body[data-page="test"] {
    --test-blue: #1e3a8a;
    --test-blue-strong: #1d4ed8;
    --test-blue-soft: #eef4ff;
    --test-border: #ccd7e8;
    --test-muted: #526078;
}

body[data-page="test"] .test-main {
    width: min(1120px, 100%);
    margin-inline: auto;
}

body[data-page="test"] .test-stack > .card {
    min-width: 0;
    padding: clamp(1rem, 2.6vw, 2rem);
    background: #fff;
    animation: none;
}

body[data-page="test"] .test-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

body[data-page="test"] [hidden],
body[data-page="test"] .hidden {
    display: none !important;
}

body[data-page="test"] .test-main :where(button, input, select) {
    font: inherit;
    touch-action: manipulation;
}

body[data-page="test"] .test-main :is(button, input, select, [tabindex]):focus-visible {
    outline: 3px solid var(--test-blue-strong);
    outline-offset: 3px;
}

body[data-page="test"] .test-main button {
    min-height: 44px;
    transition: none;
}

body[data-page="test"] .test-main button:disabled {
    color: #657187;
    border-color: #dde3ec;
    background: #edf0f5;
    box-shadow: none;
    cursor: not-allowed;
    transform: none;
}

body[data-page="test"] .test-section-heading {
    margin-bottom: 1.5rem;
}

body[data-page="test"] .test-section-heading h2 {
    margin: 0 0 0.45rem;
    letter-spacing: -0.04em;
}

body[data-page="test"] .test-helper {
    margin: 0;
    color: var(--test-muted);
    font-size: 0.85rem;
    line-height: 1.65;
    overflow-wrap: anywhere;
    word-break: keep-all;
}

body[data-page="test"] .config-group h3 {
    color: #34415a;
    font-size: 0.88rem;
    letter-spacing: 0;
    text-transform: none;
}

body[data-page="test"] .test-type-option {
    min-width: 0;
    color: var(--text);
    border-color: var(--test-border);
    background: #fff;
}

body[data-page="test"] .test-type-option .label {
    gap: 0.35rem;
    line-height: 1.4;
}

body[data-page="test"] .test-type-option .label-sub {
    color: var(--test-muted);
}

body[data-page="test"] .test-type-option:is(.active, [aria-pressed="true"]) {
    border-color: var(--test-blue-strong);
    background: var(--test-blue-soft);
    box-shadow: inset 0 0 0 1px var(--test-blue-strong);
}

body[data-page="test"] #book-options {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem;
}

body[data-page="test"] #book-options .test-type-option {
    position: relative;
    display: grid;
    grid-template-rows: auto 1fr;
    gap: 0.65rem;
    min-height: 130px;
    padding: 1rem;
    text-align: left;
}

body[data-page="test"] .test-book-cover {
    display: block;
    width: 100%;
    aspect-ratio: 500 / 600;
    justify-self: center;
    align-self: center;
    background: transparent url('/assets/images/sample-books-lineup.png') no-repeat;
    background-size: 412% auto;
    background-position: calc(2.564102564% + var(--book-index) * 32.051282051%) bottom;
    mix-blend-mode: multiply;
}

body[data-page="test"] .test-book-browse-hint {
    display: none;
}

body[data-page="test"] .test-book-edition {
    padding-right: 1.25rem;
    color: var(--test-blue);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    overflow-wrap: anywhere;
}

body[data-page="test"] .test-book-state {
    position: absolute;
    top: 0.95rem;
    right: 0.85rem;
    width: 1.1rem;
    height: 1.1rem;
    border: 1px solid #aab9cf;
    border-radius: 50%;
}

body[data-page="test"] [data-book][aria-pressed="true"] .test-book-state {
    border-color: var(--test-blue-strong);
    background: var(--test-blue-strong);
}

body[data-page="test"] [data-book][aria-pressed="true"] .test-book-state::after {
    content: "";
    position: absolute;
    top: 0.18rem;
    left: 0.32rem;
    width: 0.3rem;
    height: 0.5rem;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

body[data-page="test"] #test-book-caption {
    margin-top: 0.65rem;
    color: var(--test-blue);
    font-weight: 600;
}

body[data-page="test"] .test-data-feedback {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.4rem 0.75rem;
    margin-top: 0.25rem;
}

body[data-page="test"] #test-setup-view .test-setup-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 1.5rem;
    margin: 1.25rem 0 0;
    padding-top: 1.25rem;
    border-top: 1px solid var(--line);
}

body[data-page="test"] :is(.test-setup-scope-column, .test-setup-controls-column) {
    min-width: 0;
}

body[data-page="test"] #test-setup-view :is(.test-scope-group, .test-controls-cluster) {
    border: 0;
    border-radius: 0;
    padding: 0;
    background: transparent;
}

body[data-page="test"] #test-setup-view .test-controls-cluster {
    gap: 1.25rem;
}

body[data-page="test"] #test-setup-view .test-controls-cluster .config-group {
    padding: 0;
    border: 0;
    background: transparent;
}

body[data-page="test"] .test-scope-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.65rem;
}

body[data-page="test"] .test-scope-extras {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem 1rem;
}

body[data-page="test"] .test-scope-extras > .toggle-option {
    min-width: 0;
    min-height: 44px;
}

body[data-page="test"] #test-relations-hint {
    margin: 0.35rem 0 0.85rem;
    font-size: 0.8rem;
}

body[data-page="test"] .test-mini-btn {
    padding: 0.5rem 0.85rem;
    border-radius: 9px;
    color: var(--test-blue);
    font-size: 0.82rem;
    font-weight: 600;
}

body[data-page="test"] #test-setup-view #test-scope-summary {
    min-height: 2.75rem;
    margin-bottom: 0.55rem;
    padding: 0.65rem 0.8rem;
    border: 0;
    background: var(--test-blue-soft);
    color: var(--test-blue);
    font-weight: 600;
    line-height: 1.6;
    overflow-wrap: anywhere;
}

body[data-page="test"] #test-setup-view #test-toc-checklist {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.35rem;
    max-height: 304px;
    padding: 0.4rem;
    border-color: var(--test-border);
    scrollbar-gutter: stable;
    scroll-padding-block: 0.5rem;
}

body[data-page="test"] #test-setup-view .test-scope-group .toc-checklist-item {
    min-width: 0;
    min-height: 44px;
    padding: 0.6rem 0.4rem;
    gap: 0.45rem;
}

body[data-page="test"] #test-toc-checklist input {
    flex: 0 0 auto;
    margin: 0;
    width: 1.1rem;
    height: 1.1rem;
}

body[data-page="test"] #test-toc-checklist .label {
    flex: 1 0 auto;
    white-space: nowrap;
}

body[data-page="test"] #test-toc-checklist .badge {
    flex: 0 0 auto;
}

body[data-page="test"] #test-toc-checklist .toc-checklist-item:focus-within {
    outline: 2px solid var(--test-blue-strong);
    outline-offset: -2px;
}

body[data-page="test"] #test-selection-limit {
    margin-top: 0.65rem;
}

body[data-page="test"] #test-setup-view #exam-type-options {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.45rem;
}

body[data-page="test"] #test-setup-view #exam-type-options .test-type-option {
    min-height: 76px;
    padding: 0.65rem 0.35rem;
}

body[data-page="test"] #test-setup-view .test-setup-inline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

body[data-page="test"] :is(#test-question-count, #test-time-limit, #test-choice-count) {
    width: 100%;
    min-width: 0;
    max-width: none;
    min-height: 48px;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--test-border);
    border-radius: 10px;
    color: var(--text);
    background: #fff;
    font-size: 1rem;
}

body[data-page="test"] #test-time-limit {
    color: var(--test-muted);
    background: #f5f7fb;
}

body[data-page="test"] #test-time-hint {
    margin-top: 0.35rem;
    font-size: 0.76rem;
}

body[data-page="test"] #test-setup-view .test-setup-inline .toggle-option {
    min-height: 48px;
    padding: 0 0.65rem;
    gap: 0.4rem;
    font-size: 0.85rem;
}

body[data-page="test"] .toggle-option > label[for] {
    cursor: pointer;
}

/* Keep the existing switches keyboard-accessible with a full touch target. */
body[data-page="test"] .switch {
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
}

body[data-page="test"] .switch input {
    display: block;
    position: absolute;
    inset: 0;
    z-index: 1;
    width: 100%;
    height: 100%;
    margin: 0;
    opacity: 0;
    cursor: pointer;
}

body[data-page="test"] .switch .slider {
    inset: 10px 1px 11px;
    transition: none;
}

body[data-page="test"] .switch .slider::before {
    transition: none;
}

body[data-page="test"] .switch input:focus-visible + .slider {
    outline: 3px solid var(--test-blue-strong);
    outline-offset: 3px;
}

body[data-page="test"] .switch input:disabled + .slider {
    opacity: 0.45;
    cursor: not-allowed;
}

body[data-page="test"] .test-setup-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.85rem 1.5rem;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--line);
}

body[data-page="test"] #test-start-btn {
    width: min(100%, 260px);
}

body[data-page="test"] .test-main .button-primary {
    margin: 0;
    min-height: 48px;
    font-weight: 700;
    box-shadow: none;
    transform: none;
}

body[data-page="test"] .test-secondary-btn {
    min-height: 48px;
    padding: 0.75rem 1rem;
    border: 1px solid var(--test-border);
    border-radius: 12px;
    color: var(--test-blue);
    background: #fff;
    font-weight: 600;
    cursor: pointer;
}

/* Long meanings belong in the page flow, not a clipped inner viewport. */
body[data-page="test"] #test-run-view {
    width: min(980px, 100%);
    grid-template-rows: none;
    grid-auto-rows: auto;
    gap: 1rem;
    max-height: none;
    overflow: visible;
}

body[data-page="test"] #test-run-view .toc-title-row {
    align-items: center;
    flex-wrap: wrap;
    gap: 0.85rem;
}

body[data-page="test"] .test-progress-heading,
body[data-page="test"] .test-timer {
    display: grid;
    gap: 0.25rem;
}

body[data-page="test"] .test-eyebrow {
    color: var(--test-muted);
    font-size: 0.75rem;
    font-weight: 500;
}

body[data-page="test"] #test-run-view #test-progress {
    font-size: 1.3rem;
    font-variant-numeric: tabular-nums;
}

body[data-page="test"] #test-run-view .test-run-meta {
    flex-wrap: wrap;
    gap: 0.7rem;
}

body[data-page="test"] .test-timer {
    text-align: right;
}

body[data-page="test"] #test-run-view #test-remaining-time {
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: var(--test-blue);
    font-size: 1.3rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
}

body[data-page="test"] .test-progress-track {
    display: grid;
    gap: 0.4rem;
}

body[data-page="test"] #test-progress-bar {
    display: block;
    appearance: none;
    width: 100%;
    height: 6px;
    border: 0;
    border-radius: 999px;
    overflow: hidden;
    color: var(--test-blue-strong);
    background: #e6ecf5;
}

body[data-page="test"] #test-progress-bar::-webkit-progress-bar {
    border-radius: 999px;
    background: #e6ecf5;
}

body[data-page="test"] #test-progress-bar::-webkit-progress-value {
    border-radius: 999px;
    background: var(--test-blue-strong);
}

body[data-page="test"] #test-progress-bar::-moz-progress-bar {
    border-radius: 999px;
    background: var(--test-blue-strong);
}

body[data-page="test"] #test-run-view #test-question-prompt {
    width: 100%;
    max-width: none;
    padding: clamp(1rem, 3vw, 2rem) 0;
    font-size: clamp(1.45rem, 3vw, 2rem);
    line-height: 1.6;
    white-space: pre-line;
    word-break: keep-all;
    overflow-wrap: anywhere;
    scroll-margin-top: 1.5rem;
}

body[data-page="test"] #test-run-view[data-direction="K2E"] #test-question-prompt {
    padding-inline: 0.5rem;
    font-size: clamp(1.05rem, 2vw, 1.35rem);
    text-align: left;
    line-height: 1.85;
}

body[data-page="test"] #test-run-view #test-choice-list {
    min-width: 0;
    max-height: none;
    overflow: visible;
    padding: 0;
    border: 0;
    background: transparent;
}

body[data-page="test"] #test-run-view #test-choice-list.test-choice-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.8rem;
    align-items: stretch;
}

body[data-page="test"] #test-run-view .test-choice-card {
    display: grid;
    grid-template-columns: 1.75rem minmax(0, 1fr);
    align-items: start;
    gap: 0.65rem;
    min-width: 0;
    min-height: 82px;
    height: auto;
    padding: 1rem 1.15rem;
    border-color: var(--test-border);
    box-shadow: none;
    white-space: normal;
}

body[data-page="test"] .test-choice-number {
    display: grid;
    place-items: center;
    width: 1.75rem;
    min-height: 1.75rem;
    border: 1px solid var(--test-border);
    border-radius: 7px;
    color: var(--test-muted);
    background: #f7f9fd;
    font-size: 0.8rem;
    font-weight: 700;
    line-height: 1;
}

body[data-page="test"] .test-choice-card[aria-pressed="true"] .test-choice-number {
    border-color: var(--test-blue-strong);
    color: #fff;
    background: var(--test-blue-strong);
}

body[data-page="test"] #test-run-view .test-choice-text {
    font-size: 1rem;
    line-height: 1.8;
    text-align: left;
    white-space: pre-line;
    word-break: keep-all;
    overflow-wrap: anywhere;
}

body[data-page="test"] #test-run-view[data-direction="K2E"] .test-choice-text {
    text-align: center;
    font-size: 1.08rem;
}

body[data-page="test"] #test-run-view .test-choice-card:is(.is-selected, [aria-pressed="true"]) {
    border-color: var(--test-blue-strong);
    background: var(--test-blue-soft);
    box-shadow: inset 0 0 0 2px var(--test-blue-strong);
}

body[data-page="test"] .test-question-navigation,
body[data-page="test"] .test-warning-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

body[data-page="test"] .test-question-navigation {
    margin-top: 0.5rem;
}

body[data-page="test"] .test-run-submit-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--line);
}

body[data-page="test"] .test-submit-warning {
    padding: 1rem;
    border: 1px solid #e5c184;
    border-radius: 12px;
    background: #fffbf3;
    color: #70450b;
    scroll-margin-block: 1rem;
}

body[data-page="test"] #test-submit-warning-text {
    margin: 0 0 0.85rem;
    font-size: 0.9rem;
    line-height: 1.7;
    overflow-wrap: anywhere;
}

body[data-page="test"] .test-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
    margin: 1.25rem 0 1.5rem;
}

body[data-page="test"] #result-headline {
    max-height: none;
    overflow: visible;
    line-height: 1.7;
    overflow-wrap: anywhere;
}

body[data-page="test"] .test-metric-item {
    padding: 1rem;
    border: 0;
    background: #f3f6fc;
}

body[data-page="test"] .test-metric-item span {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--test-blue);
}

body[data-page="test"] .test-review-item {
    min-width: 0;
    padding: 0.9rem;
    gap: 0.5rem;
}

body[data-page="test"] :is(.test-review-prompt, .test-review-compare, .test-review-value) {
    min-width: 0;
    line-height: 1.7;
    white-space: pre-line;
    overflow-wrap: anywhere;
    word-break: keep-all;
}

body[data-page="test"] .test-result-actions {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding-top: 1rem;
    border-top: 1px solid var(--line);
}

@media (hover: hover) {
    body[data-page="test"] .test-type-option:not(:disabled):hover,
    body[data-page="test"] .test-secondary-btn:not(:disabled):hover,
    body[data-page="test"] .test-mini-btn:not(:disabled):hover {
        border-color: var(--test-blue-strong);
        background: var(--test-blue-soft);
    }
}

@media (max-width: 800px) {
    body[data-page="test"] #test-setup-view .test-setup-layout {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    body[data-page="test"] #test-setup-view #test-toc-checklist {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    body[data-page="test"] #book-options {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 600px) {
    body[data-page="test"] #app {
        width: calc(100% - 1rem);
        padding-top: 0.65rem;
    }

    body[data-page="test"] .test-stack > .card {
        padding: 1rem;
        border-radius: 16px;
    }

    body[data-page="test"] .test-section-heading {
        margin-bottom: 1.1rem;
    }

    body[data-page="test"] #book-options {
        grid-template-columns: none;
        grid-auto-flow: column;
        grid-auto-columns: 78%;
        gap: 0.75rem;
        overflow-x: auto;
        overscroll-behavior-x: contain;
        scroll-snap-type: x proximity;
        scroll-padding-inline: 6px;
        padding: 6px 6px 0.6rem;
    }

    body[data-page="test"] #book-options .test-type-option {
        min-height: 116px;
        padding: 0.8rem;
        gap: 0.5rem;
        scroll-snap-align: start;
    }

    body[data-page="test"] .test-book-browse-hint {
        display: block;
        margin: 0.3rem 0 0;
        color: var(--test-muted);
        font-size: 0.78rem;
        line-height: 1.5;
    }

    body[data-page="test"] #test-setup-view #test-toc-checklist {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        max-height: 260px;
    }

    body[data-page="test"] #test-start-btn {
        width: 100%;
    }

    body[data-page="test"] #test-run-view #test-choice-list.test-choice-grid {
        grid-template-columns: 1fr;
        gap: 0.65rem;
    }

    body[data-page="test"] #test-run-view .test-choice-card {
        min-height: 64px;
        padding: 0.9rem 1rem;
    }

    body[data-page="test"] #test-run-view .test-run-meta {
        gap: 0.5rem;
    }

    body[data-page="test"] .test-metrics {
        gap: 0.4rem;
    }

    body[data-page="test"] .test-metric-item {
        padding: 0.75rem 0.5rem;
    }

    body[data-page="test"] .test-metric-item strong {
        font-size: 0.72rem;
    }

    body[data-page="test"] .test-metric-item span {
        font-size: 0.95rem;
        overflow-wrap: anywhere;
    }

    body[data-page="test"] .test-result-actions,
    body[data-page="test"] .test-warning-actions {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 360px) {
    body[data-page="test"] #test-setup-view #test-toc-checklist {
        grid-template-columns: 1fr;
    }

    body[data-page="test"] #test-setup-view .test-setup-inline,
    body[data-page="test"] #test-setup-view #exam-type-options {
        grid-template-columns: 1fr;
    }
}