.btn-as-text {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    color: inherit;
    font: inherit;
    cursor: pointer;
    text-decoration: underline;
}

    .btn-as-text:hover {
        text-decoration: none;
    }

.callout {
    border: 1px solid var(--border);
    border-left-width: 6px;
    border-radius: 10px;
    padding: 1rem;
    background: var(--bg-soft)
}

    .callout.success {
        border-left-color: var(--ok)
    }

    .callout.info {
        border-left-color: var(--accent)
    }

    .callout.warn {
        border-left-color: var(--warn)
    }

    .callout.tip {
        border-left-color: var(--accent)
    }

html {
    scroll-behavior: smooth
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
    gap: .75rem;
    margin-block: .5rem;
}

input[type="number"] {
    width: 100%;
    padding: .5rem .6rem;
    border: 1px solid var(--border);
    border-radius: .5rem;
    background: var(--bg);
    color: var(--fg);
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: .25rem
}

.result {
    display: block;
    margin-top: .75rem;
    padding: .75rem;
    border: 1px dashed var(--accent);
    border-radius: .5rem;
    background: var(--bg);
    font-weight: 600;
}

.scroll-x {
    overflow-x: auto
}

:root {
    --mx: clamp(1rem, 3vw, 1.25rem);
    --bg: #ffffff;
    --fg: #1c1c1c;
    --muted: #6c757d;
    --brand: #0f172a;
    --accent: #2563eb;
    --ok: #16a34a;
    --warn: #d97706;
    --err: #dc2626;
    --border: #e5e7eb;
    --bg-soft: #f8fafc;
}