/* ============================================================
   THE MACHINE — v1
   near-black + acid chartreuse · Archivo (display) / Space Grotesk
   (text) / JetBrains Mono (data)
   ============================================================ */

:root{
  --bg:#0a0b0d;
  --bg-soft:#101216;
  --ink:#e8eaed;
  --ink-dim:#8a8f98;
  --ink-faint:#4a4f58;
  --acid:#c6ff2e;
  --acid-dim:rgba(198,255,46,.14);
  --line:rgba(232,234,237,.09);
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --grot:'Space Grotesk',system-ui,sans-serif;
  --disp:'Archivo',system-ui,sans-serif;
  --pad:clamp(20px,5vw,84px);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:auto}
html,body{background:var(--bg);overscroll-behavior:none}
body{
  color:var(--ink);
  font-family:var(--grot);
  font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--acid);color:#0a0b0d}
b{font-weight:600}
.acid{color:var(--acid)}

/* ---------- canvas + grain ---------- */
#gl{position:fixed;inset:0;width:100%;height:100%;display:block;z-index:0}
.grain{
  position:fixed;inset:-50%;z-index:30;pointer-events:none;opacity:.5;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.06 0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 900ms steps(6) infinite;
}
@keyframes grain{
  0%{transform:translate(0,0)}20%{transform:translate(-3%,2%)}
  40%{transform:translate(2%,-3%)}60%{transform:translate(-2%,-2%)}
  80%{transform:translate(3%,3%)}100%{transform:translate(0,0)}
}

/* WebGL fallback backdrop (hidden unless .no-webgl) */
#webgl-fallback{display:none}
.no-webgl #gl{display:none}
.no-webgl #webgl-fallback{
  display:block;position:fixed;inset:0;z-index:0;
  background:
    radial-gradient(1200px 700px at 70% 20%, rgba(198,255,46,.07), transparent 60%),
    repeating-linear-gradient(0deg, transparent 0 79px, var(--line) 79px 80px),
    repeating-linear-gradient(90deg, transparent 0 79px, var(--line) 79px 80px),
    var(--bg);
}

/* ---------- HUD ---------- */
.hud{position:fixed;z-index:40;font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--ink-dim)}
.hud-top{
  top:0;left:0;right:0;display:flex;align-items:center;gap:2em;
  padding:18px var(--pad);
  justify-content:space-between;
}
.hud-top::before{
  content:"";position:absolute;inset:0 0 -34px 0;z-index:-1;pointer-events:none;
  background:linear-gradient(to bottom,rgba(10,11,13,.94) 30%,rgba(10,11,13,0));
}
.hud-id{display:flex;flex-direction:column;gap:2px}
.hud-name{color:var(--ink);font-weight:700;letter-spacing:.22em}
.hud-handle{color:var(--ink-faint)}
.hud-clock{color:var(--ink)}
.hud-clock span{color:var(--acid)}
.hud-status{display:flex;align-items:center;gap:.7em;text-transform:uppercase}
.dot{width:6px;height:6px;border-radius:50%;background:var(--acid);box-shadow:0 0 8px var(--acid);animation:pulse 2.2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

.hud-rail{
  right:calc(var(--pad) * .45);top:50%;transform:translateY(-50%);
  display:flex;flex-direction:column;gap:14px;text-align:right;
}
.hud-rail a{color:var(--ink-faint);text-decoration:none;display:flex;gap:.8em;justify-content:flex-end;align-items:baseline;transition:color .3s}
.hud-rail a em{font-style:normal;font-size:10px;opacity:0;transform:translateX(6px);transition:.3s}
.hud-rail a:hover em,.hud-rail a.active em{opacity:1;transform:none}
.hud-rail a.active{color:var(--acid)}
.hud-rail a:hover{color:var(--ink)}

.hud-bottom{
  left:0;right:0;bottom:0;display:flex;align-items:center;gap:1.4em;
  padding:16px var(--pad);
}
.hud-bottom::before{
  content:"";position:absolute;inset:-30px 0 0 0;z-index:-1;pointer-events:none;
  background:linear-gradient(to top,rgba(10,11,13,.9) 30%,rgba(10,11,13,0));
}
.hud-scroll{animation:pulse 2.4s ease-in-out infinite}
.hud-progress{flex:1;height:1px;background:var(--line);position:relative}
.hud-progress i{position:absolute;left:0;top:-0.5px;height:2px;width:0;background:var(--acid);box-shadow:0 0 6px var(--acid)}
.hud-chapter{color:var(--ink)}

/* ---------- scroll machinery ---------- */
#scroll-space{width:1px}
#content{position:fixed;top:0;left:0;width:100%;z-index:10;will-change:transform}
/* native-scroll mode (touch / reduced-motion / no-webgl fallback JS) */
body.native-scroll #content{position:relative}
body.native-scroll #scroll-space{display:none}

/* ---------- layout ---------- */
.chapter{position:relative;padding:22vh var(--pad);min-height:100vh;display:flex;align-items:center}
.inner{width:min(1180px,100%);margin-inline:auto}
.chapter-hero{min-height:100vh;padding-top:13vh;padding-bottom:9vh}
.chapter-hero .inner{margin-left:0}

/* reveals */
[data-reveal]{opacity:0;transform:translateY(34px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
[data-reveal].in{opacity:1;transform:none}

/* ---------- type ---------- */
.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.3em;color:var(--acid);margin-bottom:2.4em}
.display{
  font-family:var(--disp);
  font-variation-settings:"wdth" 118;
  font-weight:800;
  font-size:clamp(44px,8.1vw,116px);
  line-height:.94;letter-spacing:-.01em;
  text-transform:uppercase;
  text-shadow:0 2px 40px rgba(10,11,13,.75);
}
.display .l{display:block}
/* staggered line reveal on the hero display */
[data-reveal] .l{opacity:0;transform:translateY(.55em);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
[data-reveal].in .l{opacity:1;transform:none}
[data-reveal].in .l:nth-child(2){transition-delay:.09s}
[data-reveal].in .l:nth-child(3){transition-delay:.18s}
.lede{max-width:52ch;margin-top:2em;color:var(--ink-dim);font-size:clamp(15px,1.25vw,18px)}
.lede b{color:var(--ink)}
.h2{
  font-family:var(--disp);font-variation-settings:"wdth" 118;font-weight:800;
  font-size:clamp(34px,5vw,64px);text-transform:uppercase;line-height:1;
  margin:0.4em 0 1.2em;
}
.h3{
  font-family:var(--disp);font-variation-settings:"wdth" 118;font-weight:800;
  font-size:clamp(28px,3.6vw,48px);text-transform:uppercase;line-height:1;
}
.section-tag{
  font-family:var(--mono);font-size:11px;letter-spacing:.26em;color:var(--ink-dim);
  display:flex;align-items:center;gap:1.2em;margin-bottom:3.5em;text-transform:uppercase;
}
.section-tag span{color:var(--acid);border:1px solid var(--acid-dim);background:var(--acid-dim);padding:.35em .7em}
.section-tag::after{content:"";flex:1;height:1px;background:var(--line)}

/* ---------- buttons ---------- */
.cta-row{display:flex;gap:14px;margin-top:3em;flex-wrap:wrap}
.btn{
  font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-decoration:none;
  color:var(--ink);border:1px solid rgba(232,234,237,.25);padding:1.1em 1.9em;
  position:relative;display:inline-block;background:rgba(10,11,13,.55);
  backdrop-filter:blur(6px);
  transition:border-color .3s,color .3s,background .3s;
  will-change:transform;
}
.btn:hover{border-color:var(--ink);}
.btn-acid{color:#0a0b0d;background:var(--acid);border-color:var(--acid);font-weight:700}
.btn-acid:hover{background:#d9ff6a;border-color:#d9ff6a}
.btn-big{font-size:clamp(12px,1.6vw,17px);padding:1.3em 2.2em}

/* ---------- metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.metric{
  grid-column:span 1;
  background:rgba(10,11,13,.72);backdrop-filter:blur(4px);
  padding:clamp(18px,2.2vw,32px);
  min-height:clamp(140px,15vw,190px);
  display:flex;flex-direction:column;justify-content:space-between;gap:1.3em;
  position:relative;overflow:hidden;
}
.metric::before{content:"";position:absolute;top:10px;right:12px;width:7px;height:7px;border-top:1px solid var(--acid);border-right:1px solid var(--acid);opacity:.7}
.metric-num{
  font-family:var(--mono);font-weight:200;color:var(--ink);
  font-size:clamp(32px,3.4vw,54px);line-height:1;letter-spacing:-.04em;
  display:flex;align-items:baseline;flex-wrap:wrap;
  text-shadow:0 0 26px rgba(198,255,46,.18);
}
.metric-arrow{color:var(--acid);font-size:.55em;margin:0 .25em}
.metric-label{font-family:var(--mono);font-size:10px;letter-spacing:.22em;color:var(--ink-dim)}

/* ---------- pillars ---------- */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:2.75em}
.pillar{
  background:rgba(10,11,13,.72);backdrop-filter:blur(4px);
  padding:clamp(24px,2.6vw,40px);min-height:300px;
  display:flex;flex-direction:column;gap:.9em;position:relative;
  transition:background .4s;
}
.pillar::before{content:"";position:absolute;top:10px;right:12px;width:7px;height:7px;border-top:1px solid var(--acid);border-right:1px solid var(--acid);opacity:.7}
.pillar:hover{background:rgba(198,255,46,.05)}
.pillar-idx{font-family:var(--mono);font-size:11px;color:var(--acid);letter-spacing:.2em;margin-bottom:1.5em}
.pillar h3{font-family:var(--disp);font-variation-settings:"wdth" 118;font-weight:800;font-size:clamp(19px,1.7vw,25px);letter-spacing:.01em}
.pillar-sub{font-family:var(--mono);font-size:11px;color:var(--ink-faint);letter-spacing:.12em}
.pillar p:last-child{color:var(--ink-dim);font-size:15px}

/* ---------- cases ---------- */
.case{
  border:1px solid var(--line);
  background:rgba(10,11,13,.78);backdrop-filter:blur(6px);
  padding:clamp(24px,3.4vw,56px);
  margin-bottom:clamp(48px,9vh,110px);
  width:min(940px,100%);
}
.case:nth-of-type(2){margin-left:auto}
.case:nth-of-type(3){margin-left:auto;margin-right:auto}
.case-head{margin-bottom:1.6em}
.case-meta{
  display:flex;gap:1.6em;font-family:var(--mono);font-size:10px;letter-spacing:.24em;
  color:var(--ink-dim);margin-bottom:1.8em;text-transform:uppercase;flex-wrap:wrap;
}
.case-idx{color:var(--acid)}
.case-headline{margin-top:.7em;font-size:clamp(16px,1.6vw,21px);color:var(--ink);font-weight:500;font-style:italic}
.case-body{color:var(--ink-dim);max-width:64ch}
.case-body b{color:var(--ink)}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin:1.8em 0}
.badge{
  font-family:var(--mono);font-size:10px;letter-spacing:.16em;
  border:1px solid var(--line);color:var(--ink-dim);padding:.55em 1em;
}
.badge-acid{border-color:rgba(198,255,46,.35);color:var(--acid);background:var(--acid-dim)}

/* pipeline diagram */
.pipeline{border:1px solid var(--line);padding:clamp(16px,2vw,28px);margin:2.2em 0;background:rgba(255,255,255,.015)}
.pipeline-title{font-family:var(--mono);font-size:10px;letter-spacing:.24em;color:var(--ink-dim);margin-bottom:1.6em;display:flex;justify-content:space-between;gap:1em;flex-wrap:wrap}
.live{color:var(--acid);display:inline-flex;align-items:center;gap:.6em}
.live i{width:5px;height:5px;border-radius:50%;background:var(--acid);box-shadow:0 0 8px var(--acid);animation:pulse 1.6s infinite}
.pipeline-track{display:flex;align-items:center;gap:0;flex-wrap:wrap;row-gap:14px}
.node{
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--ink);
  border:1px solid rgba(198,255,46,.3);padding:.7em 1em;position:relative;
  background:rgba(198,255,46,.04);white-space:nowrap;
}
.node:not(:last-child){margin-right:26px}
.node:not(:last-child)::after{
  content:"";position:absolute;left:100%;top:50%;width:26px;height:1px;
  background:linear-gradient(90deg,var(--acid),rgba(198,255,46,.15));
}
.pipeline-stats{
  display:flex;gap:2.4em;margin-top:1.8em;font-family:var(--mono);font-size:10px;
  letter-spacing:.18em;color:var(--acid);flex-wrap:wrap;
}

/* projects grid */
.projects{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin:2.2em 0}
.project{background:var(--bg);padding:clamp(18px,1.8vw,28px);display:flex;flex-direction:column;gap:.8em}
.project h4{font-family:var(--mono);font-size:12px;letter-spacing:.18em;color:var(--ink)}
.project p{font-size:13.5px;color:var(--ink-dim)}
.project-tech{font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;color:var(--acid);margin-top:auto}

/* timeline */
.timeline{list-style:none;margin:2.2em 0;border-left:1px solid var(--line)}
.timeline li{display:flex;gap:1.6em;padding:1em 0 1em 1.8em;position:relative}
.timeline li::before{
  content:"";position:absolute;left:-3px;top:1.55em;width:5px;height:5px;
  background:var(--acid);transform:rotate(45deg);
}
.t-year{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--acid);min-width:5.4em;padding-top:.35em}
.timeline div{color:var(--ink-dim);font-size:14.5px;max-width:60ch}
.timeline b{color:var(--ink);font-weight:600}
.case-foot{
  font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--ink-dim);
  border-top:1px solid var(--line);padding-top:1.6em;margin-top:1.6em;
}

/* ---------- stack ---------- */
.stack-list{border-top:1px solid var(--line)}
.stack-row{
  display:grid;grid-template-columns:220px 1fr;gap:2em;align-items:baseline;
  border-bottom:1px solid var(--line);padding:1.6em 0;
  background:linear-gradient(90deg,transparent,transparent);
  transition:padding-left .35s;
}
.stack-row:hover{padding-left:.8em}
.stack-row dt{font-family:var(--mono);font-size:11px;letter-spacing:.26em;color:var(--acid)}
.stack-row dd{font-size:clamp(16px,1.7vw,22px);color:var(--ink);font-weight:500}
.acid-tag{
  font-family:var(--mono);font-size:9px;letter-spacing:.2em;color:var(--acid);
  border:1px solid rgba(198,255,46,.35);padding:.4em .8em;margin-left:1.2em;
  vertical-align:middle;white-space:nowrap;
}

/* ---------- contact ---------- */
.chapter-contact{min-height:100vh}
.contact-line{font-size:clamp(34px,6.2vw,92px);max-width:14ch}
.chapter-contact .cta-row{margin-top:4em}
.footer{
  display:flex;justify-content:space-between;gap:2em;flex-wrap:wrap;
  margin-top:clamp(60px,10vh,120px);border-top:1px solid var(--line);
  padding:1.8em 1.6em;
  background:rgba(10,11,13,.72);backdrop-filter:blur(8px);
  font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:var(--ink-dim);
}
.footer-links{display:flex;gap:2.2em}
.footer a{color:var(--ink-dim);text-decoration:none;transition:color .3s}
.footer a:hover{color:var(--acid)}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .hud-rail a em{display:none}
}
@media (max-width:900px){
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric{grid-column:span 1 !important}
  .pillars{grid-template-columns:1fr}
  .pillar{min-height:0}
  .projects{grid-template-columns:1fr}
  .stack-row{grid-template-columns:1fr;gap:.5em}
}
@media (max-width:720px){
  .hud-status{display:none}
  .hud-rail{right:10px;gap:10px}
  .hud-rail a span{font-size:10px}
  .chapter{padding:16vh var(--pad)}
  .node:not(:last-child){margin-right:18px}
  .node:not(:last-child)::after{width:18px}
  .pipeline-track{gap:0}
  .timeline li{flex-direction:column;gap:.3em}
  .t-year{min-width:0}
  .acid-tag{margin-left:0;display:inline-block;margin-top:.6em}
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s !important;transition-duration:.001s !important}
  .grain{animation:none}
  [data-reveal]{opacity:1;transform:none}
  [data-reveal] .l{opacity:1;transform:none}
}