Paramedical EMT Anatomy - Complete Study Notes

from reportlab.lib.pagesizes import A1, landscape
from reportlab.lib import colors
from reportlab.lib.units import cm, mm
from reportlab.platypus import (
    SimpleDocTemplate, Table, TableStyle, Paragraph, Spacer,
    HRFlowable, KeepTogether
)
from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle
from reportlab.lib.enums import TA_CENTER, TA_LEFT
from reportlab.platypus import Frame, PageTemplate
from reportlab.pdfgen import canvas
from reportlab.platypus.doctemplate import BaseDocTemplate, PageTemplate
from reportlab.platypus import Frame
import os

OUTPUT = "/tmp/workspace/emt-anatomy-poster/EMT_Anatomy_Quick_Reference.pdf"

# ── Colour palette ───────────────────────────────────────────────────────────
C_HEADER    = colors.HexColor("#1B3A6B")   # deep navy
C_RED       = colors.HexColor("#C0392B")   # danger red
C_ORANGE    = colors.HexColor("#D35400")   # warning orange
C_GREEN     = colors.HexColor("#1A7A4A")   # clinical green
C_BLUE      = colors.HexColor("#1F6BAE")   # mid blue
C_PURPLE    = colors.HexColor("#6C3483")   # purple
C_TEAL      = colors.HexColor("#148F77")   # teal
C_DARK_GRAY = colors.HexColor("#2C3E50")
C_MID_GRAY  = colors.HexColor("#7F8C8D")
C_LIGHT_BG  = colors.HexColor("#EAF2FB")   # very light blue bg
C_YELLOW_BG = colors.HexColor("#FEF9E7")
C_GREEN_BG  = colors.HexColor("#EAFAF1")
C_RED_BG    = colors.HexColor("#FDEDEC")
C_WHITE     = colors.white
C_ROW_ALT   = colors.HexColor("#F2F3F4")

PAGE_W, PAGE_H = landscape(A1)  # ~1189 x 841 pt
MARGIN = 0.8*cm

# ── Style helpers ─────────────────────────────────────────────────────────────
def make_styles():
    base = getSampleStyleSheet()

    def ps(name, parent="Normal", **kw):
        return ParagraphStyle(name, parent=base[parent], **kw)

    title   = ps("PTitle", fontSize=28, textColor=C_WHITE, alignment=TA_CENTER,
                 fontName="Helvetica-Bold", leading=34, spaceAfter=2)
    sub     = ps("PSub",   fontSize=11, textColor=C_WHITE, alignment=TA_CENTER,
                 fontName="Helvetica", leading=14)
    sh      = ps("SH",     fontSize=9,  textColor=C_WHITE, alignment=TA_CENTER,
                 fontName="Helvetica-Bold", leading=11)
    cell    = ps("Cell",   fontSize=7.5, textColor=C_DARK_GRAY,
                 fontName="Helvetica", leading=10, spaceAfter=0)
    cellb   = ps("CellB",  fontSize=7.5, textColor=C_DARK_GRAY,
                 fontName="Helvetica-Bold", leading=10)
    warn    = ps("Warn",   fontSize=7.5, textColor=C_RED,
                 fontName="Helvetica-Bold", leading=10)
    small   = ps("Small",  fontSize=6.8, textColor=C_MID_GRAY,
                 fontName="Helvetica", leading=9)
    footer  = ps("Footer", fontSize=7,   textColor=C_WHITE, alignment=TA_CENTER,
                 fontName="Helvetica", leading=9)
    return dict(title=title, sub=sub, sh=sh, cell=cell, cellb=cellb,
                warn=warn, small=small, footer=footer)

S = make_styles()

def hdr(text, bg=C_HEADER):
    return Paragraph(text, S["sh"])

def cell(text, bold=False, warn=False, color=None):
    style = S["warn"] if warn else (S["cellb"] if bold else S["cell"])
    if color:
        style = ParagraphStyle("tmp", parent=style, textColor=color)
    return Paragraph(text, style)

def small(text):
    return Paragraph(text, S["small"])

# ── Table builders ────────────────────────────────────────────────────────────
def section_style(header_bg=C_HEADER, row_bg=C_WHITE, alt_bg=C_ROW_ALT):
    return TableStyle([
        ("BACKGROUND",  (0,0), (-1,0), header_bg),
        ("TEXTCOLOR",   (0,0), (-1,0), C_WHITE),
        ("FONTNAME",    (0,0), (-1,0), "Helvetica-Bold"),
        ("FONTSIZE",    (0,0), (-1,0), 7.5),
        ("ALIGN",       (0,0), (-1,0), "CENTER"),
        ("VALIGN",      (0,0), (-1,-1), "MIDDLE"),
        ("ROWBACKGROUNDS", (0,1), (-1,-1), [row_bg, alt_bg]),
        ("FONTNAME",    (0,1), (-1,-1), "Helvetica"),
        ("FONTSIZE",    (0,1), (-1,-1), 7),
        ("GRID",        (0,0), (-1,-1), 0.4, colors.HexColor("#BDC3C7")),
        ("TOPPADDING",  (0,0), (-1,-1), 2.5),
        ("BOTTOMPADDING",(0,0),(-1,-1), 2.5),
        ("LEFTPADDING", (0,0), (-1,-1), 4),
        ("RIGHTPADDING",(0,0), (-1,-1), 4),
        ("ROWSPAN",     (0,0), (-1,0), 1),
    ])

# ════════════════════════════════════════════════════════════════════════
# SECTION BUILDERS  (each returns a KeepTogether flowable)
# ════════════════════════════════════════════════════════════════════════

def make_airway(w):
    data = [
        [cell("Structure", bold=True), cell("Location / Note", bold=True), cell("EMT Significance", bold=True)],
        [cell("Epiglottis"),     cell("Base of tongue / larynx"),       cell("Covers trachea during swallowing; visualised in laryngoscopy")],
        [cell("Thyroid cartilage"), cell("Anterior neck (Adam's apple)"),cell("Landmark for cricothyroid membrane below it")],
        [cell("Cricoid cartilage"), cell("Below thyroid cartilage"),    cell("Only complete ring; Sellick's manoeuvre applied here")],
        [cell("Cricothyroid membrane"), cell("Between thyroid & cricoid"), cell("Emergency surgical airway site (cric)", warn=True)],
        [cell("Trachea"),        cell("C6 to T4–5; ~12 cm"),           cell("C-rings open posteriorly; carina at T4–5")],
        [cell("Carina"),         cell("Tracheal bifurcation at T4–5"), cell("Right mainstem bronchus more vertical → FB/tube migration")],
        [cell("Right bronchus"), cell("Shorter, wider, steeper"),       cell("Endobronchial intubation risk; FB aspiration site")],
        [cell("Alveoli"),        cell("~300 million; type I & II cells"),cell("Gas exchange; surfactant prevents collapse (type II)")],
    ]
    t = Table(data, colWidths=[w*0.22, w*0.35, w*0.43])
    style = section_style(C_BLUE, C_WHITE, C_LIGHT_BG)
    style.add("BACKGROUND", (0,4), (-1,4), colors.HexColor("#FADBD8"))
    t.setStyle(style)
    return KeepTogether([
        Table([[cell("AIRWAY ANATOMY & LANDMARKS", bold=True, color=C_WHITE)]],
              colWidths=[w], style=TableStyle([("BACKGROUND",(0,0),(-1,-1),C_BLUE),
                ("TOPPADDING",(0,0),(-1,-1),4),("BOTTOMPADDING",(0,0),(-1,-1),4)])),
        t])

def make_cardio(w):
    data = [
        [cell("Chamber/Valve", bold=True), cell("Connects", bold=True), cell("Key Point", bold=True)],
        [cell("Right Atrium"),   cell("Receives SVC + IVC"),             cell("Contains SA node; receives deoxygenated blood")],
        [cell("Tricuspid valve"),cell("RA → RV"),                        cell("3 cusps; held by chordae tendineae")],
        [cell("Right Ventricle"),cell("Pumps → pulmonary artery"),       cell("Pulmonary circulation (low pressure)")],
        [cell("Left Atrium"),    cell("Receives 4 pulmonary veins"),     cell("Oxygenated blood from lungs")],
        [cell("Mitral valve"),   cell("LA → LV"),                        cell("2 cusps (bicuspid); most common valve diseased")],
        [cell("Left Ventricle"), cell("Pumps → Aorta"),                  cell("Thickest wall; systemic circulation (high pressure)")],
        [cell("SA Node"),        cell("Right atrium wall"),              cell("Primary pacemaker: 60–100 bpm", warn=True)],
        [cell("AV Node"),        cell("Atrio-ventricular junction"),     cell("Delays impulse 0.1 s; backup 40–60 bpm")],
        [cell("Bundle of His / BB"), cell("IVS → Purkinje fibers"),     cell("Rapid conduction; backup 20–40 bpm")],
    ]
    t = Table(data, colWidths=[w*0.25, w*0.32, w*0.43])
    t.setStyle(section_style(C_RED, C_WHITE, C_RED_BG))
    return KeepTogether([
        Table([[cell("CARDIOVASCULAR: CHAMBERS, VALVES & CONDUCTION", bold=True, color=C_WHITE)]],
              colWidths=[w], style=TableStyle([("BACKGROUND",(0,0),(-1,-1),C_RED),
                ("TOPPADDING",(0,0),(-1,-1),4),("BOTTOMPADDING",(0,0),(-1,-1),4)])),
        t])

def make_pulse_shock(w):
    left_data = [
        [cell("Pulse Site", bold=True), cell("Location", bold=True),     cell("Use", bold=True)],
        [cell("Radial"),    cell("Wrist, lateral"),                       cell("Routine; absent → SBP < 80 mmHg", warn=True)],
        [cell("Brachial"),  cell("Antecubital fossa"),                    cell("BP in children; absent → SBP < 70 mmHg")],
        [cell("Carotid"),   cell("Lateral to trachea, neck"),            cell("CPR check; absent → SBP < 60 mmHg", warn=True)],
        [cell("Femoral"),   cell("Inguinal crease, midpoint"),           cell("Large bore IV; absent → SBP < 70 mmHg")],
        [cell("Popliteal"), cell("Posterior knee"),                      cell("Lower limb perfusion")],
        [cell("Dorsalis pedis"), cell("Dorsum of foot"),                cell("Distal perfusion check")],
        [cell("Post. tibial"),   cell("Posterior medial malleolus"),    cell("Distal perfusion check")],
    ]
    lt = Table(left_data, colWidths=[w*0.22, w*0.35, w*0.43])
    lt.setStyle(section_style(C_RED, C_WHITE, C_RED_BG))

    right_data = [
        [cell("Shock Type", bold=True), cell("Mechanism", bold=True), cell("Signs", bold=True)],
        [cell("Hypovolaemic"), cell("↓ blood/fluid volume"),     cell("↑HR, ↓BP, cool/pale/clammy skin")],
        [cell("Cardiogenic"),  cell("Heart pump failure"),        cell("↑HR, ↓BP, crackles, JVD, oedema")],
        [cell("Distributive"), cell("Vasodilation (sepsis/anaphylaxis/neuro)"), cell("Warm flushed skin (early sepsis/anaphylaxis)")],
        [cell("Neurogenic"),   cell("T1–T4 SCI; sympathetic loss"), cell("Bradycardia + hypotension (warm skin)", warn=True)],
        [cell("Obstructive"),  cell("PE, tamponade, tension PTX"), cell("JVD + ↓BP; tension → tracheal deviation")],
    ]
    rt = Table(right_data, colWidths=[w*0.22, w*0.38, w*0.40])
    rt.setStyle(section_style(C_ORANGE, C_WHITE, C_YELLOW_BG))

    return KeepTogether([
        Table([[
            Table([[cell("PULSE SITES & SHOCK THRESHOLDS", bold=True, color=C_WHITE)]],
                  colWidths=[w*0.5-3], style=TableStyle([("BACKGROUND",(0,0),(-1,-1),C_RED),
                    ("TOPPADDING",(0,0),(-1,-1),4),("BOTTOMPADDING",(0,0),(-1,-1),4)])),
            Table([[cell("SHOCK CLASSIFICATION", bold=True, color=C_WHITE)]],
                  colWidths=[w*0.5-3], style=TableStyle([("BACKGROUND",(0,0),(-1,-1),C_ORANGE),
                    ("TOPPADDING",(0,0),(-1,-1),4),("BOTTOMPADDING",(0,0),(-1,-1),4)])),
        ]], colWidths=[w*0.5, w*0.5],
           style=TableStyle([("TOPPADDING",(0,0),(-1,-1),0),("BOTTOMPADDING",(0,0),(-1,-1),0),
                             ("LEFTPADDING",(0,0),(-1,-1),0),("RIGHTPADDING",(0,0),(-1,-1),0)])),
        Table([[lt, rt]], colWidths=[w*0.5, w*0.5],
              style=TableStyle([("VALIGN",(0,0),(-1,-1),"TOP"),
                                ("TOPPADDING",(0,0),(-1,-1),0),("BOTTOMPADDING",(0,0),(-1,-1),0),
                                ("LEFTPADDING",(0,0),(-1,-1),0),("RIGHTPADDING",(0,0),(-1,-1),2)])),
    ])

def make_spinal(w):
    data = [
        [cell("Level", bold=True), cell("Structures Supplied", bold=True), cell("Injury Consequence", bold=True)],
        [cell("C3–C5"),  cell("Phrenic nerve → Diaphragm"),            cell("Respiratory arrest ('C3,4,5 keeps diaphragm alive')", warn=True)],
        [cell("C5–C6"),  cell("Deltoid, biceps, wrist extensors"),      cell("Arm weakness; some hand function lost")],
        [cell("C7–C8"),  cell("Triceps, finger flexors/extensors"),     cell("Hand function impaired")],
        [cell("T1–T4"),  cell("Sympathetic chain, upper limbs"),        cell("Neurogenic shock (brady + hypotension)", warn=True)],
        [cell("T4"),     cell("Nipple line dermatome"),                  cell("Sensory level reference landmark")],
        [cell("T10"),    cell("Umbilicus dermatome"),                   cell("Sensory level reference landmark")],
        [cell("L1"),     cell("Inguinal region"),                       cell("Sensory level reference")],
        [cell("L2–L4"),  cell("Quadriceps, hip flexors"),               cell("Walking impaired; bowel/bladder intact")],
        [cell("S2–S4"),  cell("Perineum, bladder, bowel"),              cell("Cauda equina → bowel/bladder dysfunction", warn=True)],
    ]
    t = Table(data, colWidths=[w*0.15, w*0.40, w*0.45])
    style = section_style(C_PURPLE, C_WHITE, colors.HexColor("#F5EEF8"))
    style.add("BACKGROUND", (0,1), (-1,1), colors.HexColor("#FADBD8"))
    style.add("BACKGROUND", (0,2), (-1,2), colors.HexColor("#F5EEF8"))
    style.add("BACKGROUND", (0,8), (-1,8), colors.HexColor("#FDEDEC"))
    t.setStyle(style)
    return KeepTogether([
        Table([[cell("SPINAL CORD LEVELS & CLINICAL CONSEQUENCES", bold=True, color=C_WHITE)]],
              colWidths=[w], style=TableStyle([("BACKGROUND",(0,0),(-1,-1),C_PURPLE),
                ("TOPPADDING",(0,0),(-1,-1),4),("BOTTOMPADDING",(0,0),(-1,-1),4)])),
        t])

def make_burns(w):
    left_data = [
        [cell("Degree", bold=True), cell("Layers", bold=True), cell("Appearance", bold=True), cell("Pain", bold=True)],
        [cell("1st (Superficial)"),      cell("Epidermis only"),          cell("Red, dry"),          cell("Painful")],
        [cell("2nd (Partial thickness)"),cell("Epidermis + part dermis"),  cell("Blisters, moist"),  cell("Very painful", warn=True)],
        [cell("3rd (Full thickness)"),   cell("All dermis + epidermis"),  cell("White/leathery/charred"), cell("Painless (nerve loss)", color=C_MID_GRAY)],
    ]
    lt = Table(left_data, colWidths=[w*0.30, w*0.26, w*0.24, w*0.20])
    lt.setStyle(section_style(C_ORANGE, C_WHITE, C_YELLOW_BG))

    right_data = [
        [cell("Region", bold=True), cell("% BSA", bold=True)],
        [cell("Head + Neck"),        cell("9%")],
        [cell("Each Arm"),           cell("9% (each)")],
        [cell("Chest (anterior)"),   cell("9%")],
        [cell("Abdomen (anterior)"), cell("9%")],
        [cell("Upper back"),         cell("9%")],
        [cell("Lower back"),         cell("9%")],
        [cell("Each Thigh"),         cell("9% (each)")],
        [cell("Each Lower Leg+Foot"),cell("9% (each)")],
        [cell("Perineum"),           cell("1%", bold=True)],
        [cell("TOTAL"),              cell("100%", bold=True)],
    ]
    rt = Table(right_data, colWidths=[w*0.55, w*0.45])
    rt.setStyle(section_style(C_ORANGE, C_WHITE, C_YELLOW_BG))

    return KeepTogether([
        Table([[
            Table([[cell("BURNS CLASSIFICATION", bold=True, color=C_WHITE)]],
                  colWidths=[w*0.5-3], style=TableStyle([("BACKGROUND",(0,0),(-1,-1),C_ORANGE),
                    ("TOPPADDING",(0,0),(-1,-1),4),("BOTTOMPADDING",(0,0),(-1,-1),4)])),
            Table([[cell("RULE OF NINES", bold=True, color=C_WHITE)]],
                  colWidths=[w*0.5-3], style=TableStyle([("BACKGROUND",(0,0),(-1,-1),C_ORANGE),
                    ("TOPPADDING",(0,0),(-1,-1),4),("BOTTOMPADDING",(0,0),(-1,-1),4)])),
        ]], colWidths=[w*0.5, w*0.5],
           style=TableStyle([("TOPPADDING",(0,0),(-1,-1),0),("BOTTOMPADDING",(0,0),(-1,-1),0),
                             ("LEFTPADDING",(0,0),(-1,-1),0),("RIGHTPADDING",(0,0),(-1,-1),0)])),
        Table([[lt, rt]], colWidths=[w*0.5, w*0.5],
              style=TableStyle([("VALIGN",(0,0),(-1,-1),"TOP"),
                                ("TOPPADDING",(0,0),(-1,-1),0),("BOTTOMPADDING",(0,0),(-1,-1),0),
                                ("LEFTPADDING",(0,0),(-1,-1),0),("RIGHTPADDING",(0,0),(-1,-1),2)])),
    ])

def make_abdomen(w):
    data = [
        [cell("Quadrant", bold=True), cell("Key Organs", bold=True), cell("Clinical Alert", bold=True)],
        [cell("RUQ"),  cell("Liver, gallbladder, right kidney, hepatic flexure"), cell("Hepatic injury → massive haemorrhage; Murphy's sign (cholecystitis)")],
        [cell("LUQ"),  cell("Stomach, spleen, left kidney, splenic flexure"),     cell("Splenic rupture → haemorrhagic shock; Kehr's sign (referred L shoulder pain)")],
        [cell("RLQ"),  cell("Appendix, cecum, right ovary/tube, right ureter"),  cell("McBurney's point tenderness → appendicitis")],
        [cell("LLQ"),  cell("Sigmoid colon, left ovary/tube, left ureter"),      cell("Diverticulitis, ectopic pregnancy, AAA may radiate here")],
        [cell("Epigastric"), cell("Stomach, pancreas, aorta"),                   cell("AAA pulsatile mass; gastric ulcer; pancreatitis radiates to back", warn=True)],
        [cell("Periumbilical"),cell("Small bowel, aorta"),                       cell("Early appendicitis (migrates to RLQ); mesenteric ischaemia")],
    ]
    t = Table(data, colWidths=[w*0.18, w*0.40, w*0.42])
    t.setStyle(section_style(C_GREEN, C_WHITE, C_GREEN_BG))
    return KeepTogether([
        Table([[cell("ABDOMINAL QUADRANTS & CLINICAL ALERTS", bold=True, color=C_WHITE)]],
              colWidths=[w], style=TableStyle([("BACKGROUND",(0,0),(-1,-1),C_GREEN),
                ("TOPPADDING",(0,0),(-1,-1),4),("BOTTOMPADDING",(0,0),(-1,-1),4)])),
        t])

def make_cranial_nerves(w):
    data = [
        [cell("CN#", bold=True), cell("Name", bold=True), cell("Type", bold=True), cell("Function / EMT Use", bold=True)],
        [cell("I"),   cell("Olfactory"),         cell("S"),  cell("Smell")],
        [cell("II"),  cell("Optic"),             cell("S"),  cell("Vision; pupil afferent")],
        [cell("III"), cell("Oculomotor"),        cell("M"),  cell("Eye movement (most); pupil constriction — blown pupil = uncal herniation", warn=True)],
        [cell("IV"),  cell("Trochlear"),         cell("M"),  cell("Eye down-and-in")],
        [cell("V"),   cell("Trigeminal"),        cell("B"),  cell("Face sensation; corneal reflex afferent; mastication")],
        [cell("VI"),  cell("Abducens"),          cell("M"),  cell("Lateral eye movement")],
        [cell("VII"), cell("Facial"),            cell("B"),  cell("Facial expression; taste anterior 2/3 tongue")],
        [cell("VIII"),cell("Vestibulocochlear"), cell("S"),  cell("Hearing + balance")],
        [cell("IX"),  cell("Glossopharyngeal"),  cell("B"),  cell("Gag reflex (afferent); swallowing; taste posterior 1/3")],
        [cell("X"),   cell("Vagus"),             cell("B"),  cell("Parasympathetic heart/gut; ↓HR; gag reflex efferent; vasovagal syncope", warn=True)],
        [cell("XI"),  cell("Accessory"),         cell("M"),  cell("SCM + trapezius")],
        [cell("XII"), cell("Hypoglossal"),       cell("M"),  cell("Tongue movement; deviation → lesion side")],
    ]
    t = Table(data, colWidths=[w*0.07, w*0.22, w*0.08, w*0.63])
    style = section_style(C_TEAL, C_WHITE, colors.HexColor("#E8F8F5"))
    style.add("BACKGROUND", (0,4), (-1,4), colors.HexColor("#FADBD8"))
    style.add("BACKGROUND", (0,11), (-1,11), colors.HexColor("#FADBD8"))
    t.setStyle(style)
    return KeepTogether([
        Table([[cell("CRANIAL NERVES (S=Sensory M=Motor B=Both)", bold=True, color=C_WHITE)]],
              colWidths=[w], style=TableStyle([("BACKGROUND",(0,0),(-1,-1),C_TEAL),
                ("TOPPADDING",(0,0),(-1,-1),4),("BOTTOMPADDING",(0,0),(-1,-1),4)])),
        t])

def make_vital_signs(w):
    data = [
        [cell("Parameter", bold=True), cell("Adult Normal", bold=True), cell("Child (1–10 yr)", bold=True), cell("Infant (<1 yr)", bold=True), cell("Critical Alert", bold=True)],
        [cell("HR"),       cell("60–100 bpm"),  cell("70–120 bpm"),  cell("100–160 bpm"), cell("< 50 or > 150 adult = emergency", warn=True)],
        [cell("RR"),       cell("12–20 /min"),  cell("20–30 /min"),  cell("30–60 /min"),  cell("< 8 or > 30 adult = respiratory distress", warn=True)],
        [cell("SBP"),      cell("90–140 mmHg"), cell("80–110 mmHg"), cell("70–90 mmHg"),  cell("SBP < 90 = hypotension; < 60 = no carotid pulse")],
        [cell("SpO2"),     cell(">= 95%"),      cell(">= 95%"),      cell(">= 95%"),       cell("< 90% = hypoxia; < 85% = severe hypoxia", warn=True)],
        [cell("Temp"),     cell("36.5–37.5 °C"),cell("36.5–37.5 °C"),cell("36.5–37.5 °C"),cell("< 35 °C = hypothermia; > 38.5 °C = fever")],
        [cell("GCS"),      cell("15 (normal)"), cell("15 (normal)"), cell("Modified scale"),cell("< 8 = severe TBI; consider airway", warn=True)],
        [cell("Glucose"),  cell("4–7 mmol/L"),  cell("4–7 mmol/L"),  cell("3–6 mmol/L"),  cell("< 3 = hypoglycaemia; > 15 = hyperglycaemia")],
    ]
    t = Table(data, colWidths=[w*0.14, w*0.18, w*0.18, w*0.18, w*0.32])
    t.setStyle(section_style(C_DARK_GRAY, C_WHITE, C_LIGHT_BG))
    return KeepTogether([
        Table([[cell("VITAL SIGNS REFERENCE", bold=True, color=C_WHITE)]],
              colWidths=[w], style=TableStyle([("BACKGROUND",(0,0),(-1,-1),C_DARK_GRAY),
                ("TOPPADDING",(0,0),(-1,-1),4),("BOTTOMPADDING",(0,0),(-1,-1),4)])),
        t])

def make_body_cavities(w):
    data = [
        [cell("Cavity", bold=True), cell("Contents", bold=True), cell("Dividing Structure", bold=True)],
        [cell("Cranial"),   cell("Brain, cranial nerves, CSF"),             cell("Foramen magnum (↔ spinal canal)")],
        [cell("Spinal"),    cell("Spinal cord, nerve roots, CSF"),          cell("Vertebral column")],
        [cell("Thoracic"),  cell("Heart (mediastinum), lungs, great vessels, oesophagus, trachea"), cell("Diaphragm (↕ abdominal)")],
        [cell("Abdominal"), cell("Stomach, liver, spleen, SI, LI, kidneys, pancreas, aorta"),        cell("Pelvic inlet (↕ pelvic)")],
        [cell("Pelvic"),    cell("Bladder, rectum, uterus/ovaries (F), prostate (M)"),               cell("Pelvic floor muscles")],
        [cell("Pleural (x2)"), cell("Lung + pleural fluid; potential space"),                       cell("Mediastinum (separates left/right)")],
        [cell("Pericardial"), cell("Heart + pericardial fluid"),                                    cell("Fibrous pericardium")],
    ]
    t = Table(data, colWidths=[w*0.20, w*0.48, w*0.32])
    t.setStyle(section_style(C_HEADER, C_WHITE, C_LIGHT_BG))
    return KeepTogether([
        Table([[cell("BODY CAVITIES & CONTENTS", bold=True, color=C_WHITE)]],
              colWidths=[w], style=TableStyle([("BACKGROUND",(0,0),(-1,-1),C_HEADER),
                ("TOPPADDING",(0,0),(-1,-1),4),("BOTTOMPADDING",(0,0),(-1,-1),4)])),
        t])

def make_bones(w):
    left_data = [
        [cell("Bone Count", bold=True), cell("Value", bold=True)],
        [cell("Total adult bones"),    cell("206")],
        [cell("Axial skeleton"),       cell("80 bones")],
        [cell("Appendicular"),         cell("126 bones")],
        [cell("Cervical vertebrae"),   cell("7 (C1=Atlas, C2=Axis)")],
        [cell("Thoracic vertebrae"),   cell("12 (with ribs)")],
        [cell("Lumbar vertebrae"),     cell("5 (largest)")],
        [cell("Ribs"),                 cell("12 pairs: True 1-7 / False 8-10 / Floating 11-12")],
        [cell("Carpal bones"),         cell("8 (Scaphoid most fractured)")],
        [cell("Tarsal bones"),         cell("7 (Calcaneus = heel, largest)")],
    ]
    lt = Table(left_data, colWidths=[w*0.55, w*0.45])
    lt.setStyle(section_style(C_HEADER, C_WHITE, C_LIGHT_BG))

    right_data = [
        [cell("Joint Type", bold=True), cell("Example", bold=True), cell("Motion", bold=True)],
        [cell("Ball & socket"), cell("Hip, shoulder"),     cell("Multiaxial")],
        [cell("Hinge"),         cell("Elbow, knee, ankle"),cell("Uniaxial (flex/ext)")],
        [cell("Pivot"),         cell("C1–C2, radioulnar"), cell("Rotation only")],
        [cell("Condyloid"),     cell("Wrist"),             cell("Biaxial")],
        [cell("Saddle"),        cell("Thumb CMC"),         cell("Biaxial")],
        [cell("Gliding/Plane"), cell("Intercarpal"),       cell("Non-axial glide")],
    ]
    rt = Table(right_data, colWidths=[w*0.33, w*0.35, w*0.32])
    rt.setStyle(section_style(C_HEADER, C_WHITE, C_LIGHT_BG))

    return KeepTogether([
        Table([[
            Table([[cell("SKELETAL LANDMARKS", bold=True, color=C_WHITE)]],
                  colWidths=[w*0.4-3], style=TableStyle([("BACKGROUND",(0,0),(-1,-1),C_HEADER),
                    ("TOPPADDING",(0,0),(-1,-1),4),("BOTTOMPADDING",(0,0),(-1,-1),4)])),
            Table([[cell("JOINT TYPES", bold=True, color=C_WHITE)]],
                  colWidths=[w*0.6-3], style=TableStyle([("BACKGROUND",(0,0),(-1,-1),C_HEADER),
                    ("TOPPADDING",(0,0),(-1,-1),4),("BOTTOMPADDING",(0,0),(-1,-1),4)])),
        ]], colWidths=[w*0.4, w*0.6],
           style=TableStyle([("TOPPADDING",(0,0),(-1,-1),0),("BOTTOMPADDING",(0,0),(-1,-1),0),
                             ("LEFTPADDING",(0,0),(-1,-1),0),("RIGHTPADDING",(0,0),(-1,-1),0)])),
        Table([[lt, rt]], colWidths=[w*0.4, w*0.6],
              style=TableStyle([("VALIGN",(0,0),(-1,-1),"TOP"),
                                ("TOPPADDING",(0,0),(-1,-1),0),("BOTTOMPADDING",(0,0),(-1,-1),0),
                                ("LEFTPADDING",(0,0),(-1,-1),0),("RIGHTPADDING",(0,0),(-1,-1),2)])),
    ])

# ════════════════════════════════════════════════════════════════════════
# PAGE BACKGROUND + HEADER using canvas
# ════════════════════════════════════════════════════════════════════════
HEADER_HEIGHT = 2.0*cm

def draw_background(c, doc):
    w, h = PAGE_W, PAGE_H
    # dark navy header band
    c.setFillColor(C_HEADER)
    c.rect(0, h - HEADER_HEIGHT, w, HEADER_HEIGHT, fill=1, stroke=0)
    # red accent stripe
    c.setFillColor(C_RED)
    c.rect(0, h - HEADER_HEIGHT - 3, w, 3, fill=1, stroke=0)
    # title
    c.setFillColor(C_WHITE)
    c.setFont("Helvetica-Bold", 22)
    c.drawCentredString(w/2, h - 1.4*cm, "PARAMEDICAL EMT - ANATOMY QUICK REFERENCE POSTER")
    c.setFont("Helvetica", 10)
    c.drawCentredString(w/2, h - 1.85*cm,
        "Vital Structures, Landmarks & Clinical Decision Points  |  All Systems Overview")
    # footer band
    c.setFillColor(C_HEADER)
    c.rect(0, 0, w, 0.65*cm, fill=1, stroke=0)
    c.setFillColor(C_WHITE)
    c.setFont("Helvetica", 7)
    c.drawCentredString(w/2, 0.2*cm,
        "For educational use only  |  Paramedical EMT Anatomy  |  "
        "Red = Critical Action  |  Always follow local protocols")
    # subtle side borders
    c.setStrokeColor(C_RED)
    c.setLineWidth(3)
    c.line(MARGIN*0.4, HEADER_HEIGHT + 3, MARGIN*0.4, 0.65*cm)
    c.line(w - MARGIN*0.4, HEADER_HEIGHT + 3, w - MARGIN*0.4, 0.65*cm)

# ════════════════════════════════════════════════════════════════════════
# MAIN BUILD
# ════════════════════════════════════════════════════════════════════════
def build():
    doc = BaseDocTemplate(
        OUTPUT,
        pagesize=landscape(A1),
        leftMargin=MARGIN, rightMargin=MARGIN,
        topMargin=HEADER_HEIGHT + 0.5*cm + 3,
        bottomMargin=0.75*cm,
    )

    usable_w = PAGE_W - 2*MARGIN
    col_gap  = 0.35*cm
    # 3-column layout
    n_cols = 3
    col_w  = (usable_w - (n_cols-1)*col_gap) / n_cols

    frames = [
        Frame(MARGIN + i*(col_w + col_gap),
              doc.bottomMargin,
              col_w,
              PAGE_H - doc.topMargin - doc.bottomMargin,
              leftPadding=0, rightPadding=0, topPadding=0, bottomPadding=0,
              showBoundary=0)
        for i in range(n_cols)
    ]

    doc.addPageTemplates([PageTemplate(id="poster", frames=frames,
                                       onPage=draw_background)])

    # ── Content ordering ─────────────────────────────────────────────
    gap = Spacer(1, 0.22*cm)

    story = []
    # Column 1
    story.append(make_airway(col_w))
    story.append(gap)
    story.append(make_cardio(col_w))
    story.append(gap)
    story.append(make_pulse_shock(col_w))

    # Column 2
    story.append(make_spinal(col_w))
    story.append(gap)
    story.append(make_burns(col_w))
    story.append(gap)
    story.append(make_abdomen(col_w))
    story.append(gap)
    story.append(make_vital_signs(col_w))

    # Column 3
    story.append(make_cranial_nerves(col_w))
    story.append(gap)
    story.append(make_body_cavities(col_w))
    story.append(gap)
    story.append(make_bones(col_w))

    doc.build(story)
    print(f"PDF created: {OUTPUT}")

build()