/* Mensara public site, sub-page system (about, how it works, guides, docs, legal).
   Ported verbatim from review/mensara-design-v3 (about.html <style>, final build handoff, 2026-10-02)
   so a design revision can be re-applied by diffing. Rails-only additions live in site/site.css.
   Loaded only by layouts/site.html.erb, never by the authenticated portal. */

/* Mensara 3d design system: sub-page. Tokens, header, footer and thread are shared with option-3d-stage-thread.html. */
:root{
  --white:#FFFFFF;
  --lav:#F4F1FA;
  --lav-line:#E3DDEF;
  --ink:#1B1726;
  --ink-2:#4A4458;
  --ink-3:#5E5870;
  --line:#E6E2EE;
  --line-strong:#CEC7DC;
  --aub:#2A2440;
  --aub-band:#221D36;
  --aub-2:#3A3258;
  --aub-line:#4D4470;
  --on-dark:#F5F2EC;
  --on-dark-2:#CFC7E6;
  --gold-lt:#E2C58A;
  --foil:#C9A86A;
  --foil-2:#D9BC7E;
  --gold:#C88935;         /* presence dot and the thread */
  --gold-hi:#E7AE55;      /* the bead, and a tap while it is in use */
  --gold-ink:#8A5A14;
  --ember:#D98324;
  --ember-hover:#E3913A;
  --ok-ink:#1B6234; --add-bg:#E7F4EA;
  --del-ink:#8E2A1B; --del-bg:#F9E9E5;
  --display:"Familjen Grotesk", "Instrument Sans", system-ui, sans-serif;
  --sans:"Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono:"Geist Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --wrap:1200px;
  --gutter:clamp(16px, 4vw, 40px);
  --r-stage:6px;
  --shadow:0 1px 2px rgba(27,23,38,.06), 0 8px 20px -14px rgba(27,23,38,.22);

  /* thread geometry */
  --off:22px;                         /* thread distance from the content edge */
  --R:10px;                           /* thread corner radius, tightened to sit with 6px stages */
  --sp:clamp(14px,2.2vw,26px);        /* stage padding */
  --tin:20px;                         /* hero: thread inset inside the stage */
  --hpl:44px;                         /* hero stage: left padding beside the thread */
  --cl:calc(50% - min(50%, 600px) + var(--gutter));   /* content left, in a full-width box */
  --hcl:calc(50% - min(50%, 600px) + var(--gutter));  /* header content left (the header keeps its gutter) */
  --xr:calc(50% + min(50%, 600px) - var(--gutter) + var(--off));
  --xl:calc(var(--cl) - var(--off));
  --cp:clamp(14px,3vw,40px);          /* convergence stage side padding */
  --wp:clamp(18px,3vw,36px);          /* worked case padding */
  --fp:clamp(20px,3vw,34px);          /* form padding */
  --brandw:97px;                      /* wordmark width, corrected by JS */
}
@media (max-width:900px){
  :root{
    --off:17px;
    --cl:calc(var(--gutter) + 14px);
    --xl:calc(var(--cl) - var(--off));
  }
}
@media (max-width:600px){ :root{ --brandw:86px } }
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
body{position:relative;margin:0;background:var(--white);color:var(--ink);font-family:var(--sans);font-size:18px;line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
@media (max-width:600px){body{font-size:17px;font-variation-settings:"wdth" 86}}
img,svg{display:block;max-width:100%}
a{color:inherit}
p{margin:0 0 1em}
h1,h2,h3{font-family:var(--display);font-weight:700;letter-spacing:-0.03em;line-height:1.04;margin:0;text-wrap:balance}
h2{font-size:clamp(31px,3.7vw,48px)}
h3{font-size:21px;letter-spacing:-0.01em;line-height:1.25}
code,.mono{font-family:var(--mono);font-size:max(14px,.84em);letter-spacing:-0.01em;font-variation-settings:normal}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
@media (max-width:900px){.wrap{padding-left:var(--cl)}.site-header .wrap{padding-left:var(--gutter)}}
.nw{white-space:nowrap}
:focus-visible{outline:3px solid var(--ink);outline-offset:3px;border-radius:6px}
.stage :focus-visible{outline-color:var(--gold-lt)}

.hl{color:var(--gold-ink);background:linear-gradient(var(--foil),var(--foil)) no-repeat 0 92%/100% .09em;padding-bottom:.02em}


/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:0 24px;border-radius:4px;font:650 17px/1 var(--sans);text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:background-color .15s, border-color .15s, transform .15s}
.btn-primary{background:var(--ember);color:var(--ink)}
.btn-primary:hover{background:var(--ember-hover)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-sm{min-height:42px;padding:0 18px;font-size:16px}


/* ---------- header: a full-width aubergine band. The thread leaves its gold dot and drops into the white page ---------- */
.site-header{--bar:76px;--t2:0px;position:sticky;top:0;z-index:50;background:var(--aub);color:var(--on-dark);transition:box-shadow .2s}
.no-js .site-header{position:relative}
.site-header :focus-visible,.site-footer :focus-visible{outline-color:var(--gold-lt)}
.site-header .bar{display:flex;align-items:center;gap:24px;height:var(--bar)}
.site-header.is-condensed{--bar:60px;box-shadow:0 1px 0 var(--aub-line)}
.brand{display:inline-flex;align-items:center;gap:7px;text-decoration:none;font:700 26px/1 var(--display);letter-spacing:-0.035em;color:var(--on-dark)}
.dot{width:9px;height:9px;border-radius:50%;background:var(--gold);display:inline-block;transform:translateY(5px)}
/* the first stretch of the thread: from the logo's dot to the band's lower edge */
.site-header .dot{position:relative}
.site-header .dot::after{content:"";position:absolute;left:3.5px;top:9px;width:2px;height:calc(var(--bar) / 2 - 9.5px + var(--t2) + 3px);background:var(--gold);pointer-events:none}
.nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav > a:not(.btn), .menu > summary{display:inline-flex;align-items:center;min-height:44px;font:500 16px/1 var(--sans);color:var(--on-dark);text-decoration:none;padding:0 10px;cursor:pointer;list-style:none;text-decoration-thickness:2px;text-underline-offset:7px}
.nav > a:not(.btn):hover, .menu > summary:hover, .menu[open] > summary{color:var(--gold-lt);text-decoration-line:underline;text-decoration-color:var(--gold)}
.menu{position:relative}
.menu > summary::-webkit-details-marker{display:none}
.menu > summary::after{content:"";display:inline-block;width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:translateY(-3px) rotate(45deg);margin-left:9px}
.menu-panel{position:absolute;top:calc(100% + 12px);left:-8px;width:320px;background:var(--aub-band);color:var(--on-dark);border:1px solid var(--aub-line);border-radius:4px;box-shadow:0 14px 30px -18px rgba(0,0,0,.55);padding:10px}
.menu-panel a{display:block;padding:10px 12px;border-radius:3px;text-decoration:none;color:var(--on-dark)}
.menu-panel a:hover{background:var(--aub-2)}
.menu-panel strong{display:block;font-weight:600;font-size:16px}
.menu-panel .group{font-size:14px;font-weight:600;color:var(--on-dark-2);padding:10px 12px 4px;border-top:1px solid var(--aub-line);margin-top:6px}
.nav .surface{margin-left:14px}
.nav .btn{margin-left:14px}
.mobile-menu{display:none;margin-left:auto}
@media (max-width:900px){
  .site-header{--bar:64px;--t2:0px}
  .site-header .bar{gap:10px}
  .site-header.is-condensed{--bar:56px}
  .nav{display:none}
  .mobile-menu{display:flex;align-items:center;gap:6px}
}
.mobile-menu details > summary{list-style:none;cursor:pointer;display:grid;place-items:center;width:44px;height:44px;margin-right:-10px;color:var(--on-dark)}
.mobile-menu details > summary::-webkit-details-marker{display:none}
.mobile-menu details > summary svg{width:22px;height:22px}
.mobile-menu details > summary:hover,.mobile-menu details[open] > summary{color:var(--gold-lt)}
.mobile-menu details[open] .burger-lines{display:none}
.mobile-menu details:not([open]) .burger-x{display:none}
.mobile-menu .sheet{position:absolute;left:0;right:0;top:100%;background:var(--aub);color:var(--on-dark);border-top:1px solid var(--aub-line);border-bottom:1px solid var(--aub-line);padding:4px var(--gutter) 20px}
.mobile-menu .sheet a:not(.btn){display:flex;align-items:center;min-height:48px;border-bottom:1px solid var(--aub-line);text-decoration:none;font-weight:500;font-size:17px;color:var(--on-dark)}
.mobile-menu .sheet a.sub{padding-left:16px;color:var(--on-dark-2);font-weight:400;font-size:16px}
.mobile-menu .sheet .btn{width:100%;margin-top:18px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- Human | Machine: on every page, in the header and the footer ---------- */
/* thin control: 30px visible, with an invisible 44px hit area above and below each segment */
.surface{display:inline-flex;align-items:stretch;flex:none;border:1.5px solid #A99FCE;border-radius:4px}
.seg{position:relative;display:inline-flex;align-items:center;height:30px;padding:0 10px;font:600 14px/1 var(--sans);color:var(--on-dark-2);text-decoration:none;white-space:nowrap}
.seg::after{content:"";position:absolute;left:0;right:0;top:-7px;bottom:-7px}
.seg:first-child{border-radius:2.5px 0 0 2.5px}
.seg:last-child{border-radius:0 2.5px 2.5px 0}
.seg + .seg{border-left:1px solid #A99FCE}
.seg:hover{color:var(--on-dark);background:var(--aub-2)}
.seg[aria-pressed="true"]{background:var(--on-dark);color:var(--aub)}
.seg[aria-pressed="true"]:hover{background:var(--on-dark)}
.seg:focus-visible{outline-offset:2px}
@media (max-width:370px){.seg{padding:0 8px}}


/* ================= THE THREAD ================= */
.lead{position:absolute;left:0;top:0;width:100%;height:0;z-index:49;pointer-events:none;
  --dx:calc(var(--hcl) + var(--brandw) + 11.5px); --hh:76px; --yh:100px; --xm:var(--xl)}
@media (max-width:900px){.lead{--hh:64px; --yh:84px}}
.ld-b{position:absolute;left:calc(var(--dx) - var(--R));top:var(--hh);width:calc(var(--R) + 1px);height:calc(var(--yh) - var(--hh) + 1px);border-right:2px solid var(--gold);border-bottom:2px solid var(--gold);border-bottom-right-radius:var(--R)}
.ld-a{position:absolute;left:calc(var(--xm) - 1px);top:calc(var(--yh) - 1px);width:calc(var(--dx) - var(--R) - var(--xm) + 1px);height:130px;border-top:2px solid var(--gold);border-left:2px solid var(--gold);border-top-left-radius:var(--R)}


.stage{position:relative;background:var(--aub);color:var(--on-dark);border-radius:var(--r-stage);padding:var(--sp)}
.stage::before{content:"";position:absolute;top:0;left:clamp(22px,3vw,36px);width:64px;height:4px;border-radius:0 0 4px 4px;background:var(--foil)}
.stage-label{display:inline-flex;align-items:center;gap:9px;font:650 15px/1.2 var(--sans);color:var(--gold-lt)}
.stage-label::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gold)}


/* ---------- stamps ---------- */
.stamp{--r:-3deg;display:inline-flex;align-items:center;gap:7px;font:700 14px/1 var(--display);letter-spacing:.07em;text-transform:uppercase;padding:8px 11px 7px;border-radius:7px;white-space:nowrap;transform:rotate(var(--r));transform-origin:50% 60%}
.stamp::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor;flex:none}
.stamp.held{--r:-4deg;background:var(--aub);color:var(--gold-lt);box-shadow:inset 0 0 0 3px var(--aub), inset 0 0 0 4px var(--gold-lt)}
.stamp.approved{--r:3deg;background:var(--foil-2);color:var(--aub);box-shadow:inset 0 0 0 3px var(--foil-2), inset 0 0 0 4px var(--aub)}
.stamp.refused{--r:-2deg;background:var(--white);color:var(--del-ink);box-shadow:inset 0 0 0 1.5px var(--del-ink), inset 0 0 0 3.5px var(--white), inset 0 0 0 4.5px var(--del-ink)}
.stamp.proposed{--r:-1.5deg;background:var(--white);color:var(--ink-2);box-shadow:inset 0 0 0 1.5px var(--line-strong)}
.stamp.pressed{animation:press .5s cubic-bezier(.2,.8,.3,1) both}
@keyframes press{
  0%{opacity:0;transform:translateY(-16px) scale(1.7) rotate(calc(var(--r) - 9deg))}
  55%{opacity:1;transform:translateY(0) scale(.93) rotate(var(--r))}
  78%{transform:scale(1.03) rotate(var(--r))}
  100%{opacity:1;transform:scale(1) rotate(var(--r))}
}


section{scroll-margin-top:72px}
.section{padding:clamp(64px,8vw,112px) 0}
.section.tight{padding:clamp(52px,6vw,84px) 0}
.band{background:var(--lav)}
.eyebrow{font:600 16px/1.3 var(--sans);color:var(--gold-ink);margin:0 0 16px;display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--foil)}

/* footer: a full-bleed aubergine band that matches the header. The thread ends in its gold dot. */
.site-footer{position:relative;background:var(--aub);color:var(--on-dark);padding:72px 0 36px;
  --fch:30px; --fdx:calc(var(--cl) + var(--brandw) + 11.5px); --fdy:90px}
.site-footer .dot{position:relative;z-index:1}
.ft-a,.ft-b{position:absolute;pointer-events:none;border:0 solid var(--gold)}
.ft-a{top:0;left:calc(var(--fdx) + var(--R));width:calc(var(--xr) - var(--fdx) - var(--R) + 1px);height:calc(var(--fch) + 1px);border-right-width:2px;border-bottom-width:2px;border-bottom-right-radius:var(--R)}
.ft-b{left:calc(var(--fdx) - 1px);top:calc(var(--fch) - 1px);width:calc(var(--R) + 1px);height:calc(var(--fdy) - var(--fch) + 1px);border-left-width:2px;border-top-width:2px;border-top-left-radius:var(--R)}
@media (max-width:900px){
  .site-footer{padding-top:64px;--fdy:82px}
  .ft-a{left:calc(var(--xl) - 1px);width:calc(var(--fdx) - var(--R) - var(--xl) + 1px);border-right-width:0;border-left-width:2px;border-bottom-right-radius:0;border-bottom-left-radius:var(--R)}
  .ft-b{left:calc(var(--fdx) - var(--R));border-left-width:0;border-right-width:2px;border-top-left-radius:0;border-top-right-radius:var(--R)}
}
.f-grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px 48px;align-items:start}
.f-line{margin:16px 0 0;color:var(--on-dark-2);font-size:17px;line-height:1.5;max-width:30em}
.f-links{display:flex;gap:16px 64px}
.f-links ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.f-links a{color:var(--on-dark);text-decoration:none;font-size:16px;line-height:1.4}
.f-links a:hover{text-decoration:underline;text-decoration-color:var(--foil);text-underline-offset:3px}
.f-base{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px 24px;border-top:1px solid var(--aub-2);padding-top:24px;margin-top:24px}
.f-copy{margin:0;color:var(--on-dark-2);font-size:15px}
@media (max-width:760px){.f-grid{grid-template-columns:1fr}.f-links{flex-wrap:wrap;gap:16px 44px}.f-base{margin-top:8px}}


/* ---------- the machine surface: the same page as clean Markdown ---------- */
#machine{display:none}
.machine #human{display:none}
.machine #machine{display:block}
.machine .lead,.machine .site-header .dot::after,.machine .ft-a,.machine .ft-b{display:none}
.mv{padding:clamp(40px,6vw,72px) 0 clamp(56px,7vw,96px)}
.mv-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px 20px;max-width:832px}
.mv-note{margin:0;font-size:17px;color:var(--ink-2)}
.mv-actions{display:flex;align-items:center;gap:14px}
.copy-status{font-size:15px;color:var(--ok-ink);min-width:4em}
.mv-doc{margin:22px 0 0;max-width:calc(80ch + 66px);font:400 16px/1.65 var(--mono);color:var(--ink);background:#FBFAFE;border:1px solid var(--lav-line);border-radius:4px;padding:32px;white-space:pre-wrap;overflow-wrap:anywhere}
@media (max-width:600px){.mv-doc{font-size:15px;padding:20px 16px}}



/* ================= sub-pages: the thread runs from the header dot, down the left margin, into the footer dot ================= */
.pg{position:relative}
.pg::before{content:"";position:absolute;left:calc(var(--xl) - 1px);top:calc(var(--yh) - var(--hh));bottom:0;width:2px;background:var(--gold);pointer-events:none;
  --hh:76px; --yh:100px}
@media (max-width:900px){.pg::before{--hh:64px; --yh:84px}}
/* the footer: always the left-margin route on these pages */
.ft-a{left:calc(var(--xl) - 1px);width:calc(var(--fdx) - var(--R) - var(--xl) + 1px);border-right-width:0;border-left-width:2px;border-bottom-right-radius:0;border-bottom-left-radius:var(--R)}
.ft-b{left:calc(var(--fdx) - var(--R));border-left-width:0;border-right-width:2px;border-top-left-radius:0;border-top-right-radius:var(--R)}
/* a stage hangs off the thread by a short branch through its left wall */
.hk{position:absolute;top:var(--hky,34px);right:100%;width:calc(var(--off) + 1px);height:2px;background:var(--gold);pointer-events:none}
.hk::before{content:"";position:absolute;left:-4px;top:-3px;width:8px;height:8px;border-radius:50%;background:var(--gold)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.nav a[aria-current="page"], .menu.is-current > summary{color:var(--on-dark);text-decoration-line:underline;text-decoration-color:var(--gold)}
a.ext::after{content:" \2197";font-size:.8em}

/* page hero */
.phero{padding:clamp(48px,6vw,88px) 0 clamp(48px,6vw,80px)}
.crumbs{font-size:15px;color:var(--ink-3);margin:0 0 22px;display:flex;flex-wrap:wrap;gap:4px 10px}
.crumbs a{color:var(--ink-2);text-underline-offset:3px}
.crumbs span[aria-hidden]{color:var(--ink-3)}
.phero h1{font-size:clamp(40px,5.4vw,68px);letter-spacing:-0.045em;line-height:1;max-width:14em}
.standfirst{font-size:clamp(19px,1.7vw,22px);line-height:1.5;color:var(--ink-2);max-width:34em;margin:24px 0 0}
.value{font:700 clamp(30px,3.6vw,46px)/1.12 var(--display);letter-spacing:-0.03em;color:var(--ink);max-width:24em;margin:0;text-wrap:pretty}
.value-sub{font-size:18px;color:var(--ink-3);margin:22px 0 0}
h2.sh{font-size:clamp(30px,3.4vw,44px);letter-spacing:-0.035em}

/* ruled rows: title on the left, text on the right */
.rows{border-top:2px solid var(--ink);margin-top:28px}
.rows > div{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:6px 32px;padding:22px 0;border-bottom:1px solid var(--line-strong);align-items:baseline}
.rows h3{font-size:22px;letter-spacing:-0.02em;line-height:1.25;display:flex;gap:10px;align-items:baseline}
.rows h3::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gold);flex:none;transform:translateY(-3px)}
.rows p{margin:0;color:var(--ink-2);max-width:34em}
@media (max-width:760px){.rows > div{grid-template-columns:1fr}}
.split2 .rows > div{grid-template-columns:1fr;gap:6px}
.split2 .rows p{max-width:34em}
.split2{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:clamp(24px,5vw,72px);align-items:start}
@media (max-width:900px){.split2{grid-template-columns:1fr}}

/* founder stage */
.founder{display:grid;grid-template-columns:1fr;gap:clamp(24px,3vw,36px);padding:clamp(28px,4vw,52px)}
.founder .bio{max-width:35em}
.founder blockquote{max-width:30em}
.founder .who{display:grid;grid-template-columns:64px minmax(0,1fr);gap:16px;align-items:start}
.founder .av{width:64px;height:64px;border-radius:4px;background:var(--gold);color:var(--aub);display:grid;place-items:center;font:700 20px/1 var(--display)}
.founder .bio{margin:0;color:var(--on-dark-2);font-size:17px;line-height:1.55}
.founder .bio b{color:var(--on-dark);font-weight:650}
.founder blockquote{margin:0;font:600 clamp(22px,2.3vw,28px)/1.35 var(--display);letter-spacing:-0.015em;color:var(--on-dark);position:relative;padding-top:6px}
.founder .links{display:flex;gap:22px;margin:18px 0 0 80px}
.founder .links a{color:var(--gold-lt);font-weight:600;text-underline-offset:4px}
@media (max-width:560px){.founder .links{margin-left:0}}

/* numbered steps */
.steps-n{list-style:none;margin:28px 0 0;padding:0;counter-reset:s;max-width:37em}
.steps-n li{counter-increment:s;display:grid;grid-template-columns:46px 1fr;gap:2px 14px;padding:18px 0;border-top:1px solid var(--line-strong)}
.steps-n li:first-child{border-top:2px solid var(--ink)}
.steps-n li::before{content:counter(s);grid-row:span 2;width:36px;height:36px;border-radius:4px;background:var(--aub);color:var(--gold-lt);display:grid;place-items:center;font:700 17px/1 var(--display)}
.steps-n p{margin:0;color:var(--ink-2)}
.after-steps{margin:22px 0 0;color:var(--ink-2)}
.after-steps a{color:var(--ink);text-underline-offset:3px}
@media (max-width:560px){.steps-n li{grid-template-columns:34px 1fr;gap:4px 10px}.steps-n li::before{width:30px;height:30px;font-size:15px}}

/* key facts: a real table with gold rules */
.facts-t{width:100%;max-width:880px;border-collapse:collapse;margin-top:28px;font-size:17px}
.facts-t caption{text-align:left;font:650 15px/1.3 var(--sans);color:var(--ink-3);padding-bottom:10px}
.facts-t th,.facts-t td{text-align:left;vertical-align:top;padding:14px 0;border-bottom:1px solid var(--foil)}
.facts-t tr:first-child th,.facts-t tr:first-child td{border-top:2px solid var(--gold)}
.facts-t th{width:30%;font:650 17px/1.4 var(--sans);color:var(--ink);padding-right:24px}
.facts-t td{color:var(--ink-2);line-height:1.5}
.facts-t a{color:var(--ink);text-underline-offset:3px}
@media (max-width:560px){.facts-t th,.facts-t td{display:block;width:auto;padding-right:0}.facts-t th{padding-bottom:2px;border-bottom:0}.facts-t td{padding-top:0}.facts-t tr:first-child td{border-top:0}}

/* questions: visible, not accordions */
.faq{max-width:44em;margin-top:20px}
.faq > div{padding:22px 0;border-top:1px solid var(--line-strong)}
.faq > div:first-child{border-top:2px solid var(--ink)}
.faq h3{font-size:22px;letter-spacing:-0.02em;line-height:1.25;margin-bottom:8px}
.faq p{margin:0;color:var(--ink-2);max-width:36em}
.faq a{color:var(--ink);text-underline-offset:3px}

/* the how-it-works system diagram */
.sys{padding:clamp(24px,3.4vw,44px)}
.sys figcaption{max-width:40em}
.sys figcaption b{display:block;font:700 clamp(24px,2.6vw,32px)/1.15 var(--display);letter-spacing:-0.025em;color:var(--on-dark);margin:12px 0 8px}
.sys figcaption p{margin:0;color:var(--on-dark-2);font-size:17px;line-height:1.55;max-width:36em}
.dia{margin-top:clamp(26px,3.4vw,40px)}
.dia .row{display:grid;gap:12px}
.chip{position:relative;background:var(--white);color:var(--ink);border-radius:4px;padding:12px 14px;font-size:15px;line-height:1.35}
.chip b{display:block;font:700 16px/1.25 var(--display);letter-spacing:-0.01em}
.chip span{color:var(--ink-3);font-size:14px}
.dia .row{position:relative;grid-template-columns:repeat(var(--n),minmax(0,1fr));max-width:820px;margin-left:auto;margin-right:auto}
.dia .rin{max-width:720px}
.dia .rlast{max-width:560px}
.dia .rin::after,.dia .rtop::after{content:"";position:absolute;left:calc((100% - (var(--n) - 1) * 12px) / (2 * var(--n)));right:calc((100% - (var(--n) - 1) * 12px) / (2 * var(--n)));height:2px;background:var(--gold)}
.dia .rin::after{top:calc(100% + 18px)}
.dia .rtop{margin-top:20px}
.dia .rtop::after{top:-20px}
.rin .chip{text-align:center}
.rin .chip::after,.rtop .chip::before{content:"";position:absolute;left:50%;width:2px;margin-left:-1px;height:18px;background:var(--gold)}
.rin .chip::after{top:100%}
.rtop .chip::before{bottom:100%}
.dia-l{margin:0 0 12px;text-align:center;color:var(--on-dark-2);font-size:15px}
.stem{width:2px;height:22px;background:var(--gold);margin:0 auto}
.stem.s1{margin-top:20px}
.gate{max-width:420px;margin:0 auto;text-align:center;border:2px solid var(--gold);border-radius:4px;padding:14px 18px;background:var(--aub-band)}
.gate b{display:block;font:700 18px/1.25 var(--display);color:var(--on-dark)}
.gate span{color:var(--on-dark-2);font-size:15px}
@media (max-width:760px){
  .dia .row{grid-template-columns:1fr;max-width:none}
  .dia .rin::after,.dia .rtop::after,.rin .chip::after,.rtop .chip::before{display:none}
  .dia-l{text-align:left}
  .stem.s1{margin-top:0}
  .dia .row{border-left:2px solid var(--gold);padding-left:14px;gap:10px}
  .rin .chip{text-align:left}
  .stem{margin:0 0 0 0;height:20px}
  .gate{margin:0;text-align:left}
  .dia .rtop{margin-top:0}
}

/* the guide index: groups as ruled sections, not a wall of cards */
.groups{margin-top:clamp(40px,5vw,64px)}
.grp{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:12px clamp(24px,5vw,72px);padding:clamp(28px,3.4vw,40px) 0;border-top:2px solid var(--ink)}
.grp h2{font-size:clamp(26px,2.6vw,34px);letter-spacing:-0.03em;line-height:1.1}
.grp .gi{margin:10px 0 0;color:var(--ink-3);font-size:17px;max-width:22em}
.glist{list-style:none;margin:0;padding:0}
.glist li{padding:16px 0;border-bottom:1px solid var(--line-strong)}
.glist li:first-child{padding-top:4px}
.glist li:last-child{border-bottom:0}
.glist a{font:700 21px/1.3 var(--display);letter-spacing:-0.015em;color:var(--ink);text-decoration:none}
.glist a:hover{text-decoration:underline;text-decoration-color:var(--gold);text-underline-offset:4px}
.glist p{margin:6px 0 0;color:var(--ink-2);max-width:33em}
.glist li.built a::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--gold);margin-right:10px;transform:translateY(-3px)}
@media (max-width:900px){.grp{grid-template-columns:1fr}}
.refs{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px 28px}
.refs a{font-weight:600;color:var(--ink);text-underline-offset:3px}

/* closing call to action */
.cta{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:20px 40px;padding:clamp(28px,4vw,48px)}
.cta h2{font-size:clamp(28px,3vw,38px);letter-spacing:-0.03em;color:var(--on-dark)}
.cta p{margin:12px 0 0;color:var(--on-dark-2);max-width:34em}
.cta .stage-label{margin-bottom:12px}

/* guide template: prose on the left, the Guides rail on the right */
.gwrap{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:clamp(32px,5vw,80px);align-items:start}
@media (max-width:1000px){.gwrap{grid-template-columns:1fr}}
.gprose{min-width:0}
.gprose > p,.gprose > h2,.gprose > .pn{max-width:31em}
.gprose .stage p{color:var(--on-dark-2)}
.gprose .stage .stage-label{color:var(--gold-lt)}
.gprose .cta h2{margin:0}
.gprose .stage .perm p,.gprose .stage .flowc p{color:var(--ink-2)}
.gprose h2{font-size:clamp(26px,2.6vw,32px);letter-spacing:-0.025em;line-height:1.15;margin:44px 0 14px}
.gprose p{color:var(--ink-2);margin:0 0 1em}
.gprose p b{color:var(--ink)}
.gprose .note{color:var(--ink);border-left:3px solid var(--foil);padding-left:16px}
.gprose .related a{color:var(--ink);text-underline-offset:3px}
.gfig{margin:36px 0 8px;max-width:none}
.gfig .stage-label{margin-bottom:6px}
.gfig figcaption b{display:block;font:700 clamp(22px,2.2vw,26px)/1.2 var(--display);letter-spacing:-0.02em;color:var(--on-dark);margin:8px 0 6px}
.gfig figcaption p{margin:0;color:var(--on-dark-2);font-size:16px;line-height:1.5;max-width:33em}
.perm{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:22px}
.perm > div{background:var(--white);color:var(--ink);border-radius:4px;padding:16px}
.perm h3{font-size:19px;letter-spacing:-0.015em;line-height:1.25;margin:10px 0 6px}
.perm p{margin:0;color:var(--ink-2);font-size:16px;line-height:1.45}
.perm .stamp{transform:none}
@media (max-width:700px){.perm{grid-template-columns:1fr}}
.flowc{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:22px}
.flowc > div{background:var(--white);color:var(--ink);border-radius:4px;padding:16px}
.flowc h3{font-size:19px;letter-spacing:-0.015em;line-height:1.25;margin:0 0 6px}
.flowc p{margin:0;color:var(--ink-2);font-size:16px;line-height:1.45}
.flowc .stamp{margin-bottom:12px}
.flowc .arrow{grid-column:1 / -1;display:flex;justify-content:center}
.flowc .arrow::before{content:"";width:2px;height:22px;background:var(--gold)}
@media (max-width:700px){.flowc{grid-template-columns:1fr}}
.pn{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:40px}
.pn a{display:block;border:1px solid var(--line-strong);border-radius:4px;padding:16px 18px;text-decoration:none;color:var(--ink)}
.pn a:hover{border-color:var(--ink)}
.pn small{display:block;font-size:14px;font-weight:600;color:var(--ink-3);margin-bottom:4px}
.pn b{font:700 18px/1.3 var(--display);letter-spacing:-0.01em}
.pn .next{text-align:right;grid-column:2}
.pn span{display:block;margin-top:6px;font-size:15px;line-height:1.45;color:var(--ink-2)}
@media (max-width:560px){.pn{grid-template-columns:1fr}.pn .next{grid-column:1;text-align:left}}
.rail{position:sticky;top:96px;font-size:15px;line-height:1.4}
.rail h2,.rail-m summary{font:650 15px/1.2 var(--sans);color:var(--gold-ink)}
.rail ol{list-style:none;margin:0;padding:0}
.rail .g{font-weight:650;color:var(--ink);margin:16px 0 6px}
.rail li a{display:block;padding:5px 0 5px 12px;border-left:2px solid var(--line);color:var(--ink-2);text-decoration:none}
.rail li a:hover{color:var(--ink);border-left-color:var(--ink-3)}
.rail li a[aria-current="page"]{border-left-color:var(--gold);color:var(--ink);font-weight:650}
.rail-m{display:none;margin:0 0 28px;border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong)}
.rail-m summary{cursor:pointer;min-height:48px;display:flex;align-items:center;list-style:none}
.rail-m summary::-webkit-details-marker{display:none}
.rail-m summary::after{content:"";width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg);margin-left:10px}
.rail-m .rail{position:static;padding-bottom:16px}
@media (max-width:1000px){.gwrap > .rail{display:none}.rail-m{display:block}}
.gcta{margin-top:56px}
.phero h1.a-h1{font-size:16px;letter-spacing:0;line-height:1.3;max-width:none;margin-bottom:22px}
.blist{list-style:none;margin:0;padding:0;border-top:2px solid var(--ink)}
.blist li{position:relative;padding:20px 0 20px 22px;border-bottom:1px solid var(--line-strong);color:var(--ink-2);max-width:35em}
.blist li::before{content:"";position:absolute;left:0;top:31px;width:8px;height:8px;border-radius:50%;background:var(--gold)}
.blist b{color:var(--ink);font-weight:650}
.blist a{color:var(--ink);text-underline-offset:3px}


/* ================= minis: small product snippets that play once, with Pause and Replay ================= */
.mini{padding:clamp(18px,2.6vw,30px)}
.mini-head{display:flex;align-items:center;justify-content:space-between;gap:10px 16px;flex-wrap:wrap;margin-bottom:18px}
.mini .controls{display:flex;gap:8px}
.no-js .mini .controls,.no-js .sys .controls{display:none}
.ctl{display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 12px;border-radius:4px;border:1.5px solid var(--aub-line);background:transparent;font:600 14px/1 var(--sans);color:var(--on-dark);cursor:pointer}
.ctl:hover{border-color:var(--gold-lt)}
.ctl svg{width:12px;height:12px}
.m-lanes{display:grid;grid-template-columns:repeat(var(--n),minmax(0,1fr));gap:12px;position:relative}
.m-lanes::after{content:"";position:absolute;top:100%;height:2px;background:var(--gold);
  left:calc((100% - (var(--n) - 1) * 12px) / (2 * var(--n)));right:calc((100% - (var(--n) - 1) * 12px) / (2 * var(--n)))}
.m-lane{display:flex;flex-direction:column;min-width:0}
.m-lane > .m-card,.m-lane > .m-win{flex:1}
.m-card{background:var(--white);color:var(--ink);border-radius:4px;padding:12px;display:flex;flex-direction:column;align-items:flex-start;gap:6px;transition:box-shadow .3s}
.m-card b{font:700 16px/1.2 var(--display);letter-spacing:-0.01em}
.m-card .role{font-size:14px;line-height:1.3;color:var(--ink-3)}
.m-card .m-line{font-size:14px;line-height:1.35;color:var(--ok-ink);font-weight:600}
.m-agent{font:600 14px/1 var(--sans);background:var(--lav);color:var(--ink);border-radius:3px;padding:5px 7px}
.m-card .stamp,.m-mem .stamp{margin-top:4px}
.active{box-shadow:0 0 0 2px var(--foil)}
.m-rail{display:block;position:relative;width:2px;height:22px;margin:0 auto;background:var(--gold);transition:background-color .25s,width .25s}
.m-rail::after{content:"";position:absolute;left:50%;bottom:-4px;width:8px;height:8px;margin-left:-4px;border-radius:50%;background:var(--gold)}
.m-rail.lit{background:var(--gold-hi);width:4px}
.m-stub{display:block;width:2px;height:22px;margin:0 auto;background:var(--gold)}
.m-gate{max-width:300px;margin:0 auto;border:2px solid var(--gold);border-radius:4px;padding:9px 12px;text-align:center;background:var(--aub-band);transition:border-color .25s,background-color .25s}
.m-gate b{display:block;font:700 15px/1.25 var(--display);color:var(--on-dark)}
.m-gate span{font-size:14px;color:var(--on-dark-2)}
.m-gate.lit{border-color:var(--gold-hi);background:var(--aub-2)}
.m-mem{max-width:480px;margin:0 auto;background:var(--aub-band);border:1px solid var(--aub-line);border-radius:4px;padding:12px 14px;display:flex;flex-direction:column;align-items:flex-start;gap:8px}
.m-mem .lbl{font:650 14px/1.2 var(--sans);color:var(--gold-lt)}
.m-mem code{font-size:15px;color:var(--on-dark)}
.m-mem .row2{display:flex;flex-wrap:wrap;gap:8px 10px;align-items:center}
.m-chip{font-family:var(--mono);font-size:14px;line-height:1.3;padding:4px 8px;border-radius:3px}
.m-chip.del{background:var(--del-bg);color:var(--del-ink)}
.m-chip.add{background:var(--add-bg);color:var(--ok-ink)}
.swap{display:inline-grid}
.swap > *{grid-area:1/1;visibility:hidden}
.swap > .on{visibility:visible}
.tagx{font:700 14px/1 var(--display);letter-spacing:.05em;text-transform:uppercase;border-radius:3px;padding:6px 9px 5px;white-space:nowrap;justify-self:start}
.tagx.cur{color:var(--on-dark);box-shadow:inset 0 0 0 1.5px var(--aub-line)}
.tagx.held{color:var(--on-dark-2);box-shadow:inset 0 0 0 1.5px var(--on-dark-2)}
.tagx.ok{color:var(--aub);background:var(--foil-2)}
.stamp.read{--r:-2deg;background:var(--white);color:var(--aub);box-shadow:inset 0 0 0 1.5px var(--aub)}
.stamp.allowed{--r:-2.5deg;background:var(--white);color:var(--aub);box-shadow:inset 0 0 0 1.5px var(--aub), inset 0 0 0 3.5px var(--white), inset 0 0 0 4.5px var(--aub)}
.m-win{background:var(--white);color:var(--ink);border-radius:4px;overflow:hidden;transition:box-shadow .3s}
.m-win .bar{display:flex;align-items:center;gap:8px;padding:9px 12px;border-bottom:1px solid var(--line);background:#FBFAFE;font-size:14px}
.m-win .bar b{font-weight:650}
.m-win .bar span{color:var(--ink-3)}
.m-win .bar em{margin-left:auto;font:650 14px/1 var(--display);font-style:normal}
.m-win .body{padding:12px;display:flex;flex-direction:column;gap:9px;font-size:15px;line-height:1.45}
.m-q{align-self:flex-end;max-width:92%;background:var(--aub);color:var(--on-dark);padding:8px 12px;border-radius:10px 10px 3px 10px}
.m-tool{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);flex-wrap:wrap}
.m-tool code,.m-src code{color:var(--ink);font-size:14px;background:var(--lav);padding:2px 6px;border-radius:3px}
.m-src{display:inline-flex;align-items:center;flex-wrap:wrap;gap:4px 6px;align-self:flex-start;font-size:14px;color:var(--ink-3);border:1px solid var(--line);border-radius:3px;padding:4px 8px}
.bead{position:absolute;left:0;top:0;width:14px;height:14px;margin:-7px 0 0 -7px;border-radius:50%;background:var(--gold-hi);border:2px solid var(--aub);z-index:6;pointer-events:none;opacity:0}
[data-mini].playing [data-k]:not(.on){opacity:0;transform:translateY(5px)}
[data-mini].playing [data-k]{transition:opacity .4s ease,transform .4s ease}
[data-mini].playing [data-stamp]:not(.on){visibility:hidden}
.stamp.pressed{animation:press .5s cubic-bezier(.2,.8,.3,1) both}
[data-mini].resetting *{transition:none !important}
@media (max-width:560px){
  .mini{padding:16px 14px}
  .m-lanes{gap:8px}
  .m-lanes::after{left:calc((100% - (var(--n) - 1) * 8px) / (2 * var(--n)));right:calc((100% - (var(--n) - 1) * 8px) / (2 * var(--n)))}
  .m-card{padding:8px}
  .m-card b{font-size:15px}
  .m-card .stamp{font:700 14px/1 var(--sans);letter-spacing:-0.01em;text-transform:none;padding:5px 6px 4px;--r:-2deg}
  .m-card .stamp::before{display:none}
}

/* the index diagram plays too */
.sys{position:relative}
.sys .controls{position:absolute;top:clamp(18px,2.6vw,30px);right:clamp(18px,2.6vw,30px);display:flex;gap:8px}
@media (max-width:700px){.sys .controls{position:static;margin:14px 0 0}}
.sys .chip .stamp{margin-top:8px}
.sys .chip .m-src{margin-top:8px}
.sys .chip .ql{display:block;margin-top:4px;font-size:14px;line-height:1.35;color:var(--ink-3)}
.dia .rtop{align-items:start}
.dia .rin .chip{display:flex;flex-direction:column;justify-content:center;align-items:center}
@media (max-width:760px){.dia .rin .chip{align-items:flex-start}}
.sys .chip.lit,.gate.lit{box-shadow:0 0 0 3px var(--gold-hi)}

/* static product fragments: small, consistent, aria-hidden */
.frag{background:var(--white);border:1px solid var(--lav-line);border-radius:4px;padding:12px;display:flex;flex-direction:column;gap:8px;font-size:14px;line-height:1.35;color:var(--ink);max-width:300px}
.band .frag{border-color:var(--line-strong)}
.frag .fl{display:flex;align-items:center;gap:8px}
.frag .fl.w{flex-wrap:wrap}
.frag .sq{width:28px;height:28px;border-radius:4px;background:var(--aub);color:var(--gold-lt);display:grid;place-items:center;font:700 14px/1 var(--display);flex:none}
.frag code{font-size:14px;background:var(--lav);padding:2px 6px;border-radius:3px;color:var(--ink)}
.frag .tg{font:600 14px/1 var(--sans);border-radius:3px;padding:5px 7px;background:var(--lav);color:var(--ink)}
.frag .tg.gold{background:var(--foil-2);color:var(--aub)}
.frag .tg.dark{background:var(--aub);color:var(--on-dark)}
.frag .ln{flex:1;height:2px;background:var(--gold);min-width:14px}
.frag .vl{width:2px;height:12px;background:var(--gold);margin-left:13px}
.frag .ck{width:16px;height:16px;border-radius:3px;background:var(--add-bg);display:grid;place-items:center;flex:none}
.frag .ck::after{content:"";width:6px;height:3.5px;border-left:1.6px solid var(--ok-ink);border-bottom:1.6px solid var(--ok-ink);transform:translateY(-1px) rotate(-45deg)}
.frag .stamp{transform:none;padding:6px 8px 5px}
.frag .muted{color:var(--ink-3)}
.frag svg{display:block}
.grp .frag{margin-top:20px}
@media (max-width:900px){.grp .frag{display:none}}

/* about: "what makes it different" rows with a fragment beside each point */
.diffrows{border-top:2px solid var(--ink)}
.diffrows > div{display:grid;grid-template-columns:240px minmax(0,1fr);gap:16px 28px;padding:22px 0;border-bottom:1px solid var(--line-strong);align-items:start}
.diffrows h3{font-size:22px;letter-spacing:-0.02em;line-height:1.25;margin:0 0 6px}
.diffrows p{margin:0;color:var(--ink-2);max-width:34em}
@media (max-width:760px){.diffrows > div{grid-template-columns:1fr}}

/* about: founder photo */
.founder2{display:grid;grid-template-columns:clamp(160px,22vw,240px) minmax(0,1fr);gap:clamp(20px,3vw,40px);align-items:start;padding:clamp(24px,3.6vw,44px)}
.founder2 img{display:block;width:100%;height:auto;aspect-ratio:1/1;object-fit:cover;border-radius:4px}
.founder2 .bio{margin:0;color:var(--on-dark-2);font-size:17px;line-height:1.55;max-width:35em}
.founder2 .bio b{color:var(--on-dark);font-weight:650}
.founder2 .links{display:flex;gap:22px;margin:16px 0 0}
.founder2 .links a{color:var(--gold-lt);font-weight:600;text-underline-offset:4px}
.founder2 blockquote{margin:26px 0 0;font:600 clamp(21px,2.2vw,27px)/1.35 var(--display);letter-spacing:-0.015em;color:var(--on-dark);max-width:30em}
@media (max-width:640px){.founder2{grid-template-columns:1fr}.founder2 img{max-width:240px}}

/* about: the three steps along the gold thread */
.tl{list-style:none;margin:32px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;position:relative;counter-reset:s}
.tl::before{content:"";position:absolute;top:17px;left:18px;right:0;height:2px;background:var(--gold);transform-origin:left center}
.tl li{position:relative;counter-increment:s}
.tl li::before{content:counter(s);position:relative;z-index:1;display:grid;place-items:center;width:36px;height:36px;border-radius:4px;background:var(--aub);color:var(--gold-lt);font:700 17px/1 var(--display);margin-bottom:16px}
.tl strong{display:block;font-weight:650;font-size:18px;margin-bottom:4px}
.tl p{margin:0;color:var(--ink-2);font-size:17px;line-height:1.55}
.motion .tl::before{transform:scaleX(0);transition:transform 1.2s cubic-bezier(.5,0,.3,1)}
.motion .tl li{opacity:0;transform:translateY(10px);transition:opacity .5s ease,transform .5s ease}
.motion .tl li:nth-child(2){transition-delay:.45s}
.motion .tl li:nth-child(3){transition-delay:.9s}
.motion .tl.in::before{transform:none}
.motion .tl.in li{opacity:1;transform:none}
@media (max-width:760px){
  .tl{grid-template-columns:1fr;gap:22px}
  .tl::before{top:18px;bottom:18px;left:17px;right:auto;width:2px;height:auto;transform-origin:center top}
  .motion .tl::before{transform:scaleY(0)}
  .tl li{display:grid;grid-template-columns:36px minmax(0,1fr);gap:0 14px}
  .tl li::before{grid-row:span 2;margin:0}
}
.after-wide{max-width:40em}

/* about: key facts with a status seal */
.seal2{display:flex;align-items:center;gap:14px;margin-top:28px}
.seal2 svg{width:72px;height:72px;flex:none}
.seal2 p{margin:0;font-size:15px;line-height:1.4;color:var(--ink-2)}
.seal2 b{display:block;color:var(--gold-ink);font-size:14px;font-weight:650}
@media (max-width:900px){.seal2{margin:16px 0 8px}}

/* guides: callouts and a pull-quote break up the prose */
.gprose p.note{background:var(--lav);border-left:3px solid var(--gold);padding:16px 18px;border-radius:0 4px 4px 0;color:var(--ink)}
.gprose p.pull{font:600 clamp(22px,2.3vw,26px)/1.38 var(--display);letter-spacing:-0.015em;color:var(--ink);max-width:24em;margin:28px 0;padding-top:16px;border-top:2px solid var(--gold)}
.gmini{margin:32px 0}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation:none !important;transition:none !important}html{scroll-behavior:auto}}