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/**
* zen-nav.js — Zen dashboard navigation bar Web Component
*
* Usage:
* <script src="nav.js" defer></script>
*
* <zen-nav>
* <a href="compute.html">Node</a>
* <a href="orchestrator.html">Orchestrator</a>
* </zen-nav>
*
* Each child <a> becomes a nav link. The current page is
* highlighted automatically based on the href.
*/
class ZenNav extends HTMLElement {
connectedCallback() {
if (!this.shadowRoot) this.attachShadow({ mode: 'open' });
this._render();
}
_render() {
const currentPath = window.location.pathname;
const items = Array.from(this.querySelectorAll(':scope > a'));
const links = items.map(a => {
const href = a.getAttribute('href') || '';
const label = a.textContent.trim();
const active = currentPath.endsWith(href);
return `<a class="nav-link${active ? ' active' : ''}" href="${href}">${label}</a>`;
}).join('');
this.shadowRoot.innerHTML = `
<style>
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:host {
display: block;
margin-bottom: 16px;
}
.nav-bar {
display: flex;
align-items: center;
gap: 4px;
padding: 4px;
background: var(--theme_g3);
border: 1px solid var(--theme_g2);
border-radius: 6px;
}
.nav-link {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
font-size: 13px;
font-weight: 500;
color: var(--theme_g1);
text-decoration: none;
padding: 6px 14px;
border-radius: 4px;
transition: color 0.15s, background 0.15s;
}
.nav-link:hover {
color: var(--theme_g0);
background: var(--theme_p4);
}
.nav-link.active {
color: var(--theme_bright);
background: var(--theme_g2);
}
</style>
<nav class="nav-bar">${links}</nav>
`;
}
}
customElements.define('zen-nav', ZenNav);
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