:root{
  --bg: #0B1420;
  --bg-panel: #0F1B2B;
  --bg-panel-2: #101d2f;
  --grid-line: rgba(125, 211, 252, 0.07);
  --ink: #E7EDF3;
  --muted: #8CA0B3;
  --muted-dim: #5D7286;
  --cyan: #7DD3FC;
  --amber: #F2A65A;
  --line: #24384D;
  --line-soft: #1A2A3B;
  --glow-cyan: rgba(125, 211, 252, 0.55);
  --glow-amber: rgba(242, 166, 90, 0.5);
  --mx: 50%;
  --my: 50%;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:'Inter',sans-serif;
  font-size:16px;
  line-height:1.6;
  overflow-x:hidden;
}
::selection{background:var(--cyan); color:var(--bg);}
a{color:inherit;}
.mono{font-family:'JetBrains Mono',monospace;}

#progress{
  position:fixed; top:0; left:0; height:2px;
  background:linear-gradient(90deg, var(--cyan), var(--amber));
  box-shadow:0 0 8px var(--glow-cyan);
  width:0%; z-index:200;
  transition:width .1s linear;
}
#spotlight{
  position:fixed; inset:0;
  background:radial-gradient(600px circle at var(--mx) var(--my), rgba(125,211,252,0.06), transparent 40%);
  pointer-events:none; z-index:1;
}
#scanline{
  position:fixed; left:0; right:0; height:120px;
  background:linear-gradient(to bottom, transparent, rgba(125,211,252,0.05), transparent);
  pointer-events:none; z-index:1;
  animation:sweep 9s linear infinite;
}
@keyframes sweep{0%{top:-120px;}100%{top:100vh;}}
@media (prefers-reduced-motion: reduce){ #scanline{display:none;} }

.grid-bg{
  position:fixed; inset:0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size:48px 48px;
  pointer-events:none; z-index:0;
  animation:gridDrift 40s linear infinite;
}
@keyframes gridDrift{0%{background-position:0 0,0 0;}100%{background-position:48px 96px,96px 48px;}}
@media (prefers-reduced-motion: reduce){ .grid-bg{animation:none;} }
.grid-fade{
  position:fixed; inset:0;
  background:radial-gradient(ellipse 80% 60% at 50% 0%, transparent 0%, var(--bg) 75%);
  pointer-events:none; z-index:0;
}

#particles{position:fixed; inset:0; z-index:0; pointer-events:none;}

@media (hover:hover){
  body{cursor:none;}
  input, textarea{cursor:text;}
}
.cursor-dot, .cursor-ring{
  position:fixed; top:0; left:0; pointer-events:none; z-index:300;
  border-radius:50%; transform:translate(-50%,-50%);
}
.cursor-dot{width:5px; height:5px; background:var(--cyan); box-shadow:0 0 8px var(--glow-cyan);}
.cursor-ring{
  width:34px; height:34px; border:1px solid var(--cyan);
  transition:width .25s ease, height .25s ease, border-color .25s ease, opacity .25s ease;
  opacity:.6;
}
.cursor-ring.active{width:56px; height:56px; border-color:var(--amber); opacity:.9;}
@media (hover:none){ .cursor-dot,.cursor-ring{display:none;} }

.tilt{ transform-style:preserve-3d; will-change:transform; }
.magnetic{display:inline-block;}

.wrap{max-width:1120px; margin:0 auto; padding:0 32px; position:relative;}

/* ===== NAV ===== */
header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  backdrop-filter:blur(10px);
  background:rgba(11,20,32,0.72);
  border-bottom:1px solid var(--line-soft);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 32px;
  max-width:1120px; margin:0 auto;
  gap:16px;
}
.wordmark{
  font-family:'Space Grotesk',sans-serif;
  font-weight:700; font-size:17px; letter-spacing:.02em;
  display:flex; align-items:center; gap:2px; flex-shrink:0;
  text-decoration:none;
}
.wordmark .dot{color:var(--amber); animation:dotPulse 2.4s ease-in-out infinite;}
@keyframes dotPulse{0%,100%{opacity:1; text-shadow:0 0 6px var(--glow-amber);}50%{opacity:.4; text-shadow:none;}}

nav.links{display:flex; gap:28px; align-items:center;}
nav.links a{
  font-family:'JetBrains Mono',monospace;
  font-size:12.5px; letter-spacing:.05em; text-transform:uppercase;
  color:var(--muted); text-decoration:none;
  position:relative; padding-bottom:3px;
  transition:color .25s ease;
  white-space:nowrap;
}
nav.links a::after{
  content:''; position:absolute; left:0; bottom:0; width:0; height:1px;
  background:var(--cyan); transition:width .25s ease;
}
nav.links a:hover{color:var(--ink);}
nav.links a:hover::after{width:100%;}

.btn{
  font-family:'JetBrains Mono',monospace;
  font-size:12px; letter-spacing:.04em; text-transform:uppercase;
  padding:11px 20px; border-radius:2px;
  text-decoration:none; display:inline-block;
  transition:all .25s ease; cursor:pointer; border:none;
  white-space:nowrap;
}
.btn-primary{ background:var(--cyan); color:#06131F; font-weight:600; }
.btn-primary:hover{ box-shadow:0 0 22px var(--glow-cyan); transform:translateY(-1px); }
.btn-ghost{ border:1px solid var(--line); color:var(--muted); background:transparent; }
.btn-ghost:hover{color:var(--cyan); border-color:var(--cyan); box-shadow:0 0 14px rgba(125,211,252,0.2);}

.navbar-cta{display:flex; align-items:center; gap:14px; flex-shrink:0;}

.lang-switch{display:flex; gap:4px; border:1px solid var(--line); border-radius:2px; padding:2px;}
.lang-btn{
  font-family:'JetBrains Mono',monospace; font-size:10.5px; letter-spacing:.04em;
  padding:5px 8px; border:none; background:transparent; color:var(--muted-dim);
  cursor:pointer; border-radius:1px; transition:all .2s ease;
}
.lang-btn:hover{color:var(--ink);}
.lang-btn.active{background:var(--cyan); color:#06131F; font-weight:600;}

.burger{display:none; flex-direction:column; gap:5px; cursor:pointer; z-index:110;}
.burger span{width:22px; height:1.5px; background:var(--ink);}

section{position:relative; z-index:2;}
.section{padding:110px 0; border-top:1px solid var(--line-soft);}
.corner{position:absolute; width:14px; height:14px; opacity:.5; animation:cornerPulse 4s ease-in-out infinite;}
.corner::before,.corner::after{content:''; position:absolute; background:var(--muted-dim);}
.corner::before{width:14px; height:1px; top:0;}
.corner::after{width:1px; height:14px; left:0;}
.corner.tl{top:24px; left:16px;}
.corner.tr{top:24px; right:16px;}
.corner.tr::before{right:0;}
.corner.tr::after{left:auto; right:0;}
@keyframes cornerPulse{0%,100%{opacity:.35;}50%{opacity:.85; filter:drop-shadow(0 0 3px var(--glow-cyan));}}

.eyebrow{
  display:flex; align-items:center; gap:10px;
  font-family:'JetBrains Mono',monospace; font-size:12px;
  letter-spacing:.12em; text-transform:uppercase; color:var(--cyan);
  margin-bottom:20px;
}
.eyebrow .idx{color:var(--muted-dim);}
.eyebrow .rule{flex:1; height:1px; max-width:120px; background:linear-gradient(90deg,var(--line),transparent); position:relative; overflow:hidden;}
.eyebrow .rule::after{content:''; position:absolute; top:0; left:-40%; width:40%; height:100%; background:linear-gradient(90deg,transparent,var(--cyan),transparent); animation:ruleTravel 3.5s ease-in-out infinite;}
@keyframes ruleTravel{0%{left:-40%;}60%,100%{left:110%;}}

h1,h2,h3{font-family:'Space Grotesk',sans-serif; font-weight:600; letter-spacing:-.01em;}
p{color:var(--muted); max-width:640px;}
strong{color:var(--ink); font-weight:600;}

.reveal{opacity:0; transform:translateY(24px) scale(.985); filter:blur(4px);
  transition:opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1), filter .8s ease;}
.reveal.in{opacity:1; transform:translateY(0) scale(1); filter:blur(0);}
@media (prefers-reduced-motion: reduce){ .reveal{transition:opacity .3s ease; transform:none; filter:none;} }

.section h2{font-size:clamp(30px,4vw,42px); color:var(--ink); margin-bottom:18px; max-width:680px;}
.section .intro{font-size:17px; margin-bottom:56px;}

.hero{
  min-height:100vh; display:flex; flex-direction:column; justify-content:center;
  position:relative; padding:140px 0 80px;
}
#node-canvas{position:absolute; top:0; right:-40px; width:520px; height:520px; opacity:.9; pointer-events:none;}
.hero-content{position:relative; z-index:2;}
.hero h1{
  font-size:clamp(46px,7.5vw,84px); line-height:.98; color:var(--ink); max-width:760px;
  animation:heroIn 1s cubic-bezier(.2,.7,.2,1) both;
}
@keyframes heroIn{from{opacity:0; transform:translateY(28px); filter:blur(6px);}to{opacity:1; transform:translateY(0); filter:blur(0);}}
.hero h1 .accent{color:var(--cyan); animation:accentGlow 3s ease-in-out infinite;}
@keyframes accentGlow{0%,100%{text-shadow:0 0 18px var(--glow-cyan);}50%{text-shadow:0 0 32px var(--glow-cyan),0 0 6px var(--glow-cyan);}}
.hero .lede{margin-top:26px; font-size:19px; max-width:540px; animation:heroIn 1s cubic-bezier(.2,.7,.2,1) .15s both;}
.hero .lede strong{color:var(--ink);}
.hero-ctas{display:flex; gap:14px; margin-top:38px; flex-wrap:wrap; animation:heroIn 1s cubic-bezier(.2,.7,.2,1) .3s both;}
.tag-row{display:flex; gap:10px; flex-wrap:wrap; margin-top:32px; animation:heroIn 1s cubic-bezier(.2,.7,.2,1) .4s both;}
.tag{font-family:'JetBrains Mono',monospace; font-size:11.5px; letter-spacing:.04em; color:var(--muted);
  border:1px solid var(--line); padding:6px 12px; border-radius:2px; transition:all .3s ease;}
.tag:hover{color:var(--cyan); border-color:var(--cyan); box-shadow:0 0 14px rgba(125,211,252,0.25);}
@media (prefers-reduced-motion: reduce){.hero h1,.hero .lede,.hero-ctas,.tag-row{animation:none; opacity:1; filter:none; transform:none;} .hero h1 .accent{animation:none;}}

.scroll-hint{position:absolute; bottom:40px; left:32px; font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--muted-dim); display:flex; align-items:center; gap:8px;}
.scroll-hint .bar{width:1px; height:32px; background:linear-gradient(var(--muted-dim),transparent); animation:scrolldown 1.8s ease-in-out infinite;}
@keyframes scrolldown{0%{opacity:0;}50%{opacity:1;}100%{opacity:0;}}

.page-hero{padding:150px 0 60px;}
.page-hero h1{font-size:clamp(38px,5.5vw,58px); color:var(--ink); max-width:720px;}

.chaos-list{display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--line-soft); border:1px solid var(--line-soft); margin-top:8px;}
.chaos-item{background:var(--bg); padding:28px 26px; transition:background .3s ease, box-shadow .3s ease;}
.chaos-item:hover{background:var(--bg-panel); box-shadow:inset 0 0 0 1px rgba(125,211,252,.2), 0 0 24px rgba(125,211,252,.06);}
.chaos-item .glyph{font-family:'JetBrains Mono',monospace; color:var(--amber); font-size:13px; margin-bottom:10px; display:block; transition:text-shadow .3s ease;}
.chaos-item:hover .glyph{text-shadow:0 0 10px var(--glow-amber);}
.chaos-item p{color:var(--ink); font-size:15px; max-width:none;}
.chaos-item .sub{color:var(--muted); font-size:13.5px; margin-top:6px;}

.duo{display:grid; grid-template-columns:1fr 1fr 1fr; gap:0; border:1px solid var(--line); margin-top:8px;}
.duo-col{padding:36px 30px; position:relative; transition:background .35s ease;}
.duo-col:hover{background:var(--bg-panel);}
.duo-col:not(:last-child){border-right:1px solid var(--line);}
.duo-col .k{font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--muted-dim); letter-spacing:.1em; text-transform:uppercase;}
.duo-col h3{font-size:21px; color:var(--ink); margin:10px 0 14px;}
.duo-col p{font-size:14px; margin-bottom:14px;}
.duo-col ul{list-style:none; margin-top:14px;}
.duo-col li{font-size:14px; color:var(--muted); padding:9px 0; border-top:1px solid var(--line-soft); display:flex; gap:10px; transition:padding-left .25s ease, color .25s ease;}
.duo-col li:hover{padding-left:6px; color:var(--ink);}
.duo-col li::before{content:'→'; color:var(--cyan); flex-shrink:0; transition:text-shadow .25s ease;}
.duo-col li:hover::before{text-shadow:0 0 8px var(--glow-cyan);}
.duo-col.it li::before{color:var(--amber);}
.duo-col.it li:hover::before{text-shadow:0 0 8px var(--glow-amber);}
.synergy{margin-top:28px; padding:18px 20px; border:1px dashed var(--line); font-family:'JetBrains Mono',monospace; font-size:12.5px; color:var(--muted); line-height:1.7;}
.synergy strong{color:var(--cyan);}

@media (max-width:720px){
  .chaos-list{grid-template-columns:1fr;}
  .duo{grid-template-columns:1fr;}
  .duo-col:not(:last-child){border-right:none; border-bottom:1px solid var(--line);}
}

.step{display:grid; grid-template-columns:80px 1fr; gap:24px; padding:28px 0; border-top:1px solid var(--line-soft); align-items:start; transition:padding-left .3s ease;}
.step:hover{padding-left:8px;}
.step:last-child{border-bottom:1px solid var(--line-soft);}
.step .num{font-family:'JetBrains Mono',monospace; font-size:34px; color:var(--line); font-weight:500; line-height:1; transition:color .3s ease, text-shadow .3s ease;}
.step:hover .num{color:var(--cyan); text-shadow:0 0 16px var(--glow-cyan);}
.step h3{font-size:19px; color:var(--ink); margin-bottom:6px;}
.step p{font-size:14.5px; max-width:560px;}

.cards{display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-top:8px;}
.card{border:1px solid var(--line); padding:24px 18px; background:var(--bg-panel);
  transition:transform .3s cubic-bezier(.2,.7,.2,1), border-color .3s ease, box-shadow .3s ease;}
.card:hover{transform:translateY(-6px); border-color:var(--cyan); box-shadow:0 10px 30px -10px rgba(125,211,252,.25), 0 0 0 1px rgba(125,211,252,.15) inset;}
.card .tag2{font-family:'JetBrains Mono',monospace; font-size:10.5px; color:var(--amber); text-transform:uppercase; letter-spacing:.08em;}
.card h3{font-size:16.5px; margin:10px 0 8px; color:var(--ink);}
.card p{font-size:13px; margin:0;}
@media (max-width:720px){ .cards{grid-template-columns:1fr 1fr;} }

.sim-box{
  border:1px solid var(--line); background:var(--bg-panel);
  padding:40px; margin-top:8px;
  display:grid; grid-template-columns:1.1fr 1fr; gap:48px;
}
.sim-sliders .slider-row{margin-bottom:26px;}
.sim-sliders .slider-row:last-child{margin-bottom:0;}
.sim-sliders label{
  display:flex; justify-content:space-between; align-items:center;
  font-family:'JetBrains Mono',monospace; font-size:12px; letter-spacing:.04em;
  color:var(--muted); text-transform:uppercase; margin-bottom:10px;
}
.sim-sliders label .val{color:var(--cyan); font-size:14px;}
input[type="range"]{ -webkit-appearance:none; width:100%; height:2px; background:var(--line); border-radius:2px; outline:none; }
input[type="range"]::-webkit-slider-thumb{
  -webkit-appearance:none; width:16px; height:16px; border-radius:50%;
  background:var(--cyan); box-shadow:0 0 10px var(--glow-cyan); cursor:pointer;
  border:2px solid var(--bg);
}
input[type="range"]::-moz-range-thumb{
  width:16px; height:16px; border-radius:50%; background:var(--cyan);
  box-shadow:0 0 10px var(--glow-cyan); cursor:pointer; border:2px solid var(--bg);
}
.sim-result{display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center;}
.gauge{position:relative; width:180px; height:180px; margin-bottom:20px;}
.gauge svg{transform:rotate(-90deg);}
.gauge-value{ position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; }
.gauge-value .num{font-family:'Space Grotesk',sans-serif; font-size:38px; font-weight:700; color:var(--ink);}
.gauge-value .lbl{font-family:'JetBrains Mono',monospace; font-size:10px; color:var(--muted-dim); text-transform:uppercase; letter-spacing:.08em;}
.sim-verdict{font-family:'JetBrains Mono',monospace; font-size:13px; letter-spacing:.06em; text-transform:uppercase; color:var(--amber); margin-bottom:6px;}
.sim-note{font-size:13.5px; color:var(--muted); max-width:280px;}
@media (max-width:820px){ .sim-box{grid-template-columns:1fr; gap:32px;} }

.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:60px; margin-top:8px; align-items:start;}
.contact-info .item{margin-bottom:28px;}
.contact-info .k{font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--muted-dim); text-transform:uppercase; letter-spacing:.08em; margin-bottom:6px;}
.contact-info .v{font-size:16px; color:var(--ink);}
.contact-info a.v{text-decoration:none; transition:color .25s ease;}
.contact-info a.v:hover{color:var(--cyan);}

form{display:flex; flex-direction:column; gap:18px;}
.field{display:flex; flex-direction:column; gap:8px;}
.field label{font-family:'JetBrains Mono',monospace; font-size:11px; letter-spacing:.06em; text-transform:uppercase; color:var(--muted-dim);}
.field input, .field textarea{
  background:var(--bg-panel); border:1px solid var(--line); color:var(--ink);
  padding:12px 14px; font-family:'Inter',sans-serif; font-size:14.5px; border-radius:2px;
  transition:border-color .25s ease, box-shadow .25s ease;
}
.field input:focus, .field textarea:focus{outline:none; border-color:var(--cyan); box-shadow:0 0 0 3px rgba(125,211,252,0.12);}
.field textarea{resize:vertical; min-height:110px;}
.form-note{font-size:12.5px; color:var(--muted-dim); font-family:'JetBrains Mono',monospace;}
@media (max-width:820px){ .contact-grid{grid-template-columns:1fr;} }

.cta-box{border:1px solid var(--line); background:var(--bg-panel); padding:44px 40px; margin-top:8px; display:flex; justify-content:space-between; align-items:center; gap:32px; flex-wrap:wrap;}
.cta-box .cta-actions{display:flex; gap:14px; align-items:center; flex-wrap:wrap;}
.cta-box .cta-mail{font-family:'JetBrains Mono',monospace; font-size:12.5px; color:var(--muted); text-decoration:none; transition:color .25s ease;}
.cta-box .cta-mail:hover{color:var(--cyan);}

footer{border-top:1px solid var(--line-soft); padding:36px 32px; position:relative; z-index:2;}
.footer-inner{max-width:1120px; margin:0 auto; display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:14px;
  font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--muted-dim);}

@media (max-width:1024px){
  nav.links{display:none;}
  .burger{display:flex;}
  .navbar-cta .btn-ghost{display:none;}
  #node-canvas{width:320px; height:320px; opacity:.6; top:0; right:-50px;}
}

/* ===== TABLET (721px – 1024px): 3-col grids become 2-col ===== */
@media (min-width:721px) and (max-width:1024px){
  .duo{grid-template-columns:1fr 1fr;}
  .duo-col:nth-child(3){grid-column:1 / -1; border-right:none; border-top:1px solid var(--line);}
  .cards{grid-template-columns:1fr 1fr;}
  .wrap{padding:0 28px;}
  .section{padding:90px 0;}
}

/* ===== PHONE (≤640px) ===== */
@media (max-width:640px){
  .wrap{padding:0 20px;}
  .section{padding:64px 0;}
  .nav{padding:14px 18px;}
  .hero{padding:120px 0 60px;}
  .hero h1{font-size:clamp(36px,11vw,52px);}
  .hero .lede{font-size:16.5px;}
  #node-canvas{width:220px; height:220px; opacity:.4; top:-10px; right:-70px;}
  .sim-box{padding:24px 20px; gap:28px;}
  .duo-col{padding:28px 22px;}
  .card{padding:20px 14px;}
  .card h3{font-size:15px;}
  .contact-grid{gap:36px;}
  .lang-switch{gap:2px;}
  .lang-btn{padding:5px 6px; font-size:10px;}
  .cta-box{padding:28px 22px;}
}

/* ===== SMALL PHONE (≤400px) ===== */
@media (max-width:400px){
  .navbar-cta .btn-primary{padding:9px 12px; font-size:10.5px;}
  .wordmark{font-size:15px;}
  #node-canvas{display:none;}
  .cards{grid-template-columns:1fr;}
}