diff --git a/models/__init__.py b/models/__init__.py
index 533cc57..71d926d 100644
--- a/models/__init__.py
+++ b/models/__init__.py
@@ -13,6 +13,7 @@ from .ghost_membership_entities import (
 )
 
 from .calendars import Calendar, CalendarEntry, Ticket
+from .page_config import PageConfig
 
 
 
diff --git a/models/cart_item.py b/models/cart_item.py
deleted file mode 100644
index 728a747..0000000
--- a/models/cart_item.py
+++ /dev/null
@@ -1,70 +0,0 @@
-from __future__ import annotations
-
-from datetime import datetime
-
-from sqlalchemy import Integer, String, DateTime, ForeignKey, func, Index
-from sqlalchemy.orm import Mapped, mapped_column, relationship
-
-from db.base import Base  # you already import Base in app.py
-# from .user import User   # only if you normally import it here
-# from .coop import Product  # if not already in this module
-
-from .market import Product
-
-from .user import User
-
-class CartItem(Base):
-    __tablename__ = "cart_items"
-
-    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
-
-    # Either a logged-in user OR an anonymous session
-    user_id: Mapped[int | None] = mapped_column(
-        ForeignKey("users.id", ondelete="CASCADE"),
-        nullable=True,
-    )
-    session_id: Mapped[str | None] = mapped_column(
-        String(128),
-        nullable=True,
-    )
-
-    # IMPORTANT: link to product *id*, not slug
-    product_id: Mapped[int] = mapped_column(
-        ForeignKey("products.id", ondelete="CASCADE"),
-        nullable=False,
-    )
-
-    quantity: Mapped[int] = mapped_column(
-        Integer,
-        nullable=False,
-        default=1,
-        server_default="1",
-    )
-
-    created_at: Mapped[datetime] = mapped_column(
-        DateTime(timezone=True),
-        nullable=False,
-        server_default=func.now(),
-    )
-    updated_at: Mapped[datetime] = mapped_column(
-        DateTime(timezone=True),
-        nullable=False,
-        server_default=func.now(),
-    )
-    deleted_at: Mapped[datetime | None] = mapped_column(
-        DateTime(timezone=True),
-        nullable=True,
-    )
-
-    # Relationships
-   
-    product: Mapped["Product"] = relationship(
-        "Product",
-        back_populates="cart_items",
-    )
-    user: Mapped["User | None"] = relationship("User", back_populates="cart_items")
-
-    __table_args__ = (
-        Index("ix_cart_items_user_product", "user_id", "product_id"),
-        Index("ix_cart_items_session_product", "session_id", "product_id"),
-    )
diff --git a/models/ghost_content.py b/models/ghost_content.py
index be915a9..c278b4f 100644
--- a/models/ghost_content.py
+++ b/models/ghost_content.py
@@ -164,6 +164,14 @@ class Post(Base):
         order_by="MenuItem.sort_order",
     )
 
+    page_config: Mapped[Optional["PageConfig"]] = relationship(
+        "PageConfig",
+        back_populates="post",
+        uselist=False,
+        cascade="all, delete-orphan",
+        passive_deletes=True,
+    )
+
 class Author(Base):
     __tablename__ = "authors"
 
diff --git a/models/page_config.py b/models/page_config.py
new file mode 100644
index 0000000..23fa591
--- /dev/null
+++ b/models/page_config.py
@@ -0,0 +1,45 @@
+from __future__ import annotations
+
+from datetime import datetime
+from typing import Optional
+
+from sqlalchemy import Integer, String, Text, DateTime, ForeignKey, func, JSON
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from db.base import Base
+
+
+class PageConfig(Base):
+    __tablename__ = "page_configs"
+
+    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
+
+    post_id: Mapped[int] = mapped_column(
+        Integer,
+        ForeignKey("posts.id", ondelete="CASCADE"),
+        unique=True,
+        nullable=False,
+    )
+
+    features: Mapped[dict] = mapped_column(
+        JSON, nullable=False, server_default="{}"
+    )
+
+    # Phase 3: per-page SumUp credentials (NULL until configured)
+    sumup_merchant_code: Mapped[Optional[str]] = mapped_column(String(64), nullable=True)
+    sumup_api_key: Mapped[Optional[str]] = mapped_column(Text(), nullable=True)
+    sumup_checkout_prefix: Mapped[Optional[str]] = mapped_column(String(64), nullable=True)
+
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), nullable=False, server_default=func.now()
+    )
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), nullable=False, server_default=func.now()
+    )
+    deleted_at: Mapped[Optional[datetime]] = mapped_column(
+        DateTime(timezone=True), nullable=True
+    )
+
+    post: Mapped["Post"] = relationship(
+        "Post", back_populates="page_config", foreign_keys=[post_id]
+    )