body { font-family: Arial, sans-serif; background:#f9f9f9; margin:0; padding:0;}
header { background:#4CAF50; color:white; padding:15px; display:flex; justify-content:space-between; align-items:center;}
header h1 { margin:0; }
a { text-decoration:none; color:#333; margin-left:10px;}
button { padding:5px 10px; margin:2px; cursor:pointer;}
table { width:100%; border-collapse: collapse; margin-top:15px;}
th, td { border:1px solid #ccc; padding:5px; text-align:center;}
.auth-container { display:flex; flex-direction:column; align-items:center; justify-content:center; min-height:100vh;}
.auth-box { background:white; padding:20px; border-radius:8px; margin:10px; box-shadow:0 2px 8px rgba(0,0,0,0.2);}
.auth-box input { display:block; margin:10px 0; padding:8px; width:100%; }
.auth-box button { width:100%; padding:10px; background:#4CAF50; color:white; border:none; border-radius:5px;}
.auth-box p { text-align:center; }
.auth-box span { color:#4CAF50; cursor:pointer; }