refactor(css): toast sistem iz dupliranih <style> blokova u main.css

Toast obaveštenja (.toast, .toast-greska, .toast-uspeh, .toast.nestaje,
@keyframes toastIn/Out) bila su identično duplirana u podesavanja.html i
podesavanja_opste.html. Izdvojeno jednom u main.css; uklonjeno iz oba <style>
bloka. Obe strane idu kroz base.html (učitavaju main.css), pa rade nepromenjeno.

Standalone .greska (prijava/totp_provera/setup) NAMERNO ostavljene — te strane
ne učitavaju main.css (samostalne, minimalne).

web/static/css/main.css

@@ -723,6 +723,35 @@ select {
     color: var(--greska);
 }
 
+/* toast obaveštenja (npr. povratna informacija posle upload-a) */
+.toast {
+    position: fixed;
+    bottom: 24px;
+    right: 24px;
+    z-index: 9999;
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    padding: 12px 18px;
+    border-radius: 10px;
+    font-size: 13px;
+    font-weight: 500;
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
+    animation: toastIn 0.3s ease forwards;
+    max-width: 340px;
+}
+.toast-greska { background: #fef2f2; color: #dc2626; border: 0.5px solid #fca5a5; }
+.toast-uspeh { background: #f0fdf4; color: #16a34a; border: 0.5px solid #86efac; }
+.toast.nestaje { animation: toastOut 0.3s ease forwards; }
+@keyframes toastIn {
+    from { opacity: 0; transform: translateY(12px); }
+    to { opacity: 1; transform: translateY(0); }
+}
+@keyframes toastOut {
+    from { opacity: 1; transform: translateY(0); }
+    to { opacity: 0; transform: translateY(12px); }
+}
+
 /* ============================================================
    Komponente forme i tabela — zamena za ponavljane inline stilove.
    Cilj: čitljiviji template, jedno mesto istine za izgled.

web/templates/stranice/podesavanja.html

@@ -11,12 +11,6 @@
     .custom-file-label { display: flex; align-items: center; gap: 8px; padding: 8px 12px; background: var(--pozadina); border: 0.5px solid var(--ivica); border-radius: 8px; font-size: 13px; color: var(--tekst-sporedni); cursor: pointer; transition: border-color 0.2s; min-width: 0; overflow: hidden; }
     .custom-file-label:hover { border-color: var(--sb-akcent); color: var(--tekst-glavni); }
     .custom-file-label span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
-    .toast { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; align-items: center; gap: 10px; padding: 12px 18px; border-radius: 10px; font-size: 13px; font-weight: 500; box-shadow: 0 4px 20px rgba(0,0,0,0.15); animation: toastIn 0.3s ease forwards; max-width: 340px; }
-    .toast-greska { background: #fef2f2; color: #dc2626; border: 0.5px solid #fca5a5; }
-    .toast-uspeh { background: #f0fdf4; color: #16a34a; border: 0.5px solid #86efac; }
-    @keyframes toastIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
-    @keyframes toastOut { from { opacity: 1; transform: translateY(0); } to { opacity: 0; transform: translateY(12px); } }
-    .toast.nestaje { animation: toastOut 0.3s ease forwards; }
 </style>
 {{end}}
 

web/templates/stranice/podesavanja_opste.html

@@ -6,13 +6,6 @@
 <style>
     .animiraj:nth-child(1) { animation-delay: 0.10s; }
     .animiraj:nth-child(2) { animation-delay: 0.16s; }
-
-    .toast { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; align-items: center; gap: 10px; padding: 12px 18px; border-radius: 10px; font-size: 13px; font-weight: 500; box-shadow: 0 4px 20px rgba(0,0,0,0.15); animation: toastIn 0.3s ease forwards; max-width: 340px; }
-    .toast-greska { background: #fef2f2; color: #dc2626; border: 0.5px solid #fca5a5; }
-    .toast-uspeh { background: #f0fdf4; color: #16a34a; border: 0.5px solid #86efac; }
-    @keyframes toastIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
-    @keyframes toastOut { from { opacity: 1; transform: translateY(0); } to { opacity: 0; transform: translateY(12px); } }
-    .toast.nestaje { animation: toastOut 0.3s ease forwards; }
 </style>
 {{end}}