/* ============================================================
   Centaurtech — premium dark bento system
   Display/headings: Fraunces (serif) · Body: Spline Sans · Labels: JetBrains Mono
   ============================================================ */
:root{
  --bg:#090b0a;
  --surface:#10130f;
  --surface-2:#151a13;
  --ink:#edf0ea;
  --ink-dim:#98a299;
  --green:#86c232;
  --green-bright:#a8e24c;
  --green-deep:#5f8f24;
  --green-glow:rgba(134,194,50,.45);
  --border:rgba(237,240,234,.09);
  --border-hover:rgba(134,194,50,.40);
  --display:"Fraunces",Georgia,serif;
  --body:"Spline Sans",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,monospace;
  --maxw:1200px;
  --r:18px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);
  font-family:var(--body);font-size:1.04rem;line-height:1.62;font-weight:300;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(50% 40% at 82% 8%, rgba(134,194,50,.09), transparent 60%),
    radial-gradient(55% 45% at 5% 95%, rgba(40,90,55,.13), transparent 65%);
}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--display);font-weight:400;line-height:1.06;letter-spacing:-.018em}
em{font-style:italic}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(1.2rem,4vw,2.4rem)}

/* eyebrow / micro label */
.eyebrow{font-family:var(--mono);font-weight:400;font-size:.72rem;letter-spacing:.26em;
  text-transform:uppercase;color:var(--green);display:inline-flex;align-items:center;gap:.7rem}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--green)}

/* buttons */
.btn{font-family:var(--mono);font-weight:400;font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;
  padding:.95rem 1.7rem;border-radius:6px;display:inline-flex;align-items:center;gap:.5rem;cursor:pointer;
  transition:transform .25s cubic-bezier(.2,.8,.2,1),background .25s,border-color .25s,box-shadow .25s}
.btn-solid{background:var(--green);color:#0b1404;border:1px solid var(--green)}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 12px 30px -10px var(--green-glow)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--border)}
.btn-ghost:hover{border-color:var(--border-hover);color:var(--green)}

/* nav */
header{position:sticky;top:0;z-index:60;backdrop-filter:blur(14px);background:rgba(9,11,10,.72);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:.55rem;font-family:var(--display);font-weight:600;font-size:1.32rem;letter-spacing:-.01em}
.logo img{height:26px;width:auto}
.logo span{color:var(--ink-dim);font-weight:400;font-style:italic}
.logo .logo-text{display:inline}
.logo img{max-height:32px;width:auto}
.nav-right{display:flex;align-items:center;gap:1.8rem}
.nav-links{display:flex;gap:1.6rem;font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-dim)}
.nav-links a:hover{color:var(--ink)}
.nav .btn{padding:.65rem 1.15rem;font-size:.7rem}
@media(max-width:760px){.nav-links{display:none}}

/* full-screen helix background + scroll scrim */
#bg-helix{position:fixed;inset:0;width:100%;height:100%;z-index:0;display:block}
.scrim{position:fixed;inset:0;z-index:1;background:#090b0a;opacity:0;pointer-events:none}
main{position:relative;z-index:2}

/* section rhythm */
section{padding:clamp(4.5rem,9vw,7.5rem) 0}
.sec-head{max-width:700px;margin-bottom:3rem}
.sec-head h2{font-size:clamp(2rem,3.8vw,3.1rem)}
.sec-head p{color:var(--ink-dim);margin-top:1.1rem;font-size:1.1rem;max-width:60ch}

/* HERO */
.hero{position:relative;min-height:92vh;display:flex;align-items:center;padding:6rem 0 5rem}
/* left scrim ONLY on the helix hero (index). About/Pricing heroes stay un-dimmed. */
.hero--helix::before{content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(100deg, rgba(9,11,10,.92) 0%, rgba(9,11,10,.55) 42%, rgba(9,11,10,0) 74%)}
.hero-inner{position:relative;z-index:1;max-width:680px}
.hero h1{font-size:clamp(2.9rem,6vw,5.6rem);font-weight:300;line-height:1.03}
.hero h1 em{font-style:italic;color:var(--green)}
.hero .sub{color:var(--ink-dim);font-size:clamp(1.08rem,1.5vw,1.32rem);margin:1.5rem 0 2.2rem;max-width:48ch}
.hero .cta-row{display:flex;gap:.9rem;flex-wrap:wrap}
.scroll-cue{position:absolute;bottom:2rem;z-index:1;font-family:var(--mono);font-size:.68rem;letter-spacing:.24em;
  text-transform:uppercase;color:var(--ink-dim);display:flex;align-items:center;gap:.9rem}
.scroll-cue .ln{width:1px;height:34px;background:linear-gradient(var(--green),transparent)}
@media(max-width:860px){
  .hero--helix::before{background:linear-gradient(180deg, rgba(9,11,10,.74) 0%, rgba(9,11,10,.5) 55%, rgba(9,11,10,.82) 100%)}
  .hero-inner{max-width:100%}
}

/* ambient bokeh canvas + mouse-trailing glow (About / Pricing) */
#ambient{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.mglow{position:fixed;top:0;left:0;width:620px;height:620px;border-radius:50%;z-index:0;pointer-events:none;
  background:radial-gradient(circle, rgba(134,194,50,.12), rgba(134,194,50,.04) 38%, transparent 64%);
  will-change:transform}

/* BENTO GRID */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:1.1rem}
.tile{background:linear-gradient(165deg,var(--surface),var(--surface-2));border:1px solid var(--border);
  border-radius:var(--r);padding:1.8rem;position:relative;overflow:hidden;
  transition:border-color .35s,transform .35s cubic-bezier(.2,.8,.2,1)}
.tile::after{content:"";position:absolute;inset:0;opacity:0;transition:opacity .35s;pointer-events:none;
  background:radial-gradient(120% 80% at 50% -10%, rgba(134,194,50,.12), transparent 55%)}
.tile:hover{border-color:var(--border-hover);transform:translateY(-3px)}
.tile:hover::after{opacity:1}
.tile h3{font-size:1.45rem;margin-bottom:.5rem;line-height:1.15}
.tile p{color:var(--ink-dim);font-size:1rem}
.tile .idx{font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;color:var(--green);text-transform:uppercase}
.col-6{grid-column:span 6}.col-4{grid-column:span 4}.col-3{grid-column:span 3}.col-2{grid-column:span 2}
.tile.accent{background:linear-gradient(150deg, rgba(134,194,50,.16), rgba(95,143,36,.05));border-color:rgba(134,194,50,.30)}
.tile.feature{display:flex;flex-direction:column;justify-content:space-between;min-height:230px}
.tile .big-n{font-family:var(--display);font-weight:300;font-size:clamp(2.8rem,4.4vw,3.9rem);line-height:1;color:var(--ink)}
.tile .big-n em{font-style:italic;color:var(--green)}
.tile .lbl{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;color:var(--ink-dim);text-transform:uppercase;margin-top:.7rem}
@media(max-width:860px){.bento{grid-template-columns:repeat(2,1fr)}.col-6{grid-column:span 2}.col-4,.col-3{grid-column:span 2}.col-2{grid-column:span 1}}
@media(max-width:520px){.bento{grid-template-columns:1fr}.col-6,.col-4,.col-3,.col-2{grid-column:span 1}}

.split{display:grid;grid-template-columns:1fr 1fr;gap:2.4rem;align-items:center}
@media(max-width:820px){.split{grid-template-columns:1fr;gap:1.6rem}}

/* pricing cards */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-top:2.6rem}
.tier{background:linear-gradient(165deg,var(--surface),var(--surface-2));border:1px solid var(--border);border-radius:var(--r);padding:2.1rem 1.9rem;display:flex;flex-direction:column}
.tier.highlight{border-color:rgba(134,194,50,.4);box-shadow:0 20px 60px -30px var(--green-glow)}
.tier .name{font-family:var(--display);font-weight:400;font-size:1.4rem}
.tier .price{font-family:var(--display);font-weight:300;font-size:2.7rem;margin:.7rem 0 .2rem;line-height:1}
.tier .price small{font-size:.95rem;color:var(--ink-dim);font-family:var(--body)}
.tier .from{font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--green)}
.tier ul{list-style:none;margin:1.5rem 0;display:flex;flex-direction:column;gap:.75rem}
.tier li{color:var(--ink-dim);font-size:.98rem;padding-left:1.5rem;position:relative}
.tier li::before{content:"→";position:absolute;left:0;color:var(--green)}
.tier .btn{margin-top:auto;justify-content:center}
@media(max-width:820px){.tiers{grid-template-columns:1fr}}

/* CTA band */
.cta-band{background:linear-gradient(150deg, rgba(134,194,50,.14), rgba(9,11,10,.2));border:1px solid rgba(134,194,50,.25);
  border-radius:24px;padding:clamp(2.6rem,5vw,4.2rem);text-align:center}
.cta-band h2{font-size:clamp(2rem,4vw,3.2rem)}
.cta-band p{color:var(--ink-dim);max-width:48ch;margin:1.1rem auto 1.9rem;font-size:1.1rem}

/* prose (about) */
.prose{max-width:720px}
.prose p{margin-bottom:1.35rem;color:#c8cdc6}
.prose h2{font-size:clamp(1.7rem,3vw,2.3rem);margin:2.6rem 0 1rem}
.prose .lead{font-size:1.3rem;color:var(--ink);font-style:italic}

/* footer */
footer{border-top:1px solid var(--border);padding:3.2rem 0;color:var(--ink-dim);position:relative;z-index:2}
.foot{display:flex;justify-content:space-between;gap:1.4rem;flex-wrap:wrap;align-items:center;font-family:var(--mono);font-size:.74rem;letter-spacing:.06em}
.foot a:hover{color:var(--green)}
.foot .tagline{font-family:var(--display);font-style:italic;letter-spacing:0;font-size:.95rem;text-transform:none}

/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s cubic-bezier(.2,.8,.2,1),transform .9s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.06s}.d2{transition-delay:.12s}.d3{transition-delay:.18s}.d4{transition-delay:.24s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}