* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  min-height: 100vh;
  background: linear-gradient(135deg, #1d2671, #c33764);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.container {
  text-align: center;
  padding: 2rem;
  max-width: 420px;
  width: 100%;
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 1rem;
}

.subtitle {
  opacity: 0.9;
  margin-bottom: 2rem;
}

.notify-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.notify-form input {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  border: none;
  font-size: 1rem;
}

.notify-form button {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  border: none;
  background: #fff;
  color: #c33764;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.notify-form button:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

footer {
  margin-top: 2rem;
  font-size: 0.85rem;
  opacity: 0.7;
}