.app-container {
    display: flex;
    min-height: 100vh; /* Đảm bảo container chiếm toàn bộ chiều cao màn hình */
    background-color: #f7f7f7; /* Nền nhẹ */
}
body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #fff;
  display: flex;
  height: 100vh;
  transition: margin-left 0.3s ease;
}

/* Sidebar bên trái */
.sidebar {
  width: 220px;
  background-color: #fff3e0; /* màu cam nhạt */
  border-right: 2px solid #f5cc8d;
  padding: 20px 18px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: fixed;
  height: 100vh;
  left: 0;
  top: 0;
  transform: translateX(0);
  transition: transform 0.3s ease;
}

.sidebar.hidden {
  transform: translateX(-220px);
}

.main-content.shifted {
  margin-left: 0;
}

.logo-area {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 35px;
}

.logo {
  display: flex;
  align-items: center;
  font-weight: bold;
  font-size: 16px;
  color: #5a2d00;
  white-space: nowrap;
}

.logo img {
  width: 30px;
  margin-right: 6px;
}

.menu {
  flex-grow: 1;
}

.menu-item {
  display: flex;
  align-items: center;
  color: #d46b08;
  font-size: 16px;
  margin-bottom: 20px;
  cursor: pointer;
  transition: 0.2s;
  text-decoration: none; /* Remove underline from links */
}

.menu-item:hover {
  color: #a85503;
}

.login {
  margin-top: auto;
  font-weight: bold;
  color: #5a2d00;
  cursor: pointer;
  border-top: 1px solid #f2e3c5;
  padding-top: 12px;
  text-align: center;
  text-decoration: none; /* Remove underline from login link */
}

.user-area .login {
    text-decoration: none;      /* Bỏ gạch chân */
    border: none;               /* Bỏ viền nếu có */
    display: block;             /* Để xuống dòng đẹp */
    padding: 1px 0;             /* Khoảng cách dọc */
    color: inherit;             /* Giữ màu chữ như cha */
    transition: color 0.2s;     /* Hiệu ứng hover mượt */
}

.user-area .login:hover {
    color: #e67e22;             /* Đổi màu khi hover (tùy chọn) */
    text-decoration: none;      /* Đảm bảo không có gạch chân khi hover */
}

/* Nội dung chính */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-y: auto;
  position: relative;
  border-right: 2px solid #f5cc8d;
  margin-left: 220px;
  transition: margin-left 0.3s ease;
}

/* Header và tìm kiếm */
header {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  padding: 25px 0 10px 0;
  position: relative;
  box-shadow: none;
}

.search-bar {
  display: flex;
  align-items: center;
  border: 1px solid #ddd;
  border-radius: 25px;
  overflow: hidden;
  width: 55%;
  max-width: 650px;
}

.search-bar input {
  flex: 1;
  border: none;
  padding: 12px 15px;
  outline: none;
  font-size: 15px;
}

.search-bar button {
  background-color: #f57c00;
  border: none;
  color: white;
  padding: 12px 25px;
  cursor: pointer;
  font-weight: bold;
  font-size: 15px;
}

.search-bar button:hover {
  background-color: #e46b00;
}

/* Section món thịnh hành */
.section {
  width: 85%;
  margin: 30px 0;
}

.section h2 {
  color: #4b2e00;
  font-size: 20px;
  margin-bottom: 15px;
}

.food-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  justify-items: center;
}

.food-item {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  width: 100%;
  max-width: 230px;
}

.food-item img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  transition: transform 0.2s;
}

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

.food-item span {
  position: absolute;
  bottom: 8px;
  left: 10px;
  background: rgba(0,0,0,0.5);
  color: #fff;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 14px;
}

/* Gói Premium */
.premium-grid {
  display: flex;
  justify-content: center;
  gap: 25px;
  flex-wrap: nowrap;
}

.premium-item {
  background: #fffef5;
  border: 1px solid #f4e6b3;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
  width: 30%;
}

.premium-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.premium-item h3 {
  font-size: 16px;
  color: #4b2e00;
  margin: 10px 12px 5px 12px;
}

.premium-item p {
  font-size: 14px;
  color: #777;
  margin: 0 12px 15px 12px;
}

/* Nút chuông */
.open-btn {
  position: fixed;
  right: 30px;
  top: 25px;
  background: #f57c00;
  color: white;
  border: none;
  border-radius: 50%;
  width: 45px;
  height: 45px;
  font-size: 22px;
  cursor: pointer;
  box-shadow: 0 2px 5px rgba(0,0,0,0.15);
}

.open-btn:hover {
  background-color: #e46b00;
}

/* Nút toggle sidebar */
.toggle-sidebar {
  position: fixed;
  left: 10px;
  top: 10px;
  background: #f57c00;
  color: white;
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.toggle-sidebar:hover {
  background-color: #e46b00;
}

/* Footer */
footer {
  text-align: center;
  padding: 15px;
  background-color: #fff3e0;
  color: #5a2d00;
  border-top: 2px solid #f5cc8d;
  width: 100%;
}

.category-section .category-content {
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.3s ease;
}

.category-section .category-content.show {
    max-height: 1000px; /* Hoặc dùng JS để set chính xác */
}