body,
html {
  height: 100%;
  margin: 0;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.container-flex {
  display: flex;
  height: 100vh;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 2rem;
}

.side-panel {
  width: 250px;
  background-color: white;
  border-radius: 15px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 1.5rem;
  gap: 2rem;
  user-select: none;
}

.side-panel img.logo {
  max-width: 180px;
  height: auto;
  user-select: none;
}

.btn-return {
  width: 100%;
  border-radius: 8px;
  padding: 0.6rem 1rem;
  font-weight: 600;
  background: linear-gradient(90deg, #4b6cb7 0%, #182848 100%);
  color: white;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.btn-return:hover {
  background-color: #3a589e;
}

.login-card {
  flex: 1;
  max-width: 450px;
  padding: 2.5rem;
  border-radius: 15px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  background-color: white;
  transition: transform 0.3s ease;
}

.login-card:hover {
  transform: translateY(-5px);
}

h2.text-primary {
  color: #4b6cb7;
}

h2.text-success {
  color: #2ecc71;
}

.form-control {
  border-radius: 8px;
  padding: 0.8rem 1rem;
  border: 1px solid #e0e0e0;
  transition: border-color 0.3s ease;
}

.form-control:focus {
  border-color: #4b6cb7;
  box-shadow: 0 0 0 0.2rem rgba(75, 108, 183, 0.25);
}

.btn-primary,
.btn-success {
  border-radius: 8px;
  padding: 0.8rem;
  font-weight: 500;
  width: 100%;
}

.btn-primary {
  background-color: #4b6cb7;
  border-color: #4b6cb7;
  transition: background-color 0.3s ease;
}

.btn-primary:hover {
  background-color: #3a589e;
  border-color: #3a589e;
}

.btn-success {
  background-color: #2ecc71;
  border-color: #2ecc71;
  transition: background-color 0.3s ease;
}

.btn-success:hover {
  background-color: #27ae60;
  border-color: #27ae60;
}

p.text-primary {
  cursor: pointer;
  font-weight: 600;
}

p.text-primary:hover {
  text-decoration: underline;
}

#status {
  margin-top: 1rem;
  color: #e74c3c;
  min-height: 1.2em;
}