:root{--black:#0b0d10;--panel:#11161b;--graphite:#2f343b;--gold:#c79a4e;--platinum:#e6e7e9;--white:#fff;--muted:#aeb2b7;--line:rgba(230,231,233,.15)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--black);color:var(--white);font:16px/1.6 "IBM Plex Sans",Arial,sans-serif}a{color:inherit;text-decoration:none}
.site-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;min-height:92px;padding:0 clamp(24px,5vw,80px);background:rgba(11,13,16,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.master-logo{display:block;flex:0 0 auto;background-image:url("assets/nexus-horizontal-dark.png");background-repeat:no-repeat;background-size:contain;background-position:left center}.master-logo--header,.master-logo--footer{width:250px;height:82px}
nav{display:flex;align-items:center;gap:30px;font-family:"Poppins",sans-serif;font-size:.86rem}nav a{color:#cbcdd0}nav a:hover{color:#fff}.nav-cta{padding:10px 16px;border:1px solid rgba(199,154,78,.72)}.menu{display:none;color:#fff;background:none;border:1px solid var(--line);padding:8px 12px;font-family:"IBM Plex Mono",monospace}
.hero{position:relative;min-height:calc(100vh - 92px);display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.55fr);align-items:center;gap:3vw;padding:8vw clamp(24px,8vw,130px) 5vw;overflow:hidden;background:radial-gradient(circle at 82% 24%,rgba(199,154,78,.12),transparent 28%),linear-gradient(115deg,#0b0d10 45%,#12171c)}.hero-copy{position:relative;z-index:2}
.master-nexus-mark{width:min(32vw,440px);height:min(24vw,250px);justify-self:end;background:url("assets/nexus-mark-dark.png") center/contain no-repeat;filter:drop-shadow(0 25px 35px rgba(0,0,0,.45))}
.eyebrow,.kicker{color:var(--gold);font:600 .74rem/1.4 "IBM Plex Mono",monospace;letter-spacing:.18em}.hero h1,h2{font-family:"Poppins",sans-serif;letter-spacing:-.045em}.hero h1{max-width:900px;margin:18px 0 22px;font-size:clamp(3rem,6.1vw,6.8rem);font-weight:600;line-height:.94}.lead{max-width:800px;color:#c7c9cc;font-size:clamp(1.05rem,1.6vw,1.35rem);font-weight:300}
.actions{display:flex;gap:14px;margin:24px 0 60px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;min-height:49px;padding:0 22px;border:1px solid transparent;font-family:"Poppins",sans-serif;font-weight:600;font-size:.88rem;letter-spacing:.03em;cursor:pointer}.primary{background:var(--gold);color:var(--black)}.secondary{border-color:var(--line)}
.signal-grid{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);max-width:1100px}.signal-grid div{padding:23px 28px 0 0}.signal-grid div+div{padding-left:28px;border-left:1px solid var(--line)}.signal-grid span,.cards article>span,.process>li>span{color:var(--gold);font:600 .7rem/1 "IBM Plex Mono",monospace}.signal-grid strong{display:block;margin:10px 0 4px;font-family:"Poppins",sans-serif}.signal-grid p{margin:0;color:var(--muted);font-size:.9rem}
.band{display:grid;grid-template-columns:1fr 1fr;gap:7vw;padding:85px clamp(24px,8vw,130px);background:var(--white);color:#17191e}h2{font-size:clamp(2.25rem,4.3vw,4.8rem);font-weight:600;line-height:1.02;margin:12px 0}.band>p{font-size:1.15rem;color:#4d4e51}.section{padding:100px clamp(24px,8vw,130px)}.section-head{display:grid;grid-template-columns:1.4fr .6fr;gap:7vw;margin-bottom:55px}.section-head>p{color:var(--muted);align-self:end}
.cards{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.cards article{min-height:275px;padding:35px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.cards h3{font:600 1.45rem/1.2 "Poppins",sans-serif;margin:25px 0 12px}.cards p{color:var(--muted);max-width:530px}.cards a{display:inline-block;margin-top:20px;color:var(--gold);font-family:"Poppins",sans-serif;font-weight:600;font-size:.86rem}
.section-action{margin-top:32px}.proof-placeholder{display:flex;gap:18px;margin-top:22px;padding:18px 22px;border:1px solid rgba(199,154,78,.42);color:var(--muted)}.proof-placeholder strong{color:var(--white);white-space:nowrap}.dark{background:var(--panel)}.process{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}.process li{display:grid;grid-template-columns:65px 1fr;gap:20px;padding:26px 0;border-bottom:1px solid var(--line)}.process h3{margin:0 0 5px;font:600 1.12rem/1.3 "Poppins",sans-serif}.process p{margin:0;color:var(--muted)}
.about{display:grid;grid-template-columns:1fr 1fr;gap:8vw;background:var(--white);color:#17191e}.about-copy{font-size:1.1rem;color:#494a4e}.proof-placeholder{display:block;color:#6b6963}.proof-placeholder strong,.proof-placeholder span{display:block;color:#17191e}.proof-placeholder span{margin-top:6px;color:#6b6963}
.contact{text-align:center;padding:120px 24px;background:radial-gradient(circle at 50% 0,rgba(199,154,78,.14),transparent 40%)}.contact h2{max-width:880px;margin:14px auto}.contact>p:not(.kicker){max-width:680px;margin:20px auto;color:var(--muted)}.contact-actions{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:32px;flex-wrap:wrap}.contact-actions span{color:var(--muted);font-size:.86rem}footer{display:flex;align-items:center;justify-content:space-between;padding:35px clamp(24px,5vw,80px);border-top:1px solid var(--line);color:var(--muted);font:400 .78rem/1.5 "IBM Plex Mono",monospace}.cap-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.5fr);align-items:center;gap:5vw;padding:110px clamp(24px,8vw,130px);background:radial-gradient(circle at 80% 20%,rgba(199,154,78,.13),transparent 32%)}.cap-hero h1{max-width:900px;margin:16px 0;font:600 clamp(3rem,6vw,6.4rem)/.95 "Poppins",sans-serif;letter-spacing:-.05em}.cap-hero>div>p:last-child{max-width:760px;color:var(--muted);font-size:1.15rem}.capability-groups{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);padding-top:1px;padding-bottom:1px}.capability-groups article{background:var(--black);padding:55px}.capability-groups h2{font-size:clamp(2rem,3.5vw,3.7rem)}.capability-groups ul{padding-left:20px;color:var(--muted)}.capability-groups li{margin:10px 0}.fit{display:grid;grid-template-columns:.75fr 1.25fr;gap:7vw;background:var(--white);color:#17191e}.fit-grid{display:grid}.fit-grid>div{padding:25px 0;border-bottom:1px solid #d7d8da}.fit-grid h3{font:600 1.2rem/1.3 "Poppins",sans-serif}.fit-grid p{color:#55595f}
@media(max-width:900px){.hero{grid-template-columns:1fr}.master-nexus-mark{position:absolute;right:-190px;top:50px;opacity:.2;width:440px;height:240px}.hero-copy{max-width:820px}.cap-hero,.fit{grid-template-columns:1fr}.cap-hero .master-nexus-mark{display:none}}
@media(max-width:760px){.site-header{min-height:76px}.master-logo--header{width:190px;height:68px}.menu{display:block}nav{display:none;position:absolute;top:76px;left:0;right:0;flex-direction:column;align-items:stretch;padding:22px 24px;background:#0d0f12;border-bottom:1px solid var(--line)}nav.open{display:flex}.hero{min-height:auto;padding-top:100px}.hero h1{font-size:clamp(2.8rem,13vw,5.2rem)}.signal-grid,.band,.section-head,.about{grid-template-columns:1fr}.signal-grid div+div{padding-left:0;border-left:0}.signal-grid div{border-bottom:1px solid var(--line);padding:20px 0}.band,.section,.about,.cap-hero{padding-top:72px;padding-bottom:72px}.cards,.capability-groups{grid-template-columns:1fr}.capability-groups article{padding:36px 24px}.proof-placeholder{display:block}.proof-placeholder strong,.proof-placeholder span{display:block;white-space:normal}.proof-placeholder span{margin-top:5px}footer{align-items:flex-start;gap:28px;flex-direction:column}}