body { background:#111; color:#ddd; font-family:Arial,Helvetica,sans-serif; margin:0; }
.header { background:#CE0F2E; color:#fff; padding:15px; text-align:center; font-size:28px; font-weight:bold; }
.container { max-width:1100px; margin:20px auto; background:#222; padding:20px; border:2px solid #555; }
table { width:100%; border-collapse:collapse; margin:15px 0; }
th, td { padding:10px; border:1px solid #444; text-align:left; }
th { background:#333; }
a { color:#CE0F2E; text-decoration:none; }
a:hover { color:#fff; }
input, button { padding:8px; margin:5px 0; width:100%; max-width:400px; }
button { background:#CE0F2E; color:#fff; border:none; cursor:pointer; }
.error { color:#ff4444; } .success { color:#44ff44; }