feat: new site (#1)

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### Issue

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### Attestations

- [ ] I have read and agree to the [Code of Conduct](https://docs.nhcarrigan.com/community/coc/)
- [ ] I have read and agree to the [Community Guidelines](https://docs.nhcarrigan.com/community/guide/).
- [ ] My contribution complies with the [Contributor Covenant](https://docs.nhcarrigan.com/dev/covenant/).

### Dependencies

- [ ] I have pinned the dependencies to a specific patch version.

### Style

- [ ] I have run the linter and resolved any errors.
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### Tests

- [ ] My contribution adds new code, and I have added tests to cover it.
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- [ ] All new and existing tests pass locally with my changes.
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Reviewed-on: #1
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

src/app/nav/nav.css

@@ -0,0 +1,87 @@
+nav {
+    background-color: var(--color-secondary);
+    color: var(--color-primary);
+    position: relative;
+}
+
+.nav-menu {
+    display: flex;
+    gap: 1rem;
+    list-style: none;
+}
+
+.hamburger-btn {
+    display: none;
+    flex-direction: column;
+    gap: 5px;
+    background: none;
+    border: none;
+    cursor: pointer;
+    padding: 5px;
+    z-index: 31;
+}
+
+.hamburger-btn span {
+    width: 25px;
+    height: 3px;
+    background-color: var(--color-accent);
+    transition: all 0.3s ease;
+}
+
+.hamburger-btn:hover span {
+    background-color: var(--color-primary);
+}
+
+/* Mobile styles */
+@media (max-width: 500px) {
+    .hamburger-btn {
+        display: flex;
+    }
+
+    .nav-menu {
+        position: absolute;
+        top: 100%;
+        left: 0;
+        right: 0;
+        flex-direction: column;
+        background-color: var(--color-secondary);
+        padding: 1rem;
+        gap: 0;
+        max-height: 0;
+        overflow: hidden;
+        transition: max-height 0.3s ease;
+        opacity: 0;
+    }
+
+    .nav-menu.menu-open {
+        max-height: 500px;
+        opacity: 1;
+    }
+
+    .nav-menu a {
+        display: block;
+        padding: 0.75rem 0;
+        border-bottom: 1px solid rgba(224, 224, 224, 0.1);
+    }
+
+    .nav-menu a:last-child {
+        border-bottom: none;
+    }
+
+    /* Hamburger animation */
+    nav.menu-open .hamburger-btn {
+        gap: 0;
+    }
+
+    nav.menu-open .hamburger-btn span:nth-child(1) {
+        transform: rotate(45deg) translateY(4px);
+    }
+
+    nav.menu-open .hamburger-btn span:nth-child(2) {
+        opacity: 0;
+    }
+
+    nav.menu-open .hamburger-btn span:nth-child(3) {
+        transform: rotate(-45deg) translateY(-4px);
+    }
+}