:root{
  --bg:#0a0e18;
  --ink:#eef1f8;
  --muted:#8b93a7;
  --faint:#4d5670;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --isa:#6aa6ff;
  --pactum:#2fe3a6;
  --gold:#d4a44b;
  --serif:'Source Serif 4',Georgia,serif;
  --mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--serif);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  min-height:100%;display:flex;flex-direction:column;position:relative;overflow-x:hidden;
}

/* Atmosphere: top glow + vignette + fine grain */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(820px 460px at 50% -6%, rgba(54,74,140,.38) 0%, rgba(54,74,140,0) 60%),
    radial-gradient(1200px 700px at 50% 120%, rgba(0,0,0,.55) 0%, rgba(0,0,0,0) 60%);
}
.grain{
  position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

main{
  position:relative;z-index:2;flex:1;width:100%;max-width:880px;
  margin:0 auto;padding:clamp(40px,8vh,88px) 28px 28px;
  display:flex;flex-direction:column;
}

/* Masthead */
.masthead{text-align:center;margin-bottom:clamp(34px,7vh,64px);opacity:0;animation:rise .9s .05s cubic-bezier(.2,.7,.2,1) forwards;}
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.34em;
  text-transform:uppercase;color:var(--muted);
}
.kicker::before,.kicker::after{content:"";width:26px;height:1px;background:linear-gradient(90deg,transparent,var(--line-2));}
.kicker::after{transform:scaleX(-1);}
.lede{
  margin:18px 0 0;font-weight:400;font-style:italic;
  font-size:clamp(26px,4.6vw,40px);line-height:1.12;letter-spacing:-.01em;color:var(--ink);
}
.lede b{font-style:normal;font-weight:600;}

/* Portal */
.portal{
  position:relative;display:grid;grid-template-columns:1fr 1px 1fr;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.divider{background:linear-gradient(180deg,transparent,var(--line),transparent);transform:scaleY(0);transform-origin:center;animation:drawY 1s .5s cubic-bezier(.2,.7,.2,1) forwards;}

.gate{
  position:relative;display:flex;flex-direction:column;min-height:300px;
  padding:clamp(28px,4vw,44px);text-decoration:none;color:inherit;isolation:isolate;
  opacity:0;animation:rise .9s cubic-bezier(.2,.7,.2,1) forwards;
}
.gate--isa{animation-delay:.32s;}
.gate--pactum{animation-delay:.46s;}
.gate::before{ /* accent wash on hover */
  content:"";position:absolute;inset:0;z-index:-1;opacity:0;transition:opacity .4s ease;
  background:radial-gradient(120% 80% at 30% 0%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 70%);
}
.gate:hover::before{opacity:1;}
.gate--isa{--accent:var(--isa);}
.gate--pactum{--accent:var(--pactum);}

.idx{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--faint);transition:color .35s ease;}
.gate:hover .idx{color:color-mix(in srgb,var(--accent) 80%,var(--ink));}

.mark{
  margin:22px 0 auto;width:50px;height:50px;border-radius:50%;
  display:grid;place-items:center;
  background:radial-gradient(circle at 32% 28%, #ffffff, #e7ecf6);
  box-shadow:0 1px 0 rgba(255,255,255,.5) inset, 0 10px 24px -10px rgba(0,0,0,.8), 0 0 0 1px rgba(255,255,255,.06);
  transition:transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s ease;
}
.mark img{width:30px;height:30px;object-fit:contain;display:block;}
.gate:hover .mark{transform:translateY(-3px);box-shadow:0 1px 0 rgba(255,255,255,.5) inset,0 14px 30px -10px rgba(0,0,0,.85),0 0 0 1px color-mix(in srgb,var(--accent) 50%,transparent),0 0 26px -6px color-mix(in srgb,var(--accent) 60%,transparent);}

.name{
  font-size:clamp(40px,7vw,62px);font-weight:500;line-height:.96;letter-spacing:-.02em;
  margin:26px 0 0;position:relative;display:inline-block;width:fit-content;
}
.name::after{content:"";position:absolute;left:0;right:0;bottom:-10px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .45s cubic-bezier(.2,.7,.2,1);}
.gate:hover .name::after{transform:scaleX(1);}

.tag{
  margin-top:14px;font-style:italic;font-weight:400;
  font-size:clamp(15px,1.7vw,18px);line-height:1.3;color:var(--muted);letter-spacing:.01em;
}
.enter{
  margin-top:22px;display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted);transition:color .35s ease;
}
.gate:hover .enter{color:color-mix(in srgb,var(--accent) 85%,var(--ink));}
.enter .arr{transition:transform .35s cubic-bezier(.2,.7,.2,1);}
.gate:hover .enter .arr{transform:translateX(6px);}

.gate:focus-visible{outline:none;}
.gate:focus-visible .name::after{transform:scaleX(1);}
.gate:focus-visible::before{opacity:1;}

footer{
  position:relative;z-index:2;text-align:center;padding:24px;
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--faint);
  opacity:0;animation:rise .9s .7s ease forwards;
}
footer .dot{color:var(--gold);}

@keyframes rise{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:translateY(0);}}
@keyframes drawY{to{transform:scaleY(1);}}

@media (max-width:620px){
  .portal{grid-template-columns:1fr;}
  .divider{height:1px;width:100%;background:linear-gradient(90deg,transparent,var(--line),transparent);transform:scaleX(0);transform-origin:center;animation:drawX 1s .5s cubic-bezier(.2,.7,.2,1) forwards;}
  .gate{min-height:auto;}
  .mark{margin-top:18px;}
}
@keyframes drawX{to{transform:scaleX(1);}}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .masthead,.gate,footer{opacity:1;}
  .divider{transform:none;}
}