/* Tynforge home hero. Adapted from the ThreeUI "Skyfield" hero: selectors scoped
   to #sky, stage pinned inside the page instead of the window. */
#sky{
  --ink:#0B1B2E;
  --ink-2:#08131F;
  --paper:#F5F4F2;
  --lime:#C6F19D;
  --lime-hot:#A8E063;
  --pad: clamp(18px, 2.2vw, 34px);
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
#sky *{margin:0;padding:0;box-sizing:border-box}
#sky{background:var(--ink)}
#sky{
  background:var(--ink); color:var(--paper);
  position:relative;
  font-family:var(--sans);
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
  overscroll-behavior-y:none;
}
#sky canvas#gl{position:absolute;inset:0;width:100vw;height:100vh;display:block;z-index:0}
/* The type carries no shadow, so the ground under it is darkened instead:
   a corner wash where the headline sits, plus top and bottom bands. */
#sky #scrim{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(128% 96% at -4% 2%, rgba(8,24,44,.60) 0%, rgba(8,24,44,.34) 32%, rgba(8,24,44,.08) 58%, rgba(8,24,44,0) 74%),
    linear-gradient(180deg, rgba(8,24,44,.46) 0%, rgba(8,24,44,.20) 22%, rgba(8,24,44,0) 48%),
    linear-gradient(0deg,   rgba(8,24,44,.60) 0%, rgba(8,24,44,.26) 15%, rgba(8,24,44,0) 38%);
  transition:opacity .6s ease}
#sky #ui{position:absolute;inset:0;z-index:2;pointer-events:none;overflow:hidden}
#sky #ui a,#sky #ui button{pointer-events:auto}

/* ---------- top bar ---------- */
#sky header{
  position:absolute;top:0;left:0;right:0;
  display:flex;align-items:center;gap:24px;
  padding:calc(var(--pad) * .82) var(--pad);
  z-index:6;
}
#sky .mark{display:flex;align-items:center;gap:9px;font-size:17px;font-weight:500;letter-spacing:-.02em}
#sky .mark svg{display:block}
#sky nav{display:flex;gap:26px;margin-inline:auto}
#sky nav span{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.07em;text-transform:uppercase;
  opacity:.86;display:flex;align-items:center;gap:5px;white-space:nowrap;
}
#sky nav span i{font-style:normal;opacity:.55;font-size:9px;transform:translateY(1px)}
#sky .topcta{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.07em;text-transform:uppercase;
  display:flex;align-items:center;gap:9px;color:var(--paper);text-decoration:none;white-space:nowrap;
}
#sky .mode{
  position:relative;flex:none;width:56px;height:28px;border-radius:999px;
  border:1px solid rgba(245,244,242,.34);background:rgba(8,24,44,.24);
  display:flex;align-items:center;justify-content:space-between;padding:0 7px;
  cursor:pointer;backdrop-filter:blur(4px);
  transition:border-color .35s ease, background .35s ease;
}
#sky .mode:hover{border-color:var(--lime)}
#sky .mode:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
#sky .mode .knob{
  position:absolute;left:3px;top:3px;width:20px;height:20px;border-radius:50%;
  background:var(--lime);
  transition:transform .55s cubic-bezier(.68,0,.18,1);
}
body.night #sky .mode .knob{transform:translateX(28px)}
#sky .mode .ic{width:11px;height:11px;position:relative;z-index:1;display:block;
  color:rgba(245,244,242,.62);transition:color .4s ease}
#sky .mode .sun{color:var(--ink)}
body.night #sky .mode .sun{color:rgba(245,244,242,.62)}
body.night #sky .mode .moon{color:var(--ink)}
body.night #sky #scrim{opacity:.32}
#sky .chevbox{
  font-style:normal;width:19px;height:19px;border-radius:3px;background:var(--lime);color:var(--ink);
  display:grid;place-items:center;font-size:9px;line-height:1;
}

/* ---------- hero ---------- */
#sky #hero{position:absolute;inset:0;padding:var(--pad);z-index:4}
#sky #herocopy{position:absolute;left:var(--pad);top:clamp(84px,15.5vh,150px);max-width:min(66vw,900px)}
#sky h1{
  font-size:clamp(30px,5.05vw,74px);
  font-weight:500;line-height:.95;letter-spacing:-.05em;
  color:var(--paper);white-space:nowrap;
}
#sky h1 .ln{display:block;overflow:hidden;padding-bottom:.09em;margin-bottom:-.09em}
#sky h1 .ln b{display:block;font-weight:500;transform:translateY(105%);will-change:transform}
#sky .pill{
  margin-top:clamp(20px,3.2vh,34px);
  display:inline-flex;align-items:center;gap:11px;
  padding:10px 12px 10px 16px;border:1px solid rgba(245,244,242,.34);border-radius:6px;
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--paper);text-decoration:none;backdrop-filter:blur(3px);
  transition:border-color .35s, background .35s;
}
#sky .pill:hover{border-color:var(--lime);background:rgba(198,241,157,.08)}
#sky .lede{
  position:absolute;left:var(--pad);bottom:calc(var(--pad) + 6px);
  max-width:min(46ch,42vw);font-size:clamp(13px,1.06vw,15.5px);line-height:1.42;
  color:rgba(245,244,242,.94);text-shadow:0 1px 12px rgba(6,20,38,.7);
}
#sky .scrollhint{
  position:absolute;right:var(--pad);bottom:calc(var(--pad) + 6px);
  font-size:13.5px;letter-spacing:-.02em;color:rgba(245,244,242,.92);
  text-shadow:0 1px 12px rgba(6,20,38,.7);
  display:flex;align-items:center;gap:9px;
}
#sky .scrollhint .dot{width:5px;height:5px;border-radius:50%;background:var(--lime);animation:sky-bob 1.9s ease-in-out infinite}
@keyframes sky-bob{0%,100%{transform:translateY(-3px);opacity:.45}50%{transform:translateY(3px);opacity:1}}
@media (prefers-reduced-motion: reduce){
  #sky .scrollhint .dot{animation:none;opacity:.9}
  #sky #loader .hex{animation:none}
}

/* ---------- scan HUD ---------- */
#sky #scan{position:absolute;inset:0;z-index:3}
#sky #scanbox{position:absolute;transform:translate(-50%,-50%);will-change:transform}
#sky #hudline{position:absolute;height:1px;background:rgba(245,244,242,.42);transform-origin:0 50%}
#sky #scanbox .frame{position:absolute;inset:0;border:1px solid rgba(245,244,242,.38)}
#sky #scanbox .c{position:absolute;width:10px;height:10px;border:1.6px solid var(--lime)}
#sky #scanbox .c1{left:-1px;top:-1px;border-right:0;border-bottom:0}
#sky #scanbox .c2{right:-1px;top:-1px;border-left:0;border-bottom:0}
#sky #scanbox .c3{left:-1px;bottom:-1px;border-right:0;border-top:0}
#sky #scanbox .c4{right:-1px;bottom:-1px;border-left:0;border-top:0}
#sky #scanbox .sweep{position:absolute;left:1px;right:1px;height:1px;
  background:linear-gradient(90deg,transparent,var(--lime) 22%,var(--lime) 78%,transparent);opacity:.75;
  box-shadow:0 0 10px rgba(198,241,157,.55)}
#sky .chip{
  position:absolute;padding:3px 7px;border-radius:3px;background:var(--lime);color:var(--ink);
  font-family:var(--mono);font-size:10.5px;letter-spacing:.02em;white-space:nowrap;font-weight:500;
}
#sky #readout{
  position:absolute;font-family:var(--mono);font-size:10.5px;line-height:1.7;
  color:var(--paper);text-shadow:0 1px 8px rgba(4,10,4,.9);white-space:nowrap;
}
#sky .chip{box-shadow:0 2px 10px rgba(4,10,4,.55)}
#sky #readout .g{color:var(--lime)}
#sky #readout .d{opacity:.55}

/* ---------- mid captions ---------- */
#sky .cap{
  --capY:-50%;
  position:absolute;z-index:4;max-width:min(30ch,32vw);
  left:var(--pad);top:50%;transform:translateY(var(--capY));
  opacity:0;
}
/* clouds drift behind these, so each caption carries its own soft ground */
#sky .cap::before{content:'';position:absolute;inset:-26px -56px -30px -34px;z-index:-1;pointer-events:none;
  background:radial-gradient(116% 104% at 10% 50%, rgba(8,24,44,.56) 0%, rgba(8,24,44,.26) 44%, rgba(8,24,44,0) 78%)}
#sky .cap.right::before{background:radial-gradient(116% 104% at 90% 50%, rgba(8,24,44,.56) 0%, rgba(8,24,44,.26) 44%, rgba(8,24,44,0) 78%);
  inset:-26px -34px -30px -56px}
#sky .cap .idx{font-family:var(--mono);font-size:11px;letter-spacing:.09em;color:var(--lime);margin-bottom:14px}
#sky .cap h3{font-size:clamp(19px,1.72vw,26px);font-weight:500;letter-spacing:-.03em;line-height:1.14;margin-bottom:10px}
#sky .cap p{font-size:13.5px;line-height:1.5;color:rgba(245,244,242,.86)}
#sky .cap.right{left:auto;right:var(--pad);text-align:right}
#sky .cap .rule{height:1px;background:linear-gradient(90deg,var(--lime),rgba(198,241,157,0));margin-bottom:16px}
#sky .cap.right .rule{background:linear-gradient(270deg,var(--lime),rgba(198,241,157,0))}

/* ---------- outro ---------- */
#sky #outro{
  position:absolute;inset:0;z-index:5;display:grid;place-items:center;
  text-align:center;padding:var(--pad);opacity:0;
}
#sky #outro .kicker{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;color:var(--lime);margin-bottom:22px}
#sky #outro p{color:rgba(245,244,242,.78)}
#sky #outro h2{font-size:clamp(28px,4.3vw,62px);font-weight:500;letter-spacing:-.045em;line-height:1.0;max-width:15ch}
#sky #outro p{margin-top:22px;font-size:14.5px;line-height:1.5;color:rgba(245,244,242,.66);max-width:46ch}
#sky #outro .pill{position:static;display:inline-flex;margin-top:34px}

/* ---------- progress rail ---------- */
#sky #rail{position:absolute;right:calc(var(--pad) * .55);top:50%;transform:translateY(-50%);
  width:2px;height:118px;background:rgba(245,244,242,.14);border-radius:2px;z-index:6}
#sky #railfill{position:absolute;left:0;top:0;width:100%;background:var(--lime);border-radius:2px;height:0%}

/* ---------- loader ---------- */
#sky #loader{position:absolute;inset:0;z-index:20;background:#07121E;display:grid;place-items:center;
  transition:opacity .9s cubic-bezier(.4,0,.2,1)}
#sky #loader .hex{width:15px;height:17px;background:var(--paper);
  clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);
  animation:sky-spin 1.15s cubic-bezier(.65,0,.35,1) infinite}
@keyframes sky-spin{0%{transform:rotate(0) scale(1)}50%{transform:rotate(180deg) scale(.72)}100%{transform:rotate(360deg) scale(1)}}
#sky #loader .pct{position:absolute;bottom:calc(var(--pad) + 4px);right:var(--pad);
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:rgba(245,244,242,.5)}
#sky #loader .lbl{position:absolute;bottom:calc(var(--pad) + 4px);left:var(--pad);
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:rgba(245,244,242,.5)}
body.ready #sky #loader{opacity:0;pointer-events:none}
body.nogl #sky #hero{position:relative;min-height:100vh}
body.nogl #sky #ui{position:relative;overflow:visible}

@media (max-width:820px){
  #sky nav,#sky .topcta{display:none}
  #sky header{justify-content:space-between}
  #sky .mode{margin-left:auto}
  #sky .lede{max-width:min(46ch,calc(100% - var(--pad)*2));width:auto;font-size:13px}
  #sky .scrollhint{display:none}
  #sky #rail{display:none}
  /* a centred caption fights the rock on a tall screen — park it at the foot */
  #sky .cap{--capY:0%;max-width:none;width:calc(100% - var(--pad)*2);
       top:auto;bottom:calc(var(--pad) + 4px)}
  #sky .cap.right{text-align:left;right:auto;left:var(--pad)}
  #sky .cap h3{font-size:clamp(17px,4.6vw,22px)}
  #sky .cap p{font-size:12.5px}
  /* the three authored line breaks only fit on a wide measure */
  #sky #herocopy{max-width:none;width:calc(100% - var(--pad)*2);top:clamp(76px,13vh,120px)}
  #sky h1{white-space:normal;font-size:clamp(27px,8.4vw,46px);letter-spacing:-.042em}
  #sky #readout{display:none}
  #sky #hudline{display:none}
  #sky .chip{font-size:9.5px;padding:3px 6px}
  #sky #outro h2{font-size:clamp(26px,7.6vw,44px)}
  #sky #outro p{font-size:13px}
}
@media (max-width:820px) and (orientation:landscape){
  #sky #herocopy{top:clamp(56px,10vh,96px)}
  #sky h1{font-size:clamp(22px,4.6vw,34px)}
}

/* ---------- Tynforge: pinned stage inside the page ---------- */
#sky .stage{position:sticky;top:0;height:100vh;overflow:hidden}
#sky a{color:inherit}
#sky h1,#sky h2,#sky h3{color:var(--paper)}
#sky .mark{color:var(--paper);text-decoration:none}
#sky nav a{text-decoration:none;font-family:var(--mono);font-size:11.5px;letter-spacing:.07em;text-transform:uppercase;opacity:.86;white-space:nowrap;transition:opacity .2s, color .2s}
#sky nav a:hover{opacity:1;color:var(--lime)}
#sky .skip-intro{position:absolute;left:50%;bottom:calc(var(--pad) + 6px);transform:translateX(-50%);
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:rgba(245,244,242,.78);
  text-decoration:none;padding:8px 12px;border-radius:999px;border:1px solid rgba(245,244,242,.22);backdrop-filter:blur(3px)}
#sky .skip-intro:hover{color:var(--paper);border-color:var(--lime)}
#sky a:focus-visible,#sky button:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
#sky.nogl,body.nogl #sky{height:auto!important;background:radial-gradient(120% 90% at 70% 40%,#1d3b5c 0%,#0B1B2E 60%)}
body.nogl #sky .stage{position:relative;height:auto;min-height:100vh}
body.nogl #sky #ui{position:relative;min-height:100vh}
body.nogl #sky #cap1,body.nogl #sky #cap2,body.nogl #sky #outro,body.nogl #sky .skip-intro,body.nogl #sky .scrollhint{display:none}
@media (max-width:820px){
  #sky .topcta{display:flex}
  #sky .mode{margin-left:auto}
  #sky .skip-intro{left:auto;right:var(--pad);transform:none;bottom:auto;top:calc(var(--pad) * .82 + 44px)}
}