1915|        });
  1916|
  1917|        // ── Detect Environment ──
  1918|        const IS_GITHUB_PAGES = window.location.hostname.includes('github.io');
  1919|        const BACKEND_HOST = '116.203.180.240';
  1920|        const BACKEND_PORT = '8000';
  1921|        // When served from HTTPS (GitHub Pages), the browser blocks mixed-content HTTP requests.
  1922|        // For full production use, set up a proper domain with SSL cert on the backend.
  1923|        // For now: GitHub Pages redirects to the live backend directly.
  1924|        const API_BASE = IS_GITHUB_PAGES
  1925|            ? 'http://' + BACKEND_HOST + ':' + BACKEND_PORT + '/api'
  1926|            : '/api';
  1927|        const APP_URL = '//' + BACKEND_HOST + ':' + BACKEND_PORT;
  1928|
  1929|        // ── Analysis handler ──
  1930|        const form = document.getElementById('analyze-form');
  1931|        const urlInput = document.getElementById('url-input');
  1932|        const resultsSection = document.getElementById('results');
  1933|        const loadingSection = document.getElementById('loading');
  1934|        const resultsContent = document.getElementById('results-content');
  1935|        const errorSection = document.getElementById('error');
  1936|        const errorMessage = document.getElementById('error-message');
  1937|
  1938|        form.addEventListener('submit', function(e) {
  1939|            e.preventDefault();
  1940|            // On GitHub Pages, redirect to the live backend directly
  1941|            if (IS_GITHUB_PAGES) {
  1942|                window.location.href = 'http://' + BACKEND_HOST + ':' + BACKEND_PORT + '/?url=' + encodeURIComponent(urlInput.value);
  1943|                return;
  1944|            }
  1945|