* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #0f1115;
  color: #f0f0f0;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  text-align: center;
}

.container {
  max-width: 480px;
  padding: 2rem;
  background: #1c1e24;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #ffffff;
}

.subtitle {
  font-size: 1rem;
  color: #b0b3b8;
  margin-bottom: 1.5rem;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

input[type="email"] {
  padding: 0.75rem;
  border: 1px solid #333;
  border-radius: 8px;
  font-size: 1rem;
  width: 100%;
  background-color: #2b2e36;
  color: #fff;
}

input[type="email"]::placeholder {
  color: #888;
}

button {
  padding: 0.75rem;
  font-size: 1rem;
  background-color: green;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #1565c0;
}

.footer {
  font-size: 0.875rem;
  color: #777;
}