:root{
  --pitch:#06140F;
  --stand:#0B241A;
  --touchline:#163E2B;
  --grass:#B8FF3D;
  --warm:#F3F0E6;
  --mist:#9EADA2;
  --amber:#FFB020;
  --hot:#E85D2A;
  --cool:#DDE7DF;
  --ink:#030A07;
  --line:rgba(221,231,223,.14);
  --line-strong:rgba(221,231,223,.30);
  --line-soft:rgba(221,231,223,.07);
  --font-display:"Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --font-editorial:"Noto Serif SC",Georgia,"Songti SC",serif;
  --shell:1240px;
  --gutter:clamp(1rem,4vw,3rem);
  --ease:cubic-bezier(.2,.6,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--pitch);
  color:var(--warm);
  font-family:var(--font-body);
  font-size:clamp(1rem,.96rem + .18vw,1.0625rem);
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--grass);outline-offset:3px}
::selection{background:var(--grass);color:var(--ink)}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{
  position:absolute;top:-100px;left:var(--gutter);z-index:120;
  display:inline-block;padding:.65rem 1rem;
  background:var(--grass);color:var(--ink);
  font-family:var(--font-mono);font-size:.8125rem;letter-spacing:.06em;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:.75rem}

/* ---------- layout primitives ---------- */
.container{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.container--narrow{max-width:760px}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(1rem,2vw,1.75rem)}
.span-4,.span-5,.span-7,.span-8,.span-12{grid-column:span 12}
@media (min-width:820px){
  .span-4{grid-column:span 4}
  .span-5{grid-column:span 5}
  .span-7{grid-column:span 7}
  .span-8{grid-column:span 8}
}
.eyebrow{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:.75rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--grass);
}
.section-index{
  display:block;
  font-family:var(--font-mono);
  font-size:clamp(2rem,4vw,3.25rem);
  font-weight:500;line-height:1;
  color:var(--amber);
  font-variant-numeric:tabular-nums;
}
.rule{display:block;height:1px;border:0;margin:0;background:var(--line)}
.tag{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.2rem .55rem;
  border:1px solid var(--line-strong);
  font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--cool);
}
.tag--amber{border-color:rgba(255,176,32,.55);color:var(--amber)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.72rem 1.15rem;
  border:1px solid var(--line-strong);
  border-radius:0;
  background:transparent;
  color:var(--warm);
  font-family:var(--font-body);font-size:.875rem;font-weight:500;letter-spacing:.03em;
  line-height:1.1;text-align:center;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn:hover{border-color:var(--grass);color:var(--grass)}
.btn--accent{background:var(--grass);border-color:var(--grass);color:var(--ink);font-weight:700}
.btn--accent:hover{background:var(--warm);border-color:var(--warm);color:var(--ink)}
.btn--ghost{border-color:var(--line-strong);color:var(--cool)}
.btn--ghost:hover{border-color:var(--amber);color:var(--amber)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header[data-scrolled="true"]{
  background:var(--stand);
  border-bottom-color:var(--line-strong);
  box-shadow:0 14px 34px rgba(3,10,7,.55);
}
.header-strip{background:rgba(3,10,7,.42);border-bottom:1px solid var(--line-soft)}
.site-header[data-scrolled="true"] .header-strip{background:rgba(3,10,7,.5)}
.header-strip__inner{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding:.4rem var(--gutter);
}
.header-strip__note,.header-strip__meta{
  display:flex;align-items:center;gap:.5rem;
  font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.1em;
  color:var(--mist);white-space:nowrap;
}
.header-strip__note::before{
  content:"";width:6px;height:6px;flex:none;background:var(--grass);
}
.header-strip__meta{color:var(--mist)}
.version-chip{
  display:inline-block;padding:.05rem .4rem;
  border:1px solid var(--line-strong);
  color:var(--amber);font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.08em;
  font-variant-numeric:tabular-nums;
}
.header-bar{border-bottom:1px solid transparent}
.site-header[data-scrolled="true"] .header-bar{border-bottom-color:transparent}
.header-bar__inner{
  display:flex;align-items:center;justify-content:space-between;gap:clamp(.75rem,2vw,1.75rem);
  min-height:64px;
}

/* brand */
.brand{display:inline-flex;align-items:center;gap:.7rem;color:var(--warm);flex:none}
.brand__mark{
  position:relative;width:34px;height:34px;flex:none;
  border:1px solid var(--line-strong);
  background:linear-gradient(158deg,var(--touchline) 0%,var(--pitch) 78%);
  transition:border-color .2s var(--ease);
}
.brand__mark::before{
  content:"";position:absolute;top:0;bottom:0;left:50%;width:1px;
  background:var(--line-strong);
}
.brand__mark::after{
  content:"";position:absolute;top:50%;left:50%;width:12px;height:12px;
  transform:translate(-50%,-50%);
  border:1px solid var(--grass);border-radius:50%;
  transition:border-color .2s var(--ease);
}
.brand:hover .brand__mark{border-color:var(--grass)}
.brand:hover .brand__mark::after{border-color:var(--amber)}
.brand__text{display:block}
.brand__name{
  display:block;
  font-family:var(--font-display);font-weight:900;
  font-size:1.125rem;line-height:1.1;letter-spacing:-.02em;
}
.brand__tagline{
  display:block;margin-top:.18rem;
  font-family:var(--font-mono);font-size:.625rem;letter-spacing:.22em;
  color:var(--mist);
}
.brand--footer .brand__mark{width:40px;height:40px}
.brand--footer .brand__name{font-size:1.3rem}

/* nav toggle */
.nav-toggle{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.55rem .7rem;
  border:1px solid var(--line-strong);
  color:var(--warm);
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.12em;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--grass);color:var(--grass)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:10px}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;right:0;height:1px;background:currentColor;
  transition:transform .22s var(--ease),top .22s var(--ease),opacity .22s var(--ease);
}
.nav-toggle__bars::before{top:1px}
.nav-toggle__bars::after{top:8px}
.site-header[data-open="true"] .nav-toggle{border-color:var(--grass);color:var(--grass)}
.site-header[data-open="true"] .nav-toggle__bars::before{top:5px;transform:rotate(45deg)}
.site-header[data-open="true"] .nav-toggle__bars::after{top:5px;transform:rotate(-45deg)}

/* primary nav */
.primary-nav{display:flex;align-items:center;gap:clamp(.5rem,1.6vw,1.25rem)}
.primary-nav__list{display:flex;align-items:center;gap:clamp(.6rem,1.5vw,1.4rem)}
.primary-nav__link{
  position:relative;display:inline-block;
  padding:.45rem .1rem;
  color:var(--mist);
  font-size:.9375rem;font-weight:500;letter-spacing:.01em;white-space:nowrap;
  transition:color .2s var(--ease);
}
.primary-nav__link:hover{color:var(--warm)}
.primary-nav__link[aria-current="page"]{color:var(--warm)}
.primary-nav__link[aria-current="page"]::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;background:var(--grass);
}
.primary-nav__cta{white-space:nowrap;padding:.62rem 1rem;font-size:.8125rem}

/* scroll meter */
.scroll-meter{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:transparent;pointer-events:none;
}
.scroll-meter__bar{
  display:block;width:100%;height:100%;
  background:linear-gradient(90deg,var(--grass) 0%,var(--amber) 70%,var(--hot) 100%);
  transform:scaleX(var(--progress,0));
  transform-origin:0 50%;
  transition:transform .12s linear;
}

/* mobile / tablet nav */
@media (max-width:959px){
  .header-strip__meta{display:none}
  .header-strip__inner{padding-block:.35rem}
  .primary-nav{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;
    padding:0 var(--gutter);
    background:var(--stand);
    border-bottom:1px solid var(--line);
    border-top:1px solid var(--line);
    max-height:0;opacity:0;visibility:hidden;overflow:hidden;
    transition:max-height .3s var(--ease),opacity .2s var(--ease),visibility .3s var(--ease),padding .3s var(--ease);
  }
  .site-header[data-open="true"] .primary-nav{
    max-height:80vh;overflow-y:auto;
    padding:1rem var(--gutter) 1.5rem;
    opacity:1;visibility:visible;
  }
  .primary-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .primary-nav__item + .primary-nav__item{border-top:1px solid var(--line-soft)}
  .primary-nav__link{
    display:block;padding:.9rem 0;
    font-size:1.0625rem;color:var(--warm);
  }
  .primary-nav__link[aria-current="page"]{color:var(--grass)}
  .primary-nav__link[aria-current="page"]::after{left:0;right:auto;width:14px;bottom:.55rem;height:2px}
  .primary-nav__cta{width:100%;margin-top:1rem;padding:.85rem 1rem}
}
@media (min-width:960px){
  .nav-toggle{display:none}
}

/* ---------- footer ---------- */
.site-footer{
  margin-top:clamp(3.5rem,8vw,7rem);
  background:var(--stand);
  border-top:1px solid var(--line-strong);
  color:var(--warm);
}
.footer-top{padding-block:clamp(2.25rem,5vw,3.75rem)}
.footer-top__inner{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:clamp(1.75rem,4vw,3rem);
}
@media (min-width:900px){
  .footer-top__inner{grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:clamp(2rem,4vw,4rem)}
}
.footer-brand__summary{
  margin-top:1.1rem;
  max-width:34ch;
  font-size:.9375rem;line-height:1.8;color:var(--cool);
}
.footer-brand__path{
  margin-top:1.4rem;padding-left:.85rem;
  border-left:2px solid var(--grass);
}
.footer-brand__path-label{
  display:block;
  font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--grass);
}
.footer-brand__path p{
  margin-top:.35rem;
  font-size:.8125rem;line-height:1.7;color:var(--mist);
  max-width:38ch;
}
.footer-nav{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(1.25rem,3vw,2rem);
}
@media (min-width:640px){
  .footer-nav{grid-template-columns:repeat(4,minmax(0,1fr))}
}
.footer-nav__title{
  font-family:var(--font-mono);font-size:.6875rem;font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;
  color:var(--mist);
  padding-bottom:.6rem;border-bottom:1px solid var(--line);
}
.footer-nav__list{margin-top:.75rem;display:grid;gap:.5rem}
.footer-nav__link{
  display:inline-block;
  font-size:.9375rem;color:var(--warm);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer-nav__link:hover{color:var(--grass);border-bottom-color:var(--grass)}
.footer-contact{background:var(--pitch);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.footer-contact__inner{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:.85rem 2rem;
  padding-block:1.35rem;
}
@media (min-width:720px){
  .footer-contact__inner{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1040px){
  .footer-contact__inner{grid-template-columns:repeat(4,minmax(0,1fr));align-items:baseline}
}
.footer-contact__item{display:flex;flex-direction:column;gap:.2rem;min-width:0}
.footer-contact__label{
  font-family:var(--font-mono);font-size:.625rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--mist);
}
.footer-contact__value{
  font-family:var(--font-mono);font-size:.8125rem;letter-spacing:.01em;
  color:var(--warm);word-break:break-word;font-variant-numeric:tabular-nums;
}
.footer-legal{background:var(--ink)}
.footer-legal__inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:.6rem 1.5rem;
  padding-block:1rem;
}
.footer-legal__copy,.footer-legal__icp{
  font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.1em;
  color:var(--mist);font-variant-numeric:tabular-nums;
}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:.4rem 1.15rem}
.footer-legal__link{
  font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.1em;
  color:var(--mist);
  transition:color .2s var(--ease);
}
.footer-legal__link:hover{color:var(--grass)}

/* ---------- breadcrumb ---------- */
.breadcrumb{padding-block:clamp(1rem,2vw,1.5rem)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:.35rem .15rem}
.breadcrumb__item{
  display:inline-flex;align-items:center;
  font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--mist);
}
.breadcrumb__item + .breadcrumb__item::before{
  content:"/";margin:0 .5rem 0 .2rem;color:var(--line-strong);
}
.breadcrumb__link{color:var(--mist);transition:color .2s var(--ease)}
.breadcrumb__link:hover{color:var(--grass)}
.breadcrumb__item[aria-current="page"]{color:var(--warm)}

/* ---------- media frame ---------- */
.media-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;
  background:linear-gradient(165deg,var(--touchline) 0%,var(--pitch) 100%);
  border:1px solid var(--line);
}
.media-frame img,.media-frame video{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.92) contrast(1.04);
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(3,10,7,.08) 0%,rgba(3,10,7,.72) 100%);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame__tag{
  position:absolute;top:.75rem;left:.75rem;z-index:2;
  padding:.2rem .55rem;
  background:rgba(3,10,7,.72);
  border:1px solid rgba(184,255,61,.5);
  font-family:var(--font-mono);font-size:.625rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--grass);
}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  margin:0;padding:.85rem 1rem;
  font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.06em;
  color:var(--cool);
}

/* ---------- reveal ---------- */
.reveal-ready{opacity:0;transform:translateY(14px)}
.reveal-ready.is-visible{
  opacity:1;transform:none;
  transition:opacity .5s var(--ease) var(--reveal-delay,0ms),transform .5s var(--ease) var(--reveal-delay,0ms);
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal-ready{opacity:1 !important;transform:none !important}
  .scroll-meter__bar{transition:none !important}
}