/*
Theme Name: HaoMK Theme
Theme URI: https://haomkt.com
Author: Hao MK
Author URI: https://haomkt.com
Description: Custom theme siêu tốc độ, chuẩn SEO và Mobile-First cho HaoMK Blog.
Version: 1.0.0
Text Domain: haomkt
*/

/* ==========================================================================
   NHÚNG FONT CHỮ CHUẨN TIẾNG VIỆT (INTER)
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* Ép toàn bộ website sử dụng chung một font chữ để đồng bộ */
body, h1, h2, h3, h4, h5, h6, p, a, span, div, li, strong, b, button, input, textarea {
    font-family: 'Inter', system-ui, -apple-system, sans-serif !important;
}

/* ==========================================================================
   1. CSS VARIABLES (Biến toàn cục)
   ========================================================================== */
:root {
  --color-primary: #ff6600;
  --color-primary-hover: #e65c00;
  --color-text-main: #1f2937;
  --color-text-muted: #6b7280;
  --color-bg-white: #ffffff;
  --color-bg-light: #fafafa;
  --color-border: #e5e7eb;
  --container-width: 1200px;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 40px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --transition-speed: 0.3s;
}

/* ==========================================================================
   2. CSS RESET & CỐT LÕI (Đã fix lỗi tràn khung Mobile)
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  max-width: 100vw;
  overflow-x: hidden; /* Khóa chặt chiều ngang, cấm tràn viền */
}

html {
  font-size: 100%; 
  scroll-behavior: smooth; 
}

body {
  color: var(--color-text-main);
  background: linear-gradient(135deg, #fff 60%, #fff7ed 100%) !important;
  background-attachment: fixed !important;
  line-height: 1.6; 
  -webkit-font-smoothing: antialiased; 
}

img, video, iframe, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-speed) ease, transform var(--transition-speed) ease;
}

ul, ol {
  list-style: none;
}

/* Đảm bảo các khối chức năng giữ được nền trắng nổi bật */
.site-header, 
.site-footer, 
.article-card, 
.features-row,
.categories-bar__wrapper {
    background-color: var(--color-bg-white);
}

/* ==========================================================================
   3. BASE LAYOUT & CONTAINER
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-md); 
  padding-right: var(--spacing-md);
}

.section-padding { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }
.text-center { text-align: center; }
.title-section {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  text-transform: uppercase;
}

/* ==========================================================================
   4. ELEMENTS & BUTTONS
   ========================================================================== */
.text-orange { color: var(--color-primary); }
.btn {
  display: inline-block;
  padding: 6px 24px;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
}
.btn--primary { background-color: var(--color-primary); color: var(--color-bg-white); font-size: 14px; }
.btn--primary:hover { background-color: var(--color-primary-hover); }
.btn--secondary {
  background-color: transparent;
  color: var(--color-text-main);
  border: 1px solid var(--color-border);
}

/* ==========================================================================
   5. HEADER & DROPDOWN MENU
   ========================================================================== */
.site-header {
    background: #fff;
    padding: 15px 0;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}
.site-header__wrapper { display: flex; justify-content: space-between; align-items: center; }
.site-header__logo a { font-size: 24px; font-weight: 900; letter-spacing: -1px; }

/* FIX LỖI VỠ MENU TRÊN HEADER */
.site-header li a, .site-header .menu-item a {
    white-space: nowrap !important; 
    font-size: 15px;
}
.site-header ul.menu {
    display: flex;
    align-items: center;
    gap: 1.5vw;
    margin: 0;
    padding: 0;
}

.main-menu a { font-weight: 600; font-size: 15px; color: var(--color-text-main); }
.main-menu a:hover { color: var(--color-primary); }

.main-menu .menu-item-has-children > a {
    display: inline-flex;
    align-items: center;
}
.main-menu .menu-item-has-children > a::after {
    content: "";
    display: inline-block;
    margin-left: 6px;
    vertical-align: middle;
    border-top: 5px solid currentColor;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    transition: transform var(--transition-speed) ease;
}

/* Dropdown Desktop */
@media (min-width: 1024px) {
    .main-menu li { position: relative; }
    .main-menu .sub-menu {
        position: absolute; top: 100%; left: 0;
        background-color: var(--color-bg-white);
        min-width: 220px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        border-radius: var(--radius-md);
        padding: 10px 0; opacity: 0; visibility: hidden;
        transform: translateY(15px); transition: all var(--transition-speed) ease;
        z-index: 200; border: 1px solid var(--color-border);
    }
    .main-menu li:hover > .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }
    .main-menu .menu-item-has-children:hover > a::after { transform: rotate(180deg); }
    .main-menu .sub-menu li { width: 100%; }
    .main-menu .sub-menu a { display: block; padding: 10px 20px; font-size: 14px; font-weight: 500; }
    .main-menu .sub-menu a:hover { background-color: var(--color-bg-light); color: var(--color-primary); padding-left: 25px; }
}

/* Dropdown Mobile */
@media (max-width: 1023px) {
    .main-menu .sub-menu {
        display: block; background-color: var(--color-bg-light);
        margin: 5px 20px 15px 20px; border-left: 2px solid var(--color-primary);
        border-radius: 0 var(--radius-md) var(--radius-md) 0;
    }
    .main-menu .sub-menu a { padding: 12px 15px; font-size: 14px; border-bottom: none; }
    .main-menu .menu-item-has-children > a::after { margin-left: auto; }
}

/* Cụm chức năng (Kính lúp + Nút) */
.header-actions, .site-header__actions {
    display: flex; align-items: center; gap: 15px; white-space: nowrap;
}
.search-toggle-btn { background: none; border: none; cursor: pointer; color: var(--color-text-main); display: flex; align-items: center; justify-content: center; transition: color var(--transition-speed) ease; }
.search-toggle-btn:hover { color: var(--color-primary); }

/* ==========================================================================
   6. TÌM KIẾM DROPDOWN
   ========================================================================== */
.search-dropdown-box {
    position: absolute; top: 150%; right: 0; width: 300px;
    background: #fff; border-radius: 8px; box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #eee; opacity: 0; visibility: hidden;
    transform: translateY(10px); transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    z-index: 999;
}
.search-dropdown-box.active { opacity: 1; visibility: visible; transform: translateY(0); }
#haomk-search-toggle:hover { color: var(--color-primary) !important; }

/* ==========================================================================
   7. HERO SECTION
   ========================================================================== */
.hero-section { background: transparent !important; overflow: hidden; padding: 20px 0; }
.hero-section__subtitle { display: block; color: var(--color-primary); font-size: 14px; font-weight: 800; letter-spacing: 2px; margin-bottom: 10px; }
.hero-section__title { font-size: clamp(2rem, 8vw, 3.5rem); line-height: 1.1; margin-bottom: 20px; word-wrap: break-word; overflow-wrap: break-word; hyphens: auto; }
.hero-section__desc { color: var(--color-text-muted); font-size: 18px; max-width: 500px; margin-bottom: 35px; }
.hero-section__image-box { position: relative; }
.hero-section__image-box img { border-radius: 30px; z-index: 1; max-width: 100%; margin: 0 auto; }
.badge { position: absolute; background: #fff; padding: 15px 20px; border-radius: 15px; box-shadow: 0 10px 25px rgba(0,0,0,0.1); z-index: 2; animation: float 3s ease-in-out infinite; }
.badge--growth { top: 10%; left: -10%; }
.badge--traffic { bottom: 15%; right: -5%; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ==========================================================================
   8. SECTION HEADERS & CATEGORIES BAR
   ========================================================================== */
.section-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: var(--spacing-lg); }
.section-header .title-section { margin-bottom: 0; }
.view-all-link { font-size: 15px; font-weight: 600; color: var(--color-primary); display: inline-flex; align-items: center; }
.view-all-link:hover { color: var(--color-primary-hover); transform: translateX(5px); }

.categories-bar-section { margin-bottom: 50px; margin-top: 10px; }
.categories-bar__wrapper { background-color: var(--color-bg-white); border-radius: var(--radius-lg); box-shadow: 0 10px 40px rgba(0, 0, 0, 0.04); padding: 20px 35px; display: flex; align-items: center; justify-content: space-between; gap: 30px; border: 1px solid #f3f4f6; }
.categories-bar__list { display: flex; align-items: center; gap: 45px; overflow-x: auto; scrollbar-width: none; flex-grow: 1; }
.categories-bar__list::-webkit-scrollbar { display: none; }
.categories-bar__item { display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; flex-shrink: 0; transition: all var(--transition-speed) ease; }
.categories-bar__icon { width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; }
.categories-bar__icon img { width: 100% !important; height: 100% !important; object-fit: contain !important; }
.categories-bar__title { font-size: 14px; font-weight: 600; color: var(--color-text-main); white-space: nowrap; transition: color var(--transition-speed) ease; }
.categories-bar__item:hover { transform: translateY(-3px); }
.categories-bar__item:hover .categories-bar__title { color: var(--color-primary); }
.categories-bar__more { font-size: 14px; font-weight: 700; color: #b4b7bc; white-space: nowrap; transition: all var(--transition-speed) ease; flex-shrink: 0; padding-left: 15px; border-left: 1px solid var(--color-border); }
.categories-bar__more:hover { color: var(--color-primary); transform: translateX(5px); }

/* ==========================================================================
   9. FEATURES ROW (Dải Giá trị cốt lõi)
   ========================================================================== */
.features-row { background-color: var(--color-bg-white); padding: 30px 0 10px 0 !important; margin-bottom: 0 !important; }
.features-row__inner { display: grid; grid-template-columns: 1fr; gap: 20px; }
.feature-item { display: flex; align-items: center; justify-content: center; gap: 15px; }
.feature-item__icon { width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--color-primary); font-size: 32px;}
.feature-item__icon img { width: 100% !important; height: 100% !important; object-fit: contain !important; }
.feature-item__text h4 { font-size: 15px; font-weight: 800; margin-bottom: 2px; text-transform: uppercase; color: var(--color-text-main); }
.feature-item__text p { font-size: 13px; color: var(--color-text-muted); margin: 0; }

@media (min-width: 1024px) {
    .features-row__inner { grid-template-columns: repeat(4, 1fr); padding: 20px 0; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
    .feature-item { justify-content: flex-start; }
    .feature-item:not(:last-child) { border-right: 1px solid var(--color-border); }
}

/* ==========================================================================
   10. ARTICLES & VIDEOS GRIDS
   ========================================================================== */
.articles-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; margin-top: 40px; }
.article-card { background: #fff; border-radius: 10px; overflow: hidden; transition: all 0.3s ease; border: 1px solid #f1f1f1; }
.article-card:hover { transform: translateY(-10px); box-shadow: 0 20px 40px rgba(0,0,0,0.08); }
.article-card__title a { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; text-overflow: ellipsis; min-height: 50px; }
.article-card__thumb { width: 100%; aspect-ratio: 16 / 9; overflow: hidden; }
.article-card__thumb a { display: block; width: 100%; height: 100%; }
.article-card__thumb img { width: 100% !important; height: 100% !important; object-fit: cover !important; object-position: center; display: block; border-radius: 0; transition: transform 0.5s ease; }
.article-card:hover .article-card__thumb img { transform: scale(1.08); }
.article-card__body { padding: 25px; }
.article-card__tag { color: var(--color-primary); font-size: 12px; font-weight: 800; }
.article-card__title { font-size: 18px; margin: 10px 0; line-height: 1.4; }

.videos-grid { display: grid; grid-template-columns: 1fr; gap: 30px; }
.video-card__facade { position: relative; border-radius: 20px; overflow: hidden; cursor: pointer; }
.video-card__play-btn { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 60px; height: 60px; background: var(--color-primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 20px; }

/* ==========================================================================
   11. NEWSLETTER & CONTACT FORM 7
   ========================================================================== */
.newsletter-box { background-color: var(--color-bg-white); border: 1px solid #f1f1f1; border-radius: var(--radius-lg); padding: 40px 50px; display: flex; align-items: center; justify-content: space-between; gap: 40px; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03); }
.newsletter-content { display: flex; align-items: center; gap: 20px; flex: 1; }
.newsletter-icon { width: 60px; height: 60px; background-color: var(--color-primary); color: var(--color-bg-white); border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.newsletter-text h3 { font-size: 18px; font-weight: 800; color: var(--color-text-main); margin-bottom: 5px; }
.newsletter-text p { font-size: 14px; color: var(--color-text-muted); margin: 0; }

.newsletter-form-wrapper { flex: 0 0 450px; max-width: 50%; }
.custom-cf7-newsletter { display: flex; gap: 10px; width: 100%; }
.newsletter-form-wrapper .wpcf7 form .wpcf7-p { margin: 0; padding: 0; }
.custom-cf7-newsletter p { display: flex; gap: 15px; width: 100%; margin: 0; }
.custom-cf7-newsletter br { display: none !important; }
.custom-cf7-newsletter .wpcf7-form-control-wrap { flex: 1; display: block; }

.custom-cf7-newsletter input[type="email"] { width: 100%; padding: 12px 20px; border: 1px solid var(--color-border); border-radius: var(--radius-md); font-size: 15px; outline: none; background-color: #fff; transition: border-color 0.3s ease; }
.custom-cf7-newsletter input[type="submit"] { flex-shrink: 0; padding: 12px 30px; }
.custom-cf7-newsletter input[type="submit"]:hover { background-color: var(--color-primary-hover); }
.wpcf7 form .wpcf7-response-output { margin: 10px 0 0 0 !important; padding: 8px 15px !important; font-size: 13px; border-radius: 4px; }

/* ==========================================================================
   12. ARCHIVE, SINGLE POST & PAGINATION
   ========================================================================== */
.category-pills-wrapper { width: 100%; overflow-x: auto; scrollbar-width: none; }
.category-pills-wrapper::-webkit-scrollbar { display: none; }
.category-pills { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; padding: 0; margin: 0; }
.category-pills li a { padding: 8px 18px; font-size: 14px; font-weight: 600; color: #4b5563 !important; background: #f3f4f6 !important; border-radius: 6px; text-decoration: none !important; transition: all 0.3s ease; display: block; }
.category-pills li a:hover { background: #e5e7eb !important; color: var(--color-primary) !important; }
.category-pills li.current-menu-item a, .category-pills li.current-cat a { background: var(--color-primary) !important; color: #ffffff !important; }

.archive-articles-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; margin-bottom: 50px; }
.list-article-card { display: flex; align-items: flex-start; background: var(--color-bg-white); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 20px; gap: 20px; transition: all var(--transition-speed) ease; }
.list-article-card:hover { box-shadow: 0 15px 35px rgba(0,0,0,0.05); transform: translateY(-4px); border-color: #fff; }
.list-article-card__thumb { flex: 0 0 200px; border-radius: var(--radius-md); overflow: hidden; }
.list-article-card__thumb a { display: block; }
.list-article-card__thumb img { width: 100% !important; aspect-ratio: 4 / 3; object-fit: cover !important; display: block; transition: transform 0.5s ease; }
.list-article-card:hover .list-article-card__thumb img { transform: scale(1.05); }
.list-article-card__content { flex: 1; display: flex; flex-direction: column; min-height: 150px; }
.list-article-card__cat { font-size: 11px; font-weight: 800; color: var(--color-primary); text-transform: uppercase; margin-bottom: 8px; letter-spacing: 0.5px; }
.list-article-card__title { font-size: 17px; font-weight: 700; line-height: 1.4; margin: 0 0 10px 0; }
.list-article-card__title a { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.list-article-card__excerpt { font-size: 13px; line-height: 1.5; color: var(--color-text-muted); margin-bottom: 15px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.list-article-card__meta { display: flex; align-items: center; gap: 15px; margin-top: auto; }
.meta-item { font-size: 12px; color: #999; display: flex; align-items: center; gap: 6px; }
.meta-item svg { color: #bbb; }

.haomk-pagination { margin: 50px 0; display: flex; justify-content: center; }
.haomk-pagination .page-numbers { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; margin: 0 5px; border-radius: 8px; background: #f3f4f6; color: var(--color-text-main); font-weight: 600; text-decoration: none; transition: all 0.3s ease; }
.haomk-pagination .page-numbers:hover, .haomk-pagination .page-numbers.current { background: var(--color-primary); color: #ffffff; }
.haomk-pagination .prev, .haomk-pagination .next { width: auto !important; padding: 0 20px !important; font-size: 14px; }

/* Single Post */
.single-post-grid { display: grid; grid-template-columns: 1fr 350px; gap: 50px; padding-top: 40px; }
.entry-content p { font-size: 17px; line-height: 1.8; margin-bottom: 10px; }
.entry-content h2 { margin: 0 0 15px; font-size: 20px; }

/* Định dạng thẻ ul, ol - Đã fix lỗi lặp code */
.entry-content ul { list-style-type: disc; list-style-position: inside; padding-left: 20px; margin: 20px 0; }
.entry-content ol { list-style-type: decimal; list-style-position: inside; padding-left: 20px; margin: 20px 0; }
.entry-content ul li::marker { color: var(--color-primary); font-size: 1.2em; }
.entry-content ul li, .entry-content ol li { padding-left: 5px; margin-bottom: 8px; line-height: 1.7; color: #4b5563; }

.toc-container { background: #f9f9f9; padding: 20px; border-radius: 8px; margin-bottom: 30px; }
.toc-container h3 { margin-top: 0; font-size: 18px; color: #333; }
.toc-container ul { list-style: none; padding: 0; margin: 0; }
.toc-container ul li { margin: 8px 0; padding-left: 0; }
.toc-container ul li a { text-decoration: none; color: #666; font-size: 15px; transition: 0.3s; }
.toc-container ul li a:hover { color: var(--color-primary); }

.single-post-sidebar { position: sticky; top: 20px; height: fit-content; }
.related-item { display: flex; gap: 15px; margin-bottom: 20px; align-items: flex-start;}
.related-item a:hover, .related-info a:hover { color: var(--color-primary) !important; }
.post-actions a { transition: all 0.3s ease; }
.post-actions a:hover { transform: translateY(-2px); box-shadow: 0 4px 6px rgba(0,0,0,0.1); opacity: 0.9; }

/* Single Video */
.single-video-grid { display: grid; grid-template-columns: 1fr 380px; gap: 40px; }
.video-player-wrapper { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; background: #000; border-radius: 12px; margin-bottom: 20px; }
.video-player-wrapper iframe, .video-player-wrapper embed, .video-player-wrapper object, .video-player-wrapper video { position: absolute; top: 0; left: 0; width: 100% !important; height: 100% !important; border: none; }
.playlist-item:hover { background: #f9fafb; cursor: pointer; }
.playlist-item:hover a { color: var(--color-primary) !important; }

/* ==========================================================================
   13. FOOTER
   ========================================================================== */
.site-footer { background-color: var(--color-bg-white); padding: 60px 0 30px; border-top: 1px solid #f1f1f1; margin-top: 40px; }
.site-footer__grid { display: grid !important; grid-template-columns: 2fr 1fr 1fr 1.5fr !important; gap: 30px; width: 100%; align-items: start; }
.site-footer__logo-img { display: inline-block; margin-bottom: 15px; transition: opacity var(--transition-speed) ease; }
.site-footer__logo-img:hover { opacity: 0.8; }
.site-footer__brand h3 { font-size: 26px; font-weight: 900; color: var(--color-text-main); margin: 0 0 15px 0; }
.site-footer__brand p { font-size: 14px; color: var(--color-text-muted); line-height: 1.6; margin: 0 0 20px 0; max-width: 90%; }
.site-footer__socials { display: flex; gap: 15px; margin-top: 20px; }
.site-footer__socials a { display: flex; align-items: center; justify-content: center; color: var(--color-text-main); transition: all var(--transition-speed) ease; }
.site-footer__socials a:hover { color: var(--color-primary); transform: translateY(-3px); }
.site-footer__menu h4, .site-footer__about h4, .site-footer__contact h4 { font-size: 14px; font-weight: 800; color: var(--color-text-main); margin: 0 0 20px 0; text-transform: uppercase; }
.site-footer__menu ul, .site-footer__about ul, .site-footer__contact ul { list-style: none; padding: 0; margin: 0 0 25px 0; }
.site-footer__menu ul li, .site-footer__about ul li, .site-footer__contact ul li { margin-bottom: 12px; }
.site-footer__menu ul li a, .site-footer__about ul li a, .site-footer__contact ul li a { font-size: 14px; color: var(--color-text-muted); text-decoration: none; transition: all var(--transition-speed) ease; display: inline-block; }
.site-footer__menu ul li a:hover, .site-footer__about ul li a:hover, .site-footer__contact ul li a:hover { color: var(--color-primary); transform: translateX(5px); }
.site-footer__copyright p { font-size: 13px; color: var(--color-text-muted); margin: 0; }

.custom-social-icon { width: 18px; height: 18px; object-fit: contain; display: block; }

/* ==========================================================================
   14. VÙNG RESPONSIVE (TỐI ƯU MOBILE & TABLET TOÀN DIỆN)
   ========================================================================== */

/* --- TABLET --- */
@media (max-width: 1024px) {
    .hero-section__wrapper { grid-template-columns: 1fr; text-align: center; }
    .site-footer__grid { grid-template-columns: repeat(2, 1fr) !important; }
    
    /* Vùng About Page */
    .about-hero > div, .about-mission > div { flex-direction: column !important; gap: 40px; text-align: center; }
    .about-hero__image-quote { margin: 0 auto; width: auto !important; }
    .about-featured-image { width: 300px !important; height: 300px !important; margin: 0 auto; }
    .about-quote-box { right: -10px !important; bottom: -10px !important; max-width: 200px; padding: 15px !important; }
    .about-quote-box p { font-size: 12px !important; margin-bottom: 5px !important; }
    .about-quote-box span { font-size: 24px !important; }
    .about-hero__content { padding-left: 0 !important; }
    .about-hero__buttons { justify-content: center; }
    .about-stats { grid-template-columns: repeat(3, 1fr) !important; }
    .about-stats-item:nth-child(4), .about-stats-item:nth-child(5) { border-left: none !important; border-top: 1px solid #f3f4f6; padding-top: 20px; }
    .about-mission__image { flex: 0 0 100% !important; max-width: 300px; margin: 0 auto; }
    .about-mission ul li { text-align: left; }
    
    .feature-item { border-right: none !important; border-bottom: 1px solid #f1f1f1; padding-bottom: 15px !important; margin-bottom: 5px; width: 100%; }
    .feature-item:last-child { border-bottom: none; padding-bottom: 0 !important; margin-bottom: 0; }
    
    .categories-bar__wrapper { flex-direction: column; align-items: stretch; padding: 20px 15px; gap: 15px; }
    .categories-bar__list { width: 100%; gap: 30px; padding-bottom: 5px; }
    .categories-bar__more { text-align: center; border-left: none; border-top: 1px solid var(--color-border); padding-left: 0; padding-top: 15px; margin-top: 5px; }
    
    .list-article-card__thumb { flex: 0 0 160px; }
    .single-post-grid, .single-video-grid { grid-template-columns: 1fr; }
    .video-meta-bar { flex-direction: column; align-items: flex-start; }
}

@media (min-width: 1024px) {
    .site-header__nav { display: block; }
    .hero-section__wrapper { display: grid; grid-template-columns: 1.2fr 0.8fr; align-items: center; }
    .hero-section__title { font-size: 3.5rem; }
    .categories-section__grid { display: flex; justify-content: center; overflow: visible; }
    .articles-grid, .videos-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; } 
    .mobile-toggle { display: none; }
}

/* --- MOBILE --- */
@media (max-width: 767px) {
    .container { padding-left: 15px; padding-right: 15px; }
    .site-header__wrapper { padding: 0 10px; }
    .site-header__actions { display: none; } /* Ẩn tìm kiếm PC nhường cho Hamburger */
    .search-dropdown-box { right: -50px; }
    
    /* Hamburger Menu & Nav - Đã tối ưu không bị cắt chiều cao */
    .mobile-toggle { display: block; background: transparent; border: none; cursor: pointer; padding: 10px; z-index: 999; }
    .mobile-toggle__line { display: block; width: 25px; height: 3px; margin: 5px auto; background-color: var(--color-text-main); transition: all 0.3s ease-in-out; border-radius: 3px; }
    .site-header__nav { position: absolute; top: 70px; left: 0; width: 100%; background-color: #ffffff; box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1); padding: 0; max-height: 0; overflow-y: auto; transition: max-height 0.4s ease-in-out, padding 0.4s ease-in-out; z-index: 998; }
    .main-menu { flex-direction: column; gap: 0; }
    .main-menu li { border-bottom: 1px solid var(--color-border); }
    .main-menu a { display: block; padding: 15px 20px; font-size: 16px; }
    .site-header__cta { display: none !important; }
    .site-header__nav.is-active { max-height: 100vh; padding: 10px 0; }
    .mobile-toggle.is-active .mobile-toggle__line:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .mobile-toggle.is-active .mobile-toggle__line:nth-child(2) { opacity: 0; }
    .mobile-toggle.is-active .mobile-toggle__line:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

    .hero-section { padding: 40px 0; text-align: center; }
    .badge { display: none; }
    
    .section-header { flex-direction: column; align-items: flex-start; gap: 8px; }

    /* Slider ngang cho thẻ bài viết/video */
    .articles-grid, .videos-grid { display: flex !important; flex-wrap: nowrap !important; overflow-x: auto; overflow-y: hidden; scroll-snap-type: x mandatory; scrollbar-width: none; gap: 15px; padding-bottom: 15px; margin-left: -15px; margin-right: -15px; padding-left: 15px; padding-right: 15px; }
    .articles-grid::-webkit-scrollbar, .videos-grid::-webkit-scrollbar { display: none; }
    .article-card, .video-card { flex: 0 0 85% !important; scroll-snap-align: start; height: auto; }
    .video-card__facade { width: 100%; aspect-ratio: 16 / 9; overflow: hidden; }
    
    /* Tính năng cốt lõi (Lưới 2x2) */
    .features-row__inner { grid-template-columns: repeat(2, 1fr) !important; gap: 20px 10px; padding: 0 15px; }
    .feature-item { justify-content: flex-start; align-items: flex-start; gap: 10px; }
    .feature-item__icon { width: 32px; height: 32px; margin-top: 2px; }
    .feature-item__text h4 { font-size: 13px; margin-bottom: 2px; }
    .feature-item__text p { font-size: 11px; line-height: 1.3; }
    .feature-item__text { text-align: left !important; width: 100%; }

    /* Newsletter */
    .newsletter-box { flex-direction: column !important; padding: 30px 20px !important; gap: 25px !important; text-align: center; }
    .newsletter-content { flex-direction: column !important; width: 100% !important; gap: 15px !important; }
    .newsletter-icon { margin: 0 auto; }
    .newsletter-form-wrapper { flex: none !important; width: 100% !important; max-width: 100% !important; margin-left: 0 !important; }
    .custom-cf7-newsletter p { flex-direction: column !important; gap: 12px !important; }
    .custom-cf7-newsletter input[type="email"], .custom-cf7-newsletter input[type="submit"] { width: 100% !important; }

    /* Footer */
    .site-footer__grid { grid-template-columns: 1fr !important; gap: 40px; text-align: left !important; }
    .site-footer__brand p { max-width: 100%; }
    .site-footer__socials { justify-content: flex-start !important; }
    .site-footer__menu ul li a:hover, .site-footer__about ul li a:hover, .site-footer__contact ul li a:hover { transform: none; }

    /* Archive & About Page */
    .archive-articles-grid { grid-template-columns: 1fr; gap: 20px; }
    .list-article-card { flex-direction: column; padding: 15px; gap: 15px; }
    .list-article-card__thumb { flex: none; width: 100%; }
    .list-article-card__thumb img { aspect-ratio: 16 / 9; }
    .list-article-card__content { min-height: auto; }
    
    .personal-highlight-box { flex-direction: column; text-align: center; padding: 30px 20px !important; }
    .highlight-content { align-items: center; display: flex; flex-direction: column; }
    .highlight-content div[style*="border-left"] { border-left: none !important; border-top: 2px solid var(--color-primary); padding-left: 0 !important; padding-top: 15px; justify-content: center; }
    
    .about-page { color: #374151; }
    .about-hero h2 { font-size: 36px !important; }
    .about-hero__buttons { flex-direction: column; align-items: stretch; gap: 10px; }
    .about-stats { grid-template-columns: repeat(2, 1fr) !important; gap: 15px; padding: 20px !important; }
    .about-stats-item { border-left: none !important; border-bottom: 1px solid #f3f4f6; padding-bottom: 15px; }
    .about-stats-item:last-child { border-bottom: none; padding-bottom: 0; }
    .about-timeline-support > div { grid-template-columns: 1fr !important; gap: 40px; }
    
    /* Fix Timeline lệch trên điện thoại */
    .about-timeline__content > div > div[style*="position: absolute; left: 50%"] { left: 10px !important; transform: none !important; }
    .about-timeline__content > div > div { padding-left: 30px !important; padding-right: 0 !important; text-align: left !important; padding-bottom: 30px !important; }
    .about-timeline__content > div > div:empty { display: none; }
    .about-timeline__content span { left: -5px !important; right: auto !important; }
}
/* Đánh chặn mọi biến thể của class site-header_nav hoặc site-header__nav */
@media (min-width: 1024px) {
    nav[class*="site-header"] ul.main-menu {
        display: flex !important;
        flex-direction: row !important;
        list-style: none !important;
        margin: 0 !important;
        padding: 0 !important;
    }
    nav[class*="site-header"] ul.main-menu li {
        display: block !important;
        margin-right: 20px !important;
    }
    nav[class*="site-header"] ul.main-menu li a {
        display: block !important;
        font-weight: 600 !important;
        color: #1f2937 !important;
    }
}