diff --git a/eternity-classic/common.css b/eternity-classic/common.css
index 991151c..39bbcd0 100644
--- a/eternity-classic/common.css
+++ b/eternity-classic/common.css
@@ -123,4 +123,13 @@ button:hover,
 #login-form #logo {
   max-width: 260px;
   height: auto;
+}
+
+body > #logo {
+  display: block;
+  width: 180px;
+  max-width: calc(100% - 40px);
+  height: auto;
+  max-height: 36px;
+  margin: 8px 12px;
 }
\ No newline at end of file
diff --git a/eternity-classic/images/watermark.svg b/eternity-classic/images/watermark.svg
new file mode 100644
index 0000000..143abb3
--- /dev/null
+++ b/eternity-classic/images/watermark.svg
@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 300 80" role="img" aria-label="Eternity Project">
+  <circle cx="40" cy="40" r="28" fill="none" stroke="#8dbb35" stroke-width="3"/>
+  <circle cx="28" cy="28" r="4" fill="#8dbb35"/>
+  <circle cx="51" cy="35" r="3" fill="#8dbb35"/>
+  <circle cx="35" cy="54" r="3.5" fill="#8dbb35"/>
+  <line x1="28" y1="28" x2="51" y2="35" stroke="#8dbb35" stroke-width="2"/>
+  <line x1="28" y1="28" x2="35" y2="54" stroke="#8dbb35" stroke-width="2"/>
+  <text x="84" y="38" font-family="'Space Grotesk','Helvetica Neue',sans-serif" font-size="27" font-weight="700" letter-spacing="1" fill="#8dbb35">ETERNITY</text>
+  <text x="85" y="57" font-family="'DM Mono','Courier New',monospace" font-size="11" letter-spacing="2" fill="#8dbb35">PROJECT / FI</text>
+</svg>
\ No newline at end of file
diff --git a/eternity-classic/watermark.html b/eternity-classic/watermark.html
new file mode 100644
index 0000000..39b34d0
--- /dev/null
+++ b/eternity-classic/watermark.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="UTF-8">
+<title></title>
+<style type="text/css">
+html, body { height: 100%; margin: 0; overflow: hidden; }
+body {
+  background-color: #f1f1e9;
+  background-image: linear-gradient(90deg, transparent 49.5%, rgb(17 33 43 / 5%) 50%, transparent 50.5%), linear-gradient(rgb(17 33 43 / 4%) 1px, transparent 1px);
+  background-size: 70px 70px, 7px 7px;
+}
+body::before {
+  content: "";
+  position: fixed;
+  inset: 0;
+  background: url(images/watermark.svg) center no-repeat;
+  background-size: min(48vw, 300px) auto;
+  opacity: 0.42;
+}
+</style>
+</head>
+<body></body>
+</html>
\ No newline at end of file
