body {
    text-align: center;
    font-family: Arial, sans-serif;
    background-image: url('image/backgroud.jfif'); 
    background-size: cover;
    background-attachment: fixed;
    padding: 20px;
    
}

.navbar ul {
    list-style-type: none; 
    margin: 20px auto;        
    padding: 0;
    display: flex;          
    justify-content: center;  
    background-color: rgba(51, 51, 51, 0.9); 
    width: fit-content;       
    border-radius: 10px;      
    overflow: hidden;         
}
.navbar li a {
    display: block;         
    color: white;           
    text-align: center;
    padding: 14px 25px;    
    text-decoration: none;
    font-weight: bold;
    font-size: 24px;
}


.navbar li a:hover {
    background-color: rgb(0, 255, 149);
    color: black;
}
.search-container {
    position: static;      
    display: flex;          
    justify-content: center; 
    gap: 5px;
    margin: 20px auto;      
    width: fit-content;     
}

.search-container input {
    padding: 15px 25px;
    border-radius: 20px;
    border: 2px solid #b30000;
    outline: none;
}

.search-container button {
    width: auto; 
    padding: 15px 25px;
    border-radius: 20px;
    background-color: #b30000;
    color: white;
    font-weight: bold;
}
contact-info {
    position: fixed; 
    bottom: 20px;
    right: 20px;
    background-color: rgba(0, 0, 0, 0.8); 
    color: white;
    padding: 15px;
    border-radius: 10px;
    border-left: 5px solid rgb(0, 255, 149); 
    text-align: left;
    box-shadow: 0 4px 15px rgba(0,0,0,0.5);
    z-index: 1000; 
}

.contact-info p {
    margin: 5px 0;
    font-size: 30px;
    color: white; 
}
h1 {
    text-align: center;
    color: #b30000;
    font-size: 60px;
    border: 5px double #b30000; 
    padding: 20px;            
    margin: 20px auto;         
    width: fit-content;         
    background-color: rgba(255, 255, 255, 0.8); 
    border-radius: 15px;       
    box-shadow: 0 0 15px rgba(0,0,0,0.3); 
}

div {
    width: 300px;               
    background-color: white;
    padding: 15px;
    margin: 15px;             
    border: 2px solid #b30000;
    box-shadow: 0 0 10px rgba(0,0,0,0.2);
    display: inline-block;     
    vertical-align: top;        
    text-align: left;         
    border-radius: 10px;
}
img {
    width: 100%;
    border: 1px solid #ccc;
}

h2 {
    color: #333;
}

ul {
    padding-left: 20px;
}

li {
    margin-bottom: 5px;
}

p {
    color: red;
    font-size: 18px;
}


button {
    width: 100%;
    padding: 10px;
    background-color: rgb(0, 255, 149);
    border: none;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    background-color: orange;
}

body {
    text-align: center;
    font-family: Arial, sans-serif;
    background-image: url('image/backgroud.jfif'); 
    background-size: cover;
    background-attachment: fixed;
    padding: 0;
    margin: 0;
}

h1 {
    color: #b30000;
    font-size: 50px;
    border: 5px double #b30000; 
    padding: 15px 30px;            
    margin: 20px auto;         
    width: fit-content;         
    background-color: rgba(255, 255, 255, 0.8); 
    border-radius: 15px;       
    box-shadow: 0 0 15px rgba(0,0,0,0.3); 
}

.search-container {
    display: flex;          
    justify-content: center; 
    gap: 5px;
    margin: 15px auto;      
    width: fit-content;     
}

.search-container input {
    padding: 10px 20px;
    border-radius: 20px;
    border: 2px solid #b30000;
    outline: none;
    width: 250px;
}

.search-container button {
    padding: 10px 20px;
    border-radius: 20px;
    background-color: #b30000;
    color: white;
    font-weight: bold;
    cursor: pointer;
    border: none;
}

.navbar ul {
    list-style-type: none; 
    margin: 10px auto 30px auto;        
    padding: 0;
    display: flex;          
    justify-content: center;  
    background-color: rgba(51, 51, 51, 0.9); 
    width: fit-content;       
    border-radius: 10px;      
    overflow: hidden;         
}

.navbar li a {
    display: block;         
    color: white;           
    padding: 12px 20px;    
    text-decoration: none;
    font-weight: bold;
    font-size: 20px;
}

.navbar li a:hover {
    background-color: rgb(0, 255, 149);
    color: black;
}

/* --- FIX LỖI LỆCH Ở ĐÂY --- */
.product-container {
    display: flex;
    flex-wrap: wrap; /* Cho phép các thẻ bài tự xuống dòng */
    justify-content: center; /* Căn giữa các thẻ bài */
    gap: 20px;
    padding: 20px;
    max-width: 100%;
    margin: 0 auto;
}

.card {
    width: 280px; /* Trả lại độ rộng gần giống 300px ban đầu của bạn */
    background-color: white;
    padding: 15px;
    border: 2px solid #b30000;
    box-shadow: 0 0 10px rgba(0,0,0,0.2);
    text-align: left;         
    border-radius: 10px;
    display: flex;
    flex-direction: column;
}

.card img {
    width: 100%;
    height: auto;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.card h2 {
    color: #333;
    font-size: 16px;
    margin: 10px 0;
    min-height: 40px; /* Đảm bảo tên dài không làm lệch nút bấm */
}

.card p {
    color: red;
    font-size: 18px;
    font-weight: bold;
    margin: 5px 0;
}

.card button {
    width: 100%;
    padding: 10px;
    background-color: rgb(0, 255, 149);
    border: none;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    border-radius: 5px;
    margin-top: auto; /* Đẩy nút bấm xuống đáy thẻ */
}

.card button:hover {
    background-color: orange;
}

.contact-info {
    background-color: rgba(0, 0, 0, 0.8); 
    color: white;
    padding: 15px;
    border-radius: 10px;
    border-left: 5px solid rgb(0, 255, 149); 
    text-align: left;
    margin: 40px auto 20px auto;
    width: fit-content;
}

.contact-info p {
    margin: 5px 0;
    font-size: 16px;
    color: white; 
}

/* --- ĐIỀU CHỈNH RIÊNG CHO MOBILE --- */
@media (max-width: 600px) {
    .card {
        width: 160px; /* Thu nhỏ thẻ bài một chút trên điện thoại để hiện được 2 cột */
        padding: 10px;
    }
    .card h2 {
        font-size: 14px;
    }
    h1 {
        font-size: 24px;
    }
}