/**
 * editar-estudiante-estilos.css
 * Estilos para el módulo de edición de estudiantes
 * 
 * Proporciona estilos para:
 * - Validación (valid/invalid)
 * - Indicadores de cambios
 * - Modo edición/vista
 * - Spinner de carga
 * - Mensajes de error
 */

/* ===== CAMPOS DE FORMULARIO ===== */

.form-group {
  position: relative;
  margin-bottom: 1rem;
}

.form-group label {
  font-weight: 600;
  color: #444;
  margin-bottom: 0.5rem;
  display: block;
}

/* Validación en tiempo real */
.form-control.is-valid {
  border-color: #28a745;
  background-color: #f0fdf4;
  box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

.form-control.is-invalid {
  border-color: #dc3545;
  background-color: #fdf8f8;
  box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.form-control.is-valid:focus {
  border-color: #28a745;
  box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.5);
}

.form-control.is-invalid:focus {
  border-color: #dc3545;
  box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.5);
}

/* Mensajes de error */
.error-message {
  display: none;
  color: #dc3545;
  font-size: 0.875rem;
  margin-top: 0.25rem;
  animation: slideInDown 0.3s ease-in-out;
}

.error-message.show {
  display: block;
}

/* Indicador requerido */
.form-group label .required {
  color: #dc3545;
  margin-left: 0.25rem;
}

/* ===== INDICADORES DE CAMBIOS ===== */

.cambios-no-guardados,
#indicador-cambios {
  display: none;
  padding: 0.75rem 1rem;
  background-color: #fff3cd;
  border: 1px solid #ffc107;
  border-radius: 4px;
  color: #856404;
  margin-bottom: 1rem;
  animation: slideInDown 0.3s ease-in-out;
}

.cambios-no-guardados.alert-warning {
  display: block;
}

.cambios-no-guardados strong {
  font-weight: 600;
}

/* Indicador de campo modificado */
.field-modified {
  position: relative;
}

.field-modified::after {
  content: "●";
  position: absolute;
  right: 0.5rem;
  top: 2.5rem;
  color: #ffc107;
  font-size: 0.75rem;
  font-weight: bold;
}

/* ===== MODO VISTA VS EDICIÓN ===== */

.form-editar-alumno-contrato {
  transition: opacity 0.3s ease-in-out;
}

.form-editar-alumno-contrato.modo-vista .form-control,
.form-editar-alumno-contrato.modo-vista .form-select {
  background-color: #f5f5f5;
  cursor: not-allowed;
  opacity: 0.7;
}

.form-editar-alumno-contrato.modo-edicion .form-control,
.form-editar-alumno-contrato.modo-edicion .form-select {
  background-color: #fff;
  cursor: text;
  opacity: 1;
}

/* ===== BOTONES ===== */

.btn-editar-alumno,
#editar-alumno-send {
  transition: all 0.3s ease-in-out;
}

.btn-editar-alumno:disabled,
#editar-alumno-send:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-editar-alumno.saving,
#editar-alumno-send.saving {
  position: relative;
  pointer-events: none;
}

.btn-editar-alumno.saving::after,
#editar-alumno-send.saving::after {
  content: "";
  position: absolute;
  width: 1rem;
  height: 1rem;
  top: 50%;
  right: 1rem;
  margin-top: -0.5rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 0.8s linear infinite;
}

/* Botón Cancelar */
.btn-cancelar-editar,
#cancelar-editar-alumno {
  display: none;
  margin-left: 0.5rem;
}

.form-editar-alumno-contrato.modo-edicion ~ .btn-cancelar-editar,
.form-editar-alumno-contrato.modo-edicion ~ #cancelar-editar-alumno {
  display: inline-block;
}

/* ===== SPINNER DE CARGA ===== */

.spinner-editar-alumno,
#loading-spinner-editar {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 9999;
}

.spinner-editar-alumno {
  text-align: center;
}

.spinner-editar-alumno .spinner,
#loading-spinner-editar .spinner {
  border: 4px solid rgba(0, 176, 240, 0.1);
  border-radius: 50%;
  border-top: 4px solid #00b0f0;
  width: 40px;
  height: 40px;
  animation: spin 0.8s linear infinite;
}

.cargando {
  opacity: 0.5;
  pointer-events: none;
}

/* ===== ANIMACIONES ===== */

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* ===== NOTIFICACIONES ===== */

.alert-editar-estudiante {
  margin-bottom: 1rem;
  animation: slideInDown 0.3s ease-in-out;
}

.alert-info-editar {
  background-color: #d1ecf1;
  border-color: #bee5eb;
  color: #0c5460;
}

.alert-success-editar {
  background-color: #d4edda;
  border-color: #c3e6cb;
  color: #155724;
}

.alert-warning-editar {
  background-color: #fff3cd;
  border-color: #ffeeba;
  color: #856404;
}

.alert-danger-editar {
  background-color: #f8d7da;
  border-color: #f5c6cb;
  color: #721c24;
}

/* ===== RESUMEN DE CAMBIOS ===== */

.cambios-resumen {
  background-color: #f8f9fa;
  border: 1px solid #dee2e6;
  border-radius: 4px;
  padding: 1rem;
  margin: 1rem 0;
}

.cambios-resumen-titulo {
  font-weight: 600;
  color: #444;
  margin-bottom: 0.5rem;
}

.cambios-resumen-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid #e9ecef;
  font-size: 0.875rem;
}

.cambios-resumen-item:last-child {
  border-bottom: none;
}

.cambios-resumen-campo {
  font-weight: 500;
  color: #495057;
}

.cambios-resumen-valor-anterior {
  color: #dc3545;
  text-decoration: line-through;
}

.cambios-resumen-flecha {
  color: #6c757d;
  margin: 0 0.5rem;
  font-weight: bold;
}

.cambios-resumen-valor-nuevo {
  color: #28a745;
  font-weight: 600;
}

/* ===== ESTADO DEL FORMULARIO ===== */

.form-estado-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-left: 0.5rem;
}

.form-estado-badge.vista {
  background-color: #d1ecf1;
  color: #0c5460;
}

.form-estado-badge.edicion {
  background-color: #fff3cd;
  color: #856404;
}

/* ===== RESPONSIVE ===== */

@media (max-width: 768px) {
  .error-message {
    font-size: 0.75rem;
  }

  .cambios-resumen-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .cambios-resumen-flecha {
    margin: 0.25rem 0;
  }

  .form-group {
    margin-bottom: 0.75rem;
  }

  .btn-editar-alumno {
    width: 100%;
  }

  .btn-cancelar-editar {
    width: 100%;
    margin-left: 0;
    margin-top: 0.5rem;
  }
}

/* ===== PRINT / EXPORTACIÓN ===== */

@media print {
  .btn-editar-alumno,
  .btn-cancelar-editar,
  .error-message,
  .cambios-no-guardados,
  .spinner-editar-alumno {
    display: none !important;
  }

  .form-control,
  .form-select {
    border: 1px solid #000 !important;
    background-color: #fff !important;
  }
}