:root {
            --bg: #f3f7f2;
            --bg-card: #ffffff;
            --nav-bg: rgba(243,247,242,0.92);
            --border: rgba(22, 101, 52, 0.14);
            --border-hl: rgba(8, 145, 178, 0.42);
            --text: #102017;
            --muted: #60736a;
            --accent: #2f7d32;
            --accent-dk: #1f5f27;
            --blue: #0e7490;
            --purple: #7c3a96;
            --gold: #b7791f;
            --accent-lg: rgba(47, 125, 50, 0.10);
            --glow: 0 20px 60px -12px rgba(47, 125, 50, 0.24);
            --radius: 1.25rem;
            --fh: 'Space Grotesk', system-ui, sans-serif;
            --fb: 'Inter', system-ui, sans-serif;
        }

        *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
        html { scroll-behavior: smooth; }

        body {
            font-family: var(--fb);
            background:
                linear-gradient(180deg, rgba(255,255,255,0.75), rgba(243,247,242,0.92) 46%, #eef6f0),
                var(--bg);
            color: var(--text);
            line-height: 1.6;
            min-height: 100vh;
        }

        /* Themen-Seiten: Inhalt unter der fixierten Navbar (62px) beginnen */
        body.theme-page { padding-top: 62px; }

        body > nav {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 200;
            background: var(--nav-bg);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            padding: 0 24px;
            height: 62px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .brand-mark {
            width: 30px;
            height: 30px;
            border-radius: 9px;
            background: linear-gradient(135deg, var(--accent), var(--blue));
            color: #fff;
            display: grid;
            place-items: center;
            font-family: var(--fh);
            font-weight: 800;
        }

        .nav-title {
            font-family: var(--fh);
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text);
        }

        .nav-title em { font-style: normal; color: var(--accent); }

        .nav-links {
            display: flex;
            gap: 2px;
            list-style: none;
        }

        .nav-links a {
            color: var(--muted);
            text-decoration: none;
            font-size: 0.84rem;
            font-weight: 600;
            padding: 6px 12px;
            border-radius: 8px;
            transition: color .2s, background .2s;
            white-space: nowrap;
        }

        .nav-links a:hover { color: var(--text); background: rgba(0,0,0,0.05); }

        /* Impressum-Button (immer sichtbar, auch mobil) */
        .nav-impressum {
            color: var(--accent-dk);
            text-decoration: none;
            font-size: 0.82rem;
            font-weight: 700;
            padding: 6px 14px;
            border: 1.5px solid var(--border-hl);
            border-radius: 999px;
            white-space: nowrap;
            flex-shrink: 0;
            transition: background .2s, color .2s, border-color .2s;
        }
        .nav-impressum:hover { background: var(--accent-lg); color: var(--accent-dk); }
        .nav-impressum.active { background: var(--accent); color: #fff; border-color: var(--accent); }

        .theme-nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.25rem;
            padding: 6px 12px;
            cursor: pointer;
            transition: color .2s;
            margin: 0;
            flex-shrink: 0;
            z-index: 210;
        }
        .theme-nav-toggle:hover { color: var(--accent); }
        .theme-nav-toggle:active { color: var(--accent-dk); }
        .theme-nav-toggle:focus { outline: none; }

        @media (max-width: 860px) { .nav-links { display: none; } }
        @media (max-width: 860px) {
            .theme-nav-toggle { display: flex; align-items: center; }
            .theme-nav-toggle { order: 3; }
            .nav-impressum { order: 2; }
        }

        .hero {
            min-height: 86vh;
            display: grid;
            align-items: center;
            padding: 112px 24px 56px;
            position: relative;
            overflow: hidden;
            cursor: zoom-in;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 62px 0 0;
            height: 72%;
            background:
                linear-gradient(90deg,
                    rgba(10, 63, 35, 0.92) 0%,
                    rgba(10, 63, 35, 0.85) 38%,
                    rgba(14, 116, 144, 0.30) 62%,
                    rgba(14, 116, 144, 0.06) 100%
                ),
                url("../images/fitness-ganzheitlich.png") right 4% center / 46% auto no-repeat;
            z-index: -2;
        }

        .hero::after {
            content: "";
            position: absolute;
            left: 0; right: 0; bottom: 0;
            height: 28%;
            background: linear-gradient(180deg, rgba(243,247,242,0), var(--bg));
            z-index: -1;
        }

        .hero-inner {
            width: min(1120px, 100%);
            margin: 0 auto;
            color: #fff;
            padding-top: 42px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.16);
            border: 1px solid rgba(255,255,255,0.34);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 800;
            letter-spacing: 0.07em;
            text-transform: uppercase;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 24px;
        }

        .hero h1 {
            font-family: var(--fh);
            font-size: clamp(2.3rem, 7vw, 5rem);
            font-weight: 700;
            letter-spacing: -0.04em;
            line-height: 1.02;
            max-width: 780px;
            margin-bottom: 20px;
        }

        .hero p {
            font-size: clamp(1rem, 2vw, 1.2rem);
            max-width: 670px;
            color: rgba(255,255,255,0.90);
            line-height: 1.75;
        }

        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 28px;
        }

        .hero-open-hint {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            width: fit-content;
            margin-top: 20px;
            border-radius: 999px;
            padding: 9px 18px;
            background: rgba(255,255,255,0.18);
            border: 1.5px solid rgba(255,255,255,0.50);
            color: #fff;
            font-size: 0.82rem;
            font-weight: 700;
            cursor: zoom-in;
            transition: background .2s, border-color .2s;
            letter-spacing: 0.01em;
        }
        .hero-open-hint::before {
            content: "🔍";
            font-size: 1rem;
        }
        .hero:hover .hero-open-hint {
            background: rgba(255,255,255,0.28);
            border-color: rgba(255,255,255,0.75);
        }

        .section {
            max-width: 1160px;
            margin: 0 auto;
            padding: 0 24px 84px;
        }

        .section-eyebrow {
            font-size: 0.72rem;
            font-weight: 800;
            letter-spacing: 0.10em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 6px;
        }

        .section-heading {
            font-family: var(--fh);
            font-size: clamp(1.45rem, 3vw, 2.1rem);
            font-weight: 700;
            letter-spacing: -0.03em;
            color: var(--text);
            margin-bottom: 18px;
        }

        .section-lead {
            color: var(--muted);
            max-width: 820px;
            margin-bottom: 28px;
            font-size: 0.98rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--bg-card);
            color: var(--text);
            font-family: var(--fb);
            font-size: 0.875rem;
            font-weight: 700;
            cursor: pointer;
            text-decoration: none;
            transition: border-color .2s, box-shadow .2s, color .2s, background .2s, transform .2s;
        }

        .btn:hover {
            border-color: var(--border-hl);
            color: var(--accent);
            box-shadow: 0 4px 14px rgba(47,125,50,0.14);
            transform: translateY(-1px);
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .btn-primary:hover {
            background: var(--accent-dk);
            border-color: var(--accent-dk);
            color: #fff;
        }

        .btn-ghost {
            background: rgba(255,255,255,0.14);
            border-color: rgba(255,255,255,0.34);
            color: #fff;
        }

        .btn-ghost:hover {
            background: rgba(255,255,255,0.22);
            color: #fff;
        }

        .concept-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 22px;
            align-items: start;
        }

        @media (max-width: 900px) { .concept-grid { grid-template-columns: 1fr; } }

        .text-panel,
        .source-panel,
        .quiz-panel {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: 0 10px 30px rgba(18, 64, 35, 0.05);
        }

        .text-panel h3,
        .source-panel h3,
        .quiz-panel h3 {
            font-family: var(--fh);
            font-size: 1.05rem;
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }

        .text-panel p,
        .source-panel p { color: var(--muted); margin-bottom: 14px; }

        .key-list {
            display: grid;
            gap: 10px;
            margin-top: 16px;
        }

        .key-item {
            border-left: 4px solid var(--accent);
            padding: 10px 0 10px 14px;
            color: var(--muted);
        }

        .key-item strong { color: var(--text); }

        .dimensions {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }

        @media (max-width: 900px) { .dimensions { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 560px) { .dimensions { grid-template-columns: 1fr; } }

        .dimension {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 18px;
        }

        .dimension span {
            width: 36px;
            height: 36px;
            display: grid;
            place-items: center;
            border-radius: 10px;
            background: var(--accent-lg);
            color: var(--accent);
            font-weight: 800;
            margin-bottom: 12px;
        }

        .dimension h3 {
            font-family: var(--fh);
            font-size: 1rem;
            margin-bottom: 6px;
        }

        .dimension p {
            color: var(--muted);
            font-size: 0.88rem;
        }

        .print-bar {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .print-hint {
            font-size: 0.82rem;
            color: var(--muted);
        }

        .grafiken-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 20px;
        }

        .grafiken-grid-thumbnails {
            display: grid;
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 14px;
        }

        .grafiken-grid .wide { grid-column: 1 / -1; }
        @media (max-width: 980px) { .grafiken-grid-thumbnails { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
        @media (max-width: 820px) {
            .grafiken-grid { grid-template-columns: 1fr; }
            .grafiken-grid-thumbnails { grid-template-columns: repeat(2, minmax(0, 1fr)); }
        }
        @media (max-width: 620px) {
            .grafiken-grid-thumbnails { grid-template-columns: 1fr; }
        }

        .grafik-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            cursor: zoom-in;
            transition: transform .35s cubic-bezier(.4,0,.2,1),
                        box-shadow .35s cubic-bezier(.4,0,.2,1),
                        border-color .2s;
        }

        .grafik-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--glow);
            border-color: var(--border-hl);
        }

        .grafik-card img {
            width: 100%;
            height: auto;
            display: block;
            background: #fff;
        }

        .grafik-card:not(.wide) img {
            max-width: 100%;
            height: auto;
        }

        .grafik-caption {
            padding: 14px 18px 16px;
            border-top: 1px solid var(--border);
        }

        .grafiken-grid-thumbnails .grafik-caption {
            padding: 8px 10px 10px;
        }

        .grafik-num {
            font-size: 0.68rem;
            font-weight: 800;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 3px;
        }

        .grafiken-grid-thumbnails .grafik-num {
            font-size: 0.65rem;
            margin-bottom: 3px;
            font-weight: 700;
            color: var(--accent);
        }

        .grafik-label {
            font-family: var(--fh);
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 5px;
        }

        .grafiken-grid-thumbnails .grafik-label {
            font-size: 0.8rem;
            margin-bottom: 3px;
            line-height: 1.4;
            font-weight: 700;
        }

        .grafik-hint {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 0.76rem;
            color: var(--muted);
        }

        .grafiken-grid-thumbnails .grafik-hint {
            font-size: 0.6rem;
            display: flex;
            margin-top: 4px;
        }

        /* Unterschiedliche Layouts basierend auf Bildorientierung */
        .grafik-card.portrait {
            grid-column: span 1;
        }

        .grafik-card.landscape {
            grid-column: span 2;
        }

        @media (max-width: 980px) {
            .grafik-card.landscape {
                grid-column: span 2;
            }
        }

        @media (max-width: 820px) {
            .grafik-card.landscape {
                grid-column: span 2;
            }
        }

        @media (max-width: 620px) {
            .grafik-card.landscape {
                grid-column: span 1;
            }
        }

        .source-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 14px;
        }

        @media (max-width: 760px) { .source-grid { grid-template-columns: 1fr; } }

        .source-grid.expanded {
            grid-template-columns: repeat(3, minmax(0, 1fr));
        }

        @media (max-width: 980px) { .source-grid.expanded { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
        @media (max-width: 700px) { .source-grid.expanded { grid-template-columns: 1fr; } }

        .source-link {
            display: block;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 18px;
            color: inherit;
            text-decoration: none;
            transition: border-color .2s, transform .2s, box-shadow .2s;
        }

        .source-link:hover {
            transform: translateY(-3px);
            border-color: var(--border-hl);
            box-shadow: var(--glow);
        }

        .source-link strong {
            display: block;
            font-family: var(--fh);
            margin-bottom: 6px;
        }

        .source-link span {
            display: block;
            color: var(--muted);
            font-size: 0.86rem;
        }

        .source-meta {
            display: inline-flex;
            align-items: center;
            width: fit-content;
            margin-bottom: 10px;
            border-radius: 999px;
            padding: 3px 9px;
            background: var(--accent-lg);
            color: var(--accent);
            font-size: 0.68rem;
            font-weight: 800;
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }

        .source-section {
            position: relative;
            padding-top: 34px;
            padding-bottom: 34px;
            margin-bottom: 84px;
            border: 1px solid rgba(14,116,144,0.24);
            border-radius: 24px;
            background:
                linear-gradient(135deg, rgba(14,116,144,0.12), rgba(47,125,50,0.10)),
                rgba(255,255,255,0.72);
            box-shadow: 0 24px 70px -34px rgba(16,32,23,0.45);
        }

        .source-section::before {
            content: "Quellenbasis";
            position: absolute;
            top: -13px;
            left: 24px;
            border-radius: 999px;
            padding: 5px 12px;
            background: var(--blue);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 800;
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .source-toggle-row {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin: 6px 0 22px;
        }

        .source-collapsible {
            display: none;
        }

        .source-collapsible.open {
            display: block;
        }

        .quiz-layout {
            display: grid;
            grid-template-columns: 0.78fr 1.22fr;
            gap: 18px;
            align-items: start;
        }

        @media (max-width: 860px) { .quiz-layout { grid-template-columns: 1fr; } }

        .quiz-section {
            position: relative;
            padding-top: 34px;
            padding-bottom: 34px;
            margin-bottom: 84px;
            border: 1px solid rgba(47,125,50,0.24);
            border-radius: 24px;
            background:
                linear-gradient(135deg, rgba(47,125,50,0.12), rgba(14,116,144,0.10)),
                rgba(255,255,255,0.72);
            box-shadow: 0 24px 70px -34px rgba(16,32,23,0.45);
        }

        .quiz-section::before {
            content: "Interaktiv";
            position: absolute;
            top: -13px;
            left: 24px;
            border-radius: 999px;
            padding: 5px 12px;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 800;
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .quiz-toggle-row {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin: 6px 0 22px;
        }

        .quiz-collapsible {
            display: none;
        }

        .quiz-collapsible.open {
            display: block;
        }

        .quiz-score {
            display: grid;
            gap: 10px;
        }

        .score-box {
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(47,125,50,0.12), rgba(14,116,144,0.12));
            border: 1px solid var(--border-hl);
            padding: 18px;
        }

        .score-box strong {
            font-family: var(--fh);
            font-size: 2rem;
            display: block;
            color: var(--accent);
        }

        .quiz-mini {
            color: var(--muted);
            font-size: 0.84rem;
        }

        .quiz-progress {
            height: 10px;
            border-radius: 999px;
            background: rgba(47,125,50,0.12);
            overflow: hidden;
            border: 1px solid rgba(47,125,50,0.14);
        }

        .quiz-progress-fill {
            height: 100%;
            width: 0%;
            background: linear-gradient(90deg, var(--accent), var(--blue));
            transition: width .25s ease;
        }

        .quiz-card {
            background: var(--bg-card);
            border: 1px solid rgba(47,125,50,0.20);
            border-radius: 20px;
            padding: 22px;
            box-shadow: 0 16px 44px -30px rgba(16,32,23,0.65);
        }

        .quiz-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 16px;
        }

        .quiz-pill {
            border-radius: 999px;
            padding: 4px 10px;
            background: var(--accent-lg);
            color: var(--accent);
            font-size: 0.72rem;
            font-weight: 800;
        }

        .quiz-card h3 {
            font-family: var(--fh);
            font-size: clamp(1.1rem, 2.3vw, 1.45rem);
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .question {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 18px;
            margin-bottom: 12px;
        }

        .question p {
            font-weight: 800;
            margin-bottom: 12px;
        }

        .answers {
            display: grid;
            gap: 8px;
        }

        .answer {
            width: 100%;
            text-align: left;
            border: 1px solid var(--border);
            background: #fff;
            border-radius: 10px;
            padding: 10px 12px;
            cursor: pointer;
            color: var(--text);
            font-family: var(--fb);
            font-weight: 600;
            transition: border-color .2s, background .2s, transform .2s;
        }

        .answer:hover:not(:disabled) {
            border-color: var(--border-hl);
            transform: translateY(-1px);
        }

        .answer.correct { border-color: rgba(47,125,50,0.72); background: rgba(47,125,50,0.12); }
        .answer.wrong { border-color: rgba(190,18,60,0.62); background: rgba(190,18,60,0.10); }
        .answer:disabled { cursor: default; }

        .feedback {
            color: var(--text);
            font-size: 0.9rem;
            margin-top: 14px;
            min-height: 1.4em;
            border-radius: 12px;
            padding: 12px;
            background: rgba(14,116,144,0.08);
            border: 1px solid rgba(14,116,144,0.16);
            display: none;
        }

        .feedback.show {
            display: block;
        }

        .feedback strong {
            display: block;
            margin-bottom: 3px;
        }

        .feedback.correct strong { color: var(--accent); }
        .feedback.wrong strong { color: #be123c; }

        .quiz-nav {
            display: flex;
            justify-content: space-between;
            gap: 10px;
            margin-top: 16px;
            flex-wrap: wrap;
        }

        .quiz-result {
            margin-top: 12px;
            border-top: 1px solid var(--border);
            padding-top: 12px;
            color: var(--muted);
            font-size: 0.9rem;
        }

        .glossar-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 10px;
        }

        .glossar-section {
            position: relative;
            padding-top: 34px;
            padding-bottom: 34px;
            margin-bottom: 84px;
            border: 1px solid rgba(124,58,150,0.24);
            border-radius: 24px;
            background:
                linear-gradient(135deg, rgba(124,58,150,0.10), rgba(47,125,50,0.10)),
                rgba(255,255,255,0.72);
            box-shadow: 0 24px 70px -34px rgba(16,32,23,0.45);
        }

        .glossar-section::before {
            content: "Fachsprache";
            position: absolute;
            top: -13px;
            left: 24px;
            border-radius: 999px;
            padding: 5px 12px;
            background: var(--purple);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 800;
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .glossar-toggle-row {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin: 6px 0 22px;
        }

        .glossar-collapsible {
            display: none;
        }

        .glossar-collapsible.open {
            display: block;
        }

        .glossar-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 12px;
            overflow: hidden;
            transition: border-color .2s;
        }

        .glossar-item:hover { border-color: var(--border-hl); }

        .glossar-trigger {
            width: 100%;
            background: none;
            border: none;
            padding: 13px 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            cursor: pointer;
            text-align: left;
            font-family: var(--fb);
        }

        .g-letter {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 6px;
            background: var(--accent-lg);
            color: var(--accent);
            font-size: 0.72rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .g-term {
            flex: 1;
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--text);
        }

        .g-chevron {
            flex-shrink: 0;
            color: var(--muted);
            transition: transform .2s;
        }

        .glossar-item.open .g-chevron { transform: rotate(180deg); }
        .glossar-item.open .g-letter { background: var(--accent); color: #fff; }

        .g-def {
            display: none;
            padding: 11px 16px 14px 52px;
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.65;
            border-top: 1px solid var(--border);
        }

        .glossar-item.open .g-def { display: block; }

        .lightbox {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 500;
            background: rgba(2, 6, 23, 0.88);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .lightbox.active { display: flex; flex-direction: column; }

        .lb-topbar {
            position: absolute;
            top: 0; left: 0; right: 0;
            min-height: 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 16px;
            z-index: 10;
            background: linear-gradient(to bottom, rgba(0,0,0,0.45), transparent);
            gap: 12px;
        }

        .lb-label {
            font-size: 0.82rem;
            font-weight: 700;
            color: rgba(255,255,255,0.78);
        }

        .lb-controls {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            justify-content: flex-end;
        }

        .lb-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255,255,255,0.12);
            border: 1px solid rgba(255,255,255,0.20);
            color: #fff;
            height: 36px;
            min-width: 36px;
            padding: 0 10px;
            border-radius: 9px;
            cursor: pointer;
            font-size: 0.85rem;
            font-family: var(--fb);
            font-weight: 700;
            transition: background .2s;
            white-space: nowrap;
        }

        .lb-btn:hover { background: rgba(255,255,255,0.22); }
        .lb-btn:disabled { opacity: 0.4; cursor: default; }
        .lb-btn:disabled:hover { background: rgba(255,255,255,0.12); }

        .lb-btn-close {
            background: rgba(220,38,38,0.30);
            border-color: rgba(220,38,38,0.40);
        }

        .lb-btn-close:hover { background: rgba(220,38,38,0.55); }

        .lb-scroll {
            flex: 1;
            overflow: auto;
            -webkit-overflow-scrolling: touch;
            display: flex;
            align-items: flex-start;
            justify-content: center;
            padding: 74px 20px 24px;
        }

        .lb-img-wrap { display: inline-block; }

        .lb-img-wrap img {
            display: block;
            height: auto;
            border-radius: 6px;
            box-shadow: 0 32px 80px rgba(0,0,0,0.55);
            touch-action: pinch-zoom;
            user-select: none;
            -webkit-user-drag: none;
        }

        footer {
            border-top: 1px solid var(--border);
            padding: 40px 24px 44px;
            margin-top: 48px;
        }

        .footer-inner {
            max-width: 820px;
            margin: 0 auto;
            text-align: center;
            color: var(--muted);
            font-size: 0.82rem;
            line-height: 1.7;
        }

        .footer-logo {
            display: block;
            height: 56px;
            width: auto;
            margin: 0 auto 16px;
            opacity: 0.92;
        }

        .footer-inner a {
            color: var(--accent-dk);
            text-decoration: none;
            border-bottom: 1px solid var(--border-hl);
            transition: border-color .2s, color .2s;
        }
        .footer-inner a:hover { color: var(--accent); border-color: var(--accent); }

        @media (max-width: 620px) {
            body > nav { padding: 0 12px; }
            .nav-impressum { font-size: 0.7rem; padding: 5px 10px; }
            .hero { min-height: 78vh; }
            .hero::before {
                background:
                    linear-gradient(90deg,
                        rgba(10, 63, 35, 0.75) 0%,
                        rgba(10, 63, 35, 0.70) 40%,
                        rgba(14, 116, 144, 0.45) 70%,
                        rgba(14, 116, 144, 0.20) 100%
                    ),
                    url("../images/fitness-ganzheitlich.png") right 4% center / 46% auto no-repeat;
            }
            .text-panel, .source-panel, .quiz-panel { padding: 18px; }
            .lb-scroll { padding-top: 112px; }
        }

        @media print {
            body > nav, .page-toc, .hero, .print-bar, .grafik-caption,
            .glossar-section, .quiz-section, footer, .lightbox { display: none !important; }
            body { background: #fff; }
            .section { padding: 0; max-width: 100%; }
            .grafiken-grid { display: block !important; }
            .grafik-card {
                display: flex;
                align-items: center;
                justify-content: center;
                width: 210mm;
                min-height: 297mm;
                page-break-after: always;
                break-after: page;
                border: none !important;
                box-shadow: none !important;
                border-radius: 0 !important;
                cursor: default;
                margin: 0 auto;
            }
            .grafik-card:last-child { page-break-after: avoid; break-after: avoid; }
            .grafik-card img {
                max-width: 190mm;
                max-height: 280mm;
                width: auto;
                height: auto;
                object-fit: contain;
            }
            * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
        }

/* ============================================================
   THEMEN-LAYOUT (Sidebar + Inhalt) — ergänzt 2026
   ============================================================ */

.shell {
    max-width: 1380px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr) 220px;
    gap: 8px;
    align-items: start;
}

.shell > main { min-width: 0; }

/* Left site navigation */
.theme-nav {
    position: sticky;
    top: 78px;
    align-self: start;
    margin: 24px 0 24px 16px;
    padding: 18px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 10px 30px rgba(18, 64, 35, 0.05);
    max-height: calc(100vh - 78px);
    overflow-y: auto;
    overflow-x: hidden;
}

.theme-nav-title {
    font-family: var(--fh);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
}

.theme-group {
    margin-bottom: 12px;
}
.theme-group:last-child { margin-bottom: 0; }

.theme-group-label {
    font-size: 0.67rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--muted);
    margin: 0 0 4px;
    padding: 0 4px 5px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
}

.theme-group-label .toggle-icon {
    display: inline-block;
    width: 14px;
    height: 14px;
    margin-left: 4px;
    flex-shrink: 0;
    transition: transform .2s;
}

.theme-group.collapsed .toggle-icon {
    transform: rotate(-90deg);
}

.theme-group.collapsed > ul {
    display: none;
}

.theme-nav ul { list-style: none; display: grid; gap: 2px; }

.theme-nav a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: 9px;
    text-decoration: none;
    color: var(--text);
    font-size: 0.86rem;
    font-weight: 600;
    border: 1px solid transparent;
    transition: background .18s, color .18s, border-color .18s;
}

/* Alle Menü-Unterpunkte einheitlich in der Bordeaux-Themenfarbe */
.theme-nav a { color: #7A1E30; }
.theme-nav a:hover { background: rgba(122,30,48,0.07); color: #5a1222; }

.theme-nav a.active {
    background: rgba(122,30,48,0.10);
    color: #5a1222;
    border-color: #7A1E30;
}

.theme-nav a .dot {
    width: 7px; height: 7px; border-radius: 999px;
    background: #7A1E30; flex-shrink: 0; opacity: .55;
}
.theme-nav a.active .dot { opacity: 1; }

/* Outer circle nav items (bordeaux/wine) – identisch zur Basis, beibehalten für Klarheit */
.theme-nav a.outer-link { color: #7A1E30; }
.theme-nav a.outer-link .dot { background: #7A1E30; }
.theme-nav a.outer-link:hover { background: rgba(122,30,48,0.07); color: #5a1222; }
.theme-nav a.outer-link.active { background: rgba(122,30,48,0.10); border-color: #7A1E30; color: #5a1222; }

/* Placeholder (coming soon) items */
.theme-nav a.placeholder-link { opacity: 0.42; pointer-events: none; cursor: default; }

/* External link items (open in new tab) */
.theme-nav a.external-link::after {
    content: "↗";
    margin-left: auto;
    padding-left: 6px;
    font-size: 0.8em;
    opacity: 0.6;
    flex-shrink: 0;
}

/* Yellow sub-items (outer ring of fitness circle) */
.theme-nav .theme-sub { margin: 2px 0 6px 14px; gap: 1px; }
.theme-nav .theme-sub li a {
    font-size: 0.78rem;
    font-weight: 500;
    color: #7A5A00;
    padding: 4px 10px;
    border-radius: 6px;
    border: 1px solid transparent;
    opacity: 0.55;
}
.theme-nav .theme-sub li a:hover { background: rgba(181,140,0,0.10); color: #5A4200; opacity: 0.9; }

/* Right page TOC */
.page-toc {
    position: sticky;
    top: 78px;
    align-self: start;
    margin: 24px 16px 24px 0;
    padding: 16px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 10px 30px rgba(18, 64, 35, 0.05);
    max-height: calc(100vh - 100px);
    overflow-y: auto;
}

.page-toc-title {
    font-family: var(--fh);
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin: 0 0 10px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.toc-section-label {
    font-size: 0.64rem;
    font-weight: 800;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--blue);
    margin: 12px 0 3px 10px;
    opacity: 1;
}

.page-toc ul { list-style: none; display: grid; gap: 1px; margin: 0 0 4px; }

.page-toc a {
    display: block;
    padding: 5px 10px;
    border-radius: 7px;
    text-decoration: none;
    color: var(--text);
    font-size: 0.80rem;
    font-weight: 500;
    border-left: 2px solid transparent;
    transition: background .15s, color .15s, border-color .15s;
    line-height: 1.3;
    opacity: 0.75;
}

.page-toc a:hover { background: var(--accent-lg); color: var(--accent-dk); opacity: 1; }

.page-toc a.active {
    color: var(--accent-dk);
    border-left-color: var(--accent);
    background: var(--accent-lg);
    font-weight: 600;
    opacity: 1;
}


/* Tablet: 2 columns, hide right TOC */
@media (max-width: 1200px) {
    .shell { grid-template-columns: 240px minmax(0, 1fr); }
    .page-toc { display: none; }
}

/* Mobile: 1 column, left nav toggleable */
@media (max-width: 980px) {
    .shell { grid-template-columns: 1fr; }
    .theme-nav {
        position: fixed;
        top: 62px;
        left: 0;
        width: 280px;
        height: calc(100vh - 62px);
        margin: 0;
        padding: 16px;
        overflow-y: auto;
        overflow-x: hidden;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        box-shadow: 2px 0 12px rgba(0, 0, 0, 0.2);
        z-index: 180;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        display: block !important;
    }
    .theme-nav.open {
        transform: translateX(0);
    }
    .page-toc { display: none; }
}

/* ============================================================
   IMPRESSUM / RECHTLICHES
   ============================================================ */

.legal-page {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 16px;
}

.legal-content { max-width: none; padding: 24px 0 8px; }

.legal-content .prose-card { margin-bottom: 22px; }
.legal-content h3 { margin: 18px 0 6px; }
.legal-content h3:first-child { margin-top: 0; }
.legal-content h4 { margin: 16px 0 4px; font-size: 0.98rem; color: var(--accent-dk); }
.legal-content p { color: var(--text); }

.legal-brand {
    display: flex;
    align-items: center;
    gap: 18px;
    padding-bottom: 16px;
    margin-bottom: 8px;
    border-bottom: 1px solid var(--border);
}
.legal-logo { height: 72px; width: auto; flex-shrink: 0; }
.legal-brand h3 { margin: 0; }
.legal-sub { margin: 2px 0 0; color: var(--muted); font-size: 0.9rem; }

.legal-copy {
    text-align: center;
    color: var(--muted);
    font-size: 0.84rem;
    margin-top: 8px;
}

/* ============================================================
   THEMENSEITE — Kopf, Inhalt, Tabellen, Faktenkarten
   ============================================================ */

.theme-head {
    position: relative;
    margin: 24px 0 8px;
    padding: 40px 28px;
    border-radius: 24px;
    overflow: hidden;
    color: #fff;
    background: linear-gradient(135deg, var(--accent-dk), var(--blue));
}

.theme-head::after {
    content: "";
    position: absolute; inset: 0;
    background: radial-gradient(900px 300px at 90% -20%, rgba(255,255,255,0.18), transparent 60%);
    pointer-events: none;
}

.theme-head .badge { background: rgba(255,255,255,0.18); border-color: rgba(255,255,255,0.34); }

.theme-head h1 {
    position: relative;
    font-family: var(--fh);
    font-size: clamp(1.8rem, 4vw, 2.9rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.06;
    margin-bottom: 14px;
    max-width: 760px;
}

.theme-head p {
    position: relative;
    max-width: 720px;
    color: rgba(255,255,255,0.92);
    font-size: clamp(0.98rem, 2vw, 1.1rem);
}

.theme-meta {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 18px;
    margin-top: 18px;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.85);
}
.theme-meta span strong { color: #fff; }

/* Inhaltsblöcke */
.prose-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px 28px;
    box-shadow: 0 10px 30px rgba(18, 64, 35, 0.05);
    margin-bottom: 22px;
}

/* Navigations-Links für Jump-Navigation */
.nav-anchor {
    font-size: 0.85rem;
    color: var(--muted);
    margin: 12px 0 0 0;
    padding: 6px 0;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
}
.nav-anchor a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s, text-decoration 0.2s;
}
.nav-anchor a:hover {
    color: var(--accent-dk);
    text-decoration: underline;
}

.prose-card h3 {
    font-family: var(--fh);
    font-size: 1.2rem;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.prose-card h4 {
    font-family: var(--fh);
    font-size: 1rem;
    margin: 18px 0 8px;
    color: var(--accent-dk);
}

.prose-card p { color: var(--text); margin-bottom: 12px; }
.prose-card p.muted { color: var(--muted); }

.fact-list { display: grid; gap: 12px; margin-top: 6px; }

.fact {
    border-left: 4px solid var(--accent);
    background: var(--accent-lg);
    border-radius: 0 12px 12px 0;
    padding: 12px 16px;
}
.fact strong { color: var(--text); }
.fact .ref {
    display: inline-block;
    margin-top: 4px;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent-dk);
    opacity: .8;
}

/* Faktenkarten-Raster (Kennzahlen) */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 14px;
    margin: 4px 0 6px;
}
.stat {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 16px;
    text-align: center;
}
.stat b {
    display: block;
    font-family: var(--fh);
    font-size: 1.7rem;
    color: var(--accent);
    line-height: 1.1;
}
.stat span { font-size: 0.8rem; color: var(--muted); }

/* Tabellen */
.table-wrap { overflow-x: auto; border-radius: 14px; border: 1px solid var(--border); }
table.data {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    min-width: 460px;
}
table.data caption {
    caption-side: bottom;
    padding: 10px 12px;
    font-size: 0.76rem;
    color: var(--muted);
    text-align: left;
}
table.data th, table.data td {
    padding: 11px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}
table.data thead th {
    background: var(--accent-lg);
    color: var(--accent-dk);
    font-family: var(--fh);
    font-weight: 700;
    font-size: 0.82rem;
}
table.data tbody tr:last-child td { border-bottom: none; }
table.data tbody tr:nth-child(even) td { background: rgba(47,125,50,0.035); }
table.data tr.is-target td { background: rgba(47,125,50,0.12) !important; font-weight: 600; }

/* Hinweisbox */
.callout {
    border: 1px solid var(--border-hl);
    background: linear-gradient(135deg, rgba(14,116,144,0.08), rgba(47,125,50,0.06));
    border-radius: 14px;
    padding: 16px 18px;
    margin: 8px 0 4px;
    font-size: 0.92rem;
}
.callout strong { color: var(--blue); }

@media (max-width: 620px) {
    .theme-head { padding: 28px 18px; }
    .prose-card { padding: 18px; }
}

@media print {
    .theme-nav, .theme-nav-toggle { display: none !important; }
    .shell { display: block; max-width: 100%; }
    .theme-head { color: #000; background: none; border: 1px solid #ccc; }
    .theme-head h1, .theme-head p, .theme-meta { color: #000; }
}

/* Leit-/Infografik auf Themenseiten (volle Sichtbarkeit, nicht beschnitten) */
.lead-figure {
    margin: 18px 0 22px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    cursor: zoom-in;
    box-shadow: 0 10px 30px rgba(18, 64, 35, 0.05);
    transition: transform .3s cubic-bezier(.4,0,.2,1), box-shadow .3s, border-color .2s;
}
.lead-figure:hover { transform: translateY(-4px); box-shadow: var(--glow); border-color: var(--border-hl); }
.lead-figure img { width: 100%; height: auto; display: block; background: #fff; }
.lead-figure figcaption {
    display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
    padding: 12px 18px 14px; border-top: 1px solid var(--border);
}
.lead-figure .fig-num {
    font-size: 0.68rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase;
    color: var(--accent);
}
.lead-figure .fig-label { font-family: var(--fh); font-weight: 700; color: var(--text); font-size: 0.95rem; }
.lead-figure .fig-hint { margin-left: auto; font-size: 0.76rem; color: var(--muted); }

/* Inline-Figur innerhalb eines prose-card-Abschnitts */
.section-figure { margin: 6px 0 16px; }

@media print {
    .lead-figure, .section-figure {
        page-break-inside: avoid; break-inside: avoid;
        cursor: default; box-shadow: none !important;
    }
    .lead-figure .fig-hint { display: none; }
}

/* Kleine, anklickbare Vorschau-Grafiken (ab Grafik 2) – groß nur per Lightbox */
.thumb-figure { display: inline-block; max-width: 320px; margin: 4px 0 18px; vertical-align: top; }
.thumb-figure img { height: 230px; width: auto; max-width: 100%; }
.thumb-figure figcaption { padding: 8px 12px 10px; }
.thumb-figure .fig-label { font-size: 0.84rem; }
.thumb-figure .fig-hint { margin-left: 0; flex-basis: 100%; }
@media (max-width: 480px) { .thumb-figure img { height: 185px; } }
@media print { .thumb-figure { max-width: 60%; } .thumb-figure img { height: auto; max-height: 120mm; } }

/* Zwei Vorschau-Grafiken nebeneinander */
.thumb-row { display: flex; flex-wrap: wrap; gap: 18px; align-items: flex-start; margin: 4px 0 14px; }
.thumb-row .thumb-figure { margin: 0; }

/* Teil-Trenner zur Gliederung der großen Themenseite */
.part-divider {
    margin: 48px 0 4px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border);
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 4px 14px;
}
.part-divider .part-num {
    font-family: var(--fh);
    font-weight: 700;
    font-size: 0.78rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--blue);
}
.part-divider .part-title {
    font-family: var(--fh);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text);
}
.part-divider .part-sub { font-size: 0.86rem; color: var(--muted); flex-basis: 100%; }
.part-divider:first-of-type { margin-top: 12px; }
@media print { .part-divider { break-after: avoid; page-break-after: avoid; } }

/* Wörtliche Zitate aus der Fachliteratur */
.quote-card {
    border-left: 4px solid var(--blue);
    background: rgba(14, 116, 144, 0.06);
    padding: 14px 18px;
    border-radius: 0 12px 12px 0;
    margin: 14px 0 16px;
    color: var(--text);
    font-style: italic;
}
.quote-card cite {
    display: block;
    margin-top: 8px;
    font-style: normal;
    font-size: 0.8rem;
    color: var(--muted);
}

/* Hinweis-Box für den zentralen Fachbegriff */
.term-box {
    background: linear-gradient(120deg, rgba(14,116,144,0.10), rgba(47,125,50,0.08));
    border: 1px solid var(--border-hl);
    border-radius: 14px;
    padding: 16px 18px;
    margin: 16px 0;
}
.term-box .term-word {
    font-family: var(--fh);
    font-weight: 700;
    color: var(--blue);
    font-size: 1.05rem;
    display: block;
    margin-bottom: 4px;
}
.term-box span.term-def { color: var(--text); font-size: 0.92rem; }