diff --git a/public/css/app.css b/public/css/app.css
new file mode 100644
index 0000000..9369113
--- /dev/null
+++ b/public/css/app.css
@@ -0,0 +1,90 @@
+:root {
+  /* Gloom palette — the three ghost types drive the whole color system */
+  --red:    #ff3b5c;
+  --yellow: #ffc23b;
+  --blue:   #3bb6ff;
+
+  --bg:        #07090f;
+  --bg-soft:   #0d111c;
+  --panel:     #121829;
+  --panel-2:   #1a2238;
+  --line:      #283250;
+  --text:      #e8edff;
+  --text-dim:  #8d9bc4;
+  --gloom:     #7CFFB2;     /* pickup currency green (studs) */
+  --danger:    #ff3b5c;
+
+  --rad: 14px;
+  --shadow: 0 10px 40px rgba(0,0,0,.55);
+  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
+  --display: "Bahnschrift", "DIN Alternate", "Oswald", system-ui, sans-serif;
+  --body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
+}
+
+* { box-sizing: border-box; }
+html, body { margin: 0; height: 100%; }
+body {
+  background: radial-gradient(120% 80% at 50% -10%, #11182c 0%, var(--bg) 60%);
+  color: var(--text);
+  font-family: var(--body);
+  -webkit-font-smoothing: antialiased;
+  overscroll-behavior: none;
+}
+
+h1, h2, h3, .display {
+  font-family: var(--display);
+  letter-spacing: .04em;
+  text-transform: uppercase;
+  font-weight: 700;
+}
+
+a { color: var(--blue); }
+
+button {
+  font-family: var(--display);
+  letter-spacing: .06em;
+  text-transform: uppercase;
+  border: 1px solid var(--line);
+  background: var(--panel-2);
+  color: var(--text);
+  padding: 10px 16px;
+  border-radius: 10px;
+  cursor: pointer;
+  transition: transform .08s ease, border-color .15s, background .15s;
+}
+button:hover { border-color: var(--blue); }
+button:active { transform: translateY(1px); }
+button:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
+button.primary { background: var(--blue); color: #04121f; border-color: transparent; font-weight: 700; }
+button.danger { border-color: var(--danger); color: var(--danger); background: transparent; }
+
+input, select, textarea {
+  font-family: var(--body);
+  background: var(--bg-soft);
+  border: 1px solid var(--line);
+  color: var(--text);
+  border-radius: 8px;
+  padding: 9px 11px;
+  width: 100%;
+}
+input:focus, select:focus, textarea:focus { outline: 2px solid var(--blue); outline-offset: 1px; }
+label { font-size: 12px; color: var(--text-dim); display: block; margin-bottom: 4px; letter-spacing: .03em; }
+
+.type-red    { color: var(--red); }
+.type-yellow { color: var(--yellow); }
+.type-blue   { color: var(--blue); }
+.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; vertical-align: middle; }
+.dot.red    { background: var(--red); box-shadow: 0 0 8px var(--red); }
+.dot.yellow { background: var(--yellow); box-shadow: 0 0 8px var(--yellow); }
+.dot.blue   { background: var(--blue); box-shadow: 0 0 8px var(--blue); }
+
+.stars { color: var(--yellow); letter-spacing: 2px; font-size: 13px; }
+
+.disclaimer {
+  font-size: 11px; color: var(--text-dim); line-height: 1.5;
+  border-top: 1px solid var(--line); padding: 14px 18px; text-align: center;
+}
+
+.hidden { display: none !important; }
+.muted { color: var(--text-dim); }
+.mono { font-family: var(--mono); }