/* ==========================================================
   Riddle Arcade — the 3D hall
   ========================================================== */
html.arx-lock,html.arx-lock body{overflow:hidden;overscroll-behavior:none}
body.arcade-shell main{padding-top:0!important}
.arx{position:relative;z-index:2;height:100vh;height:100svh;min-height:620px;overflow:hidden;background:#050505;isolation:isolate}
#arx-gl{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none;cursor:var(--cur-default)}
body.arx-playing #arx-gl{cursor:crosshair}
.arx-3d .arx-src{position:absolute;left:0;top:0;width:2px;height:2px;opacity:0;pointer-events:none}
.arx-shade{position:absolute;inset:0;pointer-events:none;z-index:1;transition:opacity .8s;
  background:linear-gradient(90deg,rgba(5,5,5,.92) 0%,rgba(5,5,5,.62) 26%,rgba(5,5,5,0) 50%),linear-gradient(0deg,rgba(5,5,5,.9) 0%,rgba(5,5,5,0) 26%),linear-gradient(180deg,rgba(5,5,5,.7) 0%,rgba(5,5,5,0) 18%)}
body.arx-playing .arx-shade{opacity:0}
body:not(.arx-ready) .arx-info,body:not(.arx-ready) .arx-dock{opacity:0}

/* left: title + selected game */
.arx-info{position:absolute;z-index:3;left:max(24px,calc((100vw - 1240px)/2));top:calc(50% + 6px);transform:translateY(-54%);width:min(440px,40vw);
  transition:opacity .5s,transform .7s cubic-bezier(.16,1,.3,1)}
body.arx-playing .arx-info{opacity:0;transform:translate(-40px,-54%);pointer-events:none}
.arx-back{display:inline-flex;gap:10px;font:500 10.5px var(--f-mono);letter-spacing:.18em;text-transform:uppercase;color:var(--text-muted);margin-bottom:28px;transition:color .2s}
.arx-back:hover{color:var(--gold-bright)}
.arx-k{display:flex;align-items:center;gap:10px;font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);margin-bottom:14px}
.arx-dot{width:7px;height:7px;border-radius:50%;background:var(--gold-bright);box-shadow:0 0 0 0 rgba(240,204,132,.6);animation:arxPulse 2.2s infinite}
@keyframes arxPulse{70%{box-shadow:0 0 0 9px rgba(240,204,132,0)}100%{box-shadow:0 0 0 0 rgba(240,204,132,0)}}
.arx-h1{font-stretch:125%;font-weight:800;font-size:clamp(38px,4.2vw,64px);line-height:.92;letter-spacing:-.035em;color:var(--text)}
.arx-h1 em{font-family:var(--f-serif);font-style:italic;font-weight:400;font-stretch:normal;letter-spacing:-.01em;color:var(--gold-bright);font-size:1.08em}
.arx-game{margin-top:30px;padding-top:24px;border-top:1px solid rgba(216,180,120,.22);position:relative}
.arx-game::before{content:"";position:absolute;left:0;top:-1px;width:64px;height:1px;background:var(--gold-bright)}
.arx-game.swap>*{animation:arxIn .7s cubic-bezier(.16,1,.3,1) both}
.arx-game.swap>*:nth-child(2){animation-delay:.05s}.arx-game.swap>*:nth-child(3){animation-delay:.1s}.arx-game.swap>*:nth-child(4){animation-delay:.15s}.arx-game.swap>*:nth-child(5){animation-delay:.2s}.arx-game.swap>*:nth-child(6){animation-delay:.25s}
@keyframes arxIn{from{opacity:0;transform:translateY(14px);filter:blur(4px)}}
.arx-g-tag{display:flex;align-items:center;gap:12px;font:500 10.5px var(--f-mono);letter-spacing:.2em;text-transform:uppercase;color:var(--text-muted)}
.arx-g-tag span{color:var(--gold-bright);border:1px solid rgba(216,180,120,.4);padding:3px 7px;border-radius:2px;letter-spacing:.12em}
.arx-g-name{margin:12px 0 12px;font-stretch:125%;font-weight:800;font-size:clamp(34px,3.6vw,54px);line-height:.95;letter-spacing:-.03em;
  background:linear-gradient(180deg,#FFF6E2 0%,#F0CC84 60%,#B88A4E 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.arx-g-desc{font-size:15px;line-height:1.6;color:rgba(236,236,238,.74);max-width:400px}
.arx-g-keys{list-style:none;display:flex;flex-wrap:wrap;gap:8px 16px;margin:18px 0 0}
.arx-g-keys li{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text-muted)}
.arx kbd{font:500 10.5px var(--f-mono);padding:3px 7px;border:1px solid rgba(216,180,120,.4);border-bottom-width:2px;border-radius:3px;color:var(--gold-bright);background:rgba(216,180,120,.07);white-space:nowrap}
.arx-g-row{display:flex;align-items:center;gap:26px;margin-top:28px;flex-wrap:wrap}
.arx-play{position:relative;display:inline-flex;align-items:center;gap:14px;height:56px;padding:0 28px 0 22px;border-radius:3px;border:0;
  font:600 12px var(--f-mono);letter-spacing:.16em;text-transform:uppercase;color:#0A0A0A;
  background:linear-gradient(180deg,#FFE7B0 0%,var(--gold-bright) 30%,var(--gold) 62%,var(--bronze) 100%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.55),inset 0 -2px 0 rgba(0,0,0,.25),0 14px 40px -12px rgba(216,180,120,.75);transition:transform .2s,box-shadow .3s}
.arx-play::after{content:"";position:absolute;inset:-6px;border:1px solid rgba(240,204,132,.45);border-radius:6px;animation:arxRing 2.4s ease-out infinite;pointer-events:none}
@keyframes arxRing{0%{opacity:.9;transform:scale(.96)}100%{opacity:0;transform:scale(1.12)}}
.arx-play:hover{transform:translateY(-2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.55),inset 0 -2px 0 rgba(0,0,0,.25),0 20px 50px -12px rgba(240,204,132,.9)}
.arx-play:active{transform:translateY(0) scale(.98)}
.arx-play:focus-visible{outline:2px solid var(--gold-bright);outline-offset:4px}
.arx-play-i{width:0;height:0;border-left:11px solid #0A0A0A;border-top:7px solid transparent;border-bottom:7px solid transparent}
.arx-g-best{display:flex;flex-direction:column;gap:4px}
.arx-g-best small{font:500 10px var(--f-mono);letter-spacing:.2em;text-transform:uppercase;color:var(--text-muted)}
.arx-g-best b{font:600 22px var(--f-mono);color:var(--text);font-variant-numeric:tabular-nums}
.arx-g-hint{margin-top:12px;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:rgba(152,152,159,.7)}

/* bottom: game dock */
.arx-dock{position:absolute;z-index:3;left:50%;bottom:22px;transform:translateX(-50%);width:min(1240px,100% - 48px);
  transition:opacity .5s,transform .7s cubic-bezier(.16,1,.3,1)}
body.arx-playing .arx-dock{opacity:0;transform:translate(-50%,130%);pointer-events:none}
.arx-dock-in{display:grid;grid-template-columns:repeat(8,1fr);border:1px solid rgba(216,180,120,.2);border-radius:6px;overflow:hidden;
  background:linear-gradient(180deg,rgba(22,21,20,.62),rgba(10,10,10,.72));backdrop-filter:blur(16px) saturate(1.2);-webkit-backdrop-filter:blur(16px) saturate(1.2);
  box-shadow:0 30px 60px -30px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.04)}
.arx-tile{position:relative;display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto auto;column-gap:10px;align-items:center;text-align:left;
  padding:14px 14px 12px;border:0;border-right:1px solid rgba(56,56,60,.6);background:transparent;color:var(--text);transition:background .3s}
.arx-tile:last-child{border-right:0}
.arx-tile::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,transparent,var(--gold-bright),transparent);transform:scaleX(0);transition:transform .45s cubic-bezier(.16,1,.3,1)}
.arx-tile svg{grid-row:1/3;width:30px;height:30px;fill:none;stroke:var(--gold);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;transition:transform .35s cubic-bezier(.16,1,.3,1),stroke .2s}
.arx-tile svg .f{fill:var(--gold-bright);stroke:none}
.arx-t-n{position:absolute;right:12px;top:10px;font-size:9.5px;letter-spacing:.1em;color:rgba(152,152,159,.6)}
.arx-t-name{font-stretch:112%;font-weight:700;font-size:14px;white-space:nowrap}
.arx-t-tag{grid-column:2;font:400 9.5px var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--text-muted);white-space:nowrap}
.arx-t-best{grid-column:1/-1;margin-top:9px;padding-top:8px;border-top:1px dashed rgba(56,56,60,.8);font-size:10.5px;color:var(--text-muted);font-variant-numeric:tabular-nums}
.arx-t-best::before{content:"★ ";color:rgba(216,180,120,.55)}
.arx-tile:hover{background:rgba(216,180,120,.06)}
.arx-tile:hover svg{transform:translateY(-2px) scale(1.06)}
.arx-tile.on{background:linear-gradient(180deg,rgba(216,180,120,.16),rgba(216,180,120,.02))}
.arx-tile.on::before{transform:scaleX(1)}
.arx-tile.on svg{stroke:var(--gold-bright)}
.arx-tile.on .arx-t-best{color:var(--gold-bright)}
.arx-tile:focus-visible{outline:2px solid var(--gold-bright);outline-offset:-2px}
.arx-more{position:absolute;z-index:3;right:max(24px,calc((100vw - 1240px)/2));bottom:142px;font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--text-muted);transition:color .2s,opacity .4s}
.arx-more:hover{color:var(--gold-bright)}
body.arx-playing .arx-more{opacity:0;pointer-events:none}

/* top: in-game bar */
body.arx-playing #nav{transform:translateY(-110%);opacity:0;pointer-events:none}
#nav{transition:transform .5s cubic-bezier(.16,1,.3,1),opacity .4s,background .3s}
.arx-bar{position:absolute;z-index:4;top:14px;left:50%;transform:translate(-50%,-140%);width:min(1240px,100% - 32px);opacity:0;pointer-events:none;
  display:flex;align-items:center;justify-content:space-between;gap:14px;padding:8px 8px 8px 18px;border:1px solid rgba(216,180,120,.22);border-radius:6px;
  background:rgba(10,10,10,.6);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);transition:transform .6s cubic-bezier(.16,1,.3,1) .15s,opacity .4s .15s}
body.arx-playing .arx-bar{transform:translate(-50%,0);opacity:1;pointer-events:auto}
.ar-hud{display:flex;align-items:center;gap:24px;min-width:0}
.ar-name{font-stretch:122%;font-weight:800;font-size:18px;letter-spacing:-.01em;color:var(--text);white-space:nowrap}
.ar-stat{display:flex;align-items:baseline;gap:8px}
.ar-stat small{font:500 10px var(--f-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--gold)}
.ar-stat b{font:600 17px var(--f-mono);color:var(--text);font-variant-numeric:tabular-nums;display:inline-block;min-width:2ch}
.ar-stat b.bump{animation:arBump .25s ease-out}
@keyframes arBump{40%{transform:scale(1.18);color:var(--gold-bright)}}
.ar-extra{font-size:11px;color:var(--text-muted);letter-spacing:.06em;white-space:nowrap}
.ar-tools{display:flex;gap:6px}
.ar-tool{width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--border);border-radius:4px;background:rgba(20,20,21,.8);color:var(--text-muted);transition:color .2s,border-color .2s,transform .15s}
.ar-tool svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.ar-tool:hover{color:var(--gold-bright);border-color:var(--gold)}
.ar-tool:active{transform:scale(.94)}
.ar-tool:focus-visible{outline:2px solid var(--gold-bright);outline-offset:2px}
.ar-exit{margin-left:6px;border-color:rgba(216,180,120,.4);color:var(--gold-bright)}
#ar-sound .x{display:none}#ar-sound.off .x{display:inline}#ar-sound.off .w{display:none}
#ar-pause[aria-pressed="true"]{color:#0A0A0A;background:var(--gold);border-color:var(--gold)}

/* overlay pinned to the projected screen */
.arx-proj{position:absolute;z-index:4;left:0;top:0;pointer-events:none;opacity:0;transition:opacity .25s;will-change:transform}
.arx-proj.on{opacity:1}
.arx-proj .ar-ov.show{pointer-events:auto}
.ar-keys{position:absolute;z-index:4;left:50%;bottom:16px;transform:translate(-50%,20px);opacity:0;pointer-events:none;display:flex;flex-wrap:wrap;justify-content:center;gap:6px 16px;width:min(1000px,100% - 32px);
  font-size:10.5px;color:var(--text-muted);letter-spacing:.04em;transition:opacity .4s .3s,transform .5s .3s}
.ar-keys span{display:inline-flex;align-items:center;gap:6px}
body.arx-playing .ar-keys{opacity:1;transform:translate(-50%,0)}
/* overlay */
.ar-ov{position:absolute;inset:0;display:none;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:12px;padding:24px;
  background:radial-gradient(80% 70% at 50% 50%,rgba(10,10,10,.72),rgba(5,5,5,.9));backdrop-filter:blur(3px)}
.ar-ov.show{display:flex;animation:arIn .3s cubic-bezier(.16,1,.3,1)}
@keyframes arIn{from{opacity:0;transform:scale(1.02)}}
.ar-ov-tag{font:500 10.5px var(--f-mono);letter-spacing:.22em;text-transform:uppercase;color:var(--gold)}
.ar-ov h3{font-stretch:125%;font-weight:800;font-size:clamp(30px,5vw,54px);letter-spacing:-.03em;line-height:.95;color:var(--text)}
.ar-ov h3.ar-big{color:var(--gold-bright);font-variant-numeric:tabular-nums;text-shadow:0 0 40px rgba(240,204,132,.35)}
.ar-ov-desc{max-width:440px;font-size:14.5px;color:rgba(236,236,238,.78);line-height:1.55}

.ar-ov kbd,.ar-keys kbd{font:500 10.5px var(--f-mono);padding:3px 7px;border:1px solid rgba(216,180,120,.4);border-bottom-width:2px;border-radius:3px;color:var(--gold-bright);background:rgba(216,180,120,.06)}
.ar-go{margin-top:6px;min-width:150px}
.ar-ov-hint{font:400 10.5px var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted)}
.ar-ov-btns{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;align-items:center;margin-top:4px}
.ar-rec{font:600 12px var(--f-mono);letter-spacing:.2em;text-transform:uppercase;color:#0A0A0A;background:var(--gold-bright);padding:5px 12px;border-radius:2px;animation:arRec 1.2s ease-in-out infinite}
@keyframes arRec{50%{box-shadow:0 0 30px rgba(240,204,132,.7)}}
.ar-ov.title{cursor:var(--cur-pointer)}

.ar-keys{display:flex;flex-wrap:wrap;gap:6px 16px;padding:12px 4px 2px;font-size:11px;color:var(--text-muted);letter-spacing:.04em}
.ar-keys span{display:inline-flex;align-items:center;gap:6px}

/* touch pad: only on touch screens */
.ar-pad{display:none;justify-content:space-between;align-items:center;padding:16px 6px 4px;user-select:none;-webkit-user-select:none;touch-action:none}
.ar-pad button{font:600 16px var(--f-mono);color:var(--gold-bright);background:linear-gradient(180deg,#232224,#161617);border:1px solid var(--border);box-shadow:0 3px 0 #0A0A0A;-webkit-tap-highlight-color:transparent;touch-action:none}
.ar-pad button.down{transform:translateY(2px);box-shadow:0 1px 0 #0A0A0A;background:#2A2A2C;border-color:var(--gold)}
.ar-dpad{display:grid;grid-template-columns:repeat(3,52px);grid-template-rows:repeat(3,52px)}
.ar-dpad button{border-radius:6px;font-size:14px}
.ar-dpad .u{grid-area:1/2}.ar-dpad .l{grid-area:2/1}.ar-dpad .r{grid-area:2/3}.ar-dpad .d{grid-area:3/2}
.ar-ab{display:flex;gap:14px;align-items:center}
.ar-ab button{width:64px;height:64px;border-radius:50%;font-size:18px}
.ar-ab .a{width:76px;height:76px;color:#0A0A0A;background:linear-gradient(180deg,var(--gold-bright),var(--bronze));border-color:var(--gold)}
.ar-ab .b{margin-top:30px}
@media (hover:none) and (pointer:coarse){.ar-pad{display:flex}.ar-keys{display:none}}

.ar-pad{position:absolute;z-index:4;left:0;right:0;bottom:0;padding:14px 18px max(18px,env(safe-area-inset-bottom));background:linear-gradient(0deg,rgba(5,5,5,.92),rgba(5,5,5,0))}
body:not(.arx-playing) .ar-pad{display:none!important}
@media (hover:none) and (pointer:coarse){body.arx-playing .ar-keys{display:none}}

/* flat cabinet (no WebGL) */
.arx-flat .arx-src{position:absolute;z-index:2;right:max(24px,calc((100vw - 1240px)/2));top:50%;transform:translateY(-58%);width:min(54vw,760px);height:auto;aspect-ratio:640/420;
  border:1px solid rgba(216,180,120,.35);border-radius:10px;box-shadow:0 0 0 6px #0d0d0e,0 0 0 7px rgba(216,180,120,.2),0 40px 100px -30px rgba(0,0,0,.9),0 0 120px -30px rgba(240,204,132,.35);transition:all .6s cubic-bezier(.16,1,.3,1)}
.arx-flat.arx-playing .arx-src{right:50%;transform:translate(50%,-50%);top:calc(50% + 20px);width:min(94vw,calc((100svh - 150px) * 640 / 420))}
.arx-flat #arx-gl{display:none}
.arx-flat .arx{background:radial-gradient(80% 70% at 70% 40%,rgba(216,180,120,.12),transparent 60%),#050505}

/* how it's built */
.ar-how{position:relative;z-index:2}

.ar-facts{display:grid;grid-template-columns:repeat(4,1fr);list-style:none;border:1px solid var(--border);border-radius:4px;background:rgba(16,16,16,.75);backdrop-filter:blur(10px)}
.ar-facts li{padding:16px 20px;border-right:1px solid var(--border);display:flex;align-items:baseline;gap:12px}
.ar-facts li:last-child{border-right:0}
.ar-facts b{font-stretch:120%;font-weight:800;font-size:30px;color:var(--gold-bright);letter-spacing:-.02em;line-height:1}
.ar-facts small{font-size:13px;margin-left:2px;color:var(--gold)}
.ar-facts span{font:400 11px var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted)}

/* how it works */
.ar-how .sec-head{margin-bottom:34px}
.ar-how code{font:500 .85em var(--f-mono);color:var(--gold-bright);background:rgba(216,180,120,.08);padding:1px 5px;border-radius:2px}
.ar-how-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}
.ar-how-grid .card{padding:24px}
.ar-how-n{display:block;font-stretch:125%;font-weight:800;font-size:40px;line-height:1;color:transparent;-webkit-text-stroke:1px var(--gold);margin-bottom:16px}
.ar-how-grid h3{font-stretch:115%;font-weight:800;font-size:18px;margin-bottom:8px}
.ar-how-grid p{font-size:14px;color:rgba(236,236,238,.74);line-height:1.6}

@media (max-width:1100px){.ar-how-grid{grid-template-columns:1fr 1fr}}
@media (max-width:1000px){

  .ar-lib{position:static;order:2;padding:10px}

  .ar-facts{grid-template-columns:1fr 1fr}.ar-facts li:nth-child(2){border-right:0}.ar-facts li:nth-child(-n+2){border-bottom:1px solid var(--border)}
}
@media (max-width:640px){

  .ar-hud{gap:12px}.ar-name{font-size:16px;width:100%}
  .ar-ov{gap:8px;padding:12px}.ar-ov-desc{font-size:12.5px}.ar-ov h3{font-size:28px}
  .ar-how-grid{grid-template-columns:1fr}
  .ar-facts li{padding:12px 14px;flex-direction:column;gap:4px}

}
@media (prefers-reduced-motion:reduce){.ar-ov.show,.ar-stat b.bump,.ar-rec{animation:none}}

.ar-facts-how{margin-bottom:14px}

@media (max-width:1100px){.ar-how-grid{grid-template-columns:1fr 1fr}.arx-tile{padding:12px 10px}.arx-tile svg{width:24px;height:24px}.arx-t-name{font-size:13px}}
@media (max-width:900px),(max-aspect-ratio:9/10){
  .arx{min-height:560px}
  .arx-shade{background:linear-gradient(0deg,rgba(5,5,5,.97) 0%,rgba(5,5,5,.86) 42%,rgba(5,5,5,0) 66%),linear-gradient(180deg,rgba(5,5,5,.6) 0%,rgba(5,5,5,0) 16%)}
  .arx-info{left:16px;right:16px;width:auto;top:auto;bottom:122px;transform:none}
  body.arx-playing .arx-info{transform:translateY(30px)}
  .arx-back,.arx-h1{display:none}
  .arx-k{margin-bottom:6px}
  .arx-game{margin-top:8px;padding-top:14px}
  .arx-g-name{font-size:34px;margin:8px 0}
  .arx-g-desc{font-size:13.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .arx-g-keys{display:none}
  .arx-g-row{margin-top:16px;gap:18px}
  .arx-play{height:50px;padding:0 22px 0 18px}
  .arx-g-hint{display:none}
  .arx-dock{bottom:14px;width:calc(100% - 32px)}
  .arx-dock-in{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
  .arx-dock-in::-webkit-scrollbar{display:none}
  .arx-tile{flex:0 0 132px;scroll-snap-align:start}
  .arx-more{display:none}
  .arx-flat .arx-src{right:16px;left:16px;width:auto;top:96px;transform:none}
  .arx-flat.arx-playing .arx-src{left:50%;right:auto;top:76px;transform:translateX(-50%);width:calc(100% - 16px)}
}
@media (max-width:640px){
  .arx-bar{padding:6px 6px 6px 12px;gap:8px;top:10px}
  .ar-hud{gap:10px}.ar-name{font-size:14px}
  .ar-stat{gap:5px}.ar-stat small{font-size:9px;letter-spacing:.1em}.ar-stat b{font-size:14px}
  .ar-extra{display:none}
  .ar-tools{gap:4px}.ar-tool{width:32px;height:32px}.ar-tool svg{width:15px;height:15px}.ar-exit{margin-left:2px}
  #ar-full{display:none}
  .ar-how-grid{grid-template-columns:1fr}
  .ar-facts{grid-template-columns:1fr 1fr}.ar-facts li{padding:12px 14px;flex-direction:column;gap:4px}
  .ar-facts li:nth-child(2){border-right:0}.ar-facts li:nth-child(-n+2){border-bottom:1px solid var(--border)}
}
@media (prefers-reduced-motion:reduce){.arx-game.swap>*,.arx-dot,.arx-play::after,.ar-stat b.bump,.ar-rec{animation:none}}

/* ==========================================================
   Game Development — three worlds
   ========================================================== */
body.gamedev-shell main{padding-top:0!important}
body.gd-3d #stars{display:none}
#gd-gl{position:fixed;inset:0;width:100vw;height:100vh;z-index:0;display:block;pointer-events:none;opacity:var(--gd-fade,1);transition:opacity .2s linear}
body.gd-flat #gd-gl{display:none}
.gdx-vignette{position:fixed;inset:0;z-index:1;pointer-events:none;background:radial-gradient(120% 90% at 50% 45%,transparent 55%,rgba(5,5,5,.75) 100%)}
.gamedev-page{position:relative;z-index:2}
/* hero */
.gdx-hero{position:relative;min-height:100vh;min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:120px 0 40px}
.gdx-hero::before{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(5,5,5,.88) 0%,rgba(5,5,5,.5) 30%,rgba(5,5,5,0) 55%)}
.gdx-hero-in{position:relative}
.gdx-back{margin:0 0 30px!important}
.gdx-h1{font-stretch:125%;font-weight:800;font-size:clamp(48px,7vw,112px);line-height:.88;letter-spacing:-.04em;max-width:760px}
.gdx-h1 em{font-family:var(--f-serif);font-style:italic;font-weight:400;font-stretch:normal;letter-spacing:-.01em;color:var(--gold-bright)}
.gdx-lede{margin-top:26px;max-width:520px;font-size:16.5px;line-height:1.65;color:rgba(236,236,238,.78)}
.gdx-lede b{color:var(--text);font-weight:600}
.gdx-ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.gdx-stats-wrap{position:relative;margin-top:auto;padding-top:60px}
.gdx-stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid rgba(216,180,120,.2);border-radius:6px;background:rgba(10,10,10,.55);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.gdx-stats>div{padding:18px 22px;border-right:1px solid rgba(56,56,60,.7);display:flex;align-items:center;gap:16px}
.gdx-stats>div:last-child{border-right:0}
.gdx-stats b{font-stretch:125%;font-weight:800;font-size:clamp(30px,3vw,42px);color:var(--gold-bright);line-height:1;letter-spacing:-.02em}
.gdx-stats>div>span{display:flex;flex-direction:column;font-size:13px;color:var(--text);line-height:1.3}
.gdx-stats em{font:400 10px var(--f-mono);font-style:normal;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);margin-top:3px}
.gdx-scroll{margin-top:18px;font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--text-muted);text-align:center}
.gdx-scroll span{display:inline-block;animation:gdxBob 1.8s ease-in-out infinite}
@keyframes gdxBob{50%{transform:translateY(4px)}}
.gdx-pins{position:fixed;inset:0;pointer-events:none;z-index:2;opacity:var(--gd-pins,1)}
body.gd-flat .gdx-pins{display:none}
.gdx-pin{position:absolute;left:0;top:0;display:flex;align-items:center;gap:8px;font:600 10.5px var(--f-mono);letter-spacing:.2em;text-transform:uppercase;color:var(--text);white-space:nowrap;
  margin:-34px 0 0 -40px;padding:6px 10px 6px 6px;border:1px solid rgba(216,180,120,.35);border-radius:3px;background:rgba(10,10,10,.6);backdrop-filter:blur(8px);will-change:transform}
.gdx-pin::after{content:"";position:absolute;left:50%;top:100%;width:1px;height:26px;background:linear-gradient(rgba(240,204,132,.7),transparent)}
.gdx-pin b{color:#0A0A0A;background:var(--gold);padding:2px 5px;border-radius:2px;font-weight:600}
/* chapters */
.gdx-ch{position:relative;min-height:130vh;display:flex;align-items:center;padding:12vh 0}
.gdx-ch[data-side="right"] .wrap{display:flex;justify-content:flex-end}
.gdx-card{width:min(540px,100%);padding:clamp(26px,3vw,42px);border:1px solid rgba(216,180,120,.22);border-radius:8px;
  background:linear-gradient(160deg,rgba(24,22,20,.78),rgba(10,10,10,.8));backdrop-filter:blur(18px) saturate(1.15);-webkit-backdrop-filter:blur(18px) saturate(1.15);
  box-shadow:0 40px 90px -40px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.05);display:flex;flex-direction:column;gap:18px;position:relative;overflow:hidden}
.gdx-card::before{content:"";position:absolute;left:0;top:0;width:90px;height:2px;background:var(--gold-bright)}
.gdx-card-h{display:flex;align-items:flex-end;gap:20px}
.gdx-num{flex:none;font-stretch:125%;font-weight:800;font-size:clamp(56px,6vw,84px);line-height:.78;letter-spacing:-.05em;color:transparent;-webkit-text-stroke:1.2px var(--gold)}
.gdx-sub{font-size:10px;line-height:1.5;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin-bottom:8px}
.gdx-card h2{font-stretch:118%;font-weight:800;font-size:clamp(34px,3.7vw,54px);line-height:.9;letter-spacing:-.035em}
.gdx-p{font-size:15.5px;line-height:1.65;color:rgba(236,236,238,.8)}
.gdx-p b{color:var(--text)}
.gdx-card .ticks li{font-size:14px}
/* after the worlds */
.gdx-craft,.gd-ship-sec,.gdx-arcade{position:relative}
.gdx-craft-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid rgba(216,180,120,.25)}
.gdx-skill{padding:34px 30px 30px 0;display:flex;flex-direction:column;gap:12px;border-right:1px solid rgba(56,56,60,.7)}
.gdx-skill+.gdx-skill{padding-left:30px}
.gdx-skill:last-child{border-right:0}
.gdx-skill-n{font:500 11px var(--f-mono);letter-spacing:.2em;color:var(--gold)}
.gdx-skill h3{font-stretch:118%;font-weight:800;font-size:24px;letter-spacing:-.015em}
.gdx-skill p{font-size:14.5px;line-height:1.65;color:rgba(236,236,238,.74)}
.gdx-skill .stack-chips{margin-top:auto;padding-top:8px}
.gdx-arc{display:grid;grid-template-columns:1.25fr 1fr;overflow:hidden}
.gdx-arc-img{position:relative;display:block;overflow:hidden;min-height:380px;background:#050505;border-right:1px solid var(--border)}
.gdx-arc-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.2s cubic-bezier(.16,1,.3,1)}
.gdx-arc-img:hover img{transform:scale(1.04)}
.gdx-arc-img::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 60%,rgba(20,20,20,.9))}
.gdx-arc-txt{padding:clamp(26px,3vw,44px);display:flex;flex-direction:column;justify-content:center;gap:16px}
.gdx-arc-txt h3{font-stretch:125%;font-weight:800;font-size:clamp(32px,3.6vw,50px);line-height:.92;letter-spacing:-.03em}
.gdx-arc-txt h3 em{font-family:var(--f-serif);font-style:italic;font-weight:400;font-stretch:normal;color:var(--gold-bright)}
.gdx-arc-txt p{font-size:15px;line-height:1.6;color:rgba(236,236,238,.78)}
.gdx-arc-txt .btn-gold{align-self:flex-start}
.gdx-arc .gd-arcade-grid{grid-column:1/-1;border-left:0;border-top:1px solid var(--border)}
.gdx-arc .gd-arcade-grid{grid-template-columns:repeat(8,1fr)}
.gdx-arc .gd-arcade-grid a{border-bottom:0!important;border-right:1px solid var(--border)!important}
.gdx-arc .gd-arcade-grid a:last-child{border-right:0!important}
.gd-mk{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--border);border-radius:4px}
.gd-mk div{padding:12px 14px;border-right:1px solid var(--border)}
.gd-mk div:last-child{border-right:0}
.gd-mk b{display:block;font-stretch:118%;font-weight:800;font-size:22px;color:var(--gold-bright);line-height:1.1}
.gd-mk span{font:400 10px var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted)}
.gd-ship{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gd-ship a{padding:20px;display:flex;flex-direction:column;gap:8px;transition:border-color .25s,transform .25s}
.gd-ship a:hover{border-color:rgba(216,180,120,.5);transform:translateY(-3px)}
.gd-ship h4{font-stretch:112%;font-weight:800;font-size:17px}
.gd-ship p{font-size:13.5px;color:rgba(236,236,238,.72);line-height:1.55}
.gd-ship .gh{margin-top:auto;font:500 11px var(--f-mono);color:var(--gold)}
.gd-ship-more{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-top:16px;padding:16px 20px;font-size:14.5px;color:var(--text-muted)}
.gd-arcade-grid{display:grid;grid-template-columns:repeat(4,1fr);border-left:1px solid var(--border)}
.gd-arcade-grid a{display:flex;flex-direction:column;align-items:flex-start;gap:10px;padding:20px 18px;border-right:1px solid var(--border);border-bottom:1px solid var(--border);transition:background .25s}
.gd-arcade-grid a:nth-child(4n){border-right:0}.gd-arcade-grid a:nth-child(n+5){border-bottom:0}
.gd-arcade-grid a:hover{background:rgba(216,180,120,.07)}
.gd-arcade-grid svg{width:38px;height:38px;fill:none;stroke:var(--gold);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .3s}
.gd-arcade-grid svg .f{fill:var(--gold-bright);stroke:none}
.gd-arcade-grid a:hover svg{transform:translateY(-3px) scale(1.06)}
.gd-arcade-grid b{font-stretch:110%;font-weight:700;font-size:15px}
.gd-arcade-grid small{font:400 10px var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted)}
.gd-arcade-grid .play{margin-top:auto;font:500 10.5px var(--f-mono);letter-spacing:.14em;color:var(--gold);opacity:0;transform:translateX(-4px);transition:all .25s}
.gd-arcade-grid a:hover .play,.gd-arcade-grid a:focus-visible .play{opacity:1;transform:none}
@media (max-width:1100px){.gd-ship{grid-template-columns:1fr 1fr}.gdx-arc .gd-arcade-grid{grid-template-columns:repeat(4,1fr)}.gdx-arc .gd-arcade-grid a:nth-child(4){border-right:0!important}.gdx-arc .gd-arcade-grid a:nth-child(-n+4){border-bottom:1px solid var(--border)!important}}
@media (max-width:1000px){
  .gdx-hero::before{background:linear-gradient(0deg,rgba(5,5,5,.92) 0%,rgba(5,5,5,.6) 55%,rgba(5,5,5,.2) 100%)}
  .gdx-hero{justify-content:flex-end;padding-top:46vh}
  .gdx-stats{grid-template-columns:1fr 1fr}.gdx-stats>div:nth-child(2){border-right:0}.gdx-stats>div:nth-child(-n+2){border-bottom:1px solid rgba(56,56,60,.7)}
  .gdx-ch{min-height:110vh;align-items:flex-end;padding:40vh 0 8vh}
  .gdx-ch[data-side="right"] .wrap{display:block}
  .gdx-craft-grid{grid-template-columns:1fr}.gdx-skill,.gdx-skill+.gdx-skill{padding:26px 0;border-right:0;border-bottom:1px solid rgba(56,56,60,.7)}
  .gdx-arc{grid-template-columns:1fr}.gdx-arc-img{min-height:260px;border-right:0;border-bottom:1px solid var(--border)}.gdx-arc-img::after{background:linear-gradient(0deg,rgba(20,20,20,.7),transparent 50%)}
}
@media (max-width:640px){.gd-ship{grid-template-columns:1fr}.gdx-stats>div{flex-direction:column;align-items:flex-start;gap:6px;padding:14px}.gdx-card-h{gap:14px}.gdx-pin{font-size:9px;padding:4px 7px 4px 4px}.gd-mk b{font-size:18px}
  .gdx-arc .gd-arcade-grid{grid-template-columns:1fr 1fr}.gdx-arc .gd-arcade-grid a:nth-child(2n){border-right:0!important}.gdx-arc .gd-arcade-grid a:nth-child(-n+6){border-bottom:1px solid var(--border)!important}.gdx-arc .gd-arcade-grid a:nth-child(4){border-right:0!important}}
@media (prefers-reduced-motion:reduce){.gdx-scroll span{animation:none}}