*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family: 'Intar', sans-serif;
}
body{
    background-color: #131535;
    color:white;
    min-height:100vh;
    overflow-x:hidden;
    background-image: url('video/w.jpg');
    background-repeat: no-repeat;                  
    background-size: cover;                        
    background-position: center center;          
    background-attachment:fixed;
}
.background-video{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:100%;
    object-fit:cover;
    z-index:-1;
    opacity:0.6;
}
.navbar{
    background:rgba(19,21,53,0.9);
    border-bottom:1px solid rgba(255,255,255,0.1);
    z-index:1;
    position:fixed;
    top:0;
    left:0;
    right:0;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:10px 20px;
    height:100px;
}
.logo img{
    height:60px;
    width: auto;
    border-radius:15px;
    border:1px solid rgba(255,255,255,0.2);
}
.searchbox{
    display:flex;
    align-items:center;
    border-radius:4px;
    border:1px solid rgba(255,255,255,0.2);
    padding:0 0 0 10px;
    height:35px;
    width:100%;
    max-width:600px;
    background-color: hwb(0 100% 0%);
    overflow: hidden;
    margin-right:2px;
    margin-left:100px;
}
.searchbox input{
    flex:1;
    border:none;
    background:transparent;
    color:#000000;
    font-size:16px;
    outline:none;
}
.searchbox button{
    background-color: orange;
    border:none;
    cursor:pointer;
    height:100%;
    padding:0px 20px;
}
.danhmuc{
    display: flex;
    font-size: 30px;
    margin-left:100px;
    gap:150px;
}
.danhmuc a{
    color:rgb(68, 64, 121);
    text-decoration:none;
    margin:0 10px;
}
.chuong{
    position:relative;
    margin-left:auto;
    display: flex;
    align-items: center;
}
.chuongicon-btn{
    height:30px;
    width: auto;
    background-color:rgba(19,21,53,0.9);
    font-size:20px;
}
.chuong-content{
    position:absolute;
    top:50px;
    left: 50%;
    transform:translateX(-50%);
    width:auto;
    white-space: nowrap;
    text-align: center;
    background: #1c2035; 
    border:1px solid rgba(255,255,255,0.1);
    z-index:2;
    display:none;
    padding: 10px; 
}
.chuong-content.show {
    display: block;
}
.lichhenicon img{
    height:30px;
    width: auto;
    border-radius:90px;
    border:none;
    margin-left:20px;
    margin-right:20px;
}
.taikhoan{
    font-size: 15px;
    font-weight: bolder;
    font-style: italic;
    border:1px solid rgba(255,255,255,0.2);
    border-radius:4px;
    padding:8px;
    transition: background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 80px;
}
.taikhoan a{
    color:white;
    text-decoration:none;
}
.dangnhap:hover{
    border:1px solid rgba(255,255,255,0.2);
    border-radius:4px;
}
.dangky:hover{
    border:1px solid rgba(255,255,255,0.2);
    border-radius:4px;
}
.user-avatar-round {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid greenyellow;
    cursor: pointer;
    transition: transform 0.2s;
}
.user-avatar-round:hover {
    transform: scale(1.1);
}
.tieude{
    text-align: center;
    margin-top: 150px;
    margin-bottom: 10px;
    font-size: 24px;
    color:whitesmoke;
}
.bangluachon{
    width: 90%;
    max-width: 800px;
    margin:30px auto 10px auto;
    display:flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    padding: 20px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-radius: 5px;
    border: 1px solid rgba(255,255,255,0.1);
}
.tatca{
    padding:24px;
    background: rgba(38, 168, 243, 0.08);
    color:#3498db;
    border:1px solid #f4f5f8;
    border-radius: 2px;
    font-size: 15px;
    cursor: pointer;
    transition:all ease;
}
.onhanvien{
    display:grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    padding: 25px;
    width: 90%;
    max-width: 1800px;
    margin:0 auto;
    margin-bottom: 40px;
}
.nhanvien{
    padding:20px;
    text-align: center;
    transition: 0.3s ease;
    background:rgba(255,255,255,0.1);
    backdrop-filter:blur(10px);
    border-radius: 12px; 
    border:1px solid rgba(255,255,255,0.15);  
}
.nhanvien:hover{
    transform: translateY(-10px);
    border-color: #3498db;
    box-shadow:0 10px 20px rgba(0,0,0,0.3);
}
.anhnhanvien img{
    width:100%;
    height:200px;
    object-fit: contain;
    border-radius:8px;
    margin-bottom:10px;
    background: rgba(0, 0, 0, 0.2);
}
.nhanvien h3{
    font-size:18px;
    color:whitesmoke;
    margin-bottom:5px;
}
.nhanvien p{
    font-size:14px;
    color:rgb(224, 28, 94);
    margin-bottom:8px;
}
.danhgia{
    color:#f1c40f;
    font-weight:bold;
    margin-bottom:10px;
}
.thue{
    width:100%;
    padding:12px;
    background:#3498db;
    color:white;
    border:none;
    border-radius:8px;
    font-weight:bold;
    cursor:pointer;
    transition:0.3s;
    margin-bottom: 5px;
    margin-top: 10px;
}
.thue:hover{
    background:greenyellow;
    color:#000000;
}
.footer{
    text-align: center;
    padding: 30px;
    background:rgba(19,21,53,0.9);
    color:#f4f5f8;
    font-size: 14px;
    margin-top: auto;
}
@media screen and (max-width: 768px) {
    .navbar {
        height: 70px;
        padding: 10px 10px;
        gap: 10px;
    }

    .logo img {
        height: 40px;
    }

    .searchbox {
        margin-left: 5px;
        max-width: 150px;
        height: 30px;
    }
    
    .searchbox input {
        font-size: 13px;
    }

    .searchbox button {
        padding: 0 10px;
        font-size: 13px;
    }

    .danhmuc {
        margin-left: 5px;
        gap: 10px;
        font-size: 14px;
    }

    .danhmuc a {
        margin: 0 2px;
    }

    .chuongicon-btn {
        font-size: 16px;
    }

    .lichhenicon img {
        height: 24px;
        margin-left: 5px;
        margin-right: 5px;
    }

    .taikhoan {
        font-size: 11px;
        padding: 4px;
        min-width: auto;
    }

    .user-avatar-round {
        width: 32px;
        height: 32px;
    }
    
    .banner {
        margin-top: 90px;
    }
    
    .tieude {
        margin-top: 100px;
    }
    
    .hotro {
        margin-top: 120px;
    }
}