/* ===========================================================
   ELM Investigations — shared stylesheet
   Intelligence-console theme: deep slate + electric signal-blue
   =========================================================== */

:root{
  --ink:#121722;
  --ink2:#0E121B;          /* deeper band / footer */
  --panel:#1A202D;
  --panel2:#202837;
  --line:#2B3445;
  --line2:#374255;
  --sig:#5BA8FF;
  --sig-deep:#3E7FD0;
  --sig-soft:#8FC4FF;
  --sig-glow:rgba(91,168,255,.20);
  --text:#ECEFF4;
  --muted:#A4AEC0;
  --muted2:#8290A6;
  --ok:#5BD6A0;
  --warn:#ff8b7a;
  --disp:'Space Grotesk',sans-serif;
  --body:'Inter',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --maxw:1160px;
  --radius:16px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{
  background:var(--ink);
  background-image:linear-gradient(180deg,#141B27 0%,var(--ink) 420px);
  background-repeat:no-repeat;
  color:var(--text);font-family:var(--body);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
:focus-visible{outline:2px solid var(--sig);outline-offset:3px;border-radius:3px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px}
.skip{position:absolute;left:-999px;top:0;background:var(--sig);color:#04070C;padding:10px 16px;border-radius:8px;z-index:999}
.skip:focus{left:16px;top:16px}

/* eyebrow / readout */
.tag{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--sig)}
.tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--sig);box-shadow:0 0 10px var(--sig)}
.ref{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;color:var(--muted2);text-transform:uppercase}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--body);font-size:15px;font-weight:500;padding:14px 24px;border-radius:10px;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s;cursor:pointer}
.btn .ar{transition:transform .2s}
.btn:hover .ar{transform:translateX(4px)}
.btn.solid{background:var(--sig);color:#04070C;font-weight:600;border:none}
.btn.solid:hover{box-shadow:0 8px 30px var(--sig-glow);transform:translateY(-1px)}
.btn.line{border:1px solid var(--line2);color:var(--text);background:none}
.btn.line:hover{border-color:var(--sig)}

/* ===================== NAV ===================== */
nav{position:sticky;top:0;z-index:100;background:rgba(18,23,34,.80);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
nav .inner{max-width:var(--maxw);margin:0 auto;padding:14px 32px;display:flex;align-items:center;justify-content:space-between}
.brand img{height:34px;width:auto;display:block}
.nav-links{display:flex;gap:28px}
.nav-links a{font-size:14px;color:var(--muted);transition:color .2s;position:relative}
.nav-links a:hover{color:var(--text)}
.nav-links a.active{color:var(--text)}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-19px;height:2px;background:var(--sig)}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-cta{font-family:var(--mono);font-size:13px;letter-spacing:.04em;color:var(--sig);border:1px solid var(--line2);padding:9px 16px;border-radius:8px;transition:border-color .2s,background .2s;white-space:nowrap}
.nav-cta:hover{border-color:var(--sig);background:rgba(91,168,255,.07)}
.nav-ham{display:none;background:none;border:none;cursor:pointer;padding:6px 4px;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-ham span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s,opacity .25s}
.nav-ham[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-ham[aria-expanded="true"] span:nth-child(2){opacity:0;transform:scaleX(0)}
.nav-ham[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mobile{display:none;position:fixed;top:63px;left:0;right:0;background:rgba(18,23,34,.98);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);padding:12px 32px 24px;z-index:99;flex-direction:column}
.nav-mobile.open{display:flex}
.nav-mobile a{color:var(--muted);font-size:16px;padding:15px 0;border-bottom:1px solid var(--line);transition:color .2s;display:block}
.nav-mobile a:hover,.nav-mobile a.active{color:var(--text)}
.nav-mobile .nm-cta{border-bottom:none;color:var(--sig);font-family:var(--mono);font-size:13px;letter-spacing:.04em;padding-top:20px}

/* ===================== HOME HERO ===================== */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:118px 0 122px;min-height:78vh;display:flex;align-items:center}
#grid{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero-veil{position:absolute;inset:0;z-index:1;background:radial-gradient(120% 90% at 18% 12%,transparent,var(--ink) 78%),linear-gradient(180deg,transparent 60%,var(--ink))}
.hero .wrap{position:relative;z-index:2;max-width:880px}
.hero h1{font-family:var(--disp);font-weight:700;font-size:clamp(40px,7vw,82px);line-height:1.02;letter-spacing:-.03em;margin:24px 0 22px}
.hero h1 .hl{color:var(--sig)}
.hero .lede{font-size:clamp(17px,2.2vw,21px);color:var(--muted);max-width:620px;line-height:1.6}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.assure{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:42px;font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--muted2);text-transform:uppercase}
.assure span{display:inline-flex;align-items:center;gap:8px}
.assure span::before{content:"";width:5px;height:5px;background:var(--sig);border-radius:50%}

/* ===================== SUBPAGE HERO ===================== */
.subhero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:62px 0 56px;background:
  radial-gradient(90% 140% at 85% -10%,rgba(91,168,255,.10),transparent 60%),
  linear-gradient(180deg,#161D2A,var(--ink))}
.subhero::before{content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:46px 46px;-webkit-mask-image:radial-gradient(70% 100% at 80% 0,#000,transparent 70%);mask-image:radial-gradient(70% 100% at 80% 0,#000,transparent 70%)}
.subhero .wrap{position:relative;z-index:2;max-width:820px}
.crumb{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--muted2);margin-bottom:18px}
.crumb a{color:var(--muted2);transition:color .2s}
.crumb a:hover{color:var(--sig)}
.crumb .sep{margin:0 8px;color:var(--line2)}
.subhero h1{font-family:var(--disp);font-weight:700;font-size:clamp(32px,5.2vw,56px);line-height:1.04;letter-spacing:-.028em;margin:14px 0 18px}
.subhero .lede{font-size:clamp(16px,2vw,19px);color:var(--muted);max-width:640px;line-height:1.62}

/* ===================== SECTIONS ===================== */
section{padding:104px 0;border-bottom:1px solid var(--line)}
section.tight{padding:78px 0}
section.alt{background:var(--ink2)}
.sec-head{max-width:680px;margin-bottom:54px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head h2{font-family:var(--disp);font-weight:600;font-size:clamp(28px,4.2vw,46px);line-height:1.08;letter-spacing:-.025em;margin:14px 0 16px}
.sec-head p{color:var(--muted);font-size:17px;line-height:1.62}
.prose{max-width:720px}
.prose p{color:var(--muted);font-size:16.5px;line-height:1.75;margin-bottom:18px}
.prose p:last-child{margin-bottom:0}
.prose strong{color:var(--text);font-weight:600}

/* card grids */
.cap-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.cap{position:relative;display:block;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px 30px 28px;transition:border-color .25s,transform .25s,background .25s;overflow:hidden}
.cap::after{content:"";position:absolute;left:0;top:0;height:2px;width:0;background:linear-gradient(90deg,var(--sig),transparent);transition:width .4s}
.cap:hover{border-color:var(--line2);transform:translateY(-3px);background:var(--panel2)}
.cap:hover::after{width:100%}
.cap .ic{width:42px;height:42px;color:var(--sig);margin-bottom:18px}
.cap h3{font-family:var(--disp);font-weight:600;font-size:20px;letter-spacing:-.01em;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.cap p{color:var(--muted);font-size:15px;line-height:1.62}
.cap .tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}
.cap .tags span{font-family:var(--mono);font-size:11px;letter-spacing:.04em;color:var(--muted2);border:1px solid var(--line);border-radius:6px;padding:4px 8px}
.cap .code{position:absolute;top:24px;right:26px;font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted2)}
a.cap .more{margin-top:20px;font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--sig);display:inline-flex;align-items:center;gap:7px}
a.cap .more .ar{transition:transform .2s}
a.cap:hover .more .ar{transform:translateX(4px)}

/* method / process */
.method-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel)}
.step{padding:32px 26px;border-right:1px solid var(--line);position:relative}
.step:last-child{border-right:none}
.step .n{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--sig);margin-bottom:18px}
.step h3{font-family:var(--disp);font-weight:600;font-size:18px;margin-bottom:9px}
.step p{color:var(--muted);font-size:14.5px;line-height:1.6}

/* sectors */
.sec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.sector{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:border-color .25s,transform .25s}
.sector:hover{border-color:var(--line2);transform:translateY(-3px)}
.sector .ref{margin-bottom:16px;display:block}
.sector h3{font-family:var(--disp);font-weight:600;font-size:21px;margin-bottom:11px}
.sector p{color:var(--muted);font-size:15px;line-height:1.62}

/* why list */
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 40px}
.why-item{display:flex;gap:16px;padding:20px 0;border-top:1px solid var(--line)}
.why-item .mk{flex:none;width:26px;height:26px;border-radius:7px;background:rgba(91,168,255,.1);border:1px solid var(--line);display:grid;place-items:center;color:var(--sig)}
.why-item h3{font-family:var(--disp);font-weight:600;font-size:17px;margin-bottom:5px}
.why-item p{color:var(--muted);font-size:14.5px;line-height:1.58}

/* check list (service pages) */
.checks{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 32px;margin-top:8px}
.checks li{list-style:none;display:flex;gap:13px;align-items:flex-start;color:var(--muted);font-size:15.5px;line-height:1.5}
.checks li svg{flex:none;width:20px;height:20px;color:var(--sig);margin-top:2px}
.checks li b{color:var(--text);font-weight:600}

/* split feature row */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.split.flip .split-media{order:-1}
.split-media{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:34px;position:relative;overflow:hidden}
.split-media .ref{display:block;margin-bottom:18px}
.split h3{font-family:var(--disp);font-weight:600;font-size:clamp(24px,3vw,32px);letter-spacing:-.02em;margin-bottom:16px;line-height:1.12}

/* stat band */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{text-align:center;padding:8px}
.stat .num{font-family:var(--disp);font-weight:700;font-size:clamp(30px,4vw,44px);color:var(--sig);letter-spacing:-.02em}
.stat .lbl{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--muted2);text-transform:uppercase;margin-top:8px}

/* FAQ */
.faq{max-width:820px}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-q{width:100%;text-align:left;background:none;border:none;color:var(--text);font-family:var(--disp);font-weight:500;font-size:18px;letter-spacing:-.01em;padding:24px 44px 24px 0;cursor:pointer;position:relative;display:flex;align-items:center}
.faq-q::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-family:var(--mono);font-size:22px;color:var(--sig);transition:transform .25s}
.faq-q[aria-expanded="true"]::after{transform:translateY(-50%) rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{color:var(--muted);font-size:15.5px;line-height:1.66;padding:0 44px 26px 0}

/* CTA band */
.cta-band{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:linear-gradient(180deg,var(--ink2),var(--ink));text-align:center}
.cta-band .halo{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:680px;height:680px;max-width:120vw;background:radial-gradient(circle,var(--sig-glow),transparent 62%);opacity:.16;z-index:1;pointer-events:none}
.cta-band .wrap{position:relative;z-index:2;max-width:680px}
.cta-band h2{font-family:var(--disp);font-weight:600;font-size:clamp(28px,4.4vw,44px);line-height:1.08;letter-spacing:-.025em;margin:16px 0 16px}
.cta-band p{color:var(--muted);font-size:17px;line-height:1.62;margin-bottom:32px}
.cta-band .cta-row{justify-content:center}

/* ===================== CONTACT ===================== */
.contact{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.contact .halo{position:absolute;left:50%;top:30%;transform:translate(-50%,-50%);width:680px;height:680px;max-width:120vw;background:radial-gradient(circle,var(--sig-glow),transparent 62%);opacity:.14;z-index:1;pointer-events:none}
.contact .wrap{position:relative;z-index:2}
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.contact-aside h2{font-family:var(--disp);font-weight:600;font-size:clamp(28px,4vw,40px);line-height:1.08;letter-spacing:-.025em;margin:14px 0 18px}
.contact-aside p{color:var(--muted);font-size:16.5px;line-height:1.66;margin-bottom:26px}
.cinfo{list-style:none;display:flex;flex-direction:column;gap:18px}
.cinfo li{display:flex;gap:14px;align-items:flex-start}
.cinfo .ic{flex:none;width:34px;height:34px;border-radius:9px;background:rgba(91,168,255,.1);border:1px solid var(--line);display:grid;place-items:center;color:var(--sig)}
.cinfo .k{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted2);margin-bottom:3px}
.cinfo .v{font-size:15.5px;color:var(--text)}
.cinfo .v a{color:var(--sig)}

.cform{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.cform .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.cform .field{margin-bottom:14px}
.cform label{display:block;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted2);margin-bottom:7px}
.cform input,.cform select,.cform textarea{width:100%;background:var(--ink);border:1px solid var(--line2);border-radius:10px;color:var(--text);font-family:var(--body);font-size:15px;padding:13px 14px;transition:border-color .2s,box-shadow .2s}
.cform input:focus,.cform select:focus,.cform textarea:focus{outline:none;border-color:var(--sig);box-shadow:0 0 0 3px var(--sig-glow)}
.cform textarea{resize:vertical;min-height:130px}
.cform select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%238290A6' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.cform .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.cform .submit{width:100%;justify-content:center;border:none;margin-top:4px}
.cform .submit:disabled{opacity:.55;cursor:not-allowed}
.cform .note{font-family:var(--mono);font-size:11.5px;line-height:1.6;color:var(--muted2);letter-spacing:.02em;margin-top:16px;text-align:center}
.cform .status{margin-top:16px;text-align:center;font-size:14.5px;line-height:1.6;display:none}
.cform .status.show{display:block}
.cform .status.ok{color:var(--ok)}
.cform .status.err{color:var(--warn)}

/* ===================== FOOTER ===================== */
footer{border-top:1px solid var(--line);padding:64px 0 36px;background:var(--ink2)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:44px}
.foot-brand img{height:36px;width:auto;margin-bottom:18px}
.foot-brand p{color:var(--muted);font-size:14.5px;line-height:1.66;max-width:300px}
.foot-col h4{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted2);margin-bottom:16px}
.foot-col a,.foot-col span{display:block;color:var(--muted);font-size:14.5px;line-height:1.5;margin-bottom:11px;transition:color .2s}
.foot-col a:hover{color:var(--sig)}
.foot-bottom{border-top:1px solid var(--line);padding-top:26px;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center}
.foot-bottom .fmeta{font-family:var(--mono);font-size:11.5px;color:var(--muted2);letter-spacing:.04em;line-height:1.7}
.foot-bottom .fmeta a{color:var(--muted2)}
.foot-bottom .fmeta a:hover{color:var(--sig)}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ===================== RESPONSIVE ===================== */
@media(max-width:980px){
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .split{grid-template-columns:1fr;gap:30px}
  .split.flip .split-media{order:0}
  .stats{grid-template-columns:repeat(2,1fr);gap:28px 18px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media(max-width:880px){
  .nav-ham{display:flex}
  .nav-links{display:none}
  .cap-grid,.sec-grid,.method-grid,.why-grid,.checks{grid-template-columns:1fr}
  .method-grid .step{border-right:none;border-bottom:1px solid var(--line)}
  .method-grid .step:last-child{border-bottom:none}
  .hero{padding:84px 0 88px;min-height:auto}
  section{padding:74px 0}
  .cform .row{grid-template-columns:1fr}
}
@media(max-width:560px){
  .foot-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  .faq-a{transition:none}
}