:root {
  --primary-color: #4361ee;
  --primary-hover: #3a56d4;
  --secondary-color: #3f37c9;
  --success-color: #4cc9f0;
  --info-color: #4895ef;
  --warning-color: #f72585;
  --danger-color: #e63946;
  --light-color: #f8f9fa;
  --dark-color: #212529;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;
}

body {
  font-family: 'Roboto', sans-serif;
  background-color: #f0f2f5;
  color: var(--gray-800);
  line-height: 1.6;
}

/* Navbar styling */
.navbar {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 0.8rem 1rem;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: 0.5px;
}

.navbar-dark .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  padding: 0.5rem 1rem;
  transition: all 0.3s ease;
  border-radius: 4px;
}

.navbar-dark .navbar-nav .nav-link:hover {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.1);
}

/* Card styling */
.card {
  border: none;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
  margin-bottom: 24px;
}

.card:hover {
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.card-header {
  background-color: #fff;
  border-bottom: 1px solid var(--gray-200);
  padding: 1.2rem 1.5rem;
  font-weight: 600;
}

.card-body {
  padding: 1.5rem;
}

/* Button styling */
.btn {
  font-weight: 500;
  padding: 0.5rem 1.2rem;
  border-radius: 6px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

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

.btn-primary:hover {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: 0 4px 8px rgba(67, 97, 238, 0.3);
}

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

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

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

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

.btn-sm {
  padding: 0.25rem 0.7rem;
  font-size: 0.875rem;
}

/* Table styling */
.table {
  border-collapse: separate;
  border-spacing: 0;
}

.table th {
  font-weight: 600;
  color: var(--gray-700);
  background-color: var(--gray-100);
  border-top: none;
  padding: 1rem;
}

.table td {
  padding: 1rem;
  vertical-align: middle;
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: rgba(0, 0, 0, 0.01);
}

.table-hover tbody tr:hover {
  background-color: rgba(67, 97, 238, 0.03);
}

/* Form controls */
.form-control, .form-select {
  border-radius: 6px;
  padding: 0.6rem 1rem;
  border: 1px solid var(--gray-300);
  transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.25rem rgba(67, 97, 238, 0.15);
}

.form-label {
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 0.5rem;
}

/* Badge styling */
.badge {
  font-weight: 500;
  padding: 0.5em 0.8em;
  border-radius: 6px;
}

/* Dashboard cards */
.card.bg-primary, .card.bg-success, .card.bg-info, .card.bg-warning {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: white;
}

.card.bg-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)) !important;
}

.card.bg-success {
  background: linear-gradient(135deg, #4cc9f0, #4895ef) !important;
}

.card.bg-info {
  background: linear-gradient(135deg, #4895ef, #3f37c9) !important;
}

.card.bg-warning {
  background: linear-gradient(135deg, #f72585, #b5179e) !important;
}

.card.bg-primary:hover, .card.bg-success:hover, .card.bg-info:hover, .card.bg-warning:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 20px rgba(0, 0, 0, 0.15);
}

.card.bg-primary .card-header, .card.bg-success .card-header, 
.card.bg-info .card-header, .card.bg-warning .card-header {
  background-color: rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: white;
}

/* Video player container */
.ratio-16x9 {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

/* Footer styling */
footer {
  background-color: #fff;
  border-top: 1px solid var(--gray-200);
  padding: 1.5rem 0;
  margin-top: 3rem;
}

/* Alertas flutuantes */
#floating-alerts {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  max-width: 350px;
}

#floating-alerts .alert {
  margin-bottom: 10px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  border: none;
  border-left: 4px solid;
  animation: slideIn 0.5s;
}

#floating-alerts .alert-success {
  border-left-color: var(--success-color);
  background-color: rgba(76, 201, 240, 0.1);
}

#floating-alerts .alert-danger {
  border-left-color: var(--danger-color);
  background-color: rgba(230, 57, 70, 0.1);
}

#floating-alerts .alert-warning {
  border-left-color: var(--warning-color);
  background-color: rgba(247, 37, 133, 0.1);
}

#floating-alerts .alert-info {
  border-left-color: var(--info-color);
  background-color: rgba(72, 149, 239, 0.1);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Pagination styling */
.pagination {
  margin-top: 1.5rem;
}

.page-item:first-child .page-link {
  border-top-left-radius: 6px;
  border-bottom-left-radius: 6px;
}

.page-item:last-child .page-link {
  border-top-right-radius: 6px;
  border-bottom-right-radius: 6px;
}

.page-link {
  color: var(--primary-color);
  padding: 0.5rem 1rem;
  transition: all 0.3s ease;
}

.page-item.active .page-link {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

/* Filtros card */
.card.mb-4 .card-header {
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

/* Animações para elementos interativos */
.btn, .nav-link, .form-control, .card {
  transition: all 0.3s ease;
}

/* Estilo para inputs com ícones */
.input-group-text {
  background-color: #fff;
  border-right: none;
}

.input-group .form-control {
  border-left: none;
}

.input-group .form-control:focus + .input-group-text {
  border-color: var(--primary-color);
}

/* Estilo para tabelas responsivas */
.table-responsive {
  border-radius: 12px;
  overflow: hidden;
}