body{
    margin:0;
    background:#f5f5f5;
    font-family:Arial,Helvetica,sans-serif;
}

.login-box{
    width:360px;
    margin:120px auto;
    background:#fff;
    padding:30px;
    border-radius:8px;
    box-shadow:0 0 20px rgba(0,0,0,.15);
}

.login-box h2{
    text-align:center;
    margin-bottom:25px;
}

.login-box input{
    width:100%;
    box-sizing:border-box;
    padding:12px;
    margin-bottom:15px;
    border:1px solid #ccc;
    border-radius:5px;
}

.login-box button{
    width:100%;
    padding:12px;
    background:#0b67d0;
    color:white;
    border:0;
    border-radius:5px;
    cursor:pointer;
    font-size:16px;
}

.login-box button:hover{
    background:#084fa1;
}

.error{
    background:#ffd7d7;
    color:#900;
    padding:10px;
    border-radius:5px;
    margin-bottom:15px;
}

.topbar{
    background:#1f2937;
    color:#fff;
    height:60px;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:0 25px;
}

.topbar a{
    color:#fff;
    text-decoration:none;
}

.logo{
    font-size:20px;
    font-weight:bold;
}

nav{
    background:#374151;
    padding:12px 20px;
}

nav a{
    color:white;
    text-decoration:none;
    margin-right:20px;
    font-weight:bold;
}

nav a:hover{
    text-decoration:underline;
}

.content{
    padding:30px;
}

footer{
    text-align:center;
    padding:20px;
    background:#eee;
    margin-top:40px;
}

table{

    border-collapse:collapse;

    width:100%;

    background:white;

}

th{

    background:#1f2937;

    color:white;

}

th,
td{

    padding:12px;

    border:1px solid #ddd;

}

tr:hover{

    background:#f2f2f2;

}

input[type=text]{

    border:1px solid #ccc;

    border-radius:5px;

}

button{

    padding:10px 20px;

    cursor:pointer;

}

.product-card{

    display:flex;

    gap:40px;

    align-items:flex-start;

}

.product-image{

    width:320px;

}

.product-image img{

    width:100%;

    border:1px solid #ccc;

    border-radius:8px;

}

.no-image{

    width:320px;

    height:320px;

    background:#efefef;

    display:flex;

    justify-content:center;

    align-items:center;

    border-radius:8px;

    color:#777;

}

.details{

    width:700px;

}

.details th{

    width:180px;

    text-align:left;

}

.button{

    display:inline-block;

    background:#1f2937;

    color:white;

    padding:10px 20px;

    border-radius:5px;

    text-decoration:none;

    margin-right:10px;

}

.button:hover{

    background:#374151;

}