/* 乗り方診断：PC_完全版 / SP_完全版 */
.diagnosis {
    margin-top: 113px;
    padding: 39px 0 48px;
    background: #ecf6fa;
    scroll-margin-top: 20px;
}

.diagnosis-title {
    position: relative;
    width: 240px;
    margin-inline: auto;
}

.diagnosis-title::after {
    position: absolute;
    bottom: 3px;
    left: 50%;
    width: 100px;
    height: 5px;
    border-radius: 4px;
    background: #000;
    transform: translateX(-50%);
    content: "";
}

.diagnosis-intro {
    margin: 24px 16px 0;
    text-align: center;
    font-size: 20px;
    font-weight: 600;
    line-height: 40px;
}

.diagnosis-form {
    width: min(850px, calc(100% - 32px));
    margin: 38px auto 0;
    padding: 48px 39px 47px;
    border: 3px solid var(--outline);
    border-radius: 12px;
    background: #fff;
}

.diagnosis-question {
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
    scroll-margin-top: 20px;
}

.diagnosis:focus,
.diagnosis-question:focus,
.diagnosis-result:focus {
    outline: none;
}

.diagnosis-question:disabled .answer-option {
    cursor: default;
}

.diagnosis-question + .diagnosis-question {
    margin-top: 45px;
}

.diagnosis-question + .diagnosis-question--4 {
    margin-top: 48px;
}

/* 全設問を同じグリッドに重ね、最も高い設問に合わせて高さを確保します。 */
.is-enhanced .diagnosis-stage {
    display: grid;
    isolation: isolate;
}

.is-enhanced .diagnosis-stage .diagnosis-question {
    grid-area: 1 / 1;
    align-self: start;
    margin-top: 0;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    background: #fff;
}

.is-enhanced .diagnosis-stage .is-current,
.is-enhanced .diagnosis-stage .is-leaving {
    visibility: visible;
    opacity: 1;
}

.is-enhanced .diagnosis-stage .is-current {
    z-index: 2;
    pointer-events: auto;
}

.is-enhanced .diagnosis-stage .is-leaving {
    z-index: 1;
}

.diagnosis-form[aria-busy="true"] .diagnosis-stage {
    pointer-events: none;
}

.diagnosis-form[aria-busy="true"] .diagnosis-question {
    pointer-events: none;
}

/* 回答中のQ2〜Q4で表示。結果確定後は再診断ボタンを使用します。 */
.diagnosis-back {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    min-width: 120px;
    min-height: 44px;
    margin: 24px 14px 0;
    padding: 8px 20px;
    border: 2px solid var(--outline);
    border-radius: 99px;
    background: #fff;
    color: var(--outline);
    font: inherit;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
}

.diagnosis-back[hidden] {
    display: none;
}

.diagnosis-back:focus-visible {
    outline: 3px solid var(--blue);
    outline-offset: 4px;
}

.diagnosis-back:disabled {
    opacity: 0.5;
    cursor: default;
}

@media (hover: hover) {
    .diagnosis-back:hover:not(:disabled) {
        background: #ecf6fa;
    }
}

.question-heading {
    display: flex;
    align-items: center;
    gap: 15px;
    width: 100%;
    min-height: 60px;
    padding: 0 22px;
    border-radius: 99px;
    background: var(--blue);
    color: #fff;
}

.question-number {
    flex-shrink: 0;
    font-size: 28px;
    font-weight: 500;
    line-height: 1;
}

.question-number small {
    font-size: 16px;
}

.question-copy img {
    width: auto;
    height: 36px;
}

.answer-options {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 13px;
    margin: 30px 14px 0;
    padding-bottom: 6px;
}

.diagnosis-question--1 .answer-options {
    margin-top: 29px;
}

.answer-option {
    position: relative;
    display: flex;
    cursor: pointer;
}

.answer-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 107px;
    padding: 16px 18px;
    border: 2px solid var(--outline);
    border-radius: 9px;
    background: #fff;
    box-shadow: 0 6px 0 var(--outline);
    font-size: 16px;
    font-weight: 600;
    line-height: 23px;
    transition: background-color 120ms ease, transform 120ms ease, box-shadow 120ms ease;
}

.diagnosis-question--1 .answer-button {
    min-height: 92px;
}

.answer-option input:checked + .answer-button {
    background: #fdefd4;
}

.answer-option input:focus-visible + .answer-button {
    outline: 3px solid var(--blue);
    outline-offset: 5px;
}

.answer-option:active input:not(:disabled) + .answer-button {
    transform: translateY(4px);
    box-shadow: 0 2px 0 var(--outline);
}

@media (hover: hover) {
    .answer-option:hover input:not(:disabled) + .answer-button {
        border-color: var(--blue);
    }
}

.diagnosis-status:not(.visually-hidden),
.diagnosis-noscript {
    margin-top: 42px;
    text-align: center;
    font-size: 16px;
    line-height: 1.8;
}

.diagnosis-results[hidden],
.diagnosis-result[hidden] {
    display: none;
}

.diagnosis-arrow {
    width: 283px;
    height: 50px;
    margin: 46px auto 30px;
    background: #245e84;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
}

.diagnosis-result {
    --result-color: var(--blue);
    --result-background: #eaf8ff;
    overflow: hidden;
    border: 3px solid var(--outline);
    border-radius: 14px;
    background: var(--result-background);
    scroll-margin-top: 20px;
}

/* 非表示の結果を挟む組み合わせでも、表示中の結果の間に余白を設けます。 */
.diagnosis-result:not([hidden]) ~ .diagnosis-result:not([hidden]) {
    margin-top: 28px;
}

.diagnosis-result--used {
    --result-color: var(--green);
    --result-background: #f1fff8;
}

.diagnosis-result--rental {
    --result-color: var(--orange);
    --result-background: #fff5ef;
}

.result-title {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 83px;
    padding: 0 16px;
    border-bottom: 3px solid var(--outline);
    background: var(--result-color);
    color: #fff;
}

.result-title img {
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 72px;
}

.result-body {
    padding: 40px 38px 29px;
    font-size: 16px;
    font-weight: 600;
    line-height: 23px;
}

.result-body .detail-link {
    margin: 45px auto 0;
}

/* 結果と同じコンテナー内に置き、結果の表示・非表示と連動させます。 */
.diagnosis-restart {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 359px;
    min-height: 76px;
    max-width: 100%;
    margin: 24px auto 0;
    padding: 0;
    border: 0;
    border-radius: 38px;
    background: #000;
    cursor: pointer;
    transition: opacity 160ms ease;
}

.diagnosis-restart img {
    width: 144px;
    height: 36px;
}

.diagnosis-restart:focus-visible {
    outline: 3px solid var(--blue);
    outline-offset: 5px;
}

@media (hover: hover) {
    .diagnosis-restart:hover {
        opacity: 0.8;
    }
}

.company {
    margin-top: 51px;
}

@media (min-width: 768px) and (max-width: 900px) {
    .diagnosis-form {
        padding-inline: 28px;
    }

    .answer-options {
        margin-inline: 0;
    }

    .answer-button {
        padding-inline: 12px;
    }

    .question-heading {
        padding-inline: 18px;
    }

    .question-copy img {
        height: auto;
    }

    .result-body {
        padding-inline: 26px;
    }
}

@media (max-width: 767px) {
    .diagnosis {
        margin-top: 3.5rem;
        padding: 3rem 0 2.5rem;
        scroll-margin-top: 1rem;
    }

    .diagnosis-title {
        width: 10rem;
    }

    .diagnosis-title::after {
        bottom: 0;
        width: 5rem;
        height: 0.1875rem;
    }

    .diagnosis-intro {
        margin: 1rem 1rem 0;
        font-size: 1.125rem;
        line-height: 1.5;
    }

    .diagnosis-form {
        width: calc(100% - 1.875rem);
        margin-top: 2.5rem;
        padding: 1.875rem 0.875rem 2.375rem;
        border-width: 0.125rem;
        border-radius: 0.75rem;
    }

    .diagnosis-back {
        gap: 0.75rem;
        min-width: 7.5rem;
        min-height: 2.75rem;
        margin: 1.5rem 0 0;
        padding: 0.5rem 1.25rem;
        border-width: 0.125rem;
        font-size: 1rem;
    }

    .diagnosis-question + .diagnosis-question {
        margin-top: 2.6875rem;
    }

    .diagnosis-question,
    .diagnosis-result {
        scroll-margin-top: 1rem;
    }

    .diagnosis-result:not([hidden]) ~ .diagnosis-result:not([hidden]) {
        margin-top: 1.5rem;
    }

    .diagnosis-question + .diagnosis-question--3,
    .diagnosis-question + .diagnosis-question--4 {
        margin-top: 2.25rem;
    }

    .question-heading {
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: 0.25rem;
        min-height: 6.6875rem;
        padding: 0.75rem 2rem;
        border-radius: 6.25rem;
    }

    .question-number {
        font-size: 1.375rem;
        line-height: 1.25rem;
    }

    .question-number small {
        font-size: 0.875rem;
    }

    .question-copy img {
        /* 遅延読み込み前もSPの寸法を確保し、PC画像の縦横比によるはみ出しを防ぐ。 */
        width: var(--question-sp-width);
        height: 3.375rem;
        max-width: none;
    }

    .diagnosis-question--1 {
        --question-sp-width: 16.75rem;
    }

    .diagnosis-question--2 {
        --question-sp-width: 14.5625rem;
    }

    .diagnosis-question--3 {
        --question-sp-width: 15.625rem;
    }

    .diagnosis-question--4 {
        --question-sp-width: 15.6875rem;
    }

    .answer-options,
    .diagnosis-question--1 .answer-options {
        grid-template-columns: minmax(0, 1fr);
        gap: 0.8125rem;
        margin: 1.375rem 0 0;
        padding-bottom: 0.3125rem;
    }

    .diagnosis-question--2 .answer-options {
        margin-top: 1.3125rem;
    }

    .diagnosis-question--3 .answer-options,
    .diagnosis-question--4 .answer-options {
        gap: 0.875rem;
        margin-top: 1.5rem;
    }

    .diagnosis-question--4 .answer-options {
        gap: 0.90625rem;
    }

    .answer-button,
    .diagnosis-question--1 .answer-button {
        min-height: 5.375rem;
        padding: 1rem 1.25rem;
        border-width: 0.125rem;
        border-radius: 0.5625rem;
        box-shadow: 0 0.3125rem 0 var(--outline);
        text-align: center;
        font-size: 1rem;
        line-height: 1.4375rem;
    }

    .answer-copy {
        max-width: var(--answer-sp-width);
    }

    .answer-option:active input:not(:disabled) + .answer-button {
        transform: translateY(0.1875rem);
        box-shadow: 0 0.125rem 0 var(--outline);
    }

    .diagnosis-status:not(.visually-hidden),
    .diagnosis-noscript {
        margin-top: 2.5rem;
        font-size: 0.9375rem;
    }

    .diagnosis-arrow {
        width: 16.875rem;
        height: 2.625rem;
        margin: 2.375rem auto 2rem;
    }

    .diagnosis-result {
        border-width: 0.125rem;
        border-radius: 0.75rem;
    }

    .result-title {
        min-height: 6.5rem;
        padding: 0.5rem 0.875rem;
        border-bottom-width: 0.125rem;
    }

    .result-title img {
        width: 20rem;
        height: 4.5rem;
        max-height: none;
    }

    .result-body {
        padding: 1.5rem 1.125rem 1.875rem;
        font-size: 1rem;
        line-height: 1.5;
    }

    .result-body .detail-link {
        width: 100%;
        margin: 2rem auto 0;
    }

    .diagnosis-result--used .detail-link img {
        aspect-ratio: 312 / 70;
    }

    .diagnosis-restart {
        width: 18.6875rem;
        min-height: 4rem;
        margin-top: 1.625rem;
        border-radius: 2.375rem;
    }

    .diagnosis-restart img {
        width: 9rem;
        height: 2.25rem;
    }

    .company {
        margin-top: 4.625rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .answer-button,
    .diagnosis-restart {
        transition: none;
    }
}