/* Dutch Vocabulary Practice page styles */

.vocabulary-practice-page {
    padding: 80px 0 120px;
}

.vocabulary-practice-page .container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 40px;
}

.vocabulary-practice-page .content-wrapper {
    max-width: 820px;
    margin: 0 auto;
}

.vocabulary-practice-page section {
    margin-bottom: 64px;
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
}

.vocabulary-practice-page section:first-child {
    border-top: none;
    padding-top: 0;
}

.vocabulary-practice-page h1 {
    font-size: clamp(2.4rem, 4vw, 3rem);
    margin-top: 0;
    margin-bottom: 24px;
    line-height: 1.2;
    font-weight: 700;
}

.vocabulary-practice-page h2 {
    font-size: 1.75rem;
    margin-top: 0;
    margin-bottom: 20px;
    line-height: 1.3;
    font-weight: 600;
    padding-top: 8px;
    position: relative;
}

.vocabulary-practice-page h2::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
}

/* Modes section */
.modes-section {
    margin-bottom: 64px;
}

.modes-section h2 {
    margin-bottom: 28px;
}

.modes-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.mode-card {
    display: block;
    padding: 24px 28px;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.mode-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    border-color: var(--color-primary);
}

.mode-card:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.mode-card-title {
    margin: 0 0 8px;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-dark);
    line-height: 1.3;
}

.mode-card-desc {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-muted);
}

@media (min-width: 768px) {
    .modes-grid {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 24px;
    }

    .mode-card {
        flex: 1 1 calc(50% - 12px);
        min-width: 0;
    }
}

@media (min-width: 1024px) {
    .modes-grid {
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 24px;
    }

    .mode-card {
        flex: 1 1 0;
        min-width: 0;
    }
}

/* How it works section */
.vocabulary-practice-page .how-it-works-section {
    margin-bottom: 64px;
}

.vocabulary-practice-page h3 {
    font-size: 1.2rem;
    margin-top: 24px;
    margin-bottom: 12px;
    font-weight: 600;
}

.how-it-works-intro {
    margin-bottom: 28px;
}

.how-it-works-steps {
    list-style: none;
    margin: 0 0 32px;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.how-it-works-step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 20px 24px;
    background: var(--color-light);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    margin-bottom: 0;
}

.how-it-works-step .step-num {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: #ffffff;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 50%;
}

.how-it-works-step .step-content {
    flex: 1;
    min-width: 0;
}

.how-it-works-step .step-title {
    display: block;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 6px;
}

.how-it-works-step .step-desc {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-muted);
}

.how-it-works-extras {
    padding: 0px 28px;
    background: var(--color-light);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    margin-bottom: 28px;
}

.how-it-works-extras-title {
    margin: 0 0 14px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-dark);
}

.how-it-works-extras-list {
    margin: 0;
    padding-left: 22px;
    color: var(--color-muted);
    line-height: 1.7;
}

.how-it-works-extras-list li {
    margin-bottom: 6px;
}

.how-it-works-cta-wrap {
    margin: 0;
    text-align: center;
}

.how-it-works-cta-wrap .cta-button {
    text-decoration: none;
}

/* FAQ section — accordion */
.faq-section {
    margin-bottom: 64px;
}

.levels-intro {
    margin-bottom: 24px;
}

.levels-accordion {
    list-style: none;
    margin: 0 0 24px;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
}

.levels-accordion .level-item {
    margin-bottom: 0;
}

.levels-accordion .level-item + .level-item .level-summary {
    border-top: 1px solid var(--color-border);
}

.levels-accordion .level-summary {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 18px 24px;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-dark);
    background: var(--color-light);
    border: none;
    cursor: pointer;
    text-align: left;
    user-select: none;
    transition: background-color 0.2s ease, box-shadow 0.2s ease;
    font-family: inherit;
}

.levels-accordion .level-summary:hover {
    background: rgba(41, 110, 179, 0.06);
}

.levels-accordion .level-summary:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.levels-accordion .level-summary-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: #ffffff;
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1;
    border-radius: 10px;
    transition: transform 0.25s ease, background-color 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 2px 8px rgba(41, 110, 179, 0.25);
}

.levels-accordion .level-summary:hover .level-summary-icon {
    box-shadow: 0 4px 12px rgba(41, 110, 179, 0.3);
}

.levels-accordion .level-summary-icon::before {
    content: '+';
}

.levels-accordion .level-item.is-open .level-summary-icon::before {
    content: '−';
}

.levels-accordion .level-question {
    font-weight: 600;
    color: var(--color-dark);
}

.levels-accordion .level-content {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.35s ease-out;
    overflow: hidden;
}

.levels-accordion .level-item.is-open .level-content {
    grid-template-rows: 1fr;
}

.levels-accordion .level-content-inner {
    overflow: hidden;
    min-height: 0;
}

.levels-accordion .level-content-pad {
    padding: 16px 24px 20px 56px;
    background: var(--color-light);
    border-top: 1px solid var(--color-border);
}

.levels-accordion .level-content-pad p {
    margin: 0;
    line-height: 1.7;
    color: var(--color-muted);
}

@media (max-width: 640px) {
    .levels-accordion .level-summary {
        padding: 16px 18px;
        font-size: 1rem;
    }

    .levels-accordion .level-content-pad {
        padding: 14px 18px 18px 44px;
    }
}

/* Benefits section */
.benefits-section {
    margin-bottom: 64px;
}

.benefits-section h2 {
    margin-bottom: 28px;
}

.benefits-intro {
    margin-bottom: 28px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.benefit-card {
    padding: 20px 22px;
    background: var(--color-light);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    margin: 0;
}

.benefit-card-title {
    margin: 0 0 8px;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-dark);
    line-height: 1.3;
}

.benefit-card-desc {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-muted);
}

@media (min-width: 768px) {
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 22px;
    }
}

.vocabulary-practice-page p {
    margin: 20px 0;
    line-height: 1.7;
}

@media (max-width: 640px) {
    .vocabulary-practice-page {
        padding: 40px 0 60px;
    }

    .vocabulary-practice-page .container {
        padding: 0 20px;
    }

    .vocabulary-practice-page h2::before {
        width: 30px;
        height: 2px;
    }
}

/* Interactive demo section */
.interactive-demo-section {
    margin: 48px 0;
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
}

.interactive-demo-section-heading {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.interactive-demo-section .demo-badge {
    margin-bottom: 5px;
    display: inline-block;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-primary);
    background: rgba(41, 110, 179, 0.12);
    border-radius: 6px;
}

.interactive-demo-intro {
    margin-bottom: 0;
}

.interactive-demo-panel {
    background: var(--color-light);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    margin-top: 24px;
}

.demo-cta-wrap {
    margin-top: 32px;
    margin-bottom: 0;
    text-align: center;
}

.demo-cta-wrap .demo-cta {
    text-decoration: none;
}

/* App-style panel (dark blue theme like in the app) */
.interactive-demo-panel.app-style {
    --app-bg: #1e3a5f;
    --app-text: #ffffff;
    --app-text-muted: rgba(255, 255, 255, 0.7);
    --app-button-bg: #ffffff;
    --app-button-text: #0f172a;
    --app-button-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);

    background: var(--app-bg);
    border: none;
    border-radius: 20px;
    padding: 32px 40px 40px;
    color: var(--app-text);
}

/* Mode tabs (segmented control) */
.demo-mode-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 32px;
    padding: 4px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.demo-mode-tab {
    padding: 10px 18px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--app-text-muted);
    background: transparent;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-family: inherit;
    transition: color 0.2s ease, background 0.2s ease;
}

.demo-mode-tab:hover {
    color: var(--app-text);
}

.demo-mode-tab[aria-selected="true"] {
    background: var(--app-button-bg);
    color: var(--app-button-text);
}

.demo-mode-tab:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.8);
    outline-offset: 2px;
}

/* Demo body / screens */
.demo-body {
    position: relative;
    min-height: 280px;
}

.demo-screen {
    display: none;
}

.demo-screen.demo-screen-active {
    display: block;
}

.demo-screen[hidden] {
    display: none !important;
}

.demo-screen-title {
    margin: 0 0 20px;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--app-text-muted);
    text-align: center;
}

/* Prompt card (large, centered) */
.demo-prompt-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 120px;
    margin-bottom: 28px;
    padding: 28px 32px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    border: 2px dashed rgba(255, 255, 255, 0.25);
}

.demo-prompt-text {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--app-text);
}

.demo-prompt-hint {
    font-size: 1rem;
    color: var(--app-text-muted);
}

/* Answers grid (2 columns) */
.demo-answers-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.demo-answer-btn {
    padding: 14px 20px;
    background: var(--app-button-bg);
    color: var(--app-button-text);
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    box-shadow: var(--app-button-shadow);
    cursor: pointer;
    font-family: inherit;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.demo-answer-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.demo-answer-btn:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.8);
    outline-offset: 2px;
}

.demo-answer-btn.correct {
    background: #10b981;
    color: #ffffff;
}

.demo-answer-btn.incorrect {
    background: #ef4444;
    color: #ffffff;
}

.demo-answer-btn:disabled,
.demo-answer-btn.answered-dim {
    cursor: default;
}

.demo-answer-btn:disabled:hover,
.demo-answer-btn.answered-dim:hover {
    transform: none;
    box-shadow: var(--app-button-shadow);
}

.demo-answer-btn.answered-dim {
    opacity: 0.5;
    pointer-events: none;
}

.demo-retry-wrap {
    margin-top: 24px;
    text-align: center;
}

.interactive-demo-panel.app-style .demo-retry-btn {
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.2);
    color: var(--app-text);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.interactive-demo-panel.app-style .demo-retry-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.6);
}

.interactive-demo-panel.app-style .demo-retry-btn:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.8);
    outline-offset: 2px;
}

/* Assemble layout */
.demo-assemble-label {
    margin: 0 0 12px;
    font-size: 0.9rem;
    color: var(--app-text-muted);
    text-align: center;
}

.demo-assemble-slots {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    min-height: 52px;
    position: relative;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.demo-slot {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px dashed rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--app-text);
}

.demo-letter-tiles {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

.demo-letter-tile {
    width: 48px;
    height: 48px;
    padding: 0;
    background: var(--app-button-bg);
    color: var(--app-button-text);
    border: none;
    border-radius: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    box-shadow: var(--app-button-shadow);
    cursor: pointer;
    font-family: inherit;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.demo-letter-tile:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.demo-letter-tile:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.8);
    outline-offset: 2px;
}

.demo-letter-tile:disabled,
.demo-letter-tile.tile-used {
    opacity: 0.5;
    cursor: default;
}

.demo-letter-tile:disabled:hover,
.demo-letter-tile.tile-used:hover {
    transform: none;
}

/* Assemble result icon (checkmark / cross) — overlay, no layout space */
.interactive-demo-panel.app-style .demo-assemble-slots .assemble-result-icon {
    position: absolute;
    left: 100%;
    margin-left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
}

.interactive-demo-panel.app-style .demo-assemble-slots .result-icon-check {
    background: #10b981;
    color: #ffffff;
}

.interactive-demo-panel.app-style .demo-assemble-slots .result-icon-cross {
    background: #ef4444;
    color: #ffffff;
}

@media (max-width: 640px) {
    .demo-mode-tabs {
        flex-wrap: wrap;
    }

    .demo-mode-tab {
        flex: 1 1 auto;
    }

    .demo-prompt-card {
        min-height: 100px;
        padding: 20px 24px;
    }

    .demo-answers-grid {
        gap: 10px;
    }

    .demo-answer-btn {
        padding: 12px 16px;
        font-size: 0.95rem;
    }
}