*{
box-sizing:border-box;
}

body{
margin:0;
font-family:system-ui,-apple-system,Segoe UI,Roboto;
background:#0f172a;
color:white;
}

/* HEADER */

.header{
padding:18px;
display:flex;
justify-content:center;
align-items:center;
background:#020617;
border-bottom:1px solid rgba(255,255,255,0.08);
}

.logo{
font-size:22px;
font-weight:700;
letter-spacing:0.5px;
}

/* CARD */

.card{
background:#020617;
border-radius:24px;
padding:20px;
margin:15px;
box-shadow:0 20px 40px rgba(0,0,0,0.4);
border:1px solid rgba(255,255,255,0.05);
}

/* PLAYER */

.player iframe{
width:100%;
height:300px;
border:none;
border-radius:18px;
}

/* GRID */

.grid{
display:grid;
grid-template-columns:repeat(2,1fr);
gap:12px;
padding:10px;
}

/* BUTTONS */

.btn{
display:block;
padding:22px;
border-radius:18px;
background:#1e293b;
text-align:center;
text-decoration:none;
color:white;
font-size:16px;
font-weight:500;
transition:0.25s;
}

.btn:hover{
background:#2563eb;
}

/* FOOTER */

.footer{
text-align:center;
padding:30px;
font-size:14px;
opacity:0.7;
}

/* MOBILE */

@media(max-width:650px){

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

.player iframe{
height:340px;
}

}