diff --git a/.env.example b/.env.example
index f2163ebf..54838ef1 100644
--- a/.env.example
+++ b/.env.example
@@ -56,3 +56,6 @@ SENTRY_AUTH_TOKEN=your-auth-token
 # Set to "true" only if you have user consent or a privacy policy covering this.
 SENTRY_SEND_DEFAULT_PII=false
 NEXT_PUBLIC_SENTRY_SEND_DEFAULT_PII=false
+
+# Public site URL (used as fallback for sitemap/robots if store.url is not set)
+# NEXT_PUBLIC_SITE_URL=https://your-store.com
diff --git a/README.md b/README.md
index feb3b53f..9d4a2c7c 100644
--- a/README.md
+++ b/README.md
@@ -79,6 +79,8 @@ SPREE_PUBLISHABLE_KEY=your_publishable_api_key_here
 
 | Variable | Description | Default |
 |----------|-------------|---------|
+| `NEXT_PUBLIC_DEFAULT_COUNTRY` | Default country ISO code, used for initial redirects before API data loads | `us` |
+| `NEXT_PUBLIC_DEFAULT_LOCALE` | Default locale code | `en` |
 | `GTM_ID` | Google Tag Manager container ID (e.g. `GTM-XXXXXXX`) | _(disabled)_ |
 | `SENTRY_DSN` | Sentry DSN for error tracking (e.g. `https://key@o0.ingest.sentry.io/0`) | _(disabled)_ |
 | `SENTRY_ORG` | Sentry organization slug (for source map uploads) | _(none)_ |
diff --git a/package-lock.json b/package-lock.json
index f304a5f9..0f75743e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -184,6 +184,7 @@
       "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.29.0.tgz",
       "integrity": "sha512-CGOfOJqWjg2qW/Mb6zNsDm+u5vFQ8DxXfbM09z69p5Z6+mE1ikP2jUXw+j42Pf1XTYED2Rni5f95npYeuwMDQA==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@babel/code-frame": "^7.29.0",
         "@babel/generator": "^7.29.0",
@@ -867,6 +868,7 @@
         }
       ],
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=20.19.0"
       },
@@ -907,6 +909,7 @@
         }
       ],
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=20.19.0"
       }
@@ -2273,7 +2276,6 @@
       "resolved": "https://registry.npmjs.org/@jridgewell/source-map/-/source-map-0.3.11.tgz",
       "integrity": "sha512-ZMp1V8ZFcPG5dIWnQLr3NSI1MiCU7UETdS/A0G8V/XWHvJv3ZsFqutJn1Y5RPmAPX6F3BiE397OqveU/9NCuIA==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@jridgewell/gen-mapping": "^0.3.5",
         "@jridgewell/trace-mapping": "^0.3.25"
@@ -2521,6 +2523,7 @@
       "resolved": "https://registry.npmjs.org/@noble/ciphers/-/ciphers-1.3.0.tgz",
       "integrity": "sha512-2I0gnIVPtfnMw9ee9h1dJG7tp81+8Ob3OJb3Mv37rx5L40/b0i7djjCVvGOVqc9AEIQyvyu1i6ypKdFw8R8gQw==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": "^14.21.3 || >=16"
       },
@@ -2617,6 +2620,7 @@
       "resolved": "https://registry.npmjs.org/@opentelemetry/api/-/api-1.9.0.tgz",
       "integrity": "sha512-3giAOQvZiH5F9bMlMiv8+GSPMeqg0dbaeo58/0SlA9sxSqZhnUtxzX9/2FzyhS9sWQf5S0GJE0AKBrFqjpeYcg==",
       "license": "Apache-2.0",
+      "peer": true,
       "engines": {
         "node": ">=8.0.0"
       }
@@ -2638,6 +2642,7 @@
       "resolved": "https://registry.npmjs.org/@opentelemetry/context-async-hooks/-/context-async-hooks-2.5.1.tgz",
       "integrity": "sha512-MHbu8XxCHcBn6RwvCt2Vpn1WnLMNECfNKYB14LI5XypcgH4IE0/DiVifVR9tAkwPMyLXN8dOoPJfya3IryLQVw==",
       "license": "Apache-2.0",
+      "peer": true,
       "engines": {
         "node": "^18.19.0 || >=20.6.0"
       },
@@ -2650,6 +2655,7 @@
       "resolved": "https://registry.npmjs.org/@opentelemetry/core/-/core-2.5.1.tgz",
       "integrity": "sha512-Dwlc+3HAZqpgTYq0MUyZABjFkcrKTePwuiFVLjahGD8cx3enqihmpAmdgNFO1R4m/sIe5afjJrA25Prqy4NXlA==",
       "license": "Apache-2.0",
+      "peer": true,
       "dependencies": {
         "@opentelemetry/semantic-conventions": "^1.29.0"
       },
@@ -3073,6 +3079,7 @@
       "resolved": "https://registry.npmjs.org/@opentelemetry/resources/-/resources-2.5.1.tgz",
       "integrity": "sha512-BViBCdE/GuXRlp9k7nS1w6wJvY5fnFX5XvuEtWsTAOQFIO89Eru7lGW3WbfbxtCuZ/GbrJfAziXG0w0dpxL7eQ==",
       "license": "Apache-2.0",
+      "peer": true,
       "dependencies": {
         "@opentelemetry/core": "2.5.1",
         "@opentelemetry/semantic-conventions": "^1.29.0"
@@ -3089,6 +3096,7 @@
       "resolved": "https://registry.npmjs.org/@opentelemetry/sdk-trace-base/-/sdk-trace-base-2.5.1.tgz",
       "integrity": "sha512-iZH3Gw8cxQn0gjpOjJMmKLd9GIaNh/E3v3ST67vyzLSxHBs14HsG4dy7jMYyC5WXGdBVEcM7U/XTF5hCQxjDMw==",
       "license": "Apache-2.0",
+      "peer": true,
       "dependencies": {
         "@opentelemetry/core": "2.5.1",
         "@opentelemetry/resources": "2.5.1",
@@ -3106,6 +3114,7 @@
       "resolved": "https://registry.npmjs.org/@opentelemetry/semantic-conventions/-/semantic-conventions-1.40.0.tgz",
       "integrity": "sha512-cifvXDhcqMwwTlTK04GBNeIe7yyo28Mfby85QXFe1Yk8nmi36Ab/5UQwptOx84SsoGNRg+EVSjwzfSZMy6pmlw==",
       "license": "Apache-2.0",
+      "peer": true,
       "engines": {
         "node": ">=14"
       }
@@ -4669,6 +4678,7 @@
       "resolved": "https://registry.npmjs.org/@react-email/body/-/body-0.3.0.tgz",
       "integrity": "sha512-uGo0BOOzjbMUo3lu+BIDWayvn5o6Xyfmnlla5VGf05n8gHMvO1ll7U4FtzWe3hxMLwt53pmc4iE0M+B5slG+Ug==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=20.0.0"
       },
@@ -4681,6 +4691,7 @@
       "resolved": "https://registry.npmjs.org/@react-email/button/-/button-0.2.1.tgz",
       "integrity": "sha512-qXyj7RZLE7POy9BMKSoqQ00tOXThjOZSUnI2Yu9i29IHngPlmrNayIWBoVKtElES7OWwypUcpiajwi1mUWx6/A==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=20.0.0"
       },
@@ -4693,6 +4704,7 @@
       "resolved": "https://registry.npmjs.org/@react-email/code-block/-/code-block-0.2.1.tgz",
       "integrity": "sha512-M3B7JpVH4ytgn83/ujRR1k1DQHvTeABiDM61OvAbjLRPhC/5KLHU5KkzIbbuGIrjWwxAbL1kSQzU8MhLEtSxyw==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "prismjs": "^1.30.0"
       },
@@ -4708,6 +4720,7 @@
       "resolved": "https://registry.npmjs.org/@react-email/code-inline/-/code-inline-0.0.6.tgz",
       "integrity": "sha512-jfhebvv3dVsp3OdPgKXnk8+e2pBiDVZejDOBFzBa/IblrAJ9cQDkN6rBD5IyEg8hTOxwbw3iaI/yZFmDmIguIA==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=20.0.0"
       },
@@ -4766,6 +4779,7 @@
       "resolved": "https://registry.npmjs.org/@react-email/container/-/container-0.0.16.tgz",
       "integrity": "sha512-QWBB56RkkU0AJ9h+qy33gfT5iuZknPC7Un/IjZv9B0QmMIK+WWacc0cH6y2SV5Cv/b99hU94fjEMOOO4enpkbQ==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=20.0.0"
       },
@@ -4802,6 +4816,7 @@
       "resolved": "https://registry.npmjs.org/@react-email/heading/-/heading-0.0.16.tgz",
       "integrity": "sha512-jmsKnQm1ykpBzw4hCYHwBkt5pW2jScXffPeEH5ZRF5tZeF5b1pvlFTO9han7C0pCkZYo1kEvWiRtx69yfCIwuw==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=20.0.0"
       },
@@ -4814,6 +4829,7 @@
       "resolved": "https://registry.npmjs.org/@react-email/hr/-/hr-0.0.12.tgz",
       "integrity": "sha512-TwmOmBDibavUQpXBxpmZYi2Iks/yeZOzFYh+di9EltMSnEabH8dMZXrl+pxNXzCgZ2XE8HY7VmUL65Lenfu5PA==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=20.0.0"
       },
@@ -4838,6 +4854,7 @@
       "resolved": "https://registry.npmjs.org/@react-email/img/-/img-0.0.12.tgz",
       "integrity": "sha512-sRCpEARNVTf3FQhZOC+JTvu5r6ubiYWkT0ucYXg8ctkyi4G8QG+jgYPiNUqVeTLA2STOfmPM/nrk1nb84y6CPQ==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=20.0.0"
       },
@@ -4850,6 +4867,7 @@
       "resolved": "https://registry.npmjs.org/@react-email/link/-/link-0.0.13.tgz",
       "integrity": "sha512-lkWc/NjOcefRZMkQoSDDbuKBEBDES9aXnFEOuPH845wD3TxPwh+QTf0fStuzjoRLUZWpHnio4z7qGGRYusn/sw==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=20.0.0"
       },
@@ -4877,6 +4895,7 @@
       "resolved": "https://registry.npmjs.org/@react-email/preview/-/preview-0.0.14.tgz",
       "integrity": "sha512-aYK8q0IPkBXyMsbpMXgxazwHxYJxTrXrV95GFuu2HbEiIToMwSyUgb8HDFYwPqqfV03/jbwqlsXmFxsOd+VNaw==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=20.0.0"
       },
@@ -5231,6 +5250,7 @@
       "resolved": "https://registry.npmjs.org/@react-email/text/-/text-0.1.6.tgz",
       "integrity": "sha512-TYqkioRS45wTR5il3dYk/SbUjjEdhSwh9BtRNB99qNH1pXAwA45H7rAuxehiu8iJQJH0IyIr+6n62gBz9ezmsw==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=20.0.0"
       },
@@ -6123,6 +6143,7 @@
       "resolved": "https://registry.npmjs.org/@spree/sdk/-/sdk-0.19.1.tgz",
       "integrity": "sha512-H4vX8363QzjzWu7rWL9wqLqG2toBlaATx9XO8gmMSRjmHvdTUxPCvQfjitHLH+Q8ll17cUHznki4eunqkT6vVQ==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=18.0.0"
       },
@@ -6171,6 +6192,7 @@
       "resolved": "https://registry.npmjs.org/@stripe/stripe-js/-/stripe-js-8.8.0.tgz",
       "integrity": "sha512-NNYuyW8qmLjyHnpyFgs/23wUrjB8k0xN9YIZFOMLewCa/pIkIji9e9aY/EgdNryEDDRptc6TcPIHRvG1R0ClFw==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=12.16"
       }
@@ -6625,8 +6647,7 @@
       "resolved": "https://registry.npmjs.org/@types/aria-query/-/aria-query-5.0.4.tgz",
       "integrity": "sha512-rfT93uj5s0PRL7EzccGMs3brplhcrghnDoV26NqKhCAS1hVo+WdNsPvE/yb6ilfr5hi2MEk6d5EWJTKdxg8jVw==",
       "dev": true,
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/@types/babel__core": {
       "version": "7.20.5",
@@ -6715,7 +6736,6 @@
       "resolved": "https://registry.npmjs.org/@types/eslint/-/eslint-9.6.1.tgz",
       "integrity": "sha512-FXx2pKgId/WyYo2jXw63kk7/+TY7u7AziEJxJAnSFzHlqTAS3Ync6SvgYAN/k4/PQpnnVuzoMuVnByKK2qp0ag==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@types/estree": "*",
         "@types/json-schema": "*"
@@ -6726,7 +6746,6 @@
       "resolved": "https://registry.npmjs.org/@types/eslint-scope/-/eslint-scope-3.7.7.tgz",
       "integrity": "sha512-MzMFlSLBqNF2gcHWO0G1vP/YQyfvrxZ0bF+u7mzUdZ1/xK4A4sru+nraZz5i3iEIk1l1uyicaDVTB4QbbEkAYg==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@types/eslint": "*",
         "@types/estree": "*"
@@ -6742,8 +6761,7 @@
       "version": "7.0.15",
       "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.15.tgz",
       "integrity": "sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/@types/mysql": {
       "version": "2.15.27",
@@ -6789,6 +6807,7 @@
       "integrity": "sha512-ilcTH/UniCkMdtexkoCN0bI7pMcJDvmQFPvuPvmEaYA/NSfFTAgdUSLAoVjaRJm7+6PvcM+q1zYOwS4wTYMF9w==",
       "devOptional": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "csstype": "^3.2.2"
       }
@@ -6799,6 +6818,7 @@
       "integrity": "sha512-jp2L/eY6fn+KgVVQAOqYItbF0VY/YApe5Mz2F0aykSO8gx31bYCZyvSeYxCHKvzHG5eZjc+zyaS5BrBWya2+kQ==",
       "devOptional": true,
       "license": "MIT",
+      "peer": true,
       "peerDependencies": {
         "@types/react": "^19.2.0"
       }
@@ -6981,7 +7001,6 @@
       "resolved": "https://registry.npmjs.org/@webassemblyjs/ast/-/ast-1.14.1.tgz",
       "integrity": "sha512-nuBEDgQfm1ccRp/8bCQrx1frohyufl4JlbMMZ4P1wpeOfDhF6FQkxZJ1b/e+PLwr6X1Nhw6OLme5usuBWYBvuQ==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@webassemblyjs/helper-numbers": "1.13.2",
         "@webassemblyjs/helper-wasm-bytecode": "1.13.2"
@@ -6991,29 +7010,25 @@
       "version": "1.13.2",
       "resolved": "https://registry.npmjs.org/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.13.2.tgz",
       "integrity": "sha512-6oXyTOzbKxGH4steLbLNOu71Oj+C8Lg34n6CqRvqfS2O71BxY6ByfMDRhBytzknj9yGUPVJ1qIKhRlAwO1AovA==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/@webassemblyjs/helper-api-error": {
       "version": "1.13.2",
       "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-api-error/-/helper-api-error-1.13.2.tgz",
       "integrity": "sha512-U56GMYxy4ZQCbDZd6JuvvNV/WFildOjsaWD3Tzzvmw/mas3cXzRJPMjP83JqEsgSbyrmaGjBfDtV7KDXV9UzFQ==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/@webassemblyjs/helper-buffer": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-buffer/-/helper-buffer-1.14.1.tgz",
       "integrity": "sha512-jyH7wtcHiKssDtFPRB+iQdxlDf96m0E39yb0k5uJVhFGleZFoNw1c4aeIcVUPPbXUVJ94wwnMOAqUHyzoEPVMA==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/@webassemblyjs/helper-numbers": {
       "version": "1.13.2",
       "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-numbers/-/helper-numbers-1.13.2.tgz",
       "integrity": "sha512-FE8aCmS5Q6eQYcV3gI35O4J789wlQA+7JrqTTpJqn5emA4U2hvwJmvFRC0HODS+3Ye6WioDklgd6scJ3+PLnEA==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@webassemblyjs/floating-point-hex-parser": "1.13.2",
         "@webassemblyjs/helper-api-error": "1.13.2",
@@ -7024,15 +7039,13 @@
       "version": "1.13.2",
       "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-wasm-bytecode/-/helper-wasm-bytecode-1.13.2.tgz",
       "integrity": "sha512-3QbLKy93F0EAIXLh0ogEVR6rOubA9AoZ+WRYhNbFyuB70j3dRdwH9g+qXhLAO0kiYGlg3TxDV+I4rQTr/YNXkA==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/@webassemblyjs/helper-wasm-section": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-wasm-section/-/helper-wasm-section-1.14.1.tgz",
       "integrity": "sha512-ds5mXEqTJ6oxRoqjhWDU83OgzAYjwsCV8Lo/N+oRsNDmx/ZDpqalmrtgOMkHwxsG0iI//3BwWAErYRHtgn0dZw==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@webassemblyjs/ast": "1.14.1",
         "@webassemblyjs/helper-buffer": "1.14.1",
@@ -7045,7 +7058,6 @@
       "resolved": "https://registry.npmjs.org/@webassemblyjs/ieee754/-/ieee754-1.13.2.tgz",
       "integrity": "sha512-4LtOzh58S/5lX4ITKxnAK2USuNEvpdVV9AlgGQb8rJDHaLeHciwG4zlGr0j/SNWlr7x3vO1lDEsuePvtcDNCkw==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@xtuc/ieee754": "^1.2.0"
       }
@@ -7055,7 +7067,6 @@
       "resolved": "https://registry.npmjs.org/@webassemblyjs/leb128/-/leb128-1.13.2.tgz",
       "integrity": "sha512-Lde1oNoIdzVzdkNEAWZ1dZ5orIbff80YPdHx20mrHwHrVNNTjNr8E3xz9BdpcGqRQbAEa+fkrCb+fRFTl/6sQw==",
       "license": "Apache-2.0",
-      "peer": true,
       "dependencies": {
         "@xtuc/long": "4.2.2"
       }
@@ -7064,15 +7075,13 @@
       "version": "1.13.2",
       "resolved": "https://registry.npmjs.org/@webassemblyjs/utf8/-/utf8-1.13.2.tgz",
       "integrity": "sha512-3NQWGjKTASY1xV5m7Hr0iPeXD9+RDobLll3T9d2AO+g3my8xy5peVyjSag4I50mR1bBSN/Ct12lo+R9tJk0NZQ==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/@webassemblyjs/wasm-edit": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/@webassemblyjs/wasm-edit/-/wasm-edit-1.14.1.tgz",
       "integrity": "sha512-RNJUIQH/J8iA/1NzlE4N7KtyZNHi3w7at7hDjvRNm5rcUXa00z1vRz3glZoULfJ5mpvYhLybmVcwcjGrC1pRrQ==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@webassemblyjs/ast": "1.14.1",
         "@webassemblyjs/helper-buffer": "1.14.1",
@@ -7089,7 +7098,6 @@
       "resolved": "https://registry.npmjs.org/@webassemblyjs/wasm-gen/-/wasm-gen-1.14.1.tgz",
       "integrity": "sha512-AmomSIjP8ZbfGQhumkNvgC33AY7qtMCXnN6bL2u2Js4gVCg8fp735aEiMSBbDR7UQIj90n4wKAFUSEd0QN2Ukg==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@webassemblyjs/ast": "1.14.1",
         "@webassemblyjs/helper-wasm-bytecode": "1.13.2",
@@ -7103,7 +7111,6 @@
       "resolved": "https://registry.npmjs.org/@webassemblyjs/wasm-opt/-/wasm-opt-1.14.1.tgz",
       "integrity": "sha512-PTcKLUNvBqnY2U6E5bdOQcSM+oVP/PmrDY9NzowJjislEjwP/C4an2303MCVS2Mg9d3AJpIGdUFIQQWbPds0Sw==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@webassemblyjs/ast": "1.14.1",
         "@webassemblyjs/helper-buffer": "1.14.1",
@@ -7116,7 +7123,6 @@
       "resolved": "https://registry.npmjs.org/@webassemblyjs/wasm-parser/-/wasm-parser-1.14.1.tgz",
       "integrity": "sha512-JLBl+KZ0R5qB7mCnud/yyX08jWFw5MsoalJ1pQ4EdFlgj9VdXKGuENGsiCIjegI1W7p91rUlcB/LB5yRJKNTcQ==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@webassemblyjs/ast": "1.14.1",
         "@webassemblyjs/helper-api-error": "1.13.2",
@@ -7131,7 +7137,6 @@
       "resolved": "https://registry.npmjs.org/@webassemblyjs/wast-printer/-/wast-printer-1.14.1.tgz",
       "integrity": "sha512-kPSSXE6De1XOR820C90RIo2ogvZG+c3KiHzqUoO/F34Y2shGzesfqv7o57xrxovZJH/MetF5UjroJ/R/3isoiw==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@webassemblyjs/ast": "1.14.1",
         "@xtuc/long": "4.2.2"
@@ -7141,15 +7146,13 @@
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/@xtuc/ieee754/-/ieee754-1.2.0.tgz",
       "integrity": "sha512-DX8nKgqcGwsc0eJSqYt5lwP4DH5FlHnmuWWBRy7X0NcaGR0ZtuyeESgMwTYVEtxmsNGY+qit4QYT/MIYTOTPeA==",
-      "license": "BSD-3-Clause",
-      "peer": true
+      "license": "BSD-3-Clause"
     },
     "node_modules/@xtuc/long": {
       "version": "4.2.2",
       "resolved": "https://registry.npmjs.org/@xtuc/long/-/long-4.2.2.tgz",
       "integrity": "sha512-NuHqBY1PB/D8xU6s/thBgOAiAP7HOYDQ32+BFZILJ8ivkUkAHQnWfn6WhL79Owj1qmUnoN/YPhktdIoucipkAQ==",
-      "license": "Apache-2.0",
-      "peer": true
+      "license": "Apache-2.0"
     },
     "node_modules/accepts": {
       "version": "2.0.0",
@@ -7194,6 +7197,7 @@
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.16.0.tgz",
       "integrity": "sha512-UVJyE9MttOsBQIDKw1skb9nAwQuR5wuGD3+82K6JgJlm/Y+KI92oNsMNGZCYdDsVtRHSak0pcV5Dno5+4jh9sw==",
       "license": "MIT",
+      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -7215,7 +7219,6 @@
       "resolved": "https://registry.npmjs.org/acorn-import-phases/-/acorn-import-phases-1.0.4.tgz",
       "integrity": "sha512-wKmbr/DDiIXzEOiWrTTUcDm24kQ2vGfZQvM2fwg2vXqR5uW6aapr7ObPtj1th32b9u90/Pf4AItvdTh42fBmVQ==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=10.13.0"
       },
@@ -7240,6 +7243,7 @@
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.18.0.tgz",
       "integrity": "sha512-PlXPeEWMXMZ7sPYOHqmDyCJzcfNrUr3fGNKtezX14ykXOEIvyK81d+qydx89KY5O71FKMPaQ2vBfBFI5NHR63A==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "fast-deep-equal": "^3.1.3",
         "fast-uri": "^3.0.1",
@@ -7256,7 +7260,6 @@
       "resolved": "https://registry.npmjs.org/ajv-formats/-/ajv-formats-2.1.1.tgz",
       "integrity": "sha512-Wx0Kx52hxE7C18hkMEggYlEifqWZtYaRgouJor+WMdPnQyEK13vgEWyVNup7SoeeoLMsr4kf5h6dOW11I15MUA==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "ajv": "^8.0.0"
       },
@@ -7274,7 +7277,6 @@
       "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-5.1.0.tgz",
       "integrity": "sha512-YCS/JNFAUyr5vAuhk1DWm1CBxRHW9LbJ2ozWeemrIqpbsqKjHVxYPyi5GC0rjZIT5JxJ3virVTS8wk4i/Z+krw==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "fast-deep-equal": "^3.1.3"
       },
@@ -7297,7 +7299,6 @@
       "integrity": "sha512-Cxwpt2SfTzTtXcfOlzGEee8O+c+MmUgGrNiBcXnuWxuFJHe6a5Hz7qwhwe5OgaSYI0IJvkLqWX1ASG+cJOkEiA==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=10"
       },
@@ -7483,6 +7484,7 @@
         }
       ],
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "baseline-browser-mapping": "^2.9.0",
         "caniuse-lite": "^1.0.30001759",
@@ -7501,8 +7503,7 @@
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz",
       "integrity": "sha512-E+XQCRwSbaaiChtv6k6Dwgc+bx+Bs6vuKJHHl5kox/BaKbhiXzqQOwK4cO22yElGp2OCmjwVhT3HmxgyPGnJfQ==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/bundle-name": {
       "version": "4.1.0",
@@ -7629,7 +7630,6 @@
       "resolved": "https://registry.npmjs.org/chrome-trace-event/-/chrome-trace-event-1.0.4.tgz",
       "integrity": "sha512-rNjApaLzuwaOTjCiT8lSDdGN1APCiqkChLMJxJPWLunPAt5fy8xgU9/jNOchV84wfIxrA0lRQB7oCT8jrn/wrQ==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=6.0"
       }
@@ -8247,8 +8247,7 @@
       "resolved": "https://registry.npmjs.org/dom-accessibility-api/-/dom-accessibility-api-0.5.16.tgz",
       "integrity": "sha512-X7BJ2yElsnOJ30pZF4uIIDfBEVgF4XEBxL9Bxhy6dnrm5hkzqmsWHGTiHqRiITNhMyFLyAiWndIJP7Z1NTteDg==",
       "dev": true,
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/dom-serializer": {
       "version": "2.0.0",
@@ -8605,7 +8604,6 @@
       "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-5.1.1.tgz",
       "integrity": "sha512-2NxwbF/hZ0KpepYN0cNbo+FN6XoK7GaHlQhgx/hIZl6Va0bF45RQOOwhLIy8lQDbuCiadSLCBnH2CFYquit5bw==",
       "license": "BSD-2-Clause",
-      "peer": true,
       "dependencies": {
         "esrecurse": "^4.3.0",
         "estraverse": "^4.1.1"
@@ -8632,7 +8630,6 @@
       "resolved": "https://registry.npmjs.org/esrecurse/-/esrecurse-4.3.0.tgz",
       "integrity": "sha512-KmfKL3b6G+RXvP8N1vr3Tq1kL/oCFgn2NYXEtqP8/L3pKapUA4G8cFVaoF3SU323CD4XypR/ffioHmkti6/Tag==",
       "license": "BSD-2-Clause",
-      "peer": true,
       "dependencies": {
         "estraverse": "^5.2.0"
       },
@@ -8645,7 +8642,6 @@
       "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-5.3.0.tgz",
       "integrity": "sha512-MMdARuVEQziNTeJD8DgMqmhwR11BRQ/cBP+pLtYdSTnf3MIO8fFeiINEbX36ZdNlfU/7A9f3gUw49B3oQsvwBA==",
       "license": "BSD-2-Clause",
-      "peer": true,
       "engines": {
         "node": ">=4.0"
       }
@@ -8655,7 +8651,6 @@
       "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-4.3.0.tgz",
       "integrity": "sha512-39nnKffWz8xN1BU/2c79n9nB9HDzo0niYUqx6xyqUnyoAnQyyWpOTdZEeiCch8BBu515t4wp9ZmgVfVhn9EBpw==",
       "license": "BSD-2-Clause",
-      "peer": true,
       "engines": {
         "node": ">=4.0"
       }
@@ -8680,7 +8675,6 @@
       "resolved": "https://registry.npmjs.org/events/-/events-3.3.0.tgz",
       "integrity": "sha512-mQw+2fkQbALzQ7V0MY0IqdnXNOeTtP4r0lN9z7AAawCXgqea7bDii20AYrIBrFd/Hx0M2Ocz6S111CaFkUcb0Q==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=0.8.x"
       }
@@ -9214,8 +9208,7 @@
       "version": "0.4.1",
       "resolved": "https://registry.npmjs.org/glob-to-regexp/-/glob-to-regexp-0.4.1.tgz",
       "integrity": "sha512-lkX1HJXwyMcprw/5YUZc2s7DrpAiHB21/V+E1rHUrVNokkvB6bqMzT0VfV6/86ZNabt1k14YOIaT7nDvOX3Iiw==",
-      "license": "BSD-2-Clause",
-      "peer": true
+      "license": "BSD-2-Clause"
     },
     "node_modules/globals": {
       "version": "11.12.0",
@@ -9259,7 +9252,6 @@
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
       "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=8"
       }
@@ -9299,6 +9291,7 @@
       "resolved": "https://registry.npmjs.org/hono/-/hono-4.12.7.tgz",
       "integrity": "sha512-jq9l1DM0zVIvsm3lv9Nw9nlJnMNPOcAtsbsgiUhWcFzPE99Gvo6yRTlszSLLYacMeQ6quHD6hMfId8crVHvexw==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=16.9.0"
       }
@@ -9720,7 +9713,6 @@
       "resolved": "https://registry.npmjs.org/jest-worker/-/jest-worker-27.5.1.tgz",
       "integrity": "sha512-7vuh85V5cdDofPyxn58nrPjBktZo0u9x1g8WtjQol+jZDaE+fhN+cIvTj11GndBnMnyfrUOG1sZQxCdjKh+DKg==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@types/node": "*",
         "merge-stream": "^2.0.0",
@@ -10339,7 +10331,6 @@
       "resolved": "https://registry.npmjs.org/loader-runner/-/loader-runner-4.3.1.tgz",
       "integrity": "sha512-IWqP2SCPhyVFTBtRcgMHdzlf9ul25NwaFx4wCEH/KjAXuuHY4yNjvPXsBokp8jCB936PyWRaPKUNh8NvylLp2Q==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=6.11.5"
       },
@@ -10427,7 +10418,6 @@
       "integrity": "sha512-h5bgJWpxJNswbU7qCrV0tIKQCaS3blPDrqKWx+QxzuzL1zGUzij9XCWLrSLsJPu5t+eWA/ycetzYAO5IOMcWAQ==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "lz-string": "bin/bin.js"
       }
@@ -10739,14 +10729,14 @@
       "version": "2.6.2",
       "resolved": "https://registry.npmjs.org/neo-async/-/neo-async-2.6.2.tgz",
       "integrity": "sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/next": {
       "version": "16.2.1",
       "resolved": "https://registry.npmjs.org/next/-/next-16.2.1.tgz",
       "integrity": "sha512-VaChzNL7o9rbfdt60HUj8tev4m6d7iC1igAy157526+cJlXOQu5LzsBXNT+xaJnTP/k+utSX5vMv7m0G+zKH+Q==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@next/env": "16.2.1",
         "@swc/helpers": "0.5.15",
@@ -11471,7 +11461,6 @@
       "integrity": "sha512-Qb1gy5OrP5+zDf2Bvnzdl3jsTf1qXVMazbvCoKhtKqVs4/YK4ozX4gKQJJVyNe+cajNPn0KoC0MC3FUmaHWEmQ==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "ansi-regex": "^5.0.1",
         "ansi-styles": "^5.0.0",
@@ -11723,6 +11712,7 @@
       "resolved": "https://registry.npmjs.org/react/-/react-19.2.4.tgz",
       "integrity": "sha512-9nfp2hYpCwOjAN+8TZFGhtWEwgvWHXqESH8qT89AT/lWklpLON22Lc8pEtnpsZz7VmawabSU0gCjnj8aC0euHQ==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -11865,8 +11855,7 @@
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-17.0.2.tgz",
       "integrity": "sha512-w2GsyukL62IJnlaff/nRegPQR94C/XXamvMWmSHRJ4y7Ts/4ocGRmTHvOs8PSE6pB3dWOrD/nueuU5sduBsQ4w==",
       "dev": true,
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/react-refresh": {
       "version": "0.18.0",
@@ -12099,6 +12088,7 @@
       "resolved": "https://registry.npmjs.org/rollup/-/rollup-4.59.0.tgz",
       "integrity": "sha512-2oMpl67a3zCH9H79LeMcbDhXW/UmWG/y2zuqnF2jQq5uq9TbM9TVyXvA4+t+ne2IIkBdrLpAaRQAvo7YI/Yyeg==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@types/estree": "1.0.8"
       },
@@ -12229,7 +12219,6 @@
       "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-4.3.3.tgz",
       "integrity": "sha512-eflK8wEtyOE6+hsaRVPxvUKYCpRgzLqDTb8krvAsRIwOGlHoSgYLgBXoubGgLd2fT41/OUYdb48v4k4WWHQurA==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@types/json-schema": "^7.0.9",
         "ajv": "^8.9.0",
@@ -12739,7 +12728,6 @@
       "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.21.tgz",
       "integrity": "sha512-uBHU3L3czsIyYXKX88fdrGovxdSCoTGDRZ6SYXtSRxLZUzHg5P/66Ht6uoUlHu9EZod+inXhKo3qQgwXUT/y1w==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "buffer-from": "^1.0.0",
         "source-map": "^0.6.0"
@@ -12948,7 +12936,6 @@
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-8.1.1.tgz",
       "integrity": "sha512-MpUEN2OodtUzxvKQl72cUF7RQ5EiHsGvSsVG0ia9c5RbWGL2CI4C7EpPS8UTBIplnlzZiNuV56w+FuNxy3ty2Q==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "has-flag": "^4.0.0"
       },
@@ -13055,7 +13042,6 @@
       "resolved": "https://registry.npmjs.org/terser/-/terser-5.46.0.tgz",
       "integrity": "sha512-jTwoImyr/QbOWFFso3YoU3ik0jBBDJ6JTOQiy/J2YxVJdZCc+5u7skhNwiOR3FQIygFqVUPHl7qbbxtjW2K3Qg==",
       "license": "BSD-2-Clause",
-      "peer": true,
       "dependencies": {
         "@jridgewell/source-map": "^0.3.3",
         "acorn": "^8.15.0",
@@ -13074,7 +13060,6 @@
       "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-5.3.17.tgz",
       "integrity": "sha512-YR7PtUp6GMU91BgSJmlaX/rS2lGDbAF7D+Wtq7hRO+MiljNmodYvqslzCFiYVAgW+Qoaaia/QUIP4lGXufjdZw==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@jridgewell/trace-mapping": "^0.3.25",
         "jest-worker": "^27.4.5",
@@ -13107,8 +13092,7 @@
       "version": "2.20.3",
       "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
       "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/third-party-capital": {
       "version": "1.0.20",
@@ -13322,6 +13306,7 @@
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "devOptional": true,
       "license": "Apache-2.0",
+      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -13523,6 +13508,7 @@
       "integrity": "sha512-w+N7Hifpc3gRjZ63vYBXA56dvvRlNWRczTdmCBBa+CotUzAPf5b7YMdMR/8CQoeYE5LX3W4wj6RYTgonm1b9DA==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "esbuild": "^0.27.0",
         "fdir": "^6.5.0",
@@ -13688,7 +13674,6 @@
       "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-2.5.1.tgz",
       "integrity": "sha512-Zn5uXdcFNIA1+1Ei5McRd+iRzfhENPCe7LeABkJtNulSxjma+l7ltNx55BWZkRlwRnpOgHqxnjyaDgJnNXnqzg==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "glob-to-regexp": "^0.4.1",
         "graceful-fs": "^4.1.2"
@@ -13721,7 +13706,6 @@
       "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.105.4.tgz",
       "integrity": "sha512-jTywjboN9aHxFlToqb0K0Zs9SbBoW4zRUlGzI2tYNxVYcEi/IPpn+Xi4ye5jTLvX2YeLuic/IvxNot+Q1jMoOw==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@types/eslint-scope": "^3.7.7",
         "@types/estree": "^1.0.8",
@@ -13770,7 +13754,6 @@
       "resolved": "https://registry.npmjs.org/webpack-sources/-/webpack-sources-3.3.4.tgz",
       "integrity": "sha512-7tP1PdV4vF+lYPnkMR0jMY5/la2ub5Fc/8VQrrU+lXkiM6C4TjVfGw7iKfyhnTQOsD+6Q/iKw0eFciziRgD58Q==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=10.13.0"
       }
@@ -13779,8 +13762,7 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/es-module-lexer/-/es-module-lexer-2.0.0.tgz",
       "integrity": "sha512-5POEcUuZybH7IdmGsD8wlf0AI55wMecM9rVBTI/qEAy2c1kTOm3DjFYjrBdI2K3BaJjJYfYFeRtM0t9ssnRuxw==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/whatwg-mimetype": {
       "version": "5.0.0",
@@ -14092,6 +14074,7 @@
       "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
       "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
       "license": "MIT",
+      "peer": true,
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }
diff --git a/src/app/robots.ts b/src/app/robots.ts
new file mode 100644
index 00000000..68aca55d
--- /dev/null
+++ b/src/app/robots.ts
@@ -0,0 +1,32 @@
+import type { MetadataRoute } from "next";
+import { getStoreUrl } from "@/lib/seo";
+import { generateSitemaps } from "./sitemap";
+
+export default async function robots(): Promise<MetadataRoute.Robots> {
+  const storeUrl = getStoreUrl();
+  const baseUrl = (storeUrl || process.env.NEXT_PUBLIC_SITE_URL || "").replace(
+    /\/$/,
+    "",
+  );
+  const sitemaps = await generateSitemaps();
+
+  return {
+    rules: [
+      {
+        userAgent: "*",
+        allow: "/",
+        disallow: [
+          "/*/account",
+          "/*/account/*",
+          "/*/cart",
+          "/*/checkout/*",
+          "/*?*sort=*",
+          "/*?*page=*",
+          "/*?*filter*=*",
+        ],
+      },
+    ],
+    sitemap: sitemaps.map((s) => `${baseUrl}/sitemap/${s.id}.xml`),
+    host: baseUrl,
+  };
+}
diff --git a/src/app/sitemap.ts b/src/app/sitemap.ts
new file mode 100644
index 00000000..684fc305
--- /dev/null
+++ b/src/app/sitemap.ts
@@ -0,0 +1,287 @@
+import { getClient } from "@spree/next";
+import type { Category, Media, Product } from "@spree/sdk";
+
+type ProductWithMedia = Product & { media?: Media[] };
+
+import type { MetadataRoute } from "next";
+import { getStoreUrl } from "@/lib/seo";
+
+interface CountryLocale {
+  country: string;
+  locale: string;
+}
+
+/** Google's limit is 50,000 URLs per sitemap file. */
+const URLS_PER_SITEMAP = 50_000;
+const STATIC_PAGES_PER_LOCALE = 3;
+const MAX_PAGES = 1000;
+
+/**
+ * Default locale options for build-time API calls.
+ * During build (generateSitemaps / sitemap), cookies() is not available,
+ * so we pass explicit locale options to bypass the cookie-based resolution.
+ */
+function getDefaultLocaleOptions() {
+  return {
+    locale: process.env.NEXT_PUBLIC_DEFAULT_LOCALE || "en",
+    country: process.env.NEXT_PUBLIC_DEFAULT_COUNTRY || "us",
+  };
+}
+
+/**
+ * Module-level cache so that multiple sitemap({id}) calls during the same
+ * `next build` process reuse already-fetched data instead of hitting the
+ * API O(chunks) times.
+ */
+let cachedProducts: Promise<ProductWithMedia[]> | null = null;
+let cachedCategories: Promise<Category[]> | null = null;
+let cachedCountryLocales: Promise<CountryLocale[]> | null = null;
+
+function getCachedProducts(): Promise<ProductWithMedia[]> {
+  if (!cachedProducts) {
+    cachedProducts = fetchAllProducts().catch((err) => {
+      cachedProducts = null;
+      throw err;
+    });
+  }
+  return cachedProducts;
+}
+
+function getCachedCategories(): Promise<Category[]> {
+  if (!cachedCategories) {
+    cachedCategories = fetchAllCategories().catch((err) => {
+      cachedCategories = null;
+      throw err;
+    });
+  }
+  return cachedCategories;
+}
+
+function getCachedCountryLocales(): Promise<CountryLocale[]> {
+  if (!cachedCountryLocales) {
+    cachedCountryLocales = resolveCountryLocales().catch((err) => {
+      cachedCountryLocales = null;
+      throw err;
+    });
+  }
+  return cachedCountryLocales;
+}
+
+/**
+ * Splits the sitemap into multiple files when the total URL count
+ * exceeds 50,000 (Google's per-sitemap limit).
+ *
+ * Next.js generates /sitemap/0.xml, /sitemap/1.xml, etc.
+ * robots.ts references all chunks via generateSitemaps().
+ *
+ * @see https://nextjs.org/docs/app/api-reference/functions/generate-sitemaps
+ */
+export async function generateSitemaps() {
+  try {
+    const countryLocales = await getCachedCountryLocales();
+
+    // Lightweight count — fetch only 1 record per request to read meta.count.
+    // Category count is approximate (includes root categories filtered out during generation),
+    // so we may produce one extra sitemap file at most — harmless for SEO.
+    const [productCount, categoryCount] = await Promise.all([
+      fetchTotalCount("products"),
+      fetchTotalCount("categories"),
+    ]);
+
+    const urlsPerLocale =
+      STATIC_PAGES_PER_LOCALE + productCount + categoryCount;
+    const totalUrls = urlsPerLocale * countryLocales.length;
+    const sitemapCount = Math.max(1, Math.ceil(totalUrls / URLS_PER_SITEMAP));
+
+    return Array.from({ length: sitemapCount }, (_, i) => ({ id: i }));
+  } catch {
+    // API may be unavailable at build time — return a single sitemap chunk
+    // that will be populated at request time.
+    return [{ id: 0 }];
+  }
+}
+
+export default async function sitemap(props: {
+  id: Promise<string>;
+}): Promise<MetadataRoute.Sitemap> {
+  const id = Number(await props.id);
+
+  const storeUrl = getStoreUrl();
+  const baseUrl = (storeUrl || process.env.NEXT_PUBLIC_SITE_URL || "").replace(
+    /\/$/,
+    "",
+  );
+
+  if (!baseUrl) {
+    console.error(
+      "Sitemap generation skipped: neither STORE_URL nor NEXT_PUBLIC_SITE_URL is set. " +
+        "Sitemaps require absolute URLs.",
+    );
+    return [];
+  }
+
+  let countryLocales: CountryLocale[];
+  let allProducts: ProductWithMedia[];
+  let allCategories: Category[];
+
+  try {
+    [countryLocales, allProducts, allCategories] = await Promise.all([
+      getCachedCountryLocales(),
+      getCachedProducts(),
+      getCachedCategories(),
+    ]);
+  } catch (err) {
+    console.error("Sitemap generation failed: API unavailable.", err);
+    return [];
+  }
+
+  const nonRootCategories = allCategories.filter((c) => !c.is_root);
+
+  // Build entries for all locales, then slice to the requested chunk.
+  // For most stores (< 50k URLs) this produces a single chunk so no slicing occurs.
+  const now = new Date();
+  const entries: MetadataRoute.Sitemap = [];
+
+  for (const { country, locale } of countryLocales) {
+    const basePath = `${baseUrl}/${country}/${locale}`;
+
+    // Static pages
+    entries.push(
+      {
+        url: basePath,
+        lastModified: now,
+        changeFrequency: "daily",
+        priority: 1,
+      },
+      {
+        url: `${basePath}/products`,
+        lastModified: now,
+        changeFrequency: "daily",
+        priority: 0.8,
+      },
+      {
+        url: `${basePath}/c`,
+        lastModified: now,
+        changeFrequency: "weekly",
+        priority: 0.7,
+      },
+    );
+
+    // Product pages with image sitemaps
+    for (const product of allProducts) {
+      entries.push({
+        url: `${basePath}/products/${product.slug}`,
+        lastModified: new Date(),
+        changeFrequency: "weekly",
+        priority: 0.6,
+        ...(product.media && product.media.length > 0
+          ? {
+              images: product.media
+                .map((img: Media) => img.original_url)
+                .filter((url: string | null): url is string => url != null),
+            }
+          : {}),
+      });
+    }
+
+    // Category pages
+    for (const category of nonRootCategories) {
+      entries.push({
+        url: `${basePath}/c/${category.permalink}`,
+        lastModified: new Date(),
+        changeFrequency: "weekly",
+        priority: 0.5,
+      });
+    }
+  }
+
+  // Return only the slice for this sitemap chunk
+  if (id === 0 && entries.length <= URLS_PER_SITEMAP) {
+    return entries;
+  }
+  const start = id * URLS_PER_SITEMAP;
+  return entries.slice(start, start + URLS_PER_SITEMAP);
+}
+
+/**
+ * Resolves the list of country/locale pairs to include in the sitemap
+ * by fetching all markets from the Spree API. Each market contains its
+ * countries and default locale, so no env-based configuration is needed.
+ */
+async function resolveCountryLocales(): Promise<CountryLocale[]> {
+  const localeOptions = getDefaultLocaleOptions();
+  const { data: markets } = await getClient().markets.list(localeOptions);
+
+  const seen = new Set<string>();
+  const result: CountryLocale[] = [];
+
+  for (const market of markets) {
+    for (const country of market.countries ?? []) {
+      const iso = country.iso.toLowerCase();
+      if (seen.has(iso)) continue;
+      seen.add(iso);
+      result.push({
+        country: iso,
+        locale: market.default_locale || localeOptions.locale,
+      });
+    }
+  }
+
+  return result.length > 0
+    ? result
+    : [{ country: localeOptions.country, locale: localeOptions.locale }];
+}
+
+/**
+ * Fetches only the total count for products or categories without loading all data.
+ * Used by generateSitemaps() to calculate the number of sitemap files needed.
+ */
+async function fetchTotalCount(
+  resource: "products" | "categories",
+): Promise<number> {
+  const localeOptions = getDefaultLocaleOptions();
+  const client = getClient();
+  const response =
+    resource === "products"
+      ? await client.products.list({ page: 1, limit: 1 }, localeOptions)
+      : await client.categories.list({ page: 1, limit: 1 }, localeOptions);
+  return response.meta.count;
+}
+
+async function fetchAllProducts(): Promise<ProductWithMedia[]> {
+  const localeOptions = getDefaultLocaleOptions();
+  const allProducts: ProductWithMedia[] = [];
+  let page = 1;
+  let totalPages = 1;
+
+  do {
+    const response = await getClient().products.list(
+      { page, limit: 100, expand: ["media"] },
+      localeOptions,
+    );
+    allProducts.push(...(response.data as ProductWithMedia[]));
+    totalPages = response.meta.pages;
+    page++;
+  } while (page <= totalPages && page <= MAX_PAGES);
+
+  return allProducts;
+}
+
+async function fetchAllCategories(): Promise<Category[]> {
+  const localeOptions = getDefaultLocaleOptions();
+  const allCategories: Category[] = [];
+  let page = 1;
+  let totalPages = 1;
+
+  do {
+    const response = await getClient().categories.list(
+      { page, limit: 100 },
+      localeOptions,
+    );
+    allCategories.push(...response.data);
+    totalPages = response.meta.pages;
+    page++;
+  } while (page <= totalPages && page <= MAX_PAGES);
+
+  return allCategories;
+}