/* --------------------------project page------------------------- */
.header-prjMenu {
  display: flex;
  justify-content: center;
  object-fit: fill;

  color: white;
  padding: 20px;
}
.projectBigText {
  display: flex;
  justify-content: center;
  padding: 5vh;
  background-size: 100%;
}
.projectBigText h1 {
  color: #003366;
}
.project-button .btn {
  background-color: var(--background-color-light-blue);
  color: #fff;
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 5px;
  transition: background-color 0.3s ease;
  margin-right: 20px;
}

.project-button .btn:hover {
  background-color: var(--background-color-pale-blue);
}
.button-list {
  margin: 20px;
}

.tab-button {
  font-size: 40px;
  width: 300px;
  height: 50px;
  border-radius: 3px;
  border: none;
  color: white;
  padding: 10px 20px;
  margin: 5px;
  cursor: pointer;
  font-size: 16px;
  transition: background-color 0.3s;
}

.tab-button:hover {
  background-color: #003366;
}

.content-section {
  padding: 20px;
  background-color: #fff;

  border-radius: 8px;
}
.content-section h2 {
  display: flex;
  justify-content: center;
}

.visited-button {
  background-color: #003366;
  color: white;
  padding: 15px 30px;
  border-radius: 5px;
  text-decoration: none;
  display: inline-block;
  margin-top: 20px;
  position: relative;
  transition: top 0.3s ease;
}

.visited-button:visited {
  position: relative;
  top: 5px;
}

th {
  /* background-color:  ; */
  width: 400px;
}
td {
  vertical-align: bottom;
}
th,
td {
  text-align: left;
  border-bottom: 1px solid #ddd;
  padding: 5px;
}

/*             THIS IS DESIGN PART CSS*/

.button-list {
  display: flex;
  flex-direction: column; /* Hoặc row nếu muốn */
  align-items: left;
  justify-content: left;
  width: 100%;
  margin: 0 auto;
}
#small-table {
  width: 70px;
}
.expand-btn {
  border-radius: 3px;
  width: 100%;
  padding: 15px;
  margin: 5px 0;
  background-color: #3a6d8c;
  border: 1px solid #3a6d8c;
  color: white;
  font-size: 18px;
  text-align: left;
  cursor: pointer;
  transition: background-color 0.5s;
}

.expand-btn:hover {
  background-color: #5ab9ea;
}

.content {
  display: none;
  margin-top: 10px;
  background-color: #f0f0f0;
  padding: 20px;
  border-radius: 5px;
  text-align: center;
}

.content img {
  width: 100%;
  max-width: 200px;
  height: auto;
  margin: 10px;
  border-radius: 10px;
}

.div-right, .div-left {
  display: flex;
  flex-direction: column; /* Điều chỉnh hướng nếu cần */
  width: 300px;
  align-items: flex-start; /* Hoặc flex-end nếu muốn */
}
.left-p {
  text-align: left;
  font-size: 25px;
}
.block-div {
  width: 45%;
  box-sizing: border-box;
}

.list {
  display: flex;
  justify-content: space-between;
  gap: 10px; /* Đảm bảo khoảng cách giữa các phần tử */
}

:root {
  --primary-color: #007bff;
  --hover-color: #0056b3;
}
.btn-download {
  margin-top: 10px;
  display: block;
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 10px;
  border-radius: 5px;
  cursor: pointer;
}

.btn-download:hover {
  background-color: var(--hover-color);
}

/*         THIS IS TECHNICAL PART CSS */
/* .header-technical {
  padding: 40px;
  background-color: #3a5335;
  color: white;
} */
.h1-header {
  font-size: 40px;
}
.div-tech {
  margin-left: 10vw;
  margin-right: 10vw;
}
.img-tech {
  width: 100%;
  display: flex;
  justify-content: center;
}
.div-tech p {
  text-align: left;
  font-size: 16px;
}
.div-tech h1 {
  text-align: center;
}
.div-tech img {
  display: flex;
  justify-content: center;
}