from reportlab.lib.pagesizes import A4
from reportlab.lib import colors
from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle
from reportlab.lib.units import mm, cm
from reportlab.platypus import (
    SimpleDocTemplate, Paragraph, Spacer, Table, TableStyle,
    HRFlowable, KeepTogether
)
from reportlab.lib.enums import TA_CENTER, TA_LEFT, TA_JUSTIFY
from reportlab.platypus import PageBreak

OUTPUT = "/tmp/workspace/ayurveda-guide/Ayurvedic_Appetite_Vatis_Guide.pdf"

# ── Colour palette ──────────────────────────────────────────────────────────
SAFFRON    = colors.HexColor("#C45C00")
DEEP_GREEN = colors.HexColor("#2E6B3E")
GOLD       = colors.HexColor("#D4A017")
LIGHT_BG   = colors.HexColor("#FFF8F0")
HEADER_BG  = colors.HexColor("#F5ECD7")
ROW_ALT    = colors.HexColor("#FEF6E8")
WHITE      = colors.white
DARK_TEXT  = colors.HexColor("#2C2C2C")
WARN_RED   = colors.HexColor("#B22222")
WARN_BG    = colors.HexColor("#FFF0F0")
NOTE_BG    = colors.HexColor("#E8F5E9")

doc = SimpleDocTemplate(
    OUTPUT,
    pagesize=A4,
    rightMargin=2*cm, leftMargin=2*cm,
    topMargin=2*cm, bottomMargin=2*cm,
    title="Ayurvedic Appetite Vatis – Dosing & Side Effects Guide",
    author="Orris Health Guide"
)

styles = getSampleStyleSheet()

# Custom styles
title_style = ParagraphStyle("Title2", parent=styles["Title"],
    fontSize=24, textColor=SAFFRON, spaceAfter=4,
    fontName="Helvetica-Bold", alignment=TA_CENTER)

subtitle_style = ParagraphStyle("Subtitle", parent=styles["Normal"],
    fontSize=11, textColor=DEEP_GREEN, spaceAfter=2,
    fontName="Helvetica-Oblique", alignment=TA_CENTER)

h1 = ParagraphStyle("H1", parent=styles["Heading1"],
    fontSize=15, textColor=WHITE, fontName="Helvetica-Bold",
    spaceBefore=14, spaceAfter=6, leftIndent=0)

h2 = ParagraphStyle("H2", parent=styles["Heading2"],
    fontSize=12, textColor=SAFFRON, fontName="Helvetica-Bold",
    spaceBefore=10, spaceAfter=4)

body = ParagraphStyle("Body", parent=styles["Normal"],
    fontSize=9.5, textColor=DARK_TEXT, leading=14,
    spaceAfter=4, fontName="Helvetica", alignment=TA_JUSTIFY)

bullet = ParagraphStyle("Bullet", parent=body,
    leftIndent=14, bulletIndent=4, spaceAfter=3,
    bulletFontName="Helvetica", bulletFontSize=9.5)

small = ParagraphStyle("Small", parent=body, fontSize=8.5, textColor=colors.grey)

warn_style = ParagraphStyle("Warn", parent=body,
    fontSize=9, textColor=WARN_RED, fontName="Helvetica-Bold",
    leftIndent=8, rightIndent=8, spaceBefore=4, spaceAfter=4)

note_style = ParagraphStyle("Note", parent=body,
    fontSize=9, textColor=DEEP_GREEN, fontName="Helvetica-Oblique",
    leftIndent=8, rightIndent=8, spaceBefore=4, spaceAfter=4)

footer_style = ParagraphStyle("Footer", parent=styles["Normal"],
    fontSize=7.5, textColor=colors.grey, alignment=TA_CENTER)

# ── Helper: section header with coloured background ─────────────────────────
def section_header(title, color=SAFFRON):
    tbl = Table([[Paragraph(title, h1)]], colWidths=[17*cm])
    tbl.setStyle(TableStyle([
        ("BACKGROUND", (0,0), (-1,-1), color),
        ("ROUNDEDCORNERS", [4]),
        ("LEFTPADDING",  (0,0), (-1,-1), 10),
        ("RIGHTPADDING", (0,0), (-1,-1), 10),
        ("TOPPADDING",   (0,0), (-1,-1), 6),
        ("BOTTOMPADDING",(0,0), (-1,-1), 6),
    ]))
    return tbl

def warning_box(text):
    tbl = Table([[Paragraph(text, warn_style)]], colWidths=[17*cm])
    tbl.setStyle(TableStyle([
        ("BACKGROUND", (0,0), (-1,-1), WARN_BG),
        ("BOX", (0,0), (-1,-1), 1, WARN_RED),
        ("LEFTPADDING",  (0,0), (-1,-1), 8),
        ("TOPPADDING",   (0,0), (-1,-1), 6),
        ("BOTTOMPADDING",(0,0), (-1,-1), 6),
    ]))
    return tbl

def note_box(text):
    tbl = Table([[Paragraph(text, note_style)]], colWidths=[17*cm])
    tbl.setStyle(TableStyle([
        ("BACKGROUND", (0,0), (-1,-1), NOTE_BG),
        ("BOX", (0,0), (-1,-1), 1, DEEP_GREEN),
        ("LEFTPADDING",  (0,0), (-1,-1), 8),
        ("TOPPADDING",   (0,0), (-1,-1), 6),
        ("BOTTOMPADDING",(0,0), (-1,-1), 6),
    ]))
    return tbl

# ── Table builder ─────────────────────────────────────────────────────────────
def make_table(headers, rows, col_widths):
    hdr_cells = [Paragraph(f"<b>{h}</b>", ParagraphStyle("TH", parent=body,
                  fontSize=9, textColor=WHITE, fontName="Helvetica-Bold",
                  alignment=TA_CENTER)) for h in headers]
    data = [hdr_cells]
    for i, row in enumerate(rows):
        styled = [Paragraph(cell, ParagraphStyle("TD", parent=body,
                    fontSize=9, alignment=TA_LEFT)) for cell in row]
        data.append(styled)

    t = Table(data, colWidths=col_widths, repeatRows=1)
    row_colors = []
    for i in range(1, len(rows)+1):
        bg = ROW_ALT if i % 2 == 0 else WHITE
        row_colors.append(("BACKGROUND", (0, i), (-1, i), bg))

    t.setStyle(TableStyle([
        ("BACKGROUND",    (0,0), (-1,0), DEEP_GREEN),
        ("TEXTCOLOR",     (0,0), (-1,0), WHITE),
        ("FONTNAME",      (0,0), (-1,0), "Helvetica-Bold"),
        ("FONTSIZE",      (0,0), (-1,0), 9),
        ("ROWBACKGROUND", (0,1), (-1,-1), [WHITE, ROW_ALT]),
        ("GRID",          (0,0), (-1,-1), 0.4, colors.HexColor("#CCCCCC")),
        ("LINEBELOW",     (0,0), (-1,0), 1.5, GOLD),
        ("TOPPADDING",    (0,0), (-1,-1), 5),
        ("BOTTOMPADDING", (0,0), (-1,-1), 5),
        ("LEFTPADDING",   (0,0), (-1,-1), 6),
        ("RIGHTPADDING",  (0,0), (-1,-1), 6),
        ("VALIGN",        (0,0), (-1,-1), "MIDDLE"),
        *row_colors,
    ]))
    return t

# ════════════════════════════════════════════════════════════════════════════
# CONTENT
# ════════════════════════════════════════════════════════════════════════════
story = []

# ── Cover / Title ─────────────────────────────────────────────────────────
story.append(Spacer(1, 1.2*cm))
story.append(Paragraph("🌿 Ayurvedic Appetite Vatis", title_style))
story.append(Paragraph("Complete Guide to Dosing, Side Effects & Safe Use", subtitle_style))
story.append(Spacer(1, 3*mm))
story.append(HRFlowable(width="100%", thickness=2, color=GOLD, spaceAfter=6))
story.append(Paragraph("Prepared for Educational Reference · July 2026", small))
story.append(Spacer(1, 8*mm))

# ── Introduction ──────────────────────────────────────────────────────────
story.append(section_header("Introduction: Agni & Appetite in Ayurveda", DEEP_GREEN))
story.append(Spacer(1, 4*mm))
story.append(Paragraph(
    "In Ayurveda, poor appetite (Aruchi) and weak digestion (Agnimandya) result from an imbalance "
    "in <b>Agni</b> — the digestive fire. Vati (tablet) formulations are classical preparations that "
    "concentrate multiple herbs to rekindle Agni, eliminate Ama (undigested toxins), and restore "
    "natural hunger signals. This guide covers the five most important Vatis used for appetite stimulation, "
    "with complete dosing schedules and safety information.", body))
story.append(Spacer(1, 6*mm))

# ── Quick Reference Table ──────────────────────────────────────────────────
story.append(section_header("Quick Reference: All 5 Vatis at a Glance"))
story.append(Spacer(1, 4*mm))

qr_headers = ["Vati Name", "Primary Use", "Dose", "Best Taken With", "Dosha"]
qr_rows = [
    ["Chitrakadi Vati",  "Appetite stimulant (Deepana)", "1–2 tabs, 2×/day", "Warm water / buttermilk", "Vata-Kapha"],
    ["Kankayan Vati",    "Piles, bloating, appetite",    "1–2 tabs, 1–2×/day", "Buttermilk / milk",     "Vata-Kapha"],
    ["Agnitundi Vati",   "Strong digestive fire",        "1–2 tabs, 2×/day",   "Warm water",            "All 3 Doshas"],
    ["Hingwashtak Churna\n(powder)", "Gas, bloating, appetite", "¼–½ tsp, 2×/day", "Mixed in first bite of food with ghee", "Vata"],
    ["Trikatu Churna\n(powder)", "Kindle Agni, metabolism",   "¼–½ tsp, 2×/day",  "Warm water or honey",   "Kapha-Vata"],
]
story.append(make_table(qr_headers, qr_rows, [3.5*cm, 3.8*cm, 3*cm, 3.5*cm, 3*cm]))
story.append(Spacer(1, 8*mm))

# ══════════════════════════════════════════
# VATI 1: CHITRAKADI VATI
# ══════════════════════════════════════════
story.append(section_header("1.  Chitrakadi Vati"))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Classical Reference:</b> Ashtanga Hridayam, Chakradatta", body))
story.append(Paragraph(
    "Chitrakadi Vati is considered the <b>best single Vati for appetite stimulation</b> (Deepana). "
    "It directly kindles Agni, promotes secretion of digestive enzymes, and clears Ama. "
    "It is effective for all three Dosha types of Agnimandya.", body))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Key Ingredients</b>", h2))
ing_headers = ["Ingredient", "Sanskrit", "Action"]
ing_rows1 = [
    ["Leadwort root",   "Chitraka",        "Main Deepana herb; strong digestive stimulant"],
    ["Long pepper",     "Pippali",         "Rejuvenates Agni; bioavailability enhancer"],
    ["Dry ginger",      "Shunthi",         "Carminative; reduces nausea"],
    ["Black pepper",    "Maricha",         "Increases digestive enzymes"],
    ["Ajwain seeds",    "Yavani / Ajwain", "Reduces gas and bloating"],
    ["Rock salt",       "Saindhava Lavana","Stimulates taste receptors and HCl secretion"],
    ["Asafoetida",      "Hingu",           "Carminative; anti-spasmodic"],
    ["Cumin",           "Jeeraka",         "Digestive; reduces flatulence"],
]
story.append(make_table(ing_headers, ing_rows1, [4*cm, 4*cm, 9*cm]))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Dosing Schedule</b>", h2))
dose_headers = ["Patient Group", "Dose", "Frequency", "Timing", "Anupana (Co-drink)"]
dose_rows1 = [
    ["Adult",         "1–2 tablets (250–500 mg each)", "2 times/day", "Before meals (15–20 min)", "Warm water or buttermilk"],
    ["Elderly (>60)", "1 tablet",                      "2 times/day", "Before meals",             "Warm water with ginger"],
    ["Child (>12 yrs)","½–1 tablet",                   "1–2 times/day","Before main meal",         "Warm water"],
    ["Pregnancy",     "<b>AVOID</b>",                  "–",            "–",                        "Consult Ayurvedic physician"],
]
story.append(make_table(dose_headers, dose_rows1, [3*cm, 4.5*cm, 3*cm, 3.5*cm, 3.5*cm]))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Side Effects</b>", h2))
se_headers = ["Side Effect", "Severity", "Onset", "Management"]
se_rows1 = [
    ["Burning sensation in stomach", "Mild–Moderate", "Early use",     "Reduce dose; take after meals"],
    ["Increased thirst / heat",      "Mild",          "Common",        "Drink cool water; reduce dose"],
    ["Loose stools / diarrhoea",     "Mild",          "High doses",    "Reduce to 1 tablet/day"],
    ["Skin rash (rare)",             "Mild",          "Allergic",      "Stop immediately; consult doctor"],
    ["Elevated Pitta (acidity, reflux)", "Moderate",  "Pitta types",   "Avoid in summer; use with milk"],
]
story.append(make_table(se_headers, se_rows1, [4.5*cm, 3*cm, 3*cm, 7*cm]))
story.append(Spacer(1, 3*mm))
story.append(warning_box(
    "⚠ CONTRAINDICATIONS: Pregnancy, peptic ulcer, active gastritis, Pitta-dominant conditions, "
    "children under 12. Do not use during fever."))
story.append(Spacer(1, 8*mm))

# ══════════════════════════════════════════
# VATI 2: KANKAYAN VATI
# ══════════════════════════════════════════
story.append(section_header("2.  Kankayan Vati (Kankayana Gulika)"))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Classical Reference:</b> Ashtanga Hridayam (Chikitsa Sthana)", body))
story.append(Paragraph(
    "Kankayan Vati is a multi-herb formulation primarily for <b>piles, abdominal bloating, and "
    "intestinal disorders</b>. It improves appetite indirectly by removing the Ama and gut "
    "congestion that suppresses hunger. Its highest ingredient — Hingu (Asafoetida) at 144g — "
    "makes it a powerful carminative.", body))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Key Ingredients (16 herbs)</b>", h2))
ing_rows2 = [
    ["Asafoetida",          "Hingu",          "144 g — Strongest carminative; anti-spasmodic"],
    ["Barley kshara",       "Yavakshara",     "96 g — Alkaline; reduces acidity"],
    ["Garcinia",            "Amlavetasa",     "96 g — Digestive; liver tonic"],
    ["Leadwort",            "Chitraka",       "48 g — Deepana (Agni kindler)"],
    ["Ginger",              "Shringavera",    "48 g — Anti-nausea; digestive"],
    ["Sweet flag",          "Vacha",          "48 g — Nervine; enhances digestive tone"],
    ["Black pepper",        "Maricha",        "12 g — Enzyme stimulant"],
    ["Cumin",               "Ajaji",          "12 g — Carminative"],
    ["Nigella sativa",      "Upakunchika",    "24 g — Digestive; anti-worm"],
    ["Inula root",          "Pushkaramoola",  "48 g — Respiratory + digestive tonic"],
]
story.append(make_table(ing_headers, ing_rows2, [4*cm, 4*cm, 9*cm]))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Dosing Schedule</b>", h2))
dose_rows2 = [
    ["Adult (Vata type)",   "1–2 tablets", "1–2 times/day", "Before or after meals", "Buttermilk (Takra) or sour drinks"],
    ["Adult (Pitta type)",  "1 tablet",    "1–2 times/day", "After meals",            "Warm milk"],
    ["Adult (Kapha type)",  "1–2 tablets", "2 times/day",   "Before meals",           "Triphala decoction"],
    ["Elderly",             "1 tablet",    "Once daily",    "Before main meal",       "Warm buttermilk"],
    ["Children (<12)",      "<b>Not recommended</b>", "–",  "–",                      "–"],
]
story.append(make_table(dose_headers, dose_rows2, [3*cm, 4.5*cm, 3*cm, 3.5*cm, 3.5*cm]))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Side Effects</b>", h2))
se_rows2 = [
    ["Strong garlic/asafoetida smell in breath", "Mild",     "Always",        "Cosmetic only; chew fennel after"],
    ["Gastric burning (Pitta aggravation)",       "Moderate", "Pitta persons", "Take with milk; reduce dose"],
    ["Loose stools",                              "Mild",     "High dose",     "Reduce to once daily"],
    ["Headache (Vacha effect)",                   "Mild",     "Sensitive users","Reduce dose; stop if persists"],
    ["Excessive dryness / thirst",                "Mild",     "Vata types",    "Increase water intake"],
]
story.append(make_table(se_headers, se_rows2, [4.5*cm, 3*cm, 3*cm, 7*cm]))
story.append(Spacer(1, 3*mm))
story.append(warning_box(
    "⚠ CONTRAINDICATIONS: Pregnancy, active peptic ulcer, children under 12. "
    "Trivrit (Operculina turpethum) in the formula has laxative properties — avoid in diarrhoea."))
story.append(Spacer(1, 8*mm))

# ══════════════════════════════════════════
# VATI 3: AGNITUNDI VATI
# ══════════════════════════════════════════
story.append(PageBreak())
story.append(section_header("3.  Agnitundi Vati"))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Classical Reference:</b> Sharangadhara Samhita, Bhaishajya Ratnavali", body))
story.append(Paragraph(
    "Agnitundi Vati is a <b>strong digestive fire stimulant</b> containing Vatsanabha (Aconite) "
    "which is purified before use (Shodhita). It is used when appetite is severely reduced and "
    "conventional herbs have failed. Should only be used under guidance due to Vatsanabha content.", body))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Key Ingredients</b>", h2))
ing_rows3 = [
    ["Purified Aconite",    "Shodhita Vatsanabha", "Strong Deepana; analgesic (detoxified)"],
    ["Dry ginger",          "Shunthi",             "Digestive stimulant"],
    ["Black pepper",        "Maricha",             "Enzyme activator"],
    ["Long pepper",         "Pippali",             "Bioenhancer; Agni kindler"],
    ["Asafoetida",          "Hingu",               "Carminative"],
    ["Rock salt",           "Saindhava",           "Digestive enhancer"],
    ["Borax",               "Tankana Bhasma",      "Aids fat digestion; carminative"],
]
story.append(make_table(ing_headers, ing_rows3, [4*cm, 4*cm, 9*cm]))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Dosing Schedule</b>", h2))
dose_rows3 = [
    ["Adult",               "1–2 tablets (125 mg each)", "2 times/day", "Before meals",   "Warm water or ginger juice"],
    ["Elderly",             "1 tablet",                  "Once daily",  "Before main meal","Warm water"],
    ["Children",            "<b>Not recommended</b>",    "–",           "–",               "–"],
    ["Pregnancy/Lactation", "<b>STRICTLY AVOID</b>",     "–",           "–",               "–"],
]
story.append(make_table(dose_headers, dose_rows3, [3*cm, 4.5*cm, 3*cm, 3.5*cm, 3.5*cm]))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Side Effects</b>", h2))
se_rows3 = [
    ["Burning / heat sensation",     "Moderate",      "Common at start",   "Reduce dose; take with cold milk"],
    ["Numbness (Vatsanabha effect)", "Moderate–Severe","Overdose",          "STOP immediately; seek medical help"],
    ["Palpitations",                 "Severe",         "Overdose",          "STOP; emergency if persistent"],
    ["Excessive sweating",           "Mild–Moderate",  "Pitta aggravation", "Reduce dose"],
    ["Nausea / vomiting",            "Mild",           "Empty stomach use", "Always take after a small snack"],
]
story.append(make_table(se_headers, se_rows3, [4.5*cm, 3*cm, 3*cm, 7*cm]))
story.append(Spacer(1, 3*mm))
story.append(warning_box(
    "⚠ IMPORTANT: Contains Vatsanabha (Aconitum ferox) — a powerful herb that must be "
    "PURIFIED (Shodhita) before use. NEVER exceed recommended dose. Strictly contraindicated "
    "in pregnancy, lactation, children, hypertension, and cardiac conditions. "
    "Use ONLY under supervision of a qualified Ayurvedic physician."))
story.append(Spacer(1, 8*mm))

# ══════════════════════════════════════════
# VATI 4: HINGWASHTAK CHURNA (powder)
# ══════════════════════════════════════════
story.append(section_header("4.  Hingwashtak Churna (Powder)"))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Classical Reference:</b> Ashtanga Hridayam, Bhaishajya Ratnavali", body))
story.append(Paragraph(
    "Though technically a Churna (powder) rather than a Vati (tablet), Hingwashtak is included "
    "here as it is the <b>most widely used Ayurvedic digestive powder</b> for appetite and gas. "
    "It combines 8 key herbs, all focused on Vata-type digestive disorders.", body))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>8 Key Ingredients (Ashta = 8)</b>", h2))
ing_rows4 = [
    ["Asafoetida",    "Hingu",         "Principal ingredient; strongest carminative in Ayurveda"],
    ["Dry ginger",    "Shunthi",       "Deepana; anti-nausea"],
    ["Black pepper",  "Maricha",       "Digestive enzyme stimulant"],
    ["Long pepper",   "Pippali",       "Agni kindler; bioenhancer"],
    ["Ajwain",        "Yavani",        "Gas relief; antibacterial"],
    ["Rock salt",     "Saindhava",     "Stimulates digestive juices"],
    ["Black cumin",   "Krishna Jeera", "Carminative; antispasmodic"],
    ["Cumin",         "Shweta Jeera",  "Digestive; anti-flatulent"],
]
story.append(make_table(ing_headers, ing_rows4, [4*cm, 4*cm, 9*cm]))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Dosing Schedule</b>", h2))
dose_rows4 = [
    ["Adult",            "1/4–1/2 tsp (1–3 g)", "2–3 times/day", "Before or with meals",  "Mixed in first bite of food with ghee"],
    ["Elderly",          "1/4 tsp (1 g)",        "2 times/day",  "Before main meals",      "With warm ghee or buttermilk"],
    ["Child (>8 yrs)",   "Pinch (250–500 mg)",   "1–2 times/day","With meals",             "Mixed in food"],
    ["Pregnancy",        "<b>Low dose only</b>", "1 time/day",   "After consulting doctor","With food — avoid high dose"],
]
story.append(make_table(dose_headers, dose_rows4, [3*cm, 4.5*cm, 3*cm, 3.5*cm, 3.5*cm]))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Side Effects</b>", h2))
se_rows4 = [
    ["Body odour / bad breath (Hingu)", "Mild",     "Always",          "Chew fennel; cosmetic only"],
    ["Excess heat / thirst",            "Mild",     "Summer use",      "Reduce dose; avoid in Pitta season"],
    ["Gastric irritation",              "Mild",     "High dose",       "Reduce to 1/4 tsp; take with ghee"],
    ["Loose stools",                    "Mild",     "High dose",       "Reduce dose; add more ghee"],
    ["Headache",                        "Rare",     "Sensitive users", "Stop; try Chitrakadi Vati instead"],
]
story.append(make_table(se_headers, se_rows4, [4.5*cm, 3*cm, 3*cm, 7*cm]))
story.append(Spacer(1, 3*mm))
story.append(note_box(
    "✔ TIP: The traditional way to take Hingwashtak is to mix it with the first ball of rice or "
    "chapati with a drop of ghee. This activates the herbs immediately before the meal starts."))
story.append(Spacer(1, 8*mm))

# ══════════════════════════════════════════
# VATI 5: TRIKATU CHURNA
# ══════════════════════════════════════════
story.append(section_header("5.  Trikatu Churna (Three Peppers Powder)"))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Classical Reference:</b> Charaka Samhita, Ashtanga Hridayam (foundational formula)", body))
story.append(Paragraph(
    "Trikatu is the simplest and most fundamental Ayurvedic digestive formula. It is the "
    "<b>gold standard Deepana (Agni-kindling) preparation</b>, used as a standalone remedy and "
    "as an ingredient in dozens of other formulations including Chitrakadi and Kankayan Vati. "
    "Research published in PMC confirms Trikatu as the best standard Deepana group.", body))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>3 Ingredients in Equal Parts</b>", h2))
ing_rows5 = [
    ["Dry ginger root",  "Shunthi (Zingiber officinale)",  "Deepana, Pachana; anti-nausea; increases digestive secretions"],
    ["Black pepper",     "Maricha (Piper nigrum)",         "Stimulates lipase, amylase; piperine enhances absorption"],
    ["Long pepper",      "Pippali (Piper longum)",         "Strongest Agni kindler; rejuvenates Vata and Kapha"],
]
story.append(make_table(ing_headers, ing_rows5, [4*cm, 5*cm, 8*cm]))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Dosing Schedule</b>", h2))
dose_rows5 = [
    ["Adult",            "1/4–1/2 tsp (1–3 g)", "2–3 times/day", "15–20 min before meals", "Warm water, honey, or ginger tea"],
    ["Elderly",          "1/4 tsp (1 g)",        "2 times/day",  "Before main meals",       "Warm water with honey"],
    ["Child (>10 yrs)",  "1/8 tsp (500 mg)",     "Once daily",   "Before main meal",        "Warm water with honey"],
    ["Pregnancy",        "<b>Avoid high dose</b>","Low dose only","After food",              "Consult physician — piperine concerns"],
    ["Kapha body type",  "1/2 tsp",              "3 times/day",  "Before every meal",       "Warm water — very effective"],
]
story.append(make_table(dose_headers, dose_rows5, [3*cm, 4.5*cm, 3*cm, 3.5*cm, 3.5*cm]))
story.append(Spacer(1, 4*mm))

story.append(Paragraph("<b>Side Effects</b>", h2))
se_rows5 = [
    ["Acidity / heartburn",     "Moderate",  "Pitta types",     "Take after meals; use with milk; avoid if peptic ulcer"],
    ["Burning mouth / throat",  "Mild",      "High dose",       "Reduce dose; take with honey"],
    ["Excessive sweating",      "Mild",      "Common in summer","Avoid in hot weather for Pitta types"],
    ["Skin sensitivity",        "Mild–Rare", "Piperine effect", "Apply coconut oil to face before going out"],
    ["Drug interaction risk",   "Moderate",  "With medications","Piperine increases drug absorption — inform your doctor"],
]
story.append(make_table(se_headers, se_rows5, [4.5*cm, 3*cm, 3*cm, 7*cm]))
story.append(Spacer(1, 3*mm))
story.append(warning_box(
    "⚠ DRUG INTERACTION: Piperine in Trikatu significantly increases bioavailability of many drugs "
    "(phenytoin, propranolol, theophylline, rifampicin, metronidazole). If you take prescription "
    "medications, inform your doctor before using Trikatu regularly."))
story.append(Spacer(1, 8*mm))

# ══════════════════════════════════════════
# COMPARATIVE SELECTION GUIDE
# ══════════════════════════════════════════
story.append(PageBreak())
story.append(section_header("Which Vati Should You Choose?", DEEP_GREEN))
story.append(Spacer(1, 4*mm))

choose_headers = ["Your Symptom Profile", "Best Choice", "Second Choice"]
choose_rows = [
    ["Pure loss of appetite, no other symptoms",        "Chitrakadi Vati",    "Trikatu Churna"],
    ["Appetite loss + gas + bloating",                  "Hingwashtak Churna", "Kankayan Vati"],
    ["Appetite loss + piles / hemorrhoids",             "Kankayan Vati",      "Hingwashtak Churna"],
    ["Severe Agnimandya (no response to other herbs)",  "Agnitundi Vati*",    "Chitrakadi Vati"],
    ["Appetite loss + obesity / Kapha body",            "Trikatu Churna",     "Chitrakadi Vati"],
    ["Appetite loss + constipation",                    "Chitrakadi Vati",    "Triphala + Trikatu"],
    ["Appetite loss in elderly / weak digestion",       "Hingwashtak Churna", "Chitrakadi Vati"],
    ["Appetite loss during travel / irregular meals",   "Trikatu Churna",     "Chitrakadi Vati"],
]
story.append(make_table(choose_headers, choose_rows, [7*cm, 5*cm, 5*cm]))
story.append(Spacer(1, 3*mm))
story.append(Paragraph("* Agnitundi Vati should only be used under qualified Ayurvedic physician supervision.", small))
story.append(Spacer(1, 8*mm))

# ══════════════════════════════════════════
# GENERAL SAFETY GUIDELINES
# ══════════════════════════════════════════
story.append(section_header("General Safety Guidelines"))
story.append(Spacer(1, 4*mm))

guidelines = [
    ("<b>Start Low, Go Slow:</b> Always begin with the lowest recommended dose and increase only if well-tolerated after 3–5 days.", bullet),
    ("<b>Course Duration:</b> Most Vatis are used for 4–8 weeks. Do not self-medicate for more than 8 weeks without consulting an Ayurvedic practitioner.", bullet),
    ("<b>Seasonal Caution:</b> Hot-potency Vatis (Trikatu, Agnitundi) should be used cautiously in summer (Grishma Ritu) as they aggravate Pitta.", bullet),
    ("<b>Pregnancy & Lactation:</b> Agnitundi Vati is strictly contraindicated. All other Vatis should be used only under medical supervision.", bullet),
    ("<b>Children:</b> Agnitundi Vati and Kankayan Vati are not recommended for children under 12. All others require reduced paediatric dosing.", bullet),
    ("<b>Drug Interactions:</b> Piperine (in Trikatu, Chitrakadi) enhances absorption of pharmaceutical drugs. Inform your doctor if on any medications.", bullet),
    ("<b>Pitta Constitution:</b> Individuals with Pitta-dominant constitution or peptic ulcer should use these herbs with caution or switch to milk as Anupana.", bullet),
    ("<b>Diet:</b> Avoid cold, heavy, oily, and processed foods while taking these Vatis. Warm, light, easily digestible food supports recovery of Agni.", bullet),
    ("<b>Stop If:</b> You experience persistent burning, palpitations, numbness, or vomiting. Seek medical attention for severe reactions.", bullet),
]
for text, style in guidelines:
    story.append(Paragraph(f"• {text}", style))
    story.append(Spacer(1, 2*mm))

story.append(Spacer(1, 6*mm))
story.append(note_box(
    "✔ BEST PRACTICE: Chew a small piece of fresh ginger with a pinch of rock salt 15–20 minutes "
    "before meals. This simple practice, combined with any of the Vatis above, produces the best "
    "results for Agnimandya and restoring appetite."))
story.append(Spacer(1, 8*mm))

# ══════════════════════════════════════════
# DISCLAIMER
# ══════════════════════════════════════════
story.append(HRFlowable(width="100%", thickness=1, color=GOLD, spaceBefore=4, spaceAfter=6))
story.append(Paragraph(
    "<b>Disclaimer:</b> This guide is for educational purposes only. It does not constitute "
    "medical advice. Ayurvedic formulations can interact with medications and may not be suitable "
    "for all individuals. Always consult a qualified Ayurvedic physician or healthcare provider "
    "before starting any herbal treatment, especially if you have a chronic medical condition, "
    "are pregnant, or are taking prescription medications. Persistent loss of appetite lasting "
    "more than 2–3 weeks warrants professional medical evaluation to rule out underlying causes.",
    ParagraphStyle("Disc", parent=small, fontSize=8, textColor=colors.HexColor("#555555"),
                   alignment=TA_JUSTIFY)))

# ── Build ─────────────────────────────────────────────────────────────────
doc.build(story)
print("PDF created successfully:", OUTPUT)