*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:Arial, Helvetica, sans-serif;
}

body{
    background:#f5f5f5;
    display:flex;
    min-height:100vh;
}

.sidebar{
    width:260px;
    background:#1f2937;
    color:#fff;
    padding:20px;
}

.sidebar h2{
    margin-bottom:25px;
    font-size:22px;
}

.sidebar a{
    display:block;
    color:#fff;
    text-decoration:none;
    padding:12px 15px;
    border-radius:8px;
    margin-bottom:8px;
    transition:.2s;
}

.sidebar a:hover{
    background:#374151;
}

.content{
    flex:1;
    padding:30px;
}

.card{
    background:#fff;
    border-radius:12px;
    padding:20px;
    margin-bottom:20px;
    box-shadow:0 2px 10px rgba(0,0,0,.08);
}

table{
    width:100%;
    border-collapse:collapse;
    background:#fff;
}

table th,
table td{
    padding:12px;
    border:1px solid #ddd;
    text-align:left;
}

table th{
    background:#f0f0f0;
}

button{
    padding:10px 18px;
    border:none;
    border-radius:8px;
    cursor:pointer;
    background:#2563eb;
    color:#fff;
}

button:hover{
    background:#1d4ed8;
}

input,
select,
textarea{
    width:100%;
    padding:10px;
    border:1px solid #ccc;
    border-radius:8px;
}

.grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:20px;
}



/*dashboard*/

.stats-grid{

    margin-bottom:30px;

}

.roadmap-stage{

    border:1px solid #ddd;
    border-radius:10px;
    padding:20px;
    margin-bottom:20px;

}

.roadmap-stage h3{

    margin-top:0;
    margin-bottom:15px;

}

.roadmap-weeks{

    display:flex;
    flex-wrap:wrap;
    gap:10px;

}

.roadmap-week{

    display:inline-block;

    padding:10px 18px;

    border-radius:8px;

    background:#f5f5f5;

    text-decoration:none;

    color:#333;

    transition:.2s;

}

.roadmap-week:hover{

    background:#4CAF50;

    color:white;

}





/* ===========================
   Video Details
=========================== */

.card{

    max-width:900px;
    margin:30px auto;
    padding:30px;
    border-radius:16px;
    background:#fff;
    box-shadow:0 8px 25px rgba(0,0,0,.08);

}

#video-title{

    max-width:900px;
    margin:30px auto 10px;
    font-size:36px;
    font-weight:700;
    line-height:1.3;

}

/* ===========================
   Info Grid
=========================== */

.video-info{

    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:15px;
    margin-bottom:30px;

}

.video-info div{

    background:#f8f9fb;
    border-radius:10px;
    padding:15px;

}

.video-info strong{

    display:block;
    font-size:13px;
    color:#777;
    margin-bottom:5px;
    text-transform:uppercase;

}

/* ===========================
   Sections
=========================== */

.video-section{

    margin-top:30px;

}

.video-section h3{

    margin-bottom:10px;
    font-size:22px;
    color:#333;

}

.video-section p{

    line-height:1.8;
    color:#444;

}

/* ===========================
   Activities
=========================== */

.activities{

    list-style:none;
    padding:0;
    margin:0;

}

.activities li{

    background:#f5f8ff;
    padding:12px 15px;
    border-left:4px solid #4f8df7;
    border-radius:8px;
    margin-bottom:10px;

}

/* ===========================
   Target
=========================== */

.target{

    display:inline-block;
    background:#e8f5e9;
    color:#2e7d32;
    padding:8px 18px;
    border-radius:30px;
    font-weight:bold;
    font-size:18px;

}

/* ===========================
   Button
=========================== */

.watch-btn{

    display:block;
    width:250px;
    margin:40px auto 0;
    text-align:center;
    background:#ff0000;
    color:#fff;
    padding:15px;
    border-radius:10px;
    text-decoration:none;
    font-size:18px;
    font-weight:bold;
    transition:.2s;

}

.watch-btn:hover{

    background:#d80000;
    transform:translateY(-2px);

}