/* ==========================================================================
   eMagazine Báo Kinh Tế - Chính Luận: HTX & Nông Nghiệp Công Nghệ Cao Phú Thọ
   Design System & Styling
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,600&family=Inter:wght@300;400;500;600;700;800&family=Manrope:wght@400;600;700;800&display=swap');

:root {
  /* Color Palette: Economic Emerald + Deep Slate Navy + Clean Warm White + Gold Accent */
  --bg-primary: #FAFBF9;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #F1F5F2;
  --bg-navy-dark: #0A192F;
  --bg-navy-card: #112240;

  --text-main: #1E293B;
  --text-muted: #475569;
  --text-light: #94A3B8;
  --text-inverse: #F8FAFC;

  --brand-emerald-dark: #064E3B;
  --brand-emerald: #0F766E;
  --brand-emerald-bright: #10B981;
  --brand-emerald-light: #D1FAE5;
  --brand-emerald-subtle: #ECFDF5;

  --brand-navy: #0F172A;
  --brand-navy-accent: #1E3A8A;

  --accent-gold: #D97706;
  --accent-gold-bright: #F59E0B;
  --accent-gold-bg: #FEF3C7;
  --accent-terracotta: #C2410C;

  --border-light: #E2E8F0;
  --border-emerald: #A7F3D0;

  /* Typography */
  --font-heading: 'Be Vietnam Pro', 'Manrope', -apple-system, sans-serif;
  --font-body: 'Inter', 'Be Vietnam Pro', -apple-system, sans-serif;

  --font-size-body-desktop: 1.1875rem;
  /* ~19px */
  --font-size-body-mobile: 1.0625rem;
  /* ~17px */

  --line-height-body: 1.8;
  --line-height-heading: 1.25;

  --container-max-width: 900px;
  --container-wide-width: 1200px;

  --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.07);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.1);
  --shadow-emerald: 0 12px 32px rgba(16, 185, 129, 0.15);
}

/* Reset & Global */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-main);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-body-desktop);
  line-height: var(--line-height-body);
  color: var(--text-main);
  overflow-x: hidden;
}

/* Base Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: var(--line-height-heading);
  color: var(--brand-navy);
  letter-spacing: -0.02em;
}

p {
  margin-bottom: 1.8rem;
  font-size: var(--font-size-body-desktop);
  color: var(--text-main);
  text-align: justify;
}

@media (max-width: 768px) {
  p {
    font-size: var(--font-size-body-mobile);
    text-align: left;
    margin-bottom: 1.5rem;
  }
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Layout Wrappers */
.emagazine-wrapper {
  width: 100%;
  position: relative;
}

.content-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.content-container-wide {
  max-width: var(--container-wide-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Custom Scroll Progress Bar */
.scroll-progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: rgba(226, 232, 240, 0.4);
  z-index: 1000;
}

.scroll-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--brand-emerald-dark), var(--brand-emerald-bright), var(--accent-gold));
  transition: width 0.1s ease-out;
}

/* ==========================================================================
   HEADER & HOOK (Opening)
   ========================================================================== */
.header-hero {
  padding: 4.5rem 0 3rem;
  background: linear-gradient(180deg, #F0FDFA 0%, var(--bg-primary) 100%);
  border-bottom: 1px solid var(--border-light);
  position: relative;
  overflow: hidden;
}

.header-hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
  pointer-events: none;
}

.magazine-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brand-emerald);
  margin-bottom: 1.5rem;
  background: var(--brand-emerald-light);
  padding: 0.4rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border-emerald);
}

.magazine-kicker::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--brand-emerald-bright);
  border-radius: 50%;
}

.hero-title {
  font-size: clamp(2.3rem, 5.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.18;
  color: var(--brand-navy);
  margin-bottom: 2rem;
  letter-spacing: -0.03em;
}

.hero-sapo {
  font-size: clamp(1.25rem, 2.2vw, 1.5rem);
  line-height: 1.65;
  font-weight: 500;
  color: var(--brand-emerald-dark);
  background: #FFFFFF;
  padding: 2.2rem 2.5rem;
  border-radius: 16px;
  border-left: 6px solid var(--brand-emerald-bright);
  box-shadow: var(--shadow-md);
  margin-bottom: 3.5rem;
  font-style: italic;
  text-align: left;
}

/* Hook Visual Metaphor Chain */
.hook-visual-container {
  margin: 3.5rem 0 4rem;
  background: var(--bg-navy-dark);
  border-radius: 24px;
  padding: 3rem 2rem;
  color: var(--text-inverse);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.hook-visual-container::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--brand-emerald-bright), var(--accent-gold), var(--brand-emerald-bright));
}

.visual-metaphor-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.visual-metaphor-title {
  font-size: 1.15rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--brand-emerald-bright);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.visual-metaphor-subtitle {
  font-size: 1.8rem;
  color: #FFFFFF;
  font-weight: 800;
}

.chain-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  position: relative;
  z-index: 2;
}

.chain-node {
  flex: 1;
  min-width: 120px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  padding: 1.2rem 0.8rem;
  border-radius: 14px;
  text-align: center;
  transition: var(--transition-smooth);
  position: relative;
}

.chain-node:hover {
  transform: translateY(-5px);
  background: rgba(16, 185, 129, 0.15);
  border-color: var(--brand-emerald-bright);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.chain-node-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(245, 158, 11, 0.2));
  border-radius: 12px;
  color: var(--brand-emerald-bright);
}

.chain-node-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--brand-emerald-bright);
  fill: none;
  stroke-width: 2;
}

.chain-node-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  color: #FFFFFF;
  text-transform: uppercase;
}

.chain-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold-bright);
  animation: pulseArrow 2s infinite ease-in-out;
}

.chain-connector svg {
  width: 24px;
  height: 24px;
  stroke: var(--accent-gold-bright);
  fill: none;
  stroke-width: 2.5;
}

@keyframes pulseArrow {

  0%,
  100% {
    transform: translateX(0);
    opacity: 0.6;
  }

  50% {
    transform: translateX(5px);
    opacity: 1;
  }
}

.central-hero-graphic {
  margin-top: 3rem;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  position: relative;
}

.central-hero-graphic img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  object-position: center;
  transition: transform 0.8s ease;
}

.central-hero-graphic:hover img {
  transform: scale(1.03);
}

.graphic-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(0deg, rgba(10, 25, 47, 0.95) 0%, rgba(10, 25, 47, 0) 100%);
  padding: 2rem 1.5rem 1.2rem;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.graphic-caption svg {
  width: 20px;
  height: 20px;
  stroke: var(--brand-emerald-bright);
  flex-shrink: 0;
}

/* Section Text Styling */
.section-body {
  padding: 3rem 0;
}

.lead-paragraph {
  font-size: clamp(1.2rem, 1.8vw, 1.3rem);
  line-height: 1.8;
  font-weight: 500;
  color: var(--brand-navy);
  margin-bottom: 2rem;
}

/* ==========================================================================
   INFOGRAPHICS STYLING (MIN 18PX TEXT ON DESKTOP)
   ========================================================================== */
/* Full-Width Hero Banner with Overlaid Title & Giant HTX Typography */
.hero-banner-full {
  width: 100%;
  position: relative;
  margin-top: 1rem;
  margin-bottom: 3.5rem;
  height: clamp(650px, 82vh, 880px);
  min-height: 600px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: flex-end;
}

.hero-banner-full img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 1.2s ease;
  z-index: 1;
}

.hero-banner-full:hover img {
  transform: scale(1.03);
}

.hero-banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(10, 25, 47, 0.2) 0%, rgba(10, 25, 47, 0.65) 50%, rgba(10, 25, 47, 0.95) 100%);
  z-index: 2;
  pointer-events: none;
}

.hero-banner-content {
  position: relative;
  z-index: 3;
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 4vw, 3.5rem) clamp(2.5rem, 6vh, 4.5rem);
  color: #FFFFFF;
  box-sizing: border-box;
}

.hero-title-overlay {
  font-family: var(--font-heading);
  margin-top: 1rem;
}

.giant-htx-wrapper {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
}

.giant-htx {
  font-size: clamp(5.5rem, 16vw, 11rem);
  font-weight: 900;
  line-height: 0.82;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, #FFFFFF 0%, #34D399 45%, #F59E0B 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.75));
  font-family: var(--font-heading);
  text-transform: uppercase;
}

.title-sub-text {
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.25;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.8);
  letter-spacing: -0.02em;
}

@media (max-width: 768px) {
  .hero-banner-full {
    height: clamp(480px, 75vh, 620px);
    min-height: 480px;
  }

  .giant-htx {
    font-size: clamp(3.8rem, 18vw, 6.5rem);
    line-height: 0.9;
  }

  .title-sub-text {
    font-size: clamp(1.3rem, 5vw, 1.85rem);
    line-height: 1.3;
  }

  .hero-banner-content {
    padding-bottom: 2.2rem;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

/* ==========================================================================
   FULL-WIDTH BREAKOUT INFOGRAPHICS (CLEAN 100% BLOCK STRUCTURE)
   ========================================================================== */
.infographic-wrapper-wide {
  width: 100%;
  margin: 4rem 0;
  padding: 3.5rem 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
  box-sizing: border-box;
}

.infographic-wrapper-wide.dark-theme {
  background: var(--bg-navy-dark);
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.1);
}

.infographic-wrapper-wide.subtle-theme {
  background: linear-gradient(180deg, #F0FDFA 0%, #FAFBF9 100%);
}

.infographic-inner-content {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 1.5rem;
  box-sizing: border-box;
}

.infographic-wrapper {
  margin: 4rem 0;
  background: var(--bg-surface);
  border-radius: 24px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-md);
  padding: 3rem 3.5rem;
  position: relative;
}

@media (max-width: 768px) {
  .infographic-wrapper {
    padding: 1.8rem 1.2rem;
  }

  .infographic-inner-content {
    padding: 0 1rem;
  }
}

.infographic-header {
  margin-bottom: 2rem;
  border-bottom: 2px solid var(--brand-emerald-subtle);
  padding-bottom: 1rem;
}

.infographic-badge {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brand-emerald);
  background: var(--brand-emerald-light);
  padding: 0.3rem 0.8rem;
  border-radius: 6px;
  margin-bottom: 0.5rem;
}

.infographic-title {
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  font-weight: 800;
  color: var(--brand-navy);
}

/* Infographic 1: Bức tranh HTX nông nghiệp Phú Thọ */
.info-grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.stat-card-big {
  background: linear-gradient(135deg, #F0FDFA 0%, #ECFDF5 100%);
  border: 1px solid var(--border-emerald);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  transition: var(--transition-smooth);
}

.stat-card-big:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-emerald);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 5vw, 4.2rem);
  font-weight: 900;
  line-height: 1;
  color: var(--brand-emerald-dark);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
}

.stat-label {
  font-size: 1.25rem;
  /* Strictly >= 18px */
  font-weight: 700;
  color: var(--text-main);
}

.svg-network-container {
  width: 100%;
  height: 280px;
  background: var(--bg-navy-dark);
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   SECTIONS & CHAPTER HEADINGS
   ========================================================================== */
.chapter-divider {
  margin: 5rem 0 3.5rem;
  padding-top: 3.5rem;
  border-top: 2px solid var(--border-light);
  position: relative;
}

.chapter-number {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent-gold);
  margin-bottom: 0.75rem;
}

.chapter-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.2;
  color: var(--brand-navy);
  margin-bottom: 2rem;
}

/* Chapter Visual Journey Flow */
.journey-path-bar {
  background: linear-gradient(135deg, var(--brand-navy), var(--bg-navy-card));
  color: #FFFFFF;
  padding: 1.5rem;
  border-radius: 16px;
  margin-bottom: 3rem;
  box-shadow: var(--shadow-md);
}

.journey-path-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brand-emerald-bright);
  font-weight: 700;
  margin-bottom: 1rem;
}

.journey-steps {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.journey-step {
  font-size: 1rem;
  /* 16-18px */
  font-weight: 700;
  color: #FFFFFF;
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.08);
  padding: 0.6rem 1.1rem;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.journey-step-arrow {
  color: var(--accent-gold-bright);
  font-weight: 900;
}

/* Case Study Section (Infographic 2) */
.case-study-vertical {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.case-study-img {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.case-study-img img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.highlights-badge-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.highlight-box {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 1.25rem;
  text-align: center;
}

.highlight-box.gold-accent {
  border-color: var(--accent-gold);
  background: var(--accent-gold-bg);
}

.highlight-val {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  /* Strictly >= 18px */
  font-weight: 800;
  color: var(--brand-navy);
  margin-bottom: 0.25rem;
}

.highlight-desc {
  font-size: 1rem;
  /* >= 16px */
  font-weight: 600;
  color: var(--text-muted);
}

.flow-step-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.flow-step-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-primary);
  padding: 0.9rem 1.2rem;
  border-radius: 12px;
  border: 1px solid var(--border-light);
  font-size: 1.125rem;
  /* 18px */
  font-weight: 700;
  color: var(--brand-navy);
}

.flow-step-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--brand-emerald-light);
  color: var(--brand-emerald-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.flow-step-icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

/* Quote Statement Block */
.statement-quote-block {
  margin: 4.5rem 0;
  background: linear-gradient(135deg, var(--brand-emerald-dark) 0%, var(--brand-navy) 100%);
  color: #FFFFFF;
  padding: 3.5rem 3rem;
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  position: relative;
  text-align: center;
}

.quote-icon-lg {
  width: 48px;
  height: 48px;
  margin: 0 auto 1.5rem;
  opacity: 0.4;
  fill: var(--accent-gold-bright);
}

.statement-quote-text {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 800;
  line-height: 1.5;
  color: #FFFFFF;
  letter-spacing: -0.01em;
}

/* Infographic 3: Dữ liệu biến thành quyết định (Đà Bắc Greenhouse) */
.greenhouse-visual-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
  align-items: center;
}

.sensor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

.sensor-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  padding: 1.2rem;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
}

.sensor-icon {
  width: 42px;
  height: 42px;
  background: var(--brand-emerald-subtle);
  color: var(--brand-emerald);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sensor-icon svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

.sensor-name {
  font-size: 1.125rem;
  /* 18px */
  font-weight: 700;
  color: var(--brand-navy);
}

.greenhouse-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-light);
}

.gh-stat {
  text-align: center;
  background: var(--bg-primary);
  padding: 1.2rem 0.8rem;
  border-radius: 12px;
  border: 1px solid var(--border-light);
}

.gh-val {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  /* Strictly large */
  font-weight: 900;
  color: var(--brand-emerald-dark);
  margin-bottom: 0.3rem;
}

.gh-lbl {
  font-size: 1.125rem;
  /* 18px desktop */
  font-weight: 600;
  color: var(--text-muted);
}

/* ==========================================================================
   PART 2: LIÊN KẾT ĐỂ KHÔNG ĐƠN ĐỘC
   ========================================================================== */
.network-bg-wrapper {
  background: linear-gradient(180deg, var(--bg-primary) 0%, #F1F5F9 50%, var(--bg-primary) 100%);
  position: relative;
}

/* Infographic 4: Trường Thịnh Diagram */
.network-diagram-container {
  background: var(--bg-navy-dark);
  color: #FFFFFF;
  border-radius: 24px;
  padding: 3rem 2rem;
  margin: 3rem 0;
  box-shadow: var(--shadow-lg);
}

.center-htx-node {
  background: linear-gradient(135deg, var(--brand-emerald-dark), var(--brand-emerald));
  padding: 1.8rem 2.5rem;
  border-radius: 20px;
  text-align: center;
  border: 2px solid var(--brand-emerald-bright);
  box-shadow: 0 0 30px rgba(16, 185, 129, 0.3);
  max-width: 400px;
  margin: 0 auto 2.5rem;
}

.center-htx-title {
  font-size: 1.4rem;
  /* >= 18px */
  font-weight: 900;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
}

.center-htx-sub {
  font-size: 1.125rem;
  /* 18px */
  color: var(--brand-emerald-light);
  font-weight: 600;
}

.outer-nodes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.node-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 1.5rem;
  border-radius: 16px;
  text-align: center;
  transition: var(--transition-smooth);
}

.node-card:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--accent-gold);
  transform: translateY(-4px);
}

.node-val {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  /* >= 18px */
  font-weight: 800;
  color: var(--accent-gold-bright);
  margin-bottom: 0.4rem;
}

.node-lbl {
  font-size: 1.125rem;
  /* 18px desktop */
  font-weight: 600;
  color: #E2E8F0;
}

/* Infographic 5: 207 Chuỗi cung ứng */
.infographic-207-container {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2.5rem;
  align-items: center;
}

.big-207-focus {
  background: linear-gradient(135deg, #ECFDF5 0%, #D1FAE5 100%);
  border: 2px solid var(--brand-emerald-bright);
  border-radius: 24px;
  padding: 3rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-emerald);
}

.number-207 {
  font-family: var(--font-heading);
  font-size: clamp(4rem, 8vw, 6.5rem);
  font-weight: 900;
  line-height: 1;
  color: var(--brand-emerald-dark);
  margin-bottom: 1rem;
}

.label-207 {
  font-size: 1.35rem;
  /* Strictly >= 18px */
  font-weight: 800;
  color: var(--brand-navy);
  line-height: 1.4;
}

.breakdown-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.breakdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface-elevated);
  padding: 1.2rem 1.8rem;
  border-radius: 16px;
  border: 1px solid var(--border-light);
}

.breakdown-num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 900;
  color: var(--brand-emerald);
}

.breakdown-txt {
  font-size: 1.1875rem;
  /* ~19px desktop */
  font-weight: 700;
  color: var(--brand-navy);
}

.retail-partners-bar {
  margin-top: 2rem;
  background: var(--bg-navy-dark);
  color: #FFFFFF;
  padding: 1.8rem;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.partner-logo-item {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  color: #FFFFFF;
  padding: 0.5rem 1.5rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.partner-logo-item.go {
  color: #EF4444;
  background: #FFFFFF;
}

.partner-logo-item.coop {
  color: #0284C7;
  background: #FFFFFF;
}

.partner-logo-item.win {
  color: #EA580C;
  background: #FFFFFF;
}

/* ==========================================================================
   PART 3: HỆ SINH THÁI ĐỔI MỚI SÁNG TẠO
   ========================================================================== */
/* Infographic 6: Concentric Ecosystem Map */
.ecosystem-concentric-container {
  background: var(--bg-navy-dark);
  color: #FFFFFF;
  border-radius: 24px;
  padding: 3.5rem 2rem;
  margin: 3.5rem 0;
  position: relative;
}

.concentric-rings {
  position: relative;
  max-width: 650px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.ring-core {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-terracotta));
  color: #FFFFFF;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 900;
  box-shadow: 0 0 30px rgba(245, 158, 11, 0.4);
  z-index: 10;
}

.ring-outer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  width: 100%;
}

.ring-node {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 1.2rem 0.8rem;
  border-radius: 16px;
  text-align: center;
  font-size: 1.125rem;
  /* 18px */
  font-weight: 700;
  color: #FFFFFF;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  transition: var(--transition-smooth);
}

.ring-node:hover {
  background: rgba(16, 185, 129, 0.2);
  border-color: var(--brand-emerald-bright);
}

.ring-node-icon {
  width: 38px;
  height: 38px;
  color: var(--brand-emerald-bright);
}

.ring-node-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

.ip-branches-flex {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.ip-tag {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid var(--border-emerald);
  color: #E2E8F0;
  padding: 0.6rem 1.2rem;
  border-radius: 30px;
  font-size: 1.125rem;
  /* 18px desktop */
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Infographic 7: Flywheel / Value Chain */
.flywheel-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.flywheel-banner {
  background: linear-gradient(135deg, var(--brand-emerald-subtle) 0%, #D1FAE5 100%);
  border-left: 6px solid var(--brand-emerald);
  padding: 2.2rem;
  border-radius: 16px;
}

.flywheel-message {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  /* >= 18px */
  font-weight: 800;
  color: var(--brand-emerald-dark);
  line-height: 1.5;
}

.flywheel-steps {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.flywheel-step-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  padding: 1.1rem 1.5rem;
  border-radius: 14px;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.flywheel-step-card:hover {
  transform: translateX(6px);
  border-color: var(--brand-emerald);
  box-shadow: var(--shadow-md);
}

.step-num-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--brand-emerald-dark);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-txt-lbl {
  font-size: 1.1875rem;
  /* ~19px desktop */
  font-weight: 700;
  color: var(--brand-navy);
}

/* ==========================================================================
   CLOSING & AUTHOR
   ========================================================================== */
.closing-section {
  padding: 5rem 0 4rem;
  background: linear-gradient(180deg, var(--bg-primary) 0%, #ECFDF5 100%);
  border-top: 2px solid var(--border-light);
}

.closing-visual-chain {
  background: var(--bg-navy-dark);
  color: #FFFFFF;
  padding: 3rem 2rem;
  border-radius: 24px;
  margin-bottom: 3.5rem;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.closing-chain-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  margin-bottom: 2.5rem;
}

.closing-node {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.7rem 1.4rem;
  border-radius: 30px;
  font-size: 1.125rem;
  /* 18px */
  font-weight: 700;
  color: #FFFFFF;
}

.closing-plus {
  color: var(--accent-gold-bright);
  font-weight: 900;
  font-size: 1.3rem;
}

.closing-result-box {
  display: inline-block;
  background: linear-gradient(135deg, var(--brand-emerald-bright), var(--brand-emerald-dark));
  padding: 1.2rem 3rem;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 900;
  color: #FFFFFF;
  box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4);
}

.closing-statement-huge {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  font-weight: 900;
  color: var(--brand-navy);
  text-align: center;
  margin-bottom: 2.5rem;
  line-height: 1.2;
}

.author-block {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.author-name {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--brand-navy);
}

.author-title {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Scroll Animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Footer Minimal */
.footer-minimal {
  padding: 2.5rem 0;
  background: var(--brand-navy);
  color: var(--text-light);
  text-align: center;
  font-size: 0.95rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ==========================================================================
   RESPONSIVE DESIGN (MOBILE & TABLET)
   ========================================================================== */
@media (max-width: 992px) {

  .info-grid-2col,
  .case-study-vertical,
  .greenhouse-visual-grid,
  .infographic-207-container,
  .flywheel-wrapper {
    grid-template-columns: 1fr;
  }

  .outer-nodes-grid,
  .ring-outer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .greenhouse-stats-row {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .chain-flow {
    flex-direction: column;
  }

  .chain-connector {
    transform: rotate(90deg);
    margin: 0.3rem 0;
  }

  .outer-nodes-grid,
  .ring-outer-grid,
  .greenhouse-stats-row,
  .sensor-grid,
  .highlights-badge-list {
    grid-template-columns: 1fr;
  }

  .infographic-wrapper {
    padding: 1.5rem;
  }

  .hero-sapo {
    padding: 1.5rem;
  }

  .closing-chain-flow {
    flex-direction: column;
  }

  .partner-logo-item {
    font-size: 1.2rem;
    padding: 0.4rem 1rem;
  }
}