body{font-family:Arial,Helvetica,sans-serif;background:#f5f5f5;margin:0;padding:0}
.container{max-width:900px;margin:30px auto;background:#fff;padding:20px;box-shadow:0 2px 6px rgba(0,0,0,.1)}
.header{display:flex;justify-content:space-between;align-items:center}
.header a{margin-left:10px}
.form-group{margin-bottom:12px}
.form-group label{display:block;margin-bottom:6px}
input[type=text],input[type=password],input[type=email],select,textarea{width:100%;padding:8px;border:1px solid #ccc;border-radius:4px}
button{background:#007bff;color:#fff;padding:8px 12px;border:0;border-radius:4px;cursor:pointer}
.ticket{border:1px solid #eee;padding:10px;margin-bottom:10px;border-radius:4px}
.msg-user{background:#e9f7ff;padding:8px;border-radius:6px;margin-bottom:6px}
.msg-admin{background:#fff3cd;padding:8px;border-radius:6px;margin-bottom:6px}
.small{font-size:12px;color:#666}
.link{color:#007bff;text-decoration:none}

nav a{margin-right:10px}