/* =====================================================================
   PORTAL TOGGLE (mobile hamburger) + FULL-SCREEN MENU
   Artistic: three curved orbit arcs + orbiting satellite dot,
   morphs into a portal-X when opened.
   ===================================================================== */

.portal-toggle{
  position:fixed;top:14px;right:14px;z-index:200;
  width:54px;height:54px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,rgba(255,255,255,.08),rgba(123,60,255,.22) 60%,rgba(10,4,28,.9) 100%);
  border:1px solid rgba(255,216,122,.35);
  box-shadow:
    0 6px 22px rgba(0,0,0,.45),
    0 0 18px rgba(255,43,214,.25),
    inset 0 0 14px rgba(48,232,255,.12);
  cursor:pointer;
  display:none;
  padding:0;
  backdrop-filter:blur(6px);
  transition:transform .35s cubic-bezier(.2,.8,.2,1.1),box-shadow .4s,border-color .4s;
}
.portal-toggle:hover{transform:scale(1.06);box-shadow:0 6px 30px rgba(0,0,0,.55),0 0 30px rgba(255,216,122,.4),inset 0 0 20px rgba(48,232,255,.2)}
.portal-toggle.is-open{transform:rotate(90deg);border-color:rgba(48,232,255,.55)}

/* Three curved orbit arcs — each sits as a portion of a circular stroke */
.portal-toggle .pt-orbit{
  position:absolute;left:50%;top:50%;border-radius:50%;
  border:1.5px solid transparent;pointer-events:none;
  transform:translate(-50%,-50%);
  transition:opacity .3s,transform .45s cubic-bezier(.2,.8,.2,1.1);
}
.portal-toggle .pt-orbit-1{
  width:34px;height:34px;
  border-top-color:var(--gold);border-right-color:var(--gold);
  transform:translate(-50%,-50%) rotate(-45deg);
  filter:drop-shadow(0 0 4px rgba(255,216,122,.6));
}
.portal-toggle .pt-orbit-2{
  width:26px;height:26px;
  border-bottom-color:var(--cyan);border-left-color:var(--cyan);
  transform:translate(-50%,-50%) rotate(25deg);
  filter:drop-shadow(0 0 4px rgba(48,232,255,.6));
}
.portal-toggle .pt-orbit-3{
  width:20px;height:20px;
  border-top-color:var(--magenta);
  transform:translate(-50%,-50%) rotate(120deg);
  filter:drop-shadow(0 0 4px rgba(255,43,214,.6));
}

/* Orbiting satellite dot */
.portal-toggle .pt-sat{
  position:absolute;left:50%;top:50%;width:6px;height:6px;border-radius:50%;
  background:var(--gold);
  box-shadow:0 0 10px var(--gold),0 0 20px rgba(255,216,122,.5);
  transform-origin:center;
  animation:ptOrbit 3.2s linear infinite;
}
@keyframes ptOrbit{
  0%   { transform: translate(-50%,-50%) rotate(0deg) translateX(17px) rotate(0deg) }
  100% { transform: translate(-50%,-50%) rotate(360deg) translateX(17px) rotate(-360deg) }
}

/* Hidden X (revealed when open) */
.portal-toggle .pt-x{
  position:absolute;inset:0;display:grid;place-items:center;
  opacity:0;transition:opacity .3s;
}
.portal-toggle .pt-x span{
  position:absolute;width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--gold),var(--magenta));
  box-shadow:0 0 8px rgba(255,43,214,.7);
}
.portal-toggle .pt-x span:first-child{transform:rotate(45deg)}
.portal-toggle .pt-x span:last-child{transform:rotate(-45deg)}
.portal-toggle.is-open .pt-x{opacity:1}
.portal-toggle.is-open .pt-orbit{opacity:0}
.portal-toggle.is-open .pt-sat{opacity:0}

/* Gentle idle breathing on the whole button */
.portal-toggle:not(.is-open){animation:ptBreathe 4s ease-in-out infinite}
@keyframes ptBreathe{50%{box-shadow:0 6px 26px rgba(0,0,0,.5),0 0 26px rgba(255,43,214,.35),inset 0 0 18px rgba(48,232,255,.18)}}

/* =========================== OVERLAY MENU =========================== */
.portal-menu{
  position:fixed;inset:0;z-index:190;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:80px 20px 40px;
  visibility:hidden;opacity:0;
  transition:opacity .4s ease,visibility 0s linear .4s;
}
.portal-menu.is-open{visibility:visible;opacity:1;transition-delay:0s}
.portal-menu-bg{
  position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(ellipse at 80% 14%,rgba(255,43,214,.28),transparent 60%),
    radial-gradient(ellipse at 20% 86%,rgba(48,232,255,.2),transparent 60%),
    radial-gradient(circle at 50% 50%,rgba(10,4,28,.88),rgba(2,2,10,.97));
  backdrop-filter:blur(14px) saturate(140%);
}

/* Radial portal-open effect */
.portal-menu::before{
  content:"";position:absolute;top:38px;right:38px;width:0;height:0;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,216,122,.45),rgba(255,43,214,.25) 40%,transparent 75%);
  pointer-events:none;
  transition:width .6s cubic-bezier(.2,.85,.25,1),height .6s cubic-bezier(.2,.85,.25,1),opacity .5s;
  opacity:0;z-index:-1;
}
.portal-menu.is-open::before{width:300vw;height:300vw;top:-150vw;right:-150vw;opacity:1}

.portal-menu-list{
  list-style:none;padding:0;margin:0;
  display:flex;flex-direction:column;gap:6px;text-align:center;
  max-width:520px;width:100%;
}
.portal-menu-list li{
  opacity:0;transform:translateY(30px) scale(.96);
  transition:opacity .6s,transform .6s cubic-bezier(.34,1.3,.5,1);
}
.portal-menu.is-open .portal-menu-list li{opacity:1;transform:none}
.portal-menu.is-open .portal-menu-list li:nth-child(1){transition-delay:.12s}
.portal-menu.is-open .portal-menu-list li:nth-child(2){transition-delay:.18s}
.portal-menu.is-open .portal-menu-list li:nth-child(3){transition-delay:.24s}
.portal-menu.is-open .portal-menu-list li:nth-child(4){transition-delay:.30s}
.portal-menu.is-open .portal-menu-list li:nth-child(5){transition-delay:.36s}
.portal-menu.is-open .portal-menu-list li:nth-child(6){transition-delay:.42s}
.portal-menu.is-open .portal-menu-list li:nth-child(7){transition-delay:.48s}

.portal-menu-list a{
  display:block;padding:14px 20px;
  font-family:'Orbitron',sans-serif;font-size:clamp(1.3rem,5vw,1.8rem);
  font-weight:600;letter-spacing:.15em;text-transform:uppercase;
  color:#fff;text-decoration:none;
  position:relative;transition:color .25s,letter-spacing .3s,transform .25s;
}
.portal-menu-list a::before{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:0;height:1px;background:linear-gradient(90deg,transparent,var(--gold),var(--magenta),transparent);
  transition:width .3s;
}
.portal-menu-list a:hover{color:var(--gold);letter-spacing:.2em;transform:scale(1.04)}
.portal-menu-list a:hover::before{width:120%}

.portal-menu-foot{
  margin-top:30px;font-family:'Orbitron',sans-serif;font-size:10px;letter-spacing:.3em;
  text-transform:uppercase;color:var(--gold);opacity:.55;text-align:center;
}

body.portal-open{overflow:hidden}

/* ===== Show hamburger & hide inline nav pill on mobile ===== */
@media (max-width:760px){
  .portal-toggle{display:block}
  .nav{display:none !important}
}