/* Fokiz — shared tokens and chrome */
:root{
  --bg:#000;
  --ink:#f2f0ef;
  --ink-2:#a7a3a2;
  --ink-3:#6d6867;
  --line:rgba(255,255,255,.13);
  --line-soft:rgba(255,255,255,.07);
  --surface:#0a0808;
  --accent:#cf4a55;
  --accent-dim:rgba(207,74,85,.30);
  --serif:"Instrument Serif",Georgia,"Times New Roman",serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --pad:clamp(20px,4.5vw,56px);
  --maxw:1320px;
  --bar:64px;
  --rail:184px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
::selection{background:var(--accent);color:#000}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--serif);font-weight:400;letter-spacing:-.015em;margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.mono{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3)}
/* the ripple logo. An SVG with no size fills its container, so this is not optional. */
.mark{width:15px;height:15px;flex:none}

/* ---- top bar -------------------------------------------------------------
   Not a capsule and not a row of links: a segmented instrument strip, divided
   by full-height hairlines so it reads as one more row of the spec grids the
   page is built from. The logo's outer ring doubles as the scroll indicator.
   -------------------------------------------------------------------------- */
#nav{
  position:fixed;top:0;left:0;right:0;z-index:60;height:var(--bar);
  display:flex;align-items:stretch;
  border-bottom:1px solid var(--line-soft);
  background:rgba(0,0,0,.5);
  backdrop-filter:blur(20px) saturate(1.25);-webkit-backdrop-filter:blur(20px) saturate(1.25);
  transition:background .3s ease,border-color .3s ease;
}
#nav.stuck{background:rgba(0,0,0,.9);border-bottom-color:var(--line)}
.nav-in{
  display:flex;align-items:stretch;width:100%;
  max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);
}
.cell{
  display:flex;align-items:center;gap:10px;flex:none;
  padding:0 clamp(14px,1.9vw,24px);
  border-left:1px solid var(--line-soft);
}
.cell:first-child{padding-left:0;border-left:0}
.cell:last-child{padding-right:0}
.cell.grow{flex:1;min-width:0}

/* brand */
.brand{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:12.5px;letter-spacing:.22em;text-transform:uppercase;flex:none}
.mark{width:20px;height:20px;flex:none;color:var(--ink);transition:color .3s ease,transform .45s cubic-bezier(.2,.7,.3,1)}
.brand:hover .mark{color:var(--accent)}

/* scroll progress: a hairline along the bar's own bottom edge, so it reads as
   part of the rule system rather than as a widget */
.nav-prog{
  position:absolute;left:0;bottom:-1px;height:1px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:0 50%;
  will-change:transform;
}

/* the section index: every stop is always visible as a number, and only the
   one you are in unfurls its name */
.nav-idx{display:flex;align-items:center;gap:0;overflow:hidden}
.nav-idx a{
  display:flex;align-items:center;gap:0;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--ink-3);padding:6px 0;transition:color .25s ease;
}
.nav-idx a + a{margin-left:14px}
.nav-idx a .n{position:relative;padding-right:0;transition:color .25s ease}
.nav-idx a .t{
  display:inline-block;white-space:nowrap;overflow:hidden;
  max-width:0;opacity:0;margin-left:0;
  transition:max-width .5s cubic-bezier(.2,.7,.3,1),opacity .3s ease,margin-left .5s cubic-bezier(.2,.7,.3,1);
}
.nav-idx a:hover{color:var(--ink-2)}
.nav-idx a.on{color:var(--ink)}
.nav-idx a.on .n{color:var(--accent)}
.nav-idx a.on .t{max-width:200px;opacity:1;margin-left:9px}

/* the tagline occupies the same slot until you leave the hero */
.nav-slot{position:relative;flex:1;min-width:0;display:flex;align-items:center}
.nav-slot > *{transition:opacity .35s ease,transform .35s cubic-bezier(.2,.7,.3,1)}
.nav-tag{position:absolute;left:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
#nav.past .nav-tag{opacity:0;transform:translateY(-6px);pointer-events:none}
#nav:not(.past) .nav-idx{opacity:0;transform:translateY(6px);pointer-events:none}

/* live chain readout */
.nav-live{font-family:var(--mono);font-size:10px;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-3);white-space:nowrap;display:flex;align-items:center;gap:9px}
.nav-live b{font-weight:400;color:var(--ink-2);font-variant-numeric:tabular-nums}
.nav-live i{width:5px;height:5px;border-radius:50%;background:var(--ink-3);font-style:normal;flex:none}
.nav-live.live i{background:var(--accent)}
.nav-live .sep{color:#3b3736}

@media(max-width:1100px){.nav-live{display:none}.cell.live{display:none}}
@media(max-width:860px){
  .nav-idx a .t{display:none}
  .nav-idx a + a{margin-left:12px}
  .nav-tag{font-size:9.5px}
}
@media(max-width:600px){
  /* the tagline can only ellipsis at this width; show the section index instead,
     and stop gating it on .past so the cell is never empty */
  .nav-tag{display:none}
  #nav:not(.past) .nav-idx{opacity:1;transform:none;pointer-events:auto}
  .brand{font-size:11.5px;letter-spacing:.18em}
  .cell{padding:0 12px}
}

/* buttons */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--sans);font-size:14px;font-weight:500;
  padding:10px 18px;border-radius:2px;
  background:var(--ink);color:#000;border:1px solid var(--ink);
  transition:background .2s,color .2s,border-color .2s,opacity .2s;cursor:pointer;
}
.btn:hover{background:transparent;color:var(--ink)}
.btn-sm{padding:8px 14px;font-size:13px}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--ink);color:#000;border-color:var(--ink)}
.btn .arw{transition:transform .2s}
.btn:hover .arw{transform:translateX(3px)}

/* full-bleed escape hatch — breaks out of any column to the viewport edge */
.bleed{width:100vw;margin-left:calc(50% - 50vw)}

/* scroll reveal */
.rv{opacity:0;transform:translateY(14px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}