/* ==========================================================================
   SP Quiz Engine — Public Styles
   Mobile-first · BEM · Scoped under .sp-quiz
   ========================================================================== */

/* ---------- Reset & Custom Properties ---------- */

.sp-quiz {
    --_primary: var(--sp-quiz-primary, #4A6FA5);
    --_primary-rgb: var(--sp-quiz-primary-rgb, 74, 111, 165);
    --_primary-light: rgba(var(--_primary-rgb), 0.06);
    --_primary-hover: rgba(var(--_primary-rgb), 0.12);
    --_primary-focus: rgba(var(--_primary-rgb), 0.2);
    --_text: #1a1a1a;
    --_text-secondary: #444;
    --_text-muted: #777;
    --_bg: #fff;
    --_border: #e2e2e2;
    --_radius: 12px;
    --_radius-sm: 8px;
    --_transition: 300ms ease;

    position: relative;
    margin: 2rem auto;
    background: var(--_bg);
    border: 1px solid var(--_border);
    border-radius: var(--_radius);
    overflow: hidden;
    color: var(--_text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.sp-quiz *,
.sp-quiz *::before,
.sp-quiz *::after {
    box-sizing: border-box;
}

/* ---------- Screen-reader only ---------- */

.sp-quiz .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Suppress focus ring on programmatically focused headings */
.sp-quiz [tabindex="-1"]:focus {
    outline: none;
}

/* ---------- Progress Bar ---------- */

.sp-quiz__progress {
    position: sticky;
    top: 0;
    z-index: 10;
    height: 4px;
    background: rgba(var(--_primary-rgb), 0.1);
}

.sp-quiz__progress-bar {
    height: 100%;
    width: 0;
    background: var(--_primary);
    border-radius: 0 2px 2px 0;
    transition: width 400ms ease;
}

/* ---------- Screens ---------- */

.sp-quiz__screen {
    display: none;
    padding: 28px 20px 32px;
}

.sp-quiz__screen--active {
    display: block;
    animation: sp-quiz-fade-in var(--_transition) forwards;
}

.sp-quiz__screen--from-right.sp-quiz__screen--active {
    animation-name: sp-quiz-slide-right;
}

.sp-quiz__screen--from-left.sp-quiz__screen--active {
    animation-name: sp-quiz-slide-left;
}

@keyframes sp-quiz-fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes sp-quiz-slide-right {
    from { opacity: 0; transform: translateX(30px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes sp-quiz-slide-left {
    from { opacity: 0; transform: translateX(-30px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ---------- Intro Screen ---------- */

.sp-quiz__title {
    margin: 0 0 16px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--_text);
}

.sp-quiz__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 20px;
    margin-bottom: 0;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--_border);
    font-size: 14px;
    color: var(--_text-secondary);
}

.sp-quiz__meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.sp-quiz__icon {
    flex-shrink: 0;
    color: var(--_text-muted);
}

.sp-quiz__description {
    margin: 24px 0;
    padding: 20px 24px;
    background: #ffebd6;
    border-radius: var(--_radius-sm);
    font-size: 16px;
    line-height: 1.75;
    color: var(--_text-secondary);
}

.sp-quiz__description p {
    margin: 0 0 16px;
}

.sp-quiz__description p:last-child {
    margin-bottom: 0;
}

.sp-quiz__disclaimer {
    margin-bottom: 20px;
    padding: 14px 18px;
    background: #fef3c7;
    border-left: 3px solid #f59e0b;
    border-radius: 0 var(--_radius-sm) var(--_radius-sm) 0;
    font-size: 14px;
    color: #92400e;
}

.sp-quiz__citation {
    margin: 0 0 28px;
    padding-top: 20px;
    border-top: 1px solid var(--_border);
    font-size: 13px;
    line-height: 1.5;
    color: var(--_text-muted);
}

.sp-quiz__citation strong {
    font-weight: 600;
}

/* ---------- Buttons ---------- */

.sp-quiz__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 56px;
    padding: 16px 32px;
    border: 2px solid transparent;
    border-radius: var(--_radius-sm);
    font-size: 22px !important;
    font-weight: 800;
    font-family: inherit;
    cursor: pointer;
    transition: background var(--_transition), border-color var(--_transition), opacity var(--_transition);
    -webkit-tap-highlight-color: transparent;
}

.sp-quiz__btn h3 {
    margin: 0;
    padding: 0;
    font-size: inherit !important;
    font-weight: inherit;
    font-family: inherit;
    color: inherit;
    line-height: inherit;
    border: none;
}

.sp-quiz__btn:focus-visible {
    outline: 3px solid rgba(var(--_primary-rgb), 0.5);
    outline-offset: 2px;
}

.sp-quiz__btn--primary {
    width: 100%;
    background: #008558;
    color: #fff;
    border-color: #008558;
}

.sp-quiz__btn--primary:hover {
    background: #006d48;
}

.sp-quiz__btn--primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.sp-quiz__btn--secondary {
    background: transparent;
    color: var(--_text-secondary);
    border-color: var(--_border);
}

.sp-quiz__btn--secondary:hover {
    background: #f5f5f5;
    border-color: #ccc;
}

.sp-quiz__start-btn {
    margin-top: 4px;
    font-size: 20px;
    min-height: 58px;
}

/* ---------- Demographics Screen ---------- */

.sp-quiz__screen-title {
    margin: 0 0 6px;
    font-weight: 700;
    color: var(--_text);
}

.sp-quiz__screen-subtitle {
    margin: 0 0 32px;
    font-size: 15px;
    line-height: 1.6;
    color: var(--_text-muted);
}

.sp-quiz__field {
    margin-bottom: 28px;
}

.sp-quiz__field:last-of-type {
    margin-bottom: 32px;
}

.sp-quiz__field-label {
    margin-bottom: 4px;
    font-size: 16px;
    font-weight: 600;
    color: var(--_text);
}

.sp-quiz__field-rationale {
    margin-bottom: 12px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--_text-muted);
}

.sp-quiz__pills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.sp-quiz__pill {
    padding: 10px 18px;
    background: var(--_bg);
    border: 1.5px solid var(--_border);
    border-radius: 100px;
    font-size: 14px;
    font-family: inherit;
    color: var(--_text-secondary);
    cursor: pointer;
    transition: all 200ms ease;
    -webkit-tap-highlight-color: transparent;
}

.sp-quiz__pill:hover {
    border-color: var(--_primary);
    color: var(--_primary);
    background: var(--_primary-light);
}

.sp-quiz__pill:focus-visible {
    outline: 3px solid rgba(var(--_primary-rgb), 0.5);
    outline-offset: 2px;
}

.sp-quiz__pill--selected {
    background: var(--_primary-light);
    border-color: var(--_primary);
    color: var(--_primary);
    font-weight: 600;
}

.sp-quiz__demographics-continue-btn {
    margin-top: 4px;
}

.sp-quiz__skip-btn {
    display: block;
    width: 100%;
    margin-top: 12px;
    padding: 8px;
    background: none;
    border: none;
    font-size: 14px;
    font-family: inherit;
    color: var(--_text-muted);
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.sp-quiz__skip-btn:hover {
    color: var(--_text-secondary);
}

/* ---------- Question Screen ---------- */

.sp-quiz__question-header {
    margin-bottom: 12px;
}

.sp-quiz__question-number {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--_primary);
}

.sp-quiz__question-text {
    margin: 0 0 24px;
    font-size: 19px;
    font-weight: 500;
    line-height: 1.5;
    color: var(--_text);
}

.sp-quiz__options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 28px;
}

.sp-quiz__option {
    display: flex;
    align-items: center;
    width: 100%;
    min-height: 50px;
    padding: 13px 18px;
    background: var(--_bg);
    border: 1.5px solid var(--_border);
    border-radius: var(--_radius-sm);
    font-size: 15px;
    font-family: inherit;
    color: var(--_text);
    text-align: left;
    cursor: pointer;
    transition: all 200ms ease;
    -webkit-tap-highlight-color: transparent;
}

/* Colored Likert indicator dot */
.sp-quiz__option::before {
    content: '';
    flex-shrink: 0;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    margin-right: 14px;
    opacity: 0.4;
    transition: opacity 200ms ease, transform 200ms ease, box-shadow 200ms ease;
}

/* Disagree–Neutral–Agree colour gradient (supports up to 7-point scales) */
.sp-quiz__option[data-index="0"]::before { background: #ef4444; }
.sp-quiz__option[data-index="1"]::before { background: #f97316; }
.sp-quiz__option[data-index="2"]::before { background: #f59e0b; }
.sp-quiz__option[data-index="3"]::before { background: #9ca3af; }
.sp-quiz__option[data-index="4"]::before { background: #84cc16; }
.sp-quiz__option[data-index="5"]::before { background: #22c55e; }
.sp-quiz__option[data-index="6"]::before { background: #16a34a; }

.sp-quiz__option:hover::before {
    opacity: 0.75;
    transform: scale(1.1);
}

.sp-quiz__option:hover {
    border-color: var(--_border);
    background: #fafafa;
}

/* Colour-matched hover borders */
.sp-quiz__option[data-index="0"]:hover { border-color: rgba(239, 68, 68, 0.4); }
.sp-quiz__option[data-index="1"]:hover { border-color: rgba(249, 115, 22, 0.4); }
.sp-quiz__option[data-index="2"]:hover { border-color: rgba(245, 158, 11, 0.4); }
.sp-quiz__option[data-index="3"]:hover { border-color: rgba(156, 163, 175, 0.5); }
.sp-quiz__option[data-index="4"]:hover { border-color: rgba(132, 204, 22, 0.5); }
.sp-quiz__option[data-index="5"]:hover { border-color: rgba(34, 197, 94, 0.5); }
.sp-quiz__option[data-index="6"]:hover { border-color: rgba(22, 163, 74, 0.5); }

.sp-quiz__option:focus-visible {
    outline: 3px solid rgba(var(--_primary-rgb), 0.5);
    outline-offset: 2px;
}

/* Selected state — vivid dot + colour-matched border */
.sp-quiz__option--selected::before {
    opacity: 1;
    transform: scale(1.15);
}

.sp-quiz__option--selected {
    font-weight: 600;
    background: var(--_bg);
}

.sp-quiz__option--selected[data-index="0"] { border-color: #ef4444; color: #dc2626; background: rgba(239, 68, 68, 0.06); }
.sp-quiz__option--selected[data-index="1"] { border-color: #f97316; color: #ea580c; background: rgba(249, 115, 22, 0.06); }
.sp-quiz__option--selected[data-index="2"] { border-color: #f59e0b; color: #d97706; background: rgba(245, 158, 11, 0.06); }
.sp-quiz__option--selected[data-index="3"] { border-color: #9ca3af; color: #6b7280; background: rgba(156, 163, 175, 0.08); }
.sp-quiz__option--selected[data-index="4"] { border-color: #84cc16; color: #65a30d; background: rgba(132, 204, 22, 0.06); }
.sp-quiz__option--selected[data-index="5"] { border-color: #22c55e; color: #16a34a; background: rgba(34, 197, 94, 0.06); }
.sp-quiz__option--selected[data-index="6"] { border-color: #16a34a; color: #15803d; background: rgba(22, 163, 74, 0.06); }

/* ---------- Question Navigation ---------- */

.sp-quiz__nav {
    display: flex;
    gap: 12px;
}

.sp-quiz__prev-btn {
    flex: 0 0 auto;
    min-width: 90px;
}

.sp-quiz__next-btn {
    flex: 1;
}

/* ---------- Email Gate Screen ---------- */

.sp-quiz__email-gate {
    text-align: center;
}

.sp-quiz__email-icon {
    display: block;
    margin: 0 auto 16px;
    color: var(--_primary);
}

.sp-quiz__email-gate .sp-quiz__screen-title {
    margin-bottom: 8px;
}

.sp-quiz__email-gate .sp-quiz__screen-subtitle {
    margin-bottom: 28px;
    max-width: 440px;
    margin-left: auto;
    margin-right: auto;
}

.sp-quiz__email-field {
    margin-bottom: 16px;
    text-align: left;
}

.sp-quiz__email-input {
    display: block;
    width: 100%;
    min-height: 50px;
    padding: 13px 18px;
    border: 1.5px solid var(--_border);
    border-radius: var(--_radius-sm);
    font-size: 16px;
    font-family: inherit;
    color: var(--_text);
    background: var(--_bg);
    transition: border-color 200ms ease;
    -webkit-appearance: none;
}

.sp-quiz__email-input:focus {
    outline: none;
    border-color: var(--_primary);
    box-shadow: 0 0 0 3px rgba(var(--_primary-rgb), 0.15);
}

.sp-quiz__email-input--invalid {
    border-color: #dc2626;
}

.sp-quiz__email-input--invalid:focus {
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}

.sp-quiz__email-error {
    margin: 6px 0 0;
    font-size: 13px;
    color: #dc2626;
}

.sp-quiz__email-submit-btn {
    margin-top: 4px;
}

.sp-quiz__email-skip-btn {
    margin-top: 12px;
}

.sp-quiz__email-privacy {
    margin: 16px 0 0;
    font-size: 12px;
    color: var(--_text-muted);
}

/* ---------- Loading Screen ---------- */

.sp-quiz__loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 20px;
    text-align: center;
    color: var(--_text-secondary);
}

.sp-quiz__spinner {
    width: 40px;
    height: 40px;
    margin-bottom: 16px;
    border: 3px solid rgba(var(--_primary-rgb), 0.2);
    border-top-color: var(--_primary);
    border-radius: 50%;
    animation: sp-quiz-spin 0.8s linear infinite;
}

@keyframes sp-quiz-spin {
    to { transform: rotate(360deg); }
}

/* ---------- Results Screen ---------- */

.sp-quiz__result-header {
    text-align: center;
    margin-bottom: 32px;
}

.sp-quiz__result-title {
    margin: 0 0 6px;
    font-weight: 700;
    color: var(--_primary);
    line-height: 1.3;
}

.sp-quiz__result-condition {
    margin: 0 0 14px;
    font-size: 14px;
    font-weight: 600;
    text-transform: capitalize;
    color: var(--_text-muted);
}

.sp-quiz__result-summary {
    margin: 0;
    font-size: 16px;
    line-height: 1.7;
    color: var(--_text-secondary);
}

/* ---------- Subscale Bars ---------- */

.sp-quiz__subscales {
    margin-bottom: 32px;
}

.sp-quiz__subscale {
    margin-bottom: 18px;
}

.sp-quiz__subscale:last-child {
    margin-bottom: 0;
}

.sp-quiz__subscale-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 8px;
}

.sp-quiz__subscale-label {
    font-size: 15px;
    font-weight: 600;
    color: var(--_text);
}

.sp-quiz__subscale-score {
    font-size: 15px;
    font-weight: 600;
    color: var(--_primary);
}

.sp-quiz__subscale-bar-track {
    height: 10px;
    background: rgba(var(--_primary-rgb), 0.1);
    border-radius: 5px;
    overflow: hidden;
}

.sp-quiz__subscale-bar-fill {
    height: 100%;
    width: 0;
    background: var(--_primary);
    border-radius: 5px;
    transition: width 800ms ease;
}

/* ---------- Percentiles ---------- */

.sp-quiz__percentiles {
    margin-bottom: 32px;
    padding: 20px 24px;
    background: var(--_primary-light);
    border-radius: var(--_radius-sm);
}

.sp-quiz__percentile-group {
    margin-bottom: 14px;
}

.sp-quiz__percentile-group:last-child {
    margin-bottom: 0;
}

.sp-quiz__percentile-group-label {
    margin: 0 0 4px;
    font-size: 13px;
    font-weight: 600;
    text-transform: capitalize;
    color: var(--_text-muted);
}

.sp-quiz__percentile-item {
    margin: 0 0 2px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--_text);
}

.sp-quiz__percentile-item strong {
    color: var(--_primary);
}

/* ---------- Result Sections ---------- */

.sp-quiz__result-section {
    margin-bottom: 28px;
}

.sp-quiz__result-section-title {
    margin: 0 0 10px;
    font-weight: 700;
    color: var(--_text);
}

.sp-quiz__result-section p {
    margin: 0;
    font-size: 15px;
    line-height: 1.75;
    color: var(--_text-secondary);
}

.sp-quiz__result-context {
    padding: 20px 24px;
    background: var(--_primary-light);
    border-left: 3px solid var(--_primary);
    border-radius: 0 var(--_radius-sm) var(--_radius-sm) 0;
}

/* ---------- Affiliate Links ---------- */

.sp-quiz__affiliate-links {
    margin-bottom: 28px;
}

.sp-quiz__affiliate-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 20px;
    margin-bottom: 10px;
    background: var(--_primary-light);
    border: 1.5px solid rgba(var(--_primary-rgb), 0.2);
    border-radius: var(--_radius-sm);
    color: var(--_primary);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 200ms ease;
}

.sp-quiz__affiliate-link:hover {
    background: var(--_primary-hover);
    border-color: var(--_primary);
}

.sp-quiz__affiliate-link:last-child {
    margin-bottom: 0;
}

.sp-quiz__affiliate-link-text {
    flex: 1;
}

/* ---------- Related Articles ---------- */

.sp-quiz__related-articles {
    margin-bottom: 32px;
}

.sp-quiz__related-link {
    display: block;
    padding: 12px 0;
    font-size: 15px;
    color: var(--_primary);
    text-decoration: none;
    border-bottom: 1px solid var(--_border);
}

.sp-quiz__related-link:first-of-type {
    border-top: 1px solid var(--_border);
}

.sp-quiz__related-link:hover {
    color: var(--_text);
}

/* ---------- Quadrant Diagram ---------- */

.sp-quiz__quadrant {
    margin-bottom: 32px;
}

.sp-quiz__quadrant-svg {
    display: block;
    width: 100%;
    max-width: 360px;
    margin: 0 auto;
    height: auto;
}

.sp-quiz__quadrant-bg {
    fill: rgba(var(--_primary-rgb), 0.03);
    stroke: none;
}

.sp-quiz__quadrant-bg--active {
    fill: rgba(var(--_primary-rgb), 0.1);
}

.sp-quiz__quadrant-line {
    stroke: var(--_border);
    stroke-width: 1;
    stroke-dasharray: 4 3;
}

.sp-quiz__quadrant-label {
    font-size: 11px;
    font-weight: 500;
    fill: var(--_text-muted);
}

.sp-quiz__quadrant-label--active {
    font-size: 12px;
    font-weight: 700;
    fill: var(--_primary);
}

.sp-quiz__quadrant-axis {
    font-size: 10px;
    font-weight: 600;
    fill: var(--_text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sp-quiz__quadrant-dot {
    fill: var(--_primary);
    stroke: #fff;
    stroke-width: 2;
}

.sp-quiz__quadrant-dot-pulse {
    fill: var(--_primary);
    opacity: 0;
    animation: sp-quiz-dot-pulse 2s ease-out 0.5s 1 forwards;
}

@keyframes sp-quiz-dot-pulse {
    0%   { r: 7;  opacity: 0.5; }
    100% { r: 18; opacity: 0; }
}

.sp-quiz__quadrant-score {
    font-size: 10px;
    font-weight: 600;
    fill: var(--_text);
}

/* ---------- Share Buttons ---------- */

.sp-quiz__share {
    margin-bottom: 32px;
}

.sp-quiz__share-buttons {
    display: flex;
    gap: 10px;
}

.sp-quiz__share-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    justify-content: center;
    min-height: 44px;
    padding: 10px 14px;
    border: 1.5px solid var(--_border);
    border-radius: var(--_radius-sm);
    background: var(--_bg);
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    color: var(--_text-secondary);
    text-decoration: none;
    cursor: pointer;
    transition: all 200ms ease;
    -webkit-tap-highlight-color: transparent;
}

.sp-quiz__share-btn:hover {
    border-color: var(--_primary);
    color: var(--_primary);
    background: var(--_primary-light);
}

.sp-quiz__share-btn:focus-visible {
    outline: 3px solid rgba(var(--_primary-rgb), 0.5);
    outline-offset: 2px;
}

.sp-quiz__share-btn--twitter:hover {
    border-color: #1da1f2;
    color: #1da1f2;
    background: rgba(29, 161, 242, 0.06);
}

.sp-quiz__share-btn--facebook:hover {
    border-color: #1877f2;
    color: #1877f2;
    background: rgba(24, 119, 242, 0.06);
}

/* ---------- Retake Button ---------- */

.sp-quiz__retake-btn {
    width: 100%;
    margin-top: 8px;
}

/* ---------- Error State ---------- */

.sp-quiz__error {
    text-align: center;
    padding: 32px 0;
    color: var(--_text-secondary);
}

.sp-quiz__error p {
    margin: 0 0 20px;
    font-size: 15px;
    line-height: 1.6;
}

/* ---------- Standalone Page ---------- */

.sp-quiz-standalone .inside-article {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

.sp-quiz-standalone-page .site-content {
    padding-top: 0;
}

/* ---------- Small screens (max-width: 400px) ---------- */

@media (max-width: 400px) {
    .sp-quiz__screen {
        padding: 20px 16px 24px;
    }

    .sp-quiz__share-buttons {
        flex-direction: column;
    }

    .sp-quiz__share-btn {
        flex: none;
        width: 100%;
    }

    .sp-quiz__nav {
        flex-direction: column-reverse;
    }

    .sp-quiz__prev-btn {
        min-width: auto;
        width: 100%;
    }
}

/* ---------- Desktop (min-width: 640px) ---------- */

@media (min-width: 640px) {
    .sp-quiz__screen {
        padding: 40px 48px 44px;
    }

    .sp-quiz__question-text {
        font-size: 21px;
    }

    .sp-quiz__option {
        padding: 14px 20px;
    }

    .sp-quiz-standalone .inside-article {
        padding: 60px 40px;
    }
}

/* ==========================================================================
   Step-based Question Layout (5 questions per screen)
   ========================================================================== */

/* ---------- Step Header ---------- */

.sp-quiz__step-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 10px;
    font-size: 14px;
}

.sp-quiz__step-percent {
    font-weight: 600;
    color: var(--_text-secondary);
}

.sp-quiz__step-counter {
    font-weight: 600;
    color: var(--_text-secondary);
}

/* ---------- Step Progress Bar ---------- */

.sp-quiz__step-progress {
    height: 8px;
    background: #e5e7eb;
    border-radius: 4px;
    margin-bottom: 28px;
    overflow: hidden;
}

.sp-quiz__step-progress--bottom {
    margin-top: 24px;
    margin-bottom: 20px;
}

.sp-quiz__step-progress-bar {
    height: 100%;
    width: 0;
    background: #008558;
    border-radius: 4px;
    transition: width 400ms ease;
}

/* ---------- Step Instruction ---------- */

.sp-quiz__step-instruction {
    margin: 0 0 24px;
    font-size: 20px;
    font-weight: 800;
    text-align: center;
    color: var(--_text);
}

/* ---------- Likert Legend ---------- */

.sp-quiz__likert-legend {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 32px;
}

.sp-quiz__likert-legend-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    min-width: 56px;
}

.sp-quiz__likert-legend-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--_text-secondary);
    text-align: center;
    line-height: 1.3;
}

.sp-quiz__likert-circle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid transparent;
    font-size: 14px;
    font-weight: 700;
    color: rgba(0, 0, 0, 0.55);
}

.sp-quiz__likert-circle--0 { background: #fecaca; border-color: #f87171; }
.sp-quiz__likert-circle--1 { background: #fed7aa; border-color: #fb923c; }
.sp-quiz__likert-circle--2 { background: #fde68a; border-color: #fbbf24; }
.sp-quiz__likert-circle--3 { background: #e5e7eb; border-color: #d1d5db; }
.sp-quiz__likert-circle--4 { background: #dcfce7; border-color: #86efac; }
.sp-quiz__likert-circle--5 { background: #86efac; border-color: #22c55e; }
.sp-quiz__likert-circle--6 { background: #22c55e; border-color: #16a34a; color: #fff; }

/* ---------- Question Card ---------- */

.sp-quiz__question-card {
    margin-bottom: 16px;
    padding: 24px;
    background: #fafafa;
    border: 1px solid var(--_border);
    border-radius: var(--_radius);
}

.sp-quiz__question-card:last-of-type {
    margin-bottom: 0;
}

.sp-quiz__question-card-text {
    margin: 0 0 20px;
    font-size: 18px;
    font-weight: 400;
    text-align: center;
    line-height: 1.5;
    color: var(--_text);
}

/* ---------- Likert Circle Buttons ---------- */

.sp-quiz__likert-options {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.sp-quiz__likert-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2.5px solid transparent;
    cursor: pointer;
    transition: all 200ms ease;
    -webkit-tap-highlight-color: transparent;
    padding: 0;
    background: transparent;
    flex-shrink: 0;
}

/* Tick mark on selected circle */
.sp-quiz__likert-btn--selected::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 16px;
    border: solid #000;
    border-width: 0 3px 3px 0;
    transform: translate(-50%, -58%) rotate(45deg);
}

.sp-quiz__likert-btn:focus-visible {
    outline: 3px solid rgba(var(--_primary-rgb), 0.5);
    outline-offset: 2px;
}

/* Default state colours (7-point scale) */
.sp-quiz__likert-btn--0 { background: #fecaca; border-color: #fca5a5; }
.sp-quiz__likert-btn--1 { background: #fed7aa; border-color: #fdba74; }
.sp-quiz__likert-btn--2 { background: #fde68a; border-color: #fcd34d; }
.sp-quiz__likert-btn--3 { background: #e5e7eb; border-color: #d1d5db; }
.sp-quiz__likert-btn--4 { background: #dcfce7; border-color: #bbf7d0; }
.sp-quiz__likert-btn--5 { background: #86efac; border-color: #4ade80; }
.sp-quiz__likert-btn--6 { background: #22c55e; border-color: #16a34a; }

/* Hover state */
.sp-quiz__likert-btn--0:hover { background: #fca5a5; border-color: #f87171; }
.sp-quiz__likert-btn--1:hover { background: #fdba74; border-color: #fb923c; }
.sp-quiz__likert-btn--2:hover { background: #fcd34d; border-color: #fbbf24; }
.sp-quiz__likert-btn--3:hover { background: #d1d5db; border-color: #9ca3af; }
.sp-quiz__likert-btn--4:hover { background: #bbf7d0; border-color: #86efac; }
.sp-quiz__likert-btn--5:hover { background: #4ade80; border-color: #22c55e; }
.sp-quiz__likert-btn--6:hover { background: #16a34a; border-color: #15803d; }

/* Selected state */
.sp-quiz__likert-btn--selected.sp-quiz__likert-btn--0 { background: #f87171; border-color: #ef4444; box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2); }
.sp-quiz__likert-btn--selected.sp-quiz__likert-btn--1 { background: #fb923c; border-color: #f97316; box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.2); }
.sp-quiz__likert-btn--selected.sp-quiz__likert-btn--2 { background: #fbbf24; border-color: #f59e0b; box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2); }
.sp-quiz__likert-btn--selected.sp-quiz__likert-btn--3 { background: #9ca3af; border-color: #6b7280; box-shadow: 0 0 0 3px rgba(107, 114, 128, 0.2); }
.sp-quiz__likert-btn--selected.sp-quiz__likert-btn--4 { background: #86efac; border-color: #4ade80; box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.2); }
.sp-quiz__likert-btn--selected.sp-quiz__likert-btn--5 { background: #22c55e; border-color: #16a34a; box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2); }
.sp-quiz__likert-btn--selected.sp-quiz__likert-btn--6 { background: #15803d; border-color: #166534; box-shadow: 0 0 0 3px rgba(22, 101, 52, 0.2); }

/* Number inside circle buttons (shown on desktop, hidden on mobile) */
.sp-quiz__likert-btn-number {
    font-size: 15px;
    font-weight: 700;
    color: rgba(0, 0, 0, 0.5);
    line-height: 1;
    pointer-events: none;
}

/* Hide number when selected (tick mark replaces it) */
.sp-quiz__likert-btn--selected .sp-quiz__likert-btn-number {
    opacity: 0;
}

/* Label text inside buttons (hidden on desktop, shown on mobile) */
.sp-quiz__likert-btn-label {
    display: none;
}

/* Mobile question counter (hidden on desktop) */
.sp-quiz__mobile-q-counter {
    display: none;
    text-align: center;
    font-size: 16px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--_text-secondary);
    margin-bottom: 20px;
}

/* ---------- Step Validation ---------- */

.sp-quiz__step-validation {
    margin: 24px 0 0;
    font-size: 14px;
    color: var(--_text-muted);
    text-align: center;
}

/* ---------- Step Layout: Mobile — one question at a time ---------- */

@media (max-width: 639px) {

    /* Hide desktop legend; show mobile counter */
    .sp-quiz__likert-legend { display: none; }
    .sp-quiz__mobile-q-counter { display: block; }

    /* Show only the active question card */
    .sp-quiz__question-card { display: none; margin-bottom: 0; padding: 0; background: transparent; border: none; }
    .sp-quiz__question-card--active { display: block; }

    /* Question text */
    .sp-quiz__question-card-text {
        font-size: 19px;
        font-weight: 500;
        margin-bottom: 24px;
    }

    /* Vertical option list */
    .sp-quiz__likert-options {
        flex-direction: column;
        gap: 10px;
    }

    /* Transform circles into full-width option buttons */
    .sp-quiz__likert-btn {
        position: relative;
        width: 100%;
        height: auto;
        min-height: 50px;
        border-radius: var(--_radius-sm);
        border: 1.5px solid var(--_border);
        padding: 13px 18px;
        display: flex;
        align-items: center;
        gap: 14px;
        text-align: left;
        font-size: 15px;
        font-family: inherit;
        color: var(--_text);
    }

    /* Colour-coded button backgrounds (no dot) */
    .sp-quiz__likert-btn--0 { background: #fecaca; border-color: #fca5a5; box-shadow: none; }
    .sp-quiz__likert-btn--1 { background: #fed7aa; border-color: #fdba74; box-shadow: none; }
    .sp-quiz__likert-btn--2 { background: #fde68a; border-color: #fcd34d; box-shadow: none; }
    .sp-quiz__likert-btn--3 { background: #e5e7eb; border-color: #d1d5db; box-shadow: none; }
    .sp-quiz__likert-btn--4 { background: #dcfce7; border-color: #bbf7d0; box-shadow: none; }
    .sp-quiz__likert-btn--5 { background: #86efac; border-color: #4ade80; box-shadow: none; }
    .sp-quiz__likert-btn--6 { background: #22c55e; border-color: #16a34a; color: #fff; box-shadow: none; }

    /* Show label text, hide number and dot */
    .sp-quiz__likert-btn-label { display: inline; }
    .sp-quiz__likert-btn-number { display: none; }
    .sp-quiz__likert-btn::before { display: none; }

    /* Hover — darken slightly */
    .sp-quiz__likert-btn--0:hover { background: #fca5a5; border-color: #f87171; }
    .sp-quiz__likert-btn--1:hover { background: #fdba74; border-color: #fb923c; }
    .sp-quiz__likert-btn--2:hover { background: #fcd34d; border-color: #fbbf24; }
    .sp-quiz__likert-btn--3:hover { background: #d1d5db; border-color: #9ca3af; }
    .sp-quiz__likert-btn--4:hover { background: #bbf7d0; border-color: #86efac; }
    .sp-quiz__likert-btn--5:hover { background: #4ade80; border-color: #22c55e; }
    .sp-quiz__likert-btn--6:hover { background: #16a34a; border-color: #15803d; }

    /* Hide desktop tick on mobile */
    .sp-quiz__likert-btn--selected::after { display: none; }

    /* Selected — deeper colour + bold */
    .sp-quiz__likert-btn--selected { font-weight: 700; }
    .sp-quiz__likert-btn--selected.sp-quiz__likert-btn--0 { background: #f87171; border-color: #ef4444; color: #fff; box-shadow: none; }
    .sp-quiz__likert-btn--selected.sp-quiz__likert-btn--1 { background: #fb923c; border-color: #f97316; color: #fff; box-shadow: none; }
    .sp-quiz__likert-btn--selected.sp-quiz__likert-btn--2 { background: #fbbf24; border-color: #f59e0b; color: #fff; box-shadow: none; }
    .sp-quiz__likert-btn--selected.sp-quiz__likert-btn--3 { background: #9ca3af; border-color: #6b7280; color: #fff; box-shadow: none; }
    .sp-quiz__likert-btn--selected.sp-quiz__likert-btn--4 { background: #86efac; border-color: #4ade80; color: #fff; box-shadow: none; }
    .sp-quiz__likert-btn--selected.sp-quiz__likert-btn--5 { background: #22c55e; border-color: #16a34a; color: #fff; box-shadow: none; }
    .sp-quiz__likert-btn--selected.sp-quiz__likert-btn--6 { background: #15803d; border-color: #166534; color: #fff; box-shadow: none; }

    /* Slide-in transition for question cards */
    .sp-quiz__question-card--active {
        animation: sp-quiz-slide-in 300ms ease both;
    }

    /* Hide instruction after first question */
    .sp-quiz__step-instruction--hidden { display: none; }

    /* Hide validation + Next button (auto-advance handles flow) */
    .sp-quiz__step-validation { display: none; }
    .sp-quiz__next-btn { display: none; }
}

@keyframes sp-quiz-slide-in {
    from { opacity: 0; transform: translateX(30px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ---------- Step Layout: Desktop ---------- */

@media (min-width: 640px) {
    .sp-quiz__step-instruction {
        font-size: 22px;
    }

    .sp-quiz__question-card-text {
        font-size: 19px;
    }

    .sp-quiz__likert-btn {
        width: 48px;
        height: 48px;
    }

    .sp-quiz__likert-options {
        gap: 24px;
    }

    .sp-quiz__likert-circle {
        width: 40px;
        height: 40px;
    }
}