/* ══════════════════════════════════════════════════
           STICKY TOP-BAR
        ══════════════════════════════════════════════════ */
        .top-bar {
            position: sticky;
            top: 0;
            z-index: 300;
            width: 100%;
            background: var(--clr-bg);
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: .5rem 1.5rem;
            box-shadow: 0 2px 12px rgba(0, 0, 0, .25);
            transition: background-color .25s, border-color .25s;
        }

        .top-bar-brand {
            display: flex;
            align-items: center;
            gap: .5rem;
            font-weight: 700;
            font-size: .92rem;
            color: var(--clr-text);
            text-decoration: none;
        }

        .top-bar-brand .snake {
            font-size: 1.25rem;
        }

        .top-bar-right {
            display: flex;
            align-items: center;
            gap: .75rem;
        }

        #fortschritt-bar {
            position: sticky;
            top: 47px;
            z-index: 299;
            height: 3px;
            background: var(--border-color);
        }

        #fortschritt-fill {
            height: 100%;
            width: 0%;
            background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent2));
            transition: width .25s ease;
        }

        .theme-toggle {
            position: static !important;
            top: auto !important;
            right: auto !important;
            width: 38px;
            height: 38px;
        }

        /* ══════════════════════════════════════════════════
           LESBARKEIT – beide Themes
        ══════════════════════════════════════════════════ */
        .kapitel-body p,
        .kapitel-body li,
        .primm-box p,
        .primm-box li {
            color: var(--clr-text);
        }

        html[data-theme="light"] .kapitel-body p,
        html[data-theme="light"] .kapitel-body li,
        html[data-theme="light"] .primm-box p,
        html[data-theme="light"] .primm-box li {
            opacity: 1;
        }

        .infobox,
        .infobox strong {
            color: var(--clr-text);
        }

        .info-box {
            color: var(--clr-text);
            opacity: .9;
        }

        html[data-theme="light"] .info-box {
            opacity: 1;
        }

        td {
            color: var(--clr-text);
        }

        .quiz-option,
        .quiz-frage {
            color: var(--clr-text);
        }

        /* ══════════════════════════════════════════════════
           PRIMM-Komponenten
        ══════════════════════════════════════════════════ */
        .primm-label {
            display: inline-flex;
            align-items: center;
            gap: .3rem;
            font-size: .7rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: .08em;
            border-radius: 999px;
            padding: .2rem .65rem;
            margin-bottom: .5rem;
        }

        .primm-predict {
            background: rgba(251, 191, 36, .18);
            color: #fbbf24;
            border: 1px solid rgba(251, 191, 36, .35);
        }

        .primm-run {
            background: rgba(52, 211, 153, .15);
            color: var(--clr-accent-text);
            border: 1px solid rgba(52, 211, 153, .3);
        }

        .primm-inv {
            background: rgba(56, 189, 248, .15);
            color: var(--clr-accent2-text);
            border: 1px solid rgba(56, 189, 248, .3);
        }

        .primm-mod {
            background: rgba(167, 139, 250, .15);
            color: #c4b5fd;
            border: 1px solid rgba(167, 139, 250, .3);
        }

        .primm-make {
            background: rgba(248, 113, 113, .15);
            color: #fca5a5;
            border: 1px solid rgba(248, 113, 113, .3);
        }

        html[data-theme="light"] .primm-predict {
            background: rgba(217, 119, 6, .12);
            color: #92400e;
            border-color: rgba(217, 119, 6, .25);
        }

        html[data-theme="light"] .primm-run {
            background: rgba(16, 185, 129, .12);
            color: #065f46;
            border-color: rgba(16, 185, 129, .25);
        }

        html[data-theme="light"] .primm-inv {
            background: rgba(2, 132, 199, .12);
            color: #0c4a6e;
            border-color: rgba(2, 132, 199, .25);
        }

        html[data-theme="light"] .primm-mod {
            background: rgba(109, 40, 217, .12);
            color: #4c1d95;
            border-color: rgba(109, 40, 217, .25);
        }

        html[data-theme="light"] .primm-make {
            background: rgba(220, 38, 38, .12);
            color: #7f1d1d;
            border-color: rgba(220, 38, 38, .25);
        }

        .primm-box {
            border-radius: 10px;
            padding: 1rem 1.15rem;
            margin: .85rem 0;
            border: 1px solid var(--border-color);
        }

        .primm-box.predict {
            border-left: 4px solid #f59e0b;
            background: rgba(251, 191, 36, .05);
        }

        .primm-box.run {
            border-left: 4px solid var(--clr-accent);
            background: rgba(52, 211, 153, .04);
        }

        .primm-box.inv {
            border-left: 4px solid var(--clr-accent2);
            background: rgba(56, 189, 248, .04);
        }

        .primm-box.mod {
            border-left: 4px solid #a78bfa;
            background: rgba(167, 139, 250, .04);
        }

        .primm-box.make {
            border-left: 4px solid #f87171;
            background: rgba(248, 113, 113, .04);
        }

        html[data-theme="light"] .primm-box.predict {
            background: rgba(251, 191, 36, .06);
        }

        html[data-theme="light"] .primm-box.run {
            background: rgba(16, 185, 129, .05);
        }

        html[data-theme="light"] .primm-box.inv {
            background: rgba(2, 132, 199, .05);
        }

        html[data-theme="light"] .primm-box.mod {
            background: rgba(109, 40, 217, .05);
        }

        html[data-theme="light"] .primm-box.make {
            background: rgba(220, 38, 38, .05);
        }

        /* Vorhersage-Textarea */
        .predict-area {
            width: 100%;
            margin-top: .55rem;
            background: var(--clr-bg);
            border: 1px solid var(--border-color);
            border-radius: 7px;
            color: var(--clr-text);
            font-family: 'Fira Code', monospace;
            font-size: .85rem;
            padding: .62rem .85rem;
            resize: vertical;
            outline: none;
            transition: border-color .2s;
            min-height: 52px;
        }

        .predict-area:focus {
            border-color: var(--clr-accent);
        }

        .predict-area::placeholder {
            color: var(--clr-muted);
            font-style: italic;
        }

        .btn-predict {
            margin-top: .45rem;
            background: rgba(251, 191, 36, .15);
            color: #fbbf24;
            border: 1px solid rgba(251, 191, 36, .3);
            border-radius: 999px;
            padding: .36rem .88rem;
            font-size: .78rem;
            font-weight: 700;
            cursor: pointer;
            font-family: inherit;
            transition: var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: .32rem;
        }

        .btn-predict:hover {
            background: rgba(251, 191, 36, .28);
        }

        html[data-theme="light"] .btn-predict {
            color: #92400e;
        }

        .predict-feedback {
            display: none;
            margin-top: .5rem;
            padding: .55rem .8rem;
            border-radius: 7px;
            font-size: .85rem;
            font-weight: 600;
            line-height: 1.5;
            color: var(--clr-text);
        }

        .predict-feedback.show {
            display: block;
        }

        .predict-feedback.ok {
            background: rgba(52, 211, 153, .1);
            border-left: 3px solid var(--clr-accent);
        }

        .predict-feedback.hint {
            background: rgba(251, 191, 36, .1);
            border-left: 3px solid #f59e0b;
        }

        html[data-theme="light"] .predict-feedback.ok {
            color: #065f46;
        }

        html[data-theme="light"] .predict-feedback.hint {
            color: #92400e;
        }

        /* ══════════════════════════════════════════════════
           LAYOUT
        ══════════════════════════════════════════════════ */
        .lern-wrapper {
            display: grid;
            grid-template-columns: 220px 1fr;
            gap: 2rem;
            width: 100%;
            align-items: start;
        }

        .lern-nav {
            position: sticky;
            top: 4rem;
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 1rem;
            box-shadow: var(--shadow-sm);
        }

        .lern-nav h3 {
            font-size: .7rem;
            text-transform: uppercase;
            letter-spacing: .08em;
            font-weight: 700;
            color: var(--clr-muted);
            margin-bottom: .75rem;
            padding-left: .4rem;
        }

        .lern-nav a {
            display: flex;
            align-items: center;
            gap: .5rem;
            padding: .42rem .6rem;
            border-radius: 7px;
            color: var(--clr-muted);
            text-decoration: none;
            font-size: .86rem;
            transition: var(--transition-fast);
            font-weight: 500;
        }

        .lern-nav a:hover {
            color: var(--clr-text);
            background: var(--box-bg);
        }

        .lern-nav a.aktiv {
            background: rgba(52, 211, 153, .12);
            color: var(--clr-accent-text);
            font-weight: 700;
        }

        .lern-nav a .nav-num {
            width: 21px;
            height: 21px;
            border-radius: 50%;
            background: var(--box-bg);
            border: 1px solid var(--border-color);
            font-size: .7rem;
            text-align: center;
            line-height: 19px;
            font-weight: 700;
            flex-shrink: 0;
            transition: var(--transition-fast);
        }

        .lern-nav a.aktiv .nav-num {
            background: var(--clr-accent);
            color: var(--clr-on-accent);
            border-color: var(--clr-accent);
        }

        /* ── Kapitel ── */
        .kapitel {
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            margin-bottom: 1.5rem;
            overflow: hidden;
            transition: var(--transition-fast);
        }

        .kapitel:hover {
            box-shadow: var(--shadow);
        }

        .kapitel-header {
            display: flex;
            align-items: center;
            gap: .8rem;
            padding: .9rem 1.4rem;
            background: linear-gradient(90deg, rgba(52, 211, 153, .12) 0%, rgba(56, 189, 248, .06) 100%);
            border-bottom: 1px solid var(--border-color);
        }

        html[data-theme="light"] .kapitel-header {
            background: linear-gradient(90deg, rgba(16, 185, 129, .09) 0%, rgba(14, 165, 233, .05) 100%);
        }

        .kapitel-header .kap-num {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent2));
            color: var(--clr-on-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: .95rem;
            flex-shrink: 0;
        }

        .kapitel-header h2 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--clr-text);
        }

        .kapitel-body {
            padding: 1.35rem;
        }

        .kapitel-body p {
            color: var(--clr-text);
            margin-bottom: .8rem;
            font-size: .93rem;
            line-height: 1.7;
        }

        html[data-theme="light"] .kapitel-body p {
            opacity: 1;
        }

        .kapitel-body h3 {
            font-size: .88rem;
            font-weight: 700;
            color: var(--clr-accent2-text);
            margin: 1.3rem 0 .55rem;
            display: flex;
            align-items: center;
            gap: .4rem;
        }

        .kapitel-body h3::before {
            content: '';
            display: block;
            width: 3px;
            height: 1em;
            background: var(--clr-accent2);
            border-radius: 2px;
        }

        .kapitel-body ul,
        .kapitel-body ol {
            margin: .35rem 0 .8rem 1.35rem;
            color: var(--clr-text);
            font-size: .9rem;
        }

        html[data-theme="light"] .kapitel-body ul,
        html[data-theme="light"] .kapitel-body ol {
            opacity: 1;
        }

        .kapitel-body li {
            margin-bottom: .28rem;
            line-height: 1.6;
        }

        /* ── Inline Code ── */
        code {
            background: rgba(248, 113, 113, .13);
            color: #fca5a5;
            border-radius: 4px;
            padding: .1em .35em;
            font-family: 'Fira Code', 'Consolas', monospace;
            font-size: .87em;
            font-weight: 600;
        }

        html[data-theme="light"] code {
            background: rgba(220, 38, 38, .1);
            color: #b91c1c;
        }

        pre code {
            background: none;
            color: inherit;
            padding: 0;
            font-size: inherit;
            font-weight: normal;
        }

        /* ── Infoboxen ── */
        .infobox {
            display: flex;
            gap: .65rem;
            align-items: flex-start;
            border-radius: 8px;
            padding: .8rem 1rem;
            margin: .8rem 0;
            font-size: .88rem;
            line-height: 1.65;
        }

        .infobox-icon {
            font-size: 1.05rem;
            flex-shrink: 0;
            margin-top: .1rem;
        }

        .infobox.info {
            background: rgba(56, 189, 248, .09);
            border-left: 3px solid var(--clr-accent2);
        }

        .infobox.warn {
            background: rgba(251, 191, 36, .09);
            border-left: 3px solid var(--warning);
        }

        .infobox.tipp {
            background: rgba(52, 211, 153, .09);
            border-left: 3px solid var(--clr-accent);
        }

        .infobox.aufgabe {
            background: rgba(251, 191, 36, .07);
            border-left: 3px solid var(--warning);
        }

        .aufgabe-badge {
            display: inline-flex;
            align-items: center;
            gap: .3rem;
            background: rgba(251, 191, 36, .15);
            color: #fbbf24;
            border-radius: 999px;
            padding: .18rem .7rem;
            font-size: .72rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: .05em;
            margin-bottom: .55rem;
        }

        html[data-theme="light"] .aufgabe-badge {
            color: #92400e;
            background: rgba(217, 119, 6, .15);
        }

        /* ── Tabellen ── */
        .tabelle-wrap {
            overflow-x: auto;
            margin: .7rem 0;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            font-size: .87rem;
        }

        th {
            background: rgba(52, 211, 153, .13);
            color: var(--clr-accent-text);
            padding: .5rem .8rem;
            text-align: left;
            font-weight: 700;
            font-size: .78rem;
            text-transform: uppercase;
            letter-spacing: .04em;
        }

        html[data-theme="light"] th {
            background: rgba(16, 185, 129, .12);
            color: #065f46;
        }

        td {
            padding: .48rem .8rem;
            border-bottom: 1px solid var(--border-color);
        }

        tr:last-child td {
            border-bottom: none;
        }

        tr:hover td {
            background: var(--box-bg);
        }

        /* ── Vergleich ── */
        .vergleich {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: .8rem;
            margin: .8rem 0;
        }

        .vergleich>div {
            border-radius: 8px;
            overflow: hidden;
        }

        .vergleich-label {
            padding: .32rem .72rem;
            font-size: .72rem;
            font-weight: 700;
            letter-spacing: .05em;
            text-transform: uppercase;
        }

        .java-label {
            background: rgba(232, 113, 26, .25);
            color: #fb923c;
        }

        .py-label {
            background: rgba(55, 118, 171, .25);
            color: #7dd3fc;
        }

        html[data-theme="light"] .java-label {
            background: rgba(234, 88, 12, .15);
            color: #9a3412;
        }

        html[data-theme="light"] .py-label {
            background: rgba(2, 132, 199, .12);
            color: #0c4a6e;
        }

        .vergleich pre {
            margin: 0;
            border-radius: 0;
        }

        /* ── Code-Block ── */
        .code-block {
            margin: .8rem 0;
            border-radius: 9px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: border-color .2s;
        }

        .code-block:focus-within {
            border-color: var(--clr-accent);
        }

        .code-toolbar {
            background: #1a1e2e;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: .38rem .72rem;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }

        .code-toolbar .dots {
            display: flex;
            gap: .32rem;
        }

        .code-toolbar .dot {
            width: 11px;
            height: 11px;
            border-radius: 50%;
        }

        .dot-r {
            background: #ff5f57;
        }

        .dot-y {
            background: #febc2e;
        }

        .dot-g {
            background: #28c840;
        }

        .lang-badge {
            font-size: .7rem;
            color: var(--clr-muted);
            font-family: monospace;
            letter-spacing: .5px;
        }

        .shortcut-hint {
            font-size: .68rem;
            color: var(--clr-muted);
            font-family: monospace;
            opacity: .55;
        }

        textarea.code-input {
            width: 100%;
            background: #0d1117;
            color: #c9d1d9;
            border: none;
            outline: none;
            font-family: 'Fira Code', 'Consolas', monospace;
            font-size: .87rem;
            line-height: 1.65;
            padding: .95rem 1rem;
            resize: vertical;
            min-height: 65px;
            tab-size: 4;
        }

        .code-actions {
            background: #1a1e2e;
            padding: .42rem .72rem;
            display: flex;
            gap: .45rem;
            align-items: center;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, .06);
        }

        /* ── Buttons ── */
        .btn {
            padding: .38rem .85rem;
            border: 1px solid var(--border-color);
            border-radius: 999px;
            cursor: pointer;
            font-size: .78rem;
            font-weight: 700;
            transition: var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: .32rem;
            font-family: inherit;
            background: var(--box-bg);
            color: var(--clr-muted);
        }

        .btn:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .btn:active {
            transform: translateY(0);
        }

        .btn-run {
            background: rgba(52, 211, 153, .14);
            color: var(--clr-accent-text);
            border-color: rgba(52, 211, 153, .28);
        }

        .btn-run:hover {
            background: var(--clr-accent);
            color: var(--clr-on-accent);
            border-color: var(--clr-accent);
        }

        html[data-theme="light"] .btn-run {
            color: #065f46;
        }

        .btn-reset-code {
            background: var(--box-bg);
        }

        .btn-reset-code:hover {
            color: var(--clr-text);
            border-color: var(--clr-muted);
        }

        .btn-clear {
            background: rgba(248, 113, 113, .1);
            color: #f87171;
            border-color: rgba(248, 113, 113, .22);
        }

        .btn-clear:hover {
            background: var(--danger);
            color: #fff;
            border-color: var(--danger);
        }

        html[data-theme="light"] .btn-clear {
            color: var(--danger-text);
        }

        .btn-test {
            background: rgba(167, 139, 250, .14);
            color: #a78bfa;
            border-color: rgba(167, 139, 250, .28);
        }

        .btn-test:hover {
            background: #a78bfa;
            color: #fff;
            border-color: #a78bfa;
        }

        .btn-test:disabled {
            opacity: .4;
            cursor: not-allowed;
            transform: none;
        }

        html[data-theme="light"] .btn-test {
            color: #6d28d9;
        }

        /* ── Ausgabe ── */
        .output-area {
            background: #070d19;
            color: #c9d1d9;
            font-family: 'Fira Code', 'Consolas', monospace;
            font-size: .82rem;
            padding: .72rem 1rem;
            min-height: 34px;
            max-height: 260px;
            overflow-y: auto;
            white-space: pre-wrap;
            word-break: break-all;
            display: none;
            border-top: 1px solid rgba(255, 255, 255, .06);
        }

        .output-area.aktiv {
            display: block;
        }

        .out-error {
            color: #f87171;
        }

        .out-info {
            color: rgba(56, 189, 248, .65);
            font-style: italic;
            font-size: .76rem;
        }

        /* ── Input-Simulation ── */
        .input-simuliert {
            background: #070d19;
            border-top: 1px solid rgba(56, 189, 248, .18);
            padding: .52rem 1rem;
            display: none;
            align-items: center;
            gap: .55rem;
        }

        .input-simuliert.aktiv {
            display: flex;
        }

        .input-simuliert label {
            color: var(--clr-accent2-text);
            font-size: .8rem;
            font-family: monospace;
            white-space: nowrap;
        }

        .input-simuliert input {
            flex: 1;
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--clr-accent2);
            color: #e2e8f0;
            font-family: monospace;
            font-size: .8rem;
            outline: none;
            padding: .18rem;
        }

        .input-simuliert button {
            background: rgba(56, 189, 248, .14);
            border: 1px solid rgba(56, 189, 248, .28);
            color: var(--clr-accent2-text);
            border-radius: 999px;
            padding: .22rem .65rem;
            cursor: pointer;
            font-size: .76rem;
            font-weight: 700;
            font-family: inherit;
            transition: var(--transition-fast);
        }

        .input-simuliert button:hover {
            background: var(--clr-accent2);
            color: var(--clr-on-accent);
        }

        /* ── Quiz ── */
        .quiz-box {
            background: var(--box-bg);
            border: 1px solid var(--border-color);
            border-radius: 9px;
            padding: .95rem 1.05rem;
            margin: .85rem 0;
        }

        .quiz-frage {
            font-weight: 700;
            margin-bottom: .6rem;
            font-size: .9rem;
        }

        .quiz-optionen {
            display: flex;
            flex-direction: column;
            gap: .38rem;
        }

        .quiz-option {
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 7px;
            padding: .5rem .8rem;
            cursor: pointer;
            transition: var(--transition-fast);
            font-size: .87rem;
        }

        .quiz-option:hover {
            border-color: var(--clr-accent2);
            background: rgba(56, 189, 248, .05);
        }

        .quiz-option.richtig {
            border-color: var(--clr-accent);
            background: rgba(52, 211, 153, .12);
            color: var(--clr-accent-text);
            font-weight: 700;
        }

        .quiz-option.falsch {
            border-color: var(--danger);
            background: rgba(248, 113, 113, .1);
            color: var(--danger-text);
        }

        html[data-theme="light"] .quiz-option.richtig {
            color: #065f46;
        }

        html[data-theme="light"] .quiz-option.falsch {
            color: var(--danger-text);
        }

        .quiz-feedback {
            margin-top: .55rem;
            font-size: .86rem;
            display: none;
            padding: .48rem .72rem;
            border-radius: 7px;
            color: var(--clr-text);
        }

        .quiz-feedback.richtig {
            display: block;
            background: rgba(52, 211, 153, .1);
            border-left: 3px solid var(--clr-accent);
        }

        .quiz-feedback.falsch {
            display: block;
            background: rgba(248, 113, 113, .1);
            border-left: 3px solid var(--danger);
        }

        html[data-theme="light"] .quiz-feedback.richtig {
            color: #065f46;
        }

        html[data-theme="light"] .quiz-feedback.falsch {
            color: var(--danger-text);
        }

        /* ══════════════════════════════════════════════════
           TEST-PANEL
        ══════════════════════════════════════════════════ */
        .test-panel {
            display: none;
            border-top: 1px dashed rgba(167, 139, 250, .35);
            background: rgba(167, 139, 250, .04);
            padding: .95rem 1.15rem;
        }

        .test-panel.aktiv {
            display: block;
        }

        .test-panel-header {
            display: flex;
            align-items: center;
            gap: .55rem;
            margin-bottom: .7rem;
        }

        .test-panel-header h4 {
            font-size: .88rem;
            color: #a78bfa;
            font-weight: 700;
            flex: 1;
        }

        html[data-theme="light"] .test-panel-header h4 {
            color: #6d28d9;
        }

        .test-summary {
            font-size: .76rem;
            font-weight: 700;
            padding: .22rem .7rem;
            border-radius: 999px;
        }

        .test-summary.alle-ok {
            background: rgba(52, 211, 153, .14);
            color: var(--clr-accent-text);
            border: 1px solid rgba(52, 211, 153, .28);
        }

        .test-summary.teils-ok {
            background: rgba(251, 191, 36, .14);
            color: #f59e0b;
            border: 1px solid rgba(251, 191, 36, .28);
        }

        .test-summary.alle-fail {
            background: rgba(248, 113, 113, .14);
            color: var(--danger-text);
            border: 1px solid rgba(248, 113, 113, .28);
        }

        html[data-theme="light"] .test-summary.alle-ok {
            color: #065f46;
        }

        html[data-theme="light"] .test-summary.teils-ok {
            color: #92400e;
        }

        .test-gesamt-hinweis {
            font-size: .83rem;
            padding: .55rem .82rem;
            border-radius: 8px;
            margin-bottom: .7rem;
            font-weight: 600;
            color: var(--clr-text);
        }

        .test-gesamt-hinweis.ok {
            background: rgba(52, 211, 153, .09);
            border-left: 3px solid var(--clr-accent);
        }

        .test-gesamt-hinweis.warn {
            background: rgba(251, 191, 36, .09);
            border-left: 3px solid #f59e0b;
        }

        .test-gesamt-hinweis.fail {
            background: rgba(248, 113, 113, .09);
            border-left: 3px solid var(--danger);
        }

        .test-liste {
            display: flex;
            flex-direction: column;
            gap: .38rem;
        }

        .test-item {
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            background: var(--panel-bg);
        }

        .test-item-header {
            display: flex;
            align-items: center;
            gap: .52rem;
            padding: .48rem .72rem;
            cursor: pointer;
            user-select: none;
            transition: background .15s;
        }

        .test-item-header:hover {
            background: var(--box-bg);
        }

        .test-status-icon {
            font-size: .95rem;
            flex-shrink: 0;
        }

        .test-titel {
            font-size: .82rem;
            font-weight: 600;
            flex: 1;
            color: var(--clr-text);
        }

        .test-chevron {
            font-size: .68rem;
            color: var(--clr-muted);
            transition: transform .2s;
        }

        .test-item.open .test-chevron {
            transform: rotate(90deg);
        }

        .test-item-body {
            display: none;
            padding: .52rem .82rem .72rem;
            border-top: 1px solid var(--border-color);
            font-size: .82rem;
        }

        .test-item.open .test-item-body {
            display: block;
        }

        .test-row {
            display: grid;
            grid-template-columns: 115px 1fr;
            gap: .18rem .48rem;
            margin-bottom: .28rem;
            align-items: start;
        }

        .test-label {
            color: var(--clr-muted);
            font-size: .76rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: .04em;
            padding-top: .18rem;
        }

        .test-val {
            font-family: 'Fira Code', monospace;
            font-size: .79rem;
            background: var(--box-bg);
            border-radius: 4px;
            padding: .13rem .38rem;
            word-break: break-all;
            color: var(--clr-text);
        }

        .test-val.ok {
            background: rgba(52, 211, 153, .09);
            color: var(--clr-accent-text);
        }

        .test-val.fail {
            background: rgba(248, 113, 113, .09);
            color: var(--danger-text);
        }

        html[data-theme="light"] .test-val.ok {
            color: #065f46;
        }

        html[data-theme="light"] .test-val.fail {
            color: var(--danger-text);
        }

        .test-hinweis {
            margin-top: .52rem;
            padding: .52rem .72rem;
            border-radius: 7px;
            font-size: .82rem;
            line-height: 1.55;
            color: var(--clr-text);
        }

        .test-hinweis.ok {
            background: rgba(52, 211, 153, .07);
            border-left: 3px solid var(--clr-accent);
        }

        .test-hinweis.fail {
            background: rgba(251, 191, 36, .07);
            border-left: 3px solid #f59e0b;
        }

        .test-hinweis.err {
            background: rgba(248, 113, 113, .07);
            border-left: 3px solid var(--danger);
        }

        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

        .spinner {
            width: 13px;
            height: 13px;
            border: 2px solid rgba(167, 139, 250, .25);
            border-top-color: #a78bfa;
            border-radius: 50%;
            animation: spin .62s linear infinite;
            display: inline-block;
        }

        /* ── Feature-Grid Light-Mode ── */
        html[data-theme="light"] .feature h3 {
            color: var(--clr-text);
        }

        html[data-theme="light"] .feature p {
            color: var(--clr-muted);
        }

        /* ── Responsive ── */
        @media (max-width: 860px) {
            .lern-wrapper {
                grid-template-columns: 1fr;
            }

            .lern-nav {
                position: static;
            }

            .vergleich {
                grid-template-columns: 1fr;
            }

            .test-row {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 600px) {
            .top-bar-brand span:not(.snake) {
                display: none;
            }
        }

        ::-webkit-scrollbar {
            width: 5px;
            height: 5px;
        }

        ::-webkit-scrollbar-track {
            background: var(--clr-bg);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 3px;
        }

        /* ── Barrierefreiheit: Kontraste (WCAG AA) ──
           Code-Editor (Kopf- und Aktionsleiste) ist in beiden Themes dunkel →
           feste helle Schriftfarben statt Theme-Farben */
        .code-toolbar .lang-badge,
        .code-toolbar .shortcut-hint {
            color: #94a3b8;
            opacity: 1;
        }

        .code-actions .btn.btn-run {
            color: #34d399;
        }

        .code-actions .btn.btn-reset-code {
            color: #94a3b8;
        }

        .code-actions .btn.btn-clear {
            color: #fca5a5;
        }

        .code-actions .btn.btn-test {
            color: #c4b5fd;
        }

        /* Kommentarfarbe aus atom-one-dark (#5c6370) ist zu kontrastarm */
        .hljs-comment,
        .hljs-quote {
            color: #9ca3af;
        }

        /* Codebeispiele bleiben im hellen Theme dunkel hinterlegt – die
           Inline-code-Regel darf pre code nicht rosa einfärben */
        html[data-theme="light"] pre code.hljs {
            background: #282c34;
            color: #abb2bf;
        }