:root {
    --primary-color: #003366; /* Seriöses Dunkelblau */
    --secondary-color: #0055a5; /* Helleres Blau für Akzente */
    --accent-color: #8a6a00; /* Dunkler Goldton für bessere Kontraste */
    --text-color: #333333;
    --light-bg: #f4f6f8;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --success-color: #28a745;
    --warning-bg: #fff3cd;
    --warning-text: #856404;
    --font-main: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --max-width: 1200px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 32px;
}

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

body {
    font-family: var(--font-main);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--light-bg);
}

/* --- Typography --- */
h1, h2, h3, h4 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

h1 { font-size: 2.2rem; margin-bottom: var(--spacing-lg); border-bottom: 2px solid var(--accent-color); padding-bottom: 10px; display: inline-block; }
h2 { font-size: 1.8rem; margin-top: var(--spacing-lg); }
h3 { font-size: 1.4rem; color: var(--secondary-color); }

p { margin-bottom: var(--spacing-md); }
ul, ol { margin-bottom: var(--spacing-md); margin-left: 1.5rem; }
li { margin-bottom: 5px; }
a {
    color: var(--secondary-color);
    text-decoration: underline;
    text-underline-offset: 2px;
    text-decoration-thickness: 1px;
    border-bottom: none;
    transition: color 0.2s ease, text-decoration-color 0.2s ease;
}
a:hover {
    color: var(--primary-color);
    text-decoration-color: currentColor;
}

/* --- Layout Components --- */
header {
    background-color: #eeeeee; /* Hellgrau für besseren Kontrast zum Logo */
    padding: var(--spacing-md) 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo-img { /* Stil für das SVG Logo Bild */
    height: 50px; /* Oder eine andere passende Höhe */
    /* Kein Text mehr, daher keine separate Textfarbe */
}

nav ul {
    list-style: none;
    margin: 0;
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

nav a {
    color: var(--text-color); /* Dunkler Text für Lesbarkeit auf hellem Hintergrund */
    font-weight: 500;
    padding: 5px 0;
    text-decoration: none;
}

nav a:hover, nav a.active {
    color: var(--secondary-color); /* Akzentfarbe für Hover/Active */
    border-bottom-color: var(--secondary-color);
}

.main-content {
    max-width: var(--max-width);
    margin: var(--spacing-lg) auto;
    padding: 0 var(--spacing-md);
    background: var(--white);
    min-height: 80vh;
    box-shadow: 0 0 15px rgba(0,0,0,0.05);
    border-radius: 4px;
    padding-top: 40px;
    padding-bottom: 40px;
}

article { max-width: 800px; /* Lesbarkeit */ }

/* --- Specific Components --- */
.info-box {
    background-color: #e8f4fd;
    border-left: 5px solid var(--secondary-color);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    border-radius: 4px;
}

.warning-box {
    background-color: var(--warning-bg);
    border-left: 5px solid #ffc107;
    color: var(--warning-text);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    border-radius: 4px;
}

.cta-button {
    display: inline-block;
    background-color: var(--secondary-color); /* Default for Amazon */
    color: var(--white) !important;
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: bold;
    margin-top: 10px;
    border: none;
    text-align: center; /* Ensure text is centered */
    white-space: nowrap; /* Prevent text wrapping */
    text-decoration: none !important;
}

.cta-button:hover { background-color: var(--primary-color); }

.cta-button.thalia {
    background-color: #1f6f3a; /* Dunkler Grünton für besseren Kontrast */
}

.cta-button.thalia:hover {
    background-color: #17582e; /* Noch dunkler beim Hover */
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-lg);
}

th, td {
    text-align: left;
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
}

th { background-color: var(--light-bg); color: var(--primary-color); }

.book-card {
    display: flex;
    gap: 20px;
    border: 1px solid var(--border-color);
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 4px;
    transition: transform 0.2s;
}

.book-card:hover { transform: translateY(-3px); box-shadow: 0 4px 10px rgba(0,0,0,0.1); }

footer {
    background-color: #222;
    color: #ccc;
    text-align: center;
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-lg);
    font-size: 0.9rem;
}

footer a { color: #fff; }
.logo-link,
.toc-list a,
footer a {
    text-decoration: none;
}

.content-meta {
    font-size: 0.9rem;
    color: #4e5d6d;
    margin-top: calc(var(--spacing-md) * -1);
    margin-bottom: var(--spacing-lg);
}

/* --- Glossary & FAQ Styles --- */
.glossary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.glossary-card {
    background: var(--white);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.2s, box-shadow 0.2s;
}

.glossary-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
}

.glossary-term {
    display: block;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid #eee;
}

.glossary-def {
    font-size: 0.95rem;
    color: #555;
    line-height: 1.5;
}

/* FAQ Accordion Styling */
details {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin-bottom: 10px;
    overflow: hidden;
    transition: all 0.3s;
}

details[open] {
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    border-left: 4px solid var(--accent-color);
}

summary {
    padding: 15px 20px;
    cursor: pointer;
    font-weight: bold;
    background-color: #f9f9f9;
    list-style: none; /* Remove default triangle */
    position: relative;
    padding-right: 40px;
}

summary::-webkit-details-marker {
    display: none;
}

summary::after {
    content: '+';
    position: absolute;
    right: 20px;
    font-size: 1.5rem;
    font-weight: normal;
    color: var(--secondary-color);
    transition: transform 0.2s;
}

details[open] summary::after {
    content: '-';
    transform: rotate(0deg); /* Optional rotation effect */
}

details p {
    padding: 20px;
    margin: 0;
    border-top: 1px solid #eee;
    background-color: var(--white);
}

/* --- Table of Contents (TOC) --- */
.toc-container {
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 30px;
    display: inline-block;
    min-width: 250px;
    max-width: 100%;
}

.toc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: bold;
    color: var(--primary-color);
}

.toc-header:hover {
    color: var(--secondary-color);
}

.toc-toggle {
    font-size: 0.8rem;
    color: #666;
    margin-left: 10px;
}

.toc-list {
    list-style: none;
    margin: 10px 0 0 0;
    padding: 0;
    display: none; /* Standardmäßig eingeklappt */
    border-top: 1px solid #e0e0e0;
    padding-top: 10px;
}

.toc-container.open .toc-list {
    display: block;
}

.toc-list li {
    margin-bottom: 5px;
}

.toc-list a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 0.95rem;
    display: block;
    padding: 2px 0;
}

.toc-list a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Einrückung für H3 */
.toc-list .toc-h3 {
    margin-left: 20px;
    font-size: 0.9rem;
    color: #555;
}

/* Klaro Kontrast-Fixes */
.klaro .cookie-notice .cm-link {
    color: #8cefd1 !important;
    text-decoration: underline;
}

.klaro .cookie-notice .cm-btn.cm-btn-success,
.klaro .cookie-modal .cm-btn.cm-btn-success,
.klaro .context-notice .cm-btn.cm-btn-success {
    background-color: #0f7b5a !important;
    color: #ffffff !important;
}

/* --- Mobile Responsiveness --- */
@media (max-width: 768px) {
    .header-container { flex-direction: column; align-items: flex-start; }
    nav { width: 100%; margin-top: 15px; }
    nav ul { flex-direction: column; gap: 10px; }
    .book-card { flex-direction: column; }
    .glossary-grid { grid-template-columns: 1fr; }
    .toc-container { width: 100%; }
}