diff --git a/prisma/migrations/20260530163000_add_last_booked_at_to_carbet/migration.sql b/prisma/migrations/20260530163000_add_last_booked_at_to_carbet/migration.sql
new file mode 100644
index 0000000..8df5aef
--- /dev/null
+++ b/prisma/migrations/20260530163000_add_last_booked_at_to_carbet/migration.sql
@@ -0,0 +1,2 @@
+ALTER TABLE "Carbet"
+ADD COLUMN "lastBookedAt" TIMESTAMP(3);
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 44c1455..ee7a327 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -1,8 +1,3 @@
-// This is your Prisma schema file,
-// learn more about it in the docs: https://pris.ly/d/prisma-schema
-
-// Get a free hosted Postgres database in seconds: `npx create-db`
-
 generator client {
   provider = "prisma-client"
   output   = "../src/generated/prisma"
@@ -12,4 +7,240 @@ datasource db {
   provider = "postgresql"
 }
 
-// Les modèles Karbé (carbets, réservations, utilisateurs…) seront ajoutés ici.
+enum UserRole {
+  OWNER
+  CE_MANAGER
+  CE_MEMBER
+  TOURIST
+  ADMIN
+}
+
+enum CarbetStatus {
+  DRAFT
+  PUBLISHED
+  ARCHIVED
+}
+
+enum MediaType {
+  PHOTO
+  VIDEO
+}
+
+enum AvailabilityScope {
+  PUBLIC
+  CE_ONLY
+}
+
+enum AvailabilityBlockReason {
+  NONE
+  CE_BLOCKED
+  WEEKEND_BLOCKED
+}
+
+enum BookingStatus {
+  PENDING
+  CONFIRMED
+  CANCELLED
+  COMPLETED
+}
+
+enum PaymentStatus {
+  PENDING
+  AUTHORIZED
+  SUCCEEDED
+  FAILED
+  REFUNDED
+}
+
+enum SubscriptionStatus {
+  TRIAL
+  ACTIVE
+  PAST_DUE
+  CANCELED
+}
+
+model Organization {
+  id          String   @id @default(cuid())
+  name        String
+  slug        String   @unique
+  description String?
+  createdAt   DateTime @default(now())
+  updatedAt   DateTime @updatedAt
+
+  members User[]
+
+  @@index([name])
+}
+
+model User {
+  id             String   @id @default(cuid())
+  email          String   @unique
+  passwordHash   String
+  firstName      String
+  lastName       String
+  phone          String?
+  role           UserRole
+  organizationId String?
+  avatarUrl      String?
+  isActive       Boolean  @default(true)
+  createdAt      DateTime @default(now())
+  updatedAt      DateTime @updatedAt
+
+  organization  Organization?  @relation(fields: [organizationId], references: [id], onDelete: SetNull)
+  carbets       Carbet[]       @relation("CarbetOwner")
+  bookings      Booking[]      @relation("BookingTenant")
+  reviews       Review[]       @relation("ReviewAuthor")
+  subscriptions Subscription[]
+
+  @@index([organizationId])
+  @@index([role])
+}
+
+model Carbet {
+  id                 String       @id @default(cuid())
+  ownerId            String
+  title              String
+  slug               String       @unique
+  description        String
+  river              String
+  latitude           Decimal      @db.Decimal(9, 6)
+  longitude          Decimal      @db.Decimal(9, 6)
+  embarkPoint        String
+  pirogueDurationMin Int
+  capacity           Int
+  status             CarbetStatus @default(DRAFT)
+  lastBookedAt       DateTime?
+  createdAt          DateTime     @default(now())
+  updatedAt          DateTime     @updatedAt
+
+  owner          User            @relation("CarbetOwner", fields: [ownerId], references: [id], onDelete: Restrict)
+  amenities      CarbetAmenity[]
+  media          Media[]
+  availabilities Availability[]
+  bookings       Booking[]
+  reviews        Review[]
+  subscriptions  Subscription[]
+
+  @@index([ownerId])
+  @@index([status])
+  @@index([river])
+}
+
+model Amenity {
+  id          String   @id @default(cuid())
+  key         String   @unique
+  label       String
+  description String?
+  createdAt   DateTime @default(now())
+
+  carbets CarbetAmenity[]
+}
+
+model CarbetAmenity {
+  carbetId  String
+  amenityId String
+
+  carbet  Carbet  @relation(fields: [carbetId], references: [id], onDelete: Cascade)
+  amenity Amenity @relation(fields: [amenityId], references: [id], onDelete: Cascade)
+
+  @@id([carbetId, amenityId])
+  @@index([amenityId])
+}
+
+model Media {
+  id        String    @id @default(cuid())
+  carbetId  String
+  type      MediaType
+  s3Key     String
+  s3Url     String
+  sortOrder Int       @default(0)
+  createdAt DateTime  @default(now())
+
+  carbet Carbet @relation(fields: [carbetId], references: [id], onDelete: Cascade)
+
+  @@index([carbetId, sortOrder])
+}
+
+model Availability {
+  id          String                  @id @default(cuid())
+  carbetId    String
+  startDate   DateTime
+  endDate     DateTime
+  scope       AvailabilityScope       @default(PUBLIC)
+  blockReason AvailabilityBlockReason @default(NONE)
+  isAvailable Boolean                 @default(true)
+  createdAt   DateTime                @default(now())
+  updatedAt   DateTime                @updatedAt
+
+  carbet Carbet @relation(fields: [carbetId], references: [id], onDelete: Cascade)
+
+  @@index([carbetId])
+  @@index([scope, blockReason])
+  @@index([startDate, endDate])
+}
+
+model Booking {
+  id            String        @id @default(cuid())
+  carbetId      String
+  tenantId      String
+  startDate     DateTime
+  endDate       DateTime
+  guestCount    Int
+  status        BookingStatus @default(PENDING)
+  amount        Decimal       @db.Decimal(10, 2)
+  currency      String        @default("EUR")
+  paymentStatus PaymentStatus @default(PENDING)
+  createdAt     DateTime      @default(now())
+  updatedAt     DateTime      @updatedAt
+
+  carbet Carbet @relation(fields: [carbetId], references: [id], onDelete: Restrict)
+  tenant User   @relation("BookingTenant", fields: [tenantId], references: [id], onDelete: Restrict)
+
+  review Review?
+
+  @@index([carbetId])
+  @@index([tenantId])
+  @@index([status, paymentStatus])
+  @@index([startDate, endDate])
+}
+
+model Subscription {
+  id            String             @id @default(cuid())
+  ownerId       String
+  carbetId      String
+  provider      String
+  providerSubId String?            @unique
+  status        SubscriptionStatus @default(TRIAL)
+  startedAt     DateTime           @default(now())
+  renewedAt     DateTime?
+  canceledAt    DateTime?
+  createdAt     DateTime           @default(now())
+  updatedAt     DateTime           @updatedAt
+
+  owner  User   @relation(fields: [ownerId], references: [id], onDelete: Restrict)
+  carbet Carbet @relation(fields: [carbetId], references: [id], onDelete: Cascade)
+
+  @@index([ownerId])
+  @@index([carbetId])
+  @@index([status])
+}
+
+model Review {
+  id              String    @id @default(cuid())
+  bookingId       String    @unique
+  carbetId        String
+  authorId        String
+  rating          Int
+  comment         String?
+  hostResponse    String?
+  hostRespondedAt DateTime?
+  createdAt       DateTime  @default(now())
+  updatedAt       DateTime  @updatedAt
+
+  booking Booking @relation(fields: [bookingId], references: [id], onDelete: Cascade)
+  carbet  Carbet  @relation(fields: [carbetId], references: [id], onDelete: Restrict)
+  author  User    @relation("ReviewAuthor", fields: [authorId], references: [id], onDelete: Restrict)
+
+  @@index([carbetId])
+  @@index([authorId])
+}
diff --git a/src/app/api/bookings/route.ts b/src/app/api/bookings/route.ts
new file mode 100644
index 0000000..9212ae2
--- /dev/null
+++ b/src/app/api/bookings/route.ts
@@ -0,0 +1,220 @@
+import { NextResponse } from "next/server";
+
+import { auth } from "@/auth";
+import {
+  AvailabilityScope,
+  BookingStatus,
+  CarbetStatus,
+  UserRole,
+} from "@/generated/prisma/enums";
+import {
+  enumerateUtcDays,
+  hasOverlap,
+  isPublicAllowedByDefaultPolicy,
+  isCeUserRole,
+  normalizeUtcDayStart,
+  parseIsoDate,
+} from "@/lib/booking";
+import { prisma } from "@/lib/prisma";
+
+export const runtime = "nodejs";
+
+type CreateBookingBody = {
+  carbetId?: string;
+  startDate?: string;
+  endDate?: string;
+  guestCount?: number;
+};
+
+export async function POST(request: Request) {
+  const session = await auth();
+  if (!session?.user?.id) {
+    return NextResponse.json({ error: "Non authentifié." }, { status: 401 });
+  }
+
+  let body: CreateBookingBody;
+  try {
+    body = (await request.json()) as CreateBookingBody;
+  } catch {
+    return NextResponse.json({ error: "Corps JSON invalide." }, { status: 400 });
+  }
+
+  if (!body.carbetId) {
+    return NextResponse.json({ error: "carbetId requis." }, { status: 400 });
+  }
+
+  const startDateRaw = parseIsoDate(body.startDate);
+  const endDateRaw = parseIsoDate(body.endDate);
+  const guestCount = Number(body.guestCount);
+
+  if (!startDateRaw || !endDateRaw) {
+    return NextResponse.json(
+      { error: "startDate et endDate valides sont requis." },
+      { status: 400 },
+    );
+  }
+
+  const startDate = normalizeUtcDayStart(startDateRaw);
+  const endDate = normalizeUtcDayStart(endDateRaw);
+
+  if (endDate <= startDate) {
+    return NextResponse.json(
+      { error: "La date de fin doit être après la date de début." },
+      { status: 400 },
+    );
+  }
+
+  if (!Number.isInteger(guestCount) || guestCount <= 0) {
+    return NextResponse.json(
+      { error: "guestCount doit être un entier strictement positif." },
+      { status: 400 },
+    );
+  }
+
+  const carbet = await prisma.carbet.findUnique({
+    where: { id: body.carbetId },
+    select: {
+      id: true,
+      ownerId: true,
+      capacity: true,
+      status: true,
+    },
+  });
+
+  if (!carbet) {
+    return NextResponse.json({ error: "Carbet introuvable." }, { status: 404 });
+  }
+
+  const isManager =
+    session.user.role === UserRole.ADMIN || session.user.id === carbet.ownerId;
+
+  if (!isManager && carbet.status !== CarbetStatus.PUBLISHED) {
+    return NextResponse.json({ error: "Carbet indisponible." }, { status: 404 });
+  }
+
+  if (guestCount > carbet.capacity) {
+    return NextResponse.json(
+      { error: `Capacité max dépassée (${carbet.capacity}).` },
+      { status: 400 },
+    );
+  }
+
+  const [overlappingBookings, availabilities] = await Promise.all([
+    prisma.booking.findMany({
+      where: {
+        carbetId: carbet.id,
+        status: { in: [BookingStatus.PENDING, BookingStatus.CONFIRMED] },
+        startDate: { lt: endDate },
+        endDate: { gt: startDate },
+      },
+      select: {
+        id: true,
+        startDate: true,
+        endDate: true,
+      },
+    }),
+    prisma.availability.findMany({
+      where: {
+        carbetId: carbet.id,
+        startDate: { lt: endDate },
+        endDate: { gt: startDate },
+      },
+      select: {
+        id: true,
+        startDate: true,
+        endDate: true,
+        isAvailable: true,
+        scope: true,
+      },
+    }),
+  ]);
+
+  if (overlappingBookings.length > 0) {
+    return NextResponse.json(
+      { error: "Ce créneau est déjà réservé." },
+      { status: 409 },
+    );
+  }
+
+  const ceAccess = isCeUserRole(session.user.role);
+  const days = enumerateUtcDays(startDate, endDate);
+
+  for (const day of days) {
+    const nextDay = new Date(day);
+    nextDay.setUTCDate(nextDay.getUTCDate() + 1);
+
+    const coveredSlots = availabilities.filter((a) =>
+      hasOverlap(day, nextDay, a.startDate, a.endDate),
+    );
+
+    if (coveredSlots.length === 0) {
+      const defaultAllowed = isManager || ceAccess || isPublicAllowedByDefaultPolicy(day);
+      if (defaultAllowed) {
+        continue;
+      }
+
+      return NextResponse.json(
+        {
+          error: `Créneau non réservable le ${day.toISOString().slice(0, 10)} (week-end réservé CE).`,
+        },
+        { status: 409 },
+      );
+    }
+
+    const allowedSlot = coveredSlots.find((slot) => {
+      if (!slot.isAvailable) {
+        return false;
+      }
+
+      if (slot.scope === AvailabilityScope.CE_ONLY && !ceAccess && !isManager) {
+        return false;
+      }
+
+      return true;
+    });
+
+    if (!allowedSlot) {
+      return NextResponse.json(
+        {
+          error: `Créneau non réservable le ${day.toISOString().slice(0, 10)} (restriction CE ou blocage).`,
+        },
+        { status: 409 },
+      );
+    }
+  }
+
+  const booking = await prisma.$transaction(async (tx) => {
+    const created = await tx.booking.create({
+      data: {
+        carbetId: carbet.id,
+        tenantId: session.user.id,
+        startDate,
+        endDate,
+        guestCount,
+        status: BookingStatus.PENDING,
+        amount: 0,
+        currency: "EUR",
+      },
+      select: {
+        id: true,
+        carbetId: true,
+        tenantId: true,
+        startDate: true,
+        endDate: true,
+        guestCount: true,
+        status: true,
+        paymentStatus: true,
+        createdAt: true,
+      },
+    });
+
+    await tx.carbet.update({
+      where: { id: carbet.id },
+      data: { lastBookedAt: created.createdAt },
+    });
+
+    return created;
+  });
+
+  return NextResponse.json({ booking }, { status: 201 });
+}
diff --git a/src/app/api/stripe/checkout/booking/route.ts b/src/app/api/stripe/checkout/booking/route.ts
new file mode 100644
index 0000000..4ac61b1
--- /dev/null
+++ b/src/app/api/stripe/checkout/booking/route.ts
@@ -0,0 +1,261 @@
+import { NextResponse } from "next/server";
+
+import { auth } from "@/auth";
+import {
+  AvailabilityScope,
+  BookingStatus,
+  CarbetStatus,
+  PaymentStatus,
+  UserRole,
+} from "@/generated/prisma/enums";
+import {
+  enumerateUtcDays,
+  hasOverlap,
+  isCeUserRole,
+  isPublicAllowedByDefaultPolicy,
+  normalizeUtcDayStart,
+  parseIsoDate,
+} from "@/lib/booking";
+import { prisma } from "@/lib/prisma";
+import { getStripeClient, toStripeAmountCents } from "@/lib/stripe";
+
+export const runtime = "nodejs";
+
+type BookingCheckoutBody = {
+  carbetId?: string;
+  startDate?: string;
+  endDate?: string;
+  guestCount?: number;
+  amount?: number;
+  currency?: string;
+};
+
+export async function POST(request: Request) {
+  const session = await auth();
+  if (!session?.user?.id) {
+    return NextResponse.json({ error: "Non authentifié." }, { status: 401 });
+  }
+
+  let body: BookingCheckoutBody;
+  try {
+    body = (await request.json()) as BookingCheckoutBody;
+  } catch {
+    return NextResponse.json({ error: "Corps JSON invalide." }, { status: 400 });
+  }
+
+  if (!body.carbetId) {
+    return NextResponse.json({ error: "carbetId requis." }, { status: 400 });
+  }
+
+  const startDateRaw = parseIsoDate(body.startDate);
+  const endDateRaw = parseIsoDate(body.endDate);
+  const guestCount = Number(body.guestCount);
+  const amount = Number(body.amount);
+  const currency = (body.currency ?? "EUR").toLowerCase();
+
+  if (!startDateRaw || !endDateRaw) {
+    return NextResponse.json(
+      { error: "startDate et endDate valides sont requis." },
+      { status: 400 },
+    );
+  }
+
+  const startDate = normalizeUtcDayStart(startDateRaw);
+  const endDate = normalizeUtcDayStart(endDateRaw);
+
+  if (endDate <= startDate) {
+    return NextResponse.json(
+      { error: "La date de fin doit être après la date de début." },
+      { status: 400 },
+    );
+  }
+
+  if (!Number.isInteger(guestCount) || guestCount <= 0) {
+    return NextResponse.json(
+      { error: "guestCount doit être un entier strictement positif." },
+      { status: 400 },
+    );
+  }
+
+  if (!Number.isFinite(amount) || amount <= 0) {
+    return NextResponse.json({ error: "amount doit être > 0." }, { status: 400 });
+  }
+
+  const carbet = await prisma.carbet.findUnique({
+    where: { id: body.carbetId },
+    select: {
+      id: true,
+      ownerId: true,
+      title: true,
+      capacity: true,
+      status: true,
+    },
+  });
+
+  if (!carbet) {
+    return NextResponse.json({ error: "Carbet introuvable." }, { status: 404 });
+  }
+
+  const isManager =
+    session.user.role === UserRole.ADMIN || session.user.id === carbet.ownerId;
+
+  if (!isManager && carbet.status !== CarbetStatus.PUBLISHED) {
+    return NextResponse.json({ error: "Carbet indisponible." }, { status: 404 });
+  }
+
+  if (guestCount > carbet.capacity) {
+    return NextResponse.json(
+      { error: `Capacité max dépassée (${carbet.capacity}).` },
+      { status: 400 },
+    );
+  }
+
+  const [overlappingBookings, availabilities] = await Promise.all([
+    prisma.booking.findMany({
+      where: {
+        carbetId: carbet.id,
+        status: { in: [BookingStatus.PENDING, BookingStatus.CONFIRMED] },
+        startDate: { lt: endDate },
+        endDate: { gt: startDate },
+      },
+      select: { id: true, startDate: true, endDate: true },
+    }),
+    prisma.availability.findMany({
+      where: {
+        carbetId: carbet.id,
+        startDate: { lt: endDate },
+        endDate: { gt: startDate },
+      },
+      select: {
+        id: true,
+        startDate: true,
+        endDate: true,
+        isAvailable: true,
+        scope: true,
+      },
+    }),
+  ]);
+
+  if (overlappingBookings.length > 0) {
+    return NextResponse.json(
+      { error: "Ce créneau est déjà réservé." },
+      { status: 409 },
+    );
+  }
+
+  const ceAccess = isCeUserRole(session.user.role);
+  const days = enumerateUtcDays(startDate, endDate);
+
+  for (const day of days) {
+    const nextDay = new Date(day);
+    nextDay.setUTCDate(nextDay.getUTCDate() + 1);
+
+    const coveredSlots = availabilities.filter((a) =>
+      hasOverlap(day, nextDay, a.startDate, a.endDate),
+    );
+
+    if (coveredSlots.length === 0) {
+      const defaultAllowed = isManager || ceAccess || isPublicAllowedByDefaultPolicy(day);
+      if (defaultAllowed) {
+        continue;
+      }
+
+      return NextResponse.json(
+        {
+          error: `Créneau non réservable le ${day.toISOString().slice(0, 10)} (week-end réservé CE).`,
+        },
+        { status: 409 },
+      );
+    }
+
+    const allowedSlot = coveredSlots.find((slot) => {
+      if (!slot.isAvailable) {
+        return false;
+      }
+
+      if (slot.scope === AvailabilityScope.CE_ONLY && !ceAccess && !isManager) {
+        return false;
+      }
+
+      return true;
+    });
+
+    if (!allowedSlot) {
+      return NextResponse.json(
+        {
+          error: `Créneau non réservable le ${day.toISOString().slice(0, 10)} (restriction CE ou blocage).`,
+        },
+        { status: 409 },
+      );
+    }
+  }
+
+  const booking = await prisma.$transaction(async (tx) => {
+    const created = await tx.booking.create({
+      data: {
+        carbetId: carbet.id,
+        tenantId: session.user.id,
+        startDate,
+        endDate,
+        guestCount,
+        status: BookingStatus.PENDING,
+        paymentStatus: PaymentStatus.PENDING,
+        amount,
+        currency: currency.toUpperCase(),
+      },
+      select: {
+        id: true,
+        amount: true,
+        currency: true,
+        startDate: true,
+        endDate: true,
+      },
+    });
+
+    await tx.carbet.update({
+      where: { id: carbet.id },
+      data: { lastBookedAt: new Date() },
+    });
+
+    return created;
+  });
+
+  const appUrl = process.env.APP_URL;
+  if (!appUrl) {
+    return NextResponse.json({ error: "APP_URL manquante." }, { status: 500 });
+  }
+
+  const stripe = getStripeClient();
+  const checkoutSession = await stripe.checkout.sessions.create({
+    mode: "payment",
+    success_url: `${appUrl}/reservations/${booking.id}?payment=success`,
+    cancel_url: `${appUrl}/reservations/${booking.id}?payment=cancel`,
+    customer_email: session.user.email ?? undefined,
+    line_items: [
+      {
+        quantity: 1,
+        price_data: {
+          currency,
+          unit_amount: toStripeAmountCents(amount),
+          product_data: {
+            name: `Réservation carbet: ${carbet.title}`,
+            description: `${booking.startDate.toISOString().slice(0, 10)} au ${booking.endDate.toISOString().slice(0, 10)}`,
+          },
+        },
+      },
+    ],
+    metadata: {
+      bookingId: booking.id,
+      type: "booking",
+    },
+  });
+
+  return NextResponse.json(
+    {
+      bookingId: booking.id,
+      checkoutSessionId: checkoutSession.id,
+      checkoutUrl: checkoutSession.url,
+    },
+    { status: 201 },
+  );
+}