body {
  font-family: "Roboto", sans-serif;
  scroll-behavior: smooth;
  margin: 0;
  padding: 0;
}

/* Loader */
#loader {
  transition: opacity 0.5s ease;
}

/* Navbar */
.navbar-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end; /* Đảm bảo các item nằm bên phải */
}

.navbar-nav .nav-item {
  display: block;
}

.navbar-nav .nav-link {
  font-size: 1.1rem; /* Tăng kích thước chữ */
  color: #374151; /* Màu xám đậm (text-gray-700) */
  padding: 0.5rem 1rem;
  transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
  color: #2563eb; /* Màu xanh (text-blue-600) khi hover */
}

/* Responsive cho mobile */
@media (max-width: 768px) {
  .navbar-nav {
    text-align: center; /* Căn giữa trên mobile */
    padding: 1rem 0; /* Thêm khoảng cách */
  }

  .navbar-nav .nav-link {
    font-size: 1rem; /* Kích thước chữ nhỏ hơn trên mobile */
    padding: 0.5rem;
    color: #374151; /* Đảm bảo màu chữ rõ ràng */
  }
}

/* Header */
header {
  position: relative;
}

header video {
  filter: brightness(0.8);
}

header.header-bg::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("./img/car-bg.jpg");
  background-size: cover;
  background-position: center;
  opacity: 0.3;
  z-index: 1;
  margin: 0.5em 0; /* Thêm margin trên/dưới */
}

header h1.typewriter {
  display: inline-block;
  border-right: 4px solid white;
  white-space: nowrap;
  overflow: visible; /* Đảm bảo không bị cắt text */
  animation: blink 0.7s infinite;
  line-height: 1.5; /* Tăng line-height để chứa ký tự có dấu */
  min-height: 1.5em; /* Đảm bảo chiều cao tối thiểu */
  padding: 0.2em 0; /* Thêm padding để tránh cắt */
}

@media (max-width: 768px) {
  header {
    height: 500px;
  }

  header h1 {
    font-size: 3rem;
  }

  header p {
    font-size: 1.25rem;
  }
}

@keyframes blink {
  50% {
    border-color: transparent;
  }
}

/* About Section */
.image-wrapper {
  overflow: hidden;
  border-radius: 0.5rem;
}

.image-wrapper img {
  transition: transform 0.5s ease;
}

.image-wrapper img:hover {
  transform: scale(1.1);
}

/* Carousel */
.carousel-ratio {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 Aspect Ratio */
  overflow: hidden;
}

.carousel-ratio img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease-in-out, opacity 0.6s ease-in-out;
}

.carousel-item {
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.carousel-item img:hover {
  transform: scale(1.05);
}

.carousel-caption {
  background: rgba(0, 0, 0, 0.5);
  border-radius: 0.5rem;
  padding: 10px;
}

/* Services - Flip Card */
.flip-card {
  perspective: 1000px;
  height: 300px; /* Chiều cao cố định */
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.6s;
  transform-style: preserve-3d;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  border-radius: 0.5rem;
}

.flip-card:hover .flip-card-inner {
  transform: rotateY(180deg); /* Chỉ lật khi hover */
}

.flip-card-front,
.flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 0.5rem;
}

.flip-card-front {
  background-color: white;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.flip-card-front img {
  transition: transform 0.3s ease;
}

.flip-card-front:hover img {
  transform: scale(1.05);
}

.flip-card-back {
  transform: rotateY(180deg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-color: #3b82f6; /* Màu nền cố định */
  color: white;
  border: 2px solid white;
}

.badge-popular {
  position: absolute;
  top: 10px;
  right: 10px;
  background: #ff4d4f;
  color: white;
  padding: 5px 10px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: bold;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Responsive */
@media (max-width: 768px) {
    .flip-card {
      height: auto;
    }
  
    .flip-card-inner {
      transform: none !important; /* Bỏ hiệu ứng lật trên mobile */
      border: none;
      padding: 0;
    }
  
    .flip-card-front,
    .flip-card-back {
      position: relative;
      transform: none;
      backface-visibility: visible;
      border-radius: 0;
      border-bottom: 1px solid #e5e7eb;
    }
  
    .flip-card-front {
      border-radius: 0.5rem 0.5rem 0 0;
    }
  
    .flip-card-back {
      border-radius: 0 0 0.5rem 0.5rem;
      border: none;
      margin-bottom: 1rem;
    }
  
    .flip-card:hover .flip-card-inner {
      transform: none !important;
    }
  
    .flip-card-front img {
      height: 200px;
    }
  }

@media (max-width: 576px) {
  .flip-card-front h4,
  .flip-card-back h4 {
    font-size: 1rem;
  }

  .flip-card-back p {
    font-size: 0.9rem;
  }
}

/* QR Section */
.qr-wrapper {
  transition: transform 0.3s ease;
  border: 2px solid transparent;
  border-radius: 0.5rem;
  background: linear-gradient(to right, #3b82f6, #1d4ed8);
  padding: 2px;
}

.qr-wrapper img {
  border: 4px solid white;
}

.qr-wrapper:hover {
  transform: scale(1.05);
}

/* Gallery - Masonry Layout */
.masonry-grid {
  column-count: 3;
  column-gap: 1rem;
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: 1rem;
  position: relative;
  overflow: hidden;
  border-radius: 0.5rem;
  width: 444px; /* Chiều rộng theo tỷ lệ 16:9 với chiều cao 250px */
  height: 250px; /* Chiều cao chuẩn theo ảnh thứ 2 */
}

.masonry-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.masonry-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1;
}

.masonry-item:hover::before {
  opacity: 1;
}

.masonry-item:hover img {
  transform: scale(1.1);
}

/* Responsive */
@media (max-width: 768px) {
  .masonry-grid {
    column-count: 2;
  }

  .masonry-item {
    width: 100%;
    height: 200px; /* Giảm chiều cao trên mobile */
  }
}

@media (max-width: 576px) {
  .masonry-grid {
    column-count: 1;
  }

  .masonry-item {
    height: 180px; /* Giảm thêm trên màn hình nhỏ */
  }

  .flip-card-front h4,
  .flip-card-back h4 {
    font-size: 1rem;
  }

  .flip-card-back p {
    font-size: 0.9rem;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .masonry-grid {
    column-count: 2;
  }

  .masonry-item {
    width: 100%;
    height: 200px; /* Giảm chiều cao trên mobile */
  }
}

@media (max-width: 576px) {
  .masonry-grid {
    column-count: 1;
  }

  .masonry-item {
    height: 180px; /* Giảm thêm trên màn hình nhỏ */
  }

  .flip-card-front h4,
  .flip-card-back h4 {
    font-size: 1rem;
  }

  .flip-card-back p {
    font-size: 0.9rem;
  }
}

/* Contact - Ripple Effect */
.ripple {
  position: relative;
  overflow: hidden;
}

.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transform: scale(0);
  animation: ripple 0.6s linear;
  pointer-events: none;
}

/* Footer */
.map-container {
  max-width: 600px;
}

/* Animations */
@keyframes blink {
  50% {
    border-color: transparent;
  }
}

@keyframes ripple {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Responsive */
@media (max-width: 768px) {
  header {
    height: 500px;
  }

  header h1 {
    font-size: 3rem;
  }

  header p {
    font-size: 1.25rem;
  }

  .carousel-ratio {
    padding-top: 75%; /* 4:3 Aspect Ratio for mobile */
  }

  .carousel-caption {
    display: block !important;
  }

  .masonry-grid {
    column-count: 2;
  }

  .map-container {
    max-width: 100%;
  }

  .map-container iframe {
    height: 250px;
  }
}

@media (max-width: 576px) {
  .masonry-grid {
    column-count: 1;
  }

  .flip-card-front h4,
  .flip-card-back h4 {
    font-size: 1rem;
  }

  .flip-card-back p {
    font-size: 0.9rem;
  }
}