* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: linear-gradient(135deg, #2f2f2f, #203a43, #2f2f2f);
}

input {
  font-size: 1rem;
  padding: 1rem 1.2rem;
  width: 90vw;
  max-width: 360px;
  border: none;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  outline: none;
  transition: all 0.2s ease-in-out;
  background: white;
}

input:focus {
  box-shadow: 0 0 0 3px rgba(100, 149, 237, 0.4);
}

input::placeholder {
  font-style: sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: #888;
  letter-spacing: 0.5px;
  opacity: 0.8;
}



.error {
  color: red;
  margin-top: 12px;
  font-size: 0.95rem;
  text-align: center;
}

#welcomeOverlay {
  position: fixed;
  inset: 0;
  background: #111;
  color: white;
  font-size: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease;
  z-index: 999;
  padding: 2rem;
}

#welcomeOverlay.active {
  opacity: 1;
  visibility: visible;
}