:root{
  --bg:#020712;
  --bg-soft:#061426;
  --panel:#081b32;
  --panel-2:#0b2340;
  --text:#f6fbff;
  --soft:#d5e6f4;
  --muted:#a4bbcf;
  --dim:#7d98b0;
  --cyan:#55e6ff;
  --blue:#347dff;
  --green:#74f7b7;
  --orange:#ff9a45;
  --red:#ff8b98;
  --line:rgba(91,226,255,.22);
  --line-soft:rgba(255,255,255,.09);
  --shadow:0 30px 90px rgba(0,0,0,.42);
  --radius:28px;
  --radius-small:18px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{
  margin:0;
  color:var(--text);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  line-height:1.65;
  overflow-x:hidden;
  background:
    radial-gradient(circle at 14% -4%,rgba(52,125,255,.24),transparent 34rem),
    radial-gradient(circle at 89% 2%,rgba(85,230,255,.16),transparent 30rem),
    radial-gradient(circle at 56% 75%,rgba(255,154,69,.06),transparent 36rem),
    linear-gradient(180deg,#020712 0%,#061426 45%,#020712 100%);
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(85,230,255,.034) 1px,transparent 1px),
    linear-gradient(90deg,rgba(85,230,255,.034) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:linear-gradient(to bottom,#000,transparent 84%);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button,input,textarea{font:inherit}
button{color:inherit}
.wrap{width:min(var(--max),calc(100% - 32px));margin-inline:auto}
.skip{
  position:absolute;left:12px;top:-100px;z-index:1000;
  background:#fff;color:#001321;padding:10px 15px;border-radius:999px;font-weight:900
}
.skip:focus{top:12px}
.topbar{border-bottom:1px solid var(--line-soft);background:#03101d}
.topbar .wrap{
  min-height:38px;display:flex;align-items:center;justify-content:center;
  text-align:center;color:var(--soft);font-size:.83rem;font-weight:800
}
.topbar strong{color:var(--green)}
header{
  position:sticky;top:0;z-index:100;
  background:rgba(2,7,18,.84);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(18px)
}
.nav{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand img{
  width:48px;height:48px;border-radius:16px;object-fit:cover;
  box-shadow:0 0 34px rgba(85,230,255,.25);
  border:1px solid rgba(85,230,255,.28)
}
.brand strong{display:block;font-size:1rem;line-height:1;letter-spacing:.08em;text-transform:uppercase}
.brand span span{display:block;color:var(--muted);font-size:.75rem;margin-top:4px}
.navlinks{display:flex;align-items:center;gap:7px}
.navlinks>a:not(.btn){
  padding:9px 10px;border:1px solid transparent;border-radius:999px;
  color:var(--muted);font-size:.86rem;font-weight:850
}
.navlinks>a:not(.btn):hover,.navlinks>a:not(.btn):focus-visible{
  color:#fff;border-color:var(--line);background:rgba(85,230,255,.07);outline:none
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:49px;padding:13px 19px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.045);
  color:#fff;font-weight:950;text-align:center;cursor:pointer;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease,background .18s ease
}
.btn:hover,.btn:focus-visible{
  transform:translateY(-2px);border-color:rgba(85,230,255,.72);
  box-shadow:0 18px 54px rgba(52,125,255,.2);outline:none
}
.btn.primary{
  background:linear-gradient(135deg,var(--green),var(--cyan) 44%,var(--blue));
  color:#00121f;border-color:rgba(116,247,183,.62);
  box-shadow:0 20px 64px rgba(52,125,255,.27)
}
.btn.orange{
  background:linear-gradient(135deg,var(--orange),#ffd08a);
  color:#1e0b00;border-color:rgba(255,208,138,.72)
}
.hero{
  padding:clamp(26px,5vw,62px) 0 34px;
  border-bottom:1px solid var(--line-soft);
  min-height:calc(100svh - 110px);
  display:grid;align-items:center
}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1.08fr) minmax(350px,.92fr);
  gap:clamp(18px,3.2vw,40px);align-items:center
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  border:1px solid rgba(85,230,255,.28);
  background:rgba(85,230,255,.07);
  border-radius:999px;padding:8px 12px;
  color:var(--cyan);font-size:.77rem;font-weight:1000;
  text-transform:uppercase;letter-spacing:.09em
}
.dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 20px var(--green)}
h1,h2,h3{margin:0;color:#fff;letter-spacing:-.052em;line-height:1}
h1{font-size:clamp(3rem,6.8vw,6rem);margin:16px 0 18px;max-width:900px}
h2{font-size:clamp(2.1rem,4.7vw,4.15rem)}
h3{font-size:1.24rem;letter-spacing:-.035em;line-height:1.14}
.gradient{
  background:linear-gradient(135deg,#fff 7%,#92f5ff 43%,#4aa1ff 72%,#fff);
  -webkit-background-clip:text;background-clip:text;color:transparent
}
.lead{font-size:clamp(1.04rem,1.7vw,1.25rem);color:var(--soft);max-width:780px;margin:0 0 14px}
.sublead{color:var(--muted);max-width:760px;margin:0}
.hero-actions{display:flex;gap:11px;flex-wrap:wrap;margin:22px 0 18px}
.proof-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}
.proof-strip>div{
  border:1px solid var(--line-soft);border-radius:17px;
  background:rgba(2,7,18,.4);padding:13px
}
.proof-strip strong{display:block;font-size:.94rem;line-height:1.2}
.proof-strip span{display:block;color:var(--muted);font-size:.8rem;line-height:1.35;margin-top:4px}
.visual{
  position:relative;min-height:560px;border:1px solid var(--line);
  border-radius:35px;overflow:hidden;display:grid;place-items:end center;isolation:isolate;
  background:
    radial-gradient(circle at 50% 42%,rgba(85,230,255,.18),transparent 48%),
    linear-gradient(180deg,rgba(13,36,66,.78),rgba(4,14,31,.94));
  box-shadow:var(--shadow)
}
.visual::before{
  content:"";position:absolute;width:445px;height:445px;border-radius:50%;
  border:1px solid rgba(85,230,255,.24);
  box-shadow:0 0 0 44px rgba(85,230,255,.035),0 0 0 92px rgba(52,125,255,.025),0 0 100px rgba(85,230,255,.2);
  top:60px;left:50%;transform:translateX(-50%);z-index:-1
}
.visual img{
  height:min(76vh,620px);width:auto;object-fit:contain;object-position:center bottom;
  filter:drop-shadow(0 26px 48px rgba(0,0,0,.52));z-index:2
}
.visual-badge{
  position:absolute;left:18px;top:18px;z-index:3;padding:10px 12px;
  border:1px solid rgba(85,230,255,.27);border-radius:16px;
  background:rgba(2,7,18,.74);backdrop-filter:blur(12px)
}
.visual-badge strong{display:block;font-size:.8rem}
.visual-badge span{display:block;color:var(--cyan);font-size:.76rem}
.flow-chip{
  position:absolute;right:18px;z-index:3;
  border:1px solid var(--line);border-radius:15px;padding:9px 12px;
  background:rgba(2,7,18,.76);backdrop-filter:blur(12px);
  color:var(--soft);font-size:.78rem;font-weight:850
}
.flow-chip.one{top:24%}.flow-chip.two{top:39%}.flow-chip.three{top:54%}
.flow-chip::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:8px;background:var(--green);box-shadow:0 0 14px var(--green)}
section{padding:clamp(58px,8vw,104px) 0;position:relative}
.section-head{max-width:860px;margin-bottom:29px}
.kicker{
  margin:0 0 9px;color:var(--cyan);font-size:.78rem;font-weight:1000;
  text-transform:uppercase;letter-spacing:.11em
}
.section-head p{color:var(--muted);font-size:1.04rem;margin:15px 0 0;max-width:790px}
.answer{
  display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:center;
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(135deg,rgba(85,230,255,.1),rgba(52,125,255,.08)),rgba(7,20,40,.88);
  box-shadow:var(--shadow);padding:clamp(24px,4vw,41px)
}
.answer p{font-size:clamp(1.04rem,1.7vw,1.25rem);color:var(--soft);margin:13px 0 0}
.fact-list{display:grid;gap:9px}
.fact{
  display:flex;justify-content:space-between;gap:14px;padding:12px 13px;
  border:1px solid var(--line-soft);border-radius:15px;background:rgba(2,7,18,.35)
}
.fact span{color:var(--muted);font-size:.84rem;font-weight:800}
.fact strong{text-align:right;font-size:.86rem}
.grid{display:grid;gap:15px}
.grid.two{grid-template-columns:repeat(2,1fr)}
.grid.three{grid-template-columns:repeat(3,1fr)}
.grid.four{grid-template-columns:repeat(4,1fr)}
.card{
  position:relative;overflow:hidden;padding:22px;border:1px solid var(--line-soft);
  border-radius:22px;background:linear-gradient(180deg,rgba(14,36,66,.78),rgba(6,18,37,.84));
  box-shadow:0 20px 64px rgba(0,0,0,.22)
}
.card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 18% 0%,rgba(85,230,255,.09),transparent 36%)
}
.card>*{position:relative}
.card p{color:var(--muted);margin:9px 0 0}
.icon{
  width:42px;height:42px;border-radius:14px;display:grid;place-items:center;margin-bottom:15px;
  background:rgba(85,230,255,.1);border:1px solid rgba(85,230,255,.22);
  color:var(--cyan);font-weight:1000
}
.example{
  display:grid;grid-template-columns:.95fr 1.05fr;gap:18px;align-items:stretch
}
.example-copy,.example-result{
  border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(8,24,45,.82);box-shadow:var(--shadow);padding:clamp(22px,4vw,35px)
}
.example-copy p,.example-result p{color:var(--muted);margin:11px 0 0}
.prompt-box{
  margin-top:18px;padding:17px;border-radius:17px;border:1px solid rgba(255,154,69,.28);
  background:rgba(255,154,69,.07);color:var(--soft);font-weight:800
}
.source-list{display:grid;gap:10px;margin-top:17px}
.source-line{
  display:flex;align-items:flex-start;gap:12px;padding:13px;border-radius:16px;
  border:1px solid var(--line-soft);background:rgba(255,255,255,.035)
}
.source-line b{color:var(--green);min-width:26px}
.source-line span{color:var(--soft)}
.diagram{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);background:#061426
}
.diagram img{width:100%}
.split{display:grid;grid-template-columns:1fr 1fr;gap:17px}
.panel{
  border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(8,23,45,.82);box-shadow:var(--shadow);
  padding:clamp(22px,4vw,35px)
}
.panel p{color:var(--muted);margin:10px 0 0}
.clean{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:11px}
.clean li{position:relative;padding-left:30px;color:var(--soft);font-weight:720}
.clean li::before{
  content:"✓";position:absolute;left:0;top:0;width:22px;height:22px;border-radius:8px;
  display:grid;place-items:center;background:rgba(116,247,183,.11);color:var(--green);font-weight:1000
}
.bad .clean li::before{content:"×";background:rgba(255,139,152,.1);color:var(--red)}
.comparison{overflow:auto;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}
table{width:100%;border-collapse:collapse;min-width:760px;background:rgba(7,20,40,.84)}
th,td{padding:16px 17px;text-align:left;border-bottom:1px solid var(--line-soft);vertical-align:top}
th{background:rgba(85,230,255,.08);font-size:.82rem;text-transform:uppercase;letter-spacing:.04em}
td{color:var(--soft);font-weight:620}
td:first-child{color:var(--cyan);font-weight:900}
tr:last-child td{border-bottom:0}
.steps{counter-reset:step;display:grid;gap:12px}
.step{
  counter-increment:step;display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;
  border:1px solid var(--line-soft);border-radius:19px;padding:17px;background:rgba(255,255,255,.035)
}
.step::before{
  content:counter(step);width:38px;height:38px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--green),var(--cyan));color:#00121f;font-weight:1000
}
.step h3{margin-top:4px}
.step p{color:var(--muted);margin:7px 0 0}
.checker{
  display:grid;grid-template-columns:.85fr 1.15fr;gap:18px;align-items:start
}
.checker-copy{position:sticky;top:100px}
.checker-copy p{color:var(--muted);margin:13px 0}
.quiz{
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(14,36,66,.82),rgba(6,18,37,.88));
  box-shadow:var(--shadow);padding:clamp(20px,4vw,32px)
}
.check-row{
  display:flex;gap:12px;align-items:flex-start;padding:13px 0;border-bottom:1px solid var(--line-soft)
}
.check-row:last-of-type{border-bottom:0}
.check-row input{width:20px;height:20px;margin-top:3px;accent-color:#55e6ff}
.check-row label{color:var(--soft);font-weight:750;cursor:pointer}
.quiz-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.result{
  display:none;margin-top:18px;padding:18px;border:1px solid rgba(116,247,183,.28);
  border-radius:18px;background:rgba(116,247,183,.07)
}
.result.show{display:block}
.result strong{display:block;font-size:1.35rem}
.result p{color:var(--soft);margin:7px 0 0}
details{
  border:1px solid var(--line-soft);background:rgba(10,26,49,.72);
  border-radius:18px;padding:16px 18px;margin:10px 0
}
summary{cursor:pointer;color:#fff;font-weight:900}
details p{color:var(--muted);margin:11px 0 0}
.sources{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.source-card{
  display:flex;flex-direction:column;gap:10px;height:100%;
  border:1px solid var(--line-soft);border-radius:20px;padding:19px;
  background:rgba(255,255,255,.035)
}
.source-card:hover,.source-card:focus-visible{
  border-color:rgba(85,230,255,.58);background:rgba(85,230,255,.07);outline:none
}
.source-card strong{font-size:1.05rem}
.source-card span{color:var(--muted);font-size:.88rem}
.source-card b{margin-top:auto;color:var(--cyan);font-size:.84rem}
.cta{
  border:1px solid rgba(116,247,183,.26);border-radius:34px;
  padding:clamp(30px,6vw,58px);text-align:center;
  background:
    radial-gradient(circle at 50% 0%,rgba(116,247,183,.12),transparent 26rem),
    linear-gradient(180deg,rgba(14,36,66,.9),rgba(6,18,37,.93));
  box-shadow:var(--shadow)
}
.cta h2{max-width:820px;margin-inline:auto}
.cta p{max-width:720px;margin:15px auto;color:var(--muted)}
.cta .hero-actions{justify-content:center}
.form-card{
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(14,36,66,.82),rgba(6,18,37,.88));
  box-shadow:var(--shadow);padding:clamp(20px,4vw,32px);margin-top:26px;text-align:left
}
form{display:grid;gap:13px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label.field{display:grid;gap:7px;color:var(--soft);font-size:.9rem;font-weight:850}
input,textarea{
  width:100%;border:1px solid var(--line-soft);background:rgba(2,7,18,.62);
  color:#fff;border-radius:14px;padding:13px 14px;outline:none
}
textarea{min-height:112px;resize:vertical}
input:focus,textarea:focus{border-color:rgba(85,230,255,.7);box-shadow:0 0 0 4px rgba(85,230,255,.08)}
.notice{margin:0;color:var(--dim);font-size:.84rem}
.status{min-height:22px;color:var(--green);font-weight:800}
.network a{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  border:1px solid var(--line-soft);background:rgba(255,255,255,.035);
  border-radius:18px;padding:16px
}
.network a:hover,.network a:focus-visible{
  border-color:rgba(85,230,255,.57);background:rgba(85,230,255,.07);outline:none
}
.network strong{display:block}
.network span span{display:block;color:var(--muted);font-size:.84rem;margin-top:3px}
.arrow{color:var(--cyan);font-size:1.35rem}
footer{border-top:1px solid var(--line);background:rgba(2,7,18,.76);padding:28px 0}
.footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:start}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand img{width:46px;height:46px;border-radius:15px}
.footer-brand strong{display:block}
.footer-brand span{display:block;color:var(--muted);font-size:.82rem}
.footer-links{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.footer-links a{color:var(--soft);font-weight:800;font-size:.86rem}
.footer-links a:hover{color:#fff}
.legal{grid-column:1/-1;color:var(--dim);font-size:.8rem;margin-top:8px}
@media(max-width:1040px){
  .hero-grid,.answer,.checker,.example{grid-template-columns:1fr}
  .visual{min-height:515px}
  .checker-copy{position:static}
  .grid.four{grid-template-columns:repeat(2,1fr)}
  .navlinks>a:not(.btn){display:none}
}
@media(max-width:760px){
  .wrap{width:min(var(--max),calc(100% - 24px))}
  .topbar .wrap{font-size:.76rem}
  .brand span span{display:none}
  .brand img{width:44px;height:44px}
  .nav{min-height:65px}
  .hero{padding-top:22px;min-height:auto}
  .hero-actions .btn,.cta .btn{width:100%}
  .proof-strip,.grid.two,.grid.three,.grid.four,.split,.form-grid,.sources,.footer-grid{grid-template-columns:1fr}
  .visual{min-height:410px}
  .visual img{height:430px}
  .visual::before{width:310px;height:310px;top:48px}
  .flow-chip{display:none}
  .footer-links{justify-content:flex-start}
}
@media(max-width:420px){
  h1{font-size:clamp(2.72rem,16vw,4rem)}
  .visual{min-height:370px}
  .visual img{height:390px}
  .visual-badge{left:12px;top:12px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .btn:hover{transform:none}
}