/* ===== 1. Reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:10rem}
body,h1,h2,h3,h4,h5,p,ul,ol,li,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;padding:0;cursor:pointer}
img,svg,video{display:block;max-width:100%}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:3px}

/* ===== 2. Tokens ===== */
:root{
  --ink:#0B1F17;
  --char:#101312;
  --paper:#F2E9D8;
  --paper-2:#D9CDB6;
  --ink-text:#1B211E;
  --lime:#C6F24E;
  --lime-d:#8FBF1F;
  --heat-a:#FF5A2B;
  --heat-b:#FFC53D;
  --grey:#7C8B94;
  --glass:#1E3B31;
  --net:#A8B4AE;
  --line:rgba(168,180,174,.22);
  --line-strong:rgba(168,180,174,.44);
  --radius:10px;
  --radius-sm:6px;
  --shell:1240px;
  --gutter:clamp(1rem,4vw,2.5rem);
  --font-display:"Oswald","Arial Narrow","Helvetica Neue",system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --fs-12:clamp(.72rem,.70rem + .10vw,.78rem);
  --fs-14:clamp(.80rem,.78rem + .12vw,.88rem);
  --fs-16:clamp(.92rem,.90rem + .15vw,1rem);
  --fs-20:clamp(1.05rem,1rem + .50vw,1.25rem);
  --fs-28:clamp(1.30rem,1.10rem + 1.20vw,1.75rem);
  --fs-40:clamp(1.70rem,1.30rem + 2.40vw,2.50rem);
  --fs-64:clamp(2.40rem,1.60rem + 4.60vw,4rem);
  --fs-96:clamp(3rem,1.80rem + 7vw,6rem);
}

/* ===== 3. Base ===== */
body{
  min-height:100%;
  background-color:var(--ink);
  background-image:
    repeating-linear-gradient(112deg,rgba(198,242,78,.022) 0 3px,transparent 3px 28px),
    repeating-linear-gradient(112deg,rgba(0,0,0,.30) 0 62px,transparent 62px 124px);
  background-attachment:fixed;
  color:var(--paper-2);
  font-family:var(--font-body);
  font-size:var(--fs-16);
  line-height:1.8;
  letter-spacing:.01em;
}
h1,h2,h3{font-family:var(--font-display);color:var(--paper);line-height:1.1}
p{max-width:38em}
::selection{background:var(--lime);color:var(--ink)}

/* ===== 4. Layout primitives ===== */
.container{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(2rem,5vw,3.6rem)}
.grid{display:grid;gap:clamp(1rem,2.6vw,1.8rem)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(170px,.62fr) minmax(0,1.9fr)}
.stack{display:flex;flex-direction:column;gap:clamp(.7rem,1.6vw,1.1rem)}
.rail--sticky{position:sticky;top:10rem}
.rule{height:1px;border:0;background:var(--line);margin-block:clamp(1rem,3vw,1.8rem)}

/* ===== 5. Panels & text ===== */
.panel{
  position:relative;
  padding:clamp(1.1rem,3vw,2.2rem);
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--char);
  color:var(--paper-2);
}
.panel--paper{
  background:var(--paper);
  color:var(--ink-text);
  border-color:rgba(27,33,30,.16);
  box-shadow:0 34px 64px -44px rgba(0,0,0,.95);
}
.panel--paper h1,.panel--paper h2,.panel--paper h3{color:var(--ink-text)}
.panel--glass{
  background:linear-gradient(150deg,rgba(30,59,49,.74),rgba(30,59,49,.26));
  backdrop-filter:blur(10px) saturate(130%);
  border-color:rgba(198,242,78,.22);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--font-display);font-weight:700;
  font-size:var(--fs-12);letter-spacing:.30em;text-transform:uppercase;
  color:var(--lime);
}
.eyebrow::before{content:"";width:1.6rem;height:2px;background:linear-gradient(90deg,var(--lime),var(--heat-b))}
.section-title{
  font-size:var(--fs-40);
  font-weight:800;letter-spacing:.01em;text-transform:uppercase;
  color:var(--paper);
}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.02em}

/* ===== 6. Buttons / chips / tags ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.4rem;
  padding:.62rem 1.1rem;border:1px solid transparent;border-radius:var(--radius-sm);
  font-family:var(--font-display);font-weight:700;
  font-size:var(--fs-14);letter-spacing:.10em;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn--cta{background:var(--lime);color:var(--ink)}
.btn--cta:hover{background:var(--paper);color:var(--ink)}
.btn--ghost{border-color:rgba(198,242,78,.5);color:var(--lime)}
.btn--ghost:hover{background:rgba(198,242,78,.12);border-color:var(--lime)}
.btn--heat{background:linear-gradient(120deg,var(--heat-a),var(--heat-b));color:#2A1000}
.chip{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.42rem .78rem;border:1px solid var(--line-strong);border-radius:999px;
  font-size:var(--fs-12);letter-spacing:.08em;color:var(--paper-2);
  transition:color .25s ease,border-color .25s ease,background-color .25s ease;
}
.chip:hover{color:var(--lime);border-color:var(--lime);background:rgba(198,242,78,.08)}
.tag{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.24rem .62rem;border:1px solid var(--line-strong);border-radius:999px;
  font-size:var(--fs-12);letter-spacing:.08em;color:var(--paper-2);
}
.tag--lime{background:rgba(198,242,78,.14);border-color:rgba(198,242,78,.5);color:var(--lime)}
.tag--heat{background:linear-gradient(120deg,var(--heat-a),var(--heat-b));border-color:transparent;color:#2A1000}

/* ===== 7. Breadcrumb ===== */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;font-size:var(--fs-12);letter-spacing:.08em;color:var(--grey)}
.breadcrumb li{display:flex;align-items:center}
.breadcrumb li+li::before{content:"/";margin:0 .55rem;color:rgba(168,180,174,.5)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb [aria-current="page"]{color:var(--paper-2)}

/* ===== 8. Media frames ===== */
.media-figure{display:flex;flex-direction:column;gap:.55rem;margin:0}
.media{
  position:relative;overflow:hidden;border-radius:var(--radius);border:1px solid var(--line);
  background-color:var(--char);
  background-image:
    linear-gradient(150deg,rgba(30,59,49,.85),rgba(11,31,23,.95)),
    repeating-linear-gradient(90deg,rgba(168,180,174,.10) 0 1px,transparent 1px 24px),
    repeating-linear-gradient(0deg,rgba(168,180,174,.10) 0 1px,transparent 1px 24px);
}
.media>img,.media>svg,.media>picture>img{width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:21/9}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media__caption{font-size:var(--fs-12);color:var(--grey)}

/* ===== 9. Skip link ===== */
.skip-link{
  position:absolute;left:50%;top:-4rem;z-index:120;
  transform:translateX(-50%);
  padding:.6rem 1rem;border-radius:0 0 var(--radius-sm) var(--radius-sm);
  background:var(--lime);color:var(--ink);
  font-family:var(--font-display);font-weight:700;font-size:var(--fs-14);letter-spacing:.08em;
  transition:top .2s ease;
}
.skip-link:focus{top:0}

/* ===== 10. Header ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(11,31,23,.97),rgba(11,31,23,.88));
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 22px 44px -36px rgba(0,0,0,.95);
}
.scroll-progress{
  position:absolute;left:0;bottom:-1px;width:100%;height:3px;z-index:2;
  transform:scaleX(var(--progress,0));transform-origin:left center;
  background:linear-gradient(90deg,var(--lime),var(--heat-b),var(--heat-a));
  pointer-events:none;
}
.header-bar{padding-block:clamp(.7rem,1.6vw,1.15rem);transition:padding .3s ease}
.masthead-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;
  gap:1rem;
}
.masthead__meta{
  grid-column:1;justify-self:start;
  font-size:var(--fs-12);letter-spacing:.22em;color:var(--grey);
  white-space:nowrap;
}
.masthead{grid-column:2;text-align:center}
.brand{display:inline-flex;align-items:center;gap:.55rem}
.brand__mark{
  display:grid;place-items:center;
  width:2.2rem;height:2.2rem;border-radius:8px;
  background:linear-gradient(150deg,var(--lime),var(--lime-d));
  color:var(--ink);font-family:var(--font-mono);font-weight:700;font-size:.85rem;letter-spacing:-.05em;
  transition:width .3s ease,height .3s ease;
}
.brand__name{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(1.05rem,2.2vw,1.6rem);
  letter-spacing:.14em;color:var(--paper);
}
.masthead__tagline{
  margin-top:.35rem;
  font-size:var(--fs-12);letter-spacing:.30em;color:var(--grey);
  transition:opacity .25s ease;
}
.header-utilities{grid-column:3;justify-self:end;display:flex;align-items:center;gap:.5rem}
.site-header[data-scrolled] .header-bar{padding-block:.5rem}
.site-header[data-scrolled] .masthead__tagline{display:none}
.site-header[data-scrolled] .brand__mark{width:1.85rem;height:1.85rem}

.nav-toggle{
  display:none;position:relative;
  grid-column:3;justify-self:end;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  width:2.7rem;height:2.7rem;
  border:1px solid var(--line-strong);border-radius:8px;color:var(--lime);
}
.nav-toggle__bar{display:block;width:1.1rem;height:2px;background:currentColor;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle__label{
  position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

.primary-nav{border-top:1px solid rgba(168,180,174,.14);background:rgba(16,19,18,.45)}
.nav-list{
  display:flex;flex-wrap:wrap;justify-content:center;
  gap:clamp(.4rem,2vw,1.7rem);
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding:.5rem var(--gutter) .7rem;
}
.nav-list a{
  position:relative;display:inline-block;padding:.35rem .15rem;
  font-family:var(--font-display);font-weight:600;
  font-size:var(--fs-14);letter-spacing:.16em;color:var(--paper-2);
  transition:color .25s ease;
}
.nav-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,var(--heat-a),var(--lime));
  transform:scaleX(0);transform-origin:left center;
  transition:transform .28s ease;
}
.nav-list a:hover{color:var(--lime)}
.nav-list a:hover::after{transform:scaleX(1)}
.nav-list a[aria-current="page"]{color:var(--lime)}
.nav-list a[aria-current="page"]::after{transform:scaleX(1)}
.nav-aside{display:none}

/* ===== 11. Footer ===== */
.site-footer{
  position:relative;overflow:hidden;
  margin-top:clamp(3rem,8vw,6rem);
  background:var(--char);
  border-top:1px solid rgba(198,242,78,.28);
  color:var(--paper-2);
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:
    repeating-linear-gradient(90deg,rgba(168,180,174,.07) 0 1px,transparent 1px 26px),
    repeating-linear-gradient(0deg,rgba(168,180,174,.07) 0 1px,transparent 1px 26px);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 72%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 72%);
}
.footer-inner{position:relative;z-index:1;padding-block:clamp(2.4rem,6vw,4.2rem) 1.4rem}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr repeat(3,minmax(0,1fr));
  gap:clamp(1.4rem,3vw,2.6rem);
}
.brand--footer{margin-bottom:.9rem}
.footer-brand__note{max-width:30em;font-size:var(--fs-14);color:var(--paper-2)}
.footer-cert{
  margin-top:.9rem;display:inline-flex;align-items:center;gap:.5rem;
  padding:.34rem .7rem;border-radius:999px;
  border:1px dashed rgba(198,242,78,.45);
  font-size:var(--fs-12);letter-spacing:.06em;color:var(--lime);
}
.footer-col__title{
  margin-bottom:1rem;
  font-size:var(--fs-12);font-weight:700;letter-spacing:.24em;text-transform:uppercase;
  color:var(--lime);
}
.footer-list{display:flex;flex-direction:column;gap:.55rem}
.footer-list a{
  font-size:var(--fs-14);color:var(--paper-2);
  border-bottom:1px solid transparent;padding-bottom:1px;
  transition:color .25s ease,border-color .25s ease;
}
.footer-list a:hover{color:var(--lime);border-bottom-color:rgba(198,242,78,.5)}
.footer-contact{
  margin-top:clamp(2rem,4vw,3rem);
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:.9rem 2rem;
  padding:clamp(1.1rem,2.6vw,1.8rem);
  border:1px solid rgba(198,242,78,.26);border-radius:var(--radius);
  background:linear-gradient(140deg,rgba(30,59,49,.72),rgba(16,19,18,.45));
}
.contact-line{display:flex;flex-direction:column;gap:.2rem;max-width:none}
.contact-line__label{font-size:var(--fs-12);letter-spacing:.22em;color:var(--lime)}
.contact-line__value{font-size:var(--fs-14);color:var(--paper-2);word-break:break-word}
.footer-contact__note{grid-column:1/-1;font-size:var(--fs-12);color:var(--grey);max-width:none}
.footer-legal{
  margin-top:clamp(1.6rem,4vw,2.6rem);
  padding-top:1.1rem;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:.6rem 1.4rem;
  font-size:var(--fs-12);color:var(--grey);
}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:.4rem 1.3rem}
.footer-legal__links a:hover{color:var(--lime)}

/* ===== 12. Reveal ===== */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.3,1)}
[data-reveal][data-visible]{opacity:1;transform:none}

/* ===== 13. Responsive ===== */
@media (max-width:1080px){
  .masthead__meta{display:none}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--split{grid-template-columns:minmax(150px,.7fr) minmax(0,1.6fr)}
}
@media (max-width:900px){
  html{scroll-padding-top:7rem}
  .header-utilities{display:none}
  .nav-toggle{display:inline-flex}
  .primary-nav{
    display:none;
    border-top:1px solid var(--line);
    background:linear-gradient(180deg,rgba(16,19,18,.95),rgba(11,31,23,.99));
  }
  .site-header[data-open] .primary-nav{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;padding:.35rem var(--gutter) .8rem}
  .nav-list a{padding:.9rem .15rem;border-bottom:1px solid rgba(168,180,174,.14);font-size:var(--fs-16);letter-spacing:.12em}
  .nav-list a::after{display:none}
  .nav-list a[aria-current="page"]{border-bottom-color:rgba(198,242,78,.45)}
  .nav-aside{display:flex;flex-wrap:wrap;align-items:center;gap:.6rem;padding:0 var(--gutter) 1.2rem}
  .grid--2,.grid--split{grid-template-columns:minmax(0,1fr)}
  .rail--sticky{position:static;top:auto}
  .footer-contact{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .masthead__tagline{display:none}
  .brand__name{letter-spacing:.1em}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-contact{grid-template-columns:minmax(0,1fr)}
  .footer-legal{flex-direction:column;align-items:flex-start}
  .panel{padding:1.1rem}
}

/* ===== 14. Motion & contrast preferences ===== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-reveal]{opacity:1;transform:none}
}
@media (prefers-contrast:more){
  :root{--line:rgba(168,180,174,.55);--line-strong:rgba(168,180,174,.8);--grey:#B6C2BB}
}