:root{
  --ink:#071C16;
  --coal:#0F1512;
  --paper:#F4E9D8;
  --cyan:#35F2D0;
  --orange:#FF7A2F;
  --silver:#C9D3D0;
  --pine:#12362B;
  --mist:#D8CDBD;
  --night:#050A09;
  --red:#FF4D5E;
  --ink-text:#111A16;
  --edge:rgba(201,211,208,.22);
  --edge-strong:rgba(201,211,208,.42);
  --radius-lg:32px;
  --radius-md:20px;
  --radius-sm:12px;
  --pill:999px;
  --wrap:1240px;
  --font-display:"Arial Narrow","Helvetica Neue",Arial,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono","SFMono-Regular",Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(1200px 620px at 82% -8%, rgba(53,242,208,.10), transparent 62%),
    radial-gradient(900px 520px at 6% 12%, rgba(255,122,47,.07), transparent 60%);
  z-index:0;
}
img,svg,video{max-width:100%;height:auto;display:block;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
address{font-style:normal;}
::selection{background:var(--cyan);color:var(--ink);}

.container{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,44px);
  position:relative;
  z-index:1;
}
.section{padding-block:clamp(48px,7vw,96px);position:relative;}
.section-head{display:flex;flex-direction:column;gap:10px;margin-bottom:clamp(24px,3vw,40px);}
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:26px;height:2px;
  background:var(--orange);
  display:inline-block;
}
.lede{color:var(--silver);max-width:38em;}
.skip-link{
  position:absolute;
  left:16px;top:-64px;
  z-index:120;
  background:var(--cyan);
  color:var(--ink);
  padding:12px 20px;
  border-radius:var(--pill);
  font-weight:700;
  transition:top .18s ease;
}
.skip-link:focus-visible{top:12px;}

/* ---------- HEADER ---------- */
.site-header{
  position:relative;
  background:
    linear-gradient(180deg,rgba(5,10,9,.94),rgba(7,28,22,.94));
  border-bottom:1px solid var(--edge);
  padding-top:clamp(20px,3vw,34px);
  overflow:visible;
  z-index:60;
}
.site-header::after{
  content:"";
  display:block;
  height:2px;
  margin-top:clamp(18px,2.4vw,28px);
  background:linear-gradient(90deg,transparent,var(--cyan) 18%,var(--silver) 50%,var(--orange) 82%,transparent);
  opacity:.7;
}
.header-inner{padding-bottom:clamp(18px,2.4vw,28px);}
.masthead{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:6px;
  text-align:center;
}
.masthead__kicker{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.3em;
  color:var(--silver);
  text-transform:uppercase;
}
.masthead__brand{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(38px,7.4vw,74px);
  line-height:.98;
  letter-spacing:-.035em;
  color:var(--paper);
  display:inline-block;
  padding-inline:6px;
  transition:color .18s ease,text-shadow .18s ease;
}
.masthead__brand:hover,.masthead__brand:focus-visible{
  color:var(--cyan);
  text-shadow:0 0 26px rgba(53,242,208,.32);
}
.masthead__strapline{
  font-size:12.5px;
  letter-spacing:.18em;
  color:var(--silver);
}
.nav-bar{
  margin-top:clamp(16px,2vw,24px);
  border-top:1px solid var(--edge);
  border-bottom:1px solid var(--edge);
  padding-block:8px;
}
.nav-list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  align-items:center;
  gap:4px 8px;
}
.nav-link{
  display:inline-block;
  padding:8px 16px;
  border-radius:var(--pill);
  font-size:14.5px;
  font-weight:600;
  color:var(--silver);
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.nav-link:hover{background:var(--pine);color:var(--paper);border-color:var(--edge-strong);}
.nav-link[aria-current="page"]{
  background:var(--paper);
  color:var(--ink-text);
  border-color:var(--paper);
  box-shadow:0 0 0 2px rgba(53,242,208,.35);
}
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  margin-inline:auto;
  padding:9px 20px;
  border-radius:var(--pill);
  border:1px solid var(--edge-strong);
  color:var(--paper);
  font-size:14px;
  font-weight:700;
  letter-spacing:.08em;
  background:var(--coal);
}
.nav-toggle__bars{
  width:18px;height:2px;
  background:var(--cyan);
  display:block;
  position:relative;
}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--cyan);
}
.nav-toggle__bars::before{top:-6px;}
.nav-toggle__bars::after{top:6px;}
.quick-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:8px;
  margin-top:14px;
}
.quick-bar__label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.22em;
  color:var(--silver);
  text-transform:uppercase;
  margin-right:4px;
}
.quick-chip{
  display:inline-block;
  padding:6px 14px;
  border-radius:var(--pill);
  background:rgba(53,242,208,.08);
  border:1px solid rgba(53,242,208,.34);
  color:var(--cyan);
  font-size:13px;
  font-weight:600;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.quick-chip:hover{background:var(--cyan);color:var(--ink);transform:translateY(-1px);}
.path-gate{
  display:none;
  position:fixed;
  right:18px;
  top:50%;
  transform:translateY(-50%);
  z-index:70;
  width:168px;
  padding:16px 14px;
  border-radius:var(--radius-md);
  background:rgba(5,10,9,.92);
  border:1px solid var(--edge-strong);
  box-shadow:0 18px 44px rgba(0,0,0,.5);
  backdrop-filter:blur(6px);
}
.path-gate__title{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.24em;
  color:var(--silver);
  margin-bottom:10px;
  text-transform:uppercase;
}
.path-gate__link{
  display:flex;
  align-items:center;
  gap:10px;
  padding:8px 4px;
  font-size:14px;
  font-weight:600;
  color:var(--paper);
  border-bottom:1px dashed rgba(201,211,208,.18);
  transition:color .18s ease,padding-left .18s ease;
}
.path-gate__link:last-child{border-bottom:0;}
.path-gate__link:hover{color:var(--cyan);padding-left:8px;}
.path-gate__tilt{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--ink);
  background:var(--orange);
  padding:1px 7px;
  transform:skewX(-12deg);
  border-radius:3px;
  display:inline-block;
}

/* ---------- FOOTER ---------- */
.site-footer{
  background:linear-gradient(180deg,var(--coal),var(--night));
  border-top:1px solid var(--edge);
  margin-top:clamp(40px,6vw,80px);
  padding-block:clamp(40px,6vw,72px) 28px;
  position:relative;
  z-index:1;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:3px;
  background:linear-gradient(90deg,var(--orange),var(--cyan) 42%,transparent 88%);
}
.footer-top{
  display:grid;
  grid-template-columns:1.1fr 2fr;
  gap:clamp(28px,4vw,56px);
  align-items:start;
}
.footer-brand__mark{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(30px,4vw,44px);
  letter-spacing:-.03em;
  color:var(--paper);
  line-height:1.05;
}
.footer-brand__note{
  margin-top:12px;
  color:var(--silver);
  font-size:15px;
  max-width:30em;
}
.footer-brand .btn{margin-top:20px;}
.footer-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(18px,2.6vw,34px);
}
.footer-col__heading{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan);
  padding-bottom:10px;
  margin-bottom:12px;
  border-bottom:1px solid var(--edge);
}
.footer-col__list{display:flex;flex-direction:column;gap:8px;}
.footer-link{
  color:var(--silver);
  font-size:14.5px;
  display:inline-block;
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
  word-break:break-word;
}
.footer-link:hover,.footer-link:focus-visible{color:var(--cyan);border-color:rgba(53,242,208,.5);}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:14.5px;color:var(--silver);}
.footer-contact__line{display:block;}
.footer-contact__note{
  margin-top:12px;
  font-size:12.5px;
  line-height:1.7;
  color:rgba(201,211,208,.72);
  max-width:30em;
}
.footer-legal{
  margin-top:clamp(28px,4vw,44px);
  padding-top:18px;
  border-top:1px solid var(--edge);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 22px;
  font-size:12.5px;
  color:rgba(201,211,208,.78);
}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:14px;}
.footer-legal__links .footer-link{font-size:12.5px;}

/* ---------- SHARED UI ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 24px;
  border-radius:var(--pill);
  font-weight:700;
  font-size:15px;
  letter-spacing:.02em;
  border:1px solid transparent;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{transform:translateY(-2px);}
.btn--solid{background:var(--orange);color:var(--ink-text);}
.btn--solid:hover{background:#ff8f52;}
.btn--ghost{border-color:var(--edge-strong);color:var(--paper);background:rgba(53,242,208,.05);}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);}
.btn--tilt{
  background:var(--orange);
  color:var(--ink-text);
  clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%);
  border-radius:2px;
}
.btn--tilt:hover{background:var(--cyan);}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:var(--silver);
  margin-bottom:clamp(18px,2.4vw,28px);
}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb__item + .breadcrumb__item::before{
  content:"/";
  color:rgba(201,211,208,.5);
}
.breadcrumb__item[aria-current="page"]{color:var(--cyan);}

.grid{display:grid;gap:clamp(18px,2.4vw,30px);}
.grid--7-5{grid-template-columns:7fr 5fr;}
.grid--8-4{grid-template-columns:8fr 4fr;}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}

.paper-panel{
  background:var(--paper);
  color:var(--ink-text);
  border-radius:var(--radius-lg);
  padding:clamp(22px,3vw,40px);
  position:relative;
  overflow:hidden;
}
.paper-panel::after{
  content:"";
  position:absolute;
  right:-40px;top:-40px;
  width:180px;height:180px;
  border-radius:50%;
  border:2px dashed rgba(17,26,22,.14);
  pointer-events:none;
}
.paper-panel .eyebrow{color:#0a6b56;}
.paper-panel .lede{color:#3b4a43;}

.step-card{
  position:relative;
  background:var(--coal);
  border:1px solid var(--edge);
  border-radius:var(--radius-md);
  padding:clamp(18px,2.4vw,28px);
  overflow:hidden;
}
.step-card::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:4px;
  background:linear-gradient(180deg,var(--cyan),var(--orange));
}
.step-card__num{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  color:var(--orange);
  display:block;
  margin-bottom:8px;
}
.tilt-tag{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.12em;
  text-transform:uppercase;
  padding:3px 10px;
  background:var(--pine);
  color:var(--cyan);
  border:1px solid rgba(53,242,208,.32);
  border-radius:var(--radius-sm);
  transform:skewX(-10deg);
}
.score-divider{
  display:flex;
  align-items:center;
  gap:16px;
  margin-block:clamp(28px,4vw,52px);
  color:var(--silver);
}
.score-divider::before,.score-divider::after{
  content:"";
  flex:1;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--edge-strong),transparent);
}
.score-divider__label{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  padding:4px 14px;
  border:1px solid var(--edge);
  border-radius:var(--pill);
  white-space:nowrap;
}

.fold-note{
  border:1px solid var(--edge);
  border-radius:var(--radius-md);
  background:rgba(18,54,43,.4);
  padding:0 18px;
}
.fold-note__summary{
  cursor:pointer;
  padding:14px 0;
  font-weight:700;
  color:var(--paper);
  list-style:none;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
}
.fold-note__summary::-webkit-details-marker{display:none;}
.fold-note__summary::after{content:"+";color:var(--cyan);font-family:var(--font-mono);}
.fold-note[open] .fold-note__summary::after{content:"–";}
.fold-note__body{padding-bottom:16px;color:var(--silver);font-size:15px;}

.media-frame{
  position:relative;
  border-radius:var(--radius-md);
  overflow:hidden;
  background:
    linear-gradient(135deg,rgba(53,242,208,.16),rgba(255,122,47,.12)),
    var(--pine);
  border:1px solid var(--edge);
  aspect-ratio:16/10;
}
.media-frame--tall{aspect-ratio:3/4;}
.media-frame--wide{aspect-ratio:21/9;}
.media-frame img{width:100%;height:100%;object-fit:cover;}

.tab-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.tab-button{
  padding:8px 18px;
  border-radius:var(--pill);
  border:1px solid var(--edge);
  color:var(--silver);
  font-size:14px;
  font-weight:600;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.tab-button[aria-selected="true"]{background:var(--cyan);color:var(--ink);border-color:var(--cyan);}
.tab-panel[hidden]{display:none;}

.reveal{opacity:0;transform:translateY(6px);transition:opacity .5s ease,transform .5s ease;}
.reveal.is-visible{opacity:1;transform:none;}

.to-top{
  position:fixed;
  right:18px;bottom:20px;
  z-index:80;
  width:46px;height:46px;
  border-radius:50%;
  border:1px solid var(--edge-strong);
  background:rgba(5,10,9,.9);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease,transform .2s ease;
}
.to-top.is-on{opacity:1;pointer-events:auto;}
.to-top:hover{transform:translateY(-2px);}

:focus-visible{
  outline:3px solid var(--cyan);
  outline-offset:3px;
  border-radius:4px;
}

/* ---------- RESPONSIVE ---------- */
@media (min-width:1080px){
  .path-gate{display:block;}
  .quick-bar{justify-content:center;}
}
@media (max-width:1079px){
  .footer-top{grid-template-columns:1fr;}
}
@media (max-width:900px){
  .grid--7-5,.grid--8-4{grid-template-columns:1fr;}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:760px){
  body{font-size:16px;}
  .nav-toggle{display:inline-flex;}
  .nav-list{
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    margin-top:10px;
    border-top:1px solid var(--edge);
    padding-top:10px;
  }
  .nav-bar[data-open] .nav-list{display:flex;}
  .nav-link{display:block;text-align:center;padding:11px 16px;}
  .quick-bar{justify-content:flex-start;overflow-x:auto;flex-wrap:nowrap;padding-bottom:6px;scrollbar-width:thin;}
  .quick-bar__label{white-space:nowrap;}
  .quick-chip{white-space:nowrap;flex:0 0 auto;}
  .masthead__strapline{font-size:11.5px;letter-spacing:.14em;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-legal{flex-direction:column;align-items:flex-start;}
  .to-top{right:14px;bottom:14px;}
}
@media (max-width:520px){
  .grid--3{grid-template-columns:1fr;}
  .paper-panel{border-radius:var(--radius-md);}
}

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