/* ==========================================================================
   E-MAGAZINE DESIGN SYSTEM & CUSTOM STYLES
   ========================================================================== */

/* 1. Reset & Variables */
:root {
    --color-green: #3F7D3A;
    --color-green-light: #eff7ee;
    --color-green-dark: #22491e;
    --color-gold: #D8A734;
    --color-gold-light: #fdf6e6;
    --color-cream: #FDFBF7;
    --color-cream-dark: #F4EFE6;
    --color-dark: #2A2A2A;
    --color-gray: #666666;
    --color-light-gray: #F0F0F0;
    --color-white: #FFFFFF;
    
    --font-headline: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', sans-serif;
    --font-sub: 'Source Sans 3', sans-serif;
    
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-fast: all 0.2s ease-in-out;
    
    --container-width-large: 1200px;
    --container-width-medium: 960px;
    --container-width-small: 740px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--color-cream);
    color: var(--color-dark);
    font-family: var(--font-body);
    line-height: 1.8;
    overflow-x: hidden;
}

/* Typography Selection & Base Elements */
::selection {
    background-color: var(--color-green);
    color: var(--color-white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headline);
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-dark);
}

p {
    font-family: var(--font-body);
    font-weight: 400;
    margin-bottom: 1.5rem;
    color: var(--color-dark);
    font-size: 1.125rem;
}

/* Layout Containers */
.container {
    max-width: var(--container-width-large);
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

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

/* Spacers */
.spacer-small { margin-top: 2rem; }
.spacer-medium { margin-top: 4rem; }
.spacer-large { margin-top: 8rem; }

/* 2. Reading Progress Bar & Header */
.progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    z-index: 1000;
}

.progress-bar {
    height: 100%;
    background-color: var(--color-gold);
    width: 0%;
    transition: width 0.1s ease-out;
}

.main-header {
    position: absolute;
    top: 2rem;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 4rem;
    z-index: 100;
}

.logo {
    font-family: var(--font-headline);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-white);
    letter-spacing: 0.15em;
    border-bottom: 2px solid var(--color-gold);
    padding-bottom: 0.25rem;
}

.header-tag {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-gold);
    letter-spacing: 0.2em;
    border: 1px solid var(--color-gold);
    padding: 0.25rem 0.75rem;
    border-radius: 2px;
}

/* 3. Hero Section */
.hero-section {
    position: relative;
    height: 100vh;
    width: 100vw;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    z-index: 1;
    transition: transform 0.5s ease-out;
    background-attachment: fixed; /* Parallax effect */
}

.hero-content-wrapper {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: var(--container-width-large);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: center;
}

.hero-content {
    text-align: center;
    color: var(--color-white);
    max-width: 1100px;
    width: 100%;
}

.hero-category {
    font-family: var(--font-body);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.3em;
    color: var(--color-gold);
    margin-bottom: 2rem;
    display: block;
    animation: fadeInDown 1s ease-out;
}

.hero-title {
    font-family: 'Encode Sans', sans-serif;
    font-size: clamp(2.5rem, 5.5vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    color: var(--color-white);
    margin-bottom: 3rem;
    animation: fadeIn 1.5s ease-out;
}

.hero-title span {
    display: block;
}

.hero-title .title-top {
    font-weight: 300;
    font-size: 0.45em;
    letter-spacing: 0.15em;
    color: var(--color-cream);
    margin-bottom: 0.75rem;
}

.hero-title .title-highlight {
    font-weight: 900;
    font-size: 1.25em;
    color: var(--color-gold);
    text-shadow: 0 10px 30px rgba(0,0,0,0.3);
    display: inline-block;
    letter-spacing: -0.01em;
}

.hero-title .title-bottom {
    font-family: var(--font-headline); /* Playfair Display */
    font-weight: 400;
    text-transform: none;
    font-size: 0.35em;
    font-style: italic;
    color: var(--color-cream);
    opacity: 0.95;
    letter-spacing: 0;
    margin-top: 1.5rem;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    color: var(--color-white);
    text-align: center;
    opacity: 0.75;
    animation: bounce 2s infinite;
}

.scroll-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    display: block;
    margin-bottom: 0.5rem;
}

.scroll-arrow {
    font-size: 1.5rem;
    color: var(--color-gold);
}

/* 4. Subhead Section */
.subhead-section {
    padding: 8rem 0 6rem 0; /* Reduced top padding as Stats Card is removed from Hero */
    background-color: var(--color-cream);
}

.lead-text {
    font-family: var(--font-headline);
    font-size: clamp(1.4rem, 2.5vw, 1.85rem);
    line-height: 1.6;
    color: var(--color-green-dark);
    font-style: italic;
    text-align: center;
    position: relative;
    margin-bottom: 4rem;
}

.lead-text::before {
    content: "“";
    font-size: 6rem;
    color: var(--color-gold);
    opacity: 0.25;
    position: absolute;
    top: -3.5rem;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-headline);
}

/* Key Stats Row under Intro */
.key-stats-row-intro {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 4rem;
    border-top: 1px solid var(--color-cream-dark);
    padding-top: 4rem;
}

.intro-stat-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--color-white);
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.02);
    border-bottom: 3px solid var(--color-green);
    transition: var(--transition-smooth);
}

.intro-stat-item:hover {
    transform: translateY(-5px);
    border-bottom-color: var(--color-gold);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
}

.intro-stat-num {
    font-family: 'Encode Sans', sans-serif;
    font-weight: 800;
    font-size: 2.5rem;
    color: var(--color-dark);
    line-height: 1.1;
}

.intro-stat-unit {
    font-family: 'Encode Sans', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--color-gold);
    margin-left: 2px;
}

.intro-stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-gray);
    margin-top: 8px;
    line-height: 1.4;
    font-weight: 500;
}

/* 5. Magazine Parts Layout */
.magazine-part {
    padding-bottom: 8rem;
}

/* Split Screen Opener */
.visual-split {
    position: relative;
    height: 65vh;
    display: flex;
    overflow: hidden;
    margin-bottom: 6rem;
}

.split-side {
    flex: 1;
    background-size: cover;
    background-position: center;
    position: relative;
    transition: flex 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: flex;
    align-items: flex-end;
    padding: 3rem;
}

.split-side::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.2);
    transition: background 0.4s ease;
    z-index: 1;
}

.split-side:hover {
    flex: 1.2;
}

.split-side:hover::after {
    background: rgba(0, 0, 0, 0.05);
}

.split-overlay-text {
    position: relative;
    z-index: 2;
    color: var(--color-white);
    font-family: var(--font-headline);
    font-size: 1.5rem;
    font-style: italic;
    border-left: 3px solid var(--color-gold);
    padding-left: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.split-title-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
    text-align: center;
    width: 80%;
    pointer-events: none;
}

.part-number {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    color: var(--color-gold);
    text-transform: uppercase;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.6);
}

.part-title {
    font-size: clamp(2rem, 3.5vw, 3.5rem);
    color: var(--color-white);
    text-shadow: 0 4px 15px rgba(0, 0, 0, 0.8);
    font-weight: 700;
}

/* Longform Storytelling Columns */
.article-grid {
    display: grid;
    grid-template-columns: 1fr;
    justify-items: center;
    margin-bottom: 2rem;
}

.article-main {
    max-width: var(--container-width-small);
    font-size: 1.125rem;
    line-height: 1.85;
    color: var(--color-dark);
}

.article-main p {
    margin-bottom: 2rem;
}

.paragraph-dropcap::first-letter {
    font-family: var(--font-headline);
    font-size: 4.5rem;
    font-weight: 700;
    float: left;
    line-height: 0.8;
    margin-right: 0.75rem;
    margin-top: 0.25rem;
    color: var(--color-green);
}

/* 6. Infographic 1: Chuỗi Giá Trị Khép Kín */
.infographic-wrapper {
    padding: 6rem 0;
    margin: 6rem 0;
    border-radius: 4px;
}

.infographic-wrapper.gray-bg {
    background-color: var(--color-cream-dark);
}

.infographic-wrapper.dark-bg {
    background-color: var(--color-green-dark);
}

.infographic-wrapper.green-gradient-bg {
    background: linear-gradient(135deg, var(--color-green-dark) 0%, #152d13 100%);
}

.info-header {
    margin-bottom: 4rem;
}

.info-header.text-center {
    text-align: center;
}

.info-tag {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--color-green);
    text-transform: uppercase;
    display: inline-block;
    border: 1px solid var(--color-green);
    padding: 0.2rem 0.6rem;
    margin-bottom: 1rem;
    border-radius: 2px;
}

.info-tag.light {
    color: var(--color-gold);
    border-color: var(--color-gold);
}

.info-tag.bg-gold {
    background-color: var(--color-gold);
    border-color: var(--color-gold);
}

.info-desc {
    font-family: var(--font-sub);
    font-size: 1rem;
    color: var(--color-gray);
    margin-top: 0.5rem;
}

.info-desc.light-gray-text {
    color: rgba(255,255,255,0.7);
}

.white-text {
    color: var(--color-white);
}

/* Desktop Flowchart horizontal scroll/flex */
.flowchart-desktop {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 4rem 0;
    background: var(--color-white);
    padding: 2.5rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
}

.flow-step {
    flex: 1;
    text-align: center;
    padding: 0 0.5rem;
    position: relative;
    transition: var(--transition-smooth);
}

.flow-step:hover {
    transform: translateY(-5px);
}

.step-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.step-name {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--color-dark);
    margin-bottom: 0.25rem;
}

.step-sub {
    font-size: 0.75rem;
    color: var(--color-gray);
    line-height: 1.3;
}

.flow-arrow {
    font-size: 1.25rem;
    color: var(--color-gold);
    user-select: none;
    font-weight: bold;
}

.highlight-step {
    background: var(--color-green-light);
    border-radius: 6px;
    padding: 1rem 0.5rem;
    border: 1px dashed var(--color-green);
}

.market-step {
    background: var(--color-gold-light);
    border-radius: 6px;
    padding: 1rem 0.5rem;
    border: 1px dashed var(--color-gold);
}

/* Mobile Swipe Cards (Hidden on Desktop) */
.swipe-cards-container {
    display: none;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2rem;
    scrollbar-width: none; /* Hide scrollbar for Firefox */
    -ms-overflow-style: none;  /* Hide scrollbar for IE10+ */
}

.swipe-cards-container::-webkit-scrollbar {
    display: none; /* Hide scrollbar for Chrome/Safari/Opera */
}

.swipe-wrapper {
    display: flex;
    gap: 1.25rem;
    padding: 1rem 0.5rem;
}

.swipe-card {
    min-width: 280px;
    width: 280px;
    background: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.05);
    position: relative;
    border-bottom: 4px solid var(--color-green-dark);
}

.card-num {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-family: var(--font-headline);
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-light-gray);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.swipe-card h4 {
    font-family: var(--font-body);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.swipe-card p {
    font-size: 0.9rem;
    color: var(--color-gray);
    line-height: 1.5;
    margin-bottom: 0;
}

.highlight-card {
    background: var(--color-green-light);
    border-bottom-color: var(--color-green);
}

.market-card {
    background: var(--color-gold-light);
    border-bottom-color: var(--color-gold);
}

.swipe-indicator {
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-gray);
    margin-top: 1rem;
    display: none;
}

/* Stats Highlight Row */
.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.stat-box {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
    border: 1px solid var(--color-cream-dark);
    transition: var(--transition-smooth);
}

.stat-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
}

.box-num {
    font-family: var(--font-headline);
    font-size: 2.75rem;
    font-weight: 700;
    color: var(--color-green);
    display: block;
    margin-bottom: 0.5rem;
}

.box-label {
    font-size: 0.95rem;
    color: var(--color-gray);
    font-weight: 500;
}

/* 7. Infographic 2: Phú Nông Xanh Timeline */
.timeline-container {
    position: relative;
    margin: 5rem 0 2rem 0;
    padding: 2rem 0;
}

.timeline-line {
    position: absolute;
    top: 72px; /* Center alignment with time-node */
    left: 0;
    width: 100%;
    height: 2px;
    background: rgba(255, 255, 255, 0.15);
    z-index: 1;
}

.timeline-items {
    display: flex;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}

.timeline-item {
    flex: 1;
    text-align: center;
    padding: 0 1rem;
}

.time-node {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--color-green-dark);
    border: 3px solid var(--color-gold);
    color: var(--color-white);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-headline);
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 2rem;
    transition: var(--transition-smooth);
    box-shadow: 0 0 0 6px rgba(63, 125, 58, 0.4);
}

.timeline-item:hover .time-node {
    transform: scale(1.1);
    background: var(--color-gold);
    color: var(--color-green-dark);
    border-color: var(--color-white);
    box-shadow: 0 0 0 8px rgba(216, 167, 52, 0.4);
}

.timeline-item.highlight-node .time-node {
    background: var(--color-gold);
    border-color: var(--color-white);
    box-shadow: 0 0 0 8px rgba(216, 167, 52, 0.4);
}

.time-content {
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: var(--transition-smooth);
    height: calc(100% - 110px);
}

.timeline-item:hover .time-content {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.time-content h4 {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 0.5rem;
}

.time-content p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.5;
    margin-bottom: 0;
}

/* 8. Blockquote styling */
.quote-section {
    padding: 8rem 0;
    background-color: var(--color-cream);
    text-align: center;
}

.premium-quote {
    font-family: var(--font-headline);
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    line-height: 1.5;
    font-style: italic;
    color: var(--color-green-dark);
    margin-bottom: 2rem;
    position: relative;
    font-weight: 400;
}

.quote-author {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
}

.author-name {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-dark);
}

.author-title {
    font-family: var(--font-sub);
    font-size: 0.9rem;
    color: var(--color-gray);
    margin-top: 4px;
}

/* 9. Photo Story Carousel */
.carousel-section {
    padding: 6rem 0;
    background: var(--color-cream-dark);
}

.carousel-title-block {
    text-align: center;
    margin-bottom: 3rem;
}

.carousel-tag {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--color-green);
    text-transform: uppercase;
    display: inline-block;
    border: 1px solid var(--color-green);
    padding: 0.2rem 0.6rem;
    margin-bottom: 1rem;
}

.carousel-container {
    position: relative;
    max-width: var(--container-width-large);
    margin: 0 auto;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
    width: 300%; /* 3 slides */
}

.carousel-slide {
    flex: 1;
    width: 33.333%;
    position: relative;
}

.carousel-slide img {
    width: 100%;
    height: 600px;
    object-fit: cover;
    display: block;
}

.slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.3) 70%, rgba(0, 0, 0, 0) 100%);
    color: var(--color-white);
    padding: 4rem 3rem 3rem 3rem;
}

.slide-caption h4 {
    font-size: 1.75rem;
    color: var(--color-gold);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.slide-caption p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0;
    max-width: 700px;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.4);
    color: var(--color-white);
    border: none;
    font-size: 1.5rem;
    padding: 1.25rem 0.75rem;
    cursor: pointer;
    z-index: 10;
    transition: var(--transition-fast);
}

.carousel-btn:hover {
    background: var(--color-green);
}

.prev-btn {
    left: 0;
    border-radius: 0 4px 4px 0;
}

.next-btn {
    right: 0;
    border-radius: 4px 0 0 4px;
}

.carousel-dots {
    position: absolute;
    bottom: 1.5rem;
    right: 3rem;
    display: flex;
    gap: 8px;
    z-index: 10;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: var(--transition-fast);
}

.dot.active {
    background: var(--color-gold);
    transform: scale(1.2);
}

/* Mobile full screen Quote (Hidden on Desktop) */
.mobile-quote-screen {
    display: none;
    height: 100vh;
    width: 100vw;
    background: var(--color-green-dark);
    color: var(--color-white);
    padding: 3rem;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.mobile-quote-content p {
    font-family: var(--font-headline);
    font-size: 2rem;
    line-height: 1.4;
    font-style: italic;
    margin-bottom: 2rem;
    color: var(--color-gold);
}

.mobile-quote-content span {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    display: block;
}

/* 10. Part 2 */
.visual-opening-art {
    height: 55vh;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background-attachment: fixed;
}

.art-overlay-content {
    position: relative;
    z-index: 2;
    padding: 2rem;
    max-width: 800px;
}

.text-gold {
    color: var(--color-gold) !important;
}

.part-title-art {
    font-size: clamp(2.25rem, 4.5vw, 4rem);
    color: var(--color-white);
    font-weight: 700;
    margin-bottom: 1rem;
}

.part-subtitle-art {
    font-family: var(--font-sub);
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    color: var(--color-cream);
    opacity: 0.95;
    font-weight: 300;
}

/* Circular Flowchart 360 (Tà Đảnh) */
.circular-flow-desktop {
    max-width: 700px;
    margin: 3rem auto;
    position: relative;
}

.circle-node {
    cursor: pointer;
    transition: var(--transition-smooth);
}

.circle-node:hover {
    transform: scale(1.08);
}

.circle-node:hover circle {
    stroke: var(--color-gold);
    fill: var(--color-green-light);
}

.circular-flow-mobile {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin: 3rem 0;
}

.flow-card-vertical {
    background: var(--color-white);
    padding: 1.5rem;
    border-radius: 8px;
    width: 100%;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    border-left: 4px solid var(--color-green);
}

.flow-card-num {
    background: var(--color-green-light);
    color: var(--color-green);
    font-weight: bold;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.flow-card-text h4 {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--color-dark);
}

.flow-card-text p {
    font-size: 0.85rem;
    color: var(--color-gray);
    margin-bottom: 0;
    line-height: 1.4;
}

.flow-connector {
    font-size: 1.5rem;
    color: var(--color-gold);
    line-height: 1;
}

/* 11. Pyramid Infographic (Giá trị nông sản - 2 Columns Layout) */
.pyramid-wrapper-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
    margin: 4rem auto;
    max-width: 900px;
    background: var(--color-white);
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
}

.pyramid-shapes {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    width: 100%;
}

.pyramid-block {
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border-radius: 4px;
    text-align: center;
    position: relative;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

/* Width scaling for pyramid shape */
.pyramid-block.layer-6 { width: 30%; background: #d32f2f; }
.pyramid-block.layer-5 { width: 44%; background: var(--color-green); }
.pyramid-block.layer-4 { width: 58%; background: #558B2F; }
.pyramid-block.layer-3 { width: 72%; background: #689F38; }
.pyramid-block.layer-2 { width: 86%; background: #7CB342; }
.pyramid-block.layer-1 { width: 100%; background: #8BC34A; }

/* Active & Hover states */
.pyramid-block:hover {
    transform: scale(1.03);
    box-shadow: 0 6px 15px rgba(0,0,0,0.1);
}

.pyramid-block.active-block {
    background: var(--color-gold) !important;
    color: var(--color-dark);
    font-weight: 700;
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(216, 167, 52, 0.35);
}

.pyramid-text-desktop {
    display: block;
}

.pyramid-text-mobile {
    display: none;
}

/* Pyramid Info Panel */
.pyramid-info-panel {
    background: var(--color-cream-dark);
    padding: 2.5rem;
    border-radius: 8px;
    border-left: 5px solid var(--color-gold);
    min-height: 220px;
    display: flex;
    align-items: center;
    box-shadow: inset 0 2px 10px rgba(0,0,0,0.02);
}

.info-panel-content {
    animation: fadeIn 0.4s ease-out;
}

.info-panel-level {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-gold);
    letter-spacing: 0.15em;
    display: block;
    margin-bottom: 0.5rem;
}

.info-panel-title {
    font-size: 1.5rem;
    color: var(--color-green-dark);
    margin-bottom: 1rem;
    font-weight: 700;
}

.info-panel-desc {
    font-size: 0.95rem;
    color: var(--color-dark);
    line-height: 1.6;
    margin-bottom: 0;
}

/* 12. Intellectual Property Grid */
.intellectual-property-section {
    padding: 8rem 0;
    background: var(--color-cream);
}

.ip-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

/* Highlight Box (Left) */
.highlight-box {
    background-color: var(--color-white);
    padding: 3rem;
    border-radius: 8px;
    border-top: 5px solid var(--color-gold);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.04);
}

.box-badge {
    display: inline-block;
    background: var(--color-gold-light);
    color: var(--color-gold);
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    padding: 0.3rem 0.8rem;
    border-radius: 2px;
    margin-bottom: 1.5rem;
}

.highlight-box h3 {
    font-size: 1.85rem;
    color: var(--color-dark);
    margin-bottom: 1.5rem;
}

.box-intro {
    font-size: 1rem;
    color: var(--color-gray);
    margin-bottom: 2rem;
}

.checklist-grid {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.checklist-grid li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    font-weight: 500;
}

.check-icon {
    color: var(--color-green);
    font-weight: bold;
    font-size: 1.1rem;
}

/* Benefits Card list (Right) */
.benefits-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.benefits-title {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: bold;
    letter-spacing: 0.15em;
    color: var(--color-gray);
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.benefit-cards {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.benefit-card {
    background: var(--color-white);
    padding: 1.5rem;
    border-radius: 6px;
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.01);
    transition: var(--transition-smooth);
}

.benefit-card:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.03);
}

.benefit-icon {
    font-size: 1.75rem;
    line-height: 1;
}

.benefit-content h5 {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.benefit-content p {
    font-size: 0.85rem;
    color: var(--color-gray);
    margin-bottom: 0;
    line-height: 1.4;
}

.highlighted-benefit {
    border-left: 4px solid var(--color-gold);
    background: var(--color-gold-light);
}

/* 13. Part 3 & Shield Infographic */
.shield-infographic-container {
    display: grid;
    grid-template-columns: 1.2fr 1.8fr;
    gap: 4rem;
    align-items: center;
    margin-top: 4rem;
}

.shield-svg-box {
    max-width: 320px;
    margin: 0 auto;
}

.shield-points {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.shield-point {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.point-bullet {
    background: var(--color-gold);
    color: var(--color-green-dark);
    font-family: var(--font-body);
    font-weight: bold;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.05rem;
}

.point-desc h5 {
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 0.25rem;
}

.point-desc p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.5;
    margin-bottom: 0;
}

/* Con đường chinh phục thị trường lớn */
.road-map-desktop {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 3rem;
}

.road-step {
    flex: 1;
    background: var(--color-white);
    padding: 1.5rem 1rem;
    border-radius: 6px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
    min-height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-bottom: 3px solid var(--color-green);
    transition: var(--transition-fast);
}

.road-step:hover {
    transform: translateY(-3px);
    border-bottom-color: var(--color-gold);
}

.road-num {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 0.25rem;
}

.road-name {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--color-dark);
    line-height: 1.3;
}

.road-connector {
    padding: 0 0.5rem;
    color: var(--color-green);
    font-weight: bold;
}

.road-end {
    border-bottom-color: var(--color-gold);
    background: var(--color-gold-light);
}

.road-map-mobile {
    display: none;
    flex-direction: column;
    gap: 1rem;
    margin-top: 3rem;
}

.road-step-mobile {
    background: var(--color-white);
    padding: 1.25rem;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
    border-left: 4px solid var(--color-green);
}

.step-badge {
    background: var(--color-green-light);
    color: var(--color-green);
    font-weight: bold;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    flex-shrink: 0;
}

.road-step-mobile h5 {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0;
}

.step-end-mobile {
    border-left-color: var(--color-gold);
    background: var(--color-gold-light);
}

.step-end-mobile .step-badge {
    background: var(--color-gold);
    color: var(--color-dark);
}

/* Quote Visual Full Width */
.visual-quote-fullwidth {
    position: relative;
    height: 50vh;
    background-image: url('images/hero_bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin-top: 6rem;
}

.quote-bg-mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(34, 73, 30, 0.8); /* green-dark with opacity */
    z-index: 1;
}

.visual-quote-fullwidth .container {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.quote-text-full {
    font-family: var(--font-headline);
    font-size: clamp(1.8rem, 3.5vw, 2.75rem);
    line-height: 1.4;
    color: var(--color-white);
    font-weight: 600;
}

/* 14. Conclusion Section */
.conclusion-section {
    position: relative;
    padding: 10rem 0;
    background-size: cover;
    background-position: center;
    color: var(--color-white);
    background-attachment: fixed;
}

.conclusion-tag {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.25rem;
    display: block;
    margin-bottom: 1.5rem;
}

.conclusion-title {
    font-size: clamp(2rem, 4vw, 3.25rem);
    color: var(--color-white);
    font-weight: 700;
    margin-bottom: 3rem;
}

.conclusion-lead {
    font-family: var(--font-headline);
    font-size: clamp(1.25rem, 2.2vw, 1.6rem);
    line-height: 1.65;
    color: var(--color-cream);
    max-width: 800px;
    margin: 0 auto 2rem auto;
    font-weight: 400;
}

.conclusion-sub {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.7);
    max-width: 700px;
    margin: 0 auto 4rem auto;
}

.author-credits {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 4rem;
}

.author-line {
    width: 80px;
    height: 2px;
    background: var(--color-gold);
    margin-bottom: 1.5rem;
}

.author-name-credit {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-white);
    letter-spacing: 0.05em;
}

.author-source {
    font-family: var(--font-sub);
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
    margin-top: 4px;
}

/* 15. Scroll to top button */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-green);
    color: var(--color-white);
    border: none;
    font-size: 1.25rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.scroll-to-top.show {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    background: var(--color-gold);
    transform: translateY(-5px);
}

/* 16. Keyframe Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translate(-50%, 0);
    }
    40% {
        transform: translate(-50%, -10px);
    }
    60% {
        transform: translate(-50%, -5px);
    }
}


/* ==========================================================================
   17. RESPONSIVE MEDIA QUERIES (Mobile & Tablet)
   ========================================================================== */

@media (max-width: 1024px) {
    .main-header {
        padding: 0 2rem;
    }
    
    .key-stats-row-intro {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
        padding-top: 3rem;
        margin-top: 3rem;
    }
    
    .pyramid-wrapper-layout {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        padding: 2rem 1.5rem;
    }
    
    .pyramid-info-panel {
        min-height: auto;
        padding: 1.5rem;
    }
    
    .subhead-section {
        padding: 6rem 0 4rem 0;
    }
    
    .timeline-items {
        flex-direction: column;
        gap: 2rem;
    }
    
    .timeline-line {
        left: 40px;
        top: 0;
        width: 2px;
        height: 100%;
    }
    
    .timeline-item {
        display: flex;
        align-items: flex-start;
        text-align: left;
        padding: 0;
    }
    
    .time-node {
        margin-bottom: 0;
        flex-shrink: 0;
        z-index: 10;
        margin-right: 1.5rem;
    }
    
    .time-content {
        height: auto;
        width: 100%;
    }
    
    .ip-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .shield-infographic-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    /* Fonts downscaling */
    p {
        font-size: 1rem;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-subtitle {
        font-size: 1.15rem;
        margin-bottom: 2rem;
    }
    
    .part-title {
        font-size: 1.75rem;
    }
    
    .part-title-art {
        font-size: 1.85rem;
    }
    
    .lead-text {
        font-size: 1.25rem;
    }
    
    /* Layout details */
    .visual-split {
        flex-direction: column;
        height: 50vh;
    }
    
    .split-side {
        padding: 1.5rem;
    }
    
    .split-side:hover {
        flex: 1;
    }
    
    /* Carousel height */
    .carousel-slide img {
        height: 400px;
    }
    
    .slide-caption {
        padding: 2rem 1.5rem 1.5rem 1.5rem;
    }
    
    .slide-caption h4 {
        font-size: 1.25rem;
    }
    
    .slide-caption p {
        font-size: 0.85rem;
    }
    
    /* Infographic 1: Flowchart desktop hides, mobile swipe cards show */
    .flowchart-desktop {
        display: none;
    }
    
    .swipe-cards-container {
        display: block;
    }
    
    .swipe-indicator {
        display: block;
    }
    
    .stats-row {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-top: 2rem;
    }
    
    .key-stats-row-intro {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding-top: 2rem;
        margin-top: 2rem;
    }
    
    .stat-box {
        padding: 1.5rem;
    }
    
    .box-num {
        font-size: 2.25rem;
    }
    
    /* Carousel navigation buttons smaller on mobile */
    .carousel-btn {
        padding: 1rem 0.5rem;
        font-size: 1.2rem;
    }
    
    .carousel-dots {
        right: 1.5rem;
        bottom: 1rem;
    }
    
    /* Mobile quote screen reveals on mobile layout */
    .mobile-quote-screen {
        display: flex;
    }
    
    .quote-section {
        display: none; /* Hide regular quote section, use full screen */
    }
    
    /* Part 2 circular flow */
    .circular-flow-desktop {
        display: none;
    }
    
    .circular-flow-mobile {
        display: flex;
    }
    
    /* Pyramid Infographic stack list for mobile */
    .hero-section {
        padding: 4rem 0;
    }
    
    /* Pyramid Infographic stack list for mobile */
    .pyramid-block {
        width: 100% !important;
        height: 48px;
    }
    
    .pyramid-text-desktop {
        display: none;
    }
    
    .pyramid-text-mobile {
        display: block;
    }
    
    /* Highlight box checklist */
    .checklist-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .highlight-box {
        padding: 2rem 1.5rem;
    }
    
    /* Road map */
    .road-map-desktop {
        display: none;
    }
    
    .road-map-mobile {
        display: flex;
    }
    
    /* Parallax removal on mobile for better performance */
    .hero-bg, .visual-opening-art, .visual-quote-fullwidth, .conclusion-section {
        background-attachment: scroll !important;
    }
}