:root {
    --article-quiz-navy: #10204b;
    --article-quiz-blue: #2e62e8;
    --article-quiz-coral: #ff765f;
    --article-quiz-yellow: #ffc94a;
    --article-quiz-mint: #60cfaa;
}

.article-quiz {
    position: relative;
    overflow: hidden;
    border: 1px solid #dbe4f4;
    border-radius: 34px;
    background: #f8faff;
    box-shadow: 0 24px 58px rgba(21, 47, 105, 0.12);
}

.article-quiz::before {
    position: absolute;
    top: -62px;
    right: -52px;
    width: 170px;
    height: 170px;
    content: '';
    pointer-events: none;
    border: 24px solid rgba(255, 118, 95, 0.1);
    border-radius: 50%;
}

.article-quiz__intro {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(220px, 0.72fr);
    gap: clamp(1.4rem, 4vw, 2.7rem);
    align-items: center;
    padding: clamp(1.35rem, 4vw, 2.5rem);
    background:
        radial-gradient(circle at 8% 12%, rgba(255, 201, 74, 0.18), transparent 30%),
        linear-gradient(145deg, #f9f6ff 0%, #e9f0ff 100%);
}

.article-quiz__intro-copy,
.article-quiz__scene {
    min-width: 0;
}

.article-quiz__intro h2 {
    margin: 0.45rem 0 0.85rem;
    color: var(--article-quiz-navy);
    font-size: clamp(1.75rem, 4.4vw, 2.65rem);
    letter-spacing: -0.045em;
    line-height: 1.04;
}

.article-quiz__intro p {
    margin: 0;
    color: #53627d;
    line-height: 1.7;
}

.article-quiz__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    margin-top: 1.25rem;
}

.article-quiz__actions .cta-button {
    min-width: 0;
}

.article-quiz__scene {
    position: relative;
    margin: 0;
    padding: 8px;
    border: 1px solid rgba(255, 255, 255, 0.9);
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.5);
    box-shadow: 0 24px 45px rgba(19, 45, 103, 0.18);
    transform: rotate(1.5deg);
}

.article-quiz__scene img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: 21px;
}

.article-quiz__scene figcaption {
    position: absolute;
    right: 18px;
    bottom: 18px;
    max-width: calc(100% - 36px);
    padding: 0.55rem 0.72rem;
    color: var(--article-quiz-navy);
    font-size: 0.72rem;
    font-weight: 800;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 10px 22px rgba(14, 33, 77, 0.16);
    backdrop-filter: blur(10px);
}

.article-quiz__body {
    padding: clamp(1.15rem, 3.5vw, 2.15rem);
    background: #13265d;
}

.article-quiz__progress {
    margin-bottom: 0.9rem;
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.8rem;
    font-weight: 800;
}

.article-quiz__progress-label {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.55rem;
}

.article-quiz__progress-track,
.article-quiz__result-meter {
    height: 8px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.15);
}

.article-quiz__progress-track span,
.article-quiz__result-meter span {
    display: block;
    width: 33.333%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--article-quiz-yellow), var(--article-quiz-coral));
    transition: width 260ms ease;
}

.article-quiz__form {
    display: grid;
    gap: 1rem;
}

.article-quiz.is-enhanced .article-quiz__question[hidden],
.article-quiz__results[hidden] {
    display: none;
}

.article-quiz__question {
    min-width: 0;
    margin: 0;
    padding: clamp(1.2rem, 3.5vw, 2rem);
    border: 0;
    border-radius: 25px;
    background: #ffffff;
    box-shadow: 0 18px 36px rgba(4, 13, 43, 0.24);
}

.article-quiz__question legend {
    width: 100%;
    margin-bottom: 1rem;
    padding: 0;
    color: var(--article-quiz-navy);
    font-size: clamp(1.2rem, 3.1vw, 1.65rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.25;
    background: #ffffff;
}

.article-quiz__eyebrow {
    display: block;
    width: fit-content;
    margin-bottom: 0.65rem;
    padding: 0.38rem 0.58rem;
    color: #28499c;
    font-size: 0.67rem;
    font-weight: 850;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    border-radius: 999px;
    background: #edf2ff;
}

.article-quiz__options {
    display: grid;
    gap: 0.6rem;
}

.article-quiz__options label {
    display: block;
    cursor: pointer;
}

.article-quiz__options input {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
}

.article-quiz__options label > span {
    display: grid;
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 0.7rem;
    align-items: center;
    min-height: 56px;
    padding: 0.68rem 0.78rem;
    color: #33415d;
    border: 1px solid #dce4f4;
    border-radius: 15px;
    background: #fbfcff;
    transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.article-quiz__options label:hover > span {
    border-color: rgba(46, 98, 232, 0.44);
    transform: translateY(-1px);
}

.article-quiz__options b {
    display: grid;
    width: 32px;
    height: 32px;
    place-items: center;
    color: #50617f;
    font-size: 0.75rem;
    border-radius: 10px;
    background: #edf2fb;
}

.article-quiz__options input:focus-visible + span {
    outline: 3px solid rgba(46, 98, 232, 0.25);
    outline-offset: 2px;
}

.article-quiz__options input:checked + span {
    color: #153b99;
    border-color: var(--article-quiz-blue);
    background: #f0f4ff;
}

.article-quiz__options input:checked + span b {
    color: #ffffff;
    background: var(--article-quiz-blue);
}

.article-quiz__options label.is-correct > span {
    color: #176a50;
    border-color: #5fcaa8;
    background: #eafaf4;
}

.article-quiz__options label.is-correct b {
    color: #ffffff;
    background: #28a77e;
}

.article-quiz__options label.is-wrong > span {
    color: #913729;
    border-color: #f09a8d;
    background: #fff0ed;
}

.article-quiz__options label.is-wrong b {
    color: #ffffff;
    background: #d95f4d;
}

.article-quiz__explanation {
    margin-top: 0.9rem;
    padding: 0.9rem 1rem;
    color: #40506d;
    border-left: 4px solid var(--article-quiz-mint);
    border-radius: 0 14px 14px 0;
    background: #effaf7;
}

.article-quiz.is-enhanced .article-quiz__explanation {
    display: none;
}

.article-quiz.is-enhanced .article-quiz__explanation.is-visible {
    display: block;
}

.article-quiz__explanation strong,
.article-quiz__explanation p {
    display: block;
    margin: 0 0 0.35rem;
}

.article-quiz__explanation a {
    color: #17674f;
    font-size: 0.82rem;
    font-weight: 800;
    text-decoration: none;
}

.article-quiz__action-bar {
    position: sticky;
    bottom: 10px;
    z-index: 3;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    margin-top: 0.85rem;
    padding: 0.7rem 0.75rem 0.7rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 18px;
    background: rgba(19, 38, 93, 0.9);
    box-shadow: 0 16px 34px rgba(5, 14, 46, 0.3);
    backdrop-filter: blur(16px);
}

.article-quiz__action-bar[hidden] {
    display: none;
}

.article-quiz__status {
    margin: 0;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.8rem;
}

.article-quiz__action-bar .cta-button,
.article-quiz__retry {
    flex: 0 0 auto;
    min-width: 138px;
    border: 0;
}

.article-quiz__action-bar .cta-button:disabled {
    cursor: not-allowed;
    opacity: 0.48;
}

.article-quiz__results {
    position: relative;
    overflow: hidden;
    scroll-margin-top: 86px;
    padding: clamp(1.35rem, 4vw, 2.4rem);
    color: var(--article-quiz-navy);
    border-radius: 25px;
    background:
        radial-gradient(circle at 100% 0%, rgba(255, 201, 74, 0.3), transparent 34%),
        #ffffff;
    box-shadow: 0 18px 36px rgba(4, 13, 43, 0.24);
}

.article-quiz__results h3 {
    margin: 0 0 0.5rem;
    font-size: clamp(1.55rem, 4vw, 2.25rem);
    letter-spacing: -0.04em;
    line-height: 1.08;
}

.article-quiz__score {
    display: flex;
    gap: 0.55rem;
    align-items: baseline;
    margin: 0 0 1rem;
}

.article-quiz__score strong {
    color: var(--article-quiz-blue);
    font-size: 1.6rem;
}

.article-quiz__result-meter {
    margin-bottom: 1.15rem;
    background: #e7ecf7;
}

.article-quiz__result-links {
    display: grid;
    gap: 0.5rem;
    margin: 1rem 0 1.2rem;
}

.article-quiz__result-links a {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.72rem 0.8rem;
    color: #234dba;
    font-size: 0.83rem;
    font-weight: 800;
    text-decoration: none;
    border-radius: 13px;
    background: #eef3ff;
}

.article-quiz__result-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    align-items: center;
}

.article-quiz__results[data-score-band="review_and_retry"] .article-quiz__result-actions .cta-button,
.article-quiz__results[data-score-band="almost_ready"] .article-quiz__retry,
.article-quiz__results[data-score-band="conversation_ready"] .article-quiz__retry {
    color: var(--article-quiz-blue);
    border: 1px solid #b9c9ee;
    background: #ffffff;
}

.article-quiz__results[data-score-band="conversation_ready"] {
    background:
        radial-gradient(circle at 100% 0%, rgba(96, 207, 170, 0.34), transparent 36%),
        #ffffff;
}

.article-quiz__result-links[hidden],
.article-quiz__result-actions [hidden] {
    display: none;
}

.article-quiz__retry {
    min-height: 48px;
    padding: 0.75rem 1rem;
    color: #ffffff;
    font: inherit;
    font-weight: 800;
    border-radius: 999px;
    background: var(--article-quiz-blue);
}

.article-quiz__confetti {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    width: 0;
    height: 0;
    pointer-events: none;
}

@media (max-width: 760px) {
    .article-quiz__intro {
        grid-template-columns: 1fr;
    }

    .article-quiz__scene {
        width: min(100%, 430px);
        justify-self: center;
        transform: none;
    }
}

@media (max-width: 520px) {
    .article-quiz {
        border-radius: 24px;
    }

    .article-quiz__intro,
    .article-quiz__body {
        padding: 1rem;
    }

    .article-quiz__intro h2 {
        font-size: 1.85rem;
    }

    .article-quiz__actions,
    .article-quiz__result-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .article-quiz__actions .cta-button,
    .article-quiz__actions .learn-text-link,
    .article-quiz__result-actions .cta-button,
    .article-quiz__result-actions .learn-text-link,
    .article-quiz__retry {
        width: 100%;
        justify-content: center;
        text-align: center;
    }

    .article-quiz__question {
        padding: 1rem;
        border-radius: 19px;
    }

    .article-quiz__question legend {
        font-size: 1.2rem;
    }

    .article-quiz__options label > span {
        grid-template-columns: 29px minmax(0, 1fr);
        min-height: 52px;
        padding: 0.62rem;
    }

    .article-quiz__options b {
        width: 29px;
        height: 29px;
    }

    .article-quiz__action-bar {
        position: static;
        align-items: stretch;
        flex-direction: column;
        padding: 0.8rem;
    }

    .article-quiz__action-bar .cta-button {
        width: 100%;
    }

    .article-quiz__progress-label {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.2rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .article-quiz *,
    .article-quiz *::before,
    .article-quiz *::after {
        scroll-behavior: auto !important;
        transition: none !important;
        animation: none !important;
    }

    .article-quiz__confetti {
        display: none;
    }
}