🌸 Sakura Dreams — Japanese 3D Authentication

🎌 Tranquil Japanese cherry blossom authentication with falling petals, moonlit night, floating lanterns, and zen garden aesthetics. Fully responsive design!

✨ Features

• 🌙 Moonlit Night Sky — Glowing moon with crater details
• 🌸 Falling Sakura Petals — Dynamic CSS-animated cherry blossoms
• 🏮 Floating Lanterns — Traditional Japanese paper lanterns
• 🎏 Koi Pond — Water ripples with swimming koi fish
• 🎋 Cherry Blossom Branches — Decorative sakura tree elements
• ✨ 3D Glassmorphism Cards — Subtle breathing animations
• ⚡ Real-time Validation — Async field validation via API
• 🔐 Secure Auth — bcrypt password hashing
• 📧 Email Auth — Login and register with email
• 💪 Password Strength Meter — Visual strength indicator
• 📱 Fully Responsive — Mobile-first design
• 🚀 Zero Page Reloads — All errors handled via AJAX

🛠 Tech Stack

Layer	Technology
Backend	Go 1.21+ with Fiber v2
Database	SQLite (Pure Go, no CGO)
ORM	GORM
Frontend	Alpine.js 3.x
Styling	Tailwind CSS 3.x
Auth	bcrypt + Sessions

🚀 Quick Start

Clone and run:

git clone https://github.com/smart-developer1791/go-fiber-auth-sakura
cd go-fiber-auth-sakura

Initialize and start:

go mod tidy
go run .

Open http://localhost:3000

🔑 Demo Account

Field	Value
Email	demo@sakura.app
Password	demo1234

📁 Project Structure

go-fiber-auth-sakura/
├── main.go              # Fiber server, routes, handlers
├── templates/
│   ├── login.html       # Email login with sakura theme
│   ├── register.html    # Email registration
│   └── dashboard.html   # Responsive zen dashboard
├── sakura_auth.db       # SQLite database (auto-created)
├── render.yaml          # Render deployment config
└── README.md

🎨 Visual Elements

Sakura Petals

• 35 petals on desktop, 20 on mobile
• Unique fall trajectories with sway
• Random sizes and animation delays
• Soft pink gradient colors with glow

Moon

• Radial gradient for 3D effect
• Crater details via pseudo-elements
• Pulsing glow animation
• Responsive sizing

Koi Fish

• Swimming animation across pond
• Orange-gold gradient
• Hidden on mobile for performance

Lanterns

• Floating animation
• Warm glow effect
• Responsive visibility

🔒 Security Features

• bcrypt password hashing (cost 10)
• HTTP-only session cookies
• Server-side validation
• SQL injection protected via GORM
• XSS protected via template escaping

📱 Responsive Design

• Mobile-first approach
• Adaptive petal count (20 mobile / 35 desktop)
• Collapsible header elements
• Touch-friendly inputs
• Optimized animations for mobile

🌐 API Endpoints

Method	Endpoint	Description
GET	/	Redirect to /login
GET	/login	Login page
POST	/api/login	Authenticate user
GET	/register	Registration page
POST	/api/register	Create account
POST	/api/validate/email	Check email available (register)
POST	/api/validate/email-exists	Check email exists (login)
GET	/dashboard	Protected dashboard
POST	/logout	End session

🎯 Dependencies

github.com/glebarez/sqlite
github.com/gofiber/fiber/v2
github.com/gofiber/fiber/v2/middleware/logger
github.com/gofiber/fiber/v2/middleware/session
github.com/gofiber/template/html/v2
golang.org/x/crypto
gorm.io/gorm

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