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

body {
  min-height: 100vh;
  background: #0f0f0f;
  color: #e0e0e0;
  font-family: "Segoe UI", sans-serif;
}

.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  width: 320px;
  padding: 2.5rem;
  border: 1px solid #2a2a2a;
  border-radius: 8px;
  background: #181818;
}

.login-card h1 {
  text-align: center;
  margin-bottom: 1.5rem;
  font-size: 1.4rem;
  letter-spacing: 0.1em;
  color: #fff;
}

.login-card .form-control {
  background: #111;
  border: 1px solid #333;
  color: #e0e0e0;
  border-radius: 4px;
}

.login-card .form-control:focus {
  background: #111;
  border-color: #555;
  color: #e0e0e0;
  box-shadow: none;
}

.login-card .btn-dark {
  background: #fff;
  color: #000;
  border: none;
  font-weight: 600;
  border-radius: 4px;
  padding: 0.5rem;
}

.login-card .btn-dark:hover {
  background: #ddd;
}

.login-card .form-control::placeholder {
  color: #888;
}

.error-msg {
  text-align: center;
  color: #e05555;
  font-size: 0.85rem;
  margin-top: 1rem;
  display: none;
}

.error-msg.visible {
  display: block;
}