feat: rebuild portfolio with React + TanStack Start

src/components/Header.tsx

@@ -0,0 +1,55 @@
+import { Link } from '@tanstack/react-router'
+import { GitHubIcon } from '#/components/icons'
+import { CONTACT_EMAIL } from '#/data/portfolio'
+import ThemeToggle from './ThemeToggle'
+
+export default function Header() {
+  return (
+    <header className="sticky top-0 z-50 border-b border-[var(--line)] bg-[var(--header-bg)] px-4 backdrop-blur-lg">
+      <nav className="page-wrap flex flex-wrap items-center gap-x-3 gap-y-2 py-3 sm:py-4">
+        <h2 className="m-0 flex-shrink-0 text-base font-semibold tracking-tight">
+          <Link
+            to="/"
+            className="inline-flex items-center gap-2 rounded-full border border-[var(--chip-line)] bg-[var(--chip-bg)] px-3 py-1.5 text-sm text-[var(--sea-ink)] no-underline shadow-[0_8px_24px_rgba(30,90,72,0.08)] sm:px-4 sm:py-2"
+          >
+            <span className="h-2 w-2 rounded-full bg-[linear-gradient(90deg,#56c6be,#7ed3bf)]" />
+            Mohammad
+          </Link>
+        </h2>
+
+        <div className="ml-auto flex items-center gap-1.5 sm:ml-0 sm:gap-2">
+          <a
+            href="https://github.com/moh682"
+            target="_blank"
+            rel="noreferrer"
+            className="hidden rounded-xl p-2 text-[var(--sea-ink-soft)] transition hover:bg-[var(--link-bg-hover)] hover:text-[var(--sea-ink)] sm:block"
+          >
+            <span className="sr-only">GitHub profile</span>
+            <GitHubIcon width={24} height={24} />
+          </a>
+
+          <ThemeToggle />
+        </div>
+
+        <div className="order-3 flex w-full flex-wrap items-center gap-x-4 gap-y-1 pb-1 text-sm font-semibold sm:order-2 sm:w-auto sm:flex-nowrap sm:pb-0">
+          <Link
+            to="/"
+            className="nav-link"
+            activeProps={{ className: 'nav-link is-active' }}
+          >
+            Home
+          </Link>
+          <a href="/#experience" className="nav-link">
+            Experience
+          </a>
+          <a href="/#skills" className="nav-link">
+            Skills
+          </a>
+          <a href={`mailto:${CONTACT_EMAIL}`} className="nav-link">
+            Contact
+          </a>
+        </div>
+      </nav>
+    </header>
+  )
+}