@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;600;700&display=swap');

:root{
    --bg:#070707;
    --card:#111111;
    --primary:#ff1a1a;
    --border:#2a0000;
    --text:#f5f5f5;
}

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    background:var(--bg);
    color:var(--text);
    font-family:'Rajdhani',sans-serif;
}

a{
    text-decoration:none;
}

.sidebar{
    width:250px;
    height:100vh;
    position:fixed;
    left:0;
    top:0;
    background:#0b0b0b;
    border-right:1px solid var(--border);
    padding:20px;
}

.logo{
    font-size:28px;
    font-weight:700;
    color:var(--primary);
    margin-bottom:30px;
}

.menu a{
    display:block;
    padding:14px;
    margin-bottom:10px;
    border-radius:10px;
    color:#ccc;
    transition:.3s;
}

.menu a:hover{
    background:rgba(255,0,0,.1);
    color:#fff;
}

.main{
    margin-left:250px;
    padding:30px;
}

.card{
    background:var(--card);
    border:1px solid var(--border);
    border-radius:16px;
    padding:20px;
    box-shadow:0 0 20px rgba(255,0,0,.12);
}

background-image:
linear-gradient(rgba(255,0,0,.03) 1px, transparent 1px),
linear-gradient(90deg, rgba(255,0,0,.03) 1px, transparent 1px);

background-size:40px 40px;