:root {
    /* DRK Corporate Design */
    --drk-red: #E30613;
    --drk-red-hover: #b8000a;
    --drk-text: #1a1a1a;
    --drk-text-muted: #4a4a4a;
    --drk-bg-light: #f4f4f6;
    --drk-white: #ffffff;
    --drk-focus: #0056b3; /* Barrierefreier Tastatur-Fokus */

    /* Typografie (System-Fonts -> DSGVO-sicher ohne externe Google Fonts) */
    --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    
    /* Layout */
    --max-width: 1200px;
    --radius: 4px;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-stack);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--drk-text);
    background-color: var(--drk-white);
    text-rendering: optimizeLegibility;
}

/* Sichtbarer Tastaturfokus für Screenreader & Tastatur-Navigation */
:focus-visible {
    outline: 3px solid var(--drk-focus);
    outline-offset: 3px;
}

/* Skip-Link für Screenreader (WCAG 2.4.1) */
.skip-link {
    position: absolute;
    top: -100px;
    left: 10px;
    background: var(--drk-red);
    color: var(--drk-white);
    padding: 12px 18px;
    z-index: 9999;
    font-weight: bold;
    text-decoration: none;
    border-radius: var(--radius);
}
.skip-link:focus {
    top: 10px;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.25rem;
}