<form class="lf-liquid">
  <div class="lf-liquid-stripe"></div>
  <div class="lf-liquid-body">
    <div class="lf-liquid-title">Account Login</div>
    <div class="lf-liquid-row">
      <input type="email" placeholder="Email" required />
    </div>
    <div class="lf-liquid-row">
      <input type="password" placeholder="Password" required />
    </div>
    <div class="lf-liquid-meta">
      <label><input type="checkbox" /> Remember me</label>
      <a href="#">Forgot?</a>
    </div>
    <button type="submit" class="lf-liquid-btn">Continue</button>
  </div>
</form>

.lf-liquid {
  position: relative;
  width: 100%;
  max-width: 320px;
  background: #15151d;
  border-radius: 14px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 64px 1fr;
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.lf-liquid-stripe {
  background: linear-gradient(180deg, #7c6cff, #ff6c8a);
  animation: lfqSlide 0.6s cubic-bezier(0.2, 0.9, 0.3, 1.4) both;
  position: relative;
}
.lf-liquid-stripe::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 30%, rgba(255, 255, 255, 0.45) 0%, transparent 40%);
  mix-blend-mode: screen;
}
@keyframes lfqSlide {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(0);
  }
}
.lf-liquid-body {
  padding: 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.lf-liquid-title {
  font-size: 16px;
  font-weight: 700;
  color: #f0eeff;
  letter-spacing: -0.01em;
}
.lf-liquid-row {
  position: relative;
}
.lf-liquid-row input {
  width: 100%;
  box-sizing: border-box;
  padding: 8px 0 9px;
  font-size: 13px;
  background: transparent;
  color: #f0eeff;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  outline: none;
}
.lf-liquid-row::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  right: 50%;
  height: 1.5px;
  background: linear-gradient(90deg, #7c6cff, #ff6c8a);
  transition:
    left 0.28s ease,
    right 0.28s ease;
}
.lf-liquid-row:focus-within::after {
  left: 0;
  right: 0;
}
.lf-liquid-row input::placeholder {
  color: #b8b6d4;
}
.lf-liquid-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: #b8b6d4;
}
.lf-liquid-meta a {
  color: #a78bfa;
  text-decoration: none;
}
.lf-liquid-meta input {
  accent-color: #7c6cff;
  margin-right: 4px;
}
.lf-liquid-btn {
  margin-top: 4px;
  padding: 10px 14px;
  background: #f0eeff;
  color: #15151d;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.12s;
}
.lf-liquid-btn:hover {
  transform: translateY(-1px);
}

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