dnsmasq-webui/src/DnsmasqWebUI/wwwroot/app.css

/* Global styles – mobile-first, consistent spacing */
:root {
    --app-font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
    --app-font-mono: ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, monospace;
    --app-spacing-xs: 0.25rem;
    --app-spacing-sm: 0.5rem;
    --app-spacing-md: 1rem;
    --app-spacing-lg: 1.5rem;
    --app-spacing-xl: 2rem;
    --app-spacing-2xl: 2.5rem;
    --app-content-max-width: 52rem;
    --app-radius: 0.375rem;
    --app-radius-lg: 0.5rem;
    --app-link-color: #0d6efd;
    --app-link-hover: #0a58ca;
    --app-focus-ring: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--app-font-sans);
    line-height: 1.5;
    color: #212529;
    margin: 0;
    min-height: 100vh;
}

a, .btn-link {
    color: var(--app-link-color);
    text-decoration: none;
}

a:hover, .btn-link:hover {
    color: var(--app-link-hover);
    text-decoration: underline;
}

.btn-primary {
    color: #fff;
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
}

/* Consistent secondary/outline buttons – same visual weight as primary */
.btn-outline-primary {
    color: #0d6efd;
    border-color: #0d6efd;
}

.btn-outline-primary:hover:not(:disabled) {
    color: #fff;
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.btn-outline-secondary {
    color: #6c757d;
    border-color: #dee2e6;
}

.btn-outline-secondary:hover:not(:disabled) {
    color: #6c757d;
    background-color: #e9ecef;
    border-color: #dee2e6;
}

.btn:focus-visible, .btn:active:focus, .btn-link.nav-link:focus,
.form-control:focus, .form-check-input:focus {
    box-shadow: var(--app-focus-ring);
    outline: 0;
}

.content {
    padding-top: var(--app-spacing-lg);
    padding-bottom: var(--app-spacing-2xl);
}

@media (min-width: 641px) {
    .content {
        padding-top: var(--app-spacing-xl);
    }
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 2px solid #198754;
}

.invalid {
    outline: 2px solid #dc3545;
}

.validation-message {
    color: #dc3545;
    font-size: 0.875rem;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNTYiIGhlaWdodD0iNDkiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgeG1sbnM6eGxpbms9Imh0dHA6Ly93d3cudzMub3JnLzE5OTkveGxpbmsiIG92ZXJmbG93PSJoaWRkZW4iPjxkZWZzPjxjbGlwUGF0aCBpZD0iY2xpcDAiPjxyZWN0IHg9IjIzNSIgeT0iNTEiIHdpZHRoPSI1NiIgaGVpZ2h0PSI0OSIvPjwvY2xpcFBhdGg+PC9kZWZzPjxnIGNsaXAtcGF0aD0idXJsKCNjbGlwMCkiIHRyYW5zZm9ybT0idHJhbnNsYXRlKC0yMzUgLTUxKSI+PHBhdGggZD0iTTI2My41MDYgNTFDMjY0LjcxNyA1MSAyNjUuODEzIDUxLjQ4MzcgMjY2LjYwNiA1Mi4yNjU4TDI2Ny4wNTIgNTIuNzk4NyAyNjcuNTM5IDUzLjYyODMgMjkwLjE4NSA5Mi4xODMxIDI5MC41NDUgOTIuNzk1IDI5MC42NTYgOTIuOTk2QzI5MC44NzcgOTMuNTEzIDI5MSA5NC4wODE1IDI5MSA5NC42NzgyIDI5MSA5Ny4wNjUxIDI4OS4wMzggOTkgMjg2LjYxNyA5OUwyNDAuMzgzIDk5QzIzNy45NjMgOTkgMjM2IDk3LjA2NTEgMjM2IDk0LjY3ODIgMjM2IDk0LjM3OTkgMjM2LjAzMSA5NC4wODg2IDIzNi4wODkgOTMuODA3MkwyMzYuMzM4IDkzLjAxNjIgMjM2Ljg1OCA5Mi4xMzE0IDI1OS40NzMgNTMuNjI5NCAyNTkuOTYxIDUyLjc5ODUgMjYwLjQwNyA1Mi4yNjU4QzI2MS4yIDUxLjQ4MzcgMjYyLjI5NiA1MSAyNjMuNTA2IDUxWk0yNjMuNTg2IDY2LjAxODNDMjYwLjczNyA2Ni4wMTgzIDI1OS4zMTMgNjcuMTI0NSAyNTkuMzEzIDY5LjMzNyAyNTkuMzEzIDY5LjYxMDIgMjU5LjMzMiA2OS44NjA4IDI1OS4zNzEgNzAuMDg4N0wyNjEuNzk1IDg0LjAxNjEgMjY1LjM4IDg0LjAxNjEgMjY3LjgyMSA2OS43NDc1QzI2Ny44NiA2OS43MzA5IDI2Ny44NzkgNjkuNTg3NyAyNjcuODc5IDY5LjMxNzkgMjY3Ljg3OSA2Ny4xMTgyIDI2Ni40NDggNjYuMDE4MyAyNjMuNTg2IDY2LjAxODNaTTI2My41NzYgODYuMDU0N0MyNjEuMDQ5IDg2LjA1NDcgMjU5Ljc4NiA4Ny4zMDA1IDI1OS43ODYgODkuNzkyMSAyNTkuNzg2IDkyLjI4MzcgMjYxLjA0OSA5My41Mjk1IDI2My41NzYgOTMuNTI5NSAyNjYuMTE2IDkzLjUyOTUgMjY3LjM4NyA5Mi4yODM3IDI2Ny4zODcgODkuNzkyMSAyNjcuMzg3IDg3LjMwMDUgMjY2LjExNiA4Ni4wNTQ3IDI2My41NzYgODYuMDU0N1oiIGZpbGw9IiNGRkU1MDAiIGZpbGwtcnVsZT0iZXZlbm9kZCIvPjwvZz48L3N2Zz4=) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

.blazor-error-boundary::after {
    content: "An error has occurred.";
}

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* Page section – shared by pages for consistent layout */
.page-section {
    margin-bottom: var(--app-spacing-xl);
}

.page-section:last-child {
    margin-bottom: 0;
}

.page-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--app-spacing-sm);
}

/* Wrap text instead of horizontal scroll (WCAG-friendly, better on mobile). pre-wrap keeps newlines so line-by-line is clear. */
.pre-block {
    font-family: var(--app-font-mono);
    font-size: 0.8125rem;
    max-height: 24rem;
    overflow-x: hidden;
    overflow-y: auto;
    padding: var(--app-spacing-md);
    border-radius: var(--app-radius);
    background: #212529;
    color: #f8f9fa;
    white-space: pre-wrap;
    overflow-wrap: break-word;
}

.table-responsive-cards {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Settings gear icon size (Bootstrap Icons) */
.bi-gear-sm {
    font-size: 1.125rem;
}