:root{
  --coal:#0A0A0A;
  --coal2:#121212;
  --coal3:#181818;
  --line:#222;
  --text:#F2F2F2;
  --sub:#D1D1D1;
  --muted:#9A9A9A;

  --green:#7CFF00;
  --green2:#66D900;

  --orange:#FF8A00;
  --orange2:#FFB15C;

  --r:18px;
  --shadow: 0 18px 55px rgba(0,0,0,.55);
  --shadowSoft: 0 14px 45px rgba(0,0,0,.28);
}

*{box-sizing:border-box}
html,body{height:100%}
body.coalup{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--coal);
  color:var(--sub);
  overflow-x:hidden;
}

a{color:inherit;text-decoration:none}
button,input{font-family:inherit}

/* BG FX */
.fx-bg{position:fixed;inset:0;pointer-events:none;z-index:-1}
.fx-orb{
  position:absolute;
  width:620px;height:620px;border-radius:999px;
  filter: blur(64px);
  opacity:.55;
}
.fx-orb--a{top:-220px;right:-260px;background:rgba(124,255,0,.18)}
.fx-orb--b{bottom:-280px;left:-220px;background:rgba(255,138,0,.14)}
.fx-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 30% 25%, rgba(0,0,0,.85), transparent 55%);
  opacity:.25;
}
.fx-noise{
  position:absolute;inset:0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='220' height='220' filter='url(%23n)' opacity='.15'/%3E%3C/svg%3E");
  opacity:.12;
  mix-blend-mode:overlay;
}

/* Topbar */
.topbar{
  position:sticky;top:0;z-index:50;
  border-bottom:1px solid rgba(255,255,255,.06);
  background:rgba(10,10,10,.72);
  backdrop-filter: blur(12px);
}
.topbar__inner{
  max-width:1200px;margin:0 auto;
  padding:14px 16px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.brand{display:flex;align-items:center;gap:10px}
.brand__icon{
  height:38px;width:38px;border-radius:14px;
  background:var(--coal3);
  border:1px solid rgba(255,255,255,.09);
  display:grid;place-items:center;
  color:var(--green);font-weight:800;letter-spacing:-.04em;
}
.brand__text{color:var(--text);font-weight:700;letter-spacing:-.02em}

.topbar__nav{display:flex;align-items:center;gap:14px}
.topbar__link{
  font-size:14px;color:var(--muted);
  padding:10px 10px;border-radius:12px;
  transition:.2s ease;
}
.topbar__link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.topbar__cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 14px;border-radius:14px;
  background:var(--green);color:#000;font-weight:700;font-size:14px;
  box-shadow: 0 0 28px rgba(124,255,0,.22);
  transition:.2s ease;
}
.topbar__cta:hover{background:var(--green2)}

.topbar__menu{
  display:none;
  height:42px;width:46px;border-radius:14px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(18,18,18,.6);
  color:var(--text);
}
.topbar__menu span{
  display:block;height:2px;width:18px;margin:4px auto;background:rgba(242,242,242,.8);border-radius:999px;
}
.mnav{
  display:none;
  padding:10px 16px 16px;
  border-top:1px solid rgba(255,255,255,.06);
}
.mnav__link{
  display:block;
  padding:12px 12px;border-radius:14px;
  color:var(--muted);
  background:rgba(255,255,255,.02);
  border:1px solid rgba(255,255,255,.06);
  margin-top:8px;
}
.mnav__cta{
  display:block;margin-top:10px;
  text-align:center;
  padding:12px 12px;border-radius:14px;
  background:var(--green);color:#000;font-weight:800;
}

/* Progress */
.read-progress{position:fixed;left:0;right:0;top:0;height:3px;z-index:60}
.read-progress__bar{
  height:100%;
  width:0%;
  background:linear-gradient(90deg, rgba(124,255,0,1), rgba(255,138,0,1));
  box-shadow: 0 0 18px rgba(255,138,0,.45);
}

/* Main wrapper */
.wrap{max-width:1200px;margin:0 auto;padding:26px 16px 80px}

/* Hero */
.hero{
  display:grid;
  grid-template-columns: 1.55fr .85fr;
  gap:18px;
  align-items:stretch;
  margin-top:8px;
}
.hero__content{
  border:1px solid rgba(255,255,255,.07);
  background:rgba(18,18,18,.56);
  border-radius:28px;
  padding:22px 20px;
  box-shadow: var(--shadowSoft);
  position:relative;
  overflow:hidden;
}
.hero__content::after{
  content:"";
  position:absolute;inset:-120px -120px auto auto;
  width:520px;height:520px;border-radius:999px;
  background:radial-gradient(circle at 30% 30%, rgba(124,255,0,.18), transparent 60%);
  filter: blur(18px);
  opacity:.85;
  pointer-events:none;
}
.pill{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(24,24,24,.65);
  color:var(--muted);
  font-size:12px;
}
.pill__dot{height:8px;width:8px;border-radius:999px;background:var(--green);box-shadow:0 0 18px rgba(124,255,0,.35)}
.hero__title{
  margin:14px 0 0;
  color:var(--text);
  font-size:38px;
  letter-spacing:-.03em;
  line-height:1.08;
}
.accent{color:var(--green)}
.hero__sub{
  margin:12px 0 0;
  color:rgba(209,209,209,.92);
  line-height:1.55;
  max-width:62ch;
}

.searchbar{
  margin-top:18px;
  display:flex;align-items:center;gap:10px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(10,10,10,.55);
  padding:10px 12px;
}
.searchbar__icon{color:rgba(242,242,242,.7);font-size:16px}
.searchbar__input{
  flex:1;
  border:none;outline:none;
  background:transparent;color:var(--text);
  font-size:14px;
}
.searchbar__input::placeholder{color:rgba(154,154,154,.9)}
.searchbar__clear{
  border:none;
  background:rgba(255,138,0,.14);
  color:rgba(255,205,160,.95);
  font-weight:700;
  padding:8px 12px;
  border-radius:14px;
  cursor:pointer;
  transition:.2s ease;
}
.searchbar__clear:hover{background:rgba(255,138,0,.20)}

.chips{margin-top:12px;display:flex;flex-wrap:wrap;gap:10px}
.chip{
  border:1px solid rgba(255,255,255,.10);
  background:rgba(24,24,24,.55);
  color:rgba(209,209,209,.85);
  padding:9px 12px;
  border-radius:999px;
  cursor:pointer;
  font-size:13px;
  transition:.18s ease;
}
.chip:hover{border-color:rgba(124,255,0,.28);transform:translateY(-1px)}
.chip.is-active{
  background:rgba(124,255,0,.12);
  border-color:rgba(124,255,0,.40);
  color:var(--text);
  box-shadow: 0 0 18px rgba(124,255,0,.12);
}

.hero__stats{
  margin-top:16px;
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap:10px;
}
.stat{
  border:1px solid rgba(255,255,255,.08);
  background:rgba(18,18,18,.55);
  border-radius:18px;
  padding:12px;
}
.stat__num{color:var(--text);font-weight:800;font-size:16px;letter-spacing:-.02em}
.stat__label{color:rgba(154,154,154,.9);font-size:12px;margin-top:4px}

/* Right hero card */
.hero__card{
  border-radius:28px;
  position:relative;
}
.heroCard{
  height:100%;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(18,18,18,.48);
  border-radius:28px;
  padding:18px 16px;
  box-shadow: var(--shadowSoft);
  position:relative;
  overflow:hidden;
}
.heroCard__glow{
  position:absolute;inset:-60px -60px auto auto;
  width:420px;height:420px;border-radius:999px;
  background:radial-gradient(circle at 30% 30%, rgba(255,138,0,.18), transparent 60%);
  filter: blur(22px);
  opacity:.95;
  pointer-events:none;
}
.heroCard__title{margin:2px 0 0;color:var(--text);font-size:16px;font-weight:800}
.heroCard__text{margin:10px 0 0;color:rgba(209,209,209,.90);line-height:1.55;font-size:13px}
.kbd{
  display:inline-flex;align-items:center;justify-content:center;
  padding:2px 8px;border-radius:10px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(10,10,10,.55);
  font-weight:700;color:rgba(242,242,242,.90);
}
.heroCard__actions{margin-top:14px;display:flex;gap:10px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 14px;border-radius:16px;
  font-weight:800;font-size:13px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(24,24,24,.55);
  color:var(--text);
  transition:.2s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn--primary{
  background:var(--green);
  color:#000;
  border-color:rgba(124,255,0,.40);
  box-shadow:0 0 24px rgba(124,255,0,.18);
}
.btn--primary:hover{background:var(--green2)}
.btn--ghost:hover{border-color:rgba(124,255,0,.25)}
.btn--orange{
  background:rgba(255,138,0,.16);
  border-color:rgba(255,138,0,.38);
  box-shadow:0 0 26px rgba(255,138,0,.16);
}
.btn--orange:hover{background:rgba(255,138,0,.22)}

.miniTags{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap}
.miniTag{
  border:none;
  cursor:pointer;
  border-radius:999px;
  padding:8px 10px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  color:rgba(209,209,209,.9);
  font-size:12px;
  transition:.18s ease;
}
.miniTag:hover{border-color:rgba(255,138,0,.40);transform:translateY(-1px)}

/* Layout body */
.layout{
  margin-top:18px;
  display:grid;
  grid-template-columns: 320px 1fr;
  gap:18px;
  align-items:start;
}

/* Sidebar */
.side{position:sticky;top:78px}
.side__card{
  border:1px solid rgba(255,255,255,.07);
  background:rgba(18,18,18,.55);
  border-radius:22px;
  padding:14px;
  box-shadow: var(--shadowSoft);
}
.side__card + .side__card{margin-top:14px}
.side__card--orange{
  background:linear-gradient(180deg, rgba(255,138,0,.10), rgba(18,18,18,.50));
  border-color:rgba(255,138,0,.18);
}
.side__head{padding:4px 4px 10px}
.side__title{margin:0;color:var(--text);font-weight:900;font-size:14px}
.side__sub{margin:6px 0 0;color:rgba(154,154,154,.95);font-size:12px}

.toc{display:flex;flex-direction:column;gap:8px;padding:6px 2px 10px}
.toc__link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:16px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(10,10,10,.45);
  color:rgba(209,209,209,.88);
  font-size:13px;
  transition:.18s ease;
}
.toc__link:hover{border-color:rgba(124,255,0,.24);transform:translateY(-1px)}
.toc__link.is-active{
  border-color:rgba(124,255,0,.40);
  background:rgba(124,255,0,.10);
}
.toc__count{
  font-size:12px;
  color:rgba(242,242,242,.80);
  padding:4px 8px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(24,24,24,.55);
}
.side__footer{display:flex;flex-wrap:wrap;gap:10px;padding-top:10px}
.side__link{
  font-size:12px;color:rgba(154,154,154,.95);
  padding:8px 10px;border-radius:14px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
}
.side__link:hover{color:var(--text);border-color:rgba(255,138,0,.22)}
.side__hint{margin:10px 0 0;color:rgba(154,154,154,.95);font-size:12px;line-height:1.45}

/* Results bar */
.results{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  border:1px solid rgba(255,255,255,.07);
  background:rgba(18,18,18,.52);
  border-radius:20px;
  padding:10px 12px;
  box-shadow: var(--shadowSoft);
}
.results__left{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.results__badge{
  font-size:12px;font-weight:800;
  color:rgba(242,242,242,.92);
  padding:7px 10px;border-radius:999px;
  border:1px solid rgba(124,255,0,.25);
  background:rgba(124,255,0,.08);
}
.results__count{font-size:12px;color:rgba(154,154,154,.95)}
.results__right{display:flex;gap:10px;flex-wrap:wrap}
.results__btn{
  border:1px solid rgba(255,255,255,.09);
  background:rgba(10,10,10,.45);
  color:rgba(242,242,242,.88);
  padding:9px 10px;
  border-radius:14px;
  cursor:pointer;
  font-size:12px;
  transition:.18s ease;
}
.results__btn:hover{border-color:rgba(255,138,0,.25);transform:translateY(-1px)}

/* FAQ sections */
.faq{margin-top:14px;display:flex;flex-direction:column;gap:14px}
.faqSection{
  border:1px solid rgba(255,255,255,.07);
  background:rgba(18,18,18,.50);
  border-radius:24px;
  padding:16px;
  box-shadow: var(--shadowSoft);
}
.faqSection__head{padding:4px 4px 12px}
.faqSection__title{
  margin:0;
  color:var(--text);
  font-size:18px;
  font-weight:900;
  letter-spacing:-.02em;
}
.faqSection__desc{margin:7px 0 0;color:rgba(154,154,154,.95);font-size:13px;line-height:1.45}
.faqList{display:flex;flex-direction:column;gap:10px}

/* Accordion item */
.faqItem{
  border:1px solid rgba(255,255,255,.08);
  background:rgba(10,10,10,.42);
  border-radius:18px;
  overflow:hidden;
  transition:.18s ease;
}
.faqItem:hover{border-color:rgba(124,255,0,.16)}
.faqItem.is-open{border-color:rgba(255,138,0,.25);box-shadow:0 0 0 1px rgba(255,138,0,.10) inset}
.faqItem__q{
  width:100%;
  border:none;
  background:transparent;
  color:var(--text);
  padding:14px 14px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  cursor:pointer;
  text-align:left;
}
.faqItem__qtext{font-weight:800;font-size:14px;letter-spacing:-.01em}
.faqItem__icon{
  height:34px;width:34px;border-radius:14px;
  display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
  color:rgba(242,242,242,.9);
  transition:.18s ease;
  flex:0 0 auto;
}
.faqItem.is-open .faqItem__icon{
  transform:rotate(45deg);
  border-color:rgba(255,138,0,.28);
  box-shadow:0 0 18px rgba(255,138,0,.15);
}

.faqItem__a{
  padding:0 14px 14px;
  color:rgba(209,209,209,.92);
  font-size:13px;
  line-height:1.65;
}
.faqItem__a p{margin:10px 0 0}
.faqItem__a p:first-child{margin-top:6px}

.steps{
  margin:10px 0 0;
  padding-left:18px;
}
.steps li{margin:6px 0}
.bullets{margin:10px 0 0;padding-left:18px}
.bullets li{margin:6px 0}
.note{
  margin-top:10px;
  padding:10px 12px;
  border-radius:16px;
  border:1px solid rgba(255,138,0,.20);
  background:rgba(255,138,0,.08);
  color:rgba(255,219,186,.95);
}

/* Highlight */
mark{
  background:rgba(255,138,0,.28);
  color:rgba(255,240,225,.98);
  padding:0 .18em;
  border-radius:.4em;
}

/* CTA */
.cta{margin-top:14px}
.cta__card{
  border-radius:26px;
  border:1px solid rgba(255,138,0,.20);
  background:linear-gradient(180deg, rgba(255,138,0,.09), rgba(18,18,18,.55));
  padding:18px 16px;
  box-shadow: var(--shadow);
  position:relative;
  overflow:hidden;
}
.cta__glow{
  position:absolute;inset:-80px auto auto -90px;
  width:520px;height:520px;border-radius:999px;
  background:radial-gradient(circle at 30% 30%, rgba(255,138,0,.20), transparent 60%);
  filter: blur(22px);
  opacity:.9;
  pointer-events:none;
}
.cta__title{margin:0;color:var(--text);font-weight:900;font-size:20px;letter-spacing:-.02em}
.cta__text{margin:10px 0 0;color:rgba(209,209,209,.92);line-height:1.55;font-size:13px;max-width:80ch}
.cta__actions{margin-top:14px;display:flex;gap:10px;flex-wrap:wrap}

/* Responsive */
@media (max-width: 980px){
  .hero{grid-template-columns:1fr;gap:12px}
  .layout{grid-template-columns:1fr}
  .side{position:relative;top:auto}
}
@media (max-width: 720px){
  .topbar__nav{display:none}
  .topbar__menu{display:inline-block}
  .wrap{padding:18px 14px 70px}
  .hero__title{font-size:30px}
  .hero__stats{grid-template-columns:1fr;gap:10px}
  .results{flex-direction:column;align-items:flex-start}
}