From c541cc09b40e606b002af4bb6215b187c95c0556 Mon Sep 17 00:00:00 2001
From: pavel444-byte <pavel.melnikov.kid.1993@gmail.com>
Date: Thu, 15 Oct 2026 17:30:10 +0500
Subject: [PATCH] Add public profiles and cosmetic shop

---
 app/cosmetics/page.tsx                        |  43 ++
 app/dashboard/page.tsx                        |   8 +
 app/layout.tsx                                |   1 +
 app/players/[id]/page.tsx                     |  76 ++++
 app/profile-cosmetics.css                     | 409 ++++++++++++++++++
 app/settings/page.tsx                         |   1 +
 components/AccountSettings.tsx                |  36 +-
 components/CosmeticsShop.tsx                  | 152 +++++++
 components/Leaderboard.tsx                    |  16 +-
 components/MultiplayerGame.tsx                |   1 +
 components/MultiplayerRoom.tsx                |   2 +
 components/PixelArt.tsx                       |  66 +--
 lib/account-api.ts                            |   5 +-
 lib/api.ts                                    |   3 +
 lib/catalog.ts                                |   4 +-
 lib/cosmetics-api.ts                          |  52 +++
 lib/leaderboard.ts                            |   2 +-
 lib/multiplayer-appearance.ts                 |   2 +-
 lib/profile-cosmetics.ts                      |  15 +
 lib/profile.ts                                |   2 +-
 lib/public-profile.ts                         |  41 ++
 shared/account.ts                             |  15 +-
 shared/database.ts                            |  18 +
 shared/locales/ru.json                        |  49 +++
 shared/profile-appearance.ts                  |   3 +-
 shared/profile-cosmetic-ids.ts                |   8 +
 shared/profile-cosmetics.ts                   |  41 ++
 ...5121852_profile_cosmetics_and_currency.sql | 333 ++++++++++++++
 28 files changed, 1359 insertions(+), 45 deletions(-)
 create mode 100644 app/cosmetics/page.tsx
 create mode 100644 app/players/[id]/page.tsx
 create mode 100644 app/profile-cosmetics.css
 create mode 100644 components/CosmeticsShop.tsx
 create mode 100644 lib/cosmetics-api.ts
 create mode 100644 lib/profile-cosmetics.ts
 create mode 100644 lib/public-profile.ts
 create mode 100644 shared/profile-cosmetic-ids.ts
 create mode 100644 shared/profile-cosmetics.ts
 create mode 100644 supabase/migrations/20261015121852_profile_cosmetics_and_currency.sql

diff --git a/app/cosmetics/page.tsx b/app/cosmetics/page.tsx
new file mode 100644
index 0000000..5839856
--- /dev/null
+++ b/app/cosmetics/page.tsx
@@ -0,0 +1,43 @@
+import Link from "next/link";
+import { redirect } from "next/navigation";
+import { ArrowLeft } from "lucide-react";
+import { CosmeticsShop } from "@/components/CosmeticsShop";
+import { Footer, Header } from "@/components/Shell";
+import { getI18n } from "@/lib/i18n";
+import { accountProfile } from "@/lib/profile";
+import { profileCosmeticsState } from "@/lib/profile-cosmetics";
+import { user } from "@/lib/supabase";
+
+export const dynamic = "force-dynamic";
+
+export async function generateMetadata() {
+  const { t } = await getI18n();
+  return { title: t("Profile cosmetics") };
+}
+
+export default async function CosmeticsPage() {
+  const account = await user();
+  if (!account) redirect("/log-in?next=%2Fcosmetics");
+  const [profile, shop] = await Promise.all([
+    accountProfile(account),
+    profileCosmeticsState(account.id),
+  ]);
+  const { t } = await getI18n();
+
+  return (
+    <>
+      <Header />
+      <main className="section page-content">
+        <Link className="text-link" href="/dashboard">
+          <ArrowLeft size={15} aria-hidden="true" /> {t("My account")}
+        </Link>
+        <CosmeticsShop
+          accountId={account.id}
+          avatarPath={profile.avatar_path}
+          initialShop={shop}
+        />
+      </main>
+      <Footer />
+    </>
+  );
+}
diff --git a/app/dashboard/page.tsx b/app/dashboard/page.tsx
index 74164db..69ca06b 100644
--- a/app/dashboard/page.tsx
+++ b/app/dashboard/page.tsx
@@ -42,6 +42,14 @@ export default async function DashboardPage() {
               .
             </p>
             <Dashboard />
+            <div className="inline-actions dashboard-profile-actions">
+              <Link className="button primary" href="/cosmetics">
+                {t("Browse profile cosmetics")}
+              </Link>
+              <Link className="button" href={"/players/" + account.id}>
+                {t("View public profile")}
+              </Link>
+            </div>
             {history.length > 0 && (
               <section className="token-box">
                 <h2>{t("Recent journeys")}</h2>
diff --git a/app/layout.tsx b/app/layout.tsx
index 3fed4b1..01ada2c 100644
--- a/app/layout.tsx
+++ b/app/layout.tsx
@@ -17,6 +17,7 @@ import "./mobile-game.css";
 import "./multiplayer.css";
 import "./support.css";
 import "./appearance.css";
+import "./profile-cosmetics.css";
 import "./community.css";
 import { themeInitScript } from "@/shared/theme";
 import { SiteSettingsProvider } from "@/components/SiteSettingsProvider";
diff --git a/app/players/[id]/page.tsx b/app/players/[id]/page.tsx
new file mode 100644
index 0000000..5af96e9
--- /dev/null
+++ b/app/players/[id]/page.tsx
@@ -0,0 +1,76 @@
+import Link from "next/link";
+import { notFound } from "next/navigation";
+import { ArrowLeft, Compass, MapPinned } from "lucide-react";
+import { Footer, Header } from "@/components/Shell";
+import { PlayerAvatar } from "@/components/PixelArt";
+import { Username } from "@/components/Username";
+import { getI18n } from "@/lib/i18n";
+import { publicProfile } from "@/lib/public-profile";
+
+export const dynamic = "force-dynamic";
+
+export default async function PlayerProfilePage({
+  params,
+}: {
+  params: Promise<{ id: string }>;
+}) {
+  const { id } = await params;
+  const profile = await publicProfile(id);
+  if (!profile) notFound();
+  const { t, formatDate, formatNumber } = await getI18n();
+
+  return (
+    <>
+      <Header />
+      <main className="section page-content public-profile-page">
+        <Link className="text-link" href="/leaderboard">
+          <ArrowLeft size={15} aria-hidden="true" /> {t("Back to leaderboard")}
+        </Link>
+        <section className="public-profile-hero">
+          <PlayerAvatar
+            id={profile.id}
+            avatarPath={profile.avatar_path}
+            effect={profile.profile_effect}
+            className="public-profile-avatar"
+          />
+          <div className="public-profile-copy">
+            <span className="eyebrow">{t("MINEGEO EXPLORER")}</span>
+            <h1>
+              <Username name={profile.display_name} appearance={profile} />
+            </h1>
+            <p className="muted">
+              {t("Exploring since {date}", {
+                date: formatDate(profile.created_at),
+              })}
+            </p>
+          </div>
+        </section>
+
+        <section className="public-profile-about" aria-labelledby="profile-about">
+          <h2 id="profile-about">{t("About this explorer")}</h2>
+          <p className="public-profile-bio">
+            {profile.bio || t("This explorer hasn’t added a description yet.")}
+          </p>
+        </section>
+
+        <section className="public-profile-stats" aria-label={t("Profile stats")}>
+          <article className="public-profile-stat">
+            <Compass size={19} aria-hidden="true" />
+            <span>{t("Completed journeys")}</span>
+            <strong>{formatNumber(profile.completedGames)}</strong>
+          </article>
+          <article className="public-profile-stat">
+            <MapPinned size={19} aria-hidden="true" />
+            <span>{t("Published maps")}</span>
+            <strong>{formatNumber(profile.publishedMaps)}</strong>
+          </article>
+        </section>
+
+        <p className="public-profile-footnote">
+          {t("Only public account details and published maps appear here.")}
+        </p>
+      </main>
+      <Footer />
+    </>
+  );
+}
diff --git a/app/profile-cosmetics.css b/app/profile-cosmetics.css
new file mode 100644
index 0000000..2cd4e33
--- /dev/null
+++ b/app/profile-cosmetics.css
@@ -0,0 +1,409 @@
+.profile-avatar-shell {
+  display: inline-grid;
+  position: relative;
+  isolation: isolate;
+  place-items: center;
+  flex: none;
+  line-height: 0;
+  vertical-align: middle;
+}
+
+.profile-avatar-shell > .player-avatar {
+  position: relative;
+  z-index: 1;
+}
+
+.profile-avatar-shell[data-effect]::before,
+.profile-avatar-shell[data-effect]::after {
+  content: "";
+  position: absolute;
+  pointer-events: none;
+}
+
+.profile-avatar-shell[data-effect="redstone-pulse"]::before {
+  inset: -4px;
+  border: 2px solid #ef6556;
+  border-radius: 8px;
+  box-shadow: 0 0 8px #ef655688, inset 0 0 6px #ef655655;
+  animation: redstone-pulse 1.8s ease-in-out infinite;
+}
+
+.profile-avatar-shell[data-effect="ender-orbit"]::before {
+  inset: -5px;
+  border: 1px solid #ad83fa;
+  border-radius: 50%;
+  box-shadow: 0 0 9px #8d62e877;
+  transform: rotate(-24deg) scaleX(0.74);
+  animation: ender-orbit 3.4s linear infinite;
+}
+
+.profile-avatar-shell[data-effect="ender-orbit"]::after {
+  width: 5px;
+  height: 5px;
+  top: -4px;
+  right: 0;
+  border-radius: 50%;
+  background: #d3b7ff;
+  box-shadow: 0 0 8px #a780ff;
+}
+
+.profile-avatar-shell[data-effect="nether-flame"]::before {
+  inset: -6px;
+  border: 2px solid #ff8c43;
+  border-radius: 7px;
+  box-shadow: 0 0 9px #f4632d99, inset 0 -5px 10px #f4632d55;
+  animation: nether-flicker 1.2s ease-in-out infinite alternate;
+}
+
+.profile-avatar-shell[data-effect="nether-flame"]::after {
+  inset: -8px -3px;
+  border-radius: 50%;
+  border-top: 1px solid #ffd27c;
+  border-bottom: 1px solid #f4632d99;
+  filter: blur(1px);
+  opacity: 0.7;
+  animation: nether-flicker 1.7s ease-in-out infinite alternate-reverse;
+}
+
+.profile-avatar-shell[data-effect="aurora-crown"]::before {
+  inset: -6px;
+  border-radius: 50%;
+  background: conic-gradient(
+    from 0deg,
+    #72f3d4,
+    #75a9ff,
+    #c89bff,
+    #72f3d4
+  );
+  -webkit-mask: radial-gradient(
+    farthest-side,
+    transparent calc(100% - 2px),
+    #000 calc(100% - 1px)
+  );
+  mask: radial-gradient(
+    farthest-side,
+    transparent calc(100% - 2px),
+    #000 calc(100% - 1px)
+  );
+  filter: drop-shadow(0 0 5px #78e7d5aa);
+  animation: aurora-turn 5s linear infinite;
+}
+
+.profile-name-link {
+  color: inherit;
+  text-decoration: none;
+}
+
+.dashboard-profile-actions {
+  margin: 20px 0 34px;
+}
+
+.profile-name-link:hover,
+.profile-name-link:focus-visible {
+  color: var(--green);
+  text-decoration: underline;
+  text-underline-offset: 3px;
+}
+
+.public-profile-page {
+  max-width: 900px;
+}
+
+.public-profile-hero {
+  display: flex;
+  align-items: center;
+  gap: 28px;
+  margin: 34px 0 28px;
+  padding: 32px;
+  border: 1px solid var(--line);
+  background:
+    radial-gradient(ellipse at 12% 50%, #84c8a31b, transparent 55%),
+    var(--panel);
+  box-shadow: 4px 4px #03070b;
+}
+
+.public-profile-avatar {
+  width: 88px;
+  height: 88px;
+  box-shadow: 4px 4px #03070b;
+}
+
+.public-profile-copy h1 {
+  margin: 8px 0;
+  overflow-wrap: anywhere;
+}
+
+.public-profile-copy p {
+  margin: 0;
+  font-size: 13px;
+}
+
+.public-profile-about {
+  margin: 28px 0;
+  padding: 24px 28px;
+  border: 1px solid var(--line);
+  background: var(--panel);
+}
+
+.public-profile-about h2 {
+  margin-bottom: 12px;
+  font-size: 23px;
+}
+
+.public-profile-bio {
+  margin: 0;
+  color: var(--muted);
+  line-height: 1.8;
+  white-space: pre-line;
+  overflow-wrap: anywhere;
+}
+
+.public-profile-stats {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 16px;
+}
+
+.public-profile-stat {
+  display: grid;
+  grid-template-columns: auto 1fr;
+  align-items: center;
+  gap: 8px 12px;
+  padding: 18px;
+  border: 1px solid var(--line);
+  background: var(--panel);
+}
+
+.public-profile-stat > svg {
+  color: var(--green);
+}
+
+.public-profile-stat > span {
+  color: var(--muted);
+  font-size: 12px;
+}
+
+.public-profile-stat > strong {
+  grid-column: 2;
+  font-size: 25px;
+}
+
+.public-profile-footnote {
+  margin: 16px 0;
+  color: var(--muted);
+  font-size: 11px;
+}
+
+.cosmetics-shop {
+  margin-top: 30px;
+}
+
+.cosmetics-shop-heading {
+  display: flex;
+  align-items: end;
+  justify-content: space-between;
+  gap: 30px;
+  margin-bottom: 24px;
+}
+
+.cosmetics-shop-heading h1 {
+  margin: 10px 0;
+  font-size: clamp(38px, 6vw, 60px);
+  line-height: 1;
+}
+
+.cosmetics-shop-heading .lead {
+  max-width: 610px;
+  margin: 0;
+}
+
+.cosmetics-wallet {
+  display: flex;
+  align-items: center;
+  gap: 13px;
+  flex: none;
+  min-width: 190px;
+  padding: 16px 19px;
+  border: 1px solid #d8bd72;
+  background: #241f14;
+  box-shadow: 3px 3px #03070b;
+  color: #f0d891;
+}
+
+.cosmetics-wallet > span {
+  display: grid;
+  gap: 5px;
+}
+
+.cosmetics-wallet small {
+  color: #bcae84;
+  font-size: 9px;
+  letter-spacing: 0.12em;
+}
+
+.cosmetics-wallet strong {
+  font-size: 16px;
+}
+
+.cosmetics-earning-note {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  margin: 18px 0 28px;
+  padding: 13px 16px;
+  border: 1px solid var(--line);
+  background: var(--panel);
+  color: var(--muted);
+  font-size: 12px;
+}
+
+.cosmetics-earning-note svg {
+  flex: none;
+  color: #d8bd72;
+}
+
+.cosmetics-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
+  gap: 18px;
+}
+
+.cosmetic-card {
+  display: flex;
+  flex-direction: column;
+  min-width: 0;
+  min-height: 350px;
+  padding: 18px;
+  border: 1px solid var(--line);
+  border-top: 3px solid #7b8c83;
+  background: var(--panel);
+  box-shadow: 3px 3px #03070b;
+}
+
+.cosmetic-card[data-rarity="rare"] {
+  border-top-color: #8984d8;
+}
+
+.cosmetic-card[data-rarity="epic"] {
+  border-top-color: #e08b55;
+}
+
+.cosmetic-card[data-rarity="legendary"] {
+  border-top-color: #79d4bd;
+}
+
+.cosmetic-card-top {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 8px;
+  min-height: 20px;
+}
+
+.cosmetic-rarity {
+  color: var(--muted);
+  font-size: 10px;
+  text-transform: uppercase;
+  letter-spacing: 0.1em;
+}
+
+.cosmetic-equipped {
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+  color: var(--green);
+  font-size: 10px;
+}
+
+.cosmetic-preview {
+  display: grid;
+  place-items: center;
+  min-height: 128px;
+  margin: 12px 0 14px;
+  border: 1px solid var(--line);
+  background:
+    radial-gradient(circle, #9caa7122 0, transparent 58%),
+    #0b1117;
+}
+
+.cosmetic-preview-avatar {
+  width: 64px;
+  height: 64px;
+  box-shadow: 3px 3px #03070b;
+}
+
+.cosmetic-card h2 {
+  margin: 0 0 8px;
+  font-size: 21px;
+}
+
+.cosmetic-card > p {
+  flex: 1;
+  margin: 0 0 18px;
+  color: var(--muted);
+  font-size: 12px;
+  line-height: 1.7;
+}
+
+.cosmetic-card-action .button {
+  width: 100%;
+  min-height: 42px;
+}
+
+.cosmetics-real-money-note {
+  margin: 24px 0 0;
+  color: var(--muted);
+  font-size: 11px;
+}
+
+@keyframes redstone-pulse {
+  0%, 100% { opacity: 0.65; box-shadow: 0 0 5px #ef655655; }
+  50% { opacity: 1; box-shadow: 0 0 13px #ef6556bb, inset 0 0 6px #ef655655; }
+}
+
+@keyframes ender-orbit {
+  to { transform: rotate(336deg) scaleX(0.74); }
+}
+
+@keyframes nether-flicker {
+  from { opacity: 0.58; filter: saturate(0.9); }
+  to { opacity: 1; filter: saturate(1.25); }
+}
+
+@keyframes aurora-turn {
+  to { transform: rotate(360deg); }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .profile-avatar-shell[data-effect]::before,
+  .profile-avatar-shell[data-effect]::after {
+    animation: none;
+  }
+}
+
+@media (max-width: 680px) {
+  .public-profile-hero {
+    gap: 20px;
+    padding: 22px;
+  }
+
+  .cosmetics-shop-heading {
+    align-items: stretch;
+    flex-direction: column;
+  }
+
+  .cosmetics-wallet {
+    width: max-content;
+  }
+}
+
+@media (max-width: 480px) {
+  .public-profile-hero {
+    align-items: flex-start;
+    flex-direction: column;
+  }
+
+  .public-profile-stats {
+    grid-template-columns: 1fr;
+  }
+}
diff --git a/app/settings/page.tsx b/app/settings/page.tsx
index 432797e..32a935a 100644
--- a/app/settings/page.tsx
+++ b/app/settings/page.tsx
@@ -85,6 +85,7 @@ export default async function Settings({
             accountId={account.id}
             email={account.email ?? ""}
             displayName={profile.display_name}
+            bio={profile.bio}
             avatarPath={profile.avatar_path}
             appearance={profile}
             passwordUpdated={query.password === "updated"}
diff --git a/components/AccountSettings.tsx b/components/AccountSettings.tsx
index a4ddde7..eea3c23 100644
--- a/components/AccountSettings.tsx
+++ b/components/AccountSettings.tsx
@@ -3,6 +3,7 @@ import { useI18n } from "@/components/I18nProvider";
 
 import { useState } from "react";
 import { useRouter } from "next/navigation";
+import Link from "next/link";
 import { UserRound, LockKeyhole, Mail } from "lucide-react";
 import { api } from "./StartGame";
 import { PasswordForm } from "./PasswordForm";
@@ -19,6 +20,7 @@ export function AccountSettings({
   accountId,
   email,
   displayName,
+  bio,
   avatarPath,
   appearance,
   passwordUpdated = false,
@@ -26,12 +28,14 @@ export function AccountSettings({
   accountId: string;
   email: string;
   displayName: string;
+  bio: string;
   avatarPath: string | null;
   appearance: ProfileAppearance;
   passwordUpdated?: boolean;
 }) {
   const { t } = useI18n();
   const [name, setName] = useState(displayName),
+    [about, setAbout] = useState(bio),
     [message, setMessage] = useState(""),
     [error, setError] = useState(""),
     [busy, setBusy] = useState(false);
@@ -124,13 +128,16 @@ export function AccountSettings({
     }
     setBusy(true);
     try {
-      const data = await api<{ profile: { display_name: string } }>(
+      const data = await api<{
+        profile: { display_name: string; bio: string };
+      }>(
         "profile",
-        { displayName: valid.data },
+        { displayName: valid.data, bio: about },
         "PATCH",
       );
       setName(data.profile.display_name);
-      setMessage("Display name saved.");
+      setAbout(data.profile.bio);
+      setMessage("Public profile saved.");
       router.refresh();
     } catch (e) {
       setError((e as Error).message);
@@ -161,15 +168,21 @@ export function AccountSettings({
           <div>
             <h2>{t("Your public profile.")}</h2>
             <p className="muted">
-              {t("A name for the maps and places you share.")}
+              {t("A name and description for other explorers to see.")}
             </p>
           </div>
         </div>
+        <p>
+          <Link className="text-link" href={"/players/" + accountId}>
+            {t("View public profile")} →
+          </Link>
+        </p>
         <form onSubmit={save}>
           <div className="account-avatar-control">
             <PlayerAvatar
               id={accountId}
               avatarPath={photoPath}
+              effect={appearance.profile_effect}
               className="account-avatar-preview"
             />
             <div className="account-avatar-input">
@@ -221,6 +234,19 @@ export function AccountSettings({
               {t("2–32 characters. Display names do not have to be unique.")}
             </small>
           </label>
+          <label className="field">
+            {t("About you")}
+            <textarea
+              name="bio"
+              value={about}
+              onChange={(event) => setAbout(event.target.value)}
+              maxLength={280}
+              rows={4}
+              placeholder={t("Tell other explorers a little about yourself.")}
+              disabled={busy}
+            />
+            <small>{t("Shown on your public profile · Maximum 280 characters.")}</small>
+          </label>
           <div className="account-email">
             <Mail size={17} />
             <div>
@@ -242,7 +268,7 @@ export function AccountSettings({
             </p>
           )}
           <button className="button primary" disabled={busy}>
-            {busy ? t("Saving…") : t("Save display name")}
+            {busy ? t("Saving…") : t("Save public profile")}
           </button>
         </form>
       </section>
diff --git a/components/CosmeticsShop.tsx b/components/CosmeticsShop.tsx
new file mode 100644
index 0000000..9fbb473
--- /dev/null
+++ b/components/CosmeticsShop.tsx
@@ -0,0 +1,152 @@
+"use client";
+
+import { useState } from "react";
+import { useRouter } from "next/navigation";
+import { Check, Coins, Sparkles } from "lucide-react";
+import { useI18n } from "@/components/I18nProvider";
+import { PlayerAvatar } from "@/components/PixelArt";
+import { api } from "@/lib/client-api";
+import type {
+  CosmeticShopState,
+  ProfileCosmeticId,
+} from "@/shared/profile-cosmetics";
+
+export function CosmeticsShop({
+  accountId,
+  avatarPath,
+  initialShop,
+}: {
+  accountId: string;
+  avatarPath?: string | null;
+  initialShop: CosmeticShopState;
+}) {
+  const { t, formatNumber } = useI18n();
+  const router = useRouter();
+  const [shop, setShop] = useState(initialShop);
+  const [busy, setBusy] = useState<string | null>(null);
+  const [error, setError] = useState("");
+  const [message, setMessage] = useState("");
+
+  async function change(action: "purchase" | "equip", cosmeticId: ProfileCosmeticId | null) {
+    const requestId = cosmeticId ?? "none";
+    setBusy(requestId);
+    setError("");
+    setMessage("");
+    try {
+      const result = await api<{ shop: CosmeticShopState }>("cosmetics", {
+        action,
+        cosmeticId,
+      });
+      setShop(result.shop);
+      setMessage(
+        action === "purchase"
+          ? "Cosmetic purchased and equipped."
+          : cosmeticId
+            ? "Cosmetic equipped."
+            : "Profile effect removed.",
+      );
+      router.refresh();
+    } catch (reason) {
+      setError((reason as Error).message);
+    } finally {
+      setBusy(null);
+    }
+  }
+
+  return (
+    <div className="cosmetics-shop">
+      <div className="cosmetics-shop-heading">
+        <div>
+          <span className="eyebrow">{t("THE EXPLORER’S WARDROBE")}</span>
+          <h1>{t("Leave a little sparkle.")}</h1>
+          <p className="lead">
+            {t("Earn GeoCoins in solo expeditions and dress up your profile portrait.")}
+          </p>
+        </div>
+        <div className="cosmetics-wallet" aria-label={t("GeoCoins balance")}>
+          <Coins size={20} aria-hidden="true" />
+          <span>
+            <small>{t("YOUR BALANCE")}</small>
+            <strong>{formatNumber(shop.balance)} {t("GeoCoins")}</strong>
+          </span>
+        </div>
+      </div>
+
+      <p className="cosmetics-earning-note">
+        <Sparkles size={17} aria-hidden="true" />
+        {t("Complete a public solo game to earn 10–20 GeoCoins. Rewards are capped at 100 every 24 hours.")}
+      </p>
+
+      {error && <p className="error-message" role="alert">{t(error)}</p>}
+      {message && <p className="success-message" role="status">{t(message)}</p>}
+
+      <div className="cosmetics-grid">
+        {shop.catalog.map((cosmetic) => {
+          const owned = shop.owned.includes(cosmetic.id);
+          const equipped = shop.equipped === cosmetic.id;
+          const itemBusy = busy === cosmetic.id;
+          return (
+            <article
+              className="cosmetic-card"
+              data-rarity={cosmetic.rarity}
+              key={cosmetic.id}
+            >
+              <div className="cosmetic-card-top">
+                <span className="cosmetic-rarity">{t(cosmetic.rarity)}</span>
+                {equipped && (
+                  <span className="cosmetic-equipped">
+                    <Check size={13} aria-hidden="true" /> {t("Equipped")}
+                  </span>
+                )}
+              </div>
+              <div className="cosmetic-preview">
+                <PlayerAvatar
+                  id={accountId}
+                  avatarPath={avatarPath}
+                  effect={cosmetic.id}
+                  className="cosmetic-preview-avatar"
+                />
+              </div>
+              <h2>{t(cosmetic.name)}</h2>
+              <p>{t(cosmetic.description)}</p>
+              <div className="cosmetic-card-action">
+                {owned ? (
+                  <button
+                    className={equipped ? "button" : "button primary"}
+                    type="button"
+                    onClick={() =>
+                      change("equip", equipped ? null : cosmetic.id)
+                    }
+                    disabled={busy !== null}
+                  >
+                    {itemBusy
+                      ? t("Saving…")
+                      : equipped
+                        ? t("Unequip effect")
+                        : t("Equip effect")}
+                  </button>
+                ) : (
+                  <button
+                    className="button primary"
+                    type="button"
+                    onClick={() => change("purchase", cosmetic.id)}
+                    disabled={busy !== null || shop.balance < cosmetic.price}
+                  >
+                    {itemBusy
+                      ? t("Buying…")
+                      : t("Buy · {price} GeoCoins", {
+                          price: formatNumber(cosmetic.price),
+                        })}
+                  </button>
+                )}
+              </div>
+            </article>
+          );
+        })}
+      </div>
+      <p className="cosmetics-real-money-note">
+        {t("Cosmetics use GeoCoins for now. Payment options may be added later.")}
+      </p>
+    </div>
+  );
+}
diff --git a/components/Leaderboard.tsx b/components/Leaderboard.tsx
index c0dd65c..9b7e48a 100644
--- a/components/Leaderboard.tsx
+++ b/components/Leaderboard.tsx
@@ -107,9 +107,15 @@ export function LeaderboardTable({
                   <PlayerAvatar
                     id={entry.player_id}
                     avatarPath={entry.avatar_path}
+                    effect={entry.profile_effect}
                   />
                   <span className="player-name">
-                    <Username name={entry.display_name} appearance={entry} />
+                    <Link
+                      className="profile-name-link"
+                      href={"/players/" + entry.player_id}
+                    >
+                      <Username name={entry.display_name} appearance={entry} />
+                    </Link>
                     {entry.player_id === playerId && (
                       <span className="you-label">{t("You")}</span>
                     )}
@@ -158,9 +164,15 @@ export function WinnersPodium({ leaders }: { leaders: LeaderboardEntry[] }) {
             <PlayerAvatar
               id={entry.player_id}
               avatarPath={entry.avatar_path}
+              effect={entry.profile_effect}
             />
             <h2>
-              <Username name={entry.display_name} appearance={entry} />
+              <Link
+                className="profile-name-link"
+                href={"/players/" + entry.player_id}
+              >
+                <Username name={entry.display_name} appearance={entry} />
+              </Link>
             </h2>
             <p>
               {formatNumber(entry.best_score)} <span>/ 25,000</span>
diff --git a/components/MultiplayerGame.tsx b/components/MultiplayerGame.tsx
index 67ada09..d1ea298 100644
--- a/components/MultiplayerGame.tsx
+++ b/components/MultiplayerGame.tsx
@@ -142,6 +142,7 @@ export function MultiplayerGame({
               <PlayerAvatar
                 id={player.id}
                 avatarPath={player.appearance?.avatar_path}
+                effect={player.appearance?.profile_effect}
                 className="multiplayer-avatar"
               />
               <span>
diff --git a/components/MultiplayerRoom.tsx b/components/MultiplayerRoom.tsx
index 00ae8ef..fe2ea73 100644
--- a/components/MultiplayerRoom.tsx
+++ b/components/MultiplayerRoom.tsx
@@ -334,6 +334,7 @@ export function MultiplayerRoom({ id }: { id: string }) {
                         <PlayerAvatar
                           id={player.id}
                           avatarPath={player.appearance?.avatar_path}
+                          effect={player.appearance?.profile_effect}
                           className="multiplayer-avatar"
                         />
                         {player.id === room.hostId && (
@@ -441,6 +442,7 @@ export function MultiplayerRoom({ id }: { id: string }) {
                             <PlayerAvatar
                               id={player.id}
                               avatarPath={player.appearance?.avatar_path}
+                              effect={player.appearance?.profile_effect}
                               className="multiplayer-final-avatar"
                             />
                             <Username
diff --git a/components/PixelArt.tsx b/components/PixelArt.tsx
index ed6124d..0079c5b 100644
--- a/components/PixelArt.tsx
+++ b/components/PixelArt.tsx
@@ -1,4 +1,5 @@
 import { profileAvatarUrl } from "@/shared/profile-appearance";
+import { profileCosmeticIds } from "@/shared/profile-cosmetic-ids";
 
 export function PixelTrophy({ className = "" }: { className?: string }) {
   return (
@@ -27,23 +28,28 @@ export function PixelTrophy({ className = "" }: { className?: string }) {
 export function PlayerAvatar({
   id,
   avatarPath,
+  effect,
   className = "",
 }: {
   id: string;
   avatarPath?: string | null;
+  effect?: string | null;
   className?: string;
 }) {
   const avatarUrl = profileAvatarUrl(avatarPath);
+  const activeEffect = profileCosmeticIds.find((value) => value === effect);
   if (avatarUrl)
     return (
-      <img
-        className={`player-avatar ${className}`.trim()}
-        src={avatarUrl}
-        alt=""
-        aria-hidden="true"
-        loading="lazy"
-        decoding="async"
-      />
+      <span className="profile-avatar-shell" data-effect={activeEffect}>
+        <img
+          className={`player-avatar ${className}`.trim()}
+          src={avatarUrl}
+          alt=""
+          aria-hidden="true"
+          loading="lazy"
+          decoding="async"
+        />
+      </span>
     );
   const seed = [...id].reduce(
     (value, char) => (value * 31 + char.charCodeAt(0)) >>> 0,
@@ -53,26 +59,28 @@ export function PlayerAvatar({
   const skin = ["#c99a77", "#a67b60", "#dab28d", "#875f4d"][(seed >>> 3) % 4];
   const shirt = ["#68876a", "#697e91", "#a68a50", "#8b6e7f"][(seed >>> 5) % 4];
   return (
-    <svg
-      className={`player-avatar ${className}`.trim()}
-      viewBox="0 0 8 8"
-      aria-hidden="true"
-      shapeRendering="crispEdges"
-    >
-      <path fill={shirt} d="M0 0h8v8H0z" />
-      <path fill={skin} d="M1 1h6v6H1z" />
-      <path
-        fill={hair}
-        d={
-          seed % 2
-            ? "M1 0h6v2H3v1H1zM6 2h1v2H6z"
-            : "M1 0h6v2H1zM1 2h1v2H1zM6 2h1v2H6z"
-        }
-      />
-      <path fill="#e6ded0" d="M2 3h1v1H2zM5 3h1v1H5z" />
-      <path fill="#3b4140" d="M3 3h1v1H3zM4 3h1v1H4z" />
-      <path fill="#825b49" d="M3 5h2v1H3z" />
-      <path fill={shirt} d="M0 7h8v1H0z" />
-    </svg>
+    <span className="profile-avatar-shell" data-effect={activeEffect}>
+      <svg
+        className={`player-avatar ${className}`.trim()}
+        viewBox="0 0 8 8"
+        aria-hidden="true"
+        shapeRendering="crispEdges"
+      >
+        <path fill={shirt} d="M0 0h8v8H0z" />
+        <path fill={skin} d="M1 1h6v6H1z" />
+        <path
+          fill={hair}
+          d={
+            seed % 2
+              ? "M1 0h6v2H3v1H1zM6 2h1v2H6z"
+              : "M1 0h6v2H1zM1 2h1v2H1zM6 2h1v2H6z"
+          }
+        />
+        <path fill="#e6ded0" d="M2 3h1v1H2zM5 3h1v1H5z" />
+        <path fill="#3b4140" d="M3 3h1v1H3zM4 3h1v1H4z" />
+        <path fill="#825b49" d="M3 5h2v1H3z" />
+        <path fill={shirt} d="M0 7h8v1H0z" />
+      </svg>
+    </span>
   );
 }
diff --git a/lib/account-api.ts b/lib/account-api.ts
index 3d92be3..ec4efef 100644
--- a/lib/account-api.ts
+++ b/lib/account-api.ts
@@ -181,7 +181,7 @@ export async function accountApi(
             .update({ avatar_path: avatarPath })
             .eq("id", account.id)
             .select(
-              "id,display_name,avatar_path,role,name_glow,glow_color,bug_finder,custom_prefix,custom_prefix_icon",
+              "id,display_name,bio,avatar_path,profile_effect,role,name_glow,glow_color,bug_finder,custom_prefix,custom_prefix_icon",
             )
             .single(),
         );
@@ -269,10 +269,11 @@ export async function accountApi(
             ...(body.avatarPath !== undefined
               ? { avatar_path: body.avatarPath }
               : {}),
+            ...(body.bio !== undefined ? { bio: body.bio } : {}),
           })
           .eq("id", account.id)
           .select(
-            "id,display_name,avatar_path,role,name_glow,glow_color,bug_finder,custom_prefix,custom_prefix_icon",
+            "id,display_name,bio,avatar_path,profile_effect,role,name_glow,glow_color,bug_finder,custom_prefix,custom_prefix_icon",
           )
           .single(),
       );
diff --git a/lib/api.ts b/lib/api.ts
index 0e46c73..ac81179 100644
--- a/lib/api.ts
+++ b/lib/api.ts
@@ -18,6 +18,7 @@ import { requestOrigin, verifyOrigin } from "./request-origin";
 import { browserAccount } from "./request-security";
 import { jsonBody } from "./json-body";
 import { accountApi } from "./account-api";
+import { cosmeticsApi } from "./cosmetics-api";
 import { multiplayerApi } from "./multiplayer-api";
 import { bugReportApi } from "./bug-report-api";
 import { moderatorUsersApi } from "./moderator-users-api";
@@ -131,6 +132,8 @@ export async function handle(request: NextRequest, path: string[]) {
       return await accountControlsApi(request, path, { jsonBody, limit });
     if (path[0] === "auth" || path[0] === "profile")
       return await accountApi(request, path, { jsonBody, limit });
+    if (path[0] === "cosmetics")
+      return await cosmeticsApi(request, path, { jsonBody, limit });
     // Check signed-in identities before any guest-cookie fallback (games/rooms).
     if (path[0] !== "health") await user();
     if (path[0] === "rooms")
diff --git a/lib/catalog.ts b/lib/catalog.ts
index 3d30200..d60d2e0 100644
--- a/lib/catalog.ts
+++ b/lib/catalog.ts
@@ -64,7 +64,7 @@ export async function catalog() {
         await client
           .from("profiles")
           .select(
-            "id,display_name,avatar_path,name_glow,glow_color,role,bug_finder,custom_prefix,custom_prefix_icon",
+            "id,display_name,avatar_path,profile_effect,name_glow,glow_color,role,bug_finder,custom_prefix,custom_prefix_icon",
           )
           .in("id", [
             ...new Set(
@@ -106,7 +106,7 @@ export async function getMap(id: string) {
       ? admin()
           .from("profiles")
           .select(
-            "display_name,avatar_path,name_glow,glow_color,role,bug_finder,custom_prefix,custom_prefix_icon",
+            "display_name,avatar_path,profile_effect,name_glow,glow_color,role,bug_finder,custom_prefix,custom_prefix_icon",
           )
           .eq("id", map.owner_id)
           .maybeSingle()
diff --git a/lib/cosmetics-api.ts b/lib/cosmetics-api.ts
new file mode 100644
index 0000000..795de3c
--- /dev/null
+++ b/lib/cosmetics-api.ts
@@ -0,0 +1,52 @@
+import "server-only";
+import { NextRequest, NextResponse } from "next/server";
+import { profileCosmeticActionSchema } from "@/shared/profile-cosmetics";
+import { admin, required, user } from "./supabase";
+import { browserAccount } from "./request-security";
+import { profileCosmeticsState } from "./profile-cosmetics";
+
+type Context = {
+  jsonBody: (request: NextRequest) => Promise<unknown>;
+  limit: (key: string, count: number, seconds: number) => Promise<void>;
+};
+
+const json = (body: unknown, status = 200) =>
+  NextResponse.json(body, { status, headers: { "Cache-Control": "no-store" } });
+
+export async function cosmeticsApi(
+  request: NextRequest,
+  path: string[],
+  context: Context,
+) {
+  if (path.length !== 1) return json({ error: "Not found" }, 404);
+  const account = await browserAccount(request, user);
+  if (request.method === "GET")
+    return json({ shop: await profileCosmeticsState(account.id) });
+  if (request.method !== "POST")
+    return json({ error: "Method not allowed" }, 405);
+
+  const body = profileCosmeticActionSchema.parse(
+    await context.jsonBody(request),
+  );
+  if (body.action === "purchase") {
+    await context.limit("cosmetic-purchase:" + account.id, 8, 60);
+    return json({
+      shop: required(
+        await admin().rpc("buy_profile_cosmetic", {
+          p_user: account.id,
+          p_cosmetic_id: body.cosmeticId,
+        }),
+      ),
+    });
+  }
+
+  await context.limit("cosmetic-equip:" + account.id, 30, 60);
+  return json({
+    shop: required(
+      await admin().rpc("equip_profile_cosmetic", {
+        p_user: account.id,
+        p_cosmetic_id: body.cosmeticId,
+      }),
+    ),
+  });
+}
diff --git a/lib/leaderboard.ts b/lib/leaderboard.ts
index 59b2be5..8d5ae58 100644
--- a/lib/leaderboard.ts
+++ b/lib/leaderboard.ts
@@ -35,7 +35,7 @@ export async function leaderboard({
           await admin()
             .from("profiles")
             .select(
-              "id,avatar_path,name_glow,glow_color,role,bug_finder,custom_prefix,custom_prefix_icon",
+              "id,avatar_path,profile_effect,name_glow,glow_color,role,bug_finder,custom_prefix,custom_prefix_icon",
             )
             .in("id", ids),
         )
diff --git a/lib/multiplayer-appearance.ts b/lib/multiplayer-appearance.ts
index d8d413e..41c1f91 100644
--- a/lib/multiplayer-appearance.ts
+++ b/lib/multiplayer-appearance.ts
@@ -25,7 +25,7 @@ export async function multiplayerAppearance(room: string, ids: string[]) {
     await db
       .from("profiles")
       .select(
-        "id,display_name,avatar_path,name_glow,glow_color,role,bug_finder,custom_prefix,custom_prefix_icon",
+        "id,display_name,avatar_path,profile_effect,name_glow,glow_color,role,bug_finder,custom_prefix,custom_prefix_icon",
       )
       .in("id", accounts),
   );
diff --git a/lib/profile-cosmetics.ts b/lib/profile-cosmetics.ts
new file mode 100644
index 0000000..1855076
--- /dev/null
+++ b/lib/profile-cosmetics.ts
@@ -0,0 +1,15 @@
+import "server-only";
+import { admin, required } from "./supabase";
+import {
+  cosmeticShopStateSchema,
+  type CosmeticShopState,
+} from "@/shared/profile-cosmetics";
+
+export async function profileCosmeticsState(
+  userId: string,
+): Promise<CosmeticShopState> {
+  const result = required(
+    await admin().rpc("cosmetics_shop_state", { p_user: userId }),
+  );
+  return cosmeticShopStateSchema.parse(result);
+}
diff --git a/lib/profile.ts b/lib/profile.ts
index 95363cf..e138703 100644
--- a/lib/profile.ts
+++ b/lib/profile.ts
@@ -21,7 +21,7 @@ export async function accountProfile(account: User) {
     await admin()
       .from("profiles")
       .select(
-        "id,display_name,avatar_path,role,name_glow,glow_color,bug_finder,custom_prefix,custom_prefix_icon,account_status,account_reason,account_changed_at",
+        "id,display_name,bio,avatar_path,profile_effect,role,name_glow,glow_color,bug_finder,custom_prefix,custom_prefix_icon,account_status,account_reason,account_changed_at",
       )
       .eq("id", account.id)
       .single(),
diff --git a/lib/public-profile.ts b/lib/public-profile.ts
new file mode 100644
index 0000000..327b184
--- /dev/null
+++ b/lib/public-profile.ts
@@ -0,0 +1,41 @@
+import "server-only";
+import { z } from "zod";
+import { admin } from "./supabase";
+
+const uuidSchema = z.string().uuid();
+
+export async function publicProfile(userId: string) {
+  const validId = uuidSchema.safeParse(userId);
+  if (!validId.success) return null;
+
+  const result = await admin()
+    .from("profiles")
+    .select(
+      "id,display_name,bio,avatar_path,profile_effect,name_glow,glow_color,role,bug_finder,custom_prefix,custom_prefix_icon,created_at",
+    )
+    .eq("id", validId.data)
+    .eq("account_status", "active")
+    .maybeSingle();
+  if (result.error) throw new Error(result.error.message);
+  if (!result.data) return null;
+
+  const [games, maps] = await Promise.all([
+    admin()
+      .from("game_sessions")
+      .select("id", { count: "exact", head: true })
+      .eq("owner_id", validId.data)
+      .eq("current_round", 5),
+    admin()
+      .from("datasets")
+      .select("id", { count: "exact", head: true })
+      .eq("owner_id", validId.data)
+      .eq("state", "published"),
+  ]);
+  if (games.error) throw new Error(games.error.message);
+  if (maps.error) throw new Error(maps.error.message);
+  return {
+    ...result.data,
+    completedGames: games.count ?? 0,
+    publishedMaps: maps.count ?? 0,
+  };
+}
diff --git a/shared/account.ts b/shared/account.ts
index c971fd7..8f099c2 100644
--- a/shared/account.ts
+++ b/shared/account.ts
@@ -43,13 +43,26 @@ export const profileUpdateSchema = z
     displayName: displayNameSchema.optional(),
     glowColor: glowColorSchema.optional(),
     avatarPath: z.string().max(128).nullable().optional(),
+    bio: z
+      .string()
+      .trim()
+      .max(280, "Use at most 280 characters")
+      .refine(
+        (value) =>
+          !/[\u0000-\u0008\u000b\u000c\u000e-\u001f\u007f-\u009f\u202a-\u202e\u2066-\u2069<>]/u.test(
+            value,
+          ),
+        "Use plain text without hidden controls or markup",
+      )
+      .optional(),
   })
   .strict()
   .refine(
     (value) =>
       value.displayName !== undefined ||
       value.glowColor !== undefined ||
-      value.avatarPath !== undefined,
+      value.avatarPath !== undefined ||
+      value.bio !== undefined,
     "Choose a profile change",
   );
 export const initialPasswordSchema = z
diff --git a/shared/database.ts b/shared/database.ts
index 47fb03c..0208b31 100644
--- a/shared/database.ts
+++ b/shared/database.ts
@@ -568,6 +568,8 @@ export type Database = {
       profiles: {
         Row: AccountStatusFields & {
           avatar_path: string | null;
+          bio: string;
+          profile_effect: string | null;
           glow_color: string;
           bug_finder: boolean;
           custom_prefix: string | null;
@@ -580,6 +582,8 @@ export type Database = {
         };
         Insert: Partial<AccountStatusFields> & {
           avatar_path?: string | null;
+          bio?: string;
+          profile_effect?: string | null;
           glow_color?: string;
           bug_finder?: boolean;
           custom_prefix?: string | null;
@@ -592,6 +596,8 @@ export type Database = {
         };
         Update: Partial<AccountStatusFields> & {
           avatar_path?: string | null;
+          bio?: string;
+          profile_effect?: string | null;
           glow_color?: string;
           bug_finder?: boolean;
           custom_prefix?: string | null;
@@ -782,6 +788,18 @@ export type Database = {
       [_ in never]: never;
     };
     Functions: {
+      cosmetics_shop_state: {
+        Args: { p_user: string };
+        Returns: Json;
+      };
+      buy_profile_cosmetic: {
+        Args: { p_user: string; p_cosmetic_id: string };
+        Returns: Json;
+      };
+      equip_profile_cosmetic: {
+        Args: { p_user: string; p_cosmetic_id: string | null };
+        Returns: Json;
+      };
       admin_account_action: {
         Args: {
           p_reviewer: string;
diff --git a/shared/locales/ru.json b/shared/locales/ru.json
index 100c4f3..4036143 100644
--- a/shared/locales/ru.json
+++ b/shared/locales/ru.json
@@ -10,6 +10,55 @@
   "Guide": "Как играть",
   "Docs": "Документация",
   "My account": "Мой аккаунт",
+  "Profile cosmetics": "Косметика профиля",
+  "Browse profile cosmetics": "Открыть магазин косметики",
+  "View public profile": "Открыть публичный профиль",
+  "About you": "О себе",
+  "Tell other explorers a little about yourself.": "Расскажите другим исследователям немного о себе.",
+  "Shown on your public profile · Maximum 280 characters.": "Отображается в публичном профиле · Не более 280 символов.",
+  "Save public profile": "Сохранить публичный профиль",
+  "Public profile saved.": "Публичный профиль сохранён.",
+  "A name and description for other explorers to see.": "Имя и описание, которые увидят другие исследователи.",
+  "Back to leaderboard": "Назад к рейтингу",
+  "MINEGEO EXPLORER": "ИССЛЕДОВАТЕЛЬ MINEGEO",
+  "Exploring since {date}": "Исследует миры с {date}",
+  "About this explorer": "Об исследователе",
+  "This explorer hasn’t added a description yet.": "Исследователь пока не добавил описание.",
+  "Profile stats": "Статистика профиля",
+  "Completed journeys": "Завершённые экспедиции",
+  "Published maps": "Опубликованные карты",
+  "Only public account details and published maps appear here.": "Здесь отображаются только публичные данные аккаунта и опубликованные карты.",
+  "THE EXPLORER’S WARDROBE": "ГАРДЕРОБ ИССЛЕДОВАТЕЛЯ",
+  "Leave a little sparkle.": "Добавь немного сияния.",
+  "Earn GeoCoins in solo expeditions and dress up your profile portrait.": "Зарабатывай GeoCoins в одиночных экспедициях и укрась портрет профиля.",
+  "GeoCoins balance": "Баланс GeoCoins",
+  "YOUR BALANCE": "ТВОЙ БАЛАНС",
+  "GeoCoins": "GeoCoins",
+  "Complete a public solo game to earn 10–20 GeoCoins. Rewards are capped at 100 every 24 hours.": "Заверши одиночную игру на публичной карте и получи 10–20 GeoCoins. Максимум — 100 за каждые 24 часа.",
+  "common": "обычный",
+  "rare": "редкий",
+  "epic": "эпический",
+  "legendary": "легендарный",
+  "Equipped": "Надето",
+  "Cosmetic purchased and equipped.": "Эффект куплен и надет.",
+  "Cosmetic equipped.": "Эффект надет.",
+  "Profile effect removed.": "Эффект профиля снят.",
+  "Not enough GeoCoins": "Недостаточно GeoCoins.",
+  "Cosmetic is not available": "Эта косметика сейчас недоступна.",
+  "Cosmetic not owned": "Сначала купи этот эффект.",
+  "Buy · {price} GeoCoins": "Купить · {price} GeoCoins",
+  "Unequip effect": "Снять эффект",
+  "Equip effect": "Надеть эффект",
+  "Buying…": "Покупка…",
+  "Cosmetics use GeoCoins for now. Payment options may be added later.": "Пока косметика покупается за GeoCoins. Позже могут появиться другие способы оплаты.",
+  "Redstone Pulse": "Импульс редстоуна",
+  "A redstone signal ripples around your portrait.": "Вокруг портрета пробегает импульс редстоуна.",
+  "Ender Orbit": "Орбита Края",
+  "Two ender sparks circle your portrait.": "Вокруг портрета вращаются две искры Края.",
+  "Nether Flame": "Пламя Незера",
+  "A warm nether flame flickers along the frame.": "По рамке мерцает жаркое пламя Незера.",
+  "Aurora Crown": "Корона сияния",
+  "A living aurora sweeps around your portrait.": "Вокруг портрета переливается северное сияние.",
   "Log in": "Войти",
   "Tools & downloads": "Инструменты",
   "Moderation": "Модерация",
diff --git a/shared/profile-appearance.ts b/shared/profile-appearance.ts
index ff4b718..f8079b3 100644
--- a/shared/profile-appearance.ts
+++ b/shared/profile-appearance.ts
@@ -36,6 +36,7 @@ export const prefixUpdateSchema = z
   .strict();
 export type ProfileAppearance = {
   avatar_path?: string | null;
+  profile_effect?: string | null;
   name_glow?: boolean;
   glow_color?: string;
   role?: string;
@@ -44,7 +45,7 @@ export type ProfileAppearance = {
   custom_prefix_icon?: string;
 };
 export const appearanceColumns =
-  "avatar_path,name_glow,glow_color,role,bug_finder,custom_prefix,custom_prefix_icon" as const;
+  "avatar_path,profile_effect,name_glow,glow_color,role,bug_finder,custom_prefix,custom_prefix_icon" as const;
 export type BadgeUser = ProfileAppearance & {
   id: string;
   display_name: string;
diff --git a/shared/profile-cosmetic-ids.ts b/shared/profile-cosmetic-ids.ts
new file mode 100644
index 0000000..70d13ae
--- /dev/null
+++ b/shared/profile-cosmetic-ids.ts
@@ -0,0 +1,8 @@
+export const profileCosmeticIds = [
+  "redstone-pulse",
+  "ender-orbit",
+  "nether-flame",
+  "aurora-crown",
+] as const;
+
+export type ProfileCosmeticId = (typeof profileCosmeticIds)[number];
diff --git a/shared/profile-cosmetics.ts b/shared/profile-cosmetics.ts
new file mode 100644
index 0000000..0490b79
--- /dev/null
+++ b/shared/profile-cosmetics.ts
@@ -0,0 +1,41 @@
+import { z } from "zod";
+import { profileCosmeticIds } from "./profile-cosmetic-ids";
+
+export const profileCosmeticIdSchema = z.enum(profileCosmeticIds);
+export type { ProfileCosmeticId } from "./profile-cosmetic-ids";
+
+export const profileCosmeticActionSchema = z.discriminatedUnion("action", [
+  z
+    .object({
+      action: z.literal("purchase"),
+      cosmeticId: profileCosmeticIdSchema,
+    })
+    .strict(),
+  z
+    .object({
+      action: z.literal("equip"),
+      cosmeticId: profileCosmeticIdSchema.nullable(),
+    })
+    .strict(),
+]);
+
+export const cosmeticShopStateSchema = z
+  .object({
+    balance: z.number().int().nonnegative(),
+    owned: z.array(profileCosmeticIdSchema),
+    equipped: profileCosmeticIdSchema.nullable(),
+    catalog: z.array(
+      z
+        .object({
+          id: profileCosmeticIdSchema,
+          name: z.string().min(1).max(48),
+          description: z.string().min(1).max(160),
+          price: z.number().int().positive(),
+          rarity: z.enum(["common", "rare", "epic", "legendary"]),
+        })
+        .strict(),
+    ),
+  })
+  .strict();
+
+export type CosmeticShopState = z.infer<typeof cosmeticShopStateSchema>;
diff --git a/supabase/migrations/20261015121852_profile_cosmetics_and_currency.sql b/supabase/migrations/20261015121852_profile_cosmetics_and_currency.sql
new file mode 100644
index 0000000..cfbdca3
--- /dev/null
+++ b/supabase/migrations/20261015121852_profile_cosmetics_and_currency.sql
@@ -0,0 +1,333 @@
+-- Public profile details and in-game cosmetic purchases.
+alter table public.profiles
+  add column bio text not null default '' check (char_length(bio) <= 280);
+
+create table public.profile_cosmetics (
+  id text primary key check (id in (
+    'redstone-pulse',
+    'ender-orbit',
+    'nether-flame',
+    'aurora-crown'
+  )),
+  name text not null,
+  description text not null,
+  price integer not null check (price > 0),
+  rarity text not null check (rarity in ('common', 'rare', 'epic', 'legendary')),
+  sort_order integer not null unique,
+  active boolean not null default true,
+  created_at timestamptz not null default clock_timestamp()
+);
+
+insert into public.profile_cosmetics (id, name, description, price, rarity, sort_order)
+values
+  ('redstone-pulse', 'Redstone Pulse', 'A redstone signal ripples around your portrait.', 50, 'common', 1),
+  ('ender-orbit', 'Ender Orbit', 'Two ender sparks circle your portrait.', 90, 'rare', 2),
+  ('nether-flame', 'Nether Flame', 'A warm nether flame flickers along the frame.', 130, 'epic', 3),
+  ('aurora-crown', 'Aurora Crown', 'A living aurora sweeps around your portrait.', 180, 'legendary', 4);
+
+alter table public.profiles
+  add column profile_effect text references public.profile_cosmetics(id) on delete set null;
+
+create table public.game_wallets (
+  user_id uuid primary key references public.profiles(id) on delete cascade,
+  balance integer not null default 0 check (balance >= 0),
+  updated_at timestamptz not null default clock_timestamp()
+);
+
+create table public.profile_cosmetic_ownership (
+  user_id uuid not null references public.profiles(id) on delete cascade,
+  cosmetic_id text not null references public.profile_cosmetics(id) on delete restrict,
+  purchased_at timestamptz not null default clock_timestamp(),
+  primary key (user_id, cosmetic_id)
+);
+
+create table public.game_wallet_transactions (
+  id uuid primary key default gen_random_uuid(),
+  user_id uuid not null references public.profiles(id) on delete cascade,
+  amount integer not null check (amount <> 0),
+  source text not null check (source in ('game_reward', 'cosmetic_purchase')),
+  source_key text not null check (char_length(source_key) between 1 and 64),
+  created_at timestamptz not null default clock_timestamp(),
+  unique (user_id, source, source_key),
+  check (
+    (source = 'game_reward' and amount > 0)
+    or (source = 'cosmetic_purchase' and amount < 0)
+  )
+);
+
+create index profile_cosmetic_ownership_user
+  on public.profile_cosmetic_ownership(user_id, purchased_at desc);
+create index game_wallet_transactions_user_created
+  on public.game_wallet_transactions(user_id, created_at desc);
+
+alter table public.profile_cosmetics enable row level security;
+alter table public.game_wallets enable row level security;
+alter table public.profile_cosmetic_ownership enable row level security;
+alter table public.game_wallet_transactions enable row level security;
+
+revoke all on public.profile_cosmetics,
+  public.game_wallets,
+  public.profile_cosmetic_ownership,
+  public.game_wallet_transactions
+  from public, anon, authenticated;
+grant select on public.profile_cosmetics to service_role;
+grant all on public.game_wallets,
+  public.profile_cosmetic_ownership,
+  public.game_wallet_transactions
+  to service_role;
+
+create function public.cosmetics_shop_state(p_user uuid)
+returns jsonb
+language plpgsql
+security invoker
+set search_path = ''
+as $$
+declare
+  v_balance integer;
+  v_owned jsonb;
+  v_effect text;
+  v_catalog jsonb;
+begin
+  if not exists (
+    select 1 from public.profiles
+    where id = p_user and account_status = 'active'
+  ) then
+    raise exception using errcode = '42501', message = 'Active account required';
+  end if;
+
+  insert into public.game_wallets(user_id)
+  values (p_user)
+  on conflict (user_id) do nothing;
+
+  select balance into v_balance
+  from public.game_wallets
+  where user_id = p_user;
+
+  select profile_effect into v_effect
+  from public.profiles
+  where id = p_user;
+
+  select coalesce(
+    jsonb_agg(cosmetic_id order by purchased_at, cosmetic_id),
+    '[]'::jsonb
+  )
+  into v_owned
+  from public.profile_cosmetic_ownership
+  where user_id = p_user;
+
+  select coalesce(
+    jsonb_agg(
+      jsonb_build_object(
+        'id', id,
+        'name', name,
+        'description', description,
+        'price', price,
+        'rarity', rarity
+      )
+      order by sort_order
+    ),
+    '[]'::jsonb
+  )
+  into v_catalog
+  from public.profile_cosmetics
+  where active;
+
+  return jsonb_build_object(
+    'balance', v_balance,
+    'owned', v_owned,
+    'equipped', v_effect,
+    'catalog', v_catalog
+  );
+end;
+$$;
+
+create function public.buy_profile_cosmetic(p_user uuid, p_cosmetic_id text)
+returns jsonb
+language plpgsql
+security invoker
+set search_path = ''
+as $$
+declare
+  v_price integer;
+  v_balance integer;
+  v_status text;
+begin
+  select account_status into v_status
+  from public.profiles
+  where id = p_user
+  for update;
+  if v_status is distinct from 'active' then
+    raise exception using errcode = '42501', message = 'Active account required';
+  end if;
+
+  select price into v_price
+  from public.profile_cosmetics
+  where id = p_cosmetic_id and active;
+  if not found then
+    raise exception using errcode = '22023', message = 'Cosmetic is not available';
+  end if;
+
+  insert into public.game_wallets(user_id)
+  values (p_user)
+  on conflict (user_id) do nothing;
+
+  select balance into v_balance
+  from public.game_wallets
+  where user_id = p_user
+  for update;
+
+  if exists (
+    select 1 from public.profile_cosmetic_ownership
+    where user_id = p_user and cosmetic_id = p_cosmetic_id
+  ) then
+    return public.cosmetics_shop_state(p_user);
+  end if;
+
+  if v_balance < v_price then
+    raise exception using errcode = 'P0001', message = 'Not enough GeoCoins';
+  end if;
+
+  insert into public.profile_cosmetic_ownership(user_id, cosmetic_id)
+  values (p_user, p_cosmetic_id);
+
+  insert into public.game_wallet_transactions(user_id, amount, source, source_key)
+  values (p_user, -v_price, 'cosmetic_purchase', p_cosmetic_id);
+
+  update public.game_wallets
+  set balance = balance - v_price,
+      updated_at = clock_timestamp()
+  where user_id = p_user;
+
+  update public.profiles
+  set profile_effect = p_cosmetic_id
+  where id = p_user;
+
+  return public.cosmetics_shop_state(p_user);
+end;
+$$;
+
+create function public.equip_profile_cosmetic(p_user uuid, p_cosmetic_id text)
+returns jsonb
+language plpgsql
+security invoker
+set search_path = ''
+as $$
+declare
+  v_status text;
+begin
+  select account_status into v_status
+  from public.profiles
+  where id = p_user
+  for update;
+  if v_status is distinct from 'active' then
+    raise exception using errcode = '42501', message = 'Active account required';
+  end if;
+
+  if p_cosmetic_id is not null and not exists (
+    select 1 from public.profile_cosmetic_ownership
+    where user_id = p_user and cosmetic_id = p_cosmetic_id
+  ) then
+    raise exception using errcode = '42501', message = 'Cosmetic not owned';
+  end if;
+
+  update public.profiles
+  set profile_effect = p_cosmetic_id
+  where id = p_user;
+
+  return public.cosmetics_shop_state(p_user);
+end;
+$$;
+
+create function public.reward_completed_game_cosmetic_currency()
+returns trigger
+language plpgsql
+security invoker
+set search_path = ''
+as $$
+declare
+  v_user uuid;
+  v_status text;
+  v_wallet_balance integer;
+  v_score integer;
+  v_earned_24h integer;
+  v_reward integer;
+begin
+  if old.result is not null or new.result is null or new.round_number <> 4 then
+    return new;
+  end if;
+
+  select s.owner_id into v_user
+  from public.game_sessions s
+  join public.revisions r on r.id = s.revision_id
+  join public.datasets d on d.id = r.dataset_id
+  where s.id = new.session_id
+    and d.state = 'published';
+
+  if v_user is null then
+    return new;
+  end if;
+
+  select account_status into v_status
+  from public.profiles
+  where id = v_user
+  for update;
+  if v_status is distinct from 'active' then
+    return new;
+  end if;
+
+  insert into public.game_wallets(user_id)
+  values (v_user)
+  on conflict (user_id) do nothing;
+
+  select balance into v_wallet_balance
+  from public.game_wallets
+  where user_id = v_user
+  for update;
+
+  select coalesce(sum(amount), 0)::integer into v_earned_24h
+  from public.game_wallet_transactions
+  where user_id = v_user
+    and source = 'game_reward'
+    and created_at >= clock_timestamp() - interval '24 hours';
+
+  select coalesce(sum((result->>'score')::integer), 0)::integer into v_score
+  from public.game_rounds
+  where session_id = new.session_id
+    and result is not null;
+
+  v_reward := least(20, 10 + floor(v_score::numeric / 2500)::integer);
+  v_reward := least(v_reward, greatest(0, 100 - v_earned_24h));
+  if v_reward <= 0 then
+    return new;
+  end if;
+
+  insert into public.game_wallet_transactions(user_id, amount, source, source_key)
+  values (v_user, v_reward, 'game_reward', new.session_id::text)
+  on conflict (user_id, source, source_key) do nothing;
+  if not found then
+    return new;
+  end if;
+
+  update public.game_wallets
+  set balance = balance + v_reward,
+      updated_at = clock_timestamp()
+  where user_id = v_user;
+
+  return new;
+end;
+$$;
+
+create trigger game_rounds_reward_cosmetic_currency
+after update of result on public.game_rounds
+for each row
+when (old.result is null and new.result is not null and new.round_number = 4)
+execute function public.reward_completed_game_cosmetic_currency();
+
+revoke all on function public.cosmetics_shop_state(uuid) from public, anon, authenticated;
+revoke all on function public.buy_profile_cosmetic(uuid, text) from public, anon, authenticated;
+revoke all on function public.equip_profile_cosmetic(uuid, text) from public, anon, authenticated;
+revoke all on function public.reward_completed_game_cosmetic_currency() from public, anon, authenticated;
+grant execute on function public.cosmetics_shop_state(uuid) to service_role;
+grant execute on function public.buy_profile_cosmetic(uuid, text) to service_role;
+grant execute on function public.equip_profile_cosmetic(uuid, text) to service_role;
+grant execute on function public.reward_completed_game_cosmetic_currency() to service_role;