body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(
    180deg,
    #0d0d0d,
    #141414,
    #0a0a0a
  );
  color: #eee;
  font-family: Arial, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-box {
  width: 430px;
  padding: 35px;
  background: #1b1b1b;
  border: 1px solid #333;
  border-radius: 12px;
  text-align: center;
}

.logo {
  max-width: 275px;
  margin-bottom: 20px;
}

h1 {
  margin: 10px 0 5px 0;
  font-size: 2.3rem;
}

.subtitle {
  color: #c9a646;
  font-size: 1rem;
  font-weight: bold;
  margin-bottom: 25px;
}

.notice {
  color: #c9a646;
  font-weight: bold;
}

.description {
  margin-bottom: 25px;
}

input {
  width: 100%;
  box-sizing: border-box;
  margin-top: 12px;
  padding: 12px;
  background: #111;
  color: #eee;
  border: 1px solid #444;
  border-radius: 6px;
}

button {
  width: 100%;
  margin-top: 16px;
  padding: 12px;
  background: #c9a646;
  color: #111;
  border: none;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
}

button:hover {
  background: #e0bd58;
}

.login-message {
  min-height: 20px;
  margin-top: 18px;
  color: #c9a646;
  font-weight: bold;
}

.motto {
  margin-top: 25px;
  color: #c9a646;
  font-style: italic;
  font-size: 1.1rem;
}

footer {
  margin-top: 25px;
  color: #888;
  font-size: 0.85rem;
}