/* ============================================================
   ARC // NEO-MANHATTAN 2087
   ============================================================ */

:root{
  --mag:#FF2E88; --cyan:#00E5FF; --acid:#E8FF3E;
  --ink:#06070D; --haze:#1B2138;
  --paper:#EAE6DA;
  --steel:#3a4568; --dim:#7a83a8;
  --edge:1px solid rgba(0,229,255,.16);
  --f-disp:"Anton",system-ui,sans-serif;
  --f-blk:"Archivo Black",system-ui,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,monospace;
  --gut:clamp(20px,5vw,90px);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  background:var(--ink); color:var(--paper);
  font-family:var(--f-mono); line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-booting{overflow:hidden;height:100vh}

a{color:inherit;text-decoration:none}
::selection{background:var(--mag);color:#fff}
img,canvas{display:block;max-width:100%}

/* ---------- full-screen FX overlays ---------- */
.fx{position:fixed;inset:0;pointer-events:none;z-index:60}
.fx--scan{
  background:repeating-linear-gradient(180deg,
    rgba(0,0,0,0) 0, rgba(0,0,0,0) 2px,
    rgba(0,0,0,.22) 3px, rgba(0,0,0,0) 4px);
  mix-blend-mode:multiply;opacity:.5;
}
.fx--grain{
  opacity:.06;background-size:180px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 6s steps(6) infinite;
}
@keyframes grain{
  0%{transform:translate(0,0)} 20%{transform:translate(-4%,3%)}
  40%{transform:translate(3%,-5%)} 60%{transform:translate(-2%,4%)}
  80%{transform:translate(5%,-2%)} 100%{transform:translate(0,0)}
}
.fx--vig{box-shadow:inset 0 0 240px 60px rgba(0,0,0,.9);}
@media (prefers-reduced-motion:reduce){.fx--grain{animation:none}}

/* ---------- boot screen ---------- */
.boot{
  position:fixed;inset:0;z-index:100;background:var(--ink);
  display:grid;place-items:center;
  transition:opacity .6s ease, visibility .6s;
}
.boot.is-gone{opacity:0;visibility:hidden}
.boot__box{width:min(560px,86vw);padding:0 24px}
.boot__brand{color:var(--cyan);font-size:12px;letter-spacing:.3em;margin-bottom:14px}
.boot__bar{height:6px;background:rgba(255,255,255,.08);overflow:hidden;border:var(--edge)}
.boot__bar span{display:block;height:100%;width:0;background:var(--cyan);box-shadow:0 0 16px var(--cyan)}
.boot__log{
  font-size:11px;color:var(--dim);margin-top:14px;min-height:96px;
  white-space:pre-wrap;line-height:1.7;
}
.boot__log b{color:var(--acid)}
.boot__hint{
  margin-top:10px;font-size:12px;letter-spacing:.25em;color:var(--paper);
  opacity:0;animation:blink 1.1s steps(2) infinite;
}
.boot__hint.on{opacity:1}
@keyframes blink{50%{opacity:.25}}

/* ---------- sound toggle ---------- */
.snd{
  position:fixed;top:14px;left:14px;z-index:72;display:flex;align-items:center;gap:9px;
  background:rgba(6,7,13,.6);border:var(--edge);color:var(--cyan);
  font-family:var(--f-mono);font-size:10px;letter-spacing:.25em;
  padding:8px 12px;cursor:pointer;transition:.2s;
}
.snd:hover{background:rgba(0,229,255,.12)}
.snd__bars{display:flex;align-items:flex-end;gap:2px;height:14px}
.snd__bars i{width:2px;background:var(--cyan);height:4px;animation:eq 1s ease-in-out infinite}
.snd__bars i:nth-child(2){animation-delay:.2s}
.snd__bars i:nth-child(3){animation-delay:.4s}
.snd__bars i:nth-child(4){animation-delay:.6s}
@keyframes eq{0%,100%{height:3px}50%{height:14px}}
.snd.off{color:var(--dim)}
.snd.off .snd__bars i{animation:none;height:3px;background:var(--dim)}
@media (prefers-reduced-motion:reduce){.snd__bars i{animation:none;height:8px}}
@media (max-width:720px){.snd__txt{display:none}}

/* ---------- scroll progress ---------- */
.prog{position:fixed;top:0;left:0;right:0;height:3px;z-index:70;background:rgba(255,255,255,.05)}
.prog span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--mag),var(--acid))}

/* ---------- chapter rail ---------- */
.rail{position:fixed;top:50%;right:clamp(10px,2vw,26px);transform:translateY(-50%);z-index:65}
.rail ol{list-style:none;display:flex;flex-direction:column;gap:14px}
.rail a{display:flex;align-items:center;gap:10px;justify-content:flex-end;opacity:.4;transition:opacity .3s}
.rail a:hover,.rail a.on{opacity:1}
.rail em{font-family:var(--f-mono);font-size:10px;color:var(--cyan);font-style:normal}
.rail span{
  font-size:9px;letter-spacing:.18em;max-width:0;overflow:hidden;white-space:nowrap;
  transition:max-width .35s ease;
}
.rail a:hover span,.rail a.on span{max-width:140px}
.rail a::after{content:"";width:22px;height:2px;background:currentColor}
.rail a.on::after{background:var(--mag);box-shadow:0 0 10px var(--mag)}
@media (max-width:720px){.rail{display:none}}

/* ---------- generic section frame ---------- */
.act{position:relative;padding:clamp(70px,12vh,150px) var(--gut);min-height:100vh}
.head{max-width:1200px;margin:0 auto clamp(30px,6vh,70px)}
.tick{font-family:var(--f-mono);font-size:13px;color:var(--cyan);letter-spacing:.3em}
.head__t{font-family:var(--f-disp);font-size:clamp(38px,8vw,104px);line-height:.92;letter-spacing:.01em;margin:.15em 0}
.head__s{color:var(--dim);font-size:14px;letter-spacing:.12em;text-transform:uppercase}

.warn{color:var(--mag)!important}

/* ============ ACT 01 : COLD OPEN ============ */
.act--open{display:grid;place-items:center;padding-top:0;padding-bottom:0;overflow:hidden}
.skyline{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.open__halftone{
  position:absolute;inset:0;z-index:1;mix-blend-mode:overlay;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1.4px);
  background-size:5px 5px;
}
.open__kf{
  position:absolute;inset:0;z-index:1;opacity:.5;mix-blend-mode:screen;
  transform:scale(1.06);
}
.open__inner{position:relative;z-index:3;text-align:center;padding:0 4vw;max-width:1100px}

.kicker{display:inline-flex;gap:12px;align-items:center;font-size:13px;letter-spacing:.4em;margin-bottom:18px}
.kicker span{color:var(--cyan)}
.kicker b{background:var(--mag);color:#fff;padding:2px 10px;letter-spacing:.2em}

.mis{position:relative;font-family:var(--f-disp);font-size:clamp(90px,26vw,340px);line-height:.8;letter-spacing:.02em}
.mis__l{display:block}
.mis__l--c,.mis__l--m{position:absolute;inset:0;pointer-events:none}
.mis__l--c{color:var(--cyan);mix-blend-mode:screen;transform:translate(6px,-4px)}
.mis__l--m{color:var(--mag);mix-blend-mode:screen;transform:translate(-6px,4px)}
.mis__l--k{color:var(--paper);position:relative}

.tag{font-family:var(--f-blk);font-size:clamp(15px,2.6vw,30px);line-height:1.2;margin:clamp(18px,4vh,40px) auto 0;letter-spacing:.02em}
.tag em{color:var(--acid);font-style:normal}

.open__meta{list-style:none;display:flex;flex-wrap:wrap;gap:10px 26px;justify-content:center;margin-top:clamp(24px,5vh,46px)}
.open__meta li{display:flex;flex-direction:column;gap:2px;border-left:2px solid var(--cyan);padding-left:12px;text-align:left}
.open__meta em{font-style:normal;font-size:10px;color:var(--dim);letter-spacing:.2em}
.open__meta b{font-size:13px;letter-spacing:.06em}

.cue{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:4;display:flex;flex-direction:column;align-items:center;gap:8px;font-size:11px;letter-spacing:.3em;color:var(--dim)}
.cue i{width:1px;height:34px;background:linear-gradient(var(--cyan),transparent);animation:cue 1.6s ease-in-out infinite}
@keyframes cue{0%,100%{transform:scaleY(.4);opacity:.4}50%{transform:scaleY(1);opacity:1}}

/* ============ ACT 02 : STRATA ============ */
.act--strata{background:linear-gradient(180deg,#06070D,#0b0f1f 40%,#06070D)}
.strata{max-width:1200px;margin:0 auto;display:flex;flex-direction:column;gap:clamp(30px,7vh,90px)}
.stratum{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(20px,4vw,56px);align-items:center}
.stratum--flip{direction:rtl}
.stratum--flip>*{direction:ltr}
.stratum__art{
  position:relative;aspect-ratio:4/3;border:var(--edge);overflow:hidden;
  background:#0a0d18;
}
.stratum__alt{position:absolute;top:12px;left:12px;z-index:5;font-size:11px;letter-spacing:.2em;background:rgba(0,0,0,.6);padding:4px 8px;border-left:2px solid var(--acid);color:var(--acid)}
.stratum__no{color:var(--cyan);font-size:12px;letter-spacing:.3em}
.stratum__txt h3{font-family:var(--f-disp);font-size:clamp(40px,7vw,88px);line-height:.9;margin:.1em 0 .2em}
.lead{font-family:var(--f-blk);font-size:clamp(15px,2vw,20px);margin-bottom:.7em}
.stratum__txt p{color:#c3c7d6;font-size:14px;max-width:46ch}
.stratum__txt b{color:var(--paper)}
.facts{list-style:none;display:flex;gap:22px;margin-top:18px;flex-wrap:wrap}
.facts em{font-style:normal;display:block;font-size:10px;color:var(--dim);letter-spacing:.2em}
.facts b{font-size:15px}

.pull{max-width:1000px;margin:clamp(50px,10vh,120px) auto 0;text-align:center;border-top:var(--edge);border-bottom:var(--edge);padding:clamp(30px,6vh,60px) 0}
.pull p{font-family:var(--f-disp);font-size:clamp(28px,6vw,72px);line-height:.95}
.pull em{color:var(--mag);font-style:normal}
.pull cite{display:block;margin-top:14px;color:var(--dim);font-size:12px;letter-spacing:.15em;font-style:normal}

@media (max-width:720px){.stratum,.stratum--flip{grid-template-columns:1fr;direction:ltr}}

/* ============ ACT 03 : PLAY ============ */
.act--play{background:#04050a}
.stage{position:relative;max-width:1200px;margin:0 auto;aspect-ratio:16/9;border:var(--edge);overflow:hidden;background:#05060d;box-shadow:0 0 60px rgba(0,229,255,.08)}
#swing{position:absolute;inset:0;width:100%;height:100%;touch-action:none;cursor:crosshair}
.hud{position:absolute;top:16px;left:16px;display:flex;gap:20px;z-index:5}
.hud__i{background:rgba(0,0,0,.5);border-left:2px solid var(--cyan);padding:6px 12px}
.hud__i em{font-style:normal;display:block;font-size:9px;color:var(--dim);letter-spacing:.2em}
.hud__i b{font-family:var(--f-disp);font-size:26px;line-height:1;color:var(--acid)}
.hud__i i{font-style:normal;font-size:10px;color:var(--dim);margin-left:2px}
.stage__hint{position:absolute;bottom:16px;left:50%;transform:translateX(-50%);z-index:5;font-size:12px;letter-spacing:.08em;color:#cdd2e2;background:rgba(0,0,0,.55);padding:8px 14px;text-align:center;white-space:nowrap;transition:opacity .4s}
.stage__hint.hide{opacity:0}
.stage__hint b{color:var(--acid)}
kbd{font-family:var(--f-mono);background:var(--mag);color:#fff;padding:1px 6px;font-size:11px}
.stage__reset{position:absolute;top:16px;right:16px;z-index:5;background:transparent;border:var(--edge);color:var(--cyan);font-family:var(--f-mono);font-size:11px;letter-spacing:.2em;padding:7px 14px;cursor:pointer;transition:.2s}
.stage__reset:hover{background:var(--cyan);color:var(--ink)}
.note{max-width:1200px;margin:20px auto 0;color:var(--dim);font-size:12px;letter-spacing:.05em}
@media (max-width:720px){.stage{aspect-ratio:4/5}.stage__hint{white-space:normal;width:90%}}

/* ============ ACT 04 : FILES ============ */
.files{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.file{border:var(--edge);background:linear-gradient(180deg,#0a0d18,#070912);position:relative;overflow:hidden;display:flex;flex-direction:column}
.file__art{aspect-ratio:16/9;background:#05060d;position:relative;border-bottom:var(--edge)}
.file__head{padding:16px 18px 8px}
.file__no{font-size:10px;color:var(--cyan);letter-spacing:.3em}
.file__head h3{font-family:var(--f-disp);font-size:clamp(24px,3vw,36px);line-height:1;margin:.15em 0}
.file__sub{color:var(--dim);font-size:11px;letter-spacing:.08em}
.file__body{padding:0 18px;max-height:0;overflow:hidden;opacity:0;transition:max-height .5s ease,opacity .4s ease,padding .4s}
.file.open .file__body{max-height:460px;opacity:1;padding:6px 18px 16px}
.file__body p{font-size:13px;color:#c3c7d6}
.file__body b{color:var(--paper)}
.kv{list-style:none;display:flex;gap:18px;flex-wrap:wrap;margin-top:14px;border-top:var(--edge);padding-top:12px}
.kv em{font-style:normal;display:block;font-size:9px;color:var(--dim);letter-spacing:.2em}
.kv b{font-size:13px}
.file__btn{margin:auto 18px 18px;background:transparent;border:var(--edge);color:var(--cyan);font-family:var(--f-mono);font-size:11px;letter-spacing:.25em;padding:10px;cursor:pointer;display:flex;justify-content:space-between;transition:.2s}
.file__btn:hover{background:var(--cyan);color:var(--ink)}
.file__btn i{font-style:normal;transition:transform .3s}
.file.open .file__btn i{transform:rotate(45deg)}

/* ============ ACT 05 : MANIFESTO ============ */
.act--manifesto{display:grid;place-items:center;text-align:center;background:radial-gradient(ellipse at center,#0d1226,#04050a 70%)}
.manifesto{max-width:1000px}
.mani__t{font-family:var(--f-disp);font-size:clamp(30px,6.5vw,86px);line-height:.98;margin:.4em 0}
.mani__t span,.mani__t b,.mani__t em{display:block;font-style:normal}
.mani__t em{color:var(--acid);font-size:1.3em}
.mani__t b{color:var(--mag)}
.mani__s{font-family:var(--f-blk);font-size:clamp(14px,2vw,20px);color:#c3c7d6;margin-bottom:34px}
.mani__cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{border:var(--edge);padding:14px 28px;font-family:var(--f-mono);font-size:12px;letter-spacing:.25em;transition:.2s}
.btn:hover{background:rgba(0,229,255,.1)}
.btn--pri{background:var(--mag);border-color:var(--mag);color:#fff}
.btn--pri:hover{background:var(--acid);border-color:var(--acid);color:var(--ink)}
.legal{margin-top:46px;color:#4a5170;font-size:10px;letter-spacing:.05em;max-width:60ch;margin-inline:auto;line-height:1.6}

/* ---------- reveal-on-scroll ---------- */
.reveal{opacity:0;transform:translateY(40px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- procedural keyframe canvases fill their .kf host ---------- */
.kf{position:relative}
.kf canvas{position:absolute;inset:0;width:100%;height:100%}

/* real generated art (WebP) becomes primary once loaded; procedural canvas
   underneath acts as fallback if the image 404s. */
.kf.has-img{background-size:cover;background-position:center;background-repeat:no-repeat}
.kf.has-img canvas{opacity:0}
/* comic-print treatment layered over the real art for stylistic unity */
.kf.has-img::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(0,0,0,.5) 1px,transparent 1.3px);
  background-size:4px 4px;mix-blend-mode:multiply;opacity:.35;
  box-shadow:inset 0 0 90px 20px rgba(0,0,0,.7);
}

/* ACT 01 hero: the money shot as full-bleed background */
.open__kf.has-img{opacity:1;mix-blend-mode:normal;z-index:0}
.open__kf.has-img::after{box-shadow:inset 0 0 260px 70px rgba(6,7,13,.92);opacity:.3}