:root {
    --form-primary: #186549;
    --form-primary-dark: #104b36;
    --form-accent: #dbece5;
    --form-bg: #f5f7f6;
    --form-border: #d9dfdc;
    --form-text: #1d2924;
}

body {
    min-height: 100vh;
    color: var(--form-text);
    background: var(--form-bg);
    font-family:
        "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic",
        Meiryo, sans-serif;
}

.site-header {
    color: #fff;
    background:
        linear-gradient(110deg, rgba(8, 65, 44, .98), rgba(24, 101, 73, .9)),
        var(--form-primary);
}

.site-header .small {
    letter-spacing: .12em;
    opacity: .72;
}

.stepper {
    max-width: 680px;
    margin-inline: auto;
}

.stepper__item {
    position: relative;
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: center;
    gap: .4rem;
    color: #75827c;
    font-size: .875rem;
    font-weight: 600;
}

.stepper__item:not(:last-child)::after {
    position: absolute;
    top: 1rem;
    left: calc(50% + 1.4rem);
    z-index: -1;
    width: calc(100% - 2.8rem);
    height: 2px;
    background: var(--form-border);
    content: "";
}

.stepper__number {
    display: grid;
    width: 2rem;
    height: 2rem;
    place-items: center;
    border: 2px solid var(--form-border);
    border-radius: 50%;
    background: #fff;
}

.stepper__item.is-current,
.stepper__item.is-complete {
    color: var(--form-primary);
}

.stepper__item.is-current .stepper__number,
.stepper__item.is-complete .stepper__number {
    border-color: var(--form-primary);
}

.stepper__item.is-current .stepper__number {
    color: #fff;
    background: var(--form-primary);
}

.stepper__item.is-complete:not(:last-child)::after {
    background: var(--form-primary);
}

.deadline-banner {
    display: flex;
    max-width: 920px;
    align-items: center;
    gap: .65rem 1rem;
    margin-inline: auto;
    padding: .8rem 1rem;
    border: 1px solid #cfddd7;
    border-left: 4px solid #6f9684;
    border-radius: .55rem;
    background: #f7faf8;
}

.deadline-banner__label {
    flex: 0 0 auto;
    color: #4d6f60;
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .05em;
}

.deadline-banner__date {
    color: #294c3e;
    font-size: 1.05rem;
}

.deadline-banner__note {
    margin-left: auto;
    color: #6a7771;
    font-size: .82rem;
}

.form-intro,
.form-section,
.confirm-section,
.result-card {
    max-width: 920px;
    margin-inline: auto;
    border: 1px solid var(--form-border);
    border-radius: 1rem;
    background: #fff;
    box-shadow: 0 .35rem 1.5rem rgba(27, 50, 41, .05);
}

.form-intro {
    padding: 1.25rem 1.5rem;
}

.form-section,
.confirm-section {
    margin-bottom: 1.5rem;
    padding: clamp(1.25rem, 3vw, 2.25rem);
}

.section-heading {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.75rem;
}

.section-heading > span {
    display: grid;
    flex: 0 0 2.5rem;
    height: 2.5rem;
    place-items: center;
    border-radius: .7rem;
    color: #fff;
    background: var(--form-primary);
    font-size: .85rem;
    font-weight: 700;
}

.section-heading h2 {
    margin: 0 0 .25rem;
    font-size: clamp(1.25rem, 3vw, 1.55rem);
    font-weight: 700;
}

.section-heading p {
    margin: 0;
    color: #68756f;
    font-size: .925rem;
}

.work-card {
    padding: clamp(1rem, 2vw, 1.5rem);
    border: 1px solid var(--form-border);
    border-radius: .85rem;
    background: #fbfcfb;
}

.work-card + .work-card {
    margin-top: 1.25rem;
}

.form-label {
    font-weight: 600;
}

.required-badge {
    display: inline-block;
    margin-left: .45rem;
    padding: .13rem .38rem;
    border-radius: .25rem;
    color: #a32525;
    background: #fce8e8;
    font-size: .7rem;
    line-height: 1.2;
    vertical-align: .12em;
}

.form-control,
.input-group-text {
    min-height: 3rem;
}

.form-control:focus,
.form-check-input:focus {
    border-color: var(--form-primary);
    box-shadow: 0 0 0 .25rem rgba(24, 101, 73, .14);
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    margin-top: .15rem;
}

.form-check-input:checked {
    border-color: var(--form-primary);
    background-color: var(--form-primary);
}

.option-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
    gap: .7rem 1rem;
}

.option-grid--wide {
    grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}

.option-grid .form-check {
    min-height: 2.8rem;
    margin: 0;
    padding: .65rem .75rem .65rem 2.35rem;
    border: 1px solid var(--form-border);
    border-radius: .6rem;
    background: #fff;
}

.option-grid .form-check-input {
    margin-left: -1.7rem;
}

.form-actions {
    display: flex;
    max-width: 920px;
    justify-content: center;
    margin: 2rem auto 3rem;
}

.form-actions--split {
    justify-content: space-between;
    gap: 1rem;
}

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

.confirm-section > h2 {
    padding-bottom: .75rem;
    border-bottom: 2px solid var(--form-primary);
    font-size: 1.35rem;
    font-weight: 700;
}

.confirm-block + .confirm-block {
    margin-top: 1.5rem;
}

.confirm-block h3 {
    margin: 1.25rem 0 .75rem;
    font-size: 1.05rem;
    font-weight: 700;
}

.confirm-list {
    margin: 0;
}

.confirm-list > div {
    display: grid;
    grid-template-columns: minmax(10rem, 28%) 1fr;
    border-bottom: 1px solid var(--form-border);
}

.confirm-list > div:last-child {
    border-bottom: 0;
}

.confirm-list dt,
.confirm-list dd {
    margin: 0;
    padding: .9rem 1rem;
}

.confirm-list dt {
    background: #f1f6f3;
    font-weight: 600;
}

.result-card {
    margin-top: 1rem;
    margin-bottom: 3rem;
    padding: clamp(2rem, 6vw, 4.5rem) 1.5rem;
}

.result-icon {
    display: grid;
    width: 4.5rem;
    height: 4.5rem;
    margin: 0 auto 1.5rem;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    font-size: 2.2rem;
    font-weight: 700;
}

.result-icon--success {
    background: var(--form-primary);
}

.result-icon--error {
    background: #b33636;
}

.result-icon--closed {
    background: #64776e;
    font-size: 1rem;
}

.result-alert {
    max-width: 40rem;
}

@media (max-width: 575.98px) {
    .site-header .h2 {
        font-size: 1.4rem;
    }

    .form-actions--split {
        flex-direction: column-reverse;
    }

    .form-actions--split .btn,
    .form-actions--split form {
        width: 100%;
    }

    .form-actions--split .btn {
        display: block;
    }

    .deadline-banner {
        flex-wrap: wrap;
        gap: .35rem .7rem;
    }

    .deadline-banner__date {
        flex: 1;
    }

    .deadline-banner__note {
        width: 100%;
        margin-left: 0;
    }

    .confirm-list > div {
        grid-template-columns: 1fr;
    }

    .confirm-list dt {
        padding-bottom: .35rem;
        background: transparent;
        color: #637169;
        font-size: .83rem;
    }

    .confirm-list dd {
        padding-top: .15rem;
    }
}