/* Custom CSS for Lung Cancer Risk Predictor */

/* Font and General Styling */
body {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
  min-height: 100vh;
  border-right: 1px solid #dee2e6;
  background-color: #f8f9fa !important;
}

.sidebar-content {
  position: sticky;
  top: 20px;
}

/* Main Content */
.main-content {
  background-color: rgba(255, 255, 255, 0.95);
  min-height: 100vh;
}

/* Custom Gradient Backgrounds */
.bg-gradient-primary {
  background: linear-gradient(45deg, #007bff, #0056b3) !important;
}

.bg-gradient-secondary {
  background: linear-gradient(45deg, #6c757d, #495057) !important;
}

.bg-gradient-info {
  background: linear-gradient(45deg, #17a2b8, #117a8b) !important;
}

/* Card Enhancements */
.card {
  border-radius: 15px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1) !important;
}

.card-header {
  border-radius: 15px 15px 0 0 !important;
  border: none;
}

/* Form Styling */
.form-control,
.form-select {
  border-radius: 10px;
  border: 2px solid #e9ecef;
  transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
  border-color: #007bff;
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Button Groups for Radio Buttons */
.btn-group .btn {
  border-radius: 8px !important;
  margin: 0 2px;
  transition: all 0.3s ease;
}

.btn-outline-success:checked,
.btn-check:checked + .btn-outline-success {
  background-color: #28a745;
  border-color: #28a745;
  color: white;
}

.btn-outline-danger:checked,
.btn-check:checked + .btn-outline-danger {
  background-color: #dc3545;
  border-color: #dc3545;
  color: white;
}

/* Range Slider Styling */
.form-range {
  height: 8px;
}

.form-range::-webkit-slider-thumb {
  height: 20px;
  width: 20px;
  border-radius: 50%;
  background: #007bff;
  border: none;
  box-shadow: 0 0 10px rgba(0, 123, 255, 0.3);
}

.form-range::-moz-range-thumb {
  height: 20px;
  width: 20px;
  border-radius: 50%;
  background: #007bff;
  border: none;
  box-shadow: 0 0 10px rgba(0, 123, 255, 0.3);
}

/* Button Styling */
.btn {
  border-radius: 25px;
  font-weight: 500;
  transition: all 0.3s ease;
  padding: 10px 25px;
}

.btn-lg {
  padding: 15px 35px;
  font-size: 1.1rem;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Navbar Styling */
.navbar-brand {
  font-weight: 600;
  font-size: 1.5rem;
}

/* Result Cards */
.prediction-result {
  border-radius: 15px;
  padding: 20px;
  margin: 20px 0;
  font-size: 1.2rem;
  font-weight: 600;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.high-risk {
  background: linear-gradient(45deg, #dc3545, #c82333);
  color: white;
}

.low-risk {
  background: linear-gradient(45deg, #28a745, #1e7e34);
  color: white;
}

/* Form Group Styling */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  margin-bottom: 0.5rem;
  color: #333;
}

.form-group small {
  font-style: italic;
  margin-top: 0.25rem;
  display: block;
}

/* Badge Styling */
.badge {
  font-size: 1rem;
  padding: 8px 15px;
}

/* Alert Enhancements */
.alert {
  border-radius: 10px;
  border: none;
}

/* Accordion/Expander Styling */
.accordion-button {
  border-radius: 10px !important;
  font-weight: 500;
}

.accordion-button:not(.collapsed) {
  background-color: #e7f3ff;
  color: #0056b3;
}

/* Loading Spinner */
.spinner-border {
  width: 3rem;
  height: 3rem;
}

/* Past Predictions Styling */
.past-prediction-item {
  border: 1px solid #dee2e6;
  border-radius: 10px;
  margin-bottom: 15px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.past-prediction-item:hover {
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.past-prediction-header {
  padding: 15px 20px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.past-prediction-header:hover {
  background-color: #f8f9fa;
}

.past-prediction-content {
  padding: 20px;
  background-color: #fdfdfd;
}

/* Responsive Design */
@media (max-width: 768px) {
  .sidebar {
    min-height: auto;
    border-right: none;
    border-bottom: 1px solid #dee2e6;
  }

  .main-content {
    min-height: auto;
  }

  .btn-group {
    flex-direction: column;
  }

  .btn-group .btn {
    margin: 2px 0;
    border-radius: 8px !important;
  }

  .display-4 {
    font-size: 2rem;
  }
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-in {
  animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(0);
  }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* Plot Container */
#plotDiv {
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Feedback Section */
#feedback {
  border-radius: 10px;
  resize: vertical;
}

/* Footer Text */
.text-center.text-muted {
  margin-top: 3rem;
  padding: 2rem 0;
}

/* Success/Error Messages */
.alert-success {
  background: linear-gradient(45deg, #d4edda, #c3e6cb);
  border-color: #c3e6cb;
  color: #155724;
}

.alert-danger {
  background: linear-gradient(45deg, #f8d7da, #f5c6cb);
  border-color: #f5c6cb;
  color: #721c24;
}

/* Custom Download Button */
.download-btn {
  background: linear-gradient(45deg, #007bff, #0056b3);
  border: none;
  color: white;
  padding: 12px 30px;
  border-radius: 25px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
  color: white;
  text-decoration: none;
}

/* Footer Styling */
footer {
  background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
  color: #ecf0f1;
  border-radius: 15px 15px 0 0;
  margin-top: 3rem;
  box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.1);
  padding: 3rem 2rem 2rem;
}

footer h5,
footer h6 {
  color: #3498db;
  font-weight: 600;
}

footer .text-muted {
  color: #bdc3c7 !important;
}

footer a.text-muted:hover {
  color: #3498db !important;
  text-decoration: none;
  transform: translateX(5px);
  transition: all 0.3s ease;
}

footer .fab,
footer .fas {
  transition: all 0.3s ease;
}

footer .fab:hover,
footer .fas:hover {
  transform: scale(1.2);
  color: #3498db;
}

footer hr {
  border-color: #34495e;
  opacity: 0.3;
}

footer .badge {
  font-size: 0.8rem;
  padding: 0.5rem 0.8rem;
}

footer .border-top {
  border-color: #34495e !important;
}

footer .text-primary {
  color: #3498db !important;
}

/* Footer Animation */
footer {
  animation: slideInUp 0.8s ease-out;
}

@keyframes slideInUp {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Footer Links Hover Effect */
footer ul li a {
  position: relative;
  overflow: hidden;
}

footer ul li a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #3498db;
  transition: width 0.3s ease;
}

footer ul li a:hover::after {
  width: 100%;
}

/* Social Media Icons */
footer .d-flex a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(52, 152, 219, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

footer .d-flex a:hover {
  background: rgba(52, 152, 219, 0.2);
  transform: translateY(-3px);
}