/* PRELUDE_THRESHOLD_v1
   Lightweight editorial threshold. No duplicate Compass, no heavy 3D runtime.
*/
:root{
  color-scheme:dark;
  --p-bg:#02040a;
  --p-deep:#07111a;
  --p-ink:#fff4d8;
  --p-soft:rgba(241,245,250,.78);
  --p-muted:rgba(241,245,250,.56);
  --p-gold:#f3c86f;
  --p-cyan:#8dd8ff;
  --p-line:rgba(255,255,255,.13);
  --p-panel:rgba(6,12,20,.72);
  --p-radius:1.45rem;
  --p-max:1120px;
}
*{box-sizing:border-box}
html{min-width:320px;min-height:100%;background:var(--p-bg);scroll-behavior:smooth}
body{min-width:320px;min-height:100vh;margin:0;overflow-x:hidden;color:var(--p-ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:radial-gradient(circle at 50% -10%,rgba(243,200,111,.09),transparent 30rem),radial-gradient(circle at 18% 24%,rgba(141,216,255,.075),transparent 28rem),linear-gradient(180deg,#07101a 0%,#02040a 68%,#010207 100%);-webkit-font-smoothing:antialiased;text-rendering:geometricPrecision}
body::before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;background:radial-gradient(circle at 8% 12%,rgba(255,255,255,.35) 0 .65px,transparent 1.3px),radial-gradient(circle at 70% 16%,rgba(141,216,255,.28) 0 .65px,transparent 1.3px),radial-gradient(circle at 92% 72%,rgba(243,200,111,.28) 0 .65px,transparent 1.3px);background-size:211px 181px,293px 251px,367px 331px;opacity:.30}
a{color:inherit;text-decoration:none}
button,a{font:inherit;-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible{outline:3px solid rgba(243,200,111,.72);outline-offset:4px}
.prelude-skip{position:fixed;top:.7rem;left:.7rem;z-index:100;transform:translateY(-180%);padding:.65rem .88rem;border-radius:999px;color:#071019;background:linear-gradient(135deg,#fff1b8,var(--p-gold));font-weight:900}.prelude-skip:focus{transform:translateY(0)}
.prelude-shell{position:relative;z-index:1;width:min(var(--p-max),calc(100% - 24px));margin:0 auto;padding:max(12px,env(safe-area-inset-top)) 0 max(48px,env(safe-area-inset-bottom))}
.prelude-topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.65rem 0 .9rem;background:linear-gradient(180deg,rgba(2,4,10,.94),rgba(2,4,10,.64),transparent);backdrop-filter:blur(10px)}
.prelude-brand{display:grid;gap:.18rem;min-width:0}.prelude-brand span{color:var(--p-gold);font-size:.7rem;font-weight:900;letter-spacing:.16em;text-transform:uppercase}.prelude-brand strong{color:var(--p-soft);font-size:.95rem}
.prelude-nav{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:.4rem}.prelude-nav a{min-height:2.35rem;display:inline-flex;align-items:center;padding:.5rem .72rem;border:1px solid var(--p-line);border-radius:999px;color:var(--p-soft);background:rgba(255,255,255,.035);font-size:.72rem;font-weight:850;letter-spacing:.045em;text-transform:uppercase}.prelude-nav a:hover,.prelude-nav a:focus-visible,.prelude-nav a[aria-current="page"]{border-color:rgba(243,200,111,.40);color:var(--p-gold);background:rgba(243,200,111,.075)}
.prelude-main{display:grid;gap:1rem}
.prelude-hero{position:relative;isolation:isolate;min-height:clamp(34rem,76svh,48rem);overflow:hidden;border:1px solid var(--p-line);border-radius:clamp(1.45rem,4vw,2.25rem);background:radial-gradient(circle at 50% 22%,rgba(243,200,111,.09),transparent 24rem),radial-gradient(circle at 50% 66%,rgba(141,216,255,.07),transparent 26rem),linear-gradient(180deg,rgba(7,15,25,.78),rgba(2,5,11,.97));box-shadow:0 2rem 7rem rgba(0,0,0,.52),inset 0 1px 0 rgba(255,255,255,.05)}
.prelude-hero::after{content:"";position:absolute;inset:0;z-index:5;pointer-events:none;box-shadow:inset 0 0 8rem rgba(0,0,0,.52)}
.prelude-atmosphere{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.prelude-horizon{position:absolute;left:8%;right:8%;bottom:31%;height:1px;background:linear-gradient(90deg,transparent,rgba(141,216,255,.28) 22%,rgba(243,200,111,.28) 50%,rgba(141,216,255,.28) 78%,transparent);box-shadow:0 0 2rem rgba(141,216,255,.15)}
.prelude-threshold-line{position:absolute;left:50%;bottom:17%;width:1px;height:42%;background:linear-gradient(180deg,transparent,rgba(243,200,111,.12),rgba(243,200,111,.42),transparent);transform:translateX(-50%);filter:drop-shadow(0 0 .65rem rgba(243,200,111,.20))}
.prelude-star{position:absolute;width:.24rem;height:.24rem;border-radius:50%;background:#fff7dc;box-shadow:0 0 .8rem rgba(255,244,202,.9),0 0 1.6rem rgba(141,216,255,.22);animation:prelude-star 3.2s ease-in-out infinite alternate}.prelude-star--1{left:16%;top:22%;animation-delay:-.8s}.prelude-star--2{right:19%;top:18%;animation-delay:-1.6s}.prelude-star--3{left:27%;bottom:29%;animation-delay:-2.1s}.prelude-star--4{right:28%;bottom:34%;animation-delay:-.4s}@keyframes prelude-star{from{opacity:.28;transform:scale(.76)}to{opacity:.92;transform:scale(1.22)}}
.prelude-hero__copy{position:relative;z-index:8;display:grid;align-content:center;gap:.85rem;min-height:clamp(28rem,65svh,42rem);max-width:55rem;padding:clamp(1.25rem,5vw,3.4rem)}
.prelude-kicker{margin:0;color:var(--p-gold);font-size:.72rem;font-weight:900;letter-spacing:.17em;text-transform:uppercase}
.prelude-hero h1{max-width:10ch;margin:0;color:#fff2cf;font-family:Georgia,"Times New Roman",serif;font-size:clamp(3.5rem,10vw,7.8rem);font-weight:650;line-height:.82;letter-spacing:-.055em;text-wrap:balance}
.prelude-hero__lead{max-width:48rem;margin:0;color:rgba(247,243,229,.88);font-size:clamp(1rem,2.2vw,1.22rem);line-height:1.58}
.prelude-actions,.prelude-entry__actions{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.15rem}.prelude-button{min-height:2.7rem;display:inline-flex;align-items:center;justify-content:center;padding:.62rem .92rem;border:1px solid var(--p-line);border-radius:999px;color:var(--p-ink);background:rgba(5,12,19,.68);font-size:.76rem;font-weight:900;letter-spacing:.055em;text-transform:uppercase;backdrop-filter:blur(10px)}.prelude-button:hover,.prelude-button:focus-visible{border-color:rgba(243,200,111,.45);background:rgba(243,200,111,.09)}.prelude-button--primary{color:#091017;border-color:rgba(255,229,163,.72);background:linear-gradient(135deg,#fff1b8,var(--p-gold))}
.prelude-thesis{position:absolute;z-index:9;right:clamp(1.1rem,4vw,2.4rem);bottom:clamp(1.1rem,4vw,2.4rem);max-width:31rem;margin:0;padding:1rem 1.15rem;border:1px solid rgba(243,200,111,.18);border-left:3px solid rgba(243,200,111,.48);border-radius:1rem;color:rgba(255,242,207,.96);background:linear-gradient(135deg,rgba(243,200,111,.07),rgba(7,18,26,.58));font-family:Georgia,"Times New Roman",serif;font-size:clamp(1.05rem,2.25vw,1.42rem);font-style:italic;line-height:1.48;backdrop-filter:blur(9px)}
.prelude-reads,.prelude-entry{border:1px solid var(--p-line);border-radius:var(--p-radius);background:radial-gradient(circle at 0 0,rgba(243,200,111,.07),transparent 21rem),linear-gradient(145deg,rgba(8,18,26,.86),rgba(4,9,16,.72));box-shadow:0 1.5rem 4.5rem rgba(0,0,0,.30),inset 0 1px 0 rgba(255,255,255,.05)}
.prelude-reads{display:grid;gap:1rem;padding:clamp(1.1rem,3vw,1.8rem)}.prelude-reads__header{display:grid;gap:.55rem;max-width:55rem}.prelude-reads h2,.prelude-entry h2{margin:0;color:#fff2cf;font-family:Georgia,"Times New Roman",serif;font-size:clamp(2rem,4.8vw,3.8rem);font-weight:650;line-height:.96;letter-spacing:-.04em;text-wrap:balance}.prelude-reads__header>p:last-child,.prelude-entry p{margin:0;color:var(--p-soft);line-height:1.6}
.prelude-read-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem;padding:.35rem;border:1px solid rgba(255,255,255,.08);border-radius:1rem;background:rgba(255,255,255,.025)}.prelude-read-tabs button{min-height:3.3rem;display:flex;align-items:center;gap:.6rem;padding:.72rem .82rem;border:1px solid transparent;border-radius:.8rem;color:var(--p-soft);background:transparent;text-align:left;font-size:.77rem;font-weight:850;cursor:pointer}.prelude-read-tabs button span{color:var(--p-gold);font-size:.67rem;letter-spacing:.10em}.prelude-read-tabs button[aria-selected="true"]{border-color:rgba(243,200,111,.28);color:#fff3d1;background:linear-gradient(135deg,rgba(243,200,111,.10),rgba(141,216,255,.04));box-shadow:inset 0 1px 0 rgba(255,255,255,.05)}
.prelude-read-stage{min-height:18rem;display:grid}.prelude-read-panel{display:grid;grid-template-columns:auto minmax(0,1fr);gap:clamp(1rem,3vw,2rem);align-items:start;padding:clamp(1rem,3vw,1.5rem);border:1px solid rgba(255,255,255,.09);border-radius:1rem;background:linear-gradient(160deg,rgba(255,255,255,.045),rgba(255,255,255,.015))}.prelude-read-panel[hidden]{display:none!important}.prelude-read-number{margin:0;color:rgba(243,200,111,.48);font-family:Georgia,"Times New Roman",serif;font-size:clamp(3rem,8vw,6.5rem);line-height:.8}.prelude-read-panel>div{display:grid;gap:.65rem}.prelude-read-panel h3{max-width:19ch;margin:0;color:#fff2cf;font-family:Georgia,"Times New Roman",serif;font-size:clamp(1.65rem,4vw,3rem);font-weight:650;line-height:1;letter-spacing:-.035em}.prelude-read-panel p{max-width:50rem;margin:0;color:var(--p-soft);line-height:1.62}.prelude-read-guidance{margin:0;color:var(--p-muted);font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.prelude-entry{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:1rem 2rem;align-items:end;padding:clamp(1.1rem,3vw,1.8rem)}.prelude-entry>div:first-child{display:grid;gap:.55rem;max-width:48rem}.prelude-entry__actions{justify-content:flex-end}
.prelude-footer{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem .25rem .2rem;color:var(--p-muted);font-size:.72rem}.prelude-footer nav{display:flex;flex-wrap:wrap;gap:.65rem}.prelude-footer a:hover,.prelude-footer a:focus-visible{color:var(--p-gold)}
@media(max-width:820px){.prelude-thesis{position:relative;right:auto;bottom:auto;z-index:8;margin:0 1rem 1rem;max-width:none}.prelude-hero__copy{min-height:33rem;padding-bottom:1.2rem}.prelude-read-tabs{grid-template-columns:1fr}.prelude-read-stage{min-height:0}.prelude-entry{grid-template-columns:1fr}.prelude-entry__actions{justify-content:flex-start}}
@media(max-width:640px){.prelude-topbar{align-items:flex-start}.prelude-nav{gap:.3rem}.prelude-nav a{padding:.45rem .58rem;font-size:.66rem}.prelude-hero{min-height:0}.prelude-hero__copy{min-height:31rem;padding:1.15rem}.prelude-hero h1{font-size:clamp(3rem,16vw,5rem)}.prelude-read-panel{grid-template-columns:1fr}.prelude-read-number{font-size:2.5rem}.prelude-entry__actions .prelude-button{width:100%}.prelude-footer{display:grid}.prelude-footer nav{justify-content:flex-start}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.prelude-star{animation:none!important;opacity:.58}.prelude-button,.prelude-read-tabs button{transition:none!important}}