/**
 * ==========================================================================
 * CASA — BÀI VIẾT LANDING PAGE BLOG: 10 MẪU GIƯỜNG TẦNG HIỆN ĐẠI
 * Tối ưu trải nghiệm đọc (Editorial) & Tối đa tỷ lệ chuyển đổi (CRO)
 * File: casa-blog.css
 * Vị trí: dist/pages/blog/assets/casa-blog.css
 * ==========================================================================
 */

/* --------------------------------------------------------------------------
   0. DESIGN TOKENS & CSS VARIABLES
   -------------------------------------------------------------------------- */
:root {
  --casa-orange: #ff9e22;
  --casa-orange-hover: #e58b19;
  --casa-orange-light: #fff5e6;
  --casa-orange-glow: rgba(255, 158, 34, 0.22);
  --casa-ink: #171714;
  --casa-ink-light: #2c2b27;
  --casa-warm: #fff7ec;
  --casa-white: #ffffff;
  --casa-stone: #e8e5df;
  --casa-stone-light: #f7f5f2;
  --casa-muted: #6d6c67;
  --casa-muted-light: #9c9a94;
  --casa-border: #ded8ce;
  --casa-success: #2e7d32;
  --casa-danger: #c62828;
  --casa-head: "Quicksand", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --casa-body: "Arimo", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --casa-container: 1180px;
  --casa-article-w: 960px;
  --casa-radius: 8px;
  --casa-radius-lg: 16px;
  --casa-radius-xl: 24px;
  --casa-action: 6px;
  --casa-shadow-sm: 0 4px 12px rgba(23, 23, 20, 0.05);
  --casa-shadow: 0 12px 36px rgba(23, 23, 20, 0.08);
  --casa-shadow-hover: 0 20px 48px rgba(23, 23, 20, 0.14);
  --casa-ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --casa-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   1. RESET & BASE BLOG ARTICLE STYLING
   -------------------------------------------------------------------------- */
.casa-blog-wrapper {
  color: var(--casa-ink);
  background-color: #ffffff;
  font-family: var(--casa-body);
  font-size: 16.5px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: clip;
  padding: 24px 0 80px;
}

.casa-blog-wrapper * {
  box-sizing: border-box;
}

.casa-blog-wrapper img {
  display: block;
  max-width: 100%;
  height: auto;
}

.casa-blog-container {
  width: 100%;
  max-width: var(--casa-container);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(16px, 4vw, 32px);
  padding-right: clamp(16px, 4vw, 32px);
}

/* --------------------------------------------------------------------------
   2. BREADCRUMBS & ARTICLE HEADER
   -------------------------------------------------------------------------- */
.casa-blog-breadcrumbs {
  padding: 10px 0 16px;
  font-size: 13.5px;
  color: var(--casa-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex-wrap: wrap;
  gap: 8px;
}

.casa-blog-breadcrumbs a {
  color: var(--casa-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.casa-blog-breadcrumbs a:hover {
  color: var(--casa-orange);
}

.casa-blog-breadcrumbs span.sep {
  color: var(--casa-stone);
  font-size: 12px;
}

.casa-blog-breadcrumbs span.current {
  color: var(--casa-ink);
  font-weight: 600;
}

/* Header Area */
.casa-blog-header {
  padding: 12px 0 32px;
  max-width: var(--casa-article-w);
  margin: 0 auto;
}

.casa-blog-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--casa-orange-light);
  color: var(--casa-orange-hover);
  border: 1px solid var(--casa-orange-glow);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.casa-blog-badge svg {
  width: 14px;
  height: 14px;
}

.casa-blog-title {
  font-family: var(--casa-head);
  font-size: clamp(30px, 4.2vw, 46px);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -0.03em;
  color: var(--casa-ink);
  margin: 0 0 18px 0;
}

.casa-blog-title em {
  font-style: normal;
  color: var(--casa-orange);
  background: linear-gradient(180deg, transparent 65%, var(--casa-orange-light) 65%);
  padding: 0 4px;
}

.casa-blog-lead {
  font-size: clamp(16.5px, 2vw, 19px);
  line-height: 1.65;
  color: var(--casa-muted);
  margin-bottom: 26px;
}

/* Meta Bar (Author, Date, Read Time, Actions) */
.casa-blog-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--casa-stone);
  border-bottom: 1px solid var(--casa-stone);
}

.casa-meta-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.casa-author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--casa-orange-light);
}

.casa-author-info {
  display: flex;
  flex-direction: column;
}

.casa-author-name {
  font-weight: 700;
  font-size: 14.5px;
  color: var(--casa-ink);
  display: flex;
  align-items: center;
  gap: 6px;
}

.casa-author-badge {
  background: #e8f5e9;
  color: var(--casa-success);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
}

.casa-meta-details {
  font-size: 13px;
  color: var(--casa-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.casa-meta-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.casa-btn-share {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--casa-action);
  border: 1px solid var(--casa-stone);
  background: #fff;
  color: var(--casa-ink);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.casa-btn-share:hover {
  border-color: var(--casa-orange);
  color: var(--casa-orange);
  background: var(--casa-orange-light);
}

/* --------------------------------------------------------------------------
   3. HERO MEDIA & FIXED KEY TAKEAWAYS (FIX LỆCH STYLE)
   -------------------------------------------------------------------------- */
.casa-blog-featured-media {
  position: relative;
  max-width: var(--casa-container);
  margin: 0 auto 36px;
  border-radius: var(--casa-radius-lg);
  overflow: hidden;
  box-shadow: var(--casa-shadow);
}

.casa-blog-featured-media img {
  width: 100%;
  height: clamp(340px, 48vw, 540px);
  object-fit: cover;
}

.casa-featured-badge-float {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: rgba(23, 23, 20, 0.88);
  backdrop-filter: blur(10px);
  color: #fff;
  padding: 14px 20px;
  border-radius: var(--casa-radius);
  border-left: 4px solid var(--casa-orange);
  max-width: 480px;
}

.casa-featured-badge-float strong {
  display: block;
  font-size: 15px;
  font-family: var(--casa-head);
  color: #fff;
  margin-bottom: 4px;
}

.casa-featured-badge-float span {
  font-size: 13px;
  color: #c9c5bd;
}

/* KEY TAKEAWAYS BOX - FIX HOÀN TOÀN LỖI CO CỘT / LỆCH DÒNG */
.casa-takeaway-box {
  background: var(--casa-warm);
  border: 1px solid var(--casa-border);
  border-left: 5px solid var(--casa-orange);
  border-radius: var(--casa-radius);
  padding: 24px 28px;
  margin: 36px auto;
  max-width: var(--casa-article-w);
  box-shadow: var(--casa-shadow-sm);
}

.casa-takeaway-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--casa-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--casa-ink);
  margin: 0 0 16px 0;
}

.casa-takeaway-title svg {
  color: var(--casa-orange);
  flex-shrink: 0;
}

.casa-takeaway-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.casa-takeaway-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--casa-ink-light);
}

.casa-takeaway-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--casa-orange);
  margin-top: 2px;
}

.casa-takeaway-icon svg {
  width: 17px;
  height: 17px;
  display: block;
}

.casa-takeaway-content {
  flex: 1;
  min-width: 0;
}

.casa-takeaway-content strong {
  font-weight: 700;
  color: var(--casa-ink);
  margin-right: 4px;
  display: inline;
}

/* --------------------------------------------------------------------------
   4. ARTICLE CONTENT CONTAINER (STANDALONE CLEAN LAYOUT)
   -------------------------------------------------------------------------- */
.casa-blog-layout {
  max-width: var(--casa-article-w);
  margin: 0 auto;
  padding-bottom: 60px;
}

.casa-blog-content {
  width: 100%;
}

/* Editorial Content Typography */
.casa-blog-content h2.section-heading {
  font-family: var(--casa-head);
  font-size: clamp(23px, 3.2vw, 32px);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.025em;
  color: var(--casa-ink);
  margin: 48px 0 20px 0;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--casa-stone-light);
  position: relative;
}

.casa-blog-content h2.section-heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 60px;
  height: 2px;
  background: var(--casa-orange);
}

.casa-blog-content p {
  margin-bottom: 1.4em;
  color: #2b2a26;
  font-size: 16.5px;
  line-height: 1.78;
}

.casa-dropcap::first-letter {
  font-family: var(--casa-head);
  float: left;
  font-size: 48px;
  line-height: 0.85;
  padding-top: 4px;
  padding-right: 10px;
  padding-bottom: 2px;
  color: var(--casa-orange);
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   5. INTERACTIVE FILTER TABS
   -------------------------------------------------------------------------- */
.casa-model-filters {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 32px 0 28px;
  padding: 10px;
  background: var(--casa-stone-light);
  border-radius: var(--casa-radius);
  border: 1px solid var(--casa-stone);
}

.casa-filter-btn {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--casa-action);
  font-family: var(--casa-body);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--casa-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.casa-filter-btn:hover {
  color: var(--casa-ink);
  background: rgba(255, 255, 255, 0.7);
}

.casa-filter-btn.is-active {
  background: #ffffff;
  color: var(--casa-ink);
  font-weight: 700;
  border-color: var(--casa-border);
  box-shadow: var(--casa-shadow-sm);
}

.casa-filter-btn.is-active .count-badge {
  background: var(--casa-orange);
  color: #fff;
}

.casa-filter-btn .count-badge {
  display: inline-block;
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--casa-stone);
  color: var(--casa-muted);
  margin-left: 5px;
}

/* --------------------------------------------------------------------------
   6. PRODUCT SHOWCASE CARDS
   -------------------------------------------------------------------------- */
.casa-models-list {
  display: flex;
  flex-direction: column;
  gap: 48px;
  margin-top: 32px;
}

.casa-model-card {
  background: #ffffff;
  border: 1px solid var(--casa-border);
  border-radius: var(--casa-radius-lg);
  overflow: hidden;
  box-shadow: var(--casa-shadow-sm);
  transition: all 0.3s var(--casa-ease);
}

.casa-model-card:hover {
  box-shadow: var(--casa-shadow-hover);
  border-color: var(--casa-orange);
  transform: translateY(-3px);
}

.casa-model-card-badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--casa-stone-light);
  border-bottom: 1px solid var(--casa-stone);
}

.casa-model-num-tag {
  font-family: var(--casa-head);
  font-size: 13px;
  font-weight: 700;
  color: var(--casa-orange-hover);
  display: flex;
  align-items: center;
  gap: 6px;
}

.casa-model-highlight-tag {
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--casa-orange-light);
  color: var(--casa-orange-hover);
  border: 1px solid var(--casa-orange-glow);
}

.casa-model-visual {
  position: relative;
  overflow: hidden;
  background: #f0eee9;
}

.casa-model-visual img {
  width: 100%;
  height: clamp(280px, 38vw, 440px);
  object-fit: cover;
  transition: transform 0.6s var(--casa-ease-out);
}

.casa-model-card:hover .casa-model-visual img {
  transform: scale(1.03);
}

.casa-model-visual-overlay {
  position: absolute;
  top: 16px;
  right: 16px;
  display: flex;
  gap: 8px;
}

.casa-zoom-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(4px);
  border: none;
  display: grid;
  place-items: center;
  color: var(--casa-ink);
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.casa-zoom-btn:hover {
  background: var(--casa-orange);
  color: #fff;
  transform: scale(1.08);
}

.casa-model-body {
  padding: clamp(20px, 4vw, 32px);
}

.casa-model-title {
  font-family: var(--casa-head);
  font-size: clamp(20px, 2.8vw, 25px);
  font-weight: 700;
  color: var(--casa-ink);
  margin: 0 0 10px 0;
  line-height: 1.3;
}

.casa-model-desc {
  font-size: 15px;
  color: var(--casa-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.casa-spec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  background: var(--casa-stone-light);
  padding: 16px;
  border-radius: var(--casa-radius);
  margin-bottom: 22px;
}

.casa-spec-item {
  display: flex;
  flex-direction: column;
}

.casa-spec-label {
  font-size: 11.5px;
  color: var(--casa-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
  margin-bottom: 2px;
}

.casa-spec-val {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--casa-ink);
}

.casa-model-highlights {
  margin: 0 0 24px 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.casa-model-highlights li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14.5px;
  color: var(--casa-ink-light);
}

.casa-model-highlights li svg {
  color: var(--casa-success);
  width: 17px;
  height: 17px;
  flex-shrink: 0;
  margin-top: 3px;
}

.casa-model-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--casa-stone);
}

.casa-model-price-wrap {
  display: flex;
  flex-direction: column;
}

.casa-price-label {
  font-size: 11.5px;
  color: var(--casa-muted);
  text-transform: uppercase;
  font-weight: 600;
}

.casa-price-val {
  font-family: var(--casa-head);
  font-size: clamp(21px, 2.5vw, 26px);
  font-weight: 700;
  color: var(--casa-orange-hover);
}

.casa-price-saving {
  font-size: 11.5px;
  color: var(--casa-success);
  font-weight: 600;
}

.casa-model-cta-btns {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.casa-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  background: var(--casa-orange);
  color: var(--casa-ink);
  font-family: var(--casa-head);
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--casa-action);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.casa-btn-primary:hover {
  background: var(--casa-orange-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px var(--casa-orange-glow);
}

.casa-btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  background: transparent;
  color: var(--casa-ink);
  font-family: var(--casa-head);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--casa-action);
  text-decoration: none;
  border: 1px solid var(--casa-stone);
  cursor: pointer;
  transition: all 0.2s ease;
}

.casa-btn-outline:hover {
  border-color: var(--casa-ink);
  background: var(--casa-stone-light);
}

/* --------------------------------------------------------------------------
   7. INTERACTIVE BED COST ESTIMATOR
   -------------------------------------------------------------------------- */
.casa-calculator-box {
  background: linear-gradient(145deg, #ffffff, var(--casa-warm));
  border: 2px solid var(--casa-orange);
  border-radius: var(--casa-radius-lg);
  padding: clamp(24px, 4vw, 36px);
  margin: 50px 0;
  box-shadow: var(--casa-shadow);
  position: relative;
}

.casa-calc-badge {
  position: absolute;
  top: -14px;
  left: 32px;
  background: var(--casa-orange);
  color: #fff;
  font-family: var(--casa-head);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.casa-calc-head h3 {
  font-family: var(--casa-head);
  font-size: clamp(20px, 2.8vw, 26px);
  font-weight: 700;
  margin: 8px 0 6px 0;
  color: var(--casa-ink);
}

.casa-calc-head p {
  font-size: 14.5px;
  color: var(--casa-muted);
  margin-bottom: 24px;
}

.casa-calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.casa-calc-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.casa-calc-group label {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--casa-ink);
}

.casa-calc-group select,
.casa-calc-group input {
  padding: 10px 14px;
  border: 1px solid var(--casa-border);
  border-radius: var(--casa-action);
  font-family: var(--casa-body);
  font-size: 14.5px;
  color: var(--casa-ink);
  background: #fff;
  outline: none;
  transition: border-color 0.2s ease;
}

.casa-calc-group select:focus,
.casa-calc-group input:focus {
  border-color: var(--casa-orange);
}

.casa-calc-addons {
  background: #fff;
  padding: 16px;
  border-radius: var(--casa-radius);
  border: 1px solid var(--casa-stone);
  margin-bottom: 24px;
}

.casa-addons-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--casa-muted);
  margin-bottom: 12px;
}

.casa-addons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.casa-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--casa-ink-light);
  cursor: pointer;
}

.casa-checkbox-label input {
  accent-color: var(--casa-orange);
  width: 17px;
  height: 17px;
}

.casa-calc-result-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 20px;
  background: var(--casa-ink);
  color: #fff;
  border-radius: var(--casa-radius);
}

.casa-result-left strong {
  display: block;
  font-size: 12.5px;
  color: #a8a59f;
  text-transform: uppercase;
}

.casa-result-left span.calc-price {
  font-family: var(--casa-head);
  font-size: clamp(24px, 3.2vw, 32px);
  font-weight: 700;
  color: var(--casa-orange);
}

/* --------------------------------------------------------------------------
   8. 5 SAFETY RULES & BUYING GUIDE
   -------------------------------------------------------------------------- */
.casa-safety-box {
  margin: 48px 0;
  background: #ffffff;
  border: 1px solid var(--casa-border);
  border-radius: var(--casa-radius-lg);
  padding: clamp(24px, 4vw, 36px);
}

.casa-safety-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.casa-safety-card {
  padding: 20px;
  background: var(--casa-stone-light);
  border-radius: var(--casa-radius);
  border-left: 4px solid var(--casa-orange);
}

.casa-safety-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--casa-orange-light);
  color: var(--casa-orange-hover);
  display: grid;
  place-items: center;
  margin-bottom: 12px;
}

.casa-safety-card h4 {
  font-family: var(--casa-head);
  font-size: 16px;
  margin: 0 0 8px 0;
  color: var(--casa-ink);
}

.casa-safety-card p {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--casa-muted);
  margin: 0;
}

/* --------------------------------------------------------------------------
   9. COMPARISON TABLE
   -------------------------------------------------------------------------- */
.casa-table-wrap {
  margin: 40px 0;
  overflow-x: auto;
  border: 1px solid var(--casa-border);
  border-radius: var(--casa-radius-lg);
  box-shadow: var(--casa-shadow-sm);
}

.casa-compare-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14.5px;
  background: #fff;
}

.casa-compare-table th,
.casa-compare-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--casa-stone);
}

.casa-compare-table thead th {
  font-family: var(--casa-head);
  font-weight: 700;
  font-size: 15px;
}

.casa-compare-table thead th.col-casa {
  background: var(--casa-orange-light);
  color: var(--casa-orange-hover);
  border-top: 3px solid var(--casa-orange);
}

.casa-compare-table tbody tr:hover {
  background-color: var(--casa-stone-light);
}

.casa-check-yes {
  color: var(--casa-success);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

.casa-check-no {
  color: var(--casa-danger);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* --------------------------------------------------------------------------
   10. SOCIAL PROOF & TESTIMONIALS
   -------------------------------------------------------------------------- */
.casa-testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin: 32px 0 48px;
}

.casa-testi-card {
  background: var(--casa-stone-light);
  border: 1px solid var(--casa-border);
  border-radius: var(--casa-radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.casa-testi-stars {
  color: #f59e0b;
  font-size: 16px;
  margin-bottom: 10px;
  letter-spacing: 2px;
}

.casa-testi-quote {
  font-size: 14px;
  font-style: italic;
  color: var(--casa-ink-light);
  line-height: 1.65;
  margin-bottom: 16px;
}

.casa-testi-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.casa-testi-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.casa-testi-info strong {
  display: block;
  font-size: 13.5px;
  color: var(--casa-ink);
}

.casa-testi-info span {
  font-size: 12px;
  color: var(--casa-muted);
}

/* --------------------------------------------------------------------------
   11. LEAD GENERATION FORM
   -------------------------------------------------------------------------- */
.casa-blog-leadform-section {
  background: var(--casa-ink);
  color: #fff;
  border-radius: var(--casa-radius-xl);
  padding: clamp(32px, 6vw, 56px);
  margin: 56px 0;
  position: relative;
  overflow: hidden;
}

.casa-leadform-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(32px, 5vw, 60px);
  align-items: center;
}

.casa-leadform-badge {
  display: inline-block;
  background: rgba(255, 158, 34, 0.2);
  color: var(--casa-orange);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.casa-leadform-info h3 {
  font-family: var(--casa-head);
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 16px 0;
  color: #fff;
}

.casa-leadform-info h3 em {
  font-style: normal;
  color: var(--casa-orange);
}

.casa-leadform-info p {
  color: #bfbcb6;
  font-size: 15.5px;
  line-height: 1.7;
  margin-bottom: 24px;
}

.casa-leadform-perks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.casa-leadform-perks li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14.5px;
  color: #e5e2db;
}

.casa-leadform-perks li svg {
  color: var(--casa-orange);
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.casa-form-box {
  background: #ffffff;
  color: var(--casa-ink);
  padding: clamp(24px, 4vw, 36px);
  border-radius: var(--casa-radius-lg);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.casa-form-box h4 {
  font-family: var(--casa-head);
  font-size: 20px;
  margin: 0 0 6px 0;
  color: var(--casa-ink);
}

.casa-form-box p.subtext {
  font-size: 13px;
  color: var(--casa-muted);
  margin-bottom: 20px;
}

.casa-form-field {
  margin-bottom: 14px;
}

.casa-form-field label {
  display: block;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--casa-ink);
  margin-bottom: 5px;
}

.casa-form-field input,
.casa-form-field select,
.casa-form-field textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--casa-border);
  border-radius: var(--casa-action);
  font-family: var(--casa-body);
  font-size: 14px;
  color: var(--casa-ink);
  background: #faf9f7;
  transition: all 0.2s ease;
  outline: none;
}

.casa-form-field input:focus,
.casa-form-field select:focus,
.casa-form-field textarea:focus {
  border-color: var(--casa-orange);
  background: #fff;
}

.casa-btn-submit-lead {
  width: 100%;
  padding: 13px;
  background: var(--casa-orange);
  color: var(--casa-ink);
  font-family: var(--casa-head);
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--casa-action);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
}

.casa-btn-submit-lead:hover {
  background: var(--casa-orange-hover);
  color: #fff;
  transform: translateY(-2px);
}

.casa-form-privacy {
  margin-top: 12px;
  font-size: 11.5px;
  color: var(--casa-muted-light);
  text-align: center;
}

/* --------------------------------------------------------------------------
   12. FAQ ACCORDION
   -------------------------------------------------------------------------- */
.casa-faq-section {
  margin: 48px 0;
}

.casa-faq-item {
  border: 1px solid var(--casa-border);
  border-radius: var(--casa-radius);
  margin-bottom: 12px;
  background: #fff;
  overflow: hidden;
  transition: all 0.2s ease;
}

.casa-faq-question {
  width: 100%;
  text-align: left;
  padding: 18px 22px;
  background: none;
  border: none;
  font-family: var(--casa-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--casa-ink);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
}

.casa-faq-question:hover {
  color: var(--casa-orange);
}

.casa-faq-icon {
  width: 24px;
  height: 24px;
  min-width: 24px;
  min-height: 24px;
  max-width: 24px;
  max-height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 400;
  line-height: 1;
  color: var(--casa-orange);
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

svg.casa-faq-icon,
.casa-faq-icon svg {
  width: 18px;
  height: 18px;
  max-width: 18px;
  max-height: 18px;
  flex-shrink: 0;
}

.casa-faq-item.is-open .casa-faq-icon {
  transform: rotate(45deg);
}

.casa-faq-answer {
  display: none;
  padding: 0 22px 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--casa-muted);
}

.casa-faq-item.is-open .casa-faq-answer {
  display: block;
}

/* --------------------------------------------------------------------------
   13. STICKY BOTTOM CONVERSION BAR WITH INTEGRATED PROGRESS BAR
   -------------------------------------------------------------------------- */
.casa-sticky-cta-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(23, 23, 20, 0.95);
  backdrop-filter: blur(14px);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 12px 20px;
  z-index: 1000;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.22);
  transform: translateY(120%);
  transition: transform 0.35s var(--casa-ease);
}

.casa-sticky-cta-bar.is-visible {
  transform: translateY(0);
}

/* Reading Progress Bar nằm ở mép trên của Sticky Bottom Bar */
.casa-sticky-progress-bar {
  position: absolute;
  top: -2px;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--casa-orange), #ffbf47);
  box-shadow: 0 0 8px rgba(255, 158, 34, 0.7);
  transition: width 0.08s ease-out;
}

.casa-sticky-cta-inner {
  max-width: var(--casa-container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.casa-sticky-text {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
}

.casa-sticky-text .pill {
  background: var(--casa-orange);
  color: var(--casa-ink);
  font-size: 11px;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: var(--casa-action);
  text-transform: uppercase;
}

.casa-sticky-text span.title {
  font-family: var(--casa-head);
  font-size: 14.5px;
  font-weight: 700;
}

.casa-sticky-text span.sub {
  font-size: 13px;
  color: #bfbcb6;
}

.casa-sticky-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.casa-btn-sticky-call {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-radius: var(--casa-action);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 600;
  transition: background 0.2s ease;
}

.casa-btn-sticky-call:hover {
  background: rgba(255, 255, 255, 0.22);
}

/* --------------------------------------------------------------------------
   14. QUICK QUOTE MODAL POPUP
   -------------------------------------------------------------------------- */
.casa-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(5px);
  z-index: 1050;
  display: grid;
  place-items: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.casa-modal-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.casa-modal-content {
  width: 100%;
  max-width: 520px;
  background: #fff;
  border-radius: var(--casa-radius-lg);
  padding: clamp(24px, 5vw, 36px);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.35);
  position: relative;
  transform: scale(0.95);
  transition: transform 0.25s var(--casa-ease);
}

.casa-modal-overlay.is-open .casa-modal-content {
  transform: scale(1);
}

.casa-modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 32px;
  height: 32px;
  border: none;
  background: var(--casa-stone-light);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 18px;
  color: var(--casa-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.casa-modal-close:hover {
  background: var(--casa-orange);
  color: #fff;
}

/* --------------------------------------------------------------------------
   15. RESPONSIVE MEDIA QUERIES
   -------------------------------------------------------------------------- */
@media (max-width: 1040px) {
  .casa-leadform-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .casa-sticky-text span.sub {
    display: none;
  }
  .casa-calc-result-bar {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
  .casa-model-footer {
    flex-direction: column;
    align-items: stretch;
  }
  .casa-model-cta-btns {
    flex-direction: column;
  }
  .casa-model-cta-btns a,
  .casa-model-cta-btns button {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 520px) {
  .casa-meta-actions {
    width: 100%;
    justify-content: flex-start;
  }
  .casa-sticky-text span.title {
    font-size: 12.5px;
  }
  .casa-btn-primary,
  .casa-btn-outline {
    padding: 9px 14px;
    font-size: 13px;
  }
}

/* ==========================================================================
   INTERACTIVE SAFETY QUIZ & AGE GUIDE EXTENSIONS (DÙNG CHUNG)
   ========================================================================== */
.casa-quiz-box {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  border: 2px solid #e2e8f0;
  border-radius: 20px;
  padding: 32px;
  margin: 36px 0;
  box-shadow: 0 10px 30px rgba(13, 59, 102, 0.06);
  position: relative;
  overflow: hidden;
}

.casa-quiz-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, #ff9e22, #0d3b66);
}

.casa-quiz-header {
  text-align: center;
  margin-bottom: 28px;
}

.casa-quiz-badge {
  display: inline-block;
  background: rgba(255, 158, 34, 0.15);
  color: #d97706;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.casa-quiz-title {
  font-family: var(--casa-head);
  font-size: 24px;
  font-weight: 700;
  color: #0d3b66;
  margin: 0 0 8px;
}

.casa-quiz-subtitle {
  font-size: 14.5px;
  color: #64748b;
  margin: 0;
}

.casa-quiz-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.casa-quiz-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.casa-quiz-label {
  font-size: 14px;
  font-weight: 700;
  color: #1e293b;
  display: flex;
  align-items: center;
  gap: 6px;
}

.casa-quiz-select {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid #cbd5e1;
  border-radius: 10px;
  font-size: 14px;
  color: #1e293b;
  background-color: #ffffff;
  outline: none;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.casa-quiz-select:focus {
  border-color: #ff9e22;
  box-shadow: 0 0 0 3px rgba(255, 158, 34, 0.15);
}

.casa-quiz-result {
  background: #ffffff;
  border: 1.5px solid #ffedd5;
  border-left: 5px solid #ff9e22;
  border-radius: 12px;
  padding: 20px 24px;
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.casa-quiz-result-text {
  flex: 1;
  min-width: 260px;
}

.casa-quiz-result-title {
  font-family: var(--casa-head);
  font-size: 16px;
  font-weight: 700;
  color: #c2410c;
  margin: 0 0 4px;
}

.casa-quiz-result-desc {
  font-size: 14px;
  color: #475569;
  line-height: 1.5;
  margin: 0;
}

/* Age Guide Cards */
.casa-age-guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin: 32px 0;
}

.casa-age-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
  transition: transform 0.2s ease, border-color 0.2s ease;
  position: relative;
  display: flex;
  flex-direction: column;
}

.casa-age-card:hover {
  transform: translateY(-4px);
  border-color: #ff9e22;
}

.casa-age-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  width: fit-content;
  margin-bottom: 12px;
}

.casa-age-badge.warn {
  background: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
}

.casa-age-badge.caution {
  background: #fffbeb;
  color: #d97706;
  border: 1px solid #fde68a;
}

.casa-age-badge.safe {
  background: #f0fdf4;
  color: #16a34a;
  border: 1px solid #bbf7d0;
}

.casa-age-title {
  font-family: var(--casa-head);
  font-size: 18px;
  font-weight: 700;
  color: #0d3b66;
  margin: 0 0 8px;
}

.casa-age-desc {
  font-size: 13.5px;
  color: #64748b;
  line-height: 1.6;
  margin: 0 0 16px;
  flex-grow: 1;
}

.casa-age-specs {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px dashed #e2e8f0;
  padding-top: 14px;
  font-size: 13px;
  color: #334155;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.casa-age-specs li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.casa-age-specs li strong {
  color: #0f172a;
}

/* Pros and Cons Side by Side */
.casa-pros-cons-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 32px 0;
}

.casa-pro-card,
.casa-con-card {
  border-radius: 16px;
  padding: 24px 28px;
  background: #ffffff;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.04);
}

.casa-pro-card {
  border: 1.5px solid #bbf7d0;
  background: linear-gradient(180deg, #f0fdf4 0%, #ffffff 40%);
}

.casa-con-card {
  border: 1.5px solid #fecaca;
  background: linear-gradient(180deg, #fef2f2 0%, #ffffff 40%);
}

.casa-pc-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.casa-pc-header h3 {
  font-family: var(--casa-head);
  font-size: 19px;
  font-weight: 700;
  margin: 0;
}

.casa-pro-card h3 {
  color: #15803d;
}

.casa-con-card h3 {
  color: #b91c1c;
}

.casa-pc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.casa-pc-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.55;
  color: #334155;
}

.casa-pc-item svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
}

@media (max-width: 768px) {
  .casa-quiz-grid,
  .casa-pros-cons-grid {
    grid-template-columns: 1fr;
  }
  .casa-quiz-box {
    padding: 24px 18px;
  }
  .casa-quiz-result {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
}

/* Expert Quote & Mid-Article CTA Banner */
.casa-expert-quote {
  background: #eff6ff;
  border-left: 4px solid var(--casa-ink);
  border-radius: var(--casa-radius);
  padding: 20px 24px;
  margin: 28px 0;
}

.casa-expert-quote p {
  margin: 0;
  font-size: 15px;
  color: #1e3a8a;
  line-height: 1.6;
  font-style: italic;
}

.casa-expert-quote .author {
  margin-top: 10px;
  font-size: 13px;
  font-weight: 700;
  color: var(--casa-ink);
}

.casa-cta-banner {
  background: linear-gradient(135deg, #0d3b66 0%, #174a7a 100%);
  border-radius: var(--casa-radius-lg);
  padding: clamp(24px, 4vw, 36px);
  color: #ffffff;
  margin: 40px 0;
  text-align: center;
  box-shadow: 0 10px 30px rgba(13, 59, 102, 0.15);
}

.casa-cta-banner .badge {
  display: inline-block;
  background: rgba(255, 158, 34, 0.2);
  color: #ff9e22;
  padding: 4px 14px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.casa-cta-banner h3 {
  font-family: var(--casa-head);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 800;
  margin: 0 0 12px;
  color: #ffffff;
}

.casa-cta-banner p {
  color: #cbd5e1;
  font-size: 15px;
  max-width: 680px;
  margin: 0 auto 24px;
  line-height: 1.6;
}

.casa-cta-banner .cta-buttons {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}