Merge pull request #1 from pdf114514/copilot/create-car-rental-schedule-system

Add car rental schedule management system (React+Vite + Express+SQLite)
2026-03-21 03:07:15 +09:00
parent 13b8998bf0 50d3803610
commit 19953dff55
22 changed files with 4500 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,6 @@
+node_modules/
+dist/
+*.db
+*.db-journal
+.env
+.DS_Store
--- a/README.md
+++ b/README.md
@@ -1 +1,65 @@
 # CarReservation
+
+代車スケジュール管理システム — Car Rental Schedule Management System
+
+## Overview
+
+A web application for managing loaner car (代車) schedules at an auto shop.
+
+- **Frontend**: React + Vite
+- **Backend**: Express + SQLite (better-sqlite3)
+
+## Features
+
+- **Schedule View**: Table with cars as rows and dates as columns (21 days)
+- **Drag to Create**: Click and drag horizontally on empty cells to create a reservation
+- **Drag to Move**: Drag existing reservation blocks to move them to a new date/car
+- **Reservation Modal**: Create or edit reservations with car, dates, customer name, and notes
+- **Car Management**: Add, edit, and delete loaner cars
+
+## Getting Started
+
+### Prerequisites
+
+- Node.js 18+
+
+### Setup
+
+```bash
+# Install root dependencies (concurrently for dev)
+npm install
+
+# Install backend dependencies
+cd backend && npm install && cd ..
+
+# Install frontend dependencies
+cd frontend && npm install && cd ..
+```
+
+### Running
+
+```bash
+# Start backend (port 3001)
+npm run dev:backend
+
+# Start frontend (port 5173) in another terminal
+npm run dev:frontend
+
+# Or start both concurrently
+npm run dev
+```
+
+Open http://localhost:5173 in your browser.
+
+### API Endpoints
+
+| Method | Path | Description |
+|--------|------|-------------|
+| GET | /api/cars | List all cars |
+| POST | /api/cars | Create a car |
+| PUT | /api/cars/:id | Update a car |
+| DELETE | /api/cars/:id | Delete a car (cascades to reservations) |
+| GET | /api/reservations | List all reservations |
+| POST | /api/reservations | Create a reservation |
+| PUT | /api/reservations/:id | Update a reservation |
+| DELETE | /api/reservations/:id | Delete a reservation |
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
--- a/backend/package.json
+++ b/backend/package.json
@@ -0,0 +1,21 @@
+{
+  "name": "backend",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "start": "node server.js",
+    "dev": "node server.js",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "type": "commonjs",
+  "dependencies": {
+    "better-sqlite3": "^12.8.0",
+    "cors": "^2.8.6",
+    "express": "^5.2.1",
+    "express-rate-limit": "^8.3.1"
+  }
+}
--- a/backend/server.js
+++ b/backend/server.js
@@ -0,0 +1,140 @@
+const express = require('express');
+const cors = require('cors');
+const rateLimit = require('express-rate-limit');
+const Database = require('better-sqlite3');
+const path = require('path');
+
+const app = express();
+const PORT = process.env.PORT || 3001;
+
+app.use(cors());
+app.use(express.json());
+
+// Apply rate limiting to all API routes
+const apiLimiter = rateLimit({
+  windowMs: 15 * 60 * 1000, // 15 minutes
+  max: 300, // limit each IP to 300 requests per windowMs
+  standardHeaders: true,
+  legacyHeaders: false,
+  message: { error: 'リクエストが多すぎます。しばらくしてから再試行してください。' },
+});
+app.use('/api', apiLimiter);
+
+const dbPath = path.join(__dirname, 'data.db');
+const db = new Database(dbPath);
+
+// Initialize database schema
+db.exec(`
+  CREATE TABLE IF NOT EXISTS cars (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name TEXT NOT NULL,
+    description TEXT DEFAULT ''
+  );
+
+  CREATE TABLE IF NOT EXISTS reservations (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    car_id INTEGER NOT NULL,
+    start_date TEXT NOT NULL,
+    end_date TEXT NOT NULL,
+    customer_name TEXT DEFAULT '',
+    notes TEXT DEFAULT '',
+    FOREIGN KEY (car_id) REFERENCES cars(id) ON DELETE CASCADE
+  );
+`);
+
+// Seed some initial cars if none exist
+const carCount = db.prepare('SELECT COUNT(*) as cnt FROM cars').get();
+if (carCount.cnt === 0) {
+  const insertCar = db.prepare('INSERT INTO cars (name, description) VALUES (?, ?)');
+  insertCar.run('代車 A', '');
+  insertCar.run('代車 B', '');
+  insertCar.run('代車 C', '');
+}
+
+// --- Cars API ---
+app.get('/api/cars', (req, res) => {
+  const cars = db.prepare('SELECT * FROM cars ORDER BY id').all();
+  res.json(cars);
+});
+
+app.post('/api/cars', (req, res) => {
+  const { name, description = '' } = req.body;
+  if (!name || !name.trim()) {
+    return res.status(400).json({ error: '車名は必須です' });
+  }
+  const result = db.prepare('INSERT INTO cars (name, description) VALUES (?, ?)').run(name.trim(), description);
+  const car = db.prepare('SELECT * FROM cars WHERE id = ?').get(result.lastInsertRowid);
+  res.status(201).json(car);
+});
+
+app.put('/api/cars/:id', (req, res) => {
+  const { name, description } = req.body;
+  if (!name || !name.trim()) {
+    return res.status(400).json({ error: '車名は必須です' });
+  }
+  const result = db.prepare('UPDATE cars SET name = ?, description = ? WHERE id = ?').run(name.trim(), description ?? '', req.params.id);
+  if (result.changes === 0) {
+    return res.status(404).json({ error: '車が見つかりません' });
+  }
+  const car = db.prepare('SELECT * FROM cars WHERE id = ?').get(req.params.id);
+  res.json(car);
+});
+
+app.delete('/api/cars/:id', (req, res) => {
+  const result = db.prepare('DELETE FROM cars WHERE id = ?').run(req.params.id);
+  if (result.changes === 0) {
+    return res.status(404).json({ error: '車が見つかりません' });
+  }
+  res.json({ success: true });
+});
+
+// --- Reservations API ---
+app.get('/api/reservations', (req, res) => {
+  const reservations = db.prepare('SELECT * FROM reservations ORDER BY start_date').all();
+  res.json(reservations);
+});
+
+app.post('/api/reservations', (req, res) => {
+  const { car_id, start_date, end_date, customer_name = '', notes = '' } = req.body;
+  if (!car_id || !start_date || !end_date) {
+    return res.status(400).json({ error: 'car_id, start_date, end_date は必須です' });
+  }
+  if (start_date > end_date) {
+    return res.status(400).json({ error: '開始日は終了日以前である必要があります' });
+  }
+  const result = db.prepare(
+    'INSERT INTO reservations (car_id, start_date, end_date, customer_name, notes) VALUES (?, ?, ?, ?, ?)'
+  ).run(car_id, start_date, end_date, customer_name, notes);
+  const reservation = db.prepare('SELECT * FROM reservations WHERE id = ?').get(result.lastInsertRowid);
+  res.status(201).json(reservation);
+});
+
+app.put('/api/reservations/:id', (req, res) => {
+  const { car_id, start_date, end_date, customer_name, notes } = req.body;
+  if (!car_id || !start_date || !end_date) {
+    return res.status(400).json({ error: 'car_id, start_date, end_date は必須です' });
+  }
+  if (start_date > end_date) {
+    return res.status(400).json({ error: '開始日は終了日以前である必要があります' });
+  }
+  const result = db.prepare(
+    'UPDATE reservations SET car_id = ?, start_date = ?, end_date = ?, customer_name = ?, notes = ? WHERE id = ?'
+  ).run(car_id, start_date, end_date, customer_name ?? '', notes ?? '', req.params.id);
+  if (result.changes === 0) {
+    return res.status(404).json({ error: '予約が見つかりません' });
+  }
+  const reservation = db.prepare('SELECT * FROM reservations WHERE id = ?').get(req.params.id);
+  res.json(reservation);
+});
+
+app.delete('/api/reservations/:id', (req, res) => {
+  const result = db.prepare('DELETE FROM reservations WHERE id = ?').run(req.params.id);
+  if (result.changes === 0) {
+    return res.status(404).json({ error: '予約が見つかりません' });
+  }
+  res.json({ success: true });
+});
+
+app.listen(PORT, () => {
+  console.log(`Server running on http://localhost:${PORT}`);
+});
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -0,0 +1,12 @@
+<!doctype html>
+<html lang="ja">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>代車スケジュール管理</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.jsx"></script>
+  </body>
+</html>
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -0,0 +1,895 @@
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+      }
+    },
+    "node_modules/rolldown/node_modules/@rolldown/pluginutils": {
+      "version": "1.0.0-rc.10",
+      "resolved": "https://registry.npmjs.org/@rolldown/pluginutils/-/pluginutils-1.0.0-rc.10.tgz",
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+      "license": "MIT"
+    },
+    "node_modules/scheduler": {
+      "version": "0.27.0",
+      "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.27.0.tgz",
+      "integrity": "sha512-eNv+WrVbKu1f3vbYJT/xtiF5syA5HPIMtf9IgY/nKg0sWqzAUEvqY/xm7OcZc/qafLx/iO9FgOmeSAp4v5ti/Q==",
+      "license": "MIT"
+    },
+    "node_modules/source-map-js": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz",
+      "integrity": "sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA==",
+      "license": "BSD-3-Clause",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/tinyglobby": {
+      "version": "0.2.15",
+      "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.15.tgz",
+      "integrity": "sha512-j2Zq4NyQYG5XMST4cbs02Ak8iJUdxRM0XI5QyxXuZOzKOINmWurp3smXu3y5wDcJrptwpSjgXHzIQxR0omXljQ==",
+      "license": "MIT",
+      "dependencies": {
+        "fdir": "^6.5.0",
+        "picomatch": "^4.0.3"
+      },
+      "engines": {
+        "node": ">=12.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/SuperchupuDev"
+      }
+    },
+    "node_modules/tslib": {
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
+      "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
+      "license": "0BSD",
+      "optional": true
+    },
+    "node_modules/vite": {
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/vite/-/vite-8.0.1.tgz",
+      "integrity": "sha512-wt+Z2qIhfFt85uiyRt5LPU4oVEJBXj8hZNWKeqFG4gRG/0RaRGJ7njQCwzFVjO+v4+Ipmf5CY7VdmZRAYYBPHw==",
+      "license": "MIT",
+      "dependencies": {
+        "lightningcss": "^1.32.0",
+        "picomatch": "^4.0.3",
+        "postcss": "^8.5.8",
+        "rolldown": "1.0.0-rc.10",
+        "tinyglobby": "^0.2.15"
+      },
+      "bin": {
+        "vite": "bin/vite.js"
+      },
+      "engines": {
+        "node": "^20.19.0 || >=22.12.0"
+      },
+      "funding": {
+        "url": "https://github.com/vitejs/vite?sponsor=1"
+      },
+      "optionalDependencies": {
+        "fsevents": "~2.3.3"
+      },
+      "peerDependencies": {
+        "@types/node": "^20.19.0 || >=22.12.0",
+        "@vitejs/devtools": "^0.1.0",
+        "esbuild": "^0.27.0",
+        "jiti": ">=1.21.0",
+        "less": "^4.0.0",
+        "sass": "^1.70.0",
+        "sass-embedded": "^1.70.0",
+        "stylus": ">=0.54.8",
+        "sugarss": "^5.0.0",
+        "terser": "^5.16.0",
+        "tsx": "^4.8.1",
+        "yaml": "^2.4.2"
+      },
+      "peerDependenciesMeta": {
+        "@types/node": {
+          "optional": true
+        },
+        "@vitejs/devtools": {
+          "optional": true
+        },
+        "esbuild": {
+          "optional": true
+        },
+        "jiti": {
+          "optional": true
+        },
+        "less": {
+          "optional": true
+        },
+        "sass": {
+          "optional": true
+        },
+        "sass-embedded": {
+          "optional": true
+        },
+        "stylus": {
+          "optional": true
+        },
+        "sugarss": {
+          "optional": true
+        },
+        "terser": {
+          "optional": true
+        },
+        "tsx": {
+          "optional": true
+        },
+        "yaml": {
+          "optional": true
+        }
+      }
+    }
+  }
+}
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -0,0 +1,18 @@
+{
+  "name": "frontend",
+  "version": "1.0.0",
+  "description": "Car Reservation Frontend",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "@vitejs/plugin-react": "^6.0.1",
+    "date-fns": "^4.1.0",
+    "react": "^19.2.4",
+    "react-dom": "^19.2.4",
+    "vite": "^8.0.1"
+  }
+}
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -0,0 +1,33 @@
+import { useState } from 'react';
+import ScheduleView from './components/ScheduleView.jsx';
+import CarManagement from './components/CarManagement.jsx';
+import styles from './App.module.css';
+
+export default function App() {
+  const [page, setPage] = useState('schedule');
+
+  return (
+    <div className={styles.app}>
+      <header className={styles.header}>
+        <h1 className={styles.title}>🚗 代車スケジュール管理</h1>
+        <nav className={styles.nav}>
+          <button
+            className={`${styles.navBtn} ${page === 'schedule' ? styles.active : ''}`}
+            onClick={() => setPage('schedule')}
+          >
+            📅 スケジュール
+          </button>
+          <button
+            className={`${styles.navBtn} ${page === 'cars' ? styles.active : ''}`}
+            onClick={() => setPage('cars')}
+          >
+            🚙 代車管理
+          </button>
+        </nav>
+      </header>
+      <main className={styles.main}>
+        {page === 'schedule' ? <ScheduleView /> : <CarManagement />}
+      </main>
+    </div>
+  );
+}
--- a/frontend/src/App.module.css
+++ b/frontend/src/App.module.css
@@ -0,0 +1,56 @@
+.app {
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+}
+
+.header {
+  background: #1a56db;
+  color: white;
+  padding: 0 24px;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  height: 56px;
+  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
+  position: sticky;
+  top: 0;
+  z-index: 100;
+}
+
+.title {
+  font-size: 20px;
+  font-weight: 700;
+  letter-spacing: 0.5px;
+}
+
+.nav {
+  display: flex;
+  gap: 8px;
+}
+
+.navBtn {
+  background: rgba(255,255,255,0.15);
+  border: 1px solid rgba(255,255,255,0.3);
+  color: white;
+  padding: 6px 16px;
+  border-radius: 6px;
+  font-size: 14px;
+  font-weight: 500;
+  transition: background 0.15s;
+}
+
+.navBtn:hover {
+  background: rgba(255,255,255,0.25);
+}
+
+.navBtn.active {
+  background: white;
+  color: #1a56db;
+  border-color: white;
+}
+
+.main {
+  flex: 1;
+  overflow: hidden;
+}
--- a/frontend/src/api.js
+++ b/frontend/src/api.js
@@ -0,0 +1,27 @@
+const API_BASE = '/api';
+
+async function request(path, options = {}) {
+  const res = await fetch(`${API_BASE}${path}`, {
+    headers: { 'Content-Type': 'application/json' },
+    ...options,
+  });
+  if (!res.ok) {
+    const err = await res.json().catch(() => ({ error: 'Unknown error' }));
+    throw new Error(err.error || `HTTP ${res.status}`);
+  }
+  return res.json();
+}
+
+export const api = {
+  // Cars
+  getCars: () => request('/cars'),
+  createCar: (data) => request('/cars', { method: 'POST', body: JSON.stringify(data) }),
+  updateCar: (id, data) => request(`/cars/${id}`, { method: 'PUT', body: JSON.stringify(data) }),
+  deleteCar: (id) => request(`/cars/${id}`, { method: 'DELETE' }),
+
+  // Reservations
+  getReservations: () => request('/reservations'),
+  createReservation: (data) => request('/reservations', { method: 'POST', body: JSON.stringify(data) }),
+  updateReservation: (id, data) => request(`/reservations/${id}`, { method: 'PUT', body: JSON.stringify(data) }),
+  deleteReservation: (id) => request(`/reservations/${id}`, { method: 'DELETE' }),
+};
--- a/frontend/src/components/CarManagement.jsx
+++ b/frontend/src/components/CarManagement.jsx
@@ -0,0 +1,191 @@
+import { useState, useEffect } from 'react';
+import { api } from '../api.js';
+import styles from './CarManagement.module.css';
+
+export default function CarManagement() {
+  const [cars, setCars] = useState([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState(null);
+  const [newCarName, setNewCarName] = useState('');
+  const [newCarDesc, setNewCarDesc] = useState('');
+  const [editingId, setEditingId] = useState(null);
+  const [editName, setEditName] = useState('');
+  const [editDesc, setEditDesc] = useState('');
+  const [submitting, setSubmitting] = useState(false);
+
+  const loadCars = async () => {
+    try {
+      setLoading(true);
+      const data = await api.getCars();
+      setCars(data);
+      setError(null);
+    } catch (e) {
+      setError(e.message);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  useEffect(() => {
+    loadCars();
+  }, []);
+
+  const handleAdd = async (e) => {
+    e.preventDefault();
+    if (!newCarName.trim()) return;
+    try {
+      setSubmitting(true);
+      await api.createCar({ name: newCarName.trim(), description: newCarDesc.trim() });
+      setNewCarName('');
+      setNewCarDesc('');
+      await loadCars();
+    } catch (e) {
+      setError(e.message);
+    } finally {
+      setSubmitting(false);
+    }
+  };
+
+  const handleDelete = async (id, name) => {
+    if (!confirm(`「${name}」を削除しますか？\n関連する予約もすべて削除されます。`)) return;
+    try {
+      await api.deleteCar(id);
+      await loadCars();
+    } catch (e) {
+      setError(e.message);
+    }
+  };
+
+  const startEdit = (car) => {
+    setEditingId(car.id);
+    setEditName(car.name);
+    setEditDesc(car.description || '');
+  };
+
+  const cancelEdit = () => {
+    setEditingId(null);
+    setEditName('');
+    setEditDesc('');
+  };
+
+  const handleUpdate = async (id) => {
+    if (!editName.trim()) return;
+    try {
+      setSubmitting(true);
+      await api.updateCar(id, { name: editName.trim(), description: editDesc.trim() });
+      cancelEdit();
+      await loadCars();
+    } catch (e) {
+      setError(e.message);
+    } finally {
+      setSubmitting(false);
+    }
+  };
+
+  return (
+    <div className={styles.container}>
+      <h2 className={styles.heading}>代車管理</h2>
+
+      <div className={styles.addCard}>
+        <h3 className={styles.subHeading}>代車を追加</h3>
+        <form className={styles.form} onSubmit={handleAdd}>
+          <div className={styles.formRow}>
+            <input
+              type="text"
+              className={styles.input}
+              placeholder="車名（例：プリウス A）"
+              value={newCarName}
+              onChange={(e) => setNewCarName(e.target.value)}
+              required
+            />
+            <input
+              type="text"
+              className={styles.input}
+              placeholder="備考（任意）"
+              value={newCarDesc}
+              onChange={(e) => setNewCarDesc(e.target.value)}
+            />
+            <button type="submit" className={styles.btnPrimary} disabled={submitting || !newCarName.trim()}>
+              + 追加
+            </button>
+          </div>
+        </form>
+      </div>
+
+      {loading && <p className={styles.message}>読み込み中...</p>}
+      {error && <p className={styles.error}>エラー: {error}</p>}
+
+      {!loading && !error && (
+        <div className={styles.tableWrapper}>
+          <table className={styles.table}>
+            <thead>
+              <tr>
+                <th>ID</th>
+                <th>車名</th>
+                <th>備考</th>
+                <th>操作</th>
+              </tr>
+            </thead>
+            <tbody>
+              {cars.length === 0 && (
+                <tr>
+                  <td colSpan={4} className={styles.empty}>代車がありません</td>
+                </tr>
+              )}
+              {cars.map((car) => (
+                <tr key={car.id}>
+                  <td className={styles.idCell}>{car.id}</td>
+                  {editingId === car.id ? (
+                    <>
+                      <td>
+                        <input
+                          type="text"
+                          className={styles.input}
+                          value={editName}
+                          onChange={(e) => setEditName(e.target.value)}
+                        />
+                      </td>
+                      <td>
+                        <input
+                          type="text"
+                          className={styles.input}
+                          value={editDesc}
+                          onChange={(e) => setEditDesc(e.target.value)}
+                        />
+                      </td>
+                      <td className={styles.actions}>
+                        <button
+                          className={styles.btnSave}
+                          onClick={() => handleUpdate(car.id)}
+                          disabled={submitting}
+                        >
+                          保存
+                        </button>
+                        <button className={styles.btnCancel} onClick={cancelEdit}>
+                          キャンセル
+                        </button>
+                      </td>
+                    </>
+                  ) : (
+                    <>
+                      <td>{car.name}</td>
+                      <td className={styles.descCell}>{car.description || '-'}</td>
+                      <td className={styles.actions}>
+                        <button className={styles.btnEdit} onClick={() => startEdit(car)}>
+                          編集
+                        </button>
+                        <button className={styles.btnDelete} onClick={() => handleDelete(car.id, car.name)}>
+                          削除
+                        </button>
+                      </td>
+                    </>
+                  )}
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </div>
+      )}
+    </div>
+  );
+}
--- a/frontend/src/components/CarManagement.module.css
+++ b/frontend/src/components/CarManagement.module.css
@@ -0,0 +1,201 @@
+.container {
+  max-width: 900px;
+  margin: 32px auto;
+  padding: 0 24px;
+}
+
+.heading {
+  font-size: 22px;
+  font-weight: 700;
+  margin-bottom: 24px;
+  color: #1a56db;
+}
+
+.subHeading {
+  font-size: 16px;
+  font-weight: 600;
+  margin-bottom: 12px;
+  color: #374151;
+}
+
+.addCard {
+  background: white;
+  border-radius: 10px;
+  padding: 20px;
+  margin-bottom: 24px;
+  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
+}
+
+.form {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.formRow {
+  display: flex;
+  gap: 12px;
+  align-items: center;
+  flex-wrap: wrap;
+}
+
+.input {
+  border: 1.5px solid #d1d5db;
+  border-radius: 6px;
+  padding: 8px 12px;
+  font-size: 14px;
+  outline: none;
+  transition: border-color 0.15s;
+  flex: 1;
+  min-width: 120px;
+}
+
+.input:focus {
+  border-color: #1a56db;
+}
+
+.btnPrimary {
+  background: #1a56db;
+  color: white;
+  border: none;
+  padding: 8px 20px;
+  border-radius: 6px;
+  font-size: 14px;
+  font-weight: 600;
+  white-space: nowrap;
+  transition: background 0.15s;
+}
+
+.btnPrimary:hover:not(:disabled) {
+  background: #1447c0;
+}
+
+.btnPrimary:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
+}
+
+.tableWrapper {
+  background: white;
+  border-radius: 10px;
+  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
+  overflow: hidden;
+}
+
+.table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: 14px;
+}
+
+.table th {
+  background: #f3f4f6;
+  padding: 12px 16px;
+  text-align: left;
+  font-weight: 600;
+  color: #374151;
+  border-bottom: 1.5px solid #e5e7eb;
+}
+
+.table td {
+  padding: 12px 16px;
+  border-bottom: 1px solid #f0f0f0;
+  vertical-align: middle;
+}
+
+.table tr:last-child td {
+  border-bottom: none;
+}
+
+.table tbody tr:hover {
+  background: #fafafa;
+}
+
+.idCell {
+  color: #9ca3af;
+  width: 50px;
+}
+
+.descCell {
+  color: #6b7280;
+}
+
+.actions {
+  display: flex;
+  gap: 8px;
+}
+
+.btnEdit {
+  background: #f3f4f6;
+  border: 1px solid #d1d5db;
+  color: #374151;
+  padding: 5px 14px;
+  border-radius: 5px;
+  font-size: 13px;
+  transition: background 0.15s;
+}
+
+.btnEdit:hover {
+  background: #e5e7eb;
+}
+
+.btnDelete {
+  background: #fee2e2;
+  border: 1px solid #fca5a5;
+  color: #dc2626;
+  padding: 5px 14px;
+  border-radius: 5px;
+  font-size: 13px;
+  transition: background 0.15s;
+}
+
+.btnDelete:hover {
+  background: #fecaca;
+}
+
+.btnSave {
+  background: #d1fae5;
+  border: 1px solid #6ee7b7;
+  color: #059669;
+  padding: 5px 14px;
+  border-radius: 5px;
+  font-size: 13px;
+  transition: background 0.15s;
+}
+
+.btnSave:hover:not(:disabled) {
+  background: #a7f3d0;
+}
+
+.btnCancel {
+  background: #f3f4f6;
+  border: 1px solid #d1d5db;
+  color: #6b7280;
+  padding: 5px 14px;
+  border-radius: 5px;
+  font-size: 13px;
+}
+
+.btnCancel:hover {
+  background: #e5e7eb;
+}
+
+.message {
+  text-align: center;
+  color: #6b7280;
+  padding: 24px;
+}
+
+.error {
+  color: #dc2626;
+  background: #fee2e2;
+  padding: 12px 16px;
+  border-radius: 6px;
+  margin-bottom: 16px;
+}
+
+.empty {
+  text-align: center;
+  color: #9ca3af;
+  padding: 32px;
+}
--- a/frontend/src/components/ReservationModal.jsx
+++ b/frontend/src/components/ReservationModal.jsx
@@ -0,0 +1,152 @@
+import { useState, useEffect } from 'react';
+import { format } from 'date-fns';
+import styles from './ReservationModal.module.css';
+
+export default function ReservationModal({ cars, reservation, onSave, onDelete, onClose }) {
+  const isEdit = !!reservation?.id;
+
+  const [carId, setCarId] = useState('');
+  const [startDate, setStartDate] = useState('');
+  const [endDate, setEndDate] = useState('');
+  const [customerName, setCustomerName] = useState('');
+  const [notes, setNotes] = useState('');
+  const [submitting, setSubmitting] = useState(false);
+
+  useEffect(() => {
+    if (reservation) {
+      setCarId(String(reservation.car_id || (cars[0]?.id ?? '')));
+      setStartDate(reservation.start_date || format(new Date(), 'yyyy-MM-dd'));
+      setEndDate(reservation.end_date || format(new Date(), 'yyyy-MM-dd'));
+      setCustomerName(reservation.customer_name || '');
+      setNotes(reservation.notes || '');
+    }
+  }, [reservation, cars]);
+
+  const handleSubmit = async (e) => {
+    e.preventDefault();
+    if (!carId || !startDate || !endDate) return;
+    if (startDate > endDate) {
+      alert('開始日は終了日以前に設定してください');
+      return;
+    }
+    try {
+      setSubmitting(true);
+      await onSave({
+        car_id: Number(carId),
+        start_date: startDate,
+        end_date: endDate,
+        customer_name: customerName,
+        notes,
+      });
+    } finally {
+      setSubmitting(false);
+    }
+  };
+
+  const handleDelete = async () => {
+    if (!confirm('この予約を削除しますか？')) return;
+    try {
+      setSubmitting(true);
+      await onDelete(reservation.id);
+    } finally {
+      setSubmitting(false);
+    }
+  };
+
+  return (
+    <div className={styles.overlay} onMouseDown={(e) => e.target === e.currentTarget && onClose()}>
+      <div className={styles.modal}>
+        <div className={styles.modalHeader}>
+          <h2 className={styles.modalTitle}>
+            {isEdit ? '予約を編集' : '新しい予約を作成'}
+          </h2>
+          <button className={styles.closeBtn} onClick={onClose}>✕</button>
+        </div>
+
+        <form className={styles.form} onSubmit={handleSubmit}>
+          <div className={styles.field}>
+            <label className={styles.label}>代車 <span className={styles.required}>*</span></label>
+            <select
+              className={styles.select}
+              value={carId}
+              onChange={(e) => setCarId(e.target.value)}
+              required
+            >
+              <option value="">選択してください</option>
+              {cars.map((car) => (
+                <option key={car.id} value={car.id}>{car.name}</option>
+              ))}
+            </select>
+          </div>
+
+          <div className={styles.fieldRow}>
+            <div className={styles.field}>
+              <label className={styles.label}>開始日 <span className={styles.required}>*</span></label>
+              <input
+                type="date"
+                className={styles.input}
+                value={startDate}
+                onChange={(e) => setStartDate(e.target.value)}
+                required
+              />
+            </div>
+            <div className={styles.field}>
+              <label className={styles.label}>終了日 <span className={styles.required}>*</span></label>
+              <input
+                type="date"
+                className={styles.input}
+                value={endDate}
+                min={startDate}
+                onChange={(e) => setEndDate(e.target.value)}
+                required
+              />
+            </div>
+          </div>
+
+          <div className={styles.field}>
+            <label className={styles.label}>お客様名</label>
+            <input
+              type="text"
+              className={styles.input}
+              placeholder="例：山田 太郎"
+              value={customerName}
+              onChange={(e) => setCustomerName(e.target.value)}
+            />
+          </div>
+
+          <div className={styles.field}>
+            <label className={styles.label}>備考</label>
+            <textarea
+              className={styles.textarea}
+              placeholder="メモを入力..."
+              value={notes}
+              onChange={(e) => setNotes(e.target.value)}
+              rows={3}
+            />
+          </div>
+
+          <div className={styles.actions}>
+            {isEdit && (
+              <button
+                type="button"
+                className={styles.btnDelete}
+                onClick={handleDelete}
+                disabled={submitting}
+              >
+                削除
+              </button>
+            )}
+            <div className={styles.rightActions}>
+              <button type="button" className={styles.btnCancel} onClick={onClose} disabled={submitting}>
+                キャンセル
+              </button>
+              <button type="submit" className={styles.btnSave} disabled={submitting}>
+                {submitting ? '保存中...' : (isEdit ? '更新' : '作成')}
+              </button>
+            </div>
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+}
--- a/frontend/src/components/ReservationModal.module.css
+++ b/frontend/src/components/ReservationModal.module.css
@@ -0,0 +1,177 @@
+.overlay {
+  position: fixed;
+  inset: 0;
+  background: rgba(0,0,0,0.45);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 1000;
+  padding: 16px;
+}
+
+.modal {
+  background: white;
+  border-radius: 12px;
+  width: 100%;
+  max-width: 520px;
+  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
+  overflow: hidden;
+}
+
+.modalHeader {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 20px 24px 16px;
+  border-bottom: 1px solid #e5e7eb;
+}
+
+.modalTitle {
+  font-size: 18px;
+  font-weight: 700;
+  color: #111827;
+}
+
+.closeBtn {
+  background: none;
+  border: none;
+  font-size: 18px;
+  color: #6b7280;
+  width: 32px;
+  height: 32px;
+  border-radius: 6px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  transition: background 0.15s;
+}
+
+.closeBtn:hover {
+  background: #f3f4f6;
+  color: #374151;
+}
+
+.form {
+  padding: 20px 24px 24px;
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+}
+
+.field {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  flex: 1;
+}
+
+.fieldRow {
+  display: flex;
+  gap: 16px;
+}
+
+.label {
+  font-size: 13px;
+  font-weight: 600;
+  color: #374151;
+}
+
+.required {
+  color: #ef4444;
+}
+
+.input,
+.select {
+  border: 1.5px solid #d1d5db;
+  border-radius: 7px;
+  padding: 9px 12px;
+  font-size: 14px;
+  outline: none;
+  transition: border-color 0.15s;
+  background: white;
+  width: 100%;
+}
+
+.input:focus,
+.select:focus {
+  border-color: #1a56db;
+}
+
+.textarea {
+  border: 1.5px solid #d1d5db;
+  border-radius: 7px;
+  padding: 9px 12px;
+  font-size: 14px;
+  outline: none;
+  transition: border-color 0.15s;
+  resize: vertical;
+  width: 100%;
+  font-family: inherit;
+}
+
+.textarea:focus {
+  border-color: #1a56db;
+}
+
+.actions {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-top: 4px;
+}
+
+.rightActions {
+  display: flex;
+  gap: 10px;
+  margin-left: auto;
+}
+
+.btnSave {
+  background: #1a56db;
+  color: white;
+  border: none;
+  padding: 9px 24px;
+  border-radius: 7px;
+  font-size: 14px;
+  font-weight: 600;
+  transition: background 0.15s;
+}
+
+.btnSave:hover:not(:disabled) {
+  background: #1447c0;
+}
+
+.btnSave:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
+}
+
+.btnCancel {
+  background: #f3f4f6;
+  border: 1.5px solid #d1d5db;
+  color: #374151;
+  padding: 9px 20px;
+  border-radius: 7px;
+  font-size: 14px;
+  font-weight: 500;
+  transition: background 0.15s;
+}
+
+.btnCancel:hover:not(:disabled) {
+  background: #e5e7eb;
+}
+
+.btnDelete {
+  background: #fee2e2;
+  border: 1.5px solid #fca5a5;
+  color: #dc2626;
+  padding: 9px 20px;
+  border-radius: 7px;
+  font-size: 14px;
+  font-weight: 500;
+  transition: background 0.15s;
+}
+
+.btnDelete:hover:not(:disabled) {
+  background: #fecaca;
+}
--- a/frontend/src/components/ScheduleView.jsx
+++ b/frontend/src/components/ScheduleView.jsx
@@ -0,0 +1,529 @@
+import { useState, useEffect, useRef, useCallback } from 'react';
+import { format, addDays, startOfWeek, parseISO, differenceInDays, isSameDay } from 'date-fns';
+import { ja } from 'date-fns/locale';
+import { api } from '../api.js';
+import ReservationModal from './ReservationModal.jsx';
+import styles from './ScheduleView.module.css';
+
+const CELL_WIDTH = 52; // px per day column
+const ROW_HEIGHT = 52; // px per car row
+const LABEL_WIDTH = 140; // px for car name column
+const HEADER_HEIGHT = 72; // px for the date header row
+const DAYS_SHOWN = 21; // number of days to show
+
+// Palette for reservation colors (cycle through them by car index)
+const COLORS = [
+  { bg: '#dbeafe', border: '#3b82f6', text: '#1e3a8a' },
+  { bg: '#dcfce7', border: '#22c55e', text: '#14532d' },
+  { bg: '#fef9c3', border: '#eab308', text: '#713f12' },
+  { bg: '#fce7f3', border: '#ec4899', text: '#831843' },
+  { bg: '#ede9fe', border: '#8b5cf6', text: '#3b0764' },
+  { bg: '#ffedd5', border: '#f97316', text: '#7c2d12' },
+  { bg: '#e0f2fe', border: '#0ea5e9', text: '#0c4a6e' },
+  { bg: '#f0fdf4', border: '#16a34a', text: '#14532d' },
+];
+
+function getColor(index) {
+  return COLORS[index % COLORS.length];
+}
+
+function dateToStr(date) {
+  return format(date, 'yyyy-MM-dd');
+}
+
+export default function ScheduleView() {
+  const [cars, setCars] = useState([]);
+  const [reservations, setReservations] = useState([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState(null);
+
+  // The first date shown in the grid
+  const [viewStart, setViewStart] = useState(() =>
+    startOfWeek(new Date(), { weekStartsOn: 1 })
+  );
+
+  // Drag-to-create state
+  const [creating, setCreating] = useState(null);
+  // { carId, startDateStr, endDateStr }
+
+  // Drag-to-move state
+  const [moving, setMoving] = useState(null);
+  // { reservation, grabDayOffset, currentCarId, currentStartDate }
+
+  // Modal state
+  const [modal, setModal] = useState(null);
+  // null | { mode: 'create', prefill: {...} } | { mode: 'edit', reservation: {...} }
+
+  const gridRef = useRef(null);
+  const movingRef = useRef(null); // keeps latest moving state for event handlers
+
+  // Generate the array of dates shown
+  const dates = Array.from({ length: DAYS_SHOWN }, (_, i) => addDays(viewStart, i));
+
+  // --- Data loading ---
+  const loadData = useCallback(async () => {
+    try {
+      setLoading(true);
+      const [carsData, resData] = await Promise.all([api.getCars(), api.getReservations()]);
+      setCars(carsData);
+      setReservations(resData);
+      setError(null);
+    } catch (e) {
+      setError(e.message);
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    loadData();
+  }, [loadData]);
+
+  // --- Navigation ---
+  const prevWeek = () => setViewStart((d) => addDays(d, -7));
+  const nextWeek = () => setViewStart((d) => addDays(d, 7));
+  const goToday = () => setViewStart(startOfWeek(new Date(), { weekStartsOn: 1 }));
+
+  // --- Grid position helpers ---
+  // Given a mouse clientX within the grid scroll area, get the day index (0-based)
+  const getColFromX = useCallback((clientX) => {
+    if (!gridRef.current) return -1;
+    const rect = gridRef.current.getBoundingClientRect();
+    const scrollLeft = gridRef.current.scrollLeft;
+    const x = clientX - rect.left + scrollLeft - LABEL_WIDTH;
+    if (x < 0) return -1;
+    return Math.floor(x / CELL_WIDTH);
+  }, []);
+
+  const getRowFromY = useCallback((clientY) => {
+    if (!gridRef.current) return -1;
+    const rect = gridRef.current.getBoundingClientRect();
+    const scrollTop = gridRef.current.scrollTop;
+    const y = clientY - rect.top + scrollTop - HEADER_HEIGHT;
+    if (y < 0) return -1;
+    return Math.floor(y / ROW_HEIGHT);
+  }, []);
+
+  // --- Cell drag to create ---
+  const handleCellMouseDown = (e, carId, dateStr) => {
+    if (e.button !== 0) return;
+    e.preventDefault();
+    setCreating({ carId, startDateStr: dateStr, endDateStr: dateStr });
+  };
+
+  const handleGridMouseMove = useCallback((e) => {
+    if (creating) {
+      const col = getColFromX(e.clientX);
+      if (col >= 0 && col < DAYS_SHOWN) {
+        const hoveredDate = dateToStr(dates[col]);
+        setCreating((prev) => {
+          if (!prev) return null;
+          // Ensure start <= end
+          const s = prev.startDateStr;
+          const h = hoveredDate;
+          return {
+            ...prev,
+            endDateStr: h >= s ? h : s,
+            startDateStr: h < s ? h : prev.startDateStr,
+          };
+        });
+      }
+    }
+
+    if (moving) {
+      const col = getColFromX(e.clientX);
+      const row = getRowFromY(e.clientY);
+      movingRef.current = { ...movingRef.current };
+
+      if (col >= 0 && col < DAYS_SHOWN) {
+        const newStartCol = Math.max(0, col - moving.grabDayOffset);
+        const duration = differenceInDays(
+          parseISO(moving.reservation.end_date),
+          parseISO(moving.reservation.start_date)
+        );
+        const clampedStartCol = Math.min(newStartCol, DAYS_SHOWN - 1 - duration);
+        const newStartDate = dateToStr(dates[Math.max(0, clampedStartCol)]);
+        const newEndDate = dateToStr(addDays(dates[Math.max(0, clampedStartCol)], duration));
+
+        let newCarId = moving.currentCarId;
+        if (row >= 0 && row < cars.length) {
+          newCarId = cars[row].id;
+        }
+
+        setMoving((prev) => prev ? {
+          ...prev,
+          currentCarId: newCarId,
+          currentStartDate: newStartDate,
+          currentEndDate: newEndDate,
+          col: clampedStartCol,
+          row: row >= 0 && row < cars.length ? row : prev.row,
+        } : null);
+      }
+    }
+  }, [creating, moving, dates, cars, getColFromX, getRowFromY]);
+
+  const handleGridMouseUp = useCallback(async (e) => {
+    if (creating) {
+      const { carId, startDateStr, endDateStr } = creating;
+      setCreating(null);
+      // Open modal to confirm/fill details
+      setModal({
+        mode: 'create',
+        prefill: {
+          car_id: carId,
+          start_date: startDateStr,
+          end_date: endDateStr,
+        },
+      });
+    }
+
+    if (moving) {
+      const { reservation, currentCarId, currentStartDate, currentEndDate } = moving;
+      setMoving(null);
+      movingRef.current = null;
+
+      const duration = differenceInDays(
+        parseISO(reservation.end_date),
+        parseISO(reservation.start_date)
+      );
+      const newEndDate = currentEndDate ||
+        dateToStr(addDays(parseISO(currentStartDate), duration));
+
+      // Only update if something changed
+      if (
+        currentCarId !== reservation.car_id ||
+        currentStartDate !== reservation.start_date
+      ) {
+        try {
+          await api.updateReservation(reservation.id, {
+            car_id: currentCarId,
+            start_date: currentStartDate,
+            end_date: newEndDate,
+            customer_name: reservation.customer_name,
+            notes: reservation.notes,
+          });
+          await loadData();
+        } catch (err) {
+          setError(`予約の移動に失敗しました: ${err.message}`);
+          await loadData();
+        }
+      }
+    }
+  }, [creating, moving, loadData]);
+
+  useEffect(() => {
+    window.addEventListener('mousemove', handleGridMouseMove);
+    window.addEventListener('mouseup', handleGridMouseUp);
+    return () => {
+      window.removeEventListener('mousemove', handleGridMouseMove);
+      window.removeEventListener('mouseup', handleGridMouseUp);
+    };
+  }, [handleGridMouseMove, handleGridMouseUp]);
+
+  // --- Reservation drag to move ---
+  const handleReservationMouseDown = (e, reservation) => {
+    e.stopPropagation();
+    if (e.button !== 0) return;
+    e.preventDefault();
+
+    const col = getColFromX(e.clientX);
+    const startCol = Math.max(0, dates.findIndex((d) => dateToStr(d) === reservation.start_date));
+    const grabOffset = col >= 0 ? col - startCol : 0;
+    const carRow = cars.findIndex((c) => c.id === reservation.car_id);
+
+    setMoving({
+      reservation,
+      grabDayOffset: Math.max(0, grabOffset),
+      currentCarId: reservation.car_id,
+      currentStartDate: reservation.start_date,
+      currentEndDate: reservation.end_date,
+      col: startCol,
+      row: carRow,
+    });
+  };
+
+  // --- Modal save/delete handlers ---
+  const handleModalSave = async (data) => {
+    try {
+      if (modal.mode === 'edit') {
+        await api.updateReservation(modal.reservation.id, data);
+      } else {
+        await api.createReservation(data);
+      }
+      setModal(null);
+      await loadData();
+    } catch (e) {
+      setError(`予約の保存に失敗しました: ${e.message}`);
+    }
+  };
+
+  const handleModalDelete = async (id) => {
+    try {
+      await api.deleteReservation(id);
+      setModal(null);
+      await loadData();
+    } catch (e) {
+      setError(`予約の削除に失敗しました: ${e.message}`);
+    }
+  };
+
+  // --- Rendering ---
+  // Build a map of reservations visible in the date range
+  const viewStartStr = dateToStr(viewStart);
+  const viewEndStr = dateToStr(dates[dates.length - 1]);
+
+  const visibleReservations = reservations.filter(
+    (r) => r.end_date >= viewStartStr && r.start_date <= viewEndStr
+  );
+
+  // For each reservation, calculate its left/width in the grid
+  function getReservationLayout(r) {
+    const rStart = r.start_date < viewStartStr ? viewStartStr : r.start_date;
+    const rEnd = r.end_date > viewEndStr ? viewEndStr : r.end_date;
+    const startCol = differenceInDays(parseISO(rStart), viewStart);
+    const endCol = differenceInDays(parseISO(rEnd), viewStart);
+    const left = startCol * CELL_WIDTH;
+    const width = (endCol - startCol + 1) * CELL_WIDTH;
+    return { left, width, startCol, endCol };
+  }
+
+  // Create ghost for currently moving reservation
+  const movingGhost = moving ? (() => {
+    const duration = differenceInDays(
+      parseISO(moving.reservation.end_date),
+      parseISO(moving.reservation.start_date)
+    );
+    const col = moving.col ?? 0;
+    const left = col * CELL_WIDTH;
+    const width = (duration + 1) * CELL_WIDTH;
+    return { col, left, width, row: moving.row };
+  })() : null;
+
+  // Today column
+  const todayStr = dateToStr(new Date());
+
+  const carColorMap = {};
+  cars.forEach((car, i) => { carColorMap[car.id] = getColor(i); });
+
+  return (
+    <div className={styles.container}>
+      {/* Toolbar */}
+      <div className={styles.toolbar}>
+        <div className={styles.navGroup}>
+          <button className={styles.toolBtn} onClick={prevWeek}>‹ 前週</button>
+          <button className={styles.toolBtn} onClick={goToday}>今日</button>
+          <button className={styles.toolBtn} onClick={nextWeek}>次週 ›</button>
+        </div>
+        <div className={styles.dateRange}>
+          {format(viewStart, 'yyyy年M月d日', { locale: ja })} 〜{' '}
+          {format(dates[dates.length - 1], 'yyyy年M月d日', { locale: ja })}
+        </div>
+        <button
+          className={styles.addBtn}
+          onClick={() =>
+            setModal({
+              mode: 'create',
+              prefill: {
+                car_id: cars[0]?.id,
+                start_date: todayStr,
+                end_date: todayStr,
+              },
+            })
+          }
+        >
+          + 予約を追加
+        </button>
+      </div>
+
+      {error && <div className={styles.error}>エラー: {error}</div>}
+      {loading && <div className={styles.loading}>読み込み中...</div>}
+
+      {/* Grid */}
+      <div
+        className={styles.gridWrapper}
+        ref={gridRef}
+        onMouseLeave={() => {
+          // don't cancel on leave — handled by global events
+        }}
+      >
+        <div
+          className={styles.grid}
+          style={{ width: LABEL_WIDTH + DAYS_SHOWN * CELL_WIDTH }}
+        >
+          {/* Header row */}
+          <div className={styles.headerRow} style={{ height: HEADER_HEIGHT }}>
+            {/* Corner cell */}
+            <div
+              className={styles.cornerCell}
+              style={{ width: LABEL_WIDTH, height: HEADER_HEIGHT }}
+            />
+            {/* Date headers */}
+            {dates.map((date) => {
+              const ds = dateToStr(date);
+              const isToday = ds === todayStr;
+              const dow = format(date, 'E', { locale: ja });
+              const isWeekend = dow === '土' || dow === '日';
+              return (
+                <div
+                  key={ds}
+                  className={`${styles.dateHeader} ${isToday ? styles.todayHeader : ''} ${isWeekend ? styles.weekendHeader : ''}`}
+                  style={{ width: CELL_WIDTH, height: HEADER_HEIGHT }}
+                >
+                  <span className={styles.dateDay}>{format(date, 'd')}</span>
+                  <span className={`${styles.dateDow} ${isWeekend ? styles.weekendDow : ''}`}>{dow}</span>
+                </div>
+              );
+            })}
+          </div>
+
+          {/* Car rows */}
+          {cars.map((car, carIdx) => {
+            const color = carColorMap[car.id];
+            const carReservations = visibleReservations.filter((r) => {
+              if (moving && r.id === moving.reservation.id) return false; // hide while moving
+              return r.car_id === car.id;
+            });
+
+            // Creating highlight for this row
+            const isCreatingRow = creating && creating.carId === car.id;
+            let creatingLeft = 0, creatingWidth = 0;
+            if (isCreatingRow) {
+              const startCol = differenceInDays(parseISO(creating.startDateStr), viewStart);
+              const endCol = differenceInDays(parseISO(creating.endDateStr), viewStart);
+              creatingLeft = Math.max(0, startCol) * CELL_WIDTH;
+              creatingWidth = (Math.min(endCol, DAYS_SHOWN - 1) - Math.max(0, startCol) + 1) * CELL_WIDTH;
+            }
+
+            // Ghost reservation for this row
+            const showGhost = moving && moving.row === carIdx && movingGhost;
+
+            return (
+              <div key={car.id} className={styles.carRow} style={{ height: ROW_HEIGHT }}>
+                {/* Car label */}
+                <div
+                  className={styles.carLabel}
+                  style={{ width: LABEL_WIDTH, height: ROW_HEIGHT }}
+                  title={car.description || car.name}
+                >
+                  <span className={styles.carDot} style={{ background: color.border }} />
+                  <span className={styles.carName}>{car.name}</span>
+                </div>
+
+                {/* Day cells */}
+                <div
+                  className={styles.cellArea}
+                  style={{ width: DAYS_SHOWN * CELL_WIDTH, height: ROW_HEIGHT }}
+                >
+                  {dates.map((date) => {
+                    const ds = dateToStr(date);
+                    const isToday = ds === todayStr;
+                    const dow = format(date, 'E', { locale: ja });
+                    const isWeekend = dow === '土' || dow === '日';
+                    return (
+                      <div
+                        key={ds}
+                        className={`${styles.cell} ${isToday ? styles.todayCell : ''} ${isWeekend ? styles.weekendCell : ''}`}
+                        style={{ width: CELL_WIDTH, height: ROW_HEIGHT }}
+                        onMouseDown={(e) => handleCellMouseDown(e, car.id, ds)}
+                      />
+                    );
+                  })}
+
+                  {/* Creating highlight */}
+                  {isCreatingRow && creatingWidth > 0 && (
+                    <div
+                      className={styles.creatingHighlight}
+                      style={{
+                        left: creatingLeft,
+                        width: creatingWidth,
+                        top: 4,
+                        height: ROW_HEIGHT - 8,
+                      }}
+                    />
+                  )}
+
+                  {/* Ghost while moving */}
+                  {showGhost && (
+                    <div
+                      className={styles.reservationBlock}
+                      style={{
+                        left: movingGhost.left,
+                        width: movingGhost.width,
+                        top: 5,
+                        height: ROW_HEIGHT - 10,
+                        background: color.bg,
+                        borderColor: color.border,
+                        color: color.text,
+                        opacity: 0.6,
+                        cursor: 'grabbing',
+                      }}
+                    >
+                      <span className={styles.blockText}>
+                        {moving.reservation.customer_name || '予約'}
+                      </span>
+                    </div>
+                  )}
+
+                  {/* Reservation blocks */}
+                  {carReservations.map((r) => {
+                    const { left, width } = getReservationLayout(r);
+                    return (
+                      <div
+                        key={r.id}
+                        className={styles.reservationBlock}
+                        style={{
+                          left,
+                          width: width - 4,
+                          top: 5,
+                          height: ROW_HEIGHT - 10,
+                          background: color.bg,
+                          borderColor: color.border,
+                          color: color.text,
+                          cursor: 'grab',
+                        }}
+                        onMouseDown={(e) => handleReservationMouseDown(e, r)}
+                        onClick={(e) => {
+                          if (!moving) {
+                            e.stopPropagation();
+                            setModal({ mode: 'edit', reservation: r });
+                          }
+                        }}
+                        title={`${r.customer_name || '予約'}\n${r.start_date} 〜 ${r.end_date}${r.notes ? '\n' + r.notes : ''}`}
+                      >
+                        <span className={styles.blockText}>
+                          {r.customer_name || '予約'}
+                        </span>
+                        {width > 80 && (
+                          <span className={styles.blockDates}>
+                            {r.start_date.slice(5)} 〜 {r.end_date.slice(5)}
+                          </span>
+                        )}
+                      </div>
+                    );
+                  })}
+                </div>
+              </div>
+            );
+          })}
+
+          {cars.length === 0 && !loading && (
+            <div className={styles.noCars}>
+              代車が登録されていません。「代車管理」から追加してください。
+            </div>
+          )}
+        </div>
+      </div>
+
+      {/* Reservation Modal */}
+      {modal && (
+        <ReservationModal
+          cars={cars}
+          reservation={modal.mode === 'edit' ? modal.reservation : modal.prefill}
+          onSave={handleModalSave}
+          onDelete={handleModalDelete}
+          onClose={() => setModal(null)}
+        />
+      )}
+    </div>
+  );
+}
--- a/frontend/src/components/ScheduleView.module.css
+++ b/frontend/src/components/ScheduleView.module.css
@@ -0,0 +1,266 @@
+.container {
+  display: flex;
+  flex-direction: column;
+  height: calc(100vh - 56px);
+  overflow: hidden;
+}
+
+.toolbar {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 10px 20px;
+  background: white;
+  border-bottom: 1px solid #e5e7eb;
+  flex-shrink: 0;
+  flex-wrap: wrap;
+}
+
+.navGroup {
+  display: flex;
+  gap: 4px;
+}
+
+.toolBtn {
+  background: #f3f4f6;
+  border: 1.5px solid #d1d5db;
+  color: #374151;
+  padding: 6px 14px;
+  border-radius: 6px;
+  font-size: 13px;
+  font-weight: 500;
+  transition: background 0.15s;
+}
+
+.toolBtn:hover {
+  background: #e5e7eb;
+}
+
+.dateRange {
+  font-size: 14px;
+  font-weight: 600;
+  color: #374151;
+  flex: 1;
+  text-align: center;
+}
+
+.addBtn {
+  background: #1a56db;
+  color: white;
+  border: none;
+  padding: 7px 18px;
+  border-radius: 6px;
+  font-size: 13px;
+  font-weight: 600;
+  transition: background 0.15s;
+  white-space: nowrap;
+}
+
+.addBtn:hover {
+  background: #1447c0;
+}
+
+.error {
+  background: #fee2e2;
+  color: #dc2626;
+  padding: 10px 20px;
+  font-size: 14px;
+}
+
+.loading {
+  padding: 20px;
+  text-align: center;
+  color: #6b7280;
+  font-size: 14px;
+}
+
+/* Grid wrapper - scrollable */
+.gridWrapper {
+  flex: 1;
+  overflow: auto;
+  position: relative;
+  user-select: none;
+}
+
+.grid {
+  position: relative;
+  min-height: 100%;
+}
+
+/* Sticky header row */
+.headerRow {
+  display: flex;
+  position: sticky;
+  top: 0;
+  z-index: 20;
+  background: white;
+  border-bottom: 2px solid #d1d5db;
+}
+
+.cornerCell {
+  flex-shrink: 0;
+  background: #f9fafb;
+  border-right: 2px solid #d1d5db;
+  border-bottom: 2px solid #d1d5db;
+  position: sticky;
+  left: 0;
+  z-index: 30;
+}
+
+.dateHeader {
+  flex-shrink: 0;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  border-right: 1px solid #e5e7eb;
+  gap: 2px;
+  background: white;
+}
+
+.todayHeader {
+  background: #eff6ff;
+}
+
+.weekendHeader {
+  background: #fafafa;
+}
+
+.dateDay {
+  font-size: 16px;
+  font-weight: 700;
+  color: #111827;
+  line-height: 1;
+}
+
+.dateDow {
+  font-size: 11px;
+  color: #6b7280;
+  line-height: 1;
+}
+
+.weekendDow {
+  color: #ef4444;
+}
+
+/* Car rows */
+.carRow {
+  display: flex;
+  border-bottom: 1px solid #e5e7eb;
+  position: relative;
+}
+
+.carRow:hover .cellArea {
+  background: #fafafa;
+}
+
+.carLabel {
+  flex-shrink: 0;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 0 12px;
+  border-right: 2px solid #d1d5db;
+  background: white;
+  position: sticky;
+  left: 0;
+  z-index: 10;
+  box-shadow: 2px 0 4px rgba(0,0,0,0.04);
+}
+
+.carDot {
+  width: 10px;
+  height: 10px;
+  border-radius: 50%;
+  flex-shrink: 0;
+}
+
+.carName {
+  font-size: 13px;
+  font-weight: 600;
+  color: #374151;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+/* Cell area */
+.cellArea {
+  display: flex;
+  position: relative;
+  flex-shrink: 0;
+}
+
+.cell {
+  flex-shrink: 0;
+  border-right: 1px solid #f0f0f0;
+  cursor: crosshair;
+  transition: background 0.1s;
+}
+
+.cell:hover {
+  background: rgba(26, 86, 219, 0.04);
+}
+
+.todayCell {
+  background: rgba(59, 130, 246, 0.06);
+}
+
+.weekendCell {
+  background: rgba(0,0,0,0.015);
+}
+
+/* Highlight while dragging to create */
+.creatingHighlight {
+  position: absolute;
+  border-radius: 6px;
+  background: rgba(26, 86, 219, 0.2);
+  border: 2px dashed #1a56db;
+  pointer-events: none;
+  z-index: 5;
+}
+
+/* Reservation block */
+.reservationBlock {
+  position: absolute;
+  border-radius: 6px;
+  border: 1.5px solid;
+  overflow: hidden;
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  padding: 2px 8px;
+  z-index: 6;
+  transition: box-shadow 0.1s;
+  min-width: 0;
+}
+
+.reservationBlock:hover {
+  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
+  z-index: 7;
+}
+
+.blockText {
+  font-size: 12px;
+  font-weight: 600;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  line-height: 1.3;
+}
+
+.blockDates {
+  font-size: 10px;
+  opacity: 0.75;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  line-height: 1.2;
+}
+
+.noCars {
+  padding: 40px 20px;
+  text-align: center;
+  color: #6b7280;
+  font-size: 14px;
+}
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -0,0 +1,27 @@
+/* Global styles */
+* {
+  box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+}
+
+body {
+  font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
+  background: #f5f7fa;
+  color: #333;
+  min-height: 100vh;
+}
+
+#root {
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+}
+
+button {
+  cursor: pointer;
+}
+
+input, textarea, select {
+  font-family: inherit;
+}
--- a/frontend/src/main.jsx
+++ b/frontend/src/main.jsx
@@ -0,0 +1,10 @@
+import React from 'react';
+import ReactDOM from 'react-dom/client';
+import App from './App.jsx';
+import './index.css';
+
+ReactDOM.createRoot(document.getElementById('root')).render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>
+);
--- a/frontend/vite.config.js
+++ b/frontend/vite.config.js
@@ -0,0 +1,15 @@
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+
+export default defineConfig({
+  plugins: [react()],
+  server: {
+    port: 5173,
+    proxy: {
+      '/api': {
+        target: 'http://localhost:3001',
+        changeOrigin: true,
+      },
+    },
+  },
+});
--- a/package-lock.json
+++ b/package-lock.json
@@ -0,0 +1,329 @@
+{
+  "name": "car-reservation",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "car-reservation",
+      "version": "1.0.0",
+      "devDependencies": {
+        "concurrently": "^9.2.1"
+      }
+    },
+    "node_modules/ansi-regex": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/ansi-styles": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+      "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "color-convert": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
+      }
+    },
+    "node_modules/chalk": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^4.1.0",
+        "supports-color": "^7.1.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/chalk?sponsor=1"
+      }
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+        "has-flag": "^4.0.0"
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+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
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+        "strip-ansi": "^6.0.1",
+        "wrap-ansi": "^7.0.0"
+      },
+      "engines": {
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "chalk": "4.1.2",
+        "rxjs": "7.8.2",
+        "shell-quote": "1.8.3",
+        "supports-color": "8.1.1",
+        "tree-kill": "1.2.2",
+        "yargs": "17.7.2"
+      },
+      "bin": {
+        "conc": "dist/bin/concurrently.js",
+        "concurrently": "dist/bin/concurrently.js"
+      },
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+      "license": "MIT",
+      "dependencies": {
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+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
+      },
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+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
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+    "node_modules/y18n": {
+      "version": "5.0.8",
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+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/yargs": {
+      "version": "17.7.2",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.7.2.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "cliui": "^8.0.1",
+        "escalade": "^3.1.1",
+        "get-caller-file": "^2.0.5",
+        "require-directory": "^2.1.1",
+        "string-width": "^4.2.3",
+        "y18n": "^5.0.5",
+        "yargs-parser": "^21.1.1"
+      },
+      "engines": {
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+      }
+    },
+    "node_modules/yargs-parser": {
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+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-21.1.1.tgz",
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+      }
+    }
+  }
+}
--- a/package.json
+++ b/package.json
@@ -0,0 +1,17 @@
+{
+  "name": "car-reservation",
+  "version": "1.0.0",
+  "description": "代車スケジュール管理システム",
+  "private": true,
+  "scripts": {
+    "dev:backend": "cd backend && node server.js",
+    "dev:frontend": "cd frontend && npx vite",
+    "dev": "concurrently \"npm run dev:backend\" \"npm run dev:frontend\"",
+    "build": "cd frontend && npx vite build"
+  },
+  "keywords": [],
+  "author": "",
+  "devDependencies": {
+    "concurrently": "^9.2.1"
+  }
+}