/*
 * Bootstrap-First Styling
 *
 * DESIGN PHILOSOPHY:
 * 1. Use Bootstrap components and utilities wherever possible
 * 2. Customize via Bootstrap CSS variables, not custom variables
 * 3. Mobile-first, responsive design
 * 4. KISS - Keep It Simple, Stupid
 *
 * COLOR SCHEME:
 * - Primary (#006591): Header, footer background, text links
 * - Info (#428bca): Navigation buttons, interactive elements
 * - Warning (#f5a623): Selected answers, marked items, active states
 */

/* === Bootstrap Color Customization === */
:root {
    /* Primary: Dark blue for header/footer */
    --bs-primary: #006591;
    --bs-primary-rgb: 0, 101, 145;

    /* Info: Lighter blue for nav buttons */
    --bs-info: #428bca;
    --bs-info-rgb: 66, 139, 202;

    /* Warning: Orange for selections/active states */
    --bs-warning: #f5a623;
    --bs-warning-rgb: 245, 166, 35;

    /* Keep defaults for other colors */
    --bs-success: #198754;
    --bs-danger: #dc3545;
    --bs-secondary: #6c757d;
    --bs-light: #f8f9fa;
}

/* === Bootstrap Component Overrides === */

/* Square corners for quiz-specific buttons */
.nav-btn,
.answer-option,
.header-icon-btn {
    border-radius: 0;
}

.btn-primary {
    --bs-btn-bg: var(--bs-primary);
    --bs-btn-border-color: var(--bs-primary);
    --bs-btn-hover-bg: #005580;
    --bs-btn-hover-border-color: #004d73;
    --bs-btn-active-bg: #004d73;
    --bs-btn-active-border-color: #004566;
}

.btn-outline-primary {
    --bs-btn-color: var(--bs-primary);
    --bs-btn-border-color: var(--bs-primary);
    --bs-btn-hover-bg: var(--bs-primary);
    --bs-btn-hover-border-color: var(--bs-primary);
}

.text-primary {
    color: var(--bs-primary) !important;
}

.bg-primary {
    background-color: var(--bs-primary) !important;
}

/* === Quiz Header === */
.quiz-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--bs-primary);
    color: #fff;
    padding: 0.25rem 0.5rem 0.25rem 0.75rem;
    min-height: 48px;
    overflow: hidden;
}

@media (min-width: 576px) {
    .quiz-header {
        padding: 0.25rem 1rem;
    }
}

.header-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 1;
    min-width: 0;
}

@media (min-width: 576px) {
    .header-left {
        gap: 0.75rem;
    }
}

.header-tafel {
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1.1;
}

.header-tafel-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    opacity: 0.8;
    letter-spacing: 0.05em;
}

.header-tafel-number {
    font-size: 1.5rem;
    font-weight: 700;
}

@media (min-width: 576px) {
    .header-tafel-number {
        font-size: 1.75rem;
    }
}

.header-divider {
    font-size: 2rem;
    opacity: 0.5;
    font-weight: 300;
    align-self: stretch;
    display: flex;
    align-items: center;
}

.header-user {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    min-width: 0;
    overflow: hidden;
}

.header-user-name {
    font-size: 1.125rem;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.header-user-exam {
    font-size: 0.75rem;
    text-transform: uppercase;
    opacity: 0.8;
    letter-spacing: 0.05em;
}

@media (min-width: 576px) {
    .header-user-name {
        font-size: 1.5rem;
    }

    .header-user-exam {
        font-size: 1rem;
    }
}

.header-timer-label,
.header-timer-unit {
    font-size: 0.65rem;
    text-transform: uppercase;
    opacity: 0.8;
    line-height: 1;
}

.header-timer {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

@media (min-width: 576px) {
    .header-timer {
        font-size: 1.5rem;
    }
}

.header-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    line-height: 1;
    gap: 0;
    flex-shrink: 1;
    min-width: 0;
}

.header-right {
    display: flex;
    align-items: stretch;
    gap: 0;
    margin: -0.25rem -0.5rem;
    margin-left: 0;
    flex-shrink: 0;
}

@media (min-width: 576px) {
    .header-right {
        margin: -0.25rem -1rem;
        margin-left: 0;
    }
}

.header-icon-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.125rem;
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.1) 100%), var(--bs-info);
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 0.375rem 0.5rem;
    font-size: 0.625rem;
    text-transform: uppercase;
    transition: background 0.15s;
    min-width: 44px;
}

@media (min-width: 576px) {
    .header-icon-btn {
        gap: 0.25rem;
        padding: 0.5rem 1rem;
        font-size: 0.75rem;
    }
}

.header-icon-btn:hover {
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.15) 100%), #3a7bb8;
}

/* Header Icon Buttons - Active State */
.header-icon-btn.active,
.header-icon-btn[aria-pressed="true"] {
    background-color: var(--bs-warning);
}

/* === Question Content Column === */
.question-content-column {
    background-color: #e8eef5;
}

/* === Inline Overview Panel === */
#inline-overview {
    flex: 1;
    background-color: #fff;
    padding: 2rem;
    overflow-y: auto;
}

.inline-overview-content {
    max-width: 900px;
    margin: 0 auto;
}

.overview-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 0.5rem;
}

.overview-description {
    font-size: 1.125rem;
    color: #666;
    margin-bottom: 1.5rem;
}

.overview-divider {
    border: none;
    border-top: 1px solid #ddd;
    margin: 1.5rem 0;
}

.overview-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    font-size: 1rem;
    text-transform: uppercase;
    color: #666;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.legend-box {
    width: 20px;
    height: 20px;
    border: 2px solid #999;
}

.legend-unanswered {
    background-color: #fff;
}

.legend-answered {
    background-color: #999;
    border-color: #999;
}

.legend-unavailable {
    background-color: #ccc;
    border-color: #ccc;
}

.legend-star {
    color: var(--bs-warning);
    font-size: 1.25rem;
}

/* === Overview Grid (Inline) === */
.overview-grid-inline {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.overview-grid-item {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #999;
    background-color: #fff;
    font-size: 1.25rem;
    color: #333;
    cursor: pointer;
    position: relative;
    transition: all 0.15s;
}

.overview-grid-item:hover {
    border-color: var(--bs-info);
    background-color: #f0f7ff;
}

.overview-grid-item.answered {
    background-color: #999;
    border-color: #999;
    color: #fff;
}

.overview-grid-item.current {
    border-color: var(--bs-info);
    border-width: 3px;
    background-color: #b8c5d0;
}

.overview-grid-item.marked::after {
    content: "★";
    position: absolute;
    top: -8px;
    right: -4px;
    color: var(--bs-warning);
    font-size: 1.25rem;
}

.overview-grid-item.info {
    background-color: #999;
    border-color: #999;
    color: #fff;
    font-style: italic;
}

/* === Help Panel === */
#help-panel {
    flex: 1;
    background-color: #fff;
    padding: 2rem;
    overflow-y: auto;
}

.help-content {
    max-width: 700px;
    margin: 0 auto;
}

.help-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1.5rem;
}

.help-text .help-intro {
    font-size: 1.125rem;
    color: #555;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.help-text h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--bs-primary);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.help-text h3:first-of-type {
    margin-top: 0;
}

.help-text p {
    font-size: 1rem;
    color: #555;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.help-text strong {
    color: #333;
}

/* === Submit Exam Button (red danger style) === */
.nav-btn.nav-btn-danger {
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.1) 100%), var(--bs-danger);
}

.nav-btn.nav-btn-danger:hover:not(:disabled) {
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.15) 100%), #bb2d3b;
}

/* === Question Text (inside question box) === */
.question-text {
    font-size: 1.125rem;
    font-weight: 400;
    color: #333;
    margin: 0;
    line-height: 1.4;
    padding: 0.875rem 1rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

@media (min-width: 576px) {
    .question-text {
        font-size: 1.25rem;
        padding: 1rem 1.25rem;
    }
}

/* === Question Box Container === */
.question-box {
    background-color: #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    position: relative;
    margin-bottom: 1.5rem;
    max-width: 100%;
    overflow: hidden;
}

.question-box::before {
    content: "";
    position: absolute;
    bottom: -12px;
    left: 30px;
    border-width: 12px 12px 0 0;
    border-style: solid;
    border-color: #fff transparent transparent transparent;
}

/* === Multiple Choice Hint (inside question box) === */
.multiple-hint {
    background-color: #e6f542;
    color: #333;
    font-weight: 600;
    font-style: italic;
    padding: 0.5rem 1rem;
    margin: 0;
}

/* === Answer Options === */
.answer-option {
    display: flex;
    align-items: stretch;
    width: calc(100% - 40px);
    text-align: left;
    cursor: pointer;
    border: none;
    margin-bottom: 0.375rem;
    margin-left: 40px;
    padding: 0.75rem 1rem;
    background-color: #fff;
    font-size: 1rem;
    transition: background-color 0.15s;
    position: relative;
    min-height: 44px;
}

.answer-option::before {
    content: "";
    position: absolute;
    left: -40px;
    top: 0;
    bottom: 0;
    width: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #fff;
    font-size: 1.25rem;
    font-weight: 700;
    color: transparent;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

@media (min-width: 576px) {
    .answer-option {
        width: calc(100% - 48px);
        margin-left: 48px;
    }

    .answer-option::before {
        left: -48px;
        width: 44px;
        font-size: 1.5rem;
    }
}

.answer-option:hover {
    background-color: #f8f8f8;
}

.answer-option:focus {
    outline: 2px solid var(--bs-warning);
    outline-offset: 2px;
}

.answer-option.selected {
    background-color: var(--bs-warning);
    color: #fff;
    font-weight: 500;
}

.answer-option.selected::before {
    content: "\2713";
    background-color: var(--bs-warning);
    color: #fff;
}

.answer-option.selected:hover,
.answer-option.selected:hover::before {
    background-color: #e69b1e;
}

/* === Bottom Navigation Bar === */
.quiz-nav {
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    background-color: var(--bs-primary);
    padding: 0;
    margin: 0;
    border: none;
    box-shadow: none;
    min-height: 50px;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    /* Safe area for mobile devices with home indicator */
    padding-bottom: env(safe-area-inset-bottom, 0);
}

/* Add padding to main content to account for fixed footer */
#quiz-view {
    padding-bottom: calc(50px + env(safe-area-inset-bottom, 0));
}

.nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.1) 100%), var(--bs-info);
    border: none;
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    cursor: pointer;
    padding: 0 0.75rem;
    transition: background 0.15s;
    min-width: 0;
    min-height: 50px;
    flex-shrink: 0;
}

@media (min-width: 576px) {
    .nav-btn {
        font-size: 1rem;
        padding: 0 1.5rem;
        gap: 0.5rem;
        min-width: 120px;
    }
}

.nav-btn:hover:not(:disabled) {
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.15) 100%), #3a7bb8;
}

.nav-btn:disabled {
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.1) 100%), var(--bs-info);
    opacity: 0.5;
    cursor: not-allowed;
}

/* Push next button to right when back/progress are hidden */
.nav-btn-next {
    margin-left: auto;
}

.nav-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    color: #fff;
    background-color: var(--bs-primary);
    padding: 0 0.5rem;
    flex: 1;
    text-align: center;
    white-space: pre;
    min-width: 0;
    overflow: hidden;
}

@media (min-width: 576px) {
    .nav-progress {
        font-size: 1rem;
        padding: 0 2rem;
    }
}

/* === Footer === */
.quiz-footer {
    background-color: var(--bs-primary);
    color: #fff;
    text-align: center;
}

.quiz-footer small {
    font-size: 1rem;
}

/* === Question Image === */
.question-image {
    max-height: 50vh;
    max-width: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

@media (min-width: 992px) {
    .question-image {
        max-height: 60vh;
        max-width: 900px;
    }
}

/* === Quiz Layout === */
html, body {
    overflow-x: hidden;
    width: 100%;
}

#app-wrapper {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    width: 100%;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

#quiz-view {
    flex: 1;
    display: flex;
    flex-direction: column;
}

#quiz-view > .container-fluid {
    flex: 1;
    display: flex;
    flex-direction: column;
}

#quiz-view .row {
    flex: 1;
}

@media (min-width: 992px) {
    #quiz-view .col-lg-5 {
        display: flex;
        flex-direction: column;
    }

    #quiz-view .col-lg-5 > .flex-grow-1 {
        flex: 1;
    }
}

/* === Overview Grid === */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(44px, 1fr));
    gap: 0.5rem;
}

.overview-item {
    aspect-ratio: 1;
    padding: 0 !important;
    min-width: 44px;
    min-height: 44px;
}

/* === Ordering Question Styles === */

/* Order question layout - stack vertically */
#question-content[data-question-type="order"] .row {
    flex-direction: column;
}

#question-content[data-question-type="order"] .col-12.col-lg-7,
#question-content[data-question-type="order"] .col-12.col-lg-5 {
    width: 100%;
    max-width: 100%;
    flex: none;
}

#question-content[data-question-type="order"] .question-content-column {
    order: -1;
}

#question-content[data-question-type="order"] .question-box {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

#question-content[data-question-type="order"] .question-image-wrapper {
    display: none;
}

.order-instruction {
    display: none;
}

.hotspot-instruction {
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    background-color: var(--bs-light);
    border-left: 4px solid var(--bs-primary);
    border-radius: var(--bs-border-radius);
    color: var(--bs-secondary);
    font-style: italic;
}

.draggable-numbers {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.draggable-number,
.dropped-number {
    width: 44px;
    height: 44px;
    background: #fff;
    color: #333;
    border: 3px solid var(--bs-warning);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    cursor: grab;
    user-select: none;
    transition: transform 0.15s, background-color 0.15s;
}

.dropped-number {
    width: 48px;
    height: 48px;
    cursor: pointer;
    background: var(--bs-warning);
    color: #fff;
    border-color: var(--bs-warning);
}

.draggable-number:active,
.draggable-number.dragging {
    cursor: grabbing;
    transform: scale(1.1);
    background: var(--bs-warning);
    color: #fff;
}

.order-image-container {
    position: relative;
    max-width: 600px;
    margin: 1rem auto;
    overflow: hidden;
}

.hotspot-image-container {
    position: relative;
    max-width: 100%;
    margin: 0 auto;
    border-radius: var(--bs-border-radius-lg);
    overflow: hidden;
}

.image-drop-zone {
    position: absolute;
    width: 52px;
    height: 52px;
    border: 3px dashed rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.35);
    transform: translate(-50%, -50%);
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-drop-zone:hover,
.image-drop-zone.drag-over {
    border-color: var(--bs-warning);
    background-color: rgba(245, 166, 35, 0.4);
    transform: translate(-50%, -50%) scale(1.1);
}

.image-drop-zone.filled {
    border: none;
    background: transparent;
}

/* === Hotspot Question === */
.hotspot-question-image {
    display: block;
    width: 100%;
    height: auto;
}

.hotspot-zone {
    position: absolute;
    background-color: rgba(255, 255, 255, 0.1);
    border: 4px solid rgba(255, 255, 255, 0.6);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.15s;
    padding: 0;
    font: inherit;
    color: inherit;
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.3);
}

.hotspot-zone:hover {
    border-color: var(--bs-warning);
    background-color: rgba(245, 166, 35, 0.25);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.4), 0 0 20px rgba(245, 166, 35, 0.5);
    transform: scale(1.02);
}

.hotspot-zone:focus {
    outline: none;
    border-color: var(--bs-warning);
    background-color: rgba(245, 166, 35, 0.2);
    box-shadow: 0 0 0 4px rgba(245, 166, 35, 0.6);
}

.hotspot-zone:focus-visible {
    outline: 4px solid var(--bs-warning);
    outline-offset: 2px;
    border-color: #fff;
    background-color: rgba(245, 166, 35, 0.25);
}

.hotspot-zone.selected {
    border-color: var(--bs-info);
    border-width: 5px;
    background-color: rgba(66, 139, 202, 0.4);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.3), 0 0 25px rgba(66, 139, 202, 0.7), inset 0 0 20px rgba(66, 139, 202, 0.3);
}

/* === Hotspot Results === */
.hotspot-result-container {
    border-radius: var(--bs-border-radius-lg);
    overflow: hidden;
}

.hotspot-result-zone {
    position: absolute;
    border: 3px solid transparent;
    border-radius: 4px;
    box-sizing: border-box;
    pointer-events: none;
}

.hotspot-result-zone.correct {
    border-color: var(--bs-success);
    border-width: 4px;
    background-color: rgba(25, 135, 84, 0.25);
}

.hotspot-result-zone.incorrect {
    border-color: var(--bs-danger);
    border-width: 4px;
    background-color: rgba(220, 53, 69, 0.25);
}

.hotspot-result-label {
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1rem;
    font-weight: bold;
    padding: 2px 8px;
    border-radius: 4px;
    white-space: nowrap;
    color: #fff;
}

.hotspot-result-label.correct {
    background-color: var(--bs-success);
}

.hotspot-result-label.incorrect {
    background-color: var(--bs-danger);
}

/* === Numeric Input === */
#numeric-answer-input {
    max-width: 200px;
    font-size: 1.5rem;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.05em;
}

/* === Search Modal === */
#search-results .list-group-item {
    border: none;
    border-bottom: 1px solid var(--bs-border-color);
    padding: 0.75rem 1rem;
}

#search-results .list-group-item:last-child {
    border-bottom: none;
}

#search-results .list-group-item:hover {
    background-color: var(--bs-light);
}

#search-results .list-group-item strong {
    color: var(--bs-primary);
    margin-right: 0.5rem;
}

/* === Accessibility === */
.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10000;
    padding: 0.75rem 1.5rem;
    background: var(--bs-primary);
    color: #fff;
    border-radius: 0 0 var(--bs-border-radius-lg) var(--bs-border-radius-lg);
    text-decoration: none;
    font-weight: 600;
}

.skip-link:focus {
    top: 0;
    color: #fff;
}

.draggable-number.keyboard-selected {
    outline: 3px solid var(--bs-warning);
    outline-offset: 2px;
    transform: scale(1.1);
}

/* Touch targets (WCAG 2.5.5) */
.btn-lg,
#back-btn,
#next-btn,
#submit-btn,
#overview-back-btn,
#restart-btn {
    min-height: 44px;
}

#admin-navbar .btn-sm {
    min-height: 31px;
    min-width: auto;
}

/* Focus visible */
.btn:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible,
.list-group-item:focus-visible,
.image-drop-zone:focus-visible,
.draggable-number:focus-visible {
    outline: 3px solid var(--bs-primary);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* === Admin Toolbar === */
.admin-type-filter,
.admin-input-group {
    width: auto;
}

.admin-search-input {
    width: 150px;
}

.admin-question-select {
    width: auto;
    max-width: 300px;
}

/* === Utility Classes === */
.question-image-wrapper {
    min-height: 200px;
}

.max-w-500 { max-width: 500px; }
.max-w-600 { max-width: 600px; }
.max-w-700 { max-width: 700px; }
.max-w-800 { max-width: 800px; }

.result-image {
    max-height: 400px;
    object-fit: contain;
}

/* === SVG Icons (using sprite with currentColor) === */
.header-icon {
    fill: currentColor;
}

.timer-icon {
    fill: currentColor;
    opacity: 0.8;
}

/* === Pass/Fail Display === */
#pass-fail-container {
    padding: 1rem;
}

.pass-fail-icon {
    width: 80px;
    height: 80px;
    fill: currentColor;
}

.pass-fail-text {
    font-size: 2.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
}

@media (min-width: 768px) {
    .pass-fail-text {
        font-size: 3.5rem;
    }
}

/* === Visibility Toggles (JS) === */
.hidden-image,
.hidden-number {
    display: none !important;
}

.visible-image {
    display: block !important;
}

.visible-number {
    display: flex !important;
}

/* === Exam Selection === */
/* Minimal overrides - rely on Bootstrap btn-outline-* classes */
.exam-btn {
    min-height: 88px; /* 44px touch target x 2 for stacked content */
}