/* ELK Group — shared stylesheet */
:root{
  --ink:#0f1417; --ink-2:#1a2126; --ink-3:#252e35;
  --paper:#f5f3ef; --paper-2:#ebe7e0; --line:#d9d3c9;
  --text:#1b1f22; --muted:#5f676d; --muted-dark:#9aa4ab;
  --accent:#c8a45c;           /* brand brass */
  --eng:#3d8bd4;              /* Engineering & Design */
  --home:#b98a5a;             /* Custom Homes */
  --pm:#4fae8a;               /* Project Management */
  --radius:4px; --max:1200px;
  --serif:"Fraunces",Georgia,serif; --sans:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--text);background:var(--paper);line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{line-height:1.12;margin:0 0 .5em;font-weight:600;letter-spacing:-.01em}
h1{font-family:var(--serif);font-weight:500;font-size:clamp(2.4rem,6vw,4.6rem)}
h2{font-family:var(--serif);font-weight:500;font-size:clamp(1.8rem,3.6vw,2.8rem)}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.eyebrow{font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;font-weight:600;color:var(--sec,var(--accent));margin-bottom:1rem;display:inline-block}
.lead{font-size:1.2rem;color:var(--muted);max-width:44ch}
.dark .lead{color:var(--muted-dark)}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;background:#fff;padding:8px 12px;z-index:99}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(15,20,23,.92);backdrop-filter:blur(8px);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:600;letter-spacing:.06em}
.brand-mark{width:34px;height:34px}
.brand small{display:block;font-weight:400;font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--sec,var(--accent))}
.nav{display:flex;gap:26px;align-items:center;font-size:.92rem}
.nav a{text-decoration:none;color:#cfd6db}
.nav a:hover,.nav a[aria-current]{color:#fff}
.nav .btn{color:var(--ink)}
.menu-toggle{display:none;background:none;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:var(--radius);padding:8px 12px;font:inherit;font-size:.85rem}
@media (max-width:860px){
  .menu-toggle{display:block}
  .nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);flex-direction:column;align-items:flex-start;padding:16px 24px 24px;gap:16px;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav.open{display:flex}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--sec,var(--accent));color:var(--ink);text-decoration:none;font-weight:600;padding:13px 22px;border-radius:var(--radius);font-size:.95rem;border:1px solid transparent;transition:transform .15s,filter .15s}
.btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn.ghost{background:transparent;color:inherit;border-color:currentColor}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* Sections */
section{padding:96px 0}
.dark{background:var(--ink);color:#e9edf0}
.alt{background:var(--paper-2)}
.section-head{max-width:720px;margin-bottom:56px}

/* Hub hero */
.hub-hero{background:var(--ink);color:#fff;padding:88px 0 0;position:relative;overflow:hidden}
.hub-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(to bottom,#000 40%,transparent)}
.hub-hero .wrap{position:relative}
.hub-hero h1{max-width:16ch}
.hub-hero .lead{color:var(--muted-dark)}
.portals{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;margin-top:64px;background:rgba(255,255,255,.08)}
.portal{--c:var(--accent);position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:440px;padding:36px 32px;text-decoration:none;color:#fff;background:var(--ink-2);overflow:hidden;transition:background .3s}
.portal::after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--c);transform:scaleX(.18);transform-origin:left;transition:transform .35s}
.portal:hover,.portal:focus-visible{background:var(--ink-3)}
.portal:hover::after,.portal:focus-visible::after{transform:scaleX(1)}
.portal .art{position:absolute;top:32px;right:28px;width:150px;height:150px;opacity:.55;transition:opacity .3s,transform .4s;color:var(--c)}
.portal:hover .art{opacity:1;transform:translateY(-4px)}
.portal .num{font-size:.8rem;letter-spacing:.2em;color:var(--c);font-weight:600;margin-bottom:auto}
.portal h2{font-size:clamp(1.7rem,2.6vw,2.2rem);margin:0 0 .4em}
.portal p{color:var(--muted-dark);font-size:.98rem;max-width:30ch}
.portal .go{margin-top:18px;font-weight:600;font-size:.92rem;color:var(--c);display:flex;align-items:center;gap:8px}
.portal .go span{transition:transform .2s}.portal:hover .go span{transform:translateX(5px)}
.portal.eng{--c:var(--eng)}.portal.home{--c:var(--home)}.portal.pm{--c:var(--pm)}
@media (max-width:900px){.portals{grid-template-columns:1fr}.portal{min-height:300px}}

/* Grids & cards */
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px}
.dark .card{background:var(--ink-2);border-color:rgba(255,255,255,.08)}
.card .ico{width:40px;height:40px;color:var(--sec,var(--accent));margin-bottom:18px}
.card p{color:var(--muted);font-size:.97rem;margin:0}
.dark .card p{color:var(--muted-dark)}
.card ul{margin:12px 0 0;padding-left:18px;color:var(--muted);font-size:.94rem}

/* Split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:40px}}
.ticks{list-style:none;padding:0;margin:24px 0 0}
.ticks li{padding:12px 0 12px 32px;border-top:1px solid var(--line);position:relative}
.dark .ticks li{border-color:rgba(255,255,255,.1)}
.ticks li::before{content:"";position:absolute;left:0;top:20px;width:14px;height:8px;border-left:2px solid var(--sec,var(--accent));border-bottom:2px solid var(--sec,var(--accent));transform:rotate(-45deg)}

/* Process */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line)}
.dark .steps{border-color:rgba(255,255,255,.12)}
.step{padding:28px 20px 0 0;counter-increment:s}
.step::before{content:"0" counter(s);display:block;font-family:var(--serif);font-size:2rem;color:var(--sec,var(--accent));margin-bottom:10px}
.step p{font-size:.93rem;color:var(--muted)}.dark .step p{color:var(--muted-dark)}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr;gap:8px 24px}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}

/* Sub-site hero */
.sub-hero{background:var(--ink);color:#fff;padding:110px 0 100px;position:relative;overflow:hidden}
.sub-hero .wrap{position:relative;display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center}
.sub-hero .art{color:var(--sec);opacity:.9}
.sub-hero .lead{color:var(--muted-dark)}
.sub-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(800px 400px at 85% 30%,color-mix(in srgb,var(--sec) 22%,transparent),transparent 70%)}
@media (max-width:860px){.sub-hero .wrap{grid-template-columns:1fr}.sub-hero .art{max-width:260px}}
.crumbs{font-size:.85rem;color:var(--muted-dark);margin-bottom:28px}
.crumbs a{text-decoration:none;color:#cfd6db}.crumbs a:hover{color:#fff}

/* Sibling strip */
.siblings{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.sib{--c:var(--accent);display:block;padding:24px;border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;background:#fff;border-top:3px solid var(--c);transition:transform .15s}
.sib:hover{transform:translateY(-2px)}
.sib strong{display:block;font-size:1.05rem;margin-bottom:4px}.sib span{color:var(--muted);font-size:.92rem}
.sib.eng{--c:var(--eng)}.sib.home{--c:var(--home)}.sib.pm{--c:var(--pm)}
.sib[aria-current]{opacity:.5;pointer-events:none}
@media (max-width:760px){.siblings{grid-template-columns:1fr}}

/* Values strip */
.values{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.values div{border-left:2px solid var(--sec,var(--accent));padding-left:18px}
.values strong{display:block;margin-bottom:6px}
.values p{color:var(--muted);font-size:.94rem;margin:0}
.dark .values p{color:var(--muted-dark)}
@media (max-width:900px){.values{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.values{grid-template-columns:1fr}}

/* CTA + contact */
.cta{background:var(--ink);color:#fff;text-align:left}
.cta .wrap{display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}
.cta h2{margin:0;max-width:20ch}
.contact-box{display:grid;grid-template-columns:1fr 1fr;gap:48px}
@media (max-width:760px){.contact-box{grid-template-columns:1fr}}
.contact-line{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-top:1px solid var(--line)}
.contact-line a{text-decoration:none;font-weight:600}.contact-line a:hover{text-decoration:underline}
.contact-line small{display:block;color:var(--muted);font-size:.82rem;letter-spacing:.08em;text-transform:uppercase}

/* Footer */
.site-footer{background:#0a0e10;color:var(--muted-dark);padding:56px 0 32px;font-size:.92rem}
.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;margin-bottom:40px}
.site-footer h4{color:#fff;font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;margin:0 0 14px}
.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin:6px 0}
.site-footer a{text-decoration:none}.site-footer a:hover{color:#fff}
.site-footer .base{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.84rem}
@media (max-width:760px){.site-footer .cols{grid-template-columns:1fr}}

/* Motion */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s,transform .6s}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}*{scroll-behavior:auto}}

/* Sub-site themes */
.theme-eng{--sec:var(--eng)}.theme-home{--sec:var(--home)}.theme-pm{--sec:var(--pm)}
.theme-home{--paper:#f6f1ea;--paper-2:#ede4d8}
.theme-home h1,.theme-home h2{font-weight:400}
@media (max-width:900px){.portal .art{width:84px;height:84px;top:24px;right:20px;opacity:.4}}

/* Contact form */
.cform{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:grid;gap:16px;align-self:start}
.cform label{display:grid;gap:6px;font-size:.85rem;font-weight:600;color:var(--text)}
.cform em{font-weight:400;color:var(--muted);font-style:normal}
.cform input,.cform select,.cform textarea{font:inherit;font-size:.98rem;font-weight:400;padding:11px 12px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);color:var(--text);width:100%}
.cform input:focus,.cform select:focus,.cform textarea:focus{outline:2px solid var(--sec,var(--accent));outline-offset:1px;border-color:transparent}
.cform textarea{resize:vertical;min-height:130px}
.cform .f2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:520px){.cform .f2{grid-template-columns:1fr}}
.cform button{justify-self:start;cursor:pointer}
.cform button[disabled]{opacity:.6;cursor:wait}
.cform .hp{position:absolute!important;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}
.fnote{font-size:.8rem;color:var(--muted);margin:0}
.fmsg{margin:0;font-size:.92rem;font-weight:500}.fmsg:empty{display:none}
.fmsg.ok{color:#1f7a55}.fmsg.err{color:#b3261e}
.contact-box .contact-line:first-of-type{margin-top:24px}