/*
Theme Name: StableCore Logic Systems
Description: Systems Engineering & Infrastructure — Slate grey, amber & white industrial precision
Author: StableCore Logic Systems
Version: 1.0
*/
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&family=IBM+Plex+Serif:wght@400;500&display=swap');
:root{
  --sl-slate:#2E3A47;--sl-slate-dk:#1E2A35;--sl-slate-lt:#EEF2F5;
  --sl-amber:#E07B39;--sl-amber-lt:#FDF0E8;--sl-amber-dk:#C06020;
  --sl-white:#FFFFFF;--sl-off:#F8F9FA;--sl-mid:#6C7E8E;--sl-border:#D0DAE4;
  --fh:'IBM Plex Serif',serif;--fb:'IBM Plex Sans',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--fb);color:var(--sl-slate);background:var(--sl-off);font-size:16px;line-height:1.75}
a{color:var(--sl-amber);text-decoration:none}a:hover{color:var(--sl-amber-dk)}
h1,h2,h3,h4{font-family:var(--fh);font-weight:500;line-height:1.15}
h1{font-size:clamp(2.4rem,5vw,4rem)}h2{font-size:clamp(1.8rem,3.5vw,2.8rem)}h3{font-size:1.4rem}
.sl-wrap{max-width:1200px;margin:0 auto;padding:0 28px}
.sl-sec{padding:100px 0}
.sl-eye{font-family:var(--fb);font-size:.68rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--sl-amber);display:block;margin-bottom:12px}
.sl-btn{display:inline-block;font-family:var(--fb);font-weight:600;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;padding:14px 36px;transition:all .2s}
.sl-btn-sl{background:var(--sl-slate);color:#fff}.sl-btn-sl:hover{background:var(--sl-slate-dk);color:#fff}
.sl-btn-am{background:var(--sl-amber);color:#fff}.sl-btn-am:hover{background:var(--sl-amber-dk);color:#fff}
.sl-btn-out{border:2px solid var(--sl-slate);color:var(--sl-slate)}.sl-btn-out:hover{background:var(--sl-slate);color:#fff}
.sl-hdr{position:fixed;top:0;left:0;right:0;z-index:999;background:var(--sl-slate-dk);border-bottom:3px solid var(--sl-amber)}
.sl-hdr-inner{display:flex;align-items:center;justify-content:space-between;height:74px}
.sl-logo{font-family:var(--fh);font-size:1.2rem;color:#fff;font-weight:500;letter-spacing:.01em}
.sl-logo span{color:var(--sl-amber)}
.sl-nav{display:flex;gap:36px;align-items:center}
.sl-nav a{font-family:var(--fb);font-size:.8rem;font-weight:500;color:rgba(255,255,255,.6);letter-spacing:.04em;transition:color .2s}
.sl-nav a:hover{color:var(--sl-amber)}
.sl-toggle{display:none;background:none;border:none;cursor:pointer}
.sl-toggle span{display:block;width:22px;height:2px;background:#fff;margin:5px 0}
/* HERO */
.sl-hero{background:var(--sl-slate-dk);min-height:100vh;display:flex;align-items:center;padding-top:74px;position:relative;overflow:hidden}
.sl-hero::before{content:'';position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent,transparent 59px,rgba(255,255,255,.02) 59px,rgba(255,255,255,.02) 60px),repeating-linear-gradient(0deg,transparent,transparent 59px,rgba(255,255,255,.02) 59px,rgba(255,255,255,.02) 60px)}
.sl-hero-accent{position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(var(--sl-amber),var(--sl-amber-dk))}
.sl-hero-inner{display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:center;position:relative;z-index:1;padding:80px 0}
.sl-hero h1{color:#fff;margin-bottom:28px}
.sl-hero h1 span{color:var(--sl-amber)}
.sl-hero-sub{color:rgba(255,255,255,.55);font-size:1.05rem;margin-bottom:44px;max-width:520px;font-weight:300}
.sl-hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.sl-hero-btns .sl-btn-out{border-color:rgba(255,255,255,.3);color:#fff}
.sl-hero-btns .sl-btn-out:hover{background:rgba(255,255,255,.07);color:#fff}
.sl-hero-specs{display:flex;flex-direction:column;gap:1px}
.sl-spec{background:rgba(255,255,255,.04);padding:20px 24px;display:flex;justify-content:space-between;align-items:center;border-left:2px solid var(--sl-amber)}
.sl-spec-label{font-size:.72rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.4)}
.sl-spec-val{font-family:var(--fh);font-size:1.4rem;color:var(--sl-amber)}
/* AMBER BAND */
.sl-band{background:var(--sl-amber);padding:28px 0}
.sl-band-inner{display:grid;grid-template-columns:repeat(4,1fr)}
.sl-bstat{text-align:center;border-right:1px solid rgba(255,255,255,.2);padding:4px}
.sl-bstat:last-child{border-right:none}
.sl-bstat strong{display:block;font-family:var(--fh);font-size:2.2rem;color:#fff}
.sl-bstat span{font-size:.68rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.7)}
/* CAPABILITIES */
.sl-cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--sl-border)}
.sl-cap{background:var(--sl-white);padding:44px 36px;border-bottom:3px solid transparent;transition:border-color .25s}
.sl-cap:hover{border-color:var(--sl-amber)}
.sl-cap-icon{width:48px;height:48px;background:var(--sl-amber-lt);display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:20px}
.sl-cap h3{color:var(--sl-slate);margin-bottom:12px;font-size:1.2rem}
.sl-cap p{font-size:.9rem;color:var(--sl-mid);line-height:1.8}
/* ABOUT */
.sl-about{background:var(--sl-slate-dk)}
.sl-about-inner{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.sl-about h2{color:#fff;margin-bottom:24px}
.sl-about p{color:rgba(255,255,255,.5);margin-bottom:16px;font-weight:300}
.sl-about-list{list-style:none;margin:20px 0 36px}
.sl-about-list li{display:flex;gap:14px;color:rgba(255,255,255,.6);font-size:.95rem;margin-bottom:12px;align-items:flex-start}
.sl-about-list li::before{content:'◆';color:var(--sl-amber);font-size:.5rem;margin-top:7px}
.sl-about-nums{display:grid;grid-template-columns:1fr 1fr;gap:2px}
.sl-about-num{background:rgba(255,255,255,.04);padding:32px;text-align:center}
.sl-about-num strong{display:block;font-family:var(--fh);font-size:2.6rem;color:var(--sl-amber)}
.sl-about-num span{font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;color:rgba(255,255,255,.3)}
/* PROJECTS */
.sl-proj-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.sl-proj{background:var(--sl-white);padding:36px;border-left:4px solid var(--sl-amber)}
.sl-proj-sector{font-size:.68rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--sl-amber)}
.sl-proj h3{color:var(--sl-slate);margin:10px 0 12px;font-size:1.15rem}
.sl-proj p{font-size:.875rem;color:var(--sl-mid);margin-bottom:16px}
.sl-proj-tags{display:flex;flex-wrap:wrap;gap:6px}
.sl-proj-tags span{font-size:.7rem;background:var(--sl-slate-lt);padding:3px 10px;color:var(--sl-slate);font-weight:600}
/* CTA */
.sl-cta{background:var(--sl-amber);padding:80px 0}
.sl-cta-inner{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center}
.sl-cta h2{color:#fff;margin-bottom:8px}
.sl-cta p{color:rgba(255,255,255,.8)}
/* JOBS */
.sl-jobs{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.sl-job{border:1px solid var(--sl-border);padding:28px;background:var(--sl-white)}
.sl-job h3{color:var(--sl-slate);margin-bottom:12px}
.sl-job-meta{display:flex;gap:10px;margin-bottom:20px}
.sl-job-meta span{font-size:.72rem;background:var(--sl-amber-lt);padding:3px 10px;color:var(--sl-amber);font-weight:600}
/* CONTACT */
.sl-contact-inner{display:grid;grid-template-columns:1fr 1.4fr;gap:80px}
.sl-cinfo h2{margin-bottom:20px}
.sl-cdetails{list-style:none;margin:24px 0}
.sl-cdetails li{margin-bottom:12px;font-size:.95rem;color:var(--sl-mid)}
.sl-form input,.sl-form textarea{width:100%;border:1px solid var(--sl-border);padding:13px 16px;font-family:var(--fb);font-size:.95rem;background:var(--sl-white);color:var(--sl-slate);outline:none;margin-bottom:16px;display:block;transition:border-color .2s}
.sl-form input:focus,.sl-form textarea:focus{border-color:var(--sl-amber)}
.sl-resp{margin-top:10px;font-size:.875rem;font-weight:600}
.sl-resp.ok{color:#16a34a}.sl-resp.err{color:#dc2626}
/* PAGE HERO */
.sl-phero{background:var(--sl-slate-dk);padding:140px 0 72px;border-bottom:3px solid var(--sl-amber)}
.sl-phero h1{color:#fff;margin-bottom:16px}
.sl-phero p{color:rgba(255,255,255,.5);max-width:600px;font-size:1.05rem;font-weight:300}
.sl-two{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.sl-vlist{list-style:none}
.sl-vlist li{border-left:3px solid var(--sl-amber);padding:8px 0 8px 16px;margin-bottom:14px;font-size:.95rem;color:var(--sl-mid)}
.sl-team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px}
.sl-team-card{text-align:center}
.sl-team-avatar{width:100%;aspect-ratio:1;background:var(--sl-amber-lt);margin-bottom:16px}
.sl-team-card h3{font-size:1rem;margin-bottom:4px}
.sl-team-card span{font-size:.75rem;color:var(--sl-mid)}
.sl-pc{max-width:800px}
.sl-pc p{color:var(--sl-mid);margin-bottom:16px}
.sl-footer{background:var(--sl-slate-dk);padding:72px 0 0}
.sl-footer-inner{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.06)}
.sl-footer-brand p{color:rgba(255,255,255,.28);font-size:.875rem;margin-top:12px}
.sl-footer-col h4{font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:var(--sl-amber);margin-bottom:20px;font-weight:600}
.sl-footer-col ul{list-style:none}
.sl-footer-col ul li a{color:rgba(255,255,255,.28);font-size:.875rem;transition:color .2s;display:block;margin-bottom:10px}
.sl-footer-col ul li a:hover{color:var(--sl-amber)}
.sl-footer-bottom{padding:20px 0;text-align:center}
.sl-footer-bottom p{color:rgba(255,255,255,.16);font-size:.78rem}
.sl-a{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.sl-a.on{opacity:1;transform:none}
@media(max-width:960px){
  .sl-hero-inner,.sl-about-inner,.sl-contact-inner,.sl-two,.sl-cta-inner{grid-template-columns:1fr;gap:40px}
  .sl-cap-grid{grid-template-columns:1fr 1fr}.sl-band-inner{grid-template-columns:repeat(2,1fr)}
  .sl-team-grid,.sl-proj-grid{grid-template-columns:1fr 1fr}.sl-footer-inner{grid-template-columns:1fr 1fr}
  .sl-nav{display:none}.sl-nav.open{display:flex;flex-direction:column;position:absolute;top:74px;left:0;right:0;background:var(--sl-slate-dk);padding:20px 28px;gap:16px}
  .sl-toggle{display:block}
}
@media(max-width:600px){.sl-cap-grid,.sl-team-grid,.sl-proj-grid,.sl-jobs{grid-template-columns:1fr}}