/* ═══════════════════════════════════════════════════════
   Demenznetz — Web Based Training
   Corporate Design CSS
   Wissen, das begleitet. · verständlich · würdevoll · vor Ort
   ═══════════════════════════════════════════════════════ */

/* ── Self-hosted Fonts (tracker-frei, kein Google-CDN) ──
   Die woff2 liegen relativ im Kurs unter ../fonts/.  */
@font-face { font-family:'Bricolage Grotesque'; font-style:normal; font-weight:400; font-display:swap; src:url('../fonts/bricolage-400.woff2') format('woff2'); }
@font-face { font-family:'Bricolage Grotesque'; font-style:normal; font-weight:500; font-display:swap; src:url('../fonts/bricolage-500.woff2') format('woff2'); }
@font-face { font-family:'Bricolage Grotesque'; font-style:normal; font-weight:600; font-display:swap; src:url('../fonts/bricolage-600.woff2') format('woff2'); }
@font-face { font-family:'Bricolage Grotesque'; font-style:normal; font-weight:700; font-display:swap; src:url('../fonts/bricolage-700.woff2') format('woff2'); }
@font-face { font-family:'Source Serif 4'; font-style:normal; font-weight:400; font-display:swap; src:url('../fonts/source-serif-400.woff2') format('woff2'); }
@font-face { font-family:'Source Serif 4'; font-style:italic; font-weight:400; font-display:swap; src:url('../fonts/source-serif-400-italic.woff2') format('woff2'); }
@font-face { font-family:'Source Serif 4'; font-style:normal; font-weight:600; font-display:swap; src:url('../fonts/source-serif-600.woff2') format('woff2'); }
@font-face { font-family:'Source Serif 4'; font-style:italic; font-weight:600; font-display:swap; src:url('../fonts/source-serif-600-italic.woff2') format('woff2'); }

/* ── Design Tokens ─────────────────────────────────── */
:root {
    /* Farben */
    --dn-copper: #B6562A;
    --dn-copper-tief: #7A3E22;
    --dn-loden: #293A23;
    --dn-bone: #E6DAB8;
    --dn-ochre: #A47B3C;
    --dn-ink: #1B1714;
    --dn-loden-dark: #293A23;
    --dn-mittelgrau: #6B7280;
    --dn-hellgrau: #E5E7EB;
    --dn-paper: #F5F0E6;
    --dn-weiss: #FFFFFF;
    --dn-success: #22c55e;
    --dn-error: #ef4444;

    /* Typografie */
    --font-display: 'Bricolage Grotesque', system-ui, sans-serif;
    --font-body: 'Source Serif 4', Georgia, serif;

    /* Abstände */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Layout */
    --content-max-width: 820px;
    --sidebar-width: 280px;
    --header-height: 60px;

    /* Schatten */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);

    /* Übergänge */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;

    /* Radien */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

/* ── Reset & Basis ─────────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    /* 17px statt 16px: Zielgruppe sind aeltere Menschen und Angehoerige.
       Der Skill fordert Body >= 17px — alle rem-Werte skalieren mit. */
    font-size: 17px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--dn-ink);
    background: var(--dn-weiss);
    line-height: 1.6;
    min-height: 100vh;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--dn-copper-tief);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--dn-loden);
    text-decoration: underline;
}

/* ── Typografie ────────────────────────────────────── */
h1, h2, h3 {
    font-family: var(--font-display);
    line-height: 1.2;
}

h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dn-loden);
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dn-loden);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid var(--dn-copper);
}

h3 {
    font-family: var(--font-body);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--dn-ink);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-md);
}

ul, ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

li {
    margin-bottom: var(--spacing-xs);
}

strong {
    font-weight: 600;
}

/* ── Header ────────────────────────────────────────── */
.dn-header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    padding: 0 var(--spacing-lg);
    background: var(--dn-weiss);
    border-bottom: 3px solid var(--dn-copper);
    box-shadow: var(--shadow-sm);
}

.dn-header__logo img {
    height: 40px;
    width: auto;
}

.dn-header__nav {
    display: flex;
    gap: var(--spacing-lg);
}

.dn-header__nav a {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--dn-loden-dark);
    padding: var(--spacing-xs) 0;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
}

.dn-header__nav a:hover,
.dn-header__nav a.active {
    color: var(--dn-loden);
    border-bottom-color: var(--dn-copper);
    text-decoration: none;
}

.dn-header--lektion {
    gap: var(--spacing-md);
}

.dn-header__breadcrumb {
    font-size: 0.875rem;
    color: var(--dn-mittelgrau);
    flex: 1;
    text-align: center;
}

.dn-header__breadcrumb a {
    color: var(--dn-copper-tief);
}

.dn-header__breadcrumb strong {
    color: var(--dn-ink);
}

.dn-header__menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dn-loden);
    padding: var(--spacing-xs);
}

/* ── Hero (Kursbeschreibung) ───────────────────────── */
.dn-hero {
    position: relative;
    background: linear-gradient(135deg, #293A23 0%, #37482c 55%, #4a5c3a 100%);
    color: var(--dn-weiss);
    padding: var(--spacing-3xl) var(--spacing-xl);
    min-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.dn-hero__gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at 70% 30%, rgba(255,255,255,0.15) 0%, transparent 60%);
    pointer-events: none;
}

.dn-hero::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 60px;
    background: var(--dn-weiss);
    clip-path: ellipse(55% 100% at 50% 100%);
}

.dn-hero__content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
}

.dn-hero__content h1 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--dn-weiss);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.dn-hero__subtitle {
    font-size: 1.15rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
}

.dn-hero__meta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.dn-meta-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255,255,255,0.15);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    font-size: 0.9rem;
    backdrop-filter: blur(4px);
}

/* ── Kursbeschreibung (Sektionen) ──────────────────── */
.dn-course-info {
    max-width: 960px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.dn-section {
    margin-bottom: var(--spacing-2xl);
}

.dn-section--highlight {
    background: var(--dn-paper);
    border-left: 4px solid var(--dn-copper);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

/* Checklist (Was werde ich lernen?) */
.dn-checklist {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}

.dn-checklist li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
}

.dn-check-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--dn-copper);
    color: var(--dn-weiss);
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Statistik-Karten */
.dn-section--stats {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    justify-content: center;
}

.dn-stat-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--dn-paper);
    border-radius: var(--radius-md);
    min-width: 140px;
    flex: 1;
    max-width: 200px;
}

.dn-stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dn-loden);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.dn-stat-label {
    font-size: 0.9rem;
    color: var(--dn-mittelgrau);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Accordion (Kursinhalt) */
.dn-accordion {
    border: 1px solid var(--dn-hellgrau);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.dn-accordion__module {
    border-bottom: 1px solid var(--dn-hellgrau);
}

.dn-accordion__module:last-child {
    border-bottom: none;
}

.dn-accordion__module summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    background: var(--dn-weiss);
    transition: background var(--transition-fast);
    list-style: none;
}

.dn-accordion__module summary::-webkit-details-marker {
    display: none;
}

.dn-accordion__module summary::after {
    content: '▸';
    font-size: 1.2rem;
    color: var(--dn-copper);
    transition: transform var(--transition-normal);
}

.dn-accordion__module[open] summary::after {
    transform: rotate(90deg);
}

.dn-accordion__module summary:hover {
    background: var(--dn-paper);
}

.dn-module-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dn-ink);
}

.dn-module-meta {
    font-size: 0.85rem;
    color: var(--dn-mittelgrau);
}

.dn-lesson-list {
    list-style: none;
    padding: 0;
    background: var(--dn-paper);
}

.dn-lesson-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg) var(--spacing-sm) var(--spacing-2xl);
    border-top: 1px solid var(--dn-hellgrau);
}

.dn-lesson-list li a {
    color: var(--dn-ink);
}

.dn-lesson-list li a:hover {
    color: var(--dn-copper-tief);
}

.dn-lesson-list li span {
    font-size: 0.8rem;
    color: var(--dn-mittelgrau);
}

/* Material-Grid */
.dn-material-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.dn-material-card {
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
    background: var(--dn-paper);
    border-radius: var(--radius-md);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.dn-material-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.dn-material-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

/* Hinweis-Box */
.dn-notice-box {
    background: var(--dn-paper);
    border: 1px solid var(--dn-hellgrau);
    border-left: 4px solid var(--dn-bone);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

.dn-notice-box ul {
    margin-bottom: 0;
}

/* Lernziele (nummeriert) */
.dn-objectives {
    counter-reset: objective;
    list-style: none;
    padding: 0;
}

.dn-objectives li {
    counter-increment: objective;
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    align-items: flex-start;
}

.dn-objectives li::before {
    content: counter(objective);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--dn-copper);
    color: var(--dn-weiss);
    border-radius: 50%;
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    flex-shrink: 0;
}

/* Dozenten-Karte */
.dn-instructor-card {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--dn-paper);
    border-radius: var(--radius-md);
}

.dn-instructor-avatar {
    width: 80px;
    height: 80px;
    background: var(--dn-bone);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    flex-shrink: 0;
}

.dn-instructor-info h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-xs);
}

/* CTA-Bereich */
.dn-section--cta {
    text-align: center;
    padding: var(--spacing-2xl) 0;
}

.dn-cta-tagline {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--dn-loden);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

/* ── Buttons ───────────────────────────────────────── */
.dn-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.dn-btn--primary {
    background: var(--dn-copper);
    color: var(--dn-weiss);
}

.dn-btn--primary:hover {
    background: var(--dn-copper-tief);
    color: var(--dn-weiss);
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.dn-btn--large {
    font-size: 1.2rem;
    padding: var(--spacing-md) var(--spacing-2xl);
}

.dn-btn--check {
    background: var(--dn-copper);
    color: var(--dn-weiss);
    margin-top: var(--spacing-md);
}

.dn-btn--check:hover {
    background: var(--dn-copper-tief);
}

.dn-btn--check:disabled {
    background: var(--dn-mittelgrau);
    cursor: not-allowed;
}

.dn-btn--tf {
    background: var(--dn-paper);
    color: var(--dn-ink);
    border: 2px solid var(--dn-hellgrau);
    min-width: 120px;
}

.dn-btn--tf:hover:not(:disabled) {
    border-color: var(--dn-copper);
}

.dn-btn--correct {
    background: #dcfce7 !important;
    border-color: var(--dn-success) !important;
    color: #166534 !important;
}

.dn-btn--wrong {
    background: #fef2f2 !important;
    border-color: var(--dn-error) !important;
    color: #991b1b !important;
}

/* ── Fortschrittsbalken ────────────────────────────── */
.dn-progress {
    position: sticky;
    top: var(--header-height);
    z-index: 90;
    background: var(--dn-weiss);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-bottom: 1px solid var(--dn-hellgrau);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.dn-progress__bar {
    flex: 1;
    height: 8px;
    background: var(--dn-hellgrau);
    border-radius: 4px;
    overflow: hidden;
}

.dn-progress__fill {
    height: 100%;
    background: linear-gradient(90deg, var(--dn-loden), var(--dn-copper));
    border-radius: 4px;
    transition: width var(--transition-normal);
}

.dn-progress__text {
    font-size: 0.8rem;
    color: var(--dn-mittelgrau);
    white-space: nowrap;
}

/* ── Sidebar ───────────────────────────────────────── */
.dn-sidebar {
    position: fixed;
    top: calc(var(--header-height) + 42px);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--dn-weiss);
    border-right: 1px solid var(--dn-hellgrau);
    overflow-y: auto;
    padding: var(--spacing-md);
    display: none;
    z-index: 80;
}

.dn-sidebar h3 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--dn-mittelgrau);
    margin-bottom: var(--spacing-md);
}

.dn-sidebar__lessons {
    list-style: none;
    padding: 0;
}

.dn-sidebar__module {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--dn-loden);
    padding: var(--spacing-md) 0 var(--spacing-xs);
    border-top: 1px solid var(--dn-hellgrau);
}

.dn-sidebar__module:first-child {
    border-top: none;
    padding-top: 0;
}

.dn-sidebar__lesson {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-bottom: 2px;
}

.dn-sidebar__lesson a {
    color: var(--dn-ink);
    font-size: 0.85rem;
    flex: 1;
}

.dn-sidebar__lesson:hover {
    background: var(--dn-paper);
}

.dn-sidebar__lesson.current {
    background: #F4EEE0;
    border-left: 3px solid var(--dn-copper);
}

.dn-sidebar__lesson.current a {
    color: var(--dn-loden);
    font-weight: 600;
}

.dn-sidebar__lesson.done a {
    color: var(--dn-mittelgrau);
}

.dn-sidebar__duration {
    font-size: 0.75rem;
    color: var(--dn-mittelgrau);
}

/* ── Content (Lektionsseiten) ──────────────────────── */
.dn-content {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
}

/* ── Lernziel-Box ──────────────────────────────────── */
.dn-lernziel {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    background: var(--dn-bone);
    color: var(--dn-loden-dark);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
}

.dn-lernziel__icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.dn-lernziel__text {
    font-size: 1rem;
    line-height: 1.5;
}

.dn-lernziel__text strong {
    display: block;
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

/* ── Kerninhalt ────────────────────────────────────── */
.dn-kerninhalt {
    margin-bottom: var(--spacing-xl);
}

.dn-kerninhalt h1 {
    font-size: 1.8rem;
}

/* ── Boxen (Info, Fallbeispiel, Zusammenfassung) ───── */
.dn-box {
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.dn-box__header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(90deg, var(--dn-copper), var(--dn-copper-tief));
    color: var(--dn-weiss);
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.dn-box__header--warm {
    background: linear-gradient(90deg, var(--dn-bone), var(--dn-ochre));
    color: var(--dn-loden-dark);
}

.dn-box__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: rgba(255,255,255,0.2);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    flex-shrink: 0;
}

.dn-box__content {
    padding: var(--spacing-md) var(--spacing-lg);
    border: 1.5px solid var(--dn-hellgrau);
    border-top: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* Zusammenfassung */
.dn-box--summary .dn-box__content {
    border-color: var(--dn-bone);
}

.dn-box--summary .dn-box__content ul {
    list-style: none;
    padding: 0;
}

.dn-box--summary .dn-box__content li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-lg);
    position: relative;
}

.dn-box--summary .dn-box__content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--dn-loden);
    font-weight: 700;
}

/* Warnung / Achtung */
.dn-box--warn .dn-box__header {
    background: linear-gradient(90deg, var(--dn-ochre), var(--dn-copper-tief));
}
.dn-box--warn .dn-box__content {
    background: rgba(164, 123, 60, 0.08);
    border-color: var(--dn-ochre);
}

/* Fallbeispiel */
.dn-box--case .dn-box__content {
    background: var(--dn-paper);
}

.dn-fallbeispiel__frage {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--dn-hellgrau);
    font-style: italic;
}

/* ── Tabellen ──────────────────────────────────────── */
.dn-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
    font-size: 0.95rem;
}

.dn-table thead th {
    background: var(--dn-copper);
    color: var(--dn-weiss);
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
}

.dn-table tbody td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--dn-hellgrau);
}

.dn-table tbody tr:hover {
    background: var(--dn-paper);
}

/* ── Quiz / Interaktionen ──────────────────────────── */
.dn-interaktion,
.dn-wissenscheck {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background: var(--dn-paper);
    border-radius: var(--radius-md);
    border: 1px solid var(--dn-hellgrau);
}

.dn-quiz {
    margin: var(--spacing-md) 0;
}

.dn-quiz__question {
    margin-bottom: var(--spacing-lg);
}

.dn-quiz__prompt {
    font-size: 1.05rem;
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.dn-quiz__options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.dn-quiz__option {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--dn-weiss);
    border: 2px solid var(--dn-hellgrau);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.dn-quiz__option:hover {
    border-color: var(--dn-copper);
    background: #F4EEE0;
}

.dn-quiz__option input[type="radio"] {
    margin-top: 4px;
    accent-color: var(--dn-copper);
}

.dn-quiz__option--correct {
    border-color: var(--dn-success) !important;
    background: #F4EEE0 !important;
}

.dn-quiz__option--wrong {
    border-color: var(--dn-error) !important;
    background: #fef2f2 !important;
}

.dn-quiz__feedback {
    display: block;
    font-size: 0.85rem;
    margin-top: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

/* WICHTIG: hidden-Attribut muss die display-Regel schlagen, sonst sind die
   Lösungen vor dem Prüfen sichtbar (didaktischer Fehler). */
.dn-quiz__feedback[hidden],
.dn-quiz__explanation[hidden],
.dn-quiz__result[hidden] { display: none !important; }

.dn-quiz__feedback--correct {
    color: #166534;
    background: #dcfce7;
}

.dn-quiz__feedback--wrong {
    color: #991b1b;
    background: #fef2f2;
}

.dn-quiz__result {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-align: center;
}

.dn-quiz__result--correct {
    background: #dcfce7;
    color: #166534;
    border: 1px solid var(--dn-success);
}

.dn-quiz__result--wrong {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid var(--dn-error);
}

/* Wahr/Falsch */
.dn-quiz__tf-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.dn-quiz__explanation {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--dn-weiss);
    border-left: 4px solid var(--dn-bone);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
}

/* Lückentext */
.dn-blank {
    border: none;
    border-bottom: 2px solid var(--dn-copper);
    background: transparent;
    font-family: var(--font-body);
    font-size: 1rem;
    padding: 2px 8px;
    min-width: 120px;
    text-align: center;
    transition: border-color var(--transition-fast);
}

.dn-blank:focus {
    outline: none;
    border-bottom-color: var(--dn-loden);
}

.dn-blank--correct {
    border-bottom-color: var(--dn-success) !important;
    background: #F4EEE0;
}

.dn-blank--wrong {
    border-bottom-color: var(--dn-error) !important;
    background: #fef2f2;
}

/* Sortierübung */
.dn-sortable {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.dn-sortable__item {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--dn-weiss);
    border: 2px solid var(--dn-hellgrau);
    border-radius: var(--radius-md);
    cursor: grab;
    user-select: none;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.dn-sortable__item::before {
    content: '⠿';
    color: var(--dn-mittelgrau);
    font-size: 1.2rem;
}

.dn-sortable__item:hover {
    border-color: var(--dn-copper);
    box-shadow: var(--shadow-sm);
}

.dn-sortable__item--dragging,
.dn-sortable__item.is-dragging {
    opacity: 0.5;
    border-color: var(--dn-copper-tief);
}

/* Flashcards */
.dn-flashcards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.dn-flashcard {
    perspective: 800px;
    cursor: pointer;
    height: 180px;
}

.dn-flashcard__front,
.dn-flashcard__back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    transition: transform 0.5s ease;
}

.dn-flashcard__front {
    background: linear-gradient(135deg, var(--dn-copper), var(--dn-copper-tief));
    color: var(--dn-weiss);
}

.dn-flashcard__back {
    background: var(--dn-weiss);
    border: 2px solid var(--dn-copper);
    transform: rotateY(180deg);
}

.dn-flashcard--flipped .dn-flashcard__front {
    transform: rotateY(180deg);
}

.dn-flashcard--flipped .dn-flashcard__back {
    transform: rotateY(0deg);
}

.dn-flashcard__term {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
}

.dn-flashcard__front small {
    margin-top: var(--spacing-sm);
    opacity: 0.7;
    font-size: 0.8rem;
}

/* H5P Container */
.dn-h5p-container {
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--dn-hellgrau);
}

.dn-h5p-container iframe {
    display: block;
    width: 100%;
    min-height: 350px;
    border: none;
}

/* ── Bottom-Navigation ─────────────────────────────── */
.dn-nav-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    border-top: 2px solid var(--dn-hellgrau);
    flex-wrap: wrap;
}

.dn-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-body);
    /* Die Navigation ist die Hauptinteraktion — fuer aeltere Nutzende nicht verkleinern. */
    font-size: 1rem;
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--dn-hellgrau);
    border-radius: var(--radius-md);
    background: var(--dn-weiss);
    color: var(--dn-ink);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.dn-nav-btn:hover {
    border-color: var(--dn-copper);
    color: var(--dn-loden);
    text-decoration: none;
}

.dn-nav-btn--next {
    background: var(--dn-copper);
    color: var(--dn-weiss);
    border-color: var(--dn-copper);
}

.dn-nav-btn--next:hover {
    background: var(--dn-copper-tief);
    border-color: var(--dn-copper-tief);
    color: var(--dn-weiss);
}

.dn-nav-btn--complete {
    background: var(--dn-paper);
    border-color: var(--dn-success);
    color: #166534;
}

.dn-nav-btn--complete:hover {
    background: #dcfce7;
}

.dn-nav-btn--completed {
    background: #dcfce7 !important;
    border-color: var(--dn-success) !important;
    color: #166534 !important;
    cursor: default;
}

/* ── Footer ────────────────────────────────────────── */
.dn-footer {
    background: var(--dn-loden-dark);
    color: var(--dn-weiss);
    padding: var(--spacing-2xl) var(--spacing-lg);
    text-align: center;
}

.dn-footer__logo {
    height: 50px;
    margin: 0 auto var(--spacing-md);
    filter: brightness(0) invert(1);
}

.dn-footer__tagline {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--dn-copper);
    margin-bottom: var(--spacing-sm);
}

.dn-footer p {
    color: var(--dn-mittelgrau);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-xs);
}

.dn-footer--compact {
    padding: var(--spacing-md) var(--spacing-lg);
}

/* ══════════════════════════════════════════════════════
   AVATARE — festes Ensemble „Familie Radtke & das Demenznetz"
   Bausteine, die die festen Avatare tragen. Bilder liegen in
   assets/avatare/ (aus templates/avatare/ 1:1 kopiert).
   ══════════════════════════════════════════════════════ */

/* 1 · Cast-Vorstellung (index.html) ─────────────────── */
.dn-cast {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}
.dn-cast__figur {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--dn-paper);
    border-radius: var(--radius-lg);
}
.dn-cast__foto {
    width: 128px;
    height: 128px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto var(--spacing-sm);
    display: block;
    box-shadow: var(--shadow-sm);
    background: var(--dn-bone);
}
.dn-cast__name {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--dn-loden);
    margin: 0;
}
.dn-cast__rolle {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.8rem;
    letter-spacing: 0.02em;
    color: var(--dn-copper);
    margin: var(--spacing-xs) 0;
}
.dn-cast__satz {
    font-size: 0.95rem;
    color: var(--dn-ink);
    margin: 0;
}

/* 2 · O-Ton / innerer Monolog einer Familienfigur ───── */
.dn-ton {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background: var(--dn-paper);
    border-left: 4px solid var(--dn-bone);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.dn-ton__foto {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    background: var(--dn-bone);
}
.dn-ton__body { flex: 1; }
.dn-ton__zitat {
    font-family: var(--font-body);
    font-style: italic;
    font-size: 1.1rem;
    line-height: 1.5;
    color: var(--dn-loden);
    margin: 0 0 var(--spacing-xs);
}
.dn-ton__wer {
    font-family: var(--font-display);
    font-size: 0.85rem;
    color: var(--dn-copper);
    margin: 0;
}

/* 3 · „Fachliche Einordnung" von Frau Bergmann (Guide) ─ */
.dn-einordnung {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background: var(--dn-weiss);
    border: 1px solid var(--dn-hellgrau);
    border-top: 4px solid var(--dn-copper);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}
.dn-einordnung__foto {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 2px solid var(--dn-copper);
    background: var(--dn-bone);
}
.dn-einordnung__body { flex: 1; }
.dn-einordnung__label {
    display: block;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--dn-copper);
    margin-bottom: var(--spacing-xs);
}
.dn-einordnung__body :last-child { margin-bottom: 0; }

/* 4 · Szenenbild (Familien-Situation) mit Bildunterschrift */
.dn-szene {
    margin: var(--spacing-xl) 0;
}
.dn-szene__bild {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: block;
}
.dn-szene__caption {
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: var(--dn-mittelgrau);
    margin-top: var(--spacing-sm);
    text-align: center;
}

/* 5 · Wechsel-Dialog (zwei Avatare, abwechselnde Sprecher) */
.dn-dialog { margin: var(--spacing-lg) 0; }
.dn-dialog__zeile {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}
.dn-dialog__zeile--rechts { flex-direction: row-reverse; }
.dn-dialog__foto {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    background: var(--dn-bone);
}
.dn-dialog__blase {
    max-width: 80%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--dn-paper);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    line-height: 1.45;
}
.dn-dialog__zeile--rechts .dn-dialog__blase {
    background: var(--dn-bone);
}
.dn-dialog__wer {
    display: block;
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--dn-copper);
    margin-bottom: 2px;
}

/* KI-Transparenz-Hinweis (EU AI Act, Art. 50) ───────── */
.dn-ki-hinweis {
    font-family: var(--font-display);
    font-size: 0.78rem;
    color: var(--dn-mittelgrau);
    margin-top: var(--spacing-xs);
    opacity: 0.9;
}
.dn-ki-hinweis::before {
    content: "🅰 ";
    font-style: normal;
}
.dn-ki-box {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    margin: var(--spacing-md) 0;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--dn-paper);
    border: 1px dashed var(--dn-hellgrau);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: var(--dn-mittelgrau);
    line-height: 1.4;
}
.dn-ki-box__icon { flex-shrink: 0; font-size: 1.1rem; line-height: 1.2; }

/* Rechts-/Wissensstand-Badge */
.dn-rechtsstand {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--dn-copper-tief);
    background: var(--dn-bone);
    padding: 3px 12px;
    border-radius: 999px;
}
.dn-rechtsstand::before { content: "⚖ "; }
.dn-ki-box__label { height: 22px; width: auto; flex-shrink: 0; align-self: center; }

/* Aufklappbare Text-Alternative (z. B. Tabelle zu einer Animation) */
.dn-details {
    margin: var(--spacing-md) 0 var(--spacing-lg);
    border: 1px solid var(--dn-hellgrau);
    border-radius: var(--radius-md);
    background: var(--dn-weiss);
    overflow: hidden;
}
.dn-details > summary {
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-display);
    font-size: 0.95rem;
    color: var(--dn-loden);
    background: var(--dn-paper);
    list-style-position: inside;
}
.dn-details[open] > summary { border-bottom: 1px solid var(--dn-hellgrau); }
.dn-details > *:not(summary) { margin: var(--spacing-md); }

/* Intro-Film (Seedance) */
.dn-video { margin: 0 0 var(--spacing-md); }
.dn-video__player {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    background: var(--dn-loden);
}

/* Offizielles „AI GENERATED"-Label als Ecken-Overlay auf KI-Bildern/-Videos */
.dn-szene, .dn-video { position: relative; }
.dn-ai-label {
    position: absolute;
    left: 12px;
    top: 12px;
    width: 108px;
    height: auto;
    padding: 5px 9px;
    background: rgba(255, 255, 255, 0.82);
    border-radius: 999px;
    box-shadow: var(--shadow-sm);
    pointer-events: none;
}
@media (max-width: 767px) { .dn-ai-label { width: 84px; left: 8px; top: 8px; } }

/* ── Responsive ────────────────────────────────────── */

/* Mobile (< 768px) */
@media (max-width: 767px) {
    .dn-header__nav { display: none; }
    .dn-header__menu-toggle { display: block; }
    .dn-header__breadcrumb { font-size: 0.75rem; }

    .dn-hero__content h1 { font-size: 1.8rem; }
    .dn-hero { min-height: 240px; padding: var(--spacing-xl) var(--spacing-md); }

    .dn-sidebar--open {
        display: block;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        z-index: 200;
        background: var(--dn-weiss);
    }

    .dn-content { padding: var(--spacing-md); }

    .dn-nav-bottom {
        flex-direction: column;
        align-items: stretch;
    }

    .dn-nav-btn { justify-content: center; }

    .dn-section--stats { flex-direction: column; }
    .dn-stat-card { max-width: 100%; }

    .dn-checklist { grid-template-columns: 1fr; }

    .dn-quiz__tf-buttons { flex-direction: column; }

    .dn-flashcards { grid-template-columns: 1fr; }
}

/* Tablet (768px – 1023px) */
@media (min-width: 768px) {
    .dn-sidebar { display: block; }
    body.dn-lektion .dn-content {
        margin-left: var(--sidebar-width);
    }

    .dn-checklist {
        grid-template-columns: 1fr 1fr;
    }
}

/* Desktop (>= 1024px) */
@media (min-width: 1024px) {
    .dn-hero__content h1 { font-size: 3.2rem; }

    body.dn-lektion .dn-content {
        margin-left: calc(var(--sidebar-width) + var(--spacing-xl));
        max-width: var(--content-max-width);
    }
}

/* ── Print ─────────────────────────────────────────── */
@media print {
    .dn-header,
    .dn-sidebar,
    .dn-nav-bottom,
    .dn-progress,
    .dn-footer,
    .dn-h5p-container,
    .dn-header__menu-toggle,
    .dn-btn,
    .dn-quiz__tf-buttons button,
    .dn-nav-btn {
        display: none !important;
    }

    body, body.dn-lektion .dn-content {
        margin: 0;
        max-width: 100%;
        padding: 0;
    }

    .dn-hero {
        background: none;
        color: var(--dn-ink);
        padding: var(--spacing-md) 0;
        min-height: auto;
    }

    .dn-hero__gradient,
    .dn-hero::after { display: none; }

    .dn-hero__content h1 {
        color: var(--dn-ink);
        font-size: 1.5rem;
    }

    h2 { page-break-after: avoid; }
    .dn-box { break-inside: avoid; }

    a::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: var(--dn-mittelgrau);
    }
}

/* ── Scroll-Animationen ────────────────────────────── */
@keyframes dn-fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes dn-fadeInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes dn-fadeInRight {
    from { opacity: 0; transform: translateX(30px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes dn-scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to   { opacity: 1; transform: scale(1); }
}

@keyframes dn-slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Elemente starten unsichtbar, werden per IntersectionObserver sichtbar.
   Nur bei aktivem JS (html.js) ausblenden – ohne JS bleibt alles lesbar. */
.js .dn-animate {
    opacity: 0;
}

.dn-animate--visible {
    animation-duration: 0.6s;
    animation-fill-mode: both;
    animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
}

.dn-animate--fade-up.dn-animate--visible    { animation-name: dn-fadeInUp; }
.dn-animate--fade-left.dn-animate--visible  { animation-name: dn-fadeInLeft; }
.dn-animate--fade-right.dn-animate--visible { animation-name: dn-fadeInRight; }
.dn-animate--scale-in.dn-animate--visible   { animation-name: dn-scaleIn; }
.dn-animate--slide-down.dn-animate--visible { animation-name: dn-slideDown; }

/* Stagger-Delays für Listen */
.dn-animate--delay-1 { animation-delay: 0.1s; }
.dn-animate--delay-2 { animation-delay: 0.2s; }
.dn-animate--delay-3 { animation-delay: 0.3s; }
.dn-animate--delay-4 { animation-delay: 0.4s; }
.dn-animate--delay-5 { animation-delay: 0.5s; }

/* ── Micro-Interactions ───────────────────────────── */

/* Pulse-Glow auf interaktiven Elementen */
@keyframes dn-pulse-glow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(182, 86, 42, 0.4); }
    50%      { box-shadow: 0 0 0 8px rgba(182, 86, 42, 0); }
}

.dn-quiz:not(.dn-quiz--answered) .dn-btn--check,
.dn-nav-btn--next {
    animation: dn-pulse-glow 2s ease-in-out infinite;
}

.dn-quiz--answered .dn-btn--check {
    animation: none;
}

/* Hover-Lift auf Karten */
.dn-material-card,
.dn-stat-card,
.dn-flashcard,
.dn-box {
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.dn-material-card:hover,
.dn-stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Quiz-Option Hover-Animation */
.dn-quiz__option {
    transition: all var(--transition-fast), transform 0.2s ease;
}

.dn-quiz__option:hover {
    transform: translateX(4px);
}

/* ── Konfetti / Celebration ───────────────────────── */
@keyframes dn-confetti-fall {
    0%   { transform: translateY(-10px) rotate(0deg); opacity: 1; }
    100% { transform: translateY(120px) rotate(720deg); opacity: 0; }
}

.dn-confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    overflow: hidden;
}

.dn-confetti-piece {
    position: absolute;
    width: 10px;
    height: 10px;
    border-radius: 2px;
    animation: dn-confetti-fall 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

/* Quiz-Erfolg Animation */
@keyframes dn-success-bounce {
    0%   { transform: scale(0.8); opacity: 0; }
    50%  { transform: scale(1.05); }
    100% { transform: scale(1); opacity: 1; }
}

.dn-quiz__result--correct {
    animation: dn-success-bounce 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* Quiz-Fehler Shake */
@keyframes dn-error-shake {
    0%, 100% { transform: translateX(0); }
    20%      { transform: translateX(-6px); }
    40%      { transform: translateX(6px); }
    60%      { transform: translateX(-4px); }
    80%      { transform: translateX(4px); }
}

.dn-quiz__result--wrong {
    animation: dn-error-shake 0.5s ease forwards;
}

/* ── Typewriter-Effekt ────────────────────────────── */
.dn-typewriter {
    overflow: hidden;
    border-right: 3px solid var(--dn-copper);
    white-space: nowrap;
    animation: dn-typing 2s steps(40) forwards, dn-blink-caret 0.75s step-end infinite;
    width: 0;
}

@keyframes dn-typing {
    from { width: 0; }
    to   { width: 100%; }
}

@keyframes dn-blink-caret {
    50% { border-color: transparent; }
}

/* ── Audio-Player (Lektion anhören) ──────────────── */
.dn-audio-player {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(90deg, var(--dn-paper), var(--dn-weiss));
    border: 1px solid var(--dn-hellgrau);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

.dn-audio-player__btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--dn-copper);
    color: var(--dn-weiss);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.dn-audio-player__btn:hover {
    background: var(--dn-copper-tief);
    transform: scale(1.05);
}

.dn-audio-player__waveform {
    flex: 1;
    height: 36px;
    display: flex;
    align-items: center;
    gap: 2px;
}

.dn-audio-player__bar {
    width: 3px;
    background: var(--dn-copper);
    border-radius: 2px;
    transition: height 0.15s ease;
}

.dn-audio-player__bar--inactive {
    background: var(--dn-hellgrau);
}

.dn-audio-player__time {
    font-size: 0.8rem;
    color: var(--dn-mittelgrau);
    white-space: nowrap;
}

.dn-audio-player__label {
    font-size: 0.85rem;
    color: var(--dn-mittelgrau);
}

/* ── Branching Scenario ──────────────────────────── */
.dn-scenario {
    margin: var(--spacing-xl) 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 2px solid var(--dn-copper);
}

.dn-scenario__header {
    background: linear-gradient(135deg, var(--dn-copper), var(--dn-copper-tief));
    color: var(--dn-weiss);
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.dn-scenario__header-icon {
    font-size: 1.3rem;
}

.dn-scenario__scene {
    padding: var(--spacing-lg);
    background: var(--dn-weiss);
    display: none;
}

.dn-scenario__scene.active {
    display: block;
    animation: dn-fadeInUp 0.4s ease forwards;
}

.dn-scenario__narrative {
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--dn-paper);
    border-left: 4px solid var(--dn-bone);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.dn-scenario__narrative .dn-scenario__character {
    font-weight: 600;
    color: var(--dn-loden);
}

.dn-scenario__image {
    width: 100%;
    max-height: 300px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.dn-scenario__prompt {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: var(--dn-loden-dark);
}

.dn-scenario__choices {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.dn-scenario__choice {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--dn-weiss);
    border: 2px solid var(--dn-hellgrau);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: left;
    font-family: var(--font-body);
    font-size: 1rem;
    width: 100%;
}

.dn-scenario__choice:hover {
    border-color: var(--dn-copper);
    background: #F4EEE0;
    transform: translateX(6px);
    box-shadow: var(--shadow-sm);
}

.dn-scenario__choice-letter {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--dn-copper);
    color: var(--dn-weiss);
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.95rem;
    flex-shrink: 0;
}

.dn-scenario__choice:hover .dn-scenario__choice-letter {
    background: var(--dn-copper-tief);
}

.dn-scenario__feedback {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    animation: dn-fadeInUp 0.3s ease;
    display: none;
}

.dn-scenario__feedback.active {
    display: block;
}

.dn-scenario__feedback--optimal {
    background: #dcfce7;
    border: 1px solid var(--dn-success);
    color: #166534;
}

.dn-scenario__feedback--suboptimal {
    background: #fef3c7;
    border: 1px solid #f59e0b;
    color: #92400e;
}

.dn-scenario__feedback--critical {
    background: #fef2f2;
    border: 1px solid var(--dn-error);
    color: #991b1b;
}

.dn-scenario__feedback-label {
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.dn-scenario__continue {
    margin-top: var(--spacing-md);
    display: none;
}

.dn-scenario__continue.active {
    display: inline-flex;
}

/* Scenario Progress Dots */
.dn-scenario__progress {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--dn-paper);
    border-top: 1px solid var(--dn-hellgrau);
}

.dn-scenario__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--dn-hellgrau);
    transition: all var(--transition-fast);
}

.dn-scenario__dot--active {
    background: var(--dn-copper);
    transform: scale(1.3);
}

.dn-scenario__dot--done {
    background: var(--dn-copper-tief);
}

/* Scenario Ergebnis */
.dn-scenario__result {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.dn-scenario__score-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    color: var(--dn-weiss);
    animation: dn-scaleIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.dn-scenario__score-circle--great {
    background: linear-gradient(135deg, var(--dn-copper), var(--dn-copper-tief));
}

.dn-scenario__score-circle--ok {
    background: linear-gradient(135deg, var(--dn-bone), var(--dn-ochre));
}

.dn-scenario__score-circle--retry {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.dn-scenario__score-number {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
}

.dn-scenario__score-label {
    font-size: 0.8rem;
    opacity: 0.9;
}

/* ── Pexels-Bild mit Quellenangabe ───────────────── */
.dn-pexels-image {
    position: relative;
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.dn-pexels-image img {
    width: 100%;
    border-radius: var(--radius-md);
    transition: transform 0.3s ease;
}

.dn-pexels-image:hover img {
    transform: scale(1.02);
}

.dn-pexels-image__credit {
    position: absolute;
    bottom: 0;
    right: 0;
    background: rgba(0,0,0,0.6);
    color: var(--dn-weiss);
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: var(--radius-sm) 0 var(--radius-md) 0;
}

.dn-pexels-image__credit a {
    color: var(--dn-copper);
}

/* ── Barrierefreiheit ──────────────────────────────── */
:focus-visible {
    outline: 3px solid var(--dn-copper);
    outline-offset: 2px;
}

.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;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
    /* Keine Einblend-Animation: Inhalte sofort sichtbar. */
    .dn-animate, .js .dn-animate { opacity: 1 !important; }
    .dn-confetti { display: none !important; }
}

/* High Contrast */
@media (prefers-contrast: high) {
    :root {
        --dn-hellgrau: #999;
        --dn-paper: #eee;
    }
    .dn-quiz__option { border-width: 3px; }
}