/* ==========================================================================
   XRMN — xrmntoken.top
   Visual language: data pipeline.
   Dark slate ground, chartreuse signal, amber caution, mono annotation.
   ========================================================================== */

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}

:root{
  --bg:#0f1418;
  --bg-2:#131a1f;
  --panel:#161e24;
  --panel-2:#1b252c;
  --line:#26323a;
  --line-2:#35454f;
  --ink:#e4edf1;
  --ink-2:#adbcc4;
  --muted:#7d8f99;
  --lime:#a8e05f;
  --lime-d:#7cb030;
  --amber:#e8b84b;
  --rose:#e2726b;

  --f-head:'Rajdhani',system-ui,sans-serif;
  --f-body:'Inter',system-ui,-apple-system,sans-serif;
  --f-mono:'Roboto Mono',ui-monospace,SFMono-Regular,Menlo,monospace;

  --maxw:1220px;
  --gutter:clamp(20px,5vw,42px);
  --r:3px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
}

html{background:var(--bg)}
body{
  font-family:var(--f-body);
  font-size:clamp(15.5px,1vw,17px);
  line-height:1.74;
  color:var(--ink-2);
  background:
    radial-gradient(1000px 560px at 86% -8%,rgba(168,224,95,.08),transparent 62%),
    radial-gradient(820px 460px at 2% 6%,rgba(232,184,75,.05),transparent 60%),
    linear-gradient(180deg,#0f1418 0%,#12181d 46%,#0f1418 100%);
  background-attachment:fixed;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
/* node-grid ground */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(120,160,180,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,160,180,.05) 1px,transparent 1px);
  background-size:48px 48px,48px 48px;
  mask-image:radial-gradient(1100px 700px at 50% 0%,#000 28%,transparent 86%);
}
.wrap{position:relative;z-index:2}
.shell{width:min(100% - 2*var(--gutter),var(--maxw));margin-inline:auto}

h1,h2,h3,h4{font-family:var(--f-head);color:var(--ink);font-weight:700;line-height:1.1;
  letter-spacing:.005em}
h1{font-size:clamp(2.15rem,5.4vw,3.9rem);line-height:1.02}
h2{font-size:clamp(1.5rem,2.9vw,2.2rem)}
h3{font-size:clamp(1.04rem,1.5vw,1.22rem)}
p{margin-block:0 1.15em}
strong{color:var(--ink);font-weight:600}
a{color:var(--lime);text-decoration:none;text-underline-offset:3px}
a:hover{text-decoration:underline}
em{color:var(--ink);font-style:italic}

.label{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--lime)}
.lede{font-size:clamp(1.05rem,1.4vw,1.22rem);line-height:1.6;color:var(--ink-2)}

.skip{position:absolute;left:12px;top:-64px;z-index:100;background:var(--lime);color:#16210a;
  padding:12px 18px;border-radius:var(--r);font-weight:700;transition:top .25s var(--ease)}
.skip:focus{top:12px}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:2px}

/* ---- header ------------------------------------------------------------ */
.hdr{position:sticky;top:0;z-index:40;backdrop-filter:blur(14px);
  background:linear-gradient(180deg,rgba(15,20,24,.94),rgba(15,20,24,.72));border-bottom:1px solid var(--line)}
.hdr__in{display:flex;align-items:center;gap:clamp(12px,2.4vw,28px);min-height:62px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
.brand:hover{text-decoration:none}
.brand b{font-family:var(--f-head);font-weight:700;font-size:1.14rem;letter-spacing:.1em;text-transform:uppercase}
.brand b i{font-style:normal;color:var(--lime)}
.brand small{display:block;font-family:var(--f-mono);font-size:.56rem;letter-spacing:.16em;color:var(--muted);
  text-transform:uppercase;margin-top:1px}
.nav{margin-left:auto;display:flex;gap:clamp(11px,2vw,24px)}
.nav a{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);
  text-decoration:none;padding:6px 0;border-bottom:2px solid transparent;white-space:nowrap;
  transition:color .25s var(--ease),border-color .25s var(--ease)}
.nav a:hover,.nav a.is-on{color:var(--ink);border-bottom-color:var(--lime);text-decoration:none}

/* ---- hero -------------------------------------------------------------- */
.hero{padding:clamp(40px,6vw,82px) 0 clamp(24px,3vw,40px)}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,.8fr);
  gap:clamp(26px,4vw,54px);align-items:start}
.hero h1{margin:.4em 0 .5em;max-width:17ch}
.hero .lede{max-width:52ch}
.hero__stats{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:24px;font-family:var(--f-mono);
  font-size:.7rem;letter-spacing:.06em;color:var(--muted);text-transform:uppercase}

/* source panel */
.srcs{background:linear-gradient(165deg,var(--panel),var(--bg-2));border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden}
.srcs__hd{padding:11px 15px;border-bottom:1px solid var(--line);font-family:var(--f-mono);font-size:.63rem;
  letter-spacing:.16em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:8px}
.srcs__hd .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(168,224,95,.13)}
.srcs ul{padding:6px 15px 14px}
.srcs li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);
  font-family:var(--f-mono);font-size:.76rem}
.srcs li:last-child{border-bottom:0}
.srcs li span{color:var(--muted)}
.srcs li b{color:var(--ink);font-weight:400}

/* hero figure */
.frame{margin-top:clamp(26px,4vw,46px);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  position:relative;background:var(--panel)}
.frame img{width:100%;height:clamp(220px,36vw,410px);object-fit:cover;filter:saturate(.8) contrast(1.05) brightness(.94)}
.frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,20,24,.15),rgba(15,20,24,.7))}
.frame figcaption{position:absolute;left:0;bottom:0;z-index:2;padding:15px 18px;font-family:var(--f-mono);
  font-size:.7rem;color:var(--ink-2);max-width:70ch}

/* ---- article ----------------------------------------------------------- */
.doc{width:min(100% - 2*var(--gutter),840px);margin-inline:auto;padding:clamp(34px,5vw,68px) 0 clamp(46px,7vw,92px)}
.sect{padding-block:clamp(26px,3.6vw,46px);border-top:1px solid var(--line);scroll-margin-top:84px}
.sect:first-child{border-top:0;padding-top:0}
.sect__hd{display:flex;align-items:baseline;gap:14px;margin-bottom:1em;flex-wrap:wrap}
.sect__n{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.14em;color:var(--lime);flex:0 0 auto}
.sect h2{margin:0}
.prose p{margin-bottom:1.15em}
.prose ul{margin:0 0 1.2em;display:flex;flex-direction:column;gap:.55em}
.prose li{position:relative;padding-left:1.6em}
.prose li::before{content:"";position:absolute;left:1px;top:.6em;width:8px;height:8px;border:1.5px solid var(--lime);
  transform:rotate(45deg)}

/* pipeline diagram */
.pipe{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin:1.9em 0;border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden}
.pipe > div{padding:16px 14px;background:var(--panel);position:relative;min-width:0;
  border-right:1px solid var(--line)}
.pipe > div:last-child{border-right:0;background:linear-gradient(180deg,rgba(168,224,95,.08),transparent)}
.pipe b{display:block;font-family:var(--f-mono);font-size:.62rem;letter-spacing:.12em;color:var(--lime);
  margin-bottom:8px}
.pipe h3{font-size:.98rem;margin-bottom:.3em;font-family:var(--f-body);font-weight:600;letter-spacing:0}
.pipe p{font-size:.82rem;color:var(--muted);margin:0;line-height:1.55}
.pipe > div::after{content:"";position:absolute;right:-5px;top:50%;transform:translateY(-50%) rotate(45deg);
  width:9px;height:9px;border-top:2px solid var(--lime-d);border-right:2px solid var(--lime-d);z-index:2}
.pipe > div:last-child::after{display:none}

/* data type table */
.tbl-wrap{overflow-x:auto;margin:1.7em 0;border:1px solid var(--line);border-radius:var(--r)}
table{font-size:.89rem;min-width:540px}
caption{caption-side:top;text-align:left;font-family:var(--f-mono);font-size:.64rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);padding:13px 16px;border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.02)}
th,td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
thead th{font-family:var(--f-mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--lime);
  background:rgba(168,224,95,.045)}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:rgba(168,224,95,.03)}
td strong{color:var(--ink)}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden;margin:1.7em 0}
.split > div{background:var(--panel);padding:20px}
.split h3{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--lime);margin-bottom:9px;font-weight:400}
.split p{font-size:.9rem;color:var(--ink-2);margin:0}

/* caution */
.caution{margin:1.7em 0;padding:16px 19px;background:rgba(232,184,75,.06);border:1px solid rgba(232,184,75,.3);
  border-radius:var(--r)}
.caution b{display:block;font-family:var(--f-mono);font-size:.66rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--amber);margin-bottom:7px}
.caution p{margin:0;font-size:.92rem;color:var(--ink-2)}
.caution p + p{margin-top:.7em}

/* three pillars */
.pillars{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:1.7em 0}
.pillars > div{background:linear-gradient(165deg,var(--panel),rgba(22,30,36,.4));border:1px solid var(--line);
  border-radius:var(--r);padding:18px;border-top:2px solid var(--lime);
  transition:transform .3s var(--ease-out),border-color .3s var(--ease)}
.pillars > div:hover{transform:translateY(-3px);border-color:var(--lime-d)}
.pillars b{font-family:var(--f-mono);font-size:.64rem;letter-spacing:.13em;color:var(--lime);display:block;margin-bottom:8px}
.pillars h3{font-size:1rem;margin-bottom:.35em}
.pillars p{font-size:.86rem;color:var(--muted);margin:0;line-height:1.6}

figure.inline{margin:2em 0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--panel)}
figure.inline img{width:100%;height:clamp(190px,29vw,330px);object-fit:cover;filter:saturate(.8)}
figure.inline figcaption{padding:12px 15px;font-family:var(--f-mono);font-size:.7rem;color:var(--muted);
  border-top:1px solid var(--line)}

/* faq */
.faq{margin-top:1.4em;border-top:1px solid var(--line-2)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;padding:18px 42px 18px 26px;position:relative;font-family:var(--f-head);
  font-weight:600;font-size:1.06rem;color:var(--ink);list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:">";position:absolute;left:0;top:50%;transform:translateY(-50%);
  font-family:var(--f-mono);color:var(--lime);font-size:.9rem}
.faq details[open] summary::before{content:"v"}
.faq summary::after{content:"";position:absolute;right:8px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--lime);border-bottom:2px solid var(--lime);
  transform:translateY(-70%) rotate(45deg);transition:transform .3s var(--ease)}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq summary:hover{color:var(--lime)}
.faq .a{padding:0 0 20px 26px;font-size:.93rem}
.faq .a p:last-child{margin-bottom:0}

.rv{opacity:0;transform:translateY(16px);transition:opacity .75s var(--ease-out),transform .75s var(--ease-out)}
.rv.in{opacity:1;transform:none}
.no-js .rv{opacity:1;transform:none}

/* ---- footer ------------------------------------------------------------ */
.ftr{border-top:1px solid var(--line);background:linear-gradient(180deg,transparent,rgba(0,0,0,.42));
  padding:clamp(42px,6vw,68px) 0 30px;margin-top:20px}
.ftr__top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.55fr);gap:clamp(26px,5vw,54px);
  padding-bottom:30px;border-bottom:1px solid var(--line)}
.ftr__brand b{font-family:var(--f-head);font-size:1.24rem;color:var(--ink);font-weight:700;
  text-transform:uppercase;letter-spacing:.09em;display:flex;align-items:center;gap:10px}
.ftr__brand b i{font-style:normal;color:var(--lime)}
.ftr__brand p{margin-top:13px;font-size:.87rem;color:var(--muted);max-width:42ch}
.linknet__label{font-family:var(--f-mono);font-size:.63rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);margin-bottom:14px}
.linknet ul{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:9px 20px}
.linknet a{display:block;font-size:.85rem;color:var(--ink-2);text-decoration:none;padding:6px 0;
  border-bottom:1px dashed transparent;transition:color .25s var(--ease),border-color .25s var(--ease)}
.linknet a:hover{color:var(--lime);border-bottom-color:var(--line)}
.linknet small{display:block;font-family:var(--f-mono);font-size:.66rem;color:var(--muted)}
.ftr__legal{padding-top:22px;display:flex;flex-wrap:wrap;gap:12px 26px;justify-content:space-between;
  font-family:var(--f-mono);font-size:.68rem;color:var(--muted)}

/* ---- responsive -------------------------------------------------------- */
@media (max-width:1000px){
  .hero__grid{grid-template-columns:1fr;gap:28px}
  .hero h1{max-width:none}
  .ftr__top{grid-template-columns:1fr;gap:28px}
}
@media (max-width:760px){
  .pipe{grid-template-columns:1fr}
  .pipe > div{border-right:0;border-bottom:1px solid var(--line)}
  .pipe > div:last-child{border-bottom:0}
  .pipe > div::after{right:auto;left:50%;top:auto;bottom:-5px;transform:translateX(-50%) rotate(135deg)}
}
@media (max-width:600px){
  .nav{display:none}
  .split{grid-template-columns:1fr}
  .ftr__legal{flex-direction:column;gap:9px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .rv{opacity:1;transform:none}
}