.commulingo-page .container {
    max-width: 980px;
}

.commulingo-shell {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.commulingo-hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    border-left: 4px solid var(--accent);
}

.commulingo-kicker {
    color: var(--accent);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0;
    margin-bottom: 8px;
}

.commulingo-hero h1 {
    color: var(--text-primary);
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.commulingo-hero p:last-child {
    color: var(--text-secondary);
    line-height: 1.55;
}

.commulingo-total {
    flex: 0 0 auto;
    width: 112px;
    height: 112px;
    border: 1px solid var(--border);
    background: var(--bg-surface);
    display: grid;
    place-items: center;
    text-align: center;
}

.commulingo-total span {
    display: block;
    color: var(--accent-red);
    font-size: 1.55rem;
    font-weight: 800;
}

.commulingo-total small {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.commulingo-status {
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text-muted);
    font-size: 0.88rem;
    padding: 10px 14px;
}

.commulingo-lessons {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.commu-volume-section {
    border: 1px solid var(--border);
    background: var(--card-bg);
}

.commu-volume-header {
    border-left: 4px solid var(--accent);
}

.commu-volume-toggle {
    align-items: center;
    background: transparent;
    border: 0;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    font: inherit;
    justify-content: space-between;
    padding: 14px 16px;
    text-align: left;
    width: 100%;
}

.commu-volume-toggle:hover {
    background: var(--bg-surface);
}

.commu-volume-toggle strong,
.commu-volume-toggle small {
    display: block;
}

.commu-volume-title {
    display: grid;
    gap: 4px;
    min-width: 0;
    width: min(640px, calc(100% - 52px));
}

.commu-volume-toggle strong {
    font-size: 1.15rem;
}

.commu-volume-toggle small {
    color: var(--text-muted);
    font-size: 0.84rem;
}

.commu-volume-progress {
    display: grid;
    gap: 5px;
    margin-top: 4px;
    max-width: 360px;
}

.commu-volume-progress-label {
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 700;
    line-height: 1.25;
}

.commu-volume-progress-percent {
    color: var(--accent-red);
}

.commu-volume-progress-track {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    display: block;
    height: 7px;
    overflow: hidden;
    width: 100%;
}

.commu-volume-progress-track > span {
    background: var(--accent-red);
    display: block;
    height: 100%;
    transition: width 0.2s ease;
}

.commu-volume-toggle-icon {
    align-items: center;
    border: 1px solid var(--border);
    color: var(--accent);
    display: inline-flex;
    flex: 0 0 auto;
    font-size: 1.25rem;
    font-weight: 800;
    height: 34px;
    justify-content: center;
    width: 34px;
}

.commu-volume-section.is-expanded .commu-volume-header {
    border-bottom: 1px solid var(--border);
}

.commu-volume-body {
    display: flex;
    flex-direction: column;
}

.commu-part-section + .commu-part-section {
    border-top: 1px solid var(--border);
}

.commu-part-header {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    padding: 12px 16px;
}

.commu-part-header h3 {
    color: var(--text-primary);
    font-size: 1rem;
    margin: 0 0 4px;
}

.commu-part-header p {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin: 0;
}

.commu-volume-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    padding: 12px;
}

.commu-chapter-card {
    border: 1px solid var(--border);
    background: var(--bg-surface);
    color: var(--text-primary);
    padding: 14px;
    min-height: 250px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.commu-lesson-title-row {
    align-items: flex-start;
    display: flex;
    gap: 10px;
    justify-content: space-between;
}

.commu-chapter-card h2 {
    font-size: 1.05rem;
    line-height: 1.35;
    margin: 0;
}

.commu-level-badge {
    border: 1px solid var(--clr-cream-light);
    color: var(--clr-cream-light);
    flex: 0 0 auto;
    font-size: 0.75rem;
    font-weight: 800;
    line-height: 1;
    padding: 5px 7px;
}

.commu-level-badge.is-basic {
    background: var(--accent-green);
}

.commu-level-badge.is-advanced {
    background: var(--accent-red);
}

.commu-lesson-summary {
    color: var(--text-secondary);
    display: -webkit-box;
    font-size: 0.88rem;
    line-height: 1.42;
    margin: 0;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.commu-lesson-focus {
    border-left: 3px solid var(--accent);
    color: var(--text-secondary);
    display: -webkit-box;
    font-size: 0.84rem;
    line-height: 1.42;
    margin: 0;
    overflow: hidden;
    padding-left: 9px;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.commu-chapter-actions {
    display: grid;
    gap: 8px;
    margin-top: auto;
}

.commu-lesson-action {
    align-items: center;
    border: 1px solid var(--border);
    background: var(--bg-base);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    gap: 10px;
    min-height: 74px;
    padding: 10px;
    text-align: left;
    width: 100%;
}

.commu-lesson-action:hover:not(:disabled) {
    background: var(--bg-surface-hover);
    border-color: var(--accent);
}

.commu-lesson-action.is-completed {
    background: color-mix(in srgb, var(--accent-green) 18%, var(--bg-surface));
    border-color: color-mix(in srgb, var(--accent-green) 58%, var(--border));
}

.commu-lesson-action.is-completed:hover:not(:disabled) {
    background: color-mix(in srgb, var(--accent-green) 25%, var(--bg-surface));
}

.commu-lesson-action.is-completed .commu-progress-track {
    border-color: color-mix(in srgb, var(--accent-green) 65%, var(--border));
}

.commu-lesson-action:disabled {
    cursor: not-allowed;
    opacity: 0.58;
}

.commu-lesson-action.is-basic {
    box-shadow: inset 4px 0 0 var(--accent-green);
}

.commu-lesson-action.is-advanced {
    box-shadow: inset 4px 0 0 var(--accent-red);
}

.commu-lesson-action-body {
    display: grid;
    gap: 6px;
    min-width: 0;
    width: 100%;
}

.commu-lesson-action-top {
    align-items: center;
    display: flex;
    gap: 8px;
    justify-content: space-between;
}

.commu-lesson-action-top strong {
    font-size: 0.88rem;
    line-height: 1.2;
}

.commu-lesson-action-top span,
.commu-lesson-action .commu-lesson-meta {
    color: var(--text-muted);
    font-size: 0.78rem;
}

.commu-lesson-meta {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.commu-progress-track,
.commu-meter-track {
    height: 8px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    overflow: hidden;
}

.commu-progress-track > span,
#commuMeterFill {
    display: block;
    height: 100%;
    width: 0;
    background: var(--accent);
    transition: width 0.2s ease;
}

.commu-quiz {
    border: 1px solid var(--border);
    background: var(--card-bg);
}

.commu-quiz-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    border-bottom: 1px solid var(--border);
    padding: 12px;
}

.commu-quiz-meter {
    flex: 1;
    max-width: 420px;
    color: var(--text-muted);
    font-size: 0.86rem;
}

.commu-question {
    padding: 24px;
}

.commu-lesson-title {
    align-items: center;
    color: var(--accent);
    display: flex;
    flex-wrap: wrap;
    font-weight: 700;
    gap: 8px;
    margin-bottom: 10px;
}

.commu-intro {
    background: var(--bg-surface);
    border-left: 4px solid var(--accent);
    margin-bottom: 18px;
    padding: 16px;
}

.commu-intro h2 {
    font-size: 1.18rem;
    margin: 0 0 10px;
}

.commu-intro-summary,
.commu-intro-focus {
    color: var(--text-secondary);
    line-height: 1.55;
    margin: 0 0 10px;
}

.commu-intro-focus {
    color: var(--text-primary);
}

.commu-diagram {
    align-items: stretch;
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 14px;
}

.commu-diagram-node {
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text-primary);
    display: grid;
    gap: 6px;
    line-height: 1.42;
    min-height: 104px;
    padding: 12px;
}

.commu-diagram-node strong {
    color: var(--accent);
    font-size: 0.88rem;
    line-height: 1.25;
}

.commu-diagram-node small {
    color: var(--text-secondary);
    font-size: 0.82rem;
    line-height: 1.42;
}

.commu-brief {
    display: grid;
    gap: 12px;
    grid-column: 1 / -1;
}

.commu-brief-section {
    border-top: 1px solid var(--border);
    display: grid;
    gap: 8px;
    padding-top: 12px;
}

.commu-brief-section:first-child {
    border-top: 0;
    padding-top: 0;
}

.commu-brief-section h3 {
    color: var(--accent);
    font-size: 0.94rem;
    margin: 0;
}

.commu-brief-section p,
.commu-brief-section ul {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.55;
    margin: 0;
}

.commu-brief-section ul {
    display: grid;
    gap: 6px;
    padding-left: 18px;
}

.commu-question-focus {
    background: var(--bg-surface);
    border-left: 4px solid var(--accent);
    color: var(--text-secondary);
    line-height: 1.5;
    margin: -2px 0 16px;
    padding: 10px 12px;
}

.commu-question h2 {
    font-size: 1.35rem;
    line-height: 1.35;
    margin-bottom: 18px;
}

.commu-choices {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 16px;
}

.commu-choice {
    border: 1px solid var(--border);
    background: var(--bg-surface);
    color: var(--text-primary);
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 0%, transparent);
    font: inherit;
    min-height: 56px;
    padding: 12px;
    text-align: left;
    cursor: pointer;
    transform: translateY(0);
    transition: background-color 140ms ease, border-color 140ms ease, box-shadow 140ms ease, color 140ms ease, transform 140ms ease;
}

.commu-choice:hover:not(:disabled) {
    background: color-mix(in srgb, var(--accent) 14%, var(--bg-surface));
    border-color: var(--accent);
    box-shadow: 0 8px 0 color-mix(in srgb, var(--accent) 18%, transparent);
    transform: translateY(-2px);
}

.commu-choice:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.commu-choice.is-correct {
    animation: commu-correct-pop 520ms ease;
    background: color-mix(in srgb, var(--accent-green) 28%, var(--bg-surface));
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-green) 28%, transparent), 0 10px 0 color-mix(in srgb, var(--accent-green) 18%, transparent);
    color: var(--text-primary);
}

.commu-choice.is-wrong {
    animation: commu-wrong-shake 360ms ease;
    background: color-mix(in srgb, var(--accent-red) 24%, var(--bg-surface));
    border-color: var(--accent-red);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-red) 24%, transparent);
    color: var(--text-primary);
}

.commu-feedback {
    border-left: 4px solid var(--accent);
    background: color-mix(in srgb, var(--accent-green) 14%, var(--bg-surface));
    color: var(--text-secondary);
    display: grid;
    gap: 6px;
    line-height: 1.5;
    margin-bottom: 16px;
    padding: 12px 14px;
    animation: commu-feedback-rise 260ms ease;
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent-green) 18%, transparent);
}

.commu-feedback-marker {
    color: var(--text-primary);
    font-size: 0.88rem;
    font-weight: 700;
}

.commu-choice-feedback {
    background: color-mix(in srgb, var(--accent) 8%, var(--bg-surface));
    border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--border));
    color: var(--text-primary);
    display: block;
    font-size: 0.92rem;
    line-height: 1.5;
    padding: 10px 12px;
}

.commu-streak-badge {
    align-self: start;
    animation: commu-streak-pop 420ms ease;
    background: color-mix(in srgb, var(--accent-green) 26%, var(--bg-surface));
    border: 1px solid color-mix(in srgb, var(--accent-green) 58%, var(--border));
    color: var(--text-primary);
    display: inline-flex;
    font-size: 0.82rem;
    font-weight: 800;
    line-height: 1;
    padding: 8px 10px;
}

.commu-feedback.is-perfect {
    animation: commu-perfect-rise 640ms ease;
    background: color-mix(in srgb, var(--accent-green) 20%, var(--bg-surface));
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent-green) 28%, transparent), 0 0 0 3px color-mix(in srgb, var(--accent-green) 12%, transparent);
}

.commu-quiz.has-answer-reward .commu-meter-track {
    animation: commu-meter-glow 520ms ease;
}

.commu-quiz.has-perfect-reward .commu-question {
    animation: commu-perfect-shell 620ms ease;
}

.commu-feedback.is-wrong {
    background: color-mix(in srgb, var(--accent-red) 12%, var(--bg-surface));
    border-left-color: var(--accent-red);
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent-red) 18%, transparent);
}

@keyframes commu-correct-pop {
    0% {
        transform: scale(1);
    }
    45% {
        transform: scale(1.025);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes commu-wrong-shake {
    0%, 100% {
        transform: translateX(0);
    }
    24% {
        transform: translateX(-5px);
    }
    48% {
        transform: translateX(5px);
    }
    72% {
        transform: translateX(-3px);
    }
}

@keyframes commu-feedback-rise {
    0% {
        opacity: 0;
        transform: translateY(6px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes commu-streak-pop {
    0% {
        opacity: 0;
        transform: translateY(4px) scale(0.96);
    }
    55% {
        transform: translateY(0) scale(1.04);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes commu-meter-glow {
    0%, 100% {
        box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent-green) 0%, transparent);
    }
    45% {
        box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent-green) 22%, transparent);
    }
}

@keyframes commu-perfect-rise {
    0% {
        opacity: 0;
        transform: translateY(8px) scale(0.98);
    }
    60% {
        transform: translateY(0) scale(1.01);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes commu-perfect-shell {
    0%, 100% {
        box-shadow: none;
    }
    45% {
        box-shadow: inset 0 0 0 3px color-mix(in srgb, var(--accent-green) 16%, transparent);
    }
}

@media (prefers-reduced-motion: reduce) {
    .commu-choice,
    .commu-feedback,
    .commu-streak-badge,
    .commu-quiz.has-answer-reward .commu-meter-track,
    .commu-quiz.has-perfect-reward .commu-question {
        animation: none;
        transition: none;
    }
}

.is-hidden {
    display: none !important;
}

@media (max-width: 700px) {
    .commulingo-hero,
    .commu-quiz-top {
        align-items: stretch;
        flex-direction: column;
    }

    .commulingo-total {
        width: 100%;
        height: auto;
        min-height: 78px;
    }

    .commu-volume-title {
        width: min(100%, calc(100% - 48px));
    }

    .commu-volume-progress {
        max-width: 100%;
    }

    .commu-volume-grid,
    .commu-choices {
        grid-template-columns: 1fr;
    }

    .commu-diagram {
        grid-template-columns: 1fr;
    }


    .commu-question {
        padding: 18px;
    }
}