/* ==========================================================================
   E-MAGAZINE DESIGN SYSTEM & STYLESHEET
   Chủ đề: HTX đưa khoa học vào cánh đồng lớn, kiến tạo chuỗi giá trị mới
   Phong cách: Báo chí dữ liệu hiện đại, tương phản cao, tối ưu đọc sâu
   ========================================================================== */

:root {
    /* Color Palette */
    --color-bg-light: #fbfbfa;
    --color-bg-card: #ffffff;
    --color-bg-card-alt: #f4f6f4;
    --color-bg-dark: #062b21;
    --color-bg-darker: #021a14;
    
    /* Primary / Accent colors */
    --color-primary: #064e3b;      /* Deep Forest Green */
    --color-primary-light: #059669;/* Emerald Green */
    --color-accent-teal: #0284c7;  /* Tech Blue/Cyan */
    --color-accent-gold: #d97706;  /* Harvest Gold / Amber */
    --color-accent-gold-light: #fbbf24;
    --color-organic-green: #16a34a;
    
    /* Editorial Neutral Shades */
    --color-text-main: #1e293b;     /* Slate-800 - High contrast reading */
    --color-text-lead: #0f172a;     /* Slate-900 */
    --color-text-muted: #475569;    /* Slate-600 */
    --color-text-light: #f8fafc;
    --color-text-light-muted: #cbd5e1;
    --color-border: #e2e8f0;
    --color-border-dark: rgba(255, 255, 255, 0.12);

    /* Typography */
    --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-serif: 'Merriweather', Georgia, 'Times New Roman', serif;
    --font-data: 'Plus Jakarta Sans', system-ui, sans-serif;

    /* Shadows & Radii */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 20px 35px -10px rgba(6, 78, 59, 0.15), 0 10px 15px -5px rgba(0, 0, 0, 0.05);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    /* Max Widths */
    --max-text-width: 760px;
    --max-content-width: 1180px;
}

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

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

body {
    font-family: var(--font-serif);
    font-size: 19px;
    line-height: 1.85;
    color: var(--color-text-main);
    background-color: var(--color-bg-light);
    overflow-x: hidden;
}

/* --------------------------------------------------------------------------
   Reading Progress Bar
   -------------------------------------------------------------------------- */
.reading-progress-track {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(0, 0, 0, 0.05);
    z-index: 1000;
}

.reading-progress-fill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, #10b981, #0284c7, #f59e0b);
    transition: width 0.1s cubic-bezier(0.2, 0.8, 0.2, 1);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.6);
}

/* --------------------------------------------------------------------------
   Layout Containers
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--max-content-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
}

.text-column {
    max-width: var(--max-text-width);
    margin-left: auto;
    margin-right: auto;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.editorial-hero {
    position: relative;
    min-height: 92vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: radial-gradient(circle at 80% 20%, #0d4a36 0%, #032119 70%, #01130e 100%);
    color: var(--color-text-light);
    padding: 100px 0 80px;
    overflow: hidden;
}

.hero-bg-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(6, 43, 33, 0.4) 0%, rgba(2, 26, 20, 0.95) 100%);
    pointer-events: none;
}

.hero-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.06;
    background-image: radial-gradient(#10b981 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 980px;
}

.badge-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.35);
    border-radius: var(--radius-full);
    color: #34d399;
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 28px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background-color: #34d399;
    border-radius: 50%;
    box-shadow: 0 0 8px #34d399;
}

.main-title {
    font-family: var(--font-heading);
    font-size: clamp(2.4rem, 5.5vw, 4.2rem);
    font-weight: 800;
    line-height: 1.18;
    letter-spacing: -0.02em;
    color: #ffffff;
    margin-bottom: 32px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
    font-family: var(--font-heading);
    font-size: 16px;
    color: var(--color-text-light-muted);
    margin-bottom: 40px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.meta-icon {
    width: 18px;
    height: 18px;
    color: #34d399;
}

.meta-text strong {
    color: #ffffff;
    font-weight: 600;
}

.meta-separator {
    color: rgba(255, 255, 255, 0.3);
}

/* Sapo Box */
.sapo-container {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-left: 4px solid var(--color-accent-gold);
    border-radius: var(--radius-md);
    padding: 32px 38px;
    text-align: left;
    margin-top: 10px;
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.25);
}

.sapo-paragraph {
    font-family: var(--font-heading);
    font-size: clamp(1.15rem, 2vw, 1.35rem);
    line-height: 1.75;
    color: #f1f5f9;
    font-weight: 400;
}

.sapo-paragraph + .sapo-paragraph {
    margin-top: 18px;
}

.scroll-indicator {
    position: relative;
    z-index: 2;
    margin-top: 40px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.6);
    font-family: var(--font-heading);
    font-size: 14px;
    letter-spacing: 0.5px;
    animation: bounce 2.2s infinite;
}

.scroll-arrow {
    width: 22px;
    height: 22px;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(8px); }
    60% { transform: translateY(4px); }
}

/* --------------------------------------------------------------------------
   Article Structure & Typography
   -------------------------------------------------------------------------- */
.article-body {
    padding-bottom: 80px;
}

.story-section {
    padding: 85px 0 45px;
    position: relative;
}

.story-section:not(:last-of-type)::after {
    content: "";
    display: block;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #10b981, #0284c7);
    margin: 80px auto 0;
    border-radius: 2px;
    opacity: 0.6;
}

.section-badge-wrapper {
    text-align: center;
    margin-bottom: 42px;
    padding: 0 20px;
}

.section-number {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 800;
    letter-spacing: 2.5px;
    color: var(--color-primary-light);
    margin-bottom: 12px;
    background: rgba(5, 150, 105, 0.08);
    padding: 4px 16px;
    border-radius: var(--radius-full);
}

.section-heading {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3.8vw, 2.75rem);
    font-weight: 800;
    color: var(--color-text-lead);
    line-height: 1.25;
    letter-spacing: -0.02em;
}

.body-p {
    font-family: var(--font-serif);
    font-size: 19px;
    line-height: 1.88;
    color: var(--color-text-main);
    margin-bottom: 28px;
}

.highlight-lead {
    font-weight: 700;
    color: #064e3b;
    border-left: 3px solid #10b981;
    padding-left: 20px;
}

/* Pull Quotes */
.pull-quote {
    margin: 48px 0;
    padding: 34px 40px;
    background: #f0fdf4;
    border-left: 5px solid var(--color-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    box-shadow: var(--shadow-sm);
}

.pull-quote blockquote {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 600;
    line-height: 1.7;
    color: #064e3b;
    font-style: italic;
}

/* Editorial Media */
.editorial-media-container {
    margin: 55px auto;
    max-width: 1040px;
}

.editorial-media {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.image-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background-color: #0f172a;
}

.responsive-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.editorial-media:hover .responsive-img {
    transform: scale(1.02);
}

.media-caption {
    padding: 18px 24px;
    font-family: var(--font-heading);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-muted);
    background: #ffffff;
    border-top: 1px solid var(--color-border);
}

.caption-marker {
    font-weight: 700;
    color: var(--color-primary);
}

/* ==========================================================================
   INFOGRAPHICS: TUÂN THỦ TẤT CẢ FONT SIZE >= 18PX
   ========================================================================== */
.infographic-container {
    margin: 60px auto;
}

.infographic-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    border: 1px solid #d1d5db;
    box-shadow: var(--shadow-lg);
    padding: 44px 40px;
    position: relative;
    overflow: hidden;
}

.infographic-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, #059669, #0284c7, #d97706);
}

.info-header {
    text-align: center;
    margin-bottom: 38px;
}

.info-tag {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 700;
    letter-spacing: 1.5px;
    color: #047857;
    margin-bottom: 12px;
}

.info-title {
    font-family: var(--font-heading);
    font-size: clamp(22px, 3.2vw, 32px); /* Tối thiểu 22px */
    font-weight: 800;
    color: #0f172a;
    line-height: 1.3;
}

/* --------------------------------------------------------------------------
   INFOGRAPHIC 1: Grid thống kê & Pipeline công nghệ
   -------------------------------------------------------------------------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-md);
    padding: 26px 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: #cbd5e1;
}

.stat-icon-wrap {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: #ecfdf5;
    color: #059669;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.stat-icon {
    width: 26px;
    height: 26px;
}

.stat-value-group {
    font-family: var(--font-data);
    font-size: 40px; /* Số lớn cực rõ */
    font-weight: 800;
    color: #064e3b;
    line-height: 1.1;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
    margin-bottom: 8px;
}

.stat-prefix {
    font-size: 30px;
    color: #059669;
}

.stat-unit {
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 700;
    color: #d97706;
    margin-left: 2px;
}

.stat-label {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 600;
    color: #334155;
    line-height: 1.4;
}

/* Pipeline Flow */
.diagram-wrapper {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--radius-md);
    padding: 32px 28px;
}

.diagram-title {
    font-family: var(--font-heading);
    font-size: 20px; /* Tối thiểu 18px */
    font-weight: 700;
    color: #064e3b;
    text-align: center;
    margin-bottom: 30px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tech-pipeline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    position: relative;
}

.pipeline-step {
    flex: 1;
    background: #ffffff;
    border: 1px solid #dcfce7;
    border-radius: var(--radius-md);
    padding: 24px 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.25s ease;
}

.pipeline-step:hover {
    transform: translateY(-3px);
    border-color: #86efac;
}

.step-badge {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 800;
    color: #059669;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.gold-badge {
    color: #b45309;
}

.step-icon-box {
    width: 60px;
    height: 60px;
    border-radius: 14px;
    background: #f0fdf4;
    color: #059669;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.gold-icon {
    background: #fef3c7;
    color: #d97706;
}

.pipeline-svg {
    width: 32px;
    height: 32px;
}

.step-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.step-name {
    font-family: var(--font-heading);
    font-size: 19px; /* Tối thiểu 18px */
    font-weight: 700;
    color: #0f172a;
    line-height: 1.35;
}

.step-desc {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 500;
    color: #475569;
    line-height: 1.4;
}

.pipeline-connector {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #059669;
}

.arrow-svg {
    width: 28px;
    height: 28px;
    stroke-width: 2.5;
}

.highlight-step {
    border-color: #fde68a;
    background: #fffbeb;
}

/* --------------------------------------------------------------------------
   INFOGRAPHIC 2: Thống kê Đồng Tháp & Chu trình tuần hoàn
   -------------------------------------------------------------------------- */
.sub-info-block {
    margin-bottom: 40px;
}

.sub-block-title {
    font-family: var(--font-heading);
    font-size: 21px; /* Tối thiểu 18px */
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 22px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.dot-indicator {
    width: 12px;
    height: 12px;
    background-color: #0284c7;
    border-radius: 50%;
    display: inline-block;
}

.green-dot {
    background-color: #059669;
}

.data-comparison-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.compare-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-md);
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.compare-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 14px;
    gap: 8px;
}

.compare-title {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 700;
    color: #334155;
    line-height: 1.35;
}

.badge-growth {
    background: #ecfdf5;
    color: #059669;
    border: 1px solid #a7f3d0;
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 800;
    padding: 2px 10px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-tag-alt {
    background: #eff6ff;
    color: #1d4ed8;
    border: 1px solid #bfdbfe;
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 700;
    padding: 2px 10px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.compare-main {
    font-family: var(--font-data);
    font-size: 38px;
    font-weight: 800;
    color: #0369a1;
    line-height: 1.15;
    margin-bottom: 12px;
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 6px;
}

.compare-unit {
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 700;
    color: #475569;
}

.compare-sub {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    color: #64748b;
    line-height: 1.45;
    border-top: 1px solid #e2e8f0;
    padding-top: 10px;
}

.compare-sub strong {
    color: #0f172a;
    font-weight: 700;
}

/* Circular Flow Styles */
.circular-block {
    background: #f7fee7;
    border: 1px solid #d9f99d;
    border-radius: var(--radius-md);
    padding: 34px 28px;
}

.circular-scope-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 16px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    padding: 16px 24px;
    border-radius: var(--radius-md);
    margin-bottom: 28px;
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
}

.scope-label {
    color: #64748b;
}

.scope-val strong {
    color: #166534;
}

.scope-divider {
    color: #cbd5e1;
}

.cycle-track {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.cycle-node.origin-node {
    background: #ffffff;
    border: 2px solid #84cc16;
    border-radius: var(--radius-md);
    padding: 22px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.node-badge {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 800;
    color: #4d7c0f;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.node-icon {
    width: 48px;
    height: 48px;
    color: #65a30d;
    margin-bottom: 8px;
}

.node-title {
    font-family: var(--font-heading);
    font-size: 22px; /* Tối thiểu 18px */
    font-weight: 700;
    color: #1a2e05;
}

.cycle-branch-split {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 20px;
}

.branch-path {
    background: #ffffff;
    border-radius: var(--radius-md);
    padding: 24px 20px;
    border: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
}

.branch-tag {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 800;
    color: #0369a1;
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 2px solid #e0f2fe;
}

.tag-loop {
    color: #15803d;
    border-bottom-color: #dcfce7;
}

.branch-box {
    margin-top: auto;
    margin-bottom: auto;
    text-align: center;
    padding: 16px;
    background: #f0f9ff;
    border-radius: var(--radius-sm);
}

.branch-title {
    font-family: var(--font-heading);
    font-size: 20px; /* Tối thiểu 18px */
    font-weight: 700;
    color: #0369a1;
    margin-bottom: 6px;
}

.branch-desc {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    color: #475569;
}

.circular-products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.prod-item {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-sm);
    padding: 16px 14px;
    text-align: center;
}

.prod-icon-box {
    font-size: 28px;
    margin-bottom: 6px;
}

.prod-name {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 700;
    color: #0f172a;
    line-height: 1.3;
    margin-bottom: 4px;
}

.prod-status {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    color: #059669;
    font-weight: 600;
}

.highlight-organic {
    background: #ecfdf5;
    border-color: #a7f3d0;
}

/* --------------------------------------------------------------------------
   INFOGRAPHIC 3: Thị trường toàn cầu & 4 Trụ cột
   -------------------------------------------------------------------------- */
.global-stats-row {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 20px;
    margin-bottom: 28px;
}

.global-stat-box {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-md);
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.primary-stat {
    background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
    border-color: #a7f3d0;
}

.stat-sup {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 700;
    color: #047857;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.stat-huge-number {
    font-family: var(--font-data);
    font-size: 48px;
    font-weight: 800;
    color: #064e3b;
    line-height: 1.1;
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 8px;
}

.huge-unit {
    font-size: 20px; /* Tối thiểu 18px */
    font-weight: 700;
    color: #d97706;
}

.stat-sub-text {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    color: #475569;
}

.markets-badge-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 12px 0;
}

.m-pill {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-full);
    padding: 6px 18px;
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 700;
    color: #0369a1;
    box-shadow: var(--shadow-sm);
}

/* Workforce Grid */
.workforce-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-md);
    padding: 28px 24px;
    margin-bottom: 36px;
    box-shadow: var(--shadow-sm);
}

.workforce-title {
    font-family: var(--font-heading);
    font-size: 20px; /* Tối thiểu 18px */
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 20px;
    text-align: center;
}

.workforce-grid {
    display: flex;
    align-items: center;
    justify-content: space-around;
    gap: 16px;
}

.wf-item {
    text-align: center;
    flex: 1;
}

.wf-val {
    font-family: var(--font-data);
    font-size: 26px; /* Tối thiểu 18px */
    font-weight: 800;
    color: #064e3b;
    margin-bottom: 6px;
}

.wf-lbl {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 500;
    color: #475569;
    line-height: 1.35;
}

.wf-divider {
    width: 1px;
    height: 50px;
    background: #e2e8f0;
}

.highlight-wf .wf-val {
    color: #d97706;
    font-size: 30px;
}

/* 4 Pillars */
.pillars-framework {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-md);
    padding: 34px 28px;
}

.framework-heading {
    font-family: var(--font-heading);
    font-size: 21px; /* Tối thiểu 18px */
    font-weight: 800;
    color: #064e3b;
    text-align: center;
    margin-bottom: 26px;
    letter-spacing: 0.5px;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.pillar-card {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-md);
    padding: 24px 18px;
    position: relative;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.pillar-num {
    font-family: var(--font-data);
    font-size: 28px; /* Tối thiểu 18px */
    font-weight: 800;
    color: #059669;
    opacity: 0.4;
    margin-bottom: 8px;
}

.pillar-core {
    font-family: var(--font-heading);
    font-size: 19px; /* Tối thiểu 18px */
    font-weight: 800;
    color: #0f172a;
    line-height: 1.3;
}

.pillar-role {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 800;
    color: #d97706;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.pillar-desc {
    font-family: var(--font-heading);
    font-size: 18px; /* Tối thiểu 18px */
    font-weight: 500;
    color: #475569;
    line-height: 1.5;
    margin-top: auto;
}

/* --------------------------------------------------------------------------
   Conclusion & Sign-off
   -------------------------------------------------------------------------- */
.highlight-conclusion {
    margin: 50px 0 35px;
    padding: 34px 38px;
    background: #f0fdf4;
    border: 2px solid #86efac;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.conclusion-text {
    font-family: var(--font-heading);
    font-size: 21px;
    font-weight: 700;
    line-height: 1.7;
    color: #064e3b;
}

.author-signoff {
    margin-top: 40px;
    text-align: right;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

.author-label {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: #64748b;
}

.author-name {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 800;
    color: #0f172a;
    margin-top: 4px;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.editorial-footer {
    background: #062b21;
    color: #94a3b8;
    padding: 60px 0 50px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-top-btn {
    margin-bottom: 28px;
}

.back-to-top {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    padding: 10px 22px;
    border-radius: var(--radius-full);
    text-decoration: none;
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 600;
    transition: background 0.3s ease, transform 0.2s ease;
}

.back-to-top:hover {
    background: #10b981;
    transform: translateY(-2px);
}

.back-to-top svg {
    width: 18px;
    height: 18px;
}

.footer-credits p {
    font-family: var(--font-heading);
    font-size: 16px;
    color: #cbd5e1;
    margin-bottom: 6px;
}

.footer-sub {
    font-size: 14px;
    color: #64748b;
}

/* --------------------------------------------------------------------------
   Animations (Scroll Reveal & Transitions)
   -------------------------------------------------------------------------- */
.animate-fade-up {
    opacity: 0;
    transform: translateY(24px);
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.scroll-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1), transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

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

/* --------------------------------------------------------------------------
   Responsive Design (Desktop, Tablet, Mobile)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .data-comparison-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .tech-pipeline {
        flex-direction: column;
        gap: 16px;
    }
    .pipeline-connector {
        transform: rotate(90deg);
        margin: 4px 0;
    }
    .pipeline-step {
        width: 100%;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 18px;
        line-height: 1.8;
    }

    .editorial-hero {
        min-height: auto;
        padding: 70px 0 50px;
    }

    .sapo-container {
        padding: 24px 20px;
    }

    .infographic-card {
        padding: 28px 18px;
    }

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

    .data-comparison-grid {
        grid-template-columns: 1fr;
    }

    .cycle-branch-split {
        grid-template-columns: 1fr;
    }

    .circular-products-grid {
        grid-template-columns: 1fr;
    }

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

    .workforce-grid {
        flex-direction: column;
        gap: 20px;
    }

    .wf-divider {
        width: 60%;
        height: 1px;
    }

    .pillars-grid {
        grid-template-columns: 1fr;
    }

    .pull-quote {
        padding: 24px 20px;
    }

    .pull-quote blockquote {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 2.1rem;
    }
    .stat-value-group {
        font-size: 34px;
    }
    .compare-main {
        font-size: 32px;
    }
    .stat-huge-number {
        font-size: 38px;
    }
}