/* Quavolve — design system
   aesthetic: quantum / scientific-instrument · near-black + aqua · Instrument Serif × IBM Plex Mono */

:root{
  --bg:#060809;
  --bg-2:#0a0e10;
  --bg-3:#0e1316;
  --ink:#e9efec;
  --ink-dim:#93a39d;
  --ink-faint:#5a6863;
  --line:rgba(140,168,160,.13);
  --line-2:rgba(140,168,160,.22);
  --line-strong:rgba(140,168,160,.34);
  --aqua:#75f0d8;
  --aqua-deep:#2fae98;
  --amber:#f2b977;
  --frame:clamp(18px,4vw,40px);
  --wrap:1160px;
  --serif:"Instrument Serif",Georgia,"Times New Roman",serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--mono);
  font-weight:400;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
::selection{background:rgba(117,240,216,.22);color:#fff}

/* fixed atmosphere behind everything */
.grain{
  position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.04;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode:overlay;
}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--frame)}

/* ── nav ─────────────────────────────── */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:40;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 var(--frame);height:62px;
  border-bottom:1px solid var(--line);
  background:rgba(6,8,9,.62);backdrop-filter:blur(14px) saturate(140%);
}
.brand{display:flex;align-items:baseline;gap:10px;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink)}
.brand .mk{font-family:var(--serif);font-size:21px;letter-spacing:0;text-transform:none;line-height:1}
.brand .mk i{font-style:italic;color:var(--aqua)}
.brand .sep{color:var(--ink-faint)}
.brand .sub{color:var(--ink-dim)}
.navlinks{display:flex;gap:26px;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-dim)}
.navlinks a{position:relative;transition:color .3s ease;padding:4px 0}
.navlinks a:hover{color:var(--ink)}
.navlinks a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--aqua);transition:width .35s cubic-bezier(.2,.7,.2,1)}
.navlinks a:hover::after{width:100%}
.navlinks a.cta{color:var(--aqua)}
@media (max-width:640px){.navlinks{gap:16px}.navlinks .hide-sm{display:none}}

/* ── hero ────────────────────────────── */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:96px var(--frame) 60px;overflow:hidden}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;display:block}
.hero-veil{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(120% 90% at 50% 40%,transparent 38%,rgba(0,0,0,.6) 100%),radial-gradient(70% 50% at 50% 28%,rgba(47,174,152,.09),transparent 60%)}
.hero-inner{position:relative;z-index:3;width:100%}

.hero-frame{position:absolute;inset:var(--frame);z-index:2;pointer-events:none;border:1px solid var(--line)}
.tick{position:absolute;width:9px;height:9px;border:1px solid var(--line-strong)}
.tick.tl{top:-1px;left:-1px;border-right:0;border-bottom:0}
.tick.tr{top:-1px;right:-1px;border-left:0;border-bottom:0}
.tick.bl{bottom:-1px;left:-1px;border-right:0;border-top:0}
.tick.br{bottom:-1px;right:-1px;border-left:0;border-top:0}
.corner{position:absolute;z-index:3;font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-dim)}
.corner.bl{left:calc(var(--frame) + 16px);bottom:calc(var(--frame) + 13px);display:flex;align-items:center;gap:8px}
.corner.br{right:calc(var(--frame) + 16px);bottom:calc(var(--frame) + 13px)}
.corner a{transition:color .3s}.corner a:hover{color:var(--aqua)}
.dot{width:6px;height:6px;border-radius:50%;background:var(--aqua);box-shadow:0 0 10px var(--aqua);animation:pulse 2.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.35;transform:scale(.8)}50%{opacity:1;transform:scale(1)}}
@media (max-width:640px){.corner.br{display:none}}

.kicker{font-size:clamp(10px,1.4vw,12.5px);letter-spacing:.46em;text-transform:uppercase;color:var(--ink-dim);margin-bottom:clamp(20px,3.2vh,34px)}
.kicker .plus{color:var(--aqua);font-weight:500;padding:0 .15em}
.wordmark{font-family:var(--serif);font-weight:400;font-size:clamp(62px,15.5vw,200px);line-height:.84;letter-spacing:-.012em}
.wordmark .v{font-style:italic;background:linear-gradient(180deg,#fff,var(--aqua) 165%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero .rule{width:min(420px,60vw);height:1px;margin:clamp(24px,4vh,42px) auto clamp(18px,2.6vh,28px);background:linear-gradient(90deg,transparent,var(--line-strong),transparent);position:relative}
.hero .rule::after{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:5px;height:5px;border-radius:50%;background:var(--aqua-deep);box-shadow:0 0 8px var(--aqua-deep)}
.hero .statement{font-family:var(--serif);font-size:clamp(20px,3.3vw,34px);line-height:1.25;color:var(--ink);max-width:24ch;margin:0 auto}
.hero .subline{margin:clamp(20px,3vh,30px) auto 0;max-width:52ch;font-size:clamp(12.5px,1.5vw,14.5px);line-height:1.75;color:var(--ink-dim)}
.status{margin-top:clamp(22px,3.4vh,36px);font-size:clamp(10.5px,1.3vw,12px);letter-spacing:.34em;text-transform:uppercase;color:var(--aqua);display:inline-flex;align-items:center;gap:11px}
.status .bar{width:34px;height:1px;background:linear-gradient(90deg,transparent,var(--aqua))}
.status .bar.r{background:linear-gradient(90deg,var(--aqua),transparent)}
.scrollcue{position:absolute;left:50%;bottom:calc(var(--frame) + 30px);transform:translateX(-50%);z-index:3;font-size:9.5px;letter-spacing:.3em;text-transform:uppercase;color:var(--ink-faint);display:flex;flex-direction:column;align-items:center;gap:9px}
.scrollcue .v{width:1px;height:30px;background:linear-gradient(180deg,var(--line-strong),transparent);animation:drip 2.4s ease-in-out infinite}
@keyframes drip{0%{transform:scaleY(.3);transform-origin:top;opacity:.4}50%{transform:scaleY(1);opacity:1}100%{transform:scaleY(.3);transform-origin:bottom;opacity:.4}}
@media (max-width:640px){.scrollcue{display:none}}

/* hero stagger reveal */
.hero .kicker,.hero .wordmark,.hero .rule,.hero .statement,.hero .subline,.hero .status{opacity:0;animation:rise 1s cubic-bezier(.2,.7,.2,1) forwards}
.hero .kicker{animation-delay:.1s}.hero .wordmark{animation-delay:.26s}.hero .rule{animation-delay:.5s}
.hero .statement{animation-delay:.62s}.hero .subline{animation-delay:.78s}.hero .status{animation-delay:.92s}
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

/* ── sections ────────────────────────── */
.section{position:relative;z-index:3;padding:clamp(74px,12vh,150px) 0;border-top:1px solid var(--line)}
.eyebrow{display:flex;align-items:center;gap:12px;font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--ink-dim);margin-bottom:26px}
.eyebrow .idx{color:var(--aqua)}
.eyebrow .ln{flex:0 0 36px;height:1px;background:var(--line-strong)}
.h2{font-family:var(--serif);font-weight:400;font-size:clamp(33px,5.4vw,62px);line-height:1.04;letter-spacing:-.01em;max-width:18ch}
.h2 em{font-style:italic;color:var(--aqua)}
.lede{font-size:clamp(13.5px,1.55vw,16px);line-height:1.78;color:var(--ink-dim);max-width:60ch;margin-top:26px}
.lede strong{color:var(--ink);font-weight:500}
.split{display:grid;grid-template-columns:1fr;gap:clamp(30px,5vw,72px)}
@media (min-width:860px){.split.two{grid-template-columns:0.85fr 1.15fr;align-items:start}}

/* cards */
.grid{display:grid;gap:18px;margin-top:46px}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c3{grid-template-columns:repeat(3,1fr)}
@media (max-width:820px){.grid.c2,.grid.c3{grid-template-columns:1fr}}
.card{position:relative;border:1px solid var(--line);background:linear-gradient(180deg,var(--bg-2),var(--bg));padding:30px 28px 34px;transition:border-color .4s ease,transform .4s ease,background .4s ease}
.card:hover{border-color:var(--line-strong);transform:translateY(-3px);background:linear-gradient(180deg,var(--bg-3),var(--bg))}
.card .tk{position:absolute;top:-1px;right:-1px;width:10px;height:10px;border-top:1px solid var(--aqua-deep);border-right:1px solid var(--aqua-deep);opacity:.5}
.card .no{font-size:10.5px;letter-spacing:.24em;color:var(--ink-faint)}
.card h3{font-family:var(--serif);font-weight:400;font-size:clamp(22px,2.6vw,28px);line-height:1.12;margin:16px 0 12px}
.card h3 .tag{display:inline-block;font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--aqua);vertical-align:middle;margin-left:10px;padding:3px 8px;border:1px solid var(--line-2);border-radius:2px}
.card p{font-size:13px;line-height:1.72;color:var(--ink-dim)}
.card .arrow{margin-top:20px;display:inline-flex;align-items:center;gap:9px;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua)}
.card .arrow .a{transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.card.link:hover .arrow .a{transform:translateX(6px)}

/* feature list (compact) */
.feat{border-top:1px solid var(--line);padding:22px 4px 22px;display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:start}
.feat .k{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--aqua-deep);padding-top:3px;min-width:130px}
.feat .b{font-size:13.5px;line-height:1.7;color:var(--ink-dim)}
.feat .b b{color:var(--ink);font-weight:500}
@media (max-width:640px){.feat{grid-template-columns:1fr;gap:8px}.feat .k{min-width:0}}

/* pills */
.pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}
.pill{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-dim);border:1px solid var(--line-2);border-radius:2px;padding:7px 12px;transition:border-color .3s,color .3s}
.pill:hover{border-color:var(--aqua-deep);color:var(--ink)}
.pill code{color:var(--aqua);font-size:10.5px}

/* code block */
.code{margin-top:34px;border:1px solid var(--line);background:#070b0c;border-radius:3px;overflow:hidden}
.code .bar{display:flex;align-items:center;gap:8px;padding:11px 15px;border-bottom:1px solid var(--line);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-faint)}
.code .bar .d{width:8px;height:8px;border-radius:50%;background:var(--line-strong)}
.code .bar .f{margin-left:auto;color:var(--ink-dim)}
.code pre{margin:0;padding:20px 18px;overflow-x:auto;font-size:12.5px;line-height:1.85;color:var(--ink)}
.code .ky{color:var(--aqua)}.code .st{color:var(--amber)}.code .nu{color:#a8d8ff}.code .cm{color:var(--ink-faint)}.code .pn{color:var(--ink-dim)}

/* flow */
.flow{display:flex;flex-wrap:wrap;align-items:stretch;gap:0;margin-top:46px;border:1px solid var(--line)}
.flow .step{flex:1 1 150px;min-width:140px;padding:24px 20px;border-right:1px solid var(--line);position:relative}
.flow .step:last-child{border-right:0}
.flow .step .n{font-size:10px;letter-spacing:.24em;color:var(--aqua);}
.flow .step .t{font-family:var(--serif);font-size:20px;margin:12px 0 8px;line-height:1.1}
.flow .step .d{font-size:12px;line-height:1.65;color:var(--ink-dim)}
@media (max-width:820px){.flow .step{flex-basis:100%;border-right:0;border-bottom:1px solid var(--line)}.flow .step:last-child{border-bottom:0}}

/* big CTA */
.cta-band{text-align:center}
.cta-band .h2{margin:0 auto}
.btn{display:inline-flex;align-items:center;gap:12px;margin-top:34px;padding:15px 26px;border:1px solid var(--aqua-deep);color:var(--aqua);font-size:12px;letter-spacing:.2em;text-transform:uppercase;border-radius:2px;transition:background .35s ease,color .35s ease,box-shadow .35s ease}
.btn:hover{background:var(--aqua);color:#04110d;box-shadow:0 0 32px rgba(117,240,216,.28)}
.btn .a{transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.btn:hover .a{transform:translateX(5px)}

/* footer */
.footer{position:relative;z-index:3;border-top:1px solid var(--line);padding:54px var(--frame) 40px}
.footer .row{max-width:var(--wrap);margin:0 auto;display:flex;flex-wrap:wrap;justify-content:space-between;gap:26px;align-items:flex-end}
.footer .mk{font-family:var(--serif);font-size:30px;line-height:1}
.footer .mk i{font-style:italic;color:var(--aqua)}
.footer .meta{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);line-height:2}
.footer .meta a:hover{color:var(--aqua)}
.footer .legal{max-width:var(--wrap);margin:34px auto 0;padding-top:22px;border-top:1px solid var(--line);font-size:10.5px;letter-spacing:.1em;color:var(--ink-faint);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}

/* scroll reveal */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
[data-reveal].in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  [data-reveal]{opacity:1;transform:none}
  .hero .kicker,.hero .wordmark,.hero .rule,.hero .statement,.hero .subline,.hero .status{opacity:1}
}