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

body {
  background: #0f0f0f;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  font-family: Arial, sans-serif;
}

.container {
  background: #1a1a1a;
  padding: 2.5rem;
  border-radius: 16px;
  width: 100%;
  max-width: 400px;
  border: 1px solid #333;
}

h2 {
  color: white;
  font-size: 1.8rem;
  margin-bottom: 0.3rem;
}

.subtitle {
  color: #888;
  font-size: 0.9rem;
  margin-bottom: 1.8rem;
}

label {
  display: block;
  color: #ccc;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}

input {
  width: 100%;
  padding: 0.8rem 1rem;
  background: #2a2a2a;
  border: 1px solid #444;
  border-radius: 8px;
  color: white;
  font-size: 0.95rem;
  margin-bottom: 1.2rem;
  outline: none;
}

input:focus {
  border-color: #6366f1;
}

button {
  width: 100%;
  padding: 0.9rem;
  background: #6366f1;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background: #4f46e5;
}

.error {
  color: #f87171;
  font-size: 0.85rem;
  margin-bottom: 0.8rem;
  min-height: 1rem;
}

.bottom {
  text-align: center;
  color: #888;
  font-size: 0.9rem;
  margin-top: 1.2rem;
}

.bottom a {
  color: #6366f1;
  text-decoration: none;
  font-weight: bold;
}

.bottom a:hover {
  text-decoration: underline;
}