/* ============================================================
   Avanti — shared design system (avanti.css)
   Single source of truth for tokens, type, surfaces, motion,
   nav, buttons, proof bars, footer, mobile menu, reduced-motion.
   Page-specific rules (voxel hero, playground grid, canvas) stay
   local in each page's inline <style>.
   ============================================================ */

/* ---------- Design tokens ---------- */
:root{
  /* surfaces (warm paper stack) */
  --bg:#f9f7f6; --paper:#fffdfb; --raised:#f0edea; --sunk:#e9e7e4;
  --ink:#1a1a1a; --ink-2:#111; --muted:#595959;
  /* borders — hairlines */
  --line:rgba(30,20,10,.10); --line-soft:rgba(30,20,10,.06);
  /* brand + status */
  --accent:#ff4f38; --accent-soft:#ffe0d9; --accent-55:rgba(255,79,56,.55);
  --blue:#56728f; --hi:#2f9e57; --grn:#2f9e57; --mid:#e9b24a; --amber:#e9b24a; --lo:#c0392b; --red:#c0392b;
  --console:#121210;
  /* radii — standardized */
  --rad:12px; --rad-lg:18px;
  /* shadows — 2-layer soft system */
  --shadow:0 1px 2px rgba(30,20,10,.04),0 12px 32px -16px rgba(30,20,10,.18);
  --shadow-lift:0 2px 4px rgba(30,20,10,.05),0 24px 60px -24px rgba(30,20,10,.26);
  --shadow-accent:0 2px 4px rgba(255,79,56,.25),0 16px 32px -12px rgba(255,79,56,.55);
  /* 8px spacing rhythm */
  --s1:8px; --s2:16px; --s3:24px; --s4:32px; --s5:48px; --s6:72px; --s7:96px;
  --measure:56ch;
  /* type families */
  --font-display:'Fraunces',Georgia,'Times New Roman',serif;
  --font-text:'Inter',system-ui,-apple-system,BlinkMacSystemFont,sans-serif;
  --font-mono:'IBM Plex Mono',ui-monospace,Menlo,Consolas,monospace;
  /* legacy aliases so page-local rules keep working */
  --font:var(--font-text); --card:var(--paper); --mut:var(--muted); --acc:var(--accent);
  /* motion tokens */
  --ease-out:cubic-bezier(.22,.61,.36,1);
  --ease-io:cubic-bezier(.16,1,.3,1);       /* expo-out reveal feel */
  --ease-spring:cubic-bezier(.34,1.56,.64,1);/* micro-interaction overshoot */
  --ease-inout:cubic-bezier(.65,.05,.36,1);
  --dur-fast:140ms; --dur-base:420ms; --dur-slow:640ms; --dur-bar:900ms; --stagger:70ms;
}

/* ---------- Base ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font-text);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
  font-feature-settings:'ss01','cv05';letter-spacing:-0.006em;
}
a{color:inherit;text-decoration:none}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- Typography scale ---------- */
h1{
  font-family:var(--font-display);font-optical-sizing:auto;font-weight:560;
  font-size:clamp(40px,6vw,64px);line-height:1.02;letter-spacing:-0.02em;
  margin:12px 0 14px;
}
.stitle,h2{
  font-family:var(--font-display);font-optical-sizing:auto;font-weight:560;
  font-size:clamp(28px,3.6vw,40px);line-height:1.08;letter-spacing:-0.015em;margin:0 0 8px;
}
.lead{
  font-family:var(--font-text);font-style:normal;font-weight:400;
  font-size:clamp(17px,2vw,20px);line-height:1.5;color:#4a443d;max-width:46ch;margin:0 0 26px;
}
p{line-height:1.6}
/* mono "instrument" register — kickers, eyebrows, labels */
.kick,.eyebrow,.tag,.hpt,.heldstrip .chip,.proofstrip b.lbl{
  font-family:var(--font-mono);
}
.kick{font-size:11px;letter-spacing:.14em;color:var(--accent-55);text-transform:uppercase;
  font-weight:500;display:inline-flex;align-items:center;gap:8px}
.eyebrow{font-family:var(--font-mono);font-weight:500;font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);margin:0 0 10px;display:flex;align-items:center;gap:10px}
.eyebrow .num{color:var(--accent);font-weight:500}
.eyebrow .bar{flex:0 0 26px;height:1px;background:var(--accent-55)}

/* ============================================================
   Nav (shared)
   ============================================================ */
.avx-nav{position:sticky;top:0;z-index:60;display:flex;align-items:center;justify-content:space-between;
  padding:14px 32px;max-width:1200px;margin:0 auto}
.navbg{position:fixed;top:0;left:0;right:0;height:60px;z-index:55;
  background:rgba(249,247,246,.72);backdrop-filter:saturate(1.15) blur(14px);-webkit-backdrop-filter:saturate(1.15) blur(14px);
  border-bottom:1px solid transparent;opacity:0;transition:opacity .25s,border-color .25s,transform 260ms var(--ease-out);pointer-events:none}
.navbg.on{opacity:1;border-color:var(--line)}
.bd{font-family:var(--font-display);font-optical-sizing:auto;font-weight:600;font-size:22px;display:inline-flex;align-items:baseline;letter-spacing:-.01em}
.bd .dot{color:var(--accent)}
.px{font-family:var(--font-mono);font-size:10px;color:var(--muted);letter-spacing:.12em;margin-left:8px;white-space:nowrap}
.navlinks{display:flex;gap:22px;align-items:center}
.navlinks a.lk{font-family:var(--font-text);font-size:13px;font-weight:500;color:var(--muted);position:relative;transition:color .18s}
.navlinks a.lk:hover,.navlinks a.lk.on{color:var(--ink)}
.navlinks a.lk.pf{color:var(--accent)}
.navlinks a.lk::after{content:"";position:absolute;left:0;bottom:-4px;height:1.5px;width:0;background:var(--accent);transition:width var(--dur-base) var(--ease-io)}
.navlinks a.lk:hover::after,.navlinks a.lk.active::after{width:100%}

/* mobile disclosure menu */
.navtoggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:0;cursor:pointer;color:var(--ink);padding:0;-webkit-tap-highlight-color:transparent}
.navtoggle svg{width:22px;height:22px;display:block}
.navtoggle .l1,.navtoggle .l2,.navtoggle .l3{transition:transform 220ms var(--ease-out),opacity 220ms var(--ease-out);transform-origin:center}
.navtoggle[aria-expanded="true"] .l1{transform:translateY(6px) rotate(45deg)}
.navtoggle[aria-expanded="true"] .l2{opacity:0}
.navtoggle[aria-expanded="true"] .l3{transform:translateY(-6px) rotate(-45deg)}

@media(max-width:820px){
  .navtoggle{display:inline-flex}
  .navlinks{position:absolute;top:60px;left:0;right:0;flex-direction:column;align-items:stretch;gap:8px;
    background:var(--paper);border-bottom:1px solid var(--line);padding:16px 32px;
    box-shadow:var(--shadow);
    opacity:0;transform:translate3d(0,-8px,0);pointer-events:none;transition:opacity var(--dur-base) var(--ease-io),transform var(--dur-base) var(--ease-io)}
  .navlinks.open{opacity:1;transform:none;pointer-events:auto}
  .navlinks a.lk{display:block;font-size:15px;padding:6px 0}
  .navlinks a.lk::after{display:none}
  .navlinks .btn.primary{align-self:flex-start;margin-top:6px}
}
@media(max-width:430px){ .px{display:none} }

/* ============================================================
   Buttons (shared)
   ============================================================ */
.btn{font-family:var(--font-text);font-weight:500;font-size:13px;padding:10px 16px;border-radius:9px;
  border:1px solid var(--line);color:var(--ink);background:var(--paper);cursor:pointer;display:inline-block;
  transition:transform var(--dur-fast) var(--ease-spring),box-shadow var(--dur-fast) var(--ease-out),background .15s}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift)}
.btn:active{transform:translateY(0) scale(.97);transition-duration:60ms}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent);
  box-shadow:0 8px 22px -12px rgba(255,79,56,.55),inset 0 1px 0 rgba(255,255,255,.25)}
.btn.primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-accent),inset 0 1px 0 rgba(255,255,255,.25);filter:brightness(1.03)}
.btn.big{padding:14px 26px;font-size:15px;font-weight:600}
.icn{stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ============================================================
   Proof bars — unified naming (.avx-bar / .avx-fill / .avx-num)
   Legacy class aliases keep the existing markup working.
   ============================================================ */
.avx-fill,.pbfill,.bigfill,.fill{width:0;transition:width var(--dur-bar) var(--ease-io)}
.avx-fill.raw,.pbfill.raw,.fill.raw{background:linear-gradient(90deg,#e0857a,#d9b7ae)}
.bigfill.raw{background:linear-gradient(90deg,#e0857a,#d9b7ae)}
.avx-fill.cal,.pbfill.cal,.bigfill.cal,.fill.cal{background:linear-gradient(180deg,#ff5c46,#ff4f38);position:relative;overflow:hidden}
.avx-fill.real,.pbfill.real,.bigfill.real,.fill.real{background:var(--ink)}

/* one-time left-to-right shimmer on the Calibrated bar (the emotional payload) */
.bigfill.cal.shine::after,.pbfill.cal.shine::after,.fill.cal.shine::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,transparent 20%,rgba(255,255,255,.45) 50%,transparent 80%);
  transform:translateX(-120%);animation:avxShine 1.2s var(--ease-io) 1 forwards}
@keyframes avxShine{to{transform:translateX(120%)}}

/* accent ring "snap" pulse when calibration lands */
.avx-snap{animation:avxSnap .22s var(--ease-out) 1}
@keyframes avxSnap{0%{box-shadow:0 0 0 0 rgba(255,79,56,.5)}100%{box-shadow:0 0 0 12px rgba(255,79,56,0)}}

/* ============================================================
   Footer (shared)
   ============================================================ */
.avx-footer,footer{color:var(--muted);font-size:12px}
footer a:hover{color:var(--ink)}
.slogan{font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

/* ============================================================
   Motion primitives — shared reveal system
   ============================================================ */
html.js [data-reveal]{opacity:0;transform:translate3d(0,18px,0);will-change:transform,opacity}
html.js [data-reveal].in{opacity:1;transform:none;
  transition:opacity var(--dur-slow) var(--ease-io),transform var(--dur-slow) var(--ease-io)}
html.js [data-reveal="scale"]{transform:translate3d(0,18px,0) scale(.985)}
html.js [data-reveal="left"]{transform:translate3d(-24px,0,0)}
html.js [data-reveal="right"]{transform:translate3d(24px,0,0)}

/* ============================================================
   Reduced motion — global contract (once, shared)
   ============================================================ */
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;animation-iteration-count:1!important}
  html.js [data-reveal]{opacity:1!important;transform:none!important;will-change:auto}
  .bigfill.cal.shine::after,.pbfill.cal.shine::after,.fill.cal.shine::after{display:none!important}
}