--ns-f-display);font-weight:700;font-stretch:95%;font-size:var(--ns-t-h3);line-height:1.15;letter-spacing:-.012em;text-wrap:balance}
.ns-lead{font-size:var(--ns-t-lead);line-height:1.5;max-width:46ch}
.ns-body{max-width:62ch;color:var(--ns-ink-2)}
.ns-ann{font-family:var(--ns-f-mono);font-size:var(--ns-t-ann);font-weight:400;letter-spacing:.06em;text-transform:uppercase;color:var(--ns-ink-2);line-height:1.4}
.ns-ann b{font-weight:500;color:var(--ns-ink)}

/* plate header */
.ns-plate-h{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--ns-s4) var(--ns-s5);flex-wrap:wrap;border-top:1px solid var(--ns-ink);padding-top:var(--ns-s4);margin-bottom:var(--ns-s7)}
.ns-plate-h .ns-ann{padding-bottom:.35em}

/* buttons */
.ns-btn{display:inline-flex;align-items:center;gap:var(--ns-s3);padding:13px 20px;border-radius:2px;border:1.5px solid var(--ns-ink);background:transparent;color:var(--ns-ink);font-family:var(--ns-f-body);font-weight:600;font-size:.9375rem;line-height:1.2;text-decoration:none;cursor:pointer;transition:background-color var(--ns-ui) var(--ns-ease),color var(--ns-ui) var(--ns-ease),border-color var(--ns-ui) var(--ns-ease)}
.ns-btn svg{width:16px;height:16px;flex:none}
.ns-btn:hover,.ns-btn:focus-visible{background:var(--ns-ink);color:var(--ns-paper)}
.ns-btn--primary{background:var(--ns-action);border-color:var(--ns-action);color:var(--ns-on-action)}
.ns-btn--primary:hover,.ns-btn--primary:focus-visible{background:var(--ns-ink);border-color:var(--ns-ink);color:var(--ns-paper)}
.ns-link{display:inline-flex;align-items:center;gap:var(--ns-s2);font-weight:600;text-decoration:none;border-bottom:1.5px solid currentColor;padding-bottom:2px}
.ns-link:hover{color:var(--ns-redline)}
.ns-link svg{width:14px;height:14px}

/* tags */
.ns-tag{display:inline-block;font-family:var(--ns-f-mono);font-size:.6875rem;letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--ns-ink);color:var(--ns-ink);padding:3px 7px;line-height:1.3;white-space:nowrap}
.ns-tag--survey{border-color:var(--ns-survey);color:var(--ns-ink-2)}
.ns-tag--solve{border-color:var(--ns-redline);color:var(--ns-redline)}
.ns-tag--build{border-color:var(--ns-verdigris);color:var(--ns-verdigris)}
.ns-tag--confirm{border-style:dashed;border-color:var(--ns-ochre);color:var(--ns-ink-2)}

/* header */
.ns-header{position:sticky;top:0;z-index:50;background:var(--ns-deep);color:#ECEDE6;border-bottom:1px solid #24364A}
.ns-header .ns-wrap{display:flex;align-items:center;justify-content:space-between;gap:var(--ns-s5);min-height:64px}
.ns-brand{display:inline-flex;align-items:baseline;gap:10px;font-family:var(--ns-f-display);font-weight:800;font-stretch:88%;font-size:1.25rem;letter-spacing:-.02em;text-decoration:none;color:#ECEDE6}
.ns-brand svg{width:24px;height:24px;flex:none}
.ns-nav{display:none}
.ns-nav ul{display:flex;gap:var(--ns-s6);list-style:none;margin:0;padding:0}
.ns-nav a{text-decoration:none;font-size:.9375rem;font-weight:500;color:#C9D0D6;padding-block:6px;border-bottom:1.5px solid transparent}
.ns-nav a:hover{color:#ECEDE6;border-bottom-color:#E8673F}
.ns-header .ns-btn--primary{padding:10px 16px;font-size:.875rem}
.ns-header .ns-btn--primary:hover,.ns-header .ns-btn--primary:focus-visible{background:#ECEDE6;border-color:#ECEDE6;color:var(--ns-deep)}
.ns-header .ns-cta{display:none}
.ns-menu-btn{display:inline-flex;align-items:center;gap:8px;background:none;border:1.5px solid #3A4B5C;border-radius:2px;color:#ECEDE6;padding:8px 12px;font-family:var(--ns-f-mono);font-size:.75rem;letter-spacing:.06em;text-transform:uppercase;cursor:pointer}
.ns-menu-btn svg{width:16px;height:16px}
@media (min-width:1024px){
  .ns-nav,.ns-header .ns-cta{display:flex}
  .ns-menu-btn{display:none}
}
.ns-sheetmenu{position:fixed;inset:0;z-index:60;background:var(--ns-deep);color:#ECEDE6;display:flex;flex-direction:column;padding:0 max(16px,4vw) var(--ns-s7)}
.ns-sheetmenu .ns-sheetmenu-top{display:flex;align-items:center;justify-content:space-between;min-height:64px;border-bottom:1px solid #24364A}
.ns-sheetmenu nav ul{list-style:none;padding:0;margin:var(--ns-s6) 0;display:grid}
.ns-sheetmenu nav a{display:flex;justify-content:space-between;align-items:baseline;padding:var(--ns-s4) 0;border-bottom:1px solid #24364A;text-decoration:none;font-family:var(--ns-f-display);font-weight:750;font-stretch:88%;font-size:2rem;letter-spacing:-.02em}
.ns-sheetmenu nav a span{font-family:var(--ns-f-mono);font-size:.75rem;font-weight:400;letter-spacing:.06em;color:#AEB8C0}
.ns-sheetmenu .ns-btn--primary{align-self:flex-start}

/* footer as drawing title block */
.ns-footer{padding-block:var(--ns-s7) var(--ns-s6)}
.ns-titleblock{display:grid;grid-template-columns:1fr;border:1px solid var(--ns-rule)}
.ns-titleblock > div{padding:var(--ns-s4) var(--ns-s5);border-bottom:1px solid var(--ns-rule);min-width:0}
.ns-titleblock > div:last-child{border-bottom:0}
@media (min-width:768px){
  .ns-titleblock{grid-template-columns:minmax(0,1.3fr) minmax(max-content,1fr) minmax(0,1fr)}
  .ns-titleblock > div{border-bottom:0;border-right:1px solid var(--ns-rule)}
  .ns-titleblock > div:last-child{border-right:0}
}
.ns-titleblock .ns-ann{display:block;margin-bottom:var(--ns-s2)}
.ns-titleblock ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.ns-titleblock a{text-decoration:none;color:var(--ns-ink)}
.ns-titleblock a:hover{color:var(--ns-redline)}
.ns-ph{font-family:var(--ns-f-mono);font-size:.8125rem;color:var(--ns-ochre);border-bottom:1px dashed var(--ns-ochre)}
.ns-footer-base{display:flex;justify-content:space-between;gap:var(--ns-s4);flex-wrap:wrap;margin-top:var(--ns-s4)}
.ns-header .ns-brand{position:relative;top:-1.3px}   /* the mark and wordmark share the navigation links' baseline */
.ns-brand svg{transform:translateY(.18em)}   /* the mark is centred on the height of the capitals in "Nodes & Systems" */

/* header actions: theme switch, call to action, menu */
.ns-head-act{display:flex;align-items:center;gap:var(--ns-s3)}
.ns-theme-btn{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;padding:0;background:none;border:1.5px solid #3A4B5C;border-radius:2px;color:#ECEDE6;cursor:pointer;transition:border-color var(--ns-ui) var(--ns-ease),color var(--ns-ui) var(--ns-ease)}
.ns-theme-btn:hover,.ns-theme-btn:focus-visible{border-color:#ECEDE6;color:#fff}
.ns-theme-btn svg{width:18px;height:18px}
.ns-th-sun{display:none}
:root[data-theme="dark"] .ns-th-sun{display:block}
:root[data-theme="dark"] .ns-th-moon{display:none}