/* =========================================================
   RSB23 ELECTRONICS SITEWIDE PORTAL V2
   ========================================================= */
.electronics-portal-nav-item {
  display: flex;
  align-items: center;
}

.nav-links .electronics-portal-nav-link,
.electronics-portal-nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .38rem;
  color: #80e9d2 !important;
  text-decoration: none;
  text-shadow: 0 0 14px rgba(84, 224, 194, .20);
}

.nav-links .electronics-portal-nav-link::before,
.electronics-portal-nav-link::before {
  content: "⚡";
  color: #f0c766;
  font-size: .84em;
  filter: drop-shadow(0 0 5px rgba(240, 199, 102, .42));
}

.nav-links .electronics-portal-nav-link::after,
.electronics-portal-nav-link::after {
  position: absolute;
  right: 0;
  bottom: -.48rem;
  left: 0;
  height: 2px;
  content: "";
  opacity: 0;
  transform: scaleX(.25);
  background: linear-gradient(90deg, transparent, #54e0c2, #f0c766, transparent);
  box-shadow: 0 0 12px rgba(84, 224, 194, .7);
  transition: opacity .18s ease, transform .18s ease;
}

.nav-links .electronics-portal-nav-link:hover::after,
.nav-links .electronics-portal-nav-link:focus-visible::after,
.electronics-portal-nav-link:hover::after,
.electronics-portal-nav-link:focus-visible::after {
  opacity: 1;
  transform: scaleX(1);
}

.electronics-portal-mobile-item a {
  display: flex;
  align-items: center;
  gap: .65rem;
  color: #80e9d2 !important;
}

.electronics-portal-mobile-symbol {
  width: 1.35rem;
  color: #f0c766;
  font-size: 1rem;
  text-align: center;
}

/* Full-screen transition created by electronics-portal.js. */
.rsb23-electronics-portal {
  position: fixed;
  inset: 0;
  z-index: 2147483000;
  display: grid;
  place-items: center;
  overflow: hidden;
  opacity: 0;
  color: #eef9f7;
  background:
    radial-gradient(circle at 50% 50%, rgba(25, 108, 101, .24), transparent 34rem),
    #02080b;
  pointer-events: none;
  transition: opacity .18s ease;
}

.rsb23-electronics-portal.is-active {
  opacity: 1;
  pointer-events: auto;
}

.rsb23-electronics-portal::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: .34;
  background:
    repeating-linear-gradient(0deg, transparent 0 3px, rgba(255,255,255,.025) 3px 4px),
    linear-gradient(rgba(84,224,194,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(84,224,194,.055) 1px, transparent 1px);
  background-size: auto, 44px 44px, 44px 44px;
}

.rsb23-electronics-portal__surge {
  position: absolute;
  top: 50%;
  left: -20%;
  width: 140%;
  height: 2px;
  transform: translateY(-50%);
  background: #54e0c2;
  box-shadow:
    0 0 8px #54e0c2,
    0 0 30px rgba(84,224,194,.9),
    0 0 90px rgba(84,224,194,.45);
  animation: electronicsPortalSurge 2.6s cubic-bezier(.24,.8,.24,1) both;
}

.rsb23-electronics-portal__circuit {
  position: absolute;
  inset: 0;
  opacity: .72;
}

.rsb23-electronics-portal__circuit path {
  fill: none;
  stroke: rgba(84,224,194,.48);
  stroke-width: 2;
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: electronicsPortalTrace 1.65s ease .18s forwards;
}

.rsb23-electronics-portal__circuit circle {
  fill: #f0c766;
  opacity: 0;
  filter: drop-shadow(0 0 8px #f0c766);
  animation: electronicsPortalNode .3s ease 1.15s forwards;
}

.rsb23-electronics-portal__panel {
  position: relative;
  z-index: 3;
  width: min(760px, calc(100% - 2rem));
  text-align: center;
}

.rsb23-electronics-portal__kicker {
  margin: 0 0 .75rem;
  color: #54e0c2;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: clamp(.62rem, 1.5vw, .78rem);
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.rsb23-electronics-portal__panel h2 {
  margin: 0;
  color: #fff;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  font-size: clamp(2.7rem, 8vw, 6.8rem);
  letter-spacing: -.065em;
  line-height: .88;
  text-shadow: 0 0 40px rgba(84,224,194,.18);
}

.rsb23-electronics-portal__panel h2 span {
  display: block;
  color: #f0c766;
}

.rsb23-electronics-portal__readout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  width: min(560px, 100%);
  margin: 1.35rem auto;
  overflow: hidden;
  border: 1px solid rgba(156,220,211,.22);
  border-radius: 12px;
  background: rgba(2,13,16,.72);
}

.rsb23-electronics-portal__readout div {
  padding: .72rem;
  border-right: 1px solid rgba(156,220,211,.16);
}

.rsb23-electronics-portal__readout div:last-child { border-right: 0; }
.rsb23-electronics-portal__readout span,
.rsb23-electronics-portal__readout b { display: block; }
.rsb23-electronics-portal__readout span {
  color: #8caeab;
  font-size: .58rem;
  letter-spacing: .11em;
  text-transform: uppercase;
}
.rsb23-electronics-portal__readout b {
  margin-top: .25rem;
  color: #eef9f7;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .82rem;
}

.rsb23-electronics-portal__progress {
  width: min(460px, 100%);
  height: 9px;
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid rgba(156,220,211,.24);
  border-radius: 999px;
  background: rgba(255,255,255,.04);
}

.rsb23-electronics-portal__progress i {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, #54e0c2, #f0c766, #54e0c2);
  box-shadow: 0 0 18px rgba(84,224,194,.7);
  animation: electronicsPortalLoad 2.35s cubic-bezier(.3,.75,.25,1) forwards;
}

.rsb23-electronics-portal__status {
  min-height: 1.2rem;
  margin: .75rem 0 0;
  color: #9db7b7;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .7rem;
  letter-spacing: .08em;
}

.rsb23-electronics-portal__skip {
  margin-top: 1.2rem;
  border: 0;
  color: rgba(255,255,255,.42);
  background: transparent;
  cursor: pointer;
  font: .64rem ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .12em;
  text-transform: uppercase;
}

@keyframes electronicsPortalTrace { to { stroke-dashoffset: 0; } }
@keyframes electronicsPortalNode { to { opacity: 1; } }
@keyframes electronicsPortalLoad { to { width: 100%; } }
@keyframes electronicsPortalSurge {
  0% { opacity: 0; transform: translateY(-50%) scaleX(.02); }
  12% { opacity: 1; }
  70% { opacity: .55; transform: translateY(-50%) scaleX(1); }
  100% { opacity: 0; transform: translateY(-50%) scaleX(1); }
}

@media (max-width: 560px) {
  .rsb23-electronics-portal__readout { grid-template-columns: 1fr; }
  .rsb23-electronics-portal__readout div { border-right: 0; border-bottom: 1px solid rgba(156,220,211,.16); }
  .rsb23-electronics-portal__readout div:last-child { border-bottom: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .rsb23-electronics-portal *,
  .rsb23-electronics-portal *::before,
  .rsb23-electronics-portal *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* RSB23 ELECTRONICS ICON-ONLY NAV V4 START */
/*
 * Desktop Electronics control:
 * Match the compact circular Math and Science portal controls.
 * The anchor's original text remains in the DOM as its accessible name,
 * but is not visibly rendered in the desktop navbar.
 */
.nav-links .electronics-portal-nav-item {
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-links .electronics-portal-nav-link {
  position: relative;
  box-sizing: border-box;
  display: inline-flex !important;
  flex: 0 0 2.65rem;
  align-items: center;
  justify-content: center;
  width: 2.65rem;
  min-width: 2.65rem;
  height: 2.65rem;
  padding: 0 !important;
  overflow: visible;
  border: 1px solid rgba(128, 233, 210, .14);
  border-radius: 999px;
  background:
    radial-gradient(circle at 50% 42%, rgba(84, 224, 194, .09), transparent 62%),
    rgba(4, 31, 72, .18);
  color: transparent !important;
  font-size: 0 !important;
  line-height: 1 !important;
  letter-spacing: 0 !important;
  text-indent: 0 !important;
  text-shadow: none !important;
  transition:
    border-color .18s ease,
    background-color .18s ease,
    box-shadow .18s ease,
    transform .18s ease;
}

.nav-links .electronics-portal-nav-link::before {
  position: static;
  display: block;
  margin: 0;
  content: "⚡";
  color: #f0c766;
  font-size: 1.08rem;
  line-height: 1;
  filter: drop-shadow(0 0 5px rgba(240, 199, 102, .5));
  transform: translateY(-.02rem);
}

/* Hover/focus label only; no permanent text in the navbar. */
.nav-links .electronics-portal-nav-link::after {
  position: absolute;
  z-index: 50;
  top: calc(100% + .62rem);
  right: auto;
  bottom: auto;
  left: 50%;
  width: auto;
  height: auto;
  padding: .38rem .58rem;
  content: "Electronics Lab";
  pointer-events: none;
  white-space: nowrap;
  border: 1px solid rgba(128, 233, 210, .24);
  border-radius: .35rem;
  background: rgba(3, 18, 46, .97);
  box-shadow: 0 .45rem 1.1rem rgba(0, 0, 0, .28);
  color: #a7f3e4;
  font-family: inherit;
  font-size: .67rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .08em;
  opacity: 0;
  transform: translate(-50%, -.2rem);
  transition: opacity .16s ease, transform .16s ease;
}

.nav-links .electronics-portal-nav-link:hover,
.nav-links .electronics-portal-nav-link:focus-visible {
  border-color: rgba(128, 233, 210, .42);
  background-color: rgba(84, 224, 194, .08);
  box-shadow:
    0 0 0 3px rgba(84, 224, 194, .06),
    0 0 1.15rem rgba(84, 224, 194, .15);
  transform: translateY(-1px);
}

.nav-links .electronics-portal-nav-link:hover::after,
.nav-links .electronics-portal-nav-link:focus-visible::after {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* Keep the full text label in the mobile navigation drawer. */
.mobile-nav-drawer .electronics-portal-mobile-item a,
.electronics-portal-mobile-item a {
  width: auto;
  min-width: 0;
  height: auto;
  color: #80e9d2 !important;
  font-size: inherit !important;
  letter-spacing: inherit !important;
}

@media (max-width: 900px) {
  .nav-links .electronics-portal-nav-link {
    width: 2.45rem;
    min-width: 2.45rem;
    height: 2.45rem;
    flex-basis: 2.45rem;
  }
}
/* RSB23 ELECTRONICS ICON-ONLY NAV V4 END */