:root {
    --primary: #008000;
    --primary-dark: #4ade80;
    --slate-800: #1e293b;
    --slate-500: #64748b;
    --slate-300: #cbd5e1;
    --slate-100: #f1f5f9;
}

body { 
    margin: 0; 
    font-family: 'Reddit Sans', system-ui, -apple-system, sans-serif;
    background-color: white;
    overflow-x: hidden;
}

button,
select,
input,
textarea {
    font-family: 'Reddit Sans', system-ui, -apple-system, sans-serif;
}

.home-view {
    min-height: 100vh;
    padding: 48px 28px 56px;
    background:
        radial-gradient(circle at top left, rgba(34, 197, 94, 0.12), transparent 30%),
        linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    color: var(--slate-800);
}

.home-hero {
    max-width: 780px;
    margin: 0 auto 32px;
}

.home-eyebrow {
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 10px;
}

.home-title {
    margin: 0;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    line-height: 0.95;
}

.home-copy {
    max-width: 680px;
    font-size: 1.15rem;
    line-height: 1.5;
    color: var(--slate-500);
    margin: 18px 0 0;
}

.mode-grid {
    max-width: 1180px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.mode-card {
    appearance: none;
    text-align: left;
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 28px;
    padding: 26px;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
    display: flex;
    flex-direction: column;
    gap: 12px;
    color: inherit;
    text-decoration: none;
}

.mode-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 26px 70px rgba(15, 23, 42, 0.12);
}

.mode-card strong {
    font-size: 1.55rem;
}

.mode-card span:last-child {
    color: var(--slate-500);
    line-height: 1.45;
}

.mode-card-kicker {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 800;
    color: var(--primary);
}

.mode-card--worksheet {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(240, 253, 244, 0.96) 100%);
}

.mode-card--presentation {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(239, 246, 255, 0.96) 100%);
}

.mode-card--import {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 247, 237, 0.96) 100%);
}

.mode-card--training {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(248, 250, 252, 0.96) 100%);
}

.mode-card--quiz {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(236, 253, 245, 0.96) 100%);
}

.mode-card--builder {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(239, 246, 255, 0.96) 100%);
}

.toolbar-main-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.view-switch-select {
    min-width: 150px;
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid var(--slate-300);
    background: #ffffff;
    color: var(--slate-800);
    font-size: 0.95rem;
    font-weight: 700;
}

.settings-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.28);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.18s ease;
    z-index: 70;
}

.settings-drawer-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
}

.settings-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: min(640px, 96vw);
    height: 100vh;
    background: #ffffff;
    border-right: 1px solid rgba(148, 163, 184, 0.28);
    box-shadow: 24px 0 60px rgba(15, 23, 42, 0.16);
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    z-index: 80;
    display: flex;
    flex-direction: column;
    padding: 18px 18px 20px;
    box-sizing: border-box;
    overflow-y: auto;
}

.settings-drawer.is-open {
    transform: translateX(0);
}

.settings-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 14px;
}

.settings-drawer-heading {
    min-width: 0;
}

.settings-drawer-title {
    margin: 0;
    font-size: 1.35rem;
    line-height: 1.1;
    color: var(--slate-800);
}

.settings-drawer-section {
    margin-bottom: 14px;
}

.settings-drawer-section-title {
    font-size: 1rem;
    margin-left: 15px;
    font-weight: 800;
    color: var(--slate-800);
}

.settings-checkbox {
    width: auto;
    cursor: pointer;
    accent-color: var(--blue-500);
    align-self: center;
    margin: 0;
}

.settings-checkbox-group {
    gap: 8px !important;
    justify-content: center;
}

.settings-checkbox-option {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    line-height: 1.2;
}

.settings-selection-bar {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}

/* In training mode keep selection bar elements side-by-side */
.settings-drawer.mode-training .settings-selection-bar {
    flex-wrap: nowrap;
    gap: 10px;
    align-items: center;
}

.settings-drawer.mode-quiz .settings-selection-bar {
    align-items: center;
}

.settings-drawer.mode-training .settings-selection-bar > * {
    flex: 0 1 auto;
}

@media (max-width: 520px) {
    /* On very small screens allow wrapping again to avoid overflow */
    .settings-drawer.mode-training .settings-selection-bar {
        flex-wrap: wrap;
        gap: 10px;
    }
}

/* Compact controls in training mode: reduce padding and font-size */
.settings-drawer.mode-training .settings-selection-bar .btn {
    padding: 8px 10px;
    font-size: 0.9rem;
    font-weight: 500;
}

.settings-drawer.mode-training .settings-selection-bar .settings-compact-btn {
    padding: 7px;
}

.settings-drawer.mode-training .settings-selection-bar input,
.settings-drawer.mode-training .settings-selection-bar select,
.settings-drawer.mode-training .settings-selection-bar .settings-topbar-label {
    font-size: 0.92rem;
}

/* Ensure task card math and text wrap to avoid overflow */
.training-task-card .training-task-content,
.training-task-card .math-q,
.training-task-card .math-a,
.training-task-card mjx-container[jax="CHTML"] {
    max-width: 100%;
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: normal;
    hyphens: auto;
    box-sizing: border-box;
}

mjx-container[jax="CHTML"],
mjx-container[jax="CHTML"][display="true"] {
    margin: 0 !important;
    padding: 0 !important;
    box-sizing: border-box;
}

.training-task-content mjx-container[jax="CHTML"][display="true"] {
    max-width: 100% !important;
    width: 100% !important;
}

@media (max-width: 520px) {
    .settings-drawer.mode-training .settings-selection-bar .btn {
        padding: 7px;
        font-size: 0.90rem;
        font-weight: 500;
    }
}

.settings-quick-generate {
    margin-left: auto;
}

.settings-grade-input {
    width: 50px;
    padding: 4px;
}

.settings-count-input {
    width: 50px;
    padding: 4px;
}

.settings-arrangement-input {
    width: 110px;
    min-width: 110px;
    padding: 4px;
    font-size: 0.9rem;
    text-align: left;
}

.settings-drawer-close,
.settings-compact-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 9px;
    border-radius: 10px;
    font-size: 0.78rem;
    line-height: 1;
}

.settings-type-grid {
    margin-bottom: 0;
    padding: 14px;
    column-gap: 12px;
    row-gap: 10px;
}

.settings-type-grid .type-option {
    align-items: center;
}

.settings-type-grid .type-label {
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    line-height: 1.25;
}


.builder-selection-bar {
    margin-bottom: 10px;
}

.builder-draft-card {
    margin-bottom: 12px;
    padding: 12px;
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, 0.35);
    background: #f8fafc;
}

.builder-draft-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px;
    color: var(--slate-500);
    margin-bottom: 10px;
}

.builder-draft-header strong {
    color: var(--slate-800);
}

.builder-draft-math {
    background: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: 10px;
    padding: 14px;
    margin-bottom: 10px;
    font-size: 130%;
}

.builder-draft-math mjx-container[jax="CHTML"][display="true"] {
    margin: 0 !important;
    text-align: left !important;
}

.builder-draft-math.is-solution {
    color: var(--primary);
}

.builder-draft-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.builder-sidebar {
    position: sticky;
    top: 20px;
    max-height: calc(100vh - 40px);
    min-width: 500px;
    overflow-y: auto;
    padding: 16px;
    border-radius: 24px;
    border: 1px solid rgba(203, 213, 225, 0.74);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.08);
    box-sizing: border-box;
}

.builder-sidebar-top {
    margin-bottom: 16px;
}

.builder-sidebar-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: flex-end;
    margin-bottom: 14px;
}

.builder-inline-control,
.settings-topbar-label.builder-inline-control {
    display: inline-flex !important;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: 12px;
    background: #f8fafc;
    padding: 8px 10px;
}

.builder-inline-control span {
    white-space: nowrap;
}

.builder-draft-card--large {
    margin-bottom: 0;
}

.builder-main {
    min-width: 0;
}

.builder-toolbar {
    margin-bottom: 16px;
    position: sticky;
    top: 0;
    z-index: 3;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

.worksheet-builder-view {
    min-height: 90vh;
    padding: 20px;
    background:
        radial-gradient(circle at 12% 8%, rgba(34, 197, 94, 0.1), transparent 36%),
        linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    color: var(--slate-800);
    display: grid;
	grid-template-columns: var(--builder-sidebar-width, minmax(500px, 2fr)) 16px minmax(0, 3fr);
}

.builder-sidebar-resizer {
    width: 16px;
    min-height: 100%;
    align-self: stretch;
    cursor: ew-resize;
    background: rgba(148, 163, 184, 0.12);
    border-radius: 9999px;
    transition: background-color 0.2s ease, background 0.2s ease;
    touch-action: none;
    user-select: none;
    z-index: 2;
}

.builder-sidebar-resizer:hover,
.builder-sidebar-resizer.is-resizing {
    background: rgba(15, 23, 42, 0.18);
}

.builder-sidebar-resizer:active {
    background: rgba(15, 23, 42, 0.15);
}

.builder-toolbar-title {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.builder-replace-hint {
    color: #b45309;
    font-size: 0.86rem;
    font-weight: 700;
}

.builder-task-sheet {
    max-width: 1400px;
    margin: 0 auto;
    padding: 22px;
    border-radius: 24px;
    border: 1px solid rgba(203, 213, 225, 0.74);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.08);
}

.builder-task-list {
    display: grid;
    gap: 12px;
}

.builder-task-item {
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 14px;
    background: #ffffff;
    padding: 12px;
    cursor: grab;
}

.builder-task-item.is-replace-target {
    border-color: #f59e0b;
    box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.2);
}

.builder-task-item.is-dragging {
    opacity: 0.55;
}

.builder-task-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 8px;
    color: var(--slate-500);
}

.builder-task-number {
    min-width: 32px;
    text-align: right;
    font-weight: 700;
}

.builder-task-meta strong {
    color: var(--slate-800);
}

.builder-drag-hint {
    margin-left: auto;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--slate-500);
}

.builder-task-math {
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: 10px;
    padding: 14px;
    margin-bottom: 10px;
    overflow-wrap: anywhere;
}

.builder-task-math mjx-container[jax="CHTML"][display="true"] {
    margin: 0 !important;
    text-align: left !important;
}

.builder-task-math.is-solution {
    color: var(--primary);
}

.builder-task-solution {
    border: 1px solid rgba(var(--primary-rgb, 59, 130, 246), 0.3);
    border-radius: 10px;
    padding: 10px 14px;
    margin-bottom: 10px;
    overflow-wrap: anywhere;
    color: var(--primary);
    background: rgba(59, 130, 246, 0.04);
    font-size: 0.95rem;
}

.builder-task-solution mjx-container[jax="CHTML"][display="true"] {
    margin: 0 !important;
    text-align: left !important;
}

.builder-task-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.builder-type-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
    padding: 10px;
}

.builder-stats-panel {
    margin-top: 20px;
    padding: 12px 12px 10px;
    border-radius: 16px;
    background: rgba(248, 250, 252, 0.95);
    border: 1px solid rgba(148, 163, 184, 0.25);
}

.builder-stats-title {
    margin: 0 0 10px;
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--slate-700);
}

.builder-stat-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.builder-stat-table td {
    padding: 6px 8px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.16);
}

.builder-stat-table tr:last-child td {
    border-bottom: none;
}

.builder-stat-count {
    width: 3rem;
    font-weight: 700;
    color: var(--slate-900);
    text-align: right;
    padding-right: 12px;
}

.builder-stat-name {
    color: var(--slate-700);
}

.builder-type-btn {
    border: 1px solid rgba(148, 163, 184, 0.45);
    border-radius: 10px;
    background: #ffffff;
    color: var(--slate-800);
    font-size: 0.8rem;
    font-weight: 500;
    line-height: 1;
    padding: 8px;
    cursor: pointer;
    text-align: left;
    transition: transform 0.14s ease, border-color 0.14s ease, box-shadow 0.14s ease;
}

.builder-type-btn:hover {
    transform: translateY(-1px);
    border-color: var(--primary);
    box-shadow: 0 6px 16px rgba(15, 23, 42, 0.08);
}

.empty-state {
    max-width: 780px;
    margin: 60px auto 0;
    padding: 32px;
    border-radius: 28px;
    border: 1px solid rgba(148, 163, 184, 0.24);
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 22px 60px rgba(15, 23, 42, 0.08);
    text-align: center;
}

.empty-state h2 {
    margin: 0 0 10px;
    font-size: 2rem;
}

.empty-state p {
    margin: 0;
    color: var(--slate-500);
    line-height: 1.5;
    font-size: 1.05rem;
}

.builder-edit-label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: var(--slate-500);
    font-size: 0.82rem;
    font-weight: 700;
}

.builder-edit-textarea {
    width: 100%;
    min-height: 150px;
    resize: vertical;
    box-sizing: border-box;
    border: 1px solid rgba(148, 163, 184, 0.45);
    border-radius: 12px;
    padding: 12px;
    background: #ffffff;
    color: var(--slate-800);
    line-height: 1.4;
}

.builder-inline-edit-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 12px;
}

.builder-empty-state {
    margin-top: 0;
}

.empty-state-actions {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.settings-input {
    border: 1px solid var(--slate-300);
    border-radius: 7px;
    padding: 4px;
    text-align: left;
    line-height: 1.2;
    box-sizing: border-box;
}

.type-grid {
    display: grid;
	grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    background: var(--slate-100);
    padding: 10px;
    border-radius: 20px;
    margin-bottom: 20px;
}

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

    .settings-type-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .builder-type-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .builder-sidebar {
        position: static;
        max-height: none;
        min-width: 0;
    }

    .builder-sidebar-resizer {
        display: none;
    }

    .worksheet-builder-view {
        grid-template-columns: 1fr;
        padding: 14px;
    }

    .builder-inline-edit-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .settings-type-grid {
        grid-template-columns: 1fr;
    }

    .builder-type-grid {
        grid-template-columns: 1fr;
    }

    .builder-draft-math,
    .builder-task-math {
        min-height: 0;
        padding: 12px;
    }

    .builder-drag-hint {
        margin-left: 0;
        width: 100%;
    }
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    cursor: pointer;
}

.type-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.type-label {
    flex: 1;
}

.weight-input {
    width: 25px;
    padding: 2px;
    border: 0.5px solid var(--slate-300);
    border-radius: 5px;
    font-size: 0.8rem;
    text-align: center;
    background: white;
}

/* --- PRÄSENTATION --- */
.presentation-view {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 20px;
    background:
        radial-gradient(circle at top right, rgba(148, 163, 184, 0.12), transparent 28%),
        linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    color: var(--slate-800);
    transition: background-color 0.25s ease, color 0.25s ease, background 0.25s ease;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--slate-100);
    flex-wrap: wrap;
    gap: 10px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    font-weight: bold;
}

@media (max-width: 900px) {
    .settings-quick-generate {
        margin-left: 0;
    }
}

.btn--back { background: var(--slate-100); color: var(--slate-800); }
.btn--export { background: var(--slate-300); color: var(--slate-800); }
.btn--toggle { background: var(--slate-800); color: white; }
.btn--primary { background: var(--primary); color: white; }
.btn--theme { background: #0f172a; color: white; }

.top-bar-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.settings-topbar-settings {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.settings-topbar-label {
    display: flex;
    flex-direction: column;
    gap: 3px;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--slate-500);
    margin: 0;
}

.toolbar-main-controls,
.top-bar-actions,
.settings-topbar-settings {
    align-items: center;
}

.settings-topbar-input {
    width: 60px;
    text-align: center;
    padding: 4px;
    font-size: 1rem;
}

.settings-topbar-select {
    width: 100px;
    padding: 4px;
    font-size: 0.95rem;
    text-align: left;
}

.task-grid {
    flex-grow: 1;
    display: flex;
    gap: 60px;
    border-top: 2px solid var(--slate-100);
    margin-top: 10px;
}

.column-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.task-row {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--slate-100);
    min-height: 60px; 
    height: auto; 
    padding: 20px 0;
}

.task-num {
    font-size: 3rem;
    font-weight: 900;
    color: var(--slate-500);
    width: 70px;
    text-align: center;
    flex-shrink: 0;
}

.content {
    flex-grow: 1;
    display: flex;
	flex-direction: column; 
    justify-content: center;
    align-items: center;
	text-align: center; 
    padding-left: 20px;
}

.presentation-view mjx-container[jax="CHTML"][display="true"],
.training-view mjx-container[jax="CHTML"][display="true"] {
    margin: 0 !important;
    padding: 0 !important;
    font-size: 100% !important;
    text-align: center !important;
}

mjx-mtext {
    font-family: "Reddit Sans", system-ui, -apple-system, sans-serif !important;
}

.math-q { font-size: 2.2rem; font-weight: 400; line-height: 1.25; }
.math-a { font-size: 2.2rem; font-weight: 400; color: var(--primary); line-height: 1.25; }

.presentation-view .math-q .two-column-task,
.presentation-view .math-a .two-column-task {
    display: block;
    width: 100%;
    border: none;
    border-collapse: collapse;
}

.presentation-view .math-q .two-column-task tr,
.presentation-view .math-a .two-column-task tr {
    display: block;
}

.presentation-view .math-q .two-column-task td,
.presentation-view .math-a .two-column-task td {
    display: block;
    width: auto;
    border: none;
    padding: 0;
    margin-bottom: 1rem;
    text-align: left;
}

.presentation-view .math-q .two-column-task td:last-child,
.presentation-view .math-a .two-column-task td:last-child {
    margin-bottom: 0;
}

.op-table-wrap {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
}

.op-table-title {
    font-size: clamp(1rem, 2.1vw, 1.35rem);
    font-weight: 800;
    color: var(--slate-500);
    margin-bottom: 10px;
}

.op-table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    overflow: hidden;
}

.op-table th,
.op-table td {
    border: 1px solid rgba(148, 163, 184, 0.35);
    padding: 10px 8px;
    text-align: center;
    vertical-align: middle;
    font-size: 12pt;
    line-height: 1.25;
}

.op-table tr:first-child th,
.op-table tr:first-child td {
    border-top: none;
}

.op-table th:first-child,
.op-table td:first-child {
    border-left: none;
}

.op-table th:last-child,
.op-table td:last-child {
    border-right: none;
}

.op-table tr:last-child th,
.op-table tr:last-child td {
    border-bottom: none;
}

.op-table th {
    background: rgba(241, 245, 249, 0.95);
    font-weight: 400;
}

.op-table .op-corner {
    background: rgba(226, 232, 240, 0.9);
}

.op-blank {
    display: inline-block;
    height: 1.05em;
    border-bottom: 2px solid #64748b;
    vertical-align: middle;
}

.op-table th:first-child,
.op-table td:first-child {
    width: 50px;
    min-width: 50px;
    max-width: 50px;
}

.op-table--solution td {
    text-align: center;
}

.op-table--terms td,
.op-table--terms th {
    padding: 12px 10px;
}

/* Tabellen-Lösungen in der Präsentation an .math-a angleichen */
.presentation-view .math-a .op-table-wrap,
.worksheet-sheet--solutions .math-a .op-table-wrap {
    max-width: 1000px;
}

.presentation-view .math-a .op-table th,
.presentation-view .math-a .op-table td,
.worksheet-sheet--solutions .math-a .op-table th,
.worksheet-sheet--solutions .math-a .op-table td {
    font-size: 35px;
    line-height: 1.2;
    padding: 0.46em 0.4em;
}

.presentation-view .math-a .op-table th:first-child,
.presentation-view .math-a .op-table td:first-child,
.worksheet-sheet--solutions .math-a .op-table th:first-child,
.worksheet-sheet--solutions .math-a .op-table td:first-child {
    width: 3.1em;
    min-width: 3.1em;
    max-width: 3.4em;
}

.presentation-view .math-a .op-table mjx-container,
.worksheet-sheet--solutions .math-a .op-table mjx-container {
    font-size: 105% !important;
}

/* Gleiche Darstellung auch für die Aufgaben (math-q) in der Präsentation */
.presentation-view .math-q .op-table-wrap,
.worksheet-sheet--solutions .math-q .op-table-wrap {
    max-width: 1000px;
}

.presentation-view .math-q .op-table th,
.presentation-view .math-q .op-table td,
.worksheet-sheet--solutions .math-q .op-table th,
.worksheet-sheet--solutions .math-q .op-table td {
    font-size: 35px;
    line-height: 1.2;
    padding: 0.46em 0.4em;
}

.presentation-view .math-q .op-table th:first-child,
.presentation-view .math-q .op-table td:first-child,
.worksheet-sheet--solutions .math-q .op-table th:first-child,
.worksheet-sheet--solutions .math-q .op-table td:first-child {
    width: 3.1em;
    min-width: 3.1em;
    max-width: 3.4em;
}

.presentation-view .math-q .op-table mjx-container,
.worksheet-sheet--solutions .math-q .op-table mjx-container {
    font-size: 105% !important;
}

.presentation-view.dark-mode {
    background:
        radial-gradient(circle at top right, rgba(74, 222, 128, 0.14), transparent 32%),
        linear-gradient(180deg, #0f172a 0%, #020617 100%);
    color: #e2e8f0;
}

.presentation-view.dark-mode .settings-drawer-section-title,
.presentation-view.dark-mode .settings-topbar-label {
    color: #cbd5e1;
}

.presentation-view.dark-mode .top-bar {
    border-bottom-color: rgba(148, 163, 184, 0.25);
}

.presentation-view.dark-mode .view-switch-select {
    background: rgba(30, 41, 59, 0.72);
    border-color: #334155;
    color: #cbd5e1;
}

.presentation-view.dark-mode .task-grid {
    border-top-color: rgba(148, 163, 184, 0.25);
}

.presentation-view.dark-mode .task-row {
    border-bottom-color: rgba(148, 163, 184, 0.18);
}

.presentation-view.dark-mode .task-num {
    color: #475569;
}

.presentation-view.dark-mode .math-q {
    color: #f8fafc;
}

.presentation-view.dark-mode .math-q .op-table,
.presentation-view.dark-mode .math-a .op-table {
    background: rgba(15, 23, 42, 0.9);
}

.presentation-view.dark-mode .math-q .op-table th,
.presentation-view.dark-mode .math-q .op-table td,
.presentation-view.dark-mode .math-a .op-table th,
.presentation-view.dark-mode .math-a .op-table td {
    border-color: rgba(148, 163, 184, 0.18);
}

.presentation-view.dark-mode .math-q .op-table th,
.presentation-view.dark-mode .math-q .op-table td {
    color: #e2e8f0;
}

.presentation-view.dark-mode .math-a .op-table th,
.presentation-view.dark-mode .math-a .op-table td {
    color: var(--primary-dark);
}

.presentation-view.dark-mode .math-q .op-table th,
.presentation-view.dark-mode .math-a .op-table th {
    background: rgba(30, 41, 59, 0.95);
}

.presentation-view.dark-mode .math-q .op-table .op-corner,
.presentation-view.dark-mode .math-a .op-table .op-corner {
    background: rgba(51, 65, 85, 0.9);
}

.presentation-view.dark-mode .math-a {
    color: var(--primary-dark);
}

.presentation-view.dark-mode .btn--back {
    background: #1e293b;
    color: #e2e8f0;
}

.presentation-view.dark-mode .btn--export {
    background: #334155;
    color: #e2e8f0;
}

.presentation-view.dark-mode .btn--theme {
    background: #e2e8f0;
    color: #0f172a;
}

.presentation-view.dark-mode .btn--toggle {
    background: #f8fafc;
    color: #0f172a;
}

.presentation-view.dark-mode .btn--primary {
    background: var(--primary-dark);
    color: #052e16;
}

/* --- TRAINING --- */
.training-view {
    min-height: 100vh;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    background:
        radial-gradient(circle at 15% 10%, rgba(148, 163, 184, 0.2), transparent 35%),
        linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    color: var(--slate-800);
}

/* Slightly smaller math text in training mode (base) */
.training-view .math-q,
.training-view .math-a {
    font-size: 2.15rem;
    line-height: 1.18;
}

.training-top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--slate-100);
}

.training-top-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.training-progress {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--slate-500);
}

.training-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.training-task-card {
    min-height: 62vh;
    width: 100%;
    max-width: 900px;
    border-radius: 28px;
    border: 1px solid rgba(148, 163, 184, 0.35);
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 18px 48px rgba(15, 23, 42, 0.08);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 32px;
    text-align: center;
}

.training-buttons {
    width: 100%;
    max-width: 900px;
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    gap: 14px;
}

.training-task-content {
    width: 100%;
    max-width: 100%;
    overflow-wrap: anywhere;
}

.training-arrow {
    padding: 14px 20px;
    border-radius: 12px;
    border: none;
    font-size: 1.08rem;
    font-weight: 700;
    cursor: pointer;
    color: white;
    background: #0f172a;
    transition: transform 0.15s ease, opacity 0.15s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    flex: 1 1 0;
    justify-content: center;
    min-width: 0;
}

.training-arrow-icon {
    font-size: 1.35em;
    line-height: 1;
}

.training-solution-btn {
    flex: 0 0 auto;
    min-width: 220px;
    font-size: 1.05rem;
    font-weight: 800;
    border-radius: 12px;
    padding: 14px 18px;
}

.training-arrow:hover:not(:disabled) {
    transform: scale(1.06);
}

.training-arrow:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

@media (max-width: 900px) {
    .training-view {
        padding: 14px;
        gap: 14px;
    }

    .training-arrow-text {
        display: none !important;
    }

    .training-top-bar {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .training-view .toolbar-main-controls {
        width: 100%;
    }

    .training-progress {
        font-size: 0.98rem;
        line-height: 1.35;
    }

    .training-top-actions {
        width: 100%;
    }

    .training-top-actions .btn {
        flex: 1 1 220px;
        min-width: 0;
        font-size: 1rem;
        padding: 12px 14px;
    }

    .training-main {
        gap: 14px;
    }

    .training-buttons {
        width: 100%;
        gap: 10px;
    }

    .training-task-card {
        min-height: 56vh;
        padding: 26px 16px;
    }

    .training-view .math-q,
    .training-view .math-a {
        font-size: 1.8rem;
        line-height: 1.22;
    }

    .training-view .training-task-content mjx-container[jax="CHTML"][display="true"] {
        font-size: 105% !important;
    }

    .op-table-wrap {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .op-table {
        min-width: 560px;
    }
}

@media (max-width: 560px) {
    .training-view {
        padding: 10px;
        gap: 12px;
    }

    .training-progress {
        font-size: 1.0rem;
    }

    .training-top-actions .btn {
        font-size: 1.0rem;
        padding: 13px 14px;
    }

    .training-arrow {
        padding: 14px 10px;
        font-size: 1rem;
        min-height: 54px;
    }

    .training-solution-btn {
        min-width: 0;
        flex: 1.2 1 0;
        padding: 14px 12px;
        font-size: 1rem;
        line-height: 1.2;
    }

    .training-task-card {
        min-height: 54vh;
        padding: 16px 12px;
        border-radius: 18px;
    }

    .training-task-content {
        font-size: 1rem;
    }

    .training-view .math-q,
    .training-view .math-a {
        font-size: 1.6rem;
        line-height: 1.3;
    }

    .training-view .training-task-content mjx-container[jax="CHTML"][display="true"] {
        font-size: 105% !important;
    }

    .op-table {
        min-width: 500px;
    }
}

/* --- ARBEITSBLATT --- */
.worksheet-view {
    min-height: 90vh;
    padding: 20px;
    background:
        linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    color: var(--slate-800);
    --worksheet-task-font-size: 11pt;
    --worksheet-task-line-height: 1.35;
    --worksheet-task-font-size-print: 11pt;
    --worksheet-task-line-height-print: 1.35;
}


.worksheet-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.worksheet-toolbar-title {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    color: var(--slate-500);
}

.worksheet-gt-input {
    width: 45px;
    text-align: center;
    font-size: 1rem;
    padding: 4px;
}

.worksheet-toolbar-title strong {
    color: var(--slate-800);
    font-size: 12pt;
}

.worksheet-toolbar-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.worksheet-sheet {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px 28px;
    background: white;
    border: 1px solid rgba(203, 213, 225, 0.7);
    border-radius: 24px;
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.08);
}

.worksheet-sheet--solutions {
    max-width: none;
    margin: 0;
    width: 100%;
    padding: 8px 0 0;
    background: transparent;
    border: none;
    border-radius: 0;
    box-shadow: none;
}

.worksheet-sheet-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 27mm;
    padding-bottom: 0;
    margin-bottom: 0;
    border: none;
    font-size: 11pt;
    font-weight: 400;
    color: var(--slate-800);
}

.worksheet-header-copy {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 400;
    margin: 0 0 3mm 0;
    padding: 0 0mm 3mm 0mm;
    box-sizing: border-box;
    border-bottom: 0.3mm solid var(--slate-500);
}

.worksheet-header-gt {
    margin-left: 10px;
    text-align: right;
}

.worksheet-header-copy + .worksheet-header-copy {
    padding-left: 0;
}

.worksheet-list {
    display: flex;
    flex-direction: column;
}

.worksheet-list--columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 27mm;
}

.worksheet-column {
    display: flex;
    flex-direction: column;
}

.worksheet-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 27mm;
    padding: 10px 0;
    page-break-inside: avoid;
}

.worksheet-copy {
    display: grid;
    grid-template-columns: 25px 1fr;
    gap: 12px;
    align-items: start;
    padding: 10px 0;
}

.worksheet-copy--empty .worksheet-num,
.worksheet-copy--empty .worksheet-content {
    visibility: hidden;
}

/* .worksheet-row > .worksheet-copy + .worksheet-copy {
    padding-left: 22px;
} */

/* .worksheet-column .worksheet-copy {
    padding: 10px 0;
} */

.worksheet-num {
        display: flex;
        align-items: flex-start;
        justify-content: right;
        align-self: stretch;
        font-size: 9pt;
        padding-top: 5px;
        line-height: 1;
        text-align: center;
        color: #64748b;
}

.worksheet-content {
    min-width: 0;
    font-size: var(--worksheet-task-font-size);
    line-height: var(--worksheet-task-line-height);
}

.worksheet-math,
.worksheet-solution {
    font-size: inherit;
    line-height: inherit;
    word-wrap: break-word;
}

.worksheet-solution {
    color: var(--primary);
}

.worksheet-content .math-q,
.worksheet-content .math-a {
    font-size: inherit;
    line-height: inherit;
}

.worksheet-content mjx-container {
    font-size: 12pt !important;
    line-height: inherit !important;
}

.worksheet-content mjx-container mjx-math {
    font-size: 12pt !important;
}

.worksheet-content mjx-mtext {
    font-size: var(--worksheet-task-font-size) !important;
}

.worksheet-content mjx-container[jax="CHTML"][display="true"] {
    margin: 0 !important;
    padding: 0 !important;
    text-align: left !important;
}

/* Prevent line breaks inside MathJax expressions to avoid splits like `3<br>+4=` */
mjx-container[jax="CHTML"] mjx-math,
mjx-container[jax="CHTML"] mjx-mrow,
mjx-container[jax="CHTML"] mjx-mi,
mjx-container[jax="CHTML"] mjx-mo,
mjx-container[jax="CHTML"] mjx-mn,
mjx-container[jax="CHTML"] mjx-mtext {
    white-space: nowrap !important;
    overflow-wrap: normal !important;
    word-break: normal !important;
    display: inline-block !important;
}

/* For display-mode MathJax containers allow the outer container to span full width but keep inner math unbroken */
mjx-container[jax="CHTML"][display="true"] {
    width: 100% !important;
}


.worksheet-content p,
.worksheet-content ul,
.worksheet-content ol {
    margin: 0 !important;
    padding: 0 !important;
}

.karo-placeholder {
    --karo-rows: 4;
    --karo-cols: 10;
    --karo-size: 0.5cm;
    margin-top: 0.2cm;
    display: inline-table;
    border-collapse: collapse;
    border-spacing: 0;
    /* outer border: same thickness as inner cell borders */
    border: 0.2mm solid #64748b;
}
.karo-placeholder table {
    border-collapse: collapse;
    border-spacing: 0;
}
.karo-placeholder td {
    width: var(--karo-size);
    height: var(--karo-size);
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    border: 0.1mm solid rgb(150, 150, 150);
}

.worksheet-solutions-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding-bottom: 12px;
    margin-bottom: 10px;
    border-bottom: 2px solid var(--slate-100);
    font-size: 13pt;
    font-weight: 800;
    color: var(--slate-500);
}

.worksheet-solution-board {
    margin-top: 8px;
    border-top: 2px solid var(--slate-100);
    padding-top: 8px;
    padding-left: 6px;
    padding-right: 6px;
    gap: 42px;
}

.two-column-task {
    width: 100%;
    border-collapse: collapse;
    border: none;
}

.two-column-task-cell {
    width: 50%;
    text-align: left;
    vertical-align: top;
    padding: 0;
    border: none;
}

#worksheetPresentationTasks .two-column-task,
#worksheetPresentationSolutions .two-column-task {
    display: block;
    width: 100%;
    border: none;
}

#worksheetPresentationTasks .two-column-task tr,
#worksheetPresentationSolutions .two-column-task tr {
    display: block;
}

#worksheetPresentationTasks .two-column-task td,
#worksheetPresentationSolutions .two-column-task td {
    display: block;
    width: auto;
    border: none;
    padding: 0;
    margin-bottom: 1rem;
    text-align: left;
}

#worksheetPresentationTasks .two-column-task td:last-child,
#worksheetPresentationSolutions .two-column-task td:last-child {
    margin-bottom: 0;
}

.worksheet-view .worksheet-solution-board .two-column-task {
    display: block;
    width: 100%;
    border: none;
    border-collapse: collapse;
}

.worksheet-view .worksheet-solution-board .two-column-task tr {
    display: block;
}

.worksheet-view .worksheet-solution-board .two-column-task td {
    display: block;
    width: auto;
    border: none;
    padding: 0;
    margin-bottom: 1rem;
    text-align: left;
}

.worksheet-view .worksheet-solution-board .two-column-task td:last-child {
    margin-bottom: 0;
}

.worksheet-view .worksheet-solution-board .two-column-task td {
    display: block;
    width: auto;
    border: none;
    padding: 0;
    margin-bottom: 1rem;
    text-align: left;
}

.worksheet-view .worksheet-solution-board .two-column-task td:last-child {
    margin-bottom: 0;
}

.worksheet-view .worksheet-solution-board .task-row {
    min-height: 86px;
    padding: 16px 0;
}

.worksheet-view .worksheet-solution-board .task-num {
    font-size: 28pt;
    width: 72px;
}

.worksheet-view .worksheet-solution-board .content {
    padding-left: 16px;
}

.worksheet-view .worksheet-solution-board .math-q,
.worksheet-view .worksheet-solution-board .math-a {
    font-size: 2.2rem;
    font-weight: 400;
    line-height: 1.25;
}

.worksheet-view .worksheet-solution-board mjx-container[jax="CHTML"][display="true"] {
    margin: 0 !important;
    padding: 0 !important;
    text-align: center !important;
}

/* --- QUIZ GENERIEREN --- */
.quiz-view {
    min-height: 100vh;
    padding: 20px;
    background:
        radial-gradient(circle at 15% 8%, rgba(34, 197, 94, 0.12), transparent 34%),
        linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    color: var(--slate-800);
}

.quiz-top-bar {
    margin-bottom: 14px;
}

.quiz-sheet {
    max-width: 1480px;
    margin: 0 auto;
    padding: 22px 24px;
    border-radius: 24px;
    border: 1px solid rgba(203, 213, 225, 0.74);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.08);
}

.quiz-sheet-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    border-bottom: 2px solid var(--slate-100);
    margin-bottom: 12px;
    padding-bottom: 12px;
    font-size: 1rem;
    font-weight: 800;
    color: var(--slate-500);
}

.quiz-columns {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.quiz-column {
    display: flex;
    flex-direction: column;
}

.quiz-row {
    display: grid;
    grid-template-columns: 34px 1fr;
    gap: 12px;
    padding: 1mm 0;
    border-bottom: 1px solid var(--slate-100);
}

.quiz-row.quiz-title-row {
    border-bottom-width: 2px;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.quiz-row.quiz-title-row .quiz-num {
    visibility: hidden;
}

.quiz-row.quiz-title-row .quiz-content {
    font-weight: 600;
    color: var(--slate-700);
}

.quiz-num {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    font-size: 0.9rem;
    color: var(--slate-500);
    text-align: right;
}

.quiz-content {
    min-width: 0;
    font-size: 1rem;
    line-height: 1.35;
    margin: 1mm;
}

.quiz-math,
.quiz-solution {
    font-size: inherit;
    line-height: inherit;
    word-wrap: break-word;
}

.quiz-solution {
    color: var(--primary);
}

.quiz-content .math-q,
.quiz-content .math-a {
    font-size: inherit;
    line-height: inherit;
}

.quiz-content mjx-container[jax="CHTML"][display="true"] {
    margin: 0 !important;
    padding: 0 !important;
    text-align: left !important;
}

@media (max-width: 960px) {
    .toolbar-main-controls {
        width: 100%;
    }

    .view-switch-select {
        flex: 1 1 auto;
        min-width: 0;
    }

    .settings-topbar-settings {
        width: 100%;
    }

    .settings-topbar-label {
        flex: 1 1 180px;
    }

    .settings-topbar-input,
    .settings-topbar-select {
        width: 100%;
        min-width: 0;
    }

    .worksheet-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .worksheet-list--columns {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .worksheet-copy + .worksheet-copy {
        padding-left: 0;
        padding-top: 12px;
    }

    .worksheet-solution-board {
        gap: 16px;
    }

    .worksheet-view .worksheet-solution-board .task-row {
        min-height: 70px;
        padding: 12px 0;
    }

    .worksheet-view .worksheet-solution-board .task-num {
        font-size: 23pt;
        width: 62px;
    }

    .worksheet-view .worksheet-solution-board .math-q,
    .worksheet-view .worksheet-solution-board .math-a {
        font-size: 2.2rem;
        line-height: 1.25;
    }

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

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

@media (max-width: 640px) {
    .quiz-view {
        padding: 14px;
    }

    .quiz-sheet {
        padding: 16px;
        border-radius: 18px;
    }

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


@media print {

    @page {
        size: A4 landscape;
        margin: 7mm 12mm 7mm 16mm;
    }

    html,
    body {
        width: auto;
        max-width: 100%;
        margin: 0;
        padding: 0;
        background: white;
        overflow: visible;
        font-weight: 350;
    }

    mjx-container,
    mjx-mtext {
        font-weight: 350;
    }

    #app {
        display: block;
    }

    .home-view,
    .presentation-view,
    .settings-drawer,
    .settings-drawer-overlay,
    .no-print {
        display: none !important;
    }

    .worksheet-view {
        padding: 0;
        background: white;
    }

    .worksheet-sheet {
        width: 269mm;
        /* margin: 7mm 12mm 7mm 16mm; */
        padding: 0;
        box-sizing: border-box;
        border: none;
        border-radius: 0;
        box-shadow: none;
    }

    .worksheet-sheet-header {
        padding-top: 5mm;
        grid-template-columns: 121mm 121mm;
        gap: 27mm;
        width: 269mm;
        border: none;
        font-size: 9pt;
    }

    /* .worksheet-row {
        width: 297mm;
        grid-template-columns: 148.5mm 148.5mm;
        gap: 0;
        padding: 2.4mm 0;
        box-sizing: border-box;
        break-inside: avoid;
        page-break-inside: avoid;
    } */

    .worksheet-copy {
        grid-template-columns: 5mm 1fr;
        gap: 3mm;
        box-sizing: border-box;
        align-items: start;
        padding: 2mm 0mm 2mm 0mm;
        break-inside: avoid;
        page-break-inside: avoid;
    }

    .worksheet-list--columns {
        grid-template-columns: 121mm 121mm;
        gap: 27mm;
    }

    /* .worksheet-column {
        width: 134mm;
    } */

    /* .worksheet-column .worksheet-copy {
        width: 135mm;
        grid-template-columns: 6mm 1fr;
        gap: 3mm;
        padding: 2mm 0mm 2mm 0.5mm;
        box-sizing: border-box;
        align-items: start;
        break-inside: avoid;
        page-break-inside: avoid;
    } */

    /*.worksheet-column + .worksheet-column .worksheet-copy {
         padding-right: 5mm;   rechte Spalte 
    }*/

    /* .worksheet-row > .worksheet-copy + .worksheet-copy {
        margin-left: 0;
        padding-left: 8mm;
    } */

    .worksheet-num {
        display: flex;
        align-items: flex-start;
        justify-content: right;
        align-self: stretch;
        font-size: 9pt;
        padding-top: 5px;
        line-height: 1;
        text-align: center;
        color: #64748b;
    }

    .worksheet-content {
        min-width: 0;
        font-size: var(--worksheet-task-font-size-print);
        line-height: var(--worksheet-task-line-height-print);
    }

    .worksheet-content mjx-container {
        font-size: 12pt !important;
    }

    .worksheet-content mjx-container mjx-math {
        font-size: 12pt !important;
    }

    .worksheet-content mjx-mtext {
        font-size: var(--worksheet-task-font-size-print) !important;
    }

    .worksheet-view mjx-container[jax="CHTML"][display="true"] {
        margin: 0 !important;
        padding: 0 !important;
    }

    .quiz-view {
        padding: 0;
        background: white;
        font-size: 10pt;
    }

    .quiz-sheet {
        width: 287mm;
        max-width: none;
        box-shadow: none;
        border: none;
        border-radius: 0;
        padding: 0;
    }

    .quiz-columns {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 8mm;
    }

    .quiz-num {
        font-size: 9pt;
    }

    .quiz-row {
        padding: 1mm 0;
        gap: 6px;
        border: none;
    }

    .quiz-content {
        font-size: 10pt !important;
        line-height: 1.25;
    }

    .quiz-content mjx-container[jax="CHTML"][display="true"] {
        font-size: 10pt !important;
        line-height: 1.25 !important;
    }

    /* Druck-optimierte Tabellen für A5-Doppelseite: passen in Spaltenbreite
       Ursache: Bildschirm-Responsive Regeln setzten min-width/auto, deshalb
       mussten wir hier фиксieren: volle Spaltenbreite, table-layout fixed
       und kleinere Schrift/Paddings. */
    .op-table-wrap {
        width: 100%;
        max-width: 100mm; /* eine A5-Spalte in A4-Landschaft */
        margin: 0;
        box-sizing: border-box;
    }

    .op-table {
        width: 100% !important;
        min-width: 0 !important;
        table-layout: fixed; /* verhindert horizontales Aufweiten */
        border: none;
        background: transparent;
        border-collapse: collapse;
    }

    .op-table th {
        font-size: 10pt;
        font-weight: 400;
        padding: 1.2mm 1.0mm;
        border: 0.2mm solid #5c6775;
        word-break: break-word;
    }

    .op-table td {
        font-size: 10pt;
        font-weight: 350;
        padding: 1.2mm 1.0mm;
        border: 0.2mm solid #5c6775;
        word-break: break-word;
    }

    .op-table tr:first-child th,
    .op-table tr:first-child td {
        border-top: none;
    }

    .op-table th:first-child,
    .op-table td:first-child {
        border-left: none;
    }

    .op-table th:last-child,
    .op-table td:last-child {
        border-right: none;
    }

    .op-table tr:last-child th,
    .op-table tr:last-child td {
        border-bottom: none;
    }

    /* Erste Spalte schmal, ausreichend für Headerwert */
    .op-table th:first-child,
    .op-table td:first-child {
        width: 8mm;
        min-width: 8mm;
        max-width: 10mm;
    }
}