Add hex color input

public/admin.css

@@ -166,6 +166,19 @@ label { display: grid; gap: 6px; color: var(--muted); font-size: 13px; }
 .setting-switch input:checked { background: var(--brand); }
 .setting-switch input:checked:before { transform: translateX(18px); }
 .color-field input { margin-top: 2px; }
+.color-row {
+  display: grid;
+  grid-template-columns: 58px minmax(0, 1fr);
+  gap: 8px;
+  align-items: center;
+}
+.color-row input[type="color"] {
+  width: 58px;
+}
+.hex-input {
+  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
+  text-transform: lowercase;
+}
 .list-tools {
   padding: 10px 14px;
   border-bottom: 1px solid var(--line);

public/admin.html

@@ -99,7 +99,10 @@
             <label>Titulek EN <input name="titleEn"></label>
             <label>Intro EN <textarea name="introEn" rows="2"></textarea></label>
             <label class="color-field">Barva
+              <span class="color-row">
                 <input name="brand" type="color">
+                <input name="brandHex" class="hex-input" type="text" inputmode="text" maxlength="7" placeholder="#0f8f6f" pattern="#?[0-9a-fA-F]{6}">
+              </span>
             </label>
             <label>Pozice desktop <select name="desktopSide"><option>right</option><option>left</option></select></label>
             <label>Desktop bottom px <input name="desktopBottom" type="number"></label>

public/admin.js

@@ -47,6 +47,13 @@ $("#logoutButton").addEventListener("click", async () => {
 
 $("#settingsButton").addEventListener("click", () => $("#settingsPanel").classList.remove("hidden"));
 $("#closeSettingsButton").addEventListener("click", () => $("#settingsPanel").classList.add("hidden"));
+$("#settingsForm").brand.addEventListener("input", (event) => {
+  $("#settingsForm").brandHex.value = normalizeHexColor(event.target.value) || event.target.value;
+});
+$("#settingsForm").brandHex.addEventListener("input", (event) => {
+  const color = normalizeHexColor(event.target.value);
+  if (color) $("#settingsForm").brand.value = color;
+});
 
 window.addEventListener("focus", stopAttention);
 document.addEventListener("visibilitychange", () => {
@@ -65,7 +72,7 @@ $("#settingsForm").addEventListener("submit", async (event) => {
   settings.intro.cs = form.get("introCs");
   settings.title.en = form.get("titleEn");
   settings.intro.en = form.get("introEn");
-  settings.colors.brand = form.get("brand");
+  settings.colors.brand = normalizeHexColor(form.get("brandHex")) || form.get("brand");
   settings.desktop.side = form.get("desktopSide");
   settings.desktop.bottomPx = Number(form.get("desktopBottom"));
   settings.desktop.sideOffsetPx = Number(form.get("desktopOffset"));
@@ -309,7 +316,8 @@ function renderSite() {
   form.introCs.value = s.intro.cs || "";
   form.titleEn.value = s.title.en || "";
   form.introEn.value = s.intro.en || "";
-  form.brand.value = s.colors.brand || "#0f8f6f";
+  form.brand.value = normalizeHexColor(s.colors.brand) || "#0f8f6f";
+  form.brandHex.value = form.brand.value;
   form.desktopSide.value = s.desktop.side || "right";
   form.desktopBottom.value = s.desktop.bottomPx || 22;
   form.desktopOffset.value = s.desktop.sideOffsetPx || 22;
@@ -829,6 +837,11 @@ function escapeHtml(value) {
   })[char]);
 }
 
+function normalizeHexColor(value) {
+  const match = String(value || "").trim().match(/^#?([0-9a-fA-F]{6})$/);
+  return match ? `#${match[1].toLowerCase()}` : "";
+}
+
 function flag(countryCode) {
   if (!countryCode || countryCode.length !== 2) return "";
   return countryCode.toUpperCase().replace(/./g, (char) => String.fromCodePoint(127397 + char.charCodeAt()));