*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family:Arial,sans-serif;
    background:#f5f8fa;
    color:#333;
    line-height:1.6;
}



header{
    background:#0086c9;
    color:white;
    padding:15px 5%;
    display:flex;
    justify-content:space-between;
    align-items:center;
    flex-wrap:wrap;
}

.logo h1{
    font-size:32px;
}

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

.search-box{
    display:flex;
}

.search-box input{
    width:300px;
    padding:10px;
    border:none;
    outline:none;
}

.search-box button{
    background:#005f8d;
    color:white;
    border:none;
    padding:10px 20px;
    cursor:pointer;
}

.hotline{
    text-align:center;
}



nav{
    background:#005f8d;
    position:relative;
    z-index:9999;
}

nav ul{
    list-style:none;
    display:flex;
    justify-content:center;
    flex-wrap:wrap;
}

nav ul li{
    position:relative;
}

nav ul li a{
    color:white;
    text-decoration:none;
    display:block;
    padding:15px 20px;
    font-weight:bold;
}

nav ul li:hover{
    background:#0077b6;
}



.dropdown-content{
    display:none;
    position:absolute;
    background:white;
    min-width:220px;
    box-shadow:0 0 10px rgba(0,0,0,0.2);
}

.dropdown-content a{
    color:#333 !important;
    border-bottom:1px solid #eee;
}

.dropdown-content a:hover{
    background:#f1f1f1;
}

.dropdown:hover .dropdown-content{
    display:block;
}



.banner{
    position:relative;
    width:100%;
}

.banner img{
    width:100%;
    height:550px;
    object-fit:cover;
}

.banner-overlay{
    position:absolute;
    top:50%;
    left:50%;
    transform:translate(-50%,-50%);
    text-align:center;
    color:white;
    background:rgba(0,0,0,0.4);
    padding:30px;
    border-radius:10px;
}

.banner-overlay h2{
    font-size:50px;
}

.banner-overlay p{
    font-size:20px;
    margin:15px 0;
}

.banner-overlay button{
    background:#ff9800;
    color:white;
    border:none;
    padding:15px 25px;
    font-size:18px;
    cursor:pointer;
    border-radius:5px;
}



.intro{
    width:90%;
    margin:50px auto;
    text-align:center;
}

.intro h2{
    color:#0077b6;
    margin-bottom:20px;
}



.section{
    width:90%;
    margin:60px auto;
}

.section h2{
    text-align:center;
    margin-bottom:30px;
    color:#0077b6;
}



.cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
    gap:25px;
}

.card{
    background:white;
    border-radius:12px;
    overflow:hidden;
    box-shadow:0 3px 12px rgba(0,0,0,0.15);
    transition:0.3s;
}

.card:hover{
    transform:translateY(-8px);
}

.card img{
    width:100%;
    height:240px;
    object-fit:cover;
}

.card h3{
    padding:15px;
    color:#0077b6;
}

.card p{
    padding:0 15px 15px;
}

.card a{
    text-decoration:none;
}

.card button{
    width:100%;
    border:none;
    background:#0086c9;
    color:white;
    padding:15px;
    cursor:pointer;
    font-size:16px;
}

.card button:hover{
    background:#005f8d;
}



.map{
    border-radius:10px;
    overflow:hidden;
}



.booking{
    width:90%;
    margin:60px auto;
}

.booking h2{
    text-align:center;
    margin-bottom:20px;
}

.booking form{
    background:white;
    padding:30px;
    border-radius:10px;
    box-shadow:0 0 10px rgba(0,0,0,0.1);
}

.booking input,
.booking select,
.booking textarea{
    width:100%;
    padding:12px;
    margin:10px 0;
    border:1px solid #ccc;
}

.booking textarea{
    height:120px;
}

.booking button{
    width:100%;
    padding:15px;
    border:none;
    background:#28a745;
    color:white;
    cursor:pointer;
}



.contact{
    width:90%;
    margin:60px auto;
}

.contact-box{
    background:white;
    padding:30px;
    border-radius:10px;
    box-shadow:0 0 10px rgba(0,0,0,0.1);
}



.floating{
    position:fixed;
    right:20px;
    bottom:20px;
    z-index:999;
}


.zalo-btn{
    display:flex;
    justify-content:center;
    align-items:center;
    width:60px;
    height:60px;
    border-radius:50%;
    color:white;
    text-decoration:none;
    margin-top:10px;
    font-weight:bold;
}



.zalo-btn{
    background:#0068ff;
}



footer{
    background:#003554;
    color:white;
    padding:40px 5%;
}

.footer-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:30px;
}

.footer-grid ul{
    list-style:none;
}

.footer-grid li{
    margin-bottom:10px;
}

.copy{
    text-align:center;
    margin-top:20px;
}



@media(max-width:768px){

    header{
        flex-direction:column;
        gap:15px;
        text-align:center;
    }

    .search-box input{
        width:200px;
    }

    .banner img{
        height:350px;
    }

    .banner-overlay h2{
        font-size:28px;
    }

    .footer-grid{
        grid-template-columns:1fr;
    }

}
.detail{

    width:90%;
    max-width:1000px;
    margin:50px auto;

    background:white;

    padding:30px;

    border-radius:10px;

    box-shadow:0 0 10px rgba(0,0,0,0.1);

}

.detail img{

    width:100%;

    height:500px;

    object-fit:cover;

    border-radius:10px;

    margin-bottom:20px;

}

.detail h2{

    color:#0077b6;

    margin:20px 0;

}

.detail ul{

    padding-left:20px;

}

.detail button{

    margin-top:20px;

    background:#0077b6;

    color:white;

    border:none;

    padding:15px 25px;

    cursor:pointer;

}
.card{

    opacity:0;

    transform:translateY(30px);

    transition:0.6s;

}

.card.show{

    opacity:1;

    transform:translateY(0);

}
.tour-img{

    width:100%;

    height:auto;

    display:block;

    border-radius:10px;

    object-fit:contain;

}
.tour-img{

    width:100% !important;

    height:auto !important;

    object-fit:contain !important;

}