:root{
    --paper:#f5f3ec; --paper2:#efece2; --card:#faf8f2; --ink:#16181c; --ink2:#474b54; --dim:#83868f;
    --line:#e2ddce; --line-s:#d6d0bd; --brass:#957534; --brass-d:#7c6029; --pos:#2c7a52; --neg:#b25b47;
    --disp:'Space Grotesk',system-ui,sans-serif; --body:'Inter',system-ui,sans-serif; --mono:'Space Mono',ui-monospace,monospace;
    --mw:1520px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth;scrollbar-color:var(--ink) var(--paper2);scrollbar-width:thin}
  /* custom scrollbar */
  ::-webkit-scrollbar{width:12px;height:12px}
  ::-webkit-scrollbar-track{background:var(--paper2)}
  ::-webkit-scrollbar-thumb{background:var(--ink);border:3px solid var(--paper2);border-radius:8px}
  ::-webkit-scrollbar-thumb:hover{background:#000}
  /* click ripple */
  .ripple{position:fixed;z-index:9999;width:18px;height:18px;margin:-9px 0 0 -9px;border-radius:50%;background:rgba(22,24,28,.28);pointer-events:none;transform:scale(0);animation:rip .62s cubic-bezier(.2,.7,.3,1) forwards}
  @keyframes rip{0%{transform:scale(0);opacity:.5}100%{transform:scale(11);opacity:0}}
  body{background-color:var(--paper);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
  /* dot-grid sweeps in from the left and fades out by ~halfway across */
  body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
    background-image:radial-gradient(rgba(22,24,28,.18) 1.2px,transparent 1.2px);
    background-size:21px 21px;background-position:-1px -1px;
    -webkit-mask-image:linear-gradient(100deg,#000 0%,rgba(0,0,0,.9) 30%,rgba(0,0,0,.4) 48%,transparent 64%);
    mask-image:linear-gradient(100deg,#000 0%,rgba(0,0,0,.9) 30%,rgba(0,0,0,.4) 48%,transparent 64%)}
  a{color:inherit;text-decoration:none}
  .wrap{max-width:var(--mw);margin:0 auto;padding:0 32px}
  .mono{font-family:var(--mono)}
  .lab{font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim)}
  svg.ic{width:1em;height:1em;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;vertical-align:-.12em}
  .btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--disp);font-weight:600;font-size:15px;padding:12px 22px;border-radius:8px;cursor:pointer;border:1px solid var(--ink);background:var(--ink);color:var(--paper);transition:.15s}
  .btn:hover{background:#000}
  .btn.o{background:transparent;color:var(--ink);border-color:var(--line-s)}
  .btn.o:hover{border-color:var(--ink)}
  .tlink{font-family:var(--disp);font-weight:600;font-size:15px;color:var(--ink);border-bottom:1.5px solid var(--brass);padding-bottom:2px}
  .tlink:hover{color:var(--brass)}

  /* nav */
  nav{position:fixed;inset:0 0 auto 0;z-index:50;background:rgba(245,243,236,.93);border-bottom:1px solid transparent;transition:.2s}
  nav.s{border-bottom-color:var(--line)}
  nav .in{max-width:var(--mw);margin:0 auto;height:68px;display:flex;align-items:center;gap:26px;padding:0 32px}
  .brand{display:flex;align-items:center;gap:10px;font-family:var(--disp);font-weight:700;font-size:19px;letter-spacing:-.01em}
  .brand .m{width:28px;height:28px;border-radius:7px;background:var(--ink);display:grid;place-items:center;color:var(--brass);overflow:hidden}
  .brand .m .ic{width:15px;height:15px;stroke-width:2}
  .brand .m img{width:100%;height:100%;object-fit:cover}
  nav .lk{margin-left:auto;display:flex;align-items:center;gap:26px;font-size:14.5px;font-weight:500;color:var(--ink2)}
  nav .lk a:hover{color:var(--ink)}
  nav .lk .btn{color:var(--paper)}

  /* hero */
  .hero{padding:150px 0 60px}
  .hero .lab{margin-bottom:24px}
  h1{font-family:var(--disp);font-weight:600;font-size:clamp(46px,7vw,90px);line-height:1.0;letter-spacing:-.035em;max-width:14ch}
  h1 .br{color:var(--brass)}
  .hlede{color:var(--ink2);font-size:clamp(18px,1.8vw,22px);max-width:600px;margin:30px 0 0;line-height:1.5}
  .hcta{display:flex;gap:22px;align-items:center;flex-wrap:wrap;margin:38px 0 0}
  .quote{display:grid;grid-template-columns:repeat(4,auto);gap:0;margin-top:70px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .quote .q{padding:20px 26px;border-right:1px solid var(--line)}
  .quote .q:first-child{padding-left:0}
  .quote .q:last-child{border-right:0;padding-right:0}
  .quote .qv{font-family:var(--mono);font-size:20px;font-weight:700;margin-top:4px}
  .quote .qv.pos{color:var(--pos)}

  /* assets strip */
  .assets{padding:34px 0;border-bottom:1px solid var(--line)}
  .assets .row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
  .assets .lab{margin-right:6px}
  .tk{font-family:var(--mono);font-size:13px;font-weight:700;border:1px solid var(--line-s);border-radius:6px;padding:6px 11px;color:var(--ink2)}
  .tk .up{color:var(--pos);font-weight:400;margin-left:6px}

  /* editorial numbered section */
  .sec{padding:96px 0;border-bottom:1px solid var(--line)}
  .sechead{display:grid;grid-template-columns:200px 1fr;gap:40px;align-items:baseline}
  .sechead h2{font-family:var(--disp);font-weight:600;font-size:clamp(28px,3.6vw,42px);letter-spacing:-.02em;line-height:1.06}
  .sechead h2 .br{color:var(--brass)}
  .sechead p{color:var(--ink2);font-size:17px;max-width:520px}
  .rows{margin-top:54px}
  .nrow{display:grid;grid-template-columns:200px 1fr 1.1fr;gap:40px;padding:30px 0;border-top:1px solid var(--line)}
  .nrow .num{font-family:var(--mono);font-size:14px;color:var(--brass);font-weight:700}
  .nrow h3{font-family:var(--disp);font-weight:600;font-size:23px;letter-spacing:-.01em}
  .nrow p{color:var(--ink2);font-size:15.5px}

  /* three col minimal */
  .three{display:grid;grid-template-columns:repeat(3,1fr);margin-top:54px;border-top:1px solid var(--line)}
  .three .c{padding:34px 34px;border-right:1px solid var(--line)}
  .three .c:first-child{padding-left:0}
  .three .c:last-child{border-right:0;padding-right:0}
  .three .c .ci{color:var(--brass);margin-bottom:16px} .three .c .ci .ic{width:26px;height:26px}
  .three .c h3{font-family:var(--disp);font-weight:600;font-size:21px;margin-bottom:8px}
  .three .c p{color:var(--ink2);font-size:15px}

  /* stats */
  .nums{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:20px}
  .nums .n{padding:8px 26px;border-right:1px solid var(--line)}
  .nums .n:first-child{padding-left:0}
  .nums .n:last-child{border-right:0;padding-right:0}
  .nums .nv{font-family:var(--disp);font-weight:600;font-size:clamp(30px,3.6vw,46px);letter-spacing:-.02em;line-height:1}
  .nums .nl{color:var(--ink2);font-size:14px;margin-top:10px}

  /* compare */
  .cmp{margin-top:54px;border-top:1px solid var(--ink)}
  .cmp .r{display:grid;grid-template-columns:1.6fr 1fr 1fr;align-items:center;border-bottom:1px solid var(--line)}
  .cmp .r>div{padding:18px 22px;font-size:15.5px}
  .cmp .r>div:not(:first-child){text-align:center;border-left:1px solid var(--line)}
  .cmp .hd>div{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);padding-top:12px;padding-bottom:12px}
  .cmp .hd .w{color:var(--ink);font-weight:700}
  .cmp .lbl{color:var(--ink2)} .cmp .yes{color:var(--pos);font-weight:600} .cmp .no{color:var(--dim)}

  /* token */
  .tok{padding:110px 0;border-bottom:1px solid var(--line);text-align:center}
  .tok .big{font-family:var(--disp);font-weight:700;font-size:clamp(60px,11vw,150px);letter-spacing:-.04em;line-height:.9}
  .tok .big .d{color:var(--brass)}
  .tok p{color:var(--ink2);font-size:18px;max-width:560px;margin:24px auto 0}
  .tok .hcta{justify-content:center}
  .ca{display:inline-flex;gap:9px;align-items:center;margin-top:26px;font-family:var(--mono);font-size:13px;color:var(--dim)}
  .ca code{color:var(--brass);cursor:pointer}

  footer{padding:54px 0 40px}
  footer .top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px;align-items:center}
  .soc{display:flex;gap:20px;font-size:14.5px;color:var(--ink2)}
  .soc a:hover{color:var(--ink)}
  .disc{color:var(--dim);font-size:12px;line-height:1.6;margin-top:34px;padding-top:24px;border-top:1px solid var(--line);max-width:920px}

  /* scroll-invert — alternating dark sections */
  section,header{transition:background-color .5s ease,color .5s ease,border-color .5s ease}
  nav{transition:background-color .35s ease,border-color .25s ease}
  .inv{background:var(--ink);color:var(--paper);border-bottom-color:#23262e}
  .inv .lab{color:#8b8f98}
  .inv h2,.inv h3,.inv .nv{color:var(--paper)}
  .inv .br{color:var(--brass)}
  .inv p,.inv .sechead p,.inv .nrow p,.inv .three .c p,.inv .nums .nl,.inv .cmp .lbl{color:#b6bac2}
  .inv .three,.inv .three .c,.inv .nrow,.inv .nums .n,.inv .cmp .r{border-color:#262a33}
  .inv .cmp{border-top-color:var(--paper)}
  .inv .cmp .r>div:not(:first-child){border-left-color:#262a33}
  .inv .cmp .hd>div{color:#8b8f98}.inv .cmp .hd .w{color:var(--paper)}
  .inv .cmp .yes{color:#5fd08f}.inv .cmp .no{color:#797d86}
  .inv .btn{background:var(--paper);color:var(--ink);border-color:var(--paper)}
  .inv .btn:hover{background:#fff}
  .inv .tlink{color:var(--paper)}
  /* nav + scrollbar over a dark section */
  body[data-bg="dark"] nav{background:rgba(22,24,28,.82)}
  body[data-bg="dark"] nav.s{border-bottom-color:#262a33}
  body[data-bg="dark"] .brand{color:var(--paper)}
  body[data-bg="dark"] .brand .m{background:var(--paper);color:var(--ink)}
  body[data-bg="dark"] nav .lk{color:#b6bac2}
  body[data-bg="dark"] nav .lk a:hover{color:var(--paper)}
  body[data-bg="dark"] nav .lk .btn{background:var(--paper);color:var(--ink);border-color:var(--paper)}
  body[data-bg="dark"] ::-webkit-scrollbar-track{background:#1b1e25}
  body[data-bg="dark"] ::-webkit-scrollbar-thumb{background:var(--paper);border-color:#1b1e25}

  /* ===== hero warmth + inverted calc card ===== */
  .inv .calcbox{background:#1b1e25;border-color:#2b2f39}
  .inv .calcbox .lab{color:#8b8f98}
  .inv .camt,.inv .cout .cv{color:var(--paper)}
  .inv .cv.pos,.inv .cbig.pos{color:#5fd08f}
  .inv .cout,.inv .cout .co{border-color:#2b2f39}
  .inv #cSlider{background:linear-gradient(90deg,var(--paper) 0,var(--paper) var(--fill,20%),#343945 var(--fill,20%),#343945 100%)}
  .inv #cSlider::-webkit-slider-thumb{background:var(--ink);border-color:var(--paper)}
  .inv #cSlider::-moz-range-thumb{background:var(--ink);border-color:var(--paper)}
  .hero{position:relative}
  .hero::before{content:"";position:absolute;inset:-80px 0 auto 0;height:640px;z-index:0;pointer-events:none;background:radial-gradient(760px 380px at 70% 16%,rgba(149,117,52,.11),transparent 62%)}
  .hero .wrap{position:relative;z-index:1}

  /* ===== brand strip (marquee across the middle, low-opacity logos) ===== */
  .strip{padding:26px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden}
  .marq{position:relative}
  .marq::before,.marq::after{content:"";position:absolute;top:0;bottom:0;width:90px;z-index:2;pointer-events:none}
  .marq::before{left:0;background:linear-gradient(90deg,var(--paper),rgba(245,243,236,0))}
  .marq::after{right:0;background:linear-gradient(270deg,var(--paper),rgba(245,243,236,0))}
  .track{display:flex;align-items:center;gap:64px;width:max-content;animation:marq 34s linear infinite;
    will-change:transform;transform:translateZ(0);backface-visibility:hidden}
  .bd{display:inline-flex;align-items:center;gap:13px;font-family:var(--disp);font-weight:600;font-size:20px;letter-spacing:-.01em;color:var(--ink2);opacity:.72;white-space:nowrap}
  .bd img{width:34px;height:34px;border-radius:50%;object-fit:cover}
  @keyframes marq{from{transform:translate3d(0,0,0)}to{transform:translate3d(-50%,0,0)}}

  /* ===== hero two-column ===== */
  .hgrid{display:grid;grid-template-columns:1.12fr .88fr;gap:38px;align-items:center;min-height:clamp(420px,62vh,600px)}
  .hleft h1{max-width:none}
  h1{font-size:clamp(48px,7.4vw,104px)}
  .hmedia{display:flex;align-items:center;justify-content:center;position:relative}
  .hmedia::before{content:"";position:absolute;inset:14%;border-radius:50%;z-index:0;
    background:radial-gradient(closest-side,rgba(149,117,52,.16),transparent 74%)}
  .hmedia video{position:relative;z-index:1;width:100%;max-width:540px;height:auto;pointer-events:none}

  /* ===== orbit carousel ===== */
  .orbit-wrap{display:flex;align-items:center;justify-content:center;position:relative;min-height:470px}
  .orbit{position:relative;width:min(470px,86vw);aspect-ratio:1}
  .ring{position:absolute;border-radius:50%;pointer-events:none}
  .ring.r1{inset:1%;border:1px dashed var(--line-s);opacity:.85}
  .ring.r2{inset:23%;border:1px solid var(--line)}
  .spin{position:absolute;inset:0;animation:orbit 50s linear infinite}
  .sat{position:absolute;left:50%;top:50%;width:66px;height:66px;margin:-33px 0 0 -33px;
    transform:rotate(var(--a)) translate(min(200px,40vw)) rotate(calc(-1*var(--a)))}
  .chip{width:100%;height:100%;border-radius:50%;background:#fff;overflow:hidden;display:grid;place-items:center;
    border:1px solid rgba(22,24,28,.07);box-shadow:0 8px 22px rgba(22,24,28,.16);animation:orbit-rev 50s linear infinite}
  .chip img{width:100%;height:100%;object-fit:cover}
  .chip.sol{background:#0b0d10}
  .chip.sol svg{width:58%;height:58%}
  .hub{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:clamp(98px,26%,126px);aspect-ratio:1;
    border-radius:26px;overflow:hidden;z-index:4;box-shadow:0 16px 46px rgba(22,24,28,.32);border:1px solid rgba(0,0,0,.12)}
  .hub img{width:100%;height:100%;object-fit:cover}
  @keyframes orbit{to{transform:rotate(360deg)}}
  @keyframes orbit-rev{to{transform:rotate(-360deg)}}
  @media(prefers-reduced-motion:reduce){.spin,.chip{animation:none}}

  /* ===== yield calculator ===== */
  .calcwrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:52px;align-items:center}
  .calchead h2{font-family:var(--disp);font-weight:600;font-size:clamp(28px,3.4vw,42px);letter-spacing:-.02em;line-height:1.06;margin:14px 0 16px}
  .calchead h2 .br{color:var(--brass)}
  .calchead p{color:var(--ink2);font-size:17px;max-width:420px}
  .calcbox{border:1px solid var(--line);border-radius:16px;background:var(--card);padding:30px 30px 28px}
  @media(max-width:900px){.calcwrap{grid-template-columns:1fr;gap:26px}}
  .ctop{display:flex;justify-content:space-between;align-items:flex-end;gap:20px}
  .camt{font-family:var(--disp);font-weight:600;font-size:clamp(34px,5vw,52px);letter-spacing:-.02em;line-height:1;margin-top:8px}
  .capy{text-align:right}
  .cbig{font-family:var(--disp);font-weight:600;font-size:28px;margin-top:6px}
  .cbig.pos{color:var(--pos)}
  #cSlider{-webkit-appearance:none;appearance:none;width:100%;height:8px;margin:26px 0 6px;border-radius:6px;outline:none;cursor:pointer;
    background:linear-gradient(90deg,var(--ink) 0,var(--ink) var(--fill,20%),var(--line) var(--fill,20%),var(--line) 100%)}
  #cSlider::-webkit-slider-thumb{-webkit-appearance:none;width:24px;height:24px;border-radius:50%;background:var(--paper);border:2px solid var(--ink);box-shadow:0 3px 10px rgba(22,24,28,.28);cursor:grab}
  #cSlider::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:var(--paper);border:2px solid var(--ink);cursor:grab}
  .cscale{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;color:var(--dim)}
  .cout{display:grid;grid-template-columns:repeat(3,1fr);margin:22px 0 24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .cout .co{padding:18px 22px;border-right:1px solid var(--line)}
  .cout .co:first-child{padding-left:0}
  .cout .co:last-child{border-right:0;padding-right:0}
  .cout .cv{font-family:var(--mono);font-size:22px;font-weight:700;margin-top:8px}
  .cout .cv.pos{color:var(--pos)}

  @media(max-width:900px){
    .wrap,nav .in{padding-left:20px;padding-right:20px}
    .hero{padding:120px 0 40px}
    .hgrid{grid-template-columns:1fr;gap:4px;min-height:0}
    .orbit-wrap{min-height:0;margin:14px 0 6px}
    .orbit{width:min(340px,82vw)}
    .sat{transform:rotate(var(--a)) translate(min(150px,37vw)) rotate(calc(-1*var(--a)))}
    .cout{grid-template-columns:1fr}
    .cout .co{padding:14px 0;border-right:0;border-bottom:1px solid var(--line)}
    .cout .co:last-child{border-bottom:0}
    .ctop{flex-wrap:wrap}
    .quote{grid-template-columns:1fr 1fr}.quote .q{border-right:0;border-bottom:1px solid var(--line);padding:16px 0}.quote .q:nth-child(odd){border-right:1px solid var(--line);padding-right:20px}
    .sechead,.nrow{grid-template-columns:1fr;gap:14px}
    .nrow{padding:24px 0}
    .three{grid-template-columns:1fr}.three .c{border-right:0;border-bottom:1px solid var(--line);padding:26px 0}
    .nums{grid-template-columns:1fr 1fr;gap:24px 0}.nums .n{padding-left:0;border-right:0}
    .sec,.tok{padding:64px 0}
    nav .lk a:not(.btn){display:none}
  }