html {
  scroll-behavior: smooth; /* Mượt mà khi cuộn tới section */
}



/* nav bar */

.navbar {
  background-color: var(--white);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  padding: 10px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar ul {
  list-style: none;
  display: flex;
  justify-content: center;
  margin: 0;
  padding: 0;
}

.navbar li {
  margin: 0 20px;
}

.navbar a {
  text-decoration: none;
  color: var(--green);
  font-weight: bold;
  font-size: 1em;
  padding: 8px 12px;
  transition: background 0.3s, color 0.3s;
}

.navbar a:hover {
  background-color: var(--green);
  color: var(--white);
  border-radius: 6px;
}



:root {
  --green: #6B8E23;        /* xanh lá dứa */
  --bamboo: #f8f1e4;       /* nền vàng tre nhạt */
  --text-dark: #333;
  --white: #ffffff;
}

body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  font-family: 'Segoe UI', sans-serif;
  background-color: var(--bamboo);
  color: var(--text-dark);
  font-family: 'Quicksand', sans-serif;
}

header {
  background-color: var(--green);
  color: var(--white);
  padding: 30px 20px;
  text-align: center;
}

header h1 {
  margin: 0;
  font-size: 2.5em;
}

header p {
  margin-top: 10px;
  font-size: 1.2em;
  font-style: italic;
}



.intro-image-wrapper {
  position: relative;
  width: 100vw;
  height: 600px;
  overflow: hidden;
}

.intro-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(50%); /* làm mờ ảnh */
}

.intro-overlay {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 20px;
  text-align: center;
}

.intro-heading {
  font-size: 3em;
  margin-bottom: 20px;
  color: #fff;
}

.intro-text {
  font-size: 1.2em;
  max-width: 800px;
  line-height: 1.6;
  color: #f3f3f3;
}



/* thong keke */
.stats-section {
  display: flex;
  justify-content: center;
  gap: 60px;
  padding: 40px 0;
  background: #fff;
}

.stat-box {
  text-align: center;
  background-color: #f4f4f4;
  border-radius: 12px;
  padding: 20px 40px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.stat-box .icon {
  font-size: 2.5em;
  color: #2c7a7b;
  margin-bottom: 10px;
}

.stat-box .count {
  font-size: 1.8em;
  font-weight: bold;
  color: #333;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 1.2em;
  color: #2f5233;
}

.stat-item i {
  font-size: 2.5em;
  margin-bottom: 10px;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.stat-item i:hover {
  transform: scale(1.2);
  color: #b56b2f;
}

.stat-item span {
  font-size: 1.5em;
  font-weight: bold;
}
#busuanzi_container_site_pv {
  display: none !important;
}





/* ======= SẢN PHẨM ======= */
#san-pham {
 padding: 40px 20px;
  background-color: var(--green);
  color: white;
  font-family: 'Segoe UI', 'Roboto', sans-serif;
}

#san-pham h2 {
   text-align: center;
  font-size: 36px;
  margin-bottom: 40px;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.product {
  display: flex;
  flex-direction: row;
  gap: 20px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  margin-bottom: 30px;
  padding: 20px;
  flex-wrap: wrap;
}

.product-images {
  position: relative;
  width: 300px;
  height: 300px;
  overflow: hidden;
  border-radius: 10px;
}

.product-images img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
  transition: opacity 0.5s ease;
  border-radius: 10px;
}

.product-images img.active {
  display: block;
}

.product-images button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.4);
  border: none;
  color: white;
  font-size: 24px;
  padding: 6px 12px;
  cursor: pointer;
  border-radius: 50%;
}

.product-images .prev {
  left: 10px;
}

.product-images .next {
  right: 10px;
}

.product-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.product-info h3 {
  font-size: 24px;
  color: #2c3e50;
  margin-bottom: 10px;
}

.product-info .price {
  font-size: 20px;
  color: #e74c3c;
  font-weight: bold;
  margin-bottom: 15px;
}

.product-info p {
  margin: 4px 0;
  font-size: 16px;
  color: #555;
}
.product-images .slide {
  display: none;
  width: 100%;
  border-radius: 10px;
}

.product-images .slide.active {
  display: block;
}


/* Responsive */
@media (max-width: 768px) {
  .product {
    flex-direction: column;
    align-items: center;
  }

  .product-images {
    width: 100%;
    height: auto;
    max-height: 300px;
  }

  .product-info {
    align-items: center;
    text-align: center;
  }
}










/* Container dùng cho từng phần */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 20px;
}



/* Tổng thể wrapper */
.history-wrapper {
  position: relative;
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* Cột trái - Ảnh dọc */
.image-sidebar {
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  flex-direction: column;
  gap: 15px;
  width: 120px;
  padding: 20px;
  background-color: rgba(255, 255, 255, 0.85);
  z-index: 5; /* cao hơn history-section */
  height: 100%;
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

.image-sidebar img {
  width: 100%;
  cursor: pointer;
  border-radius: 8px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.image-sidebar img:hover {
  transform: scale(1.05);
}

/* Phần văn bản - lịch sử */
.history-section {
  flex: 1;
  padding: 60px 60px 60px 180px; /* padding-left đủ để không bị che bởi sidebar */
  background-size: cover;
  background-position: center;
  position: relative;
  z-index: 1; /* thấp hơn sidebar */
  color: #fff;
  transition: background-image 0.5s ease;
}

/* Lớp phủ mờ */
.history-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  z-index: 1;
}

/* Nội dung hiển thị trên overlay */
.history-content {
  position: relative;
  z-index: 2;
}

.history-section h2 {
  font-size: 2em;
  margin-bottom: 30px;
  border-bottom: 2px solid white;
  display: inline-block;
}

.history-text p {
  font-size: 1.2em;
  line-height: 1.8;
  margin-bottom: 20px;
  text-shadow: 1px 1px 3px #000;
}

/* Modal xem ảnh */
.modal {
  display: none;
  position: fixed;
  z-index: 99;
  left: 0; top: 0; width: 100%; height: 100%;
  background-color: rgba(0,0,0,0.8);
}

.modal-content {
  margin: auto;
  display: block;
  max-width: 90%;
  max-height: 90%;
  border-radius: 12px;
}

.close {
  position: absolute;
  top: 30px;
  right: 50px;
  color: #fff;
  font-size: 2em;
  cursor: pointer;
}







.contact-columns {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.contact-columns > div {
  flex: 1;
  min-width: 250px;
}

.contact-columns ul {
  list-style: none;
  padding: 0;
}

.contact-columns li {
  margin-bottom: 10px;
  font-size: 16px;
}

.contact-columns i {
  margin-right: 8px;
}

/* Responsive cho mobile */
@media (max-width: 768px) {
  .contact-columns {
    flex-direction: column;
  }
}



/* Responsive cho mobile */
@media (max-width: 768px) {
  #lien-he {
    padding: 15px 20px;
    width: 100%;
  }

  .contact-columns {
    flex-direction: column;
    gap: 15px;
  }

  .col-left,
  .col-right {
    width: 100%;
    font-size: 1rem;
    text-align: left;
  }
}






/* Section dùng cho từng nhóm nội dung
.section {
  margin-bottom: 60px;
}

.section h2 {
  color: var(--green);
  font-size: 1.8em;
  margin-bottom: 15px;
  border-bottom: 2px solid var(--green);
  display: inline-block;
}

.section p {
  font-size: 1.1em;
  line-height: 1.6;
} */








/* Footer */
footer {
  background-color: var(--green);
  color: var(--white);
  text-align: center;
  padding: 20px;
  font-size: 0.9em;
}






@media (max-width: 768px) {
  .product {
    flex-direction: column;
    text-align: center;
  }

  .product img {
    margin: 0 0 20px 0;
  }
}