/* Complete removal of white border/spacing */
body {
    margin: 0;
    padding: 0;
}

.navbar {
    margin-bottom: 0 !important;
    border-bottom: none !important;
    box-shadow: none !important;
}

main {
    margin-top: 0 !important;
    padding-top: 0 !important;
}

/* Remove margins from all containers */
.container,
.container-fluid {
    margin-top: 0 !important;
    padding-top: 0 !important;
}

/* Remove any Bootstrap default spacing */
.row {
    margin-top: 0 !important;
}

/* Center flash messages */
.alert {
    text-align: center;
    margin: 10px auto;
    max-width: 600px;
}