diff --git a/backend/templates/base.html b/backend/templates/base.html
index 23588dd..1ab2358 100644
--- a/backend/templates/base.html
+++ b/backend/templates/base.html
@@ -4,8 +4,36 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>{% block title %}MYP API Tester{% endblock %}</title>
-    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css">
+    <!-- Inline Bootstrap 5 (minimalst version) -->
     <style>
+        /* Bootstrap 5 Core CSS (minimiert) */
+        :root{--bs-blue:#0d6efd;--bs-indigo:#6610f2;--bs-purple:#6f42c1;--bs-pink:#d63384;--bs-red:#dc3545;--bs-orange:#fd7e14;--bs-yellow:#ffc107;--bs-green:#198754;--bs-teal:#20c997;--bs-cyan:#0dcaf0;--bs-white:#fff;--bs-gray:#6c757d;--bs-gray-dark:#343a40;--bs-gray-100:#f8f9fa;--bs-gray-200:#e9ecef;--bs-gray-300:#dee2e6;--bs-gray-400:#ced4da;--bs-gray-500:#adb5bd;--bs-gray-600:#6c757d;--bs-gray-700:#495057;--bs-gray-800:#343a40;--bs-gray-900:#212529;--bs-primary:#0d6efd;--bs-secondary:#6c757d;--bs-success:#198754;--bs-info:#0dcaf0;--bs-warning:#ffc107;--bs-danger:#dc3545;--bs-light:#f8f9fa;--bs-dark:#212529;--bs-primary-rgb:13,110,253;--bs-secondary-rgb:108,117,125;--bs-success-rgb:25,135,84;--bs-info-rgb:13,202,240;--bs-warning-rgb:255,193,7;--bs-danger-rgb:220,53,69;--bs-light-rgb:248,249,250;--bs-dark-rgb:33,37,41;--bs-white-rgb:255,255,255;--bs-black-rgb:0,0,0;--bs-body-color-rgb:33,37,41;--bs-body-bg-rgb:255,255,255;--bs-font-sans-serif:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";--bs-font-monospace:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;--bs-gradient:linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0));--bs-body-font-family:var(--bs-font-sans-serif);--bs-body-font-size:1rem;--bs-body-font-weight:400;--bs-body-line-height:1.5;--bs-body-color:#212529;--bs-body-bg:#fff}*,::after,::before{box-sizing:border-box}@media (prefers-reduced-motion:no-preference){:root{scroll-behavior:smooth}}body{margin:0;font-family:var(--bs-body-font-family);font-size:var(--bs-body-font-size);font-weight:var(--bs-body-font-weight);line-height:var(--bs-body-line-height);color:var(--bs-body-color);text-align:var(--bs-body-text-align);background-color:var(--bs-body-bg);-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}hr{margin:1rem 0;color:inherit;background-color:currentColor;border:0;opacity:.25}hr:not([size]){height:1px}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5rem;font-weight:500;line-height:1.2}h1{font-size:calc(1.375rem + 1.5vw)}@media (min-width:1200px){h1{font-size:2.5rem}}h2{font-size:calc(1.325rem + .9vw)}@media (min-width:1200px){h2{font-size:2rem}}h3{font-size:calc(1.3rem + .6vw)}@media (min-width:1200px){h3{font-size:1.75rem}}h4{font-size:calc(1.275rem + .3vw)}@media (min-width:1200px){h4{font-size:1.5rem}}h5{font-size:1.25rem}h6{font-size:1rem}p{margin-top:0;margin-bottom:1rem}ol,ul{padding-left:2rem}dl,ol,ul{margin-top:0;margin-bottom:1rem}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}b,strong{font-weight:bolder}small{font-size:.875em}mark{padding:.2em;background-color:#fcf8e3}sub,sup{position:relative;font-size:.75em;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{color:#0d6efd;text-decoration:underline}a:hover{color:#0a58ca}a:not([href]):not([class]),a:not([href]):not([class]):hover{color:inherit;text-decoration:none}code,kbd,pre,samp{font-family:var(--bs-font-monospace);font-size:1em;direction:ltr;unicode-bidi:bidi-override}pre{display:block;margin-top:0;margin-bottom:1rem;overflow:auto;font-size:.875em}pre code{font-size:inherit;color:inherit;word-break:normal}code{font-size:.875em;color:#d63384;word-wrap:break-word}a>code{color:inherit}kbd{padding:.2rem .4rem;font-size:.875em;color:#fff;background-color:#212529;border-radius:.2rem}kbd kbd{padding:0;font-size:1em;font-weight:700}figure{margin:0 0 1rem}img,svg{vertical-align:middle}table{caption-side:bottom;border-collapse:collapse}caption{padding-top:.5rem;padding-bottom:.5rem;color:#6c757d;text-align:left}th{text-align:inherit;text-align:-webkit-match-parent}tbody,td,tfoot,th,thead,tr{border-color:inherit;border-style:solid;border-width:0}label{display:inline-block}button{border-radius:0}button:focus:not(:focus-visible){outline:0}button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}button,select{text-transform:none}[role=button]{cursor:pointer}select{word-wrap:normal}select:disabled{opacity:1}[list]::-webkit-calendar-picker-indicator{display:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}::-moz-focus-inner{padding:0;border-style:none}textarea{resize:vertical}fieldset{min-width:0;padding:0;margin:0;border:0}legend{float:left;width:100%;padding:0;margin-bottom:.5rem;font-size:calc(1.275rem + .3vw);line-height:inherit}@media (min-width:1200px){legend{font-size:1.5rem}}legend+*{clear:left}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-fields-wrapper,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-text,::-webkit-datetime-edit-year-field{padding:0}::-webkit-inner-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:textfield}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-color-swatch-wrapper{padding:0}::file-selector-button{font:inherit}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}iframe{border:0}summary{display:list-item;cursor:pointer}progress{vertical-align:baseline}[hidden]{display:none!important}
+
+        /* Grid */
+        .container,.container-fluid,.container-lg,.container-md,.container-sm,.container-xl,.container-xxl{width:100%;padding-right:var(--bs-gutter-x,.75rem);padding-left:var(--bs-gutter-x,.75rem);margin-right:auto;margin-left:auto}@media (min-width:576px){.container,.container-sm{max-width:540px}}@media (min-width:768px){.container,.container-md,.container-sm{max-width:720px}}@media (min-width:992px){.container,.container-lg,.container-md,.container-sm{max-width:960px}}@media (min-width:1200px){.container,.container-lg,.container-md,.container-sm,.container-xl{max-width:1140px}}@media (min-width:1400px){.container,.container-lg,.container-md,.container-sm,.container-xl,.container-xxl{max-width:1320px}}.row{--bs-gutter-x:1.5rem;--bs-gutter-y:0;display:flex;flex-wrap:wrap;margin-top:calc(var(--bs-gutter-y) * -1);margin-right:calc(var(--bs-gutter-x) * -.5);margin-left:calc(var(--bs-gutter-x) * -.5)}.row>*{flex-shrink:0;width:100%;max-width:100%;padding-right:calc(var(--bs-gutter-x) * .5);padding-left:calc(var(--bs-gutter-x) * .5);margin-top:var(--bs-gutter-y)}.col{flex:1 0 0%}.row-cols-auto>*{flex:0 0 auto;width:auto}.row-cols-1>*{flex:0 0 auto;width:100%}.row-cols-2>*{flex:0 0 auto;width:50%}.row-cols-3>*{flex:0 0 auto;width:33.3333333333%}.row-cols-4>*{flex:0 0 auto;width:25%}.row-cols-5>*{flex:0 0 auto;width:20%}.row-cols-6>*{flex:0 0 auto;width:16.6666666667%}
+
+        /* Nav and Navbar */
+        .nav{display:flex;flex-wrap:wrap;padding-left:0;margin-bottom:0;list-style:none}.nav-link{display:block;padding:.5rem 1rem;color:#0d6efd;text-decoration:none;transition:color .15s ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out}@media (prefers-reduced-motion:reduce){.nav-link{transition:none}}.nav-link:focus,.nav-link:hover{color:#0a58ca}.nav-link.disabled{color:#6c757d;pointer-events:none;cursor:default}.navbar{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;padding-top:.5rem;padding-bottom:.5rem}.navbar>.container,.navbar>.container-fluid,.navbar>.container-lg,.navbar>.container-md,.navbar>.container-sm,.navbar>.container-xl,.navbar>.container-xxl{display:flex;flex-wrap:inherit;align-items:center;justify-content:space-between}.navbar-nav{display:flex;flex-direction:column;padding-left:0;margin-bottom:0;list-style:none}.navbar-nav .nav-link{padding-right:0;padding-left:0}.navbar-nav .dropdown-menu{position:static}.navbar-collapse{flex-basis:100%;flex-grow:1;align-items:center}.navbar-toggler{padding:.25rem .75rem;font-size:1.25rem;line-height:1;background-color:transparent;border:1px solid transparent;border-radius:.25rem;transition:box-shadow .15s ease-in-out}@media (prefers-reduced-motion:reduce){.navbar-toggler{transition:none}}.navbar-toggler:hover{text-decoration:none}.navbar-toggler:focus{text-decoration:none;outline:0;box-shadow:0 0 0 .25rem}.navbar-toggler-icon{display:inline-block;width:1.5em;height:1.5em;vertical-align:middle;background-repeat:no-repeat;background-position:center;background-size:100%}.navbar-dark .navbar-nav .nav-link{color:rgba(255,255,255,.55)}.navbar-dark .navbar-nav .nav-link:focus,.navbar-dark .navbar-nav .nav-link:hover{color:rgba(255,255,255,.75)}.navbar-dark .navbar-nav .nav-link.disabled{color:rgba(255,255,255,.25)}.navbar-dark .navbar-nav .nav-link.active,.navbar-dark .navbar-nav .show>.nav-link{color:#fff}.navbar-dark .navbar-toggler{color:rgba(255,255,255,.55);border-color:rgba(255,255,255,.1)}.navbar-dark .navbar-toggler-icon{background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.55%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e")}.navbar-dark .navbar-text{color:rgba(255,255,255,.55)}.navbar-dark .navbar-text a,.navbar-dark .navbar-text a:focus,.navbar-dark .navbar-text a:hover{color:#fff}.bg-dark{background-color:#212529!important}.navbar-brand{padding-top:.3125rem;padding-bottom:.3125rem;margin-right:1rem;font-size:1.25rem;text-decoration:none;white-space:nowrap}
+
+        /* Background and Text Utilities */
+        .text-white{color:#fff!important}.text-dark{color:#212529!important}.ms-auto{margin-left:auto!important}.me-2{margin-right:.5rem!important}.py-3{padding-top:1rem!important;padding-bottom:1rem!important}.px-4{padding-left:1.5rem!important;padding-right:1.5rem!important}.d-flex{display:flex!important}.align-items-center{align-items:center!important}.justify-content-between{justify-content:space-between!important}.collapse:not(.show){display:none}.dropdown-toggle::after{display:inline-block;vertical-align:.255em;content:"";border-top:.3em solid;border-right:.3em solid transparent;border-bottom:0;border-left:.3em solid transparent}.dropdown-item{display:block;width:100%;padding:.25rem 1rem;clear:both;text-align:inherit;white-space:nowrap;background-color:transparent;border:0}.dropdown-item:focus,.dropdown-item:hover{color:#1e2125;background-color:#f8f9fa}.dropdown-item.active,.dropdown-item:active{color:#fff;text-decoration:none;background-color:#0d6efd}.dropdown-item.disabled,.dropdown-item:disabled{color:#6c757d;pointer-events:none;background-color:transparent}.dropdown-menu{position:absolute;z-index:1000;display:none;min-width:10rem;padding:.5rem 0;margin:0;font-size:1rem;color:#212529;text-align:left;list-style:none;background-color:#fff;background-clip:padding-box;border:1px solid rgba(0,0,0,.15);border-radius:.25rem}.dropdown-menu-end{right:0;left:auto}.dropdown-menu[data-bs-popper]{top:100%;left:0;margin-top:.125rem}
+
+        /* Alert Component */
+        .alert{position:relative;padding:1rem 1rem;margin-bottom:1rem;border:1px solid transparent;border-radius:.25rem}.alert-primary{color:#084298;background-color:#cfe2ff;border-color:#b6d4fe}.alert-secondary{color:#41464b;background-color:#e2e3e5;border-color:#d3d6d8}.alert-success{color:#0f5132;background-color:#d1e7dd;border-color:#badbcc}.alert-info{color:#055160;background-color:#cff4fc;border-color:#b6effb}.alert-warning{color:#664d03;background-color:#fff3cd;border-color:#ffecb5}.alert-danger{color:#842029;background-color:#f8d7da;border-color:#f5c2c7}
+
+        /* Form Elements */
+        .form-control{display:block;width:100%;padding:.375rem .75rem;font-size:1rem;font-weight:400;line-height:1.5;color:#212529;background-color:#fff;background-clip:padding-box;border:1px solid #ced4da;-webkit-appearance:none;-moz-appearance:none;appearance:none;border-radius:.25rem;transition:border-color .15s ease-in-out,box-shadow .15s ease-in-out}.form-control:focus{color:#212529;background-color:#fff;border-color:#86b7fe;outline:0;box-shadow:0 0 0 .25rem rgba(13,110,253,.25)}.form-label{margin-bottom:.5rem}.form-text{margin-top:.25rem;font-size:.875em;color:#6c757d}.form-check{display:block;min-height:1.5rem;padding-left:1.5em;margin-bottom:.125rem}.form-check-input{width:1em;height:1em;margin-top:.25em;vertical-align:top;background-color:#fff;background-repeat:no-repeat;background-position:center;background-size:contain;border:1px solid rgba(0,0,0,.25);-webkit-appearance:none;-moz-appearance:none;appearance:none;-webkit-print-color-adjust:exact;color-adjust:exact}.form-check-input[type=checkbox]{border-radius:.25em}.form-check-input[type=radio]{border-radius:50%}.form-check-input:active{filter:brightness(90%)}.form-check-input:focus{border-color:#86b7fe;outline:0;box-shadow:0 0 0 .25rem rgba(13,110,253,.25)}
+
+        /* Table */
+        .table{--bs-table-bg:transparent;--bs-table-accent-bg:transparent;--bs-table-striped-color:#212529;--bs-table-striped-bg:rgba(0, 0, 0, 0.05);--bs-table-active-color:#212529;--bs-table-active-bg:rgba(0, 0, 0, 0.1);--bs-table-hover-color:#212529;--bs-table-hover-bg:rgba(0, 0, 0, 0.075);width:100%;margin-bottom:1rem;color:#212529;vertical-align:top;border-color:#dee2e6}.table>:not(caption)>*>*{padding:.5rem .5rem;background-color:var(--bs-table-bg);border-bottom-width:1px;box-shadow:inset 0 0 0 9999px var(--bs-table-accent-bg)}.table>tbody{vertical-align:inherit}.table>thead{vertical-align:bottom}.table>:not(:last-child)>:last-child>*{border-bottom-color:currentColor}.table-bordered>:not(caption)>*{border-width:1px 0}.table-bordered>:not(caption)>*>*{border-width:0 1px}.table-striped>tbody>tr:nth-of-type(odd){--bs-table-accent-bg:var(--bs-table-striped-bg);color:var(--bs-table-striped-color)}.table-hover>tbody>tr:hover{--bs-table-accent-bg:var(--bs-table-hover-bg);color:var(--bs-table-hover-color)}
+
+        /* Buttons */
+        .btn{display:inline-block;font-weight:400;line-height:1.5;color:#212529;text-align:center;text-decoration:none;vertical-align:middle;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;background-color:transparent;border:1px solid transparent;padding:.375rem .75rem;font-size:1rem;border-radius:.25rem;transition:color .15s ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out,box-shadow .15s ease-in-out}@media (prefers-reduced-motion:reduce){.btn{transition:none}}.btn:hover{color:#212529}.btn-primary{color:#fff;background-color:#0d6efd;border-color:#0d6efd}.btn-primary:hover{color:#fff;background-color:#0b5ed7;border-color:#0a58ca}.btn-primary:focus{color:#fff;background-color:#0b5ed7;border-color:#0a58ca;box-shadow:0 0 0 .25rem rgba(49,132,253,.5)}.btn-secondary{color:#fff;background-color:#6c757d;border-color:#6c757d}.btn-secondary:hover{color:#fff;background-color:#5c636a;border-color:#565e64}.btn-success{color:#fff;background-color:#198754;border-color:#198754}.btn-success:hover{color:#fff;background-color:#157347;border-color:#146c43}.btn-danger{color:#fff;background-color:#dc3545;border-color:#dc3545}.btn-danger:hover{color:#fff;background-color:#bb2d3b;border-color:#b02a37}.btn-outline-primary{color:#0d6efd;border-color:#0d6efd}.btn-outline-primary:hover{color:#fff;background-color:#0d6efd;border-color:#0d6efd}.btn-outline-secondary{color:#6c757d;border-color:#6c757d}.btn-outline-secondary:hover{color:#fff;background-color:#6c757d;border-color:#6c757d}
+
+        /* Card */
+        .card{position:relative;display:flex;flex-direction:column;min-width:0;word-wrap:break-word;background-color:#fff;background-clip:border-box;border:1px solid rgba(0,0,0,.125);border-radius:.25rem}.card-body{flex:1 1 auto;padding:1rem 1rem}.card-title{margin-bottom:.5rem}.card-subtitle{margin-top:-.25rem;margin-bottom:0}.card-header{padding:.5rem 1rem;margin-bottom:0;background-color:rgba(0,0,0,.03);border-bottom:1px solid rgba(0,0,0,.125)}.card-footer{padding:.5rem 1rem;background-color:rgba(0,0,0,.03);border-top:1px solid rgba(0,0,0,.125)}
+
+        /* MYP Styles */
         .sidebar {
             min-height: calc(100vh - 56px);
             background-color: #f8f9fa;
@@ -83,8 +111,44 @@
         {% block content %}{% endblock %}
     </div>
 
-    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js"></script>
+    <!-- Inline Bootstrap JS (minimal) -->
     <script>
+        // Simple dropdown toggle functionality
+        document.addEventListener('DOMContentLoaded', function() {
+            // Dropdown toggle
+            const dropdownToggles = document.querySelectorAll('.dropdown-toggle');
+            dropdownToggles.forEach(function(toggle) {
+                toggle.addEventListener('click', function(e) {
+                    e.preventDefault();
+                    const parent = this.parentNode;
+                    const dropdown = parent.querySelector('.dropdown-menu');
+                    if (dropdown) {
+                        dropdown.classList.toggle('show');
+                    }
+                });
+            });
+
+            // Close dropdowns when clicking outside
+            document.addEventListener('click', function(e) {
+                if (!e.target.closest('.dropdown')) {
+                    document.querySelectorAll('.dropdown-menu.show').forEach(function(dropdown) {
+                        dropdown.classList.remove('show');
+                    });
+                }
+            });
+
+            // Navbar toggle
+            const navbarToggler = document.querySelector('.navbar-toggler');
+            if (navbarToggler) {
+                navbarToggler.addEventListener('click', function() {
+                    const target = document.querySelector(this.getAttribute('data-bs-target'));
+                    if (target) {
+                        target.classList.toggle('show');
+                    }
+                });
+            }
+        });
+        
         function formatJson(jsonString) {
             try {
                 const obj = JSON.parse(jsonString);