diff --git a/ver_formulario_enviado.php b/ver_formulario_enviado.php
index 067dcb9..7422ab5 100644
--- a/ver_formulario_enviado.php
+++ b/ver_formulario_enviado.php
@@ -705,14 +705,20 @@ function _addExamWizardHtml(string $cid): string {
     <!-- Panel de ciclos — renderizado dinámicamente por JS al seleccionar tipo de examen -->
     <div class="mp-cfg-overlay d-none" id="mp-cfg-overlay">
         <div class="mp-cfg-card">
-            <div class="mp-cfg-head d-flex align-items-center justify-content-between">
+            <div class="mp-cfg-head d-flex align-items-center justify-content-between gap-2">
                 <span id="mp-cfg-title"><i class="fas fa-sliders-h me-2"></i>Configurar protocolo de tomas</span>
-                <button id="mp-cfg-todas" type="button"
-                        title="Usar todas las tomas sin configurar"
-                        style="background:rgba(255,255,255,.2);border:none;color:#fff;border-radius:6px;
-                               padding:3px 10px;font-size:.8rem;cursor:pointer;white-space:nowrap">
-                    <i class="fas fa-forward me-1"></i>Usar todas
-                </button>
+                <div class="d-flex align-items-center gap-2">
+                    <button id="mp-cfg-todas" type="button"
+                            title="Usar todas las tomas sin configurar"
+                            style="background:rgba(255,255,255,.2);border:none;color:#fff;border-radius:6px;
+                                   padding:3px 10px;font-size:.8rem;cursor:pointer;white-space:nowrap">
+                        <i class="fas fa-forward me-1"></i>Usar todas
+                    </button>
+                    <button id="mp-cfg-cerrar" type="button"
+                            title="Cancelar"
+                            style="background:rgba(255,255,255,.15);border:none;color:#fff;border-radius:6px;
+                                   padding:3px 8px;font-size:1rem;cursor:pointer;line-height:1">&times;</button>
+                </div>
             </div>
             <div class="mp-cfg-body">
                 <p class="text-muted small mb-3">
@@ -1416,6 +1422,13 @@ document.getElementById('mp-cfg-iniciar').addEventListener('click', function() {
         btn.disabled = false; btn.innerHTML = '<i class="fas fa-play-circle me-2"></i>Iniciar protocolo';
     });
 });
+
+// Botón cerrar panel de config
+document.getElementById('mp-cfg-cerrar').addEventListener('click', function() {
+    document.getElementById('mp-cfg-overlay').classList.add('d-none');
+    document.querySelectorAll('[name="_c8j2g16[]"]').forEach(function(el) { el.checked = false; });
+    _mpApplyExamVisibility(null);
+});
 /* ── Wizard: añadir tipo de examen ── */
 var _aewState = {}; // {cid: {count, rows}}