body { font-family: Arial, sans-serif; margin: 0; padding: 0; background: #f5f5f5; }
header { background: #222; color: #fff; padding: 10px 20px; }
header h1 { margin: 0; }
nav a { color: #fff; margin-right: 10px; text-decoration: none; }
main { padding: 20px; }
table { border-collapse: collapse; width: 100%; background: #fff; }
th, td { border: 1px solid #ddd; padding: 8px; }
th { background: #eee; }
.error { color: #b00; }
.success { color: #060; }
.btn { display: inline-block; padding: 6px 12px; background: #007bff; color: #fff; text-decoration: none; border-radius: 3px; }
.resume { background: #fff; padding: 15px; }
.resume h3 { margin-bottom: 5px; }