.bio-popup-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, .6);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease;
  padding: 1rem;
}
.bio-popup-backdrop.is-visible { opacity: 1; visibility: visible; }

.bio-popup-card {
  width: 100%;
  max-width: 420px;
  background: #0C0C0C;
  border: 1px solid rgba(31, 191, 107, .35);
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .55);
  padding: 2rem;
  position: relative;
  transform: scale(.96);
  opacity: 0;
  transition: transform .25s ease, opacity .25s ease;
}
.bio-popup-card.is-visible,
.bio-popup-card.is-visible-reduced { transform: scale(1); opacity: 1; }

.bio-popup-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid #2A2A2A;
  border-radius: 8px;
  color: #8D8A84;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}
.bio-popup-close:hover { color: #F6F4EF; border-color: #1FBF6B; }
.bio-popup-close:focus-visible { outline: 2px solid #1FBF6B; outline-offset: 2px; }

.bio-popup-title {
  font-family: 'Archivo', sans-serif;
  font-weight: 900;
  font-size: 1.5rem;
  color: #F6F4EF;
  margin: 0 0 .75rem;
  padding-right: 1.5rem;
}
.bio-popup-line { color: #8D8A84; font-size: .95rem; line-height: 1.55; margin: 0 0 1.25rem; }
.bio-popup-label {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.bio-popup-input {
  width: 100%;
  background: #0A0A0A;
  border: 1px solid #2A2A2A;
  border-radius: 10px;
  padding: .8rem 1rem;
  color: #F6F4EF;
  font-size: .95rem;
  margin-bottom: .5rem;
  font-family: inherit;
}
.bio-popup-input::placeholder { color: #56544F; }
.bio-popup-input:focus { outline: none; border-color: #1FBF6B; }
.bio-popup-input[aria-invalid="true"] { border-color: #E2574C; }
.bio-popup-error { color: #E2574C; font-size: .8rem; margin: 0 0 .5rem; }
.bio-popup-submit {
  width: 100%;
  background: #1FBF6B;
  color: #0A0A0A;
  font-weight: 700;
  font-family: inherit;
  border: none;
  border-radius: 10px;
  padding: .85rem 1rem;
  font-size: .95rem;
  cursor: pointer;
  transition: opacity .2s ease;
}
.bio-popup-submit:hover { opacity: .88; }
.bio-popup-submit:focus-visible { outline: 2px solid #1FBF6B; outline-offset: 2px; }
.bio-popup-submit:disabled { opacity: .6; cursor: default; }
.bio-popup-success { color: #1FBF6B; font-weight: 600; font-size: .95rem; margin: .25rem 0 0; }
.bio-popup-microcopy { color: #56544F; font-size: .8rem; margin: 1rem 0 0; }

@media (prefers-reduced-motion: reduce) {
  .bio-popup-backdrop, .bio-popup-card { transition: none !important; }
}