/* ============================================================
   Hydro Synergy Coaching — Exercise Library Stylesheet
   ============================================================ */

/* Reusing existing design system tokens with enhancements */
:root {
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.1);
  --info: #0284c7;
  --info-bg: rgba(2, 132, 199, 0.1);
  --card-shadow: 0 10px 30px -5px rgba(10, 77, 140, 0.07), 0 2px 8px -2px rgba(10, 77, 140, 0.04);
  --card-hover-shadow: 0 20px 40px -10px rgba(10, 77, 140, 0.15), 0 4px 12px -2px rgba(10, 77, 140, 0.08);
}

/* Base Utility Overrides & Styles */
.exercise-body {
  background-color: var(--blue-50);
  min-height: 100vh;
}

/* Page Header */
.page-title-section {
  padding: 3rem 0 2rem;
  background: var(--blue-900);
  border-bottom: 4px solid var(--brand-green);
  color: var(--white);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  margin-bottom: 2.5rem;
  box-shadow: var(--shadow-md);
}

.page-title-section h1 {
  font-family: var(--font-display);
  color: var(--white);
  font-size: clamp(2rem, 4vw, 3rem);
}

/* Premium Statistics Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.stat-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  box-shadow: var(--card-shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--card-hover-shadow);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--brand-green);
}

.stat-card.stat-active::before { background: var(--success); }
.stat-card.stat-inactive::before { background: var(--warning); }
.stat-card.stat-categories::before { background: var(--aqua); }

.stat-value {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.2;
  margin: 0.5rem 0;
  font-family: var(--font-body);
}

.stat-label {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gray-400);
  font-weight: 600;
}

.stat-icon {
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 2.5rem;
  color: var(--blue-100);
  opacity: 0.7;
  pointer-events: none;
}

/* Filtering & Controls Panel */
.controls-card {
  background: var(--white);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  box-shadow: var(--card-shadow);
  margin-bottom: 2rem;
  border: 1px solid var(--gray-100);
}

.search-input-group {
  position: relative;
}

.search-input-group i {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-400);
}

.search-input-group .form-control {
  padding-left: 2.75rem;
  border-radius: 99px;
  border-color: var(--gray-200);
}

.filter-select {
  border-radius: 99px;
  border-color: var(--gray-200);
}

.view-toggle-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-600);
  transition: all var(--transition);
}

.view-toggle-btn.active, .view-toggle-btn:hover {
  background: var(--brand-green);
  color: var(--white);
  border-color: var(--brand-green);
}

/* Premium Exercise Card Grid */
.exercise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.exercise-card {
  background: var(--white);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--gray-100);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.exercise-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-hover-shadow);
}

.card-img-wrapper {
  position: relative;
  padding-top: 56.25%; /* 16:9 Aspect Ratio */
  background-color: var(--blue-900);
  overflow: hidden;
}

.card-img-wrapper img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.exercise-card:hover .card-img-wrapper img {
  transform: scale(1.05);
}

.card-badge-container {
  position: absolute;
  top: 1rem;
  left: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Custom Badges */
.badge-hydro {
  padding: 0.35em 0.8em;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 99px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.badge-difficulty-beginner {
  background-color: var(--success-bg);
  color: var(--success);
}

.badge-difficulty-intermediate {
  background-color: var(--warning-bg);
  color: var(--warning);
}

.badge-difficulty-advanced {
  background-color: var(--danger-bg);
  color: var(--danger);
}

.badge-status-active {
  background-color: var(--success);
  color: var(--white);
}

.badge-status-inactive {
  background-color: var(--gray-400);
  color: var(--white);
}

.card-content-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-title-text {
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.card-desc-text {
  font-size: 0.9rem;
  color: var(--gray-600);
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 4.8em; /* Approximate fallback */
  line-height: 1.6;
}

.tag-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1.25rem;
}

.tag-item {
  background: var(--blue-50);
  color: var(--blue-700);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
}

.card-action-bar {
  border-top: 1px solid var(--gray-100);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  background-color: var(--gray-50);
}

/* Responsive Custom Table */
.premium-table-wrapper {
  background: var(--white);
  border-radius: var(--radius-sm);
  box-shadow: var(--card-shadow);
  border: 1px solid var(--gray-100);
  overflow: hidden;
  margin-bottom: 2.5rem;
}

.premium-table {
  width: 100%;
  margin-bottom: 0;
  vertical-align: middle;
  border-collapse: collapse;
}

.premium-table th {
  background-color: var(--blue-900);
  border-bottom: 3px solid var(--brand-green) !important;
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 1.25rem 1.5rem;
}

.premium-table td {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--gray-100);
  font-size: 0.95rem;
  color: var(--gray-600);
}

.premium-table tr:last-child td {
  border-bottom: none;
}

.table-thumbnail {
  width: 60px;
  height: 45px;
  object-fit: cover;
  border-radius: 6px;
  box-shadow: var(--shadow-sm);
}

/* Custom Modals styling */
.modal-content-custom {
  border-radius: var(--radius-md);
  border: none;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.modal-header-custom {
  background: var(--blue-900);
  border-bottom: 3px solid var(--brand-green);
  color: var(--white);
  padding: 1.5rem 2rem;
}

.modal-header-custom .modal-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--white);
}

.modal-header-custom .btn-close {
  filter: invert(1) grayscale(1) brightness(2);
}

.modal-body-custom {
  padding: 2rem;
}

.modal-footer-custom {
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--gray-100);
  background-color: var(--gray-50);
}

/* Premium Drag & Drop Area */
.drag-drop-zone {
  border: 2px dashed var(--brand-green);
  border-radius: var(--radius-sm);
  padding: 2rem;
  text-align: center;
  background: var(--brand-green-light);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}

.drag-drop-zone:hover, .drag-drop-zone.dragover {
  background: var(--white);
  border-color: var(--brand-green);
}

.drag-drop-zone i {
  font-size: 2.5rem;
  color: var(--brand-green);
  margin-bottom: 1rem;
}

.drag-drop-zone input[type="file"] {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.file-preview-info {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--brand-green-hover);
}

/* Toast Notifications styling */
.toast-container-custom {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 1060;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast-custom {
  width: 320px;
  background: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  box-shadow: 0 20px 48px rgba(10, 77, 140, 0.15);
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  animation: slideIn var(--transition) forwards;
}

.toast-custom.toast-success {
  border-left: 5px solid var(--brand-green);
}

.toast-custom.toast-error {
  border-left: 5px solid var(--danger);
}

@keyframes slideIn {
  from { transform: translateX(120%); }
  to { transform: translateX(0); }
}

/* Custom Pagination styles */
.pagination-hydro {
  display: flex;
  justify-content: center;
  gap: 0.35rem;
  margin-top: 2rem;
}

.pagination-hydro .page-link {
  color: var(--blue-800);
  border: 1px solid var(--gray-200);
  transition: all var(--transition);
  font-weight: 600;
}

.pagination-hydro .page-item.active .page-link {
  background: var(--brand-green);
  border-color: var(--brand-green);
  color: var(--white);
}

.pagination-hydro .page-link:hover {
  background: var(--brand-green-light);
  color: var(--brand-green-hover);
}

/* Single View Helpers */
.video-preview-container {
  position: relative;
  padding-top: 56.25%;
  background: #000;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.video-preview-container video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.pdf-preview-container {
  height: 500px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  background-color: var(--gray-50);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.pdf-preview-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Premium Form Focus Indicators */
.form-control:focus, .form-select:focus {
  border-color: var(--brand-green) !important;
  box-shadow: 0 0 0 0.25rem var(--brand-green-rgba) !important;
}

/* Custom Unblended Outline Action Buttons */
.btn-outline-custom-blue {
  color: var(--blue-800);
  border: 1px solid var(--blue-800) !important;
  background: transparent;
  transition: all var(--transition);
}
.btn-outline-custom-blue:hover {
  background: var(--blue-800) !important;
  color: var(--white) !important;
}

.btn-outline-custom-green {
  color: var(--brand-green);
  border: 1px solid var(--brand-green) !important;
  background: transparent;
  transition: all var(--transition);
}
.btn-outline-custom-green:hover {
  background: var(--brand-green) !important;
  color: var(--white) !important;
}