feat: Add initial HTML, CSS, and JavaScript for ZDTT Terminal interface

script.js

@@ -0,0 +1,35 @@
+document.addEventListener('DOMContentLoaded', () => {
+  const navToggle = document.querySelector('.nav__toggle');
+  const navLinks = document.querySelector('.nav__links');
+  const yearEl = document.getElementById('year');
+
+  if (yearEl) {
+    yearEl.textContent = new Date().getFullYear();
+  }
+
+  if (navToggle && navLinks) {
+    navToggle.addEventListener('click', () => {
+      navLinks.classList.toggle('is-open');
+    });
+  }
+
+  document.querySelectorAll('[data-copy]').forEach((button) => {
+    button.addEventListener('click', () => {
+      const target = document.querySelector(button.dataset.copy);
+      if (!target) {
+        return;
+      }
+      navigator.clipboard?.writeText(target.textContent.trim()).then(() => {
+        button.textContent = 'Copied!';
+        setTimeout(() => {
+          button.textContent = 'Copy Install Command';
+        }, 1800);
+      }).catch(() => {
+        button.textContent = 'Unable to copy';
+        setTimeout(() => {
+          button.textContent = 'Copy Install Command';
+        }, 1800);
+      });
+    });
+  });
+});