/**
 * Grundlegende CSS-Stile für Barrierefreiheit
 * Diese Styles gelten unabhängig vom Barrierefreiheits-Modus
 */

/* Skip-Link - immer vorhanden für Tastaturnutzer */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background-color: #4CAF50;
    color: white;
    padding: 10px 15px;
    z-index: 1001;
    transition: top 0.3s;
    text-decoration: none;
    font-weight: 700;
}

.skip-link:focus {
    top: 0;
}

/* Verbesserte Fokus-Stile für alle interaktiven Elemente */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus,
[tabindex]:focus {
    outline: 3px solid #4CAF50 !important;
    outline-offset: 3px !important;
    text-decoration: underline;
}

/* Screenreader-only Elemente */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Barrierefreiheit-Toggle-Button */
.accessibility-toggle {
    position: fixed;
    right: 80px; /* Platz für andere fixierte Elemente */
    bottom: 20px;
    z-index: 99;
}

#accessibility-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: white;
    color: #1c3d5a;
    border: 2px solid #4CAF50;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

#accessibility-toggle-btn:hover,
#accessibility-toggle-btn:focus {
    background-color: #4CAF50;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

/* Live-Region für Screenreader-Ankündigungen */
#a11y-announcer {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Barrierefreiheits-Modus aktiviert */
.accessibility-mode {
    /* Grundlegende Anpassungen */
    line-height: 1.6;
    letter-spacing: 0.05em;
    word-spacing: 0.1em;
}

.accessibility-mode h1,
.accessibility-mode h2,
.accessibility-mode h3,
.accessibility-mode h4,
.accessibility-mode h5,
.accessibility-mode h6 {
    margin-bottom: 1em;
    line-height: 1.4;
    color: #1c3d5a;
}

.accessibility-mode p,
.accessibility-mode li,
.accessibility-mode td,
.accessibility-mode th,
.accessibility-mode blockquote,
.accessibility-mode label {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 1.2em;
    color: #333;
}

.accessibility-mode a {
    text-decoration: underline;
    color: #1c3d5a;
    font-weight: 700;
}

.accessibility-mode button,
.accessibility-mode .cta-button,
.accessibility-mode input[type="submit"] {
    padding: 12px 24px;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 6px;
}

.accessibility-mode img {
    border: 2px solid #4CAF50;
    border-radius: 6px;
}

/* Responsivität für Barrierefreiheits-Elemente */
@media (max-width: 768px) {
    .accessibility-toggle {
        right: 70px;
        bottom: 15px;
    }
    
    #accessibility-toggle-btn {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .accessibility-toggle {
        right: 60px;
        bottom: 10px;
    }
    
    #accessibility-toggle-btn {
        width: 35px;
        height: 35px;
    }
}