/* ============================================================
   CyberForge — one-page site
   Monochrome industrial-tech. Sora (display) + Space Mono (labels).
   ============================================================ */

:root{
  --ink:#131315;
  --ink-2:#191a1c;
  --ink-3:#202125;
  --paper:#F1F0EC;
  --paper-2:#E7E5DF;
  --grey:#8c8c86;
  --grey-d:#6f6f76;
  --line-d:rgba(245,244,240,.14);
  --line-l:rgba(19,19,21,.13);
  --hair-d:rgba(245,244,240,.30);

  --maxw:1240px;
  --gap:clamp(20px,4vw,40px);
  --pad:clamp(24px,6vw,80px);

  --f-display:"Sora",system-ui,sans-serif;
  --f-mono:"Space Mono",ui-monospace,monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--ink);color:var(--paper);
  font-family:var(--f-display);font-weight:400;line-height:1.5;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.mono{font-family:var(--f-mono)}
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}

/* engineering grid background */
.grid-bg{
  background-image:
    linear-gradient(var(--line-d) 1px,transparent 1px),
    linear-gradient(90deg,var(--line-d) 1px,transparent 1px);
  background-size:48px 48px;
}
.section--paper.grid-bg{
  background-image:
    linear-gradient(var(--line-l) 1px,transparent 1px),
    linear-gradient(90deg,var(--line-l) 1px,transparent 1px);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6em;
  font-family:var(--f-mono);font-size:14px;letter-spacing:.06em;
  padding:16px 26px;border:1px solid transparent;border-radius:2px;
  transition:transform .25s var(--ease),background .25s,color .25s,border-color .25s;
  text-transform:uppercase;
}
.btn span{transition:transform .25s var(--ease)}
.btn:hover span{transform:translateX(4px)}
.btn--solid{background:var(--paper);color:var(--ink)}
.btn--solid:hover{transform:translateY(-2px)}
.btn--ghost{border-color:var(--hair-d);color:var(--paper)}
.btn--ghost:hover{border-color:var(--paper);transform:translateY(-2px)}

/* ============================================================ NAV */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px var(--pad);
  transition:background .3s,backdrop-filter .3s,border-color .3s,padding .3s;
  border-bottom:1px solid transparent;
}
.nav.is-stuck{
  background:rgba(19,19,21,.72);backdrop-filter:blur(14px);
  border-bottom-color:var(--line-d);padding-top:12px;padding-bottom:12px;
}
.nav__brand{display:flex;align-items:center;gap:13px}
.nav__icon{height:32px;width:auto}
.nav__lockup{display:flex;flex-direction:column;gap:6px}
.nav__word{height:14px;width:auto;opacity:.95}
.nav__tagline{font-size:9px;letter-spacing:.22em;color:var(--grey-d);line-height:1;overflow:hidden;max-height:14px;transition:max-height .3s,opacity .3s,margin .3s}
.nav.is-stuck .nav__tagline{max-height:0;opacity:0}
.nav__links{display:flex;align-items:center;gap:34px}
.nav__links a{font-size:14px;color:var(--grey);transition:color .2s;letter-spacing:.01em}
.nav__links a:hover{color:var(--paper)}
.nav__cta{
  color:var(--paper)!important;border:1px solid var(--hair-d);
  padding:10px 18px;border-radius:2px;font-family:var(--f-mono);font-size:12.5px;
  letter-spacing:.05em;text-transform:uppercase;transition:background .2s,color .2s;
}
.nav__cta:hover{background:var(--paper);color:var(--ink)!important}
.nav__burger{display:none;flex-direction:column;gap:6px;background:none;border:0;cursor:pointer;padding:8px}
.nav__burger span{width:26px;height:2px;background:var(--paper);transition:transform .3s,opacity .3s}
.nav__burger[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}
.nav__burger[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}

/* ============================================================ HERO */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  padding:140px var(--pad) 90px;overflow:hidden;
}
.hero__ticks{position:absolute;inset:34px;pointer-events:none}
.hero__ticks i{position:absolute;width:38px;height:38px;border:2px solid var(--hair-d)}
.hero__ticks i:nth-child(1){top:0;left:0;border-right:0;border-bottom:0}
.hero__ticks i:nth-child(2){top:0;right:0;border-left:0;border-bottom:0}
.hero__ticks i:nth-child(3){bottom:0;left:0;border-right:0;border-top:0}
.hero__ticks i:nth-child(4){bottom:0;right:0;border-left:0;border-top:0}
.hero__mark{
  position:absolute;right:-4%;top:50%;transform:translateY(-50%);
  width:min(56vw,760px);opacity:.05;pointer-events:none;
}
.hero__inner{position:relative;max-width:980px}
.eyebrow{font-family:var(--f-mono);font-size:13px;letter-spacing:.26em;color:var(--grey);text-transform:uppercase}
.hero__title{
  font-weight:800;letter-spacing:-.02em;line-height:1.0;
  font-size:clamp(58px,12vw,184px);margin:24px 0 0;text-wrap:balance;
}
.hero__title span{display:block}
.hero__line--software{
  white-space:nowrap;
  letter-spacing:0;
}
.hero__title .hero__software-word{display:inline-block;white-space:nowrap}
.hero__title .hero__ft-gap{display:inline;margin-left:.075em}
.hero__accent{color:var(--grey)}
.hero__sub{
  margin-top:30px;max-width:48ch;font-size:clamp(16px,2vw,21px);
  font-weight:300;color:#cfceca;line-height:1.6;
}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.hero__scroll{
  position:absolute;left:var(--pad);bottom:30px;
  font-size:11px;letter-spacing:.28em;color:var(--grey-d);
  display:flex;gap:10px;align-items:center;
}
.hero__scroll span{animation:bob 1.8s var(--ease) infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(5px)}}

/* ============================================================ MARQUEE */
.marquee{
  border-block:1px solid var(--line-d);background:var(--ink-2);
  overflow:hidden;padding:18px 0;
}
.marquee__track{
  display:flex;align-items:center;gap:38px;width:max-content;
  animation:scroll 26s linear infinite;
}
.marquee__track span{font-weight:700;font-size:clamp(22px,3vw,34px);letter-spacing:-.01em}
.marquee__track i{color:var(--grey-d);font-style:normal;font-size:18px}
@keyframes scroll{to{transform:translateX(-33.33%)}}

/* ============================================================ SECTIONS */
.section{padding:clamp(70px,11vw,140px) 0;position:relative}
.section--paper{background:var(--paper);color:var(--ink)}
.section--ink{background:var(--ink)}
.shead{margin-bottom:clamp(40px,7vw,72px);max-width:760px}
.shead__idx{font-size:12.5px;letter-spacing:.2em;color:var(--grey);display:block;margin-bottom:20px}
.section--paper .shead__idx{color:var(--grey-d)}
.shead__title{font-size:clamp(36px,6.5vw,76px);font-weight:800;letter-spacing:-.03em;line-height:.98}
.shead__lead{margin-top:22px;font-size:clamp(16px,1.7vw,19px);font-weight:300;color:var(--grey);line-height:1.6}
.section--paper .shead__lead{color:#55554f}

/* capabilities */
.caps{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line-l);border:1px solid var(--line-l)}
.cap{background:var(--paper);padding:clamp(28px,4vw,52px);transition:background .3s}
.cap:hover{background:var(--paper-2)}
.cap__no{font-size:13px;color:var(--grey-d);letter-spacing:.1em}
.cap h3{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.02em;margin:18px 0 12px}
.cap p{color:#55554f;font-weight:300;max-width:42ch;line-height:1.6}

/* mission / goals */
.goals{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-d);border:1px solid var(--line-d)}
.goal{background:var(--ink);padding:clamp(28px,3.5vw,46px)}
.goal__no{font-size:13px;color:var(--grey);letter-spacing:.1em}
.goal h3{font-size:clamp(21px,2.4vw,28px);font-weight:700;letter-spacing:-.02em;margin:30px 0 12px}
.goal p{color:var(--grey);font-weight:300;line-height:1.6;max-width:34ch}

/* work / projects */
.projects{display:flex;flex-direction:column;gap:var(--gap)}
.empty{color:var(--grey);font-size:14px;letter-spacing:.12em}

/* featured (first) project */
.featured{display:grid;grid-template-columns:1.15fr 1fr;gap:0;border:1px solid var(--line-d);background:var(--ink-2);overflow:hidden}
a.featured{transition:border-color .3s}
a.featured:hover{border-color:var(--hair-d)}
.featured__media{
  position:relative;min-height:340px;
  background:#0e0e10 repeating-linear-gradient(45deg,#16171a 0 14px,#1b1c20 14px 28px);
  background-size:cover;background-position:center;
  display:flex;align-items:center;justify-content:center;
}
.featured__body{padding:clamp(30px,4vw,56px);display:flex;flex-direction:column;align-items:flex-start}
.featured__tag{font-size:12px;letter-spacing:.16em;color:var(--grey);text-transform:uppercase}
.featured__title{font-size:clamp(28px,3.6vw,46px);font-weight:800;letter-spacing:-.03em;margin:16px 0 18px;line-height:1}
.featured__summary{color:var(--grey);font-weight:300;line-height:1.65;font-size:clamp(15px,1.6vw,17px)}
.featured__link{margin-top:26px;font-family:var(--f-mono);font-size:13px;letter-spacing:.06em;text-transform:uppercase;display:inline-flex;gap:.6em;border-bottom:1px solid var(--hair-d);padding-bottom:4px;transition:gap .25s var(--ease)}
.featured__link:hover{gap:1em}

/* tag chips */
.tags{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.tags li{font-size:11.5px;letter-spacing:.08em;color:var(--grey);border:1px solid var(--line-d);border-radius:2px;padding:6px 11px}

/* additional project cards */
.projects__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.proj{display:block;transition:transform .3s var(--ease)}
a.proj:hover{transform:translateY(-5px)}
.proj__media{
  position:relative;aspect-ratio:16/10;
  background:#0e0e10 repeating-linear-gradient(45deg,#16171a 0 14px,#1b1c20 14px 28px);
  background-size:cover;background-position:center;
  border:1px solid var(--line-d);display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.proj__slot{color:var(--grey-d);font-size:11px;letter-spacing:.18em;text-transform:uppercase}
.proj__meta{display:flex;align-items:center;gap:12px;padding-top:16px;flex-wrap:wrap}
.proj__meta .mono{font-size:11px;color:var(--grey-d);letter-spacing:.14em;flex-basis:100%}
.proj__meta h3{font-size:clamp(18px,2vw,22px);font-weight:700;letter-spacing:-.02em;flex:1 1 auto}
.proj__arrow{font-size:20px;color:var(--grey-d);transition:transform .3s var(--ease),color .3s}
a.proj:hover .proj__arrow{transform:translateX(6px);color:var(--paper)}
.proj--more{display:flex;align-items:center;justify-content:center;min-height:120px;border:1px dashed var(--line-d);border-radius:2px}
.proj--more .mono{font-size:12px;letter-spacing:.16em;color:var(--grey-d)}

/* about */
.about{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(32px,6vw,80px);align-items:start}
.about__head .shead__idx{margin-bottom:18px}
.about__head .shead__title{font-size:clamp(34px,5vw,64px);font-weight:800;letter-spacing:-.03em;line-height:.98}
.about__lead{font-size:clamp(20px,2.4vw,28px);font-weight:300;letter-spacing:-.01em;line-height:1.4;color:var(--ink)}
.about__copy{margin-top:22px;font-size:clamp(15px,1.6vw,17px);font-weight:300;line-height:1.7;color:#55554f;max-width:54ch}
.facts{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line-l);border:1px solid var(--line-l);margin-top:40px}
.facts li{background:var(--paper);padding:22px 24px;display:flex;flex-direction:column;gap:8px}
.facts__k{font-size:11px;letter-spacing:.16em;color:var(--grey-d)}
.facts__v{font-size:clamp(17px,1.8vw,20px);font-weight:600;letter-spacing:-.01em}

/* cta */
.cta{position:relative;overflow:hidden;text-align:center}
.cta__mark{position:absolute;left:50%;top:46%;transform:translate(-50%,-50%);width:min(70vw,720px);opacity:.05;pointer-events:none}
.cta__inner{position:relative;display:flex;flex-direction:column;align-items:center}
.cta__title{font-size:clamp(48px,11vw,150px);font-weight:800;letter-spacing:-.04em;line-height:1.0;margin:22px 0}
.cta__sub{max-width:46ch;color:var(--grey);font-weight:300;font-size:clamp(15px,1.7vw,18px);line-height:1.6;margin-bottom:30px}
.cta__mail{font-family:var(--f-mono);font-size:clamp(15px,2vw,20px);color:var(--grey);border-bottom:1px solid var(--line-d);padding-bottom:4px;transition:color .2s,border-color .2s;margin-bottom:36px}
.cta__mail:hover{color:var(--paper);border-color:var(--paper)}

/* ============================================================ FOOTER */
.footer{background:#0e0e10;padding:64px 0 40px;border-top:1px solid var(--line-d)}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:var(--gap);align-items:start}
.footer__brand{display:flex;flex-direction:column;align-items:center;text-align:center}
.footer__logo{height:60px;width:auto;margin:0 auto 16px}
.footer__brand .mono{font-size:11px;letter-spacing:.2em;color:var(--grey-d)}
.footer__nav,.footer__social{display:flex;flex-direction:column;gap:12px}
.footer__nav a,.footer__social a{color:var(--grey);font-size:14px;transition:color .2s}
.footer__nav a:hover,.footer__social a:hover{color:var(--paper)}
.footer__base{display:flex;justify-content:space-between;gap:20px;margin-top:48px;padding-top:24px;border-top:1px solid var(--line-d);font-size:11px;letter-spacing:.14em;color:var(--grey-d);flex-wrap:wrap}

/* ============================================================ REVEAL */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease);transition-delay:calc(var(--d,0) * 70ms)}
.reveal.is-in{opacity:1;transform:none}

/* ============================================================ RESPONSIVE */
@media(max-width:860px){
  .nav__links{
    position:fixed;inset:0 0 auto 0;top:0;flex-direction:column;align-items:flex-start;gap:8px;
    background:rgba(14,14,16,.97);backdrop-filter:blur(14px);
    padding:96px var(--pad) 32px;transform:translateY(-100%);transition:transform .4s var(--ease);
    border-bottom:1px solid var(--line-d);
  }
  .nav__links.is-open{transform:translateY(0)}
  .nav__links a{font-size:20px;color:var(--paper)}
  .nav__cta{margin-top:12px}
  .nav__burger{display:flex}
  .about{grid-template-columns:1fr;gap:36px}
  .caps{grid-template-columns:1fr}
  .goals{grid-template-columns:1fr}
  .projects__grid{grid-template-columns:repeat(2,1fr)}
  .featured{grid-template-columns:1fr}
  .featured__media{min-height:240px;aspect-ratio:16/10}
  .footer__grid{grid-template-columns:1fr 1fr}
  .footer__brand{grid-column:1 / -1}
}
@media(max-width:520px){
  .projects__grid{grid-template-columns:1fr}
  .facts{grid-template-columns:1fr}
}

@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .marquee__track,.hero__scroll span{animation:none}
  html{scroll-behavior:auto}
}