* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: sans-serif;
  overflow-x: hidden;
  margin: 0;
  padding-top: 80px;
  /* Add padding to prevent content from being covered by fixed navbar */
}

/* --- Section Base --- */
section {
  position: static;
  width: 100%;
  overflow: visible;
}

/* --- Panel 1: Slideshow --- */
.panel1 {
  background-color: #1a1a1a;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  position: relative;
} 

.slideshow {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.panel1 .slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  z-index: 1;
}

.panel1 .slide.active {
  opacity: 1;
  z-index: 2;
}

.slide img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* --- Caption --- */
.caption {
  position: absolute;
  top: 50%;
  left: 10%;
  transform: translateY(-50%);
  color: white;
  text-align: left;
  z-index: 2;
  max-width: 400px;
}

.caption h2 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.caption p {
  font-size: 1.2rem;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.caption button {
  background-color: white;
  border: none;
  padding: 10px 20px;
  font-size: 1rem;
  cursor: pointer;
  text-transform: uppercase;
}

.caption button:hover {
  background-color: #e0e0e0;
}

/* --- Progress Bar --- */
.progress-bar {
  position: relative;
  bottom: 0;
  left: 0;
  height: 5px;
  width: 0;
  background-color: white;
  z-index: 3;
}

/* --- Navbar --- */
.navbar {
  width: 100%;
  height: 80px;
  background-color: black;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: bold;
  padding: 0 40px;
  color: white;
  /* Changed from black to white for visibility */
  position: fixed;
  /* Make navbar fixed */
  top: 0;
  /* Stick to top */
  left: 0;
  z-index: 1000;
  /* Ensure it stays above other content */
  transition: transform 0.6s ease-in-out;
  /* Smooth transition for hiding/showing */
}

/* Class to hide navbar */
.navbar.hidden {
  transform: translateY(-100%);
  /* Move navbar up to hide */
}

.logo a {
  color: white;
  font-size: 1.8rem;
  font-weight: bold;
  text-decoration: none;
}

.menu {
  display: flex;
  align-items: center;
  flex-grow: 1;
  justify-content: center;
}

.menu a {
  margin-left: 20px;
  color: white;
  text-decoration: none;
}

.more span {
  color: white;
  text-decoration: none;
}

.menu a:hover,
.more span:hover {
  color: orange;
}

/* --- Panel 2 (tool grid) --- */
.panel2 {
  background-color: white;
  z-index: 4;
  padding: 100px 0;
  text-align: center;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.tool-card {
  background-size: cover;
  background-position: center;
  height: 500px;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  text-align: center;
  padding-bottom: 20px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: background-size 0.3s ease;
  background-size: 100%;
  position: relative;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  z-index: 1;
  transition: transform 0.3s ease;
}

.tool-card:hover::before {
  transform: translateY(0px);
}

.tool-card:hover {
  background-size: 110%;
}

.tool-card i {
  font-size: 30px;
  margin-bottom: 10px;
  transition: transform 0.3s ease;
  position: relative;
  z-index: 2;
}

.tool-card span {
  font-size: 16px;
  font-weight: bold;
  transition: transform 0.3s ease;
  position: relative;
  z-index: 2;
}

.tool-card:hover i,
.tool-card:hover span {
  transform: translateY(-40px);
}

.gallery-title {
  font-size: 2.5em;
  margin: 40px 0;
  color: #00a860;
}

/* --- Dot Navigation --- */
.nav-dots {
  display: none;
}

.dot {
  display: none;
}

.button-panel {
  font-weight: bold;
  border-radius: 2px;
  color: black;
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.3s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==== Footer Styling ==== */
footer {
  background-color: #f8f9fa;
  color: #6c757d;
  padding-top: 40px;
  padding-bottom: 20px;
  font-size: 14px;
  line-height: 1.6;
  position: relative;
  z-index: 5;
}

footer a {
  color: #6c757d;
  text-decoration: none;
}

footer a:hover {
  color: #343a40;
  text-decoration: underline;
}

footer .container {
  max-width: 1140px;
  margin: auto;
  padding: 0 15px;
}

footer h6 {
  font-weight: bold;
  text-transform: uppercase;
  margin-bottom: 20px;
}

footer p,
footer li {
  margin-bottom: 10px;
}

footer .row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

footer .col-md-3,
footer .col-md-2,
footer .col-md-4 {
  flex: 1 1 200px;
}

footer .text-center {
  text-align: center;
}

footer .border-bottom {
  border-bottom: 1px solid #dee2e6;
  margin-bottom: 30px;
}

footer .p-4 {
  padding: 1.5rem !important;
}

.group:hover img {
  transform: scale(1.05);
}

.group:hover .bg-gray-600 {
  background-color: blue;
  /* hoặc chọn màu khác */
}

.half-image-text {
  width: 100%;
}

.image-container {
  position: relative;
  width: 100%;
  max-height: 600px;
  overflow: hidden;
}

.image-container img {
  width: 100%;
  height: auto;
  display: block;
}

.text-box {
  position: absolute;
  top: 72%;
  left: 0;
  width: 50%;
  padding: 40px;
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-50%);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.text-box h2 {
  font-size: 1.8rem;
  margin-bottom: 10px;
  color: #000;
}

.text-box p {
  font-size: 1rem;
  color: #333;
}

/* --- Related Resources Section --- */
.related-resources-section {
  padding: 80px 20px;
  background-color: white;
  overflow: hidden;
}

.related-resources-section h2 {
  text-align: center;
  color: #00a860;
  ;
}

.related-resources-title {
  font-size: 2rem;
  color: #2a4d34;
  margin-bottom: 40px;
  font-weight: 700;
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  max-width: 1200px;
  justify-content: center;
  margin: 0 auto;
}

.resource-card {
  background-color: #0b7c4b;
  width: 200;
  color: #fff;
  border-radius: 10px;
  padding-bottom: 60px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  height: 100%;
  /* Đảm bảo thẻ có chiều cao đồng đều */
  position: relative;
}

.resource-card:hover {
  transform: scale(1.1);
}

.resource-button {
  display: block;
  /* Thay inline-block để dễ căn giữa */
  background: linear-gradient(90deg, #a3d9a5, #87c68d);
  /* Gradient màu đẹp mắt */
  color: black;
  padding: 20px 25px;
  /* Tăng padding để nút lớn hơn */
  border-radius: 25px;
  /* Tăng bo góc */
  text-decoration: none;
  font-weight: bold;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  /* Thêm bóng đổ */
  transition: all 0.3s ease;
  /* Hiệu ứng mượt mà */
  position: absolute;
  /* Đặt nút tuyệt đối */
  bottom: 20px;
  /* Sát đáy với khoảng cách 15px */
  left: 54%;
  /* Căn giữa theo chiều ngang */
  transform: translateX(-50%);
  /* Điều chỉnh để căn chính xác */
  margin: -15px;
  /* Loại bỏ margin để tránh lệch */
}

.resource-button:hover {
  background: linear-gradient(90deg, #f3f7f3, #6bb76c);
  /* Thay đổi gradient khi hover */
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
  /* Tăng bóng đổ khi hover */
}

.resource-card img {
  width: 100%;
  height: 400px;
  /* Đặt chiều cao cố định cho hình ảnh */
  object-fit: cover;
  /* Giữ tỷ lệ hình ảnh */
}

.resource-card h3 {
  font-size: 1.2rem;
  padding: 15px;
  text-transform: uppercase;
  margin: 0;
}

.content-image-section {
  padding: 80px 20px;
  background-color: #f0f4f8;
  /* Tông màu nền giống Related Resources */
  overflow: hidden;
}

.content-image-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  gap: 40px;
  /* Khoảng cách giữa nội dung và hình ảnh */
}

.content-left {
  flex: 1;
  max-width: 50%;
}

.content-title {
  font-size: 2rem;
  color: #2a4d34;
  /* Màu chữ giống Related Resources */
  margin-bottom: 20px;
  font-weight: 700;
}

.content-text {
  font-size: 1.1rem;
  color: #333;
  line-height: 1.6;
  margin-bottom: 30px;
}

.image-right {
  flex: 1;
  max-width: 50%;
}

.image-right img {
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.content-button1,
.content-button2 {
  display: block;
  /* Thay inline-block để dễ căn giữa */
  background: linear-gradient(90deg, #a3d9a5, #87c68d);
  /* Gradient màu đẹp mắt */
  color: black;
  padding: 20px 25px;
  /* Tăng padding để nút lớn hơn */
  border-radius: 25px;
  /* Tăng bo góc */
  text-decoration: none;
  font-weight: bold;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  /* Thêm bóng đổ */
  transition: all 0.3s ease;
  /* Hiệu ứng mượt mà */
  position: absolute;
  /* Đặt nút tuyệt đối */
  transform: translateX(-50%);
  /* Điều chỉnh để căn chính xác */
}

.content-button1 {
  left: 28%;
}

.content-button2 {
  right: 20%;
}
.login-desktop {
  display: block; /* Hiện trên màn hình rộng */
  color: white;
  margin-left: 20px;
}
/* style.css */
.menu a.active {
  color: orange; /* Color for the active menu item */
}

/* Mobile styles */
@media (max-width: 767px) {
  
  .navbar {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-between;
    text-align: left;
  }

  .logo {
    flex: 1 1 auto;
  }

  .caption h2 {
    font-size: 1.5rem;
  }

  .caption p {
    font-size: 1rem;
  }

  .menu a {
    display: block;
    margin: 10px 0;
  }

  .more {
    display: none;
    /* ẩn login trên mobile để đưa vào menu */
  }

  .caption {
    left: 5%;
    max-width: 90%;
  }

  .caption button {
    font-size: 0.9rem;
    padding: 8px 16px;
  }

  .content-image-container {
    flex-direction: column;
    gap: 20px;
  }

  .content-left,
  .image-right {
    max-width: 100%;
  }

  .text-box {
    width: 90%;
    left: 5%;
    padding: 20px;
  }

  footer .row {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  footer .col-md-3,
  footer .col-md-2,
  footer .col-md-4 {
    flex: 1 1 100%;
    margin-bottom: 20px;
  }

  .resource-card {
    padding-bottom: 80px;
    /* Tăng padding để nút không bị che */
  }

  .resource-card h3 {
    font-size: 1rem;
  }

  .resource-button {
    padding: 12px 16px;
    font-size: 0.9rem;
    bottom: 10px;
  }

  .resource-card img {
    height: auto !important;
    max-height: 200px;
  }

  .content-title {
    font-size: 1.4rem;
  }

  .resources-grid {
    grid-template-columns: 1fr;
  }

  .content-text {
    font-size: 1rem;
  }

  .content-button1,
  .content-button2 {
    position: static;
    transform: none;
    display: inline-block;
    margin-top: 10px;
  }

  .grid {
    grid-template-columns: 1fr !important;
    gap: 20px;
    padding: 20px;
  }

  .gallery-title {
    font-size: 1.6rem;
  }

  .text-box {
    width: 90%;
    top: auto;
    bottom: 20px;
    transform: none;
    padding: 20px;
  }

  .text-box h2 {
    font-size: 1.3rem;
  }

  .text-box p {
    font-size: 0.95rem;
  }
  .panel1 .slideshow {
    height: 100vh;
  }

  .panel1 .slide {
    height: 100%;
  }
}
/* Mobile menu */
@media (max-width: 767px) {
  .hamburger {
    display: block;
    margin-left: auto;
  }

  .menu {
    display: none;
    flex-direction: column;
    width: 100%;
    background-color: black;
    position: absolute;
    top: 80px;
    left: 0;
    z-index: 999;
    padding: 10px 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .menu.active {
    display: flex;
    max-height: 1000px;
  }
  /* style.css */
.menu a.active {
  color: orange; /* Color for the active menu item */
}
}
.login-desktop {
  display: block; /* Hiện trên màn hình rộng */
  color: white;
  margin-left: 20px;
}

.menu-login {
  display: none; /* Ẩn trong menu mặc định */
  color: white;
}

/* Ẩn hamburger mặc định */
.hamburger {
  display: none;
  font-size: 1.8rem;
  color: white;
  cursor: pointer;
}

/* Màn hình dưới 992px (tablet, mobile) */
@media (max-width: 991px) {
  .login-desktop {
    display: none; /* Ẩn login riêng biệt */
  }

  .menu-login {
    display: block; /* Hiện login trong menu */
  }

  .hamburger {
    display: block; /* Hiện hamburger */
  }
}

.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-toggle {
    cursor: pointer;
    color: white;
    padding: 5px;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background-color: white;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    border-radius: 4px;
    z-index: 1000;
    min-width: 120px;
}

.dropdown-menu a {
    display: block;
    padding: 10px;
    color: #333;
    text-decoration: none;
}

.dropdown-menu a:hover {
    background-color: white;
}