/*
Theme Name: SVTD Valuation Portal
Theme URI: https://sinhvienthamdinh.com/
Author: SVTD Team
Description: Giao diện Cổng thông tin & Diễn đàn Sinh viên Thẩm định giá Việt Nam - Thiết kế chuẩn thương hiệu V-C-S (#005992) và tối ưu hóa cấu trúc SEO.
Version: 3.0.0
Text Domain: svtd-theme
*/

:root {
    /* Bảng màu chuẩn theo Logo chính thức V-C-S (Community Of Valuation Student) */
    --vcs-blue: #005992;          /* Màu nền xanh chủ đạo của Logo */
    --vcs-blue-dark: #00416b;     /* Xanh đậm cho Topbar & Footer */
    --vcs-blue-deeper: #002e4d;   /* Xanh đen cho chân trang */
    --vcs-diamond-blue: #0a489b;  /* Màu ô C trong Logo */
    --vcs-diamond-red: #d9252d;   /* Màu ô V trong Logo */
    --vcs-diamond-amber: #f39c12; /* Màu ô S trong Logo */
    --vcs-amber-hover: #d68910;

    --bg-body: #f1f5f9;
    --bg-surface: #ffffff;
    --bg-subtle: #f8fafc;
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --border-strong: #cbd5e1;

    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.12), 0 8px 10px -6px rgba(15, 23, 42, 0.08);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.55;
    font-size: 14.5px;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--vcs-blue);
    text-decoration: none;
    transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

a:hover {
    color: var(--vcs-diamond-red);
}

.svtd-container {
    max-width: 1260px;
    margin: 0 auto;
    padding: 0 16px;
}

.svtd-icon {
    width: 16px;
    height: 16px;
    vertical-align: -3px;
    fill: currentColor;
    flex-shrink: 0;
}

/* ==========================================================================
   1. TOP UTILITY BAR (#00416b)
   ========================================================================== */
.svtd-topbar {
    background-color: var(--vcs-blue-dark);
    color: rgba(255, 255, 255, 0.88);
    font-size: 12.5px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.svtd-topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 38px;
    gap: 12px;
    flex-wrap: wrap;
    padding-top: 4px;
    padding-bottom: 4px;
}

.svtd-topbar-left {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.svtd-topbar-slogan {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #ffffff;
    font-weight: 500;
}

.svtd-topbar-links {
    display: flex;
    align-items: center;
    gap: 14px;
}

.svtd-topbar-links a {
    color: rgba(255, 255, 255, 0.82);
    font-weight: 500;
}

.svtd-topbar-links a:hover {
    color: var(--vcs-diamond-amber);
}

.svtd-topbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.svtd-btn-auth {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 13px;
    line-height: 1.3;
    white-space: nowrap;
    transition: all 0.15s ease;
}

.svtd-btn-login {
    color: var(--vcs-blue) !important;
    background: #f0f7fc;
    border: 1px solid #bae0f7;
}

.svtd-btn-login:hover {
    background: var(--vcs-blue);
    color: #ffffff !important;
    border-color: var(--vcs-blue);
}

.svtd-btn-register {
    color: #ffffff !important;
    background: var(--vcs-diamond-amber);
    border: 1px solid var(--vcs-diamond-amber);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
}

.svtd-btn-register:hover {
    background: var(--vcs-amber-hover);
    border-color: var(--vcs-amber-hover);
}

.svtd-user-badge {
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-right: 4px;
}

/* ==========================================================================
   2. OFFICIAL BRAND HEADER (#005992 - Đồng màu nền Logo V-C-S)
   ========================================================================== */
.svtd-header {
    background-color: var(--vcs-blue);
    color: #ffffff;
    padding: 14px 0;
}

.svtd-header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.svtd-brand {
    display: flex;
    align-items: center;
    gap: 16px;
    color: #ffffff !important;
}

.svtd-official-logo {
    height: 62px;
    width: auto;
    display: block;
    object-fit: contain;
}

.svtd-brand-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.22);
}

.svtd-brand-text .site-title {
    font-size: 19px;
    font-weight: 700;
    letter-spacing: 0.2px;
    color: #ffffff;
    line-height: 1.25;
    text-transform: uppercase;
}

.svtd-brand-text .site-tagline {
    display: block;
    font-size: 12.5px;
    color: rgba(255, 255, 255, 0.85);
    margin-top: 3px;
    font-weight: 400;
}

/* Thanh tìm kiếm Header */
.svtd-header-search {
    flex: 0 1 420px;
    width: 100%;
}

.svtd-search-form {
    display: flex;
    background: #ffffff;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.svtd-search-form input[type="search"] {
    flex: 1;
    border: none;
    background: transparent;
    padding: 9px 14px;
    color: var(--text-primary);
    font-size: 13.5px;
    outline: none;
}

.svtd-search-form input[type="search"]::placeholder {
    color: var(--text-muted);
}

.svtd-search-form button {
    background: var(--vcs-diamond-amber);
    color: #ffffff;
    border: none;
    padding: 0 16px;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background 0.15s;
}

.svtd-search-form button:hover {
    background: var(--vcs-amber-hover);
}

/* ==========================================================================
   3. PROFESSIONAL NAVIGATION BAR (Không thanh cuộn thừa, hỗ trợ Dropdown mượt)
   ========================================================================== */
.svtd-nav {
    background: linear-gradient(180deg, #004b7c 0%, #003d66 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 3px solid var(--vcs-diamond-amber);
    box-shadow: 0 2px 8px rgba(0, 40, 70, 0.25);
    position: sticky;
    top: 0;
    z-index: 999;
}

.svtd-nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
    gap: 6px;
}

.svtd-nav-list {
    list-style: none;
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
    margin: 0;
    padding: 0;
    gap: 1px;
}

.svtd-nav-auth {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 4px 0;
    margin-left: auto;
    flex-shrink: 0;
}

.svtd-nav-item {
    position: relative;
}

.svtd-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 10px 8px;
    color: rgba(255, 255, 255, 0.92);
    font-weight: 600;
    font-size: 13px;
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: background-color 0.15s, color 0.15s, border-color 0.15s;
}

@media (min-width: 993px) and (max-width: 1200px) {
    .svtd-nav-link {
        padding: 10px 5px;
        font-size: 12px;
        gap: 2px;
    }
    .svtd-nav-auth {
        gap: 3px;
    }
    .svtd-btn-auth {
        padding: 3px 6px;
        font-size: 11.5px;
    }
}

.svtd-nav-link:hover,
.svtd-nav-item:hover > .svtd-nav-link,
.svtd-nav-link.active {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.1);
    border-bottom-color: var(--vcs-diamond-amber);
}

/* Nút Đăng nhập & tên user trên nền menu xanh đậm */
.svtd-nav .svtd-btn-login {
    color: #ffffff !important;
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.45);
}

.svtd-nav .svtd-btn-login:hover {
    background: #ffffff;
    color: var(--vcs-blue) !important;
    border-color: #ffffff;
}

.svtd-nav .svtd-user-badge {
    color: #ffffff;
}

.svtd-caret {
    font-size: 10px;
    opacity: 0.65;
    margin-left: 2px;
}

/* Công cụ là nhóm mở rộng, không điều hướng tới một chuyên mục bài viết. */
.svtd-tools-toggle {
    font-family: inherit;
    background: transparent;
    border-top: 0;
    border-left: 0;
    border-right: 0;
    cursor: pointer;
    text-align: left;
}
.svtd-tools-menu.sub-open > .svtd-nav-dropdown { display: block; }
.svtd-tools-menu > .svtd-nav-dropdown { left: auto; right: 0; }
.svtd-tools-menu:not(.sub-open):hover > .svtd-nav-dropdown { display: none; }

/* Dropdown Menu */
.svtd-nav-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 260px;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-top: 3px solid var(--vcs-blue);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    box-shadow: var(--shadow-md);
    list-style: none;
    padding: 6px 0;
    z-index: 1000;
}

.svtd-nav-item:hover .svtd-nav-dropdown {
    display: block;
}

.svtd-nav-dropdown li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    color: var(--text-secondary);
    font-size: 13.5px;
    font-weight: 500;
    border-left: 3px solid transparent;
}

.svtd-nav-dropdown li a:hover {
    background: #f0f7fc;
    color: var(--vcs-blue);
    border-left-color: var(--vcs-diamond-amber);
}

/* ==========================================================================
   4. MAIN LAYOUT GRID (2 CỘT: 72% MAIN - 28% SIDEBAR)
   ========================================================================== */
.svtd-main-wrap {
    padding: 22px 0 44px;
}

.svtd-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 22px;
    align-items: start;
}

/* Khối 2 Banner Tuyển dụng & Liên hệ Quảng cáo */
.svtd-promo-banners {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.svtd-promo-banners a,
.svtd-promo-banners .svtd-banner-item {
    display: block;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-xs);
    background: #ffffff;
    line-height: 0;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.svtd-promo-banners a:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.svtd-promo-banners img {
    width: 100%;
    height: auto;
    display: block;
}

/* SEO Intro Banner trên Trang chủ */
.svtd-seo-hero {
    background: linear-gradient(90deg, #ffffff 0%, #f0f7fc 100%);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--vcs-blue);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    box-shadow: var(--shadow-xs);
}

.svtd-seo-hero h1 {
    font-size: 16px;
    font-weight: 700;
    color: var(--vcs-blue-dark);
    margin-bottom: 3px;
}

.svtd-seo-hero p {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0;
}

.svtd-seo-quicktags {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

/* ==========================================================================
   4.5. KHỐI TIN TIÊU ĐIỂM KIỂU BÁO CHÍ (NEWSPAPER SPOTLIGHT: 1 TIN LỚN + 3 TIN PHỤ)
   ========================================================================== */
.svtd-news-spotlight {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 18px;
    margin-bottom: 22px;
    box-shadow: var(--shadow-xs);
}

.svtd-spotlight-hero {
    display: grid;
    grid-template-columns: 1.45fr 1fr;
    gap: 20px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border-color);
    align-items: start;
}

.svtd-spotlight-hero-img {
    display: block;
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: #e2e8f0;
}

.svtd-spotlight-hero-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.25s ease;
}

.svtd-spotlight-hero-img:hover img {
    transform: scale(1.03);
}

.svtd-spotlight-hero-body h2 {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.35;
    margin: 0 0 10px;
}

.svtd-spotlight-hero-body h2 a {
    color: var(--text-primary);
}

.svtd-spotlight-hero-body h2 a:hover {
    color: var(--vcs-blue);
}

.svtd-spotlight-excerpt {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.58;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 5;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.svtd-spotlight-meta {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Hàng 3 bài tiêu điểm phụ phía dưới */
.svtd-spotlight-subgrid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    padding-top: 18px;
}

.svtd-spotlight-card {
    display: flex;
    flex-direction: column;
}

.svtd-spotlight-card-img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 10;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: #e2e8f0;
    margin-bottom: 10px;
}

.svtd-spotlight-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.25s ease;
}

.svtd-spotlight-card-img:hover img {
    transform: scale(1.03);
}

.svtd-spotlight-card h3 {
    font-size: 15px;
    font-weight: 700;
    line-height: 1.4;
    margin: 0 0 6px;
}

.svtd-spotlight-card h3 a {
    color: var(--text-primary);
}

.svtd-spotlight-card h3 a:hover {
    color: var(--vcs-blue);
}

.svtd-spotlight-card-meta {
    font-size: 12px;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

@media (max-width: 768px) {
    .svtd-spotlight-hero {
        grid-template-columns: 1fr;
    }
    .svtd-spotlight-subgrid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   5. FORUM & SECTION BLOCKS (Chuẩn Diễn đàn Chuyên nghiệp)
   ========================================================================== */
.svtd-section-block {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 22px;
    box-shadow: var(--shadow-xs);
    overflow: hidden;
}

.svtd-section-header {
    background: var(--vcs-blue);
    color: #ffffff;
    padding: 11px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--vcs-diamond-amber);
}

.svtd-section-header h2 {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #ffffff;
    margin: 0;
}

.svtd-section-header a.svtd-view-all {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
    padding: 2px 8px;
    background: rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-sm);
}

.svtd-section-header a.svtd-view-all:hover {
    background: var(--vcs-diamond-amber);
    color: #ffffff;
}

/* Danh sách bài viết tiêu điểm (Table-like Clean List) */
.svtd-latest-list {
    divide-y: 1px solid var(--border-color);
}

.svtd-latest-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 150px;
    gap: 16px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
    transition: background-color 0.12s ease;
}

.svtd-latest-row:last-child {
    border-bottom: none;
}

.svtd-latest-row:hover {
    background-color: #f8fbff;
}

.svtd-latest-main {
    min-width: 0;
}

.svtd-latest-title-wrap {
    display: flex;
    align-items: baseline;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 4px;
}

.svtd-cat-badge {
    display: inline-block;
    background: #e6f2fa;
    color: var(--vcs-blue);
    border: 1px solid #bae0f7;
    font-size: 11.5px;
    font-weight: 600;
    padding: 1px 7px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.svtd-cat-badge:hover {
    background: var(--vcs-blue);
    color: #ffffff;
    border-color: var(--vcs-blue);
}

.svtd-latest-title {
    font-size: 14.5px;
    font-weight: 600;
    line-height: 1.4;
    margin: 0;
    display: inline;
}

.svtd-latest-title a {
    color: var(--text-primary);
}

.svtd-latest-title a:hover {
    color: var(--vcs-blue);
}

.svtd-latest-sub {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 12px;
    color: var(--text-muted);
}

.svtd-latest-stats {
    text-align: right;
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.svtd-latest-stats strong {
    color: var(--text-secondary);
    font-weight: 600;
}

/* Thẻ Hashtag / Tag chuẩn SEO */
.svtd-tags-inline {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    flex-wrap: wrap;
}

.svtd-tag-chip {
    display: inline-flex;
    align-items: center;
    background: #f1f5f9;
    color: #475569;
    border: 1px solid #cbd5e1;
    font-size: 11px;
    font-weight: 500;
    padding: 1px 6px;
    border-radius: 3px;
    line-height: 1.4;
}

.svtd-tag-chip:hover {
    background: var(--vcs-blue);
    color: #ffffff !important;
    border-color: var(--vcs-blue);
}

/* Danh sách Chuyên mục (Forum Node Rows) */
.svtd-forum-row {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) 95px 250px;
    gap: 14px;
    padding: 13px 16px;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
    transition: background 0.12s;
}

.svtd-forum-row:last-child {
    border-bottom: none;
}

.svtd-forum-row:hover {
    background: #f8fbff;
}

.svtd-forum-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    background: #e6f2fa;
    color: var(--vcs-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #c5e4f7;
}

.svtd-forum-info h3 {
    font-size: 14.5px;
    font-weight: 700;
    margin-bottom: 2px;
}

.svtd-forum-info h3 a {
    color: var(--text-primary);
}

.svtd-forum-info h3 a:hover {
    color: var(--vcs-blue);
}

.svtd-forum-desc {
    font-size: 12.5px;
    color: var(--text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.svtd-subforums {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 6px;
}

.svtd-subforum-pill {
    font-size: 11.5px;
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    padding: 1px 8px;
    border-radius: 3px;
    color: var(--text-secondary);
    font-weight: 500;
}

.svtd-subforum-pill:hover {
    border-color: var(--vcs-blue);
    color: var(--vcs-blue);
    background: #e6f2fa;
}

.svtd-forum-stat {
    text-align: center;
    background: var(--bg-subtle);
    padding: 5px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.svtd-forum-stat .num {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--vcs-blue);
}

.svtd-forum-stat .lbl {
    font-size: 11px;
    color: var(--text-muted);
}

.svtd-forum-latest {
    font-size: 12.5px;
    overflow: hidden;
    border-left: 2px solid var(--border-color);
    padding-left: 12px;
}

.svtd-forum-latest a.latest-title {
    display: block;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
}

.svtd-forum-latest a.latest-title:hover {
    color: var(--vcs-blue);
}

.svtd-forum-latest .latest-meta {
    color: var(--text-muted);
    font-size: 11.5px;
}

/* ==========================================================================
   6. SIDEBAR WIDGETS (Đăng nhập, Thống kê, Tài liệu, Hashtags SEO)
   ========================================================================== */
.svtd-widget {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 18px;
    box-shadow: var(--shadow-xs);
    overflow: hidden;
}

.svtd-widget-title {
    background: var(--vcs-blue);
    color: #ffffff;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    padding: 10px 14px;
    border-bottom: 2px solid var(--vcs-diamond-amber);
    display: flex;
    align-items: center;
    gap: 8px;
}

.svtd-widget-body {
    padding: 14px;
}

/* Thống kê 2x2 */
.svtd-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.svtd-stat-box {
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 8px;
    text-align: center;
}

.svtd-stat-box .stat-value {
    display: block;
    font-size: 17px;
    font-weight: 800;
    color: var(--vcs-blue);
    line-height: 1.2;
}

.svtd-stat-box .stat-label {
    font-size: 11.5px;
    color: var(--text-muted);
    margin-top: 2px;
}

.svtd-newest-member {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--border-color);
    font-size: 12.5px;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Form đăng nhập Sidebar */
.svtd-login-box label {
    display: block;
    font-size: 12.5px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-secondary);
}

.svtd-login-box input[type="text"],
.svtd-login-box input[type="password"] {
    width: 100%;
    padding: 8px 11px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    margin-bottom: 10px;
    background: var(--bg-subtle);
}

.svtd-login-box input:focus {
    border-color: var(--vcs-blue);
    background: #ffffff;
    outline: none;
}

.svtd-login-submit {
    width: 100%;
    background: var(--vcs-blue);
    color: #ffffff;
    border: none;
    padding: 9px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 13.5px;
    cursor: pointer;
    transition: background 0.15s;
}

.svtd-login-submit:hover {
    background: var(--vcs-blue-dark);
}

/* Danh sách liên kết Sidebar */
.svtd-quick-links {
    list-style: none;
}

.svtd-quick-links li {
    border-bottom: 1px solid var(--border-color);
}

.svtd-quick-links li:last-child {
    border-bottom: none;
}

.svtd-quick-links li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 2px;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 13px;
}

.svtd-quick-links li a:hover {
    color: var(--vcs-blue);
}

.svtd-quick-links .badge-count {
    background: #e6f2fa;
    color: var(--vcs-blue);
    font-size: 11px;
    font-weight: 700;
    padding: 1px 7px;
    border-radius: 10px;
}

/* Đám mây Từ khóa / Hashtags SEO */
.svtd-tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

/* ==========================================================================
   7. ARCHIVE, TAGS & SINGLE POST (Chuẩn cấu trúc SEO H1-H2-H3 & Breadcrumb)
   ========================================================================== */
.svtd-breadcrumb {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 9px 14px;
    margin-bottom: 14px;
    font-size: 12.5px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
}

.svtd-breadcrumb a {
    color: var(--vcs-blue);
    font-weight: 500;
}

.svtd-archive-header {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--vcs-blue);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-xs);
}

.svtd-archive-header h1 {
    font-size: 20px;
    font-weight: 700;
    color: var(--vcs-blue-dark);
    margin-bottom: 4px;
}

.svtd-archive-header p {
    color: var(--text-secondary);
    font-size: 13.5px;
}

.svtd-thread-list {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-xs);
}

.svtd-thread-list-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 110px 140px;
    gap: 12px;
    background: var(--vcs-blue);
    color: #ffffff;
    font-size: 12.5px;
    font-weight: 700;
    text-transform: uppercase;
    padding: 10px 16px;
    border-bottom: 2px solid var(--vcs-diamond-amber);
}

.svtd-thread-item {
    display: grid;
    grid-template-columns: 104px minmax(0, 1fr) 90px 140px;
    gap: 14px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
    transition: background 0.15s ease;
}

.svtd-thread-item:last-child {
    border-bottom: none;
}

.svtd-thread-item:hover {
    background: #f8fbff;
}

.svtd-thread-thumb {
    width: 104px;
    height: 68px;
    border-radius: 4px;
    overflow: hidden;
    background: #f1f5f9;
    display: block;
    flex-shrink: 0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    border: 1px solid rgba(0,0,0,0.06);
}

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

.svtd-thread-item:hover .svtd-thread-thumb img {
    transform: scale(1.04);
}

.svtd-thread-main h2,
.svtd-thread-main h3 {
    font-size: 14.5px;
    font-weight: 600;
    margin: 0 0 5px 0;
    line-height: 1.45;
}

.svtd-thread-main h2 a,
.svtd-thread-main h3 a {
    color: var(--text-primary);
    text-decoration: none;
}

.svtd-thread-main h2 a:hover,
.svtd-thread-main h3 a:hover {
    color: var(--vcs-blue);
}

.svtd-thread-meta {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    gap: 6px;
    align-items: center;
    flex-wrap: wrap;
}

.svtd-thread-stats {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.5;
}

.svtd-thread-stats strong {
    color: var(--text-secondary);
}

.svtd-thread-author-col {
    text-align: right;
    font-size: 12px;
    color: var(--text-muted);
}

.svtd-thread-author-col .svtd-last-author {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 3px;
    color: var(--text-primary);
    font-weight: 500;
}

.svtd-author-mini-avatar {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    vertical-align: middle;
}

/* Badge Prefix Kiểu XenForo */
.svtd-prefix-badge {
    display: inline-block;
    padding: 1.5px 6.5px;
    border-radius: 3px;
    font-size: 11.5px;
    font-weight: 600;
    line-height: 1.35;
    vertical-align: middle;
    margin-right: 5px;
    color: #ffffff !important;
}

.svtd-badge-law { background: #5bb75b; } /* Xanh lá XenForo */
.svtd-badge-disc { background: #0288d1; } /* Xanh dương XenForo */
.svtd-badge-std { background: #e67e22; } /* Cam */
.svtd-badge-cat { background: #475569; } /* Slate xám */
.svtd-badge-method { background: #005992; } /* Xanh đậm V-C-S */

/* Thanh lọc Tag đầu Category (Prefix Filter Bar) */
.svtd-filter-bar-wrap {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 10px 14px;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    box-shadow: var(--shadow-xs);
}

.svtd-filter-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

.svtd-filter-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
}

.svtd-tag-pill {
    display: inline-flex;
    align-items: center;
    padding: 3px 9px;
    border-radius: 3px;
    font-size: 12px;
    font-weight: 500;
    text-decoration: none;
    color: #475569;
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    transition: all 0.15s ease;
}

.svtd-tag-pill:hover {
    background: #e2e8f0;
    color: #0f172a;
}

.svtd-tag-pill.active {
    background: var(--vcs-blue);
    color: #ffffff;
    border-color: var(--vcs-blue);
    font-weight: 600;
}

.svtd-tag-pill.pill-law {
    background: #5bb75b;
    color: #ffffff;
    border-color: #4cae4c;
}

.svtd-tag-pill.pill-disc {
    background: #0288d1;
    color: #ffffff;
    border-color: #0277bd;
}

/* Chi tiết bài viết (Single Thread) */
.svtd-post-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xs);
    overflow: hidden;
    margin-bottom: 20px;
}

.svtd-post-header {
    padding: 16px 24px 16px;
    border-bottom: 1px solid var(--border-color);
    background: #ffffff;
}

/* Breadcrumb gọn trong thẻ bài viết */
.svtd-post-crumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12.5px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    margin-bottom: 8px;
}

.svtd-post-crumb a {
    color: var(--text-muted);
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
}

.svtd-post-crumb a:hover { color: var(--vcs-blue); }
.svtd-post-crumb .sep { color: #cbd5e1; flex-shrink: 0; }
.svtd-post-crumb a.is-current-cat { color: var(--vcs-blue); font-weight: 600; }

.svtd-post-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.35;
    margin: 0 0 12px;
}

.svtd-post-author-bar {
    display: flex;
    align-items: center;
    gap: 6px 14px;
    font-size: 13px;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.svtd-post-author-bar > * + *::before {
    content: "·";
    margin-right: 14px;
    color: #cbd5e1;
    font-weight: 700;
}

.svtd-post-admin-actions {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
}

.svtd-post-admin-actions::before {
    display: none !important;
}

.svtd-action-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2.5px 8px;
    border-radius: 4px;
    font-size: 11.5px;
    font-weight: 600;
    text-decoration: none !important;
    transition: all 0.15s ease;
}

.svtd-action-edit {
    background: #e0f2fe;
    color: #0369a1 !important;
    border: 1px solid #bae6fd;
}

.svtd-action-edit:hover {
    background: #0284c7;
    color: #ffffff !important;
    border-color: #0284c7;
}

.svtd-action-delete {
    background: #fee2e2;
    color: #b91c1c !important;
    border: 1px solid #fecaca;
}

.svtd-action-delete:hover {
    background: #dc2626;
    color: #ffffff !important;
    border-color: #dc2626;
}

.svtd-action-link .svtd-icon {
    width: 13px;
    height: 13px;
    fill: currentColor;
}

/* Khối Quản trị ở chân bài viết */
.svtd-post-manage-bar {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-left: 4px solid var(--vcs-blue);
    border-radius: var(--radius-md);
    padding: 12px 18px;
    margin: 16px 24px 24px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.svtd-manage-label {
    font-size: 13px;
    color: #475569;
}

.svtd-manage-label strong {
    color: #0f172a;
}

.svtd-manage-buttons {
    display: flex;
    align-items: center;
    gap: 8px;
}

.svtd-btn-manage {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.15s ease;
}

.svtd-btn-manage .svtd-icon {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

.svtd-btn-manage-edit {
    background: var(--vcs-blue);
    color: #ffffff !important;
}

.svtd-btn-manage-edit:hover {
    background: #00436e;
    color: #ffffff !important;
}

.svtd-btn-manage-delete {
    background: #dc2626;
    color: #ffffff !important;
}

.svtd-btn-manage-delete:hover {
    background: #b91c1c;
    color: #ffffff !important;
}

/* Quick Actions trong danh sách bài viết */
.svtd-thread-quick-actions {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.svtd-thread-action-edit,
.svtd-thread-action-delete {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: 11.5px;
    font-weight: 600;
    text-decoration: none;
    padding: 1.5px 6px;
    border-radius: 3px;
    line-height: 1.3;
}

.svtd-thread-action-edit {
    color: #0284c7 !important;
    background: #f0f9ff;
    border: 1px solid #e0f2fe;
}

.svtd-thread-action-edit:hover {
    background: #0284c7;
    color: #ffffff !important;
}

.svtd-thread-action-delete {
    color: #dc2626 !important;
    background: #fef2f2;
    border: 1px solid #fee2e2;
}

.svtd-thread-action-delete:hover {
    background: #dc2626;
    color: #ffffff !important;
}

.svtd-thread-quick-actions .svtd-icon {
    width: 11px;
    height: 11px;
    fill: currentColor;
}

.svtd-post-author-bar a { color: var(--text-muted); }
.svtd-post-author-bar a:hover { color: var(--vcs-blue); }

.svtd-post-author {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
}

.svtd-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--vcs-blue);
    color: #ffffff;
    font-size: 12.5px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

@media (max-width: 768px) {
    .svtd-post-header { padding: 14px 16px; }
    .svtd-post-header h1 { font-size: 20px; }
    .svtd-post-author-bar { font-size: 12px; gap: 6px 10px; }
    .svtd-post-author-bar > * + *::before { margin-right: 10px; }
}

.svtd-post-tags-bar {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--border-color);
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.svtd-post-content {
    padding: 24px;
    font-size: 15.5px;
    line-height: 1.75;
    color: #1e293b;
    overflow-wrap: break-word;
}

.svtd-post-content p {
    margin-bottom: 14px;
}

.svtd-post-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

.svtd-post-footer-tags {
    padding: 14px 24px;
    background: var(--bg-subtle);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

/* Pagination */
.svtd-pagination {
    margin-top: 18px;
    display: flex;
    justify-content: center;
    gap: 6px;
    flex-wrap: wrap;
}

.svtd-pagination .page-numbers {
    display: inline-block;
    padding: 6px 12px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
}

.svtd-pagination .page-numbers.current,
.svtd-pagination .page-numbers:hover {
    background: var(--vcs-blue);
    color: #ffffff;
    border-color: var(--vcs-blue);
}

/* ==========================================================================
   8. FOOTER (#002e4d)
   ========================================================================== */
.svtd-footer {
    background: var(--vcs-blue-deeper);
    color: #cbd5e1;
    padding: 36px 0 22px;
    border-top: 4px solid var(--vcs-diamond-amber);
    font-size: 13px;
}

.svtd-footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 28px;
    margin-bottom: 24px;
}

.svtd-footer h4 {
    color: #ffffff;
    font-size: 13.5px;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 12px;
    letter-spacing: 0.4px;
}

.svtd-footer ul {
    list-style: none;
}

.svtd-footer ul li {
    margin-bottom: 7px;
}

.svtd-footer ul li a {
    color: #94a3b8;
}

.svtd-footer ul li a:hover {
    color: var(--vcs-diamond-amber);
}

.svtd-footer-bottom {
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #94a3b8;
    flex-wrap: wrap;
    gap: 10px;
}

/* ==========================================================================
   9. MOBILE HEADER, OFF-CANVAS MENU DRAWER & RESPONSIVE (Giống trang chính thức)
   ========================================================================== */
.svtd-mobile-topbar,
.svtd-mobile-backdrop,
.svtd-drawer-head {
    display: none;
}

@media (max-width: 992px) {
    /* Ẩn hiển thị Header lớn của Desktop nhưng vẫn giữ thẻ H1 trong DOM cho Googlebot */
    .svtd-header {
        position: absolute !important;
        width: 1px !important;
        height: 1px !important;
        padding: 0 !important;
        margin: -1px !important;
        overflow: hidden !important;
        clip: rect(0, 0, 0, 0) !important;
        white-space: nowrap !important;
        border: 0 !important;
    }

    /* Thanh Topbar Mobile gọn gàng (#005992) giống hệt trang chính thức */
    .svtd-mobile-topbar {
        display: block;
        background: var(--vcs-blue);
        color: #ffffff;
        position: sticky;
        top: 0;
        z-index: 1010;
        border-bottom: 2px solid var(--vcs-diamond-amber);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
    }

    .svtd-mobile-topbar-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 54px;
        padding: 0 10px;
    }

    .svtd-mobile-left {
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .svtd-mobile-menu-btn {
        background: transparent;
        border: none;
        color: #ffffff;
        width: 40px;
        height: 40px;
        border-radius: var(--radius-sm);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        padding: 0;
    }

    .svtd-mobile-menu-btn:active,
    .svtd-mobile-menu-btn:hover {
        background: rgba(255, 255, 255, 0.14);
    }

    .svtd-mobile-logo {
        display: inline-flex;
        align-items: center;
    }

    .svtd-mobile-logo img {
        height: 40px;
        width: auto;
        object-fit: contain;
        display: block;
    }

    .svtd-mobile-actions {
        display: flex;
        align-items: center;
        gap: 2px;
    }

    .svtd-mobile-icon-btn {
        background: transparent;
        border: none;
        color: rgba(255, 255, 255, 0.92) !important;
        width: 38px;
        height: 38px;
        border-radius: var(--radius-sm);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        padding: 0;
        transition: background 0.15s, color 0.15s;
    }

    .svtd-mobile-icon-btn:hover,
    .svtd-mobile-icon-btn:active {
        background: rgba(255, 255, 255, 0.16);
        color: #ffffff !important;
    }

    /* Khung tìm kiếm trượt xuống khi bấm icon kính lúp */
    .svtd-mobile-search-panel {
        display: none;
        background: var(--vcs-blue-dark);
        padding: 10px 12px;
        border-top: 1px solid rgba(255, 255, 255, 0.14);
    }

    .svtd-mobile-search-panel.is-open {
        display: block;
    }

    /* Lớp phủ mờ khi mở Ngăn kéo Menu */
    .svtd-mobile-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.55);
        z-index: 1015;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.22s ease, visibility 0.22s ease;
    }

    .svtd-mobile-backdrop.is-open {
        opacity: 1;
        visibility: visible;
    }

    /* Biến <nav class="svtd-nav"> thành Ngăn kéo Off-Canvas trượt từ bên trái */
    .svtd-nav {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 295px;
        max-width: 84vw;
        background: #003d66;
        z-index: 1020;
        border-bottom: none;
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.25);
        transform: translateX(-105%);
        transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
        display: flex;
        flex-direction: column;
    }

    .svtd-nav.is-open {
        transform: translateX(0);
    }

    .svtd-drawer-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        background: var(--vcs-blue);
        color: #ffffff;
        padding: 12px 14px;
        border-bottom: 3px solid var(--vcs-diamond-amber);
        flex-shrink: 0;
    }

    .svtd-drawer-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        color: #ffffff !important;
        font-weight: 700;
        font-size: 14px;
        text-transform: uppercase;
    }

    .svtd-drawer-brand img {
        height: 36px;
        width: auto;
        object-fit: contain;
    }

    .svtd-drawer-close {
        background: rgba(255, 255, 255, 0.15);
        border: none;
        color: #ffffff;
        width: 32px;
        height: 32px;
        border-radius: var(--radius-sm);
        font-size: 16px;
        font-weight: 700;
        cursor: pointer;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .svtd-nav-inner {
        padding: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    /* Đưa cụm nút Đăng nhập / Đăng ký lên ngay đầu Ngăn kéo Menu */
    .svtd-nav-auth {
        order: -1;
        margin: 0;
        padding: 12px 14px;
        background: rgba(0, 0, 0, 0.18);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }

    .svtd-nav-auth .svtd-btn-auth {
        flex: 1;
        justify-content: center;
        padding: 8px 10px;
        font-size: 13px;
    }

    .svtd-nav-list {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
    }

    .svtd-nav-item {
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .svtd-nav-link {
        width: 100%;
        justify-content: space-between;
        padding: 13px 16px;
        font-size: 14px;
        border-bottom: none;
        margin-bottom: 0;
        border-left: 3px solid transparent;
    }

    .svtd-nav-link:hover,
    .svtd-nav-item:hover > .svtd-nav-link,
    .svtd-nav-link.active {
        border-left-color: var(--vcs-diamond-amber);
    }

    .svtd-nav-dropdown {
        position: static;
        border: none;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 0;
        box-shadow: none;
        background: #00314f;
        padding: 4px 0;
        display: none;
    }

    .svtd-nav-item:hover .svtd-nav-dropdown {
        display: none;
    }

    .svtd-nav-item.sub-open .svtd-nav-dropdown {
        display: block;
    }

    .svtd-nav-item.sub-open > .svtd-nav-link {
        color: var(--vcs-diamond-amber);
        background: rgba(255, 255, 255, 0.06);
    }

    .svtd-nav-dropdown li a {
        padding: 10px 16px 10px 26px;
        font-size: 13px;
        color: rgba(255, 255, 255, 0.82);
    }

    .svtd-nav-dropdown li a:hover {
        background: rgba(255, 255, 255, 0.08);
        color: #ffffff;
    }

    .svtd-grid {
        grid-template-columns: 1fr;
    }

    .svtd-footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .svtd-main-wrap {
        padding: 12px 0 32px;
    }

    /* Tối ưu dòng Chuyên mục trên điện thoại giống trang chính thức (Hiện cả số chủ đề + bài mới nhất) */
    .svtd-forum-row {
        grid-template-columns: 36px minmax(0, 1fr);
        gap: 10px;
        padding: 12px 12px;
        align-items: flex-start;
    }

    .svtd-forum-icon {
        width: 34px;
        height: 34px;
        margin-top: 2px;
    }

    .svtd-forum-stat {
        grid-column: 2;
        text-align: left;
        display: inline-flex;
        align-items: baseline;
        gap: 5px;
        margin-top: -4px;
    }

    .svtd-forum-stat .num {
        font-size: 12.5px;
    }

    .svtd-forum-stat .lbl {
        font-size: 12px;
        text-transform: none;
    }

    .svtd-forum-latest {
        display: block;
        grid-column: 2;
        border-left: none;
        padding-left: 0;
        margin-top: -4px;
    }

    .svtd-latest-row {
        grid-template-columns: 1fr;
        gap: 6px;
    }
    .svtd-latest-stats {
        text-align: left;
        flex-direction: row;
        gap: 12px;
    }
    .svtd-thread-list-head {
        display: none;
    }
    .svtd-thread-item {
        grid-template-columns: 82px minmax(0, 1fr);
        gap: 10px;
        padding: 10px 12px;
    }
    .svtd-thread-thumb {
        width: 82px;
        height: 56px;
    }
    .svtd-thread-stats,
    .svtd-thread-author-col {
        display: none;
    }
    .svtd-thread-main h2 {
        font-size: 13.5px;
    }
    .svtd-footer-grid {
        grid-template-columns: 1fr;
    }
}


/* ==========================================================================
   QUẢNG CÁO (AdSense) — tách biệt rõ với nội dung, giữ chỗ chống nhảy layout
   ========================================================================== */
.svtd-ad {
    clear: both;
    margin: 24px auto;
    text-align: center;
    max-width: 100%;
    overflow: hidden;
}

/* Thu gọn hoàn toàn khi Google không có quảng cáo để hiển thị */
.svtd-ad:has(ins.adsbygoogle[data-ad-status="unfilled"]),
.svtd-ad:has(ins.adsbygoogle:empty) {
    margin: 0;
    padding: 0;
}

.svtd-ad-label {
    font-size: 10.5px;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    color: #94a3b8;
    margin-bottom: 6px;
    line-height: 1;
}

.svtd-ad ins.adsbygoogle { margin: 0 auto; }
.svtd-ad ins.adsbygoogle[data-ad-status="unfilled"] { display: none !important; }

.svtd-post-content .svtd-ad { margin: 28px 0; }
.svtd-thread-list .svtd-ad,
.svtd-ad--archive_infeed { grid-column: 1 / -1; margin: 0; padding: 12px; border-top: none; }

.svtd-sidebar-sticky {
    position: sticky;
    top: 70px;
}

.svtd-ad--sidebar_sticky { border: none; margin: 0 0 20px; }

.svtd-ad--ph .svtd-ad-ph {
    border: 2px dashed #cbd5e1;
    background: #f8fafc;
    color: #475569;
    font-weight: 600;
    font-size: 13px;
    padding: 34px 12px;
    border-radius: 6px;
}

.svtd-ad--ph .svtd-ad-ph small {
    display: block;
    font-weight: 400;
    color: #94a3b8;
    margin-top: 4px;
}

@media (max-width: 992px) {
    .svtd-sidebar-sticky { display: none; }
    .svtd-ad { margin: 18px auto; }
}

/* Chặn các thành phần tự sinh trôi nổi của Google Auto Ads & Ad Intents ngoài ý muốn */
.google-auto-placed,
ins.adsbygoogle[data-anchor-status],
ins.adsbygoogle[data-ad-format="autorelaxed"],
iframe[id^="aswift_"][id*="anchor"],
#google-ad-intent-container,
.ad-intent-chip,
[aria-label="Google Ad Intent"],
div[id*="google_ads_iframe"][id*="ad_intent"] {
    display: none !important;
}



/* ==========================================================================
   BẢNG & NỘI DUNG CHUYỂN TỪ BBCODE XENFORO
   ========================================================================== */
.svtd-table-wrap {
    width: 100%;
    overflow-x: auto;
    margin: 14px 0;
    -webkit-overflow-scrolling: touch;
}

.svtd-bb-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.svtd-bb-table td,
.svtd-bb-table th {
    border: 1px solid #e2e8f0;
    padding: 8px 10px;
    vertical-align: top;
}

.svtd-bb-table th { background: #f1f5f9; font-weight: 700; }
.svtd-bb-table p { margin: 0 0 6px; }
.svtd-bb-table p:last-child { margin-bottom: 0; }

.svtd-embed { position: relative; padding-top: 56.25%; margin: 14px 0; }
.svtd-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }


/* ==========================================================================
   TRANG TẢI FILE ĐÍNH KÈM & ĐẾM NGƯỢC TRUNG GIAN (8 GIÂY)
   ========================================================================== */
.svtd-download-page {
    padding: 10px 0 30px;
}

.svtd-download-wrapper {
    margin-top: 8px;
}

.svtd-dl-page-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.svtd-dl-page-title span {
    color: var(--vcs-blue);
    word-break: break-all;
}

.svtd-dl-layout {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    justify-content: center;
}

.svtd-dl-ad-col {
    width: 300px;
    flex-shrink: 0;
}

.svtd-dl-ad-box {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px;
    min-height: 250px;
    text-align: center;
}

.svtd-dl-center-col {
    flex: 1;
    max-width: 540px;
    min-width: 300px;
}

.svtd-download-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px 20px;
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.svtd-file-type-icon {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 6px;
}

.svtd-svg-file {
    width: 48px;
    height: 56px;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.svtd-dl-filename {
    font-size: 16px;
    font-weight: 700;
    color: #1e293b;
    margin: 8px 0 6px;
    word-break: break-all;
    line-height: 1.4;
}

.svtd-dl-meta-badges {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}

.svtd-dl-filesize-badge,
.svtd-dl-count-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 12px;
    background: #f1f5f9;
    color: #64748b;
    font-size: 12.5px;
    border-radius: 20px;
}

.svtd-dl-count-badge {
    background: #e0f2fe;
    color: #0369a1;
    font-weight: 500;
}

.svtd-dl-count-badge strong {
    color: #0284c7;
    margin-left: 3px;
}

/* Khung Yêu Cầu Đăng Nhập cho Khách */
.svtd-dl-guest-box {
    border-top: 1px dashed var(--border-color);
    padding-top: 18px;
}

.svtd-dl-lock-icon {
    font-size: 38px;
    line-height: 1;
    margin-bottom: 8px;
}

.svtd-dl-guest-box h3 {
    color: #b91c1c;
    font-size: 17px;
    font-weight: 700;
    margin: 0 0 8px;
}

.svtd-dl-guest-desc {
    color: #475569;
    font-size: 13.5px;
    line-height: 1.5;
    margin: 0 0 10px;
}

.svtd-dl-guest-note {
    background: #f0f9ff;
    border: 1px solid #bae6fd;
    color: #0369a1;
    font-size: 13px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    margin: 0 0 18px;
}

.svtd-dl-guest-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.svtd-btn-dl-auth {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    font-size: 13.5px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: all 0.15s ease;
}

.svtd-btn-dl-login {
    background: var(--vcs-blue);
    color: #ffffff !important;
}

.svtd-btn-dl-login:hover {
    background: var(--vcs-blue-hover);
}

.svtd-btn-dl-register {
    background: var(--vcs-diamond-amber);
    color: #ffffff !important;
}

.svtd-btn-dl-register:hover {
    background: var(--vcs-amber-hover);
}

/* Khung Đếm Ngược cho Thành Viên Đã Đăng Nhập */
.svtd-dl-member-box {
    border-top: 1px dashed var(--border-color);
    padding-top: 16px;
}

.svtd-dl-greeting {
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    color: #065f46;
    font-size: 13.5px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
}

.svtd-dl-prompt {
    font-size: 14px;
    color: #475569;
    margin-bottom: 14px;
}

.svtd-dl-countdown-wrap {
    margin: 10px 0 16px;
}

.svtd-dl-count-num {
    font-size: 56px;
    font-weight: 800;
    color: var(--vcs-blue);
    line-height: 1;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.svtd-dl-count-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #94a3b8;
    margin-top: 4px;
}

.svtd-dl-action-wrap {
    margin: 18px 0;
}

.svtd-btn-dl-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 320px;
    padding: 13px 20px;
    font-size: 16px;
    font-weight: 700;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: all 0.2s ease;
    border: none;
}

.svtd-btn-dl-cta.is-waiting {
    background: #94a3b8;
    color: #ffffff;
    cursor: not-allowed;
    opacity: 0.85;
}

.svtd-btn-dl-cta.is-ready {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    color: #ffffff !important;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(34, 197, 94, 0.4);
    animation: svtdDlPulse 1.8s infinite;
}

.svtd-btn-dl-cta.is-ready:hover {
    background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
    transform: translateY(-1px);
}

@keyframes svtdDlPulse {
    0% { transform: scale(1); box-shadow: 0 4px 14px rgba(34, 197, 94, 0.4); }
    50% { transform: scale(1.02); box-shadow: 0 6px 20px rgba(34, 197, 94, 0.6); }
    100% { transform: scale(1); box-shadow: 0 4px 14px rgba(34, 197, 94, 0.4); }
}

/* Hộp liên kết chia sẻ */
.svtd-dl-share-box {
    margin-top: 18px;
    padding: 12px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-sm);
    text-align: left;
}

.svtd-dl-share-box label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: #64748b;
    margin-bottom: 5px;
}

.svtd-dl-share-input-wrap {
    display: flex;
    gap: 6px;
}

.svtd-dl-share-input-wrap input {
    flex: 1;
    padding: 6px 10px;
    font-size: 12px;
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-sm);
    background: #ffffff;
    color: #334155;
    outline: none;
}

.svtd-dl-share-input-wrap button {
    padding: 6px 12px;
    background: #e2e8f0;
    color: #334155;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
}

.svtd-dl-share-input-wrap button:hover {
    background: #cbd5e1;
}

.svtd-dl-copy-notice {
    font-size: 11.5px;
    color: #059669;
    font-weight: 600;
    margin-top: 5px;
}

.svtd-dl-bottom-ad {
    margin-top: 24px;
    text-align: center;
}

@media (max-width: 991px) {
    .svtd-dl-layout {
        flex-direction: column;
        align-items: stretch;
    }
    .svtd-dl-center-col {
        order: 1;
        max-width: 100%;
    }
    .svtd-dl-ad-left {
        order: 2;
        width: 100%;
    }
    .svtd-dl-ad-right {
        order: 3;
        width: 100%;
    }
}

/* ==========================================================================
   15. MỤC LỤC BÀI VIẾT TỰ ĐỘNG (TABLE OF CONTENTS - TOC)
   ========================================================================== */
html {
    scroll-behavior: smooth;
}

h1[id], h2[id], h3[id], h4[id] {
    scroll-margin-top: 75px;
}

.svtd-toc-container {
    background: #f8fafc;
    border: 1px solid #cbd5e1;
    border-left: 4px solid var(--vcs-blue);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    margin: 20px 0 26px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.svtd-toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 8px;
    border-bottom: 1px solid #e2e8f0;
}

.svtd-toc-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--vcs-blue-dark);
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.svtd-toc-icon {
    width: 17px;
    height: 17px;
    color: var(--vcs-blue);
}

.svtd-toc-toggle {
    background: none;
    border: none;
    color: var(--vcs-blue);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    padding: 2px 6px;
}

.svtd-toc-toggle:hover {
    text-decoration: underline;
}

.svtd-toc-list {
    margin-top: 10px;
}

.svtd-toc-list ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.svtd-toc-list li {
    margin-bottom: 6px;
    line-height: 1.5;
}

.svtd-toc-list li.svtd-toc-item-h3 {
    padding-left: 18px;
    position: relative;
}

.svtd-toc-list li.svtd-toc-item-h3::before {
    content: "•";
    position: absolute;
    left: 6px;
    color: #94a3b8;
}

.svtd-toc-list a {
    color: #334155;
    font-size: 14px;
    text-decoration: none;
    transition: color 0.15s;
}

.svtd-toc-list a:hover {
    color: var(--vcs-blue);
    text-decoration: underline;
}

/* ==========================================================================
   16. THANH TƯƠNG TÁC BÀI VIẾT, LƯU TRA CỨU & CHIA SẺ (INTERACTION BAR)
   ========================================================================== */
.svtd-interaction-bar {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-md);
    padding: 12px 18px;
    margin: 22px 0 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.svtd-interaction-actions,
.svtd-share-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.svtd-btn-reaction {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: #475569;
    transition: all 0.15s ease;
}

.svtd-btn-reaction:hover {
    background: #f1f5f9;
    color: var(--vcs-blue);
    border-color: var(--vcs-blue);
}

.svtd-btn-reaction.is-active {
    background: #e0f2fe;
    color: #0284c7;
    border-color: #0284c7;
}

.svtd-btn-bookmark.is-active {
    background: #fef3c7;
    color: #b45309;
    border-color: #f59e0b;
}

.svtd-icon-action {
    width: 16px;
    height: 16px;
}

.svtd-action-badge {
    background: #0284c7;
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    padding: 1px 6px;
    border-radius: 10px;
    margin-left: 2px;
}

.svtd-action-badge:empty {
    display: none;
}

.svtd-share-label {
    font-size: 12.5px;
    font-weight: 600;
    color: #64748b;
    margin-right: 4px;
}

.svtd-btn-share {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    text-decoration: none !important;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s ease;
}

.svtd-btn-copy {
    background: #ffffff;
    border-color: #cbd5e1;
    color: #334155;
}

.svtd-btn-copy:hover {
    background: #f1f5f9;
    color: var(--vcs-blue);
}

.svtd-btn-zalo {
    background: #0068ff;
    color: #ffffff !important;
}

.svtd-btn-zalo:hover {
    background: #0054cc;
}

.svtd-zalo-badge {
    font-weight: 800;
    letter-spacing: -0.5px;
}

.svtd-btn-fb {
    background: #1877f2;
    color: #ffffff !important;
}

.svtd-btn-fb:hover {
    background: #1464cc;
}

.svtd-icon-share {
    width: 14px;
    height: 14px;
}

/* Nút Trích dẫn trong bình luận */
.svtd-quote-btn {
    color: #0284c7 !important;
    font-size: 11.5px;
    font-weight: 600;
    text-decoration: none;
    margin-left: 10px;
    padding: 1.5px 6px;
    background: #f0f9ff;
    border-radius: 3px;
    border: 1px solid #e0f2fe;
}

.svtd-quote-btn:hover {
    background: #0284c7;
    color: #ffffff !important;
    border-color: #0284c7;
}

/* Toast thông báo */
.svtd-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: #1e293b;
    color: #ffffff;
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 13.5px;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);
    z-index: 99999;
    opacity: 0;
    transition: all 0.25s ease;
    pointer-events: none;
}

.svtd-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

@media (max-width: 640px) {
    .svtd-interaction-bar {
        flex-direction: column;
        align-items: stretch;
    }
    .svtd-interaction-actions,
    .svtd-share-actions {
        justify-content: space-between;
        width: 100%;
    }
    .svtd-btn-reaction {
        flex: 1;
        justify-content: center;
    }
}
.svtd-callout {
    background: #f0f7ff;
    border-left: 4px solid var(--vcs-blue);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    margin: 20px 0;
    font-size: 14.5px;
    line-height: 1.6;
    color: #1e3a8a;
}

.svtd-callout.callout-warning {
    background: #fffbeb;
    border-left-color: #f59e0b;
    color: #92400e;
}

.svtd-download-card {
    background: #ffffff;
    border: 1.5px solid #005992;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 14px rgba(0, 89, 146, 0.08);
    margin: 28px 0;
    overflow: hidden;
}

.svtd-download-card-header {
    background: linear-gradient(135deg, #005992 0%, #00436e 100%);
    color: #ffffff;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.svtd-download-card-header h3 {
    margin: 0;
    font-size: 16.5px;
    font-weight: 700;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 8px;
}

.svtd-download-card-body {
    padding: 18px 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 14px;
    background: #f8fafc;
}

.svtd-download-item {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    transition: all 0.2s ease;
}

.svtd-download-item:hover {
    border-color: var(--vcs-blue);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
    transform: translateY(-1px);
}

.svtd-download-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.svtd-dl-icon {
    width: 38px;
    height: 44px;
    flex-shrink: 0;
}

.svtd-dl-meta strong {
    display: block;
    font-size: 13.5px;
    color: #0f172a;
    line-height: 1.35;
    margin-bottom: 3px;
}

.svtd-dl-meta span {
    font-size: 12px;
    color: #64748b;
}

.svtd-btn-dl {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 700;
    text-decoration: none !important;
    white-space: nowrap;
    transition: background 0.15s;
}

.svtd-btn-dl-pdf {
    background: #dc2626;
    color: #ffffff !important;
}

.svtd-btn-dl-pdf:hover {
    background: #b91c1c;
}

.svtd-btn-dl-excel {
    background: #16a34a;
    color: #ffffff !important;
}

.svtd-btn-dl-excel:hover {
    background: #15803d;
}

@media (max-width: 640px) {
    .svtd-download-card-body {
        grid-template-columns: 1fr;
        padding: 12px;
        gap: 10px;
    }
    .svtd-download-item {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    .svtd-btn-dl {
        justify-content: center;
        width: 100%;
        text-align: center;
    }
}

.svtd-data-table-wrap {
    overflow-x: auto;
    margin: 22px 0;
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-sm);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.svtd-data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
    background: #ffffff;
    min-width: 650px;
}

.svtd-data-table th {
    background: #005992;
    color: #ffffff;
    font-weight: 700;
    padding: 10px 12px;
    text-align: left;
    font-size: 13px;
    border-bottom: 2px solid #00436e;
    white-space: nowrap;
}

.svtd-data-table td {
    padding: 9px 12px;
    border-bottom: 1px solid #e2e8f0;
    color: #1e293b;
}

.svtd-data-table tr:nth-child(even) td {
    background: #f8fafc;
}

.svtd-data-table tr:hover td {
    background: #eef6ff;
}

.svtd-data-table .col-center {
    text-align: center;
}

.svtd-data-table .col-right {
    text-align: right;
}

.svtd-data-table .col-price {
    text-align: right;
    font-weight: 700;
    color: #b91c1c;
}

.svtd-data-table .col-rate {
    text-align: right;
    font-weight: 700;
    color: #0284c7;
}