/* Reset body padding since we removed the sidebar */
body {
  padding-left: 0 !important;
  padding-top: 0 !important;
}

/* Material Design Color System */
:root {
  --primary: #3F51B5; /* Indigo */
  --primary-light: #7986CB;
  --secondary: #9E9E9E; /* Grey */
  --success: #4CAF50; /* Green */
  --warning: #FFC107; /* Amber */
  --danger: #F44336; /* Red */
  --info: #2196F3; /* Blue */
  --background: #F5F5F5; /* Grey 100 */
  --card-bg: #FFFFFF;
  --text-primary: #212121; /* Grey 900 */
  --text-secondary: #757575; /* Grey 600 */
  --border-color: #BDBDBD; /* Grey 400 */
  --hover-bg: #E8EAF6; /* Indigo 50 */
  --card-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Layout Styles */
body {
  background-color: var(--background);
  min-height: 100vh;
  padding-bottom: 80px;
  position: relative;
  color: var(--text-primary);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Modern Card Styles */
.content-card {
  background-color: var(--card-bg);
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
  padding: 20px;
  margin-bottom: 20px;
  transition: var(--transition);
}

.content-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Bottom Navigation */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: white;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

.nav-container {
  display: flex;
  overflow-x: auto;
  padding: 10px;
  justify-content: space-around;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--secondary);
  text-decoration: none;
  padding: 8px;
  font-size: 0.8rem;
  transition: all 0.2s;
  border-radius: 5px;
  min-width: 60px;
}

.nav-item i {
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.nav-item.active {
  color: var(--primary);
  background-color: var(--hover-bg);
  transform: scale(1.1);
}

.nav-item:hover:not(.active) {
  background-color: rgba(0, 0, 0, 0.04);
}

/* Content Section Styles */
.content-section {
  display: none;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.content-section.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* Summary Cards */
.summary-card {
  background-color: var(--card-bg);
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.summary-card .card-header {
  background-color: var(--hover-bg);
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
}

.card-body {
  padding: 1.5rem;
}

/* Progress Bars */
.progress {
  height: 12px;
  background-color: #E8EAF6;
  border-radius: 24px;
  overflow: hidden;
}

.progress-bar {
  border-radius: 24px;
  transition: var(--transition);
}

/* Add this to replace inline style attributes */
.progress-bar[style] {
  width: var(--progress-width, 0%);
}

/* Tables */
.table {
  background: #FFFFFF;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  border-collapse: separate;
  border-spacing: 0;
}

.table thead th {
  background: var(--hover-bg);
  border: none;
  padding: 1rem 1.5rem;
  font-weight: 600;
  color: var(--primary);
}

.table tbody td {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  transition: var(--transition);
}

.table tbody tr:hover td {
  background-color: var(--hover-bg);
}

/* Status Badges */
.status-badge {
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  display: inline-block;
}

.bg-success, .completed, .leave-approved {
  background-color: var(--success) !important;
  color: white;
}

.bg-warning, .ongoing, .leave-pending {
  background-color: var(--warning) !important;
  color: #212121; /* Material design suggests dark text on light colors like Amber */
}

.bg-danger, .leave-rejected {
  background-color: var(--danger) !important;
  color: white;
}

.bg-info, .upcoming {
  background-color: var(--info) !important;
  color: white;
}

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

/* Responsive Design */
@media (max-width: 768px) {
  .container-fluid {
    padding: 0.5rem;
  }

  .content-card {
    padding: 16px;
  }

  .summary-card {
    margin-bottom: 1rem;
  }

  .card-header {
    padding: 1rem;
  }

  .card-body {
    padding: 1rem;
  }

  .table {
    font-size: 0.875rem;
  }

  .table th,
  .table td {
    padding: 0.75rem;
    white-space: nowrap;
  }

  .table-responsive {
    margin: 0 -0.5rem;
  }

  .row {
    margin-left: -0.5rem;
    margin-right: -0.5rem;
  }

  .col-12, .col-md-6 {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }

  .bottom-nav {
    padding: 0.5rem;
  }

  .nav-item {
    padding: 0.375rem;
  }

  .nav-item i {
    font-size: 1.25rem;
  }

  .nav-item span {
    display: none;
  }

  .nav-item.active::after {
    bottom: -0.5rem;
  }

  /* Welcome Section */
  .welcome-section img {
    width: 60px !important;
    height: 60px !important;
  }

  .welcome-section h2 {
    font-size: 1.5rem;
  }

  /* Course Cards */
  .course-card {
    margin-bottom: 1rem;
  }

  .course-card .card-title {
    font-size: 1.1rem;
  }

  /* Subject Cards */
  .subject-card {
    margin-bottom: 1rem;
  }

  /* Feedback Cards */
  .feedback-card {
    margin-bottom: 1rem;
  }

  /* Notice Cards */
  .notice-card {
    margin-bottom: 1rem;
  }

  /* Profile Section */
  .profile-image {
    width: 120px !important;
    height: 120px !important;
  }

  /* Modal Adjustments */
  .modal-dialog {
    margin: 0.5rem;
  }

  .modal-body {
    padding: 1rem;
  }

  /* Form Elements */
  .form-control,
  .form-select {
    font-size: 0.875rem;
  }

  .btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
  }

  /* Rating Stars */
  .rating-container .fa-star {
    font-size: 1.25rem;
  }

  .nav-item {
    min-width: auto;
  }
}

/* Small Mobile Devices */
@media (max-width: 480px) {
  .nav-container {
    padding: 0 0.5rem;
  }

  .nav-item {
    padding: 0.25rem;
  }

  .nav-item i {
    font-size: 1.1rem;
  }

  .nav-item span {
    font-size: 0.65rem;
  }

  .content-card {
    padding: 0.75rem;
  }

  .card-header {
    padding: 0.75rem;
  }

  .card-body {
    padding: 0.75rem;
  }

  .table th,
  .table td {
    padding: 0.5rem;
  }

  .status-badge {
    padding: 0.2rem 0.5rem;
    font-size: 0.75rem;
  }

  .btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
  }
}

/* Landscape Mode */
@media (max-height: 500px) and (orientation: landscape) {
  .bottom-nav {
    position: static;
    margin-top: 1rem;
  }

  body {
    padding-bottom: 0;
  }

  .content-card {
    margin-bottom: 1rem;
  }
}

/* High-DPI Screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .content-card {
    box-shadow: 0 5px 10px -3px rgba(0, 0, 0, 0.1);
  }
}

/* Print Styles */
@media print {
  .bottom-nav,
  .btn-primary,
  .modal,
  .modal-backdrop {
    display: none !important;
  }

  .content-card {
    box-shadow: none;
    border: 1px solid #ddd;
  }

  .table {
    box-shadow: none;
  }
}

/* Modal styles */
.modal {
  z-index: 1050 !important;
}

.modal-backdrop {
  z-index: 1040 !important;
}

.modal-content {
  border-radius: 8px !important;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1) !important;
}

.modal-header {
  border-bottom: 1px solid #e5e7eb;
  padding: 1rem 1.5rem;
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  border-top: 1px solid #e5e7eb;
  padding: 1rem 1.5rem;
}

/* Navigation enhanced styles */
.nav-item {
  transition: transform 0.2s ease-in-out;
}

.content-section {
  transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
  opacity: 0;
  transform: translateY(20px);
}

.content-section.active {
  opacity: 1;
  transform: translateY(0);
}

/* Improve active state visibility */
.nav-item.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-item.active i {
  transform: scale(1.1);
}

/* Add ripple effect for touch devices */
.nav-item {
  position: relative;
  overflow: hidden;
}

.nav-item::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  background: rgba(79, 70, 229, 0.3);
  opacity: 0;
  border-radius: 100%;
  transform: scale(1, 1) translate(-50%);
  transform-origin: 50% 50%;
}

.nav-item:active::after {
  animation: ripple 0.6s ease-out;
}

@keyframes ripple {
  0% {
    transform: scale(0, 0);
    opacity: 0.5;
  }
  100% {
    transform: scale(100, 100);
    opacity: 0;
  }
}

/* Star Rating Styles */
.rating-container .form-check-label {
  cursor: pointer;
  padding: 0.25rem;
}

.rating-container .fa-star,
.rating-container .fa-star-half-alt {
  color: #f8d74c;
}

/* Profile Images */
.profile-image-small {
  width: 80px;
  height: 80px;
  object-fit: cover;
}

.profile-image-large {
  width: 200px;
  height: 200px;
  object-fit: cover;
}

/* Add notification toast styles if they don't already exist */
.notification-toast {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  min-width: 250px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  border-radius: 4px;
}

/* Welcome Section */
.welcome-section {
  background: linear-gradient(to right, #4338ca, #6366f1);
  color: white;
  padding: 20px;
}

/* Schedule styling */
.schedule-item {
  padding: 12px;
  border-radius: 6px;
  margin-bottom: 10px;
  background-color: #f8f9fa;
  border-left: 4px solid var(--primary);
}

/* Rating stars styling */
.rating-stars {
  color: #FFD700;
}

/* Custom tabs styling */
.feedback-tabs {
  border-bottom: 2px solid #e9ecef;
  margin-bottom: 1.5rem;
}

.feedback-tab-btn {
  padding: 10px 20px;
  cursor: pointer;
  border-radius: 4px;
  transition: var(--transition);
  border: 1px solid var(--border-color);
  background-color: white;
  color: var(--text-primary);
  text-align: center;
  flex: 1;
}

.feedback-tab-btn.active {
  background-color: var(--primary);
  color: white;
  border-color: var(--primary);
}

.feedback-tab-btn:hover:not(.active) {
  background-color: var(--hover-bg);
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

/* Star rating styling */
.rating-container .form-check-label i.fas {
  color: #FFD700;
}

/* Custom smaller scrollbar styling */
.activity-scroll::-webkit-scrollbar {
  width: 4px;
}

.activity-scroll::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 10px;
}

.activity-scroll::-webkit-scrollbar-thumb {
  background: #ccc;
  border-radius: 10px;
}

.activity-scroll::-webkit-scrollbar-thumb:hover {
  background: #999;
}

/* Firefox scrollbar */
.activity-scroll {
  scrollbar-width: thin;
  scrollbar-color: #ccc #f1f1f1;
}

@media (min-width: 992px) {
  .container-fluid {
    padding-bottom: 60px;
  }
}

/* Custom Tab System */
.custom-tabs {
  display: flex;
  border-bottom: 1px solid #dee2e6;
  margin-bottom: 1rem;
}

.custom-tab-btn {
  padding: 0.5rem 1rem;
  margin-bottom: -1px;
  background: none;
  border: 1px solid transparent;
  border-top-left-radius: 0.25rem;
  border-top-right-radius: 0.25rem;
  cursor: pointer;
  color: var(--secondary);
}

.custom-tab-btn.active {
  color: var(--primary);
  background-color: #fff;
  border-color: #dee2e6 #dee2e6 #fff;
}

.custom-tab-content {
  display: none;
}

.custom-tab-content.active {
  display: block;
}

/* Fix for profile tab visibility */
#profileSection.active .tab-pane.active {
  display: block !important;
}

#profileSection.active .nav-tabs .nav-link.active {
  color: var(--primary);
  border-color: var(--primary);
  background-color: #fff;
}

/* Action buttons enhanced */
.action-button {
  border-radius: 50px;
  padding: 10px 20px;
  font-weight: 500;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
}

.action-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.action-button i {
  margin-right: 8px;
}