/* Custom styles for a cleaner, professional look */ @import url('https://fonts.googleapis.com/css2?family=Inter:wght@100..900&display=swap'); body { font-family: 'Inter', sans-serif; background-color: #f7f9fb; /* Light background for the overall page */ } .card { box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 0px 10px -5px rgba(0, 0, 0, 0.04); } .calc-button { transition: all 0.2s ease-in-out; } .calc-button:hover { transform: translateY(-1px); box-shadow: 0 4px 10px rgba(16, 185, 129, 0.4); } /* Styling for the output table */ #results-table td, #results-table th { padding: 10px 16px; border-bottom: 1px solid #e5e7eb; text-align: left; } #results-table th { width: 50%; font-weight: 600; color: #374151; } #results-table tr:last-child td { border-bottom: none; } /* Custom green color for branding (similar to medical/calming tones) */ .brand-color { background-color: #10b981; /* Emerald 500 */ } .brand-text { color: #10b981; } // Set Firebase config and App ID for potential future data storage (not used in this simple calculator) const appId = typeof __app_id !== 'undefined' ? __app_id : 'default-app-id'; const firebaseConfig = typeof __firebase_config !== 'undefined' ? JSON.parse(__firebase_config) : {}; const initialAuthToken = typeof __initial_auth_token !== 'undefined' ? __initial_auth_token : null; document.getElementById('calculateButton').addEventListener('click', calculateDates);function calculateDates() { const lmpDateStr = document.getElementById('lmpDate').value; const errorMessage = document.getElementById('error-message'); const resultsContainer = document.getElementById('results-container'); if (!lmpDateStr) { errorMessage.classList.remove('hidden'); resultsContainer.classList.add('hidden'); return; }errorMessage.classList.add('hidden');const lmpDate = new Date(lmpDateStr); const today = new Date(); // Time difference in milliseconds const diffTime = today.getTime() - lmpDate.getTime(); const diffDays = Math.ceil(diffTime / (1000 * 60 * 60 * 24));// Naegele's Rule: EDD = LMP + 280 days (40 weeks) const EDD = new Date(lmpDate.getTime() + (280 * 24 * 60 * 60 * 1000)); // Conception: LMP + 14 days const conceptionDate = new Date(lmpDate.getTime() + (14 * 24 * 60 * 60 * 1000));// Current Gestational Age (in days) let weeks = Math.floor(diffDays / 7); let days = diffDays % 7; // Handle edge case where LMP date is in the future or today if (diffDays < 0) { weeks = 0; days = 0; document.getElementById('ga-output').textContent = 'Not yet pregnant'; document.getElementById('edd-output').textContent = 'N/A'; document.getElementById('conception-output').textContent = 'N/A'; document.getElementById('results-table').getElementsByTagName('tbody')[0].innerHTML = 'Please enter a date in the past.'; resultsContainer.classList.remove('hidden'); return; }// --- Display Summary Results --- const formatter = new Intl.DateTimeFormat('en-US', { month: 'long', day: 'numeric', year: 'numeric' }); document.getElementById('edd-output').textContent = formatter.format(EDD); document.getElementById('ga-output').textContent = `${weeks} weeks, ${days} days`; document.getElementById('conception-output').textContent = formatter.format(conceptionDate);// --- Generate Milestone Table Data --- const milestones = [ { weeks: 6, title: "First Ultrasound/Heartbeat Visible", description: "Around this time, your provider may schedule the first ultrasound to confirm pregnancy and check for a heartbeat." }, { weeks: 8, title: "First Prenatal Visit/Dating Scan", description: "Initial, comprehensive appointment with your Philadelphia OB/GYN or midwife." }, { weeks: 12, title: "End of First Trimester", description: "The period of highest risk significantly decreases. Key screening tests may be offered." }, { weeks: 16, title: "Quad/Screening Test Window", description: "Timeframe for optional tests to screen for certain genetic conditions." }, { weeks: 20, title: "Anatomy Scan (Mid-Pregnancy Scan)", description: "Detailed ultrasound to check the baby's development. Gender reveal possible!" }, { weeks: 24, title: "Fetal Viability Point", description: "Point at which the baby has a chance of survival outside the womb with intensive care." }, { weeks: 28, title: "Start of Third Trimester", description: "Appointments usually increase to every two weeks. Glucose screening for gestational diabetes." }, { weeks: 36, title: "GBS Swab Test & Weekly Visits Start", description: "Group B Strep screening performed. Appointments become weekly until delivery." }, { weeks: 37, title: "Full Term", description: "The baby is considered full term. Labor could begin any day!" }, { weeks: 40, title: "Estimated Due Date (EDD)", description: "The calculated due date. Only about 5% of babies arrive on this exact day." } ];const tableBody = document.getElementById('results-table').getElementsByTagName('tbody')[0]; tableBody.innerHTML = ''; // Clear previous resultsmilestones.forEach(m => { const milestoneDate = new Date(lmpDate.getTime() + (m.weeks * 7 * 24 * 60 * 60 * 1000)); // Only show future/past milestones relative to the LMP, ensuring they make sense if (milestoneDate.getTime() >= lmpDate.getTime()) { const row = tableBody.insertRow(); // Column 1: Date & Week const cell1 = row.insertCell(); cell1.innerHTML = `

${formatter.format(milestoneDate)}

(${m.weeks} Weeks LMP)

`;// Column 2: Milestone Description const cell2 = row.insertCell(); cell2.innerHTML = `

${m.title}

${m.description}

`; // Highlight the current milestone row if (weeks === m.weeks && days >= 0) { row.classList.add('bg-yellow-50', 'border-yellow-200'); } else if (milestoneDate.getTime() < today.getTime()) { row.classList.add('bg-gray-50', 'text-gray-400'); // Faded for past events } else { row.classList.add('hover:bg-gray-50'); } } });// Show the results section resultsContainer.classList.remove('hidden');// Scroll to results for better UX on mobile resultsContainer.scrollIntoView({ behavior: 'smooth', block: 'start' }); }