docs(overview): add new 'At a Glance' documentation section for GpgFrontend

2 files changed, 142 insertions, 89 deletions

diff --git a/src/content/docs/overview/glance.md b/src/content/docs/overview/glance.md
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----
-title: "GpgFrontend: Your OpenPGP Companion"
-sidebar:
-  label: At a Glance
-  order: 1
----
-
-**GpgFrontend** is a modern, cross-platform, open-source GUI for
-[OpenPGP](https://www.openpgp.org/) encryption—easy for beginners, powerful for
-experts, and truly portable for everyone who values security and flexibility.
-
-**Key Features:**
-
-- **One-click Encryption & Signing** — Quickly encrypt, decrypt, and digitally
-  sign texts, files, and emails effortlessly.
-- **Multiple Independent Key Databases** — Seamlessly manage different keys and
-  identities for various roles, projects, or teams.
-- **Fully Portable Across OS** — Run from a USB drive and move keys and settings
-  easily between Windows and Linux.
-- **Comprehensive Algorithm Support** — Supports RSA, DSA, EdDSA, ECDSA (NIST,
-  Brainpool), ECDH, and many more via modern GnuPG.
-- **Easy Installation** — Available via Homebrew, Flatpak, GitHub Releases,
-  winget, AUR, Microsoft Store, and more.
-- **True Cross-platform Experience** — Native support for Windows, macOS, Linux,
-  and buildable on FreeBSD.
-
-Give GpgFrontend a ⭐ on [GitHub](https://github.com/saturneric/GpgFrontend).
-Your support helps our community grow, allowing more people to secure their
-privacy easily and effectively.
-
-**Current Documentation Version:**
-[v2.1.9](https://github.com/saturneric/GpgFrontend/releases/tag/v2.1.9)
-
-## User Interface Glimpse
-
-Most of the screenshots in this manual are from the macOS version of
-GpgFrontend, as primary development and testing are conducted on macOS. This
-approach ensures consistent screenshot quality and a unified visual style
-throughout the manual.
-
-![](https://image.cdn.bktus.com/i/2025/06/24/8725f93f511017055e6df799dac5262a5e9c3254.webp)
-
-![](https://image.cdn.bktus.com/i/2025/06/25/82aae58a6e35a26aec366cea65178057a8817f12.webp)
-
-![](https://image.cdn.bktus.com/i/2025/06/25/126a292375472a3c559a0a0de775283e4ea05875.webp)
-
-:::tip[Note]
-
-The core features and workflow of GpgFrontend are consistent across all
-supported platforms (Windows, Linux, etc.). While visual details such as fonts
-and window styles may differ slightly depending on your operating system, the
-documentation remains applicable and relevant for all users.
-
-:::
-
-## Mission and Origins
-
-GpgFrontend draws its inspiration and core philosophy from the stable, portable,
-and cross-platform [gpg4usb](https://www.gpg4usb.org/) project. Inheriting the
-spirit of true portability and platform independence, GpgFrontend builds on this
-foundation to deliver even more advanced features, modern algorithm support, and
-an intuitive user experience. Our mission is to make powerful OpenPGP encryption
-truly accessible—simple, robust, and convenient for everyone, on any major
-operating system.
-
-### Open Source, Always
-
-As a community-driven, open-source project, GpgFrontend is entirely free and
-transparent, welcoming contributions, feedback, and ideas from users worldwide.
-
-## Explore the Source
-
-Dive into the development journey on GitHub, where every line of code, each
-update, and user feedback converge to refine and enhance GpgFrontend.
-
-- [Source Code of Application](https://github.com/saturneric/GpgFrontend)
-- [Source Code of THIS Website](https://github.com/saturneric/GpgFrontend-Manual)
-
-### License and Contributions
-
-GpgFrontend is licensed under GPL-3.0. Contributions—from issue reports to code
-patches—are warmly welcomed.
-
-## Your Privacy First
-
-Designed with privacy at its core, GpgFrontend guarantees that your data remains
-yours alone, free from telemetry and external dependencies. Join us on our
-mission to make encryption secure, simple, and available to everyone—because
-your privacy matters.
diff --git a/src/content/docs/overview/glance.mdx b/src/content/docs/overview/glance.mdx
new file mode 100644
index 0000000..99bfc0e
--- /dev/null
+++ b/src/content/docs/overview/glance.mdx
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+---
+title: "GpgFrontend: Your OpenPGP Companion"
+sidebar:
+  label: At a Glance
+  order: 1
+---
+
+import { Tabs, TabItem } from "@astrojs/starlight/components";
+
+**GpgFrontend** is not just another [OpenPGP](https://www.openpgp.org/)
+tool—it’s your fast, portable, and truly independent encryption companion.
+Whether you’re just starting out or already a privacy expert, GpgFrontend
+empowers you with secure communication—no clutter, no bloat, total control.
+
+## Why GpgFrontend?
+
+GpgFrontend is more than a simple “button-and-command” wrapper around GnuPG.
+Every detail is designed for real-world usability, security, and portability:
+
+- **Effortless Encryption & Signing:** Quickly encrypt, decrypt, and sign texts,
+  files, and emails in one click.
+- **Multiple Independent Key Databases:** Manage different keys and identities
+  for various projects or teams—keep everything organized and secure.
+- **Truly Portable:** Run GpgFrontend from a USB drive and carry your keys and
+  settings easily between devices.
+- **Advanced Yet Accessible:** Supports modern algorithms (RSA, EdDSA, ECDSA,
+  ECDH, etc.), advanced features like KeyPackage, public key sync,
+  backup/restore, and powerful security options—all while remaining easy for
+  beginners.
+- **Error Prevention:** Built-in checks, clear workflows, and guidance help you
+  avoid accidental mistakes.
+- **Lightweight & Efficient:** No browser engines, no heavy frameworks. Minimal
+  memory usage, instant startup, and zero background bloat.
+- **Consistent Experience Everywhere:** Native support for Windows, macOS,
+  Linux, and buildable on FreeBSD—always the same look and feel.
+
+> Give GpgFrontend a ⭐ on [GitHub](https://github.com/saturneric/GpgFrontend).
+> Your support helps our community grow and brings strong privacy to everyone.
+
+## Who Is GpgFrontend For?
+
+- Anyone seeking strong encryption without a steep learning curve.
+- Users who value true cross-platform portability—run anywhere, even from a USB
+  stick.
+- Professionals who need advanced key management and modern cryptography.
+- Privacy advocates who demand open-source, no vendor lock-in, and no hidden
+  data collection.
+- Users who want to stay up-to-date—GpgFrontend quickly adopts the latest stable
+  GnuPG releases and cryptographic innovations.
+- Those who value a minimal attack surface—no web engines, telemetry, or
+  unnecessary dependencies.
+
+## What Problems Does GpgFrontend Solve?
+
+- Makes OpenPGP encryption accessible, even for non-technical users.
+- Avoids the “feature bloat” and confusion of other frontends—no X.509, no
+  unrelated complexity.
+- Enables advanced security options and portable key management out of the box.
+- Ensures your encryption is always under your control—never tied to cloud
+  services or proprietary platforms.
+
+## User Interface Glimpse
+
+GpgFrontend’s interface is designed for clarity and efficiency, not for show. No
+flashy graphics, no trendy animations—just the simplest layouts and most direct
+logic to help you get professional results.
+
+- **Lightweight:** Minimal memory usage and instant startup.
+- **Practical:** Every function is easy to find, every action is straightforward.
+- **Uncluttered:** Advanced features are organized and hidden until needed;
+  beginners see only what matters.
+- **Consistent:** The app works the same across Windows, macOS, and Linux.
+
+<Tabs>
+  <TabItem label="macOS">
+    ![](https://image.cdn.bktus.com/i/2025/06/24/8725f93f511017055e6df799dac5262a5e9c3254.webp)
+  </TabItem>
+  <TabItem label="Windows">
+    ![](https://image.cdn.bktus.com/i/2025/06/25/82aae58a6e35a26aec366cea65178057a8817f12.webp)
+  </TabItem>
+  <TabItem label="Linux">
+    ![](https://image.cdn.bktus.com/i/2025/06/25/126a292375472a3c559a0a0de775283e4ea05875.webp)
+  </TabItem>
+</Tabs>
+
+:::tip[Note]
+
+Most screenshots in this manual are from the macOS version to ensure consistent
+quality and style. The core features and workflows are the same across all
+platforms, even if fonts or window borders look slightly different.
+
+:::
+
+## Mission and Origins
+
+GpgFrontend draws its inspiration and core philosophy from the stable, portable,
+and cross-platform [gpg4usb](https://www.gpg4usb.org/) project. Inheriting the
+spirit of true portability and platform independence, GpgFrontend builds on this
+foundation to deliver even more advanced features, modern algorithm support, and
+an intuitive user experience. Our mission is to make powerful OpenPGP encryption
+truly accessible—simple, robust, and convenient for everyone, on any major
+operating system.
+
+## Open Source, Always
+
+As a community-driven, open-source project, GpgFrontend is entirely free and
+transparent, welcoming contributions, feedback, and ideas from users worldwide.
+
+## User-Driven Development
+
+What truly sets GpgFrontend apart is its commitment to users. From day one,
+nearly every piece of user feedback—whether about interface design, new
+features, or compatibility—has been addressed in the very next release. Your
+ideas and needs directly shape the roadmap. GpgFrontend evolves with you, not
+just for you.
+
+## Your Privacy First
+
+GpgFrontend is built with privacy as its top priority—designed for true offline
+security. No telemetry, no cloud syncing, and no outside dependencies. All
+encryption, decryption, and signing are performed **locally** on your device, so
+your secrets never leave your machine.
+
+Whether you’re online or offline, your data remains 100% under your control.  
+Join us in making encryption simple, robust, and truly private—because your
+privacy is non-negotiable.
+
+## Explore the Source
+
+Dive into the development journey on GitHub, where every line of code, each
+update, and user feedback converge to refine and enhance GpgFrontend.
+
+- [Source Code of Application](https://github.com/saturneric/GpgFrontend)
+- [Source Code of User Manual](https://github.com/saturneric/GpgFrontend-Manual)
+
+**Current Manual Version:**
+[v2.1.9](https://github.com/saturneric/GpgFrontend/releases/tag/v2.1.9)
+
+## License and Contributions
+
+GpgFrontend is licensed under GPL-3.0. Contributions—from issue reports to code
+patches—are warmly welcomed.