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

:root{
  --ink-900:#050D18;
  --ink-800:#0A1A2B;
  --ink-700:#10283F;
  --line:#1D3A55;
  --fg:#E8F0F2;
  --fg-dim:#9AAEBE;
  --lime:#B8FF3D;
  --lime-soft:#DFFF9C;
  --orange:#FF9D4D;
  --orange-soft:#FFD0A0;
  --cyan:#6BE6FF;
  --font-display:'Barlow Condensed','Oswald','Noto Sans SC',sans-serif;
  --font-body:'Noto Sans SC','Source Han Sans SC',system-ui,sans-serif;
  --font-mono:'JetBrains Mono','Roboto Mono','DIN Alternate',monospace;
  --r-module:24px;
  --r-panel:20px;
  --r-pill:999px;
  --r-img:28px;
  --shell:1280px;
  --gap:24px;
  --ease:180ms ease;
}

body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  color:var(--fg);
  background:var(--ink-900);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.12;
  letter-spacing:.02em;
  color:var(--fg);
  text-wrap:balance;
}
:where(p,li,dd,figcaption){text-wrap:pretty;}
::selection{background:var(--lime);color:var(--ink-900);}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;}
a{text-decoration-thickness:1px;text-underline-offset:3px;}

#main-content{display:block;}
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:24px;}

.num,.data-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;letter-spacing:-.01em;}

.prose{max-width:66ch;line-height:1.85;}
.prose > * + *{margin-top:1.05em;}
.prose h2,.prose h3{margin-top:2em;line-height:1.2;}
.prose strong{color:var(--lime-soft);font-weight:700;}
.prose a{color:var(--cyan);}
.prose a:hover{color:var(--lime);}
.prose :where(ul,ol){padding-left:1.4em;list-style:revert;}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  color:var(--lime);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor;}

.plaque{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(16,40,63,.78);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--fg-dim);white-space:nowrap;
}
.plaque--lime{border-color:rgba(184,255,61,.52);color:var(--lime);background:rgba(184,255,61,.08);}
.plaque--orange{border-color:rgba(255,157,77,.52);color:var(--orange);background:rgba(255,157,77,.08);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:var(--r-pill);
  border:1px solid transparent;
  font-family:var(--font-body);font-size:14px;font-weight:700;line-height:1.2;
  text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:background-color var(--ease),border-color var(--ease),color var(--ease),transform var(--ease);
}
.btn--lime{background:var(--lime);border-color:var(--lime);color:var(--ink-900);}
.btn--lime:hover{background:var(--lime-soft);border-color:var(--lime-soft);}
.btn--lime:active{transform:translateY(1px);}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--fg);}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime);}
.btn--cmd{font-size:13px;padding:8px 15px;letter-spacing:.02em;}

.skip-link{
  position:fixed;left:16px;top:-72px;z-index:200;
  padding:10px 18px;border-radius:0 0 14px 14px;
  background:var(--lime);color:var(--ink-900);
  font-size:14px;font-weight:700;text-decoration:none;
  transition:top var(--ease);
}
.skip-link:focus{top:0;}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin:0 0 24px;padding:0;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  color:var(--fg-dim);
}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--line);}
.breadcrumb a{color:var(--fg-dim);text-decoration:none;border-bottom:1px solid transparent;transition:color var(--ease),border-color var(--ease);}
.breadcrumb a:hover{color:var(--lime);border-bottom-color:var(--lime);}
.breadcrumb [aria-current="page"]{color:var(--fg);}

.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gap);}
.span-3{grid-column:span 3;}
.span-4{grid-column:span 4;}
.span-5{grid-column:span 5;}
.span-6{grid-column:span 6;}
.span-7{grid-column:span 7;}
.span-8{grid-column:span 8;}
.span-12{grid-column:span 12;}

.figure{
  position:relative;margin:0;overflow:hidden;
  border-radius:var(--r-module);
  border:1px solid var(--line);
  background:
    linear-gradient(160deg,var(--ink-700),var(--ink-800)),
    repeating-linear-gradient(90deg,rgba(29,58,85,.55) 0 1px,transparent 1px 48px);
  background-blend-mode:normal;
}
.figure > img,.figure > picture > img{display:block;width:100%;height:100%;object-fit:cover;}
.figure--wide{aspect-ratio:16/9;}
.figure--square{aspect-ratio:1/1;}
.figure--tall{aspect-ratio:3/4;}
.figure--cut{border-radius:var(--r-img) 8px var(--r-img) 8px;}
.figure__caption{
  position:absolute;left:12px;bottom:12px;
  display:inline-block;max-width:calc(100% - 24px);
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(5,13,24,.8);
  border:1px solid var(--line);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;
  color:var(--lime-soft);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}

/* ---------- header: command bar ---------- */
.cmd-bar{
  position:sticky;top:0;z-index:80;
  background:rgba(5,13,24,.93);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.cmd-bar__inner{
  display:flex;align-items:center;gap:14px;
  min-height:66px;padding-block:9px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;
  text-decoration:none;color:var(--fg);
}
.brand__mark{
  position:relative;width:32px;height:32px;flex:0 0 auto;
  border-radius:10px;border:1px solid rgba(184,255,61,.85);
  background:linear-gradient(150deg,rgba(184,255,61,.22),rgba(184,255,61,0) 66%);
  display:grid;place-items:center;
  transition:border-color var(--ease),background-color var(--ease);
}
.brand__mark::before{
  content:"";width:11px;height:11px;border-radius:50%;
  background:var(--lime);
  box-shadow:0 0 0 3px rgba(184,255,61,.16);
}
.brand__mark::after{
  content:"";position:absolute;right:5px;bottom:5px;
  width:6px;height:1.5px;background:var(--orange);border-radius:2px;
}
.brand:hover .brand__mark{border-color:var(--lime);background-color:rgba(184,255,61,.12);}
.brand__text{display:grid;gap:1px;}
.brand__name{
  font-family:var(--font-display);font-size:17px;font-weight:800;
  line-height:1.1;letter-spacing:.04em;color:var(--fg);
}
.brand__desc{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;
  color:var(--fg-dim);line-height:1.2;
}

.nav-toggle{
  display:none;align-items:center;gap:8px;flex:0 0 auto;
  padding:8px 12px;border-radius:12px;
  border:1px solid var(--line);background:var(--ink-700);
  color:var(--fg-dim);cursor:pointer;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  transition:border-color var(--ease),color var(--ease),background-color var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime);}
.nav-toggle__bars{display:grid;gap:3px;width:16px;}
.nav-toggle__bars span{display:block;height:1.5px;background:currentColor;border-radius:2px;transition:transform var(--ease),opacity var(--ease);}
.cmd-bar[data-open] .nav-toggle{border-color:var(--lime);color:var(--lime);background:rgba(184,255,61,.1);}
.cmd-bar[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(4.5px) rotate(45deg);}
.cmd-bar[data-open] .nav-toggle__bars span:nth-child(2){opacity:0;}
.cmd-bar[data-open] .nav-toggle__bars span:nth-child(3){transform:translateY(-4.5px) rotate(-45deg);}

.site-nav{flex:1 1 auto;min-width:0;}
.site-nav__list{display:flex;align-items:center;gap:2px;}
.site-nav__link{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 10px;border-radius:10px;border:1px solid transparent;
  color:var(--fg-dim);font-size:14px;line-height:1.3;white-space:nowrap;text-decoration:none;
  transition:color var(--ease),background-color var(--ease),border-color var(--ease);
}
.site-nav__link:hover{color:var(--fg);background:var(--ink-700);border-color:var(--line);}
.site-nav__idx{font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;color:rgba(154,174,190,.7);transition:color var(--ease);}
.site-nav__link:hover .site-nav__idx{color:var(--lime);}
.site-nav__link[aria-current="page"]{
  color:var(--ink-900);font-weight:700;
  background:var(--lime);border-color:var(--lime);
}
.site-nav__link[aria-current="page"] .site-nav__idx{color:rgba(5,13,24,.55);}

.cmd-bar__meta{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto;}
.path-state{
  display:inline-flex;align-items:center;gap:8px;
  max-width:230px;overflow:hidden;white-space:nowrap;
  padding:7px 13px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(16,40,63,.72);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;
  color:var(--fg-dim);
}
.path-state::before{
  content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 0 3px rgba(184,255,61,.14);
}

.scroll-progress{position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(29,58,85,.55);pointer-events:none;}
.scroll-progress__bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--orange),var(--lime));}

/* ---------- footer ---------- */
.site-footer{
  position:relative;overflow:hidden;
  margin-top:96px;
  background:var(--ink-800);
  border-top:1px solid var(--line);
  color:var(--fg-dim);font-size:14px;
}
.site-footer::before{
  content:"";position:absolute;top:-190px;right:-150px;
  width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle,rgba(184,255,61,.11),rgba(184,255,61,0) 68%);
  pointer-events:none;
}
.site-footer::after{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(255,157,77,.55),rgba(29,58,85,0) 62%);
  pointer-events:none;
}
.site-footer > .shell{position:relative;z-index:1;}

.footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.6fr;
  gap:44px 32px;padding-block:56px 44px;
}
.footer-brand__name{
  font-family:var(--font-display);font-size:26px;font-weight:800;
  line-height:1.1;letter-spacing:.04em;color:var(--fg);margin-bottom:8px;
}
.footer-brand__line{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  color:var(--lime);margin-bottom:14px;
}
.footer-brand__note{
  font-size:13.5px;line-height:1.8;max-width:34ch;margin-bottom:22px;
  color:rgba(154,174,190,.92);
}
.footer-col{display:block;}
.footer-col__title{
  display:flex;align-items:center;gap:8px;
  margin-bottom:14px;
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--fg);
}
.footer-col__title::before{content:"";width:14px;height:1px;background:var(--lime);}
.footer-col__list{display:grid;gap:10px;}
.footer-link{
  color:var(--fg-dim);font-size:14px;text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color var(--ease),border-color var(--ease);
}
.footer-link:hover{color:var(--lime);border-bottom-color:var(--lime);}
.footer-col--contact{display:grid;gap:10px;align-content:start;}
.footer-contact__address{margin-top:2px;font-size:12.5px;color:var(--fg-dim);}
.footer-contact__note{font-size:12px;line-height:1.75;color:rgba(154,174,190,.8);}

.copy-field{
  display:flex;align-items:center;gap:10px;width:100%;
  padding:10px 12px;border-radius:12px;
  border:1px solid var(--line);background:var(--ink-700);
  color:var(--fg);cursor:pointer;text-align:left;
  transition:border-color var(--ease),background-color var(--ease);
}
.copy-field:hover{border-color:var(--lime);}
.copy-field:active{transform:translateY(1px);}
.copy-field[data-copied]{border-color:var(--lime);background:rgba(184,255,61,.1);}
.copy-field__label{
  flex:0 0 auto;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;
  color:var(--fg-dim);
}
.copy-field__value{
  flex:1 1 auto;min-width:0;
  font-family:var(--font-mono);font-size:12px;color:var(--fg);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.copy-field__hint{
  flex:0 0 auto;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.06em;
  color:var(--lime);
}
.copy-field[data-copied] .copy-field__hint{color:var(--lime-soft);}

.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-block:20px 30px;border-top:1px solid var(--line);
  font-size:12px;color:rgba(154,174,190,.85);
}
.footer-bottom__copy{margin:0;}
.footer-legal-link{
  color:var(--fg-dim);text-decoration:none;
  border-bottom:1px solid var(--line);
  transition:color var(--ease),border-color var(--ease);
}
.footer-legal-link:hover{color:var(--lime);border-bottom-color:var(--lime);}
.footer-bottom__icp{
  margin:0;font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  color:rgba(154,174,190,.7);
}

/* ---------- reveal ---------- */
.js-reveal [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .45s ease,transform .45s ease;}
.js-reveal [data-reveal].is-visible{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1240px){
  .path-state{display:none;}
}
@media (max-width:1079px){
  .cmd-bar__inner{flex-wrap:wrap;gap:10px;padding-block:10px;}
  .brand{order:1;}
  .cmd-bar__meta{order:2;margin-left:auto;}
  .nav-toggle{display:inline-flex;order:3;}
  .site-nav{
    order:4;flex:1 0 100%;display:none;
    padding:8px;border:1px solid var(--line);border-radius:18px;
    background:var(--ink-800);
  }
  .cmd-bar[data-open] .site-nav{display:block;}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:2px;}
  .site-nav__link{justify-content:flex-start;padding:12px 14px;font-size:15px;border-radius:12px;}
  .site-nav__idx{font-size:11px;}
}
@media (max-width:1023px){
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr));}
  .span-3{grid-column:span 3;}
  .span-4{grid-column:span 3;}
  .span-5{grid-column:span 6;}
  .span-6{grid-column:span 6;}
  .span-7{grid-column:span 6;}
  .span-8{grid-column:span 6;}
  .span-12{grid-column:span 6;}
  .footer-top{grid-template-columns:1fr 1fr;gap:36px 28px;}
  .footer-brand{grid-column:1 / -1;}
  .site-footer{margin-top:72px;}
}
@media (max-width:680px){
  .shell{padding-inline:18px;}
  .brand__desc{display:none;}
  .brand__name{font-size:16px;}
  .btn--cmd{font-size:12px;padding:8px 12px;}
  .nav-toggle{padding:8px 10px;}
  .nav-toggle__label{display:none;}
}
@media (max-width:639px){
  .grid-12{grid-template-columns:1fr;}
  .span-3,.span-4,.span-5,.span-6,.span-7,.span-8,.span-12{grid-column:1 / -1;}
  .footer-top{grid-template-columns:1fr;gap:32px;padding-block:44px 32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .site-footer{margin-top:56px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .js-reveal [data-reveal]{opacity:1;transform:none;}
}