/* Navigation Buttons */
nav button {
  background-color: #5ab9ea !important;
  border: none !important;
  color: white !important;
  padding: 10px 20px !important;
  margin: 0 10px !important;
  cursor: pointer !important;
  font-size: 18px !important;
  border-radius: 5px !important;
  transition: background-color 0.3s ease 0 !important;
  padding: 12px 20px !important; /* Tăng khoảng cách bên trong button */
  margin-top: 15px !important; /* Tạo khoảng cách phía trên */
  margin-bottom: 15px !important; /* Khoảng cách phía dưới button */
  transition: background-color 0.3s ease, transform 0.3s ease !important;
}

nav button:hover {
  background-color: #00bfff !important;
  transform: scale(1.05) !important;
}

nav button.active {
  background-color: #003366 !important;
}

/* Content sections */
.content-section {
  display: none;
  padding: 30px;
  background-color: white;
  border-radius: 15px;
  margin-bottom: 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

h2 {
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 20px;
}

.content-section.active {
  display: block;
}

/* Layout section styling */
.layout-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 30px;
}

.layout-item {
  background-color: #e0e0e0;
  border-radius: 15px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.layout-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
}

.layout-item h3 {
  font-size: 24px;
  color: #003366;
  margin-bottom: 15px;
  font-weight: bold;
}

/* Upload container */
.upload-container {
  border: 2px dashed #ccc;
  padding: 15px;
  text-align: center;
  border-radius: 10px;
  transition: all 0.3s ease;
}

.upload-container input[type="file"] {
  display: none;
}

.upload-container label {
  background-color: #5ab9ea;
  color: white;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  display: inline-block;
  margin-bottom: 10px;
}

.uploaded-images {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-top: 10px;
}

.uploaded-image-container {
  position: relative;
  max-width: 150px;
}

.uploaded-image {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 5px;
}

.delete-button {
  position: absolute;
  top: 5px;
  right: 5px;
  background-color: red;
  color: white;
  border: none;
  border-radius: 50%;
  padding: 5px;
  cursor: pointer;
  display: inline-block;
}

.error-message {
  color: red;
  margin-top: 10px;
}

/* Color section */
.color-circle {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 10px;
}

/* Image sizes */
.image-sizes {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.image-size {
  background: none;
  border: 100px;
  border-radius: 10%;
  overflow: hidden;
  max-width: 150px;
}

.image-size img {
  width: 100%;
  height: auto;
}

/* Typography section */
.typography-section p {
  line-height: 1.6;
  margin-bottom: 10px;
}

.content-section .typography-section ul {
  margin-left: 20px;
  list-style: disc;
}
/* Responsive Design with Media Queries */
@media (max-width: 968px) {
  /* On smaller screens, stack layout items */
  .layout-container {
    grid-template-columns: 1fr;
  }

  /* Adjust typography */
  .hero h2 {
    font-size: 28px;
  }

  .hero p {
    font-size: 14px;
  }

  nav button {
    margin: 10px 0;
  }

  .layout-item {
    padding: 15px;
  }

  .image-sizes {
    justify-content: center;
  }

  .uploaded-image {
    max-width: 100%; /* Allow images to take up full width */
  }
}

/* For mobile-first (smaller devices) */
@media (max-width: 480px) {
  /* Adjust for very small screens */
  .hero h2 {
    font-size: 24px;
  }

  .hero p {
    font-size: 12px;
  }

  .content-section {
    padding: 15px;
  }

  nav button {
    font-size: 16px;
    padding: 10px;
  }

  .layout-container {
    grid-template-columns: 1fr;
  }

  .layout-item {
    padding: 12px;
  }

  .uploaded-image {
    max-width: 100%;
  }

  .color-circle {
    width: 25px;
    height: 25px;
  }
}

/* Large screens (desktop and above) */
@media (min-width: 1024px) {
  /* Keep the layout as grid with two columns */
  .layout-container {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Increase font size for larger screens */
  .hero h2 {
    font-size: 40px;
  }

  .hero p {
    font-size: 18px;
  }

  .layout-item {
    padding: 20px;
  }
}
/* Style cho nút Reset Images */
#resetButtonLay,
#resetButtonDir {
  background-color: #5ab9ea; /* Màu đỏ nhẹ để biểu thị reset */
  color: white;
  padding: 12px 20px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 18px;
  border: none;
  transition: background-color 0.3s ease, transform 0.3s ease;
  margin-top: 20px; /* Thêm khoảng cách trên nút */
}

#resetButton:hover {
  background-color: #5ab9ea; /* Đổi màu khi hover */
  transform: scale(1.05); /* Phóng to nút khi hover */
}

#resetButton:focus {
  outline: none; /* Loại bỏ viền khi nút được chọn */
}
/* Style cho thông báo Reset thành công */
.reset-message {
  background-color: #4caf50; /* Màu xanh lá cho thông báo thành công */
  color: white;
  padding: 15px;
  border-radius: 5px;
  text-align: center;
  font-size: 18px;
  margin-top: 20px;
  transition: opacity 0.3s ease;
}

.reset-message.error {
  background-color: #ff4d4d; /* Màu đỏ cho thông báo lỗi */
  color: white;
}