/* SYSTEM VARIABLES & RESET */
:root {
    --color-primary: #2E7D32;
    --color-primary-dark: #1B4D22;
    --color-primary-light: #E8F5E9;
    --color-accent: #C9A227;
    --color-accent-light: #DFBA49;
    --color-bg-light: #F9F8F6;
    --color-bg-white: #FFFFFF;
    --color-bg-dark: #112214;
    --color-text-dark: #2B2C2B;
    --color-text-muted: #555655;
    --color-text-light: #8D8E8D;
    --color-wood: #5C4033;

    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Outfit', 'Inter', sans-serif;

    --shadow-premium: 0 20px 40px rgba(0, 0, 0, 0.04);
    --shadow-glass: 0 8px 32px rgba(27, 77, 34, 0.08);
    --border-glass: 1px solid rgba(201, 162, 39, 0.15);
    --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.3s ease;
}

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

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

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

/* READING PROGRESS BAR */
#progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: rgba(255, 255, 255, 0.2);
    z-index: 1000;
}

#progress-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
    transition: width 0.1s ease-out;
}

/* HERO HEADER SECTION */
.hero-section {
    position: relative;
    width: 100%;
    height: 170vh;
    /* Tăng kích thước ảnh hero lớn hơn toàn màn hình để tạo sự khoáng đạt */
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    color: var(--color-bg-white);
    padding: 8.5rem 0 4.5rem;
    /* Tăng khoảng đệm lề trên để đẩy tiêu đề/sapo xuống thấp hơn, tạo khoảng thở thoáng rộng */
    box-sizing: border-box;
}

.parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120%;
    /* Cho chuyển động parallax */
    background-size: cover;
    background-position: center;
    z-index: 1;
    transform: translateY(0);
    will-change: transform;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(11, 29, 13, 0.96) 0%, rgba(17, 34, 20, 0.88) 50%, rgba(54, 38, 29, 0.6) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    width: 80%;
    /* Đồng bộ chiều rộng lề với phần thân bài viết để thẳng hàng lề trái/phải */
    max-width: 1160px;
    margin: 0 auto;
    /* Căn giữa tuyệt đối giúp lề trái và phải bằng nhau chằn chặn */
    padding: 2rem 0;
    display: flex;
    flex-direction: column;
    text-align: left;
}

/* TOP LABEL TRANG TRÍ */
.hero-header-top {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-accent-light);
    margin-bottom: 2.5rem;
}

.magazine-divider {
    color: rgba(255, 255, 255, 0.3);
}

.magazine-category {
    color: rgba(255, 255, 255, 0.7);
}

/* BỐ CỤC CHÍNH BẤT ĐỐI XỨNG */
.hero-main-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-bottom: 3.5rem;
}

@media (min-width: 992px) {
    .hero-main-layout {
        grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
        gap: 5rem;
        align-items: start;
        /* Căn lề đỉnh (align-items: start) giúp Lời mở đầu thẳng hàng ngang với tiêu đề chính, không bị nhô cao sát lề trên */
    }
}

.hero-title-container {
    position: relative;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    line-height: 1.2;
    font-weight: 700;
    text-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    margin-bottom: 1.5rem;
}

@media (min-width: 769px) {
    .hero-title {
        font-size: 4rem;
    }
}

.hero-title .highlight {
    color: var(--color-accent);
    background: linear-gradient(120deg, rgba(201, 162, 39, 0.15) 0%, rgba(201, 162, 39, 0) 100%);
    padding: 0 0.5rem;
    display: inline-block;
}

.hero-title-line {
    width: 80px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 2px;
    margin-top: 1.5rem;
}

/* SAPO MỚI SAPO */
.hero-sapo-container {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-left: 4px solid var(--color-accent);
    padding: 2.5rem;
    border-radius: 0 20px 20px 0;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.sapo-badge {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--color-accent-light);
    letter-spacing: 1.5px;
    margin-bottom: 1rem;
    display: inline-block;
}

.hero-sapo {
    font-size: 1.15rem;
    line-height: 1.8;
    font-weight: 300;
    color: #E2E8F0;
}

.hero-sapo:not(:last-child) {
    margin-bottom: 1.5rem;
}

.hero-tags {
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 3.5rem;
}

.tag-item {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    padding: 0.5rem 1.2rem;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-fast);
}

.tag-item:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--color-accent-light);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-top: 1rem;
    align-self: center;
}

.mouse-icon {
    width: 24px;
    height: 40px;
    border: 2px solid var(--color-accent-light);
    border-radius: 12px;
    position: relative;
}

.mouse-wheel {
    width: 4px;
    height: 8px;
    background-color: var(--color-accent-light);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollMouse 1.5s infinite;
}

@keyframes scrollMouse {
    0% {
        opacity: 1;
        transform: translate(-50%, 0);
    }

    100% {
        opacity: 0;
        transform: translate(-50%, 15px);
    }
}

/* LAYOUT WRAPPERS */
.main-container {
    width: 100%;
    position: relative;
    z-index: 4;
}

.wrapper-narrow {
    width: 80%;
    max-width: 750px;
    margin: 0 auto;
    padding: 5rem 0;
}

.wrapper-wide {
    width: 80%;
    max-width: 1160px;
    margin: 0 auto;
    padding: 5rem 0;
}

/* ARTICLE TYPOGRAPHY */
p {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    color: var(--color-text-dark);
    margin-bottom: 2rem;
    text-align: justify;
}

p.dropcap::first-letter {
    font-family: var(--font-serif);
    font-size: 4rem;
    float: left;
    margin-right: 0.6rem;
    line-height: 0.9;
    color: var(--color-primary);
    font-weight: 700;
}

/* SPLIT LAYOUT (DESKTOP) */
.split-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 4rem;
}

@media (min-width: 1200px) {
    .split-layout {
        grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
        /* Tỉ lệ cột tối ưu tránh đè */
    }

    .text-column {
        padding-right: 3.5rem;
        /* Căn lề đệm bên phải, đảm bảo chữ không bao giờ bị đè hoặc che khuất */
    }
}

.text-column {
    position: relative;
    min-width: 0;
    /* Ngăn chặn Grid item bị phình to do nội dung con */
}

.graphics-column {
    display: none;
    /* Ẩn trên Mobile, chỉ hiện trên Desktop */
}

@media (min-width: 1200px) {
    .graphics-column {
        display: block;
    }
}

.sticky-wrapper {
    position: sticky;
    top: 80px;
    height: calc(100vh - 120px);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    /* Đẩy hộp đồ họa sát lề phải, tạo sự cân bằng lề trái/phải thị giác */
}

/* SECTION BANNER (PARALLAX EFFECT FOR EACH SECTION) */
.section-banner {
    position: relative;
    width: 100%;
    height: 45vh;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    /* Parallax effect */
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-bottom: 3rem;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(17, 34, 20, 0.85), rgba(17, 34, 20, 0.65));
    z-index: 1;
}

.banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-bg-white);
    padding: 1rem;
}

.part-number {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 0.8rem;
    display: block;
}

.part-title {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.section-divider-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-divider-title span {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--color-accent);
    font-weight: 600;
    letter-spacing: 2px;
    display: block;
    margin-bottom: 0.5rem;
}

.section-divider-title h2 {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    color: var(--color-primary-dark);
}

/* INFOGRAPHIC CONTAINER & CARDS */
.infographic-block {
    background: var(--color-bg-white);
    border: 1px solid rgba(46, 125, 50, 0.08);
    border-radius: 20px;
    padding: 2.5rem;
    margin: 3rem 0;
    box-shadow: var(--shadow-premium);
    overflow: hidden;
    position: relative;
}

.info-header {
    border-bottom: 1px solid rgba(46, 125, 50, 0.1);
    padding-bottom: 1.2rem;
    margin-bottom: 2rem;
}

.info-sub {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-accent);
    font-weight: 600;
    display: block;
    margin-bottom: 0.3rem;
}

.info-header h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-primary-dark);
}

/* INFOGRAPHIC 0: HÀNH TRÌNH GIA TĂNG GIÁ TRỊ (FLOW HORIZONTAL) */
.infographic-flow-container {
    position: relative;
    padding: 2rem 0;
    width: 100%;
}

.flow-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

@media (min-width: 769px) {
    .flow-steps {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 1rem;
    }
}

.flow-step-card {
    background: var(--color-bg-white);
    border: 1px solid rgba(46, 125, 50, 0.1);
    border-radius: 16px;
    padding: 1.5rem;
    flex: 1;
    min-width: 180px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
    transition: var(--transition-fast);
    position: relative;
    z-index: 5;
}

.flow-step-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glass);
}

.step-icon-wrapper {
    width: 50px;
    height: 50px;
    background: var(--color-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--color-primary);
    transition: var(--transition-fast);
}

.flow-step-card:hover .step-icon-wrapper {
    background: var(--color-accent);
    color: var(--color-bg-white);
}

.svg-icon {
    width: 24px;
    height: 24px;
}

.step-num {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 0.2rem;
}

.step-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-dark);
}

.flow-arrow {
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--color-accent);
}

@media (min-width: 769px) {
    .flow-arrow {
        transform: rotate(0deg);
    }
}

@media (max-width: 768px) {
    .flow-arrow {
        transform: rotate(90deg);
        margin: 0.5rem 0;
    }
}

.svg-arrow {
    width: 20px;
    height: 20px;
}

.connection-line-svg {
    display: none;
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 10px;
    transform: translateY(-50%);
    z-index: 1;
}

@media (min-width: 1200px) {
    .connection-line-svg {
        display: block;
    }
}

/* INFOGRAPHIC 1.1: VERTICAL FLOWCHART (TRÀ ÁI QUỐC) */
.flowchart-vertical {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem 0;
}

.flowchart-node {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--color-bg-light);
    border: 1px solid rgba(46, 125, 50, 0.08);
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    width: 100%;
    max-width: 450px;
    transition: var(--transition-fast);
}

.flowchart-node:hover {
    transform: translateX(10px);
    border-color: var(--color-primary);
    background: var(--color-bg-white);
    box-shadow: 0 4px 15px rgba(46, 125, 50, 0.05);
}

.flowchart-node.special-node {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-bg-white);
    border: none;
    box-shadow: 0 8px 20px rgba(46, 125, 50, 0.2);
}

.flowchart-node.special-node .node-icon {
    background: rgba(255, 255, 255, 0.2);
}

.node-icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.node-text {
    font-size: 0.95rem;
    font-weight: 500;
}

.flowchart-line {
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.line-svg {
    height: 100%;
    width: 10px;
}

/* INFOGRAPHIC 1.2: NUMERIC CARD (3 TRIỆU/KG) */
.number-card-container {
    margin: 2.5rem 0;
}

.number-card-glass {
    position: relative;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border: var(--border-glass);
    border-radius: 20px;
    padding: 3rem 2rem;
    box-shadow: var(--shadow-glass);
    overflow: hidden;
    text-align: center;
}

.card-bg-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.deco-leaf {
    position: absolute;
    right: -10px;
    bottom: -10px;
    width: 150px;
    height: 150px;
    opacity: 0.7;
}

.card-metric {
    position: relative;
    z-index: 2;
    font-family: var(--font-serif);
    font-size: 3.8rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.card-metric .unit {
    font-size: 1.5rem;
    font-family: var(--font-sans);
    font-weight: 500;
    color: var(--color-primary-dark);
}

.card-label {
    position: relative;
    z-index: 2;
    font-family: var(--font-sans);
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-primary-dark);
    font-weight: 700;
    margin-bottom: 1rem;
}

.card-desc {
    position: relative;
    z-index: 2;
    font-size: 0.95rem;
    color: var(--color-text-muted);
    max-width: 500px;
    margin: 0 auto 2rem;
}

.card-illustrations {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.badge-pill {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.4rem 1rem;
    border-radius: 30px;
}

.badge-pill.highlight {
    background: var(--color-accent);
    color: var(--color-bg-white);
}

.badge-arrow {
    color: var(--color-text-light);
    font-weight: 700;
}

/* INFOGRAPHIC 2.1: ECOSYSTEM MINDMAP (HTX TÀI HOAN) */
.ecosystem-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding: 1rem 0;
}

@media (min-width: 769px) {
    .ecosystem-container {
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
        align-items: center;
        gap: 3rem;
    }
}

.eco-center {
    display: flex;
    justify-content: center;
}

.center-circle {
    width: 140px;
    height: 140px;
    background: radial-gradient(circle, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(46, 125, 50, 0.3);
    border: 4px solid var(--color-accent);
    animation: pulseCircle 3s infinite;
}

@keyframes pulseCircle {
    0% {
        transform: scale(1);
        box-shadow: 0 10px 30px rgba(46, 125, 50, 0.3);
    }

    50% {
        transform: scale(1.05);
        box-shadow: 0 10px 40px rgba(201, 162, 39, 0.4);
    }

    100% {
        transform: scale(1);
        box-shadow: 0 10px 30px rgba(46, 125, 50, 0.3);
    }
}

.center-text {
    color: var(--color-bg-white);
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.3;
    text-align: center;
}

.eco-branches {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 480px) {
    .eco-branches {
        grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    }
}

.eco-branch-card {
    background: var(--color-bg-light);
    border-left: 3px solid var(--color-accent);
    padding: 1.2rem;
    border-radius: 0 12px 12px 0;
    transition: var(--transition-fast);
}

.eco-branch-card:hover {
    background: var(--color-primary-light);
    border-left-color: var(--color-primary);
    transform: translateY(-3px);
}

.branch-num {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 0.2rem;
}

.branch-desc {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-weight: 500;
    line-height: 1.4;
}

/* INFOGRAPHIC 2.2: HORIZONTAL FLOWCHART */
.horizontal-flowchart {
    display: flex;
    overflow-x: auto;
    gap: 0.8rem;
    padding: 1.5rem 0.5rem;
    align-items: center;
    scroll-snap-type: x mandatory;
}

.horizontal-flowchart::-webkit-scrollbar {
    height: 6px;
}

.horizontal-flowchart::-webkit-scrollbar-track {
    background: var(--color-bg-light);
    border-radius: 10px;
}

.horizontal-flowchart::-webkit-scrollbar-thumb {
    background: rgba(46, 125, 50, 0.2);
    border-radius: 10px;
}

.horizontal-flowchart::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

.h-flow-step {
    flex: 0 0 120px;
    background: var(--color-bg-light);
    border: 1px solid rgba(46, 125, 50, 0.08);
    border-radius: 12px;
    padding: 1rem;
    text-align: center;
    scroll-snap-align: center;
    transition: var(--transition-fast);
}

.h-flow-step:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    background: var(--color-bg-white);
}

.h-flow-step.special {
    background: linear-gradient(135deg, var(--color-accent) 0%, #B89020 100%);
    color: var(--color-bg-white);
}

.h-flow-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.h-flow-name {
    font-size: 0.8rem;
    font-weight: 600;
}

.h-flow-arrow {
    color: var(--color-accent);
    font-weight: 700;
    font-size: 1.1rem;
}

.social-digital-marketing {
    background: var(--color-bg-light);
    border-radius: 12px;
    padding: 1.2rem;
    margin-top: 1.5rem;
}

.marketing-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    display: block;
    margin-bottom: 0.8rem;
}

.marketing-channels {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.channel-badge {
    background: var(--color-bg-white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.svg-inline-brand {
    width: 14px;
    height: 14px;
}

.channel-badge.fb {
    color: #1877F2;
}

.channel-badge.tt {
    color: #000000;
}

.channel-badge.zl {
    color: #0068FF;
}

.zl-text {
    display: none;
}

/* dùng chữ hoặc logo */
.channel-badge.qr {
    color: var(--color-primary);
}

.channel-badge.logistics {
    color: var(--color-wood);
}

/* INFOGRAPHIC 3.1: INTELLECTUAL PROPERTY GRID */
.ip-assets-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.2rem;
}

@media (min-width: 480px) {
    .ip-assets-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }
}

.ip-card {
    background: var(--color-bg-light);
    border: 1px solid rgba(46, 125, 50, 0.05);
    padding: 1.5rem;
    border-radius: 14px;
    transition: var(--transition-fast);
}

.ip-card:hover {
    transform: scale(1.03);
    border-color: var(--color-accent);
    background: var(--color-bg-white);
    box-shadow: var(--shadow-premium);
}

.ip-card.full-width-card {
    grid-column: 1 / -1;
    background: var(--color-primary-light);
    border-color: rgba(46, 125, 50, 0.15);
}

.ip-icon {
    font-size: 1.6rem;
    margin-bottom: 0.5rem;
}

.ip-title {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 0.4rem;
}

.ip-desc {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* INFOGRAPHIC 3.2: TWO COLUMN COMPARISON */
.comparison-container {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
}

@media (min-width: 769px) {
    .comparison-container {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    }
}

.comparison-column {
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.01);
}

.comparison-column.no-protection {
    background: #FAF3F2;
    border: 1px solid rgba(220, 53, 69, 0.1);
}

.comparison-column.protected {
    background: #F4FAF5;
    border: 1px solid rgba(40, 167, 69, 0.15);
}

.col-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}

.col-icon {
    width: 24px;
    height: 24px;
}

.no-protection .col-header {
    color: #C53030;
}

.protected .col-header {
    color: var(--color-primary);
}

.col-header h4 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
}

.comparison-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.comparison-list li {
    font-size: 0.9rem;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    color: var(--color-text-dark);
}

.bullet-icon {
    font-size: 1.1rem;
    line-height: 1;
}

/* INFOGRAPHIC 4.1: ROADMAP TIMELINE */
.roadmap-container {
    position: relative;
    padding-left: 2.5rem;
    margin: 2rem 0;
}

.roadmap-track {
    position: absolute;
    top: 0;
    left: 14px;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--color-accent) 0%, var(--color-primary) 100%);
}

.roadmap-step {
    position: relative;
    margin-bottom: 2rem;
}

.roadmap-step:last-child {
    margin-bottom: 0;
}

.roadmap-dot {
    position: absolute;
    left: -2.5rem;
    top: 5px;
    width: 30px;
    height: 30px;
    background: var(--color-bg-white);
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    z-index: 2;
    transition: var(--transition-fast);
}

.roadmap-step:hover .roadmap-dot {
    background: var(--color-primary);
    color: var(--color-bg-white);
    border-color: var(--color-primary);
    box-shadow: 0 0 10px rgba(46, 125, 50, 0.5);
    transform: scale(1.15);
}

.roadmap-content-box {
    background: var(--color-bg-light);
    border-radius: 12px;
    padding: 1.2rem;
    border: 1px solid rgba(0, 0, 0, 0.02);
    transition: var(--transition-fast);
}

.roadmap-step:hover .roadmap-content-box {
    background: var(--color-bg-white);
    border-color: rgba(46, 125, 50, 0.1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.03);
}

.roadmap-content-box h5 {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 0.3rem;
}

.roadmap-content-box p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* INFOGRAPHIC 4.2: CIRCLE WHEEL (8 TRỤ CỘT) */
.wheel-container {
    position: relative;
    width: 100%;
    max-width: 420px;
    height: 420px;
    margin: 3rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.wheel-center {
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, var(--color-accent) 0%, #B89020 100%);
    color: var(--color-bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 0.85rem;
    text-align: center;
    line-height: 1.3;
    z-index: 10;
    box-shadow: 0 10px 25px rgba(201, 162, 39, 0.4);
    border: 3px solid var(--color-bg-white);
}

.wheel-nodes {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.wheel-node {
    position: absolute;
    width: 76px;
    height: 76px;
    background: var(--color-bg-light);
    border: 1px solid rgba(46, 125, 50, 0.1);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    transition: var(--transition-smooth);
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);

    /* Bố trí xoay tròn 8 node dùng CSS trigonometry (hoặc absolute positioning kế thừa từ JS) */
    --angle: calc(var(--i) * (360deg / 8));
    top: calc(50% - 38px + 155px * sin(var(--angle)));
    left: calc(50% - 38px + 155px * cos(var(--angle)));
}

.wheel-node:hover {
    transform: scale(1.15);
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glass);
}

.wheel-icon {
    font-size: 1.2rem;
    line-height: 1;
    margin-bottom: 0.1rem;
}

.wheel-label {
    font-size: 0.55rem;
    font-weight: 700;
    text-align: center;
    color: var(--color-text-dark);
    line-height: 1.2;
}

/* ILLUSTRATION BOXES IN STICKY WRAPPER */
.illustration-box {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: var(--border-glass);
    border-radius: 20px;
    padding: 2rem;
    width: 100%;
    max-width: 380px;
    height: auto;
    max-height: 380px;
    aspect-ratio: 1;
    /* Tự động co giãn theo tỷ lệ 1:1, không bao giờ tràn cột */
    box-shadow: var(--shadow-premium);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-smooth);
}

.illustration-box.active {
    opacity: 1;
    transform: translateY(0);
}

.glass-header {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-accent);
    font-weight: 700;
    border-bottom: 1px solid rgba(46, 125, 50, 0.08);
    padding-bottom: 0.6rem;
}

.graphic-stat-row {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
}

.stat-box-mini {
    flex: 1;
    background: var(--color-bg-light);
    padding: 0.8rem;
    border-radius: 12px;
    text-align: center;
}

.num-mini {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
}

.lbl-mini {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.illustration-svg-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 1;
}

.tea-illustration {
    width: 130px;
    height: 130px;
}

/* OCOP Badge Showcase */
.ocop-showcase {
    text-align: center;
    margin: 1rem 0;
}

.star-rating {
    font-size: 1.4rem;
    color: var(--color-accent);
    margin-bottom: 0.2rem;
    letter-spacing: 2px;
    animation: goldShine 2s infinite alternate;
}

@keyframes goldShine {
    0% {
        filter: drop-shadow(0 0 2px rgba(201, 162, 39, 0.3));
    }

    100% {
        filter: drop-shadow(0 0 8px rgba(201, 162, 39, 0.8));
    }
}

.ocop-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-accent) 0%, #9F7E1B 100%);
    color: var(--color-bg-white);
    padding: 0.5rem 1.2rem;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 700;
    box-shadow: 0 4px 10px rgba(201, 162, 39, 0.3);
}

.chart-simple-progress {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-top: 1rem;
}

.progress-item {
    font-size: 0.75rem;
}

.progress-lbl {
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: 0.2rem;
}

.progress-track {
    width: 100%;
    height: 6px;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 3px;
    width: 0%;
    /* chạy bằng js */
    transition: width 1.5s cubic-bezier(0.1, 1, 0.1, 1);
}

/* Part 3 IP Shield Showcase */
.ip-shield-showcase {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 1.5rem 0;
}

.shield-circle {
    width: 100px;
    height: 100px;
    background: var(--color-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--color-accent);
}

.shield-svg {
    width: 50px;
    height: 50px;
    color: var(--color-accent);
}

.shield-tag {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-top: 0.8rem;
    letter-spacing: 1px;
}

.legal-stamps {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stamp-item {
    background: var(--color-bg-light);
    border: 1px solid rgba(46, 125, 50, 0.1);
    padding: 0.4rem 1rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-dark);
}

/* Part 4 smart agricultural indicators */
.smart-agri-status {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1rem;
}

.status-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 500;
}

.status-row .badge {
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.65rem;
    font-weight: 700;
}

.status-row .badge.active {
    background: rgba(46, 125, 50, 0.1);
    color: var(--color-primary);
}

.status-row .badge.warning {
    background: rgba(201, 162, 39, 0.1);
    color: var(--color-accent);
}

.smart-illustration {
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 1;
}

.drone-svg {
    width: 110px;
    height: 110px;
}

.propeller {
    transform-origin: center;
    animation: spinPropeller 0.4s linear infinite;
}

@keyframes spinPropeller {
    100% {
        transform: rotate(360deg);
    }
}

/* REVEAL ON SCROLL EFFECT */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-smooth);
}

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

/* CHỮ KÝ TÁC GIẢ */
.author-signature {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
    font-style: italic;
    color: var(--color-accent);
    text-align: right;
    margin-top: 3rem;
    margin-bottom: 2rem;
    position: relative;
    padding-right: 2rem;
}

.author-signature::before {
    content: "";
    position: absolute;
    right: 0;
    top: 50%;
    width: 1.5rem;
    height: 1px;
    background-color: var(--color-accent);
}

/* FOOTER TỐI GIẢN */
.footer-simple {
    background-color: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
    padding: 3rem 1rem;
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-simple p {
    margin: 0;
    color: rgba(255, 255, 255, 0.6) !important;
    text-align: center;
    font-family: var(--font-sans);
}

/* TÊN TÁC GIẢ TRONG FOOTER */
.footer-author {
    font-family: var(--font-serif);
    font-size: 1.375rem;
    /* Tăng 2px (từ 1.25rem ~ 20px lên 1.375rem ~ 22px) để nổi bật và sang trọng */
    font-weight: 700;
    color: var(--color-accent) !important;
    margin-bottom: 0.6rem !important;
    text-align: center;
    letter-spacing: 1px;
}

/* RESPONSIVE LAYOUT TRỰC QUAN */
@media (max-width: 1199px) {
    html {
        font-size: 15px;
    }

    .wrapper-narrow,
    .wrapper-wide {
        width: 85%;
        padding: 4rem 0;
    }

    .hero-content {
        width: 85%;
        /* Đồng bộ lề Hero với lề phần thân trên Tablet */
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .part-title {
        font-size: 2.2rem;
    }

    .section-banner {
        height: 35vh;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    /* Thiết lập lề tối ưu cho di động - ĐẶC BIỆT RESPONSIVE CHO MOBILE */
    .wrapper-narrow,
    .wrapper-wide {
        width: 92%;
        padding: 3rem 0;
    }

    .hero-section {
        padding: 8rem 0 4rem;
        /* Tăng padding trên di động để Lời mở đầu không bị sát lề trên */
        height: auto;
        /* Cho phép hero kéo giãn chiều cao tự do trên di động nếu nội dung dài */
        min-height: 110vh;
        /* Tăng kích thước tối thiểu của hero lên 110vh */
    }

    .hero-content {
        width: 92%;
        /* Đồng bộ lề Hero với lề phần thân trên Mobile */
    }

    /* Tạo khoảng đệm lề trái/phải an toàn cho cột chữ trên di động, tránh dính mép màn hình */
    .text-column {
        padding: 0 1rem;
        box-sizing: border-box;
    }

    .hero-main-layout {
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.2rem;
        text-align: center;
    }

    .hero-title-line {
        margin: 1rem auto 0;
    }

    .hero-sapo-container {
        padding: 1.5rem;
        border-radius: 12px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }

    .hero-sapo {
        font-size: 1.05rem;
        line-height: 1.7;
    }

    .hero-tags {
        justify-content: center;
        margin-bottom: 2.5rem;
    }

    .section-banner {
        height: 30vh;
        margin-bottom: 2rem;
    }

    .part-title {
        font-size: 2rem;
    }

    .infographic-block {
        padding: 1.25rem 0.75rem;
        /* Giảm padding trái/phải để tăng không gian nội dung cho infographic */
        margin: 1.5rem 0;
        border-radius: 14px;
    }

    .info-header {
        margin-bottom: 1.5rem;
        padding-bottom: 1rem;
    }

    .info-header h3 {
        font-size: 1.3rem;
    }

    .flowchart-node {
        gap: 1rem;
        padding: 0.8rem 1rem;
    }

    .node-text {
        font-size: 0.9rem;
    }

    .number-card-glass {
        padding: 2rem 1.2rem;
        border-radius: 14px;
    }

    .card-metric {
        font-size: 2.8rem;
    }

    .card-label {
        font-size: 1.1rem;
    }

    .card-desc {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }

    /* Vòng tròn 8 trụ cột trên mobile */
    .wheel-container {
        width: 320px;
        height: 320px;
        margin: 2rem auto;
    }

    .wheel-center {
        width: 80px;
        height: 80px;
        font-size: 0.75rem;
    }

    .wheel-node {
        width: 64px;
        height: 64px;
        top: calc(50% - 32px + 115px * sin(var(--angle)));
        left: calc(50% - 32px + 115px * cos(var(--angle)));
    }

    .wheel-icon {
        font-size: 1rem;
    }

    .wheel-label {
        font-size: 0.45rem;
    }

    /* Đảm bảo vòng tròn không bị tràn trên màn hình siêu nhỏ (vd: iPhone 5/SE width: 320px) */
    @media (max-width: 350px) {
        .wheel-container {
            transform: scale(0.8);
            /* Giảm scale từ 0.85 xuống 0.8 để khít hoàn toàn màn hình 320px */
            transform-origin: center;
            margin: 0.5rem auto;
        }

        .infographic-block {
            padding: 1rem 0.5rem;
        }
    }

    /* Thêm media query trung gian để tối ưu cho màn hình 360px - 375px */
    @media (min-width: 351px) and (max-width: 380px) {
        .wheel-container {
            transform: scale(0.88);
            transform-origin: center;
            margin: 0.8rem auto;
        }

        .infographic-block {
            padding: 1.25rem 0.5rem;
        }
    }

    .comparison-column {
        padding: 1.5rem;
        border-radius: 12px;
    }
}