Agrega hoja de estilo al proyecto

estilodiag.css

@@ -0,0 +1,102 @@
+body {
+    font-family: Arial, sans-serif;
+    background-color: #eef2f3;
+    margin: 0;
+}
+
+header {
+    background-color: #198754;
+    color: white;
+    text-align: center;
+    padding: 15px;
+}
+
+nav {
+    background-color: #333;
+    padding: 10px;
+    text-align: center;
+}
+
+nav a {
+    color: white;
+    margin: 10px;
+    text-decoration: none;
+}
+
+main {
+    padding: 20px;
+}
+
+section {
+    margin-bottom: 20px;
+}
+
+img {
+    width: 100%;
+    max-width: 500px;
+}
+
+table {
+    border-collapse: collapse;
+    width: 100%;
+}
+
+table, th, td {
+    border: 1px solid black;
+}
+
+th, td {
+    padding: 8px;
+    text-align: center;
+}
+
+form {
+    background-color: white;
+    padding: 20px;
+    border-radius: 10px;
+    border: 1px solid #ccc;
+    max-width: 400px;
+    margin: auto;
+    box-shadow: 0px 0px 10px rgba(0,0,0,0,1);
+}
+
+form label {
+    font-weight: bold;
+    display: block;
+    margin-top: 10px;
+}
+
+input, select, textarea {
+    width: 100%;
+    padding: 8px;
+    margin-top: 5px;
+    border-radius: 5px;
+    border: 1px solid #ccc;
+    box-sizing: border-box;
+}
+
+button {
+    background-color: #198754;
+    color: white;
+    border: none;
+    padding: 10px;
+    width: 100%;
+    border-radius: 5px;
+    margin-top: 15px;
+    cursor: pointer;
+    font-size: 16px;
+}
+
+button:hover {
+    background-color: #146c43;
+}
+
+footer {
+    background-color: #333;
+    color: white;
+    text-align: center;
+    padding: 10px;
+}
+
+
+