:root {
    --main-color: #000;
    --sub-color: #f0f8ff;
    /* --accent-color: #fff799; */
    --accent-color: #cce7ff;
    --button-color: #66b8ff;
}

/************************************************
    Header
*************************************************/
.header_wrapper {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
}

/************************************************
    Contents
*************************************************/
#contents {
    font-size: 1.6rem;
}

[class^="sec-title"] {
    grid-row: 1;
    grid-column: 2;
    margin-bottom: calc(var(--base-gutter) * 4);
    padding: 0 calc(var(--base-gutter) * 3);
    font-size: 1.5em;
    font-weight: bold;
    text-align: center;
}

[class^="sec-title"] span {
    display: block;
    margin-top: calc(var(--base-gutter) / 2);
    font-size: 0.5em;
    opacity: 0.5;
}

[class^="sec-content"] {
    grid-row: 2;
    grid-column: 2;
    padding: 0 calc(var(--base-gutter) * 3);
}

[class^="sec-content"] p + p {
    margin-top: 0.5em;
}

#contents .button-set {
    display: flex;
    flex-direction: column;
    row-gap: var(--base-gutter);
    margin: calc(var(--base-gutter) * 5) auto 0;
    width: 100%;
}

#contents .button {
    display: block;
    padding: var(--base-gutter) calc(var(--base-gutter) * 3);
    background-color: var(--button-color);
    border-radius: 5px;
    color: #fff;
    font-weight: bold;
    font-size: 1.25em;
    text-align: center;
}

/*  YouTube
================================================*/
.sec-wrapper__youtube iframe {
    grid-column: 2;
    width: 100%;
    aspect-ratio: 16 / 9;
}

/*  Introduction
================================================*/
.sec-title__intro::after {
    display: block;
    width: 100px;
    height: 4px;
    margin: calc(var(--base-gutter) * 2) auto calc(var(--base-gutter) * 4);
    background-color: var(--main-color);
    border-radius: 2px;
    content: '';
}

.intro-album {
    display: flex;
    flex-wrap: wrap;
    column-gap: var(--base-gutter);
    row-gap: var(--base-gutter);
    margin-top: calc(var(--base-gutter) * 4)
}

.intro-album__image {
    width: 100%;
    max-width: calc((100% - var(--base-gutter)) / 2);
}

/*  Presentation
================================================*/
.sec-wrapper__present {
    padding-bottom: 0;
}

.present-list__item {
    opacity: 0;
}

.present-list__item + .present-list__item {
    margin-top: calc(var(--base-gutter) * 5);
}

.present-list__item.active {
    animation: PresentAnime 1s ease-out 0s forwards;
}

@keyframes PresentAnime {
    from {
        opacity: 0;
        transform: translateY(100px);
        pointer-events: none;
    }

    to {
        opacity: 1;
        transform: translateY(0);
        pointer-events: all;
    }
}

.present-list__title {
    color: #eee;
    font-family: serif;
    font-size: 2.25em;
    font-weight: bold;
    line-height: 1.2;
}

.present-list__content {
    display: flex;
    flex-direction: column;
    row-gap: calc(var(--base-gutter) * 3);
    column-gap: calc(var(--base-gutter) * 10);
    padding: calc(var(--base-gutter) * 3) 0;
}

.present-list__content::after {
    background-color: var(--sub-color);
}

.present-list__caption {
    width: 100%;
}

.present-list__name {
    margin-bottom: calc(var(--base-gutter) * 3);
    padding: var(--base-gutter) calc(var(--base-gutter) * 3);
    width: fit-content;
    background-color: var(--main-color);
    color: #fff;
    font-size: 1.125em;
    font-weight: bold;
}

.present-list__lead {
    margin: calc(var(--base-gutter) * 2) 0;
    font-size: 1.5em;
    font-weight: bold;
}

.present-list__image {
    width: 100%;
    max-width: 450px;
    height: 100%;
}

/*  FAQ
================================================*/
.sec-wrapper__questions {
    background-color: var(--accent-color);
}

.faq-list__item {
    border: 1px solid var(--border-color);
    background-color: #fff;
}

.faq-list__item + .faq-list__item {
    margin-top: calc(var(--base-gutter) * 3);
}

.faq-list__title {
    padding: calc(var(--base-gutter) * 2) calc(var(--base-gutter) * 3);
    background-color: var(--sub-color);
}

.faq-list__answer {
    padding: calc(var(--base-gutter) * 3);
    border-top: 1px solid var(--border-color);
}


/*  Profile
================================================*/
.sec-content__profile {
    display: flex;
    flex-direction: column;
    row-gap: calc(var(--base-gutter) * 5);
    column-gap: calc(var(--base-gutter) * 10);
}

.profile-data th {
    width: 30%;
    vertical-align: middle;
}

.profile-data th,
.profile-data td {
    border: 1px solid var(--border-color);
    border-left: none;
    border-right: none;
}

.profile-data td:has(.profile-logo) {
    display: flex;
    align-items: center;
    gap: var(--base-gutter);
}

.profile-logo {
    width: auto;
    height: 100%;
    max-height: 60px;
}


/*  Contact
================================================*/
.sec-wrapper__contact {
    background-color: var(--accent-color);
}

.sec-container__contact .button-set .button {
    line-height: 1.3;
}

.sec-container__contact .button-set .button span {
    display: block;
    font-size: 0.75em;
    font-weight: normal;
}

/************************************************
    Fixed Link
*************************************************/
.fixedlink-content__recruit a,
.fixedlink-content__line a {
    background-color: var(--button-color);
}

.fixedlink-content__recruit {
    flex: 1;
    font-size: 1.25em;
}

.fixedlink-content__line {
    font-size: 1.75em;
}

/************************************************
    Footer
*************************************************/
#footer {
    background-color: #fff;
    color: inherit;
}