/* Shared responsive foundation for the standalone site pages. */
:root {
    color-scheme: light;
    --site-ink: #172033;
    --site-muted: #5d687b;
    --site-brand: #1768d2;
    --site-brand-dark: #104fa8;
    --site-surface: #fff;
    --site-border: #dce4ef;
    --site-shadow: 0 12px 32px rgba(25, 48, 82, .09);
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
    min-width: 320px;
    scroll-behavior: smooth;
    scroll-padding-top: 1rem;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    max-width: 100%;
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img, svg, video, canvas, iframe { max-width: 100%; }
img { height: auto; }

button, input, select, textarea { max-width: 100%; font: inherit; }
button, [type="button"], [type="submit"], a { -webkit-tap-highlight-color: transparent; }

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
    outline: 3px solid #f2a900;
    outline-offset: 3px;
}

/* Common page shells and content panels. */
:where(.container, .wrapper, .main-container, .content, main) {
    min-width: 0;
}

:where(.card, .tool-card, .result-card, .calculator, .panel, .section-card) {
    border-radius: 16px;
    box-shadow: var(--site-shadow);
}

:where(input, select, textarea) {
    min-height: 44px;
}

table {
    max-width: 100%;
    border-collapse: collapse;
}

@media (max-width: 760px) {
    body { font-size: 16px; }

    :where(.container, .wrapper, .main-container, .content, main) {
        width: min(100% - 28px, 100%);
        margin-right: auto;
        margin-left: auto;
    }

    :where(.grid, .tools-grid, .cards, .card-grid, .row) {
        grid-template-columns: minmax(0, 1fr) !important;
    }

    :where(button, .btn, .button, input[type="submit"]) {
        min-height: 44px;
    }

    :where(table, pre, .table-wrap, .table-responsive) {
        display: block;
        max-width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    :where(h1) { font-size: clamp(1.65rem, 7vw, 2.35rem); }
    :where(h2) { font-size: clamp(1.3rem, 5vw, 1.8rem); }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

.site-seo-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: .55rem;
    width: min(100% - 28px, 1100px);
    margin: .75rem auto;
    padding: .6rem .8rem;
    color: #eaf2ff;
    border: 1px solid rgba(148, 163, 184, .28);
    border-radius: 14px;
    background: linear-gradient(135deg, #132b4d, #183b68);
    box-shadow: 0 8px 24px rgba(15, 35, 65, .16);
}

.site-seo-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: .4rem .85rem;
    color: inherit;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 999px;
    font-size: .92rem;
    font-weight: 650;
    text-decoration: none;
}

.site-seo-nav a:hover,
.site-seo-nav a:focus-visible {
    color: #fff;
    background: #1768d2;
}