/* ==========================================================================
   DESIGN SYSTEM & VARIABLES
   ========================================================================== */
:root {
    /* Color Palette */
    --color-primary-dark: #1b4332;   /* Deep Forest Green */
    --color-primary: #2d6a4f;        /* Tech Green */
    --color-primary-light: #40916c;  /* Light Green */
    --color-secondary-dark: #4e3629; /* Coffee Dark */
    --color-secondary: #8c6239;      /* Warm Coffee */
    --color-accent: #f4a261;         /* Warm Orange */
    --color-accent-light: #e9c46a;   /* Nhãn chín Yellow */
    --color-bg-light: #fdfdfb;       /* Premium Magazine Cream */
    --color-bg-dark: #0f2218;        /* Dark Green/Black for Hero */
    --color-bg-grey: #f4f6f3;        /* Warm light grey for containers */
    --color-text-dark: #1c1d1c;      /* Soft Black */
    --color-text-muted: #575a58;    /* Charcoal */
    --color-text-light: #fdfdfb;     /* White/Off-white */

    /* Typography */
    --font-serif: "Encode Sans", sans-serif;
    --font-sans: "Encode Sans", sans-serif;
    --font-display: "Encode Sans", sans-serif;

    /* Transitions */
    --transition-smooth: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-quick: all 0.25s ease-in-out;
}

/* ==========================================================================
   BASE STYLES & RESET
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

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

/* Scrollbar Style */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg-grey);
}
::-webkit-scrollbar-thumb {
    background: var(--color-primary-dark);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Progress Bar indicator */
.progress-container {
    position: fixed;
    top: 0;
    z-index: 1000;
    width: 100%;
    height: 4px;
    background: transparent;
}
.progress-bar {
    height: 4px;
    background: var(--color-accent);
    width: 0%;
}

/* Typography styles */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-sans);
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-primary-dark);
}

p {
    margin-bottom: 1.8rem;
    font-size: 1.15rem;
    text-align: justify;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.main-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 99;
    padding: 2rem 4%;
    color: var(--color-text-light);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(253, 253, 251, 0.15);
    padding-bottom: 1rem;
}

.brand-logo {
    font-family: var(--font-sans);
    font-weight: 900;
    letter-spacing: 2px;
}

.header-meta {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    opacity: 0.8;
}

/* ==========================================================================
   HERO COVER
   ========================================================================== */
.hero-cover {
    position: relative;
    width: 100%;
    min-height: 100vh;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    overflow: hidden;
    padding: 8rem 4% 6rem 4%;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, 
                rgba(15, 34, 24, 0.85) 0%, 
                rgba(15, 34, 24, 0.7) 40%, 
                rgba(15, 34, 24, 0.9) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-tag {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--color-accent-light);
    margin-bottom: 1.5rem;
    display: inline-block;
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(2.2rem, 5vw, 4.5rem);
    line-height: 1.1;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: -1px;
    margin-bottom: 1rem;
}

.hero-title span {
    display: block;
}

.title-sub {
    font-weight: 400;
    font-size: 0.6em;
    color: var(--color-accent);
    letter-spacing: 2px;
}

.hero-subtitle {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(1.4rem, 2.5vw, 2.2rem);
    font-weight: 300;
    color: var(--color-bg-light);
    opacity: 0.95;
    margin-bottom: 3rem;
}

.sapo-box {
    max-width: 760px;
    margin: 0 auto 4rem auto;
    border-left: 3px solid var(--color-accent);
    padding: 0.5rem 0 0.5rem 2rem;
    text-align: left;
}

.sapo-text {
    font-family: var(--font-serif);
    font-size: clamp(1.1rem, 1.8vw, 1.4rem);
    line-height: 1.7;
    font-style: italic;
    color: #e2e8e0;
    margin-bottom: 0;
    text-align: justify;
}

/* Hero network graphic */
.hero-network-container {
    width: 100%;
    max-width: 850px;
    background: rgba(253, 253, 251, 0.03);
    border: 1px solid rgba(253, 253, 251, 0.08);
    border-radius: 12px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    margin-bottom: 2rem;
}

.network-title {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--color-accent-light);
    margin-bottom: 1rem;
    text-transform: uppercase;
}

#hero-network {
    overflow: visible;
}

.connection-line-base {
    stroke: rgba(253, 253, 251, 0.1);
    stroke-width: 3;
    fill: none;
}

.connection-line-active {
    stroke: url(#grad-line);
    stroke-width: 3;
    fill: none;
    stroke-dasharray: 640;
    stroke-dashoffset: 640;
    animation: drawLine 4s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.network-node {
    cursor: pointer;
}

.outer-node {
    fill: rgba(45, 106, 79, 0.3);
    stroke: var(--color-primary-light);
    stroke-width: 1.5;
    transition: var(--transition-smooth);
}

.inner-node {
    fill: var(--color-primary-dark);
    stroke: var(--color-primary-light);
    stroke-width: 2;
    transition: var(--transition-smooth);
}

.accent-node {
    fill: var(--color-accent);
    stroke: var(--color-accent-light);
}

.network-node:hover .outer-node {
    r: 34;
    fill: rgba(244, 162, 97, 0.3);
    stroke: var(--color-accent);
}

.network-node:hover .inner-node {
    fill: var(--color-accent);
    stroke: var(--color-text-light);
}

.node-text {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: 8px;
    letter-spacing: 1px;
    fill: var(--color-text-light);
    text-anchor: middle;
    pointer-events: none;
}

.node-text.text-dark {
    fill: var(--color-bg-dark);
}

.scroll-down-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 2rem;
    opacity: 0.7;
    animation: bounce 2s infinite;
}

.scroll-text {
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.scroll-arrow svg {
    stroke: var(--color-accent);
}

/* ==========================================================================
   EDITORIAL WRITING LAYOUT
   ========================================================================== */
.content-wrapper {
    position: relative;
    z-index: 10;
}

.editorial-section {
    padding: 5rem 4%;
    background-color: var(--color-bg-light);
}

.editorial-container {
    max-width: 720px;
    margin: 0 auto;
}

.dropcap-paragraph::first-letter {
    font-family: var(--font-display);
    font-size: 4.8rem;
    font-weight: 900;
    float: left;
    line-height: 0.8;
    margin-right: 12px;
    margin-top: 6px;
    color: var(--color-primary-dark);
}

/* ==========================================================================
   CHAPTER SECTION
   ========================================================================== */
.chapter-section {
    position: relative;
    background-color: var(--color-bg-light);
}

/* Chapter Opener Visual */
.chapter-opener {
    position: relative;
    width: 100%;
    height: 60vh;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    overflow: hidden;
}

.chapter-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, 
                rgba(27, 67, 50, 0.9) 0%, 
                rgba(27, 67, 50, 0.4) 50%, 
                rgba(27, 67, 50, 0.9) 100%);
    z-index: 1;
}

.chapter-opener-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 2rem;
}

.chapter-number {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 5px;
    color: var(--color-accent-light);
    display: block;
    margin-bottom: 1rem;
}

.chapter-headline {
    font-family: var(--font-sans);
    font-weight: 900;
    font-size: clamp(1.8rem, 3.8vw, 3rem);
    text-transform: uppercase;
    color: var(--color-text-light);
    letter-spacing: 0px;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.chapter-caption {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 0.9rem;
    opacity: 0.75;
}

/* ==========================================================================
   DATA STORYTELLING (PHẦN 1)
   ========================================================================== */
.data-storytelling-block {
    padding: 4rem 4%;
    background-color: var(--color-bg-grey);
}

.dashboard-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.dashboard-left-card, .dashboard-right-card {
    background-color: var(--color-bg-light);
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
    padding: 2.5rem;
    border: 1px solid rgba(45, 106, 79, 0.08);
}

.card-tag {
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-primary-dark);
    margin-bottom: 2rem;
    border-left: 4px solid var(--color-primary);
    padding-left: 1rem;
}

/* Map Styling */
.svg-map-wrapper {
    width: 100%;
    margin-bottom: 2rem;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: inset 0 2px 8px rgba(0,0,0,0.05);
}

#chieng-mung-map {
    display: block;
}

.ping-marker {
    animation: markerFlash 1.5s infinite;
}

.ping-wave {
    transform-origin: 150px 110px;
    animation: waveExpand 2s infinite ease-out;
}

/* Mini Data stats */
.mini-data-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.mini-data-item {
    background-color: var(--color-bg-grey);
    border-radius: 10px;
    padding: 1.2rem;
    border: 1px solid rgba(0,0,0,0.02);
}

.full-width-mini-data {
    grid-column: span 2;
}

.data-number-sm {
    font-family: var(--font-sans);
    font-weight: 900;
    font-size: 2rem;
    color: var(--color-primary-dark);
}

.data-unit {
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-secondary);
    margin-left: 0.25rem;
}

.data-label-sm {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0;
    margin-top: 0.25rem;
}

/* Horizontal Timeline */
.horizontal-timeline {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.timeline-step {
    display: flex;
    align-items: center;
    position: relative;
}

.step-num {
    font-family: var(--font-sans);
    font-weight: 900;
    font-size: 1.1rem;
    color: var(--color-accent);
    width: 35px;
    height: 35px;
    background-color: rgba(244, 162, 97, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1.2rem;
    flex-shrink: 0;
}

.step-title {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text-dark);
}

.timeline-step::after {
    content: '';
    position: absolute;
    left: 17px;
    top: 35px;
    width: 2px;
    height: calc(1.5rem + 5px);
    background-color: rgba(244, 162, 97, 0.2);
}

.timeline-step:last-child::after {
    display: none;
}

.timeline-step:last-child .step-num {
    background-color: var(--color-primary);
    color: var(--color-text-light);
}

.timeline-step:last-child .step-title {
    color: var(--color-primary-dark);
    font-weight: 800;
}

/* Quote Card Inline */
.quote-card-inline {
    background-color: var(--color-bg-grey);
    border-left: 4px solid var(--color-secondary);
    padding: 1.5rem;
    border-radius: 0 10px 10px 0;
    position: relative;
    overflow: hidden;
}

.quote-icon {
    position: absolute;
    right: 10px;
    bottom: -5px;
    color: rgba(140, 98, 57, 0.06);
}

.quote-text-inline {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-style: italic;
    font-weight: 600;
    color: var(--color-secondary-dark);
    line-height: 1.6;
}

/* ==========================================================================
   PARTIES PROCESS 6 BÊN
   ========================================================================== */
.process-6-parties {
    background-color: var(--color-bg-grey);
    border-radius: 12px;
    padding: 2rem;
    margin: 3rem 0;
    border: 1px solid rgba(45, 106, 79, 0.1);
}

.process-title {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--color-primary-dark);
    text-align: center;
    margin-bottom: 1.8rem;
    text-transform: uppercase;
}

.parties-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.party-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 1;
    min-width: 90px;
    background-color: var(--color-bg-light);
    border-radius: 8px;
    padding: 1rem 0.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
    border: 1px solid rgba(0,0,0,0.04);
    transition: var(--transition-quick);
}

.party-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.06);
    border-color: var(--color-primary-light);
}

.highlighted-party {
    border-color: var(--color-accent);
    background-color: rgba(244, 162, 97, 0.05);
}

.party-icon {
    width: 40px;
    height: 40px;
    background-color: rgba(45, 106, 79, 0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.highlighted-party .party-icon {
    background-color: var(--color-accent);
    color: var(--color-text-light);
}

.party-name {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-text-dark);
}

.party-arrow {
    font-family: var(--font-sans);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary-light);
    opacity: 0.5;
}

/* ==========================================================================
   FEATURE BLOCK HTX ĐOÀN KẾT
   ========================================================================== */
.feature-block-container {
    padding: 4rem 4%;
    background-color: var(--color-bg-light);
}

.feature-block-grid {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
}

.feature-block-image {
    width: 100%;
    height: 480px;
    background-size: cover;
    background-position: center;
    border-radius: 16px;
    position: relative;
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
    overflow: hidden;
}

.feature-image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 2rem;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 100%);
    color: var(--color-text-light);
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 0.95rem;
}

.feature-block-text {
    padding-right: 1rem;
}

.feature-sup {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--color-accent);
    display: block;
    margin-bottom: 0.75rem;
}

.feature-title {
    font-family: var(--font-sans);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-primary-dark);
    margin-bottom: 1.5rem;
}

.feature-desc {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    line-height: 1.75;
}

.feature-bullets {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
    margin-top: 2rem;
}

.bullet-item {
    display: flex;
    align-items: center;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-primary-dark);
}

.bullet-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: rgba(40, 145, 108, 0.1);
    color: var(--color-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    flex-shrink: 0;
}

/* ==========================================================================
   DATA CARDS GRID (PHẦN 2)
   ========================================================================== */
.data-cards-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin: 3rem 0;
}

.data-card {
    background-color: var(--color-bg-grey);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.03);
    transition: var(--transition-smooth);
}

.data-card:hover {
    transform: translateY(-8px);
    background-color: var(--color-bg-light);
    box-shadow: 0 15px 35px rgba(45, 106, 79, 0.06);
    border-color: rgba(45, 106, 79, 0.15);
}

.data-card-number {
    font-family: var(--font-sans);
    font-weight: 900;
    font-size: clamp(2rem, 3.5vw, 3rem);
    color: var(--color-primary-dark);
    display: block;
    line-height: 1.1;
    margin-bottom: 0.5rem;
}

.data-card-label {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0;
}

.data-card-deco {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--color-accent);
}

/* Infographic: Bậc thang chuỗi giá trị */
.infographic-value-chain {
    background-color: var(--color-primary-dark);
    color: var(--color-text-light);
    border-radius: 16px;
    padding: 2.5rem;
    margin: 3.5rem 0;
}

.info-title {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--color-accent-light);
    text-align: center;
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.value-chain-flow {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 1;
    min-width: 100px;
    background-color: rgba(253, 253, 251, 0.05);
    border-radius: 8px;
    padding: 1.2rem 0.5rem;
    border: 1px solid rgba(253, 253, 251, 0.1);
    transition: var(--transition-quick);
}

.flow-step:hover {
    background-color: rgba(253, 253, 251, 0.1);
    border-color: var(--color-accent);
}

.highlight-step {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-secondary) 100%);
    border: none;
}

.highlight-step .flow-num {
    background-color: var(--color-primary-dark);
    color: var(--color-accent-light);
}

.highlight-step .flow-text {
    color: var(--color-primary-dark);
    font-weight: 800;
}

.flow-num {
    font-family: var(--font-sans);
    font-weight: 900;
    font-size: 1rem;
    color: var(--color-accent);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: rgba(244, 162, 97, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.flow-text {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-bg-light);
    letter-spacing: 0.2px;
}

.flow-arrow {
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--color-accent);
    opacity: 0.6;
}

/* ==========================================================================
   BLOCK SỞ HỮU TRÍ TUỆ
   ========================================================================== */
.intellectual-property-block {
    background-color: var(--color-bg-grey);
    padding: 5rem 4%;
    border-top: 1px solid rgba(0,0,0,0.05);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.ip-container {
    max-width: 1200px;
    margin: 0 auto;
}

.ip-tag {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--color-secondary);
    display: block;
    text-align: center;
    text-transform: uppercase;
}

.ip-title {
    font-family: var(--font-sans);
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--color-primary-dark);
    text-align: center;
    margin-bottom: 4rem;
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

.ip-grid-layout {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 4rem;
    align-items: center;
}

.ip-visual-card {
    background-color: var(--color-bg-light);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: 0 15px 35px rgba(0,0,0,0.02);
    border: 1px solid rgba(45, 106, 79, 0.08);
}

.shield-graphic-wrapper {
    max-width: 180px;
    margin: 0 auto 2rem auto;
}

#shield-svg {
    overflow: visible;
}

#main-shield {
    transition: var(--transition-smooth);
}

.ip-visual-card:hover #main-shield {
    fill: var(--color-primary);
}

.highlight-box {
    border-top: 1px solid rgba(0,0,0,0.08);
    padding-top: 1.5rem;
    margin-top: 1.5rem;
    text-align: left;
    position: relative;
}

.highlight-quote-icon {
    color: rgba(45, 106, 79, 0.1);
    position: absolute;
    top: 15px;
    left: 0;
}

.highlight-text {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-style: italic;
    font-weight: 600;
    color: var(--color-primary-dark);
    line-height: 1.6;
    padding-left: 2rem;
    margin-bottom: 0;
}

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

.ip-item {
    background-color: var(--color-bg-light);
    border-radius: 12px;
    padding: 1.8rem 1rem;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.02);
    border: 1px solid rgba(0,0,0,0.03);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 140px;
}

.ip-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(45, 106, 79, 0.06);
    border-color: var(--color-primary-light);
}

.ip-icon {
    width: 45px;
    height: 45px;
    background-color: rgba(244, 162, 97, 0.1);
    border-radius: 50%;
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    transition: var(--transition-quick);
}

.ip-item:hover .ip-icon {
    background-color: var(--color-primary);
    color: var(--color-text-light);
}

.ip-item-title {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-text-dark);
    line-height: 1.3;
}

/* ==========================================================================
   OCOP ECOSYSTEM
   ========================================================================== */
.ocop-ecosystem {
    background-color: var(--color-bg-grey);
    border-radius: 16px;
    padding: 2.5rem;
    margin: 3.5rem 0;
    border: 1px solid rgba(0,0,0,0.04);
}

.ocop-title {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--color-primary-dark);
    text-align: center;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.ecosystem-visual {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.eco-node {
    cursor: pointer;
}

.eco-node circle {
    transform-origin: center;
    transition: var(--transition-smooth);
}

.eco-node:hover circle {
    r: 50;
    fill: var(--color-primary);
}

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

.eco-node-leaf circle {
    transition: var(--transition-smooth);
}

.eco-node-leaf:hover circle {
    r: 36;
    stroke: var(--color-accent);
    stroke-width: 3;
}

/* ==========================================================================
   DIGITAL TRANSFORMATION SECTION
   ========================================================================== */
.digital-transformation-section {
    position: relative;
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    padding: 6rem 4%;
    overflow: hidden;
}

.dt-container {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.dt-tag {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
}

.dt-title {
    font-family: var(--font-sans);
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--color-text-light);
    text-transform: uppercase;
    margin-bottom: 4rem;
}

.dt-network-wrapper {
    width: 100%;
    background-color: rgba(253, 253, 251, 0.02);
    border: 1px solid rgba(253, 253, 251, 0.06);
    border-radius: 16px;
    padding: 2.5rem;
    backdrop-filter: blur(10px);
    margin-bottom: 3rem;
}

.network-desc-top {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--color-accent-light);
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 2rem;
}

#dt-interactive-net {
    max-width: 600px;
    margin: 0 auto;
    display: block;
    overflow: visible;
}

.net-node {
    cursor: pointer;
}

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

.net-node:hover circle {
    r: 39;
    fill: var(--color-accent);
    stroke: var(--color-text-light);
}

.center-node:hover circle {
    r: 54;
    fill: var(--color-accent);
}

.net-line {
    stroke-dasharray: 8;
    animation: dashMotion 20s linear infinite;
}

.dt-highlight {
    max-width: 680px;
    text-align: center;
    border-top: 1px solid rgba(253, 253, 251, 0.1);
    border-bottom: 1px solid rgba(253, 253, 251, 0.1);
    padding: 2rem 0;
    margin-bottom: 3rem;
}

.dt-highlight-text {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-style: italic;
    color: var(--color-accent-light);
    margin-bottom: 0;
}

.dt-editorial-container {
    max-width: 680px;
    width: 100%;
}

.dt-body-text {
    color: rgba(253, 253, 251, 0.85);
    font-size: 1.1rem;
    text-align: justify;
}

/* ==========================================================================
   ALLIANCE 4 PARTIES (PHẦN 3)
   ========================================================================== */
.alliance-4-parties-block {
    padding: 5rem 4%;
    background-color: var(--color-bg-grey);
}

.alliance-container {
    max-width: 1000px;
    margin: 0 auto;
}

.alliance-title {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--color-primary-dark);
    text-align: center;
    margin-bottom: 4rem;
    text-transform: uppercase;
}

.alliance-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.alliance-svg-wrapper {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
}

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

.alliance-node circle {
    transition: var(--transition-smooth);
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.05));
}

.alliance-node:hover circle {
    r: 28;
    fill: var(--color-primary-dark);
    stroke: var(--color-accent-light);
}

.alliance-node:hover text {
    fill: var(--color-text-light) !important;
}

.alliance-details-card {
    background-color: var(--color-bg-light);
    border-radius: 16px;
    padding: 3rem;
    box-shadow: 0 15px 35px rgba(0,0,0,0.02);
    border: 1px solid rgba(45, 106, 79, 0.08);
    min-height: 250px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transition: var(--transition-smooth);
}

.details-title {
    font-family: var(--font-sans);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--color-primary-dark);
    margin-bottom: 1rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.details-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--color-accent);
}

.details-desc {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 0;
}

/* ==========================================================================
   ENTERPRISE DASHBOARD
   ========================================================================== */
.enterprise-dashboard {
    padding: 5rem 4%;
    background-color: var(--color-bg-light);
}

.ent-container {
    max-width: 1100px;
    margin: 0 auto;
    background-color: var(--color-bg-grey);
    border-radius: 20px;
    padding: 4rem;
    border: 1px solid rgba(45, 106, 79, 0.08);
}

.ent-header {
    margin-bottom: 3.5rem;
    border-bottom: 1px solid rgba(0,0,0,0.06);
    padding-bottom: 1.5rem;
}

.ent-tag {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--color-primary);
    text-transform: uppercase;
}

.ent-title {
    font-family: var(--font-sans);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--color-primary-dark);
    margin-top: 0.5rem;
}

.ent-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
}

.ent-metric-card {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    justify-content: center;
}

.metric-item {
    background-color: var(--color-bg-light);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 10px 25px rgba(0,0,0,0.02);
    border-left: 4px solid var(--color-accent);
}

.metric-val {
    font-family: var(--font-sans);
    font-weight: 900;
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    color: var(--color-primary-dark);
    display: block;
    line-height: 1.1;
    margin-bottom: 0.5rem;
}

.metric-lbl {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.standard-title {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 1.5px;
    color: var(--color-secondary);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.standard-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.standard-item {
    display: flex;
    align-items: flex-start;
    background-color: var(--color-bg-light);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.01);
}

.standard-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-primary-light);
    margin-top: 0.5rem;
    margin-right: 1.2rem;
    flex-shrink: 0;
}

.standard-text h5 {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--color-primary-dark);
    margin-bottom: 0.25rem;
}

.standard-text p {
    font-family: var(--font-serif);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
    line-height: 1.5;
}

/* ==========================================================================
   FLOW MOTION (CHUỖI GIÁ TRỊ HOẠT HÌNH)
   ========================================================================== */
.flow-motion-block {
    padding: 4rem 4%;
    background-color: var(--color-bg-grey);
    border-top: 1px solid rgba(0,0,0,0.04);
}

.flow-motion-container {
    max-width: 800px;
    margin: 0 auto;
}

.flow-motion-title {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.interactive-flow-canvas {
    background-color: var(--color-bg-light);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.02);
}

#chain-flow-svg {
    overflow: visible;
}

.animated-flow-path {
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    animation: flowRight 6s linear infinite;
}

.animated-flow-path-reverse {
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    animation: flowLeft 6s linear infinite;
}

/* ==========================================================================
   BIG QUOTE CLOSING
   ========================================================================== */
.big-quote-container {
    padding: 8rem 4%;
    background-color: var(--color-bg-light);
    text-align: center;
}

.big-quote-inner {
    max-width: 850px;
    margin: 0 auto;
    position: relative;
}

.quote-deco-symbol {
    font-family: var(--font-display);
    font-size: 8rem;
    font-weight: 900;
    color: rgba(45, 106, 79, 0.08);
    position: absolute;
    top: -4rem;
    left: 50%;
    transform: translateX(-50%);
    line-height: 1;
    pointer-events: none;
}

.big-quote-text {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 3.2vw, 2.2rem);
    font-weight: 700;
    line-height: 1.6;
    color: var(--color-primary-dark);
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}

.big-quote-text::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--color-accent);
    margin: 2rem auto 1.5rem auto;
}

.quote-author {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-secondary);
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ==========================================================================
   ENDING COVER & FOOTER
   ========================================================================== */
.ending-cover {
    position: relative;
    width: 100%;
    min-height: 90vh;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    padding: 6rem 4%;
}

.ending-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, 
                rgba(15, 34, 24, 0.95) 0%, 
                rgba(15, 34, 24, 0.75) 50%, 
                rgba(15, 34, 24, 0.95) 100%);
    z-index: 1;
}

.ending-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.ending-network-graphic {
    margin-bottom: 3rem;
    opacity: 0.85;
}

.ending-text-box {
    border-left: 3px solid var(--color-accent);
    padding: 1rem 0 1rem 2.5rem;
    text-align: left;
    max-width: 700px;
}

.ending-message {
    font-family: var(--font-serif);
    font-size: clamp(1.2rem, 2vw, 1.6rem);
    font-style: italic;
    line-height: 1.7;
    color: #e2e8e0;
    margin-bottom: 0;
    text-align: justify;
}

/* Footer style */
.main-footer {
    background-color: #0c1a12;
    color: var(--color-text-light);
    padding: 5rem 4% 4rem 4%;
    border-top: 1px solid rgba(253, 253, 251, 0.05);
}

.footer-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
}

.footer-author-box {
    text-align: center;
}

.author-label {
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--color-accent);
    display: block;
    margin-bottom: 0.5rem;
}

.author-name {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: 1px;
}

.footer-logo {
    opacity: 0.9;
}

.footer-core-concepts {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.concept-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(253, 253, 251, 0.03);
    border: 1px solid rgba(253, 253, 251, 0.07);
    border-radius: 30px;
    padding: 0.5rem 1.2rem;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-accent-light);
}

.concept-badge svg {
    color: var(--color-accent);
}

.footer-copyright {
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 600;
    color: rgba(253, 253, 251, 0.3);
    letter-spacing: 1px;
    text-align: center;
    border-top: 1px solid rgba(253, 253, 251, 0.05);
    padding-top: 2rem;
    width: 100%;
}

/* ==========================================================================
   ANIMATIONS & EFFECTS
   ========================================================================= */

/* Reveal sections/elements on scroll */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Fade In Animation */
.animate-fade-in {
    opacity: 0;
    animation: fadeIn 1.2s ease forwards;
}

.animate-fade-in-delayed {
    opacity: 0;
    animation: fadeIn 1.5s ease 0.6s forwards;
}

/* Slide Up Animation */
.animate-slide-up {
    opacity: 0;
    transform: translateY(40px);
    animation: slideUp 1.2s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

.animate-slide-up-delayed {
    opacity: 0;
    transform: translateY(40px);
    animation: slideUp 1.2s cubic-bezier(0.25, 0.8, 0.25, 1) 0.3s forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

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

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

/* Drawing line for Hero Connect */
@keyframes drawLine {
    to {
        stroke-dashoffset: 0;
    }
}

/* Map Ping animation */
@keyframes markerFlash {
    0%, 100% { fill: #d94e34; }
    50% { fill: #fdfdfb; }
}

@keyframes waveExpand {
    0% {
        r: 10;
        opacity: 0.9;
        stroke-width: 1.5;
    }
    100% {
        r: 35;
        opacity: 0;
        stroke-width: 0.25;
    }
}

/* Dot motion dash */
@keyframes dashMotion {
    to {
        stroke-dashoffset: -400;
    }
}

/* Flow Direction Path */
@keyframes flowRight {
    0% {
        stroke-dashoffset: 200;
    }
    100% {
        stroke-dashoffset: 0;
    }
}

@keyframes flowLeft {
    0% {
        stroke-dashoffset: -200;
    }
    100% {
        stroke-dashoffset: 0;
    }
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 992px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .feature-block-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .feature-block-image {
        height: 320px;
    }

    .ip-grid-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .ent-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .alliance-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    p {
        font-size: 1.05rem;
        line-height: 1.7;
    }

    .editorial-section {
        padding: 3.5rem 5%;
    }

    .hero-cover {
        background-attachment: scroll;
    }

    .chapter-opener {
        background-attachment: scroll;
        height: 40vh;
    }

    .ending-cover {
        background-attachment: scroll;
    }

    .parties-grid {
        gap: 0.8rem;
    }

    .party-arrow {
        display: none;
    }

    .party-item {
        min-width: 120px;
    }

    .data-cards-grid {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }

    .ip-grid-items {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .main-header {
        padding: 1.5rem 5%;
    }
    
    .brand-logo svg {
        width: 80px;
    }

    .header-meta {
        font-size: 0.65rem;
        display: none; /* Hide on small screens to avoid clutter */
    }

    .sapo-box {
        padding-left: 1rem;
        margin-bottom: 2.5rem;
    }

    .hero-network-container {
        padding: 1rem 0.5rem;
    }

    .dashboard-left-card, .dashboard-right-card {
        padding: 1.5rem;
    }

    .ip-grid-items {
        grid-template-columns: 1fr;
    }

    .ent-container {
        padding: 2rem 1.5rem;
    }
}

/* ==========================================================================
   INFOGRAPHIC LOGO BADGE
   ========================================================================== */
.has-logo-badge {
    position: relative !important;
}

.infographic-logo {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 90px;
    height: auto;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.95);
    padding: 6px;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.infographic-logo img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 4px;
    object-fit: contain;
}

.has-logo-badge:hover .infographic-logo {
    transform: scale(1.08) translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

/* Adjustments for smaller screens */
@media (max-width: 768px) {
    .infographic-logo {
        width: 70px;
        top: 10px;
        right: 10px;
        padding: 4px;
    }
}