:root {
    --rbx-blue: #0074BD;
    --rbx-header-gray: #232527;
    --rbx-bg-gray: #E3E3E3;
    --rbx-border: #B8B8B8;
}

body {
    margin: 0;
    font-family: "Gotham", "Segoe UI", Arial, sans-serif;
    background-color: var(--rbx-bg-gray);
    color: #404141;
}

/* 2017-style Navigation */
header {
    background-color: var(--rbx-header-gray);
    height: 40px;
    display: flex;
    align-items: center;
    padding: 0 20px;
    color: white;
}

.nav-item {
    padding: 0 15px;
    text-decoration: none;
    color: white;
    font-size: 14px;
    font-weight: 500;
}

/* Layout Containers */
.container {
    width: 900px;
    margin: 20px auto;
    background: white;
    border: 1px solid var(--rbx-border);
    padding: 20px;
}

.btn-primary {
    background: var(--rbx-blue);
    color: white;
    border: none;
    padding: 8px 20px;
    cursor: pointer;
    border-radius: 2px;
}

.input-field {
    border: 1px solid var(--rbx-border);
    padding: 8px;
    margin-bottom: 10px;
    width: 100%;
}