:root{
    --vellum:#E7EAE6;      /* field-book paper */
    --sheet:#F3F4F1;       /* log sheet */
    --ink:#1E2629;         /* drafting ink */
    --ink-soft:#56605F;
    --rule:#B9C0BB;
    --flag:#D9480F;        /* survey flagging orange — used sparingly */
    /* strata, from Munsell soil colors */
    --s-loess:#A88A5E;     /* 10YR 6/4 */
    --s-clay:#7E5A3C;      /* 7.5YR 4/4 */
    --s-silt:#9A9282;      /* 2.5Y 6/2 */
    --s-sand:#C2A878;      /* 10YR 7/4 */
    --s-gravel:#6F6A5E;    /* 5Y 4/1 */
    --s-red:#8C4A35;       /* 2.5YR 4/6 */
    --display:"Barlow Condensed", "Arial Narrow", sans-serif;
    --body:"Public Sans", system-ui, sans-serif;
    --mono:"IBM Plex Mono", ui-monospace, monospace;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{margin:0;background:var(--vellum);color:var(--ink);font:16px/1.6 var(--body);-webkit-font-smoothing:antialiased}
  a{color:inherit}
  a:focus-visible,button:focus-visible{outline:3px solid var(--flag);outline-offset:3px}
  .wrap{max-width:1080px;margin:0 auto;padding:0 24px}

  /* ---------- masthead ---------- */
  .masthead{background:#fff;border-bottom:1px solid var(--rule)}
  .masthead .top{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:18px;padding-bottom:18px}
  .masthead .brand{display:block;line-height:0}
  .masthead .brand img{height:64px;width:auto}
  .masthead .tag{font:500 13px/1.4 var(--body);color:var(--ink-soft);text-align:right}
  .masthead .tag a{display:inline-block;margin-top:6px;font-weight:600;color:var(--ink);text-decoration:none;border:1.5px solid var(--ink);border-radius:4px;padding:7px 14px;transition:background .15s,color .15s}
  .masthead .tag a:hover{background:var(--ink);color:#fff}
  .navbar{background:var(--ink)}
  .subnav{display:flex;gap:4px;width:100%}
  .subnav a{font:500 14.5px/1 var(--body);letter-spacing:.01em;text-decoration:none;color:rgba(255,255,255,.78);padding:16px 16px 13px;border-bottom:3px solid transparent;transition:color .15s,border-color .15s}
  .subnav a:first-child{margin-left:-16px}
  .subnav a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.35)}
  .subnav a[aria-current="page"]{color:#fff;border-bottom-color:var(--flag)}
  .subnav a:focus-visible{outline:2px solid #fff;outline-offset:-4px}
  /* ---------- home ---------- */
  .home-hero{background:#fff;border-bottom:1px solid var(--rule)}
  .home-hero .wrap{padding-top:72px;padding-bottom:72px;display:grid;grid-template-columns:1.35fr 1fr;gap:64px;align-items:center}
  .eyebrow{font:600 12px/1 var(--body);letter-spacing:.12em;text-transform:uppercase;color:var(--flag);margin:0 0 18px}
  .home-hero h1{font:600 clamp(40px,5vw,60px)/1.02 var(--display);letter-spacing:-.005em;margin:0;color:var(--ink)}
  .home-hero p.lead{font-size:19px;line-height:1.6;color:var(--ink-soft);margin:22px 0 0;max-width:52ch}
  .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
  .button{display:inline-block;font:600 15px/1 var(--body);text-decoration:none;padding:14px 22px;border-radius:4px;border:1.5px solid var(--ink);transition:background .15s,color .15s,border-color .15s}
  .button.primary{background:var(--ink);color:#fff}
  .button.primary:hover{background:var(--flag);border-color:var(--flag)}
  .button.secondary{background:transparent;color:var(--ink)}
  .button.secondary:hover{background:var(--ink);color:#fff}
  .focus{border-left:3px solid var(--flag);padding:4px 0 4px 28px}
  .focus h2{font:600 12px/1 var(--body);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 16px}
  .focus ul{list-style:none;margin:0;padding:0}
  .focus li{font:600 21px/1.2 var(--display);padding:11px 0;border-bottom:1px solid var(--rule)}
  .focus li:last-child{border-bottom:0}
  .section{padding-top:72px;padding-bottom:24px}
  .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:32px}
  .section-head h2{font:600 36px/1 var(--display);margin:0}
  .section-head p{margin:0;color:var(--ink-soft);max-width:44ch;text-align:right}
  .cards{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
  .card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--rule);border-radius:6px;padding:28px 30px 24px;text-decoration:none;color:var(--ink);box-shadow:0 1px 2px rgba(30,38,41,.06);transition:box-shadow .2s,border-color .2s,transform .2s}
  .card:hover{border-color:var(--ink);box-shadow:0 10px 28px rgba(30,38,41,.12);transform:translateY(-2px)}
  .card .icon{width:44px;height:44px;border-radius:6px;background:var(--vellum);display:grid;place-items:center;margin-bottom:20px}
  .card .icon svg{width:24px;height:24px}
  .card .cat{font:600 11.5px/1 var(--body);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft)}
  .card h3{font:600 27px/1.1 var(--display);margin:8px 0 12px}
  .card p{margin:0 0 22px;color:var(--ink-soft);font-size:15.5px;line-height:1.6}
  .card .more{margin-top:auto;font:600 15px/1 var(--body);color:var(--flag)}
  .card:hover .more{text-decoration:underline;text-underline-offset:3px}
  .about-strip{margin:56px 0 96px;background:#fff;border:1px solid var(--rule);border-radius:6px;display:grid;grid-template-columns:1fr auto;align-items:center;gap:24px;padding:30px 32px}
  .about-strip h2{font:600 28px/1.1 var(--display);margin:0 0 6px}
  .about-strip p{margin:0;color:var(--ink-soft)}
  /* ---------- site footer ---------- */
  .site-footer{background:var(--ink);color:rgba(255,255,255,.72);font:14px/1.6 var(--body);border-top:0;text-transform:none;letter-spacing:0}
  .site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;padding-top:56px;padding-bottom:40px}
  .site-footer img.logo{height:46px;width:auto;display:block;margin-bottom:14px}
  .site-footer h3{font:600 12px/1 var(--body);letter-spacing:.12em;text-transform:uppercase;color:#fff;margin:6px 0 16px}
  .site-footer ul{list-style:none;margin:0;padding:0}
  .site-footer li{margin:0 0 8px}
  .site-footer a{color:rgba(255,255,255,.82);text-decoration:none}
  .site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
  .site-footer .legal{border-top:1px solid rgba(255,255,255,.14);padding-top:18px;padding-bottom:26px;font-size:13px;color:rgba(255,255,255,.55)}
  /* ---------- hero ---------- */
  .hero{padding-top:72px;padding-bottom:56px}
  .hero h1{font:700 clamp(64px,13vw,168px)/.82 var(--display);letter-spacing:-.01em;text-transform:uppercase;margin:0}
  .hero h1 em{font-style:normal;color:var(--flag)}
  .hero .lede{display:grid;grid-template-columns:1.3fr 1fr;gap:48px;margin-top:36px;align-items:end}
  .hero p{font-size:clamp(19px,2.2vw,23px);line-height:1.45;margin:0;max-width:30ch}
  .hero dl{margin:0;font:13px/1.5 var(--mono);display:grid;grid-template-columns:auto 1fr;gap:6px 16px;border-top:1.5px solid var(--ink);padding-top:14px}
  .hero dt{color:var(--ink-soft);text-transform:uppercase;letter-spacing:.04em}
  .hero dd{margin:0}

  /* ---------- section heads ---------- */
  .sh{display:flex;align-items:baseline;justify-content:space-between;border-top:1.5px solid var(--ink);padding-top:12px;margin-bottom:28px}
  .sh h2{font:600 32px/1 var(--display);text-transform:uppercase;letter-spacing:.01em;margin:0}
  .sh small{font:12px var(--mono);color:var(--ink-soft);text-transform:uppercase;letter-spacing:.04em}

  /* ---------- the boring log ---------- */
  .log{background:var(--sheet);border:1.5px solid var(--ink);margin-bottom:96px}
  .log-head,.layer{display:grid;grid-template-columns:72px 96px 1fr}
  .log-head{border-bottom:1.5px solid var(--ink);font:500 11px/1.2 var(--mono);text-transform:uppercase;letter-spacing:.05em;color:var(--ink-soft)}
  .log-head div{padding:10px 12px;border-right:1px solid var(--rule)}
  .log-head div:last-child{border-right:0}
  .layer{min-height:calc(var(--yrs) * 24px);border-bottom:1px solid var(--ink)}
  .layer:last-of-type{border-bottom:1.5px solid var(--ink)}
  .depth{border-right:1px solid var(--rule);font:500 13px/1 var(--mono);padding:10px 12px;position:relative}
  .depth::after{content:"";position:absolute;right:-1px;top:0;width:10px;border-top:1.5px solid var(--ink)}
  .col{border-right:1.5px solid var(--ink);position:relative;overflow:hidden;background:var(--c)}
  .col::before{content:"";position:absolute;inset:0;background-image:var(--pat);opacity:.55;transition:opacity .25s}
  .desc{padding:14px 20px 18px;display:grid;grid-template-columns:1fr auto;gap:2px 24px;align-content:start;transition:background .25s}
  .desc h3{font:600 25px/1.05 var(--display);text-transform:uppercase;margin:0;letter-spacing:.01em}
  .desc .where{font:12px/1.4 var(--mono);color:var(--ink-soft);text-align:right;white-space:nowrap;padding-top:4px}
  .desc .role{font-weight:600;margin:2px 0 0;grid-column:1/-1}
  .desc .note{margin:4px 0 0;grid-column:1/-1;color:var(--ink-soft);max-width:62ch}
  .desc .uscs{grid-column:1/-1;font:italic 12.5px/1.4 var(--mono);color:var(--ink-soft);margin-top:8px}
  .layer:hover .desc{background:#fff}
  .layer:hover .col::before{opacity:.9}
  .layer.thin .note{display:none}
  .layer.major .desc h3{font-size:34px}

  /* hatch patterns */
  .p-sand{--pat:radial-gradient(circle,#1E2629 1px,transparent 1.4px);background-size:auto}
  .p-sand::before{background-size:9px 9px}
  .p-clay::before{background-image:repeating-linear-gradient(0deg,transparent 0 7px,#1E2629 7px 8px)}
  .p-silt::before{background-image:repeating-linear-gradient(0deg,transparent 0 9px,#1E2629 9px 10px),radial-gradient(circle,#1E2629 .9px,transparent 1.2px);background-size:auto,8px 10px}
  .p-gravel::before{background-image:radial-gradient(circle,transparent 3px,#1E2629 3.2px,#1E2629 4px,transparent 4.3px);background-size:16px 14px}
  .p-rock::before{background-image:repeating-linear-gradient(45deg,transparent 0 9px,#1E2629 9px 10px),repeating-linear-gradient(-45deg,transparent 0 9px,#1E2629 9px 10px)}
  .p-dash::before{background-image:repeating-linear-gradient(90deg,#1E2629 0 8px,transparent 8px 14px),repeating-linear-gradient(0deg,transparent 0 9px,#000 9px 10px);-webkit-mask:repeating-linear-gradient(0deg,transparent 0 8px,#000 8px 10px);mask:repeating-linear-gradient(0deg,transparent 0 8px,#000 8px 10px)}
  .p-sand::before{background-image:radial-gradient(circle,#1E2629 1px,transparent 1.4px)}

  .eob{display:grid;grid-template-columns:72px 96px 1fr;font:500 12px/1.4 var(--mono);text-transform:uppercase;letter-spacing:.04em}
  .eob div{padding:14px 12px}
  .eob div:last-child{padding-left:20px}
  .eob strong{color:var(--flag);font-weight:500}

  /* ---------- library ---------- */
  .lib{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-bottom:96px}
  .lib a{display:flex;flex-direction:column;text-decoration:none;background:var(--sheet);border:1.5px solid var(--ink);padding:22px 24px 20px;transition:transform .2s,box-shadow .2s}
  .lib a:hover{transform:translate(-3px,-3px);box-shadow:6px 6px 0 var(--ink)}
  .lib .kind{font:500 11px/1 var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft);display:flex;align-items:center;gap:8px}
  .lib .kind svg{width:16px;height:16px;flex:none}
  .lib h3{font:600 28px/1.02 var(--display);text-transform:uppercase;margin:14px 0 10px}
  .lib p{margin:0 0 18px;color:var(--ink-soft);font-size:15px}
  .lib .go{margin-top:auto;font:600 17px/1 var(--display);text-transform:uppercase;letter-spacing:.04em;border-top:1px solid var(--rule);padding-top:14px}
  .lib a:hover .go{color:var(--flag)}

  /* ---------- work ---------- */
  .work{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-left:1.5px solid var(--ink);margin-bottom:96px}
  .work article{padding:24px 28px 28px;border-right:1.5px solid var(--ink);border-bottom:1.5px solid var(--ink)}
  .work article:nth-child(-n+2){border-top:1.5px solid var(--ink)}
  .work h3{font:600 26px/1.05 var(--display);text-transform:uppercase;margin:0 0 10px}
  .work p{margin:0;color:var(--ink-soft)}

  /* ---------- creds + contact ---------- */
  .base{display:grid;grid-template-columns:1fr 1fr;gap:56px;margin-bottom:80px}
  .base ul{list-style:none;margin:0;padding:0}
  .base li{padding:12px 0;border-bottom:1px solid var(--rule);display:flex;justify-content:space-between;gap:16px}
  .base li span:last-child{font:13px var(--mono);color:var(--ink-soft);white-space:nowrap}
  .contact p{font-size:20px;line-height:1.45;margin:0 0 24px;max-width:28ch}
  .btn{display:inline-block;font:600 20px/1 var(--display);text-transform:uppercase;letter-spacing:.03em;text-decoration:none;background:var(--ink);color:var(--sheet);padding:16px 22px;border:1.5px solid var(--ink);transition:background .2s,color .2s}
  .btn:hover{background:var(--flag);border-color:var(--flag)}
  .btn.ghost{background:transparent;color:var(--ink);margin-left:8px}
  .btn.ghost:hover{color:var(--sheet)}

  footer{border-top:1.5px solid var(--ink);font:12px/1 var(--mono);text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft)}
  footer .wrap{display:flex;justify-content:space-between;padding-top:18px;padding-bottom:28px}

  /* load: strata settle in from the top */
  @media (prefers-reduced-motion:no-preference){
    .layer{animation:settle .6s cubic-bezier(.2,.7,.2,1) both;animation-delay:calc(var(--i) * 70ms + 150ms)}
    @keyframes settle{from{opacity:0;transform:translateY(-10px)}}
  }

  @media (max-width:760px){
    .wrap{padding:0 16px}
    .masthead .top{padding-top:14px;padding-bottom:14px}
    .masthead .brand img{height:46px}
    .masthead .tag span{display:none}
    .subnav{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
    .subnav a{padding:14px 12px 11px;white-space:nowrap;font-size:14px}
    .subnav a:first-child{margin-left:-12px}
    .home-hero .wrap{grid-template-columns:1fr;gap:40px;padding-top:44px;padding-bottom:48px}
    .section{padding-top:48px}
    .section-head{flex-direction:column;align-items:flex-start}
    .section-head p{text-align:left}
    .cards{grid-template-columns:1fr;gap:16px}
    .card{padding:22px 22px 20px}
    .about-strip{grid-template-columns:1fr;padding:24px 22px;margin:40px 0 64px}
    .site-footer .cols{grid-template-columns:1fr;gap:32px;padding-top:40px}
    .hero{padding-top:44px;padding-bottom:40px}
    .hero .lede{grid-template-columns:1fr;gap:28px}
    .log-head,.layer,.eob{grid-template-columns:46px 28px 1fr}
    .log-head div:nth-child(2) {font-size:0}
    .depth{padding:10px 6px;font-size:11px}
    .desc{padding:12px 14px 16px;grid-template-columns:1fr}
    .desc .where{text-align:left;padding:0;white-space:normal}
    .layer.major .desc h3{font-size:28px}
    .layer{min-height:calc(var(--yrs) * 18px)}
    .work{grid-template-columns:1fr}
    .lib{grid-template-columns:1fr}
    .work article:nth-child(2){border-top:0}
    .base{grid-template-columns:1fr;gap:48px}
    .btn.ghost{margin:10px 0 0}
    footer .wrap{flex-direction:column;gap:10px}
  }

/* ---------- about page (professional) ---------- */
.home-hero .subtitle{font:600 15px/1.4 var(--body);color:var(--ink);margin:10px 0 0;letter-spacing:.01em}
.about-page .home-hero h1{font-size:clamp(40px,4.6vw,56px)}
.glance dl{margin:0;display:grid;grid-template-columns:1fr;gap:0}
.glance dt{font:600 11.5px/1 var(--body);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);padding-top:14px}
.glance dd{margin:6px 0 0;padding-bottom:14px;border-bottom:1px solid var(--rule);font:500 16px/1.4 var(--body);color:var(--ink)}
.glance dd:last-child{border-bottom:0;padding-bottom:0}
.about-page .log{background:#fff;border:1px solid var(--rule);border-radius:6px;overflow:hidden;box-shadow:0 1px 2px rgba(30,38,41,.06);margin-bottom:24px}
.about-page .log-head{border-bottom:1px solid var(--rule);background:var(--sheet);font:600 11px/1.2 var(--body);letter-spacing:.08em}
.about-page .layer{border-bottom:1px solid var(--rule)}
.about-page .layer:last-of-type{border-bottom:1px solid var(--rule)}
.about-page .col{border-right:1px solid var(--rule)}
.about-page .depth{font:600 13px/1 var(--body);color:var(--ink-soft)}
.about-page .depth::after{border-top:1px solid var(--ink-soft)}
.about-page .desc h3,.about-page .layer.major .desc h3{font:600 22px/1.15 var(--display);text-transform:none;letter-spacing:0}
.about-page .desc .where{font:500 13px/1.4 var(--body)}
.about-page .desc .role{font-size:15px}
.about-page .desc .note{font-size:15px;line-height:1.6}
.about-page .desc .uscs{font:italic 13px/1.4 var(--body)}
.about-page .layer:hover .desc{background:#fafbfa}
.about-page .eob{font:500 12.5px/1.4 var(--body);text-transform:none;letter-spacing:0;color:var(--ink-soft)}
.about-page .work{border:0;gap:24px;margin-bottom:24px}
.about-page .work article{background:#fff;border:1px solid var(--rule);border-radius:6px;padding:26px 28px;box-shadow:0 1px 2px rgba(30,38,41,.06)}
.about-page .work article:nth-child(-n+2){border-top:1px solid var(--rule)}
.about-page .work h3{font:600 23px/1.15 var(--display);text-transform:none}
.about-page .work p{font-size:15.5px;line-height:1.6}
.about-page .base{gap:24px;margin-bottom:96px}
.about-page .base > div{background:#fff;border:1px solid var(--rule);border-radius:6px;padding:28px 30px;box-shadow:0 1px 2px rgba(30,38,41,.06)}
.sub-h{font:600 28px/1.1 var(--display);margin:0 0 14px}
.about-page .base li{font-size:15.5px}
.about-page .base li span:last-child{font:500 13.5px var(--body)}
.about-page .contact p{font-size:17px;max-width:none;color:var(--ink-soft)}
@media (max-width:760px){
  .about-page .work{gap:16px}
  .about-page .work article{padding:22px}
  .about-page .base > div{padding:22px}
  .about-page .base{gap:16px;margin-bottom:64px}
  .about-page .desc h3,.about-page .layer.major .desc h3{font-size:20px}
}
.site-footer .wrap:not(.cols){display:block;padding-top:0;padding-bottom:0}

/* ---------- home: reader-first sections ---------- */
.pain{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:14px}
.pain li{background:#fff;border:1px solid var(--rule);border-left:4px solid var(--flag);border-radius:6px;padding:16px 20px;font-size:16.5px;line-height:1.5}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.steps li{background:#fff;border:1px solid var(--rule);border-radius:6px;padding:22px 22px 20px;box-shadow:0 1px 2px rgba(30,38,41,.06)}
.steps .n{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--ink);color:#fff;font:600 15px/1 var(--body);margin-bottom:14px}
.steps h3{font:600 23px/1.1 var(--display);margin:0 0 8px}
.steps p{margin:0;color:var(--ink-soft);font-size:15.5px;line-height:1.6}
.proof{margin:24px 0 0;padding:16px 20px;border-left:3px solid var(--flag);background:var(--sheet);font-size:16px;line-height:1.55}
.proof a{color:var(--ink)}
.benesch-band{background:var(--ink);color:rgba(255,255,255,.86);border-radius:6px;padding:34px 36px;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center}
.benesch-band h2{font:600 32px/1.1 var(--display);color:#fff;margin:0 0 10px}
.benesch-band p{margin:0;max-width:62ch;line-height:1.6}
.benesch-band .eyebrow{color:#ff8a4c;margin-bottom:12px}
.benesch-band .button.secondary{border-color:#fff;color:#fff;white-space:nowrap}
.benesch-band .button.secondary:hover{background:#fff;color:var(--ink)}
.cta-close{margin:56px 0 0;background:#fff;border:1px solid var(--rule);border-left:4px solid var(--flag);border-radius:6px;display:grid;grid-template-columns:1fr auto;align-items:center;gap:24px;padding:30px 32px}
.cta-close h2{font:600 30px/1.1 var(--display);margin:0 0 6px}
.cta-close p{margin:0;color:var(--ink-soft)}
.cta-close + .about-strip{margin-top:20px}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:760px){.steps{grid-template-columns:1fr}.benesch-band,.cta-close{grid-template-columns:1fr;padding:24px 22px}.benesch-band .button.secondary{white-space:normal}}

/* ---------- NANCY copy of the dirtbert.com theme ----------
   Colors and type follow the site conventions used on the
   GHRM manual and drilled shaft course pages. */
.theme-nancy{
  --ink:#2c2d2e; --ink-soft:#58595b; --rule:#d6dfd0;
  --flag:#4a8329; --vellum:#f3f7f0; --sheet:#eef5e9;
  --bn-green:#5a9e36; --bn-green-dark:#4a8329; --bn-green-deep:#3d6e22; --bn-gray:#58595b;
  --display:'Segoe UI',Helvetica,Arial,sans-serif; --body:'Segoe UI',Helvetica,Arial,sans-serif;
  background:var(--vellum);
}
.theme-nancy .masthead{border-bottom:0}
.theme-nancy .navbar{background:var(--bn-green-dark)}
.theme-nancy .subnav a{color:rgba(255,255,255,.88)}
.theme-nancy .subnav a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.5)}
.theme-nancy .subnav a[aria-current="page"]{color:#fff;border-bottom-color:#fff}
.theme-nancy .home-hero{border-bottom:3px solid var(--bn-green)}
.theme-nancy h1,.theme-nancy h2,.theme-nancy h3{font-family:var(--display);font-weight:700;letter-spacing:-.01em}
.theme-nancy .home-hero h1{font-weight:800}
.theme-nancy .eyebrow{color:var(--bn-green-dark)}
.theme-nancy .focus{border-left-color:var(--bn-green)}
.theme-nancy .focus li{font-family:var(--display);font-weight:600;font-size:18px}
.theme-nancy .button{border-color:var(--bn-green-dark)}
.theme-nancy .button.primary{background:var(--bn-green-dark);color:#fff}
.theme-nancy .button.primary:hover{background:var(--bn-green-deep);border-color:var(--bn-green-deep)}
.theme-nancy .button.secondary{color:var(--bn-green-dark)}
.theme-nancy .button.secondary:hover{background:var(--bn-green-dark);color:#fff}
.theme-nancy .pain li{border-left-color:var(--bn-green)}
.theme-nancy .steps .n{background:var(--bn-green)}
.theme-nancy .proof{border-left-color:var(--bn-green);background:#fff}
.theme-nancy .proof a{color:var(--bn-green-dark)}
.theme-nancy .benesch-band{background:var(--bn-green-dark);color:#fff}
.theme-nancy .benesch-band .eyebrow{color:#dcefcf}
.theme-nancy .benesch-band .button.secondary{border-color:#fff;color:#fff}
.theme-nancy .benesch-band .button.secondary:hover{background:#fff;color:var(--bn-green-dark)}
.theme-nancy .card:hover{border-color:var(--bn-green)}
.theme-nancy .card .icon{background:var(--sheet)}
.theme-nancy .card .more{color:var(--bn-green-dark)}
.theme-nancy .cta-close{border-left-color:var(--bn-green)}
.theme-nancy .site-footer{background:var(--bn-gray)}
.theme-nancy .card h3{font-size:22px}

/* ---------- Our approach: rail route graphic ---------- */
.route{position:relative;background:#fff;border:1px solid var(--rule);border-radius:8px;padding:34px 28px 26px;box-shadow:0 1px 2px rgba(30,38,41,.06);overflow:hidden}
.route .track{position:absolute;left:12.5%;right:12.5%;top:62px;height:18px;
  border-top:4px solid #8a8c8e;border-bottom:4px solid #8a8c8e;
  background:repeating-linear-gradient(90deg,#b49a78 0 7px,transparent 7px 20px)}
.route .track .fill{position:absolute;left:0;top:-4px;bottom:-4px;width:0;border-top:4px solid #5a9e36;border-bottom:4px solid #5a9e36;transition:width 2.4s cubic-bezier(.45,0,.2,1)}
.route .train{position:absolute;top:-17px;left:0;width:58px;height:22px;transform:translateX(-50%);transition:left 2.4s cubic-bezier(.45,0,.2,1),opacity .4s 2.3s}
.route .train svg{width:100%;height:100%;display:block}
.route.in .track .fill{width:100%}
.route.in .train{left:100%;opacity:0}
.stations{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.station{text-align:center;padding:0 6px}
.station .marker{position:relative;z-index:1;display:grid;place-items:center;width:76px;height:76px;margin:0 auto;border-radius:50%;
  background:#fff;color:#8a8c8e;border:4px solid #c9d3c3;box-shadow:0 0 0 6px #fff;
  transition:background .4s,color .4s,border-color .4s,transform .4s;transition-delay:calc(var(--i)*.6s + .3s)}
.station .marker svg{width:34px;height:34px}
.route.in .station .marker{background:#4a8329;color:#fff;border-color:#5a9e36;transform:scale(1.04)}
.station .mp{display:inline-block;margin:14px 0 6px;font:700 11px/1 var(--body);letter-spacing:.12em;color:#fff;background:#58595b;padding:5px 8px;border-radius:3px}
.station h3{font:700 22px/1.1 var(--display);margin:4px 0 8px}
.station p{margin:0;color:var(--ink-soft);font-size:15px;line-height:1.55}
.loopback{height:46px;margin:14px 12.5% 0;opacity:.0;transition:opacity .6s 2.6s}
.loopback svg{width:100%;height:100%;display:block}
.route.in .loopback{opacity:1}
.loop-note{margin:6px 0 0;text-align:center;color:var(--ink-soft);font-size:14.5px}
.loop-note span{color:#4a8329;font-weight:700;margin-right:4px}
@media (prefers-reduced-motion:reduce){.route *{transition:none !important}}
@media (max-width:760px){
  .route{padding:24px 18px 20px}
  .route .track{display:none}
  .station{position:relative}
  .station:not(:last-child)::before{content:"";position:absolute;left:29px;top:62px;bottom:-24px;width:10px;
    border-left:4px solid #8a8c8e;border-right:4px solid #8a8c8e;
    background:repeating-linear-gradient(180deg,#b49a78 0 6px,transparent 6px 16px);
    transition:border-color .4s;transition-delay:calc(var(--i)*.6s + .6s)}
  .route.in .station:not(:last-child)::before{border-color:#5a9e36}
  .route .train{display:none}
  .stations{grid-template-columns:1fr;gap:22px}
  .station{display:grid;grid-template-columns:76px 1fr;column-gap:16px;text-align:left;padding:0}
  .station .marker{grid-row:1 / span 3;width:64px;height:64px;margin:0 6px}
  .station .marker svg{width:28px;height:28px}
  .station .mp{margin:4px 0 2px;justify-self:start}
  .station h3{margin:2px 0 4px}
  .loopback{display:none}
  .loop-note{text-align:left;margin-top:16px}
}

/* ---------- Challenges: embankment cross-section graphic ---------- */
.xsec{display:grid;grid-template-columns:1fr;gap:22px;background:#fff;border:1px solid var(--rule);border-radius:8px;padding:24px;box-shadow:0 1px 2px rgba(30,38,41,.06)}
.xs-fig{margin:0;border-radius:6px;overflow:hidden;border:1px solid #e3e9de}
.xs-svg{display:block;width:100%;height:auto}
.xs-svg .hs .dot{fill:#2c2d2e;stroke:#fff;stroke-width:3;transition:fill .25s}
.xs-svg .hs text{fill:#fff;font:800 19px 'Segoe UI',Arial,sans-serif;text-anchor:middle;pointer-events:none}
.xs-svg .hs .pulse{fill:none;stroke:#5a9e36;stroke-width:3;opacity:0;transform-box:fill-box;transform-origin:center}
.xs-svg .hs{cursor:pointer}
.xs-svg .hs.on .dot{fill:#4a8329}
.xsec.in .xs-svg .hs .pulse{animation:xs-pulse 2.4s ease-out infinite}
.xsec.in .xs-svg .hs[data-n="2"] .pulse{animation-delay:.3s}.xsec.in .xs-svg .hs[data-n="3"] .pulse{animation-delay:.6s}
.xsec.in .xs-svg .hs[data-n="4"] .pulse{animation-delay:.9s}.xsec.in .xs-svg .hs[data-n="5"] .pulse{animation-delay:1.2s}
@keyframes xs-pulse{0%{opacity:.9;transform:scale(1)}100%{opacity:0;transform:scale(2.1)}}
.xs-svg .hz{stroke-dashoffset:0}
.xsec.in .xs-svg .hz{animation:xs-dash 1.6s linear infinite}
@keyframes xs-dash{to{stroke-dashoffset:-28}}
.xs-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.xs-list li{display:grid;grid-template-columns:1fr;gap:8px;align-items:start;padding:12px 12px 14px;background:#f7faf5;border-radius:6px;border:1px solid transparent;transition:background .2s,border-color .2s;cursor:default}
.xs-list li:focus-visible{outline:2px solid #4a8329;outline-offset:2px}
.xs-list li.on{background:#eef5e9;border-color:#cfe2c2}
.xs-list .num{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:#2c2d2e;color:#fff;font:800 14px/1 var(--body);transition:background .2s}
.xs-list li.on .num{background:#4a8329}
.xs-list h3{font:700 17px/1.25 var(--display);margin:3px 0 3px}
.xs-list p{margin:0;color:var(--ink-soft);font-size:14.5px;line-height:1.5}
@media (prefers-reduced-motion:reduce){.xsec .xs-svg *{animation:none !important}}
@media (max-width:1000px){.xs-list{grid-template-columns:repeat(3,1fr)}}
@media (max-width:760px){.xsec{padding:14px}.xs-list{grid-template-columns:1fr}.xs-list li{grid-template-columns:34px 1fr;gap:12px}}

/* six challenges: 3 x 2 grid */
.xs-list{grid-template-columns:repeat(3,1fr)}
.xsec.in .xs-svg .hs[data-n="6"] .pulse{animation-delay:1.5s}
.xs-list li{align-content:start}
@media (max-width:760px){.xs-list{grid-template-columns:1fr}}
@media (max-width:760px){.xs-list li{grid-template-columns:34px 1fr}}