/* ============================================================
   VÂN THIÊN LONG - Polish CSS v3.13.8
   Bổ sung CSS thiếu + re-design tổng thể chuyên nghiệp
   Đè lên main.css (load sau)
   ============================================================ */

/* ===== TEXTURE & PATTERN OVERLAYS ===== */
.section-intro {
  position: relative;
  background:
    radial-gradient(circle at 85% 50%, rgba(212,132,26,.06) 0%, transparent 50%),
    linear-gradient(180deg, #0a0a0a 0%, #0d0d0d 100%);
}
.section-intro::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.015) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}
.section-intro .container { position: relative; z-index: 1; }

.section-services {
  position: relative;
  background:
    radial-gradient(ellipse at top, rgba(212,132,26,.04) 0%, transparent 60%),
    #0a0a0a !important;
}

/* ===== INTRO STATS REDESIGN (lỗi blue selection trên image 1) ===== */
.intro-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 32px 0;
  padding: 24px;
  background: rgba(212,132,26,.04);
  border: 1px solid rgba(212,132,26,.18);
  border-radius: 12px;
  position: relative;
}
.intro-stats::before {
  content: '';
  position: absolute;
  top: -1px; left: 24px; right: 24px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: .5;
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
  padding: 8px 4px;
  border-right: 1px solid rgba(255,255,255,.08);
}
.stat-item:last-child { border-right: 0; }
.stat-num {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -.02em;
  font-family: 'Inter', sans-serif;
}
.stat-label {
  font-size: .78rem;
  color: #aaa;
  text-transform: uppercase;
  letter-spacing: .06em;
  font-weight: 500;
}
@media (max-width: 480px) {
  .intro-stats { padding: 18px 12px; gap: 8px; }
  .stat-num { font-size: 1.65rem; }
  .stat-label { font-size: .68rem; }
}

/* ===== SERVICES CARD POLISH ===== */
.service-card {
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,.02) 0%, rgba(255,255,255,.005) 100%) !important;
  border: 1px solid rgba(255,255,255,.06) !important;
  overflow: hidden;
  transition: transform .25s, border-color .25s, box-shadow .25s !important;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto auto;
  column-gap: 16px;
  row-gap: 8px;
  align-items: center;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .35s;
}
.service-card:hover {
  border-color: rgba(212,132,26,.4) !important;
  box-shadow: 0 12px 36px rgba(212,132,26,.08);
  transform: translateY(-6px) !important;
}
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  background: linear-gradient(135deg, rgba(212,132,26,.2) 0%, rgba(212,132,26,.05) 100%) !important;
  border: 1px solid rgba(212,132,26,.15);
  /* Grid placement: row 1, col 1 */
  grid-row: 1;
  grid-column: 1;
  margin-bottom: 0 !important;
  flex-shrink: 0;
}
.service-card h3 {
  /* Grid placement: row 1, col 2 - cùng dòng với icon */
  grid-row: 1;
  grid-column: 2;
  margin: 0;
  align-self: center;
  line-height: 1.3;
}
.service-card p {
  /* Row 2, full width */
  grid-row: 2;
  grid-column: 1 / -1;
  margin: 8px 0 0;
}
.service-card .service-link,
.service-card > a {
  /* Row 3, full width */
  grid-row: 3;
  grid-column: 1 / -1;
  margin-top: 4px;
}
@media (max-width: 480px) {
  .service-card {
    column-gap: 14px;
    padding: 22px 18px !important;
  }
  .service-icon {
    width: 48px !important;
    height: 48px !important;
  }
  .service-icon svg {
    width: 28px !important;
    height: 28px !important;
  }
  .service-card h3 { font-size: 1.05rem !important; }
}

/* ===== ABOUT PAGE (image 3, 4) ===== */
.section-about-hero {
  position: relative;
  background:
    radial-gradient(ellipse at top right, rgba(212,132,26,.08) 0%, transparent 55%),
    #0a0a0a;
  padding: 80px 0;
  border-bottom: 1px solid rgba(212,132,26,.15);
}
.about-hero-content { max-width: 880px; }
.about-lead {
  font-size: 1.15rem;
  color: #ccc;
  line-height: 1.7;
  margin-top: 16px;
}
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-text p { color: #bbb; line-height: 1.75; margin: 0 0 16px; }
.about-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.about-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 28px 22px;
  background: linear-gradient(135deg, rgba(212,132,26,.06) 0%, rgba(212,132,26,.02) 100%);
  border: 1px solid rgba(212,132,26,.2);
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  transition: transform .25s;
}
.about-stat:hover { transform: translateY(-4px); }
.about-stat::after {
  content: '';
  position: absolute;
  top: -30px; right: -30px;
  width: 100px; height: 100px;
  background: radial-gradient(circle, rgba(212,132,26,.15) 0%, transparent 70%);
  pointer-events: none;
}
.stat-big {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -.02em;
}
.about-stat > span:last-child {
  color: #ccc;
  font-size: .9rem;
  font-weight: 500;
}
.vision-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.vision-item {
  text-align: center;
  padding: 36px 28px;
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 14px;
  position: relative;
  transition: transform .25s, border-color .25s, background .25s;
}
.vision-item:hover {
  background: rgba(212,132,26,.04);
  border-color: rgba(212,132,26,.3);
  transform: translateY(-6px);
}
.vision-icon {
  width: 72px; height: 72px;
  margin: 0 auto 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(212,132,26,.18) 0%, rgba(212,132,26,.04) 100%);
  border: 2px solid rgba(212,132,26,.3);
  color: var(--accent);
}
.vision-item h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 0 12px;
  color: #fff;
}
.vision-item p {
  color: #bbb;
  font-size: .92rem;
  line-height: 1.65;
  margin: 0;
}

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .vision-grid { grid-template-columns: 1fr; gap: 18px; }
}
@media (max-width: 480px) {
  .about-stats-grid { grid-template-columns: 1fr; gap: 12px; }
  .about-stat { padding: 22px 18px; }
  .stat-big { font-size: 2rem; }
}

/* ===== PROJECT DETAIL HERO + GALLERY (image 5, 6) ===== */
.detail-hero {
  position: relative;
  height: 45vh;
  min-height: 320px;
  max-height: 480px;
  overflow: hidden;
}
@media (max-width: 768px) {
  .detail-hero { height: 280px; min-height: 240px; }
}
.detail-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.detail-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(0,0,0,.3) 0%,
    rgba(0,0,0,.5) 60%,
    rgba(0,0,0,.85) 100%);
}
.detail-hero-title-wrap {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  z-index: 2;
}
.hero-cat-tag {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 5px 14px;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  border-radius: 4px;
  margin-bottom: 12px;
}
.detail-hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: #fff;
  margin: 0;
  text-shadow: 0 2px 12px rgba(0,0,0,.5);
  line-height: 1.1;
}
@media (max-width: 768px) {
  .detail-hero-title { font-size: 1.6rem; }
  .detail-hero-title-wrap { bottom: 20px; }
}

.detail-body { padding: 56px 0; }
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}
.detail-excerpt {
  font-size: 1.1rem;
  color: #ddd;
  line-height: 1.75;
  padding: 18px 22px;
  background: rgba(212,132,26,.05);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  margin: 0 0 24px;
}
.detail-description { color: #bbb; line-height: 1.8; }
.detail-description p { margin: 0 0 16px; }
.detail-description h2 { font-size: 1.5rem; color: #fff; margin: 28px 0 14px; }
.detail-description h3 { font-size: 1.2rem; color: #fff; margin: 20px 0 10px; }

.detail-gallery { margin-top: 40px; }
.detail-gallery h2 { font-size: 1.5rem; margin: 0 0 18px; color: #fff; }
.gallery-item {
  display: block;
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  cursor: zoom-in;
  transition: transform .25s, box-shadow .25s;
}
.gallery-item:hover { transform: scale(1.02); box-shadow: 0 8px 24px rgba(0,0,0,.3); }
.gallery-item::after {
  content: '🔍';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%) scale(.5);
  background: rgba(0,0,0,.7);
  color: #fff;
  width: 48px; height: 48px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  opacity: 0;
  transition: opacity .25s, transform .25s;
}
.gallery-item:hover::after { opacity: 1; transform: translate(-50%,-50%) scale(1); }

.detail-info-card,
.detail-cta-card {
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 18px;
}
.detail-info-card h3,
.detail-cta-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  color: #fff;
}
.detail-info-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.detail-info-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(255,255,255,.06);
}
.detail-info-list li:last-child { border-bottom: 0; }
.detail-info-list .info-label {
  font-size: .72rem;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 600;
}
.detail-info-list li > span:last-child {
  font-size: .95rem;
  color: #fff;
  font-weight: 500;
}
.detail-cta-card {
  background: linear-gradient(135deg, rgba(212,132,26,.08) 0%, rgba(212,132,26,.02) 100%);
  border-color: rgba(212,132,26,.25);
}
.detail-cta-card p { color: #bbb; font-size: .9rem; margin: 0 0 14px; }

@media (max-width: 900px) {
  .detail-grid { grid-template-columns: 1fr; gap: 32px; }
  .detail-body { padding: 36px 0; }
}

/* ===== LIGHTBOX ===== */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.95);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 60px;
  animation: lbFadeIn .2s ease;
}
@keyframes lbFadeIn { from { opacity: 0 } to { opacity: 1 } }
.lightbox-img {
  max-width: 100%;
  max-height: 90vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 8px 40px rgba(0,0,0,.8);
}
.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: rgba(255,255,255,.1);
  color: #fff;
  border: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.8rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s, transform .15s;
}
.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover { background: rgba(255,255,255,.2); transform: scale(1.05); }
.lightbox-close {
  top: 20px; right: 20px;
  font-size: 1.6rem;
}
.lightbox-prev { left: 20px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 20px; top: 50%; transform: translateY(-50%); }
.lightbox-prev:hover { transform: translateY(-50%) scale(1.05); }
.lightbox-next:hover { transform: translateY(-50%) scale(1.05); }
@media (max-width: 600px) {
  .lightbox { padding: 60px 12px; }
  .lightbox-close { top: 12px; right: 12px; width: 40px; height: 40px; }
  .lightbox-prev, .lightbox-next { width: 40px; height: 40px; font-size: 1.4rem; }
  .lightbox-prev { left: 8px; }
  .lightbox-next { right: 8px; }
}

/* ===== BREADCRUMB BAR + INLINE SEARCH (trang Dự Án/Tin Tức/Tư Vấn) ===== */
.breadcrumb-bar-with-search {
  padding: 14px 0 !important;
}
.breadcrumb-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: nowrap;        /* không wrap xuống dòng - giữ trên 1 line */
}
.breadcrumb-bar-inner .breadcrumb {
  flex: 1 1 auto;
  min-width: 0;             /* cho phép shrink */
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.breadcrumb-bar-inner .breadcrumb li {
  flex-shrink: 0;
}
.search-form-inline {
  display: flex;
  align-items: stretch;
  flex: 0 1 280px;          /* prefer 280px, có thể shrink */
  max-width: 280px;
  min-width: 140px;         /* tối thiểu cho mobile nhỏ */
}
.search-form-inline .search-input {
  flex: 1;
  padding: 7px 12px;
  font-size: .85rem;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-right: none;
  border-radius: 6px 0 0 6px;
  color: #fff;
  min-width: 0;
  width: 100%;
}
.search-form-inline .search-input:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255,255,255,.08);
}
.search-form-inline .search-input::placeholder { color: rgba(255,255,255,.4); }
.search-form-inline .search-btn {
  padding: 7px 12px;
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  border-radius: 0 6px 6px 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s;
  flex-shrink: 0;
}
.search-form-inline .search-btn:hover { background: var(--accent-dark, #B36F12); }

/* Filter bar không còn search bên cạnh */
.filter-bar-cats-only {
  margin-bottom: 32px;
}
.filter-bar-cats-only .filter-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-start;
}

@media (max-width: 640px) {
  .breadcrumb-bar-with-search { padding: 12px 0 !important; }
  .breadcrumb-bar-inner { gap: 10px; }
  .breadcrumb-bar-inner .breadcrumb { font-size: .78rem; }
  /* Ẩn "Trang Chủ" hoặc các li ở giữa nếu cần - vẫn dùng nowrap + ellipsis */
  .search-form-inline {
    flex: 0 1 180px;
    max-width: 180px;
    min-width: 120px;
  }
  .search-form-inline .search-input {
    padding: 6px 10px;
    font-size: .8rem;
  }
  .search-form-inline .search-btn {
    padding: 6px 10px;
  }
  .search-form-inline .search-input::placeholder { font-size: .75rem; }
}
@media (max-width: 380px) {
  .search-form-inline {
    flex: 0 1 150px;
    max-width: 150px;
    min-width: 100px;
  }
}

/* ===== POST DETAIL BANNER CĂN GIỮA (yêu cầu user) ===== */
.post-detail-hero,
.post-detail-banner,
.post-detail-image,
.post-detail-thumb {
  width: 100%;
  margin: 0 0 32px;
  border-radius: 12px;
  overflow: hidden;
  background: #161616;
  position: relative;
}
.post-detail-hero img,
.post-detail-banner img,
.post-detail-image img,
.post-detail-thumb img,
.post-detail-hero-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
  object-position: center;
  margin: 0 auto;
}
@media (max-width: 768px) {
  .post-detail-hero img,
  .post-detail-banner img,
  .post-detail-image img,
  .post-detail-thumb img,
  .post-detail-hero-img { max-height: 280px; }
}

/* Ảnh trong rich-text căn giữa, có shadow nhẹ */
.rich-text img,
.detail-description img,
.post-detail-content img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 24px auto;
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0,0,0,.4);
}
.rich-text figure,
.detail-description figure {
  margin: 24px 0;
  text-align: center;
}
.rich-text figcaption,
.detail-description figcaption {
  margin-top: 8px;
  font-size: .85rem;
  color: var(--gray);
  font-style: italic;
}

/* ===== CONTACT PAGE BẢN ĐỒ FULL WIDTH ===== */
.contact-map {
  width: 100%;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--gray-border);
  background: #1a1a1a;
  margin-top: 0;
}
.contact-map iframe {
  display: block;
  width: 100% !important;
  height: 420px !important;
  min-height: 320px;
  border: 0;
}
.contact-map-section {
  margin-top: 40px;
  padding-top: 0;
}
.contact-map-section h2 {
  font-size: 1.35rem;
  margin: 0 0 18px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}
.contact-map-section h2::before {
  content: '';
  width: 4px;
  height: 22px;
  background: var(--accent);
  border-radius: 2px;
}
@media (max-width: 768px) {
  .contact-map iframe { height: 320px !important; }
}

/* ===== SECTION WHY ("Cam Kết Vượt Kỳ Vọng") REDESIGN ===== */
.section-why {
  position: relative;
  background:
    radial-gradient(ellipse at top, rgba(212,132,26,.05) 0%, transparent 60%),
    var(--dark2) !important;
  overflow: hidden;
}
.section-why::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.012) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.012) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.section-why .container { position: relative; z-index: 1; }

.why-grid {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr) !important;
  gap: 24px !important;
  margin-top: 16px;
}
.why-item {
  position: relative;
  padding: 32px 24px 28px !important;
  background: linear-gradient(180deg,
    rgba(212,132,26,.05) 0%,
    rgba(212,132,26,.01) 60%,
    transparent 100%);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 14px;
  transition: transform .28s ease, border-color .28s ease, box-shadow .28s ease;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.why-item::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 56px;
  height: 3px;
  background: var(--accent);
  border-radius: 0 0 4px 0;
  transition: width .35s ease;
}
.why-item:hover {
  transform: translateY(-6px);
  border-color: rgba(212,132,26,.35);
  box-shadow:
    0 16px 40px rgba(0,0,0,.4),
    0 0 0 1px rgba(212,132,26,.1) inset,
    0 -2px 20px rgba(212,132,26,.08) inset;
}
.why-item:hover::before { width: 100%; }

.why-icon {
  display: flex !important;
  align-items: center;
  gap: 14px;
  font-size: 2.5rem !important;
  font-weight: 800 !important;
  color: var(--accent) !important;
  margin-bottom: 18px !important;
  line-height: 1 !important;
  font-family: 'Inter', sans-serif;
  letter-spacing: -.02em;
}
.why-icon::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(212,132,26,.4), transparent);
}

.why-item h3 {
  font-size: 1.12rem !important;
  font-weight: 700 !important;
  color: #fff !important;
  margin: 0 0 10px !important;
  line-height: 1.35;
}
.why-item p {
  color: #aaa !important;
  font-size: .9rem !important;
  line-height: 1.65 !important;
  margin: 0 !important;
  flex: 1;
}

/* Tablet 2 cột */
@media (max-width: 1024px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 20px !important;
  }
}

/* Mobile 1 cột compact */
@media (max-width: 600px) {
  .why-grid {
    grid-template-columns: 1fr !important;
    gap: 14px !important;
  }
  .why-item {
    padding: 22px 20px 20px !important;
    /* layout grid: số bên trái, content bên phải - compact mobile */
    display: grid !important;
    grid-template-columns: auto 1fr;
    column-gap: 18px;
    row-gap: 6px;
    align-items: start;
  }
  .why-item::before {
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent) 0%, var(--accent) 30%, transparent 100%);
  }
  .why-icon {
    grid-row: 1 / span 2;
    grid-column: 1;
    font-size: 2rem !important;
    margin-bottom: 0 !important;
    align-self: start;
    padding-top: 2px;
  }
  .why-icon::after { display: none; }
  .why-item h3 {
    grid-row: 1;
    grid-column: 2;
    font-size: 1rem !important;
    margin: 0 !important;
    padding-top: 2px;
  }
  .why-item p {
    grid-row: 2;
    grid-column: 2;
    font-size: .85rem !important;
  }
}

/* ===== TOOLS HERO BACKGROUND (yêu cầu user) ===== */
/* THƯỚC LỖ BAN - measuring tape pattern */
.luban-hero {
  position: relative;
  background:
    radial-gradient(ellipse at center, rgba(212,132,26,.12) 0%, transparent 65%),
    linear-gradient(180deg, #0d0d0d 0%, #1a1411 100%);
  padding: 80px 0 64px;
  overflow: hidden;
  border-bottom: 1px solid rgba(212,132,26,.15);
}
.luban-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg,
      transparent 0 38px,
      rgba(212,132,26,.08) 38px 39px,
      transparent 39px 78px,
      rgba(212,132,26,.04) 78px 79px),
    repeating-linear-gradient(0deg,
      transparent 0 20px,
      rgba(255,255,255,.02) 20px 21px);
  opacity: .7;
  pointer-events: none;
}
.luban-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 120px;
  background: linear-gradient(180deg, transparent, rgba(10,10,10,.8));
  pointer-events: none;
}
.luban-hero .container { position: relative; z-index: 2; }
.luban-hero-inner { text-align: center; max-width: 720px; margin: 0 auto; }
.luban-hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  margin: 14px 0 12px;
  color: #fff;
  letter-spacing: -.02em;
}
.luban-subtitle { font-size: 1.1rem; color: #bbb; line-height: 1.6; }
.luban-badge {
  display: inline-block;
  padding: 6px 16px;
  background: linear-gradient(135deg, rgba(212,132,26,.2) 0%, rgba(212,132,26,.08) 100%);
  border: 1px solid rgba(212,132,26,.35);
  border-radius: 999px;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

/* TÍNH CHI PHÍ - blueprint pattern */
.cc-hero {
  position: relative;
  background:
    radial-gradient(ellipse at center, rgba(33,150,243,.06) 0%, transparent 60%),
    linear-gradient(180deg, #0a0e14 0%, #0d1018 100%);
  padding: 80px 0 64px;
  overflow: hidden;
  border-bottom: 1px solid rgba(212,132,26,.15);
}
.cc-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}
.cc-hero::after {
  content: '';
  position: absolute;
  top: 15%; left: 10%;
  width: 280px; height: 200px;
  background-image:
    linear-gradient(90deg, rgba(212,132,26,.3) 0 1px, transparent 1px),
    linear-gradient(0deg, rgba(212,132,26,.3) 0 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%;
  background-repeat: no-repeat;
  background-position: 0 0, 0 0;
  border: 1px solid rgba(212,132,26,.25);
  pointer-events: none;
  opacity: .6;
  transform: rotate(-3deg);
}
.cc-hero .container { position: relative; z-index: 2; }
.cc-hero-inner { text-align: center; max-width: 760px; margin: 0 auto; }
.cc-hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  margin: 14px 0 12px;
  color: #fff;
  letter-spacing: -.02em;
}
.cc-subtitle { font-size: 1.1rem; color: #bbb; line-height: 1.6; }
.cc-badge {
  display: inline-block;
  padding: 6px 16px;
  background: linear-gradient(135deg, rgba(212,132,26,.2) 0%, rgba(212,132,26,.08) 100%);
  border: 1px solid rgba(212,132,26,.35);
  border-radius: 999px;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

/* PHONG THỦY - bagua compass */
.fs-hero {
  position: relative;
  background:
    radial-gradient(circle at center, rgba(212,132,26,.1) 0%, transparent 50%),
    linear-gradient(180deg, #1a1411 0%, #0d0d0d 100%);
  padding: 80px 0 64px;
  overflow: hidden;
  border-bottom: 1px solid rgba(212,132,26,.15);
}
.fs-hero::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 480px; height: 480px;
  border: 1px solid rgba(212,132,26,.15);
  border-radius: 50%;
  pointer-events: none;
  background-image:
    conic-gradient(from 0deg,
      rgba(212,132,26,.08) 0 45deg,
      transparent 45deg 90deg,
      rgba(212,132,26,.05) 90deg 135deg,
      transparent 135deg 180deg,
      rgba(212,132,26,.08) 180deg 225deg,
      transparent 225deg 270deg,
      rgba(212,132,26,.05) 270deg 315deg,
      transparent 315deg 360deg);
  mask-image: radial-gradient(circle, transparent 30%, black 31%, black 70%, transparent 71%);
  -webkit-mask-image: radial-gradient(circle, transparent 30%, black 31%, black 70%, transparent 71%);
}
.fs-hero::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 300px; height: 300px;
  border: 1px dashed rgba(212,132,26,.3);
  border-radius: 50%;
  pointer-events: none;
}
.fs-hero .container { position: relative; z-index: 2; }
.fs-hero-inner { text-align: center; max-width: 720px; margin: 0 auto; }
.fs-hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  margin: 14px 0 12px;
  color: #fff;
  letter-spacing: -.02em;
}
.fs-subtitle { font-size: 1.1rem; color: #bbb; line-height: 1.6; }
.fs-badge {
  display: inline-block;
  padding: 6px 16px;
  background: linear-gradient(135deg, rgba(212,132,26,.2) 0%, rgba(212,132,26,.08) 100%);
  border: 1px solid rgba(212,132,26,.35);
  border-radius: 999px;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

/* PHONG THỦY XÂY NHÀ - construction blueprint */
.fb-hero {
  position: relative;
  background:
    radial-gradient(ellipse at top, rgba(212,132,26,.1) 0%, transparent 60%),
    linear-gradient(180deg, #0d0d0d 0%, #1a1411 100%);
  padding: 80px 0 64px;
  overflow: hidden;
  border-bottom: 1px solid rgba(212,132,26,.15);
}
.fb-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  mask-image: linear-gradient(180deg, transparent 0%, black 30%, black 70%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, black 30%, black 70%, transparent 100%);
}
/* SVG nhà mờ phía sau */
.fb-hero::after {
  content: '';
  position: absolute;
  top: 50%; right: 8%;
  transform: translateY(-50%);
  width: 240px; height: 200px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 160' fill='none' stroke='%23D4841A' stroke-width='1.5' stroke-linejoin='round'><path d='M30 80 L100 30 L170 80 L170 140 L30 140 Z'/><path d='M20 80 L100 25 L180 80' stroke-width='2'/><rect x='60' y='100' width='30' height='40'/><rect x='110' y='100' width='30' height='40'/><line x1='100' y1='25' x2='100' y2='15'/></svg>");
  background-repeat: no-repeat;
  background-size: contain;
  opacity: .15;
  pointer-events: none;
}
@media (max-width: 768px) { .fb-hero::after { display: none; } }
.fb-hero .container { position: relative; z-index: 2; }
.fb-hero-inner { text-align: center; max-width: 800px; margin: 0 auto; }
.fb-hero h1 {
  font-size: 2.4rem;
  font-weight: 800;
  margin: 14px 0 12px;
  color: #fff;
  letter-spacing: -.02em;
}
.fb-subtitle { font-size: 1.05rem; color: #bbb; line-height: 1.65; }
.fb-badge {
  display: inline-block;
  padding: 6px 16px;
  background: linear-gradient(135deg, rgba(212,132,26,.2) 0%, rgba(212,132,26,.08) 100%);
  border: 1px solid rgba(212,132,26,.35);
  border-radius: 999px;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

/* Common tool body */
.luban-tool, .cc-tool, .fs-tool, .fb-tool { padding: 56px 0; }
.luban-card, .cc-card, .fs-card, .fb-card {
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  padding: 32px;
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .luban-hero, .cc-hero, .fs-hero, .fb-hero { padding: 56px 0 40px; }
  .luban-hero h1, .cc-hero h1, .fs-hero h1 { font-size: 1.75rem; }
  .fb-hero h1 { font-size: 1.5rem; }
  .luban-subtitle, .cc-subtitle, .fs-subtitle, .fb-subtitle { font-size: .95rem; }
  .luban-card, .cc-card, .fs-card, .fb-card { padding: 22px 18px; }
}