#introOverlay.portal-intro {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  overflow: clip;
  background:
    radial-gradient(circle at 12% 20%, rgba(21, 101, 192, 0.28), transparent 22%),
    radial-gradient(circle at 82% 16%, rgba(0, 176, 255, 0.2), transparent 18%),
    radial-gradient(circle at 70% 82%, rgba(33, 150, 243, 0.16), transparent 20%),
    linear-gradient(135deg, rgba(7, 16, 28, 0.9) 0%, rgba(8, 21, 42, 0.84) 42%, rgba(8, 16, 28, 0.9) 100%);
  opacity: 1;
  visibility: visible;
}

#introOverlay.portal-intro.is-hidden {
  animation: loaderOut 0.68s ease forwards;
  pointer-events: none;
}

@keyframes loaderOut {
  to {
    opacity: 0;
    visibility: hidden;
    transform: scale(1.04);
  }
}

.portal-intro-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.portal-intro-stage {
  position: relative;
  z-index: 1;
  width: min(100% - 2rem, 64rem);
  min-height: min(76vh, 44rem);
  display: grid;
  place-items: center;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(160, 210, 255, 0.12);
  border-radius: clamp(1.75rem, 3vw, 2.2rem);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 20px 80px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(28px) saturate(135%);
  -webkit-backdrop-filter: blur(28px) saturate(135%);
}

.portal-intro-logos {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 1.8rem;
}

.portal-intro-logo {
  object-fit: contain;
  opacity: 0;
  filter: brightness(0) invert(1);
  transition: filter 1.8s ease;
}

.portal-intro-logo.is-colored {
  filter: drop-shadow(0 0 22px rgba(33, 150, 243, 0.68)) brightness(1.06);
}

.portal-intro-logo-sac {
  width: clamp(10rem, 22vw, 18rem);
  height: clamp(10rem, 22vw, 18rem);
  animation: ldSlideRight 0.76s cubic-bezier(0.22, 1, 0.36, 1) 0.22s forwards;
}

.portal-intro-logo-ksu {
  width: clamp(6.25rem, 13vw, 11rem);
  height: clamp(6.25rem, 13vw, 11rem);
  animation: ldSlideLeft 0.76s cubic-bezier(0.22, 1, 0.36, 1) 0.56s forwards;
}

@keyframes ldSlideRight {
  from {
    opacity: 0;
    transform: translateX(-60px) scale(0.8);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes ldSlideLeft {
  from {
    opacity: 0;
    transform: translateX(60px) scale(0.8);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

.portal-intro-divider {
  width: 2px;
  height: 0;
  margin: 0 1.5rem 0 -2.2rem;
  flex-shrink: 0;
  opacity: 0;
  background: linear-gradient(
    to bottom,
    transparent,
    rgba(33, 150, 243, 0.9),
    rgba(0, 176, 255, 0.9),
    transparent
  );
  box-shadow: 0 0 12px rgba(33, 150, 243, 0.55);
  animation: ldDivider 0.5s ease 1.02s forwards;
}

@keyframes ldDivider {
  to {
    height: clamp(6rem, 14vw, 8.75rem);
    opacity: 1;
  }
}

.portal-intro-ring {
  position: absolute;
  width: clamp(14rem, 30vw, 23.75rem);
  height: clamp(14rem, 30vw, 23.75rem);
  border-radius: 50%;
  border: 2px solid rgba(33, 150, 243, 0);
  pointer-events: none;
  opacity: 0;
}

.portal-intro-ring.is-active {
  animation: ldRingPulse 1.7s ease-out 1.28s infinite;
}

@keyframes ldRingPulse {
  0% {
    opacity: 0.8;
    transform: scale(0.9);
    border-color: rgba(33, 150, 243, 0.7);
  }
  100% {
    opacity: 0;
    transform: scale(1.6);
    border-color: rgba(33, 150, 243, 0);
  }
}

.portal-intro-copy {
  position: relative;
  z-index: 2;
  text-align: center;
  opacity: 0;
  animation: ldTextUp 0.5s ease 1.18s forwards;
}

@keyframes ldTextUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.portal-intro-kicker {
  display: none;
}

.portal-intro-copy h1 {
  margin: 0;
  color: #fff;
  font-family: "Syne", sans-serif;
  font-size: clamp(1.15rem, 0.95rem + 0.6vw, 1.6rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.portal-intro-subtitle {
  margin: 0.35rem auto 0;
  max-width: 32rem;
  color: #7b9cc8;
  font-family: "DM Sans", "Manrope", sans-serif;
  font-size: clamp(0.78rem, 0.72rem + 0.25vw, 0.95rem);
  font-weight: 500;
  letter-spacing: 0.28em;
  line-height: 1.35;
  text-transform: uppercase;
}

.portal-intro-progress {
  position: relative;
  z-index: 2;
  width: min(100%, 12.5rem);
  margin-top: 1.5rem;
  opacity: 0;
  animation: ldTextUp 0.45s ease 1.34s forwards;
}

.portal-intro-progress-track {
  height: 2px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(33, 150, 243, 0.15);
}

.portal-intro-progress-fill {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #1565c0, #00b0ff, #1565c0);
  background-size: 200% 100%;
}

.portal-intro-progress-fill.is-animating {
  animation: ldBarFill 1.25s ease forwards, ldBarShine 1s linear infinite;
}

@keyframes ldBarFill {
  to {
    width: 100%;
  }
}

@keyframes ldBarShine {
  0%,
  100% {
    background-position: 0 0;
  }
  50% {
    background-position: 100% 0;
  }
}

@media (max-width: 700px) {
  .portal-intro-stage {
    width: min(100% - 1rem, 40rem);
    min-height: min(72vh, 34rem);
    padding: 1.25rem 1rem;
  }

  .portal-intro-logo-sac {
    width: 15rem;
    height: 15rem;
  }

  .portal-intro-logo-ksu {
    width: 8.5rem;
    height: 8.5rem;
  }

  .portal-intro-divider {
    margin: 0 0.75rem 0 -1.25rem;
  }

  .portal-intro-copy h1 {
    letter-spacing: 0.06em;
  }
}

@media (max-width: 480px) {
  .portal-intro-stage {
    width: min(100% - 0.8rem, 32rem);
    min-height: min(70vh, 30rem);
    border-radius: 1.5rem;
  }

  .portal-intro-logos {
    margin-bottom: 1.2rem;
  }

  .portal-intro-logo-sac {
    width: 11rem;
    height: 11rem;
  }

  .portal-intro-logo-ksu {
    width: 6rem;
    height: 6rem;
  }

  .portal-intro-divider {
    margin: 0 0.5rem 0 -0.85rem;
  }

  .portal-intro-progress {
    width: min(100%, 10rem);
  }
}