/* Prometheor website: shared tokens, header, buttons and footer (Ember Network, light). */
:root{
  --bg:#fcfbf9;
  --paper:#ffffff;
  --panel:#f3f1ed;
  --fg:#15120f;
  --muted:#5f5850;
  --faint:#857d74;
  --line:rgba(21,18,15,.09);
  --line2:rgba(21,18,15,.16);
  --ember:#c93400;
  --flame:#f4512c;
  --soft:#fde7d9;
  --deep:#8a2a00;
  --shadow:0 2px 4px rgba(21,18,15,.04),0 40px 90px -42px rgba(21,18,15,.32);
  --sans:"Manrope","Avenir Next","Segoe UI",system-ui,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  color-scheme:light;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--bg)}
a{color:var(--ember)}
a:hover{color:var(--deep)}
:focus-visible{outline:2px solid var(--ember);outline-offset:3px}
h1,h2,h3{margin:0;text-wrap:balance;font-weight:700}
p{margin:0}
/* page width (owner, 27 October 2026): use the screen like Linear, Stripe and Vercel do.
   One container for header, sections and footer, so the logo lines up with the content. */
:root{--page-max:1560px;--gutter:16px}
@media (min-width:900px){:root{--gutter:clamp(32px,4vw,64px)}}
.w{width:100%;max-width:var(--page-max);margin:0 auto;padding-left:max(var(--gutter),env(safe-area-inset-left,0px));padding-right:max(var(--gutter),env(safe-area-inset-right,0px))}
.skip-link{position:absolute;left:12px;top:-60px;z-index:40;padding:10px 16px;border-radius:999px;background:var(--fg);color:var(--paper);font-weight:700;text-decoration:none}
.skip-link:focus{top:12px;color:var(--paper)}
.h1{font-size:clamp(44px,6.6vw,96px);line-height:.95;letter-spacing:-.055em}
.h2{font-size:clamp(34px,4.6vw,64px);line-height:1;letter-spacing:-.045em}
.h1 span,.h2 span{color:var(--ember)}
.lede{font-size:clamp(17px,1.45vw,20px);color:var(--muted);max-width:52ch}
.fine{font-size:13.5px;color:var(--faint)}
.note{font-size:13px;color:var(--faint);font-weight:600}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:999px;font:700 15px/1 var(--sans);text-decoration:none;color:var(--fg);background:var(--paper);border:1px solid var(--line2);cursor:pointer;white-space:nowrap;transition:border-color .2s,background .2s,transform .2s,box-shadow .2s}
.btn:hover{border-color:var(--fg);color:var(--fg);transform:translateY(-1px)}
.btn-p{background:var(--fg);border-color:var(--fg);color:var(--paper)}
.btn-p:hover{background:#2c2621;color:var(--paper);box-shadow:0 12px 24px -12px rgba(21,18,15,.55)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.cta{display:flex;flex-wrap:wrap;gap:10px}

/* header */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:rgba(252,251,249,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav .w{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
@media (min-width:900px){.nav .w{display:grid;grid-template-columns:1fr auto 1fr;gap:24px;min-height:72px}.nav .brand{justify-self:start}.nav .act{justify-self:end}}
.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;font-size:21px;font-weight:600;letter-spacing:-.055em;color:var(--fg);text-decoration:none}
.brand:hover{color:var(--fg)}
.brand svg{width:17px;height:23px;flex:none}
.links{display:flex;gap:clamp(26px,2.4vw,40px)}
.links a{position:relative;color:var(--muted);font-size:14.5px;font-weight:600;text-decoration:none;transition:color .2s}
.links a:hover,.links a[aria-current="true"],.links a[aria-current="page"]{color:var(--fg)}
.links a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:1.5px;border-radius:2px;background:var(--ember);transform:scaleX(0);transform-origin:left;transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.links a[aria-current="true"]::after,.links a[aria-current="page"]::after{transform:scaleX(1)}
.act{display:flex;gap:6px;align-items:center}
.act .si{color:var(--muted);font-size:14.5px;font-weight:600;text-decoration:none;padding:0 10px;min-height:44px;display:inline-flex;align-items:center}
.act .si:hover{color:var(--fg)}

/* footer */
.foot{padding-block:56px 32px;border-top:1px solid var(--line);font-size:14.5px;color:var(--muted)}
.fg{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:32px}
.fb{display:flex;flex-direction:column;gap:14px}
.fb p{max-width:34ch}
.fg nav{display:flex;flex-direction:column;gap:10px}
.fg nav b{font-size:13px;color:var(--fg)}
.fg nav a{color:var(--muted);text-decoration:none}
.fg nav a:hover{color:var(--fg)}
.fbar{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:40px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--faint)}
.fbar a{color:var(--muted);text-decoration:none;font-weight:600}
.fbar a:hover{color:var(--fg)}

/* mobile menu (no script needed) */
.mnav{display:none;position:relative}
.mnav summary{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;border:1px solid var(--line2);background:var(--paper);cursor:pointer;list-style:none}
.mnav summary::-webkit-details-marker{display:none}
.mnav summary span,.mnav summary span::before{display:block;width:16px;height:1.6px;border-radius:2px;background:var(--fg);transition:transform .25s}
.mnav summary span{position:relative;transform:translateY(-3px)}
.mnav summary span::before{content:"";position:absolute;left:0;top:6px}
.mnav[open] summary span{transform:translateY(0) rotate(45deg)}
.mnav[open] summary span::before{transform:translateY(-6px) rotate(-90deg)}
.mnav-p{position:fixed;left:0;right:0;top:calc(64px + env(safe-area-inset-top,0px));display:flex;flex-direction:column;gap:20px;padding:12px max(16px,env(safe-area-inset-left,0px)) 24px;background:var(--bg);border-bottom:1px solid var(--line);box-shadow:0 30px 60px -30px rgba(21,18,15,.35)}
.mnav-p nav{display:flex;flex-direction:column}
.mnav-p nav a{display:flex;align-items:center;min-height:52px;border-bottom:1px solid var(--line);color:var(--fg);font-size:19px;font-weight:650;letter-spacing:-.02em;text-decoration:none}
.mnav-p .btn{width:100%;min-height:52px}

@media (max-width:900px){
  .links{display:none}
  .mnav{display:block}
  .act .btn-sm.btn-p{display:none}
  .fg{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 24px}
  .fb{grid-column:1 / -1}
  .fg nav[aria-label="Legal"]{grid-column:1 / -1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 24px}
  .fg nav[aria-label="Legal"] b{grid-column:1 / -1}
  .foot{padding-block:44px 28px}
}
@media (max-width:480px){
  .h1{font-size:clamp(40px,12vw,56px)}
  .act .si{padding:0 6px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none !important;transition:none !important}
}

/* small moments everywhere (27 October 2026): the flame flickers, buttons press, a spark runs along the footer */
.brand svg{transform-origin:50% 100%}
.brand:hover svg{animation:flick .9s ease-in-out}
@keyframes flick{0%,100%{transform:none}25%{transform:scale(1.08,.94) skewX(-4deg)}50%{transform:scale(.95,1.08) skewX(3deg)}75%{transform:scale(1.04,.97) skewX(-2deg)}}
.btn{transition:transform .2s cubic-bezier(.3,1.5,.5,1),background .2s,border-color .2s,color .2s,box-shadow .2s}
.btn:active{transform:scale(.97)}
.foot{position:relative;overflow:hidden}
.foot::before{content:"";position:absolute;top:0;left:0;width:140px;height:1px;background:linear-gradient(90deg,rgba(244,81,44,0),var(--ember),rgba(244,81,44,0));transform:translateX(-140px);animation:foot-run 10s 2s linear infinite}
@keyframes foot-run{0%{transform:translateX(-140px)}40%,100%{transform:translateX(100vw)}}
.fg nav a{position:relative;align-self:flex-start;transition:color .2s,transform .25s cubic-bezier(.3,1.5,.5,1)}
.fg nav a::before{content:"";position:absolute;left:-11px;top:50%;width:5px;height:5px;margin-top:-2.5px;border-radius:50%;background:var(--ember);opacity:0;transform:scale(0);transition:opacity .2s,transform .25s cubic-bezier(.3,1.6,.5,1)}
.fg nav a:hover{transform:translateX(6px)}
.fg nav a:hover::before{opacity:1;transform:none}
.fbar a{background-image:linear-gradient(var(--ember),var(--ember));background-repeat:no-repeat;background-position:0 100%;background-size:0 1.5px;transition:background-size .35s ease,color .2s}
.fbar a:hover{background-size:100% 1.5px}