/* ==========================================================================
   Quiz card (shared shell for intro / question / results screens)
   ========================================================================== */

.quiz-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
}

.quiz-card h1 {
    font-size: 28px;
    color: var(--color-heading);
    margin-bottom: 12px;
}

.quiz-card h2 {
    font-size: 22px;
    color: var(--color-heading);
    margin-bottom: 20px;
}

/* Intro screen */

.quiz-intro {
    text-align: center;
}

.quiz-description {
    color: var(--color-muted);
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 8px;
}

.quiz-instructions {
    color: var(--color-subtle);
    font-size: 14px;
    font-style: italic;
    margin-bottom: 16px;
}

.quiz-meta {
    color: var(--color-subtle);
    font-size: 13px;
    margin-bottom: 26px;
}

/* ==========================================================================
   Progress bar
   ========================================================================== */

.quiz-progress {
    width: 100%;
    height: 6px;
    background: var(--color-track);
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 20px;
}

.quiz-progress-bar {
    height: 100%;
    background: var(--color-primary);
    border-radius: 20px;
    transition: width 0.3s ease;
}

.quiz-step {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 12px;

    font-size: 13px;
    color: var(--color-subtle);
    margin-bottom: 14px;
}

/* Skill label next to the question number ("Grammar", "Reading"). */
.quiz-skill {
    padding: 2px 10px;
    border-radius: 999px;
    background: var(--color-primary-soft);
    color: var(--color-primary-dark);
    font-size: 12px;
    font-weight: 700;
}

/* Reading text that stays on screen while its questions are answered. */
.quiz-passage {
    margin-bottom: var(--space-md);
    padding: var(--space-md);

    background: var(--color-page-bg);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-md);

    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text);
}

.quiz-passage h3 {
    margin-bottom: 12px;
    font-size: 16px;
    line-height: 1.4;
    color: var(--color-heading);
}

.quiz-passage p + p {
    margin-top: 12px;
}

/* ==========================================================================
   Question + options
   ========================================================================== */

.quiz-question {
    font-size: 20px;
    color: var(--color-heading-alt);
    margin-bottom: 24px;
    line-height: 1.4;
}

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

.quiz-option {
    width: 100%;
    text-align: left;
    padding: 14px 18px;

    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);

    font-family: inherit;
    font-size: 15px;
    color: var(--color-text);
    cursor: pointer;

    transition: var(--transition);
}

/* hover only where a real pointer exists (no sticky hover on touch) */
@media (hover: hover) {
    .quiz-option:hover {
        border-color: var(--color-primary-light);
        background: var(--color-primary-soft);
    }
}


.quiz-option.selected {
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
    color: var(--color-primary);
    font-weight: 600;
}

/* ==========================================================================
   Navigation buttons
   ========================================================================== */

.quiz-nav {
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.quiz-btn {
    flex: 1;
    padding: 13px 20px;

    border: none;
    border-radius: var(--radius-md);

    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    cursor: pointer;

    /* "Chunky" bottom edge; a variant sets --btn-shadow to its darker tone. */
    --btn-shadow: transparent;
    box-shadow: 0 4px 0 var(--btn-shadow);

    transition: var(--transition);
}

/* hover only where a real pointer exists (no sticky hover on touch) */
@media (hover: hover) {
    .quiz-btn:hover:not(:disabled) {
        filter: brightness(1.07);
    }
}


/* Pressed: the button sinks into its own shadow. */
.quiz-btn:active:not(:disabled) {
    transform: translateY(3px);
    box-shadow: 0 1px 0 var(--btn-shadow);
}

.quiz-btn:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

/* Headings that only the script focuses (tabindex="-1": each new question, the results title; QuizEngine.focusIn):
   no ring after a tap or a click; the keyboard still shows it. */
.quiz-question:focus:not(:focus-visible),
.quiz-part-title:focus:not(:focus-visible),
.quiz-results-title:focus:not(:focus-visible) { outline: none; }

.quiz-btn-primary {
    --btn-shadow: var(--color-primary-dark);
    background: var(--color-primary);
    color: var(--color-bg);
}

.quiz-btn-primary:disabled {
    --btn-shadow: transparent;
    background: var(--color-border);
    color: var(--color-subtle);
    cursor: not-allowed;
}

.quiz-btn-secondary {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-label);
}

/* hover only where a real pointer exists (no sticky hover on touch) */
@media (hover: hover) {
    .quiz-btn-secondary:hover {
        border-color: var(--color-primary-light);
    }
}


.quiz-btn-secondary:disabled {
    color: var(--color-subtle);
    cursor: not-allowed;
}

/* ==========================================================================
   Results screen
   ========================================================================== */

.quiz-interpretation {
    font-size: 13px;
    color: var(--color-subtle);
    margin-top: 6px;
}

.quiz-disclaimer {
    margin-top: 26px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border-light);

    font-size: 13px;
    line-height: 1.6;
    color: var(--color-subtle);
    text-align: center;
}

/* ==========================================================================
   Reminder: the test can be left and resumed.
   A quiet caption below the quiz card (outside it, so it does not compete with the question).
   ========================================================================== */

.quiz-resume-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin: var(--space-md) auto 0;
    padding: 0 var(--space-sm);

    color: var(--color-label);
    font-size: 13px;
    line-height: 1.5;
    text-align: center;
}

.quiz-resume-note .ti {
    flex-shrink: 0;
    margin-right: 0;
    color: var(--color-primary);
    font-size: 16px;
}

/* Warning about something that limits the test (for example, a device without an English voice) */
.quiz-notice {
    margin: 0 0 16px;
    padding: 8px 12px;

    background: var(--color-highlight-soft);
    border-radius: var(--radius-md);
    color: var(--color-highlight-dark);
    font-size: 13px;
    line-height: 1.5;
}

/* ==========================================================================
   Adaptive test (js/tests/adaptive-engine.js): listening player
   ========================================================================== */

.quiz-listen {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 14px;
    margin-bottom: 8px;
}

.quiz-listen .quiz-btn {
    margin: 0;
    min-height: 44px;
}

.quiz-listen .ti {
    margin-right: 4px;
}

.quiz-plays {
    font-size: 13px;
    color: var(--color-label);
}

/* ==========================================================================
   Adaptive test: results, review of mistakes, method and references
   ========================================================================== */

.quiz-overall {
    margin-bottom: var(--space-md);
    padding: var(--space-md);
    text-align: center;

    background: var(--color-primary-soft);
    border-radius: var(--radius-md);
}

.quiz-overall-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-label);
}

.quiz-overall-level {
    margin: 4px 0;
    font-size: 44px;
    font-weight: 800;
    line-height: 1.1;
    color: var(--color-primary-dark);
}

.quiz-overall-percent {
    font-size: 14px;
    color: var(--color-label);
}

.quiz-overall .quiz-interpretation {
    margin-top: 10px;
    color: var(--color-heading-alt);
    font-size: 14px;
}

.quiz-level-pill {
    display: inline-block;
    margin-right: 8px;
    padding: 1px 10px;

    background: var(--color-primary-soft);
    border-radius: 999px;
    color: var(--color-primary-dark);
    font-size: 12px;
}

.result-item.is-skipped .quiz-interpretation {
    margin-top: 0;
}

/* Review of the incorrect answers: a heading with the count, and the list always open (every test) */
.quiz-review {
    margin-top: var(--space-md);
}

.quiz-review-title {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 18px;
    color: var(--color-heading-alt);
}

.quiz-review .ti {
    margin-right: 4px;
}

.quiz-review-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

.review-item {
    padding: var(--space-md);

    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 14px;
    line-height: 1.6;
}

.review-meta {
    font-size: 12px;
    font-weight: 700;
    color: var(--color-primary-dark);
}

.review-question {
    margin: 4px 0 8px;
    font-size: 16px;
    line-height: 1.4;
    color: var(--color-heading-alt);
}

.review-context {
    margin-bottom: 6px;
    font-size: 13px;
    color: var(--color-label);
}

.review-answer {
    display: flex;
    align-items: flex-start;
    gap: 6px;
    margin: 2px 0;
    font-weight: 600;
}

.review-answer .ti {
    flex-shrink: 0;
    margin-right: 0;
    margin-top: 3px;
}

.review-wrong { color: var(--color-error); }
.review-right { color: var(--color-success); }

.review-explanation {
    margin-top: 10px;
    padding: 8px 12px;

    background: var(--color-page-bg);
    border-left: 3px solid var(--color-accent);
    border-radius: 6px;
    color: var(--color-text);
    font-size: 14px;
}

.quiz-review-empty {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: var(--space-md);
    color: var(--color-success);
    font-weight: 600;
}

.quiz-review-empty .ti {
    margin-right: 0;
}

/* How the level is measured, and the references behind it */
.quiz-method {
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border-light);

    font-size: 13px;
    line-height: 1.6;
    color: var(--color-label);
}

.quiz-method h3 {
    margin: 14px 0 6px;
    font-size: 15px;
    color: var(--color-heading);
}

.quiz-method h3:first-child {
    margin-top: 0;
}

.quiz-method ul {
    padding-left: 18px;
}

.quiz-method li + li {
    margin-top: 4px;
}

.quiz-method .quiz-references {
    padding-left: 0;
    list-style: none;
}

.quiz-references li + li {
    margin-top: 10px;
}

.reference-note {
    margin-bottom: 10px;
    font-style: italic;
}

.reference-use {
    display: block;
}

.quiz-method a {
    color: var(--color-primary-dark);
    font-weight: 600;
    text-decoration: underline;
}

/* Text only for screen readers */
.quiz-sr {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

/* ==========================================================================
   Mobile
   ========================================================================== */

@media (max-width: 600px) {

    .quiz-card {
        padding: 24px 20px;
    }

    .quiz-card h1 {
        font-size: 24px;
    }

    .quiz-question {
        font-size: 18px;
    }

    .quiz-passage {
        padding: var(--space-sm);
        font-size: 14px;
    }

    .quiz-overall-level {
        font-size: 38px;
    }

    .review-item {
        padding: var(--space-sm);
    }
}

/* Reward of the test that was just finished (eggs, or a gold egg), at the top of the results. */
.quiz-reward {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 0 0 var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-highlight-soft);
    border-radius: var(--radius-md);
}

.quiz-reward--gold {
    background: linear-gradient(135deg, var(--color-highlight-soft), var(--color-gold-light));
    border: 1.5px solid var(--color-gold);
}

.quiz-reward .gold-egg {
    width: 34px;
    height: 44px;
}

.quiz-reward-emoji {
    flex: none;
    font-size: 36px;
    line-height: 1;
}

.quiz-reward-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
}

.quiz-reward-line {
    margin-top: 2px;
    font-size: 14px;
    color: var(--color-gold-dark);
}

/* Below the minimum: no eggs this time. Calm, not alarming: the learner can try again whenever they like. */
.quiz-reward--missed {
    background: var(--color-primary-soft);
    border: 1.5px dashed var(--color-border);
}

.quiz-reward--missed .quiz-reward-line {
    color: var(--color-label);
}

/* The avatar reached its full evolution: announced once, with the same gold as the Prize. */
.quiz-reward--top {
    background: linear-gradient(135deg, var(--color-highlight-soft), var(--color-gold-light));
    border: 1.5px solid var(--color-gold);
}

.quiz-reward--top .quiz-reward-emoji {
    font-size: 44px;
}

/* On the first screen of a test: what is needed to earn the eggs. */
.quiz-reward-note {
    margin: 0 0 var(--space-sm);
    padding: 10px var(--space-sm);
    background: var(--color-highlight-soft);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--color-gold-dark);
}

/* The prize of this test was already won: repeating it is practice. Calm and a little green, like a thing done. */
.quiz-reward--done {
    background: var(--color-primary-soft);
    border: 1.5px solid var(--color-border);
}

.quiz-reward--done .quiz-reward-emoji {
    font-size: 36px;
    color: var(--color-primary);
}

.quiz-reward--done .quiz-reward-line {
    color: var(--color-label);
}

/* An animation as the prize of a test: the animation moves next to its name. */
.quiz-reward--item {
    background: linear-gradient(135deg, var(--color-highlight-soft), var(--color-gold-light));
    border: 1.5px solid var(--color-gold);
}

.quiz-reward-note .ti {
    color: var(--color-primary);
}