:root{
  --bg:#0B0D10;            /* deep near-black canvas */
  --bg-2:#13171C;          /* raised panel */
  --bg-3:#1B2027;          /* card surface */
  --text:#F2F5F7;          /* high-contrast off-white */
  --text-soft:#9AA6B2;     /* muted slate */
  --line:#262D36;          /* hairline on dark */
  --accent:#C6FF1A;        /* electric lime — primary */
  --accent-2:#1FA2FF;      /* electric blue — secondary */
  --accent-ink:#0B0D10;    /* text on lime */
  --max:1140px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Inter',system-ui,sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px clamp(20px,5vw,48px);
  background:rgba(11,13,16,.78);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.wordmark{
  font-family:'IBM Plex Mono',monospace;
  font-weight:500;font-size:1.05rem;letter-spacing:-.01em;
  color:var(--text);text-decoration:none;
}
.wordmark span{color:var(--accent)}
.nav{display:flex;gap:clamp(14px,3vw,32px)}
.nav a{
  color:var(--text-soft);text-decoration:none;font-size:.9rem;font-weight:500;
  transition:color .2s;
}
.nav a:hover{color:var(--accent)}
@media(max-width:640px){.nav{display:none}}

/* ---------- hero ---------- */
.hero{
  position:relative;
  min-height:82vh;
  display:flex;align-items:center;
  padding:clamp(40px,8vw,90px) clamp(20px,5vw,48px);
  /* hero background image: images/hero.jpg */
  background:
    radial-gradient(120% 90% at 80% 10%, rgba(31,162,255,.10), transparent 60%),
    url('images/hero.jpg') center/cover no-repeat,
    var(--bg);
  overflow:hidden;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,13,16,.96) 0%,rgba(11,13,16,.80) 46%,rgba(11,13,16,.34) 100%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:780px}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;
  text-transform:uppercase;letter-spacing:.2em;font-size:.74rem;
  color:var(--accent);margin-bottom:22px;
  display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{
  content:"";width:26px;height:2px;background:var(--accent);display:inline-block;
}
.hero h1{
  font-family:'Space Grotesk',sans-serif;
  font-weight:600;font-size:clamp(2.7rem,7vw,5.2rem);
  line-height:1.0;letter-spacing:-.03em;
  margin-bottom:24px;
}
.lede{
  font-size:clamp(1.05rem,2vw,1.34rem);
  color:var(--text-soft);max-width:600px;margin-bottom:34px;
}
.lede strong{color:var(--text);font-weight:600}
.cta{
  display:inline-block;
  background:var(--accent);color:var(--accent-ink);text-decoration:none;
  font-weight:700;font-size:.98rem;letter-spacing:-.01em;
  padding:15px 32px;border-radius:2px;
  transition:box-shadow .2s,transform .2s;
}
.cta:hover{transform:translateY(-2px);box-shadow:0 0 0 3px rgba(198,255,26,.25),0 12px 30px rgba(198,255,26,.18)}
.hero-scroll{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  z-index:2;font-family:'IBM Plex Mono',monospace;font-size:.7rem;
  letter-spacing:.2em;text-transform:uppercase;color:var(--text-soft);
  animation:bob 2.4s ease-in-out infinite;
}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,6px)}}

/* ---------- blocks ---------- */
.block{padding:clamp(56px,9vw,108px) clamp(20px,5vw,48px)}
.block.alt{background:var(--bg-2)}
.block-grid{
  max-width:var(--max);margin:0 auto;
  display:grid;grid-template-columns:200px 1fr;gap:clamp(28px,5vw,72px);
  opacity:0;transform:translateY(18px);transition:opacity .7s,transform .7s;
}
.block.in .block-grid{opacity:1;transform:none}
.block-label{
  font-family:'IBM Plex Mono',monospace;font-size:.82rem;
  text-transform:uppercase;letter-spacing:.12em;color:var(--text-soft);
  padding-top:8px;
}
.block-label span{
  display:block;font-size:1.5rem;color:var(--accent);margin-bottom:6px;
}
@media(max-width:760px){
  .block-grid{grid-template-columns:1fr;gap:18px}
  .block-label{padding-top:0}
  .block-label span{display:inline;margin-right:8px}
}
h2{
  font-family:'Space Grotesk',sans-serif;font-weight:600;
  font-size:clamp(1.9rem,3.8vw,2.9rem);line-height:1.06;
  letter-spacing:-.02em;margin-bottom:22px;
}
.big-para{font-size:clamp(1.12rem,2vw,1.4rem);color:var(--text);margin-bottom:18px;font-weight:400}
.big-para strong{color:var(--accent);font-weight:600}
.block-body p{color:var(--text-soft);margin-bottom:16px;max-width:680px}
.block-body p strong{color:var(--text)}

/* loop */
.loop{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
.loop-step{
  background:var(--bg-3);border:1px solid var(--line);
  border-radius:4px;padding:24px 22px;position:relative;
  transition:border-color .2s,transform .2s;
}
.loop-step:hover{border-color:var(--accent);transform:translateY(-3px)}
.block.alt .loop-step{background:var(--bg-3)}
.loop-step h3{
  font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:1.25rem;
  margin-bottom:10px;color:var(--text);
}
.loop-step::before{
  content:"";position:absolute;top:0;left:0;width:42px;height:3px;
  background:var(--accent);
}
.loop-step p{font-size:.95rem;margin-bottom:0}
@media(max-width:760px){.loop{grid-template-columns:1fr}}

/* loop note */
.loop-note{margin-top:24px;font-size:1rem}
.loop-note strong{color:var(--accent);font-weight:600}

/* stats */
.stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
  margin:30px 0 10px;
}
.stat{
  border-left:3px solid var(--accent);padding:4px 0 4px 18px;
}
.stat-num{
  display:block;font-family:'Space Grotesk',sans-serif;font-weight:700;
  font-size:clamp(1.7rem,3vw,2.4rem);line-height:1.05;color:var(--accent);
  margin-bottom:6px;letter-spacing:-.02em;
}
.stat-label{display:block;font-size:.86rem;color:var(--text-soft);line-height:1.4}
.stat-source{font-size:.78rem!important;color:var(--text-soft);font-style:italic;margin-top:4px}
@media(max-width:760px){.stats{grid-template-columns:1fr;gap:14px}}

/* compare */
.compare{padding:24px 0;border-top:1px solid var(--line)}
.compare:first-of-type{border-top:none;padding-top:8px}
.compare h3{
  font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:1.4rem;
  margin-bottom:10px;color:var(--text);letter-spacing:-.01em;
}
.compare p{margin-bottom:0}

/* examples */
.examples{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:14px}
.ex{
  background:var(--bg-3);border:1px solid var(--line);border-radius:4px;
  padding:22px 20px;transition:transform .2s,border-color .2s,box-shadow .2s;
}
.ex:hover{transform:translateY(-3px);border-color:var(--accent-2);box-shadow:0 12px 30px rgba(31,162,255,.12)}
.ex h3{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:1.18rem;margin-bottom:8px;color:var(--text)}
.ex p{font-size:.92rem;margin-bottom:0}
@media(max-width:760px){.examples{grid-template-columns:1fr}}

/* authority links */
.authority-links{margin-top:30px}
.al-label{
  font-family:'IBM Plex Mono',monospace;font-size:.72rem;text-transform:uppercase;
  letter-spacing:.14em;color:var(--text-soft);margin-bottom:12px;
}
.al{
  display:inline-block;margin:0 12px 10px 0;
  color:var(--accent-2);font-weight:600;font-size:.95rem;
  text-decoration:none;border-bottom:1px solid var(--accent-2);padding-bottom:1px;
  transition:color .2s,border-color .2s;
}
.al:hover{color:var(--accent);border-color:var(--accent)}

/* faq */
.faq details{
  border-top:1px solid var(--line);padding:18px 0;
}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{
  cursor:pointer;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:1.14rem;
  color:var(--text);list-style:none;display:flex;justify-content:space-between;align-items:center;
  transition:color .2s;
}
.faq summary:hover{color:var(--accent)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-weight:400;font-size:1.6rem;line-height:1}
.faq details[open] summary::after{content:"\2013"}
.faq details p{margin-top:12px;margin-bottom:0;font-size:.97rem}

/* footer */
.site-foot{
  padding:clamp(40px,6vw,64px) clamp(20px,5vw,48px);
  border-top:1px solid var(--line);text-align:center;
}
.foot-mark{
  font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:1.1rem;
  margin-bottom:14px;color:var(--text);
}
.foot-mark span{color:var(--accent)}
.foot-note{
  color:var(--text-soft);font-size:.85rem;max-width:520px;margin:0 auto 12px;
}
.foot-copy{font-family:'IBM Plex Mono',monospace;font-size:.8rem;color:var(--text-soft)}
.foot-by{
  font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:.92rem;
  letter-spacing:-.01em;margin-top:14px;color:var(--text-soft);
}
.foot-by .jet{color:#FFFFFF}
.foot-by .jade{color:#00A86B}

/* focus */
a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}