*{margin:0;padding:0;box-sizing:border-box;font-family:Arial, sans-serif;}
a{text-decoration:none;color:inherit;}

body{
  background:#0f172a;
}

/* login box */
.box{
  background:#fff;
  padding:30px;
  width:min(500px, 92%);
  border-radius:18px;
  box-shadow:0 20px 60px rgba(0,0,0,0.4);
  text-align:center;
}

h1{margin-bottom:10px;}
p{color:#334155;font-weight:700;}
.small{color:#64748b;font-size:13px;margin-top:12px;}

.input{
  width:100%;
  padding:12px;
  border-radius:12px;
  border:1px solid #e2e8f0;
  outline:none;
  font-weight:800;
}

.btn{
  display:inline-block;
  padding:12px 14px;
  border-radius:12px;
  border:none;
  cursor:pointer;
  font-weight:900;
}

.btn.primary{
  background:#2563eb;
  color:#fff;
}

/* dashboard layout */
.dash{
  display:flex;
  min-height:100vh;
  background:#f6f7fb;
}

.sidebar{
  width:260px;
  background:#0f172a;
  color:white;
  padding:20px;
}

.sidebar h2{
  font-size:18px;
  margin-bottom:20px;
  font-weight:900;
}

.sidebar a{
  display:block;
  padding:12px 14px;
  margin-bottom:10px;
  border-radius:12px;
  color:#cbd5e1;
  font-weight:800;
}

.sidebar a:hover,
.sidebar a.active{
  background:#1e293b;
  color:#fff;
}

.main{
  flex:1;
  padding:20px;
}

.topbar{
  background:#fff;
  padding:16px;
  border-radius:14px;
  box-shadow:0 10px 25px rgba(0,0,0,0.05);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}

.topbar h1{
  font-size:18px;
  font-weight:900;
}

.card{
  background:white;
  margin-top:16px;
  padding:18px;
  border-radius:14px;
  box-shadow:0 10px 25px rgba(0,0,0,0.05);
}

.card p{
  margin-top:8px;
  color:#64748b;
}