* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, #1b1b1b, #0e0e0e);
  color: #eaeaea;
  font-family: "Segoe UI", Inter, Arial, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
}

.container {
  max-width: 520px;
  padding: 40px;
  background: rgba(20, 20, 20, 0.9);
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

h2 {
  margin-top: 0;
  font-weight: 600;
  letter-spacing: 0.5px;
}

p {
  line-height: 1.6;
  color: #cfcfcf;
}

a {
  display: inline-block;
  margin-top: 24px;
  color: #6cbcff;
  text-decoration: none;
  font-weight: 500;
}

a:hover {
  text-decoration: underline;
}

form {
  margin-top: 20px;
}

input[type="password"] {
  width: 100%;
  padding: 12px 14px;
  margin-top: 12px;
  background: #0f0f0f;
  border: 1px solid #333;
  border-radius: 8px;
  color: #eee;
  font-size: 15px;
}

input[type="password"]:focus {
  outline: none;
  border-color: #6cbcff;
}

button {
  margin-top: 16px;
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, #6cbcff, #4e8cff);
  border: none;
  border-radius: 8px;
  color: #000;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  filter: brightness(1.05);
}

.error {
  margin-top: 14px;
  color: #ff6b6b;
  font-size: 14px;
}

.success {
  margin-top: 20px;
  padding: 16px;
  background: #0c1a0c;
  border: 1px solid #2f6f2f;
  border-radius: 8px;
  color: #9cff9c;
}