.auth-container {
  max-width: 420px;
  margin: 80px auto;
  padding: 30px;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.auth-container h2 {
  text-align: center;
  margin-bottom: 20px;
}

.auth-container input {
  width: 100%;
  padding: 10px;
  margin: 8px 0 14px 0;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.auth-container button {
  width: 100%;
  padding: 10px;
  background: #2563eb; /* calm professional blue */
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.auth-container button:hover {
  background: #1e4fd6;
}

.auth-links {
  text-align: center;
  margin-top: 15px;
}

.auth-links a {
  color: #2563eb;
  text-decoration: none;
  font-size: 0.9rem;
}

.auth-links a:hover {
  text-decoration: underline;
}

.flash-message {
  padding: 10px;
  margin-bottom: 15px;
  border-radius: 4px;
  font-size: 0.9rem;
}

.flash-success { background: #e6fffa; color: #065f46; }
.flash-danger  { background: #fee2e2; color: #991b1b; }
.flash-warning { background: #fef3c7; color: #92400e; }