/* Grundlayout */

body{
font-family: Arial, sans-serif;
background:#f4f6fb;
margin:0;
padding:0;
display:flex;
justify-content:center;
align-items:center;
min-height:100vh;
}

.container{
width:380px;
max-width:95%;
background:white;
padding:25px;
border-radius:15px;
box-shadow:0 10px 30px rgba(0,0,0,0.15);
text-align:center;
}

/* Kreditkarte */

.credit-card{
width:100%;
height:200px;
border-radius:16px;
padding:20px;
color:white;
background:linear-gradient(135deg,#4f46e5,#9333ea);
box-shadow:0 10px 25px rgba(0,0,0,0.3);
display:flex;
flex-direction:column;
justify-content:space-between;
margin-bottom:25px;
position:relative;
}

/* Chip */

.card-chip{
width:40px;
height:30px;
background:gold;
border-radius:6px;
}

/* Titel */

.card-top{
font-size:18px;
font-weight:bold;
}

/* Kartennummer */

.card-number{
font-size:20px;
letter-spacing:3px;
margin-top:10px;
}

/* Guthaben */

.card-balance{
font-size:26px;
font-weight:bold;
}

/* Name */

.card-bottom{
font-size:15px;
opacity:0.9;
}

/* Inputs */

input{
width:100%;
padding:10px;
margin-top:6px;
margin-bottom:6px;
border-radius:8px;
border:1px solid #ddd;
font-size:14px;
box-sizing:border-box;
}

/* Buttons */

button{
width:100%;
padding:10px;
border:none;
border-radius:8px;
cursor:pointer;
font-weight:bold;
margin-top:6px;
font-size:14px;
}

.deposit-btn{
background:#22c55e;
color:white;
}

.withdraw-btn{
background:#ef4444;
color:white;
}

.transfer-btn{
background:#3b82f6;
color:white;
}

button:hover{
opacity:0.9;
}

/* Transaktionen */

.transactions{
margin-top:20px;
text-align:left;
}

.transaction{
display:flex;
justify-content:space-between;
background:#f1f3f9;
padding:10px;
border-radius:8px;
margin-bottom:6px;
font-size:14px;
}

/* Handy Design */

@media (max-width:600px){

.container{
width:95%;
padding:20px;
}

.credit-card{
height:180px;
}

.card-number{
font-size:18px;
}

.card-balance{
font-size:22px;
}

button{
font-size:16px;
padding:12px;
}

input{
font-size:16px;
}

.transaction{
flex-direction:column;
gap:3px;
font-size:13px;
}

}