:root {
  --green: #16a34a;
  --green-dark: #15803d;
  --green-deep: #064e3b;
  --green-soft: #dcfce7;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --white: #ffffff;
  --warning-bg: #fef3c7;
  --warning-border: #f59e0b;
  --shadow: 0 12px 30px rgba(2, 6, 23, 0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: #f8fafc;
  font-size: 14px;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

.wrap {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 40px 0;
}

.section-title {
  margin: 0 0 14px;
  font-size: 23px;
  line-height: 1.25;
  color: #0f172a;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section-subtitle {
  margin: 0 0 26px;
  color: #475569;
  font-size: 14px;
  line-height: 1.7;
}

.floating-menu {
  position: fixed;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
}

.floating-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.floating-menu li + li {
  margin-top: 10px; /* Thu nhỏ khoảng cách các mục để tinh tế hơn */
}

.floating-menu a {
  display: flex;
  align-items: center;
  gap: 8px; /* Thu nhỏ khoảng cách giữa icon và chữ */
  padding: 4px 0; /* Thu nhỏ padding */
  color: #334155; /* Màu chữ xám đen mặc định */
  font-size: 13px; /* Thu nhỏ cỡ chữ (16px -> 13px) */
  font-weight: 600; /* Đổi font từ bold sang semi-bold tinh tế hơn */
  transition: all 0.25s ease;
}

/* Biểu tượng vòng tròn đồng tâm (chấm trong, viền ngoài) */
.floating-menu a::before {
  content: "";
  width: 12px; /* Thu nhỏ kích thước dot (16px -> 12px) */
  height: 12px;
  border-radius: 50%;
  border: 2px solid #64748b; /* Viền ngoài màu xám */
  background-color: #64748b; /* Lõi trong màu xám */
  background-clip: content-box;
  padding: 2px; /* Tạo khoảng trống giữa lõi và viền */
  box-sizing: border-box;
  flex: 0 0 12px; /* Đồng bộ kích thước dot */
  transition: all 0.25s ease;
}

.floating-menu a:hover,
.floating-menu a.active {
  color: var(--green); /* Đổi màu chữ sang xanh */
}

.floating-menu a.active::before,
.floating-menu a:hover::before {
  border-color: var(--green); /* Đổi màu viền ngoài sang xanh */
  background-color: var(--green); /* Đổi màu lõi trong sang xanh */
}

/* Khi menu nằm trên nền tối (lp-hero xanh đậm), tự động đổi chữ + icon sang màu trắng */
.lp-hero ~ * .floating-menu a,
.lp-hero .floating-menu a {
  color: var(--white);
}

/* Dùng JavaScript class 'on-dark' để toggle màu menu theo section hiện tại */
.floating-menu.on-dark a {
  color: rgba(255, 255, 255, 0.85);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.floating-menu.on-dark a::before {
  border-color: rgba(255, 255, 255, 0.6);
  background-color: rgba(255, 255, 255, 0.6);
}

.floating-menu.on-dark a.active,
.floating-menu.on-dark a:hover {
  color: #86efac; /* Xanh lá sáng cực kỳ nổi bật trên nền tối */
}

.floating-menu.on-dark a.active::before,
.floating-menu.on-dark a:hover::before {
  border-color: #86efac;
  background-color: #86efac;
}

.menu-toggle {
  display: none;
  position: fixed;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1000;
  width: 42px;
  height: 42px;
  border: none;
  background: var(--green-dark);
  color: var(--white);
  font-size: 20px;
  border-radius: 0 10px 10px 0;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
  cursor: pointer;
}

.lp-hero {
  clear: both;
  display: block;
  width: 100%;
  /* Thêm hình nền lưới (tech grid) tinh tế đè lên gradient xanh */
  background-color: var(--green-deep);
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.04) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(135deg, var(--green-deep), var(--green));
  background-size: 30px 30px, 30px 30px, 100% 100%;
  color: var(--white);
  padding: 70px 0 48px; /* Trả lại padding gốc */
  position: relative;
  overflow: hidden;
}

/* Thêm clearfix để chống sập layout nếu Header của Theme dùng float */
.lp-hero::after {
  content: "";
  display: table;
  clear: both;
}

/* Animation cho hình ảnh lơ lửng */
@keyframes floatAnimation {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-12px);
  }
  100% {
    transform: translateY(0px);
  }
}

.floating-img {
  animation: floatAnimation 4s ease-in-out infinite;
  filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.15));
  border-radius: 16px; /* Bo góc mềm mại cho ảnh */
  width: 100%;
  display: block;
}

/* Animation cho nút CTA Pulse */
@keyframes pulseEffect {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.4);
  }
  70% {
    box-shadow: 0 0 0 16px rgba(255, 255, 255, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
  }
}

.lp-hero .btn-primary {
  animation: pulseEffect 2s infinite;
}

.hero-grid,
.two-col,
.cta-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.process-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
  position: relative;
}

.process-grid > div:last-child {
  position: sticky;
  top: 120px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.2);
  margin-bottom: 20px;
  font-size: 14px;
  font-weight: 600;
}

.lp-hero h1 {
  margin: 0 0 18px;
  font-size: 36px;
  line-height: 1.18;
  max-width: 760px;
}

.lp-hero p {
  margin: 0 0 24px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.9);
  max-width: 680px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 12px;
  font-weight: 700;
  transition: all 0.25s ease;
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 14px;
}

.btn-primary {
  background: var(--white);
  color: var(--green-dark);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: #f0fdf4;
  color: var(--green-dark);
}

.btn-green {
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: var(--white);
  box-shadow: 0 10px 24px rgba(22, 163, 74, 0.25);
  border: none;
}

.btn-green:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px rgba(22, 163, 74, 0.4);
  color: var(--white);
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.7);
  color: var(--white);
  background: transparent;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.stat-card {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 18px 16px;
  text-align: center;
  backdrop-filter: blur(6px);
}

.stat-card strong {
  display: block;
  font-size: 22px;
  line-height: 1.2;
  margin-bottom: 6px;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
  font-weight: 600;
}

.placeholder-box {
  width: 100%;
  background: #e2e8f0;
  border: 2px dashed #94a3b8;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #64748b;
  font-size: 14px;
  gap: 8px;
  text-align: center;
  padding: 18px;
}

.placeholder-box span.icon {
  font-size: 40px;
  line-height: 1;
}

.placeholder-hero {
  min-height: 400px;
}

.placeholder-why {
  min-height: 340px;
}

.placeholder-service {
  min-height: 300px;
}

.placeholder-process {
  min-height: 320px;
}

.placeholder-cta {
  min-height: 260px;
}

.card-surface {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid #ecf0f4;
}

.issue-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.service-grid-full {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
}

.issue-card,
.service-card,
.price-card,
.review-card,
.faq-item {
  background: var(--white);
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid #eef2f7;
}

/* Thêm hiệu ứng hover cho các card (Điểm 3) */
.issue-card,
.service-card,
.price-card,
.review-card {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease,
    border-color 0.4s ease;
}

.issue-card:hover,
.service-card:hover,
.price-card:hover,
.review-card:hover {
  transform: translateY(-8px) !important;
  box-shadow: 0 20px 40px rgba(2, 6, 23, 0.08);
  border-color: rgba(22, 163, 74, 0.25);
}

.issue-card {
  padding: 20px;
}

.issue-card h3,
.service-card h3,
.price-card h3,
.review-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  color: #0f172a;
  font-weight: 700;
}

.issue-card p,
.service-card p,
.price-card li,
.review-card p,
.faq-content,
.timeline-item p {
  margin: 0;
  color: #475569;
  font-size: 14px;
  line-height: 1.65;
}

.issue-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--green-soft), #bbf7d0);
  color: var(--green-dark);
  font-size: 22px;
  margin-bottom: 14px;
  transition: all 0.3s ease;
}

.issue-card:hover .issue-icon {
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: var(--white);
  transform: translateY(-3px) scale(1.08);
  box-shadow: 0 10px 20px rgba(22, 163, 74, 0.25);
}

/* Style icon FA trong hero-badge */
.hero-badge i,
.trust-row i {
  margin-right: 6px;
}

.service-stack {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.service-card {
  padding: 18px 20px;
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 16px;
  align-items: start;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  border-left: 4px solid var(--green);
}

/* Hiệu ứng Focus: Rê chuột vào vùng chứa sẽ làm mờ các thẻ con không được rê chuột */
.service-grid-full:hover .service-card:not(:hover) {
  opacity: 0.5;
  transform: scale(0.98);
  box-shadow: none;
  border-color: #eef2f7;
}

.service-grid-full .service-card:hover {
  opacity: 1;
  z-index: 2;
}

.service-number {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  box-shadow: 0 10px 22px rgba(22, 163, 74, 0.25);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.tag {
  padding: 4px 12px;
  border-radius: 999px;
  background: #f0fdf4;
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 700;
  border: 1px solid #bbf7d0;
  transition: all 0.2s ease;
  cursor: default;
}

.tag:hover {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
  transform: translateY(-2px);
}

.price-intro {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 36px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.review-slider-wrap {
  position: relative;
  margin: 0 -10px;
}

.review-grid {
  display: flex;
  align-items: stretch;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 10px 10px 30px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  cursor: grab;
}

.review-grid:active {
  cursor: grabbing;
}

.review-grid::-webkit-scrollbar {
  display: none;
}

.process-grid-full {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 20px;
}

.timeline-item {
  position: relative;
  padding: 24px 20px;
  background: var(--white);
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid #eef2f7;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.timeline-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  border-color: rgba(22, 163, 74, 0.3);
}

.timeline-step {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #f0fdf4;
  color: var(--green-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
  border: 2px solid #bbf7d0;
  position: relative;
  z-index: 2;
  transition: all 0.3s ease;
}

.timeline-item:hover .timeline-step {
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: var(--white);
  border-color: transparent;
  transform: scale(1.15) rotate(-10deg);
  box-shadow: 0 10px 20px rgba(22, 163, 74, 0.3);
}

.timeline-item::after {
  content: "\f061";
  font-family: "Font Awesome 5 Free", "Font Awesome 5 Pro", "FontAwesome";
  font-weight: 900;
  position: absolute;
  top: 50%;
  right: -18px;
  transform: translateY(-50%);
  color: #cbd5e1;
  font-size: 18px;
}

.timeline-item:last-child::after {
  display: none;
}

.review-grid .review-card {
  flex: 0 0 calc(33.333% - 16px);
  scroll-snap-align: start;
}

.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--white);
  color: var(--green-dark);
  border: 1px solid #eef2f7;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.3s ease;
}

.slider-btn:hover {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
}

.prev-btn {
  left: -14px;
}
.next-btn {
  right: -14px;
}

@media (max-width: 1100px) {
  .prev-btn {
    left: 0px;
  }
  .next-btn {
    right: 0px;
  }
}

@media (max-width: 900px) {
  .review-grid .review-card {
    flex: 0 0 calc(50% - 12px);
  }
}

@media (max-width: 600px) {
  .review-grid .review-card {
    flex: 0 0 85%;
  }
}

.price-card {
  padding: 28px 22px;
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.price-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: var(--white);
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.04em;
  box-shadow: 0 10px 20px rgba(21, 128, 61, 0.22);
}

.price-card.popular {
  border: 2px solid var(--green);
  background: var(--green-soft);
  transform: translateY(-6px);
}

.price {
  font-size: 26px;
  line-height: 1.1;
  color: var(--green-dark);
  font-weight: 800;
  margin: 8px 0 16px;
}

.price small {
  font-size: 14px;
  color: var(--muted);
  font-weight: 600;
}

.price-list {
  padding: 0;
  margin: 0 0 28px;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
}

.price-list li {
  position: relative;
  padding-left: 28px;
  color: #475569;
}

.price-list li::before {
  content: "\f00c";
  font-family: "Font Awesome 5 Pro", "Font Awesome 5 Free", "FontAwesome";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 2px;
  color: var(--green);
  font-size: 14px;
}

.price-note {
  text-align: center;
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
}

.reviews {
  background: linear-gradient(180deg, #f0fdf4 0%, #ffffff 100%);
}

/* Styling cho Slide Feedback bằng hình ảnh chat (Điểm 1, 2, 3 - thiết kế cao cấp) */
.feedback-card {
  flex: 0 0 calc(25% - 18px); /* 4 ảnh trên 1 dòng ở desktop */
  scroll-snap-align: start;
  background: var(--white);
  border-radius: 16px;
  border: 1px solid #eef2f7;
  box-shadow: var(--shadow);
  padding: 8px; /* Padding nhẹ để tạo viền trắng như khung tranh */
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease,
    border-color 0.4s ease;
  cursor: pointer;
  overflow: hidden;
  position: relative;
  box-sizing: border-box;
}

.feedback-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px rgba(22, 163, 74, 0.12);
  border-color: rgba(22, 163, 74, 0.3);
}

.feedback-img-box {
  width: 100%;
  height: auto;
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  background: #f8fafc;
  aspect-ratio: 9 / 19.5; /* Khớp với tỷ lệ ảnh màn hình điện thoại */
}

.feedback-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

.feedback-card:hover .feedback-img-box img {
  transform: scale(1.05); /* Zoom nhẹ ảnh khi di chuột vào */
}

/* Biểu tượng phóng to nhỏ ở góc */
.feedback-zoom-badge {
  position: absolute;
  bottom: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.6);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  opacity: 0;
  transform: translateY(6px);
  transition: all 0.3s ease;
  z-index: 2;
  font-size: 14px;
}

.feedback-card:hover .feedback-zoom-badge {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  .review-grid .feedback-card {
    flex: 0 0 calc(33.333% - 16px); /* 3 ảnh ở tablet rộng */
  }
}

@media (max-width: 768px) {
  .review-grid .feedback-card {
    flex: 0 0 calc(50% - 12px); /* 2 ảnh ở tablet đứng */
  }
}

@media (max-width: 480px) {
  .review-grid .feedback-card {
    flex: 0 0 82%; /* 1 ảnh lớn trên mobile, hở 1 góc ảnh sau */
  }
}

/* Lightbox Modal style (Điểm 1 - WOW Effect) */
.feedback-lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(12px);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.feedback-lightbox.open {
  opacity: 1;
  pointer-events: auto;
}

.feedback-lightbox .lightbox-content {
  max-width: 90%;
  max-height: 85vh;
  position: relative;
  transform: scale(0.9);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.feedback-lightbox.open .lightbox-content {
  transform: scale(1);
}

.feedback-lightbox img {
  max-width: 100%;
  max-height: 85vh;
  border-radius: 12px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  object-fit: contain;
  display: block;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--white);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
  z-index: 10;
}

.lightbox-close:hover {
  background: var(--white);
  color: #0f172a;
  transform: rotate(90deg);
}

.review-card {
  padding: 26px 22px;
  position: relative;
  overflow: hidden;
  background: var(--white);
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid #eef2f7;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.review-card::before {
  content: "\f10d";
  font-family: "Font Awesome 5 Free", "Font Awesome 5 Pro", "FontAwesome";
  font-weight: 900;
  position: absolute;
  top: -10px;
  right: 10px;
  font-size: 80px;
  color: #f0fdf4;
  z-index: 0;
  line-height: 1;
  opacity: 0.7;
}

.stars {
  color: #f59e0b;
  font-size: 20px;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.review-card blockquote {
  margin: 0 0 24px;
  font-style: italic;
  color: #475569;
  font-size: 16px;
  line-height: 1.7;
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
  position: relative;
  z-index: 1;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: auto;
}

.avatar-placeholder {
  width: 56px;
  height: 56px;
  min-width: 56px;
  border-radius: 50%;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
  font-size: 22px;
}

.faq-wrap {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  gap: 16px;
}

.faq-item {
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item.active {
  border-color: rgba(22, 163, 74, 0.4);
  box-shadow: 0 15px 30px rgba(22, 163, 74, 0.08);
}

.faq-question {
  width: 100%;
  border: none;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  padding: 20px 22px;
  font-size: 15px;
  font-weight: 700;
  color: #0f172a;
  cursor: pointer;
  transition: color 0.3s ease;
}

.faq-item.active .faq-question {
  color: var(--green-dark);
}

.faq-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #f0fdf4;
  color: var(--green-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all 0.3s ease;
  flex: 0 0 32px;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: var(--white);
  box-shadow: 0 4px 10px rgba(22, 163, 74, 0.3);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 22px;
  color: #475569;
  font-size: 16px;
  line-height: 1.6;
}

.faq-item.active .faq-content {
  padding: 0 22px 20px;
  max-height: 220px;
}

.cta-final {
  background: linear-gradient(135deg, var(--green-deep), var(--green-dark));
  border-radius: 24px;
  padding: 48px;
  color: var(--white);
  box-shadow: 0 18px 44px rgba(6, 78, 59, 0.25);
  position: relative;
  overflow: hidden;
}

.cta-final::after {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.08) 0%,
    rgba(255, 255, 255, 0) 70%
  );
  border-radius: 50%;
  z-index: 0;
}

.cta-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.highlight-text {
  color: #fbbf24;
}

.cta-final h2 {
  margin: 0 0 14px;
  font-size: 28px;
  line-height: 1.2;
}

.cta-final p {
  margin: 0 0 24px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
  max-width: 620px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn-white {
  background: var(--white);
  color: var(--green-dark);
}

.btn-white:hover {
  background: #f0fdf4;
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.btn-line {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--white);
  backdrop-filter: blur(4px);
}

.btn-line:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
}

.seo-details {
  margin-top: 24px;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  padding: 0;
  overflow: hidden;
}

.seo-details summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 800;
  color: #0f172a;
  background: #f8fafc;
}

.seo-details summary::-webkit-details-marker {
  display: none;
}

.seo-details .seo-content {
  padding: 0 20px 20px;
  color: var(--muted);
}

.spacer-top {
  padding-top: 26px;
}

/* Scroll Reveal Animations (Điểm 6) */
.reveal-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-up.active {
  opacity: 1;
  transform: translateY(0);
}

/* Tạo độ trễ khi các card xuất hiện cùng lúc (Stagger animations) */
.issue-grid .reveal-up:nth-child(2) {
  transition-delay: 0.1s;
}
.issue-grid .reveal-up:nth-child(3) {
  transition-delay: 0.2s;
}
.issue-grid .reveal-up:nth-child(4) {
  transition-delay: 0.3s;
}
.issue-grid .reveal-up:nth-child(5) {
  transition-delay: 0.4s;
}
.issue-grid .reveal-up:nth-child(6) {
  transition-delay: 0.5s;
}

.service-stack .reveal-up:nth-child(2) {
  transition-delay: 0.1s;
}
.service-stack .reveal-up:nth-child(3) {
  transition-delay: 0.2s;
}
.service-stack .reveal-up:nth-child(4) {
  transition-delay: 0.3s;
}
.service-stack .reveal-up:nth-child(5) {
  transition-delay: 0.4s;
}

.pricing-grid .reveal-up:nth-child(2) {
  transition-delay: 0.2s;
}
.pricing-grid .reveal-up:nth-child(3) {
  transition-delay: 0.4s;
}

.review-grid .reveal-up:nth-child(2) {
  transition-delay: 0.2s;
}
.review-grid .reveal-up:nth-child(3) {
  transition-delay: 0.4s;
}

/* ========================================
   PROOF SECTION – Nền tối cao cấp (Tech Dark Mode)
   ======================================== */
.proof-section {
  background: linear-gradient(135deg, #091e12 0%, #0c1c24 50%, #0f172a 100%);
  position: relative;
  overflow: hidden;
}

.proof-section::before {
  content: "";
  position: absolute;
  top: -60px;
  left: -60px;
  width: 350px;
  height: 350px;
  background: radial-gradient(
    circle,
    rgba(22, 163, 74, 0.15) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.proof-section::after {
  content: "";
  position: absolute;
  bottom: -80px;
  right: -40px;
  width: 300px;
  height: 300px;
  background: radial-gradient(
    circle,
    rgba(134, 239, 172, 0.1) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.proof-section .section-title {
  color: #ffffff;
}

.proof-section .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.proof-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #86efac;
  background: rgba(134, 239, 172, 0.12);
  border: 1px solid rgba(134, 239, 172, 0.3);
  padding: 6px 18px;
  border-radius: 99px;
  margin-bottom: 16px;
}

/* Proof slider – Owl Carousel skin aligned with current UI */
.owl-carousel-proof-wrap {
  position: relative;
  padding: 0 50px;
}

.proof-grid.owl-carousel {
  position: relative;
  display: block;
  width: 100%;
}

.proof-grid.owl-carousel .owl-stage {
  display: flex;
  align-items: stretch;
}

.proof-grid.owl-carousel .owl-item {
  display: flex;
  align-items: stretch;
}

.proof-grid.owl-carousel .owl-item .proof-item {
  width: 100%;
}

.proof-grid.owl-carousel .owl-stage-outer {
  overflow: hidden;
  border-radius: 12px;
  padding: 30px 0;
  margin: -30px 0;
  position: relative;
  z-index: 1;
}

/* Hide Owl Carousel's built-in nav – replaced by custom .proof-slider-btn */
.proof-grid.owl-carousel .owl-nav {
  display: none !important;
}

/* Custom prev/next buttons – direct children of .owl-carousel-proof-wrap */
.proof-slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease,
    box-shadow 0.3s ease, transform 0.3s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  font-size: 16px;
  padding: 0;
  line-height: 1;
}

.proof-slider-btn:hover {
  background: var(--green);
  border-color: var(--green);
  color: var(--white);
  box-shadow: 0 6px 20px rgba(22, 163, 74, 0.35);
  transform: translateY(-50%) scale(1.1);
}

.proof-slider-btn.proof-prev-btn {
  left: -6px;
}

.proof-slider-btn.proof-next-btn {
  right: -6px;
}

.proof-grid.owl-carousel .owl-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  position: relative;
  z-index: 3;
}

.proof-grid.owl-carousel button.owl-dot {
  width: 8px;
  height: 8px;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  transition: all 0.3s ease;
}

.proof-grid.owl-carousel button.owl-dot.active {
  width: 24px;
  border-radius: 4px;
  background: #86efac;
}

.proof-section .proof-img-wrap {
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.proof-section .proof-rank {
  color: #86efac;
}

.proof-section .proof-domain {
  color: #fbbf24;
}

.proof-section .proof-note-light {
  text-align: center;
  margin-top: 32px;
  font-size: 14px;
  font-style: italic;
  color: rgba(255, 255, 255, 0.6);
  padding: 0 10%;
  line-height: 1.7;
}

.proof-lightbox {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(2, 6, 23, 0.88);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  z-index: 99999;
}

.proof-lightbox.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.proof-lightbox-dialog {
  position: relative;
  max-width: min(1100px, 92vw);
  max-height: 88vh;
  transform: scale(0.96);
  transition: transform 0.25s ease;
}

.proof-lightbox.is-open .proof-lightbox-dialog {
  transform: scale(1);
}

.proof-lightbox-dialog img {
  display: block;
  max-width: 100%;
  max-height: 88vh;
  object-fit: contain;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.proof-lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  z-index: 2;
  transition: all 0.25s ease;
}

.proof-lightbox-close:hover {
  background: #fff;
  color: #0f172a;
  transform: rotate(90deg);
}

body.proof-lightbox-open {
  overflow: hidden;
}

.btn-results-cta {
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: #fff;
  font-size: 15px;
  padding: 14px 32px;
  backdrop-filter: blur(4px);
  transition: all 0.25s ease;
}

.btn-results-cta:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: #fff;
  color: #fff;
  transform: translateY(-2px);
}

/* ========================================
   KINH NGHIEM SECTION – Nền ấm áp hổ phách nhẹ (Caution warning style)
   ======================================= */
.kinh-nghiem-section {
  background: linear-gradient(180deg, #fdfaf2 0%, #fffbeb 100%);
}

.kinh-nghiem-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #b45309;
  background: #fef3c7;
  border: 1px solid #fcd34d;
  padding: 6px 18px;
  border-radius: 99px;
  margin-bottom: 16px;
}

/* ========================================
   PROOF GALLERY – Hình ảnh thực tế
   ======================================== */
.proof-gallery-wrap {
  position: relative;
  z-index: 1;
}

.proof-gallery-label {
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.proof-gallery-label i {
  color: #86efac;
}

.proof-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* === PROOF SLIDER === */

.proof-item {
  display: flex;
  flex-direction: column;
  gap: 12px;
  justify-content: flex-start;
}

.proof-img-wrap {
  position: relative;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  background: #fff;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.proof-img-wrap:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.5);
}

.proof-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
  border-radius: 6px;
  background: #fff;
}

@media (min-width: 768px) {
  .proof-img-wrap {
    aspect-ratio: 16 / 9.6;
  }
}

.proof-caption {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-align: center;
}

.proof-rank {
  font-size: 13px;
  font-weight: 700;
  color: #86efac;
  display: flex;
  align-items: center;
  gap: 6px;
}

.proof-domain {
  font-size: 12px;
  color: #ea580c;
  font-style: italic;
  font-weight: 600;
}

.proof-note {
  text-align: center;
  margin-top: 32px;
  font-size: 14px;
  font-style: italic;
  color: rgba(255, 255, 255, 0.6);
  padding: 0 10%;
  line-height: 1.7;
}

@media (max-width: 1100px) {
  .owl-carousel-proof-wrap {
    padding: 0 40px;
  }
  .proof-slider-btn.proof-prev-btn {
    left: -4px;
  }
  .proof-slider-btn.proof-next-btn {
    right: -4px;
  }
}

@media (max-width: 768px) {
  .owl-carousel-proof-wrap {
    padding: 0 36px;
  }
  .proof-slider-btn {
    width: 40px;
    height: 40px;
    font-size: 14px;
  }
  .proof-slider-btn.proof-prev-btn {
    left: -2px;
  }
  .proof-slider-btn.proof-next-btn {
    right: -2px;
  }
  .proof-grid.owl-carousel .owl-stage-outer {
    padding: 24px 0;
    margin: -24px 0;
  }

  .proof-gallery {
    grid-template-columns: 1fr;
  }
  .proof-bubble {
    font-size: 11px;
    max-width: 140px;
  }
}

/* ========================================
   RESULTS SECTION – Kết quả thực tế
   ======================================== */
.results-section {
  background: linear-gradient(
    135deg,
    var(--green-deep) 0%,
    #0d3f27 50%,
    #064e3b 100%
  );
  position: relative;
  overflow: hidden;
}

.results-section::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 400px;
  height: 400px;
  background: radial-gradient(
    circle,
    rgba(22, 163, 74, 0.15) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.results-section::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: -40px;
  width: 300px;
  height: 300px;
  background: radial-gradient(
    circle,
    rgba(134, 239, 172, 0.1) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.results-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #86efac;
  background: rgba(134, 239, 172, 0.12);
  border: 1px solid rgba(134, 239, 172, 0.3);
  padding: 6px 18px;
  border-radius: 99px;
  margin-bottom: 16px;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
  z-index: 1;
}

.result-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  backdrop-filter: blur(8px);
  transition: all 0.3s ease;
}

.result-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(134, 239, 172, 0.4);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.result-before-after {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 12px;
  padding: 10px 14px;
  width: 100%;
  justify-content: center;
}

.result-before,
.result-after {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.result-label-small {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  opacity: 0.6;
  color: #fff;
}

.result-num-before {
  font-size: 18px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.45);
  text-decoration: line-through;
  text-decoration-color: rgba(239, 68, 68, 0.7);
}

.result-num-after {
  font-size: 22px;
  font-weight: 900;
  color: #86efac;
  letter-spacing: -0.02em;
}

.result-arrow {
  color: rgba(134, 239, 172, 0.7);
  font-size: 18px;
}

.result-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(134, 239, 172, 0.12);
  color: #86efac;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  border: 1px solid rgba(134, 239, 172, 0.2);
}

.result-card h3 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin: 0;
}

.result-card p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 900px) {
  .results-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 540px) {
  .results-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   SEO EDUCATE BOX – Góc cảnh giác
   ======================================== */
.seo-educate-box {
  margin-top: 64px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 40px;
  position: relative;
  z-index: 2;
  backdrop-filter: blur(12px);
}

.seo-educate-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 40px;
}

.seo-edu-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(250, 204, 21, 0.15);
  color: #facc15;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 0 24px rgba(250, 204, 21, 0.3);
}

.seo-educate-header h3 {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}

.seo-educate-header p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
  margin: 0;
}

.seo-educate-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  position: relative;
}

.seo-edu-vs {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: #1e293b;
  border: 2px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-style: italic;
  font-size: 14px;
  z-index: 5;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.seo-edu-card {
  background: #fff;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
  position: relative;
}

.seo-edu-card.seo-edu-bad {
  border-top: 5px solid #ef4444; /* Red */
}

.seo-edu-card.seo-edu-good {
  border-top: 5px solid #10b981; /* Green */
}

.seo-edu-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.seo-edu-bad .seo-edu-badge {
  background: #fee2e2;
  color: #b91c1c;
}

.seo-edu-good .seo-edu-badge {
  background: #d1fae5;
  color: #047857;
}

/* Google Mockup Containers (Điểm 1, 2, 3 - Premium Design) */
.google-ad-mockup,
.google-organic-mockup {
  font-family: Arial, sans-serif;
  border-radius: 12px;
  padding: 18px;
  margin-bottom: 24px;
  text-align: left;
  box-sizing: border-box;
  transition: all 0.3s ease;
}

/* Sponsored/Ad Mockup (Light Mode) */
.google-ad-mockup {
  background-color: #f8fafc; /* Nền xám sáng nhẹ của Google Search */
  border: 1px solid #e2e8f0;
  color: #4d5156;
}

.google-ad-mockup:hover {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  border-color: rgba(239, 68, 68, 0.25);
}

.ad-sponsored-header {
  font-size: 13px;
  color: #70757a;
  font-weight: 500;
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: 10px;
  margin-bottom: 14px;
}

.ad-brand-row,
.organic-brand-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  position: relative;
}

.ad-brand-logo {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: #3b82f6; /* Màu xanh nước biển của Bizfly/Zalo */
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

.ad-brand-info,
.organic-brand-info {
  display: flex;
  flex-direction: column;
  line-height: 1.4;
  flex: 1;
}

.ad-brand-name {
  font-size: 12px;
  color: #202124;
  font-weight: bold;
  letter-spacing: 0.02em;
}

.ad-brand-url {
  font-size: 11px;
  color: #4d5156;
}

.ad-menu-dots,
.organic-menu-dots {
  color: #70757a;
  font-size: 12px;
  cursor: pointer;
  padding: 4px 8px;
}

.ad-title {
  font-size: 19px;
  color: #1a0dab; /* Màu xanh link Google ở Light Mode */
  text-decoration: none;
  display: block;
  margin: 8px 0;
  line-height: 1.3;
  font-weight: 400;
}

.ad-title:hover,
.organic-title:hover {
  text-decoration: underline;
}

.ad-desc {
  font-size: 13.5px;
  color: #4d5156;
  line-height: 1.5;
  margin-bottom: 14px;
}

.ad-desc strong {
  color: #202124;
}

.ad-sitelink {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid #e2e8f0;
  padding: 12px 0 0 0;
  margin-top: 12px;
  gap: 16px;
}

.organic-sitelink {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid #e2e8f0;
  padding: 12px 0 0 0;
  margin-top: 12px;
  gap: 16px;
}

.ad-sitelink-content,
.organic-sitelink-content {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.ad-sitelink-title {
  font-size: 16px;
  color: #1a0dab;
  text-decoration: none;
  font-weight: 400;
  margin-bottom: 2px;
}

.ad-sitelink-title:hover,
.organic-sitelink-title:hover {
  text-decoration: underline;
}

.ad-sitelink-desc {
  font-size: 13px;
  color: #4d5156;
  line-height: 1.4;
}

.ad-sitelink-arrow {
  color: #70757a;
  font-size: 12px;
}

.organic-sitelink-arrow {
  color: #70757a;
  font-size: 12px;
}

/* Organic Mockup (Light/Premium Theme-friendly Mode) */
.google-organic-mockup {
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
  color: #4d5156;
}

.google-organic-mockup:hover {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  border-color: rgba(22, 163, 74, 0.3);
}

.organic-brand-logo {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #e2e8f0;
  box-sizing: border-box;
}

.organic-brand-logo img {
  width: 16px;
  height: 16px;
  border-radius: 50%;
}

.organic-brand-name {
  font-size: 12px;
  color: #202124;
  font-weight: bold;
}

.organic-brand-url {
  font-size: 11px;
  color: #4d5156;
  display: flex;
  align-items: center;
}

.organic-menu-dots {
  color: #70757a;
}

.organic-title {
  font-size: 19px;
  color: #1a0dab; /* Màu xanh link Google ở Light Mode */
  text-decoration: none;
  display: block;
  margin: 8px 0;
  line-height: 1.3;
  font-weight: 400;
}

.organic-desc {
  font-size: 13.5px;
  color: #4d5156;
  line-height: 1.5;
  margin-bottom: 14px;
}

.organic-desc strong {
  color: #202124;
}

.organic-sitelink {
  border-top: 1px solid #e2e8f0;
}

.organic-sitelink-title {
  font-size: 16px;
  color: #1a0dab;
  text-decoration: none;
  font-weight: 400;
  margin-bottom: 2px;
}

.organic-sitelink-desc {
  font-size: 13px;
  color: #4d5156;
  line-height: 1.4;
}

.organic-sitelink-arrow {
  color: #70757a;
}

/* Features List */
.seo-edu-features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.seo-edu-features li {
  font-size: 13px;
  color: #334155;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.5;
}

.seo-edu-bad .seo-edu-features i {
  color: #ef4444;
  margin-top: 3px;
}

.seo-edu-good .seo-edu-features i {
  color: #10b981;
  margin-top: 3px;
}

@media (max-width: 768px) {
  .seo-educate-compare {
    grid-template-columns: 1fr;
  }
  .seo-edu-vs {
    display: none;
  }
  .seo-educate-box {
    padding: 24px;
  }
}

/* SEO Readmore Section Design matches exactly client screenshot */
.seo-readmore {
  margin-top: 56px;
  position: relative;
  margin-bottom: 60px;
}

.seo-divider {
  display: flex;
  align-items: center;
  text-align: center;
  justify-content: center;
  margin-bottom: 28px;
  color: var(--green);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.1em;
}

.seo-divider::before,
.seo-divider::after {
  content: "";
  flex: 1;
  border-bottom: 1px solid #fbbf24;
  max-width: 80px;
}

.seo-divider::before {
  margin-right: 16px;
}

.seo-divider::after {
  margin-left: 16px;
}

.seo-readmore-content {
  background: var(--white);
  border: 1px dashed var(--green);
  border-radius: 12px;
  padding: 36px 40px 48px;
  position: relative;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
}

/* .seo-readmore-content h3 {
  text-align: center;
  font-size: 26px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.seo-readmore-content p {
  color: #334155;
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.seo-readmore-content strong {
  color: #0f172a;
  font-weight: 700;
} */

.seo-readmore-content a {
  color: #2563eb;
  text-decoration: underline;
  font-weight: 600;
  transition: color 0.2s ease;
}

.seo-readmore-content a:hover {
  color: var(--green);
}

.seo-readmore-toggle {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
}

.seo-toggle-btn {
  border-radius: 99px !important;
  padding: 10px 28px !important;
  font-weight: 700;
  font-size: 13px !important;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 8px 20px rgba(22, 163, 74, 0.2);
  border: none !important;
  cursor: pointer;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: var(--white) !important;
  transition: all 0.3s ease;
}

.seo-toggle-btn:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 12px 24px rgba(22, 163, 74, 0.3);
}

.seo-readmore-extra {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease, margin 0.4s ease;
  padding: 0;
  margin-top: 0;
  border-top: 1px dashed transparent;
}

.seo-readmore-extra.open {
  max-height: 1500px;
  /* margin-top: 24px;
  padding-top: 24px;
  border-top: 1px dashed #cbd5e1; */
}

.seo-readmore-extra h4 {
  font-size: 16px;
  font-weight: 700;
  color: #0f172a;
  margin: 20px 0 10px;
}

.seo-readmore-extra h4:first-of-type {
  margin-top: 0;
}

/* SEO Editorial Section – 2-column modern layout */
.seo-editorial {
  margin-top: 60px;
  border-top: 1px solid #e5e7eb;
  padding-top: 48px;
}

.seo-editorial-label {
  text-align: center;
  margin-bottom: 36px;
}

.seo-editorial-label span {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--green);
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  padding: 6px 18px;
  border-radius: 99px;
}

.seo-editorial-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
}

/* Cột trái: 3 highlight mini cards */
.seo-editorial-left {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.seo-stat-card {
  background: var(--white);
  border: 1px solid #eef2f7;
  border-left: 3px solid var(--green);
  border-radius: 12px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
  transition: all 0.3s ease;
}

.seo-stat-card:hover {
  transform: translateX(4px);
  border-left-color: var(--green-dark);
  box-shadow: 0 8px 20px rgba(22, 163, 74, 0.1);
}

.seo-stat-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: #f0fdf4;
  color: var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  margin-bottom: 8px;
}

.seo-stat-card strong {
  font-size: 14px;
  font-weight: 700;
  color: #0f172a;
  display: block;
}

.seo-stat-card span {
  font-size: 13px;
  color: #64748b;
  line-height: 1.5;
}

/* Cột phải: nội dung SEO */
.seo-editorial-right h3 {
  font-size: 22px;
  font-weight: 800;
  color: #0f172a;
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}

.seo-editorial-right p {
  color: #475569;
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 14px;
}

.seo-editorial-right strong {
  color: #0f172a;
  font-weight: 700;
}

.seo-editorial-right a {
  color: var(--green);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s ease;
}

.seo-editorial-right a:hover {
  color: var(--green-dark);
}

.seo-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--green);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  padding: 0;
  margin-bottom: 24px;
  transition: all 0.2s ease;
}

.seo-link-btn:hover {
  color: var(--green-dark);
  gap: 10px;
}

.seo-link-btn i {
  transition: transform 0.3s ease;
}

.seo-link-btn.open i {
  transform: rotate(180deg);
}

.seo-editorial-right .seo-readmore-extra {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s ease;
  border-top: 1px solid transparent;
  padding-top: 0;
}

.seo-editorial-right .seo-readmore-extra.open {
  max-height: 1500px;
  border-top: 1px solid #e5e7eb;
  padding-top: 20px;
}

.seo-readmore-extra h4 {
  font-size: 15px;
  font-weight: 700;
  color: #0f172a;
  margin: 20px 0 8px;
}

.seo-readmore-extra h4:first-of-type {
  margin-top: 0;
}

/* .seo-readmore-extra p {
  font-size: 14px;
  color: #475569;
  line-height: 1.8;
  margin-bottom: 4px;
} */

@media (max-width: 768px) {
  .seo-editorial-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .seo-editorial-left {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .seo-stat-card {
    flex: 1 1 calc(50% - 8px);
  }
}

/* Stepper – 5 bước quy trình mới */
.stepper-wrap {
  position: relative;
  padding-top: 36px;
}

.stepper-track {
  position: absolute;
  top: 60px; /* giữa các vòng tròn */
  left: calc(10% + 24px);
  right: calc(10% + 24px);
  height: 2px;
  background: linear-gradient(90deg, var(--green), #86efac, var(--green));
  z-index: 0;
}

.stepper-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  position: relative;
  z-index: 1;
  align-items: stretch;
}

.stepper-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
  height: 100%;
}

.stepper-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 0 0 5px #dcfce7, 0 8px 20px rgba(22, 163, 74, 0.25);
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.stepper-item:hover .stepper-circle {
  transform: scale(1.15);
  box-shadow: 0 0 0 8px #dcfce7, 0 12px 28px rgba(22, 163, 74, 0.35);
}

.stepper-body {
  background: var(--white);
  border: 1px solid #eef2f7;
  border-radius: 14px;
  padding: 18px 14px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  width: 100%;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stepper-item:hover .stepper-body {
  transform: translateY(-5px);
  box-shadow: 0 12px 32px rgba(22, 163, 74, 0.1);
  border-color: #bbf7d0;
}

.stepper-body h3 {
  font-size: 14px;
  font-weight: 700;
  color: #0f172a;
  margin: 0 0 6px;
  line-height: 1.4;
}

.stepper-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: var(--green);
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 99px;
  padding: 2px 10px;
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}

.stepper-body p {
  font-size: 12px;
  color: #64748b;
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 768px) {
  .stepper-track {
    display: none;
  }
  .stepper-steps {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .stepper-item {
    flex-direction: row;
    text-align: left;
    align-items: flex-start;
  }
  .stepper-body {
    flex: 1;
  }
}

@media (max-width: 1200px) {
  .floating-menu {
    width: 160px;
  }

  .hero h1 {
    font-size: 42px;
  }
}

@media (max-width: 900px) {
  .floating-menu {
    left: -190px;
    top: 50%;
    transition: left 0.3s ease;
  }

  .floating-menu.open {
    left: 0;
    background: rgba(255, 255, 255, 0.95);
    padding: 20px 30px 20px 20px;
    border-radius: 0 16px 16px 0;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .issue-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .section {
    padding: 52px 0;
  }

  .hero {
    padding: 52px 0 42px;
  }

  .hero-grid,
  .two-col,
  .process-grid,
  .cta-grid,
  .issue-layout,
  .service-layout,
  .pricing-grid,
  .review-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 34px;
  }

  .section-title,
  .cta-final h2 {
    font-size: 21px;
  }

  .stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-grid-full,
  .process-grid-full {
    grid-template-columns: 1fr;
  }

  .timeline-item::after {
    content: "\f063"; /* Mũi tên chỉ xuống trên mobile */
    top: auto;
    bottom: -20px;
    right: 50%;
    transform: translateX(50%);
  }

  .service-number,
  .timeline-step {
    margin-bottom: 4px;
  }

  .cta-final {
    padding: 28px 20px;
  }

  .placeholder-hero {
    min-height: 320px;
  }

  .placeholder-why,
  .placeholder-process,
  .placeholder-service,
  .placeholder-cta {
    min-height: 240px;
  }
}

@media (max-width: 480px) {
  .wrap {
    padding: 0 15px;
  }

  .hero h1 {
    font-size: 29px;
  }

  .hero p,
  .section-subtitle,
  .cta-final p {
    font-size: 16px;
  }

  .stats {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .btn {
    width: 100%;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .trust-row {
    gap: 10px;
  }
}

/* ========================================
   SECTION BACKGROUNDS & LAYOUT OPTIMIZATIONS
   ======================================== */
.why-section {
  background: #f8fafc !important;
}

.services-section {
  background: linear-gradient(135deg, #f0fdf4 0%, #e2f7ea 100%) !important;
}

.pricing-section {
  background: #ffffff !important;
}

/* ----------------------------------------
   DARK THEME PROCESS SECTION (Quy trình 5 bước)
   ---------------------------------------- */
.process-section {
  background: linear-gradient(
    135deg,
    #091e12 0%,
    #0c1c24 50%,
    #0f172a 100%
  ) !important;
  position: relative;
  overflow: hidden;
}

.process-section::before {
  content: "";
  position: absolute;
  top: -60px;
  left: -60px;
  width: 350px;
  height: 350px;
  background: radial-gradient(
    circle,
    rgba(22, 163, 74, 0.12) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.process-section::after {
  content: "";
  position: absolute;
  bottom: -80px;
  right: -40px;
  width: 300px;
  height: 300px;
  background: radial-gradient(
    circle,
    rgba(134, 239, 172, 0.08) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.process-section .section-title {
  color: #ffffff;
}

.process-section .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.process-section .stepper-body {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(8px);
  transition: all 0.3s ease;
}

.process-section .stepper-item:hover .stepper-body {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(134, 239, 172, 0.3);
  box-shadow: 0 12px 40px rgba(22, 163, 74, 0.18);
  transform: translateY(-5px);
}

.process-section .stepper-body h3 {
  color: #ffffff;
}

.process-section .stepper-body p {
  color: rgba(255, 255, 255, 0.65);
}

.process-section .stepper-tag {
  background: rgba(134, 239, 172, 0.12);
  border: 1px solid rgba(134, 239, 172, 0.3);
  color: #86efac;
}

.process-section .stepper-circle {
  box-shadow: 0 0 0 5px rgba(22, 163, 74, 0.2), 0 8px 20px rgba(0, 0, 0, 0.3);
}

.process-section .stepper-item:hover .stepper-circle {
  box-shadow: 0 0 0 8px rgba(22, 163, 74, 0.3),
    0 12px 28px rgba(22, 163, 74, 0.4);
}

/* ----------------------------------------
   ALT BACKGROUNDS FOR REVIEWS, FAQ & CONTACT
   ---------------------------------------- */
.faq-section {
  background: #f8fafc !important; /* Xanh xám nhạt dịu tách biệt với cảm nhận khách hàng trắng tinh */
}

.contact-section {
  background: #ffffff !important; /* Trắng để làm nổi bật hộp CTA đăng ký */
}


.feedback-zoom-link {
  display: block;
  width: 100%;
  height: 100%;
}

/* Owl Carousel overrides for reviews - keeping current design */
.review-grid.owl-carousel {
  display: block;
  overflow: visible;
  cursor: default;
  gap: 0;
}

.review-grid.owl-carousel .owl-stage {
  display: flex;
  align-items: stretch;
}

.review-grid.owl-carousel .owl-item {
  display: flex;
  align-items: stretch;
}

.review-grid.owl-carousel .owl-item .feedback-card {
  width: 100%;
  flex: none;
  margin: 0;
}

.review-grid.owl-carousel .owl-stage-outer {
  overflow: hidden;
  padding: 15px 0;
  margin: -15px 0;
  position: relative;
  z-index: 1;
}