/* Axum Consulting & Engineering */
:root{
  --ink:#1B2530;        /* deep slate, text + dark panels */
  --slate:#4E5C6B;      /* logo slate */
  --steel:#8A96A3;      /* secondary lines */
  --concrete:#D5D9DC;   /* rules */
  --limestone:#F2F3F0;  /* page */
  --paper:#FFFFFF;
  --redline:#B8322A;    /* markup only */
  --tide:#2F5C73;       /* water in drawing, links */
  --max:1200px;
  --head:"Archivo", "Helvetica Neue", Arial, sans-serif;
  --body:"Source Serif 4", Georgia, serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--limestone);color:var(--ink);font-family:var(--body);font-size:1.125rem;line-height:1.65;font-optical-sizing:auto}
img,svg{display:block;max-width:100%}
a{color:var(--tide);text-underline-offset:.18em;text-decoration-thickness:1px}
a:hover{color:var(--ink)}
:focus-visible{outline:2px solid var(--redline);outline-offset:3px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.6rem 1rem;z-index:50}
.skip:focus{left:1rem}
.wrap{max-width:var(--max);margin:0 auto;padding:0 clamp(1.25rem,4vw,3rem)}

h1,h2,h3,h4{font-family:var(--head);font-weight:600;letter-spacing:-.015em;line-height:1.1;margin:0;font-stretch:92%}
h1{font-size:clamp(2.3rem,4.6vw,3.7rem);font-weight:650;letter-spacing:-.025em;line-height:1.02}
h2{font-size:clamp(1.85rem,3.2vw,2.6rem)}
h3{font-size:1.3rem;letter-spacing:-.005em;line-height:1.25}
p{margin:0 0 1.1em}
.lede{font-size:clamp(1.2rem,1.7vw,1.42rem);line-height:1.55;color:#3A4652;max-width:36em}
.measure{max-width:40em}

/* Header */
.site-head{background:var(--limestone);border-bottom:1px solid var(--concrete);position:sticky;top:0;z-index:20}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:1.5rem}
.brand{display:flex;align-items:center;gap:.8rem;text-decoration:none;color:var(--ink)}
.brand img{height:40px;width:auto}
.brand-text{display:flex;flex-direction:column;line-height:1}
.brand-name{font-family:var(--head);font-weight:650;font-size:1.32rem;letter-spacing:.14em;font-stretch:100%}
.brand-sub{font-family:var(--head);font-size:.72rem;color:var(--slate);letter-spacing:.02em;margin-top:.32rem}
.nav{display:flex;align-items:center;gap:1.6rem}
.nav a{font-family:var(--head);font-size:.95rem;color:var(--ink);text-decoration:none;padding:.4rem 0;border-bottom:1.5px solid transparent}
.nav a:hover,.nav a[aria-current="page"]{border-bottom-color:var(--ink)}
.nav .call{border:1.5px solid var(--ink);padding:.55rem 1rem;border-radius:2px}
.nav .call:hover{background:var(--ink);color:#fff}
.menu-btn{display:none;background:none;border:1.5px solid var(--ink);border-radius:2px;font-family:var(--head);font-size:.9rem;padding:.45rem .8rem;color:var(--ink);cursor:pointer}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;font-family:var(--head);font-weight:600;font-size:1rem;text-decoration:none;padding:.95rem 1.5rem;border-radius:2px;border:1.5px solid var(--ink);transition:background .15s,color .15s}
.btn-solid{background:var(--ink);color:#fff}
.btn-solid:hover{background:#0f171f;color:#fff}
.btn-line{color:var(--ink);background:transparent}
.btn-line:hover{background:var(--ink);color:#fff}
.btn-light{border-color:#fff;color:#fff}
.btn-light:hover{background:#fff;color:var(--ink)}
.btns{display:flex;flex-wrap:wrap;gap:.85rem;margin-top:2rem}

/* Hero */
.hero{padding:clamp(3.5rem,7vw,6rem) 0 clamp(3rem,6vw,5rem)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:clamp(2rem,5vw,4.5rem);align-items:center}
.hero h1{margin-bottom:1.5rem}
.hero .btns{gap:.7rem}
.hero .btn{padding:.9rem 1.15rem;font-size:.96rem}
.motto{font-family:var(--head);font-size:1rem;color:var(--slate);margin:0 0 1.6rem;letter-spacing:.01em}
.drawing{margin:0;background:var(--paper);border:1px solid var(--concrete);padding:clamp(.75rem,2vw,1.5rem)}
.drawing figcaption{font-family:var(--head);font-size:.82rem;color:var(--slate);border-top:1px solid var(--concrete);margin-top:.8rem;padding-top:.7rem;display:flex;justify-content:space-between;gap:1rem}

/* Facts band */
.facts{border-top:1px solid var(--concrete);border-bottom:1px solid var(--concrete);background:var(--paper)}
.facts dl{display:grid;grid-template-columns:repeat(4,1fr);margin:0}
.facts dl>div{padding:1.9rem 1.5rem 1.9rem 0;border-right:1px solid var(--concrete)}
.facts dl>div+div{padding-left:1.5rem}
.facts dl>div:last-child{border-right:0}
.facts dt{font-family:var(--head);font-weight:650;font-size:1.65rem;letter-spacing:-.02em;line-height:1.1}
.facts dd{margin:.4rem 0 0;font-size:.98rem;color:#46525E;line-height:1.45}

/* Sections */
.section{padding:clamp(4rem,8vw,7rem) 0}
.section-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.35fr);gap:clamp(1.5rem,4vw,4rem);margin-bottom:clamp(2.5rem,5vw,4rem);align-items:end}
.section-head p{margin:0;color:#3A4652;max-width:34em}
.paper{background:var(--paper)}

.services{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1.5px solid var(--ink)}
.service{padding:2.2rem 2.5rem 2.4rem 0;border-bottom:1px solid var(--concrete)}
.service:nth-child(even){padding-left:2.5rem;padding-right:0;border-left:1px solid var(--concrete)}
.service h3{margin-bottom:.8rem}
.service p{color:#3A4652;margin:0 0 1rem}
.service ul{margin:0;padding:0;list-style:none;font-size:1rem;color:#46525E}
.service li{padding:.3rem 0 .3rem 1.1rem;position:relative}
.service li::before{content:"";position:absolute;left:0;top:1.02em;width:.45rem;height:1.5px;background:var(--slate)}

/* Audience split */
.split{display:grid;grid-template-columns:repeat(3,1fr)}
.panel{display:flex;flex-direction:column;padding:clamp(3rem,5vw,4.5rem) clamp(1.5rem,3vw,3rem)}
.panel h2{font-size:clamp(1.5rem,2.1vw,1.9rem);margin-bottom:1rem}
.panel p{max-width:30em}
.panel .btns{margin-top:auto;padding-top:1.5rem}
.panel-dark{background:var(--ink);color:#E9ECEE}
.panel-dark p{color:#C3CAD0}
.panel-slate{background:var(--slate);color:#fff}
.panel-tide{background:#263F4E;color:#fff}
.panel-tide p{color:#D3DEE4}
.panel-slate p{color:#E2E6EA}
.panel .who{font-family:var(--head);font-size:.95rem;margin-bottom:1.25rem;color:inherit;opacity:.8}

/* Law note */
.law{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.35fr);gap:clamp(1.5rem,4vw,4rem)}
.law-steps{margin:0;padding:0;list-style:none;border-top:1.5px solid var(--ink)}
.law-steps li{display:grid;grid-template-columns:3.2rem 1fr;gap:1rem;padding:1.4rem 0;border-bottom:1px solid var(--concrete)}
.law-steps .n{font-family:var(--head);font-weight:600;font-size:1.05rem;color:var(--slate)}
.law-steps h3{font-size:1.15rem;margin-bottom:.35rem}
.law-steps p{margin:0;font-size:1.02rem;color:#3A4652}
.fine{font-size:.9rem;color:#5B6671;margin-top:1.2rem}

/* Principal */
.principal{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(2rem,5vw,5rem);align-items:start}
.creds{margin:0;padding:0;list-style:none;border-top:1.5px solid var(--ink)}
.creds li{padding:1rem 0;border-bottom:1px solid var(--concrete);font-size:1.02rem}
.creds strong{font-family:var(--head);font-weight:600;display:block;font-size:1.02rem}
.creds span{color:#4A5662}

/* Lists */
.cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 3rem;margin:0;padding:0;list-style:none;border-top:1.5px solid var(--ink)}
.cols li{padding:1.05rem 0;border-bottom:1px solid var(--concrete)}
.cols strong{font-family:var(--head);font-weight:600}
.steps{counter-reset:s;margin:0;padding:0;list-style:none;border-top:1.5px solid var(--ink)}
.steps li{counter-increment:s;display:grid;grid-template-columns:3.2rem 1fr;gap:1rem;padding:1.5rem 0;border-bottom:1px solid var(--concrete)}
.steps li::before{content:counter(s,decimal-leading-zero);font-family:var(--head);font-weight:600;color:var(--slate)}
.steps h3{font-size:1.15rem;margin-bottom:.3rem}
.steps p{margin:0;color:#3A4652;font-size:1.02rem}

/* FAQ */
.faq{border-top:1.5px solid var(--ink)}
.faq details{border-bottom:1px solid var(--concrete)}
.faq summary{list-style:none;cursor:pointer;font-family:var(--head);font-weight:600;font-size:1.15rem;padding:1.35rem 2.5rem 1.35rem 0;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:.3rem;top:50%;width:.7rem;height:.7rem;border-right:1.5px solid var(--ink);border-bottom:1.5px solid var(--ink);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq details p{margin:0 0 1.4rem;max-width:44em;color:#3A4652}

/* Page hero (inner) */
.page-hero{padding:clamp(3.5rem,7vw,6rem) 0 clamp(2.5rem,5vw,4rem);border-bottom:1px solid var(--concrete)}
.page-hero .crumb{font-family:var(--head);font-size:.92rem;color:var(--slate);margin-bottom:1.25rem}
.page-hero .crumb a{color:var(--slate)}
.page-hero h1{max-width:15em;margin-bottom:1.5rem}

/* CTA */
.cta{background:var(--ink);color:#fff;padding:clamp(3.5rem,7vw,5.5rem) 0}
.cta .wrap{display:flex;justify-content:space-between;align-items:end;gap:2rem;flex-wrap:wrap}
.cta h2{max-width:18em}
.cta p{color:#C3CAD0;margin:.9rem 0 0;max-width:34em}
.cta .btns{margin-top:0}

/* Contact form */
.contact{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:clamp(2rem,5vw,5rem)}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
.field{display:flex;flex-direction:column;margin-bottom:1.15rem}
label{font-family:var(--head);font-size:.92rem;font-weight:600;margin-bottom:.4rem}
input,select,textarea{font:inherit;font-size:1rem;padding:.8rem .9rem;border:1px solid #AEB6BE;border-radius:2px;background:#fff;color:var(--ink)}
textarea{min-height:9rem;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--ink);outline-offset:0;border-color:var(--ink)}
.form-note{font-size:.92rem;color:#5B6671}
.form-status{font-family:var(--head);font-size:.98rem;margin-top:1rem;min-height:1.4em}
.aside{border-top:1.5px solid var(--ink)}
.aside div{padding:1.1rem 0;border-bottom:1px solid var(--concrete)}
.aside strong{font-family:var(--head);display:block;font-size:.92rem;color:var(--slate);font-weight:600;margin-bottom:.2rem}

/* Footer */
.site-foot{background:#141C24;color:#AEB7C0;padding:3.5rem 0 2.5rem;font-size:.98rem}
.site-foot .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem}
.site-foot a{color:#E2E6EA;text-decoration:none}
.site-foot a:hover{text-decoration:underline}
.site-foot h4{font-size:.95rem;color:#fff;margin-bottom:.8rem;font-weight:600}
.site-foot ul{list-style:none;margin:0;padding:0}
.site-foot li{padding:.2rem 0}
.foot-brand{display:flex;gap:.8rem;align-items:center;margin-bottom:1rem;color:#fff}
.foot-brand img{height:36px;filter:brightness(0) invert(1);opacity:.85}
.legal{grid-column:1/-1;border-top:1px solid #2C3742;padding-top:1.5rem;margin-top:1.5rem;font-size:.86rem;color:#86919C;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem}

/* Drawing animation: one reveal of the redline markup */
.mk{opacity:0;animation:mark .5s ease-out forwards}
.mk.d1{animation-delay:.5s}.mk.d2{animation-delay:.85s}.mk.d3{animation-delay:1.2s}.mk.d4{animation-delay:1.55s}
@keyframes mark{to{opacity:1}}
@media (prefers-reduced-motion:reduce){.mk{animation:none;opacity:1}}

/* Responsive */
@media (max-width:980px){
  .hero .wrap,.section-head,.law,.principal,.contact{grid-template-columns:1fr}
  .facts dl{grid-template-columns:repeat(2,1fr)}
  .facts dl>div{border-bottom:1px solid var(--concrete)}
  .facts dl>div:nth-child(2){border-right:0}
  .facts dl>div:nth-child(3){padding-left:0}
  .facts dl>div:nth-child(n+3){border-bottom:0}
  .split{grid-template-columns:1fr}
}
@media (max-width:1080px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;top:76px;left:0;right:0;background:var(--limestone);flex-direction:column;align-items:flex-start;gap:0;padding:.5rem clamp(1.25rem,4vw,3rem) 1.25rem;border-bottom:1px solid var(--concrete)}
  .nav.open{display:flex}
  .nav a{padding:.8rem 0;width:100%;border-bottom:1px solid var(--concrete)}
  .nav .call{margin-top:.9rem;text-align:center;border:1.5px solid var(--ink)}
}
@media (max-width:820px){
  .services,.cols{grid-template-columns:1fr}
  .service,.service:nth-child(even){padding:2rem 0;border-left:0}
  .site-foot .wrap{grid-template-columns:1fr}
  form .row{grid-template-columns:1fr}
}
@media (max-width:520px){
  .facts dl{grid-template-columns:1fr}
  .facts dl>div,.facts dl>div+div{padding:1.4rem 0;border-right:0;border-bottom:1px solid var(--concrete)}
  .facts dl>div:last-child{border-bottom:0}
  .brand-sub{display:none}
  .btn{width:100%}
}
.drawing svg{width:100%;height:auto}
.portrait{width:100%;max-width:240px;height:auto;aspect-ratio:4/5;object-fit:cover;margin-top:2.25rem;border:1px solid var(--concrete)}
.principal>div:first-child>.portrait:first-child{margin-top:0}
@media (max-width:980px){.portrait{max-width:200px}}

/* Field photos */
.photos{display:grid;gap:clamp(1rem,2vw,1.5rem)}
.photos-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.photos-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.photos-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.photo{margin:0}
.photo img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;background:var(--concrete)}
.photo figcaption{font-family:var(--head);font-size:.88rem;line-height:1.4;color:var(--slate);padding-top:.7rem;border-top:1px solid var(--concrete);margin-top:.7rem}
.photo-band{padding:clamp(2.5rem,5vw,4rem) 0 0}
.field{padding-top:0}
@media (max-width:980px){.photos-4,.photos-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.photos-4,.photos-3,.photos-2{grid-template-columns:1fr}}

/* Photo beside text at every width */
.principal.has-photo{grid-template-columns:240px minmax(0,1fr);gap:clamp(2rem,5vw,4.5rem)}
.principal.has-photo .portrait{margin-top:0;max-width:240px}
@media (max-width:980px){.principal.has-photo{grid-template-columns:190px minmax(0,1fr);gap:2rem}.principal.has-photo .portrait{max-width:190px}}
@media (max-width:640px){
  .principal.has-photo{display:block}
  .principal.has-photo::after{content:"";display:table;clear:both}
  .principal.has-photo>div:first-child{float:left;width:118px;margin:.3rem 1.1rem .6rem 0}
  .principal.has-photo .portrait{max-width:118px}
}
.band-dark{background:var(--ink);color:#fff}
.band-dark .lede{color:#E2E6EA}
.band-dark p{color:#C3CAD0}

/* residential */
.who-list{margin:0}
.who-list div{padding:1.2rem 0;border-top:1px solid var(--concrete);display:grid;grid-template-columns:minmax(0,2fr) minmax(0,5fr);gap:1.5rem}
.who-list div:last-child{border-bottom:1px solid var(--concrete)}
.who-list dt{font-family:var(--head);font-weight:600;font-size:1.1rem}
.who-list dd{margin:0;color:#3A4652}
@media (max-width:640px){.who-list div{grid-template-columns:1fr;gap:.3rem}}