@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700&display=swap');

:root {
    --color-primary: #8B0000;
    --color-secondary: #C4960A;
    --color-navy: #1A2744;
    --color-military: #2D5016;
    --color-bg: #F8F4EC;
    --color-text: #1A1A1A;
    --color-text-muted: #5C5C5C;
    --surface-white: #FFFFFF;
    --radius-md: 12px;
    --shadow-soft: 0 4px 20px rgba(28, 38, 24, 0.05), 0 1px 3px rgba(0, 0, 0, 0.02);
    --shadow-soft-hover: 0 10px 24px rgba(26, 39, 68, 0.12), 0 2px 6px rgba(0, 0, 0, 0.03);
}

html,
body {
    font-family: 'Be Vietnam Pro', sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 15px;
    line-height: 1.7;
}

small:not(.badge),
.small,
.meta,
.text-muted {
    font-size: 13px !important;
    color: var(--color-text-muted) !important;
}

.badge.bg-danger,
.badge.text-bg-danger,
.btn.btn-danger {
    color: #ffffff !important;
}

a {
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-secondary) !important;
}

*:focus-visible {
    outline: 2px solid var(--color-secondary);
    outline-offset: 2px;
}

.top-ribbon {
    background: var(--color-primary) !important;
    min-height: 32px;
    border-top: 0;
    border-bottom: 0;
}

.ribbon-inner {
    min-height: 32px;
    padding: 0 12px;
}

.ribbon-time {
    display: none;
}

.ribbon-quick-links {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.ribbon-quick-links a {
    color: #fff4cf;
    text-decoration: none;
    white-space: nowrap;
}

.ribbon-quick-links .sep {
    color: rgba(255, 244, 207, 0.6);
}

.main-nav {
    background: var(--color-primary) !important;
}

@media (min-width: 992px) {
    .site-header {
        background-color: #ece4cb;
        background-image:
            linear-gradient(90deg,
                rgba(250, 245, 226, 0.96) 0%,
                rgba(243, 233, 204, 0.9) 34%,
                rgba(225, 206, 159, 0.74) 56%,
                rgba(37, 58, 97, 0.66) 74%,
                rgba(10, 25, 48, 0.88) 100%),
            linear-gradient(90deg,
                rgba(238, 224, 179, 0.92) 0%,
                rgba(238, 224, 179, 0.86) 30%,
                rgba(238, 224, 179, 0.62) 52%,
                rgba(238, 224, 179, 0.28) 70%,
                rgba(238, 224, 179, 0.06) 86%,
                rgba(238, 224, 179, 0) 100%),
            radial-gradient(circle at 34% 42%,
                rgba(255, 240, 189, 0.24) 0%,
                rgba(255, 240, 189, 0.08) 36%,
                rgba(255, 240, 189, 0) 62%),
            url('../images/chuyen-doi-so-trong-giao-duc.webp') !important;
        background-size: 100% 100%, 100% 100%, 100% 100%, cover;
        background-position: left top, left top, left top, right center;
        background-repeat: no-repeat, no-repeat, no-repeat, no-repeat;
    }

    body.dark-mode .site-header {
        background-color: #1b2337;
        background-image:
            linear-gradient(90deg,
                rgba(14, 25, 41, 0.86) 0%,
                rgba(20, 37, 60, 0.78) 32%,
                rgba(45, 61, 92, 0.72) 60%,
                rgba(16, 30, 55, 0.84) 100%),
            linear-gradient(90deg,
                rgba(8, 18, 31, 0.96) 0%,
                rgba(8, 18, 31, 0.92) 34%,
                rgba(8, 18, 31, 0.72) 56%,
                rgba(8, 18, 31, 0.34) 74%,
                rgba(8, 18, 31, 0.08) 88%,
                rgba(8, 18, 31, 0) 100%),
            radial-gradient(circle at 34% 42%,
                rgba(242, 199, 143, 0.18) 0%,
                rgba(242, 199, 143, 0.05) 35%,
                rgba(242, 199, 143, 0) 60%),
            url('../images/chuyen-doi-so-trong-giao-duc.webp') !important;
        background-size: 100% 100%, 100% 100%, 100% 100%, cover;
        background-position: left top, left top, left top, right center;
        background-repeat: no-repeat, no-repeat, no-repeat, no-repeat;
        border-bottom-color: #2f4150 !important;
    }

    .site-header::before,
    .site-header::after {
        opacity: 0.18;
        display: block;
    }

    body.dark-mode .site-header::before,
    body.dark-mode .site-header::after {
        opacity: 0.14;
    }

    .site-header .header-contact,
    .site-header .contact-line {
        color: #fff6dd !important;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.42);
    }

    body.dark-mode .site-header .header-contact,
    body.dark-mode .site-header .contact-line {
        color: #f8f0dd !important;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
    }

    .site-header .header-contact i,
    .site-header .contact-line i {
        color: #ffd36e !important;
    }

    body.dark-mode .site-header .header-contact i,
    body.dark-mode .site-header .contact-line i {
        color: #ffc970 !important;
    }
}

.hero-btn {
    background: var(--color-secondary) !important;
    border-color: var(--color-secondary) !important;
    color: var(--color-primary) !important;
}

.hero-btn:hover {
    background: #dbac1a !important;
    border-color: #dbac1a !important;
    color: #5f0000 !important;
}

.section-title,
.home-category-heading {
    border-bottom: 2px solid var(--color-secondary) !important;
    padding-left: 10px;
    border-left: 3px solid var(--color-secondary);
}

.section-title h2,
.home-category-heading h3,
.home-category-heading h2 {
    color: var(--color-primary) !important;
}

.home-page,
.news-list-page {
    background: var(--color-bg);
}

.card,
.home-featured-card,
.home-category-featured-card,
.home-mini-item,
.home-category-mini,
.hero-carousel-container,
.gallery-item,
.news-article-card,
.sidebar-latest-card {
    background: var(--surface-white) !important;
    border: 0 !important;
    border-radius: var(--radius-md) !important;
    box-shadow: var(--shadow-soft) !important;
}

.card:hover,
.home-featured-card:hover,
.home-category-featured-card:hover,
.home-mini-item:hover,
.home-category-mini:hover,
.news-article-card:hover {
    box-shadow: var(--shadow-soft-hover) !important;
}

.header-contact,
.contact-line {
    color: var(--color-text) !important;
    font-size: 14px !important;
    font-weight: 500;
}

body.dark-mode .header-contact,
body.dark-mode .contact-line {
    color: #d6e2f0 !important;
}

.header-contact i,
.contact-line i {
    color: var(--color-primary) !important;
}

body.dark-mode .header-contact i,
body.dark-mode .contact-line i {
    color: #ffb86b !important;
}

.home-news-title,
.home-news-title-small,
.news-card-title,
.home-featured-card h5,
.home-category-featured-card h6,
.home-category-mini a,
.home-mini-item a {
    font-size: 15px !important;
    line-height: 1.4 !important;
    font-weight: 600 !important;
}

.featured-news-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.featured-news-thumb {
    display: block;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.featured-news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.25s ease;
}

.featured-news-card:hover .featured-news-thumb img {
    transform: scale(1.03);
}

.featured-news-body {
    padding: 14px 14px 12px;
}

.featured-news-badge {
    display: inline-flex;
    align-items: center;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(196, 150, 10, 0.14);
    border: 1px solid rgba(196, 150, 10, 0.35);
    border-radius: 999px;
    padding: 3px 10px;
    margin-bottom: 8px;
}

.featured-news-title,
.featured-news-title a {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--color-text);
}

.featured-news-title {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.8em;
}

.featured-news-meta {
    display: flex;
    align-items: center;
    gap: 10px;
}

.featured-news-date {
    font-size: 13px;
    color: var(--color-text-muted);
    font-weight: 500;
}

.featured-news-more {
    display: grid;
    gap: 8px;
}

.featured-news-more-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
}

.featured-news-more-link i {
    color: var(--color-primary);
    margin-right: 6px;
}

body,
p,
li,
td,
th,
.form-control,
.form-select {
    font-size: 15px;
    line-height: 1.7;
}

.back-to-top {
    background: var(--color-primary) !important;
    color: #ffd54a !important;
}

.back-to-top i {
    color: #ffd54a !important;
}

.back-to-top:hover {
    background: #6e0000 !important;
    color: #ffe27a !important;
}

.back-to-top:hover i {
    color: #ffe27a !important;
}

/* Mobile CTA bar */
.mobile-cta-bar {
    display: none;
}

/* Mobile admission card placed after hero slider */
.mobile-admission-cta-card {
    display: none;
}

/* Thumbnail fallback for missing images */
.thumb-fallback,
.article-thumb-fallback {
    background: linear-gradient(135deg, #1A2744 0%, #2D5016 100%) !important;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-weight: 700;
    font-size: 13px;
    padding: 10px;
    border-radius: 10px;
}

.thumb-fallback::before,
.article-thumb-fallback::before {
    content: attr(data-category);
    white-space: normal;
    line-height: 1.4;
    letter-spacing: 0.02em;
}

/* Desktop featured cards: 3 equal cards */
@media (min-width: 992px) {
    .home-featured-news .featured-grid > .col-md-4 {
        display: flex;
    }
}

/* Tablet landscape / 1024 fix */
@media (min-width: 992px) and (max-width: 1199.98px) {
    html,
    body {
        overflow-x: hidden;
    }

    .site-header,
    .main-nav {
        overflow-x: clip;
    }

    .main-nav .container {
        max-width: 100%;
        padding-left: 8px;
        padding-right: 8px;
    }

    .main-nav .navbar-collapse {
        min-width: 0;
    }

    .header-main {
        min-height: 150px;
        gap: 0.75rem;
    }

    .brand-logo {
        width: 70px;
        flex: 0 0 70px;
    }

    .site-title {
        font-size: 1.95rem;
        letter-spacing: 0.02em;
        white-space: normal;
        line-height: 1.16;
    }

    .site-subtitle {
        font-size: 0.95rem;
        letter-spacing: 0.12em;
    }

    .header-contact,
    .contact-line {
        font-size: 13px !important;
    }

    .mode-btn {
        padding: 0.12rem 0.8rem;
        font-size: 13px;
    }

    .ribbon-quick-links {
        font-size: 12px;
        gap: 8px;
    }

    .main-nav .navbar-nav {
        gap: 0;
        flex-wrap: nowrap;
        min-width: 0;
    }

    .main-nav .navbar-nav .nav-link {
        font-size: 0.92rem;
        padding: 0.58rem 0.62rem;
        white-space: nowrap;
    }

    .menu-caret {
        margin-left: 0.2rem;
        font-size: 0.72rem;
    }

    .main-nav .nav-search {
        display: none !important;
    }
}

@media (max-width: 767.98px) {
    .featured-news-body {
        padding: 12px;
    }
}

/* Mobile layout priority */
@media (max-width: 767.98px) {
    html,
    body {
        overflow-x: hidden;
    }

    .site-header .container,
    .home-page .container,
    .news-list-page .container,
    .site-footer-modern .container {
        padding-left: 12px !important;
        padding-right: 12px !important;
    }

    .mobile-cta-bar {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1200;
        height: 44px;
        background: var(--color-navy);
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
        gap: 8px;
        padding: 6px 10px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.18);
        max-width: 100vw;
        overflow: hidden;
    }

    .mobile-cta-bar__item {
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 8px;
        text-decoration: none;
        font-size: 13px;
        font-weight: 700;
        white-space: nowrap;
        min-width: 0;
        min-height: 32px;
        overflow: hidden;
        text-overflow: ellipsis;
        padding: 0 8px;
    }

    .mobile-cta-bar__item--hotline {
        background: rgba(255, 255, 255, 0.16);
        color: #ffffff;
        font-size: 12px;
        padding: 0 6px;
        letter-spacing: -0.01em;
    }

    .mobile-cta-bar__item--admission {
        background: var(--color-primary);
        color: #ffffff;
    }

    body {
        padding-top: 44px;
    }

    .main-nav.sticky-top {
        top: 44px;
    }

    .top-ribbon {
        margin-top: 0;
    }

    .ribbon-quick-links {
        display: none;
    }

    /* Sidebar admission becomes one highlighted card after slider */
    .sidebar-admission-banner {
        display: none !important;
    }

    .mobile-admission-cta-card {
        display: block;
        margin: 12px 0 20px;
        background: var(--color-primary);
        color: #fff;
        border-radius: 12px;
        padding: 16px;
        box-shadow: var(--shadow-soft);
    }

    .mobile-admission-cta-card h3 {
        font-size: 16px;
        font-weight: 700;
        margin-bottom: 8px;
        color: #fff;
    }

    .mobile-admission-cta-card p {
        font-size: 14px;
        margin: 0 0 10px;
        opacity: 0.95;
    }

    .mobile-admission-cta-card .mobile-admission-btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: #fff;
        color: var(--color-primary);
        border-radius: 999px;
        min-height: 44px;
        padding: 8px 14px;
        font-size: 13px;
        font-weight: 700;
        text-decoration: none;
    }

    .mobile-menu__item,
    .mobile-menu__submenu-item,
    .footer-mobile-accordion .accordion-button,
    .back-to-top {
        min-height: 44px;
    }

    /* Footer mobile compact + accordion */
    .site-footer-modern .footer-grid {
        display: none;
    }

    .footer-mobile-compact {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 8px;
        padding: 14px 0 6px;
    }

    .footer-mobile-brand {
        text-align: left;
        margin-bottom: 0;
        flex: 0 0 auto;
    }

    .footer-mobile-brand img {
        width: 52px;
        height: 52px;
        object-fit: contain;
    }

    .footer-mobile-hotline {
        text-align: center;
        margin-bottom: 0;
        flex: 1 1 0;
        min-width: 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 8px;
        flex-wrap: nowrap;
    }

    .footer-mobile-hotline a {
        color: #fff;
        font-weight: 700;
        text-decoration: none;
        white-space: nowrap;
        font-size: 1rem;
        line-height: 1;
    }

    .footer-mobile-socials {
        display: flex;
        justify-content: flex-end;
        gap: 8px;
        margin-bottom: 0;
        flex: 0 0 auto;
    }

    .footer-mobile-socials-inline {
        justify-content: center;
        flex: 0 0 auto;
    }

    .footer-mobile-socials a {
        width: 32px;
        height: 32px;
        border-radius: 50%;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, 0.18);
        color: #fff;
        text-decoration: none;
    }

    @media (max-width: 360px) {
        .footer-mobile-brand img {
            width: 46px;
            height: 46px;
        }

        .footer-mobile-hotline a {
            font-size: 0.95rem;
        }

        .footer-mobile-socials a {
            width: 30px;
            height: 30px;
        }
    }

    .footer-mobile-accordion {
        width: 100%;
        flex: 0 0 100%;
        margin-top: 8px;
    }

    .footer-mobile-accordion .accordion-item {
        border: 0;
        border-top: 1px solid rgba(255, 255, 255, 0.2);
        background: transparent;
    }

    .footer-mobile-accordion .accordion-button {
        background: transparent;
        color: #ffffff;
        font-size: 14px;
        font-weight: 600;
        box-shadow: none;
        padding-left: 0;
        padding-right: 0;
    }

    .footer-mobile-accordion .accordion-button:not(.collapsed) {
        color: #ffe39b;
    }

    .footer-mobile-accordion .accordion-button::after {
        filter: invert(1);
    }

    .footer-mobile-accordion .accordion-body {
        color: #e2ebff;
        font-size: 14px;
        padding: 0 0 12px;
    }

    .footer-mobile-accordion #footerQuickCollapse .accordion-body {
        display: grid;
        gap: 8px;
    }

    .footer-mobile-accordion #footerQuickCollapse .accordion-body .mb-1 {
        margin-bottom: 0 !important;
    }

    .footer-mobile-accordion #footerQuickCollapse .accordion-body a {
        display: flex;
        align-items: center;
        min-height: 44px;
        padding: 10px 12px;
        border-radius: 10px;
        border: 1px solid rgba(255, 227, 155, 0.35);
        background: rgba(255, 255, 255, 0.08);
        color: #ffe7a8 !important;
        text-decoration: none;
        font-weight: 600;
        line-height: 1.25;
        transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    }

    .footer-mobile-accordion #footerQuickCollapse .accordion-body a:hover,
    .footer-mobile-accordion #footerQuickCollapse .accordion-body a:focus-visible {
        background: rgba(255, 227, 155, 0.18);
        border-color: rgba(255, 227, 155, 0.62);
        color: #fff2c9 !important;
    }

    .footer-mobile-accordion #footerStatsCollapse .accordion-body {
        display: grid;
        gap: 10px;
        padding-top: 6px;
    }

    .footer-mobile-accordion #footerStatsCollapse .footer-stat-row {
        margin: 0 !important;
        min-height: 50px;
        padding: 10px 12px;
        border-radius: 12px;
    }

    .footer-mobile-accordion #footerStatsCollapse .footer-stat-row strong {
        font-size: 44px;
        line-height: 0.9;
    }

    .footer-mobile-accordion #footerStatsCollapse .footer-qr-box {
        margin-top: 2px;
    }
}

@media (max-width: 360px) {
    .mobile-cta-bar {
        gap: 6px;
        padding: 6px 8px;
    }

    .site-header .container,
    .home-page .container,
    .news-list-page .container,
    .site-footer-modern .container {
        padding-left: 10px !important;
        padding-right: 10px !important;
    }

    .mobile-cta-bar__item {
        font-size: 12px;
        letter-spacing: 0;
        padding: 0 6px;
    }

    .mobile-cta-bar__item--hotline {
        font-size: 10.5px;
        padding: 0 4px;
        letter-spacing: -0.02em;
    }

    .header-main {
        gap: 0.5rem;
    }

    .brand-logo {
        width: 40px;
        flex: 0 0 40px;
    }

    .site-title {
        font-size: 0.92rem;
        line-height: 1.2;
    }
}

@media (max-width: 991.98px) {
    .site-header {
        background: var(--color-primary) !important;
        border-bottom-color: #6f0000 !important;
        box-shadow: 0 4px 14px rgba(78, 0, 0, 0.22) !important;
    }

    .site-title {
        color: #ffffff !important;
    }

    .mobile-menu-trigger {
        color: #ffffff !important;
    }

    .mobile-menu-trigger:hover,
    .mobile-menu-trigger:focus-visible {
        background: rgba(255, 255, 255, 0.14) !important;
    }

    /* Keep the close button visible when the mobile drawer is open */
    body.nav-drawer-open .mobile-cta-bar {
        display: none !important;
    }

    body.nav-drawer-open .main-nav .navbar-collapse {
        top: 0 !important;
        height: 100vh !important;
        z-index: 1300 !important;
    }

    body.nav-drawer-open .mobile-nav-backdrop {
        z-index: 1290 !important;
    }
}

@media (min-width: 768px) {
    .footer-mobile-compact {
        display: none;
    }
}