# SENTRA Studio

> SENTRA Studio is a luxury brutalist web design atelier and high-conversion web application development agency based in Medan, Indonesia. The studio specializes in high-converting landing pages, corporate websites, e-commerce stores, custom SaaS MVPs, and instant AI web audits.

SENTRA Studio builds performant web applications using React 19, TypeScript, Tailwind CSS, and Vite. The platform incorporates a pure Web Audio API haptic feedback engine, real-time ROI & cost calculators, and streamlined 1-click WhatsApp project briefing funnels.

Core business guarantees:
- 100% full source code and asset ownership transferred upon project completion
- 30 to 60 days bug-free warranty and technical maintenance included
- Sub-0.4s load speed optimization (Google Lighthouse 95-100/100 score target)
- Direct WhatsApp support (+62 822-7336-2275) and official email contact (contact@sentrastudio.com)

## Services

- [Layanan Pembuatan Website](https://sentrastudio.com/#layanan): Overview of web development services including high-conversion landing pages, corporate profiles, e-commerce stores, and custom SaaS web applications.
- [Kalkulator Biaya Live](https://sentrastudio.com/#estimator): Interactive real-time cost and ROI estimator supporting instant project scoping, feature add-ons, and downloadable proposal summaries.
- [Paket Harga & Investasi](https://sentrastudio.com/#paket): Transparent pricing packages (Silver, Gold Signature, Enterprise Platinum) with upfront scope details and zero hidden recurring fees.

## Case Studies & Tools

- [Portofolio & Case Studies](https://sentrastudio.com/#portofolio): Interactive portfolio showcase with before/after case studies, conversion metrics, and wireframe interaction concepts.
- [AI Website Diagnostic Audit](https://sentrastudio.com/#audit): Instant diagnostic tool analyzing target website loading speeds (LCP), mobile responsiveness, SEO architecture, and conversion bottlenecks.
- [Alur Kerja Transparan](https://sentrastudio.com/#alur-kerja): 5-step development process covering brief discussion, UI/UX concept design, high-performance coding, SEO/speed testing, and final launch.

## Knowledge & Support

- [FAQ & Tanya Jawab](https://sentrastudio.com/#faq): Frequently asked questions regarding domains, hosting, payment schedules (50:50 DP), revisions, and post-launch maintenance.
- [Pusat Legalitas & Kebijakan Privasi](https://sentrastudio.com/): Comprehensive compliance documentation adhering to Indonesian Data Protection Law (UU PDP No. 27 Tahun 2022) and terms of service.

## Optional

- [Project Brief Builder Modal](https://sentrastudio.com/#brief): Guided interactive modal to submit project requirements directly to WhatsApp and generate printable PDF proposals.
- [Technical Stack & Architecture](https://github.com/itsmeabde/sentrastudio): Repository source architecture detailing React 19, Vite, Tailwind CSS, and Web Audio synthesis implementations.