.beta-entry {
  position: fixed;
  z-index: 8;
  left: 50%;
  bottom: clamp(22px, 4.5vh, 48px);
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid rgba(137, 211, 255, .26);
  border-radius: 999px;
  color: rgba(235, 248, 255, .92);
  background: rgba(5, 20, 34, .48);
  box-shadow: 0 12px 42px rgba(0, 0, 0, .18), inset 0 1px 0 rgba(255, 255, 255, .06);
  backdrop-filter: blur(18px) saturate(125%);
  -webkit-backdrop-filter: blur(18px) saturate(125%);
  font-size: 14px;
  font-weight: 680;
  letter-spacing: .01em;
  text-decoration: none;
  pointer-events: auto;
  transition: border-color .22s ease, background .22s ease, transform .22s ease, box-shadow .22s ease;
}

.beta-entry::after {
  content: "→";
  font-size: 16px;
  color: #78d2ff;
  transform: translateX(0);
  transition: transform .22s ease;
}

.beta-entry:hover,
.beta-entry:focus-visible {
  border-color: rgba(137, 211, 255, .55);
  background: rgba(8, 33, 53, .72);
  box-shadow: 0 14px 48px rgba(0, 0, 0, .25), 0 0 24px rgba(81, 186, 255, .09);
  transform: translateX(-50%) translateY(-2px);
  outline: none;
}

.beta-entry:hover::after,
.beta-entry:focus-visible::after {
  transform: translateX(3px);
}

html.beta-document,
body.beta-page {
  min-height: 100%;
  height: auto;
  overflow-x: hidden;
  overflow-y: auto;
}

body.beta-page {
  color: #edf8ff;
  background:
    radial-gradient(circle at 86% 7%, rgba(89, 190, 255, .22), transparent 31%),
    radial-gradient(circle at 8% 90%, rgba(255, 206, 111, .08), transparent 34%),
    linear-gradient(155deg, #06131f 0%, #0a2135 52%, #102b42 100%);
}

body.beta-page::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .2;
  background-image:
    linear-gradient(rgba(133, 207, 247, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(133, 207, 247, .07) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 76% 72% at 50% 40%, #000 0%, rgba(0,0,0,.56) 63%, transparent 100%);
}

.beta-shell {
  position: relative;
  z-index: 1;
  width: min(100%, 920px);
  margin: 0 auto;
  padding: 28px 24px 64px;
}

.beta-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: clamp(44px, 7vw, 76px);
}

.beta-brand {
  color: #f2fbff;
  font-size: 16px;
  font-weight: 820;
  letter-spacing: .06em;
  text-decoration: none;
}

.beta-brand span {
  color: #67c9ff;
}

.beta-back {
  color: rgba(222, 241, 252, .7);
  font-size: 14px;
  text-decoration: none;
  transition: color .2s ease;
}

.beta-back:hover,
.beta-back:focus-visible {
  color: #fff;
  outline: none;
}

.beta-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 1.18fr);
  gap: clamp(34px, 6vw, 72px);
  align-items: start;
}

.beta-intro {
  padding-top: 20px;
}

.beta-kicker {
  margin: 0 0 16px;
  color: #70cbff;
  font-size: 13px;
  font-weight: 760;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.beta-title {
  margin: 0;
  color: #f3fbff;
  font-size: clamp(40px, 6vw, 70px);
  font-weight: 880;
  line-height: .98;
  letter-spacing: -.055em;
}

.beta-title span {
  display: block;
  margin-top: 12px;
  color: rgba(212, 236, 249, .78);
  font-size: .38em;
  font-weight: 680;
  line-height: 1.3;
  letter-spacing: .01em;
}

.beta-summary {
  max-width: 34em;
  margin: 28px 0 0;
  color: rgba(215, 235, 247, .7);
  font-size: 15px;
  line-height: 1.75;
}

.beta-response-note {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 26px;
  color: rgba(232, 246, 255, .86);
  font-size: 14px;
}

.beta-response-note::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #68cbff;
  box-shadow: 0 0 14px rgba(104, 203, 255, .62);
}

.beta-card {
  border: 1px solid rgba(137, 211, 255, .18);
  border-radius: 24px;
  padding: clamp(22px, 4vw, 36px);
  background: rgba(6, 22, 36, .64);
  box-shadow: 0 28px 80px rgba(0, 0, 0, .25), inset 0 1px 0 rgba(255, 255, 255, .045);
  backdrop-filter: blur(22px) saturate(118%);
  -webkit-backdrop-filter: blur(22px) saturate(118%);
}

.beta-form {
  display: grid;
  gap: 20px;
}

.beta-field {
  display: grid;
  gap: 8px;
}

.beta-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.beta-label {
  color: rgba(236, 248, 255, .88);
  font-size: 13px;
  font-weight: 680;
}

.beta-label em {
  margin-left: 4px;
  color: #74d0ff;
  font-style: normal;
}

.beta-input,
.beta-textarea {
  width: 100%;
  border: 1px solid rgba(151, 213, 246, .17);
  border-radius: 13px;
  color: #f4fbff;
  background: rgba(3, 15, 26, .62);
  font: inherit;
  font-size: 16px;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.beta-input {
  height: 50px;
  padding: 0 15px;
}

.beta-textarea {
  min-height: 170px;
  padding: 14px 15px;
  resize: vertical;
  line-height: 1.6;
}

.beta-input::placeholder,
.beta-textarea::placeholder {
  color: rgba(183, 213, 231, .36);
}

.beta-input:focus,
.beta-textarea:focus {
  border-color: rgba(100, 201, 255, .66);
  background: rgba(4, 20, 34, .78);
  box-shadow: 0 0 0 3px rgba(76, 188, 255, .09);
}

.beta-input[aria-invalid="true"],
.beta-textarea[aria-invalid="true"] {
  border-color: rgba(255, 126, 126, .72);
}

.beta-error {
  min-height: 18px;
  color: #ffadad;
  font-size: 12px;
  line-height: 1.45;
}

.beta-hint {
  margin: -2px 0 0;
  color: rgba(194, 221, 236, .48);
  font-size: 12px;
  line-height: 1.55;
}

.beta-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 52px;
  margin-top: 4px;
  border: 0;
  border-radius: 14px;
  color: #061522;
  background: linear-gradient(135deg, #a7e5ff 0%, #64c9ff 47%, #ffe59e 100%);
  box-shadow: 0 15px 38px rgba(55, 177, 241, .17);
  font: inherit;
  font-size: 15px;
  font-weight: 820;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}

.beta-submit:hover,
.beta-submit:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 18px 44px rgba(55, 177, 241, .24);
  filter: brightness(1.04);
  outline: none;
}

.beta-submit:disabled {
  cursor: wait;
  opacity: .66;
  transform: none;
}

.beta-status {
  min-height: 22px;
  margin: 0;
  color: rgba(212, 236, 249, .74);
  font-size: 13px;
  line-height: 1.55;
  text-align: center;
}

.beta-status.is-error {
  color: #ffb1b1;
}

.beta-success {
  display: none;
  min-height: 470px;
  place-items: center;
  text-align: center;
}

.beta-success.is-visible {
  display: grid;
}

.beta-success-mark {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin: 0 auto 22px;
  border: 1px solid rgba(118, 211, 255, .42);
  border-radius: 50%;
  color: #8bdcff;
  background: rgba(80, 190, 247, .08);
  font-size: 26px;
}

.beta-success h2 {
  margin: 0;
  font-size: 27px;
  letter-spacing: -.025em;
}

.beta-success p {
  max-width: 31em;
  margin: 14px auto 0;
  color: rgba(214, 235, 247, .7);
  font-size: 15px;
  line-height: 1.75;
}

.beta-success a {
  display: inline-flex;
  margin-top: 26px;
  color: #78d3ff;
  font-size: 14px;
  text-decoration: none;
}

.beta-honeypot {
  position: absolute !important;
  left: -10000px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

@media (max-width: 760px) {
  .beta-entry {
    bottom: max(18px, env(safe-area-inset-bottom));
    width: min(calc(100vw - 36px), 330px);
    min-height: 48px;
    padding: 0 18px;
  }

  .beta-shell {
    padding: 20px 16px max(42px, env(safe-area-inset-bottom));
  }

  .beta-nav {
    margin-bottom: 40px;
  }

  .beta-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .beta-intro {
    padding-top: 0;
  }

  .beta-title {
    font-size: clamp(42px, 14vw, 62px);
  }

  .beta-summary {
    margin-top: 20px;
  }

  .beta-card {
    border-radius: 20px;
    padding: 22px 18px;
  }

  .beta-field-row {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .beta-textarea {
    min-height: 150px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .beta-entry,
  .beta-entry::after,
  .beta-submit {
    transition: none;
  }
}