/* Working Process Section - Timeline Redesign with Connectors */
/* Keyframes cho các hiệu ứng animation */
@keyframes pulseGlow {
  0%, 100% { 
    box-shadow: 0 0 0 8px rgba(147, 197, 253, 0.22),
                0 0 20px rgba(59, 130, 246, 0.3);
  }
  50% { 
    box-shadow: 0 0 0 12px rgba(147, 197, 253, 0.35),
                0 0 30px rgba(59, 130, 246, 0.5);
  }
}

@keyframes cardSlideUp {
  0% {
    transform: translateY(0) scale(1);
    opacity: 0.8;
  }
  100% {
    transform: translateY(-8px) scale(1.02);
    opacity: 1;
  }
}

@keyframes fadeInScale {
  0% {
    opacity: 0;
    transform: scale(0.95);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% center;
  }
  100% {
    background-position: 200% center;
  }
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 80px 40px;
  margin-top: 100px;
  position: relative;
}

.process-item {
  background: #ffffff;
  border: 1px solid rgba(148, 163, 184, 0.5);
  padding: 50px 30px 40px;
  border-radius: var(--radius);
  position: relative;
  transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 1;
  opacity: 0.85;
  transform: scale(0.98);
}

.process-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(30, 58, 138, 0.05), rgba(59, 130, 246, 0.05));
  opacity: 0;
  transition: opacity 0.6s ease;
  pointer-events: none;
}

.process-item::after {
  content: none;
}

/* Cầu nối giữa các bước (chỉ desktop, dạng 3 cột) */
@media (min-width: 1025px) {
  .process-item::after {
    content: "";
    position: absolute;
    top: 30px;
    right: -40px;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
    opacity: 0.4;
    pointer-events: none;
    transition: all 0.5s ease;
  }

  /* Ngắt cầu nối sau bước 3 và bước 6 (1→2→3, 4→5→6) */
  .process-item:nth-child(3)::after,
  .process-item:nth-child(6)::after {
    content: none;
  }
}

/* Vô hiệu hóa highlight khi hover (chỉ dùng hiệu ứng tự động với is-active) */
.process-item:hover {
  border-color: inherit;
  transform: none;
  background: inherit;
  box-shadow: none;
}

.process-item:hover::after {
  opacity: inherit;
  right: -35px;
}

/* Trạng thái active: nổi bật nhưng không đổi màu liên tục */
.process-item.is-active {
  border-color: #1e3a8a;
  transform: translateY(-8px) scale(1.02);
  background: linear-gradient(145deg, #1e3a8a 0%, #3b82f6 100%);
  animation: cardSlideUp 0.4s ease forwards;
  box-shadow: 0 25px 50px rgba(30, 58, 138, 0.3),
              0 0 0 1px rgba(255, 255, 255, 0.1) inset;
  opacity: 1;
  z-index: 10;
}

.process-item.is-active::before {
  opacity: 1;
}

.process-item.is-active::after {
  opacity: 1;
  right: -45px;
  width: 50px;
  background: linear-gradient(90deg, #60a5fa, #3b82f6, transparent);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

.process-item.is-active .process-number-circle {
  background: #bfdbfe;
  color: #1e3a8a;
  transform: scale(1.15) rotate(5deg);
  box-shadow: 0 10px 20px rgba(0,0,0,0.15);
  border-color: #93c5fd;
}

.process-item.is-active .process-icon {
  background: #93c5fd;
  color: #1e3a8a;
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3),
              0 0 0 4px rgba(147, 197, 253, 0.2);
}

.process-item.is-active .process-icon i {
  transform: scaleX(-1);
}


.process-number-circle {
  position: absolute;
  top: -30px;
  left: 30px;
  width: 60px;
  height: 60px;
  background: #ffffff;
  border: 2px solid var(--accent);
  color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 20px;
  z-index: 5;
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.process-item:hover .process-number-circle {
  background: #ffffff;
  color: var(--accent);
  transform: none;
  box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.process-icon {
  width: 55px; 
  height: 55px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--accent);
  border-radius: 12px;
  display: flex; 
  align-items: center; 
  justify-content: center;
  font-size: 22px;
  margin-bottom: 25px;
  transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}

.process-icon i {
  transform: scaleX(1);
  transition: transform 0.35s ease;
}

.process-item:hover .process-icon {
  background: rgba(37, 99, 235, 0.08);
  color: var(--accent);
  transform: none;
}

.process-item.is-active:hover .process-icon {
  background: #93c5fd;
  color: #1e3a8a;
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3),
              0 0 0 4px rgba(147, 197, 253, 0.2);
}

.process-item h3 {
  font-size: 18px;
  color: #0f172a;
  margin-bottom: 15px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
  transition: color 0.4s ease;
}

.process-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  transition: color 0.4s ease;
}

/* Khi ô quy trình đang active, dùng chữ trắng cho nổi bật hơn */
.process-item.is-active h3,
.process-item.is-active p {
  color: #ffffff;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* Responsive */
@media (max-width: 1024px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 80px 30px; }
}

@media (max-width: 768px) {
  .process-grid { grid-template-columns: 1fr; }
  .process-item { padding: 45px 25px 35px; }
}

:root {
  /* Nền tổng thể sáng + card trắng */
  --bg: #f4f6fb;
  --bg-card: #ffffff;

  /* Màu chữ */
  --text: #0f172a;
  --text-muted: #64748b;

  /* Accent xanh đậm chủ đạo */
  --accent: #1d4ed8;
  --accent-soft: rgba(37, 99, 235, 0.08);

  /* Alias cho những chỗ còn dùng tên biến vàng cũ */
  --gold: var(--accent);
  --gold-hover: #2563eb;

  /* Viền & container */
  --line: rgba(148, 163, 184, 0.35);
  --container: 1200px;
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}
body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(11, 27, 58, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.22);
}
.nav {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo { font-size: 24px; font-weight: 800; color: var(--gold); letter-spacing: 2px; }
.nav-toggle {
  display: none;
}

.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links a {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(226, 232, 240, 0.92);
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); }

.nav-call-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), #2563eb);
  color: #ffffff;
  font-weight: 700;
  letter-spacing: 0.5px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.4);
}

.nav-call-btn i {
  font-size: 16px;
}

.nav-call-btn span {
  font-size: 13px;
}

.nav-call-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(0,0,0,0.55);
}

/* Dropdown */
.nav-item-dropdown { position: relative; }
.nav-link-with-icon { display: inline-flex; align-items: center; gap: 6px; }
.nav-sub-toggle {
  display: none;
  border: 0;
  background: transparent !important;
  box-shadow: none;
  appearance: none;
  -webkit-appearance: none;
}
.nav-sub-toggle i {
  background: transparent !important;
}
.nav-item-dropdown .dropdown-menu {
  position: absolute;
  top: 100%; left: 0;
  min-width: 200px;
  background: #ffffff;
  border-radius: 8px;
  padding: 8px 0;
  margin-top: 8px;
  box-shadow: 0 18px 35px rgba(0,0,0,0.65);
  opacity: 0; visibility: hidden;
  transform: translateY(8px);
  transition: all 0.2s ease;
  z-index: 50;
}
.nav-item-dropdown .dropdown-menu li a {
  display: block;
  padding: 10px 20px;
  font-size: 12px;
  color: var(--text-muted);
}
.nav-item-dropdown .dropdown-menu li a:hover {
  background: rgba(37, 99, 235, 0.06);
  color: var(--accent);
}
.nav-item-dropdown:hover .dropdown-menu {
  opacity: 1; visibility: visible;
  transform: translateY(0);
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(120deg, rgba(219, 234, 254, 0.96), rgb(191 219 254 / 30%)), url('../uploads/main/banner ss1.jpg');
  background-size: cover;
  background-position: center;
  position: relative;
}
.hero h1 {
  font-size: clamp(40px, 8vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 30px;
  text-transform: uppercase;
  color: #0f172a;
}
.hero-sub {
  color: var(--accent);
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 20px;
  display: block;
}
.hero-btns { display: flex; gap: 20px; }

/* Global Sections */
.section-padding { padding: 30px 0; }
.section-tag {
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  display: block;
  margin-bottom: 15px;
  text-align: center;
}
.section-title {
  font-size: 36px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #0f172a;
}

/* Tinh chỉnh riêng cho section video để không dư khoảng trống dưới */
.video-section2.section-padding {
  padding-top: 80px;
  padding-bottom: 50px;
}

/* Services Section (Redesign) */
.services { position: relative; overflow: hidden; }
.services::before {
  content: "";
  position: absolute;
  inset: -2px 0 auto 0;
  height: 220px;
  background: radial-gradient(600px 180px at 20% 20%, rgba(95,180,255,0.22), transparent 60%),
              radial-gradient(520px 160px at 80% 0%, rgba(148,163,184,0.16), transparent 55%);
  pointer-events: none;
}
.services-header { max-width: 820px; }
.services-title {
  font-size: 32px;
  font-weight: 800;
  margin: 0 0 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gold);
}
.services-subtitle { color: var(--text-muted); line-height: 1.7; margin: 0; }

.services-grid {
  display: flex;
  gap: 30px;
  align-items: stretch;
}

.services-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  flex: 1.2;
}

.service-card {
  display: flex;
  flex-direction: column;
  gap: 15px;
  padding: 30px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
  border: 1px solid rgba(255,255,255,0.08);
  transition: all 0.35s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(95,180,255,0.7);
  background: linear-gradient(180deg, rgba(8,47,73,0.95), rgba(15,23,42,0.9));
}

.service-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  flex: 0 0 44px;
  color: #020813;
  background: var(--accent);
  box-shadow: 0 10px 20px rgba(15,23,42,0.75);
  margin-bottom: 5px;
}

.service-card__icon i { font-size: 18px; }

.service-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.service-card__title {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #fff;
  line-height: 1.4;
}

.service-card__desc { margin: 0; font-size: 13px; line-height: 1.6; color: var(--text-muted); }

/* Service Card as link */
.service-card--link {
  display: flex;
  text-decoration: none;
  color: inherit;
}

.service-card__link {
  margin-top: 14px;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
}

.service-card--link:hover .service-card__link {
  color: #fff;
}

.services-media { 
  flex: 0.8;
  display: flex;
  flex-direction: column;
  height: auto;
}

.services-media__frame {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.10);
  background: #0b0b0b;
  box-shadow: 0 30px 80px rgba(0,0,0,0.55);
  flex: 1;
}
.services-media__frame img { width: 100%; height: 100%; object-fit: cover; display: block; }
.services-media__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.1), rgba(0,0,0,0.55));
}

.services-badges {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}
.services-badge {
  border-radius: 16px;
  padding: 12px 12px;
  background: rgba(15,23,42,0.95);
  border: 1px solid rgba(95,180,255,0.4);
  text-align: center;
}
.services-badge__num {
  font-weight: 800;
  color: var(--accent);
  font-size: 14px;
  letter-spacing: 0.5px;
}
.services-badge__text { font-size: 11px; color: rgba(255,255,255,0.75); text-transform: uppercase; letter-spacing: 1px; margin-top: 4px; }

.services-cta {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}
.services-cta .btn-gold,
.services-cta .btn-outline { flex: 1; text-align: center; }

@media (max-width: 1024px) {
  .services-grid { flex-direction: column; }
  .services-media { position: relative; top: auto; }
  .services-media__frame { min-height: 380px; }
}

@media (max-width: 640px) {
  .services-title { font-size: 26px; }
  .services-cards { grid-template-columns: 1fr; }
  .services-badges { grid-template-columns: 1fr; }
  .services-cta { flex-direction: column; }
}

/* Why Choose Us Section (Redesign) */
.why {
  position: relative;
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.why-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(800px 340px at 20% 10%, rgba(59,130,246,0.18), transparent 60%),
    radial-gradient(700px 300px at 85% 25%, rgba(129,140,248,0.18), transparent 55%);
  pointer-events: none;
}

.why .container { position: relative; z-index: 1; }

.why-header-row {
  max-width: 800px;
  margin: 0 auto 60px;
  text-align: center;
}

.why-title {
  font-size: 38px;
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0 0 18px;
  color: #0f172a;
}

.text-gold { color: var(--accent); }

.why-desc {
  color: var(--text-muted);
  line-height: 1.75;
}

.why-body-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: stretch;
}

.why-features-column {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.why-features-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.why-feature-item {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 16px;
  padding: 22px;
  border-radius: 18px;
  background: #ffffff;
  border: 1px solid var(--line);
  transition: all 0.35s ease;
}

.why-feature-item:hover {
  transform: translateY(-5px);
  border-color: rgba(59,130,246,0.7);
  background: rgba(37,99,235,0.06);
}

.why-feature-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 15px 35px rgba(15,23,42,0.5);
}

.why-feature-icon i { font-size: 20px; }

.why-feature-text h4 {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 15px;
}

.why-feature-text p {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.6;
}

.why-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  height: 100%;
}

.stat-card {
  position: relative;
  border-radius: 20px;
  background: #ffffff;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  transition: all 0.35s ease;
}

.stat-card:hover {
  transform: scale(1.03);
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.45);
  box-shadow: 0 20px 50px rgba(15,23,42,0.18);
}

.stat-card-inner {
  padding: 30px 20px;
}

.stat-number {
  font-size: 44px;
  font-weight: 900;
  color: #0f172a;
}

.stat-suffix {
  font-size: 28px;
  font-weight: 900;
  color: var(--accent);
}

.stat-label {
  margin-top: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 11px;
  color: var(--text-muted);
}

@media (max-width: 1024px) {
  .why-body-row { grid-template-columns: 1fr; }
  .why-title { font-size: 32px; }
}

@media (max-width: 640px) {
  .why-stats-grid { grid-template-columns: 1fr; }
  .why-feature-item { padding: 18px; }
}

/* Video Section 2 (Main Player + List) */
.video-section2 {
  background: radial-gradient(circle at top left, rgba(59,130,246,0.15), transparent 55%), #f9fafb;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.video-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 2fr);
  gap: 32px;
  margin-top: 40px;
  align-items: flex-start; /* Để player cao hơn, danh sách gọn hơn */
}

.video-layout__sidebar {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
  display: flex;
  flex-direction: column;
}

.video-sidebar__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 14px;
}

.video-sidebar__title {
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0;
}

.video-sidebar__count {
  font-size: 12px;
  color: var(--text-muted);
}

.video-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 320px; /* danh sách thấp hơn khung video */
  overflow-y: auto;
  padding-right: 6px;
}

.video-list::-webkit-scrollbar {
  width: 8px;
}

.video-list::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.12);
  border-radius: 999px;
}

.video-list__row { margin: 0; padding: 0; }

.video-list__item {
  width: 100%;
  border: 1px solid var(--line);
  background: #f9fafb;
  border-radius: 14px;
  padding: 10px;
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  cursor: pointer;
  transition: transform 0.35s ease, border-color 0.35s ease, background 0.35s ease;
  text-align: left;
  color: var(--text);
}

.video-list__item:hover {
  border-color: rgba(37,99,235,0.55);
  background: rgba(37,99,235,0.06);
  transform: translateY(-2px);
}

.video-list__item.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 18px 40px rgba(15,23,42,0.16);
}

.video-list__thumb {
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #000;
  display: block;
}

.video-list__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.03);
  transition: transform 0.6s ease;
}

.video-list__item:hover .video-list__thumb img,
.video-list__item.is-active .video-list__thumb img {
  transform: scale(1.08);
}

.video-list__meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.video-list__name {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.video-list__hint {
  font-size: 12px;
  color: var(--text-muted);
}

.video-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.video-pager__btn {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  color: #fff;
  border-radius: 999px;
  padding: 10px 14px;
  cursor: pointer;
  transition: 0.25s;
  font-size: 12px;
}

.video-pager__btn:hover {
  background: var(--gold);
  color: #000;
  border-color: var(--gold);
}

.video-pager__btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.video-pager__info {
  font-size: 12px;
  color: var(--text-muted);
}

.video-layout__player {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px;
  box-shadow: 0 40px 120px rgba(0,0,0,0.75);
  height: 100%;
}

.video-player__frame {
  aspect-ratio: 16 / 9;
  border-radius: 14px;
  overflow: hidden;
  background: #000;
}

.video-player__frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.video-player__meta {
  padding: 14px 6px 0;
}

.video-player__meta-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.video-player__label {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.video-player__title {
  font-size: 18px;
  line-height: 1.35;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0;
  color: #0f172a;
}

.video-player__fullscreen {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.1);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.25s;
  flex: 0 0 auto;
}

.video-player__fullscreen:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* Video Lightbox 2 */
.video-lightbox2 {
  position: fixed;
  inset: 0;
  z-index: 2100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.video-lightbox2.is-active { display: flex; }

.video-lightbox2__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(14px);
}

.video-lightbox2__dialog {
  position: relative;
  width: min(1180px, 100%);
  aspect-ratio: 16 / 9;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 50px 140px rgba(0,0,0,0.9);
  border: 1px solid rgba(255,255,255,0.08);
}

.video-lightbox2__frame {
  width: 100%;
  height: 100%;
  background: #000;
  padding: 4px;
  box-sizing: border-box;
  border-radius: 18px;
  border: 2px solid var(--accent);
}

.video-lightbox2__frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.video-lightbox2__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  background: rgba(0,0,0,0.65);
  border: 1px solid rgba(255,255,255,0.18);
  color: #fff;
  cursor: pointer;
  font-size: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  transition: 0.25s;
}

.video-lightbox2__close:hover {
  background: var(--gold);
  color: #000;
  border-color: var(--gold);
}

/* Search Section Styles */
.search-section {
    background: #000000;
}

.search-section-category {
    background: var(--bg);
}

.search-section-post {
    background: var(--bg);
}

.search-box-wrapper {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background: transparent;
    border: 1px solid var(--line);
    border-radius: 50px;
}

.search-input-group {
    display: flex;
    gap: 10px;
}

.search-input-group input {
    flex: 1;
    background: transparent;
    border: none;
    color: #fff;
    padding: 10px 20px;
    outline: none;
    font-size: 16px;
}

.search-input-group button {
    border-radius: 50px;
}

.search-section-category .search-input-group input,
.search-section-post .search-input-group input {
    color: var(--text);
}

/* Portfolio */
.portfolio-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.portfolio-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;

  /* Viền xanh nhẹ trên nền sáng */
  border: 1px solid rgba(37, 99, 235, 0.22);
  box-shadow: 0 18px 40px rgba(15,23,42,0.08);
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.portfolio-item > a {
  width: 100%;
  height: 100%;
  display: block;
  position: relative;
}

/* Ảnh full khung */
.portfolio-img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
  opacity: 0.92;
  transform: scale(1.02);
  transition: transform 0.6s ease, filter 0.6s ease, opacity 0.6s ease;
}

/* Lớp phủ để ảnh nổi và "đẹp mắt" hơn */
.portfolio-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 220px at 20% 15%, rgba(59,130,246,0.16), transparent 60%),
    linear-gradient(180deg, rgba(15,23,42,0.05) 0%, rgba(15,23,42,0.70) 92%);
  z-index: 1;
  pointer-events: none;
}

.portfolio-item:hover {
  transform: translateY(-6px);
  border-color: rgba(37, 99, 235, 0.45);
  box-shadow: 0 28px 80px rgba(15,23,42,0.18);
}

.portfolio-item:hover .portfolio-img {
  transform: scale(1.10);
  filter: saturate(1.08) contrast(1.05);
  opacity: 1;
}

.portfolio-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 26px 22px;
  z-index: 2; /* nằm trên overlay */
}

.portfolio-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 3;
  font-size: 10px;
  color: #fff;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(95, 180, 255, 0.85);
}

.portfolio-title {
  font-size: 16px;
  font-weight: 800;
  text-transform: uppercase;
  color: #ffffff;
  letter-spacing: 0.5px;
  line-height: 1.35;
  text-shadow: 0 10px 30px rgba(0,0,0,0.75);

  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}


/* Buttons */
.btn-gold {
  background: var(--accent);
  color: #ffffff;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 13px;
  cursor: pointer;
  border: 0;
  box-shadow: 0 18px 40px rgba(15,23,42,0.75);
}
.btn-outline {
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 13px;
  background: transparent;
}

/* Footer */
.footer {
  position: relative;
  background: radial-gradient(1200px 500px at 10% -10%, rgba(59, 130, 246, 0.28), transparent 60%),
              radial-gradient(900px 400px at 100% 0%, rgba(14, 165, 233, 0.22), transparent 60%),
              linear-gradient(135deg, #0b1b3a 0%, #0f234a 45%, #09152d 100%);
  padding: 90px 0 38px;
  border-top: 1px solid rgba(148, 163, 184, 0.2);
  color: #e2e8f0;
  overflow: hidden;
}

.footer::before {
  content: "";
  position: absolute;
  width: 340px;
  height: 340px;
  border-radius: 999px;
  top: -180px;
  right: -120px;
  background: rgba(14, 165, 233, 0.18);
  filter: blur(50px);
  pointer-events: none;
}

.footer-top {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(280px, 1.5fr) 1fr 1fr minmax(260px, 1.4fr);
  gap: 34px;
  margin-bottom: 42px;
}

.footer-brand h3 {
  margin: 12px 0 14px;
  color: #f8fafc;
  font-size: 28px;
  line-height: 1.25;
}

.footer-brand p {
  margin: 0;
  color: rgba(226, 232, 240, 0.9);
  font-size: 15px;
  line-height: 1.9;
  max-width: 460px;
}

.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: #bae6fd;
  border: 1px solid rgba(125, 211, 252, 0.35);
  background: rgba(14, 165, 233, 0.14);
}

.footer h4 {
  color: #f1f5f9;
  margin-bottom: 18px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li {
  margin-bottom: 12px;
  font-size: 14px;
  color: rgba(226, 232, 240, 0.86);
  line-height: 1.7;
}

.footer-links a {
  color: rgba(226, 232, 240, 0.92);
  transition: color 0.22s ease, transform 0.22s ease;
}

.footer-links a:hover {
  color: #7dd3fc;
  transform: translateX(2px);
}

.footer-socials {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-socials a {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(125, 211, 252, 0.34);
  background: rgba(15, 23, 42, 0.5);
  color: #e0f2fe;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}

.footer-socials a:hover {
  transform: translateY(-3px);
  border-color: #7dd3fc;
  background: rgba(14, 165, 233, 0.18);
  box-shadow: 0 12px 26px rgba(2, 8, 23, 0.38);
}

.footer-contact .footer-links li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.footer-contact .footer-links i {
  margin-top: 4px;
  width: 16px;
  color: #7dd3fc;
}

.footer-bottom {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(148, 163, 184, 0.28);
  padding-top: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  color: rgba(191, 219, 254, 0.9);
}

.footer-bottom p {
  margin: 0;
}

.footer-madeby {
  color: rgba(186, 230, 253, 0.95);
}

/* Floating Contact Widget */
.contact-floating {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 1500;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-floating__item {
  width: 46px;
  height: 46px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.35);
  color: #fff;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}

.contact-floating__item:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.45);
  filter: saturate(1.08) brightness(1.03);
}

.contact-floating__item i {
  font-size: 20px;
}

.contact-floating__icon-img {
  width: 22px;
  height: 22px;
  object-fit: contain;
  display: block;
}

.contact-floating__item--phone {
  background: linear-gradient(135deg, #22c55e, #16a34a);
  border-color: rgba(22, 163, 74, 0.45);
}

.contact-floating__item--zalo {
  background: linear-gradient(135deg, #0ea5e9, #0284c7);
  border-color: rgba(2, 132, 199, 0.45);
}

.contact-floating__item--messenger {
  background: linear-gradient(135deg, #8b5cf6, #2563eb);
  border-color: rgba(99, 102, 241, 0.45);
}

.contact-floating__item--facebook {
  background: linear-gradient(135deg, #1877f2, #1456b8);
  border-color: rgba(24, 119, 242, 0.45);
}

@media (max-width: 640px) {
  .contact-floating {
    right: 16px;
    bottom: 16px;
  }
}

.contact-floating-mobile {
  display: none;
}

@media (max-width: 768px) {
  .contact-floating--desktop {
    display: none;
  }

  .contact-floating-mobile {
    position: fixed;
    left: 10px;
    right: 10px;
    bottom: 10px;
    z-index: 1600;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    padding: 6px;
    border-radius: 18px;
    border: 1px solid rgba(148, 163, 184, 0.35);
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    box-shadow: 0 14px 36px rgba(15, 23, 42, 0.2);
  }

  .contact-floating-mobile__item {
    min-height: 54px;
    border-radius: 14px;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: #334155;
    font-size: 11px;
    font-weight: 600;
    transition: all 0.22s ease;
  }

  .contact-floating-mobile__item i {
    font-size: 16px;
  }

  .contact-floating-mobile__icon-img {
    width: 16px;
    height: 16px;
    object-fit: contain;
    display: block;
  }

  .contact-floating-mobile__item--phone {
    background: #e8d7ac;
    color: #b7861d;
  }

  .contact-floating-mobile__item:active {
    transform: scale(0.97);
  }

  body {
    padding-bottom: 88px;
  }
}

/* Intro Section */
.intro-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: stretch;
}

.intro-title {
  margin: 0 0 16px;
  font-size: 34px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #0f172a;
  line-height: 1.2;
}

.intro-desc {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.8;
}

.intro-cta {
  display: flex;
  gap: 12px;
  margin-top: 26px;
}

.intro-cta .btn-gold,
.intro-cta .btn-outline {
  flex: 0 0 auto;
}

.intro-highlights {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.intro-highlights__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.intro-highlight {
  border-radius: 18px;
  padding: 16px 16px;
  background: var(--bg-card);
  border: 1px solid var(--line);
}

.intro-highlight__num {
  font-weight: 900;
  color: #0f172a;
  font-size: 24px;
  letter-spacing: 0.5px;
}

.intro-highlight__text {
  margin-top: 6px;
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.intro-media {
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-card);
  box-shadow: 0 24px 60px rgba(15,23,42,0.12);
}

.intro-media img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
}

/* Liên hệ trang chủ */
.contact-form-grid {
  align-items: flex-start;
}

.consult-form-grid {
  align-items: flex-start;
}

/* Liên hệ trang Liên hệ */
.contact-page-grid {
  align-items: flex-start;
}

.contact-page-two-cols {
  align-items: flex-start;
}

/* Trang Về chúng tôi */
.about-hero-grid,
.about-process-grid,
.about-capacity-grid {
  align-items: flex-start;
}

.about-core-grid,
.about-capacity-cards,
.about-gallery-main,
.about-gallery-main-right,
.about-gallery-small {
  align-items: stretch;
}

/* Portfolio Tabs */
.portfolio-tabs {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin: 0 auto 22px;
  flex-wrap: wrap;
}

.portfolio-tab {
  border: 1px solid var(--line);
  background: #ffffff;
  color: #0f172a;
  padding: 10px 16px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: 12px;
  transition: 0.25s;
}

.portfolio-tab:hover {
  border-color: rgba(37,99,235,0.6);
  transform: translateY(-1px);
}

.portfolio-tab.is-active {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
  box-shadow: 0 18px 40px rgba(37,99,235,0.35);
}

/* Feedback */
.feedback-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 40px;
}

.feedback-card {
  border-radius: 18px;
  padding: 22px;
  background: #ffffff;
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(15,23,42,0.08);
}

.feedback-card__head {
  display: grid;
  grid-template-columns: 4fr 6fr;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 14px;
}

.feedback-avatar {
  width: 100%;
  border-radius: 14px;
  overflow: hidden;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feedback-avatar img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.feedback-avatar-initial {
  width: 100%;
  padding: 18px 0;
  text-align: center;
  font-weight: 900;
  font-size: 22px;
  color: #0f172a;
}

.feedback-main {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.feedback-name {
  font-weight: 800;
  letter-spacing: 0.5px;
}

.feedback-sub {
  margin-top: 2px;
  font-size: 12px;
  color: var(--text-muted);
}

.feedback-stars {
  color: var(--accent);
  display: inline-flex;
  gap: 2px;
  white-space: nowrap;
}

.feedback-text {
  color: var(--text);
  line-height: 1.75;
  font-size: 14px;
}

/* Feedback pager buttons (Lùi / Tiếp) */
.feedback .video-pager__btn {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.feedback .video-pager__btn:hover:not(:disabled) {
  background: var(--gold-hover);
  border-color: var(--gold-hover);
  color: #ffffff;
}

/* Scroll reveal effects */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.7s cubic-bezier(0.25, 0.8, 0.25, 1),
    transform 0.7s cubic-bezier(0.25, 0.8, 0.25, 1);
  will-change: opacity, transform;
}

.reveal--fade-in {
  transform: none;
}

.reveal--slide-left {
  transform: translateY(24px);
}

.reveal--slide-right {
  transform: translateY(24px);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Staggered reveal for some grids */
.process-grid .process-item.reveal:nth-child(1) {
  transition-delay: 0.0s;
}
.process-grid .process-item.reveal:nth-child(2) {
  transition-delay: 0.06s;
}
.process-grid .process-item.reveal:nth-child(3) {
  transition-delay: 0.12s;
}
.process-grid .process-item.reveal:nth-child(4) {
  transition-delay: 0.18s;
}
.process-grid .process-item.reveal:nth-child(5) {
  transition-delay: 0.24s;
}
.process-grid .process-item.reveal:nth-child(6) {
  transition-delay: 0.3s;
}

.why-features-list .why-feature-item.reveal:nth-child(1) {
  transition-delay: 0.0s;
}
.why-features-list .why-feature-item.reveal:nth-child(2) {
  transition-delay: 0.08s;
}
.why-features-list .why-feature-item.reveal:nth-child(3) {
  transition-delay: 0.16s;
}

.why-stats-grid .stat-card.reveal:nth-child(1) {
  transition-delay: 0.0s;
}
.why-stats-grid .stat-card.reveal:nth-child(2) {
  transition-delay: 0.08s;
}
.why-stats-grid .stat-card.reveal:nth-child(3) {
  transition-delay: 0.16s;
}
.why-stats-grid .stat-card.reveal:nth-child(4) {
  transition-delay: 0.24s;
}

.feedback-grid .feedback-card.reveal:nth-child(1) {
  transition-delay: 0.0s;
}
.feedback-grid .feedback-card.reveal:nth-child(2) {
  transition-delay: 0.08s;
}
.feedback-grid .feedback-card.reveal:nth-child(3) {
  transition-delay: 0.16s;
}

/* Responsive */
@media (max-width: 1024px) {
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .video-layout { grid-template-columns: 1fr; }
  .intro-grid { grid-template-columns: 1fr; }
  .feedback-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  /* Nền tảng mobile: container & section */
  .container {
    padding: 0 16px;
  }

  .section-padding {
    padding: 40px 0;
  }

  .section-title {
    font-size: 28px;
  }

  /* Header & nav cho mobile */
  .nav {
    height: 64px;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    margin-left: 12px;
    border-radius: 999px;
    border: 1px solid rgba(148,163,184,0.42);
    background: transparent;
    cursor: pointer;
    position: relative;
    appearance: none;
    -webkit-appearance: none;
    padding: 0;
    outline: none;
  }

  .nav-toggle-bar {
    position: relative;
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: #e5e7eb;
  }

  .nav-toggle-bar::before,
  .nav-toggle-bar::after {
    content: "";
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: #e5e7eb;
    transition: transform 0.22s ease, opacity 0.22s ease, top 0.22s ease, bottom 0.22s ease;
  }

  .nav-toggle-bar::before {
    top: -6px;
  }

  .nav-toggle-bar::after {
    bottom: -6px;
  }

  .nav-toggle.is-active .nav-toggle-bar {
    background: transparent;
  }

  .nav-toggle.is-active .nav-toggle-bar::before {
    top: 0;
    transform: rotate(45deg);
  }

  .nav-toggle.is-active .nav-toggle-bar::after {
    bottom: 0;
    transform: rotate(-45deg);
  }

  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    width: 100%;
    height: calc(100vh - 64px);
    height: calc(100dvh - 64px);
    max-height: calc(100vh - 64px);
    max-height: calc(100dvh - 64px);
    background: rgba(11, 27, 58, 0.985);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 16px 20px;
    overflow-y: auto;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    border-top: 1px solid rgba(148, 163, 184, 0.25);
    z-index: 1100;
  }

  body.nav-open .nav-links {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-links > li {
    border-bottom: 1px solid rgba(148, 163, 184, 0.22);
  }

  .nav-links > li > a,
  .nav-link-with-icon {
    display: block;
    padding: 14px 0;
    font-size: 14px;
    letter-spacing: 0.8px;
  }

  .nav-item-dropdown {
    position: relative;
  }

  .nav-sub-toggle {
    position: absolute;
    right: 0;
    top: 8px;
    width: 34px;
    height: 34px;
    border: 0;
    background: transparent;
    color: rgba(226, 232, 240, 0.92);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
  }

  .nav-sub-toggle i {
    transition: transform 0.2s ease;
  }

  .nav-item-dropdown.is-open .nav-sub-toggle i {
    transform: rotate(180deg);
  }

  .nav-item-dropdown .dropdown-menu {
    position: static;
    box-shadow: none;
    background: transparent;
    border-radius: 0;
    padding: 0 0 10px;
    margin-top: 0;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
  }

  .nav-item-dropdown.is-open .dropdown-menu {
    display: block;
  }

  .nav-item-dropdown .dropdown-menu li a {
    display: block;
    padding: 10px 0 10px 16px;
    font-size: 13px;
    color: rgba(226, 232, 240, 0.82);
    background: transparent;
  }

  .nav-item-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav-call-btn {
    display: none;
  }

  /* Hero & intro */
  .hero {
    height: auto;
    padding: 120px 0 60px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .intro-cta {
    flex-direction: column;
  }

  .intro-highlights__grid {
    grid-template-columns: 1fr;
  }

  /* Video layout: player phía trên, list phía dưới */
  .video-layout {
    display: flex;
    flex-direction: column-reverse;
    gap: 18px;
    align-items: stretch;
  }

  .video-layout__player {
    width: 100%;
    max-width: none;
    margin: 0;
    align-self: stretch;
    padding: 14px;
  }

  .video-layout__sidebar {
    width: 100%;
    max-width: none;
    padding: 14px;
  }

  .video-list__item {
    grid-template-columns: 108px minmax(0, 1fr);
  }

  /* Lưới chung */
  .feedback-grid {
    grid-template-columns: 1fr;
  }

  /* Form tìm kiếm */
  .search-box-wrapper {
    border-radius: 24px;
    padding: 16px;
  }

  .search-input-group {
    flex-direction: column;
  }

  .search-input-group button {
    width: 100%;
    text-align: center;
  }

  /* Footer */
  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-brand h3 {
    font-size: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  /* Liên hệ trang chủ */
  .contact-form-grid {
    display: block !important;
  }

  .consult-form-grid {
    display: block !important;
  }

  .consult-form-grid > div {
    margin-bottom: 16px;
  }

  .contact-page-grid {
    display: block !important;
  }

  .contact-page-two-cols {
    display: block !important;
  }

  /* Trang Về chúng tôi: xếp dọc trên mobile */
  .about-hero-grid,
  .about-process-grid,
  .about-capacity-grid {
    display: block !important;
  }

  .about-core-grid,
  .about-capacity-cards {
    display: block !important;
  }

  .about-gallery-main {
    display: block !important;
  }

  .about-gallery-main-right {
    display: block !important;
    margin-top: 16px;
  }

  .about-gallery-small {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .error-title {
    font-size: 72px;
  }
}

@media (max-width: 640px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
  }

  .error-title {
    font-size: 56px;
  }
}