const {
  Document, Packer, Paragraph, TextRun, Table, TableRow, TableCell,
  AlignmentType, HeadingLevel, BorderStyle, WidthType, ShadingType,
  VerticalAlign, PageNumber, Header, Footer, TabStopType, TabStopPosition,
  UnderlineType
} = require('docx');
const fs = require('fs');

// ─── STYLES HELPER ──────────────────────────────────────────────────────────

const TITLE_PARA = (text) => new Paragraph({
  alignment: AlignmentType.CENTER,
  spacing: { after: 100 },
  children: [new TextRun({ text, bold: true, size: 32, font: "Times New Roman" })]
});

const SUBTITLE_PARA = (text) => new Paragraph({
  alignment: AlignmentType.CENTER,
  spacing: { after: 80 },
  children: [new TextRun({ text, bold: true, size: 26, font: "Times New Roman", color: "2E4057" })]
});

const DIVIDER = () => new Paragraph({
  alignment: AlignmentType.CENTER,
  border: { bottom: { color: "2E4057", space: 1, style: BorderStyle.SINGLE, size: 6 } },
  spacing: { after: 160, before: 80 },
  children: [new TextRun({ text: "" })]
});

const SECTION_HEADING = (text) => new Paragraph({
  heading: HeadingLevel.HEADING_1,
  spacing: { before: 280, after: 120 },
  shading: { type: ShadingType.SOLID, color: "2E4057" },
  children: [new TextRun({ text: `  ${text}  `, bold: true, size: 24, color: "FFFFFF", font: "Times New Roman" })]
});

const TOPIC_HEADING = (text) => new Paragraph({
  heading: HeadingLevel.HEADING_2,
  spacing: { before: 200, after: 80 },
  children: [new TextRun({ text, bold: true, size: 22, color: "1B4F72", font: "Times New Roman" })]
});

const QTYPE_LABEL = (text) => new Paragraph({
  spacing: { before: 120, after: 60 },
  children: [new TextRun({ text, bold: true, size: 20, underline: { type: UnderlineType.SINGLE }, font: "Times New Roman", color: "C0392B" })]
});

const Q = (num, text, marks) => new Paragraph({
  spacing: { after: 60 },
  indent: { left: 360 },
  children: [
    new TextRun({ text: `${num}. `, bold: true, size: 20, font: "Times New Roman" }),
    new TextRun({ text, size: 20, font: "Times New Roman" }),
    marks ? new TextRun({ text: `  [${marks} Marks]`, bold: true, size: 18, color: "555555", font: "Times New Roman" }) : new TextRun("")
  ]
});

const MCQ_Q = (num, text, opts, ans) => {
  const children = [
    new TextRun({ text: `${num}. `, bold: true, size: 20, font: "Times New Roman" }),
    new TextRun({ text: `${text}\n`, size: 20, font: "Times New Roman" })
  ];
  opts.forEach((o, i) => {
    const letter = String.fromCharCode(65 + i);
    const isAns = letter === ans;
    children.push(new TextRun({
      text: `        ${letter}) ${o}${i < opts.length - 1 ? "    " : ""}`,
      size: 19,
      font: "Times New Roman",
      bold: isAns,
      color: isAns ? "1A5276" : "333333"
    }));
  });
  children.push(new TextRun({ text: `  [Ans: ${ans}]`, bold: true, size: 17, color: "1A5276", font: "Times New Roman" }));
  return new Paragraph({ spacing: { after: 80 }, indent: { left: 360 }, children });
};

const NOTE = (text) => new Paragraph({
  spacing: { after: 40, before: 40 },
  indent: { left: 720 },
  children: [new TextRun({ text: `• ${text}`, italics: true, size: 18, color: "666666", font: "Times New Roman" })]
});

const BLANK = (n = 1) => Array.from({ length: n }, () =>
  new Paragraph({ spacing: { after: 40 }, children: [new TextRun({ text: "" })] })
);

// ─── QUESTION BANK DATA ──────────────────────────────────────────────────────

const qbank = [

// ══════════════════════════════════════════════════════
// UNIT 1: CONCEPTS OF HEALTH AND DISEASE
// ══════════════════════════════════════════════════════
{
  unit: "UNIT I: CONCEPTS OF HEALTH AND DISEASE",
  topics: [
    {
      name: "Concept of Health",
      laq: [
        "Define Health. Describe the dimensions and determinants of health with examples.",
        "Explain the concept of health promotion. Discuss the Ottawa Charter and its relevance to public health.",
        "Define disease. Explain the natural history of disease and levels of prevention with examples."
      ],
      saq: [
        "Define health. List the determinants of health. (Park's Textbook of PSM)",
        "Write a note on Physical Quality of Life Index (PQLI).",
        "Describe the epidemiological triad.",
        "What is Health Transition? Explain with examples.",
        "Define and describe Health for All (HFA) 2000 and its current relevance.",
        "Write short notes on Disability Adjusted Life Year (DALY).",
        "What is Iceberg phenomenon of disease?",
        "Describe levels of prevention with an example from tuberculosis."
      ],
      mcq: [
        { q: "WHO definition of health was given in:", opts: ["1946", "1948", "1950", "1978"], ans: "B" },
        { q: "Which of the following is NOT a dimension of health according to WHO?", opts: ["Physical", "Mental", "Social", "Political"], ans: "D" },
        { q: "Physical Quality of Life Index (PQLI) was developed by:", opts: ["WHO", "Morris", "UNDP", "World Bank"], ans: "B" },
        { q: "Spectrum of disease ranges from:", opts: ["Exposure to death", "Sub-clinical to clinical disease", "Agent to host", "All of the above"], ans: "B" },
        { q: "Primary level of prevention includes:", opts: ["Early diagnosis", "Health promotion and specific protection", "Rehabilitation", "Limitation of disability"], ans: "B" },
        { q: "Iceberg phenomenon refers to:", opts: ["Visible part of disease in community", "Hidden part of disease in community", "Both visible and hidden disease", "Environmental diseases only"], ans: "B" },
        { q: "DALY stands for:", opts: ["Disease Adjusted Life Year", "Disability Adjusted Life Year", "Death Adjusted Life Year", "Developmental Adjusted Life Year"], ans: "B" },
        { q: "Alma Ata Declaration (1978) emphasized:", opts: ["Hospital care", "Specialist services", "Primary Health Care", "Tertiary care"], ans: "C" }
      ]
    }
  ]
},

// ══════════════════════════════════════════════════════
// UNIT 2: EPIDEMIOLOGY
// ══════════════════════════════════════════════════════
{
  unit: "UNIT II: EPIDEMIOLOGY",
  topics: [
    {
      name: "Principles and Methods of Epidemiology",
      laq: [
        "Define Epidemiology. Describe various epidemiological methods with their merits and demerits.",
        "Define a Cohort study. Describe the design, advantages, and disadvantages of a prospective cohort study with an example.",
        "Explain the case-control study design. Mention the advantages, disadvantages, and measures of association used.",
        "Describe randomized controlled trials (RCTs). How do they differ from observational studies? Discuss with examples."
      ],
      saq: [
        "Define Incidence and Prevalence. Describe the relationship between them.",
        "Write a note on attack rate and secondary attack rate.",
        "Describe the epidemiological triad – agent, host, and environment.",
        "What is an epidemic? Differentiate between point source and propagated epidemics.",
        "Define screening. Write the criteria for a good screening test (Wilson and Jungner criteria).",
        "What is Sensitivity and Specificity? Explain with a 2x2 table.",
        "Describe cross-sectional study design.",
        "Write short notes on Odds Ratio and Relative Risk.",
        "What is confounding? How can it be controlled?",
        "Explain selection bias and information bias."
      ],
      mcq: [
        { q: "Prevalence is related to incidence by:", opts: ["Prevalence = Incidence x Duration", "Incidence = Prevalence x Duration", "Prevalence = Incidence / Duration", "Prevalence = Incidence + Duration"], ans: "A" },
        { q: "In a case-control study, the measure of association used is:", opts: ["Relative Risk", "Odds Ratio", "Attributable Risk", "Incidence Rate Ratio"], ans: "B" },
        { q: "Gold standard study for determining causation is:", opts: ["Cohort study", "Case-control study", "RCT", "Cross-sectional study"], ans: "C" },
        { q: "Sensitivity of a test means:", opts: ["Ability to detect true negatives", "Ability to detect true positives", "Proportion of false positives", "Proportion of false negatives"], ans: "B" },
        { q: "Which of the following is the most appropriate study for rare diseases?", opts: ["Cohort study", "RCT", "Case-control study", "Cross-sectional study"], ans: "C" },
        { q: "Herd immunity threshold for measles is approximately:", opts: ["50%", "70%", "83-94%", "99%"], ans: "C" },
        { q: "Point source epidemic shows:", opts: ["Bell-shaped curve", "Gradual rise and fall", "Sharply peaked curve within one incubation period", "Multiple peaks"], ans: "C" },
        { q: "Null hypothesis in a study means:", opts: ["There is a significant difference", "There is no significant difference", "The study is invalid", "The sample is biased"], ans: "B" }
      ]
    },
    {
      name: "Biostatistics",
      laq: [
        "Define Biostatistics. Describe the measures of central tendency and measures of dispersion with examples.",
        "Explain the concept of normal distribution. Describe the tests of significance commonly used in medical research."
      ],
      saq: [
        "Define Mean, Median, and Mode. When is each used?",
        "What is standard deviation? What is its significance?",
        "Explain Chi-square test and its applications.",
        "What is p-value? Explain its significance in medical research.",
        "Describe types of data in biostatistics.",
        "What is sampling? Describe random sampling methods.",
        "Explain Type I and Type II errors.",
        "Define confidence interval and its use."
      ],
      mcq: [
        { q: "The most stable measure of central tendency is:", opts: ["Mean", "Median", "Mode", "Range"], ans: "A" },
        { q: "Standard deviation measures:", opts: ["Central tendency", "Dispersion", "Correlation", "Regression"], ans: "B" },
        { q: "Chi-square test is used for:", opts: ["Continuous data comparison", "Categorical data analysis", "Correlation", "Survival analysis"], ans: "B" },
        { q: "Probability value (p < 0.05) indicates:", opts: ["Not statistically significant", "Statistically significant", "Random error", "Bias"], ans: "B" },
        { q: "In normal distribution, what % of values fall within 1 SD of mean?", opts: ["95.4%", "68.2%", "99.7%", "50%"], ans: "B" },
        { q: "Type II error is:", opts: ["Rejecting a true null hypothesis", "Accepting a false null hypothesis", "Sampling bias", "Selection bias"], ans: "B" }
      ]
    }
  ]
},

// ══════════════════════════════════════════════════════
// UNIT 3: COMMUNICABLE DISEASES
// ══════════════════════════════════════════════════════
{
  unit: "UNIT III: COMMUNICABLE DISEASES",
  topics: [
    {
      name: "General Principles & Specific Diseases",
      laq: [
        "Describe the epidemiology, clinical features, diagnosis, and control measures of Tuberculosis in India.",
        "Describe the Revised National Tuberculosis Control Programme (RNTCP / NTP) - its objectives, DOTS strategy, and achievements.",
        "Write in detail about the epidemiology, clinical features, transmission, and control of Malaria.",
        "Describe the National Malaria Eradication Programme (NMEP) / National Vector Borne Disease Control Programme (NVBDCP).",
        "Write about the epidemiology, prevention, and control of HIV/AIDS in India including NACP.",
        "Describe the epidemiology, clinical features, and control of Typhoid fever.",
        "Write a detailed account on the epidemiology and control of Rabies.",
        "Describe the immunization schedule as per Universal Immunization Programme (UIP) in India."
      ],
      saq: [
        "Write a short note on DOTS strategy in tuberculosis control.",
        "Describe the Sputum smear examination in tuberculosis.",
        "What is Mantoux test? How is it interpreted?",
        "Write a note on epidemiology of Dengue fever and its prevention.",
        "What is Widal test? When is it positive?",
        "Describe the life cycle of Plasmodium vivax.",
        "Write a note on Lymphatic Filariasis - transmission and control.",
        "What is the difference between epidemic and pandemic? Give examples.",
        "Describe the cold chain in immunization.",
        "Enumerate the vaccines in National Immunization Schedule.",
        "Write about BCG vaccine - type, dose, route, and schedule.",
        "Define Herd immunity and give its importance.",
        "Describe the epidemiology of Cholera and its control.",
        "What is the role of surveillance in communicable disease control?",
        "Write a short note on Integrated Disease Surveillance Programme (IDSP)."
      ],
      mcq: [
        { q: "DOTS in RNTCP stands for:", opts: ["Daily Oral Therapy for Sputum", "Directly Observed Treatment Short-course", "Drug Oriented Tuberculosis Strategy", "None of the above"], ans: "B" },
        { q: "Mantoux test uses:", opts: ["0.1 ml of PPD intradermally", "0.1 ml of BCG subcutaneously", "1 ml PPD intramuscularly", "0.5 ml BCG intradermally"], ans: "A" },
        { q: "The vector for Dengue fever is:", opts: ["Anopheles mosquito", "Culex mosquito", "Aedes aegypti mosquito", "Sand fly"], ans: "C" },
        { q: "BCG vaccine is a:", opts: ["Killed vaccine", "Live attenuated vaccine", "Toxoid", "Sub-unit vaccine"], ans: "B" },
        { q: "Incubation period of cholera is:", opts: ["1-3 hours", "Few hours to 5 days", "7-14 days", "2-4 weeks"], ans: "B" },
        { q: "Drug of choice for Plasmodium vivax malaria is:", opts: ["Artesunate", "Quinine", "Chloroquine", "Doxycycline"], ans: "C" },
        { q: "Rabies is caused by:", opts: ["Coronavirus", "Rhabdovirus (Lyssavirus)", "Togavirus", "Flavivirus"], ans: "B" },
        { q: "Universal Immunization Programme (UIP) was launched in India in:", opts: ["1978", "1985", "1990", "2000"], ans: "B" },
        { q: "Cold chain temperature for storing OPV is:", opts: ["+2 to +8°C", "-15 to -25°C", "Room temperature", "+10 to +15°C"], ans: "B" },
        { q: "Which malaria parasite causes cerebral malaria?", opts: ["P. vivax", "P. malariae", "P. falciparum", "P. ovale"], ans: "C" }
      ]
    }
  ]
},

// ══════════════════════════════════════════════════════
// UNIT 4: NON-COMMUNICABLE DISEASES
// ══════════════════════════════════════════════════════
{
  unit: "UNIT IV: NON-COMMUNICABLE DISEASES",
  topics: [
    {
      name: "Major NCDs and National Programmes",
      laq: [
        "Describe the epidemiology, risk factors, and prevention of Coronary Heart Disease (CHD).",
        "Write in detail about the epidemiology, screening, and prevention of Cancer in India. Describe the National Cancer Control Programme.",
        "Discuss the epidemiology, complications, and prevention strategies for Diabetes Mellitus in India.",
        "Describe the National Programme for Prevention and Control of Cancer, Diabetes, Cardiovascular Diseases and Stroke (NPCDCS)."
      ],
      saq: [
        "Write a note on risk factors for coronary artery disease.",
        "Describe the Pap smear test - indications and interpretation.",
        "What is metabolic syndrome? List its components.",
        "Write short notes on Framingham risk score.",
        "Describe the steps in cancer prevention.",
        "What are the warning signals of cancer (CAUTION)?",
        "Write a note on tobacco control and the National Tobacco Control Programme.",
        "Describe the epidemiology of hypertension in India.",
        "What is COPD? Describe its risk factors and prevention.",
        "Write short notes on obesity - measurement and its health implications."
      ],
      mcq: [
        { q: "Commonest cancer in Indian females is:", opts: ["Lung cancer", "Cervical cancer", "Breast cancer", "Ovarian cancer"], ans: "C" },
        { q: "Pap smear is used for early detection of cancer of:", opts: ["Breast", "Ovary", "Cervix", "Endometrium"], ans: "C" },
        { q: "WHO defines hypertension as BP ≥:", opts: ["130/80 mmHg", "140/90 mmHg", "150/100 mmHg", "160/110 mmHg"], ans: "B" },
        { q: "BMI for obesity (WHO criteria) is:", opts: ["≥25 kg/m²", "≥27 kg/m²", "≥30 kg/m²", "≥35 kg/m²"], ans: "C" },
        { q: "Metabolic syndrome includes all EXCEPT:", opts: ["Central obesity", "Hyperglycemia", "Dyslipidemia", "Hypotension"], ans: "D" },
        { q: "Framingham Heart Study primarily assessed risk factors for:", opts: ["Stroke", "Coronary artery disease", "Hypertension", "Diabetes"], ans: "B" },
        { q: "Modifiable risk factor for CHD:", opts: ["Age", "Sex", "Family history", "Smoking"], ans: "D" },
        { q: "HbA1c level diagnostic of diabetes is:", opts: ["≥5.7%", "≥6.5%", "≥7.0%", "≥8.0%"], ans: "B" }
      ]
    }
  ]
},

// ══════════════════════════════════════════════════════
// UNIT 5: ENVIRONMENTAL HEALTH
// ══════════════════════════════════════════════════════
{
  unit: "UNIT V: ENVIRONMENTAL & OCCUPATIONAL HEALTH",
  topics: [
    {
      name: "Water, Air, Housing and Waste Management",
      laq: [
        "Describe the sources of water supply. Explain the methods of water purification at community level.",
        "Describe the health effects of air pollution. Discuss the control measures for indoor and outdoor air pollution.",
        "Write in detail about the methods of excreta disposal in rural areas. Describe sanitary latrine construction.",
        "Describe the management of solid waste and healthcare waste in a hospital setting."
      ],
      saq: [
        "What are the standard requirements for safe drinking water (WHO/BIS standards)?",
        "Describe chlorination of water - chlorine demand, free residual chlorine.",
        "Write a note on fluorosis - sources of fluoride and health effects.",
        "What is BOD and COD? Explain their significance.",
        "Describe the health hazards of poor housing.",
        "Write short notes on sewage treatment methods.",
        "What is noise pollution? Describe its health effects.",
        "Explain the term 'Greenhouse effect' and its health implications.",
        "What is indoor air pollution? Enumerate its sources and effects.",
        "Describe the medical entomology of mosquitoes."
      ],
      mcq: [
        { q: "Permissible limit of fluoride in drinking water (WHO) is:", opts: ["0.5 mg/L", "1.0 mg/L", "1.5 mg/L", "2.0 mg/L"], ans: "C" },
        { q: "Free residual chlorine after 30 minutes contact is:", opts: ["0.1 mg/L", "0.2 mg/L", "0.5 mg/L", "1.0 mg/L"], ans: "C" },
        { q: "Minamata disease is caused by:", opts: ["Lead poisoning", "Mercury poisoning", "Cadmium poisoning", "Arsenic poisoning"], ans: "B" },
        { q: "Itai-Itai disease is caused by:", opts: ["Mercury", "Lead", "Cadmium", "Arsenic"], ans: "C" },
        { q: "BOD is the measure of:", opts: ["Chemical pollutants in water", "Organic pollution of water", "Physical impurities in water", "Bacterial count in water"], ans: "B" },
        { q: "Standard threshold noise level for industrial areas is:", opts: ["45 dB", "55 dB", "75 dB", "90 dB"], ans: "D" },
        { q: "Hookworm infection enters the body through:", opts: ["Contaminated water", "Penetration through skin", "Mosquito bite", "Contaminated food"], ans: "B" },
        { q: "Cryptosporidiosis is caused by:", opts: ["Bacteria", "Virus", "Protozoa", "Fungi"], ans: "C" }
      ]
    },
    {
      name: "Occupational Health",
      laq: [
        "Describe occupational hazards in different industries. Explain the concept of occupational disease and their prevention.",
        "Write about Pneumoconiosis - types, etiology, pathology, clinical features, and prevention."
      ],
      saq: [
        "What is Silicosis? Describe its etiology and prevention.",
        "Write a note on occupational health services in India.",
        "Describe the prevention of occupational diseases.",
        "What are the Factories Act provisions for worker health?",
        "Write a short note on Byssinosis.",
        "What is Asbestosis? Describe its complications.",
        "Explain the term 'Sick Building Syndrome'.",
        "Write about heat exhaustion and heat stroke - differences and management."
      ],
      mcq: [
        { q: "Silicosis is caused by inhalation of:", opts: ["Coal dust", "Silica (free SiO2) dust", "Asbestos fibres", "Cotton dust"], ans: "B" },
        { q: "Byssinosis is an occupational disease of:", opts: ["Coal miners", "Cotton textile workers", "Asbestos workers", "Foundry workers"], ans: "B" },
        { q: "Mesothelioma is associated with:", opts: ["Silica", "Coal", "Asbestos", "Cotton"], ans: "C" },
        { q: "Occupational disease caused by exposure to lead is:", opts: ["Plumbism", "Mercurialism", "Arsenicosis", "Fluorosis"], ans: "A" },
        { q: "TLV stands for:", opts: ["Threshold Limit Value", "Total Lung Volume", "Toxic Level Value", "None"], ans: "A" }
      ]
    }
  ]
},

// ══════════════════════════════════════════════════════
// UNIT 6: NUTRITION
// ══════════════════════════════════════════════════════
{
  unit: "UNIT VI: NUTRITION AND HEALTH",
  topics: [
    {
      name: "Nutrition - Normal and Deficiency",
      laq: [
        "Describe Protein Energy Malnutrition (PEM). Discuss the clinical features, diagnosis (Gomez classification, Wellcome classification), and prevention.",
        "Describe the nutritional deficiency disorders common in India - their etiology, clinical features, prevention, and control.",
        "Discuss the National Nutrition Policy and nutrition programmes of India including ICDS."
      ],
      saq: [
        "Differentiate between Kwashiorkor and Marasmus.",
        "What is Vitamin A deficiency? Describe Bitot's spots.",
        "Describe the prevention of Vitamin A deficiency - national programme.",
        "Write a note on Iron Deficiency Anaemia - epidemiology and prevention.",
        "What is rickets? Describe its etiology and clinical features.",
        "Write about balanced diet and recommended dietary allowances (RDA).",
        "Describe the Mid-Day Meal Scheme in India.",
        "Write a note on Iodine Deficiency Disorders (IDD) and National IDD Control Programme.",
        "What is pellagra? Describe its clinical features.",
        "Write about the importance of breastfeeding and WHO/UNICEF recommendations."
      ],
      mcq: [
        { q: "Kwashiorkor is primarily due to deficiency of:", opts: ["Total calories", "Protein", "Vitamins", "Minerals"], ans: "B" },
        { q: "Bitot's spots in Vitamin A deficiency are seen on:", opts: ["Cornea", "Conjunctiva", "Retina", "Lens"], ans: "B" },
        { q: "Night blindness is the earliest sign of:", opts: ["Vitamin D deficiency", "Vitamin A deficiency", "Vitamin B12 deficiency", "Vitamin C deficiency"], ans: "B" },
        { q: "Goitre is due to deficiency of:", opts: ["Fluoride", "Iron", "Iodine", "Calcium"], ans: "C" },
        { q: "Pellagra is caused by deficiency of:", opts: ["Thiamine (B1)", "Riboflavin (B2)", "Niacin (B3)", "Pyridoxine (B6)"], ans: "C" },
        { q: "Scurvy is caused by deficiency of:", opts: ["Vitamin A", "Vitamin B12", "Vitamin C", "Vitamin D"], ans: "C" },
        { q: "ICDS stands for:", opts: ["Integrated Child Development Services", "Indian Child Disease Survey", "Intensive Community Development Services", "None"], ans: "A" },
        { q: "Gomez classification is used for:", opts: ["Acute malnutrition", "Chronic malnutrition", "Assessment of wasting", "Classification of PEM by weight for age"], ans: "D" }
      ]
    }
  ]
},

// ══════════════════════════════════════════════════════
// UNIT 7: DEMOGRAPHY AND VITAL STATISTICS
// ══════════════════════════════════════════════════════
{
  unit: "UNIT VII: DEMOGRAPHY AND VITAL STATISTICS",
  topics: [
    {
      name: "Demographic Indicators and Population Programmes",
      laq: [
        "Define demography. Describe the demographic cycle (transition) with stages and its significance to India.",
        "Describe vital statistics - definition, sources, and uses. Explain the methods of computing birth rate, death rate, and infant mortality rate.",
        "Write in detail about the Family Welfare Programme in India - its evolution, targets, and current strategies (Mission Parivar Vikas)."
      ],
      saq: [
        "Define and calculate Crude Birth Rate, Crude Death Rate, and Natural Growth Rate.",
        "What is Total Fertility Rate (TFR)? What is the TFR of India currently?",
        "Define Infant Mortality Rate (IMR). What are its components?",
        "Write a note on Maternal Mortality Rate (MMR) and India's progress.",
        "What is Census? Describe its utility in public health.",
        "Write short notes on Population pyramid.",
        "Describe intrauterine devices (IUDs) - types and mechanism.",
        "Write about male sterilization (vasectomy) - technique and advantages.",
        "What is the National Population Policy (NPP 2000)?",
        "Describe the Registration of Births and Deaths Act."
      ],
      mcq: [
        { q: "Infant Mortality Rate is the number of deaths per 1000:", opts: ["Total population", "Live births", "Total births", "Children under 5"], ans: "B" },
        { q: "Replacement level of fertility (TFR) is:", opts: ["1.5", "2.1", "2.5", "3.0"], ans: "B" },
        { q: "Census in India is conducted every:", opts: ["5 years", "7 years", "10 years", "15 years"], ans: "C" },
        { q: "Maternal Mortality Ratio is deaths per 100,000:", opts: ["Total population", "Women of reproductive age", "Live births", "Total births"], ans: "C" },
        { q: "The demographic transition theory was given by:", opts: ["Warren Thompson", "Thomas Malthus", "UN", "WHO"], ans: "A" },
        { q: "Copper-T is a type of:", opts: ["Oral contraceptive", "Intrauterine device", "Barrier method", "Emergency contraceptive"], ans: "B" },
        { q: "NRR (Net Reproductive Rate) of 1 indicates:", opts: ["Population decrease", "Population increase", "Stationary population", "Rapid growth"], ans: "C" }
      ]
    }
  ]
},

// ══════════════════════════════════════════════════════
// UNIT 8: HEALTH CARE DELIVERY
// ══════════════════════════════════════════════════════
{
  unit: "UNIT VIII: HEALTH CARE DELIVERY SYSTEM",
  topics: [
    {
      name: "Health System in India & National Health Programmes",
      laq: [
        "Describe the health care delivery system in India at various levels - Primary, Secondary, and Tertiary. Discuss the role of each level.",
        "Write in detail about Primary Health Centres (PHC) - structure, functions, staffing, and services under National Health Mission.",
        "Describe National Health Mission (NHM) - its components (NRHM and NUHM), key interventions, and achievements.",
        "Describe the Reproductive, Maternal, Newborn, Child, and Adolescent Health (RMNCH+A) strategy and its components."
      ],
      saq: [
        "What is the population norm for a Sub-Centre, PHC, and Community Health Centre?",
        "Describe the functions of a Health Sub-Centre.",
        "What is ASHA? Describe her role.",
        "Write a note on Anganwadi and its services.",
        "Describe the Pradhan Mantri Jan Arogya Yojana (PM-JAY) / Ayushman Bharat scheme.",
        "What are the Millennium Development Goals (MDGs) and Sustainable Development Goals (SDGs)?",
        "Write a short note on Accredited Social Health Activist (ASHA).",
        "Describe the Janani Suraksha Yojana (JSY).",
        "What is the Indian Public Health Standards (IPHS)?",
        "Write a note on District Health Action Plan."
      ],
      mcq: [
        { q: "A Primary Health Centre (PHC) caters to a population of:", opts: ["5,000", "10,000", "30,000", "1,00,000"], ans: "C" },
        { q: "ASHA was introduced under:", opts: ["ICDS", "NRHM", "DOTS", "UIP"], ans: "B" },
        { q: "Community Health Centre serves a population of:", opts: ["30,000", "80,000-1,20,000", "1,00,000", "5,00,000"], ans: "B" },
        { q: "Sub-centre covers a population of (plain areas):", opts: ["3,000", "5,000", "10,000", "30,000"], ans: "B" },
        { q: "Ayushman Bharat provides health cover up to:", opts: ["Rs 2 lakh", "Rs 3 lakh", "Rs 5 lakh", "Rs 10 lakh"], ans: "C" },
        { q: "Janani Suraksha Yojana promotes:", opts: ["Antenatal care", "Institutional delivery", "Immunization", "Nutrition"], ans: "B" },
        { q: "SDG Goal 3 focuses on:", opts: ["No poverty", "Quality education", "Good health and well-being", "Clean water"], ans: "C" },
        { q: "The national NRHM was launched in:", opts: ["2000", "2005", "2008", "2010"], ans: "B" }
      ]
    }
  ]
},

// ══════════════════════════════════════════════════════
// UNIT 9: MCH & SCHOOL HEALTH
// ══════════════════════════════════════════════════════
{
  unit: "UNIT IX: MATERNAL & CHILD HEALTH, SCHOOL HEALTH",
  topics: [
    {
      name: "MCH Services and School Health",
      laq: [
        "Describe the maternal health services in India - antenatal, intranatal, and postnatal care. Discuss the role of the health team.",
        "Write in detail about child health services in India - integrated management of childhood illness (IMCI), newborn care, and IMNCI.",
        "Describe the school health programme in India - its objectives, components, and services."
      ],
      saq: [
        "What are the essential antenatal care services?",
        "Describe the '3 delays' model of maternal mortality.",
        "What is IMNCI? Enumerate its components.",
        "Write a short note on Kangaroo Mother Care.",
        "Describe the growth monitoring of children - use of Road-to-Health card.",
        "What is eclampsia? What are the risk factors?",
        "Write a note on the Integrated Management of Neonatal and Childhood Illness (IMNCI).",
        "Describe the school health services.",
        "What is preterm birth? Describe its complications.",
        "Write about the nutrition in adolescence - special needs."
      ],
      mcq: [
        { q: "Safe motherhood initiative was launched in:", opts: ["1985", "1987", "1990", "2000"], ans: "B" },
        { q: "Antenatal registration should ideally occur by:", opts: ["8 weeks", "12 weeks", "16 weeks", "20 weeks"], ans: "B" },
        { q: "Pre-eclampsia is defined as BP ≥ 140/90 with:", opts: ["Oedema", "Proteinuria", "Headache", "Visual disturbance"], ans: "B" },
        { q: "WHO recommends minimum number of ANC visits as:", opts: ["2", "4", "6", "8"], ans: "D" },
        { q: "Birth asphyxia is assessed by:", opts: ["Apgar score", "Silverman score", "Bishop score", "LATCH score"], ans: "A" },
        { q: "IMNCI was developed by:", opts: ["UNICEF alone", "WHO and UNICEF jointly", "Government of India", "World Bank"], ans: "B" }
      ]
    }
  ]
},

// ══════════════════════════════════════════════════════
// UNIT 10: HEALTH EDUCATION & COMMUNICATION
// ══════════════════════════════════════════════════════
{
  unit: "UNIT X: HEALTH EDUCATION AND COMMUNICATION",
  topics: [
    {
      name: "Health Education Methods and IEC",
      laq: [
        "Define Health Education. Describe the principles, methods, and media used in health education.",
        "Describe Behavior Change Communication (BCC) - models and approaches used in public health."
      ],
      saq: [
        "What are the principles of health education?",
        "Describe the methods of health education - individual and group methods.",
        "Write a note on flip chart and flannel board as educational aids.",
        "What is KAP survey? What is its significance?",
        "Describe the Health Belief Model.",
        "What is IEC? Describe its components.",
        "Write about audio-visual aids in health education.",
        "What is community participation? Explain its importance."
      ],
      mcq: [
        { q: "KAP stands for:", opts: ["Knowledge, Attitude, Practice", "Knowledge, Application, Performance", "Know, Apply, Practice", "None"], ans: "A" },
        { q: "Which of the following is a group method of health education?", opts: ["Home visit", "Counselling", "Panel discussion", "Pamphlet"], ans: "C" },
        { q: "Health Belief Model was given by:", opts: ["Rosenstock", "Bandura", "Prochaska", "Antonovsky"], ans: "A" },
        { q: "The most effective method for individual behaviour change is:", opts: ["Mass media", "Group discussion", "Personal counselling", "Pamphlets"], ans: "C" },
        { q: "IEC stands for:", opts: ["International Education and Communication", "Information, Education and Communication", "Interactive Electronic Communication", "None"], ans: "B" }
      ]
    }
  ]
},

// ══════════════════════════════════════════════════════
// UNIT 11: GERIATRICS, MENTAL HEALTH, SOCIAL MEDICINE
// ══════════════════════════════════════════════════════
{
  unit: "UNIT XI: GERIATRICS, MENTAL HEALTH & SOCIAL MEDICINE",
  topics: [
    {
      name: "Special Populations and Social Issues",
      laq: [
        "Describe the National Mental Health Programme (NMHP) in India - objectives, components, and achievements.",
        "Write in detail about the health problems of the elderly in India and the National Programme for Health Care of the Elderly (NPHCE)."
      ],
      saq: [
        "What are the common mental health problems in India?",
        "Define rehabilitation. Describe the types and principles of rehabilitation.",
        "Write a note on community-based rehabilitation (CBR).",
        "Describe the health problems of adolescents in India.",
        "What is Rashtriya Kishor Swasthya Karyakram (RKSK)?",
        "Write about domestic violence - types and health consequences.",
        "What are the social determinants of health?",
        "Describe the health issues of women in India.",
        "What is food adulteration? Describe the Prevention of Food Adulteration (PFA) Act.",
        "Write a note on Disaster Management - phases and role of health workers."
      ],
      mcq: [
        { q: "NMHP was launched in India in:", opts: ["1980", "1982", "1990", "2000"], ans: "B" },
        { q: "Community-based rehabilitation is based on the principle of:", opts: ["Hospital-based care", "Institutional care", "Community participation", "Medical model"], ans: "C" },
        { q: "Elderly population in India is those aged:", opts: ["55 years and above", "60 years and above", "65 years and above", "70 years and above"], ans: "B" },
        { q: "RKSK focuses on health of:", opts: ["Infants", "Children under 5", "Adolescents 10-19 years", "Women of reproductive age"], ans: "C" },
        { q: "Social determinants of health include all EXCEPT:", opts: ["Education", "Employment", "Genetic factors", "Housing"], ans: "C" }
      ]
    }
  ]
},

// ══════════════════════════════════════════════════════
// UNIT 12: HOSPITAL INFECTION CONTROL & RECENT ADVANCES
// ══════════════════════════════════════════════════════
{
  unit: "UNIT XII: HOSPITAL INFECTION CONTROL & RECENT ADVANCES",
  topics: [
    {
      name: "Hospital Infections and Recent Topics",
      laq: [
        "Describe Hospital-Acquired Infections (HAI) - types, causative agents, risk factors, and control measures.",
        "Write about COVID-19 epidemiology, clinical features, prevention, and public health response including containment strategies."
      ],
      saq: [
        "What are nosocomial infections? Enumerate common types.",
        "Describe standard precautions for infection control.",
        "What is sterilization? Differentiate sterilization and disinfection.",
        "Write a note on biomedical waste management - categories and colour coding.",
        "Describe the epidemiology and control of Nipah virus infection.",
        "What is one-health concept?",
        "Write about Antimicrobial Resistance (AMR) - global burden and strategies.",
        "What is SARS-CoV-2? Describe modes of transmission.",
        "Write about telemedicine in public health.",
        "Describe the National Health Policy 2017."
      ],
      mcq: [
        { q: "Most common nosocomial infection is:", opts: ["Respiratory infection", "Urinary tract infection", "Wound infection", "Bacteremia"], ans: "B" },
        { q: "Biomedical waste (Red bag) contains:", opts: ["Sharps", "Anatomical waste", "Recyclable plastics", "General waste"], ans: "C" },
        { q: "Standard precautions apply to:", opts: ["Only blood", "All body fluids except sweat", "Only infected patients", "Only during surgery"], ans: "B" },
        { q: "COVID-19 is caused by:", opts: ["SARS-CoV-1", "MERS-CoV", "SARS-CoV-2", "Influenza A H1N1"], ans: "C" },
        { q: "Autoclave sterilization uses:", opts: ["Dry heat 160°C", "Moist heat 121°C at 15 psi", "UV radiation", "Ethylene oxide gas"], ans: "B" }
      ]
    }
  ]
}

];

// ─── DOCUMENT BUILD ──────────────────────────────────────────────────────────

const children = [];

// COVER PAGE
children.push(
  new Paragraph({ spacing: { before: 1200 }, children: [new TextRun("")] }),
  TITLE_PARA("THE TAMIL NADU DR. M.G.R. MEDICAL UNIVERSITY"),
  TITLE_PARA("CHENNAI - 600 032"),
  BLANK(1)[0],
  SUBTITLE_PARA("III M.B.B.S. (PART I) - FINAL YEAR"),
  SUBTITLE_PARA("COMMUNITY MEDICINE (PREVENTIVE & SOCIAL MEDICINE)"),
  BLANK(1)[0],
  new Paragraph({
    alignment: AlignmentType.CENTER,
    spacing: { after: 80 },
    children: [new TextRun({ text: "COMPREHENSIVE QUESTION BANK", bold: true, size: 28, font: "Times New Roman", color: "C0392B" })]
  }),
  new Paragraph({
    alignment: AlignmentType.CENTER,
    spacing: { after: 80 },
    children: [new TextRun({ text: "Long Answer Questions (LAQ) | Short Answer Questions (SAQ) | MCQs", size: 22, italics: true, font: "Times New Roman" })]
  }),
  BLANK(2)[0],
  new Paragraph({
    alignment: AlignmentType.CENTER,
    children: [new TextRun({ text: "EXAM PATTERN (CBME Batch 2019-2020 onwards)", bold: true, size: 20, font: "Times New Roman", color: "2E4057" })]
  }),
  BLANK(1)[0]
);

// Pattern Table
const patternTable = new Table({
  width: { size: 80, type: WidthType.PERCENTAGE },
  rows: [
    new TableRow({
      tableHeader: true,
      children: [
        new TableCell({ shading: { type: ShadingType.SOLID, color: "2E4057" }, children: [new Paragraph({ children: [new TextRun({ text: "Component", bold: true, color: "FFFFFF", font: "Times New Roman", size: 20 })] })] }),
        new TableCell({ shading: { type: ShadingType.SOLID, color: "2E4057" }, children: [new Paragraph({ children: [new TextRun({ text: "Duration", bold: true, color: "FFFFFF", font: "Times New Roman", size: 20 })] })] }),
        new TableCell({ shading: { type: ShadingType.SOLID, color: "2E4057" }, children: [new Paragraph({ children: [new TextRun({ text: "Marks", bold: true, color: "FFFFFF", font: "Times New Roman", size: 20 })] })] }),
      ]
    }),
    new TableRow({ children: [
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "Paper I Theory (Essay + Short Notes)", font: "Times New Roman", size: 20 })] })] }),
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "3 Hours", font: "Times New Roman", size: 20 })] })] }),
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "60 Marks", font: "Times New Roman", size: 20 })] })] }),
    ]}),
    new TableRow({ children: [
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "Paper I MCQs", font: "Times New Roman", size: 20 })] })] }),
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "30 Minutes", font: "Times New Roman", size: 20 })] })] }),
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "20 Marks (20x1)", font: "Times New Roman", size: 20 })] })] }),
    ]}),
    new TableRow({ children: [
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "Paper II Theory (Essay + Short Notes)", font: "Times New Roman", size: 20 })] })] }),
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "3 Hours", font: "Times New Roman", size: 20 })] })] }),
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "60 Marks", font: "Times New Roman", size: 20 })] })] }),
    ]}),
    new TableRow({ children: [
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "Paper II MCQs", font: "Times New Roman", size: 20 })] })] }),
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "30 Minutes", font: "Times New Roman", size: 20 })] })] }),
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "20 Marks (20x1)", font: "Times New Roman", size: 20 })] })] }),
    ]}),
    new TableRow({ children: [
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "Viva Voce", font: "Times New Roman", size: 20 })] })] }),
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "-", font: "Times New Roman", size: 20 })] })] }),
      new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "10 Marks", font: "Times New Roman", size: 20 })] })] }),
    ]}),
    new TableRow({ children: [
      new TableCell({ shading: { type: ShadingType.SOLID, color: "EAF2FF" }, children: [new Paragraph({ children: [new TextRun({ text: "Internal Assessment", bold: true, font: "Times New Roman", size: 20 })] })] }),
      new TableCell({ shading: { type: ShadingType.SOLID, color: "EAF2FF" }, children: [new Paragraph({ children: [new TextRun({ text: "-", font: "Times New Roman", size: 20 })] })] }),
      new TableCell({ shading: { type: ShadingType.SOLID, color: "EAF2FF" }, children: [new Paragraph({ children: [new TextRun({ text: "40 Marks", bold: true, font: "Times New Roman", size: 20 })] })] }),
    ]}),
  ]
});

children.push(patternTable);
children.push(...BLANK(1));
children.push(new Paragraph({
  alignment: AlignmentType.CENTER,
  children: [new TextRun({ text: "Pass: 50% in Theory + Viva = 65/130 | 35% in Internal Assessment | 50% in Practical", italics: true, size: 18, font: "Times New Roman", color: "C0392B" })]
}));
children.push(...BLANK(2));

// Notes
[
  "LAQ (Long Answer Questions) = Essay type, 10 Marks each",
  "SAQ (Short Answer Questions) = Short notes, 5 Marks each",
  "MCQs = 1 Mark each, 20 MCQs in 30 minutes",
  "Questions marked with * are frequently repeated in MGR University examinations",
  "Refer Park's Textbook of Preventive and Social Medicine (25th Edition) as the primary reference"
].forEach(n => children.push(NOTE(n)));

children.push(...BLANK(2));
children.push(DIVIDER());

// MAIN CONTENT
qbank.forEach(unit => {
  children.push(SECTION_HEADING(unit.unit));
  unit.topics.forEach(topic => {
    children.push(TOPIC_HEADING(topic.name));

    // LAQ
    children.push(QTYPE_LABEL("LONG ANSWER QUESTIONS (LAQ) - 10 Marks each"));
    topic.laq.forEach((q, i) => children.push(Q(i + 1, q, "10")));
    children.push(...BLANK(1));

    // SAQ
    children.push(QTYPE_LABEL("SHORT ANSWER QUESTIONS (SAQ) - 5 Marks each"));
    topic.saq.forEach((q, i) => children.push(Q(i + 1, q, "5")));
    children.push(...BLANK(1));

    // MCQ
    children.push(QTYPE_LABEL("MULTIPLE CHOICE QUESTIONS (MCQ) - 1 Mark each"));
    topic.mcq.forEach((m, i) => children.push(MCQ_Q(i + 1, m.q, m.opts, m.ans)));
    children.push(DIVIDER());
  });
});

// FOOTER note
children.push(new Paragraph({
  alignment: AlignmentType.CENTER,
  spacing: { before: 400 },
  children: [new TextRun({ text: "— Prepared for III MBBS Part I Community Medicine | MGR University Pattern —", italics: true, size: 18, font: "Times New Roman", color: "888888" })]
}));

// BUILD DOCUMENT
const doc = new Document({
  creator: "Orris AI",
  title: "Community Medicine Question Bank - MGR University",
  description: "Comprehensive question bank for III MBBS Part I Community Medicine - Tamil Nadu Dr. MGR Medical University",
  styles: {
    paragraphStyles: [
      {
        id: "Normal",
        name: "Normal",
        run: { font: "Times New Roman", size: 20 }
      }
    ]
  },
  sections: [{
    properties: {
      page: {
        margin: { top: 1080, right: 1080, bottom: 1080, left: 1080 }
      }
    },
    headers: {
      default: new Header({
        children: [new Paragraph({
          alignment: AlignmentType.CENTER,
          border: { bottom: { color: "2E4057", style: BorderStyle.SINGLE, size: 4, space: 4 } },
          children: [new TextRun({
            text: "Tamil Nadu Dr. M.G.R. Medical University | III MBBS Part I | Community Medicine Question Bank",
            size: 16, italics: true, color: "2E4057", font: "Times New Roman"
          })]
        })]
      })
    },
    footers: {
      default: new Footer({
        children: [new Paragraph({
          alignment: AlignmentType.CENTER,
          border: { top: { color: "2E4057", style: BorderStyle.SINGLE, size: 4, space: 4 } },
          children: [
            new TextRun({ text: "Page ", size: 16, font: "Times New Roman", color: "555555" }),
            new TextRun({ children: [PageNumber.CURRENT], size: 16, font: "Times New Roman", color: "555555" }),
            new TextRun({ text: " | Prepared by Orris AI", size: 16, font: "Times New Roman", color: "555555" })
          ]
        })]
      })
    },
    children
  }]
});

Packer.toBuffer(doc).then(buffer => {
  fs.writeFileSync("/home/daytona/workspace/community-medicine-qbank/Community_Medicine_QB_MGR_University.docx", buffer);
  console.log("SUCCESS: Document created at /home/daytona/workspace/community-medicine-qbank/Community_Medicine_QB_MGR_University.docx");
}).catch(err => {
  console.error("ERROR:", err.message);
  process.exit(1);
});

const {
  Document, Packer, Paragraph, TextRun, Table, TableRow, TableCell,
  AlignmentType, HeadingLevel, BorderStyle, WidthType, ShadingType,
  VerticalAlign, PageNumber, Header, Footer, UnderlineType, PageBreak
} = require('docx');
const fs = require('fs');

// ── colour palette ────────────────────────────────────────────────────────────
const C = {
  navy:    "1B2A4A",
  blue:    "1A5276",
  teal:    "117A65",
  red:     "C0392B",
  orange:  "D35400",
  purple:  "6C3483",
  green:   "1E8449",
  gold:    "B7950B",
  grey:    "555555",
  white:   "FFFFFF",
  lightBlue: "D6EAF8",
  lightGreen:"D5F5E3",
  lightRed:  "FADBD8",
  lightOrange:"FDEBD0",
  lightPurple:"E8DAEF",
  lightGrey: "F2F3F4",
  lightGold: "FEF9E7",
};

// ── typography helpers ────────────────────────────────────────────────────────
const font = "Times New Roman";

const tx = (text, opts={}) => new TextRun({ text, font, size: opts.size||20,
  bold: opts.bold||false, italics: opts.italic||false,
  color: opts.color||"000000", underline: opts.underline ? {type: UnderlineType.SINGLE} : undefined });

const para = (children, opts={}) => new Paragraph({
  alignment: opts.align || AlignmentType.LEFT,
  spacing: { before: opts.before||0, after: opts.after||80 },
  indent: opts.indent ? { left: opts.indent } : undefined,
  shading: opts.bg ? { type: ShadingType.SOLID, color: opts.bg } : undefined,
  border: opts.borderBottom ? { bottom: { color: C.navy, style: BorderStyle.SINGLE, size: 6, space: 4 }} : undefined,
  children: Array.isArray(children) ? children : [children]
});

const blank = () => para([tx("")], { after: 40 });

// Section banner
const banner = (text, bg=C.navy) => para(
  [tx(`  ${text}  `, { bold:true, size:24, color:C.white })],
  { align: AlignmentType.CENTER, bg, before:200, after:100 }
);

// Week header
const weekHeader = (text, bg) => para(
  [tx(text, { bold:true, size:22, color:C.white })],
  { bg, before:160, after:80 }
);

// Day header row for table
const dayHdrCell = (text, bg) => new TableCell({
  shading: { type: ShadingType.SOLID, color: bg },
  verticalAlign: VerticalAlign.CENTER,
  children: [para([tx(text, { bold:true, size:18, color:C.white })], { align:AlignmentType.CENTER, after:0 })]
});

const cell = (lines, bg="FFFFFF", size=18) => new TableCell({
  shading: { type: ShadingType.SOLID, color: bg },
  verticalAlign: VerticalAlign.TOP,
  children: lines.map((l,i) => para(
    [tx(l, { size, color: typeof l === "string" && l.startsWith("✦") ? C.blue : (l.startsWith("→") ? C.grey : "222222"), bold: l.startsWith("✦") })],
    { after: i===lines.length-1?0:40 }
  ))
});

// ── schedule data ─────────────────────────────────────────────────────────────
// Each week: { label, bg, days: [{date, day, morning, afternoon, evening, target}] }

const weeks = [
// ═══ WEEK 1 ═══
{ label: "WEEK 1  (Jul 1 – Jul 7)  |  PHASE 1: EPIDEMIOLOGY & BIOSTATISTICS", bg: C.blue,
  theme: "Paper I Foundation – Highest Yield Unit", themeBg: C.lightBlue,
  days: [
    { date:"Tue Jul 1",  day:"Day 1",
      morning:  ["✦ Epidemiology – Definitions","→ Read Park's Ch.1: Definition, uses, scope","→ Epidemiological triad (Agent-Host-Environment)","→ Spectrum of disease, iceberg phenomenon"],
      afternoon:["✦ Write & Memorise","→ Write 10-mark answer: 'Define Epidemiology & describe its uses'","→ Make a 1-page diagram of epidemiological triad","→ Note key definitions in your register"],
      evening:  ["✦ MCQ Practice","→ Do 15 MCQs on Epidemiology basics","→ Revise tomorrow's topic: Study designs"],
      target:   "Epidemiology foundations + 1 written answer" },

    { date:"Wed Jul 2",  day:"Day 2",
      morning:  ["✦ Observational Study Designs","→ Cross-sectional study – design, uses, limitations","→ Case-control study – OR, selection of controls","→ Cohort study – RR, AR, prospective vs retrospective"],
      afternoon:["✦ Write 15-mark LAQ","→ 'Describe observational study designs with merits & demerits'","→ Draw comparison table: cross-sectional vs case-control vs cohort","→ Park's Ch.2 – re-read study design section"],
      evening:  ["✦ MCQs + Flashcards","→ 20 MCQs on study designs","→ Flashcard: OR formula, RR formula, AR formula"],
      target:   "All 3 observational designs + 1 full LAQ written" },

    { date:"Thu Jul 3",  day:"Day 3",
      morning:  ["✦ Experimental Studies + Screening","→ RCT – design, randomisation, blinding, ethical issues","→ Screening – Wilson & Jungner criteria","→ Sensitivity, Specificity – 2×2 table, PPV, NPV"],
      afternoon:["✦ Write 10-mark answer","→ 'Describe RCT – design, advantages & limitations'","→ Construct 2×2 table with worked example","→ Revise: sensitivity = TP/(TP+FN)"],
      evening:  ["✦ MCQs","→ 20 MCQs: RCTs, screening, sensitivity, specificity","→ Note all formulas on one page"],
      target:   "RCT + Screening fully covered; all formulas memorised" },

    { date:"Fri Jul 4",  day:"Day 4",
      morning:  ["✦ Measures of Disease Frequency","→ Incidence rate, prevalence, relationship P=I×D","→ Attack rate, secondary attack rate","→ Mortality rates: CMR, IMR, MMR, NMR, U5MR"],
      afternoon:["✦ Write + Numericals","→ 10-mark: 'Describe measures of morbidity and mortality'","→ Solve 5 numerical problems on rate calculations","→ Make a table of all rate formulas with denominators"],
      evening:  ["✦ MCQs + Revision","→ 20 MCQs on rates and measures","→ Revise Day 1–3 flashcards (30 min)"],
      target:   "All epidemiological measures memorised with formulas" },

    { date:"Sat Jul 5",  day:"Day 5",
      morning:  ["✦ Biostatistics – Part 1","→ Types of data (nominal, ordinal, continuous, discrete)","→ Measures of central tendency: Mean, Median, Mode","→ Measures of dispersion: Range, SD, variance, CV"],
      afternoon:["✦ Write 10-mark answer","→ 'Describe measures of central tendency & dispersion'","→ Work through 3 numerical examples with SD calculation","→ Normal distribution – 68-95-99.7 rule, Z-score"],
      evening:  ["✦ MCQs","→ 20 MCQs on biostatistics Part 1","→ Revise: when to use mean vs median"],
      target:   "Central tendency + dispersion fully covered" },

    { date:"Sun Jul 6",  day:"Day 6",
      morning:  ["✦ Biostatistics – Part 2","→ Tests of significance: t-test, chi-square, ANOVA","→ p-value, Type I error (α), Type II error (β)","→ Confidence interval – definition and interpretation","→ Sampling methods: simple random, stratified, cluster"],
      afternoon:["✦ Write 10-mark answer","→ 'Describe tests of significance in medical research'","→ Make a flowchart: which test to use for which data","→ Null hypothesis, alternative hypothesis – examples"],
      evening:  ["✦ MCQs + Combined Revision","→ 20 MCQs on statistical tests","→ Revise all Week 1 written answers (1 hour)"],
      target:   "Statistical tests + sampling + error types covered" },

    { date:"Mon Jul 7",  day:"Day 7 – WEEK 1 REVIEW",
      morning:  ["✦ Consolidation Day","→ Re-read all Week 1 written answers","→ Identify weak areas from MCQ errors","→ Re-write any answer that felt incomplete"],
      afternoon:["✦ Mock Mini-Test","→ Attempt: 1 LAQ (15 min) + 2 short essays (12 min each) + 3 SAQs (7 min each) from Week 1 topics","→ Self-assess: content coverage + time management"],
      evening:  ["✦ Preparation","→ 20 MCQs mixed from Week 1","→ Preview Week 2 topics (TB, Malaria, communicable diseases)"],
      target:   "Full revision of Epidemiology + Biostatistics" },
  ]
},

// ═══ WEEK 2 ═══
{ label: "WEEK 2  (Jul 8 – Jul 14)  |  COMMUNICABLE DISEASES – Part 1", bg: C.teal,
  theme: "TB, Malaria, Dengue, Cholera, Immunization – All Paper I essentials", themeBg: C.lightGreen,
  days: [
    { date:"Tue Jul 8",  day:"Day 8",
      morning:  ["✦ Tuberculosis – Epidemiology","→ Agent (M. tuberculosis), host factors, reservoir","→ Mode of transmission, incubation period","→ Types: primary, post-primary, miliary","→ Tuberculin test (Mantoux) – technique, reading, interpretation"],
      afternoon:["✦ TB – Diagnosis & Control","→ Sputum smear microscopy (ZN stain), culture, CBNAAT","→ RNTCP/NTP – history, DOTS, drug regimens (Category I, II)","→ Write 15-mark LAQ: 'Epidemiology and control of TB in India'"],
      evening:  ["✦ MCQs","→ 20 MCQs on TB: drug regimens, DOTS, Mantoux interpretation","→ Note: 4-drug HRZE (intensive), 2-drug HR (continuation)"],
      target:   "TB fully covered – epidemiology + RNTCP + DOTS + 1 LAQ written" },

    { date:"Wed Jul 9",  day:"Day 9",
      morning:  ["✦ Malaria","→ Parasite: P. falciparum (cerebral malaria), P. vivax (relapse)","→ Vector: Anopheles female mosquito, Anopheles stephensi (urban)","→ Life cycle in man and mosquito","→ Clinical features, complications, diagnosis (RDT, smear)"],
      afternoon:["✦ Malaria Control","→ NVBDCP – objectives, strategies","→ Treatment: Chloroquine (P. vivax), ACT (P. falciparum)","→ Vector control: DDT spraying, bed nets (LLIN), larval control","→ Write 10-mark: 'Epidemiology and control of Malaria'"],
      evening:  ["✦ MCQs","→ 20 MCQs on malaria","→ Draw and memorise: Anopheles vs Culex breeding habits"],
      target:   "Malaria + NVBDCP covered + 1 answer written" },

    { date:"Thu Jul 10", day:"Day 10",
      morning:  ["✦ Dengue + Chikungunya","→ Dengue: flavivirus, 4 serotypes, Aedes aegypti vector","→ Dengue Haemorrhagic Fever – NS1 antigen, IgM/IgG","→ Management + WHO warning signs (Dengue Severe)","→ Chikungunya – alphavirus, same vector, joint pain"],
      afternoon:["✦ Cholera + Typhoid","→ Cholera: V. cholerae, El Tor biotype, 'rice-water' stools","→ Epidemiology, ORS formula, WASH, control","→ Typhoid: Salmonella typhi, Widal test (interpretation)","→ Write 10-mark: 'Epidemiology and control of Cholera'"],
      evening:  ["✦ MCQs + Flashcards","→ 20 MCQs on vector-borne and enteric diseases","→ Flashcard: Dengue – Aedes, Malaria – Anopheles, Filaria – Culex, Plague – rat flea"],
      target:   "Dengue, Chikungunya, Cholera, Typhoid covered" },

    { date:"Fri Jul 11", day:"Day 11",
      morning:  ["✦ HIV/AIDS","→ HIV-1 vs HIV-2, modes of transmission, window period","→ CD4 count, WHO staging (I–IV)","→ NACP – phases I to IV, PPTCT, ICTC, ART","→ Prevention: ABC (Abstinence, Be faithful, Condom use)"],
      afternoon:["✦ Rabies + Leprosy","→ Rabies: rhabdovirus, Negri bodies, Furious vs Dumb rabies","→ Pre- and post-exposure prophylaxis, intradermal regimen","→ Leprosy: M. leprae, Ridley-Jopling classification","→ Write 10-mark: 'Epidemiology and control of HIV/AIDS'"],
      evening:  ["✦ MCQs","→ 20 MCQs on HIV, Rabies, Leprosy","→ Note: Incubation period of rabies = 10 days to 7 years"],
      target:   "HIV/AIDS + NACP + Rabies + Leprosy covered" },

    { date:"Sat Jul 12", day:"Day 12",
      morning:  ["✦ Immunization – UIP Schedule","→ Vaccines at birth: BCG, OPV-0, Hepatitis B","→ 6 weeks, 10 weeks, 14 weeks: Pentavalent, PCV, OPV, fIPV, Rotavirus","→ 9 months: MR vaccine; 16-24 months: DPT booster","→ Cold chain: temperature requirements for each vaccine"],
      afternoon:["✦ Vaccine Types + Cold Chain","→ Live attenuated: BCG, OPV, MMR, Varicella","→ Killed/inactivated: Hepatitis B, IPV, Influenza","→ Toxoids: DT, TT; Subunit: Hep B, HPV","→ Cold chain: walk-in cold room → ILR → deep freezer → vaccine carrier → ice pack","→ Write 10-mark: 'Cold chain in immunization – describe with diagram'"],
      evening:  ["✦ MCQs","→ 20 MCQs on UIP schedule, cold chain, vaccine types","→ Critical temperatures: OPV = -15 to -25°C, others = +2 to +8°C"],
      target:   "Full UIP schedule memorised + cold chain + vaccine types" },

    { date:"Sun Jul 13", day:"Day 13",
      morning:  ["✦ Communicable Disease Control – Concepts","→ Epidemic, endemic, pandemic, sporadic – definitions","→ Point source vs propagated epidemic curves","→ Herd immunity – definition, threshold for major diseases","→ Disease surveillance: active, passive, sentinel","→ IDSP – components, P, L, U forms"],
      afternoon:["✦ Write SAQs (Timed Practice)","→ SAQ 1: 'Herd immunity' (7 min)","→ SAQ 2: 'IDSP – objectives and components' (7 min)","→ SAQ 3: 'Secondary attack rate – definition and uses' (7 min)","→ SAQ 4: 'Types of epidemic curves' (7 min)"],
      evening:  ["✦ MCQs + Revision","→ 20 MCQs on epidemic terminology, herd immunity","→ Revise Day 8–12 written answers"],
      target:   "Epidemic concepts + surveillance + 4 SAQs written" },

    { date:"Mon Jul 14", day:"Day 14 – WEEK 2 REVIEW",
      morning:  ["✦ Consolidation Day","→ Re-read TB LAQ and HIV short essay","→ Practice drawing Anopheles life cycle from memory","→ Revise vaccine schedule – reproduce from memory"],
      afternoon:["✦ Mock Mini-Test","→ Attempt: 1 LAQ on communicable disease (15 min)","→ 2 short essays (Malaria, Cholera – 12 min each)","→ 3 SAQs (Herd immunity, Cold chain, DOTS – 7 min each)"],
      evening:  ["✦ Preview + MCQs","→ 20 mixed MCQs Week 1+2","→ Preview: Water, Air, Environment (Week 3)"],
      target:   "Full communicable disease revision" },
  ]
},

// ═══ WEEK 3 ═══
{ label: "WEEK 3  (Jul 15 – Jul 21)  |  ENVIRONMENT, NUTRITION & CONCEPTS OF HEALTH", bg: C.orange,
  theme: "Environmental Health, Nutrition, Health concepts – Paper I completion", themeBg: C.lightOrange,
  days: [
    { date:"Tue Jul 15", day:"Day 15",
      morning:  ["✦ Water Supply & Purification","→ Sources of water: surface (river, lake) vs groundwater","→ Requisites for safe drinking water (WHO standards)","→ Sedimentation, coagulation, filtration (slow sand/rapid sand)","→ Chlorination – chlorine demand, breakpoint chlorination"],
      afternoon:["✦ Water – Quality Indicators","→ Free residual chlorine: 0.2 mg/L at consumer end","→ Fluoride: 0.5–1.5 mg/L permissible; fluorosis at >1.5","→ Bacteriological exam: MPN, coliform count","→ Write 15-mark LAQ: 'Describe methods of water purification at community level'"],
      evening:  ["✦ MCQs","→ 20 MCQs on water supply and purification","→ Memorise: BOD = organic pollution; COD = total chemical pollution"],
      target:   "Water purification + chlorination fully covered + 1 LAQ" },

    { date:"Wed Jul 16", day:"Day 16",
      morning:  ["✦ Excreta & Sewage Disposal","→ Sanitary latrine – pit latrine, pour-flush, septic tank","→ Sewage treatment: primary (sedimentation), secondary (biological), tertiary","→ Sewage disposal standards: BOD <20 mg/L, SS <30 mg/L"],
      afternoon:["✦ Solid Waste & Air Pollution","→ Municipal solid waste – collection, segregation, disposal methods","→ Air pollutants: SPM, SO2, CO, lead, ozone","→ Indoor air pollution: biomass fuel, tobacco smoke, radon","→ Write 10-mark: 'Sources, effects and control of air pollution'"],
      evening:  ["✦ MCQs + SAQ Practice","→ 20 MCQs: environmental health","→ SAQ: 'Sanitary latrine – construction and features' (7 min)"],
      target:   "Excreta disposal + solid waste + air pollution covered" },

    { date:"Thu Jul 17", day:"Day 17",
      morning:  ["✦ Occupational Health","→ Silicosis: free SiO2, nodular fibrosis, PMF, stone/glass cutters","→ Asbestosis: mesothelioma risk, asbestos bodies","→ Byssinosis: cotton dust, Monday fever","→ Lead poisoning (Plumbism): Burton's line, basophilic stippling"],
      afternoon:["✦ Occupational Health – Control","→ TLV (Threshold Limit Value) – definition and use","→ Pre-employment and periodic health examinations","→ Personal protective equipment, engineering controls","→ Write 10-mark: 'Pneumoconiosis – types, features and prevention'"],
      evening:  ["✦ MCQs","→ 20 MCQs on occupational diseases","→ Memorise: Minamata = Mercury; Itai-Itai = Cadmium; Plumbism = Lead"],
      target:   "All major occupational diseases + 1 written answer" },

    { date:"Fri Jul 18", day:"Day 18",
      morning:  ["✦ Concepts of Health & Disease","→ WHO definition of health (1948) – dimensions","→ Determinants of health: biological, behavioural, socioeconomic, env","→ Spectrum of disease, natural history of disease","→ Levels of prevention: Primordial, Primary, Secondary, Tertiary + examples"],
      afternoon:["✦ Disease Causation","→ Germ theory, web of causation, epidemiological triad","→ PQLI (Morris), HDI, DALY, HALE","→ Concept of risk factors","→ Write 10-mark: 'Natural history of disease and levels of prevention (with diagram)'"],
      evening:  ["✦ MCQs + SAQs","→ 20 MCQs on health concepts","→ SAQ: 'DALY – definition and components' (7 min)","→ SAQ: 'PQLI – components and significance' (7 min)"],
      target:   "Concepts of health + disease causation + levels of prevention" },

    { date:"Sat Jul 19", day:"Day 19",
      morning:  ["✦ Nutrition – Normal & Assessment","→ Balanced diet, RDA (ICMR recommendations)","→ Energy: 2400 kcal (sedentary man), 1900 kcal (sedentary woman)","→ Protein: 0.83 g/kg/day (adult)","→ Nutritional assessment methods: anthropometry, biochemical, clinical, dietary"],
      afternoon:["✦ PEM – Kwashiorkor & Marasmus","→ Kwashiorkor: protein deficiency, oedema, flaky paint dermatosis, moon face","→ Marasmus: calorie deficiency, severe wasting, old man face","→ Gomez classification (wt for age), Wellcome classification","→ Write 15-mark LAQ: 'PEM – clinical features, classification and prevention'"],
      evening:  ["✦ MCQs","→ 20 MCQs on nutrition and PEM","→ Comparison table: Kwashiorkor vs Marasmus in your register"],
      target:   "PEM fully covered; Kwashiorkor vs Marasmus comparison memorised" },

    { date:"Sun Jul 20", day:"Day 20",
      morning:  ["✦ Micronutrient Deficiencies","→ Vitamin A: night blindness, Bitot's spots, keratomalacia; Xerophthalmia grading","→ Iron deficiency anaemia: pallor, koilonychia; IDA control programme","→ Iodine deficiency: goitre, cretinism; IDD control programme (iodized salt)","→ Vitamin D: rickets (children), osteomalacia (adults)","→ Pellagra (niacin): 3Ds – Dermatitis, Diarrhoea, Dementia"],
      afternoon:["✦ Nutrition Programmes in India","→ ICDS: beneficiaries, services (6 services), Anganwadi","→ National Nutritional Anaemia Control Programme","→ National Vitamin A Supplementation Programme","→ Mid-Day Meal Scheme (PM Poshan)","→ Write 10-mark: 'Vitamin A deficiency – epidemiology, clinical features and national programme'"],
      evening:  ["✦ MCQs + SAQs","→ 20 MCQs on micronutrients and nutrition programmes","→ SAQ: 'ICDS – objectives and services' (7 min)"],
      target:   "All micronutrient deficiencies + national nutrition programmes" },

    { date:"Mon Jul 21", day:"Day 21 – WEEK 3 REVIEW",
      morning:  ["✦ Consolidation","→ Redraw water purification flow chart from memory","→ Re-write Kwashiorkor vs Marasmus table","→ Revise occupational disease list + agents"],
      afternoon:["✦ Mock Mini-Test (Paper I simulation)","→ 1 LAQ: Water purification (15 min)","→ 2 Short essays: Air pollution + PEM (12 min each)","→ 3 SAQs: Silicosis, Levels of prevention, ICDS (7 min each)"],
      evening:  ["✦ MCQs + Preview","→ 25 mixed MCQs Weeks 1–3","→ Preview Week 4: Demography + Family welfare"],
      target:   "Paper I topics largely complete" },
  ]
},

// ═══ WEEK 4 ═══
{ label: "WEEK 4  (Jul 22 – Jul 28)  |  DEMOGRAPHY, FAMILY WELFARE & HEALTH CARE DELIVERY", bg: C.purple,
  theme: "Paper II Foundation – Demography, MCH, National Programmes", themeBg: C.lightPurple,
  days: [
    { date:"Tue Jul 22", day:"Day 22",
      morning:  ["✦ Demography – Basic Concepts","→ Definition, scope, uses of demography","→ Sources of demographic data: census, CRS, NFHS, SRS","→ Census in India: decennial, 2011 data (population 1.21 billion)","→ Population pyramid: types (expansive, constrictive, stationary)"],
      afternoon:["✦ Vital Statistics Rates","→ CBR, CDR, NIR, GFR, TFR, NRR","→ IMR (components: neonatal, post-neonatal), MMR, U5MR","→ Current India figures: IMR ~26, MMR ~97, TFR 2.0","→ Write 15-mark LAQ: 'Vital statistics – definition, sources and computation of rates'"],
      evening:  ["✦ MCQs + Flashcards","→ 20 MCQs on demography and vital statistics","→ Flashcard: all rate formulas and current India values"],
      target:   "All demographic rates + India figures memorised + 1 LAQ" },

    { date:"Wed Jul 23", day:"Day 23",
      morning:  ["✦ Demographic Transition","→ Warren Thompson's theory – 4 stages","→ Stage 1: High birth + high death (pre-industrial)","→ Stage 2: High birth + falling death (early industrial)","→ Stage 3: Falling birth + low death","→ Stage 4: Low birth + low death (post-industrial)","→ India's current stage: transitioning Stage 2→3"],
      afternoon:["✦ Population Policy","→ National Population Policy 2000 – immediate, short-term, long-term goals","→ Mission Parivar Vikas – 145 high-fertility districts","→ Registration of Births and Deaths Act 1969","→ Write 10-mark: 'Demographic transition theory – stages and India's position'"],
      evening:  ["✦ MCQs + SAQ","→ 20 MCQs on demographic transition","→ SAQ: 'National Population Policy 2000 – objectives' (7 min)"],
      target:   "Demographic transition + NPP 2000 covered" },

    { date:"Thu Jul 24", day:"Day 24",
      morning:  ["✦ Family Welfare – Contraception","→ Temporary methods: OCP (mechanism, types), IUCD (copper-T 380A)","→ Barrier methods: male/female condom, diaphragm","→ Emergency contraception: levonorgestrel 1.5 mg within 72 h","→ Permanent: vasectomy (no-scalpel), tubectomy (Pomeroy, Filshie clip)"],
      afternoon:["✦ Family Welfare Programme","→ History: National Family Planning Programme 1952","→ Cafe-au-lait approach, target-free approach","→ Current Mission Parivar Vikas","→ Write 10-mark: 'Methods of family planning – temporary and permanent methods'"],
      evening:  ["✦ MCQs","→ 20 MCQs on contraception and family planning","→ Note: Copper-T works up to 10 years; IUD failure rate <1%"],
      target:   "All contraceptive methods + family welfare programme covered" },

    { date:"Fri Jul 25", day:"Day 25",
      morning:  ["✦ Health Care Delivery System","→ Levels: Primary, Secondary, Tertiary","→ Sub-centre: 5000 plains/3000 hilly, 1 ANM + 1 MPW","→ PHC: 30,000 plains/20,000 hilly, 1 MO + 14 paramedical staff","→ CHC: 80,000-1,20,000, 4 specialists, 30 beds, referral centre","→ District Hospital + Medical College Hospital"],
      afternoon:["✦ NHM + ASHA","→ NRHM (2005) → NHM (2013): NRHM + NUHM","→ ASHA: selection, training, incentives, role","→ Anganwadi: ICDS services","→ IPHS norms","→ Write 15-mark LAQ: 'Health care delivery system in India – levels, structure and functions'"],
      evening:  ["✦ MCQs","→ 20 MCQs on health care delivery, NHM, ASHA","→ Memorise: Sub-centre → PHC → CHC → District Hospital → Medical College"],
      target:   "Health care delivery + NHM + ASHA fully covered + 1 LAQ" },

    { date:"Sat Jul 26", day:"Day 26",
      morning:  ["✦ National Health Programmes","→ RMNCH+A strategy – components","→ Janani Suraksha Yojana (JSY) – BPL women, institutional delivery cash incentive","→ Janani Shishu Suraksha Karyakram (JSSK) – free delivery","→ Pradhan Mantri Matru Vandana Yojana (PMMVY) – Rs 5000","→ Ayushman Bharat – PM-JAY (Rs 5 lakh/family), HWC"],
      afternoon:["✦ SDGs + National Health Policy","→ SDG 3 – Good health and wellbeing; 17 goals overview","→ National Health Policy 2017 – key goals","→ NVBDCP, NLEP, NPCDCS – brief overview","→ Write 10-mark: 'National Health Mission – components and key interventions'"],
      evening:  ["✦ MCQs + SAQs","→ 20 MCQs on national programmes","→ SAQ: 'Janani Suraksha Yojana – objectives and benefits' (7 min)"],
      target:   "All major national health programmes covered" },

    { date:"Sun Jul 27", day:"Day 27",
      morning:  ["✦ MCH Services","→ Antenatal care: minimum 8 ANC visits (WHO 2016), 4T's (tetanus, tablets, tests, timing)","→ Danger signs in pregnancy, pre-eclampsia: BP ≥140/90 + proteinuria","→ Intranatal: clean delivery, partograph","→ Postnatal: 6 visits, breast feeding, family planning"],
      afternoon:["✦ Child Health + IMNCI","→ IMNCI – 2 months to 5 years; assess, classify, treat","→ IMNCI danger signs: unable to drink, convulsions, lethargic","→ Newborn care: Kangaroo Mother Care, essential newborn care","→ Growth monitoring: Road-to-Health card, Z-scores","→ Write 10-mark: 'MCH services – antenatal care with components'"],
      evening:  ["✦ MCQs","→ 20 MCQs on MCH, IMNCI, ANC","→ SAQ: 'IMNCI – components and danger signs' (7 min)"],
      target:   "MCH services + IMNCI + ANC fully covered" },

    { date:"Mon Jul 28", day:"Day 28 – WEEK 4 REVIEW",
      morning:  ["✦ Consolidation – Paper II topics","→ Re-write demographic transition diagram from memory","→ Reproduce health care delivery system diagram","→ Revise all national programme names, years of launch"],
      afternoon:["✦ Mock Mini-Test (Paper II focus)","→ 1 LAQ: Vital statistics OR health care delivery (15 min)","→ 2 Short essays: Demographic transition + NHM (12 min each)","→ 3 SAQs: ASHA, JSY, ANC (7 min each)"],
      evening:  ["✦ MCQs + Preview","→ 25 mixed MCQs Paper II topics","→ Preview Week 5: NCDs + Mental health + remaining units"],
      target:   "Paper II foundation complete" },
  ]
},

// ═══ WEEK 5 ═══
{ label: "WEEK 5  (Jul 29 – Aug 4)  |  NCDs, HEALTH EDUCATION, SOCIAL MEDICINE + FULL REVISION", bg: C.red,
  theme: "Complete remaining units + Begin intensive revision", themeBg: C.lightRed,
  days: [
    { date:"Tue Jul 29", day:"Day 29",
      morning:  ["✦ Non-Communicable Diseases","→ CHD: risk factors (Framingham – age, sex, BP, cholesterol, smoking, DM)","→ Metabolic syndrome (IDF criteria): central obesity + 2 of 4","→ Prevention: primordial, primary, secondary (statins, aspirin)","→ Cancer: warning signs (CAUTION), causative factors, NPCDCS"],
      afternoon:["✦ Diabetes + Hypertension","→ DM: diagnosis (FPG ≥126, 2hPG ≥200, HbA1c ≥6.5%)","→ Hypertension: JNC 8 vs WHO criteria (≥140/90)","→ NPCDCS – screening at HWC, referral pathway","→ Write 10-mark: 'Epidemiology and prevention of coronary heart disease'"],
      evening:  ["✦ MCQs + SAQs","→ 20 MCQs on NCDs","→ SAQ: 'Metabolic syndrome – definition and components' (7 min)"],
      target:   "NCDs – CHD, cancer, DM, hypertension covered" },

    { date:"Wed Jul 30", day:"Day 30",
      morning:  ["✦ Mental Health + Geriatrics","→ NMHP (1982) – objectives, district mental health programme (DMHP)","→ Common mental disorders in India: depression, anxiety, schizophrenia","→ NPHCE – health problems of elderly, services","→ Elderly defined as ≥60 years in India; 'old-old' ≥80 years"],
      afternoon:["✦ Rehabilitation + Social Issues","→ Rehabilitation: medical, vocational, social, psychological","→ Community-based rehabilitation (CBR) – ILO/UNESCO/WHO joint policy","→ Domestic violence: types, PCPNDT Act, PNDT","→ Write 10-mark: 'National Mental Health Programme – objectives and components'"],
      evening:  ["✦ MCQs + SAQs","→ 20 MCQs on mental health and geriatrics","→ SAQ: 'Community-based rehabilitation – principles' (7 min)"],
      target:   "NMHP + NPHCE + CBR + social issues covered" },

    { date:"Thu Jul 31", day:"Day 31",
      morning:  ["✦ Health Education","→ Principles of health education (10 principles)","→ Methods: individual (counselling, home visit), group (lecture, panel discussion)","→ Mass media: radio, TV, social media, posters","→ KAP (Knowledge, Attitude, Practice) survey"],
      afternoon:["✦ Communication Models + IEC","→ Health Belief Model (Rosenstock) – 4 components","→ Transtheoretical model (Stages of change)","→ IEC vs BCC: difference and uses","→ Write 10-mark: 'Methods of health education with merits and demerits'"],
      evening:  ["✦ MCQs + SAQs","→ 20 MCQs on health education","→ SAQ: 'Health Belief Model – components' (7 min)","→ SAQ: 'KAP survey – definition and uses' (7 min)"],
      target:   "Health education + IEC/BCC + communication models covered" },

    { date:"Fri Aug 1",  day:"Day 32",
      morning:  ["✦ Hospital Infection Control","→ HAI / Nosocomial infections: UTI (commonest), SSI, pneumonia, BSI","→ Standard precautions: hand hygiene (5 moments), PPE","→ BMW management: colour coding (Red/Yellow/Blue/Black/White)","→ Sterilization vs disinfection; Autoclave: 121°C, 15 psi, 15 min"],
      afternoon:["✦ Recent Advances","→ COVID-19: SARS-CoV-2, modes of spread, containment strategy","→ Antimicrobial resistance (AMR): ICMR action plan","→ One Health concept: human-animal-environmental interface","→ Telemedicine: Telemedicine Practice Guidelines 2020"],
      evening:  ["✦ MCQs + SAQs","→ 20 MCQs on hospital infection control","→ SAQ: 'Biomedical waste management – categories and colour coding' (7 min)"],
      target:   "Hospital infections + BMW + recent advances covered" },

    { date:"Sat Aug 2",  day:"Day 33 – REVISION DAY 1",
      morning:  ["✦ Paper I Full Revision","→ Epidemiology: re-read all study designs; reproduce 2×2 table","→ Biostatistics: redo all formulas from memory","→ Re-check: which test for which data type"],
      afternoon:["✦ Paper I – Communicable Diseases Revision","→ Revise TB drug regimens, DOTS","→ UIP schedule – reproduce from memory","→ Re-write answer: 'Epidemiology and control of malaria'"],
      evening:  ["✦ MCQ Blast","→ 30 mixed MCQs from all Paper I topics","→ Mark wrong answers; re-read those sections"],
      target:   "Paper I 50% revised" },

    { date:"Sun Aug 3",  day:"Day 34 – REVISION DAY 2",
      morning:  ["✦ Paper I – Environment + Nutrition Revision","→ Water purification: reproduce flow diagram","→ Occupational diseases: list agents for each disease","→ PEM: reproduce Gomez + Wellcome classification tables"],
      afternoon:["✦ Paper II – Demography Revision","→ All rate formulas + current India figures","→ Demographic transition diagram from memory","→ Re-write: 'Vital statistics' 15-mark answer (timed)"],
      evening:  ["✦ MCQ Blast","→ 30 MCQs from Paper II topics","→ Focus on national programme years and statistics"],
      target:   "Paper II demography + nutrition revision complete" },

    { date:"Mon Aug 4",  day:"Day 35 – REVISION DAY 3",
      morning:  ["✦ Paper II – Health System + MCH Revision","→ Health care delivery diagram","→ NHM components + ASHA role","→ ANC components: reproduce from memory"],
      afternoon:["✦ Full Mock Test – Paper I","→ Attempt full Paper I: 2 LAQ + 4 short essays + 6 SAQs","→ Strict time: 3 hours","→ Self-assess for content + timing"],
      evening:  ["✦ Self-Assessment","→ Mark your mock paper against key points","→ List topics where marks were lost","→ These become priority for Week 6"],
      target:   "First full mock paper completed + weak areas identified" },
  ]
},

// ═══ WEEK 6 ═══
{ label: "WEEK 6  (Aug 5 – Aug 11)  |  FINAL SPRINT – MOCK TESTS + LAST-MINUTE REVISION", bg: C.gold,
  theme: "Intensive mock tests, MCQ drills, short notes consolidation – Final 7 days", themeBg: C.lightGold,
  days: [
    { date:"Tue Aug 5",  day:"Day 36",
      morning:  ["✦ Weak Area Revision (from mock test)","→ Re-read all topics where you lost marks","→ Rewrite those answers with correct content","→ Focus especially on any LAQ topic missed"],
      afternoon:["✦ Full Mock Test – Paper II","→ Attempt full Paper II: 2 LAQ + 4 short essays + 6 SAQs","→ Strict 3 hours","→ Self-assess immediately after"],
      evening:  ["✦ MCQ Practice","→ 30 MCQs – focus on numbers, doses, schedules","→ Note all wrong answers for tomorrow review"],
      target:   "Paper II mock completed + weak areas identified" },

    { date:"Wed Aug 6",  day:"Day 37",
      morning:  ["✦ National Programmes – Rapid Revision","→ Make a master table: Programme | Year of launch | Target | Key feature","→ RNTCP, NVBDCP, NACP, UIP, NPCDCS, NHM, NPHCE, NMHP, RKSK"],
      afternoon:["✦ Write All SAQs Rapidly","→ Write 8 SAQ answers in 1 hour (7 min each)","→ Topics: ASHA, JSY, Cold chain, ICDS, DOTS, Silicosis, PQLI, Herd immunity","→ These are the fastest marks available"],
      evening:  ["✦ MCQ Drill","→ 30 MCQs – focus on disease vectors, vaccine temperatures, drug of choice","→ Review national programme statistics"],
      target:   "Master table of all national programmes + 8 SAQs written" },

    { date:"Thu Aug 7",  day:"Day 38",
      morning:  ["✦ Epidemiology + Biostatistics – Final Revision","→ Write ALL formulas: RR, OR, AR, PAR, sensitivity, specificity, PPV, NPV","→ Reproduce: Normal distribution curve with 1-2-3 SD marks","→ Which test: t-test (means), chi-square (proportions), ANOVA (3+ groups)"],
      afternoon:["✦ High-Yield LAQ Practice","→ Write 2 LAQs without notes (timed):","→ LAQ 1: 'Cohort study – design, merits, demerits' (15 min)","→ LAQ 2: 'PEM – types, classification, prevention' (15 min)"],
      evening:  ["✦ MCQs + Flashcard Review","→ 30 MCQs: epidemiology + biostatistics","→ Go through all flashcards created over 6 weeks"],
      target:   "All formulas memorised; LAQ writing speed at target" },

    { date:"Fri Aug 8",  day:"Day 39",
      morning:  ["✦ Short Notes Compilation","→ Read through all SAQ answers written over 6 weeks","→ For each: check – definition ✓, 4-5 points ✓, diagram ✓","→ Add any missing diagram to each answer"],
      afternoon:["✦ Numbers + Data Sheet","→ Compile one A4 page: all important numbers (IMR, MMR, TFR, fluoride limit, chlorine residual, PHC norm, etc.)","→ Memorise this sheet completely","→ Include: current India health statistics 2023-24"],
      evening:  ["✦ MCQs","→ 30 MCQs – purely on numbers and statistics","→ Revise biomedical waste colour coding one final time"],
      target:   "One-page numbers sheet memorised" },

    { date:"Sat Aug 9",  day:"Day 40",
      morning:  ["✦ Paper I – Last Complete Revision","→ Go through all Paper I topics in your written register","→ Re-read: Epidemiology → Biostatistics → Communicable diseases → Environment → Nutrition → Health concepts","→ Do not read new topics"],
      afternoon:["✦ Final Paper I MCQ Drill","→ 40 MCQs on Paper I topics (20 min, strict timing)","→ Review all wrong answers","→ Memorise: TB drug regimens, Malaria treatment protocol, vaccine types"],
      evening:  ["✦ Light Reading Only","→ Read short notes register","→ No new topics; consolidate only","→ Sleep by 10 PM"],
      target:   "Paper I fully revised and MCQs drilled" },

    { date:"Sun Aug 10", day:"Day 41",
      morning:  ["✦ Paper II – Last Complete Revision","→ Demography → Family welfare → Health care delivery → MCH → NCDs → Health education → Social medicine","→ Reproduce: health care delivery system diagram from memory","→ Revise national programme table"],
      afternoon:["✦ Final Paper II MCQ Drill","→ 40 MCQs on Paper II topics (20 min, strict timing)","→ Review wrong answers","→ Memorise current India data: IMR 26, MMR 97, TFR 2.0"],
      evening:  ["✦ Final Preparation","→ Read your one-page numbers sheet one last time","→ Lay out stationery for exam day","→ Sleep by 10 PM – absolutely no late night study"],
      target:   "Paper II fully revised; fully prepared for exam" },

    { date:"Mon Aug 11", day:"Day 42 – DAY BEFORE EXAM",
      morning:  ["✦ Very Light Revision Only","→ Read your short notes register – 1 hour maximum","→ Glance at national programmes master table","→ Revise answer-writing format: LAQ structure, SAQ format"],
      afternoon:["✦ Rest","→ No new topics","→ Eat well; hydrate","→ Light walk or relaxation activity"],
      evening:  ["✦ Final Check","→ Read only your one-page numbers sheet","→ Set alarm; arrange hall ticket, pens, water bottle","→ Sleep by 9:30 PM – 8 hours sleep is part of your preparation"],
      target:   "RESTED, CONFIDENT, PREPARED" },
  ]
},
];

// ── EXAM DAYS ─────────────────────────────────────────────────────────────────
const examDays = [
  { date:"Tue Aug 12", paper:"PAPER I",  time:"Morning 9:00 AM",
    tips:["Epidemiology • Biostatistics • Communicable Diseases • Environmental Health • Nutrition","Read all questions first (5 min) → attempt LAQs first → short essays → SAQs","Draw diagrams for every LAQ – epidemic curve, water purification flow, vaccine types","Leave 10 min at end to check all answers"]},
  { date:"Wed Aug 13", paper:"PAPER II", time:"Morning 9:00 AM",
    tips:["Demography • Family Welfare • Health Care Delivery • MCH • NCDs • Health Education","Same strategy: read all → LAQ first → short essays → SAQs","Quote current India statistics (IMR, MMR, TFR) in every relevant answer","End every LAQ with 'National Programme' section – examiners specifically look for this"]}
];

// ─── BUILD DOCUMENT ──────────────────────────────────────────────────────────
const children = [];

// ── COVER ──
children.push(
  para([tx("")], {before:800, after:0}),
  para([tx("THE TAMIL NADU DR. M.G.R. MEDICAL UNIVERSITY", {bold:true, size:28, color:C.navy})], {align:AlignmentType.CENTER, after:80}),
  para([tx("III M.B.B.S. PART I  |  COMMUNITY MEDICINE", {bold:true, size:26, color:C.navy})], {align:AlignmentType.CENTER, after:120}),
  para([tx("─────────────────────────────────────────────", {size:18, color:C.blue})], {align:AlignmentType.CENTER, after:120}),
  para([tx("WEEK-BY-WEEK STUDY SCHEDULE", {bold:true, size:32, color:C.red})], {align:AlignmentType.CENTER, after:80}),
  para([tx("Day-by-Day Topic Plan  |  June 30 → August 13, 2026", {size:22, italic:true, color:C.grey})], {align:AlignmentType.CENTER, after:80}),
  para([tx("Exam Dates: Paper I – Aug 12  |  Paper II – Aug 13", {bold:true, size:22, color:C.teal})], {align:AlignmentType.CENTER, after:200}),
);

// Cover summary table
const covRows = [
  ["Phase", "Dates", "Weeks", "Focus"],
  ["Phase 1 – Paper I Foundation","Jul 1 – Jul 21","Weeks 1-3","Epidemiology, Communicable Diseases, Environment, Nutrition"],
  ["Phase 2 – Paper II Foundation","Jul 22 – Aug 1","Weeks 4-5","Demography, Health Delivery, MCH, NCDs, Health Education"],
  ["Phase 3 – Intensive Revision","Aug 2 – Aug 8","Week 5-6","Full revision, mock tests, MCQ drills"],
  ["Phase 4 – Final Sprint","Aug 9 – Aug 11","Last 3 days","Short notes, numbers sheet, rest"],
  ["EXAM","Aug 12 – 13","","Paper I + Paper II"],
];
const covTable = new Table({
  width:{size:100, type:WidthType.PERCENTAGE},
  rows: covRows.map((r,ri) => new TableRow({
    tableHeader: ri===0,
    children: r.map((cell_text, ci) => new TableCell({
      shading:{type:ShadingType.SOLID, color: ri===0 ? C.navy : (ri%2===0 ? C.lightBlue : "FFFFFF")},
      children:[para([tx(cell_text,{bold:ri===0||ci===0, size:18, color:ri===0?C.white:"222222"})],{after:0})]
    }))
  }))
});
children.push(covTable, blank(), blank());

// ── DAILY SCHEDULE STRUCTURE ──────────────────────────────────────────────────
// Daily schedule as a tight 3-column table per day
const buildDayTable = (day) => {
  const hdrBg = C.navy;
  return new Table({
    width:{size:100, type:WidthType.PERCENTAGE},
    rows:[
      // Day header row (full width merged feel via 3 cols)
      new TableRow({ children:[
        new TableCell({
          columnSpan:3,
          shading:{type:ShadingType.SOLID, color:C.blue},
          children:[para([
            tx(`${day.day}  |  ${day.date}`, {bold:true, size:20, color:C.white}),
            tx(`     🎯 Target: ${day.target}`, {size:18, color:"D6EAF8", italic:true})
          ],{after:0})]
        })
      ]}),
      // Sub-header
      new TableRow({ children:[
        dayHdrCell("📖  MORNING SESSION (Study Block)", C.teal),
        dayHdrCell("✏️  AFTERNOON SESSION (Write & Practice)", C.orange),
        dayHdrCell("🔁  EVENING SESSION (MCQs & Revise)", C.purple),
      ]}),
      // Content
      new TableRow({ children:[
        cell(day.morning, "F0FAF8"),
        cell(day.afternoon, "FEF9F0"),
        cell(day.evening, "F5EEF8"),
      ]})
    ]
  });
};

weeks.forEach(week => {
  children.push(new Paragraph({children:[new PageBreak()]}));
  children.push(banner(week.label, week.bg));
  children.push(para([tx(week.theme, {italic:true, size:20, color:C.grey})], {bg: week.themeBg, before:40, after:120}));

  week.days.forEach((day, i) => {
    children.push(buildDayTable(day));
    children.push(blank());
  });
});

// ── EXAM DAYS TABLE ───────────────────────────────────────────────────────────
children.push(new Paragraph({children:[new PageBreak()]}));
children.push(banner("EXAM DAYS  |  AUGUST 12 & 13, 2026", C.red));
children.push(blank());

examDays.forEach(ed => {
  children.push(para([
    tx(`${ed.date}  –  ${ed.paper}  (${ed.time})`, {bold:true, size:22, color:C.white})
  ], {bg: C.navy, before:80, after:60}));
  children.push(para([tx("Topics covered in this paper:", {bold:true, size:20, color:C.blue})], {after:40}));
  children.push(para([tx(ed.tips[0], {size:19, italic:true, color:"333333"})], {indent:360, after:80}));
  children.push(para([tx("Exam day strategy:", {bold:true, size:20, color:C.teal})], {after:40}));
  ed.tips.slice(1).forEach(t => children.push(para([tx(`• ${t}`, {size:19, color:"333333"})], {indent:360, after:40})));
  children.push(blank());
});

// ── KEY NUMBERS CHEAT SHEET ───────────────────────────────────────────────────
children.push(new Paragraph({children:[new PageBreak()]}));
children.push(banner("MUST-MEMORISE NUMBERS  |  Quick Reference Sheet", C.teal));
children.push(blank());

const numData = [
  ["Item","Value","Paper"],
  ["PHC population (plains)","30,000","II"],
  ["Sub-centre population (plains)","5,000","II"],
  ["CHC population","80,000–1,20,000","II"],
  ["India IMR (2023)","~26 per 1000 live births","II"],
  ["India MMR (2020)","97 per 1,00,000 live births","II"],
  ["India TFR (2023)","2.0","II"],
  ["Replacement level TFR","2.1","II"],
  ["WHO Fluoride limit in water","1.5 mg/L","I"],
  ["Free residual chlorine (tap end)","0.2 mg/L","I"],
  ["OPV cold chain temperature","-15 to -25°C","I"],
  ["Other vaccines cold chain","+2 to +8°C","I"],
  ["BCG – dose and route","0.1 mL intradermal","I"],
  ["BMI – overweight / obese","≥25 / ≥30 kg/m²","II"],
  ["HbA1c – diagnostic for DM","≥ 6.5%","II"],
  ["Hypertension (WHO)","≥ 140/90 mmHg","II"],
  ["Herd immunity threshold – measles","83–94%","I"],
  ["Herd immunity threshold – polio","80–85%","I"],
  ["Chlorine demand contact time","30 minutes","I"],
  ["Autoclave: temp / pressure / time","121°C / 15 psi / 15 min","I"],
  ["NMHP launched","1982","II"],
  ["UIP launched","1985","I"],
  ["NRHM launched","2005","II"],
  ["Ayushman Bharat cover","Rs 5 lakh/family/year","II"],
  ["Mantoux induration read at","48–72 hours","I"],
  ["Incubation period – Cholera","Few hours to 5 days","I"],
  ["Incubation period – Typhoid","1–3 weeks","I"],
  ["Incubation period – Rabies","10 days to 7 years (avg 1–3 months)","I"],
];
const numTable = new Table({
  width:{size:100, type:WidthType.PERCENTAGE},
  rows: numData.map((r,ri) => new TableRow({
    tableHeader:ri===0,
    children: r.map((cell_text, ci) => new TableCell({
      shading:{type:ShadingType.SOLID, color: ri===0 ? C.teal : (ri%2===0 ? C.lightGreen : "FFFFFF")},
      children:[para([tx(cell_text,{bold:ri===0||ci===2, size:18, color:ri===0?C.white: ci===2 ? C.red : "222222"})],{after:0})]
    }))
  }))
});
children.push(numTable);
children.push(blank());
children.push(para([tx("★  Study this table every morning from Aug 9 onwards until you can reproduce it from memory without looking.", {bold:true, size:18, italic:true, color:C.red})], {after:60}));

// ── BUILD + SAVE ──────────────────────────────────────────────────────────────
const doc = new Document({
  creator:"Orris AI",
  title:"Community Medicine 43-Day Study Schedule – MGR University",
  sections:[{
    properties:{ page:{ margin:{ top:720, right:720, bottom:720, left:720 } } },
    headers:{ default: new Header({ children:[
      para([tx("Tamil Nadu Dr. M.G.R. Medical University  |  III MBBS Part I  |  Community Medicine Study Schedule", {size:16, italic:true, color:C.navy})],
        {align:AlignmentType.CENTER, after:0, borderBottom:true})
    ]})},
    footers:{ default: new Footer({ children:[
      para([
        tx("Page ", {size:16, color:C.grey}),
        new TextRun({children:[PageNumber.CURRENT], size:16, font, color:C.grey}),
        tx("  |  Exam: Aug 12-13, 2026  |  Prepared by Orris AI", {size:16, color:C.grey})
      ], {align:AlignmentType.CENTER, after:0})
    ]})},
    children
  }]
});

Packer.toBuffer(doc).then(buf => {
  fs.writeFileSync("/home/daytona/workspace/community-medicine-qbank/Community_Medicine_Study_Schedule.docx", buf);
  console.log("SUCCESS");
}).catch(e=>{ console.error("ERROR:", e.message); process.exit(1); });