:root {
    --color-background: #ffffff;
    --color-navbar-footer: #f7f9fb;
    --color-app-title: #161918;
    --color-menu-items: #939597;
    --color-text: #212529;
    --color-link: #007bff;
    --color-primary: #17a2b8;
    --color-success: #28a745;
    --color-danger: #dc3545;
    --color-warning: #ffc107;
    --color-info: #17a2b8;
    --color-light: #f8f9fa;
    --color-dark: #343a40;
    --color-white: #ffffff;
    --color-card-bg: #ffffff;
    --color-border: #dee2e6;
}

body {
    background-color: var(--color-background);
    color: var(--color-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
}

h1, h2, h3, h4, h5, h6, p {
    color: var(--color-text);
}

a {
    color: var(--color-link);
    text-decoration: none;
}

a:hover {
    color: var(--color-link);
    text-decoration: none;
}

.navbar {
    background-color: var(--color-navbar-footer) !important;
}

.navbar-brand {
    color: var(--color-app-title) !important;
    font-weight: bold;
}

.nav-link {
    color: var(--color-menu-items) !important;
}

.nav-link.active {
    color: var(--color-primary) !important;
    font-weight: bold;
}

footer {
    background-color: var(--color-navbar-footer);
    color: var(--color-text);
}

/* Force single column layout on small screens */
@media (max-width: 767.98px) {
    body .container .row > div[class*="col-"],
    body .container .row > [class*="col-"],
    body .row > div[class*="col-"],
    body .row > [class*="col-"],
    body [class*="col-"] {
        flex: 0 0 100% !important;
        max-width: 100% !important;
        width: 100% !important;
        min-width: 100% !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
    }

    body .row {
        margin-left: 0 !important;
        margin-right: 0 !important;
        display: block !important;
    }

    body .row > * {
        flex: 0 0 100% !important;
        max-width: 100% !important;
    }
}

/* Ensure minimum padding on very small screens */
@media (max-width: 575.98px) {
    .container {
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
    
    main.container {
        margin-top: 15px !important;
    }
}