:root {
  --bg-parchment: #f6f2eb;
  --bg-card: #ffffff;
  --bg-warm: #efe6d8;
  --bg-espresso: #1c130c;
  --bg-saddle: #382112;
  --text-main: #21150c;
  --text-muted: #6b5440;
  --text-light: #f8f1e7;
  --accent-leather: #a85418;
  --accent-leather-hover: #8a410f;
  --accent-amber: #d97706;
  --accent-gold: #f59e0b;
  --accent-green: #15803d;
  --accent-zalo: #0068ff;
  --border-soft: #e3d6c4;
  --border-stitch: #c9b193;
  --shadow-sm: 0 2px 8px rgba(35, 22, 13, 0.05);
  --shadow-md: 0 10px 26px rgba(35, 22, 13, 0.11);
  --shadow-lg: 0 20px 48px rgba(35, 22, 13, 0.22);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-parchment);
  color: var(--text-main);
  line-height: 1.5;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

.hidden {
  display: none !important;
}

/* 1. Topbar */
.topbar {
  background: var(--bg-espresso);
  color: var(--text-light);
  font-size: 12.5px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.domain-pill {
  background: var(--accent-gold);
  color: #1c130c;
  font-weight: 900;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-link {
  color: #f3eadc;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 3px 9px;
  border-radius: 5px;
  font-size: 11.5px;
  font-weight: 600;
}

.topbar-link:hover {
  background: rgba(255, 255, 255, 0.18);
}

.topbar-admin-link {
  background: var(--accent-gold);
  color: #1c130c;
  font-weight: 800;
  border-color: var(--accent-gold);
}

.topbar-cta {
  color: #fde68a;
  font-weight: 800;
  text-decoration: none;
}

/* 2. Sticky Header */
.site-header {
  background: #ffffff;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border-soft);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 20px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-main);
  flex-shrink: 0;
}

.brand-logo-img {
  width: 46px;
  height: 46px;
  object-fit: contain;
  border-radius: 9px;
  background: #ffffff;
  border: 1.5px solid var(--border-soft);
  padding: 2px;
}

.footer-logo-img {
  background: #ffffff;
  border-color: var(--accent-gold);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 18.5px;
  font-weight: 900;
  color: var(--bg-saddle);
  line-height: 1.1;
}

.brand-sub {
  font-size: 11.5px;
  color: var(--text-muted);
  font-weight: 600;
}

.header-search {
  flex: 1;
  max-width: 440px;
  position: relative;
}

.header-search input {
  width: 100%;
  padding: 9px 34px 9px 14px;
  border-radius: 99px;
  border: 1.5px solid var(--border-stitch);
  background: var(--bg-parchment);
  font-size: 13.5px;
  color: var(--text-main);
}

.header-search input:focus {
  outline: none;
  border-color: var(--accent-leather);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(168, 84, 24, 0.14);
}

.clear-search-btn {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 14px;
}

.header-quick-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hq-pill {
  text-decoration: none;
  font-size: 12.5px;
  font-weight: 800;
  color: var(--bg-saddle);
  padding: 7px 12px;
  border-radius: 8px;
  background: var(--bg-parchment);
  border: 1px solid var(--border-soft);
  white-space: nowrap;
  transition: all 0.16s;
}

.hq-pill:hover,
.hq-pill.active {
  background: var(--bg-saddle);
  color: #fff;
  border-color: var(--bg-saddle);
}

.hq-pill-zalo {
  background: #eff6ff;
  color: #0052cc;
  border-color: #93c5fd;
}

.hq-pill-zalo:hover {
  background: var(--accent-zalo);
  color: #fff;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.consult-quick-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 13px;
  border-radius: 99px;
  border: 1.5px solid var(--border-stitch);
  background: var(--bg-warm);
  color: var(--bg-saddle);
  font-weight: 800;
  font-size: 12.5px;
  text-decoration: none;
}

.consult-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #16a34a;
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.25);
}

.cart-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border-radius: 99px;
  border: none;
  background: var(--bg-saddle);
  color: #fff;
  font-weight: 800;
  font-size: 13px;
  cursor: pointer;
}

.cart-btn:hover {
  background: var(--accent-leather);
}

.cart-count {
  background: var(--accent-gold);
  color: #1c130c;
  padding: 1px 6px;
  border-radius: 99px;
  font-size: 11.5px;
  font-weight: 900;
}

/* 3. Compact Hero & 4-Variant Strip */
.compact-hero {
  background:
    linear-gradient(120deg, rgba(28, 18, 10, 0.94) 0%, rgba(56, 33, 17, 0.9) 60%, rgba(36, 21, 11, 0.94) 100%),
    url('/assets/brand/hero-workbench.jpg') center/cover no-repeat;
  color: var(--text-light);
  padding: 22px 0;
  border-bottom: 2px dashed var(--accent-gold);
}

.compact-hero-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
  align-items: center;
}

.ch-badge-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.hero-eyebrow {
  font-size: 11px;
  font-weight: 800;
  color: #fcd34d;
  background: rgba(245, 158, 11, 0.16);
  border: 1px solid rgba(245, 158, 11, 0.35);
  padding: 3px 10px;
  border-radius: 99px;
}

.ch-gift-link {
  font-size: 12px;
  font-weight: 800;
  color: #93c5fd;
  text-decoration: none;
}

.ch-gift-link:hover {
  text-decoration: underline;
}

.ch-title {
  font-size: clamp(20px, 2.3vw, 28px);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 6px;
}

.text-accent {
  color: #fbbf24;
  text-decoration: underline;
  text-decoration-style: dashed;
  text-underline-offset: 4px;
}

.ch-sub {
  font-size: 13.5px;
  color: #e2d3c1;
  margin-bottom: 14px;
}

.ch-visual-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.ch-visual-chip {
  display: flex;
  align-items: center;
  gap: 9px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 6px 9px;
  border-radius: 10px;
  text-decoration: none;
  color: #fff;
  transition: all 0.18s;
}

.ch-visual-chip:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: #fbbf24;
}

.ch-visual-chip img {
  width: 42px;
  height: 42px;
  border-radius: 7px;
  object-fit: cover;
  flex-shrink: 0;
}

.ch-visual-chip strong {
  display: block;
  font-size: 12px;
  color: #fde68a;
  line-height: 1.2;
}

.ch-visual-chip span {
  font-size: 11px;
  color: #d6c3ad;
}

.ch-right {
  background: rgba(255, 255, 255, 0.06);
  border: 1.5px dashed rgba(251, 191, 36, 0.45);
  border-radius: 14px;
  padding: 14px;
}

.ch-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  font-size: 11px;
  font-weight: 800;
  color: #fcd34d;
}

.ch-panel-head a {
  color: #e2d3c1;
  text-decoration: underline;
}

.variant-mode-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.variant-mode-card {
  text-align: left;
  background: rgba(28, 19, 12, 0.78);
  border: 1.5px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.18s;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.variant-mode-card:hover {
  border-color: #fbbf24;
}

.variant-mode-card.active {
  background: #fff9f0;
  color: var(--text-main);
  border: 2px solid var(--accent-gold);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.vm-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.vm-icon {
  font-size: 16px;
}

.vm-badge {
  font-size: 10px;
  font-weight: 800;
  padding: 1px 6px;
  border-radius: 99px;
  background: rgba(245, 158, 11, 0.22);
  color: #fde68a;
}

.variant-mode-card.active .vm-badge {
  background: #fef3c7;
  color: #92400e;
}

.vm-badge-hot {
  background: #dc2626 !important;
  color: #fff !important;
}

.variant-mode-card strong {
  font-size: 13px;
}

.vm-price-hint {
  font-size: 11.5px;
  font-weight: 800;
  color: #fbbf24;
}

.variant-mode-card.active .vm-price-hint {
  color: var(--accent-leather);
}

/* 4. BÀN LÀM VIỆC 2 CỘT (WORKSPACE LAYOUT) */
.workspace-section {
  padding: 24px 0 44px;
}

.workspace-layout {
  display: grid;
  grid-template-columns: 270px 1fr;
  gap: 22px;
  align-items: flex-start;
}

/* Cột trái: Sticky Sidebar */
.workspace-sidebar {
  position: sticky;
  top: 76px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-height: calc(100vh - 92px);
  overflow-y: auto;
  padding-right: 4px;
}

.ws-box {
  background: #ffffff;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 14px;
  box-shadow: var(--shadow-sm);
}

.ws-box-title {
  font-size: 11.5px;
  font-weight: 900;
  color: var(--bg-saddle);
  letter-spacing: 0.4px;
  padding-bottom: 8px;
  margin-bottom: 8px;
  border-bottom: 1px dashed var(--border-soft);
}

.ws-quick-list,
.ws-cat-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ws-cat-list {
  max-height: 360px;
  overflow-y: auto;
  padding-right: 2px;
}

.ws-quick-btn,
.cat-pill {
  width: 100%;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-main);
  padding: 7px 10px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  transition: all 0.15s;
}

.ws-quick-btn:hover,
.cat-pill:hover {
  background: var(--bg-parchment);
  border-color: var(--border-soft);
}

.ws-quick-btn.active,
.cat-pill.active {
  background: var(--bg-saddle);
  color: #ffffff;
}

.ws-count,
.cat-pill-count {
  font-size: 11px;
  font-weight: 800;
  padding: 1px 7px;
  border-radius: 99px;
  background: var(--bg-parchment);
  color: var(--text-muted);
}

.ws-quick-btn.active .ws-count,
.cat-pill.active .cat-pill-count {
  background: var(--accent-gold);
  color: #1c130c;
}

.ws-count-green {
  background: #dcfce7;
  color: #15803d;
}

.ws-help-box {
  background: linear-gradient(145deg, #2b190d, #432815);
  color: #fff;
  border: 1px dashed var(--accent-gold);
}

.ws-help-box strong {
  display: block;
  font-size: 14px;
  color: #fde68a;
  margin-bottom: 4px;
}

.ws-help-box p {
  font-size: 12px;
  color: #e5d5c3;
  margin-bottom: 10px;
}

/* Cột phải: Main Workspace */
.workspace-main {
  min-width: 0;
}

.ws-toolbar {
  background: #ffffff;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}

.ws-toolbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.ws-toolbar-left h2 {
  font-size: 18px;
  color: var(--bg-saddle);
  font-weight: 900;
}

.ws-result-pill {
  background: var(--bg-parchment);
  border: 1px solid var(--border-soft);
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 12.5px;
  color: var(--text-muted);
}

.ws-result-pill strong {
  color: var(--accent-leather);
}

.reset-filter-link {
  border: none;
  background: #fee2e2;
  color: #b91c1c;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.ws-toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.ws-mode-indicator {
  font-size: 12px;
  background: #fff8f1;
  border: 1px dashed var(--accent-leather);
  padding: 6px 10px;
  border-radius: 8px;
}

.ws-mode-indicator strong {
  color: var(--accent-leather);
}

.ws-toolbar-right select {
  padding: 7px 10px;
  border-radius: 8px;
  border: 1px solid var(--border-stitch);
  background: var(--bg-parchment);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-main);
}

.density-switch {
  display: inline-flex;
  background: var(--bg-parchment);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 2px;
}

.density-btn {
  border: none;
  background: transparent;
  padding: 5px 9px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 800;
  color: var(--text-muted);
  cursor: pointer;
}

.density-btn.active {
  background: var(--bg-saddle);
  color: #fff;
}

/* Lưới Sản Phẩm Rập Mẫu (3 cột hoặc 4 cột) */
.product-grid {
  display: grid;
  gap: 16px;
}

.product-grid.cols-3 {
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
}

.product-grid.cols-4 {
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.18s, box-shadow 0.18s;
  box-shadow: var(--shadow-sm);
}

.product-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-stitch);
}

.card-thumb-wrap {
  position: relative;
  height: 210px;
  background: #f4efe6;
  overflow: hidden;
  cursor: pointer;
}

.product-grid.cols-4 .card-thumb-wrap {
  height: 175px;
}

.card-thumb-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.product-card:hover .card-thumb-wrap img {
  transform: scale(1.04);
}

.card-badges-top {
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  display: flex;
  justify-content: space-between;
  gap: 6px;
  pointer-events: none;
}

.sku-badge {
  background: rgba(28, 19, 12, 0.88);
  color: #fde68a;
  font-size: 11px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 5px;
}

.free-badge {
  background: #15803d;
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 5px;
}

.size-badge {
  background: rgba(255, 255, 255, 0.94);
  color: var(--bg-saddle);
  font-size: 11px;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: 5px;
  border: 1px solid var(--border-stitch);
}

.card-meta-bottom {
  position: absolute;
  bottom: 8px;
  left: 8px;
  right: 8px;
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  pointer-events: none;
}

.meta-chip {
  background: rgba(28, 19, 12, 0.76);
  color: #fff;
  padding: 2px 7px;
  border-radius: 4px;
}

.card-body {
  padding: 12px 14px 14px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 8px;
}

.card-cat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11.5px;
  color: var(--text-muted);
  font-weight: 700;
}

.card-title {
  font-size: 14.5px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.32;
  cursor: pointer;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 38px;
}

.card-title:hover {
  color: var(--accent-leather);
}

/* Bộ chọn 4 biến thể tinh gọn */
.card-variant-pills {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3px;
  background: var(--bg-parchment);
  padding: 3px;
  border-radius: 7px;
  border: 1px solid var(--border-soft);
}

.cv-pill {
  border: none;
  background: transparent;
  padding: 5px 2px;
  border-radius: 5px;
  font-size: 10.5px;
  font-weight: 800;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.14s;
  text-align: center;
}

.cv-pill:hover {
  color: var(--text-main);
}

.cv-pill.active {
  background: var(--bg-saddle);
  color: #fff;
}

.card-footer {
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px dashed var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.price-block {
  display: flex;
  flex-direction: column;
}

.price-current {
  font-size: 17px;
  font-weight: 900;
  color: var(--accent-leather);
  line-height: 1.15;
}

.price-current.is-free {
  color: var(--accent-green);
}

.price-variant-label {
  font-size: 10.5px;
  color: var(--text-muted);
  font-weight: 600;
}

.card-actions {
  display: flex;
  gap: 5px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: 10px;
  font-weight: 800;
  font-size: 13.5px;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.18s;
}

.btn-primary {
  background: var(--accent-gold);
  color: #1c130c;
}

.btn-primary:hover {
  background: #fbbf24;
}

.btn-secondary {
  background: var(--accent-leather);
  color: #fff;
}

.btn-secondary:hover {
  background: var(--accent-leather-hover);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
}

.btn-zalo {
  background: var(--accent-zalo);
  color: #fff;
  width: 100%;
  font-size: 14px;
  padding: 12px 18px;
}

.btn-full {
  width: 100%;
}

.btn-sm {
  padding: 7px 10px;
  font-size: 12px;
  border-radius: 7px;
  font-weight: 800;
  cursor: pointer;
  border: none;
}

.btn-detail {
  background: var(--bg-warm);
  color: var(--bg-saddle);
}

.btn-detail:hover {
  background: #e2d2ba;
}

.btn-add {
  background: var(--bg-saddle);
  color: #fff;
}

.btn-add:hover {
  background: var(--accent-leather);
}

.load-more-wrap {
  text-align: center;
  margin-top: 26px;
}

/* Section Headers */
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.section-eyebrow {
  font-size: 11.5px;
  font-weight: 800;
  color: var(--accent-leather);
  letter-spacing: 0.7px;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(20px, 2.2vw, 26px);
  color: var(--bg-saddle);
  margin: 3px 0 4px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 13.5px;
  max-width: 680px;
}

/* 5. Tools & Accessories Section */
.tools-section {
  padding: 44px 0;
  background: var(--bg-warm);
  border-top: 2px dashed var(--border-stitch);
}

.tools-filter-tabs,
.books-folder-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tool-tab,
.book-tab {
  padding: 7px 13px;
  border-radius: 99px;
  border: 1px solid var(--border-stitch);
  background: #fff;
  font-size: 12.5px;
  font-weight: 800;
  cursor: pointer;
}

.tool-tab.active {
  background: var(--accent-leather);
  color: #fff;
  border-color: var(--accent-leather);
}

.book-tab.active {
  background: var(--accent-zalo);
  color: #fff;
  border-color: var(--accent-zalo);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(285px, 1fr));
  gap: 16px;
}

.tool-card {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.tool-specs-list {
  list-style: none;
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.tool-specs-list li::before {
  content: "✓ ";
  color: var(--accent-green);
  font-weight: 800;
}

/* 6. Free Books Zalo Section */
.free-books-section {
  padding: 44px 0;
  background: #f8f4ec;
  border-top: 2px dashed var(--border-stitch);
  border-bottom: 2px dashed var(--border-stitch);
}

.zalo-book-banner {
  background: linear-gradient(135deg, #0b2545 0%, #134074 55%, #1d4ed8 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 26px;
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 24px;
  align-items: center;
  border: 2px dashed #60a5fa;
  box-shadow: var(--shadow-md);
}

.zbb-badge {
  display: inline-block;
  background: rgba(251, 191, 36, 0.2);
  color: #fde68a;
  border: 1px solid rgba(251, 191, 36, 0.5);
  font-size: 11px;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 99px;
  margin-bottom: 8px;
}

.zbb-left h2 {
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.25;
  margin-bottom: 8px;
}

.zbb-left p {
  font-size: 13.5px;
  color: #dbeafe;
  margin-bottom: 12px;
}

.zbb-perks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.zbb-perks span {
  background: rgba(255, 255, 255, 0.12);
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  color: #f8fafc;
}

.zbb-card {
  background: #ffffff;
  color: var(--text-main);
  padding: 18px;
  border-radius: 12px;
}

.zbb-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.zbb-zalo-pill {
  background: var(--accent-zalo);
  color: #ffffff;
  font-size: 10.5px;
  font-weight: 900;
  padding: 2px 7px;
  border-radius: 5px;
}

.zbb-card p {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(235px, 1fr));
  gap: 16px;
}

.book-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s;
}

.book-card:hover {
  transform: translateY(-3px);
}

.book-cover-wrap {
  position: relative;
  height: 240px;
  background: #23160d;
  overflow: hidden;
  cursor: pointer;
}

.book-cover-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.book-folder-badge {
  background: rgba(0, 104, 255, 0.92);
  color: #ffffff;
  font-size: 10.5px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 5px;
}

/* 7. Guide & Comparison */
.guide-section {
  padding: 44px 0;
}

.guide-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 20px;
}

.comparison-card,
.printing-guide-card {
  background: #fff;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}

.comparison-card h3,
.printing-guide-card h3 {
  font-size: 18px;
  color: var(--bg-saddle);
  margin: 4px 0 12px;
}

.table-responsive {
  overflow-x: auto;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.compare-table th,
.compare-table td {
  padding: 9px 10px;
  border: 1px solid var(--border-soft);
  text-align: left;
}

.compare-table th {
  background: var(--bg-warm);
  color: var(--bg-saddle);
  font-weight: 800;
}

.guide-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.guide-steps li {
  background: var(--bg-parchment);
  padding: 10px 12px;
  border-radius: 8px;
  border-left: 3px solid var(--accent-leather);
}

.guide-steps strong {
  display: block;
  font-size: 13.5px;
  color: var(--bg-saddle);
}

.guide-steps p {
  font-size: 12.5px;
  color: var(--text-muted);
}

/* 8. Consultation Section */
.consult-section {
  padding: 12px 0 48px;
}

.consult-box {
  background: linear-gradient(135deg, #2b190d, #432815);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 30px;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 28px;
  border: 2px dashed var(--accent-gold);
}

.consult-info h2 {
  font-size: 24px;
  margin: 6px 0 10px;
  color: #fde68a;
}

.consult-info p {
  color: #e5d5c3;
  font-size: 14px;
  margin-bottom: 16px;
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.contact-card-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.08);
  padding: 9px 12px;
  border-radius: 8px;
}

.cc-icon {
  font-size: 20px;
}

.contact-card-item small {
  display: block;
  font-size: 11px;
  color: #d6c3ad;
}

.contact-card-item strong {
  font-size: 14px;
  color: #fff;
}

.consult-form {
  background: #fff;
  color: var(--text-main);
  padding: 20px;
  border-radius: 12px;
}

.consult-form h3 {
  font-size: 17px;
  margin-bottom: 12px;
  color: var(--bg-saddle);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.form-field {
  margin-bottom: 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-field label {
  font-size: 12px;
  font-weight: 700;
  color: var(--bg-saddle);
}

.form-field input,
.form-field select,
.form-field textarea {
  padding: 9px 11px;
  border-radius: 7px;
  border: 1px solid var(--border-stitch);
  font-size: 13px;
  font-family: inherit;
}

.form-feedback {
  margin-top: 8px;
  padding: 9px;
  border-radius: 7px;
  background: #dcfce7;
  color: #166534;
  font-size: 12.5px;
  font-weight: 700;
}

/* Footer */
.site-footer {
  background: var(--bg-espresso);
  color: #d8c7b4;
  padding: 36px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 28px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand .brand-title {
  color: #fde68a;
}

.footer-brand .brand-sub {
  color: #cbb59d;
}

.footer-desc {
  margin-top: 10px;
  font-size: 13px;
  max-width: 400px;
}

.footer-contact-meta {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
}

.footer-contact-meta a {
  color: #fde68a;
  text-decoration: none;
}

.site-footer h4 {
  color: #fff;
  margin-bottom: 10px;
  font-size: 14.5px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-size: 13px;
}

.footer-links a {
  color: #d8c7b4;
  text-decoration: none;
}

.footer-links a:hover {
  color: #fde68a;
}

.footer-bottom {
  padding-top: 16px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(20, 12, 6, 0.72);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow-y: auto;
}

.modal-dialog {
  background: #fff;
  border-radius: var(--radius-lg);
  width: 100%;
  max-height: 92vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-lg);
  padding: 24px;
}

.modal-xl {
  max-width: 1060px;
}

.modal-lg {
  max-width: 760px;
}

.modal-close-btn {
  position: sticky;
  top: 0;
  float: right;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--border-soft);
  background: #fff;
  font-size: 15px;
  cursor: pointer;
  z-index: 10;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 24px;
}

.detail-main-img {
  width: 100%;
  height: 350px;
  object-fit: contain;
  background: #f6f1e9;
  border-radius: 10px;
  border: 1px solid var(--border-soft);
}

.detail-thumbs {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.detail-thumb-btn {
  width: 64px;
  height: 64px;
  border-radius: 7px;
  border: 2px solid transparent;
  overflow: hidden;
  cursor: pointer;
  flex-shrink: 0;
  background: #f6f1e9;
}

.detail-thumb-btn.active {
  border-color: var(--accent-leather);
}

.detail-thumb-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pdf-preview-frame {
  width: 100%;
  height: 350px;
  border-radius: 10px;
  border: 1px solid var(--border-stitch);
}

.detail-variant-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 12px 0;
}

.detail-variant-option {
  border: 1.5px solid var(--border-stitch);
  border-radius: 9px;
  padding: 10px;
  cursor: pointer;
  background: #fff;
  text-align: left;
}

.detail-variant-option.active {
  border: 2px solid var(--accent-leather);
  background: #fff8f1;
}

.dvo-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12.5px;
  font-weight: 800;
}

.dvo-price {
  color: var(--accent-leather);
  font-size: 14.5px;
  font-weight: 900;
}

.dvo-lead {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  margin: 12px 0;
}

.specs-table td {
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-soft);
}

.specs-table td:first-child {
  font-weight: 700;
  color: var(--text-muted);
  width: 40%;
}

.cross-sell-box {
  margin-top: 14px;
  padding: 12px;
  border-radius: 10px;
  background: var(--bg-parchment);
  border: 1px dashed var(--border-stitch);
}

.cross-sell-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border-soft);
  font-size: 12.5px;
}

.cross-sell-item:last-child {
  border-bottom: none;
}

.vietqr-box {
  background: var(--bg-parchment);
  border: 2px dashed var(--accent-leather);
  border-radius: 12px;
  padding: 16px;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 18px;
  align-items: center;
  margin-top: 14px;
}

.vietqr-box img {
  width: 100%;
  border-radius: 8px;
  background: #fff;
}

/* Floating Contact Button */
.floating-contact {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 120;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
}

.float-btn {
  background: var(--accent-leather);
  color: #fff;
  border: 2px solid #fde68a;
  padding: 10px 16px;
  border-radius: 99px;
  font-weight: 800;
  font-size: 13px;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.float-zalo {
  background: var(--accent-zalo);
  border-color: #ffffff;
}

@media (max-width: 1024px) {
  .compact-hero-inner,
  .workspace-layout,
  .zalo-book-banner,
  .guide-grid,
  .consult-box,
  .detail-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .workspace-sidebar {
    position: static;
    max-height: none;
  }
  .ws-cat-list {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    max-height: none;
  }
  .cat-pill {
    width: auto;
  }
  .header-quick-nav {
    display: none;
  }
}