<form class="lf-cons" aria-label="Constellation sign in">
  <div class="lf-cons-sky" aria-hidden="true">
    <span class="lf-cons-star s1"></span>
    <span class="lf-cons-star s2"></span>
    <span class="lf-cons-star s3"></span>
    <span class="lf-cons-star s4"></span>
    <span class="lf-cons-star s5"></span>
    <span class="lf-cons-star s6"></span>
    <span class="lf-cons-shoot"></span>
  </div>
  <article class="lf-cons-card">
    <h2 class="lf-cons-title">Welcome traveller</h2>
    <p class="lf-cons-sub">Sign in to continue your journey</p>
    <label class="lf-cons-row">
      <input type="email" name="email" autocomplete="email" placeholder="Email" required />
    </label>
    <label class="lf-cons-row">
      <input
        type="password"
        name="password"
        autocomplete="current-password"
        placeholder="Password"
        required
      />
    </label>
    <button type="submit" class="lf-cons-btn">Continue</button>
  </article>
</form>

.lf-cons {
  position: relative;
  isolation: isolate;
  width: 100%;
  max-width: 320px;
  border-radius: 18px;
  overflow: hidden;
  background: radial-gradient(ellipse at top, #1a1838 0%, #07071a 70%);
}
.lf-cons-sky {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.lf-cons-star {
  position: absolute;
  width: 2px;
  height: 2px;
  background: white;
  border-radius: 50%;
  box-shadow: 0 0 4px rgba(255, 255, 255, 0.8);
  animation: lfConsTwinkle 3s ease-in-out infinite;
}
.lf-cons-star.s1 {
  top: 12%;
  left: 18%;
  animation-delay: 0s;
}
.lf-cons-star.s2 {
  top: 24%;
  left: 70%;
  animation-delay: 0.6s;
}
.lf-cons-star.s3 {
  top: 38%;
  left: 32%;
  animation-delay: 1.2s;
  width: 1.5px;
  height: 1.5px;
}
.lf-cons-star.s4 {
  top: 54%;
  left: 84%;
  animation-delay: 1.8s;
}
.lf-cons-star.s5 {
  top: 68%;
  left: 14%;
  animation-delay: 0.3s;
  width: 1.5px;
  height: 1.5px;
}
.lf-cons-star.s6 {
  top: 80%;
  left: 56%;
  animation-delay: 1s;
}
@keyframes lfConsTwinkle {
  0%,
  100% {
    opacity: 0.35;
    transform: scale(0.8);
  }
  50% {
    opacity: 1;
    transform: scale(1.4);
  }
}
.lf-cons-shoot {
  position: absolute;
  top: 18%;
  left: -10%;
  width: 60px;
  height: 1.5px;
  background: linear-gradient(90deg, transparent, #fff, transparent);
  transform: rotate(-18deg);
  animation: lfConsShoot 6s ease-in infinite;
  opacity: 0;
}
@keyframes lfConsShoot {
  0%,
  88% {
    transform: translateX(0) rotate(-18deg);
    opacity: 0;
  }
  92% {
    opacity: 1;
  }
  100% {
    transform: translateX(380px) rotate(-18deg);
    opacity: 0;
  }
}
.lf-cons-card {
  position: relative;
  z-index: 1;
  margin: 22px;
  padding: 22px;
  border-radius: 14px;
  background: rgba(7, 7, 26, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  display: grid;
  gap: 11px;
}
.lf-cons-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
}
.lf-cons-sub {
  margin: -6px 0 4px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
}
.lf-cons-row input {
  width: 100%;
  box-sizing: border-box;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13px;
  color: #fff;
  outline: none;
  transition: border-color 0.15s;
}
.lf-cons-row input::placeholder {
  color: rgba(255, 255, 255, 0.55);
}
.lf-cons-row input:focus {
  border-color: rgba(255, 255, 255, 0.5);
}
.lf-cons-btn {
  margin-top: 4px;
  padding: 10px;
  background: linear-gradient(135deg, #c4b5fd, #818cf8);
  color: #07071a;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.12s;
}
.lf-cons-btn:hover {
  transform: translateY(-1px);
}

@media (prefers-reduced-motion: reduce) {
  .lf-cons,
  .lf-cons * {
    animation: none !important;
  }
}