/**
 * Design System 2.0 - VĂN CHƯƠNG ĐIỀN TRÌ (vanchuongdientri.vn)
 * Kiến trúc Bảo Tàng Số Văn Học • Full-Bleed 100% • 4 Bảng Màu Giao Diện Premium
 */

/* =======================================================
   1. BẢNG MÀU GIAO DIỆN ĐA SẮC THÁI (PREMIUM COLOR THEMES)
   ======================================================= */
:root,
html[data-tdk-theme="sepia"] {
  --tdk-bg-primary: #F8F4EA;
  --tdk-bg-secondary: #EFE8D8;
  --tdk-bg-card: #FFFFFF;
  --tdk-bg-subtle: #FAF7EE;
  --tdk-text-primary: #26221E;
  --tdk-text-secondary: #5C544B;
  --tdk-accent-red: #8D2D24;
  --tdk-accent-green: #4A5D43;
  --tdk-accent-gold: #D4AF37;
  --tdk-border: #D8CFC0;
  --tdk-header-bg: #FAF7EE;
  --tdk-shadow-soft: 0 10px 30px rgba(38, 34, 30, 0.07);
  --tdk-shadow-hover: 0 18px 42px rgba(141, 45, 36, 0.14);
  --tdk-font-heading: 'Lora', Georgia, serif;
  --tdk-font-body: 'Noto Serif', Georgia, serif;
  --tdk-font-ui: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Giao diện 2: Ngọc Lục Bảo Hoàng Gia (Royal Emerald) */
html[data-tdk-theme="emerald"] {
  --tdk-bg-primary: #F2F6F3;
  --tdk-bg-secondary: #E4EDE7;
  --tdk-bg-card: #FFFFFF;
  --tdk-bg-subtle: #F7FAF8;
  --tdk-text-primary: #16261E;
  --tdk-text-secondary: #42584D;
  --tdk-accent-red: #1B4332;
  --tdk-accent-green: #8B4513;
  --tdk-accent-gold: #C59B27;
  --tdk-border: #C2D4C9;
  --tdk-header-bg: #F5F9F6;
  --tdk-shadow-soft: 0 10px 30px rgba(22, 38, 30, 0.07);
  --tdk-shadow-hover: 0 18px 42px rgba(27, 67, 50, 0.15);
}

/* Giao diện 3: Cổ Thư Trầm Mặc (Antique Amber) */
html[data-tdk-theme="amber"] {
  --tdk-bg-primary: #EFE6D5;
  --tdk-bg-secondary: #E4D7C0;
  --tdk-bg-card: #FAF5EB;
  --tdk-bg-subtle: #F4ECE0;
  --tdk-text-primary: #2B1D12;
  --tdk-text-secondary: #5C4736;
  --tdk-accent-red: #6E2C11;
  --tdk-accent-green: #7A4E24;
  --tdk-accent-gold: #C28E26;
  --tdk-border: #CDBCA0;
  --tdk-header-bg: #F4ECE0;
  --tdk-shadow-soft: 0 10px 30px rgba(43, 29, 18, 0.09);
  --tdk-shadow-hover: 0 18px 42px rgba(110, 44, 17, 0.16);
}

/* Giao diện 4: Đêm Thi Ca Thượng Lưu (Midnight Luxury Dark) */
html[data-tdk-theme="midnight"] {
  --tdk-bg-primary: #121418;
  --tdk-bg-secondary: #181B21;
  --tdk-bg-card: #1E222A;
  --tdk-bg-subtle: #16191F;
  --tdk-text-primary: #F2ECDC;
  --tdk-text-secondary: #B5AEA0;
  --tdk-accent-red: #E5BE53;
  --tdk-accent-green: #E07A68;
  --tdk-accent-gold: #D4AF37;
  --tdk-border: #2E3440;
  --tdk-header-bg: #15181E;
  --tdk-shadow-soft: 0 12px 34px rgba(0, 0, 0, 0.45);
  --tdk-shadow-hover: 0 18px 45px rgba(212, 175, 55, 0.18);
}

/* Đồng bộ biến màu vào các thành phần có inline background sáng khi ở chế độ Midnight Dark */
html[data-tdk-theme="midnight"] section[style*="background"],
html[data-tdk-theme="midnight"] div[style*="background: #FFFFFF"],
html[data-tdk-theme="midnight"] div[style*="background: #FAF7EE"],
html[data-tdk-theme="midnight"] div[style*="background: #FDFBF7"],
html[data-tdk-theme="midnight"] div[style*="background: #F4EFE2"],
html[data-tdk-theme="midnight"] div[style*="background: #F1ECE0"] {
  background-color: var(--tdk-bg-card) !important;
  color: var(--tdk-text-primary) !important;
  border-color: var(--tdk-border) !important;
}

html[data-tdk-theme="midnight"] .tdk-home-hero,
html[data-tdk-theme="midnight"] .tdk-section-alt {
  background: var(--tdk-bg-secondary) !important;
}

/* =======================================================
   2. CẤU TRÚC TRÀN VIỀN 100% (FULL-BLEED ARCHITECTURE)
   ======================================================= */
html {
  background-color: var(--tdk-bg-primary) !important;
  color: var(--tdk-text-primary) !important;
  margin: 0 !important;
  padding: 0 !important;
  width: 100% !important;
}

body {
  background-color: var(--tdk-bg-primary) !important;
  color: var(--tdk-text-primary) !important;
  font-family: var(--tdk-font-body);
  margin: 0 !important;
  padding: 0 !important;
  width: 100% !important;
  max-width: 100% !important;
  overflow-x: hidden !important;
  transition: background-color 0.35s ease, color 0.35s ease;
}

#gf-wrapper,
#wrapper-content,
#primary-content,
.gf-skin-light,
.gf-skin-dark {
  background-color: var(--tdk-bg-primary) !important;
  width: 100% !important;
  max-width: 100% !important;
  margin: 0 !important;
  padding: 0 !important;
}

/* Đệm chiều cao cho Fixed Sticky Header (86px) */
#gf-wrapper {
  padding-top: 86px !important;
}
@media (max-width: 991px) {
  #gf-wrapper {
    padding-top: 72px !important;
  }
}

/* Loại bỏ padding mặc định của theme ở trang chủ và các trang custom */
.page #primary-content,
.post-type-archive #primary-content,
.single-tho #primary-content,
.single-tac-pham #primary-content {
  padding-top: 0 !important;
  padding-bottom: 0 !important;
}

.container,
.tdk-wide-container {
  max-width: 1400px !important;
  width: 100% !important;
  margin-left: auto !important;
  margin-right: auto !important;
  padding-left: 32px !important;
  padding-right: 32px !important;
}

/* Các trang Landing tràn viền (không có sidebar): mở rộng wrapper 100% full-bleed */
#primary-content:not(.gsf-sidebar-right) > .container {
  max-width: 100% !important;
  width: 100% !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
}
#primary-content:not(.gsf-sidebar-right) > .container > .row {
  margin-left: 0 !important;
  margin-right: 0 !important;
}
#primary-content:not(.gsf-sidebar-right) > .container > .row > .col-lg-12 {
  padding-left: 0 !important;
  padding-right: 0 !important;
  max-width: 100% !important;
  flex: 0 0 100% !important;
}

/* Các trang có Sidebar bên phải (.gsf-sidebar-right): Khung 1440px cân đối 71.5% - 28.5% */
#primary-content.gsf-sidebar-right > .container {
  max-width: 1440px !important;
  width: 96% !important;
  padding-top: 44px !important;
  padding-bottom: 80px !important;
}
#primary-content.gsf-sidebar-right > .container > .row {
  display: flex !important;
  flex-wrap: wrap !important;
  align-items: stretch !important;
  margin-left: -18px !important;
  margin-right: -18px !important;
}
#primary-content.gsf-sidebar-right .col-lg-8 > .container,
#primary-content.gsf-sidebar-right .col-lg-9 > .container {
  max-width: 100% !important;
  width: 100% !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
}
@media (min-width: 992px) {
  #primary-content.gsf-sidebar-right > .container > .row > .col-lg-8,
  #primary-content.gsf-sidebar-right > .container > .row > .col-lg-9 {
    flex: 0 0 71.5% !important;
    max-width: 71.5% !important;
    padding-left: 18px !important;
    padding-right: 18px !important;
  }
  #primary-content.gsf-sidebar-right > .container > .row > .primary-sidebar {
    flex: 0 0 28.5% !important;
    max-width: 28.5% !important;
    padding-left: 18px !important;
    padding-right: 18px !important;
  }
}

@media (max-width: 768px) {
  .container,
  .tdk-wide-container {
    padding-left: 18px !important;
    padding-right: 18px !important;
  }
}

h1, h2, h3, h4, h5, h6, .site-title, .entry-title {
  font-family: var(--tdk-font-heading) !important;
  color: var(--tdk-text-primary);
}

/* =======================================================
   3. FIXED STICKY HEADER TRÀN VIỀN 1 DÒNG & LOGO LỚN RÕ NÉT
   ======================================================= */
header.main-header,
.main-header,
.header-wrap,
.header-sticky,
.mobile-header,
.mobile-header-wrap {
  background: var(--tdk-header-bg) !important;
  background-color: var(--tdk-header-bg) !important;
  border-bottom: 2px solid var(--tdk-accent-gold) !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06) !important;
  width: 100% !important;
  max-width: 100% !important;
  transition: background-color 0.3s ease, box-shadow 0.3s ease !important;
}

/* Khóa cứng Header bằng position: fixed để luôn bám dính 100% khi lăn chuột */
header.main-header,
header.mobile-header {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  width: 100% !important;
  z-index: 99990 !important;
}

body.admin-bar header.main-header,
body.admin-bar header.mobile-header {
  top: 32px !important;
}

header.main-header.tdk-header-scrolled,
.header-wrap.tdk-header-scrolled {
  box-shadow: 0 10px 32px rgba(28, 20, 14, 0.18) !important;
  backdrop-filter: blur(12px);
}

/* Đồng nhất hoàn toàn màu nền giữa vùng Logo - vùng Menu - vùng Tìm kiếm */
.main-header .header-inner,
.main-header .logo-header,
.main-header .primary-menu,
.main-header .primary-menu-inner,
.main-header .main-menu,
.main-header .header-customize,
.main-header .header-customize-nav,
.main-header .header-customize-item {
  background: transparent !important;
  background-color: transparent !important;
  border: none !important;
}

.header-wrap .container,
.header-wrap .container-fluid,
.header-wrap .tdk-header-fluid {
  max-width: 100% !important;
  width: 100% !important;
  padding-left: 34px !important;
  padding-right: 34px !important;
}

.header-inner,
.tdk-header-inner-full {
  display: flex !important;
  flex-wrap: nowrap !important;
  justify-content: space-between !important;
  align-items: center !important;
  width: 100% !important;
  min-height: 84px !important;
  max-height: 86px !important;
  gap: 14px !important;
}

/* LOGO LỚN RÕ NÉT (INLINE SVG 64x64 + HTML BRAND TYPOGRAPHY) */
.logo-header,
.tdk-logo-header-custom {
  flex: 0 0 auto !important;
  min-width: max-content !important;
  max-height: none !important;
  height: auto !important;
  white-space: nowrap !important;
  margin-right: 12px !important;
  padding: 4px 0 !important;
}

.tdk-brand-logo-link {
  display: inline-flex !important;
  align-items: center !important;
  gap: 14px !important;
  text-decoration: none !important;
  white-space: nowrap !important;
  padding: 2px 0 !important;
}

.tdk-brand-seal-wrap {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  flex-shrink: 0 !important;
  width: 64px !important;
  height: 64px !important;
  filter: drop-shadow(0 3px 8px rgba(38, 22, 14, 0.22));
  transition: transform 0.25s ease !important;
}

.tdk-brand-seal-svg {
  width: 64px !important;
  height: 64px !important;
  min-width: 64px !important;
  min-height: 64px !important;
  display: block !important;
}

.tdk-brand-logo-link:hover .tdk-brand-seal-wrap {
  transform: scale(1.05);
}

.tdk-brand-text-col {
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
  align-items: flex-start !important;
  line-height: 1.15 !important;
}

.tdk-brand-name {
  font-family: var(--tdk-font-heading) !important;
  font-size: 24px !important;
  font-weight: 800 !important;
  color: var(--tdk-accent-red) !important;
  letter-spacing: 0.4px !important;
  text-transform: none !important;
  line-height: 1.15 !important;
  display: block !important;
}

.tdk-brand-rule {
  display: flex !important;
  align-items: center !important;
  width: 100% !important;
  height: 1.5px !important;
  background: linear-gradient(90deg, var(--tdk-accent-gold) 0%, var(--tdk-border) 85%, transparent 100%) !important;
  margin: 4px 0 4px 0 !important;
  position: relative !important;
}

.tdk-brand-diamond {
  width: 6px !important;
  height: 6px !important;
  background: var(--tdk-accent-gold) !important;
  transform: rotate(45deg) !important;
  display: inline-block !important;
  margin-left: 38% !important;
}

.tdk-brand-tagline {
  font-family: var(--tdk-font-ui) !important;
  font-size: 11.5px !important;
  font-weight: 700 !important;
  color: var(--tdk-accent-green) !important;
  letter-spacing: 0.8px !important;
  text-transform: none !important;
  line-height: 1.2 !important;
  display: block !important;
}

.tdk-brand-logo-mobile .tdk-brand-seal-wrap,
.tdk-brand-logo-mobile .tdk-brand-seal-svg {
  width: 48px !important;
  height: 48px !important;
  min-width: 48px !important;
  min-height: 48px !important;
}

.tdk-brand-logo-mobile .tdk-brand-name {
  font-size: 18px !important;
}

.tdk-brand-logo-mobile .tdk-brand-tagline {
  font-size: 9.5px !important;
  letter-spacing: 1.1px !important;
}

.site-branding-text {
  display: none !important;
}

.primary-menu {
  flex: 1 1 auto !important;
  display: flex !important;
  flex-wrap: nowrap !important;
  justify-content: flex-end !important;
  align-items: center !important;
  min-width: 0 !important;
}

.primary-menu-inner {
  display: flex !important;
  flex-wrap: nowrap !important;
  justify-content: flex-end !important;
  align-items: center !important;
  width: 100% !important;
}

.primary-menu .main-menu,
ul#main-menu {
  display: flex !important;
  flex-wrap: nowrap !important;
  align-items: center !important;
  justify-content: flex-end !important;
  white-space: nowrap !important;
  margin: 0 !important;
  padding: 0 !important;
  list-style: none !important;
}

.primary-menu .main-menu > li {
  position: relative !important;
  white-space: nowrap !important;
  flex-shrink: 0 !important;
  margin: 0 !important;
}

.primary-menu .main-menu > li > a {
  font-family: var(--tdk-font-ui) !important;
  font-size: 14px !important;
  font-weight: 700 !important;
  text-transform: none !important;
  letter-spacing: 0.2px !important;
  color: var(--tdk-text-primary) !important;
  padding: 14px 13px !important;
  white-space: nowrap !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 4px !important;
  transition: all 0.2s ease !important;
  position: relative !important;
}

@media (max-width: 1380px) and (min-width: 992px) {
  .tdk-brand-name {
    font-size: 21px !important;
  }
  .tdk-brand-seal-wrap,
  .tdk-brand-seal-svg {
    width: 56px !important;
    height: 56px !important;
    min-width: 56px !important;
    min-height: 56px !important;
  }
  .primary-menu .main-menu > li > a {
    font-size: 12.5px !important;
    padding: 12px 10px !important;
  }
}

.primary-menu .main-menu > li > a:hover,
.primary-menu .main-menu > li.current-menu-item > a,
.primary-menu .main-menu > li.current-menu-parent > a {
  color: var(--tdk-accent-red) !important;
}

/* Menu con thả xuống (Dropdown Sub-menu) cho 6 chuyên mục */
.primary-menu .main-menu > li > ul.sub-menu {
  position: absolute !important;
  top: 100% !important;
  left: 0 !important;
  min-width: 245px !important;
  background: var(--tdk-bg-card) !important;
  border: 1px solid var(--tdk-border) !important;
  border-top: 3px solid var(--tdk-accent-red) !important;
  border-radius: 0 0 6px 6px !important;
  box-shadow: 0 16px 38px rgba(24, 18, 12, 0.16) !important;
  padding: 8px 0 !important;
  margin: 0 !important;
  list-style: none !important;
  z-index: 9999 !important;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.22s ease !important;
}

.primary-menu .main-menu > li:hover > ul.sub-menu {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateY(0) !important;
}

.primary-menu .main-menu > li > ul.sub-menu > li {
  display: block !important;
  margin: 0 !important;
  padding: 0 !important;
  border-bottom: 1px dashed var(--tdk-border);
}

.primary-menu .main-menu > li > ul.sub-menu > li:last-child {
  border-bottom: none;
}

.primary-menu .main-menu > li > ul.sub-menu > li > a {
  display: block !important;
  padding: 11px 18px !important;
  font-family: var(--tdk-font-ui) !important;
  font-size: 13.5px !important;
  font-weight: 600 !important;
  color: var(--tdk-text-primary) !important;
  text-decoration: none !important;
  text-transform: none !important;
  letter-spacing: 0.2px !important;
  transition: all 0.2s ease !important;
}

.primary-menu .main-menu > li > ul.sub-menu > li > a:hover {
  background: var(--tdk-bg-subtle) !important;
  color: var(--tdk-accent-red) !important;
  padding-left: 23px !important;
}

/* =======================================================
   3B. HOMEPAGE HERO SLIDER (4 SLIDES VỪA KHÍT KHUNG MÀN HÌNH ĐẦU TIÊN)
   ======================================================= */
.tdk-hero-slider-section {
  position: relative !important;
  width: 100% !important;
  height: calc(100vh - 86px) !important;
  min-height: 495px !important;
  max-height: 630px !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: space-between !important;
  overflow: hidden !important;
  border-bottom: 3px solid #D4AF37 !important;
  background: #140F0B !important;
  padding: 0 !important;
}

.tdk-hero-slides-viewport {
  position: relative !important;
  flex: 1 1 auto !important;
  width: 100% !important;
  height: 100% !important;
  overflow: hidden !important;
}

.tdk-hero-slide {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  background-size: cover !important;
  background-position: center center !important;
  display: flex !important;
  align-items: center !important;
  opacity: 0 !important;
  visibility: hidden !important;
  transition: opacity 0.65s ease, visibility 0.65s ease !important;
  z-index: 1 !important;
  padding: 18px 0 !important;
}

.tdk-hero-slide.active {
  opacity: 1 !important;
  visibility: visible !important;
  z-index: 2 !important;
}

.tdk-hero-slide-container {
  width: 100% !important;
  max-width: 1380px !important;
  margin: 0 auto !important;
  padding: 0 54px !important;
}

.tdk-hero-grid {
  display: grid !important;
  grid-template-columns: 1.28fr 0.92fr !important;
  gap: 38px !important;
  align-items: center !important;
}

.tdk-hero-left {
  color: #FAF6EE !important;
}

.tdk-hero-pill {
  display: inline-flex !important;
  align-items: center !important;
  gap: 9px !important;
  background: rgba(212, 175, 55, 0.16) !important;
  border: 1px solid rgba(212, 175, 55, 0.55) !important;
  padding: 4px 14px !important;
  border-radius: 30px !important;
  margin-bottom: 10px !important;
}

.tdk-hero-pill img {
  width: 22px !important;
  height: 22px !important;
  border-radius: 50% !important;
  border: 1px solid #D4AF37 !important;
}

.tdk-hero-pill span {
  font-family: var(--tdk-font-ui) !important;
  font-size: 12px !important;
  font-weight: 700 !important;
  text-transform: none !important;
  letter-spacing: 0.6px !important;
  color: #F3D266 !important;
}

.tdk-hero-main-heading {
  font-family: var(--tdk-font-heading) !important;
  font-size: clamp(30px, 3.3vw, 44px) !important;
  font-weight: 700 !important;
  color: #FFFDF9 !important;
  margin: 0 0 10px 0 !important;
  line-height: 1.15 !important;
  text-shadow: 0 4px 18px rgba(0, 0, 0, 0.65) !important;
}

.tdk-hero-sub-heading {
  display: block !important;
  font-size: clamp(16px, 1.65vw, 22px) !important;
  color: #E5C158 !important;
  font-weight: 400 !important;
  font-style: italic !important;
  margin-top: 5px !important;
  line-height: 1.3 !important;
}

.tdk-hero-lead {
  font-size: 15px !important;
  line-height: 1.62 !important;
  color: #E6DEC8 !important;
  margin: 0 0 12px 0 !important;
  max-width: 680px !important;
}

.tdk-hero-quote-card {
  background: rgba(18, 14, 10, 0.72) !important;
  border-left: 3.5px solid #D4AF37 !important;
  padding: 10px 16px !important;
  border-radius: 4px !important;
  margin-bottom: 16px !important;
  backdrop-filter: blur(6px);
  max-width: 660px !important;
}

.tdk-hero-quote-text {
  font-family: var(--tdk-font-body) !important;
  font-size: 15px !important;
  font-style: italic !important;
  line-height: 1.55 !important;
  color: #FAF3E3 !important;
}

.tdk-hero-quote-cite {
  font-family: var(--tdk-font-ui) !important;
  font-size: 11.5px !important;
  color: #D4AF37 !important;
  text-transform: none !important;
  letter-spacing: 0.4px !important;
  margin-top: 4px !important;
  font-weight: 600 !important;
}

.tdk-hero-actions {
  display: flex !important;
  gap: 10px !important;
  flex-wrap: wrap !important;
  align-items: center !important;
}

.tdk-hero-actions .tdk-btn-primary {
  padding: 10px 20px !important;
  font-size: 13px !important;
}

.tdk-btn-hero-ghost {
  display: inline-flex !important;
  align-items: center !important;
  gap: 6px !important;
  background: rgba(255, 255, 255, 0.1) !important;
  color: #FFFDF9 !important;
  border: 1px solid rgba(212, 175, 55, 0.55) !important;
  padding: 10px 18px !important;
  border-radius: 4px !important;
  font-family: var(--tdk-font-ui) !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  text-decoration: none !important;
  transition: all 0.2s ease !important;
}

.tdk-btn-hero-ghost:hover {
  background: rgba(212, 175, 55, 0.24) !important;
  border-color: #F3D266 !important;
  transform: translateY(-2px);
}

/* Cột Phải Hero: Khung Tranh / Ảnh Tư Liệu Gọn Trong Màn Hình */
.tdk-hero-right {
  display: flex !important;
  justify-content: center !important;
}

.tdk-hero-art-frame {
  background: #FAF6EC !important;
  padding: 12px !important;
  max-width: 365px !important;
  width: 100% !important;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.55) !important;
}

.tdk-hero-art-img {
  width: 100% !important;
  height: 310px !important;
  object-fit: contain !important;
  object-position: center center !important;
  background: radial-gradient(circle, #281F17 0%, #140F0B 100%) !important;
  border: 1px solid rgba(212, 175, 55, 0.35) !important;
  border-radius: 3px !important;
  display: block !important;
}

.tdk-hero-art-img.tdk-fit-cover {
  object-fit: cover !important;
}

.tdk-hero-art-caption {
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  margin-top: 8px !important;
  padding: 0 2px !important;
  font-family: var(--tdk-font-ui) !important;
  font-size: 12px !important;
  color: #3D352E !important;
  font-weight: 600 !important;
  font-style: italic !important;
}

/* Nút Mũi Tên Chuyển Slide Trái / Phải */
.tdk-hero-nav-btn {
  position: absolute !important;
  top: 50% !important;
  transform: translateY(-50%) !important;
  width: 42px !important;
  height: 42px !important;
  border-radius: 50% !important;
  background: rgba(20, 15, 10, 0.65) !important;
  border: 1.5px solid rgba(212, 175, 55, 0.65) !important;
  color: #F5D77F !important;
  font-size: 26px !important;
  line-height: 1 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  cursor: pointer !important;
  z-index: 15 !important;
  transition: all 0.2s ease !important;
}

.tdk-hero-nav-btn:hover {
  background: #8D2D24 !important;
  color: #FFFFFF !important;
  border-color: #F5D77F !important;
  transform: translateY(-50%) scale(1.08) !important;
}

.tdk-hero-prev { left: 14px !important; }
.tdk-hero-next { right: 14px !important; }

/* Thanh Dock Bar Đáy Hero (Tabs 4 Slide + 4 Chỉ Số Di Sản) */
.tdk-hero-bottom-dock {
  position: relative !important;
  z-index: 10 !important;
  background: rgba(14, 10, 8, 0.86) !important;
  border-top: 1px solid rgba(212, 175, 55, 0.35) !important;
  backdrop-filter: blur(8px);
  padding: 10px 0 !important;
  flex-shrink: 0 !important;
}

.tdk-hero-dock-inner {
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  gap: 16px !important;
  flex-wrap: nowrap !important;
}

.tdk-hero-tabs {
  display: flex !important;
  align-items: center !important;
  gap: 8px !important;
}

.tdk-hero-tab {
  display: inline-flex !important;
  align-items: center !important;
  gap: 7px !important;
  background: rgba(255, 255, 255, 0.06) !important;
  border: 1px solid rgba(212, 175, 55, 0.28) !important;
  color: #CFC4B4 !important;
  padding: 7px 14px !important;
  border-radius: 30px !important;
  font-family: var(--tdk-font-ui) !important;
  font-size: 12px !important;
  font-weight: 600 !important;
  cursor: pointer !important;
  transition: all 0.2s ease !important;
  white-space: nowrap !important;
}

.tdk-hero-tab .tdk-tab-num {
  color: #D4AF37 !important;
  font-weight: 800 !important;
  font-size: 11px !important;
}

.tdk-hero-tab:hover,
.tdk-hero-tab.active {
  background: #8D2D24 !important;
  border-color: #F3D266 !important;
  color: #FFFFFF !important;
  box-shadow: 0 4px 12px rgba(141, 45, 36, 0.4) !important;
}

.tdk-hero-tab.active .tdk-tab-num {
  color: #F9E392 !important;
}

.tdk-hero-mini-stats {
  display: flex !important;
  align-items: center !important;
  gap: 18px !important;
}

.tdk-mini-stat-item {
  display: flex !important;
  flex-direction: column !important;
  align-items: flex-end !important;
  border-right: 1px solid rgba(212, 175, 55, 0.25);
  padding-right: 16px;
  line-height: 1.2;
}

.tdk-mini-stat-item:last-child {
  border-right: none;
  padding-right: 0;
}

.tdk-mini-stat-item strong {
  font-family: var(--tdk-font-heading) !important;
  font-size: 15px !important;
  color: #F3D266 !important;
}

.tdk-mini-stat-item span {
  font-family: var(--tdk-font-ui) !important;
  font-size: 10.5px !important;
  color: #C7BCA9 !important;
}

@media (max-width: 1199px) {
  .tdk-hero-mini-stats {
    display: none !important;
  }
  .tdk-hero-dock-inner {
    justify-content: center !important;
  }
}

@media (max-width: 991px) {
  .tdk-hero-slider-section {
    height: auto !important;
    max-height: none !important;
    min-height: 680px !important;
  }
  .tdk-hero-slide {
    position: relative !important;
    display: none !important;
    padding: 32px 0 !important;
  }
  .tdk-hero-slide.active {
    display: block !important;
  }
  .tdk-hero-grid {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }
  .tdk-hero-tabs {
    flex-wrap: wrap !important;
    justify-content: center !important;
  }
}

/* =======================================================
   4. HERO BANNER RIÊNG CHO TỪNG CHUYÊN MỤC (.tdk-category-hero)
   ======================================================= */
.tdk-category-hero {
  width: 100% !important;
  min-height: 310px;
  background-size: cover !important;
  background-position: center center !important;
  background-repeat: no-repeat !important;
  position: relative !important;
  display: flex !important;
  align-items: center !important;
  padding: 64px 0 56px 0 !important;
  border-bottom: 4px solid var(--tdk-accent-gold) !important;
  box-shadow: inset 0 -20px 40px rgba(0, 0, 0, 0.35) !important;
  overflow: hidden;
}

.tdk-hero-pattern-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.14) 0%, transparent 60%);
  pointer-events: none;
}

.tdk-category-hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 24px;
  width: 100%;
}

.tdk-category-hero-content {
  max-width: 860px;
}

.tdk-category-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(212, 175, 55, 0.2);
  border: 1px solid rgba(212, 175, 55, 0.65);
  border-radius: 30px;
  color: #F7E5A9;
  font-family: var(--tdk-font-ui);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: none;
  margin-bottom: 16px;
  backdrop-filter: blur(4px);
}

.tdk-category-hero-title {
  color: #FFFDF9 !important;
  font-family: var(--tdk-font-heading) !important;
  font-size: 42px !important;
  font-weight: 700 !important;
  line-height: 1.25 !important;
  margin: 0 0 14px 0 !important;
  text-shadow: 0 3px 16px rgba(0, 0, 0, 0.85) !important;
}

.tdk-category-hero-subtitle {
  color: #EDE3D2 !important;
  font-family: var(--tdk-font-body) !important;
  font-size: 17px !important;
  line-height: 1.7 !important;
  margin: 0 !important;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.85) !important;
}

.tdk-category-breadcrumbs {
  background: rgba(18, 14, 10, 0.68);
  border: 1px solid rgba(212, 175, 55, 0.4);
  padding: 10px 20px;
  border-radius: 30px;
  font-family: var(--tdk-font-ui);
  font-size: 13px;
  color: #E5DAC7;
  backdrop-filter: blur(6px);
  white-space: nowrap;
}

.tdk-category-breadcrumbs a {
  color: #F5D77F !important;
  text-decoration: none !important;
  font-weight: 600;
}

.tdk-category-breadcrumbs a:hover {
  text-decoration: underline !important;
}

.tdk-bc-sep {
  margin: 0 8px;
  color: rgba(255, 255, 255, 0.45);
}

.tdk-bc-current {
  color: #FFFFFF;
  font-weight: 500;
}

/* =======================================================
   5. BỘ CHỌN MÀU SẮC GIAO DIỆN PREMIUM (THEME SWITCHER UI)
   ======================================================= */
.tdk-theme-switcher-floating {
  position: fixed;
  bottom: 28px;
  left: 28px;
  z-index: 99998;
  font-family: var(--tdk-font-ui);
}

.tdk-theme-toggle-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--tdk-bg-card);
  color: var(--tdk-text-primary);
  border: 2px solid var(--tdk-accent-gold);
  padding: 10px 18px;
  border-radius: 40px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
  transition: all 0.25s ease;
}

.tdk-theme-toggle-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(212, 175, 55, 0.35);
}

.tdk-theme-palette-panel {
  position: absolute;
  bottom: 58px;
  left: 0;
  width: 295px;
  background: var(--tdk-bg-card);
  border: 1px solid var(--tdk-border);
  outline: 3px double var(--tdk-accent-gold);
  outline-offset: -6px;
  border-radius: 10px;
  padding: 18px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.32);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.tdk-theme-switcher-floating.open .tdk-theme-palette-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.tdk-palette-header {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--tdk-accent-red);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--tdk-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.tdk-palette-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tdk-palette-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border: 1px solid var(--tdk-border);
  border-radius: 6px;
  background: var(--tdk-bg-subtle);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
  width: 100%;
}

.tdk-palette-option:hover,
.tdk-palette-option.active {
  border-color: var(--tdk-accent-red);
  background: var(--tdk-bg-primary);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
}

.tdk-palette-swatches {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.tdk-swatch-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1.5px solid #FFF;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  margin-right: -5px;
}

.tdk-palette-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--tdk-text-primary);
  margin-left: 8px;
}

.tdk-palette-sub {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--tdk-text-secondary);
}

/* =======================================================
   6. THÀNH PHẦN UI/UX PREMIUM (FRAMES, BUTTONS, CARDS, 3D BOOKS)
   ======================================================= */
.tdk-vintage-frame {
  background: var(--tdk-bg-card);
  border: 1px solid var(--tdk-border);
  outline: 4px double rgba(180, 155, 115, 0.45);
  outline-offset: -9px;
  padding: 18px;
  border-radius: 6px;
  box-shadow: var(--tdk-shadow-soft);
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tdk-vintage-frame:hover {
  transform: translateY(-4px);
  box-shadow: var(--tdk-shadow-hover);
}

.tdk-stamp-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border: 1.5px solid var(--tdk-accent-red);
  color: var(--tdk-accent-red);
  background: rgba(141, 45, 36, 0.06);
  font-family: var(--tdk-font-ui);
  font-size: 12px;
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0.4px;
  border-radius: 3px;
}

.tdk-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--tdk-accent-red) 0%, #681D16 100%);
  color: #FFFFFF !important;
  font-family: var(--tdk-font-ui);
  font-size: 14px;
  font-weight: 700;
  padding: 13px 28px;
  border-radius: 4px;
  border: 1px solid var(--tdk-accent-gold);
  text-decoration: none !important;
  letter-spacing: 0.5px;
  box-shadow: 0 6px 18px rgba(141, 45, 36, 0.25);
  transition: all 0.25s ease;
  cursor: pointer;
}

.tdk-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(141, 45, 36, 0.38);
  filter: brightness(1.08);
}

.tdk-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--tdk-bg-card);
  color: var(--tdk-text-primary) !important;
  font-family: var(--tdk-font-ui);
  font-size: 14px;
  font-weight: 700;
  padding: 13px 26px;
  border-radius: 4px;
  border: 1.5px solid var(--tdk-border);
  text-decoration: none !important;
  transition: all 0.25s ease;
}

.tdk-btn-secondary:hover {
  border-color: var(--tdk-accent-red);
  color: var(--tdk-accent-red) !important;
  transform: translateY(-2px);
  box-shadow: var(--tdk-shadow-soft);
}

/* Thơ Grid & Cards */
.tdk-poem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 28px;
  margin-bottom: 50px;
}

.tdk-poem-card {
  background: var(--tdk-bg-card);
  border: 1px solid var(--tdk-border);
  border-top: 3px solid var(--tdk-accent-red);
  padding: 28px;
  border-radius: 6px;
  box-shadow: var(--tdk-shadow-soft);
  transition: transform 0.28s ease, box-shadow 0.28s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.tdk-poem-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--tdk-shadow-hover);
}

.tdk-card-title {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 12px 0;
  line-height: 1.35;
}

.tdk-card-title a {
  color: var(--tdk-accent-red) !important;
  text-decoration: none !important;
}

.tdk-card-excerpt {
  font-size: 16px;
  color: var(--tdk-text-secondary);
  line-height: 1.75;
  font-style: italic;
  margin-bottom: 20px;
}

.tdk-card-footer {
  border-top: 1px dashed var(--tdk-border);
  padding-top: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--tdk-font-ui);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--tdk-accent-green);
}

/* 3D Book Grid & Cards */
.tdk-book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

/* Lưới 10 tập sách trang chủ: 5 cột x 2 hàng cân đối vuông vắn, không còn khoảng trống */
.tdk-home-book-grid {
  display: grid !important;
  grid-template-columns: repeat(5, minmax(0, 1fr)) !important;
  gap: 22px !important;
  align-items: stretch !important;
}

@media (max-width: 1199px) and (min-width: 768px) {
  .tdk-home-book-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
  }
}

@media (max-width: 767px) {
  .tdk-home-book-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 16px !important;
  }
}

.tdk-home-book-grid .tdk-book-card {
  height: 100%;
  padding: 20px 16px;
}

.tdk-home-book-grid .tdk-book-cover-wrap {
  width: 100%;
  max-width: 185px;
  height: 255px;
  margin: 0 auto 16px auto;
}

.tdk-home-book-grid .tdk-book-title {
  font-size: 18px;
  line-height: 1.38;
  margin: 0 0 6px 0;
}

.tdk-book-card {
  background: var(--tdk-bg-card);
  border: 1px solid var(--tdk-border);
  border-radius: 8px;
  padding: 20px 18px;
  text-align: center;
  box-shadow: var(--tdk-shadow-soft);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.tdk-book-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--tdk-shadow-hover);
}

.tdk-book-cover-wrap {
  position: relative;
  width: 190px;
  height: 265px;
  margin: 0 auto 20px auto;
  perspective: 900px;
}

.tdk-book-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 3px 6px 6px 3px;
  box-shadow: -6px 6px 16px rgba(0, 0, 0, 0.25), inset 4px 0 8px rgba(255, 255, 255, 0.3);
  border-left: 5px solid #5A1912;
  transition: transform 0.35s ease;
}

.tdk-book-card:hover .tdk-book-cover {
  transform: rotateY(-10deg) scale(1.03);
}

.tdk-book-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 8px 0;
  line-height: 1.4;
}

.tdk-book-title a {
  color: var(--tdk-text-primary) !important;
  text-decoration: none !important;
}

.tdk-book-title a:hover {
  color: var(--tdk-accent-red) !important;
}

.tdk-book-meta {
  font-family: var(--tdk-font-ui);
  font-size: 13px;
  color: var(--tdk-accent-green);
  font-weight: 600;
}

/* =======================================================
   7. POEM READING TEMPLATE (/tho/[slug])
   ======================================================= */
.tdk-poem-container {
  max-width: 880px;
  margin: 45px auto 80px auto;
  padding: 48px 56px;
  background: var(--tdk-bg-card);
  border: 1px solid var(--tdk-border);
  outline: 5px double rgba(180, 155, 115, 0.4);
  outline-offset: -12px;
  border-radius: 6px;
  box-shadow: var(--tdk-shadow-soft);
  transition: all 0.3s ease;
}

.tdk-poem-container.mode-white { background: #FFFFFF !important; color: #222 !important; }
.tdk-poem-container.mode-sepia { background: #F8F4EA !important; color: #292621 !important; }
.tdk-poem-container.mode-night {
  background: #1B1E23 !important;
  color: #E2DFD7 !important;
  border-color: #35393D !important;
}
.tdk-poem-container.mode-night .tdk-poem-title { color: #F0C961 !important; }

.tdk-poem-header {
  text-align: center;
  margin-bottom: 35px;
  padding-bottom: 25px;
  border-bottom: 1px solid var(--tdk-border);
}

.tdk-poem-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--tdk-accent-red) !important;
}

.tdk-poem-meta-chips {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  font-family: var(--tdk-font-ui);
  font-size: 13.5px;
}

.tdk-chip {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(83, 99, 75, 0.1);
  color: var(--tdk-accent-green);
  border-radius: 20px;
  font-weight: 600;
}

.tdk-reader-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  background: var(--tdk-bg-subtle);
  border: 1px solid var(--tdk-border);
  border-radius: 6px;
  padding: 10px 18px;
  margin-bottom: 35px;
  font-family: var(--tdk-font-ui);
  font-size: 13px;
}

.tdk-control-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tdk-btn-tool {
  background: var(--tdk-bg-card);
  border: 1px solid var(--tdk-border);
  padding: 5px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  color: var(--tdk-text-primary);
  transition: all 0.2s;
}

.tdk-btn-tool:hover {
  background: var(--tdk-accent-red);
  color: #FFFFFF;
  border-color: var(--tdk-accent-red);
}

.tdk-poem-content-wrapper {
  max-width: 680px;
  margin: 0 auto;
  font-size: 21px;
  line-height: 2;
  white-space: pre-line;
  word-break: break-word;
}

.tdk-context-box {
  background: var(--tdk-bg-subtle);
  border-left: 4px solid var(--tdk-accent-red);
  padding: 18px 24px;
  margin: 40px auto 25px auto;
  max-width: 680px;
  font-size: 15.5px;
  line-height: 1.7;
  font-style: italic;
  color: var(--tdk-text-secondary);
}

.tdk-media-section {
  max-width: 680px;
  margin: 30px auto;
  padding-top: 25px;
  border-top: 1px dashed var(--tdk-border);
}

.tdk-media-title {
  font-family: var(--tdk-font-ui);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--tdk-accent-green);
  font-weight: 700;
  margin-bottom: 12px;
}

.tdk-citation-box {
  max-width: 680px;
  margin: 30px auto 0 auto;
  padding: 18px 22px;
  background: rgba(83, 99, 75, 0.06);
  border: 1px solid var(--tdk-border);
  border-radius: 6px;
  font-family: var(--tdk-font-ui);
  font-size: 13.5px;
  color: var(--tdk-text-secondary);
  line-height: 1.7;
}

/* Filter Bar */
.tdk-filter-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
  font-family: var(--tdk-font-ui);
}

.tdk-filter-link {
  display: inline-block;
  padding: 8px 20px;
  border: 1px solid var(--tdk-border);
  border-radius: 24px;
  color: var(--tdk-text-primary);
  text-decoration: none !important;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s;
  background: var(--tdk-bg-card);
}

.tdk-filter-link.active,
.tdk-filter-link:hover {
  background: var(--tdk-accent-red);
  color: #FFFFFF !important;
  border-color: var(--tdk-accent-red);
}

/* =======================================================
   8. MÁY NGHE NGÂM THƠ ĐĨA THAN HOÀI NIỆM (GRAMOPHONE)
   ======================================================= */
.tdk-vintage-player {
  background: linear-gradient(135deg, #241D18 0%, #17120E 100%);
  border: 2px solid #8D6E3F;
  outline: 4px double rgba(212, 175, 55, 0.35);
  outline-offset: -10px;
  border-radius: 10px;
  padding: 32px 38px;
  color: #F6EFE2;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
  margin-bottom: 40px;
}

.tdk-player-flex {
  display: flex;
  align-items: center;
  gap: 38px;
  flex-wrap: wrap;
}

.tdk-vinyl-disk {
  width: 155px;
  height: 155px;
  border-radius: 50%;
  background: repeating-radial-gradient(
    #111 0,
    #111 4px,
    #222 5px,
    #111 6px
  );
  border: 3px solid #D4AF37;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin: 0 auto;
  transition: transform 0.5s linear;
}

.tdk-vinyl-disk.spinning {
  animation: tdkSpin 6s linear infinite;
}

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

.tdk-vinyl-center {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: radial-gradient(circle, #A83226 0%, #6E1C14 100%);
  border: 2px solid #D4AF37;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--tdk-font-ui);
  font-size: 9px;
  font-weight: 700;
  color: #FAF2DF;
  text-align: center;
  letter-spacing: 0.5px;
}

.tdk-player-controls {
  flex: 1;
  min-width: 280px;
}

.tdk-player-title {
  color: #F9E6B3 !important;
  font-size: 26px !important;
  margin: 4px 0 6px 0 !important;
}

.tdk-player-subtitle {
  color: #C7BBA8;
  font-family: var(--tdk-font-ui);
  font-size: 13.5px;
  margin-bottom: 16px;
}

.tdk-audio-btn {
  background: linear-gradient(135deg, #D4AF37 0%, #AA821C 100%);
  color: #1A130E;
  border: none;
  padding: 10px 22px;
  border-radius: 30px;
  font-family: var(--tdk-font-ui);
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.tdk-audio-btn:hover {
  transform: scale(1.03);
  filter: brightness(1.1);
}

.tdk-track-select {
  background: #2C231D;
  color: #F6EFE2;
  border: 1px solid #6E5838;
  padding: 9px 16px;
  border-radius: 30px;
  font-family: var(--tdk-font-ui);
  font-size: 13.5px;
}

.tdk-equalizer {
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  height: 18px;
  margin-left: 12px;
  vertical-align: middle;
}
.tdk-eq-bar {
  width: 3px;
  background: #D4AF37;
  border-radius: 2px;
  height: 4px;
}
.tdk-equalizer.active .tdk-eq-bar:nth-child(1) { animation: tdkEq 0.8s ease-in-out infinite alternate; }
.tdk-equalizer.active .tdk-eq-bar:nth-child(2) { animation: tdkEq 1.1s ease-in-out 0.2s infinite alternate; }
.tdk-equalizer.active .tdk-eq-bar:nth-child(3) { animation: tdkEq 0.7s ease-in-out 0.4s infinite alternate; }
.tdk-equalizer.active .tdk-eq-bar:nth-child(4) { animation: tdkEq 0.9s ease-in-out 0.1s infinite alternate; }
@keyframes tdkEq {
  0% { height: 4px; }
  100% { height: 18px; }
}

/* =======================================================
   9. FOOTER PREMIUM VĂN CHƯƠNG ĐIỀN TRÌ
   ======================================================= */
.tdk-footer-outer {
  background: linear-gradient(180deg, #1D1815 0%, #120F0D 100%);
  color: #DCD3C3;
  border-top: 4px solid var(--tdk-accent-gold);
  padding: 64px 0 30px 0;
  font-family: var(--tdk-font-ui);
}

.tdk-footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 45px;
}

@media (max-width: 991px) {
  .tdk-footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.tdk-footer-logo {
  height: 60px;
  width: auto;
  margin-bottom: 18px;
  display: block;
}

/* Logo Footer Inline SVG + HTML Brand Lockup (Chống lẹm chữ tuyệt đối) */
.tdk-footer-brand-lockup {
  display: inline-flex !important;
  align-items: center !important;
  gap: 14px !important;
  text-decoration: none !important;
  margin-bottom: 18px !important;
  max-width: 100% !important;
}

.tdk-footer-seal-wrap {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  flex-shrink: 0 !important;
  width: 58px !important;
  height: 58px !important;
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.45));
  transition: transform 0.25s ease !important;
}

.tdk-footer-seal-svg {
  width: 58px !important;
  height: 58px !important;
  min-width: 58px !important;
  min-height: 58px !important;
  display: block !important;
}

.tdk-footer-brand-lockup:hover .tdk-footer-seal-wrap {
  transform: scale(1.05);
}

.tdk-footer-brand-text {
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
  align-items: flex-start !important;
  line-height: 1.2 !important;
}

.tdk-footer-brand-name {
  font-family: var(--tdk-font-heading) !important;
  font-size: 24px !important;
  font-weight: 800 !important;
  color: #FAF3E3 !important;
  letter-spacing: 0.4px !important;
  line-height: 1.2 !important;
  white-space: nowrap !important;
  display: block !important;
}

.tdk-footer-brand-rule {
  display: flex !important;
  align-items: center !important;
  width: 100% !important;
  height: 1.5px !important;
  background: linear-gradient(90deg, #D4AF37 0%, rgba(212, 175, 55, 0.45) 85%, transparent 100%) !important;
  margin: 5px 0 !important;
}

.tdk-footer-brand-diamond {
  width: 6px !important;
  height: 6px !important;
  background: #D4AF37 !important;
  transform: rotate(45deg) !important;
  display: inline-block !important;
  margin-left: 36% !important;
}

.tdk-footer-brand-tagline {
  font-family: var(--tdk-font-ui) !important;
  font-size: 11.5px !important;
  font-weight: 700 !important;
  color: #E5C158 !important;
  letter-spacing: 0.8px !important;
  line-height: 1.25 !important;
  white-space: nowrap !important;
  display: block !important;
}

.tdk-footer-desc {
  font-size: 14.5px;
  line-height: 1.8;
  color: #B8ADA0;
  margin-bottom: 20px;
}

.tdk-footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tdk-footer-seal-chip {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(212, 175, 55, 0.12);
  border: 1px solid rgba(212, 175, 55, 0.45);
  color: #F0D27A;
  font-size: 12px;
  font-weight: 600;
  border-radius: 4px;
}

.tdk-footer-heading {
  font-family: var(--tdk-font-heading) !important;
  font-size: 20px !important;
  color: #F7E9CE !important;
  margin: 0 0 20px 0 !important;
  padding-bottom: 10px;
  border-bottom: 1px solid #38302A;
}

.tdk-footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  line-height: 2.25;
  font-size: 14.5px;
}

.tdk-footer-links a {
  color: #C2B6A6 !important;
  text-decoration: none !important;
  transition: color 0.2s, padding-left 0.2s;
}

.tdk-footer-links a:hover {
  color: #F0D27A !important;
  padding-left: 5px;
}

.tdk-footer-contact {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-size: 14.5px;
  color: #C2B6A6;
}

.tdk-footer-contact li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  line-height: 1.65;
}

.tdk-footer-contact a {
  color: #F0D27A !important;
  text-decoration: none !important;
}

.tdk-footer-note {
  margin-top: 16px;
  padding: 12px 15px;
  background: rgba(255, 255, 255, 0.04);
  border-left: 3px solid var(--tdk-accent-gold);
  font-size: 13px;
  font-style: italic;
  color: #A39788;
}

.tdk-footer-bottom {
  border-top: 1px solid #2E2722;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
  font-size: 13.5px;
  color: #968B7C;
}

.tdk-footer-bottom-links {
  display: flex;
  gap: 12px;
  align-items: center;
}

.tdk-footer-bottom-links a {
  color: #C2B6A6 !important;
  text-decoration: none !important;
}

/* =======================================================
   10. FULLSCREEN VINTAGE LIGHTBOX MODAL & TOAST
   ======================================================= */
.tdk-lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(14, 11, 9, 0.93);
  backdrop-filter: blur(8px);
  z-index: 999999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.tdk-lightbox-overlay.active {
  opacity: 1;
  pointer-events: auto;
}
.tdk-lightbox-box {
  background: var(--tdk-bg-card);
  border: 1px solid var(--tdk-border);
  outline: 6px double var(--tdk-accent-red);
  outline-offset: -12px;
  padding: 30px;
  border-radius: 8px;
  max-width: 90vw;
  max-height: 92vh;
  box-shadow: 0 24px 64px rgba(0,0,0,0.65);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
.tdk-lightbox-img {
  max-width: 80vw;
  max-height: 65vh;
  object-fit: contain;
  border-radius: 3px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  background: #FFFFFF;
}
.tdk-lightbox-caption {
  margin-top: 18px;
  text-align: center;
  max-width: 750px;
}
.tdk-lightbox-title {
  font-family: var(--tdk-font-heading);
  font-size: 21px;
  color: var(--tdk-accent-red);
  margin: 0 0 6px 0;
}
.tdk-lightbox-desc {
  font-size: 14.5px;
  color: var(--tdk-text-secondary);
  line-height: 1.6;
  margin: 0;
}
.tdk-lightbox-counter {
  font-family: var(--tdk-font-ui);
  font-size: 12px;
  color: var(--tdk-accent-gold);
  margin-top: 6px;
  font-weight: 700;
  text-transform: uppercase;
}
.tdk-lightbox-close {
  position: absolute;
  top: 14px;
  right: 20px;
  font-size: 32px;
  color: var(--tdk-accent-red);
  cursor: pointer;
  background: none;
  border: none;
  line-height: 1;
}
.tdk-lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: var(--tdk-bg-card);
  border: 1px solid var(--tdk-border);
  color: var(--tdk-accent-red);
  font-size: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
}
.tdk-lightbox-prev { left: -24px; }
.tdk-lightbox-next { right: -24px; }

.tdk-toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background: #241E1A;
  color: #FAF6EE;
  border-left: 4px solid var(--tdk-accent-gold);
  padding: 14px 24px;
  border-radius: 6px;
  font-family: var(--tdk-font-ui);
  font-size: 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
  z-index: 9999999;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
  pointer-events: none;
}
.tdk-toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Book Excerpt & Detail Box */
.tdk-book-excerpt-meta {
  margin-top: 12px;
  padding: 12px 16px;
  background: var(--tdk-bg-subtle);
  border-left: 3px solid var(--tdk-accent-red);
  border-radius: 4px;
  font-family: var(--tdk-font-ui);
  font-size: 13px;
  line-height: 1.65;
  color: var(--tdk-text-secondary);
}
.tdk-book-excerpt-badge {
  font-weight: 700;
  color: var(--tdk-accent-red);
  text-transform: none;
  font-size: 11.5px;
  letter-spacing: 0.3px;
  display: block;
  margin-bottom: 4px;
}
.tdk-book-detail-box {
  margin: 30px 0;
  padding: 24px 28px;
  background: var(--tdk-bg-subtle);
  border: 1px solid var(--tdk-border);
  border-left: 4px solid var(--tdk-accent-red);
  border-radius: 6px;
  font-family: var(--tdk-font-ui);
}
.tdk-book-detail-box h4 {
  margin: 0 0 14px 0;
  color: var(--tdk-accent-red);
  font-size: 18px;
  text-transform: none;
}
.tdk-book-detail-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  line-height: 1.85;
}
.tdk-book-detail-table td {
  padding: 6px 8px;
  border-bottom: 1px dashed var(--tdk-border);
}
.tdk-book-detail-table td:first-child {
  width: 170px;
  font-weight: 600;
  color: var(--tdk-text-secondary);
}

/* =======================================================
   11. SIDEBAR VĂN CHƯƠNG ĐIỀN TRÌ & STICKY SIDEBAR (6 KHỐI)
   ======================================================= */
.tdk-literary-sidebar .tdk-sidebar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: 24px;
}

.tdk-sb-widget {
  background: var(--tdk-bg-card);
  border: 1px solid var(--tdk-border);
  border-top: 3px solid var(--tdk-accent-red);
  border-radius: 8px;
  padding: 22px 20px;
  box-shadow: var(--tdk-shadow-soft);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.tdk-sb-widget:hover {
  box-shadow: var(--tdk-shadow-hover);
}

.tdk-sb-title {
  font-family: var(--tdk-font-heading) !important;
  font-size: 17.5px !important;
  font-weight: 700 !important;
  color: var(--tdk-accent-red) !important;
  margin: 0 0 16px 0 !important;
  padding-bottom: 10px !important;
  border-bottom: 1.5px solid var(--tdk-border) !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* 1. Search Widget */
.tdk-sb-search-form {
  display: flex;
  gap: 8px;
}

.tdk-sb-search-input {
  flex: 1;
  min-width: 0;
  padding: 10px 14px;
  border: 1px solid var(--tdk-border);
  border-radius: 4px;
  background: var(--tdk-bg-subtle);
  color: var(--tdk-text-primary);
  font-family: var(--tdk-font-ui);
  font-size: 13.5px;
}

.tdk-sb-search-btn {
  padding: 10px 16px;
  background: var(--tdk-accent-red);
  color: #FFFFFF;
  border: none;
  border-radius: 4px;
  font-family: var(--tdk-font-ui);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: filter 0.2s;
}

.tdk-sb-search-btn:hover {
  filter: brightness(1.1);
}

/* 2. Danh Nhân Điền Trì Card */
.tdk-sb-author-photo {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 14px;
  border: 1px solid var(--tdk-border);
}

.tdk-sb-author-photo img {
  width: 100%;
  height: 195px;
  object-fit: cover;
  display: block;
}

.tdk-sb-photo-badge {
  position: absolute;
  bottom: 8px;
  left: 8px;
  background: rgba(24, 18, 12, 0.82);
  color: #F5D77F;
  border: 1px solid rgba(212, 175, 55, 0.5);
  font-family: var(--tdk-font-ui);
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
}

.tdk-sb-author-heading {
  font-size: 17px !important;
  font-weight: 700 !important;
  margin: 0 0 8px 0 !important;
  color: var(--tdk-text-primary) !important;
}

.tdk-sb-author-desc {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--tdk-text-secondary);
  margin: 0 0 14px 0;
}

.tdk-sb-btn-outline {
  display: block;
  text-align: center;
  padding: 9px 14px;
  border: 1.5px solid var(--tdk-accent-red);
  color: var(--tdk-accent-red) !important;
  border-radius: 4px;
  font-family: var(--tdk-font-ui);
  font-size: 13px;
  font-weight: 700;
  text-transform: none;
  text-decoration: none !important;
  transition: all 0.2s ease;
}

.tdk-sb-btn-outline:hover {
  background: var(--tdk-accent-red);
  color: #FFFFFF !important;
}

/* 3. Ấn Bản Tiêu Biểu List */
.tdk-sb-book-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tdk-sb-book-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  border-radius: 6px;
  background: var(--tdk-bg-subtle);
  border: 1px solid transparent;
  text-decoration: none !important;
  transition: all 0.2s ease;
}

.tdk-sb-book-item:hover {
  border-color: var(--tdk-accent-gold);
  transform: translateX(3px);
}

.tdk-sb-book-thumb {
  width: 52px;
  height: 70px;
  object-fit: cover;
  border-radius: 3px;
  border-left: 3px solid var(--tdk-accent-red);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.18);
  flex-shrink: 0;
}

.tdk-sb-book-name {
  font-family: var(--tdk-font-heading);
  font-size: 14.5px;
  font-weight: 700;
  color: var(--tdk-text-primary);
  line-height: 1.35;
  margin-bottom: 4px;
}

.tdk-sb-book-meta {
  font-family: var(--tdk-font-ui);
  font-size: 12px;
  color: var(--tdk-accent-green);
  font-weight: 600;
}

.tdk-sb-more-link {
  font-family: var(--tdk-font-ui);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--tdk-accent-red) !important;
  text-decoration: none !important;
}

.tdk-sb-more-link:hover {
  text-decoration: underline !important;
}

/* 4. Bài viết mới & 5. Bình luận gần đây */
.tdk-sb-post-list,
.tdk-sb-comment-list {
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tdk-sb-post-item {
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--tdk-border);
  font-size: 14px;
  line-height: 1.5;
}

.tdk-sb-post-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.tdk-sb-post-badge {
  display: inline-block;
  font-family: var(--tdk-font-ui);
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  background: rgba(141, 45, 36, 0.1);
  color: var(--tdk-accent-red);
  padding: 2px 7px;
  border-radius: 3px;
  margin-right: 6px;
}

.tdk-sb-post-link {
  font-weight: 600;
  color: var(--tdk-text-primary) !important;
  text-decoration: none !important;
}

.tdk-sb-post-link:hover {
  color: var(--tdk-accent-red) !important;
}

.tdk-sb-post-year {
  font-family: var(--tdk-font-ui);
  font-size: 12px;
  color: var(--tdk-text-secondary);
  margin-left: 4px;
}

.tdk-sb-comment-item {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--tdk-text-secondary);
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--tdk-border);
}

.tdk-sb-comment-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.tdk-sb-comment-item strong {
  color: var(--tdk-text-primary);
}

.tdk-sb-comment-item a {
  color: var(--tdk-accent-red) !important;
  font-weight: 600;
  text-decoration: none !important;
}

.tdk-sb-comment-item span {
  display: block;
  font-style: italic;
  margin-top: 3px;
  font-size: 13px;
}

/* 6. Khối Bám Dính (Sticky Group) ở cuối Sidebar */
.tdk-sidebar-sticky-group {
  position: -webkit-sticky !important;
  position: sticky !important;
  top: 108px !important;
  display: flex;
  flex-direction: column;
  gap: 24px;
  z-index: 10;
}

.tdk-sb-poem-quote {
  background: var(--tdk-bg-subtle);
  outline: 3px double var(--tdk-accent-gold);
  outline-offset: -8px;
  text-align: center;
}

.tdk-sb-seal-badge {
  display: inline-block;
  background: var(--tdk-accent-red);
  color: #FAF3E3;
  font-family: var(--tdk-font-ui);
  font-size: 11px;
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0.4px;
  padding: 3px 12px;
  border-radius: 20px;
  margin-bottom: 8px;
}

.tdk-sb-quote-title {
  font-size: 18px !important;
  color: var(--tdk-accent-red) !important;
  margin: 0 0 10px 0 !important;
}

.tdk-sb-quote-content {
  font-family: var(--tdk-font-heading);
  font-size: 15px;
  font-style: italic;
  line-height: 1.75;
  color: var(--tdk-text-primary);
  margin: 0 0 10px 0 !important;
  padding: 0 !important;
  border: none !important;
}

.tdk-sb-quote-author {
  font-family: var(--tdk-font-ui);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--tdk-accent-green);
}

.tdk-sb-memorial-card {
  padding: 0 !important;
  overflow: hidden;
}

.tdk-sb-memorial-img {
  width: 100%;
  height: 165px;
  object-fit: cover;
  display: block;
}

.tdk-sb-memorial-body {
  padding: 18px 20px 20px 20px;
}

.tdk-sb-memorial-body h5 {
  font-size: 17px !important;
  margin: 0 0 6px 0 !important;
  color: var(--tdk-accent-red) !important;
}

.tdk-sb-memorial-body p {
  font-size: 13.5px;
  color: var(--tdk-text-secondary);
  margin: 0 0 8px 0;
  line-height: 1.55;
}

.tdk-sb-btn-primary {
  display: block;
  text-align: center;
  background: linear-gradient(135deg, var(--tdk-accent-red) 0%, #681D16 100%);
  color: #FFFFFF !important;
  font-family: var(--tdk-font-ui);
  font-size: 13px;
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0.3px;
  padding: 10px 14px;
  border-radius: 4px;
  border: 1px solid var(--tdk-accent-gold);
  text-decoration: none !important;
  transition: all 0.2s ease;
}

.tdk-sb-btn-primary:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}