from pptx import Presentation
from pptx.util import Inches, Pt, Emu
from pptx.dml.color import RGBColor
from pptx.enum.text import PP_ALIGN, MSO_ANCHOR
from pptx.util import Inches, Pt
import copy

prs = Presentation()
prs.slide_width = Inches(13.333)
prs.slide_height = Inches(7.5)

blank = prs.slide_layouts[6]

# ── COLOR PALETTE ──────────────────────────────────────────────
DARK_BLUE   = RGBColor(0x1A, 0x3A, 0x5C)   # header / accent
MED_BLUE    = RGBColor(0x1E, 0x6F, 0xA0)   # section bar
LIGHT_BLUE  = RGBColor(0xD6, 0xEB, 0xF7)   # content bg
TEAL        = RGBColor(0x00, 0x86, 0x8A)   # bullet accent
WHITE       = RGBColor(0xFF, 0xFF, 0xFF)
DARK_TEXT   = RGBColor(0x1A, 0x1A, 0x2E)
YELLOW_ACC  = RGBColor(0xFF, 0xD7, 0x00)
ORANGE_ACC  = RGBColor(0xFF, 0x76, 0x00)
GREEN_ACC   = RGBColor(0x00, 0x8B, 0x3A)
LIGHT_GRAY  = RGBColor(0xF0, 0xF4, 0xF8)
RED_ACC     = RGBColor(0xC0, 0x39, 0x2B)

# ── HELPER FUNCTIONS ───────────────────────────────────────────

def add_rect(slide, x, y, w, h, fill_color, alpha=None):
    shape = slide.shapes.add_shape(
        1,  # MSO_SHAPE_TYPE.RECTANGLE
        Inches(x), Inches(y), Inches(w), Inches(h)
    )
    shape.fill.solid()
    shape.fill.fore_color.rgb = fill_color
    shape.line.fill.background()
    return shape

def add_textbox(slide, x, y, w, h, text, font_size=18, bold=False,
                color=DARK_TEXT, align=PP_ALIGN.LEFT, word_wrap=True,
                italic=False, v_anchor=MSO_ANCHOR.TOP):
    tb = slide.shapes.add_textbox(Inches(x), Inches(y), Inches(w), Inches(h))
    tf = tb.text_frame
    tf.word_wrap = word_wrap
    tf.vertical_anchor = v_anchor
    tf.margin_left  = Pt(4)
    tf.margin_right = Pt(4)
    tf.margin_top   = Pt(2)
    tf.margin_bottom= Pt(2)
    p = tf.paragraphs[0]
    p.alignment = align
    run = p.add_run()
    run.text = text
    run.font.size = Pt(font_size)
    run.font.bold = bold
    run.font.italic = italic
    run.font.color.rgb = color
    run.font.name = "Calibri"
    return tb, tf

def add_paragraph(tf, text, font_size=16, bold=False, color=DARK_TEXT,
                  align=PP_ALIGN.LEFT, italic=False, space_before=0):
    p = tf.add_paragraph()
    p.alignment = align
    p.space_before = Pt(space_before)
    run = p.add_run()
    run.text = text
    run.font.size = Pt(font_size)
    run.font.bold = bold
    run.font.italic = italic
    run.font.color.rgb = color
    run.font.name = "Calibri"
    return p

def slide_header(slide, title, subtitle=None,
                 header_color=DARK_BLUE, tag_color=MED_BLUE, tag_text=""):
    """Top banner with title + optional right tag"""
    add_rect(slide, 0, 0, 13.333, 1.15, header_color)
    add_rect(slide, 0, 1.15, 13.333, 0.05, TEAL)

    # Title
    tb, tf = add_textbox(slide, 0.35, 0.08, 10.5, 1.05,
                         title, font_size=30, bold=True, color=WHITE,
                         v_anchor=MSO_ANCHOR.MIDDLE)
    tf.paragraphs[0].alignment = PP_ALIGN.LEFT

    if tag_text:
        add_rect(slide, 10.8, 0.15, 2.2, 0.85, tag_color)
        add_textbox(slide, 10.85, 0.15, 2.1, 0.85,
                    tag_text, font_size=13, bold=True, color=WHITE,
                    align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)

    if subtitle:
        add_textbox(slide, 0.35, 1.22, 12.5, 0.4,
                    subtitle, font_size=13, bold=False, color=DARK_BLUE,
                    italic=True)


def content_slide(title, bullets, tag="", col2_bullets=None,
                  note=None, header_color=DARK_BLUE, tag_color=MED_BLUE):
    """Standard 1- or 2-column bullet slide"""
    slide = prs.slides.add_slide(blank)
    add_rect(slide, 0, 0, 13.333, 7.5, LIGHT_GRAY)
    slide_header(slide, title, tag_text=tag,
                 header_color=header_color, tag_color=tag_color)

    if col2_bullets:
        # Two columns
        col_w = 6.0
        for col_idx, blist in enumerate([bullets, col2_bullets]):
            x = 0.3 + col_idx * (col_w + 0.4)
            add_rect(slide, x, 1.28, col_w, 5.6, WHITE)
            tb = slide.shapes.add_textbox(
                Inches(x + 0.18), Inches(1.38), Inches(col_w - 0.3), Inches(5.4))
            tf = tb.text_frame
            tf.word_wrap = True
            for i, b in enumerate(blist):
                if i == 0:
                    p = tf.paragraphs[0]
                else:
                    p = tf.add_paragraph()
                p.space_before = Pt(3)
                run = p.add_run()
                if b.startswith("##"):
                    run.text = b[2:].strip()
                    run.font.size = Pt(14)
                    run.font.bold = True
                    run.font.color.rgb = DARK_BLUE
                elif b.startswith("•"):
                    run.text = b
                    run.font.size = Pt(13.5)
                    run.font.color.rgb = DARK_TEXT
                else:
                    run.text = "  ▸  " + b
                    run.font.size = Pt(13.5)
                    run.font.color.rgb = DARK_TEXT
                run.font.name = "Calibri"
    else:
        # Single column
        add_rect(slide, 0.3, 1.28, 12.733, 5.6, WHITE)
        tb = slide.shapes.add_textbox(
            Inches(0.5), Inches(1.38), Inches(12.4), Inches(5.4))
        tf = tb.text_frame
        tf.word_wrap = True
        for i, b in enumerate(bullets):
            p = tf.paragraphs[0] if i == 0 else tf.add_paragraph()
            p.space_before = Pt(3)
            run = p.add_run()
            if b.startswith("##"):
                run.text = b[2:].strip()
                run.font.size = Pt(15)
                run.font.bold = True
                run.font.color.rgb = DARK_BLUE
                p.space_before = Pt(7)
            elif b.startswith("***"):
                run.text = b[3:].strip()
                run.font.size = Pt(14)
                run.font.bold = True
                run.font.italic = True
                run.font.color.rgb = RED_ACC
            elif b.startswith("**"):
                run.text = b[2:].strip()
                run.font.size = Pt(14)
                run.font.bold = True
                run.font.color.rgb = TEAL
            else:
                run.text = "  ➤  " + b
                run.font.size = Pt(14)
                run.font.color.rgb = DARK_TEXT
            run.font.name = "Calibri"

    if note:
        add_rect(slide, 0.3, 6.95, 12.733, 0.45, LIGHT_BLUE)
        add_textbox(slide, 0.45, 6.97, 12.4, 0.4,
                    "📌  " + note, font_size=11.5, bold=False, color=DARK_BLUE,
                    italic=True)
    return slide


def section_divider(title, subtitle="", color=MED_BLUE, tag=""):
    """Full-bleed section divider slide"""
    slide = prs.slides.add_slide(blank)
    add_rect(slide, 0, 0, 13.333, 7.5, color)
    # Decorative stripe
    add_rect(slide, 0, 3.35, 13.333, 0.08, YELLOW_ACC)
    add_rect(slide, 0, 6.9,  13.333, 0.6,  RGBColor(0,0,0))
    # Section number tag
    if tag:
        add_rect(slide, 0.5, 1.5, 1.0, 0.8, YELLOW_ACC)
        add_textbox(slide, 0.5, 1.5, 1.0, 0.8, tag,
                    font_size=22, bold=True, color=DARK_BLUE,
                    align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)
    # Main title
    add_textbox(slide, 0.5, 2.2, 12.0, 1.5,
                title, font_size=40, bold=True, color=WHITE,
                align=PP_ALIGN.LEFT, v_anchor=MSO_ANCHOR.MIDDLE)
    if subtitle:
        add_textbox(slide, 0.5, 3.7, 12.0, 0.8,
                    subtitle, font_size=19, bold=False, color=LIGHT_BLUE,
                    italic=True)
    add_textbox(slide, 0.5, 6.9, 12.0, 0.6,
                "Park's Textbook of Preventive and Social Medicine",
                font_size=12, color=WHITE, italic=True,
                align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)
    return slide


def table_slide(title, headers, rows, tag="", note=None,
                header_color=DARK_BLUE, tag_color=MED_BLUE):
    """Slide with a table"""
    from pptx.util import Inches, Pt
    slide = prs.slides.add_slide(blank)
    add_rect(slide, 0, 0, 13.333, 7.5, LIGHT_GRAY)
    slide_header(slide, title, tag_text=tag,
                 header_color=header_color, tag_color=tag_color)

    n_cols = len(headers)
    n_rows = len(rows) + 1
    tbl = slide.shapes.add_table(
        n_rows, n_cols,
        Inches(0.4), Inches(1.5),
        Inches(12.5), Inches(4.8 if not note else 4.5)
    ).table

    # Header row
    for ci, h in enumerate(headers):
        cell = tbl.cell(0, ci)
        cell.fill.solid()
        cell.fill.fore_color.rgb = DARK_BLUE
        p = cell.text_frame.paragraphs[0]
        p.alignment = PP_ALIGN.CENTER
        run = p.add_run()
        run.text = h
        run.font.bold = True
        run.font.size = Pt(14)
        run.font.color.rgb = WHITE
        run.font.name = "Calibri"

    # Data rows
    for ri, row in enumerate(rows):
        bg = WHITE if ri % 2 == 0 else LIGHT_BLUE
        for ci, cell_text in enumerate(row):
            cell = tbl.cell(ri + 1, ci)
            cell.fill.solid()
            cell.fill.fore_color.rgb = bg
            p = cell.text_frame.paragraphs[0]
            p.alignment = PP_ALIGN.CENTER
            run = p.add_run()
            run.text = cell_text
            run.font.size = Pt(13)
            run.font.color.rgb = DARK_TEXT
            run.font.name = "Calibri"

    if note:
        add_rect(slide, 0.4, 6.15, 12.5, 0.45, LIGHT_BLUE)
        add_textbox(slide, 0.55, 6.17, 12.2, 0.4,
                    "📌  " + note, font_size=11.5, bold=False, color=DARK_BLUE, italic=True)
    return slide


# ══════════════════════════════════════════════════════════════════
# SLIDE 1 — TITLE SLIDE
# ══════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, DARK_BLUE)
add_rect(slide, 0, 5.8, 13.333, 1.7, MED_BLUE)
add_rect(slide, 0, 3.0, 13.333, 0.06, YELLOW_ACC)
add_rect(slide, 0, 5.75, 13.333, 0.08, TEAL)

add_textbox(slide, 0.5, 0.4, 12.3, 0.7,
            "PSM SEMINAR", font_size=18, bold=True,
            color=YELLOW_ACC, align=PP_ALIGN.CENTER)

add_textbox(slide, 0.5, 1.0, 12.3, 1.8,
            "Infancy, Neonatal Care,\nLow Birth Weight &\nFeeding of Infants",
            font_size=38, bold=True, color=WHITE,
            align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)

add_textbox(slide, 0.5, 3.1, 12.3, 0.6,
            "Park's Textbook of Preventive and Social Medicine  |  Pages 619 – 630",
            font_size=14, bold=False, italic=True,
            color=LIGHT_BLUE, align=PP_ALIGN.CENTER)

add_textbox(slide, 0.5, 5.85, 12.3, 0.5,
            "Department of Community Medicine  |  MBBS – 3rd Year",
            font_size=15, bold=False, color=WHITE, align=PP_ALIGN.CENTER,
            v_anchor=MSO_ANCHOR.MIDDLE)
add_textbox(slide, 0.5, 6.35, 12.3, 0.5,
            "Subject: Preventive & Social Medicine (PSM)",
            font_size=13, bold=False, italic=True,
            color=LIGHT_BLUE, align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)


# ══════════════════════════════════════════════════════════════════
# SLIDE 2 — CONTENTS
# ══════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, LIGHT_GRAY)
slide_header(slide, "Table of Contents", tag_text="OVERVIEW")
add_rect(slide, 0.3, 1.28, 12.733, 5.6, WHITE)

sections = [
    ("01", "INFANCY", "Definition, Statistics, IMR, Key Interventions", DARK_BLUE),
    ("02", "NEONATAL CARE", "Early & Late Neonatal Care, Immediate Care, Apgar Score", MED_BLUE),
    ("03", "NEONATAL EXAMINATIONS", "First Examination, Second Examination, Measuring the Baby", TEAL),
    ("04", "LOW BIRTH WEIGHT (LBW)", "Definition, Classification, Causes, Importance, Management", GREEN_ACC),
    ("05", "FEEDING OF INFANTS", "Breast-feeding, Advantages, Complementary Feeding, IMS Act", RED_ACC),
]

for i, (num, sec, sub, col) in enumerate(sections):
    y = 1.4 + i * 1.02
    add_rect(slide, 0.4, y, 0.65, 0.8, col)
    add_textbox(slide, 0.4, y, 0.65, 0.8, num,
                font_size=16, bold=True, color=WHITE,
                align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)
    add_textbox(slide, 1.15, y + 0.03, 11.5, 0.38,
                sec, font_size=16, bold=True, color=col)
    add_textbox(slide, 1.15, y + 0.42, 11.5, 0.35,
                sub, font_size=12, italic=True, color=DARK_TEXT)


# ══════════════════════════════════════════════════════════════════
# SECTION 1 — INFANCY
# ══════════════════════════════════════════════════════════════════
section_divider("SECTION 1: INFANCY",
                "Definition · Statistics · IMR · Key Interventions",
                color=DARK_BLUE, tag="01")

content_slide(
    "INFANCY — Definition & Population Statistics",
    [
        "## Definition",
        "Infants = children aged 0–1 year",
        "Constitute approximately 2.92% of the total population in India",
        "## Global Burden",
        "136 million children born annually in the world",
        "90% of births occur in the Third World (developing countries)",
        "Survival of newborns has improved by 50% in the last 20 years",
        "## India vs. Developed World",
        "India's Infant Mortality Rate (IMR): 58 per 1000 live births",
        "Developed countries IMR: 5 per 1000 live births",
    ],
    tag="INFANCY",
    note="Source: Park's Textbook of Preventive & Social Medicine, p.619-620"
)

content_slide(
    "INFANCY — Key Problems",
    [
        "## At Birth",
        "20–30% of babies are underweight at birth → vulnerable to infection and disease",
        "## In the Neonatal Period",
        "40% of total infant mortality occurs in the first month of life",
        "## Weaning Period",
        "1 out of 4 surviving children receives neither the quality NOR quantity of food needed",
        "Children in developing countries reach adulthood with health already impaired",
        "## Consequence",
        "Result: malnutrition, infection and poor growth perpetuated across generations",
    ],
    tag="INFANCY",
    note="Source: Park's Textbook, p.619"
)

content_slide(
    "INFANCY — Key Low-Cost Interventions",
    [
        "## Available Low-Cost Measures for Saving Infant Lives:",
        "1.  Immunization",
        "2.  Breast feeding",
        "3.  Birth spacing",
        "4.  Growth monitoring",
        "5.  Improved weaning",
        "6.  Oral rehydration therapy (ORT)",
        "## Key Principle",
        "Many lives can be saved with simple, low-cost interventions",
        "Attention must be focused on these elements of child health care in developing countries",
    ],
    tag="INFANCY",
    note="Source: Park's Textbook, p.620"
)


# ══════════════════════════════════════════════════════════════════
# SECTION 2 — NEONATAL CARE
# ══════════════════════════════════════════════════════════════════
section_divider("SECTION 2: NEONATAL CARE",
                "Early Neonatal Care · Immediate Care · Late Neonatal Care",
                color=MED_BLUE, tag="02")

content_slide(
    "NEONATAL CARE — Introduction",
    [
        "## Definition",
        "Neonatology = branch of medicine dealing with care of the newborn",
        "## Teamwork is Essential — Involves:",
        "Obstetrics & Gynaecology",
        "Paediatrics",
        "Preventive & Social Medicine",
        "Community Health Services",
        "Nursing",
        "## Key Role",
        "The Paediatrician has the key role as coordinator and guide for the whole team",
        "## Goal",
        "To make an impact on the vast problems of perinatal and neonatal mortality and morbidity",
    ],
    tag="NEONATAL CARE",
    note="Source: Park's Textbook, p.620"
)

content_slide(
    "EARLY NEONATAL CARE — Importance",
    [
        "## Why is the First Week Critical?",
        "First week of life = THE MOST CRUCIAL PERIOD in the life of an infant",
        "In India, 61.3% of ALL infant deaths occur within the first month of life",
        "Of these, MORE THAN HALF die during the first WEEK of birth",
        "Risk of death is GREATEST during the first 24–48 hours after birth",
        "## Rural Problem",
        "Problem is MORE ACUTE in rural areas",
        "Expert obstetric care is scarce",
        "Home environmental conditions are usually unsatisfactory",
    ],
    tag="EARLY NEONATAL CARE",
    header_color=MED_BLUE,
    note="Source: Park's Textbook, p.620"
)

content_slide(
    "EARLY NEONATAL CARE — Objectives",
    [
        "## The objective of early neonatal care is to assist the newborn in adapting to the external environment:",
        "(i)   Establishment and maintenance of cardio-respiratory functions",
        "(ii)  Maintenance of body temperature",
        "(iii) Avoidance of infection",
        "(iv)  Establishment of a satisfactory feeding regimen",
        "(v)   Early detection and treatment of congenital and acquired disorders",
        "      (especially infections)",
        "## Congenital Infections (TORCH)",
        "Toxoplasmosis, Rubella, alpha-Herpes virus 1 or 2, Cytomegalovirus",
    ],
    tag="EARLY NEONATAL CARE",
    header_color=MED_BLUE,
    note="Source: Park's Textbook, p.620-621"
)

# Immediate care slides
content_slide(
    "IMMEDIATE CARE — 1. Clearing the Airway",
    [
        "## Priority No.1 at Birth",
        "Establishment of breathing is the most important priority — EVERYTHING ELSE IS SECONDARY",
        "## Steps:",
        "Position baby with head LOW → helps drain secretions",
        "Gentle suction to remove mucus and amniotic fluid",
        "## If Natural Breathing Fails within 1 Minute:",
        "Resuscitation becomes necessary",
        "Active measures: suction, oxygen mask, intubation, assisted respiration",
        "All labour wards must be equipped with resuscitation equipment including oxygen",
        "## Critical Point:",
        "If heart has stopped beating for 5 minutes → baby is probably dead",
    ],
    tag="IMMEDIATE CARE",
    header_color=MED_BLUE,
    note="Source: Park's Textbook, p.621"
)

content_slide(
    "IMMEDIATE CARE — 2. Apgar Score",
    [
        "## What is the Apgar Score?",
        "Taken at 1 MINUTE and again at 5 MINUTES after birth",
        "Omitting Apgar scoring is considered NEGLIGENCE (especially for LBW babies)",
        "Provides an immediate estimate of the physical condition of the baby",
        "## Parameters Assessed (each scored 0, 1, or 2):",
        "Heart Rate | Respiratory Effort | Muscle Tone | Reflex Response | Colour",
        "## Total Score = 10",
        "7–10 : No depression (Normal)",
        "4–6  : Mild depression",
        "0–3  : Severe depression",
        "## Action:",
        "Score BELOW 5 → needs PROMPT ACTION",
        "Low score at 5 minutes → HIGH RISK of complications and death in neonatal period",
    ],
    tag="IMMEDIATE CARE",
    header_color=MED_BLUE,
    note="Source: Park's Textbook, p.621"
)

table_slide(
    "APGAR SCORE — Table (Park's Table 3)",
    ["Sign", "Score 0", "Score 1", "Score 2"],
    [
        ["Heart Rate",          "Absent",          "Slow (< 100/min)",           "Over 100/min"],
        ["Respiratory Effort",  "Absent",           "Slow / Irregular",           "Good Crying"],
        ["Muscle Tone",         "Flaccid",          "Some flexion of extremities","Active movements"],
        ["Reflex Response",     "No response",      "Grimace",                    "Cry"],
        ["Colour",              "Blue / Pale",      "Body pink, Extremities blue","Completely pink"],
    ],
    tag="APGAR SCORE",
    note="Total Score = 10 | 7-10: Normal | 4-6: Mild depression | 0-3: Severe depression | Score <5 → Prompt action",
    header_color=MED_BLUE
)

content_slide(
    "IMMEDIATE CARE — 3, 4 & 5: Temperature, Cord & Eyes",
    [
        "## 3. Maintenance of Body Temperature",
        "Newborns lose heat rapidly — dry and wrap baby immediately",
        "Place in warm environment; avoid drafts",
        "Skin-to-skin contact (Kangaroo Mother Care) helps maintain temperature",
        "## 4. Care of the Umbilical Cord",
        "Apply clean and dry technique; proper ligature",
        "Keep cord dry to prevent omphalitis (cord infection)",
        "## 5. Eye Care — Ophthalmia Neonatorum Prophylaxis",
        "Instil 1% silver nitrate drops / erythromycin / tetracycline ointment",
        "Prevents gonococcal conjunctivitis (ophthalmia neonatorum)",
        "## 6. Early Feeding",
        "Breast-feeding should be initiated WITHIN AN HOUR of birth",
    ],
    tag="IMMEDIATE CARE",
    header_color=MED_BLUE,
    note="Source: Park's Textbook, p.621"
)

content_slide(
    "IMMEDIATE CARE — 6. Feeding the Newborn",
    [
        "## Initiate Breast-feeding Within 1 Hour of Birth",
        "Though little milk at that time, it helps establish feeding",
        "Establishes a close mother–child relationship known as 'BONDING'",
        "## Colostrum — First Milk",
        "Most suitable food for the baby in the early period",
        "High concentration of protein and other nutrients",
        "Rich in anti-infective factors → protects against respiratory infections and diarrhoeal diseases",
        "Supplementary feeds are NOT necessary",
        "## Regular Milk",
        "Comes on the 3rd to 6th day after birth",
        "Baby should be allowed to breast-feed WHENEVER IT WANTS (demand feeding)",
        "Feeding on demand helps the baby gain weight",
        "ADVISE MOTHER to AVOID FEEDING BOTTLES",
    ],
    tag="IMMEDIATE CARE",
    header_color=MED_BLUE,
    note="Source: Park's Textbook, p.621"
)


# ══════════════════════════════════════════════════════════════════
# SECTION 3 — NEONATAL EXAMINATIONS
# ══════════════════════════════════════════════════════════════════
section_divider("SECTION 3: NEONATAL EXAMINATIONS",
                "First Examination · Second Examination · Measuring the Baby",
                color=TEAL, tag="03")

content_slide(
    "NEONATAL EXAMINATIONS — First Examination",
    [
        "## When?",
        "Made SOON AFTER BIRTH, preferably in the delivery room",
        "## Purpose (3 Aims):",
        "(a)  Ascertain that the baby has NOT suffered injuries during the birth process",
        "(b)  Detect MALFORMATIONS, especially those requiring urgent treatment",
        "(c)  Assess MATURITY",
        "## Abnormalities Requiring IMMEDIATE Attention:",
        "Cyanosis of the lips and skin",
        "Any difficulty in breathing",
        "Imperforated anus",
        "Persistent vomiting",
        "Signs of cerebral irritation: twitchings, convulsions, neck rigidity, bulging anterior fontanel",
        "Temperature instability",
    ],
    tag="NEONATAL EXAM",
    header_color=TEAL,
    note="Source: Park's Textbook, p.622"
)

content_slide(
    "NEONATAL EXAMINATIONS — Second Examination",
    [
        "## When & By Whom?",
        "Within 24 HOURS after birth, done by a PAEDIATRICIAN",
        "Forms the FIRST STAGE of a continual process of health care surveillance",
        "Detailed, systematic examination from HEAD TO FOOT, conducted in GOOD LIGHT",
        "## Protocol:",
        "1. Body Size: weight, crown–heel length, head and thoracic perimeters",
        "2. Body Temperature",
        "3. Skin: cyanosis, jaundice, pallor, erythema, vesicular/bullous lesions",
        "4. Cardio-Respiratory: murmurs, absent femoral pulse, cyanosis, RR >60/min, chest retraction",
        "5. Neuro-Behavioural: posture, muscle tone, tendon reflexes, cry, movements",
        "6. Head & Face: hydrocephalus, large fontanel",
    ],
    tag="NEONATAL EXAM",
    header_color=TEAL,
    note="Source: Park's Textbook, p.622-623"
)

content_slide(
    "MEASURING THE BABY — Body Measurements",
    [
        "## Key Anthropometric Measurements:",
        "## 1. Birth Weight",
        "Single most important measurement",
        "Measured at birth (preferably within 1st hour of life)",
        "Normal: ≥ 2500 g (2.5 kg)",
        "## 2. Crown–Heel Length (Recumbent Length)",
        "Measured from crown of head to heel",
        "## 3. Head Circumference (HC)",
        "Normal at birth: 33–35 cm",
        "Measured at the level of the supraorbital ridges",
        "## 4. Chest / Thoracic Circumference",
        "Normal: approximately equal to or less than head circumference at birth",
        "## 5. Mid-Upper Arm Circumference (MUAC)",
        "Useful for assessing nutritional status",
    ],
    tag="MEASURING BABY",
    header_color=TEAL,
    note="Source: Park's Textbook, p.622-623"
)

content_slide(
    "NEONATAL SCREENING",
    [
        "## Purpose of Neonatal Screening:",
        "To detect metabolic and genetic disorders early before symptoms appear",
        "Early treatment can prevent disability and death",
        "## Common Conditions Screened:",
        "Congenital hypothyroidism",
        "Phenylketonuria (PKU)",
        "Congenital adrenal hyperplasia",
        "G6PD deficiency",
        "Hearing defects",
        "## Method:",
        "Blood spot test (Guthrie card) — heel prick, preferably on Day 3–5 of life",
    ],
    tag="NEONATAL CARE",
    header_color=TEAL,
    note="Source: Park's Textbook, p.623-624"
)

content_slide(
    "LATE NEONATAL CARE",
    [
        "## Period:",
        "Remaining 3 weeks of the neonatal period (Day 7 to Day 28)",
        "## Common and Serious Hazards:",
        "INFECTION",
        "Failure of satisfactory NUTRITION",
        "## Main Killers:",
        "Diarrhoea",
        "Pneumonia",
        "These take a heavy toll of life in infants exposed to unsatisfactory environment",
        "## Key Point:",
        "Case fatality rate of TRIVIAL episodes can increase DRAMATICALLY when elementary care is not given",
        "Prevention lies in safe environment, adequate nutrition, and early treatment",
    ],
    tag="LATE NEONATAL CARE",
    header_color=MED_BLUE,
    note="Source: Park's Textbook, p.624"
)


# ══════════════════════════════════════════════════════════════════
# SECTION 4 — LOW BIRTH WEIGHT
# ══════════════════════════════════════════════════════════════════
section_divider("SECTION 4: LOW BIRTH WEIGHT (LBW)",
                "Definition · Classification · Causes · Importance · Management",
                color=GREEN_ACC, tag="04")

content_slide(
    "LOW BIRTH WEIGHT — Definition",
    [
        '## Park\'s Definition:',
        '"The birth weight of an infant is the SINGLE MOST IMPORTANT DETERMINANT',
        ' of its chances of survival, healthy growth and development."',
        "## International Definition (WHO):",
        "LBW = Birth weight < 2.5 kg (up to and including 2499 g)",
        "Measured preferably WITHIN THE FIRST HOUR of life",
        "(before significant postnatal weight loss has occurred)",
        "## Two Main Groups of LBW Babies:",
        "1.  Premature babies (SHORT GESTATION) — born too early",
        "2.  Small for Dates (SFD) — Foetal Growth Retardation (FGR)",
        "## India vs. Developed World:",
        "Developed countries: SHORT GESTATION is the major cause",
        "India (high proportion of LBW): FOETAL GROWTH RETARDATION is the major cause",
    ],
    tag="LBW",
    header_color=GREEN_ACC,
    note="Source: Park's Textbook, p.624-625"
)

table_slide(
    "LBW — Classification by Birth Weight",
    ["Category", "Birth Weight"],
    [
        ["Low Birth Weight (LBW)",          "< 2500 g (< 2.5 kg)"],
        ["Very Low Birth Weight (VLBW)",    "< 1500 g (< 1.5 kg)"],
        ["Extremely Low Birth Weight (ELBW)","< 1000 g (< 1.0 kg)"],
        ["Normal Birth Weight",             "≥ 2500 g (≥ 2.5 kg)"],
    ],
    tag="LBW",
    note="LBW = any infant < 2.5 kg regardless of gestational age | Source: Park's p.625",
    header_color=GREEN_ACC
)

table_slide(
    "LBW — Classification by Gestational Age",
    ["Category", "Gestational Age", "Days"],
    [
        ["Preterm",   "Born before 37 completed weeks", "< 259 days"],
        ["Term",      "37 to < 42 completed weeks",     "259–293 days"],
        ["Post-term", "≥ 42 completed weeks",            "≥ 294 days"],
    ],
    tag="LBW",
    note="Sub-categories of Preterm: Extremely preterm (<28wks) | Very preterm (28-<32wks) | Moderate-Late preterm (32-37wks)",
    header_color=GREEN_ACC
)

content_slide(
    "LBW — Preterm Babies",
    [
        "## Definition:",
        "Babies born alive before 37 completed weeks of pregnancy",
        "## Sub-categories of Preterm:",
        "Extremely preterm  : < 28 weeks",
        "Very preterm       : 28 to < 32 weeks",
        "Moderate to late preterm : 32 to 37 weeks",
        "## Key Feature:",
        "These babies are born TOO EARLY",
        "Their INTRAUTERINE GROWTH may be NORMAL",
        "i.e., their weight, length, head circumference may be normal for their gestational age",
        "## Very premature babies (< 28 weeks):",
        "Many organs too immature to function well outside the uterus",
        "Need help with breathing, eating, fighting infection, staying warm",
    ],
    tag="LBW",
    header_color=GREEN_ACC,
    note="Source: Park's Textbook, p.625"
)

content_slide(
    "LBW — Small for Dates (SFD) / IUGR Babies",
    [
        "## Definition:",
        "Weight, length and head circumference are BELOW THE 10TH PERCENTILE for their gestational age",
        "Also called: Intrauterine Growth Retardation (IUGR)",
        "## Key Risks:",
        "High risk of dying during NEONATAL PERIOD and INFANCY",
        "Significantly raises infant and perinatal mortality rates",
        "Most become victims of PROTEIN-ENERGY MALNUTRITION and INFECTIONS",
        "## In Developing Countries — 3 Interrelated Conditions:",
        "1.  Malnutrition",
        "2.  Infection",
        "3.  Unregulated fertility",
        "Often due to poor socio-economic and environmental conditions",
    ],
    tag="LBW / IUGR",
    header_color=GREEN_ACC,
    note="Source: Park's Textbook, p.625-626"
)

content_slide(
    "LBW — Causes / Aetiology",
    [
        "## MATERNAL FACTORS (Most Common in India):",
        "Malnutrition, severe anaemia",
        "Heavy physical work during pregnancy",
        "Hypertension, malaria, toxaemia",
        "Smoking",
        "Low economic status, low education",
        "Short maternal stature, very young maternal age",
        "High parity, close birth spacing",
        "## PLACENTAL CAUSES:",
        "Placental insufficiency, placental abnormalities",
        "## FOETAL CAUSES:",
        "Foetal abnormalities, intrauterine infections",
        "Chromosomal abnormality, multiple gestation",
    ],
    tag="LBW CAUSES",
    header_color=GREEN_ACC,
    note="Source: Park's Textbook, p.626"
)

content_slide(
    "LBW — Problems of Premature Babies",
    [
        "## Temperature Instability",
        "Inability to stay warm due to LOW BODY FAT",
        "## Respiratory Problems",
        "Lungs may be immature → Respiratory Distress Syndrome (RDS)",
        "## Feeding Difficulties",
        "Weak suck reflex, unable to coordinate sucking and swallowing",
        "## Infection Susceptibility",
        "Immature immune system → prone to sepsis",
        "## Other Problems:",
        "Intraventricular haemorrhage (IVH)",
        "Necrotizing enterocolitis (NEC)",
        "Retinopathy of prematurity (ROP)",
        "Patent ductus arteriosus (PDA)",
        "Jaundice (hyperbilirubinaemia)",
    ],
    tag="LBW",
    header_color=GREEN_ACC,
    note="Source: Park's Textbook, p.626"
)

content_slide(
    "LBW — Public Health Importance",
    [
        "## LBW is ONE OF THE MOST SERIOUS CHALLENGES in MCH",
        "High incidence — major public health problem",
        "## Mortality:",
        "HALF of all perinatal deaths are due to LBW",
        "ONE-THIRD of all infant deaths are due to LBW",
        "IMR is approximately 20 TIMES GREATER for LBW babies vs. normal babies",
        "LOWER the birth weight → LOWER the survival chance",
        "## Morbidity:",
        "Association with MENTAL RETARDATION",
        "Victims of protein-energy malnutrition and infection",
        "## Socio-economic Significance:",
        "LBW reflects INADEQUATE NUTRITION and ILL-HEALTH of the MOTHER",
        "LBW points to deficient prenatal care and need for improved newborn care",
        "Strong correlation between maternal nutritional status and birth weight",
    ],
    tag="LBW IMPORTANCE",
    header_color=GREEN_ACC,
    note="Source: Park's Textbook, p.626"
)

content_slide(
    "LBW — Computation of LBW Rate",
    [
        "## Formula:",
        "LBW Rate = (Live-born babies with birth weight < 2.5 kg ÷ Total live births) × 100",
        "## Interpretation:",
        "A high percentage of LBW points to:",
        "   → Deficient health status of pregnant women",
        "   → Inadequate prenatal care",
        "   → Need for improved care of the newborn",
        "## Prevention — Addressing Maternal Factors:",
        "Improve maternal nutrition (iron, folic acid, protein)",
        "Antenatal care — early detection and treatment of anaemia, hypertension, infections",
        "Birth spacing (family planning)",
        "Reduce workload of pregnant women",
        "Improve socio-economic and educational status",
    ],
    tag="LBW",
    header_color=GREEN_ACC,
    note="Source: Park's Textbook, p.626"
)

content_slide(
    "LBW — Management / Facility-Based Newborn Care",
    [
        "## Facility-Based Newborn Care Services:",
        "1.  Newborn Care Corner (NCC)",
        "2.  Newborn Stabilization Unit (NBSU)",
        "3.  Special Newborn Care Unit (SNCU)",
        "## Features:",
        "Some units are linked to obstetric units capable of monitoring the foetus",
        "Development of PERINATAL INTENSIVE CARE UNITS has been associated with a DECLINE in neonatal mortality",
        "## General Principles of LBW Baby Care:",
        "Maintain body temperature (incubator / Kangaroo Mother Care)",
        "Ensure adequate nutrition (breast milk preferred; gavage feeding if needed)",
        "Prevent and treat infections",
        "Monitor for complications (RDS, NEC, IVH, jaundice)",
        "Early referral to SNCU / NICU if required",
    ],
    tag="LBW MANAGEMENT",
    header_color=GREEN_ACC,
    note="Source: Park's Textbook, p.627"
)


# ══════════════════════════════════════════════════════════════════
# SECTION 5 — FEEDING OF INFANTS
# ══════════════════════════════════════════════════════════════════
section_divider("SECTION 5: FEEDING OF INFANTS",
                "Breast-feeding · Advantages · Complementary Feeding · IMS Act",
                color=RED_ACC, tag="05")

content_slide(
    "FEEDING OF INFANTS — Introduction & Breast-feeding",
    [
        '## Park\'s Statement:',
        '"Under ANY circumstances, breast milk is the IDEAL FOOD for the infant."',
        "## Key Facts:",
        "No other food is required by the baby until 6 MONTHS after birth",
        "Indian mothers secrete 450–600 ml of milk daily",
        "Protein content: 1.1 g per 100 ml",
        "Energy value: 70 kcal per 100 ml",
        "## Impact on Infant Mortality:",
        "IMR is 5–10 TIMES HIGHER among children NOT breast-fed or breast-fed < 6 months",
        "A child who is breast-fed has GREATER CHANCES OF SURVIVAL than an artificially fed child",
        "Despite marked advantages, popularity of breast-feeding has DECLINED significantly",
    ],
    tag="BREAST-FEEDING",
    header_color=RED_ACC,
    note="Source: Park's Textbook, p.627-628"
)

content_slide(
    "ADVANTAGES OF BREAST-FEEDING",
    [
        "1.  Safe, clean, hygienic, cheap, available at correct temperature",
        "2.  Fully meets nutritional requirements in first few months of life",
        "3.  Contains ANTIMICROBIAL FACTORS: macrophages, lymphocytes, secretory IgA,",
        "    anti-streptococcal factor, lysozyme, lactoferrin",
        "    → Protects against diarrhoea, NEC, and respiratory infections",
        "4.  Easily digested by both normal AND premature babies",
        "5.  Promotes BONDING between mother and infant",
        "6.  Sucking helps development of JAWS and TEETH",
        "7.  Protects baby from tendency to OBESITY",
        "8.  Prevents malnutrition, REDUCES INFANT MORTALITY",
        "9.  Prevents neonatal hypocalcaemia and hypomagnesaemia",
        "10. Helps SPACE CHILDREN by prolonging the period of infertility",
        "11. Special fatty acids → IQ HIGHER BY ~8 POINTS and better visual acuity",
    ],
    tag="BREAST-FEEDING",
    header_color=RED_ACC,
    note="Source: Park's Textbook, p.628"
)

content_slide(
    "MATERNAL BENEFITS OF EARLY INITIATION OF BREAST-FEEDING",
    [
        "## Benefits to the MOTHER:",
        "Lowers risk of POSTPARTUM HAEMORRHAGE and anaemia",
        "Boosts mother's immune system",
        "Delays next pregnancy (natural contraception)",
        "Reduces insulin requirements in diabetic mothers",
        "## Long-term Maternal Benefits:",
        "Protects from OVARIAN CANCER",
        "Protects from BREAST CANCER",
        "Protects from OSTEOPOROSIS",
        "## Key Principle:",
        "Early initiation of breast-feeding benefits BOTH mother AND baby",
    ],
    tag="BREAST-FEEDING",
    header_color=RED_ACC,
    note="Source: Park's Textbook, p.628"
)

content_slide(
    "COMPLEMENTARY FEEDING & WEANING",
    [
        "## Current Policy (Revised Guidelines):",
        "EXCLUSIVE BREAST-FEEDING for the first 6 MONTHS",
        "(Previously: 4–6 months — NOW REPLACED)",
        "Introduction of COMPLEMENTARY FOODS at 6 MONTHS",
        "Continue breast-feeding up to 2 YEARS or BEYOND",
        "## What is Complementary Feeding?",
        "Introduction of semi-solid/solid foods alongside breast milk from 6 months",
        "Should be energy-dense, nutrient-rich, safe and hygienic",
        "## Common Problems During Weaning:",
        "Poor hygiene → diarrhoeal diseases",
        "Inadequate food quantity/quality → protein-energy malnutrition",
        "Early introduction of cow's milk or formula → disadvantages",
    ],
    tag="COMPLEMENTARY FEEDING",
    header_color=RED_ACC,
    note="Source: Park's Textbook, p.628-629"
)

content_slide(
    "IMS ACT — Infant Milk Substitutes Act",
    [
        "## Full Name:",
        "Infant Milk Substitutes, Feeding Bottles and Infant Food",
        "(Regulation of Production, Supply and Distribution) Act, 1992",
        "## Key Details:",
        "Came into FORCE: 1st August 1993",
        "## Purpose:",
        "PROHIBITS the promotion of infant food, infant milk substitutes and feeding bottles",
        "Government of India is committed to PROMOTE BREAST-FEEDING",
        "## Amendment Act 2003:",
        "Came into action from 1st JANUARY 2004",
        "New norms: exclusive breast-feeding for first 6 months",
        "(replacing the earlier 4–6 months age range)",
    ],
    tag="IMS ACT",
    header_color=RED_ACC,
    note="Source: Park's Textbook, p.629"
)

content_slide(
    "NATIONAL GOALS FOR INFANT FEEDING (by 2007)",
    [
        "## Goal 1:",
        "Reduce prevalence of UNDERWEIGHT children under 3 years: 47% → 40%",
        "Reduce SEVERE UNDERNUTRITION in 0–6 year age group by 50%",
        "## Goal 2:",
        "Enhance early institution of breast-feeding (COLOSTRUM FEEDING)",
        "Current: 15.8%  →  Target: 50%",
        "## Goal 3:",
        "Enhance EXCLUSIVE BREAST-FEEDING rate for first 6 months",
        "Current: 55.2% (for 0–3 months)  →  Target: 80%",
        "## Goal 4:",
        "Enhance COMPLEMENTARY FEEDING rate at 6 months",
        "Current: 33.5%  →  Target: 75%",
    ],
    tag="NATIONAL GOALS",
    header_color=RED_ACC,
    note="Source: Park's Textbook, p.629"
)


# ══════════════════════════════════════════════════════════════════
# FINAL SLIDE — SUMMARY
# ══════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, LIGHT_GRAY)
slide_header(slide, "SUMMARY", tag_text="KEY POINTS", header_color=DARK_BLUE)
add_rect(slide, 0.3, 1.28, 12.733, 5.6, WHITE)

summary_items = [
    (DARK_BLUE,  "INFANCY",             "IMR India = 58/1000 | 40% infant deaths in 1st month | 6 key low-cost interventions"),
    (MED_BLUE,   "NEONATAL CARE",       "1st week = most crucial | 61.3% infant deaths in 1st month | Apgar at 1 & 5 min"),
    (TEAL,       "NEONATAL EXAMS",      "1st exam at birth | 2nd exam by paediatrician within 24 hrs | Head-to-toe protocol"),
    (GREEN_ACC,  "LOW BIRTH WEIGHT",    "LBW < 2.5 kg | 2 groups: Preterm & SFD/IUGR | IMR 20x higher in LBW"),
    (RED_ACC,    "FEEDING OF INFANTS",  "Exclusive BF for 6 months | IMS Act 1992 | Complementary feeding from 6 months"),
]

for i, (col, title, desc) in enumerate(summary_items):
    y = 1.4 + i * 1.0
    add_rect(slide, 0.4, y, 0.08, 0.75, col)
    add_textbox(slide, 0.6, y + 0.02, 2.8, 0.38,
                title, font_size=14, bold=True, color=col)
    add_textbox(slide, 0.6, y + 0.4, 12.2, 0.38,
                desc, font_size=12.5, color=DARK_TEXT)

# ══════════════════════════════════════════════════════════════════
# THANK YOU SLIDE
# ══════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, DARK_BLUE)
add_rect(slide, 0, 5.2, 13.333, 0.08, YELLOW_ACC)

add_textbox(slide, 0.5, 1.5, 12.3, 1.5,
            "THANK YOU",
            font_size=60, bold=True, color=WHITE,
            align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)

add_textbox(slide, 0.5, 3.2, 12.3, 0.7,
            "Questions & Discussion Welcome",
            font_size=22, bold=False, italic=True,
            color=YELLOW_ACC, align=PP_ALIGN.CENTER)

add_textbox(slide, 0.5, 4.2, 12.3, 0.6,
            "Reference: Park's Textbook of Preventive and Social Medicine (20th Edition)",
            font_size=14, italic=True, color=LIGHT_BLUE,
            align=PP_ALIGN.CENTER)

add_textbox(slide, 0.5, 4.8, 12.3, 0.35,
            "Pages 619 – 630  |  Chapter: Child Health",
            font_size=13, italic=True, color=LIGHT_BLUE,
            align=PP_ALIGN.CENTER)

# SAVE
from io import BytesIO
buf = BytesIO()
prs.save(buf)
with open("/tmp/workspace/psm-seminar/PSM_Seminar_Infancy_Neonatal_LBW_Feeding.pptx", "wb") as f:
    f.write(buf.getvalue())

print(f"DONE! Total slides: {len(prs.slides)}")