<label class="if-notch">
  <span class="if-notch-label">Full name</span>
  <input type="text" name="name" autocomplete="name" placeholder=" " required />
  <span class="if-notch-frame" aria-hidden="true">
    <span class="if-notch-l"></span>
    <span class="if-notch-cut"><span>Full name</span></span>
    <span class="if-notch-r"></span>
  </span>
</label>

.if-notch {
  position: relative;
  display: block;
  width: 100%;
  max-width: 280px;
}

.if-notch input {
  width: 100%;
  box-sizing: border-box;
  padding: 13px 14px;
  background: transparent;
  border: 0;
  outline: none;
  color: #f0eeff;
  font-size: 14px;
  position: relative;
  z-index: 1;
}

.if-notch input::placeholder {
  color: transparent;
}

.if-notch-label {
  position: absolute;
  left: 14px;
  top: 13px;
  font-size: 13px;
  color: #b8b6d4;
  pointer-events: none;
  transition: opacity 0.15s;
  z-index: 2;
}

.if-notch input:focus ~ .if-notch-label,
.if-notch input:not(:placeholder-shown) ~ .if-notch-label {
  opacity: 0;
}

.if-notch-frame {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 12px auto 1fr;
  pointer-events: none;
}

.if-notch-l,
.if-notch-cut,
.if-notch-r {
  border: 1px solid rgba(46, 184, 138, 0.35);
  transition: border-color 0.2s;
}

.if-notch-l {
  border-right: 0;
  border-radius: 8px 0 0 8px;
}

.if-notch-r {
  border-left: 0;
  border-radius: 0 8px 8px 0;
}

.if-notch-cut {
  border-left: 0;
  border-right: 0;
  position: relative;
  display: flex;
  align-items: center;
  padding: 0 6px;
}

.if-notch-cut > span {
  font-size: 10px;
  color: rgba(46, 184, 138, 0.85);
  font-weight: 600;
  background: #07070f;
  padding: 0 4px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transform: translateY(-13px) scale(0);
  transform-origin: left center;
  transition: transform 0.2s ease;
}

.if-notch input:focus ~ .if-notch-frame .if-notch-cut > span,
.if-notch input:not(:placeholder-shown) ~ .if-notch-frame .if-notch-cut > span {
  transform: translateY(-13px) scale(1);
}

.if-notch:focus-within .if-notch-l,
.if-notch:focus-within .if-notch-cut,
.if-notch:focus-within .if-notch-r {
  border-color: #2eb88a;
}