/* PDF to MCQ - Studying Tab (Spaced Repetition)
   =================================================================
   Design tokens, scoped to .pdf-mcq-study-app (not :root) so they
   never leak into or collide with the active theme's own custom
   properties.

   IMPORTANT LESSON BAKED INTO THIS FILE: several interactive elements
   previously went invisible on hover (white text on a light hover
   background) because their :hover rules only changed background/
   border and relied on inheriting color from the base rule - but
   many WordPress themes attach their own global `button:hover` (or
   similar) rule that sets color, and that can win the cascade over
   an under-specified selector here. The fix applied everywhere below
   is structural, not a one-off patch: every single interactive state
   (base, :hover, :focus-visible, :active, :disabled, and each colour
   variant like .pmcqs-correct/.pmcqs-incorrect) declares its OWN
   explicit `color`, using `!important` specifically on that property,
   so no theme rule can silently take it over again.
   ================================================================= */

.pdf-mcq-study-app {
    --pmcqs-primary: #16b7cc;
    --pmcqs-primary-dark: #129aab;
    --pmcqs-primary-tint: #e3f8fb;
    --pmcqs-primary-tint-2: #eefbfc;

    --pmcqs-success: #2e7d32;
    --pmcqs-success-bg: #e8f5e9;
    --pmcqs-success-border: #4CAF50;

    --pmcqs-danger: #c0392b;
    --pmcqs-danger-bg: #ffebee;
    --pmcqs-danger-border: #f44336;

    --pmcqs-warning: #e65100;
    --pmcqs-warning-bg: #fff3e0;
    --pmcqs-warning-border: #ffe0b2;

    --pmcqs-text: #262a2e;
    --pmcqs-text-muted: #6b7280;
    --pmcqs-text-faint: #98a2b3;

    --pmcqs-panel-bg: #f9fafb;
    --pmcqs-border: #e3e6ea;
    --pmcqs-white: #ffffff;

    --pmcqs-radius-sm: 6px;
    --pmcqs-radius-md: 10px;
    --pmcqs-radius-lg: 14px;

    --pmcqs-shadow-card: 0 2px 6px rgba(16, 24, 40, 0.08), 0 1px 3px rgba(16, 24, 40, 0.08);
    --pmcqs-shadow-card-hover: 0 8px 20px rgba(16, 24, 40, 0.12), 0 3px 6px rgba(16, 24, 40, 0.08);
    --pmcqs-shadow-modal: 0 20px 40px rgba(16, 24, 40, 0.25);

    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    color: var(--pmcqs-text);
    /* A subtle tinted backdrop so the white cards inside actually stand
       out - previously this had no background of its own, so on a white
       page (like this site's) the cards blended straight into it with
       nothing but a thin border to separate them. */
    background: #f3f8f9;
    border-radius: var(--pmcqs-radius-lg);
    box-shadow: 0 1px 3px rgba(16, 24, 40, 0.05);
}

.pdf-mcq-study-app *,
.pdf-mcq-study-app *::before,
.pdf-mcq-study-app *::after {
    box-sizing: border-box;
}

.pdf-mcq-study-login-notice {
    text-align: center;
    padding: 48px 24px;
    background: var(--pmcqs-panel-bg);
    border-radius: var(--pmcqs-radius-md);
    border: 1px solid var(--pmcqs-border);
    color: var(--pmcqs-text) !important;
}

/* A visible, on-brand focus ring for keyboard users, applied to every
   interactive element in this module instead of leaving the browser
   default (which some themes also strip without replacing). */
.pdf-mcq-study-app button:focus-visible,
.pdf-mcq-study-app input:focus-visible {
    outline: 2px solid var(--pmcqs-primary);
    outline-offset: 2px;
}

/* ---------------------------------------------------------------
   Nav tabs
   --------------------------------------------------------------- */
.pmcqs-nav {
    display: flex;
    gap: 4px;
    margin-bottom: 28px;
    border-bottom: 2px solid var(--pmcqs-border);
}

.pmcqs-nav-btn {
    background: none;
    border: none;
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 600;
    color: var(--pmcqs-text-muted) !important;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    border-radius: var(--pmcqs-radius-sm) var(--pmcqs-radius-sm) 0 0;
    transition: color 0.15s ease, background-color 0.15s ease;
}

.pmcqs-nav-btn:hover {
    color: var(--pmcqs-primary) !important;
    background: var(--pmcqs-primary-tint-2);
}

.pmcqs-nav-btn.pmcqs-active,
.pmcqs-nav-btn.pmcqs-active:hover {
    color: var(--pmcqs-primary) !important;
    border-bottom-color: var(--pmcqs-primary);
    background: none;
}

.pmcqs-loading,
.pmcqs-error {
    text-align: center;
    padding: 48px;
    color: var(--pmcqs-text-faint) !important;
    font-size: 14px;
}

.pmcqs-error {
    color: var(--pmcqs-danger) !important;
}

/* ---------------------------------------------------------------
   Buttons (shared base + variants)
   Every variant sets its OWN color on every state - nothing here
   relies on inheriting from a parent or a plain base rule.
   --------------------------------------------------------------- */
.pmcqs-btn {
    padding: 10px 18px;
    border: none;
    border-radius: var(--pmcqs-radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.pmcqs-btn-primary,
.pmcqs-btn-primary:hover,
.pmcqs-btn-primary:focus-visible,
.pmcqs-btn-primary:active {
    color: #fff !important;
}

.pmcqs-btn-primary {
    background: var(--pmcqs-primary);
}

.pmcqs-btn-primary:hover {
    background: var(--pmcqs-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0, 115, 170, 0.3);
}

.pmcqs-btn-primary:active {
    transform: translateY(0);
    box-shadow: none;
}

.pmcqs-btn-secondary,
.pmcqs-btn-secondary:hover,
.pmcqs-btn-secondary:focus-visible,
.pmcqs-btn-secondary:active {
    color: var(--pmcqs-primary) !important;
}

.pmcqs-btn-secondary {
    background: #fff;
    border: 2px solid var(--pmcqs-primary);
}

.pmcqs-btn-secondary:hover {
    background: var(--pmcqs-primary-tint-2);
}

.pmcqs-btn-text,
.pmcqs-btn-text:active {
    color: var(--pmcqs-text-muted) !important;
}

.pmcqs-btn-text {
    background: none;
    padding: 8px 10px;
}

.pmcqs-btn-text:hover {
    color: var(--pmcqs-primary) !important;
    background: var(--pmcqs-primary-tint-2);
    border-radius: var(--pmcqs-radius-sm);
}

.pmcqs-btn:disabled,
.pmcqs-btn:disabled:hover {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.pmcqs-icon-btn,
.pmcqs-icon-btn:hover,
.pmcqs-icon-btn:focus-visible {
    color: var(--pmcqs-text-muted) !important;
}

.pmcqs-icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    padding: 5px 7px;
    border-radius: var(--pmcqs-radius-sm);
    opacity: 0.75;
}

.pmcqs-icon-btn:hover {
    opacity: 1;
    background: #f0f0f0;
}

.pmcqs-muted {
    color: var(--pmcqs-text-faint) !important;
    font-size: 13px;
}

/* ---------------------------------------------------------------
   Decks view
   --------------------------------------------------------------- */
.pmcqs-decks-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 26px;
    flex-wrap: wrap;
}

.pmcqs-due-banner {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    background: #c5ebf0;
    border: 2px solid #7fc9d6;
    border-radius: var(--pmcqs-radius-md);
    padding: 16px 22px;
    min-width: 260px;
    box-shadow: 0 4px 14px rgba(16, 24, 40, 0.14), 0 2px 6px rgba(16, 24, 40, 0.10);
}

.pmcqs-due-text {
    font-size: 15px;
    color: var(--pmcqs-text) !important;
}

.pmcqs-empty-state {
    text-align: center;
    padding: 64px 24px;
    background: var(--pmcqs-panel-bg);
    border-radius: var(--pmcqs-radius-md);
    border: 1px dashed var(--pmcqs-border);
    color: var(--pmcqs-text) !important;
}

.pmcqs-empty-state h3 {
    color: var(--pmcqs-text) !important;
}

.pmcqs-empty-state p {
    color: var(--pmcqs-text-muted) !important;
}

.pmcqs-empty-icon {
    font-size: 46px;
    margin-bottom: 14px;
}

.pmcqs-deck-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 18px;
}

.pmcqs-deck-card {
    background: #c5ebf0;
    border: 2px solid #7fc9d6;
    border-radius: var(--pmcqs-radius-md);
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 9px;
    box-shadow: var(--pmcqs-shadow-card);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.pmcqs-deck-card:hover {
    box-shadow: var(--pmcqs-shadow-card-hover);
    transform: translateY(-2px);
}

.pmcqs-deck-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pmcqs-deck-badge {
    font-size: 10.5px;
    font-weight: 700;
    text-transform: uppercase;
    padding: 3px 9px;
    border-radius: 10px;
    letter-spacing: 0.5px;
}

.pmcqs-badge-auto {
    background: #eceff1;
    color: #455a64 !important;
}

.pmcqs-badge-custom {
    background: var(--pmcqs-warning-bg);
    color: var(--pmcqs-warning) !important;
}

.pmcqs-deck-menu {
    display: flex;
    gap: 2px;
}

.pmcqs-deck-name {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.35;
    min-height: 42px;
    color: var(--pmcqs-text) !important;
}

.pmcqs-deck-stats {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--pmcqs-text-muted) !important;
}

.pmcqs-stat-total {
    color: var(--pmcqs-text-muted) !important;
}

.pmcqs-stat-due {
    color: var(--pmcqs-primary) !important;
    font-weight: 700;
}

.pmcqs-stat-new {
    color: var(--pmcqs-success) !important;
    font-weight: 700;
}

.pmcqs-progress-bar {
    background: #eee;
    border-radius: 4px;
    height: 7px;
    overflow: hidden;
}

.pmcqs-progress-fill {
    background: var(--pmcqs-success-border);
    height: 100%;
    transition: width 0.3s ease;
}

.pmcqs-progress-label {
    font-size: 12px;
    color: var(--pmcqs-text-faint) !important;
}

.pmcqs-deck-actions {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: 6px;
}

.pmcqs-deck-actions .pmcqs-btn-primary {
    width: 100%;
}

.pmcqs-reset-deck,
.pmcqs-reset-deck:hover {
    font-size: 12px;
    padding: 4px;
}

/* ---------------------------------------------------------------
   Create-deck modal
   --------------------------------------------------------------- */
.pmcqs-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(16, 24, 40, 0.55);
    z-index: 100000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.pmcqs-modal {
    background: #fff;
    border-radius: var(--pmcqs-radius-lg);
    padding: 26px;
    max-width: 520px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--pmcqs-shadow-modal);
    color: var(--pmcqs-text) !important;
}

.pmcqs-modal h3 {
    margin-top: 0;
    color: var(--pmcqs-text) !important;
}

.pmcqs-field {
    margin-bottom: 18px;
}

.pmcqs-field label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 14px;
    color: var(--pmcqs-text) !important;
}

.pmcqs-field input[type="text"],
.pmcqs-field input[type="number"] {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid #7fc9d6;
    border-radius: var(--pmcqs-radius-sm);
    font-size: 14px;
    color: var(--pmcqs-text) !important;
    background: #f0f2f4;
}

.pmcqs-field input[type="text"]:focus-visible,
.pmcqs-field input[type="number"]:focus-visible {
    border-color: var(--pmcqs-primary);
}

.pmcqs-field-hint {
    font-size: 12px;
    color: var(--pmcqs-text-faint) !important;
    margin: 6px 0 0;
}

.pmcqs-checkbox-list {
    max-height: 150px;
    overflow-y: auto;
    border: 1px solid var(--pmcqs-border);
    border-radius: var(--pmcqs-radius-sm);
    padding: 8px;
}

.pmcqs-checkbox-row {
    display: block;
    padding: 7px 4px;
    font-size: 14px;
    font-weight: normal;
    color: var(--pmcqs-text) !important;
}

.pmcqs-search-results {
    max-height: 160px;
    overflow-y: auto;
    margin-top: 6px;
}

.pmcqs-search-result,
.pmcqs-search-result:hover {
    color: var(--pmcqs-text) !important;
}

.pmcqs-search-result {
    padding: 9px 11px;
    border: 1px solid var(--pmcqs-border);
    border-radius: var(--pmcqs-radius-sm);
    margin-bottom: 4px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.pmcqs-search-result:hover {
    background: var(--pmcqs-primary-tint-2);
    border-color: var(--pmcqs-primary);
}

.pmcqs-source {
    display: block;
    color: var(--pmcqs-text-faint) !important;
    font-size: 11px;
    margin-top: 2px;
}

.pmcqs-selected-label {
    font-size: 13px;
    color: var(--pmcqs-success) !important;
    font-weight: 700;
}

.pmcqs-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 22px;
}

/* ---------------------------------------------------------------
   Study session (flashcard)
   --------------------------------------------------------------- */
.pmcqs-study-session {
    max-width: 640px;
    margin: 0 auto;
}

.pmcqs-session-topbar {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 26px;
}

.pmcqs-session-progress {
    flex: 1;
    background: #eee;
    border-radius: 4px;
    height: 8px;
    overflow: hidden;
}

.pmcqs-session-progress-fill {
    background: var(--pmcqs-primary);
    height: 100%;
    transition: width 0.3s ease;
}

.pmcqs-session-count {
    font-size: 13px;
    color: var(--pmcqs-text-muted) !important;
    white-space: nowrap;
}

.pmcqs-flashcard {
    position: relative;
    background: var(--pmcqs-panel-bg);
    border: 1px solid var(--pmcqs-border);
    border-radius: var(--pmcqs-radius-lg);
    padding: 32px;
    box-shadow: var(--pmcqs-shadow-card);
}

.pmcqs-new-badge {
    position: absolute;
    top: -11px;
    left: 22px;
    background: var(--pmcqs-success);
    color: #fff !important;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 11px;
    border-radius: 10px;
    letter-spacing: 0.5px;
}

.pmcqs-question-text {
    margin-top: 0;
    font-size: 19px;
    font-weight: 600;
    line-height: 1.5;
    color: var(--pmcqs-text) !important;
}

.pmcqs-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 22px;
}

/* The bug that started this rewrite: every one of these states now
   declares its own color explicitly, so nothing can be silently
   overridden by the theme's own button styling again. */
.pmcqs-option-btn,
.pmcqs-option-btn:hover,
.pmcqs-option-btn:focus-visible,
.pmcqs-option-btn:active {
    color: var(--pmcqs-text) !important;
}

.pmcqs-option-btn {
    text-align: left;
    background: #fff;
    border: 2px solid var(--pmcqs-border);
    border-radius: var(--pmcqs-radius-sm);
    padding: 14px 16px;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.pmcqs-option-btn:hover:not(:disabled) {
    border-color: var(--pmcqs-primary);
    background: var(--pmcqs-primary-tint-2);
    transform: translateX(2px);
}

.pmcqs-option-btn.pmcqs-correct,
.pmcqs-option-btn.pmcqs-correct:hover {
    border-color: var(--pmcqs-success-border);
    background: var(--pmcqs-success-bg);
    color: var(--pmcqs-success) !important;
    font-weight: 700;
}

.pmcqs-option-btn.pmcqs-incorrect,
.pmcqs-option-btn.pmcqs-incorrect:hover {
    border-color: var(--pmcqs-danger-border);
    background: var(--pmcqs-danger-bg);
    color: var(--pmcqs-danger) !important;
}

.pmcqs-option-btn:disabled {
    cursor: default;
}

.pmcqs-feedback {
    margin-top: 24px;
}

.pmcqs-feedback-inner {
    border-radius: var(--pmcqs-radius-sm);
    padding: 18px 20px;
    color: var(--pmcqs-text) !important;
}

.pmcqs-feedback-inner strong {
    color: inherit !important;
}

.pmcqs-fb-correct {
    background: var(--pmcqs-success-bg);
    border: 1px solid var(--pmcqs-success-border);
    color: var(--pmcqs-success) !important;
}

.pmcqs-fb-incorrect {
    background: var(--pmcqs-danger-bg);
    border: 1px solid var(--pmcqs-danger-border);
    color: var(--pmcqs-danger) !important;
}

.pmcqs-explanation {
    font-size: 14px;
    color: var(--pmcqs-text) !important;
    margin: 10px 0;
    line-height: 1.5;
}

.pmcqs-rating-row {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 14px;
}

.pmcqs-rating-label {
    font-size: 13px;
    color: var(--pmcqs-text-muted) !important;
    margin-right: 4px;
}

.pmcqs-rate-btn,
.pmcqs-rate-btn:hover,
.pmcqs-rate-btn:focus-visible {
    color: var(--pmcqs-text) !important;
}

.pmcqs-rate-btn {
    background: #fff;
    border: 1px solid #ccc;
    padding: 7px 15px;
}

.pmcqs-rate-btn:hover {
    border-color: var(--pmcqs-primary);
    background: var(--pmcqs-primary-tint-2);
}

.pmcqs-rate-good,
.pmcqs-rate-good:hover {
    border-color: var(--pmcqs-success-border) !important;
    color: var(--pmcqs-success) !important;
    background: var(--pmcqs-success-bg);
}

.pmcqs-next-review {
    font-size: 12px;
    color: var(--pmcqs-text-faint) !important;
    margin-top: 12px;
}

.pmcqs-session-end {
    max-width: 480px;
    margin: 0 auto;
    color: var(--pmcqs-text) !important;
}

.pmcqs-session-end h2 {
    color: var(--pmcqs-text) !important;
}

.pmcqs-session-end p {
    color: var(--pmcqs-text-muted) !important;
}

.pmcqs-session-end .pmcqs-btn {
    display: block;
    width: 100%;
    margin-top: 10px;
}

.pmcqs-session-score {
    font-size: 20px;
    font-weight: 700;
    color: var(--pmcqs-primary) !important;
}

/* ---------------------------------------------------------------
   Stats view
   --------------------------------------------------------------- */
.pmcqs-stats-view h3 {
    color: var(--pmcqs-text) !important;
}

.pmcqs-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 14px;
    margin-bottom: 30px;
}

.pmcqs-stat-card {
    background: #c5ebf0;
    border: 2px solid #7fc9d6;
    border-radius: var(--pmcqs-radius-md);
    padding: 18px;
    text-align: center;
    box-shadow: 0 4px 14px rgba(16, 24, 40, 0.14), 0 2px 6px rgba(16, 24, 40, 0.10);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.pmcqs-stat-card:hover {
    box-shadow: var(--pmcqs-shadow-card-hover);
    transform: translateY(-2px);
}

.pmcqs-stat-value {
    font-size: 26px;
    font-weight: 700;
    color: var(--pmcqs-primary) !important;
}

.pmcqs-stat-label {
    font-size: 12px;
    color: var(--pmcqs-text-faint) !important;
    margin-top: 4px;
}

.pmcqs-heatmap {
    background: #c5ebf0;
    border: 2px solid #7fc9d6;
    border-radius: var(--pmcqs-radius-md);
    padding: 18px;
    overflow-x: auto;
    box-shadow: 0 4px 14px rgba(16, 24, 40, 0.14), 0 2px 6px rgba(16, 24, 40, 0.10);
}

.pmcqs-heatmap-grid {
    display: flex;
    gap: 3px;
}

.pmcqs-heatmap-col {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.pmcqs-heatmap-cell {
    width: 11px;
    height: 11px;
    border-radius: 2px;
    background: #ebedf0;
    transition: transform 0.1s ease;
}

.pmcqs-heatmap-cell:not(.pmcqs-heatmap-empty):hover {
    transform: scale(1.35);
}

.pmcqs-heatmap-empty {
    background: transparent;
}

.pmcqs-heatmap-level-0 { background: #ebedf0; }
.pmcqs-heatmap-level-1 { background: #c6e6b5; }
.pmcqs-heatmap-level-2 { background: #7fcb69; }
.pmcqs-heatmap-level-3 { background: #44a340; }
.pmcqs-heatmap-level-4 { background: #1e6823; }

.pmcqs-heatmap-legend {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: var(--pmcqs-text-faint) !important;
    margin-top: 10px;
}

.pmcqs-heatmap-legend .pmcqs-heatmap-cell {
    width: 10px;
    height: 10px;
}

.pmcqs-weakest-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.pmcqs-weakest-item {
    background: #fff3e0;
    border: 2px solid #f0c48a;
    border-radius: var(--pmcqs-radius-sm);
    padding: 11px 15px;
    font-size: 14px;
    color: var(--pmcqs-text) !important;
    box-shadow: 0 2px 6px rgba(16, 24, 40, 0.08);
}

.pmcqs-lapse-count {
    display: inline-block;
    background: #f57c00;
    color: #fff !important;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 9px;
    border-radius: 10px;
    margin-right: 10px;
}

/* ---------------------------------------------------------------
   Settings view
   --------------------------------------------------------------- */
.pmcqs-settings-view {
    max-width: 480px;
    color: var(--pmcqs-text) !important;
    background: #c5ebf0;
    border: 2px solid #7fc9d6;
    border-radius: var(--pmcqs-radius-md);
    padding: 20px 22px;
    box-shadow: 0 4px 14px rgba(16, 24, 40, 0.14), 0 2px 6px rgba(16, 24, 40, 0.10);
}

.pmcqs-settings-view h3 {
    color: var(--pmcqs-text) !important;
}

.pmcqs-settings-status {
    margin-top: 10px;
    font-size: 13px;
    color: var(--pmcqs-success) !important;
    font-weight: 700;
}

/* ---------------------------------------------------------------
   Responsive
   --------------------------------------------------------------- */
@media (max-width: 768px) {
    .pdf-mcq-study-app {
        padding: 12px;
    }

    .pmcqs-nav-btn {
        padding: 10px 12px;
        font-size: 13px;
    }

    .pmcqs-due-banner {
        flex-direction: column;
        align-items: flex-start;
    }

    .pmcqs-deck-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .pmcqs-flashcard {
        padding: 18px;
    }

    .pmcqs-question-text {
        font-size: 16px;
    }

    .pmcqs-option-btn {
        padding: 12px;
        font-size: 14px;
    }

    .pmcqs-option-btn:hover:not(:disabled) {
        transform: none;
    }

    .pmcqs-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pmcqs-heatmap-cell {
        width: 8px;
        height: 8px;
    }
}

@media (max-width: 420px) {
    .pmcqs-deck-grid {
        grid-template-columns: 1fr;
    }
}