:root {
    /* Màu thương hiệu */
    --color-primary-dark: #031C47;
    --color-primary: #0047AF;
    --color-primary-bright: #0056D2;
    --color-link: #1A75FF;
    --color-link-hover: #0047AF;
    --color-activity-link-hover: #031C47;

    /* Màu chữ */
    --color-text: #1F3446;
    --color-text-muted: #5B6780;
    --color-text-secondary: #607486;
    --color-white: #FFFFFF;

    /* Nền */
    --color-bg-white: #FFFFFF;
    --color-bg-light: #F4F7F9;
    --color-bg-logo: rgba(244, 247, 249, 0.5);
    --color-header: #031C47;
    --color-header-fixed-bg: rgb(3, 28, 71, 1);
    --color-footer: #101820;

    /* Viền */
    --color-border-blue: #9AC6F8;
    --color-border-light: #B9CBD6;
    --color-border-subtle: #E5EAEE;
    --color-border-divider: rgba(96, 116, 134, 0.3);

    /* Accent */
    --color-facebook: #0866FF;
    --color-bg-summary: #E8F2FC;
    --color-quote-overlay: linear-gradient(180deg, rgba(3, 28, 71, 0.15) 0%, rgba(3, 28, 71, 0.92) 100%);

    /* Gradient nút */
    --gradient-primary: linear-gradient(90deg, #338FF0 0%, #42C2D9 100%);
    --gradient-primary-reverse: linear-gradient(90deg, #42C2D9 0%, #338FF0 100%);

    /* Font */
    --font-heading: Manrope, sans-serif;
    --font-body: "Noto Sans", sans-serif;
    --font-accent: Barlow, Manrope, sans-serif;
    --font-montserrat: Montserrat, sans-serif;

    --font-size-xs: 13px;
    --font-size-sm: 15px;
    --font-size-base: 16px;
    --font-size-md: 18px;
    --font-size-lg: 20px;
    --font-size-xl: 22px;
    --font-size-2xl: 40px;
    --font-size-3xl: 44px;
    --font-size-icon: 24px;

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.2;
    --line-height-base: 1.4;
    --line-height-lg: 1.75;
    --line-height-title: 60px;

    /* Khoảng cách */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 28px;
    --spacing-2xl: 48px;
    --section-overlap: 100px;
    --section-header-padding-top: 100px;

    /* Layout */
    --logo-max-width: 250px;
    --container-title-max: 960px;

    /* Bo góc */
    --radius-sm: 5px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-btn: 30px;
    --radius-btn-pill: 50px;
    --radius-section: 100px;

    /* Đổ bóng */
    --shadow-card: 0 8px 24px rgba(3, 28, 71, 0.08);
    --shadow-card-sm: 0 4px 5px rgba(0, 0, 0, 0.1);
    --shadow-header-fixed: 0 4px 16px rgba(0, 0, 0, 0.2);

    /* Hiệu ứng */
    --transition-base: 0.3s ease;
    --link-more-arrow-shift: 6px;
    --figure-hover-border: 7px solid rgba(255, 255, 255, 0.45);

    /* Z-index */
    --z-article: 7;
    --z-initiative: 8;
    --z-activity: 9;
    --z-author: 10;
    --z-video: 10;
    --z-header-fixed: 1030;
    --z-scroll-top: 1040;

    /* Sidebar bài viết */
    --article-sidebar-sticky-top: 120px;
    --article-sidebar-max-height: calc(100vh - var(--article-sidebar-sticky-top) - 48px);
}

body {
    font-family: var(--font-body);
}

/* Custom Text Break Utilities (1200px) */
/* Chỉ áp dụng trên Desktop (>1200px) */
@media (min-width: 1201px) {
    .br-desktop-block {
        display: block !important;
    }

    .br-desktop-inline {
        display: inline !important;
    }
}

/* Chỉ áp dụng trên Mobile (<=1200px) */
@media (max-width: 1200px) {
    .br-mobile-inline {
        display: inline !important;
    }

    .br-mobile-block {
        display: block !important;
    }
}

/* Header */
.header {
    padding: 30px 0 20px 0;
    width: 100%;
    background-color: var(--color-header);
    border-bottom: 1px solid var(--color-white);
    transition: padding var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base);
}

.header.is-fixed {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header-fixed);
    padding: 12px 0;
    background-color: var(--color-header-fixed-bg);
    box-shadow: var(--shadow-header-fixed);
}

.header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-nav-list .nav-link {
    text-transform: uppercase;
    font-weight: normal;
    font-size: var(--font-size-sm);
    color: var(--color-white);
    transition: all var(--transition-base);
}

.header-nav-list .nav-link:hover {
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 5px;
    text-decoration-thickness: 1px;
    text-decoration-style: solid;
    text-decoration-skip-ink: none;
}

.header-nav-list .nav-link.active {
    text-decoration: underline;
    text-underline-offset: 5px;
}

@media (max-width: 1199px) {
    .header-nav-list .nav-link {
        font-size: 14px;
    }
}

@media (max-width: 991px) {
    .header {
        padding: 20px 0 16px;
    }

    .header.is-fixed {
        padding: 10px 0;
    }

    .header-logo {
        max-width: 140px;
    }

    .header-nav-list {
        gap: var(--spacing-md) !important;
    }
}

@media (max-width: 767px) {
    .header-row {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }

    .header-nav {
        width: 100%;
        justify-content: flex-start !important;
    }
}

@media (max-width: 575px) {
    .header {
        padding: 16px 0 12px;
    }

    .header-logo {
        max-width: 120px;
    }

    .header-nav-list {
        gap: var(--spacing-sm) var(--spacing-md) !important;
    }

    .header-nav-list .nav-link {
        font-size: 12px;
    }
}

/* end header */

/* Footer */
.footer {
    background-color: var(--color-footer);
}

.footer-desc p {
    color: var(--color-white);
    text-align: center;
    font-family: var(--font-body);
    font-size: var(--font-size-xs);
    font-style: normal;
    font-weight: var(--font-weight-normal);
    line-height: 160%;
}

.footer-social-links {
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: var(--font-size-base);
    font-style: normal;
    font-weight: var(--font-weight-medium);
    line-height: 130%;
}

.footer-social-links a {
    text-decoration: none;
    color: var(--color-white);
}

.footer-social-links a:hover {
    color: var(--color-facebook);
}

@media (max-width: 991px) {
    .footer-desc p {
        font-size: 12px;
        line-height: 1.6;
    }

    .footer-social-links {
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 575px) {
    .footer-desc p {
        padding: 0 var(--spacing-sm);
    }
}

/* end footer */

/* Scroll to top */
.scroll-to-top {
    position: fixed;
    right: var(--spacing-lg);
    bottom: var(--spacing-lg);
    z-index: var(--z-scroll-top);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-card);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base), background var(--transition-base);
}

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

.scroll-to-top:hover {
    background: var(--gradient-primary-reverse);
}

.scroll-to-top:focus-visible {
    outline: 2px solid var(--color-white);
    outline-offset: 3px;
}

@media (max-width: 575px) {
    .scroll-to-top {
        right: var(--spacing-md);
        bottom: var(--spacing-2xl);
        width: 44px;
        height: 44px;
    }
}

/* end scroll to top */

/* Link xem thêm + hiệu ứng mũi tên (dùng chung) */
.link-more {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-link);
    font-weight: var(--font-weight-medium);
    line-height: 1;
    text-decoration: none;
    transition: color var(--transition-base);
}

.link-more--inline {
    display: inline-block;
    margin-left: var(--spacing-xs);
    vertical-align: baseline;
}

.link-more__arrow {
    display: inline-block;
    transition: transform var(--transition-base);
}

.link-more:hover {
    color: var(--color-link-hover);
}

.link-more:hover .link-more__arrow,
.link-more:focus-visible .link-more__arrow {
    transform: translateX(var(--link-more-arrow-shift));
}

@media (max-width: 575px) {
    .link-more {
        font-size: var(--font-size-sm);
    }
}

/* end link xem thêm */

/* Xuống dòng responsive (thay <br>, ẩn trên mobile) */
.line-break {
    display: block;
}

@media (max-width: 575px) {
    .line-break {
        display: none;
    }
}

/* end line-break */

/* Section about & author */
.section-about-img .figure,
.section-author-img .figure {
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all var(--transition-base);
}

.section-about-content,
.section-author-desc {
    color: var(--color-text);
    font-weight: var(--font-weight-normal);
}

.section-about-content p,
.section-author-content p {
    color: var(--color-text);
    line-height: 18px;
    margin: 0 0 12px 0;
    text-align: justify;
    padding: 0;
}

.section-about-content a,
.section-author-content a {
    color: var(--color-primary);
    text-decoration-line: underline;
    text-decoration-style: solid;
    text-decoration-skip-ink: auto;
    text-decoration-thickness: auto;
    text-underline-offset: auto;
    text-underline-position: from-font;
}

.section-author {
    background-color: var(--color-bg-light);
    border-radius: var(--radius-section);
    position: relative;
    z-index: var(--z-author);
}

@media (max-width: 991px) {

    .section-about-content p,
    .section-author-content p {
        line-height: 1.5;
    }

    .section-author {
        border-radius: 48px;
    }
}

@media (max-width: 768px) {
    .section-about {
        padding-top: 1.5rem !important;
    }

    .section-author {
        padding: 1rem 0 !important;
    }

    .section-author .container {
        padding: 2rem 0 !important;
    }
}

@media (max-width: 575px) {

    .section-about-img .figure,
    .section-author-img .figure {
        width: 100%;
        height: auto;
    }

    .section-about-img .figure img,
    .section-author-img .figure img {
        width: 100%;
        height: auto;
    }

    .section-about-content p,
    .section-author-content p {
        font-size: var(--font-size-sm);
        margin-bottom: 10px;
    }

    .section-author {
        padding: 30px 15px !important;
    }
}

/* end section about & author */

/* Section activity */
.section-activity {
    background-color: var(--color-primary-dark);
    margin-top: calc(var(--section-overlap) * -1);
    overflow: hidden;
    position: relative;
    z-index: var(--z-activity);
    border-bottom-left-radius: var(--radius-section);
    border-bottom-right-radius: var(--radius-section);
}

.section-activity-header {
    padding-top: var(--section-header-padding-top);
    margin-bottom: var(--spacing-2xl);
}

.section-activity-title {
    color: var(--color-white);
    text-align: center;
    font-family: var(--font-heading);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-title);
    margin-bottom: var(--spacing-md);
}

.section-activity-desc {
    color: var(--color-white);
    text-align: center;
    font-family: var(--font-body);
    font-size: var(--font-size-lg);
    font-style: italic;
    font-weight: var(--font-weight-normal);
    line-height: var(--spacing-xl);
    margin-bottom: 0;
}

.section-activity-content {
    position: relative;
}

.section-activity-item {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 36px var(--spacing-lg) 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-blue);
    background: var(--color-bg-white);
    text-align: center;
    position: relative;
    z-index: 1;
}

.section-activity-item-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: var(--logo-max-width);
    height: 150px;
    margin: 0 auto var(--spacing-lg);
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.section-activity-item-logo img {
    display: block;
    max-width: var(--logo-max-width);
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    object-position: center;
}

.section-activity-item-head {
    margin-bottom: var(--spacing-md);
}

.section-activity-item-title {
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

.section-activity-item-desc {
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: var(--font-size-md);
    font-style: italic;
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    margin-bottom: 0;
}

.section-activity-item-content {
    flex-grow: 1;
    text-align: justify;
}

.section-activity-item-content p {
    display: inline;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: var(--font-size-md);
    font-weight: 300;
    line-height: var(--line-height-tight);
    text-align: justify;
    margin: 0;
}

.section-activity-more {
    font-size: var(--font-size-md);
}

.section-activity-more:hover {
    color: var(--color-activity-link-hover);
}

@media (max-width: 991px) {
    .section-activity {
        margin-top: -60px;
        border-bottom-left-radius: 48px;
        border-bottom-right-radius: 48px;
    }

    .section-activity-header {
        padding-top: 50px;
        margin-bottom: var(--spacing-lg);
    }

    .section-activity-title {
        font-size: 32px;
        line-height: 1.25;
    }

    .section-activity-desc {
        font-size: var(--font-size-base);
        line-height: 1.5;
    }

    .section-activity-item {
        padding: 28px var(--spacing-lg) 24px;
    }

    .section-activity-item-logo {
        /* height: 120px; */
        margin-bottom: var(--spacing-md);
    }

    .section-activity-item-title {
        font-size: var(--font-size-lg);
    }
}

@media (max-width: 575px) {
    .section-activity {
        margin-top: -40px;
        border-bottom-left-radius: 40px;
        border-bottom-right-radius: 40px;
        padding-bottom: 15px !important;
    }

    .section-activity-header {
        padding-top: 25px;
        margin-bottom: var(--spacing-md);
    }

    .section-activity-title {
        font-size: 22px;
    }


    .section-activity-desc {
        font-size: var(--font-size-sm);
    }

    .section-activity-item {
        padding: 24px var(--spacing-md) 20px;
    }

    .section-activity-item-logo {
        /* height: 100px;
        max-width: 200px; */
    }

    .section-activity-item-desc,
    .section-activity-item-content p,
    .section-activity-more {
        font-size: var(--font-size-base);
    }
}

/* end section activity */

/* Section initiative */
.section-initiative {
    margin-top: calc(var(--section-overlap) * -1);
    overflow: hidden;
    position: relative;
    z-index: var(--z-initiative);
    background-color: var(--color-bg-light);
    border-bottom: 1px solid var(--color-border-light);
}

.section-initiative-header {
    margin-bottom: var(--spacing-2xl);
    padding-top: var(--section-header-padding-top);
}

.section-initiative-title {
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
    margin-bottom: 0;
    margin-left: auto;
    margin-right: auto;
}

.section-initiative-item {
    border-width: 0 0 4px 0;
    border-style: solid;
    border-color: transparent;
    border-radius: var(--radius-md);
    transition: border var(--transition-base), box-shadow var(--transition-base);
}

.section-initiative-item:hover {
    border-color: var(--color-link);
    box-shadow: 0 10px 20px 0 rgba(0, 0, 0, 0.15);
}

.section-initiative-item-visual {
    display: flex;
    flex-direction: column;
    text-align: center;
    height: 100%;
    padding: var(--spacing-sm) var(--spacing-sm) 23px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-blue);
    background: var(--color-bg-white);
    box-shadow: var(--shadow-card-sm);
}

.section-initiative-item-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 138px;
    margin: 0 auto var(--spacing-lg);
    padding: var(--spacing-md);
    flex-shrink: 0;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-subtle);
    background: var(--color-bg-logo);
}

.section-initiative-item-logo img {
    display: block;
    max-width: var(--logo-max-width);
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    object-position: center;
}

.section-initiative-item-head {
    margin-bottom: var(--spacing-md);
}

.section-initiative-item-title,
.section-initiative-item-title a {
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
    font-style: normal;
    text-transform: uppercase;
    margin-bottom: 6px;
    text-align: center;
    text-decoration: none;
}

.section-initiative-item-title:hover,
.section-initiative-item-title a:hover {
    cursor: pointer;
    color: var(--color-primary);
}

.section-initiative-item-desc {
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: var(--font-size-md);
    font-style: italic;
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    margin: 0;
}

.section-initiative-item-content {
    flex-grow: 1;
    padding: 0 23px;
    text-align: justify;
}

.section-initiative-item-content p {
    display: inline;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: var(--font-size-md);
    font-weight: 300;
    line-height: var(--line-height-tight);
    text-align: justify;
    margin: 0;
}

.section-initiative-more {
    font-size: var(--font-size-md);
}

@media (max-width: 991px) {
    .section-initiative {
        margin-top: -60px;
    }

    .section-initiative-header {
        padding-top: 50px;
        margin-bottom: var(--spacing-lg);
    }

    .section-initiative-title {
        font-size: 32px;
        text-align: center;
    }

    .section-initiative-item-logo {
        height: 120px;
    }

    .section-initiative-item-content {
        padding: 0 var(--spacing-md);
    }

    .section-initiative-item-logo img {
        max-width: 175px;
    }
}

@media (max-width: 575px) {
    .section-initiative {
        margin-top: -40px;
        padding-bottom: 15px !important;
    }

    .section-initiative-header {
        padding-top: 25px;
    }

    .section-initiative-title {
        font-size: 22px;
    }

    .section-initiative-item {
        padding: var(--spacing-sm) var(--spacing-sm) 18px;
    }

    .section-initiative-item-logo {
        height: 100px;
        margin-bottom: var(--spacing-md);
    }

    .section-initiative-item-title {
        font-size: var(--font-size-base);
    }

    .section-initiative-item-desc,
    .section-initiative-item-content p,
    .section-initiative-more {
        font-size: var(--font-size-base);
    }

    .section-initiative-item-content {
        padding: 0 var(--spacing-sm);
    }
}

/* end section initiative */

/* Section works */
.section-works {
    --works-visual-height: 320px;
    --works-cover-height: 280px;
    --works-cover-max-width: 220px;
    background-color: var(--color-bg-white);
}

.section-works-header {
    padding-bottom: var(--spacing-2xl);
}

.section-works-title {
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
    margin-bottom: 0;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    font-style: normal;
}

.section-works-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    min-height: 100%;
    padding-bottom: 56px;
}

.section-works-item:hover {
    cursor: pointer;
}

.section-works-item-visual {
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    width: 100%;
    height: var(--works-visual-height);
    margin-bottom: var(--spacing-xl);
}

.section-works-item-glow {
    position: absolute;
    left: 50%;
    bottom: 0;
    width: min(296px, 92%);
    height: auto;
    max-height: 100%;
    transform: translateX(-50%);
    z-index: 0;
    pointer-events: none;
    object-fit: contain;
    filter: blur(15px);
    transition: filter 0.3s ease-in-out;
}

.section-works-item:hover .section-works-item-glow {
    filter: blur(0px);
}

.section-works-item-cover {
    position: relative;
    z-index: 1;
    display: block;
    width: auto;
    height: var(--works-cover-height);
    max-width: var(--works-cover-max-width);
    object-fit: contain;
    object-position: center bottom;
}

.section-works-item-info {
    flex: 1 1 auto;
    width: 100%;
    max-width: 320px;
    margin-bottom: 0;
}

.section-works-item-title,
.section-works-item-subtitle {
    color: var(--color-text);
    font-family: var(--font-accent);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-tight);
    margin-bottom: 6px;
    text-align: center;
    font-style: normal;
}

.section-works-btn {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 140px;
    padding: 10px var(--spacing-xl);
    border-radius: var(--radius-btn-pill);
    border: 1px solid var(--color-primary);
    background: var(--color-bg-white);
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    text-decoration: none;
    transition: background-color var(--transition-base), color var(--transition-base);
}

.section-works-item:hover .section-works-btn,
.section-works-btn:hover {
    color: var(--color-white);
    background: var(--gradient-primary);
    transform: translateX(-50%);
    border-color: transparent;
}

@media (max-width: 991px) {
    .section-works {
        --works-visual-height: 280px;
        --works-cover-height: 240px;
        --works-cover-max-width: 200px;
    }

    .section-works-header {
        padding-bottom: var(--spacing-lg);
    }

    .section-works-title {
        font-size: 32px;
    }

    .section-works-item {
        padding-bottom: 52px;
        margin-bottom: var(--spacing-lg);
    }

    .section-works-item-visual {
        margin-bottom: var(--spacing-lg);
    }
}

@media (max-width: 575.98px) {
    .section-works-title {
        font-size: 22px;
    }

    .section-works-content>[class*="col-"].d-flex {
        height: auto;
    }

    .section-works-content>[class*="col-"]:not(:last-child) {
        margin-bottom: var(--spacing-2xl);
        padding-bottom: var(--spacing-2xl);
        border-bottom: 1px solid var(--color-border-subtle);
        border-bottom-style: dashed;
    }

    .section-works-item,
    .section-works-item.h-100 {
        min-height: 0;
        height: auto !important;
        padding-bottom: 0;
        margin-bottom: 0;
    }

    .section-works-item-visual {
        height: auto;
        min-height: 0;
        margin-bottom: var(--spacing-md);
    }

    .section-works-item-cover {
        height: auto;
        max-height: 200px;
        max-width: min(var(--works-cover-max-width), 72%);
    }

    .section-works-item-info {
        flex: 0 0 auto;
        max-width: 100%;
    }

    .section-works-item-title,
    .section-works-item-subtitle {
        font-size: var(--font-size-base);
    }

    .section-works-btn {
        position: static;
        transform: none;
        margin-top: var(--spacing-md);
        min-width: 120px;
        padding: 8px 20px;
        font-size: var(--font-size-sm);
    }

    .section-works-btn:hover {
        transform: none;
    }
}

/* end section works */

/* Section video */
.section-video {
    background-color: var(--color-bg-light);
    border-radius: var(--radius-section);
    overflow: hidden;
    position: relative;
    z-index: var(--z-video);
}

.section-video-header {
    margin-bottom: var(--spacing-2xl);
}

.section-video-title {
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
    margin-bottom: 0;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    font-style: normal;
}

.section-video-item {
    display: flex;
    flex-direction: column;
    min-height: 100%;
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.section-video-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.section-video-thumb {
    display: block;
    overflow: hidden;
    line-height: 0;
}

.section-video-thumb-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    aspect-ratio: 16 / 9;
}

.section-video-body {
    position: relative;
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    padding: 20px 20px 52px;
}

.section-video-meta {
    color: var(--color-text-muted);
    font-family: var(--font-body);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    margin-bottom: 10px;
    font-style: normal;
}

.section-video-item-title {
    color: var(--color-text);
    font-family: var(--font-accent);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
    margin-bottom: 0;
    flex: 1 1 auto;
    font-style: normal;
}

.section-video-more {
    position: absolute;
    left: 20px;
    bottom: 20px;
    color: var(--color-primary-bright);
    font-family: var(--font-heading);
    font-size: var(--font-size-md);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    line-height: var(--line-height-base);
}

@media (max-width: 991px) {
    .section-video {
        border-radius: 48px;
    }

    .section-video-header {
        margin-bottom: var(--spacing-lg);
    }

    .section-video-title {
        font-size: 32px;
    }

    .section-video-body {
        padding: 16px 16px 48px;
    }

    .section-video-item-title {
        font-size: var(--font-size-lg);
    }
}

@media (max-width: 575px) {
    .section-video {
        padding: 30px 15px !important;
    }

    .section-video .container {
        padding: 2rem 0px !important;
    }

    .section-video-title {
        font-size: 22px;
    }

    .section-video-body {
        padding: 14px 14px 44px;
    }

    .section-video-more {
        left: 14px;
        bottom: 14px;
        font-size: var(--font-size-xs);
    }

    .section-video-item-title {
        font-size: var(--font-size-base);
    }
}

/* end section video */

/* Section article */
.section-article {
    margin-top: calc(var(--section-overlap) * -1);
    overflow: hidden;
    position: relative;
    z-index: var(--z-article);
    background-color: var(--color-primary-dark);
}

.section-article-header {
    margin-bottom: var(--spacing-2xl);
    padding-top: var(--section-header-padding-top);
}

.section-article-title {
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
    margin-bottom: 0;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    font-style: normal;
}

.section-article-item {
    display: flex;
    flex-direction: column;
    min-height: 100%;
    padding: var(--spacing-xl) var(--spacing-xl) 0;
    border-radius: var(--radius-lg);
    background: var(--color-bg-white);
}

.section-article-item-body {
    flex: 1 1 auto;
    margin-bottom: 20px;
}

.section-article-item-title,
.section-article-item-title a {
    color: var(--color-text);
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-base);
    text-transform: uppercase;
    margin-bottom: 12px;
    font-style: normal;
    text-decoration: none;
}

.section-article-item-title:hover,
.section-article-item-title a:hover {
    cursor: pointer;
    color: var(--color-primary);
}

.section-article-excerpt,
.section-article-excerpt p {
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    font-weight: 300;
    line-height: var(--line-height-base);
    margin-bottom: 0;
    font-style: normal;
}

.section-article-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-top: auto;
    padding: var(--spacing-md) 0 var(--spacing-lg);
    border-top: 1px solid var(--color-border-divider);
}

.section-article-source {
    color: var(--color-text-secondary);
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    font-weight: 300;
    line-height: var(--line-height-base);
    font-style: normal;
    text-decoration: none;
}

.section-article-more {
    font-size: var(--font-size-icon);
}

.section-article-item:hover .link-more__arrow {
    transform: translateX(var(--link-more-arrow-shift));
}

.section-article-action {
    margin-top: var(--spacing-2xl);
}

.section-article-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 180px;
    padding: 12px 40px;
    border: none;
    border-radius: var(--radius-btn);
    background: var(--gradient-primary);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-base);
    text-decoration: none;
    font-style: normal;
    transition: background var(--transition-base);
}

.section-article-btn:hover {
    color: var(--color-white);
    background: var(--gradient-primary-reverse);
}

@media (max-width: 991px) {
    .section-article {
        margin-top: -60px;
    }

    .section-article-header {
        padding-top: 50px;
        margin-bottom: var(--spacing-lg);
    }

    .section-article-title {
        font-size: 32px;
    }

    .section-article-item {
        padding: var(--spacing-lg) var(--spacing-lg) 0;
    }

    .section-article-item-title {
        font-size: var(--font-size-lg);
    }

    .section-article-action {
        margin-top: var(--spacing-lg);
    }
}

@media (max-width: 575px) {
    .section-article {
        margin-top: -40px;
        padding-bottom: 0 !important;
    }

    .section-article-header {
        padding-top: 25px;
    }

    .section-article-title {
        font-size: 22px;
    }

    .section-article-item {
        padding: var(--spacing-md) var(--spacing-md) 0;
    }

    .section-article-item-title {
        font-size: var(--font-size-base);
    }

    .section-article-excerpt {
        font-size: var(--font-size-xs);
    }

    .section-article-footer {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }

    .section-article-more {
        font-size: var(--font-size-lg);
    }

    .section-article-btn {
        min-width: 160px;
        padding: 10px 28px;
        font-size: var(--font-size-sm);
    }
}

/* end section article */

/* Trang danh sách bài viết */
.page-article-list-main {
    background-color: var(--color-bg-light);
    padding: 56px 0 72px;
}

.article-list-title {
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
    margin-bottom: var(--spacing-2xl);
}

.article-list-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.article-card {
    padding: 32px 36px 20px;
    border-radius: var(--radius-lg);
    background: var(--color-bg-white);
    box-shadow: var(--shadow-card);
}

.article-card__title {
    margin-bottom: 14px;
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
    text-transform: uppercase;
}

.article-card__title a {
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-base);
}

.article-card__title a:hover {
    color: var(--color-primary);
}

.article-card__excerpt,
.article-card__excerpt p {
    margin-bottom: 22px;
    color: var(--color-text-muted);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
}

.article-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding-top: 18px;
    border-top: 1px solid var(--color-border-divider);
}

.article-card__footer a {
    text-decoration: none;
}

.article-card__source {
    color: var(--color-text-secondary);
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    text-decoration: none;
}

.article-card__read-more {
    flex-shrink: 0;
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    font-style: italic;
    font-weight: var(--font-weight-normal);
    text-transform: none;
    letter-spacing: normal;
}

.article-card__read-more.link-more {
    gap: var(--spacing-xs);
}

.article-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}

.article-pagination__page,
.article-pagination__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--color-primary);
    border-radius: 50%;
    background: var(--color-bg-white);
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: 1;
    text-decoration: none;
    transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

.article-pagination__page.is-active,
.article-pagination__page:hover,
.article-pagination__btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.article-pagination__btn {
    font-size: 22px;
    font-weight: var(--font-weight-normal);
}

@media (max-width: 991px) {
    .page-article-list-main {
        padding: 40px 0 56px;
    }

    .article-list-title {
        font-size: 32px;
        margin-bottom: var(--spacing-lg);
    }

    .article-card {
        padding: 24px 28px 18px;
    }
}

@media (max-width: 575px) {
    .page-article-list-main {
        padding: 32px 0 48px;
    }

    .article-list-title {
        font-size: 22px;
        margin-bottom: var(--spacing-md);
    }

    .article-list-items {
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }

    .article-card {
        padding: 20px var(--spacing-md) 16px;
    }

    .article-card__title {
        font-size: var(--font-size-base);
        margin-bottom: 10px;
    }

    .article-card__excerpt {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-md);
    }

    .article-card__footer {
        flex-wrap: wrap;
        padding-top: 14px;
    }

    .article-pagination {
        gap: 8px;
    }

    .article-pagination__page,
    .article-pagination__btn {
        min-width: 36px;
        height: 36px;
        font-size: var(--font-size-sm);
    }

    .article-pagination__btn {
        font-size: 18px;
    }
}

/* end trang danh sách bài viết */

/* Trang chi tiết bài viết */
.page-article-detail-main {
    background-color: var(--color-bg-light);
    padding: 56px 0 72px;
}

.article-detail__title {
    color: var(--color-text);
    font-family: var(--font-heading);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border-light);
    padding-bottom: var(--spacing-md);
}

.article-detail__lead,
.article-detail__lead p {
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
}

.article-detail__source {
    color: #000;
    font-style: italic;
    font-family: var(--font-montserrat);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    margin-bottom: var(--spacing-lg);
}

.article-detail__source a {
    color: var(--color-primary);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    font-style: italic;
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    text-decoration: none;
}

.article-detail__source a:hover {
    color: var(--color-primary-bright);
    text-decoration: underline;
}

.article-detail__figure {
    margin: 0 0 var(--spacing-lg);
    margin-top: var(--spacing-lg);
    overflow: hidden;
}

.article-detail__figure img {
    display: block;
    width: 100%;
    height: auto;
    max-width: 100%;
    object-fit: cover;
}

.article-detail__figure-caption {
    padding: 14px 18px;
    background: rgba(31, 52, 70, 0.75);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.04em;
    text-align: left;
}

.article-detail__content {
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-lg);
}

.article-detail__content p {
    margin-bottom: var(--spacing-sm);
}

.article-detail__content p:last-child {
    margin-bottom: 0;
}

.article-detail__content table {
    width: 100%;
}

.article-detail__content blockquote {
    all: revert;
    border-left: 3px solid #ccc;
    margin-bottom: 20px;
    background: #eee;
    padding: 10px 20px 10px 15px;
}

.article-detail__quote {
    position: relative;
    margin: var(--spacing-2xl) 0;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.article-detail__quote-media {
    position: relative;
    min-height: 320px;
}

.article-detail__quote-img {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 320px;
    object-fit: cover;
}

.article-detail__quote-overlay {
    position: absolute;
    inset: 0;
    background: var(--color-quote-overlay);
}

.article-detail__quote-content {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    margin: 0;
    padding: 32px 36px;
    color: var(--color-white);
}

.article-detail__quote-mark {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-family: Georgia, serif;
    font-size: 56px;
    font-weight: var(--font-weight-bold);
    line-height: 1;
    opacity: 0.9;
}

.article-detail__quote-text {
    margin-bottom: var(--spacing-md);
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    line-height: 1.6;
}

.article-detail__quote-author {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    font-style: normal;
    line-height: var(--line-height-base);
}

.article-detail__quote-author strong {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.article-detail__summary {
    margin-top: var(--spacing-2xl);
    padding: 28px 32px;
    border: 1px solid var(--color-border-blue);
    border-radius: var(--radius-md);
    background: var(--color-bg-summary);
}

.article-detail__summary p {
    color: var(--color-text);
    text-align: justify;
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    font-style: normal;
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    margin-bottom: var(--spacing-md);
}

.article-detail__summary p:last-child {
    margin-bottom: 0;
}

@media (max-width: 991px) {
    .page-article-detail-main {
        padding: 40px 0 56px;
    }

    .article-detail__title {
        font-size: 32px;
    }

    .article-detail__quote-media,
    .article-detail__quote-img {
        min-height: 260px;
    }

    .article-detail__quote-content {
        padding: 24px 28px;
    }

    .article-detail__quote-mark {
        font-size: 44px;
    }

    .article-detail__summary {
        padding: 22px 24px;
    }
}

@media (max-width: 575px) {
    .page-article-detail-main {
        padding: 32px 0 48px;
    }

    .article-detail__title {
        font-size: 22px;
        padding-bottom: 12px;
    }

    .article-detail__lead {
        font-size: var(--font-size-base);
    }

    .article-detail__content {
        font-size: var(--font-size-base);
    }

    .article-detail__quote {
        margin: var(--spacing-lg) 0;
    }

    .article-detail__quote-media,
    .article-detail__quote-img {
        min-height: 220px;
    }

    .article-detail__quote-content {
        padding: 18px 20px;
    }

    .article-detail__quote-mark {
        font-size: 36px;
    }

    .article-detail__quote-text {
        font-size: var(--font-size-base);
    }

    .article-detail__summary {
        margin-top: var(--spacing-lg);
        padding: 18px 20px;
    }

    .article-detail__summary p {
        font-size: var(--font-size-sm);
    }
}

/* end trang chi tiết bài viết */

/* Sidebar bài viết */
.article-sidebar {
    position: sticky;
    top: var(--article-sidebar-sticky-top);
    display: flex;
    flex-direction: column;
    max-height: var(--article-sidebar-max-height);
    padding: 25px 22px;
    border-radius: var(--radius-lg);
    background: var(--color-bg-white);
    box-shadow: var(--shadow-card);
}

.article-sidebar__title {
    flex-shrink: 0;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border-divider);
    color: var(--color-text);
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
}

.article-sidebar__list {
    flex: 1 1 auto;
    min-height: 0;
    margin: 0;
    padding: 0 6px 0 0;
    overflow-x: hidden;
    overflow-y: auto;
    list-style: none;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border-light) transparent;
}

.article-sidebar__list::-webkit-scrollbar {
    width: 6px;
}

.article-sidebar__list::-webkit-scrollbar-track {
    background: transparent;
}

.article-sidebar__list::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background-color: var(--color-border-light);
}

.article-sidebar__link {
    display: block;
    padding: 7px 0;
    color: var(--color-text);
    font-family: var(--font-montserrat);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    text-decoration: none;
    transition: color var(--transition-base);
    padding-left: 15px;
}

.article-sidebar__link::before {
    content: "•";
    display: inline-block;
    width: 1em;
    margin-left: -1em;
    font-size: var(--font-size-sm);
    color: var(--color-text);
}

.article-sidebar__link.active,
.article-sidebar__link:active,
.article-sidebar__link:hover {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 5px;
}

@media (max-width: 991px) {
    .article-sidebar {
        position: static;
        max-height: none;
        margin-top: var(--spacing-lg);
    }

    .article-sidebar__list {
        max-height: min(420px, 55vh);
    }
}

@media (max-width: 575px) {
    .article-sidebar {
        padding: 20px 18px;
    }

    .article-sidebar__title {
        font-size: var(--font-size-base);
    }

    .article-sidebar__link {
        font-size: var(--font-size-xs);
        padding: 6px 0;
    }

    .article-sidebar__list {
        max-height: min(360px, 50vh);
    }
}

/* end sidebar bài viết */

/* Trang lỗi 404 */
.page-error-main {
    background-color: var(--color-bg-light);
    padding: 56px 0 72px;
    min-height: 50vh;
    display: flex;
    align-items: center;
}

.error-panel {
    max-width: 720px;
    margin: 0 auto;
    padding: 48px 40px;
    border-radius: var(--radius-lg);
    background: var(--color-bg-white);
    box-shadow: var(--shadow-card);
    text-align: center;
}

.error-panel__title {
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
    text-transform: uppercase;
}

.error-panel__message {
    margin-bottom: var(--spacing-2xl);
    color: var(--color-text-muted);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-lg);
}

.error-panel__actions {
    display: flex;
    justify-content: center;
}

.error-panel__link {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
}

@media (max-width: 575px) {
    .page-error-main {
        padding: 40px 0 56px;
    }

    .error-panel {
        padding: 32px 24px;
    }

    .error-panel__title {
        font-size: var(--font-size-xl);
    }
}

/* end trang lỗi 404 */