*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:'Segoe UI',sans-serif;
}

body{
height:100vh;
background:linear-gradient(135deg,#0f172a,#1e293b,#020617);
display:flex;
justify-content:center;
align-items:center;
color:white;
}

/* tarjeta principal */

.auth-box{
width:420px;
padding:40px;
background:rgba(15,23,42,0.9);
border-radius:16px;
border:1px solid rgba(255,255,255,0.08);
box-shadow:0 20px 60px rgba(0,0,0,0.6);
}

/* logo */

.logo{
font-size:28px;
font-weight:600;
text-align:center;
margin-bottom:10px;
}

.subtitle{
text-align:center;
color:#cbd5f5;
margin-bottom:30px;
}

/* inputs */

.input{
width:100%;
padding:14px;
margin-bottom:15px;
border-radius:8px;
border:1px solid #334155;
background:#020617;
color:white;
font-size:14px;
}

.input:focus{
outline:none;
border-color:#8b5cf6;
}

/* botones */

.btn{
width:100%;
padding:14px;
border:none;
border-radius:8px;
font-size:15px;
cursor:pointer;
margin-top:5px;
}

.btn-login{
background:linear-gradient(135deg,#7c3aed,#6366f1);
color:white;
}

.btn-login:hover{
opacity:0.9;
}

/* links */

.link{
text-align:center;
margin-top:18px;
font-size:14px;
}

.link a{
color:#a78bfa;
text-decoration:none;
}

/* dashboard */

.dashboard{
width:90%;
max-width:1200px;
margin:auto;
}

.card{
background:#0f172a;
border-radius:12px;
padding:20px;
border:1px solid #1e293b;
box-shadow:0 10px 30px rgba(0,0,0,0.5);
}

.table{
width:100%;
margin-top:20px;
border-collapse:collapse;
}

.table th{
text-align:left;
padding:12px;
color:#94a3b8;
}

.table td{
padding:12px;
border-top:1px solid #1e293b;
}

/* botones tabla */

.btn-edit{
background:#f59e0b;
color:black;
padding:6px 10px;
border-radius:6px;
border:none;
cursor:pointer;
}

.btn-delete{
background:#ef4444;
color:white;
padding:6px 10px;
border-radius:6px;
border:none;
cursor:pointer;
}

.btn-copy{
background:#06b6d4;
color:white;
padding:6px 10px;
border-radius:6px;
border:none;
cursor:pointer;
}

@media (max-width:768px){

.sidebar{
position:relative;
width:100%;
height:auto;
display:flex;
flex-direction:row;
justify-content:space-around;
padding:10px;
}

.logo{
display:none;
}

.sidebar a{
flex:1;
text-align:center;
font-size:14px;
margin:5px;
}

.main{
margin-left:0;
padding:15px;
}

.card{
padding:15px;
}

.table{
font-size:14px;
}

}