/* =========================================================================
   Epoché — the prospectus (landing.html, served stamped at /welcome)
   -------------------------------------------------------------------------
   A standalone marketing site, entirely separate from the app shell. Warm
   paper by day with night-plate moments (the memory lab, the library, the
   final door) that foreshadow the app's black-and-gold observatory. No
   dependency on app.css/plates.css; type is the house pairing — Fraunces
   (300–700 variable) for display, Schibsted Grotesk (400–900) for the
   interface. Controller: landing.js.
   ========================================================================= */

html{scroll-behavior:smooth}
body{margin:0;background:#f8f4ec}

#pr{
  /* paper */
  --paper:#f8f4ec; --paper2:#f1eadb; --card:#fffdf8;
  --ink:#1d1710; --ink2:#5c5344; --ink3:#988c79;
  --line:rgba(29,23,16,.10); --line2:rgba(29,23,16,.18);
  --gold:#a5761f; --gold-deep:#8a6019;
  --gold-soft:rgba(165,118,31,.09);
  /* night plates */
  --night:#0b0e15; --night2:#111624; --nink:#ece7dd; --nink2:#b0a897; --nink3:#786f5f;
  --ngold:#d4b483; --nline:rgba(236,231,221,.12);
  /* field pigments (paper-tuned) */
  --f-phil:#6a4fc0; --f-sci:#0f8577; --f-pol:#c04e37; --f-eco:#9a7714;
  --f-theo:#a34573; --f-math:#2c7d3f; --f-civ:#2e6f96;
  --sans:'Schibsted Grotesk',system-ui,sans-serif;
  --serif:'Fraunces',Georgia,serif;
  --shadow-lg:0 2px 4px rgba(29,23,16,.05),0 24px 64px -24px rgba(29,23,16,.28);
  --shadow-md:0 1px 3px rgba(29,23,16,.06),0 12px 32px -16px rgba(29,23,16,.22);
  font-family:var(--sans);color:var(--ink);
  font-size:1rem;line-height:1.55;
  background:
    radial-gradient(90rem 60rem at 85% -10%, rgba(165,118,31,.06), transparent 60%),
    radial-gradient(70rem 50rem at -10% 30%, rgba(106,79,192,.045), transparent 55%),
    var(--paper);
  -webkit-font-smoothing:antialiased;
  /* clip, not hidden: an overflow-x:hidden ancestor becomes a scroll
     container and silently kills the position:sticky scrollytelling pin */
  overflow-x:clip;
}
#pr *{box-sizing:border-box}
#pr button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
#pr a{color:inherit;text-decoration:none}
#pr :focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}

/* ── shared type & controls ─────────────────────────────────────────── */
#pr .pr-eyebrow{font-size:0.75rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gold);margin:0 0 16px}
#pr .pr-eyebrow.bright{color:var(--ngold)}
#pr .pr-h1{font-family:var(--serif);font-weight:560;line-height:1.04;letter-spacing:-.018em;
  font-size:clamp(2.7rem,5.6vw,4.6rem);margin:0 0 24px;color:var(--ink);text-wrap:balance}
#pr .pr-h2{font-family:var(--serif);font-weight:560;line-height:1.08;letter-spacing:-.012em;
  font-size:clamp(2rem,3.6vw,3rem);margin:0 0 18px;text-wrap:balance}
#pr .pr-lede{font-size:1.125rem;line-height:1.7;color:var(--ink2);max-width:34em;margin:0 0 34px;text-wrap:pretty}
#pr .pr-sub{font-size:1.0625rem;line-height:1.7;color:var(--ink2);margin:0;text-wrap:pretty}
#pr .pr-night .pr-h2{color:var(--nink)}
#pr .pr-night .pr-sub{color:var(--nink2)}

#pr .pr-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:linear-gradient(180deg,#c99b46,#a5761f);color:#fff8ec;font-weight:700;
  font-size:0.9375rem;padding:14px 26px;border-radius:999px;
  box-shadow:0 2px 0 rgba(255,255,255,.25) inset,0 10px 26px -10px rgba(165,118,31,.55);
  transition:transform .25s cubic-bezier(.2,.9,.3,1.4),box-shadow .25s,filter .25s}
#pr .pr-btn:hover{transform:translateY(-2px);filter:brightness(1.05);
  box-shadow:0 2px 0 rgba(255,255,255,.25) inset,0 16px 34px -12px rgba(165,118,31,.6)}
#pr .pr-btn:active{transform:translateY(0)}
#pr .pr-btn.sm{font-size:0.8438rem;padding:10px 18px}
#pr .pr-btn.lg{font-size:1.0313rem;padding:17px 32px}
#pr .pr-btn.xl{font-size:1.125rem;padding:20px 42px}
#pr .pr-btn.bright{background:linear-gradient(180deg,#e3c893,#c9a86a);color:#1a1408}
#pr .pr-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1.5px solid var(--line2);color:var(--ink);font-weight:600;font-size:0.9375rem;
  padding:13px 24px;border-radius:999px;transition:border-color .25s,background .25s,transform .25s}
#pr .pr-ghost:hover{border-color:var(--gold);background:var(--gold-soft);transform:translateY(-2px)}
#pr .pr-ghost.lg{font-size:1rem;padding:16px 30px}
#pr .pr-quiet{color:var(--ink2);font-weight:600;font-size:0.9063rem;padding:10px 12px}
#pr .pr-quiet:hover{color:var(--ink)}
#pr .pr-proof{font-size:0.875rem;color:var(--ink3);margin:22px 0 0}
#pr .pr-proof b{color:var(--ink2);font-weight:700}
#pr .pr-proof.bright{color:var(--nink3)} #pr .pr-proof.bright b{color:var(--nink2)}
#pr .pr-wm{font-family:var(--sans);font-weight:400;letter-spacing:.22em;font-size:1.125rem;color:var(--ink)}
#pr .pr-wm span{color:var(--gold)}

#pr .pr-sechead{max-width:44rem;margin:0 auto 56px;text-align:center}
#pr .pr-sechead.left{margin:0 0 56px;text-align:left}

/* entrance + scroll reveals */
#pr .pr-rise{opacity:0;transform:translateY(22px);
  transition:opacity .9s ease,transform .9s cubic-bezier(.16,1,.3,1);transition-delay:var(--d,0ms)}
#pr.in .pr-rise{opacity:1;transform:none}
#pr .pr-w{display:inline-block;opacity:0;transform:translateY(.45em);
  transition:opacity .7s ease,transform .7s cubic-bezier(.16,1,.3,1);transition-delay:var(--d,0ms)}
#pr.in .pr-w{opacity:1;transform:none}
#pr .pr-rev{opacity:0;transform:translateY(30px);
  transition:opacity .8s ease,transform .8s cubic-bezier(.16,1,.3,1);transition-delay:var(--d,0ms)}
#pr .pr-rev.on{opacity:1;transform:none}
/* anchor jumps land clear of the fixed nav */
#pr section[id]{scroll-margin-top:74px}

/* ── nav ────────────────────────────────────────────────────────────── */
#pr .pr-nav{position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:14px clamp(20px,4vw,48px);
  transition:background .35s,border-color .35s,box-shadow .35s;border-bottom:1px solid transparent}
#pr .pr-nav.scrolled{background:rgba(248,244,236,.85);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom-color:var(--line);box-shadow:0 8px 30px -18px rgba(29,23,16,.25)}
#pr .pr-nav-links{display:flex;gap:6px}
#pr .pr-nav-links a{font-size:0.9063rem;font-weight:600;color:var(--ink2);padding:9px 14px;
  border-radius:999px;transition:color .2s,background .2s}
#pr .pr-nav-links a:hover{color:var(--ink);background:var(--gold-soft)}
#pr .pr-nav-links a.act{color:var(--gold-deep);background:var(--gold-soft)}
#pr .pr-nav-cta{display:flex;align-items:center;gap:8px}

/* ── hero ───────────────────────────────────────────────────────────── */
#pr .pr-hero{max-width:82rem;margin:0 auto;
  display:grid;grid-template-columns:minmax(0,11fr) minmax(0,9fr);gap:clamp(28px,4vw,72px);
  align-items:center;min-height:100svh;padding:130px clamp(20px,4vw,48px) 60px}
#pr .pr-hero-cta{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
#pr .pr-hero-stage{min-width:0}
#pr .pr-orrery{position:relative;aspect-ratio:1;max-width:560px;margin:0 auto;
  touch-action:pan-y;cursor:grab}
#pr .pr-orrery.grabbing{cursor:grabbing}
#pr .pr-orrery canvas{display:block;width:100%;height:100%}
#pr .pr-orrery-tip{position:absolute;z-index:5;pointer-events:none;transform:translate(-50%,-130%);
  background:var(--ink);color:var(--paper);padding:8px 12px;border-radius:10px;
  box-shadow:var(--shadow-md);white-space:nowrap;font-size:0.8125rem;line-height:1.35}
#pr .pr-orrery-tip b{display:block;font-weight:700}
#pr .pr-orrery-tip b::before{content:'';display:inline-block;width:7px;height:7px;
  border-radius:50%;background:var(--tc,#a5761f);margin-right:7px}
#pr .pr-orrery-tip span{color:rgba(248,244,236,.66);font-size:0.6875rem;letter-spacing:.06em;text-transform:uppercase}
#pr .pr-orrery-cap{text-align:center;font-size:0.8125rem;color:var(--ink3);margin:18px 0 0}
#pr .pr-orrery-cap em{color:var(--gold);font-style:italic;font-family:var(--serif)}

/* ── scrollytelling: the method ─────────────────────────────────────── */
#pr .pr-scrolly{position:relative;height:430vh;background:linear-gradient(180deg,transparent,var(--paper2) 12%,var(--paper2) 88%,transparent)}
#pr .pr-scrolly-pin{position:sticky;top:0;height:100svh;display:flex;align-items:center;overflow:hidden}
#pr .pr-scrolly-grid{max-width:76rem;margin:0 auto;width:100%;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,5vw,90px);
  align-items:center;padding:0 clamp(20px,4vw,48px)}
#pr .pr-scrolly-rail{position:relative;padding-left:26px}
#pr .pr-steps{list-style:none;margin:34px 0 0;padding:0;display:flex;flex-direction:column;gap:26px}
#pr .pr-steps li{display:flex;gap:16px;align-items:flex-start;opacity:.34;transition:opacity .4s}
#pr .pr-steps li.act{opacity:1}
#pr .pr-steps li i{font-family:var(--serif);font-style:normal;font-weight:600;font-size:0.9375rem;
  color:var(--ink3);padding-top:2px;min-width:26px;transition:color .4s}
#pr .pr-steps li.act i{color:var(--gold)}
#pr .pr-steps li b{display:block;font-size:1.0625rem;font-weight:700;margin-bottom:4px}
#pr .pr-steps li span{font-size:0.9063rem;line-height:1.55;color:var(--ink2)}
#pr .pr-steps-spine{position:absolute;left:0;top:8px;bottom:8px;width:2px;background:var(--line);border-radius:2px}
#pr .pr-steps-spine i{display:block;width:100%;height:0%;background:linear-gradient(180deg,#c99b46,var(--gold));border-radius:2px}

#pr .pr-device{position:relative;aspect-ratio:4/4.6;max-width:520px;width:100%;justify-self:center;
  background:var(--card);border:1px solid var(--line);border-radius:26px;
  box-shadow:var(--shadow-lg);overflow:hidden}
/* the app's own chrome, so the card reads as the product */
#pr .pr-dev-top{position:absolute;top:0;left:0;right:0;height:44px;z-index:5;
  display:flex;align-items:center;justify-content:space-between;padding:0 22px;
  background:rgba(248,244,236,.85);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);transition:background .4s,border-color .4s}
#pr .pr-dev-wm{font-size:0.75rem;font-weight:400;letter-spacing:.2em;color:var(--ink)}
#pr .pr-dev-wm i{font-style:normal;color:var(--gold)}
#pr .pr-dev-tabs{display:flex;gap:4px}
#pr .pr-dev-tabs i{font-style:normal;font-size:0.6563rem;font-weight:700;color:var(--ink3);
  padding:4px 10px;border-radius:999px;transition:color .4s,background .4s}
#pr .pr-dev-tabs i.on{color:var(--gold-deep);background:var(--gold-soft)}
#pr .pr-device.dark .pr-dev-top{background:rgba(14,17,25,.85);border-bottom-color:rgba(236,231,221,.1)}
#pr .pr-device.dark .pr-dev-wm{color:var(--nink)}
#pr .pr-device.dark .pr-dev-tabs i{color:var(--nink3)}
#pr .pr-device.dark .pr-dev-tabs i.on{color:var(--ngold);background:rgba(212,180,131,.14)}
#pr .pr-scene{position:absolute;inset:0;padding:64px 34px 30px;display:flex;flex-direction:column;
  opacity:0;transform:translateY(18px) scale(.985);transition:opacity .45s ease,transform .55s cubic-bezier(.16,1,.3,1);
  pointer-events:none}
#pr .pr-scene.on{opacity:1;transform:none}
#pr .pr-sc-eyebrow{font-size:0.6875rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin:0 0 14px}
#pr .pr-sc-h{font-family:var(--serif);font-weight:600;font-size:1.5rem;line-height:1.2;margin:0 0 16px}
#pr .pr-sc-p{font-family:var(--serif);font-size:1.0313rem;line-height:1.75;color:var(--ink);margin:0 0 14px}
#pr .pr-sc-p mark{background:transparent;color:inherit;
  background-image:linear-gradient(180deg,rgba(201,155,70,.38),rgba(201,155,70,.38));
  background-repeat:no-repeat;background-position:0 78%;background-size:calc(var(--t,0)*100%) 34%;}
#pr .pr-sc-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap}
#pr .pr-sc-chip{align-self:flex-start;font-size:0.75rem;font-weight:700;
  color:var(--gold-deep);background:var(--gold-soft);border:1px solid rgba(165,118,31,.25);
  padding:7px 12px;border-radius:999px}
#pr .pr-sc-steps{display:flex;align-items:center;gap:4px}
#pr .pr-sc-steps span{font-size:0.6563rem;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:var(--ink3);margin-right:6px}
#pr .pr-sc-steps i{width:5px;height:5px;border-radius:50%;background:var(--line2)}
#pr .pr-sc-steps i.done{background:rgba(165,118,31,.45)}
#pr .pr-sc-steps i.now{background:var(--gold);box-shadow:0 0 0 3px var(--gold-soft)}
#pr .pr-flame{width:10px;height:13px;border-radius:50% 50% 50% 50%/60% 60% 40% 40%;
  background:radial-gradient(circle at 50% 80%,#e8cf9a,#c99b46 60%,#a5761f);display:inline-block;
  box-shadow:0 0 12px rgba(201,155,70,.75);animation:prFlick 2.6s ease-in-out infinite}
@keyframes prFlick{0%,100%{transform:scale(1) rotate(-2deg)}50%{transform:scale(1.12) rotate(2deg)}}
#pr .pr-sc-soph{display:flex;align-items:center;gap:9px;font-weight:700;font-size:0.9063rem;margin-bottom:16px}
#pr .pr-sc-bubble{background:var(--paper);border:1px solid var(--line);border-radius:16px;
  border-top-left-radius:4px;padding:15px 18px;font-family:var(--serif);font-size:1rem;
  line-height:1.6;margin-bottom:12px}
#pr .pr-sc-bubble.gold{border-color:rgba(165,118,31,.4);background:linear-gradient(180deg,#fdf8ec,#f9f0da);
  clip-path:inset(0 calc((1 - var(--t,0))*100%) 0 0 round 16px)}
#pr .pr-sc-choices{display:flex;flex-direction:column;gap:8px;margin:2px 0 14px}
#pr .pr-sc-choice{font-size:0.875rem;border:1px solid var(--line2);border-radius:10px;
  padding:10px 14px;color:var(--ink2);background:var(--card);transition:all .3s}
#pr .pr-sc-choice[data-pick]{--p:var(--t,0)}
#pr .pr-scene.on .pr-sc-choice[data-pick]{
  border-color:rgba(165,118,31,calc(.2 + var(--t,0)*.6));
  background:rgba(165,118,31,calc(var(--t,0)*.1));color:var(--ink);font-weight:600}
#pr .pr-scene-recall{background:var(--night)}
#pr .pr-sky{position:relative;flex:1;min-height:0}
#pr .pr-sky-rim{position:absolute;left:50%;top:50%;width:86%;aspect-ratio:1;transform:translate(-50%,-50%);
  border:1px solid rgba(212,180,131,.28);border-radius:50%;
  box-shadow:0 0 40px rgba(212,180,131,.07) inset}
#pr .pr-sky-star{position:absolute;width:5px;height:5px;border-radius:50%;background:#ece7dd;
  left:var(--x);top:var(--y);box-shadow:0 0 8px rgba(236,231,221,.8)}
#pr .pr-sky-star.bg{opacity:.6;width:4px;height:4px}
#pr .pr-sky-star.hero{width:7px;height:7px;background:#ffe9c4;box-shadow:0 0 14px rgba(212,180,131,.95);
  left:calc(50% + var(--dx,0px));top:calc(50% + var(--dy,0px))}
#pr .pr-sky-ripple{position:absolute;border:1.5px solid rgba(212,180,131,.85);border-radius:50%;
  width:12px;height:12px;left:calc(50% + var(--dx,0px));top:calc(50% + var(--dy,0px));
  transform:translate(-50%,-50%) scale(var(--s,0));opacity:var(--o,0)}
#pr .pr-sky-trail{position:absolute;left:calc(50% + var(--dx,0px));top:calc(50% + var(--dy,0px));
  width:var(--tl,0px);height:1.5px;border-radius:2px;
  transform-origin:0 50%;transform:rotate(var(--ta,0deg));opacity:var(--to,0);
  background:linear-gradient(90deg,rgba(212,180,131,.85),rgba(212,180,131,0))}
#pr .pr-sky-label{position:absolute;right:6%;bottom:5%;font-size:0.5938rem;letter-spacing:.22em;
  text-transform:uppercase;color:rgba(212,180,131,.5)}
#pr .pr-scene-recall .pr-sc-cap{color:var(--nink2)}
#pr .pr-sc-cap{font-size:0.875rem;color:var(--ink2);text-align:center;margin:18px 0 0}
#pr .pr-scene-map svg{flex:1;min-height:0;width:100%}
#pr .pr-mini-arc{fill:none;stroke:var(--gold);stroke-width:1.6;opacity:.8;
  stroke-dasharray:var(--len,200);stroke-dashoffset:calc(var(--len,200)*(1 - var(--t,0)))}
#pr .pr-mini-node{fill:var(--f-phil);stroke:var(--card);stroke-width:2}
#pr .pr-mini-comet{fill:var(--gold)}
#pr .pr-scene-map text{font-family:var(--sans);font-size:11.5px;fill:var(--ink2);text-anchor:middle}

/* ── try it: the Socratic chat ──────────────────────────────────────── */
#pr .pr-try{max-width:46rem;margin:0 auto;padding:130px clamp(20px,4vw,48px) 40px}
#pr .pr-chat{background:var(--card);border:1px solid var(--line);border-radius:24px;
  box-shadow:var(--shadow-lg);padding:30px 32px 28px}
#pr .pr-chat-head{display:flex;align-items:center;gap:10px;font-size:0.9375rem;margin-bottom:18px}
#pr .pr-chat-role{color:var(--ink3);font-size:0.8438rem}
#pr .pr-chat-q{background:var(--paper);border:1px solid var(--line);border-radius:18px;
  border-top-left-radius:5px;padding:18px 21px;font-family:var(--serif);
  font-size:1.0938rem;line-height:1.65}
#pr .pr-chat-reply{margin-top:14px;border-color:rgba(165,118,31,.4);
  background:linear-gradient(180deg,#fdf8ec,#f9f0da)}
#pr .pr-chat-reply .pr-caret{display:inline-block;width:2px;height:1em;background:var(--gold);
  vertical-align:-2px;margin-left:2px;animation:prCaret 1s steps(2) infinite}
@keyframes prCaret{50%{opacity:0}}
#pr .pr-chat-choices{display:flex;flex-direction:column;gap:9px;margin-top:16px}
#pr .pr-chat-choices button{text-align:left;font-size:0.9375rem;line-height:1.5;
  border:1.5px solid var(--line2);border-radius:13px;padding:13px 17px;background:var(--card);
  transition:transform .25s cubic-bezier(.2,.9,.3,1.4),border-color .25s,background .25s,opacity .35s}
#pr .pr-chat-choices button:hover{border-color:var(--gold);background:var(--gold-soft);transform:translateX(4px)}
#pr .pr-chat-choices.answered button{opacity:.32;pointer-events:none;transform:none}
#pr .pr-chat-choices.answered button.picked{opacity:1;border-color:var(--gold);
  background:var(--gold-soft);font-weight:600;
  animation:prPick .5s cubic-bezier(.2,.9,.3,1.6)}
@keyframes prPick{0%{transform:scale(1)}40%{transform:scale(1.035)}100%{transform:scale(1)}}
#pr .pr-chat-typing{display:none;gap:5px;padding:16px 4px 2px}
#pr .pr-chat-typing.show{display:flex}
#pr .pr-chat-typing i{width:7px;height:7px;border-radius:50%;background:var(--ink3);
  animation:prDot 1.1s ease-in-out infinite}
#pr .pr-chat-typing i:nth-child(2){animation-delay:.15s}
#pr .pr-chat-typing i:nth-child(3){animation-delay:.3s}
@keyframes prDot{0%,60%,100%{transform:translateY(0);opacity:.4}30%{transform:translateY(-5px);opacity:1}}
#pr .pr-chat-close{margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
#pr .pr-chat-close p{font-size:0.9375rem;line-height:1.65;color:var(--ink2);margin:0 0 16px}
#pr .pr-chat-close em{font-style:italic;font-family:var(--serif);color:var(--ink);
  background-image:linear-gradient(180deg,rgba(201,155,70,.4),rgba(201,155,70,.4));
  background-repeat:no-repeat;background-position:0 82%;background-size:var(--u,0%) 30%;
  transition:background-size 1.1s cubic-bezier(.2,.7,.3,1)}
#pr .pr-chat-close.show em{--u:100%}
#pr .pr-chat-close .pr-again{color:var(--gold-deep);font-weight:600;font-size:0.875rem;margin-right:14px}
#pr .pr-chat-close .pr-again:hover{text-decoration:underline}

/* ── interlude: the name itself ─────────────────────────────────────── */
#pr .pr-word{max-width:46rem;margin:0 auto;text-align:center;
  padding:130px clamp(20px,4vw,48px) 30px}
#pr .pr-word-greek{font-family:var(--serif);font-weight:300;font-style:italic;
  font-size:clamp(3rem,7vw,5.2rem);line-height:1;color:rgba(165,118,31,.28);
  margin:0 0 18px;letter-spacing:.04em}
#pr .pr-word-def{font-family:var(--serif);font-size:clamp(1.25rem,2.2vw,1.625rem);
  line-height:1.5;color:var(--ink);margin:0 0 14px;text-wrap:balance}
#pr .pr-word-def b{font-weight:600}
#pr .pr-word-def i{color:var(--ink3);font-size:.8em}
#pr .pr-word-def em{font-style:italic;color:var(--gold-deep)}
#pr .pr-word-sub{font-size:0.9375rem;color:var(--ink3);margin:0}

/* ── night plates (memory lab · library) — nebula corners + film grain ─ */
#pr .pr-night{position:relative;background:
  radial-gradient(60rem 40rem at 80% 0%, rgba(212,180,131,.07), transparent 55%),
  radial-gradient(48rem 34rem at 0% 100%, rgba(106,79,192,.10), transparent 60%),
  var(--night);
  color:var(--nink);margin-top:110px;padding:110px 0}
#pr .pr-night.alt{margin-top:0;padding-top:120px;background:
  radial-gradient(50rem 36rem at 100% 100%, rgba(15,133,119,.09), transparent 60%),
  radial-gradient(44rem 30rem at 0% 0%, rgba(163,69,115,.08), transparent 55%),
  linear-gradient(180deg,var(--night) 0%,var(--night2) 100%)}
#pr .pr-night::after,#pr .pr-final::after{content:'';position:absolute;inset:0;
  pointer-events:none;opacity:.5;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='160' height='160' filter='url(%23n)' opacity='0.05'/></svg>")}
#pr .pr-night-inner{max-width:76rem;margin:0 auto;padding:0 clamp(20px,4vw,48px);
  display:grid;grid-template-columns:minmax(0,10fr) minmax(0,9fr);gap:clamp(30px,5vw,80px);align-items:center}
#pr .pr-lab-stage{position:relative;aspect-ratio:1;max-width:520px;width:100%;justify-self:center;
  background:radial-gradient(circle at 50% 46%, #131019 0%, #080b12 72%);
  border:1px solid var(--nline);border-radius:24px;overflow:hidden;box-shadow:0 30px 80px -30px rgba(0,0,0,.8)}
#pr .pr-lab-stage canvas{display:block;width:100%;height:100%}
#pr .pr-goldem{font-style:italic;font-family:var(--serif);color:var(--ngold)}
#pr .pr-clicknote{color:var(--nink);font-weight:700}
#pr .pr-orbit-status{margin:26px 0 0;font-size:0.9375rem;line-height:1.55;color:var(--nink2);
  min-height:1.5em}
#pr .pr-orbit-status strong{color:var(--ngold);font-weight:700}
/* the ledger: five ideas, their live intervals, their state */
#pr .pr-ledger{margin-top:16px;border:1px solid var(--nline);border-radius:16px;
  background:rgba(255,255,255,.02);overflow:hidden;display:flex;flex-direction:column}
#pr .pr-lrow{display:flex;align-items:center;gap:12px;text-align:left;width:100%;
  padding:11px 16px;border-top:1px solid rgba(236,231,221,.06);cursor:pointer;
  transition:background .2s}
#pr .pr-lrow:first-child{border-top:none}
#pr .pr-lrow:hover,#pr .pr-lrow.hot{background:rgba(212,180,131,.07)}
#pr .pr-lrow i{width:8px;height:8px;border-radius:50%;background:var(--ngold);flex:none;
  box-shadow:0 0 8px rgba(212,180,131,.6);transition:background .3s,box-shadow .3s}
#pr .pr-lrow.danger i{background:#e08050;box-shadow:0 0 10px rgba(224,128,80,.8);
  animation:prDanger 1s ease-in-out infinite}
@keyframes prDanger{0%,100%{opacity:1}50%{opacity:.35}}
#pr .pr-lrow.dead i{background:#4a4640;box-shadow:none;animation:none}
#pr .pr-lrow .ln{flex:1;font-size:0.875rem;color:var(--nink);font-family:var(--serif);font-style:italic}
#pr .pr-lrow.dead .ln{color:var(--nink3);text-decoration:line-through;text-decoration-color:rgba(236,231,221,.3)}
#pr .pr-lrow .lv{font-size:0.75rem;font-weight:700;color:var(--ngold);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;white-space:nowrap}
#pr .pr-lrow.danger .lv{color:#e08050}
#pr .pr-lrow.dead .lv{color:var(--nink3);font-weight:600}
#pr .pr-orbit-hint{margin:14px 2px 0;font-size:0.7813rem;color:var(--nink3);font-style:italic;
  font-family:var(--serif)}

/* ── the library constellation ──────────────────────────────────────── */
#pr .pr-const-head{max-width:44rem;margin:0 auto 40px;text-align:center;padding:0 clamp(20px,4vw,48px)}
#pr .pr-legend{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:24px}
#pr .pr-legend button{display:inline-flex;align-items:center;gap:8px;font-size:0.8125rem;font-weight:600;
  color:var(--nink2);border:1px solid var(--nline);border-radius:999px;padding:7px 14px;
  transition:all .25s}
#pr .pr-legend button i{width:8px;height:8px;border-radius:50%;background:var(--fc,#888)}
#pr .pr-legend button[data-f=phil]{--fc:#9a82d4} #pr .pr-legend button[data-f=sci]{--fc:#3db8a8}
#pr .pr-legend button[data-f=pol]{--fc:#d06050} #pr .pr-legend button[data-f=theo]{--fc:#b06080}
#pr .pr-legend button:hover,#pr .pr-legend button.on{border-color:var(--fc);color:var(--nink);
  background:rgba(255,255,255,.04)}
#pr .pr-const{position:relative;max-width:66rem;margin:0 auto;padding:0 clamp(16px,3vw,40px)}
#pr .pr-const svg{display:block;width:100%;height:auto}
#pr .pr-eras line{stroke:rgba(236,231,221,.07);stroke-dasharray:2 6}
#pr .pr-eras text{font-family:var(--sans);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;
  fill:var(--nink3);text-anchor:middle}
#pr #pr-arcs path{fill:none;stroke-width:2;opacity:0;stroke-linecap:round;
  transition:opacity .4s, stroke-width .3s}
#pr #pr-arcs path.draw{opacity:.6;transition:stroke-dashoffset 1s cubic-bezier(.4,0,.2,1),opacity .4s,stroke-width .3s}
#pr #pr-arcs path[data-f=phil]{stroke:#9a82d4} #pr #pr-arcs path[data-f=sci]{stroke:#3db8a8}
#pr #pr-arcs path[data-f=pol]{stroke:#d06050}  #pr #pr-arcs path[data-f=theo]{stroke:#b06080}
#pr #pr-arcs path.hot{opacity:1;stroke-width:2.6}
#pr #pr-arcs path.dim{opacity:.12}
#pr .pr-cn{opacity:0;transition:opacity .5s;cursor:pointer}
#pr .pr-cn.on{opacity:1}
#pr .pr-cn circle.core{stroke:#0b0e15;stroke-width:2}
#pr .pr-cn circle.halo{fill:none;opacity:.4;stroke-width:1.4}
@keyframes prTw{0%,100%{opacity:.3}50%{opacity:.6}}
#pr .pr-cn.on circle.halo{animation:prTw 3.6s ease-in-out infinite;animation-delay:calc(var(--tw,0)*1s)}
#pr .pr-cn circle.hit{fill:transparent;stroke:none}
#pr .pr-cn text{font-family:var(--sans);font-size:13.5px;font-weight:600;fill:var(--nink2);
  text-anchor:middle;transition:fill .25s}
#pr .pr-cn text.era{font-size:10px;font-weight:400;fill:var(--nink3)}
#pr .pr-dust circle{fill:rgba(236,231,221,.14)}
#pr .pr-cn.hot text{fill:var(--nink)}
#pr .pr-cn.hot circle.halo{opacity:.9}
#pr .pr-cn.dim{opacity:.25}
#pr .pr-const-card{position:absolute;z-index:6;width:250px;pointer-events:none;
  background:#f8f4ec;color:#1d1710;border-radius:14px;padding:14px 16px;
  box-shadow:0 20px 50px -12px rgba(0,0,0,.65);transform:translate(-50%,calc(-100% - 16px));
  opacity:0;transition:opacity .25s,transform .35s cubic-bezier(.16,1,.3,1)}
#pr .pr-const-card.show{opacity:1;transform:translate(-50%,calc(-100% - 22px))}
#pr .pr-const-card b{font-family:var(--serif);font-weight:600;font-size:1.0625rem;display:block}
#pr .pr-const-card .era{font-size:0.6875rem;letter-spacing:.12em;text-transform:uppercase;color:#988c79}
#pr .pr-const-card p{font-size:0.8438rem;line-height:1.5;color:#5c5344;margin:7px 0 0}
#pr .pr-const-cap{max-width:44rem;margin:34px auto 0;text-align:center;
  font-size:0.875rem;color:var(--nink3);padding:0 clamp(20px,4vw,48px)}

/* ── the library, counted ───────────────────────────────────────────── */
#pr .pr-stats-band{background:var(--paper2);padding:80px clamp(20px,4vw,48px) 96px}
#pr .pr-strata{max-width:72rem;margin:0 auto 56px;height:5px;display:flex;
  border-radius:3px;overflow:hidden}
#pr .pr-strata i{display:block;height:100%}
#pr .pr-fields{max-width:56rem;margin:64px auto 0;display:flex;flex-direction:column;gap:13px}
#pr .pr-field{display:grid;grid-template-columns:118px minmax(0,1fr) 34px;
  grid-template-areas:"n b c" "n d c";align-items:center;column-gap:16px;row-gap:3px}
#pr .pr-field .fn{grid-area:n;font-size:0.875rem;font-weight:700;color:var(--ink)}
#pr .pr-field .bar{grid-area:b;height:7px;border-radius:4px;background:rgba(29,23,16,.06);
  overflow:hidden}
#pr .pr-field .bar i{display:block;height:100%;border-radius:4px;background:var(--fc);
  width:calc(var(--n)/69*100%);transform:scaleX(0);transform-origin:left center;
  transition:transform 1s cubic-bezier(.16,1,.3,1);transition-delay:var(--bd,0ms)}
#pr .pr-fields.on .bar i{transform:scaleX(1)}
#pr .pr-field .fc{grid-area:c;font-size:0.875rem;font-weight:700;color:var(--ink2);
  font-variant-numeric:tabular-nums;text-align:right}
#pr .pr-field .fd{grid-area:d;font-size:0.7813rem;color:var(--ink3)}
#pr .pr-stats{max-width:72rem;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
#pr .pr-stats > div{padding:10px 8px;border-left:1px solid var(--line)}
#pr .pr-stats > div:first-child{border-left:none}
#pr .pr-stats b{display:block;font-family:var(--serif);font-weight:560;
  font-size:clamp(2.4rem,4.6vw,3.6rem);line-height:1;color:var(--ink);font-variant-numeric:tabular-nums}
#pr .pr-stats span{display:block;margin-top:10px;font-size:0.75rem;font-weight:800;
  letter-spacing:.15em;text-transform:uppercase;color:var(--ink3)}
#pr .pr-stats-note{max-width:72rem;margin:30px auto 0;text-align:center;font-size:0.875rem;color:var(--ink3)}

/* ── courses ────────────────────────────────────────────────────────── */
#pr .pr-courses-sec{max-width:76rem;margin:0 auto;padding:120px clamp(20px,4vw,48px) 30px}
#pr .pr-courses{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;perspective:1100px}
#pr .pr-course{display:flex;flex-direction:column;gap:10px;background:var(--card);
  border:1px solid var(--line);border-radius:20px;padding:20px 24px 26px;
  transform:rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg)) translateY(var(--ty,0px));
  transition:transform .35s cubic-bezier(.16,1,.3,1),box-shadow .35s,border-color .35s}
#pr .pr-course:hover{--ty:-6px;border-color:var(--cc);box-shadow:var(--shadow-lg)}
#pr .pr-emblem{display:grid;place-items:center;width:100%;height:104px;margin-bottom:10px;
  border-radius:14px;background:color-mix(in srgb, var(--cc) 9%, transparent);
  transition:background .35s}
@supports not (background:color-mix(in srgb,red 10%,transparent)){
  #pr .pr-emblem{background:var(--gold-soft)}
}
#pr .pr-course:hover .pr-emblem{background:color-mix(in srgb, var(--cc) 15%, transparent)}
#pr .pr-emblem svg{width:96px;height:72px;overflow:visible}
#pr .pr-emblem .s{fill:none;stroke:var(--cc);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
#pr .pr-emblem .tube{fill:none;stroke:var(--cc);stroke-width:7;stroke-linecap:round}
#pr .pr-emblem .g{fill:var(--gold)}
#pr .pr-emblem .g2{fill:none;stroke:var(--gold);stroke-width:2.6;stroke-linejoin:round}
#pr .pr-course:hover .pr-emblem svg{animation:prEmblem .5s cubic-bezier(.2,.9,.3,1.4)}
@keyframes prEmblem{0%{transform:scale(1)}45%{transform:scale(1.06) rotate(-1deg)}100%{transform:scale(1)}}
#pr .pr-course h3{font-family:var(--serif);font-weight:600;font-size:1.3125rem;margin:0}
#pr .pr-course p{font-size:0.9063rem;line-height:1.6;color:var(--ink2);margin:0;flex:1}
#pr .pr-course .meta{font-size:0.7188rem;font-weight:800;letter-spacing:.13em;
  text-transform:uppercase;color:var(--ink3)}

/* ── the faculty ────────────────────────────────────────────────────── */
#pr .pr-faculty{max-width:76rem;margin:0 auto;padding:110px clamp(20px,4vw,48px) 20px}
#pr .pr-fac-note{max-width:38rem;margin:0 auto 46px;text-align:center;
  font-size:0.9375rem;line-height:1.6;color:var(--ink3);font-style:italic;
  font-family:var(--serif)}
#pr .pr-fac-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;perspective:1100px}
#pr .pr-fac{margin:0;background:var(--card);border:1px solid var(--line);
  border-radius:20px;padding:28px 28px 24px;position:relative;
  transform:rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg)) translateY(var(--ty,0px));
  transition:transform .35s cubic-bezier(.16,1,.3,1),box-shadow .35s}
#pr .pr-fac:hover{--ty:-4px;box-shadow:var(--shadow-md)}
#pr .pr-fac::before{content:'“';position:absolute;top:6px;left:18px;
  font-family:var(--serif);font-size:3.4rem;line-height:1;color:rgba(165,118,31,.18)}
#pr .pr-fac blockquote{margin:0 0 18px;font-family:var(--serif);font-size:1.125rem;
  line-height:1.55;color:var(--ink);text-wrap:pretty}
#pr .pr-fac figcaption b{display:block;font-size:0.9063rem;font-weight:700}
#pr .pr-fac figcaption span{font-size:0.75rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink3);font-weight:600}

/* ── honest by design ───────────────────────────────────────────────── */
#pr .pr-honest{max-width:76rem;margin:0 auto;padding:110px clamp(20px,4vw,48px) 40px}
#pr .pr-prin{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
#pr .pr-pcard{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:28px;
  transition:transform .35s cubic-bezier(.16,1,.3,1),box-shadow .35s}
#pr .pr-pcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
#pr .pr-picon{width:60px;height:60px;padding:10px;margin-bottom:16px;
  border-radius:16px;background:var(--gold-soft)}
#pr .pr-picon .ring{fill:none;stroke:var(--line2);stroke-width:2}
#pr .pr-picon .fill{fill:none;stroke:var(--gold);stroke-width:2.5;stroke-linecap:round;
  stroke-dasharray:76;stroke-dashoffset:76;transition:stroke-dashoffset 1s cubic-bezier(.4,0,.2,1)}
#pr .pr-pcard:hover .fill{stroke-dashoffset:0}
#pr .pr-picon .check{fill:none;stroke:var(--gold);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
#pr .pr-picon .flame{fill:none;stroke:var(--gold);stroke-width:2;stroke-linejoin:round;transform-origin:50% 70%}
#pr .pr-pcard:hover .flame{animation:prFlick 1.6s ease-in-out infinite}
#pr .pr-picon .quill{fill:none;stroke:var(--gold);stroke-width:2;stroke-linejoin:round}
#pr .pr-picon .stroke{stroke:var(--gold);stroke-width:2;stroke-linecap:round;
  stroke-dasharray:18;stroke-dashoffset:18;transition:stroke-dashoffset .8s ease}
#pr .pr-pcard:hover .stroke{stroke-dashoffset:0}
#pr .pr-pcard h3{font-family:var(--serif);font-weight:600;font-size:1.25rem;margin:0 0 10px}
#pr .pr-pcard p{font-size:0.9063rem;line-height:1.65;color:var(--ink2);margin:0}
#pr .pr-mem{display:block;margin-top:16px;padding:13px 16px;border-left:3px solid var(--gold);
  background:var(--gold-soft);border-radius:0 12px 12px 0;
  font-family:var(--serif);font-style:italic;font-size:0.9375rem;line-height:1.6;color:var(--ink)}

/* ── plain answers ──────────────────────────────────────────────────── */
#pr .pr-faq{max-width:46rem;margin:0 auto;padding:110px clamp(20px,4vw,48px) 40px}
#pr .pr-faq .pr-sechead{margin-bottom:34px}
#pr .pr-faq-list{display:flex;flex-direction:column}
#pr .pr-faq details{border-top:1px solid var(--line)}
#pr .pr-faq details:last-child{border-bottom:1px solid var(--line)}
#pr .pr-faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;
  justify-content:space-between;gap:18px;padding:19px 2px;
  font-size:1.0313rem;font-weight:600;color:var(--ink);transition:color .2s}
#pr .pr-faq summary::-webkit-details-marker{display:none}
#pr .pr-faq summary:hover{color:var(--gold-deep)}
#pr .pr-faq summary i{position:relative;width:14px;height:14px;flex:none}
#pr .pr-faq summary i::before,#pr .pr-faq summary i::after{content:'';position:absolute;
  left:0;top:6px;width:14px;height:2px;border-radius:1px;background:var(--gold);
  transition:transform .35s cubic-bezier(.16,1,.3,1)}
#pr .pr-faq summary i::after{transform:rotate(90deg)}
#pr .pr-faq details[open] summary i::after{transform:rotate(0deg)}
#pr .pr-faq-a{overflow:hidden}
#pr .pr-faq-a p{margin:0;padding:0 28px 20px 2px;font-size:0.9375rem;
  line-height:1.7;color:var(--ink2)}
#pr .pr-faq details[open] .pr-faq-a p{animation:prFaq .4s ease}
@keyframes prFaq{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ── the phone's standing invitation ────────────────────────────────── */
#pr .pr-mcta{position:fixed;left:12px;right:12px;bottom:12px;z-index:60;
  display:none;align-items:center;justify-content:space-between;gap:12px;
  background:rgba(29,23,16,.94);color:var(--paper);border-radius:16px;
  padding:12px 12px 12px 18px;box-shadow:0 18px 40px -12px rgba(29,23,16,.5);
  transform:translateY(120%);transition:transform .45s cubic-bezier(.16,1,.3,1)}
#pr .pr-mcta.show{transform:none}
#pr .pr-mcta span{font-size:0.8125rem;color:rgba(248,244,236,.75);line-height:1.3}

/* ── final: the door to the globe ───────────────────────────────────── */
#pr .pr-final{position:relative;margin-top:110px;background:var(--night);color:var(--nink);
  text-align:center;padding:150px clamp(20px,4vw,48px) 190px;overflow:hidden}
#pr .pr-final canvas{position:absolute;inset:0;width:100%;height:100%}
#pr .pr-final-inner{position:relative;max-width:44rem;margin:0 auto}
#pr .pr-final-h{font-family:var(--serif);font-weight:560;letter-spacing:-.014em;line-height:1.05;
  font-size:clamp(2.6rem,5.4vw,4.2rem);margin:0 0 20px;color:var(--nink)}
#pr .pr-final .pr-sub{margin-bottom:38px}
#pr .pr-horizon{position:absolute;left:50%;bottom:-46vw;transform:translateX(-50%);
  width:160vw;aspect-ratio:2/1;border-radius:50%;pointer-events:none;
  background:radial-gradient(closest-side,transparent 62%,rgba(212,180,131,.05) 76%,transparent 79%);
  border-top:1px solid rgba(212,180,131,.35);
  box-shadow:0 -30px 90px -20px rgba(212,180,131,.28)}

/* footer */
#pr .pr-foot{background:var(--night);color:var(--nink3);border-top:1px solid var(--nline);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:30px clamp(20px,4vw,48px) 40px}
#pr .pr-foot .pr-wm{color:var(--nink);font-size:0.9375rem}
#pr .pr-foot .pr-wm span{color:var(--ngold)}
#pr .pr-foot p{font-size:0.8125rem;margin:0}

/* ── responsive ─────────────────────────────────────────────────────── */
@media (max-width:1060px){
  #pr .pr-hero{grid-template-columns:1fr;min-height:0;padding-top:120px;gap:44px;text-align:center}
  #pr .pr-hero-copy{max-width:44rem;margin:0 auto}
  #pr .pr-lede{margin-left:auto;margin-right:auto}
  #pr .pr-hero-cta{justify-content:center}
  #pr .pr-orrery{max-width:440px}
  #pr .pr-night-inner{grid-template-columns:1fr;gap:40px}
  #pr .pr-courses{grid-template-columns:repeat(2,1fr)}
  #pr .pr-prin{grid-template-columns:1fr}
  #pr .pr-nav-links{display:none}
}
@media (max-width:880px){
  #pr .pr-scrolly{height:auto;background:var(--paper2)}
  #pr .pr-scrolly-pin{position:static;height:auto;padding:80px 0;overflow:visible}
  #pr .pr-scrolly-grid{grid-template-columns:1fr;gap:36px}
  #pr .pr-device{aspect-ratio:4/4.2}
  #pr .pr-scene{position:absolute}
  #pr .pr-steps li{opacity:1}
}
@media (max-width:1060px){
  #pr .pr-fac-row{grid-template-columns:1fr}
}
@media (max-width:760px){
  #pr .pr-mcta{display:flex}
  #pr .pr-final{padding-bottom:210px}   /* the door clears the standing invitation */
}
@media (max-width:640px){
  #pr .pr-courses{grid-template-columns:1fr}
  #pr .pr-stats{grid-template-columns:repeat(2,1fr);gap:34px 8px}
  #pr .pr-stats > div{border-left:none}
  #pr .pr-chat{padding:22px 20px}
  #pr .pr-final{padding-top:110px}
  #pr .pr-field{grid-template-columns:96px minmax(0,1fr) 30px}
  #pr .pr-field .fd{display:none}
}

/* ── reduced motion ─────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  #pr .pr-rise,#pr .pr-rev{opacity:1;transform:none;transition:none}
  #pr .pr-btn,#pr .pr-ghost,#pr .pr-course,#pr .pr-pcard{transition:none}
  #pr .pr-btn:hover,#pr .pr-ghost:hover,#pr .pr-course:hover,#pr .pr-pcard:hover{transform:none}
  #pr .pr-flame,#pr .pr-pcard:hover .flame{animation:none}
  #pr .pr-course:hover .pr-course-map path{animation:none}
  #pr .pr-chat-typing i{animation:none}
  #pr .pr-scene{transition:opacity .3s}
  #pr .pr-cn.on circle.halo{animation:none}
  #pr .pr-crv-now{animation:none}
  #pr .pr-w{opacity:1;transform:none;transition:none}
  #pr .pr-fields .bar i{transform:scaleX(1);transition:none}
  #pr .pr-course:hover .pr-emblem svg{animation:none}
  #pr .pr-chat-choices.answered button.picked{animation:none}
  #pr .pr-faq details[open] .pr-faq-a p{animation:none}
  #pr .pr-fac{transition:none} #pr .pr-fac:hover{transform:none}
  #pr .pr-mcta{transition:none}
}