:root{
  --void:#0A0A0C;
  --stone:#141318;
  --stone-2:#1C1A20;
  --bone:#ECE4D2;
  --bone-dim:#A39C8C;
  --muted:#6E675B;
  --brass:#C49A4A;
  --brass-bright:#E3BE6E;
  --ember:#8C2B22;
  --line:rgba(196,154,74,.28);
  --maxw:1240px;
  --display:'Fraunces',Georgia,serif;
  --body:'Archivo',system-ui,sans-serif;
  --mono:'Space Mono','Courier New',monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:hidden}
body{
  background:var(--void);color:var(--bone);
  font-family:var(--body);font-weight:400;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  width:100%;max-width:100%;
}
/* global overflow guard — break long unbroken strings, never exceed viewport */
p,h1,h2,h3,blockquote,cite,dt,dd,li,span,a,strong{overflow-wrap:break-word;word-wrap:break-word}
img{max-width:100%;display:block}
em{font-style:italic;color:var(--brass-bright)}

/* ---------- shared ---------- */
section{position:relative}
.eyebrow{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.32em;
  text-transform:uppercase;color:var(--brass);margin-bottom:1.4rem;
}
.eyebrow--center{text-align:center}
.kicker{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.28em;
  text-transform:uppercase;color:var(--bone-dim);
  display:flex;align-items:center;gap:.9rem;margin-bottom:2.4rem;
}
.kicker span{
  color:var(--void);background:var(--brass);font-weight:700;
  padding:.18em .5em;border-radius:1px;letter-spacing:.1em;
}
.reveal{opacity:0;transform:translateY(34px);transition:opacity 1s cubic-bezier(.2,.7,.2,1),transform 1s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- intro ---------- */
.intro{position:fixed;inset:0;z-index:100;background:var(--void);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.4rem;
  transition:opacity .9s ease,visibility .9s ease}
.intro.gone{opacity:0;visibility:hidden}
.intro__cross{position:relative;width:74px;height:74px}
.intro__cross span{position:absolute;background:var(--brass)}
.intro__h{top:50%;left:50%;height:1px;width:0;transform:translate(-50%,-50%);animation:drawH 1s .15s forwards}
.intro__v{top:50%;left:50%;width:1px;height:0;transform:translate(-50%,-50%);animation:drawV 1s .15s forwards}
.intro__cross::after{content:"";position:absolute;inset:0;border:1px solid var(--line);border-radius:50%;transform:scale(.4);opacity:0;animation:ring 1.1s .5s forwards}
@keyframes drawH{to{width:74px}}
@keyframes drawV{to{height:74px}}
@keyframes ring{to{transform:scale(1);opacity:1}}
.intro__coords{font-family:var(--mono);font-size:.8rem;letter-spacing:.24em;color:var(--bone);opacity:0;animation:fadeUp .7s 1s forwards}
.intro__label{font-family:var(--mono);font-size:.64rem;letter-spacing:.4em;color:var(--muted);opacity:0;animation:fadeUp .7s 1.2s forwards}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------- hero ---------- */
.hero{height:100svh;min-height:620px;position:relative;overflow:hidden;display:flex;
  align-items:flex-start;justify-content:center;text-align:center}
.hero__img{position:absolute;inset:-6% -6% -6% -6%;background-size:cover;background-position:center 60%;
  filter:saturate(.8) contrast(1.04) brightness(.66);transform:scale(1.06);will-change:transform}
.hero__scrim{position:absolute;inset:0;background:
  linear-gradient(180deg,rgba(10,10,12,.78) 0%,rgba(10,10,12,.25) 26%,transparent 48%,rgba(10,10,12,.5) 100%);}
.geom{position:absolute;inset:0;width:100%;height:100%;opacity:.5;mix-blend-mode:screen;pointer-events:none}
.geom__l{fill:none;stroke:var(--brass);stroke-width:1;vector-effect:non-scaling-stroke;
  stroke-dasharray:2600;stroke-dashoffset:2600}
.geom.draw .geom__l{animation:dash 2.6s ease forwards}
.geom.draw .geom__l:nth-child(2){animation-delay:.25s}
.geom.draw .geom__l:nth-child(3){animation-delay:.5s}
.geom.draw .geom__l:nth-child(4){animation-delay:.6s}
.geom.draw .geom__l:nth-child(5){animation-delay:.75s}
@keyframes dash{to{stroke-dashoffset:0}}
.hero__body{position:relative;z-index:3;width:100%;max-width:var(--maxw);
  margin:0 auto;padding:11vh 6vw 0}
.hero__title{font-family:var(--display);font-weight:300;line-height:.95;
  font-size:clamp(2.8rem,9vw,8rem);letter-spacing:-.02em;margin:.5rem auto .6rem}
.hero__quote{font-family:var(--display);font-style:italic;font-weight:300;
  font-size:clamp(1.1rem,2.2vw,1.7rem);color:var(--bone);margin:0 auto}
.hero__cue{position:absolute;bottom:2.2rem;left:50%;transform:translateX(-50%);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:.6rem;
  font-family:var(--mono);font-size:.6rem;letter-spacing:.4em;text-transform:uppercase;color:var(--bone-dim)}
.hero__cue i{width:1px;height:42px;background:linear-gradient(var(--brass),transparent);animation:cue 2s infinite}
@keyframes cue{0%,100%{transform:scaleY(.4);opacity:.4;transform-origin:top}50%{transform:scaleY(1);opacity:1;transform-origin:top}}

/* ---------- threshold / archway ---------- */
.threshold{position:relative;height:100svh;min-height:600px;overflow:hidden;background:var(--void);
  perspective:1100px;perspective-origin:65% 51%}
.threshold__black{position:absolute;inset:0;background:var(--void)}
.threshold__stage{position:absolute;inset:0;display:grid;place-items:center;transform-style:preserve-3d}
.threshold__warp{position:absolute;inset:0;transform-origin:65% 51%;backface-visibility:hidden;will-change:transform}
.threshold__svg{width:100%;height:100%;display:block}
.threshold__svg image{filter:brightness(.5) saturate(.8) contrast(1.05)}
.threshold__key{filter:drop-shadow(0 0 6px rgba(196,154,74,.5))}
.threshold__label{position:absolute;left:50%;bottom:9vh;transform:translateX(-50%);z-index:2;
  font-family:var(--mono);font-size:.66rem;letter-spacing:.4em;text-transform:uppercase;color:var(--brass);
  white-space:nowrap;max-width:90vw;text-align:center}

/* ---------- ticker ---------- */
.ticker{background:var(--brass);color:var(--void);overflow:hidden;padding:.85rem 0;border-block:1px solid #00000022}
.ticker__track{display:flex;align-items:center;gap:2rem;width:max-content;animation:scroll 34s linear infinite;
  font-family:var(--mono);font-size:.78rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase}
.ticker__track b{opacity:.5}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ---------- thesis ---------- */
.thesis{max-width:var(--maxw);margin:0 auto;padding:13vh 6vw}
.thesis__h{font-family:var(--display);font-weight:300;font-size:clamp(1.8rem,4.4vw,3.4rem);
  line-height:1.18;letter-spacing:-.01em;max-width:20ch}
.thesis__p{margin-top:2rem;max-width:60ch;font-size:1.06rem;color:var(--bone-dim)}

/* ---------- legacy ---------- */
.legacy{max-width:var(--maxw);margin:0 auto;padding:9vh 6vw 13vh}
.timeline{list-style:none;border-top:1px solid var(--line)}
.timeline li{display:grid;grid-template-columns:130px 1fr;gap:2rem;
  padding:2.2rem 0;border-bottom:1px solid var(--line);align-items:start}
.timeline__yr{font-family:var(--mono);font-size:1.1rem;color:var(--brass);letter-spacing:.04em}
.timeline h3{font-family:var(--display);font-weight:400;font-size:1.5rem;margin-bottom:.5rem;font-style:italic}
.timeline p{color:var(--bone-dim);max-width:54ch}

/* ---------- full bleed ---------- */
.bleed{height:100svh;min-height:560px;display:flex;align-items:flex-end;overflow:hidden;position:relative}
.bleed__img{position:absolute;inset:-8% 0;background-size:cover;background-position:center;
  filter:brightness(.5) saturate(.85);will-change:transform}
.bleed__scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,10,12,.4),rgba(10,10,12,.85))}
.bleed__quote{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:0 6vw 12vh;width:100%}
.bleed__quote p{font-family:var(--display);font-style:italic;font-weight:300;
  font-size:clamp(1.7rem,4.2vw,3.3rem);line-height:1.18;max-width:22ch}
.bleed__quote cite{display:block;font-style:normal;font-family:var(--mono);font-size:.78rem;
  letter-spacing:.12em;color:var(--brass);margin-top:1.6rem;max-width:52ch;line-height:1.7}

/* ---------- full-viewport scenes ---------- */
.scenes{position:relative}
.scenes__intro{font-family:var(--mono);font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;
  color:var(--bone-dim);display:flex;align-items:center;gap:.9rem;
  max-width:var(--maxw);margin:0 auto;padding:13vh 6vw 4vh}
.scenes__num{color:var(--void);background:var(--brass);font-weight:700;padding:.18em .5em;border-radius:1px}
.scene{height:100svh;min-height:560px;position:relative;overflow:clip;display:flex;align-items:flex-end}
.scene__img{position:absolute;inset:-12% 0;background-size:cover;background-position:center;
  filter:brightness(.62) saturate(.82) contrast(1.03);will-change:transform;
  clip-path:inset(0 0 0 0)}
.scene__veil{position:absolute;inset:0;background:
  linear-gradient(180deg,rgba(10,10,12,.5) 0%,transparent 30%,transparent 55%,rgba(10,10,12,.9) 100%)}
.scene__cap{position:relative;z-index:2;max-width:var(--maxw);width:100%;margin:0 auto;padding:0 6vw 11vh}
.scene__tag{font-family:var(--mono);font-size:.66rem;letter-spacing:.28em;text-transform:uppercase;color:var(--brass)}
.scene__cap h3{font-family:var(--display);font-weight:300;font-style:italic;
  font-size:clamp(2.2rem,6vw,5rem);line-height:1;letter-spacing:-.01em;margin:.5rem 0 .7rem}
.scene__cap p{font-size:clamp(1rem,1.6vw,1.2rem);color:var(--bone-dim);max-width:46ch}
/* reveal transitions driven by JS .is-in */
.scene__img{transform:scale(1.18)}
.scene.is-in .scene__img{}
.scene__cap>*{opacity:0;transform:translateY(30px)}
.scene.is-in .scene__tag{opacity:1;transform:none;transition:.7s cubic-bezier(.2,.7,.2,1) .15s}
.scene.is-in .scene__cap h3{opacity:1;transform:none;transition:.9s cubic-bezier(.2,.7,.2,1) .26s}
.scene.is-in .scene__cap p{opacity:1;transform:none;transition:.9s cubic-bezier(.2,.7,.2,1) .4s}
.scene--archival .scene__img{filter:sepia(.5) brightness(.62) contrast(1.05) saturate(.7)}
.scene--archival .scene__veil{background:
  radial-gradient(120% 90% at 50% 40%,transparent 40%,rgba(10,10,12,.7) 100%),
  linear-gradient(180deg,rgba(10,10,12,.45),transparent 40%,rgba(10,10,12,.9))}

/* ---------- drill hall ---------- */
.hall{position:relative;padding:16vh 6vw 16vh;text-align:center;overflow:hidden}
.hall>*:not(.hall__bg){position:relative;z-index:2;max-width:var(--maxw);margin-inline:auto}
.hall__bg{position:absolute;inset:0;background-size:cover;background-position:center;
  filter:grayscale(1) brightness(.32) contrast(1.1);opacity:.55}
.hall::after{content:"";position:absolute;inset:0;background:
  linear-gradient(180deg,var(--void),transparent 30%,transparent 70%,var(--void));z-index:1}
.hall__measure{display:flex;justify-content:space-between;max-width:760px;margin:0 auto 2.4rem;
  font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;color:var(--brass);position:relative}
.hall__measure::before{content:"";position:absolute;top:50%;left:0;right:0;height:1px;
  background:repeating-linear-gradient(90deg,var(--line) 0 8px,transparent 8px 16px)}
.hall__measure span{background:var(--void);padding:0 .7rem;position:relative}
.hall__h{font-family:var(--display);font-weight:300;font-size:clamp(2.4rem,7vw,6rem);
  line-height:.98;letter-spacing:-.02em}
.hall__p{max-width:58ch;margin:2rem auto 0;color:var(--bone-dim);font-size:1.06rem}

/* ---------- node ---------- */
.node{max-width:var(--maxw);margin:0 auto;padding:9vh 6vw 13vh}
.node__grid{display:grid;grid-template-columns:400px 1fr;gap:5rem;align-items:center}
.node__map{position:relative;overflow:hidden;border:1px solid var(--line)}
.node__mapimg{aspect-ratio:4/5;background-size:cover;background-position:center;
  filter:sepia(.35) brightness(.8) contrast(1.05);transition:transform 1.4s ease,filter 1.4s ease}
.node__map:hover .node__mapimg{transform:scale(1.05);filter:sepia(.15) brightness(.95)}
.node__map figcaption{font-family:var(--mono);font-size:.62rem;letter-spacing:.1em;color:var(--muted);
  padding:.9rem 1rem;background:var(--stone);border-top:1px solid var(--line)}
.node h3{font-family:var(--display);font-style:italic;font-weight:400;font-size:clamp(1.6rem,3.6vw,2.6rem);margin-bottom:1.2rem}
.node p{color:var(--bone-dim);max-width:54ch;margin-bottom:1rem}
.node__coord{font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;color:var(--brass)!important;margin-top:1.4rem}
.node__facts{display:grid;grid-template-columns:1fr 1fr;gap:1px;margin:1.8rem 0 1.6rem;
  background:var(--line);border:1px solid var(--line)}
.node__facts div{background:var(--void);padding:1.1rem 1.2rem}
.node__facts dt{font-family:var(--display);font-style:italic;font-size:1.18rem;color:var(--brass-bright);margin-bottom:.35rem}
.node__facts dd{font-family:var(--mono);font-size:.64rem;line-height:1.5;letter-spacing:.05em;
  text-transform:uppercase;color:var(--bone-dim);margin:0}
@media(max-width:760px){.node__facts{grid-template-columns:1fr}}
.node__riddle{font-family:var(--display);font-style:italic;font-size:1.15rem;color:var(--brass-bright);margin:.4rem 0 1.2rem}
.node__cta{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--brass);
  border-bottom:1px solid var(--brass);padding-bottom:2px;transition:color .2s,border-color .2s;
  display:inline-block;max-width:100%}
.node__cta:hover{color:var(--brass-bright);border-color:var(--brass-bright)}

/* ---------- uses ---------- */
.uses{max-width:var(--maxw);margin:0 auto;padding:9vh 6vw 13vh}
.uses__h{font-family:var(--display);font-weight:300;font-size:clamp(2rem,5vw,3.6rem);margin-bottom:3rem;letter-spacing:-.01em}
.uses__row{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.uses__row article{background:var(--void);padding:2rem 1.4rem;transition:background .4s ease}
.uses__row article:hover{background:var(--stone-2)}
.uses__row h3{font-family:var(--display);font-style:italic;font-weight:400;font-size:1.4rem;margin-bottom:.8rem;color:var(--brass-bright)}
.uses__row p{font-size:.9rem;color:var(--bone-dim)}
.uses__credit{font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;color:var(--muted);margin-top:2.4rem;text-align:center}

/* ---------- cta ---------- */
.cta{background:linear-gradient(180deg,var(--void),var(--stone));border-top:1px solid var(--line)}
.cta__inner{max-width:680px;margin:0 auto;padding:15vh 6vw;text-align:center}
.cta__h{font-family:var(--display);font-weight:300;font-size:clamp(2.2rem,6vw,4.2rem);line-height:1.02;margin:.4rem 0 1.4rem;letter-spacing:-.02em}
.cta__p{color:var(--bone-dim);max-width:50ch;margin:0 auto 3rem}
.cta__form{display:flex;flex-direction:column;gap:.8rem;text-align:left}
.cta__form input,.cta__form textarea{background:#00000040;border:1px solid var(--line);color:var(--bone);
  font-family:var(--body);font-size:16px;padding:1rem 1.1rem;border-radius:2px;resize:vertical;
  width:100%;min-height:44px}
.cta__form input:focus,.cta__form textarea:focus{outline:none;border-color:var(--brass);background:#00000060}
.cta__form ::placeholder{color:var(--muted)}
.cta__form button{background:var(--brass);color:var(--void);border:none;font-family:var(--mono);
  font-weight:700;font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;
  padding:1.15rem;border-radius:2px;cursor:pointer;transition:background .3s ease,transform .2s ease;
  min-height:44px;width:100%}
.cta__form button:hover{background:var(--brass-bright);transform:translateY(-1px)}
.cta__price{font-family:var(--mono);font-size:.74rem;letter-spacing:.22em;text-transform:uppercase;color:var(--brass);margin-top:1.8rem}
.cta__status{font-family:var(--mono);font-size:.8rem;letter-spacing:.04em;color:var(--brass-bright);min-height:1.2em;margin-top:1rem;text-align:center}

/* ---------- secret flag hotspot (top-center; invisible, no pointer hint) ---------- */
.flag-key{position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:180px;max-width:36vw;height:15vh;min-height:96px;z-index:6;
  background:transparent;border:0;padding:0;cursor:default;-webkit-tap-highlight-color:transparent;outline:none}
@media(max-width:760px){.flag-key{width:130px;height:12vh;min-height:80px}}

/* ---------- secret portal modal ---------- */
.portal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center}
.portal.open{display:flex;animation:portalIn .25s ease}
@keyframes portalIn{from{opacity:0}to{opacity:1}}
.portal__backdrop{position:absolute;inset:0;background:rgba(5,5,7,.86);backdrop-filter:blur(6px)}
.portal__card{position:relative;width:min(92vw,380px);max-height:90svh;overflow-y:auto;
  -webkit-overflow-scrolling:touch;background:var(--stone);border:1px solid var(--line);
  border-radius:14px;padding:2.2rem 1.9rem;box-shadow:0 40px 90px -40px rgba(0,0,0,.9);text-align:left}
.portal__x{position:absolute;top:.4rem;right:.4rem;background:none;border:0;color:var(--muted);font-size:1.5rem;
  cursor:pointer;line-height:1;width:44px;height:44px;display:flex;align-items:center;justify-content:center}
.portal__x:hover{color:var(--bone)}
.portal__eyebrow{font-family:var(--mono);font-size:.6rem;letter-spacing:.34em;text-transform:uppercase;color:var(--brass);margin-bottom:.5rem}
.portal__h{font-family:var(--display);font-style:italic;font-weight:300;font-size:1.9rem;color:var(--bone);margin-bottom:1.4rem}
.portal input{width:100%;background:#00000040;border:1px solid var(--line);color:var(--bone);border-radius:8px;
  padding:.7rem .8rem;margin-bottom:.7rem;font-family:var(--body);font-size:16px;min-height:44px}
.portal input:focus{outline:none;border-color:var(--brass);background:#00000066}
.portal input::placeholder{color:var(--muted)}
.portal__btn{display:flex;align-items:center;justify-content:center;width:100%;min-height:44px;text-align:center;
  background:var(--brass);color:var(--void);border:none;
  border-radius:8px;padding:.75rem;font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  font-weight:700;cursor:pointer;text-decoration:none;transition:background .2s,transform .15s;margin-top:.3rem}
.portal__btn:hover{background:var(--brass-bright);transform:translateY(-1px)}
.portal__btn--ghost{background:transparent;color:var(--bone);border:1px solid var(--line)}
.portal__btn--ghost:hover{background:#ffffff0d;border-color:var(--brass)}
.portal__or{display:flex;align-items:center;gap:.7rem;color:var(--muted);font-family:var(--mono);font-size:.62rem;
  letter-spacing:.2em;text-transform:uppercase;margin:.9rem 0}
.portal__or::before,.portal__or::after{content:"";flex:1;height:1px;background:var(--line)}
.portal__link{display:block;width:100%;min-height:44px;background:none;border:0;color:var(--bone-dim);font-family:var(--mono);
  font-size:.68rem;letter-spacing:.05em;cursor:pointer;margin-top:.9rem;text-align:center}
.portal__link:hover{color:var(--brass)}
.portal__who{color:var(--bone-dim);font-size:.9rem;margin-bottom:1rem}
.portal__msg{font-family:var(--mono);font-size:.72rem;color:var(--brass-bright);min-height:1.1em;margin-top:1rem;text-align:center}

/* ---------- footer ---------- */
.foot{max-width:var(--maxw);margin:0 auto;padding:5vh 6vw;display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:1.5rem;border-top:1px solid var(--line)}
.foot strong{font-family:var(--display);font-style:italic;font-weight:400;font-size:1.3rem;display:block}
.foot span{display:block;font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;color:var(--muted);margin-top:.4rem}
.foot__meta{text-align:right}

/* ---------- responsive ---------- */

/* ===== tablet landscape & down (<=1024px) ===== */
@media(max-width:1024px){
  .node__grid{grid-template-columns:340px 1fr;gap:3rem}
  .uses__row{grid-template-columns:repeat(3,1fr)}
  .uses__row article:nth-child(4),.uses__row article:nth-child(5){border-top:1px solid var(--line)}
}

/* ===== tablet portrait & down (<=860px) ===== */
@media(max-width:860px){
  .timeline li{grid-template-columns:80px 1fr;gap:1.2rem}
  .node__grid{grid-template-columns:1fr;gap:2.5rem}
  .node__map{max-width:360px}
  .uses__row{grid-template-columns:1fr 1fr}
  .uses__row article{border-top:none}
  .foot{flex-direction:column}.foot__meta{text-align:left}
  .scene__cap{padding-bottom:9vh}
}

/* ===== phones (<=480px) ===== */
@media(max-width:480px){
  /* tighter section gutters so nothing crowds the edge */
  .thesis,.legacy,.node,.uses,.bleed__quote,.scene__cap,.scenes__intro,.hall{padding-left:7vw;padding-right:7vw}
  .cta__inner{padding-left:7vw;padding-right:7vw}

  /* single-column collapses */
  .uses__row{grid-template-columns:1fr}
  .node__facts{grid-template-columns:1fr}

  /* timeline becomes single stacked column (year above text) */
  .timeline li{grid-template-columns:1fr;gap:.4rem;padding:1.6rem 0}
  .timeline li::before{display:none}
  .timeline__yr{font-size:1rem}

  /* hero spacing */
  .hero__body{padding:14vh 7vw 0}
  .hero__cue{bottom:1.6rem}

  /* threshold label sits a touch higher, smaller tracking so it never overflows */
  .threshold__label{letter-spacing:.28em;font-size:.6rem;bottom:7vh}

  /* node map full width, fact grid readable */
  .node__map{max-width:none}
  .node__coord{letter-spacing:.06em;font-size:.68rem}

  /* ticker a touch smaller */
  .ticker__track{gap:1.4rem;font-size:.7rem;letter-spacing:.14em}

  /* hall measure shouldn't stretch */
  .hall__measure{max-width:100%}

  /* form full width, comfortable */
  .cta__inner{padding-top:11vh;padding-bottom:12vh}

  /* sound toggle a little closer to the corner, clear of form */
  .sound{right:1rem;bottom:1rem}

  /* footer text scales down */
  .foot strong{font-size:1.15rem}
}

/* ===== small phones (<=390px) ===== */
@media(max-width:390px){
  .thesis,.legacy,.node,.uses,.bleed__quote,.scene__cap,.scenes__intro,.hall,.cta__inner{
    padding-left:6vw;padding-right:6vw}
  .scene__cap::before{left:6vw}
  .node__facts dt{font-size:1.05rem}
  .node__coord{font-size:.62rem;letter-spacing:.03em}
  .intro__coords{font-size:.72rem;letter-spacing:.16em}
  .foot{padding-left:6vw;padding-right:6vw}
  .ticker__track{gap:1.1rem;font-size:.66rem}
}

/* ---------- sound toggle ---------- */
.sound{position:fixed;right:1.4rem;bottom:1.4rem;z-index:90;
  display:flex;align-items:center;gap:.6rem;min-height:44px;
  background:rgba(10,10,12,.7);backdrop-filter:blur(8px);
  border:1px solid var(--line);color:var(--bone);
  padding:.6rem .9rem;border-radius:40px;cursor:pointer;
  font-family:var(--mono);font-size:.6rem;letter-spacing:.24em;text-transform:uppercase;
  transition:border-color .3s ease,background .3s ease}
.sound:hover{border-color:var(--brass);background:rgba(10,10,12,.9)}
.sound__bars{display:flex;align-items:flex-end;gap:2px;height:14px}
.sound__bars i{width:2px;height:4px;background:var(--brass);border-radius:1px}
.sound.on .sound__bars i{animation:eq .9s ease-in-out infinite}
.sound.on .sound__bars i:nth-child(2){animation-delay:.18s}
.sound.on .sound__bars i:nth-child(3){animation-delay:.36s}
.sound.on .sound__bars i:nth-child(4){animation-delay:.12s}
@keyframes eq{0%,100%{height:4px}50%{height:14px}}
.sound.on{border-color:var(--brass)}

/* ============ CINEMATIC POLISH ============ */

/* film grain + vignette over everything (below UI) */
.fx-grain{position:fixed;inset:-50%;z-index:70;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode:overlay;animation:grain 0.6s steps(2) infinite;will-change:transform}
@keyframes grain{0%{transform:translate(0,0)}25%{transform:translate(-3%,2%)}50%{transform:translate(2%,-3%)}75%{transform:translate(-2%,-2%)}100%{transform:translate(3%,1%)}}
.fx-vignette{position:fixed;inset:0;z-index:69;pointer-events:none;
  background:radial-gradient(130% 110% at 50% 42%,transparent 52%,rgba(7,7,9,.5) 100%)}

/* hero — directional top light + title bloom */
.hero__img{filter:saturate(.85) contrast(1.07) brightness(.7)}
.hero::before{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background:radial-gradient(80% 55% at 50% 0%,rgba(196,154,74,.16),transparent 60%)}
.hero__title{text-shadow:0 2px 40px rgba(0,0,0,.55),0 0 1px rgba(236,228,210,.4)}
.hero__eyebrow,.eyebrow{text-shadow:0 1px 10px rgba(0,0,0,.5)}
.hero__quote{text-shadow:0 1px 24px rgba(0,0,0,.6)}

/* threshold — warm light blooming THROUGH the archway */
.threshold__black{background:
  radial-gradient(30% 30% at 65% 51%,rgba(196,154,74,.22),rgba(120,80,30,.06) 45%,var(--void) 72%),var(--void)}
.threshold__key{filter:drop-shadow(0 0 10px rgba(227,190,110,.8)) drop-shadow(0 0 28px rgba(196,154,74,.4))}
.threshold__label{text-shadow:0 0 18px rgba(196,154,74,.6)}

/* full-bleed scenes — vignette + edge light + legible captions */
.scene__veil{background:
  radial-gradient(120% 90% at 50% 38%,transparent 42%,rgba(8,8,10,.62) 100%),
  linear-gradient(180deg,rgba(10,10,12,.5) 0%,transparent 32%,transparent 52%,rgba(10,10,12,.92) 100%)}
.scene__cap h3{text-shadow:0 3px 36px rgba(0,0,0,.7)}
.scene__cap p{text-shadow:0 2px 18px rgba(0,0,0,.7)}
.scene__tag{text-shadow:0 0 16px rgba(196,154,74,.45)}
.scene__cap::before{content:"";position:absolute;left:6vw;top:-1.4rem;width:46px;height:1px;
  background:linear-gradient(90deg,var(--brass),transparent)}
.scene__cap{position:relative}

/* pool bleed — warmer grade + glow on the quote */
.bleed__img{filter:brightness(.52) saturate(.9) contrast(1.06)}
.bleed__quote p{text-shadow:0 3px 40px rgba(0,0,0,.7)}

/* ticker — depth */
.ticker{box-shadow:inset 0 14px 24px -18px rgba(0,0,0,.6),inset 0 -14px 24px -18px rgba(0,0,0,.6);
  background:linear-gradient(180deg,#d4a857,var(--brass))}

/* timeline — lit year markers */
.timeline__yr{text-shadow:0 0 16px rgba(196,154,74,.4)}
.timeline li{transition:background .5s ease}
.timeline li:hover{background:linear-gradient(90deg,rgba(196,154,74,.05),transparent)}

/* uses — gold-glow lift on hover */
.uses__row article{position:relative;transition:background .4s ease,transform .4s ease}
.uses__row article:hover{transform:translateY(-4px);
  box-shadow:0 -2px 0 var(--brass),0 24px 50px -30px rgba(196,154,74,.5)}

/* node map — framed + lit */
.node__map{box-shadow:0 30px 60px -40px rgba(0,0,0,.9)}

/* cta — radiant button + section light */
.cta{position:relative}
.cta::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(60% 50% at 50% 100%,rgba(196,154,74,.12),transparent 70%)}
.cta__h{text-shadow:0 2px 40px rgba(0,0,0,.5)}
.cta__form button{box-shadow:0 10px 40px -16px rgba(196,154,74,.7);position:relative;overflow:hidden}
.cta__form button::after{content:"";position:absolute;inset:0;
  background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);
  transform:translateX(-130%);transition:transform .7s ease}
.cta__form button:hover::after{transform:translateX(130%)}

/* sound toggle — glow when active */
.sound.on{box-shadow:0 0 24px -4px rgba(196,154,74,.6)}

/* gentle entrance for the intro→hero handoff already handled; add scrollbar polish */
::selection{background:var(--brass);color:var(--void)}
html{scrollbar-color:var(--brass) var(--void)}

/* ============ MICRO-INTERACTIONS ============ */

/* hero entrance — staggered rise once the survey lifts */
.hero__body .eyebrow,.hero__title,.hero__quote{opacity:0;transform:translateY(26px) scale(.985);filter:blur(6px)}
.entered .hero__body .eyebrow{animation:rise .9s cubic-bezier(.2,.7,.2,1) .05s forwards}
.entered .hero__title{animation:rise 1.1s cubic-bezier(.2,.7,.2,1) .22s forwards}
.entered .hero__quote{animation:rise 1s cubic-bezier(.2,.7,.2,1) .5s forwards}
@keyframes rise{to{opacity:1;transform:none;filter:blur(0)}}
/* title settles its tracking */
.hero__title{letter-spacing:.04em}
.entered .hero__title{animation:rise 1.1s cubic-bezier(.2,.7,.2,1) .22s forwards,track 1.4s ease .22s forwards}
@keyframes track{from{letter-spacing:.16em}to{letter-spacing:-.02em}}
.entered .hero__cue{animation:rise 1s ease .9s both}

/* the "Enter" cue word breathes */
.hero__cue span{animation:breathe 3s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:.5}50%{opacity:1}}

/* archway keyline — slow breathing light */
.threshold__key{animation:archpulse 4.5s ease-in-out infinite}
@keyframes archpulse{0%,100%{opacity:.8;filter:drop-shadow(0 0 8px rgba(227,190,110,.6))}
  50%{opacity:1;filter:drop-shadow(0 0 16px rgba(227,190,110,.95)) drop-shadow(0 0 34px rgba(196,154,74,.5))}}

/* scene tag — a brass tick draws in beside it on reveal */
.scene__tag{position:relative;display:inline-block;padding-left:0;transition:padding-left .5s ease .3s}
.scene.is-in .scene__tag{padding-left:34px}
.scene__tag::before{content:"";position:absolute;left:0;top:50%;width:0;height:1px;background:var(--brass);
  transition:width .6s cubic-bezier(.2,.7,.2,1) .3s}
.scene.is-in .scene__tag::before{width:26px}

/* kicker badge — soft pulse to pull the eye to each section number */
.kicker span,.scenes__num{transition:transform .3s ease,box-shadow .3s ease}
.reveal.in .kicker span,.scenes__intro.in .scenes__num{animation:badgepop .6s cubic-bezier(.3,1.4,.5,1) both}
@keyframes badgepop{0%{transform:scale(.7);opacity:0}100%{transform:scale(1);opacity:1}}

/* eyebrow letters fan their tracking on hover of their section */
.eyebrow{transition:letter-spacing .5s ease,color .4s ease}
.cta__inner:hover .eyebrow{letter-spacing:.4em}

/* sound toggle — magnet scale + label slide */
.sound{transition:border-color .3s ease,background .3s ease,transform .25s cubic-bezier(.3,1.3,.5,1),box-shadow .3s ease}
.sound:hover{transform:translateY(-2px) scale(1.04)}
.sound__txt{transition:letter-spacing .3s ease}
.sound:hover .sound__txt{letter-spacing:.34em}

/* timeline rows — marker slides + line grows on reveal */
.timeline li{position:relative}
.timeline li::before{content:"";position:absolute;left:0;top:2.2rem;width:0;height:1px;
  background:linear-gradient(90deg,var(--brass),transparent);transition:width .8s ease}
.legacy.in .timeline li::before{width:46px}
.timeline__yr{display:inline-block;transition:transform .5s cubic-bezier(.2,.7,.2,1),color .4s ease}
.timeline li:hover .timeline__yr{transform:translateX(6px);color:var(--brass-bright)}

/* uses headings nudge on hover */
.uses__row article h3{transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.uses__row article:hover h3{transform:translateX(5px)}

/* links/cite subtle */
.bleed__quote cite{transition:color .4s ease}

@media(prefers-reduced-motion:reduce){
  .fx-grain,.threshold__key,.hero__cue span{animation:none}
  .hero__body .eyebrow,.hero__title,.hero__quote{opacity:1;transform:none;filter:none}
}

/* ---------- a11y ---------- */
:focus-visible{outline:2px solid var(--brass-bright);outline-offset:3px}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  .hero__img,.bleed__img{transform:none}
  .threshold__warp{transform:none}
}