/* ==========================================================================
   DASHBOARD & NOTAS SPECIFIC STYLES
   ========================================================================== */

/* Stat Cards Grid (Igual a Next-Project) */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--neutral-200);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.stat-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon-wrapper svg {
  width: 24px;
  height: 24px;
}

.stat-icon-blue {
  background-color: var(--primary-100);
  color: var(--primary-600);
}

.stat-icon-green {
  background-color: var(--success-100);
  color: var(--success-600);
}

.stat-icon-purple {
  background-color: var(--purple-100);
  color: var(--purple-600);
}

.stat-icon-orange {
  background-color: var(--warning-100);
  color: var(--warning-600);
}

.stat-content {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--neutral-900);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--neutral-500);
  margin-top: 2px;
}

/* QR Projection Modal */
.qr-modal-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 32px 24px;
}

.qr-canvas-container {
  background: #ffffff;
  padding: 16px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--primary-100);
  box-shadow: var(--shadow-card);
  margin: 20px 0;
}

.qr-instruction {
  font-size: 0.95rem;
  color: var(--neutral-600);
  max-width: 360px;
}

.qr-link-box {
  background-color: var(--neutral-100);
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius-md);
  padding: 8px 16px;
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--neutral-700);
  margin-top: 12px;
  word-break: break-all;
  user-select: all;
}

/* Grade Entry Grid Table */
.grade-input {
  width: 64px;
  text-align: center;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--neutral-300);
  font-weight: 600;
  outline: none;
  transition: border-color var(--transition-fast);
}

.grade-input:focus {
  border-color: var(--primary-500);
  background-color: var(--primary-50);
}

.grade-input.pass {
  color: var(--success-700);
  border-color: var(--success-300);
  background-color: var(--success-50);
}

.grade-input.fail {
  color: var(--danger-700);
  border-color: var(--danger-300);
  background-color: var(--danger-50);
}

.promedio-cell {
  font-weight: 700;
  font-size: 0.95rem;
}

.promedio-cell.pass {
  color: var(--success-600);
}

.promedio-cell.fail {
  color: var(--danger-600);
}

/* Enrolment Form Page (Student Side) */
.student-enroll-body {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--neutral-900) 0%, #1e293b 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.student-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
}

.student-card-header {
  text-align: center;
  margin-bottom: 24px;
}

.student-card-header h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--neutral-900);
}

.student-card-header p {
  font-size: 0.85rem;
  color: var(--neutral-500);
  margin-top: 4px;
}

/* ==========================================================================
   COURSES LANDING PAGE (Igual a la imagen de Next-Project)
   ========================================================================== */
.courses-landing-view {
  width: 100%;
  max-width: 1140px;
  margin: 36px auto;
  padding: 0 24px;
}

.courses-landing-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.courses-landing-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.4px;
}

.courses-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

@media (max-width: 768px) {
  .courses-cards-grid {
    grid-template-columns: 1fr;
  }
}

.class-card {
  background: #ffffff;
  border-radius: 12px;
  border: 1px solid var(--neutral-200);
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-fast);
  min-height: 190px;
}

.class-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -4px rgba(0, 0, 0, 0.08);
  border-color: var(--primary-200);
}

/* Green Completed Card Theme (igual a la imagen de referencia) */
.class-card.completed {
  background-color: #f0fdf4;
  border-color: #b7e4c7;
}

.class-card.completed:hover {
  border-color: #34d399;
  box-shadow: 0 10px 20px -5px rgba(34, 197, 94, 0.15);
}

.class-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.class-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.35;
  margin-bottom: 0;
}

.class-card-desc {
  font-size: 0.86rem;
  color: #475569;
  line-height: 1.5;
  word-break: break-word;
}

/* Progress Bar on Card */
.card-progress-track {
  height: 4px;
  background-color: #e2e8f0;
  border-radius: 4px;
  width: 100%;
  margin: 16px 0 14px 0;
  overflow: hidden;
}

.card-progress-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.3s ease;
}

.card-progress-fill.green {
  background-color: #22c55e;
}

.card-progress-fill.blue {
  background-color: #2563eb;
}

/* Status Badges (Pills) */
.status-badge-green {
  background-color: #e6f4ea;
  color: #137333;
  border: 1px solid #a8e0b7;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.status-badge-blue {
  background-color: #e8f0fe;
  color: #1a73e8;
  border: 1px solid #aecbfa;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.class-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(226, 232, 240, 0.7);
  padding-top: 12px;
  margin-top: auto;
}

.class-card-date {
  font-size: 0.8rem;
  color: #64748b;
  font-weight: 500;
}

.badge-role-admin {
  background-color: #dbeafe;
  color: #1d4ed8;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
}

/* ==========================================================================
   EXCEL GRADEBOOK TABLE STYLES (Igual a la imagen de Excel del usuario)
   ========================================================================== */
.excel-table-container {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--neutral-300);
  box-shadow: var(--shadow-card);
  overflow-x: auto;
}

.excel-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  font-family: var(--font-family);
  background-color: #ffffff;
}

.excel-table th {
  background-color: #000000;
  color: #ffffff;
  font-weight: 700;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 10px 14px;
  border: 1px solid #333333;
  text-align: center;
  white-space: nowrap;
}

.excel-table td {
  padding: 6px 10px;
  border: 1px solid #d0d7de;
  color: #0f172a;
  vertical-align: middle;
}

/* Pastel Group Row Themes (Coincide con los grupos de Excel) */
.group-color-1 { background-color: #fce7d6 !important; } /* Naranja / Melocotón */
.group-color-2 { background-color: #e2efda !important; } /* Verde Claro */
.group-color-3 { background-color: #e7e6e6 !important; } /* Gris Suave */
.group-color-4 { background-color: #c6d9f1 !important; } /* Azul Claro */
.group-color-5 { background-color: #e1d5e7 !important; } /* Morado Pastel */
.group-color-6 { background-color: #fff2cc !important; } /* Amarillo Pastel */
.group-color-7 { background-color: #fce4d6 !important; }
.group-color-8 { background-color: #d9e1f2 !important; }

.excel-input {
  width: 100%;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 4px;
  padding: 4px 6px;
  font-weight: 600;
  font-size: 0.88rem;
  text-align: center;
  outline: none;
  transition: all 0.15s ease;
}

.excel-input:hover {
  border-color: #cbd5e1;
  background: rgba(255, 255, 255, 0.7);
}

.excel-input:focus {
  border-color: #2563eb;
  background: #ffffff;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}


/* ==========================================================================
   DOCUMENTOS DEL CURSO — Styles
   ========================================================================== */

/* Drop Zone */
.doc-drop-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 40px 24px;
  background: #ffffff;
  border: 2px dashed var(--neutral-300);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  text-align: center;
  user-select: none;
}

.doc-drop-zone:hover,
.doc-drop-zone:focus-visible {
  border-color: var(--primary-500);
  background: var(--primary-50);
  outline: none;
}

.doc-drop-zone.drag-over {
  border-color: var(--primary-600);
  background: var(--primary-50);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.doc-drop-icon {
  width: 52px;
  height: 52px;
  background: var(--primary-100);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-600);
}

.doc-drop-icon svg {
  width: 28px;
  height: 28px;
}

.doc-drop-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--neutral-700);
}

.doc-drop-title span {
  color: var(--primary-600);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.doc-drop-hint {
  font-size: 0.8rem;
  color: var(--neutral-400);
}

/* Upload Progress */
.doc-progress-wrap {
  margin-top: 16px;
  background: #ffffff;
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.doc-progress-track {
  height: 6px;
  background: var(--neutral-100);
  border-radius: 99px;
  overflow: hidden;
}

.doc-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-500), var(--primary-600));
  border-radius: 99px;
  transition: width 0.2s ease;
  width: 0%;
}

.doc-progress-label {
  font-size: 0.8rem;
  color: var(--neutral-500);
  font-weight: 500;
}

/* Documents Grid */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 18px;
}

.docs-loading {
  color: var(--neutral-400);
  font-size: 0.88rem;
  padding: 24px 0;
}

/* Document Card */
.doc-card {
  background: #ffffff;
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.doc-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* Preview area */
.doc-card-preview {
  height: 140px;
  background: var(--neutral-50);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid var(--neutral-100);
}

.doc-preview-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* PDF icon placeholder */
.doc-icon-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--danger-600);
}

.doc-icon-wrap svg {
  width: 44px;
  height: 44px;
}

.doc-icon-wrap span {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--danger-600);
  background: var(--danger-50);
  padding: 2px 8px;
  border-radius: 4px;
}

/* Card body */
.doc-card-body {
  padding: 12px 14px 8px;
  flex: 1;
}

.doc-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--neutral-800);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}

.doc-meta {
  font-size: 0.72rem;
  color: var(--neutral-400);
}

/* Card action buttons */
.doc-card-actions {
  display: flex;
  gap: 0;
  border-top: 1px solid var(--neutral-100);
}

.btn-doc-action {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 9px 8px;
  font-size: 0.78rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  text-decoration: none;
  font-family: var(--font-family);
}

.btn-doc-action svg {
  width: 14px;
  height: 14px;
}

.btn-doc-view {
  background: transparent;
  color: var(--primary-600);
  border-right: 1px solid var(--neutral-100);
}

.btn-doc-view:hover {
  background: var(--primary-50);
}

.btn-doc-delete {
  background: transparent;
  color: var(--neutral-500);
}

.btn-doc-delete:hover {
  background: var(--danger-50);
  color: var(--danger-600);
}

/* Empty State */
.docs-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 56px 24px;
  text-align: center;
  color: var(--neutral-400);
}

.docs-empty-state svg {
  width: 52px;
  height: 52px;
  color: var(--neutral-300);
}

.docs-empty-state p {
  font-size: 0.9rem;
  max-width: 300px;
}

/* Toast Notifications */
.doc-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  max-width: 380px;
}

.doc-toast.show {
  opacity: 1;
  transform: translateY(0);
}

.doc-toast-success {
  background: #ffffff;
  border-left: 4px solid var(--success-500);
  color: var(--neutral-800);
}

.doc-toast-danger {
  background: #ffffff;
  border-left: 4px solid var(--danger-500);
  color: var(--neutral-800);
}