const pptxgen = require("pptxgenjs");

const pres = new pptxgen();

// Custom A0-like poster layout (33.1" x 46.8" scaled down for PPTX; use wide ratio 1:1.4)
// We'll use 36" x 48" as custom inches (standard poster size)
pres.defineLayout({ name: "POSTER", width: 36, height: 48 });
pres.layout = "POSTER";
pres.title = "Rasayana Therapy in Long-term Asthma Control";
pres.author = "PG Scholar, Kaumarabhritya";

// ── COLOR PALETTE ──────────────────────────────────────────────────────────────
const C = {
  deepGreen:   "1B4332",  // dominant bg sections
  forestGreen: "2D6A4F",  // header / section titles
  midGreen:    "40916C",  // sub-headers
  lightGreen:  "74C69D",  // accents
  mintGreen:   "B7E4C7",  // light fills
  cream:       "F9F6EF",  // body bg
  gold:        "C9A84C",  // Sanskrit verse highlight
  darkText:    "1A1A1A",
  white:       "FFFFFF",
  amber:       "E9A825",  // table header
  rust:        "9B2226",  // conclusion accent
  slate:       "344E41",
};

const slide = pres.addSlide();

// ══════════════════════════════════════════════════════════════════════════════
// BACKGROUND
// ══════════════════════════════════════════════════════════════════════════════
slide.addShape(pres.ShapeType.rect, {
  x: 0, y: 0, w: 36, h: 48,
  fill: { color: C.cream },
  line: { color: C.cream }
});

// ══════════════════════════════════════════════════════════════════════════════
// HEADER BAND
// ══════════════════════════════════════════════════════════════════════════════
slide.addShape(pres.ShapeType.rect, {
  x: 0, y: 0, w: 36, h: 4.8,
  fill: { color: C.deepGreen },
  line: { color: C.deepGreen }
});
// Gold accent bar
slide.addShape(pres.ShapeType.rect, {
  x: 0, y: 4.8, w: 36, h: 0.18,
  fill: { color: C.gold },
  line: { color: C.gold }
});

// Main title
slide.addText("Rasayana Therapy in Long-term Asthma Control", {
  x: 0.5, y: 0.25, w: 35, h: 1.8,
  fontSize: 52, bold: true, color: C.white,
  fontFace: "Georgia", align: "center", valign: "middle",
});

// Subtitle / Dept
slide.addText("Tamaka Shwasa (Bronchial Asthma) — An Ayurvedic Evidence Review", {
  x: 0.5, y: 2.05, w: 35, h: 0.8,
  fontSize: 28, bold: false, color: C.lightGreen,
  fontFace: "Calibri", align: "center", valign: "middle",
});

// Author / Department
slide.addText("PG Scholar  |  Department of Kaumarabhritya  |  Institute of Ayurveda", {
  x: 0.5, y: 2.85, w: 35, h: 0.65,
  fontSize: 22, bold: false, color: C.mintGreen,
  fontFace: "Calibri", align: "center", valign: "middle",
});

// Sanskrit quote in header
slide.addText([
  { text: '"Yat jaramaranavyadhinashanaaya hitaahitam — ', options: { italic: true, color: C.gold } },
  { text: 'Rasayanam tad uktam..."', options: { italic: true, color: C.gold } },
  { text: '   [Charaka Samhita, Chi.1/1/7-8]', options: { italic: false, color: C.mintGreen, fontSize: 18 } },
], {
  x: 0.5, y: 3.6, w: 35, h: 0.9,
  fontSize: 20, align: "center", valign: "middle",
});

// ══════════════════════════════════════════════════════════════════════════════
// COLUMN SETUP  (3 columns)
//  Col1: x=0.3   w=10.8
//  Col2: x=12.6  w=10.8
//  Col3: x=24.9  w=10.8
// ══════════════════════════════════════════════════════════════════════════════
const TOP = 5.3;  // start y below header
const CW = 10.8;  // column width
const C1 = 0.3, C2 = 12.6, C3 = 24.9;

function sectionHeader(slide, x, y, w, text) {
  slide.addShape(pres.ShapeType.rect, {
    x, y, w, h: 0.55,
    fill: { color: C.forestGreen },
    line: { color: C.forestGreen },
    rectRadius: 0.06,
  });
  slide.addText(text, {
    x: x + 0.12, y: y, w: w - 0.24, h: 0.55,
    fontSize: 22, bold: true, color: C.white,
    fontFace: "Calibri", align: "left", valign: "middle", margin: 0
  });
}

function bodyText(slide, x, y, w, h, textArr, opts = {}) {
  slide.addText(textArr, {
    x, y, w, h,
    fontSize: opts.fontSize || 16,
    color: opts.color || C.darkText,
    fontFace: opts.fontFace || "Calibri",
    align: opts.align || "left",
    valign: "top",
    ...opts
  });
}

function cardBox(slide, x, y, w, h, fillColor, lineColor) {
  slide.addShape(pres.ShapeType.rect, {
    x, y, w, h,
    fill: { color: fillColor },
    line: { color: lineColor || fillColor, width: 1 },
    rectRadius: 0.08,
    shadow: { type: "outer", blur: 4, offset: 2, angle: 45, color: "AAAAAA", opacity: 0.3 }
  });
}

// ══════════════════════════════════════════════════════════════════════════════
// COLUMN 1 — Introduction + Tamaka Shwasa
// ══════════════════════════════════════════════════════════════════════════════
let y = TOP;

// 1. Introduction
sectionHeader(slide, C1, y, CW, "1. Introduction");
y += 0.65;
cardBox(slide, C1, y, CW, 3.6, C.mintGreen, C.lightGreen);
bodyText(slide, C1 + 0.15, y + 0.1, CW - 0.3, 3.4, [
  { text: "Bronchial Asthma", options: { bold: true } },
  { text: " is the most prevalent chronic respiratory disorder in children — globally affecting ", options: {} },
  { text: "~300 million people", options: { bold: true, color: C.rust } },
  { text: ".\n\nIn Ayurveda, it corresponds to ", options: {} },
  { text: "Tamaka Shwasa", options: { bold: true, color: C.forestGreen } },
  { text: " — a subtype of Shwasa Roga, classified as a ", options: {} },
  { text: "Yapya Vyadhi", options: { bold: true, italic: true } },
  { text: " (manageable but not permanently curable).\n\nModern therapy (bronchodilators, corticosteroids) provides control but is associated with:\n", options: {} },
  { text: "• Long-term steroid side effects in children\n• Persistent recurrence\n• Impaired quality of life\n\n", options: { color: C.rust } },
  { text: "Rasayana Chikitsa", options: { bold: true, color: C.forestGreen } },
  { text: " — one of the 8 branches (Ashtanga) of Ayurveda — offers a safe, immunomodulatory, disease-modifying long-term control strategy.", options: {} }
], { fontSize: 15, lineSpacingMultiple: 1.2 });
y += 3.7;

// 2. Tamaka Shwasa — Classical Understanding
sectionHeader(slide, C1, y, CW, "2. Tamaka Shwasa — Classical Understanding");
y += 0.65;
cardBox(slide, C1, y, CW, 1.5, "EDF6EE", C.lightGreen);
bodyText(slide, C1 + 0.12, y + 0.08, CW - 0.24, 1.4, [
  { text: "Etymology: ", options: { bold: true } },
  { text: "Tamaka = tamglanou (Panini) = darkness/suffocation. Patient experiences sense of darkness during nocturnal attacks.\n", options: {} },
  { text: "Pathology: ", options: { bold: true } },
  { text: "Vata-Kapha vitiation → Pranavaha & Udakavaha Srotas obstruction → Pratiloma Gati of Prana Vayu", options: {} }
], { fontSize: 15 });
y += 1.6;

// Samprapti flow
sectionHeader(slide, C1, y, CW, "Samprapti (Pathogenesis)");
y += 0.65;
const flowItems = ["Ruksha/Sheeta\nAhara-Vihara", "Vata\nPrakopa", "Prana Vayu\nVaishamya", "Pratiloma\nGati", "Kapha in\nPranavaha Srotas", "TAMAKA\nSHWASA"];
const arrowW = CW / 6.6;
for (let i = 0; i < flowItems.length; i++) {
  const bx = C1 + i * (arrowW + 0.12);
  const bc = i === flowItems.length - 1 ? C.rust : C.forestGreen;
  cardBox(slide, bx, y, arrowW, 0.9, bc, bc);
  slide.addText(flowItems[i], {
    x: bx, y: y, w: arrowW, h: 0.9,
    fontSize: 11, bold: i === flowItems.length - 1, color: C.white,
    fontFace: "Calibri", align: "center", valign: "middle"
  });
  if (i < flowItems.length - 1) {
    slide.addText("▶", { x: bx + arrowW, y: y + 0.2, w: 0.15, h: 0.5, fontSize: 14, color: C.midGreen, align: "center" });
  }
}
y += 1.05;

// Nidana table
sectionHeader(slide, C1, y, CW, "Nidana — Comparative Classical References");
y += 0.65;
const nidanaRows = [
  ["Hetu", "C.S.", "S.S.", "A.H.", "M.N."],
  ["Rukshana (dry food)", "✓", "✓", "—", "✓"],
  ["Sheeta Ahara (cold food)", "✓", "✓", "—", "✓"],
  ["Dhuma/Raja (smoke/dust)", "✓", "✓", "✓", "✓"],
  ["Ativyayama (excess exertion)", "✓", "✓", "—", "✓"],
  ["Sheeta Sthana (cold climate)", "✓", "—", "✓", "✓"],
];
const nidCW = [4.8, 1.4, 1.4, 1.4, 1.6];
const nidH = 0.4;
nidanaRows.forEach((row, ri) => {
  let cx = C1;
  row.forEach((cell, ci) => {
    const isHeader = ri === 0;
    const isCheck = cell === "✓";
    const isCross = cell === "—";
    cardBox(slide, cx, y + ri * nidH, nidCW[ci], nidH,
      isHeader ? C.amber : (ri % 2 === 0 ? C.white : "F0FAF4"), isHeader ? C.amber : "D0E8D8");
    slide.addText(cell, {
      x: cx, y: y + ri * nidH, w: nidCW[ci], h: nidH,
      fontSize: isHeader ? 14 : 13, bold: isHeader || ci === 0,
      color: isHeader ? C.darkText : (isCheck ? C.forestGreen : (isCross ? "AAAAAA" : C.darkText)),
      align: ci === 0 ? "left" : "center", valign: "middle",
      margin: ci === 0 ? [0, 0, 0, 6] : 0
    });
    cx += nidCW[ci];
  });
});
y += nidanaRows.length * nidH + 0.2;

// Types
sectionHeader(slide, C1, y, CW, "Types: Pratamaka & Santamaka Shwasa");
y += 0.65;
cardBox(slide, C1, y, CW / 2 - 0.1, 1.1, "FFF3CD", C.amber);
slide.addText([
  { text: "PRATAMAKA SHWASA\n", options: { bold: true, color: C.rust } },
  { text: "Asthma + Fever + Fainting\nPitta dosha involvement\n[C.S. Chi.17]", options: { fontSize: 13 } }
], { x: C1 + 0.1, y: y + 0.06, w: CW / 2 - 0.3, h: 1.0, fontSize: 13, color: C.darkText });

cardBox(slide, C1 + CW / 2 + 0.1, y, CW / 2 - 0.1, 1.1, "E8F4F8", C.midGreen);
slide.addText([
  { text: "SANTAMAKA SHWASA\n", options: { bold: true, color: C.forestGreen } },
  { text: "Nocturnal attacks dominant\nDarkness/suffocation sensation\n[C.S. Chi.17]", options: { fontSize: 13 } }
], { x: C1 + CW / 2 + 0.2, y: y + 0.06, w: CW / 2 - 0.3, h: 1.0, fontSize: 13, color: C.darkText });
y += 1.2;

// ══════════════════════════════════════════════════════════════════════════════
// COLUMN 2 — Rasayana Concept + Classical Drugs
// ══════════════════════════════════════════════════════════════════════════════
y = TOP;

// 3. Rasayana Concept
sectionHeader(slide, C2, y, CW, "3. Rasayana — Classical Concept");
y += 0.65;
// Two definition boxes
cardBox(slide, C2, y, CW, 1.35, "FFFBE8", C.gold);
slide.addText([
  { text: '"Labhopayo hi shastaanaam rasaadeenam rasayanam"\n', options: { italic: true, bold: true, color: C.deepGreen, fontSize: 16 } },
  { text: "The means by which one achieves optimum utilisation of Rasa (nutritive fluid) — Rasayana.\n", options: { fontSize: 14 } },
  { text: "[Charaka Samhita, Chikitsa Sthana 1/1/7-8]", options: { bold: true, color: C.forestGreen, fontSize: 13 } }
], { x: C2 + 0.15, y: y + 0.07, w: CW - 0.3, h: 1.2, valign: "top" });
y += 1.45;

cardBox(slide, C2, y, CW, 0.85, "EDF6EE", C.lightGreen);
slide.addText([
  { text: '"Rasayanam tad uktam yat jaravyadhinashanam"\n', options: { italic: true, bold: true, color: C.forestGreen, fontSize: 15 } },
  { text: "That which destroys old age and disease is Rasayana.  ", options: { fontSize: 13 } },
  { text: "[Sushruta Samhita, Su.1/15]", options: { bold: true, color: C.rust, fontSize: 13 } }
], { x: C2 + 0.15, y: y + 0.07, w: CW - 0.3, h: 0.75, valign: "top" });
y += 0.95;

// Benefits
sectionHeader(slide, C2, y, CW, "Benefits of Rasayana [C.S. Chi.1/1/7-8]");
y += 0.65;
const benefits = [
  ["Deergham Ayuh", "Longevity"],
  ["Smruti-Medha", "Memory & Intellect"],
  ["Arogya", "Freedom from disease"],
  ["Deha Bala", "Physical strength"],
  ["Swara", "Good voice — key in Shwasa!"],
  ["Vyadhikshamatva", "Disease resistance (Immunity)"],
];
const bColW = CW / 2 - 0.1;
benefits.forEach((b, i) => {
  const bx = C2 + (i % 2 === 0 ? 0 : bColW + 0.2);
  const by2 = y + Math.floor(i / 2) * 0.52;
  cardBox(slide, bx, by2, bColW, 0.46, i % 2 === 0 ? "E9F5EE" : "F0FAF5", C.midGreen);
  slide.addText([
    { text: b[0] + " — ", options: { bold: true, color: C.forestGreen } },
    { text: b[1], options: { color: C.darkText } }
  ], { x: bx + 0.08, y: by2 + 0.04, w: bColW - 0.16, h: 0.4, fontSize: 13, valign: "middle" });
});
y += Math.ceil(benefits.length / 2) * 0.52 + 0.2;

// Classification
sectionHeader(slide, C2, y, CW, "Classification of Rasayana");
y += 0.65;
const classTable = [
  ["Type", "Relevance to Asthma"],
  ["Naimittika Rasayana\n(Disease-specific)", "Direct — treats Tamaka Shwasa\n[C.S. Chi.1]"],
  ["Kamya Rasayana\n(Desired benefits)", "Bala Vardhan, Vyadhikshamatva"],
  ["Kutipraveshika\n(Indoor regimen)", "Best — for severe/chronic cases\n[C.S. Chi.1/4/28]"],
  ["Vatatapika\n(Outdoor/ambulatory)", "For mild-moderate cases in children"],
];
const ctCW = [5.0, 5.6];
classTable.forEach((row, ri) => {
  let cx = C2;
  row.forEach((cell, ci) => {
    const isH = ri === 0;
    cardBox(slide, cx, y + ri * 0.7, ctCW[ci], 0.68,
      isH ? C.forestGreen : (ri % 2 === 0 ? "F6FBF7" : "EAF5EE"),
      isH ? C.forestGreen : C.lightGreen);
    slide.addText(cell, {
      x: cx + 0.08, y: y + ri * 0.7 + 0.02, w: ctCW[ci] - 0.16, h: 0.64,
      fontSize: 13, bold: isH, color: isH ? C.white : C.darkText,
      align: "left", valign: "middle"
    });
    cx += ctCW[ci];
  });
});
y += classTable.length * 0.7 + 0.25;

// Classical Drugs
sectionHeader(slide, C2, y, CW, "4. Key Rasayana Drugs for Shwasa");
y += 0.65;
const drugs = [
  {
    name: "Chyawanprasha Avaleha",
    ref: "C.S. Chikitsa Sthana 1/1/62-74",
    desc: "Paramukta Rasayana • Indicated for Kasa, Shwasa, Kshataksheena, Uroroga\nKey ingredients: Amalaki, Pippali, Guduchi, Ashwagandha, Dashamula",
    color: "E8F4F0"
  },
  {
    name: "Agastya Haritaki Rasayana",
    ref: "C.S. Chikitsa Sthana 17/57-62",
    desc: "Specific for Kasa-Shwasa • Rasayana for Pranavaha Srotas\nIngredients: 100 Haritaki + Dashamula + Pippali + Shunthi + Ghrita + Honey",
    color: "EAF0FB"
  },
  {
    name: "Pippali Rasayana",
    ref: "C.S. Chikitsa Sthana 1/3/32-35",
    desc: "Vardhamana Pippali — graduated dosing\nDeepana-Pachana → corrects Ama → unblocks Pranavaha Srotas",
    color: "FFF0E6"
  },
  {
    name: "Vasa Avaleha",
    ref: "C.S. Chi.1/3; A.H. Chi.",
    desc: "Rasayana for Pranavaha Srotas • Avaleha form = oral-mucosal delivery\nBronchodilatory + expectorant + immunomodulator",
    color: "F0EBF8"
  },
];
drugs.forEach((d, i) => {
  const dy = y + i * 1.65;
  cardBox(slide, C2, dy, CW, 1.58, d.color, C.midGreen);
  slide.addText(d.name, { x: C2 + 0.12, y: dy + 0.06, w: CW - 0.24, h: 0.38, fontSize: 16, bold: true, color: C.deepGreen, valign: "middle" });
  slide.addText(d.ref, { x: C2 + 0.12, y: dy + 0.44, w: CW - 0.24, h: 0.28, fontSize: 13, italic: true, color: C.rust, valign: "middle" });
  slide.addText(d.desc, { x: C2 + 0.12, y: dy + 0.72, w: CW - 0.24, h: 0.78, fontSize: 13, color: C.darkText, valign: "top" });
});
y += drugs.length * 1.65 + 0.2;

// ══════════════════════════════════════════════════════════════════════════════
// COLUMN 3 — Kaumarabhritya Perspective + Modern Correlation + Protocol + Conclusion
// ══════════════════════════════════════════════════════════════════════════════
y = TOP;

// 5. Kaumarabhritya Perspective
sectionHeader(slide, C3, y, CW, "5. Kaumarabhritya Perspective");
y += 0.65;
cardBox(slide, C3, y, CW, 2.2, "EAF5EE", C.lightGreen);
bodyText(slide, C3 + 0.12, y + 0.08, CW - 0.24, 2.1, [
  { text: "Tamaka Shwasa in Children\n", options: { bold: true, color: C.forestGreen, fontSize: 16 } },
  { text: "• Peak prevalence: ", options: {} }, { text: "2–10 years", options: { bold: true } },
  { text: "\n• Boys aged 5–14 yrs: 1.3× higher risk of asthma mortality\n", options: {} },
  { text: "• Kapha-dominant Prakriti of Bala", options: { bold: true } },
  { text: " → higher susceptibility\n", options: {} },
  { text: "• Immature Agni + allergen exposure → recurrent Shwasa\n\n", options: {} },
  { text: "Why Rasayana in Children?\n", options: { bold: true, color: C.forestGreen } },
  { text: "Repeated attacks → Dhatukshaya → needs Rasayana to replenish tissue vitality\n", options: {} },
  { text: "Steroid-sparing effect: ", options: { bold: true } },
  { text: "Rasayana drugs are proven immunomodulators\n", options: {} },
  { text: "Nitya Sevana: ", options: { bold: true } },
  { text: "Daily use reduces intensity & frequency of attacks", options: {} }
], { fontSize: 14, lineSpacingMultiple: 1.25 });
y += 2.3;

// Swarna Prashan
sectionHeader(slide, C3, y, CW, "Swarna Prashan — Kaumarabhritya's Signature Rasayana");
y += 0.65;
cardBox(slide, C3, y, CW, 2.0, "FFFBE8", C.gold);
slide.addText([
  { text: '"Suvarna prashana hi etat medha agni bala vardhanam,\nayushyam mangalam punyam, vrushyam varna bala pradam"\n', options: { italic: true, bold: true, color: C.deepGreen, fontSize: 14 } },
  { text: "[Kashyapa Samhita, Leha Adhyaya]\n\n", options: { color: C.rust, fontSize: 13, bold: true } },
  { text: "• Gold (colloidal) + Vacha, Brahmi, Ashwagandha, Ghrita, Honey\n", options: { fontSize: 13 } },
  { text: "• Administered on Pushya Nakshatra (monthly)\n", options: { fontSize: 13 } },
  { text: "• Enhances Vyadhikshamatva — IgE regulation, phagocytic activity\n", options: { fontSize: 13 } },
  { text: "• Indicated for children <5 yrs with recurrent Shwasa & allergic tendencies", options: { fontSize: 13 } }
], { x: C3 + 0.12, y: y + 0.08, w: CW - 0.24, h: 1.85, valign: "top" });
y += 2.1;

// 6. Modern Pharmacological Correlation (table)
sectionHeader(slide, C3, y, CW, "6. Modern Pharmacological Correlation");
y += 0.65;
const pharmTable = [
  ["Drug (Sanskrit)", "Botanical Name", "Modern Activity"],
  ["Amalaki", "Emblica officinalis", "Antioxidant, Immunomodulator, Vit C"],
  ["Ashwagandha", "Withania somnifera", "NF-κB inhibition, Mast cell stabilization"],
  ["Guduchi", "Tinospora cordifolia", "Th1/Th2 balance, Anti-allergic"],
  ["Pippali", "Piper longum", "Bronchodilatory, Piperine bioenhancer"],
  ["Vasa", "Adhatoda vasica", "Vasicine → Bronchodilation, Mucolytic"],
  ["Haritaki", "Terminalia chebula", "Anti-inflammatory, Srotas shodhana"],
  ["Pushkara Moola", "Inula racemosa", "Isoalantolactone → Anti-asthmatic"],
];
const ptCW = [3.2, 4.0, 3.5];
pharmTable.forEach((row, ri) => {
  let cx = C3;
  row.forEach((cell, ci) => {
    const isH = ri === 0;
    cardBox(slide, cx, y + ri * 0.46, ptCW[ci], 0.44,
      isH ? C.midGreen : (ri % 2 === 0 ? "F3FBF5" : "E8F5EE"),
      isH ? C.midGreen : C.lightGreen);
    slide.addText(cell, {
      x: cx + 0.06, y: y + ri * 0.46 + 0.02, w: ptCW[ci] - 0.12, h: 0.4,
      fontSize: isH ? 13 : 12, bold: isH || ci === 0,
      color: isH ? C.white : C.darkText, align: "left", valign: "middle"
    });
    cx += ptCW[ci];
  });
});
y += pharmTable.length * 0.46 + 0.25;

// 7. Treatment Protocol
sectionHeader(slide, C3, y, CW, "7. Rasayana Protocol in Childhood Shwasa");
y += 0.65;
const steps = [
  { step: "1", title: "Shodhana First", desc: "Snehana (Bala Taila Abhyanga) + Virechana (Trivrit Leha) + Nasya (Anu Taila)", ref: "[C.S. Chi.1/4]" },
  { step: "2", title: "Naimittika Rasayana", desc: "Chyawanprasha (1-2 tsp + warm milk, BD) or Agastya Haritaki Rasayana (6-12g BD with honey)", ref: "[C.S. Chi.1/1, 17]" },
  { step: "3", title: "Swarna Prashan", desc: "Monthly on Pushya Nakshatra for children <5 yrs — Vyadhikshamatva enhancement", ref: "[Kashyapa Samhita]" },
  { step: "4", title: "Ritu Anusara", desc: "Seasonal administration — Sharad & Hemanta Ritu (autumn-winter, peak asthma season)", ref: "[JETIR 2023]" },
];
steps.forEach((s, i) => {
  const sy = y + i * 1.0;
  // Number circle
  slide.addShape(pres.ShapeType.ellipse, { x: C3, y: sy + 0.05, w: 0.55, h: 0.55, fill: { color: C.forestGreen }, line: { color: C.forestGreen } });
  slide.addText(s.step, { x: C3, y: sy + 0.05, w: 0.55, h: 0.55, fontSize: 18, bold: true, color: C.white, align: "center", valign: "middle" });
  cardBox(slide, C3 + 0.65, sy, CW - 0.65, 0.9, "F5FBF7", C.lightGreen);
  slide.addText([
    { text: s.title + " — ", options: { bold: true, color: C.forestGreen } },
    { text: s.desc, options: {} },
    { text: "  " + s.ref, options: { italic: true, color: C.rust, fontSize: 12 } }
  ], { x: C3 + 0.75, y: sy + 0.06, w: CW - 0.85, h: 0.82, fontSize: 13, valign: "middle", lineSpacingMultiple: 1.2 });
});
y += steps.length * 1.0 + 0.25;

// 8. Epigenetic Evidence
sectionHeader(slide, C3, y, CW, "8. Scientific Evidence");
y += 0.65;
cardBox(slide, C3, y, CW, 1.3, "F0EBF8", "9B59B6");
slide.addText([
  { text: "Epigenetic Evidence (2023): ", options: { bold: true, color: "6C3483", fontSize: 14 } },
  { text: "Bhat S et al. (J Ayurveda Integr Med 2023; PMID: 37018893) demonstrated Ayurvedic intervention in bronchial asthma produces ", options: { fontSize: 13 } },
  { text: "genome-wide DNA methylation changes", options: { bold: true, fontSize: 13, color: C.rust } },
  { text: " in immune-process transcription factors — suggesting Rasayana acts at an ", options: { fontSize: 13 } },
  { text: "epigenetic level", options: { bold: true, fontSize: 13 } },
  { text: " beyond mere symptomatic relief. Avaleha as Pranavaha Srotas Rasayana (oral-mucosal targeted delivery) — PMC 3215424, IPGT&RA Jamnagar.", options: { fontSize: 13 } }
], { x: C3 + 0.12, y: y + 0.08, w: CW - 0.24, h: 1.2, valign: "top" });
y += 1.4;

// 9. Conclusion
sectionHeader(slide, C3, y, CW, "9. Conclusion");
y += 0.65;
cardBox(slide, C3, y, CW, 4.8, C.deepGreen, C.forestGreen);
const conclusions = [
  "Tamaka Shwasa = Yapya Vyadhi — manageable, not permanently curable (mirrors modern asthma definition)",
  "Shodhana → Rasayana is the classical management sequence",
  "Naimittika Rasayana drugs (Chyawanprasha, Agastya Haritaki, Pippali) provide disease-specific Pranavaha Srotas rejuvenation",
  "Swarna Prashan — exclusive Kaumarabhritya Rasayana — confers Vyadhikshamatva and reduces allergic reactivity",
  "Nitya Sevana + Ritu Anusara reduces attack intensity and frequency",
  "Modern pharmacology validates Rasayana dravyas as immunomodulatory, anti-inflammatory, adaptogenic & epigenetically active",
  "Rasayana offers a SAFE, STEROID-SPARING long-term control strategy for childhood asthma"
];
conclusions.forEach((c, i) => {
  slide.addText([
    { text: "✦ ", options: { color: C.gold, fontSize: 14, bold: true } },
    { text: c, options: { color: C.white, fontSize: 13 } }
  ], {
    x: C3 + 0.15, y: y + 0.12 + i * 0.64, w: CW - 0.3, h: 0.58,
    valign: "top"
  });
});
y += 4.9;

// ══════════════════════════════════════════════════════════════════════════════
// REFERENCES FOOTER BAND
// ══════════════════════════════════════════════════════════════════════════════
const refY = 46.5;
slide.addShape(pres.ShapeType.rect, {
  x: 0, y: refY, w: 36, h: 1.3,
  fill: { color: C.slate },
  line: { color: C.slate }
});
slide.addText("References:  ", {
  x: 0.3, y: refY + 0.08, w: 2.5, h: 0.35, fontSize: 13, bold: true, color: C.gold
});
const refs = [
  "1. C.S. Chi.1/1/7-8 (Rasayana Def.)",
  "2. C.S. Chi.1/1/62-74 (Chyawanprasha)",
  "3. C.S. Chi.17/57-62 (Agastya Haritaki)",
  "4. C.S. Chi.1/3/32-35 (Pippali Rasayana)",
  "5. S.S. Su.1/15 (Rasayana Def.)",
  "6. A.H. Ni.4/3 (Tamaka Shwasa Nidana)",
  "7. Kashyapa Samhita, Leha Adhyaya (Swarna Prashan)",
  "8. Bhat S et al. J Ayurveda Integr Med 2023 [PMID: 37018893]",
  "9. PMC 3215424 — Bharangyadi Avaleha, IPGT&RA Jamnagar",
];
slide.addText(refs.join("   |   "), {
  x: 0.3, y: refY + 0.43, w: 35.4, h: 0.78,
  fontSize: 12, color: C.mintGreen,
  align: "left", valign: "top"
});

// Gold bottom strip
slide.addShape(pres.ShapeType.rect, {
  x: 0, y: 47.8, w: 36, h: 0.2,
  fill: { color: C.gold },
  line: { color: C.gold }
});

// Save
pres.writeFile({ fileName: "/home/daytona/workspace/rasayana-poster/Rasayana_Therapy_Asthma_Poster.pptx" })
  .then(() => console.log("Poster saved successfully."))
  .catch(err => console.error("Error:", err));

const pptxgen = require("pptxgenjs");
const { execSync } = require("child_process");

// ── Fetch images as base64 ────────────────────────────────────────────────────
const imgUrls = [
  "https://cdn.orris.care/cdss_images/pmc_clinical_VQA_d73a19b509d91931f102143741d61751c4ddf666192b89e6ef9901711326507f.jpg", // asthma pathophysiology
  "https://cdn.orris.care/cdss_images/pmc_clinical_VQA_f1332d400074c8fe7d7e4bcff6f48424d688cb4a1c443c14a16987950c409b9d.jpg", // Ayurveda Rasayana Chikitsa
  "https://cdn.orris.care/cdss_images/pmc_clinical_VQA_c05d3a5b02864520896cf14181ac9a9abb147d1bbd08505a6ab373f9c9fbe92d.jpg", // Ashwagandha
  "https://cdn.orris.care/cdss_images/pmc_clinical_VQA_093fca0c27fe5524ef1627e745b7c38592ac56f5cec59ed19076f4a58d8cf75b.jpg", // pediatric chest exam
];

console.log("Fetching images...");
const imgs = JSON.parse(
  execSync(
    `node /home/daytona/skills/shared/scripts/fetch_images.js ${imgUrls.map(u => `"${u}"`).join(" ")}`
  ).toString()
);
console.log("Images fetched:", imgs.map(i => i.error ? "ERROR: " + i.error : "OK").join(", "));

// ── PptxGen Setup ─────────────────────────────────────────────────────────────
const pres = new pptxgen();
// A3 Landscape = 16.54" × 11.69"
pres.defineLayout({ name: "A3L", width: 16.54, height: 11.69 });
pres.layout = "A3L";
pres.title = "Rasayana Therapy in Long-term Asthma Control";

const slide = pres.addSlide();

// ── PALETTE ───────────────────────────────────────────────────────────────────
const C = {
  headerBg:   "1B3A2D",  // very dark green
  headerAcct: "C9A84C",  // gold
  secHdr:     "2D6A4F",  // forest green
  midGreen:   "40916C",
  lightGreen: "74C69D",
  mintBg:     "EAF5EE",
  cream:      "FAFAF5",
  gold:       "C9A84C",
  goldLight:  "F5E6B4",
  rust:       "9B2226",
  darkText:   "1A1A1A",
  white:      "FFFFFF",
  tablHdr:    "344E41",
  purple:     "5A189A",
  purpleLight:"F3E8FF",
};

// ── BACKGROUND ────────────────────────────────────────────────────────────────
slide.addShape(pres.ShapeType.rect, {
  x:0, y:0, w:16.54, h:11.69,
  fill:{ color: C.cream }, line:{ color: C.cream }
});

// ── HEADER BAND ───────────────────────────────────────────────────────────────
slide.addShape(pres.ShapeType.rect, {
  x:0, y:0, w:16.54, h:1.28,
  fill:{ color: C.headerBg }, line:{ color: C.headerBg }
});
// gold accent line
slide.addShape(pres.ShapeType.rect, {
  x:0, y:1.28, w:16.54, h:0.055,
  fill:{ color: C.gold }, line:{ color: C.gold }
});
// Main title
slide.addText("Rasayana Therapy in Long-term Asthma Control", {
  x:0.2, y:0.05, w:11.8, h:0.72,
  fontSize:28, bold:true, color:C.white, fontFace:"Georgia",
  align:"left", valign:"middle"
});
// Subtitle
slide.addText("Tamaka Shwasa (Bronchial Asthma) — Ayurvedic Evidence Review", {
  x:0.2, y:0.75, w:11.8, h:0.42,
  fontSize:13, bold:false, color:C.lightGreen, fontFace:"Calibri",
  align:"left", valign:"middle"
});
// Dept info (right side of header)
slide.addText([
  { text: "PG Scholar\n", options:{ bold:true, fontSize:12 } },
  { text: "Department of Kaumarabhritya\n", options:{ fontSize:11 } },
  { text: "Institute of Ayurveda", options:{ fontSize:10 } }
], {
  x:12.1, y:0.08, w:4.2, h:1.1,
  fontSize:11, color:C.mintBg, fontFace:"Calibri",
  align:"right", valign:"middle"
});
// Sanskrit quote bar
slide.addShape(pres.ShapeType.rect, {
  x:0, y:1.335, w:16.54, h:0.32,
  fill:{ color: C.goldLight }, line:{ color: C.gold, width:0.5 }
});
slide.addText([
  { text:'"Labhopayo hi shastaanaam rasaadeenam rasayanam"  ', options:{ italic:true, bold:true, color:C.headerBg, fontSize:11 } },
  { text:"— The means to achieve optimum utilisation of Rasa (nutritive essence) is Rasayana.  ", options:{ color:C.darkText, fontSize:10 } },
  { text:"[Charaka Samhita, Chikitsa Sthana 1/1/7-8]", options:{ bold:true, color:C.rust, fontSize:10 } },
], {
  x:0.2, y:1.34, w:16.14, h:0.3,
  align:"center", valign:"middle"
});

// ── LAYOUT CONSTANTS ──────────────────────────────────────────────────────────
const ROW1Y = 1.72;  // top of content
const COL_W = 5.25;
const C1x = 0.15, C2x = 5.58, C3x = 10.96;
const GAP = 0.08;

function secH(slide, x, y, w, label, color) {
  color = color || C.secHdr;
  slide.addShape(pres.ShapeType.rect, {
    x, y, w, h:0.33,
    fill:{ color }, line:{ color },
    rectRadius:0.04
  });
  slide.addText(label, {
    x:x+0.1, y, w:w-0.2, h:0.33,
    fontSize:11.5, bold:true, color:C.white,
    fontFace:"Calibri", align:"left", valign:"middle", margin:0
  });
}

function card(slide, x, y, w, h, bg, border) {
  slide.addShape(pres.ShapeType.rect, {
    x, y, w, h,
    fill:{ color: bg || C.mintBg },
    line:{ color: border || C.lightGreen, width:0.75 },
    rectRadius:0.06,
    shadow:{ type:"outer", blur:3, offset:1.5, angle:45, color:"BBBBBB", opacity:0.25 }
  });
}

function txt(slide, x, y, w, h, runs, opts) {
  slide.addText(runs, {
    x, y, w, h,
    fontSize: opts.fs || 10,
    fontFace:"Calibri",
    color: opts.color || C.darkText,
    align: opts.align || "left",
    valign: opts.valign || "top",
    lineSpacingMultiple: opts.ls || 1.18,
    ...opts
  });
}

// ══════════════════════════════════════════════════════════════════════════════
// COLUMN 1  (x = 0.15)
// ══════════════════════════════════════════════════════════════════════════════
let y1 = ROW1Y;

// ── Section 1: Introduction + Epidemiology ──────────────────────────────────
secH(slide, C1x, y1, COL_W, "1. Introduction — Tamaka Shwasa (Bronchial Asthma)");
y1 += 0.38;
card(slide, C1x, y1, COL_W, 1.12, C.mintBg, C.lightGreen);
txt(slide, C1x+0.1, y1+0.06, COL_W-0.2, 1.0, [
  { text:"Tamaka Shwasa", options:{ bold:true, color:C.secHdr } },
  { text:" is one of the five types of Shwasa Roga. Classified as a ", options:{} },
  { text:"Yapya Vyadhi", options:{ bold:true, italic:true, color:C.rust } },
  { text:" (manageable, not permanently curable) — a concept matching modern asthma definition.\n\n", options:{} },
  { text:"Pathology: ", options:{ bold:true } },
  { text:"Vata-Kapha vitiation → obstruction of Pranavaha Srotas → Pratiloma Gati of Prana Vayu → wheezing, dyspnoea, coryza\n", options:{} },
  { text:'[C.S. Chi.17]  |  [A.H. Ni.4/3]', options:{ bold:true, color:C.rust, fontSize:9 } }
], { fs:10, ls:1.2 });
y1 += 1.18;

// ── Section 2: Samprapti ──────────────────────────────────────────────────────
secH(slide, C1x, y1, COL_W, "2. Samprapti (Pathogenesis)");
y1 += 0.38;
const flowBoxes = ["Ruksha/Sheeta\nAhara-Vihara", "Vata\nPrakopa", "Kapha\nUpsurge", "Pranavaha\nSrotas Block", "Tamaka\nShwasa"];
const fW = (COL_W - 0.15) / 5.4;
flowBoxes.forEach((label, i) => {
  const fx = C1x + i * (fW + 0.08);
  const isLast = i === flowBoxes.length - 1;
  slide.addShape(pres.ShapeType.rect, {
    x: fx, y: y1, w: fW, h: 0.56,
    fill:{ color: isLast ? C.rust : C.secHdr },
    line:{ color: isLast ? C.rust : C.secHdr },
    rectRadius: 0.05
  });
  slide.addText(label, {
    x: fx, y: y1, w: fW, h: 0.56,
    fontSize: 8.5, bold: isLast, color: C.white,
    align:"center", valign:"middle"
  });
  if (!isLast) {
    slide.addText("▶", {
      x: fx + fW, y: y1+0.13, w: 0.1, h: 0.3,
      fontSize: 10, color: C.midGreen, align:"center"
    });
  }
});
y1 += 0.7;

// ── Section 3: Nidana Comparison Table ───────────────────────────────────────
secH(slide, C1x, y1, COL_W, "3. Nidana — Comparative Classical References");
y1 += 0.38;
const nRows = [
  ["Causative Factor", "C.S.", "S.S.", "A.H.", "M.N."],
  ["Rukshana / dry food",   "✓","✓","—","✓"],
  ["Sheeta Ahara / cold food","✓","✓","—","✓"],
  ["Dhuma/Raja (smoke/dust)","✓","✓","✓","✓"],
  ["Ativyayama (excess exertion)","✓","✓","—","✓"],
  ["Sheeta Sthana (cold climate)","✓","—","✓","✓"],
];
const nCW = [2.8,0.6,0.6,0.6,0.6];
const nRH = 0.3;
nRows.forEach((row, ri) => {
  let cx = C1x;
  row.forEach((cell, ci) => {
    const isH = ri === 0;
    slide.addShape(pres.ShapeType.rect, {
      x: cx, y: y1+ri*nRH, w: nCW[ci], h: nRH,
      fill:{ color: isH ? C.tablHdr : (ri%2===0 ? C.white : "EEF8F2") },
      line:{ color: isH ? C.tablHdr : "C8E6C9", width:0.5 }
    });
    slide.addText(cell, {
      x: cx+0.04, y: y1+ri*nRH, w: nCW[ci]-0.08, h: nRH,
      fontSize: isH?9:9, bold: isH || ci===0,
      color: isH ? C.white : (cell==="✓" ? C.secHdr : (cell==="—"?"AAAAAA":C.darkText)),
      align: ci===0 ? "left":"center", valign:"middle"
    });
    cx += nCW[ci];
  });
});
y1 += nRows.length * nRH + 0.12;

// ── Pediatric Image ────────────────────────────────────────────────────────────
const imgPed = imgs[3];
if (!imgPed.error) {
  card(slide, C1x, y1, COL_W, 2.12, C.white, C.lightGreen);
  slide.addImage({ data: imgPed.base64, x: C1x+0.06, y: y1+0.06, w: 2.1, h: 1.95 });
  txt(slide, C1x+2.22, y1+0.08, 2.94, 1.95, [
    { text: "Kaumarabhritya Perspective\n", options:{ bold:true, color:C.secHdr, fontSize:11 } },
    { text: "• Peak prevalence: 2–10 years\n", options:{} },
    { text: "• Boys 5–14 yrs: 1.3× mortality risk\n", options:{} },
    { text: "• Bala Prakriti = Kapha dominant\n  → higher susceptibility\n", options:{} },
    { text: "• Immature Agni + allergen exposure\n  → recurrent Shwasa\n", options:{} },
    { text: "Ref: ", options:{ bold:true } },
    { text: "A.H. Uttarasthana, Kaumarabhritya Adhyaya", options:{ italic:true, color:C.rust } }
  ], { fs:9.5, ls:1.2 });
}
y1 += 2.18;

// ══════════════════════════════════════════════════════════════════════════════
// COLUMN 2  (x = 5.58)
// ══════════════════════════════════════════════════════════════════════════════
let y2 = ROW1Y;

// ── Asthma Pathophysiology Image ─────────────────────────────────────────────
secH(slide, C2x, y2, COL_W, "4. Asthma Pathophysiology — Vyadhi Vijnana");
y2 += 0.38;
const imgAsthma = imgs[0];
if (!imgAsthma.error) {
  card(slide, C2x, y2, COL_W, 3.1, C.white, C.lightGreen);
  slide.addImage({ data: imgAsthma.base64, x: C2x+0.08, y: y2+0.08, w: 5.08, h: 2.92 });
}
y2 += 3.16;

// Caption under image
slide.addText([
  { text:"Allergen → IgE-mediated → Mast cell activation → Histamine/Leukotrienes → Bronchospasm + Airway Remodeling\n", options:{ fontSize:8.5, color:"666666" } },
  { text:"Ayurvedic parallel: ", options:{ bold:true, fontSize:9, color:C.secHdr } },
  { text:"Vata-Kapha → Srotodushti → Pinasa + Shwasa + Ghurghurak (wheezing)", options:{ fontSize:9, color:C.darkText } }
], { x:C2x, y:y2, w:COL_W, h:0.42, align:"left", valign:"top" });
y2 += 0.48;

// ── Section 5: Rasayana Concept ───────────────────────────────────────────────
secH(slide, C2x, y2, COL_W, "5. Rasayana — Classification & Benefits");
y2 += 0.38;
// Two def cards side by side
card(slide, C2x, y2, 2.56, 0.9, "FFFBE8", C.gold);
txt(slide, C2x+0.08, y2+0.05, 2.4, 0.82, [
  { text:"Naimittika Rasayana\n", options:{ bold:true, color:C.secHdr, fontSize:10 } },
  { text:"Disease-specific rejuvenation\n", options:{ fontSize:9 } },
  { text:"→ Direct relevance to Tamaka Shwasa", options:{ italic:true, fontSize:9, color:C.rust } }
], { fs:9.5, ls:1.1 });

card(slide, C2x+2.65, y2, 2.56, 0.9, "EDF6EE", C.lightGreen);
txt(slide, C2x+2.73, y2+0.05, 2.4, 0.82, [
  { text:"Kamya Rasayana\n", options:{ bold:true, color:C.secHdr, fontSize:10 } },
  { text:"Vyadhikshamatva (Immunity)\n", options:{ fontSize:9 } },
  { text:"Bala Vardhan + Ojas strengthening", options:{ italic:true, fontSize:9, color:C.rust } }
], { fs:9.5, ls:1.1 });
y2 += 1.0;

// Benefits grid (6 boxes in 3x2)
const bens = [
  ["Deergham Ayuh","Longevity"],
  ["Swara","Good voice → Shwasa!"],
  ["Arogya","Disease-free state"],
  ["Deha Bala","Physical strength"],
  ["Medha","Intelligence"],
  ["Vyadhikshamatva","Immune resilience"],
];
const bW = (COL_W-0.12)/3, bH = 0.5;
bens.forEach((b, i) => {
  const bx = C2x + (i%3)*(bW+0.06);
  const by = y2 + Math.floor(i/3)*(bH+0.06);
  card(slide, bx, by, bW, bH, i%2===0?"E8F5EE":"F0FAF6", C.midGreen);
  txt(slide, bx+0.06, by+0.04, bW-0.12, bH-0.08, [
    { text:b[0]+"\n", options:{ bold:true, color:C.secHdr, fontSize:9.5 } },
    { text:b[1], options:{ fontSize:9, color:C.darkText } }
  ], { fs:9.5, ls:1.0 });
});
y2 += 2*(bH+0.06) + 0.06;

// ── Ayurveda Rasayana Image ───────────────────────────────────────────────────
secH(slide, C2x, y2, COL_W, "6. Rasayana Chikitsa — Integrative Approach");
y2 += 0.38;
const imgRas = imgs[1];
if (!imgRas.error) {
  card(slide, C2x, y2, COL_W, 2.0, C.white, C.lightGreen);
  slide.addImage({ data: imgRas.base64, x: C2x+0.06, y: y2+0.06, w: 5.1, h: 1.88 });
}
y2 += 2.06;

// ══════════════════════════════════════════════════════════════════════════════
// COLUMN 3  (x = 10.96)
// ══════════════════════════════════════════════════════════════════════════════
let y3 = ROW1Y;

// ── Section 7: Key Rasayana Drugs ────────────────────────────────────────────
secH(slide, C3x, y3, COL_W, "7. Key Rasayana Drugs for Shwasa");
y3 += 0.38;
const drugs = [
  { name:"Chyawanprasha Avaleha", ref:"C.S. Chi.1/1/62-74",
    desc:"Paramukta Rasayana — indicated for Kasa, Shwasa, Uroroga.\nKey herbs: Amalaki, Pippali, Guduchi, Ashwagandha, Dashamula", color:"E8F4F0" },
  { name:"Agastya Haritaki Rasayana", ref:"C.S. Chi.17/57-62",
    desc:"Specific Rasayana for Pranavaha Srotas. 100 Haritaki + Dashamula + Pippali + Shunthi + Ghrita + Honey", color:"EAF0FB" },
  { name:"Pippali (Vardhamana) Rasayana", ref:"C.S. Chi.1/3/32-35",
    desc:"Graduated dosing → Deepana-Pachana → corrects Ama → unblocks Pranavaha Srotas\nPiperine: bioenhancer, bronchodilator", color:"FFF0E6" },
  { name:"Vasa Avaleha", ref:"C.S. Chi.1/3; A.H. Chi.",
    desc:"Rasayana for Pranavaha Srotas via oral-mucosal delivery.\nVasicine: bronchodilatory + mucolytic + expectorant", color:"F0EBF8" },
];
drugs.forEach((d, i) => {
  const dy = y3 + i*1.42;
  card(slide, C3x, dy, COL_W, 1.36, d.color, C.midGreen);
  // Numbered badge
  slide.addShape(pres.ShapeType.ellipse, { x:C3x+0.08, y:dy+0.08, w:0.36, h:0.36, fill:{ color:C.secHdr }, line:{ color:C.secHdr } });
  slide.addText(String(i+1), { x:C3x+0.08, y:dy+0.08, w:0.36, h:0.36, fontSize:11, bold:true, color:C.white, align:"center", valign:"middle" });
  slide.addText(d.name, { x:C3x+0.5, y:dy+0.06, w:COL_W-0.6, h:0.3, fontSize:11, bold:true, color:C.headerBg, valign:"middle" });
  slide.addText(d.ref, { x:C3x+0.5, y:dy+0.36, w:COL_W-0.6, h:0.22, fontSize:9, italic:true, color:C.rust, valign:"middle" });
  slide.addText(d.desc, { x:C3x+0.12, y:dy+0.6, w:COL_W-0.22, h:0.7, fontSize:9.5, color:C.darkText, valign:"top" });
});
y3 += drugs.length*1.42 + 0.1;

// ── Section 8: Swarna Prashan ─────────────────────────────────────────────────
secH(slide, C3x, y3, COL_W, "8. Swarna Prashan — Kaumarabhritya's Signature Rasayana", C.gold.replace("#","") ? "#C9A84C".replace("#","") : C.tablHdr);
y3 += 0.38;
card(slide, C3x, y3, COL_W, 1.45, "FFFBE8", C.gold);
txt(slide, C3x+0.1, y3+0.06, COL_W-0.2, 1.34, [
  { text:'"Suvarna prashana hi etat medha agni bala vardhanam..."\n', options:{ italic:true, bold:true, color:C.headerBg, fontSize:10 } },
  { text:"[Kashyapa Samhita, Leha Adhyaya]\n\n", options:{ bold:true, color:C.rust, fontSize:9 } },
  { text:"• Gold (colloidal) + Vacha, Brahmi, Ashwagandha, Ghrita, Honey   • Pushya Nakshatra (monthly)\n", options:{ fontSize:9.5 } },
  { text:"• Enhances Vyadhikshamatva — IgE regulation, phagocytic activity\n", options:{ fontSize:9.5 } },
  { text:"• For children <5 yrs with recurrent Shwasa & allergic tendencies", options:{ fontSize:9.5 } }
], { fs:9.5, ls:1.2 });
y3 += 1.52;

// ── Section 9: Modern Pharmacological Correlation ────────────────────────────
secH(slide, C3x, y3, COL_W, "9. Modern Pharmacological Correlation");
y3 += 0.38;
// Ashwagandha image + small table
const imgAshwa = imgs[2];
const tableStartX = C3x;
if (!imgAshwa.error) {
  card(slide, C3x, y3, 2.1, 1.85, C.white, C.lightGreen);
  slide.addImage({ data: imgAshwa.base64, x: C3x+0.05, y: y3+0.05, w: 2.0, h: 1.75 });
}
// Mini pharmacology table
const pRows = [
  ["Drug","Modern Action"],
  ["Amalaki","Antioxidant, Vit C, Immunomod."],
  ["Ashwagandha","NF-κB ↓, Mast cell stabilize"],
  ["Guduchi","Th1/Th2 balance, Anti-allergic"],
  ["Pippali","Bronchodilator, Piperine"],
  ["Vasa","Vasicine → Bronchodilation"],
  ["Haritaki","Anti-inflammatory, Srotas↑"],
];
const pCW2 = [1.46, 2.62];
pRows.forEach((row, ri) => {
  const px = C3x + 2.16;
  const py = y3 + ri*0.265;
  const isH = ri===0;
  row.forEach((cell, ci) => {
    slide.addShape(pres.ShapeType.rect, {
      x: px + (ci===0?0:pCW2[0]), y: py, w: pCW2[ci], h: 0.255,
      fill:{ color: isH ? C.tablHdr : (ri%2===0?C.white:"EEF8F3") },
      line:{ color: isH?C.tablHdr:"C8E6C9", width:0.5 }
    });
    slide.addText(cell, {
      x: px+(ci===0?0.04:pCW2[0]+0.04), y: py+0.01, w: pCW2[ci]-0.08, h: 0.235,
      fontSize: isH?8.5:8.5, bold: isH||ci===0,
      color: isH?C.white:C.darkText,
      align:"left", valign:"middle"
    });
  });
});
y3 += 1.9;

// ── Section 10: Treatment Protocol ───────────────────────────────────────────
secH(slide, C3x, y3, COL_W, "10. Rasayana Protocol in Childhood Shwasa");
y3 += 0.38;
const steps = [
  { n:"1", t:"Shodhana First", d:"Snehana → Virechana (Trivrit Leha) → Nasya (Anu Taila)  [C.S. Chi.1/4]" },
  { n:"2", t:"Naimittika Rasayana", d:"Chyawanprasha 1-2 tsp + warm milk BD  |  Agastya Haritaki 6-12g BD" },
  { n:"3", t:"Swarna Prashan", d:"Monthly on Pushya Nakshatra for <5 yrs  [Kashyapa Samhita]" },
  { n:"4", t:"Ritu Anusara", d:"Seasonal — Sharad & Hemanta Ritu (peak asthma season)" },
];
steps.forEach((s, i) => {
  const sy = y3 + i*0.55;
  slide.addShape(pres.ShapeType.ellipse, { x:C3x, y:sy+0.06, w:0.38, h:0.38, fill:{ color:C.secHdr }, line:{ color:C.secHdr } });
  slide.addText(s.n, { x:C3x, y:sy+0.06, w:0.38, h:0.38, fontSize:11, bold:true, color:C.white, align:"center", valign:"middle" });
  card(slide, C3x+0.44, sy, COL_W-0.44, 0.48, "F3FBF5", C.lightGreen);
  txt(slide, C3x+0.52, sy+0.04, COL_W-0.6, 0.42, [
    { text:s.t+" — ", options:{ bold:true, color:C.secHdr, fontSize:10 } },
    { text:s.d, options:{ fontSize:9.5 } }
  ], { fs:9.5, ls:1.1 });
});
y3 += steps.length*0.55 + 0.1;

// ══════════════════════════════════════════════════════════════════════════════
// CONCLUSION BAND
// ══════════════════════════════════════════════════════════════════════════════
const concY = 10.78;
slide.addShape(pres.ShapeType.rect, {
  x:0, y:concY, w:16.54, h:0.62,
  fill:{ color:C.headerBg }, line:{ color:C.headerBg }
});
const conclusions = [
  "Tamaka Shwasa = Yapya Vyadhi ↔ Modern asthma (incurable but manageable)",
  "Shodhana → Rasayana is the classical sequence",
  "Chyawanprasha, Agastya Haritaki, Pippali Rasayana, Vasa Avaleha — Naimittika Rasayana for Pranavaha Srotas",
  "Swarna Prashan = Kaumarabhritya exclusive Rasayana for Vyadhikshamatva",
  "Epigenetic basis validated [PMID: 37018893]",
];
slide.addText(conclusions.map(c=>"✦ "+c).join("   |   "), {
  x:0.2, y:concY+0.06, w:16.14, h:0.5,
  fontSize:9, bold:false, color:C.white,
  fontFace:"Calibri", align:"left", valign:"middle"
});

// ── REFERENCES FOOTER ─────────────────────────────────────────────────────────
const refY = 11.38;
slide.addShape(pres.ShapeType.rect, {
  x:0, y:refY, w:16.54, h:0.31,
  fill:{ color:C.tablHdr }, line:{ color:C.tablHdr }
});
slide.addText([
  { text:"References: ", options:{ bold:true, color:C.gold, fontSize:8 } },
  { text:"1. C.S. Chi.1/1/7-8 (Rasayana)  |  2. C.S. Chi.1/1/62-74 (Chyawanprasha)  |  3. C.S. Chi.17/57-62 (Agastya Haritaki)  |  4. C.S. Chi.1/3/32-35 (Pippali Rasayana)  |  5. S.S. Su.1/15  |  6. A.H. Ni.4/3  |  7. Kashyapa Samhita, Leha Adhyaya  |  8. Bhat S et al. J Ayurveda Integr Med 2023 [PMID:37018893]", options:{ color:"D0EAD8", fontSize:8 } }
], { x:0.2, y:refY+0.02, w:16.14, h:0.27, valign:"middle" });

// ══════════════════════════════════════════════════════════════════════════════
// SAVE
// ══════════════════════════════════════════════════════════════════════════════
pres.writeFile({ fileName:"/home/daytona/workspace/rasayana-poster/Rasayana_A3_Poster.pptx" })
  .then(() => console.log("✅ A3 Poster saved successfully."))
  .catch(err => console.error("❌ Error:", err));

const pptxgen = require("pptxgenjs");
const { execSync } = require("child_process");

// ── Fetch images ──────────────────────────────────────────────────────────────
const urls = [
  "https://cdn.orris.care/image-gen/44f3486c9bd64fcda0f7934ecea03d38.png", // herbs
  "https://cdn.orris.care/image-gen/ea1c9db8908f4c60a6a7eaa4dc281d24.png", // procedures
  "https://cdn.orris.care/image-gen/8eb94864cadd4bfe8d147f9e8e40f630.png", // bronchus cross-section
];
console.log("Fetching images...");
const imgs = JSON.parse(
  execSync(`node /home/daytona/skills/shared/scripts/fetch_images.js ${urls.map(u=>`"${u}"`).join(" ")}`).toString()
);
console.log("Images:", imgs.map(i => i.error ? "ERR:"+i.error : "OK").join(", "));

// ── Setup ─────────────────────────────────────────────────────────────────────
const pres = new pptxgen();
// A3 Portrait = 11.69" × 16.54"
pres.defineLayout({ name: "A3P", width: 11.69, height: 16.54 });
pres.layout = "A3P";
pres.title = "Rasayana Therapy in Long-term Asthma Control";

const slide = pres.addSlide();

// ── PALETTE ───────────────────────────────────────────────────────────────────
const BG       = "F7F4ED";   // warm parchment
const HDR_DARK = "1B3A2D";   // deep forest green
const HDR_MID  = "2D6A4F";   // section header
const HDR_LITE = "40916C";   // sub-header
const ACCENT   = "74C69D";   // light green
const MINT_BG  = "E8F5EE";   // card fill light
const GOLD     = "C9A84C";   // gold accent
const GOLD_LT  = "FDF3D0";   // gold light fill
const RUST     = "9B2226";   // ref/alert
const WHITE    = "FFFFFF";
const DARK_TXT = "1C1C1C";
const SLATE    = "344E41";
const PURPLE   = "5C3D8F";
const PURP_LT  = "EDE7F6";

// ── Helpers ───────────────────────────────────────────────────────────────────
const W = 11.69;

function bg(slide) {
  slide.addShape(pres.ShapeType.rect, { x:0,y:0,w:W,h:16.54, fill:{color:BG}, line:{color:BG} });
}

function rect(slide, x,y,w,h, fill, line, radius) {
  slide.addShape(pres.ShapeType.rect, {
    x,y,w,h,
    fill:{color: fill||BG},
    line:{color: line||fill||BG, width:0.75},
    rectRadius: radius||0
  });
}

function secHeader(slide, x,y,w, label, color, textColor) {
  rect(slide, x,y,w,0.38, color||HDR_MID, color||HDR_MID, 0.05);
  slide.addText(label, {
    x:x+0.12, y, w:w-0.24, h:0.38,
    fontSize:12.5, bold:true, color: textColor||WHITE,
    fontFace:"Calibri", align:"left", valign:"middle", margin:0
  });
}

function card(slide, x,y,w,h, fill, border) {
  slide.addShape(pres.ShapeType.rect, {
    x,y,w,h,
    fill:{color:fill||MINT_BG},
    line:{color:border||ACCENT, width:0.75},
    rectRadius:0.07,
    shadow:{type:"outer", blur:3, offset:1.5, angle:45, color:"CCCCCC", opacity:0.3}
  });
}

function addTxt(slide, x,y,w,h, runs, fs, color, align, ls) {
  slide.addText(runs, {
    x,y,w,h,
    fontSize:fs||10,
    color:color||DARK_TXT,
    fontFace:"Calibri",
    align:align||"left",
    valign:"top",
    lineSpacingMultiple:ls||1.2
  });
}

// ════════════════════════════════════════════════════════════════════════
// BACKGROUND
// ════════════════════════════════════════════════════════════════════════
bg(slide);

// Left decorative stripe
rect(slide, 0,0,0.18,16.54, HDR_DARK, HDR_DARK);
// Right decorative stripe
rect(slide, 11.51,0,0.18,16.54, HDR_DARK, HDR_DARK);

// ════════════════════════════════════════════════════════════════════════
// HEADER  (0 → 2.05")
// ════════════════════════════════════════════════════════════════════════
rect(slide, 0.18,0,11.33,1.9, HDR_DARK, HDR_DARK);
// Gold top bar
rect(slide, 0.18,1.9,11.33,0.07, GOLD, GOLD);

// Title
slide.addText("Rasayana Therapy in Long-term Asthma Control", {
  x:0.35,y:0.06,w:11.0,h:0.82,
  fontSize:30, bold:true, color:WHITE,
  fontFace:"Georgia", align:"center", valign:"middle"
});
// Subtitle
slide.addText("Tamaka Shwasa (Bronchial Asthma) — Ayurvedic Rejuvenation Approach", {
  x:0.35,y:0.88,w:11.0,h:0.38,
  fontSize:14, color:ACCENT, fontFace:"Calibri", align:"center", valign:"middle"
});
// PG info
slide.addText([
  {text:"PG Scholar  |  Dept. of Kaumarabhritya  |  Institute of Ayurveda", options:{fontSize:11, color:"D0EAD8"}}
], {x:0.35,y:1.26,w:11.0,h:0.42, align:"center", valign:"middle"});

// Sanskrit banner
rect(slide, 0.18,1.97,11.33,0.42, GOLD_LT, GOLD);
slide.addText([
  {text:'"Labhopayo hi shastaanaam rasaadeenam rasayanam" ', options:{italic:true,bold:true,color:HDR_DARK,fontSize:11.5}},
  {text:"— That which optimally nourishes Rasa is Rasayana.  ", options:{color:DARK_TXT,fontSize:10.5}},
  {text:"[C.S. Chi.1/1/7-8]", options:{bold:true,color:RUST,fontSize:10.5}},
], {x:0.3,y:1.98,w:11.1,h:0.4, align:"center", valign:"middle"});

// ════════════════════════════════════════════════════════════════════════
// ROW 1  y=2.5  —  INTRODUCTION + BRONCHUS DIAGRAM  (2-col)
// ════════════════════════════════════════════════════════════════════════
const R1Y = 2.5;

// ── Col A: Introduction (0.25 → 5.55, w=5.3) ─────────────────────────
secHeader(slide, 0.25,R1Y,5.3, "1.  Introduction — Tamaka Shwasa");
let ya = R1Y+0.44;

card(slide, 0.25,ya,5.3,1.68, MINT_BG, ACCENT);
addTxt(slide, 0.38,ya+0.1,5.05,1.52,[
  {text:"Tamaka Shwasa", options:{bold:true,color:HDR_DARK,fontSize:11}},
  {text:" is one of five types of Shwasa Roga — classified as a ", options:{fontSize:10}},
  {text:"Yapya Vyadhi", options:{bold:true,italic:true,color:RUST,fontSize:10}},
  {text:" (manageable, not permanently curable), analogous to modern bronchial asthma.\n\n", options:{fontSize:10}},
  {text:"Pathology: ", options:{bold:true,fontSize:10}},
  {text:"Vata-Kapha vitiation → obstruction of Pranavaha & Udakavaha Srotas → Pratiloma Gati of Prana Vayu → dyspnoea, wheezing, coryza.\n\n", options:{fontSize:10}},
  {text:"Types: ", options:{bold:true,fontSize:10}},
  {text:"(i) Pratamaka Shwasa — with fever & fainting (Pitta involvement)  |  (ii) Santamaka Shwasa — nocturnal suffocation  ", options:{fontSize:10}},
  {text:"[C.S. Chi.17]", options:{bold:true,color:RUST,fontSize:9.5}},
], 10, DARK_TXT, "left", 1.2);
ya += 1.74;

// Samprapti flow
secHeader(slide, 0.25,ya,5.3, "2.  Samprapti (Pathogenesis)", SLATE);
ya += 0.42;
const flow = ["Ruksha/Sheeta\nAhara-Vihara","Vata\nPrakopa","Kapha\nUpsurge","Srotas\nObstruction","TAMAKA\nSHWASA"];
const fW = (5.3-0.12)/flow.length - 0.05;
flow.forEach((label,i)=>{
  const fx = 0.25 + i*(fW+0.07);
  const isL = i===flow.length-1;
  slide.addShape(pres.ShapeType.rect, {
    x:fx, y:ya, w:fW, h:0.65,
    fill:{color: isL ? RUST : HDR_MID},
    line:{color: isL ? RUST : HDR_MID},
    rectRadius:0.06
  });
  slide.addText(label, {x:fx,y:ya,w:fW,h:0.65,fontSize:9,bold:isL,color:WHITE,align:"center",valign:"middle"});
  if (!isL) slide.addText("▶",{x:fx+fW,y:ya+0.16,w:0.08,h:0.3,fontSize:10,color:HDR_LITE,align:"center"});
});
ya += 0.78;

// Nidana table
secHeader(slide, 0.25,ya,5.3, "3.  Nidana — Classical Comparative Reference", SLATE);
ya += 0.42;
const nR=[
  ["Causative Factor","C.S.","S.S.","A.H.","M.N."],
  ["Rukshana (dry food)","✓","✓","—","✓"],
  ["Sheeta Ahara (cold food)","✓","✓","—","✓"],
  ["Dhuma/Raja (smoke/dust)","✓","✓","✓","✓"],
  ["Ativyayama (excess exertion)","✓","✓","—","✓"],
  ["Sheeta Sthanivasa (cold climate)","✓","—","✓","✓"],
];
const nCW=[2.85,0.62,0.62,0.62,0.57];
nR.forEach((row,ri)=>{
  let cx=0.25;
  row.forEach((cell,ci)=>{
    const isH=ri===0;
    slide.addShape(pres.ShapeType.rect, {
      x:cx,y:ya+ri*0.34,w:nCW[ci],h:0.34,
      fill:{color: isH?SLATE:(ri%2===0?WHITE:"EEF8F3")},
      line:{color: isH?SLATE:"C8E6C9",width:0.5}
    });
    slide.addText(cell,{
      x:cx+(ci===0?0.06:0),y:ya+ri*0.34,w:nCW[ci]-(ci===0?0.08:0),h:0.34,
      fontSize:isH?9:9.5, bold:isH||ci===0,
      color: isH?WHITE:(cell==="✓"?HDR_MID:(cell==="—"?"AAAAAA":DARK_TXT)),
      align:ci===0?"left":"center", valign:"middle"
    });
    cx+=nCW[ci];
  });
});
ya += nR.length*0.34+0.08;

// ── Col B: Bronchus cross-section image (6.14 → 11.44, w=5.3) ─────────
secHeader(slide, 6.14,R1Y,5.3, "4.  Tamaka Shwasa — Pranavaha Srotas Dushti");
const imgB = imgs[2];
if (!imgB.error) {
  card(slide, 6.14,R1Y+0.44,5.3,3.92, WHITE, ACCENT);
  slide.addImage({data:imgB.base64, x:6.2,y:R1Y+0.5,w:5.18,h:3.5});
}
// Caption
slide.addText([
  {text:"Ayurvedic parallel: ",options:{bold:true,color:HDR_MID,fontSize:10}},
  {text:"Srotodushti → Pinasa (coryza) + Ghurghurak (wheeze) + Shwasa (dyspnoea) ",options:{fontSize:10}},
  {text:"[C.S. Chi.17/14]",options:{bold:true,color:RUST,fontSize:9.5}},
],{x:6.14,y:R1Y+4.4,w:5.3,h:0.38, align:"left", valign:"middle"});

// ════════════════════════════════════════════════════════════════════════
// ROW 2  y≈7.1  —  RASAYANA CONCEPT (full width)
// ════════════════════════════════════════════════════════════════════════
const R2Y = 7.1;
secHeader(slide, 0.25,R2Y,11.19, "5.  Rasayana — Definition, Classification & Benefits  [C.S. Chi.1/1/7-8 | S.S. Su.1/15]");
let yr2 = R2Y+0.44;

// Definition boxes side by side
const defW = 5.55;
card(slide, 0.25,yr2,defW,0.88, GOLD_LT, GOLD);
slide.addText([
  {text:'"Labhopayo hi shastaanaam rasaadeenam rasayanam"\n',options:{italic:true,bold:true,color:HDR_DARK,fontSize:10.5}},
  {text:"The means to achieve optimum utilisation of Rasa is Rasayana.  ",options:{fontSize:9.5}},
  {text:"[C.S. Chi.1/1/7-8]",options:{bold:true,color:RUST,fontSize:9.5}},
],{x:0.38,y:yr2+0.07,w:defW-0.24,h:0.76, valign:"top"});

card(slide, 5.89,yr2,5.55,0.88, MINT_BG, ACCENT);
slide.addText([
  {text:'"Rasayanam tad uktam yat jaravyadhinashanam"\n',options:{italic:true,bold:true,color:HDR_DARK,fontSize:10.5}},
  {text:"That which destroys old age and disease is Rasayana.  ",options:{fontSize:9.5}},
  {text:"[S.S. Su.1/15]",options:{bold:true,color:RUST,fontSize:9.5}},
],{x:6.02,y:yr2+0.07,w:5.28,h:0.76, valign:"top"});
yr2 += 0.96;

// Classification + Benefits side by side
// Classification (5-col boxes)
const classCW = 11.19/5 - 0.05;
const classData = [
  {type:"Naimittika\nRasayana",ref:"C.S. Chi.1",desc:"Disease-specific\nrejuvenation\n→ Direct for Shwasa",col:HDR_MID},
  {type:"Kamya\nRasayana",ref:"C.S. Chi.1",desc:"Vyadhikshamatva\n(Immunity)\nOjas strengthening",col:SLATE},
  {type:"Kutipraveshika",ref:"C.S. Chi.1/4/28",desc:"Indoor regimen\nMost potent\nSevere cases",col:HDR_DARK},
  {type:"Vatatapika",ref:"C.S. Chi.1/4/28",desc:"Outdoor/ambulatory\nMild-moderate\nChildren preferred",col:"2E7D52"},
  {type:"Medhya\nRasayana",ref:"C.S. Chi.10/62",desc:"Brain tonic\nBrahmi, Shankhapushpi\nConcomitant therapy",col:PURPLE},
];
classData.forEach((c,i)=>{
  const cx = 0.25+i*(classCW+0.06);
  slide.addShape(pres.ShapeType.rect,{x:cx,y:yr2,w:classCW,h:1.32,fill:{color:c.col},line:{color:c.col},rectRadius:0.08});
  slide.addText(c.type,{x:cx+0.06,y:yr2+0.05,w:classCW-0.12,h:0.46,fontSize:11,bold:true,color:WHITE,align:"center",valign:"middle"});
  slide.addText(c.ref,{x:cx+0.06,y:yr2+0.52,w:classCW-0.12,h:0.22,fontSize:9,italic:true,color:"CCEECC",align:"center"});
  slide.addText(c.desc,{x:cx+0.06,y:yr2+0.74,w:classCW-0.12,h:0.52,fontSize:9,color:"E8F5EE",align:"center",valign:"top"});
});
yr2 += 1.4;

// Benefits (6 icons row)
const bens=[
  ["Deergham Ayuh","Longevity","⏳"],
  ["Arogya","Disease-free","💚"],
  ["Deha Bala","Physical strength","💪"],
  ["Swara","Good voice","🗣️"],
  ["Medha/Smruti","Memory & intellect","🧠"],
  ["Vyadhikshamatva","Immune resilience","🛡️"],
];
const bW2=(11.19)/6-0.05;
bens.forEach((b,i)=>{
  const bx=0.25+i*(bW2+0.06);
  card(slide,bx,yr2,bW2,0.62,i%2===0?"E3F4EC":"EBF7F1",ACCENT);
  slide.addText([
    {text:b[0]+"\n",options:{bold:true,color:HDR_MID,fontSize:9.5}},
    {text:b[1],options:{color:DARK_TXT,fontSize:9}},
  ],{x:bx+0.05,y:yr2+0.04,w:bW2-0.1,h:0.56,align:"center",valign:"middle"});
});
yr2 += 0.7;

// ════════════════════════════════════════════════════════════════════════
// ROW 3  y≈10.0  —  RASAYANA DRUGS (full width) + HERB IMAGE
// ════════════════════════════════════════════════════════════════════════
const R3Y = yr2+0.08;
secHeader(slide, 0.25,R3Y,11.19, "6.  Key Rasayana Drugs for Shwasa — Classical References & Modern Correlation");
let yr3 = R3Y+0.44;

// Drug cards: 4 in a row
const drugs = [
  {
    name:"Chyawanprasha Avaleha",
    ref:"C.S. Chi.1/1/62-74",
    tag:"Paramukta Rasayana",
    dose:"1-2 tsp with warm milk, BD",
    desc:"Indicated for Kasa, Shwasa, Uroroga, Kshataksheena. Key herbs: Amalaki, Pippali, Guduchi, Ashwagandha, Dashamula",
    action:"Immunomodulator • Antioxidant (Vit C) • Adaptogen",
    col:"E0F2EA", border:HDR_MID
  },
  {
    name:"Agastya Haritaki Rasayana",
    ref:"C.S. Chi.17/57-62",
    tag:"Pranavaha Srotas Rasayana",
    dose:"6–12 g BD with honey",
    desc:"100 Haritaki + Dashamula + Pippali + Shunthi + Maricha + Ghrita. Srotoshodhana + Balya action on respiratory channels",
    action:"Bronchodilatory • Expectorant • Anti-inflammatory",
    col:"E8EAF6", border:PURPLE
  },
  {
    name:"Pippali (Vardhamana) Rasayana",
    ref:"C.S. Chi.1/3/32-35",
    tag:"Deepana-Pachana Rasayana",
    dose:"Graduated dose (Vardhamana krama)",
    desc:"Corrects Ama → unblocks Pranavaha Srotas. Piperine bioenhances co-administered drugs. Kaphahara + Vatanulomana action",
    action:"Bronchodilator • Piperine bioenhancer • Mast cell stabilizer",
    col:"FFF8E1", border:GOLD
  },
  {
    name:"Vasa Avaleha",
    ref:"C.S. Chi.1/3; A.H. Chi.",
    tag:"Srotas Rasayana via oral-mucosal route",
    dose:"6–12 g BD with honey",
    desc:"Adhatoda vasica + Pippali + Madhu. Avaleha form = oral-mucosal targeted delivery to Pranavaha Srotas. Kapha-Vatahara",
    action:"Vasicine → Bronchodilation • Mucolytic • Expectorant",
    col:"FCE4EC", border:RUST
  },
];
const dW=(11.19)/4-0.08;
drugs.forEach((d,i)=>{
  const dx=0.25+i*(dW+0.1);
  card(slide,dx,yr3,dW,2.32,d.col,d.border);
  // Header strip
  rect(slide,dx,yr3,dW,0.38,d.border,d.border,0.07);
  slide.addText(d.name,{x:dx+0.06,y:yr3,w:dW-0.12,h:0.38,fontSize:10,bold:true,color:WHITE,align:"left",valign:"middle"});
  // Tag badge
  rect(slide,dx+0.06,yr3+0.44,dW-0.12,0.22,WHITE,d.border,0.04);
  slide.addText(d.tag,{x:dx+0.07,y:yr3+0.44,w:dW-0.14,h:0.22,fontSize:8.5,bold:true,color:d.border,align:"center",valign:"middle"});
  // Ref
  slide.addText(d.ref,{x:dx+0.06,y:yr3+0.7,w:dW-0.12,h:0.22,fontSize:8.5,italic:true,color:RUST,align:"left",valign:"middle"});
  // Dose
  slide.addText([{text:"Dose: ",options:{bold:true}},{text:d.dose,options:{}}],
    {x:dx+0.06,y:yr3+0.94,w:dW-0.12,h:0.22,fontSize:9,color:DARK_TXT,valign:"middle"});
  // Description
  slide.addText(d.desc,{x:dx+0.06,y:yr3+1.18,w:dW-0.12,h:0.62,fontSize:9,color:DARK_TXT,valign:"top",lineSpacingMultiple:1.15});
  // Action
  rect(slide,dx+0.06,yr3+1.84,dW-0.12,0.4,WHITE,d.border,0.04);
  slide.addText([{text:"Modern: ",options:{bold:true,color:d.border}},{text:d.action,options:{color:DARK_TXT}}],
    {x:dx+0.08,y:yr3+1.86,w:dW-0.16,h:0.36,fontSize:8.5,valign:"middle"});
});
yr3 += 2.4;

// ════════════════════════════════════════════════════════════════════════
// ROW 4  y≈~12.8  —  HERBS IMAGE + PROCEDURE IMAGE side by side
// ════════════════════════════════════════════════════════════════════════
const R4Y = yr3+0.08;
secHeader(slide, 0.25,R4Y,5.55, "7.  Rasayana Dravyas — Botanical Illustrations");
secHeader(slide, 5.89,R4Y,5.55, "8.  Shodhana Poorva Karma + Procedures", HDR_DARK);

const imgH = imgs[0]; // herbs
const imgP = imgs[1]; // procedures
if (!imgH.error) {
  card(slide, 0.25,R4Y+0.44,5.55,2.48, WHITE, ACCENT);
  slide.addImage({data:imgH.base64, x:0.3,y:R4Y+0.5,w:5.43,h:2.38});
}
if (!imgP.error) {
  card(slide, 5.89,R4Y+0.44,5.55,2.48, WHITE, HDR_MID);
  slide.addImage({data:imgP.base64, x:5.94,y:R4Y+0.5,w:5.43,h:2.38});
}

// ════════════════════════════════════════════════════════════════════════
// ROW 5  y≈~15.7  —  SWARNA PRASHAN + CONCLUSION (side by side in bottom band)
// ════════════════════════════════════════════════════════════════════════
const R5Y = R4Y+3.06;
// Swarna Prashan
secHeader(slide, 0.25,R5Y,5.55, "9.  Swarna Prashan — Kaumarabhritya Rasayana", GOLD.replace("#","")?"C9A84C":SLATE);
const spY = R5Y+0.44;
card(slide,0.25,spY,5.55,1.65, GOLD_LT, GOLD);
slide.addText([
  {text:'"Suvarna prashana hi etat medha agni bala vardhanam, ayushyam mangalam punyam…"\n',options:{italic:true,bold:true,color:HDR_DARK,fontSize:9.5}},
  {text:"[Kashyapa Samhita, Leha Adhyaya]\n\n",options:{bold:true,color:RUST,fontSize:9}},
  {text:"• Gold (colloidal) + Vacha + Brahmi + Ashwagandha + Ghrita + Honey\n",options:{fontSize:9.5}},
  {text:"• Administered on Pushya Nakshatra (monthly) for children <5 yrs\n",options:{fontSize:9.5}},
  {text:"• Enhances Vyadhikshamatva: IgE regulation, phagocytic activity, T-cell modulation\n",options:{fontSize:9.5}},
  {text:"• Ref: A.H. Uttarasthana 1/25 | Kashyapa Samhita, Leha Adhyaya",options:{bold:true,color:RUST,fontSize:9}},
],{x:0.38,y:spY+0.08,w:5.28,h:1.5,valign:"top",lineSpacingMultiple:1.2});

// Conclusion
secHeader(slide, 5.89,R5Y,5.55, "10. Conclusion & Significance", RUST);
card(slide,5.89,spY,5.55,1.65, HDR_DARK, HDR_MID);
const concs=[
  "Tamaka Shwasa = Yapya Vyadhi ↔ Modern asthma: incurable but controllable",
  "Shodhana (purification) MUST precede Rasayana [C.S. Chi.1/4]",
  "Naimittika Rasayana drugs provide Pranavaha Srotas-specific rejuvenation",
  "Swarna Prashan: exclusive pediatric Rasayana for Vyadhikshamatva",
  "Nitya Sevana + Ritu Anusara reduces attack frequency & severity",
  "Epigenetic basis validated [Bhat et al. 2023, PMID: 37018893]",
];
concs.forEach((c,i)=>{
  slide.addText([
    {text:"✦ ",options:{color:GOLD,bold:true,fontSize:10}},
    {text:c,options:{color:WHITE,fontSize:9.5}},
  ],{x:6.0,y:spY+0.08+i*0.26,w:5.35,h:0.24,valign:"middle"});
});

// ════════════════════════════════════════════════════════════════════════
// REFERENCES FOOTER
// ════════════════════════════════════════════════════════════════════════
rect(slide,0.18,16.16,11.33,0.22, SLATE, SLATE);
slide.addText([
  {text:"References: ",options:{bold:true,color:GOLD,fontSize:7.5}},
  {text:"1.C.S.Chi.1/1/7-8  |  2.C.S.Chi.1/1/62-74  |  3.C.S.Chi.17/57-62  |  4.C.S.Chi.1/3/32-35  |  5.S.S.Su.1/15  |  6.A.H.Ni.4/3  |  7.Kashyapa Samhita, Leha Adhyaya  |  8.A.H.Uttarasthana 1/25  |  9.Bhat S et al. J Ayurveda Integr Med 2023 [PMID:37018893]",options:{color:"B0D4BE",fontSize:7.5}},
],{x:0.25,y:16.17,w:11.2,h:0.2,valign:"middle",align:"left"});

// ════════════════════════════════════════════════════════════════════════
// SAVE
// ════════════════════════════════════════════════════════════════════════
pres.writeFile({fileName:"/home/daytona/workspace/rasayana-poster/Rasayana_A3_Portrait_Final.pptx"})
  .then(()=>console.log("✅ Portrait A3 poster saved!"))
  .catch(err=>console.error("❌",err));

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