:root {
    --brand: #4E888F;
    --ink: #2f3033;
    --brandnightfrost: #0D4B70;
    /* Barrierefreier */
    --brand-text-a11y: #145E56;
    --brand-surface: #3F7277;
    --brand-border: #1F8F82;
}

html {
    font-size: 14px;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
    position: relative;
    min-height: 100%;
}

/*body {
  margin-bottom: 60px;
}
*/
body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f8fb;
    color: #2c3e50;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    text-align: center;
    /*padding: 1rem 1rem 1.5rem;*/
}

    header img {
        max-width: 300px;
        height: auto;
    }

h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

p {
    font-size: 1.2rem;
    max-width: 650px;
    color: #333;
}

a {
    color: var(--brand-text-a11y);
    text-decoration: none;
    font-weight: 500;
}

    a:hover {
        text-decoration: underline;
    }

.img-fluid {
    max-height: 400px !important;
}

html, body {
    height: 100%;
    margin: 0;
}

.site-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

footer {
    background: #eaf2f6;
    font-size: 0.85rem;
    color: #444;
    padding: 1.5rem;
    text-align: center;
    line-height: 1.6;
}

    footer em {
        font-style: italic;
        color: #555;
    }

    footer strong {
        color: #222;
    }

.section {
    margin-bottom: 1.2rem;
}

em {
    display: block;
    margin-top: 0.5rem;
    color: #555;
}

@media print {
    img {
        page-break-inside: avoid;
        break-inside: avoid;
        max-width: 100%;
    }

    .chart-container {
        page-break-inside: avoid;
        break-inside: avoid;
        margin-bottom: 30px;
    }
}