/* Global Styles */
:root {
  --primary: #0d6efd;
  --primary-hover: #0b5ed7;
  --success: #198754;
  --danger: #dc3545;
  --light-gray: #f8f9fa;
  --dark-gray: #343a40;
  --border-radius: 0.5rem;
  --box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  --transition: all 0.2s ease-in-out;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: #212529;
  background-color: #f8f9fa;
}

/* Background Gradient */
.bg-gradient {
  background: linear-gradient(135deg, #f5f7fa 0%, #e4e7eb 100%);
}

/* Card Styling */
.card {
  border-radius: var(--border-radius);
  border: none;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.card:hover {
  box-shadow: 0 0.75rem 1.5rem rgba(0, 0, 0, 0.1);
}

/* Form Controls */
.form-control,
.form-select {
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius);
  border: 1px solid #ced4da;
  transition: var(--transition);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: var(--danger);
}

/* Button Styling */
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--primary);
  border-color: var(--primary);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
}

.btn-primary:disabled {
  background-color: var(--primary);
  border-color: var(--primary);
  opacity: 0.65;
}

/* Password Strength Indicators */
.password-strength {
  list-style: none;
  padding-left: 0;
  margin-top: 0.5rem;
  font-size: 0.875rem;
}

.password-strength li {
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
}

.password-strength li i {
  margin-right: 0.5rem;
}

.text-muted {
  color: #6c757d !important;
}

.text-success {
  color: var(--success) !important;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .card-body {
    padding: 1.5rem;
  }
}

/* Links */
a {
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  text-decoration: underline;
}

/* Form Labels */
.form-label {
  font-weight: 500;
  margin-bottom: 0.5rem;
}

/* Input Groups */
.input-group .btn {
  padding-left: 0.75rem;
  padding-right: 0.75rem;
}

/* Invalid Feedback */
.invalid-feedback {
  display: none;
  font-size: 0.875rem;
}

.form-control.is-invalid ~ .invalid-feedback,
.form-select.is-invalid ~ .invalid-feedback,
.form-check-input.is-invalid ~ .invalid-feedback {
  display: block;
}

/* Custom Rounded Corners */
.rounded-4 {
  border-radius: 1rem !important;
}

/* Alert styling */
.alert {
  border-radius: var(--border-radius);
  margin-bottom: 1.5rem;
}

.alert ul {
  padding-left: 1.5rem;
  margin-bottom: 0;
}

/* Login page styling */
.login-container {
  max-width: 450px;
  margin: 0 auto;
}