:root {
    --sticky-header-height: 42px;
    --main-text-color: #333;
    --primary-brand-color: #1b9858;
    /* メインの緑 (h2など) */
    --secondary-brand-color: #48a657;
    /* やや明るい緑 (タブボタン、アコーディオンなど) */
    --accent-color: #d7f387;
    /* 黄緑色のアクセント (アクティブなタブ/アコーディオンなど) */
    --info-header-bg: #3287cc;
    /* 青系の情報ヘッダー背景 */
    --info-header-text: var(--info-header-bg);
    /* 青系の情報ヘッダーテキスト */
    --white-color: #FFF;
    --light-gray-border: #e5e7eb;
    /* 薄いグレーのボーダー */
    --body-bg-color: #c9e4c1;
}

html {
    box-sizing: border-box;
}

*,
*::before,
*::after {
    box-sizing: inherit;
}

body {
    /* margin: 0; Normalize.cssでリセットされるためコメントアウトまたは削除を推奨 */
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    font-size: 1rem;
    color: var(--main-text-color);
    background-image: url(/img/ihf-soccer/bg-sky.webp);
    background-size: contain;
    background-position: top center;
    background-repeat: no-repeat;
    background-color: var(--body-bg-color);
    line-height: 1.5;
}

.hide {
    display: none;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
}

header {
    padding: 20px 0;
    text-align: center;
}

#main-visual {
    aspect-ratio: 16 / 9;
    background-color: #eee;
    margin-bottom: 10px;
    border-radius: 22px;
    overflow: hidden;
    border: solid 4px var(--white-color);
}

#main-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

h1 {
    font-size: 3rem;
    margin: 0;
}

h1 span {
    display: block;
    font-size: 0.5em;
}

h2 {
    font-size: 1.5rem;
    position: relative;
    padding: 15px 20px 18px;
    border-bottom: 3px solid var(--primary-brand-color);
    border-left: 3px solid var(--primary-brand-color);
    border-radius: 0 0 0 20px;
    margin-bottom: 1.2em;
    background-color: var(--primary-brand-color);
    color: var(--white-color);
}

h2:before {
    position: absolute;
    right: 50px;
    bottom: -21px;
    width: 0;
    height: 0;
    content: '';
    border-width: 21px 21px 0 0;
    border-style: solid;
    border-color: var(--primary-brand-color) transparent transparent transparent;
}

h2:after {
    position: absolute;
    right: 54px;
    bottom: -14px;
    width: 0;
    height: 0;
    content: '';
    border-width: 14px 14px 0 0;
    border-style: solid;
    border-color: var(--primary-brand-color) transparent transparent transparent;
}

.tabs {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    border-bottom: 2px solid var(--accent-color);
}

.tab-button {
    padding: 10px 15px;
    cursor: pointer;
    font-size: 1.125rem;
    font-weight: bold;
    border: 1px solid var(--secondary-brand-color);
    border-bottom: none;
    background-color: var(--secondary-brand-color);
    color: var(--white-color);
    margin-right: 5px;
    border-radius: 8px 8px 0 0;
    transition: background-color 0.2s, color 0.2s;
}

.tab-button.active {
    background-color: var(--accent-color);
    color: #3b4f47;
    border-bottom: 1px solid var(--white-color);
    /* 背景色と同じにして枠線を消す効果 */
    border-color: var(--accent-color);
    /* 左右上の枠線色 */
}

.tab-content {
    padding: 25px;
    min-height: 15em;
    border-radius: 0 0 10px 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    background-color: var(--white-color);
}

.tab-content.hidden {
    display: none;
}

.coming-soon-message {
    text-align: center;
    color: #6c757d;
    padding: 3em 1em;
    line-height: 1.6;
}

.coming-soon-message strong {
    font-size: 1.5rem;
    display: block;
    margin-bottom: 0.5em;
    color: #495057;
}

/* --- #related-links-section2 のリンクリスト専用スタイル --- */
#related-links-section2 .link-list {
    margin: 30px 0;
    gap: 20px;
    display: flex;
    flex-wrap: wrap;
}

#related-links-section2 .link-list p {
    width: calc(33.333% - (20px * 2 / 3));
    margin: 0;
}

#related-links-section2 .link-list p a {
    background-color: var(--white-color);
    color: var(--main-text-color);
    /* border: 1px solid #ccc; */
    font-weight: bold;
    /* padding: 15px 15px; */
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
    transition: background-color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
    font-size: 0.95rem;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    /* min-height: 70px; */
    line-height: 1.4;
    text-decoration: none;
    overflow: hidden;
}

#related-links-section2 .link-list p a img {
    width: 100% !important;
    height: auto !important;
}

#related-links-section2 .link-list p a:hover,
#related-links-section2 .link-list p a:focus {
    color: var(--main-text-color);
    border-color: #aaa;
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    text-decoration: none;
}

/* --- ここまで #related-links-section2 のリンクリスト専用スタイル --- */
section {
    margin-bottom: 80px;
}

.accordion-item {
    margin-bottom: 4px;
    border-radius: 8px;
    overflow: hidden;
    border: solid 2px var(--white-color);
}

.accordion-item:last-child {
    margin-bottom: 0;
}

.accordion-trigger {
    cursor: pointer;
    position: relative;
    padding: 12px 45px 10px 20px;
    border-bottom: 2px solid #248356;
    /* やや濃い緑のボーダー */
    background-color: var(--secondary-brand-color);
    color: var(--white-color);
    transition: background-color 0.2s, color 0.2s;
    font-weight: 600;
}

h3.accordion-trigger {
    margin: 0;
    font-size: 1.15rem;
    line-height: 1.4;
}

.accordion-trigger span.trigger {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 1em;
    height: 1em;
}

.accordion-trigger span.trigger::before,
.accordion-trigger span.trigger::after {
    content: '';
    position: absolute;
    background-color: var(--white-color);
    transition: transform 0.2s ease-in-out, background-color 0.2s ease-in-out, opacity 0.2s ease-in-out;
}

.accordion-trigger span.trigger::before {
    top: 50%;
    left: 0;
    width: 100%;
    height: 2px;
    margin-top: -1px;
}

.accordion-trigger span.trigger::after {
    top: 0;
    left: 50%;
    width: 2px;
    height: 100%;
    margin-left: -1px;
    transform: rotate(0deg);
    opacity: 1;
}

.accordion-trigger.active span.trigger::before {
    background-color: #3b4f47;
}

.accordion-trigger.active span.trigger::after {
    background-color: #3b4f47;
    transform: rotate(90deg);
    opacity: 0;
}

.accordion-trigger.active {
    background-color: var(--accent-color);
    color: #3b4f47;
    border-bottom-color: transparent;
}

.accordion-content.hidden {
    display: none;
}

#map-container {
    display: flex;
    gap: 30px;
    align-items: stretch;
    margin-top: 40px;
    height: 550px;
    padding: 1em;
    box-sizing: border-box;
    border-radius: 8px;
    background-color: #ddf6fa;
}

#map-img img {
    width: 100%;
    height: auto;
}

#map-container>div:first-child {
    flex: 0 0 29%;
    background-color: var(--white-color);
    border-radius: 16px;
    overflow: hidden;
    position: relative;
}

#map-container>div:last-child {
    flex: 0 1 calc(71% - 30px);
    overflow-y: auto;
    min-height: 0;
    padding-right: 15px;
}

#map-img {
    position: relative;
}

.main-visual-wrapper {
    margin-bottom: 20px;
}

.slider-controls {
    text-align: center;
    margin-top: 10px;
}

.slider-controls button {
    cursor: pointer;
    border: none;
    background: none;
    width: 36px;
    display: inline-block;
}

.slider-controls button img {
    display: block;
    width: 100%;
    height: 100%;
}

.play-button.hidden,
.pause-button.hidden,
.slider-controls.hidden {
    display: none;
}

#main-visual .slick-prev,
#main-visual .slick-next {
    width: 30px;
    height: 30px;
    z-index: 1;
}

#main-visual .slick-prev::before,
#main-visual .slick-next::before {
    content: "" !important;
}

#main-visual .slick-prev {
    left: 15px;
    background: url('/img/ihf-soccer/arrow-s.png') no-repeat center / contain;
}

#main-visual .slick-next {
    right: 15px;
    background: url('/img/ihf-soccer/arrow-s.png') no-repeat center / contain;
    transform: translateY(-50%) rotate(180deg);
}

#main-visual .slick-dots {
    bottom: 15px;
}

#main-visual .slick-dots li {
    margin: 0 4px;
}

#main-visual .slick-dots li button {
    width: 12px;
    height: 12px;
    padding: 0;
    font-size: 0;
    border: none;
    background: url('/img/ihf-soccer/dot-s.png') no-repeat center / contain transparent;
    opacity: 0.4;
    transition: opacity 0.2s ease-in-out;
}

#main-visual .slick-dots li button:before {
    content: "" !important;
}

#main-visual .slick-dots li.slick-active button {
    opacity: 1;
}

.slick-track p {
    margin: 0;
    padding: 0;
}

.accordion-content {
    background-color: var(--white-color);
    padding: 1em;
}

.accordion-content-item {
    background-color: var(--white-color);
    border: 1px solid var(--light-gray-border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    border-bottom-width: 2px;
}

.accordion-content-item:last-child {
    margin-bottom: 0;
}

.accordion-content-item .column {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    margin-bottom: 15px;
}

.accordion-content-item .honbun {
    flex: 1;
    line-height: 1.6;
}

.accordion-content-item .honbun h4 {
    font-size: 1.25rem;
    font-weight: bold;
    padding: 0.5em 1em;
    background-color: var(--info-header-bg);
    color: var(--white-color);
    overflow: hidden;
    position: relative;
    margin-top: 0;
    margin-bottom: 0.8em;
    border-radius: 5px;
}

.accordion-content-item .honbun h4::after {
    content: '';
    background-color: var(--white-color);
    opacity: 0.1;
    transform: rotate(-65deg);
    position: absolute;
    bottom: -250px;
    right: -250px;
    width: 300px;
    height: 500px;
}

.accordion-content-item .photo {
    flex: 0 0 240px;
    flex-direction: column;
    row-gap: 10px;
    display: flex;
}

.accordion-content-item .photo img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

.accordion-content-item .photo p {
    margin: 0;
    font-size: 0.875rem;
}

.accordion-content-item .photo .coupon {
    display: flex;
    align-items: center;
    font-size: 0.875rem;
    column-gap: 6px;
}

.accordion-content-item .photo .coupon img {
    width: 118px;
}

#gaiyo-content {
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    list-style-type: none;
    background-color: var(--white-color);
}

.naiyou h3,
#gaiyo-content h3 {
    font-size: 1.3rem;
    background-color: var(--info-header-bg);
    color: var(--white-color);
    padding: 10px 15px;
    margin-top: 25px;
    margin-bottom: 15px;
    border-radius: 4px;
    font-weight: bold;
    line-height: 1.5;
}

.naiyou h4,
#gaiyo-content h4 {
    font-size: 1.15rem;
    color: var(--info-header-text);
    margin-top: 22px;
    margin-bottom: 12px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--info-header-bg);
    font-weight: bold;
    line-height: 1.5;
}

.naiyou h5,
#gaiyo-content h5 {
    font-size: 1.05rem;
    color: var(--main-text-color);
    margin-top: 20px;
    margin-bottom: 10px;
    font-weight: bold;
    line-height: 1.6;
}

.naiyou h6,
#gaiyo-content h6 {
    font-size: 1rem;
    color: #555;
    /* やや薄いテキスト色、必要なら変数化 */
    margin-top: 20px;
    margin-bottom: 10px;
    font-weight: bold;
    line-height: 1.6;
}

.naiyou>h3:first-child,
.naiyou>h4:first-child,
.naiyou>h5:first-child,
.naiyou>h6:first-child,
#gaiyo-content>h3:first-child,
#gaiyo-content>h4:first-child,
#gaiyo-content>h5:first-child,
#gaiyo-content>h6:first-child {
    margin-top: 0;
}

.naiyou p,
#gaiyo-content p {
    line-height: 1.7;
    margin-top: 0.8em;
    margin-bottom: 1.2em;
}

.naiyou p:first-child,
#gaiyo-content p:first-child {
    margin-top: 0;
}

.naiyou ul,
.naiyou ol,
#gaiyo-content ul,
#gaiyo-content ol {
    line-height: 1.6;
    margin-top: 1em;
    margin-bottom: 1.2em;
    padding-left: 25px;
    list-style-position: outside;
}

.naiyou ul,
#gaiyo-content ul {
    list-style-type: disc;
}

.naiyou ol,
#gaiyo-content ol {
    list-style-type: decimal;
}

.naiyou li,
#gaiyo-content li {
    line-height: 1.6;
    margin-bottom: 0.6em;
}

.naiyou img,
#gaiyo-content img {
    max-width: 100%;
    height: auto !important;
}


ul.link-news-list {
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    list-style-type: none;
    background-color: var(--white-color);
}

ul.link-news-list li {
    display: flex;
    align-items: baseline;
    margin-bottom: 0.6em;
    border-bottom: dotted 2px var(--light-gray-border);
    padding-bottom: 0.6em;
}

ul.link-news-list li:last-child {
    margin-bottom: 0px;
}

ul.link-news-list li .date {
    flex-shrink: 0;
    width: 10em;
    margin-right: 1em;
}

ul.link-news-list li .link {
    flex-grow: 1;
}

ul.link-news-list .ichiranLink {
    text-align: right;
}

.accordion-content-item ul.itemList {
    list-style: none;
    padding-left: 0;
    margin-top: 20px;
    margin-bottom: 0;
    font-size: 0.875rem;
    display: flex;
    flex-wrap: wrap;
    gap: 6px 20px;
}

.accordion-content-item ul.itemList li {
    display: flex;
    align-items: baseline;
    line-height: 1.5;
    width: calc(50% - 10px);
    box-sizing: border-box;
    border-bottom: dotted 2px #c8d2c4;
    padding-bottom: 6px;
}

.accordion-content-item ul.itemList li span {
    background-color: #e8f1e5;
    padding: 0.1em 0.4em;
    border-radius: 4px;
    margin-right: 0.8em;
    flex-shrink: 0;
}

.accordion-content-item .link-jichi a {
	position: relative;
	padding-right: 1.5em;
	display: flex;
	border-bottom: dashed 1px #333;
	margin-bottom: 9px;
	padding-bottom: 9px;
}

.accordion-content-item .link-jichi a::after {
    content: "";
    display: inline-block;
    width: 1em;
    /* アイコンの幅 (フォントサイズに連動) */
    height: 1em;
    /* アイコンの高さ (フォントサイズに連動) */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='currentColor'%3E%3Cpath fill-rule='evenodd' d='M8.636 3.5a.5.5 0 0 0-.5-.5H1.5A1.5 1.5 0 0 0 0 4.5v10A1.5 1.5 0 0 0 1.5 16h10a1.5 1.5 0 0 0 1.5-1.5V7.864a.5.5 0 0 0-1 0V14.5a.5.5 0 0 1-.5.5h-10a.5.5 0 0 1-.5-.5v-10a.5.5 0 0 1 .5-.5h6.636a.5.5 0 0 0 .5-.5z'/%3E%3Cpath fill-rule='evenodd' d='M16 .5a.5.5 0 0 0-.5-.5h-5a.5.5 0 0 0 0 1h3.793L6.146 9.146a.5.5 0 1 0 .708.708L15 1.707V5.5a.5.5 0 0 0 1 0v-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-size: contain;
    /* アイコンがコンテナのサイズに収まるように調整 */
    background-position: center;
    position: absolute;
    right: 0.2em;
    /* 右端からの位置を微調整 */
    top: 50%;
    transform: translateY(-50%);
    /* 上下中央揃え */
}

.accordion-content-item .link-jichi a:last-child{
    border-bottom: none;
    margin-bottom: 0px;
    padding-bottom: 0px;
}



#modal-map-info {
    display: none;
}

.pdf-link-container {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0px 15px;
    flex-direction: row;
    justify-content: center;
    position: absolute;
    bottom: 10px;
    background-color: #FFFC;
    padding: 10px;
    border-radius: 10px;
    border: solid 3px #FFF;
}

#map-img img.pdf-thumbnail {
    width: 95px;
    height: auto;
    /* border: 1px solid #ccc; */
}


.photo2column {
    display: flex;
    column-gap: 20px;
}

.photo2column div {
    flex: 1;
}


.point3column {
    display: flex;
    justify-content: center;
    column-gap: 20px;
}

.point3column>div {
    width: 30%;
    border: solid 1px gainsboro;
    border-radius: 20px;
}

.point3column>div img {
    width: auto;
    height: 220px;
    margin: 0 auto;
    display: block;
}

.point3column>div p {
    padding: 1em 1em 0em;
}



@media (max-width: 768px) {
    h1 {
        font-size: 1.5rem;
    }

    h1 img {
        width: 100%;
    }

    h2 {
        font-size: 1.3rem;
        padding: 10px 10px 11px;
    }

    .link-list li {
        width: calc(50% - 20px);
    }

    .tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    #map-container {
        flex-direction: column;
        gap: 0px;
        height: auto;
    }

    #map-img img {
        width: 100%;
        height: auto;
        vertical-align: bottom;
    }

    #map-container>div:first-child,
    #map-container>div:last-child {
        flex: 1 1 auto;
        width: 100%;
        height: auto;
    }

    .tab-button {
        font-size: 1rem;
        padding: 8px 10px;
        white-space: nowrap;
    }

    .link-list {
        margin: 0;
    }

    #related-links-section2 .link-list {
        gap: 15px;
    }

    #related-links-section2 .link-list li {
        width: calc(50% - 7.5px);
        margin: 0;
    }

    .accordion-trigger {
        display: none;
    }

    .accordion-content-item .column {
        flex-direction: column;
        gap: 15px;
    }

    .accordion-content-item .photo {
        flex-basis: auto;
        width: 100%;
    }

    .accordion-content-item ul.itemList li {
        width: 100%;
    }

    .accordion-item {
        display: none;
    }

    .tab-content,
    ul.link-news-list,
    #gaiyo-content {
        padding: 15px;
    }

    .naiyou h3,
    #gaiyo-content h3 {
        font-size: 1.188rem;
    }

    #related-links-section2 .link-list p {
        width: calc(50% - (20px * 1 / 2));
    }

    ul.link-news-list li {
        flex-wrap: wrap;
        row-gap: 0.5em;
    }

    #main-visual-section {
        margin-bottom: 0px;
    }

    .pdf-link-container {
        padding: 5px;
    }

    .point3column {
        flex-wrap: wrap;
        row-gap: 10px;
    }

    .point3column>div {
        width: 100%;
    }

    .point3column>div img {
        height: 180px;
    }

    .point3column>div p {
        padding: 0em 1em;
    }
}

@media (max-width: 480px) {
    .link-list li {
        width: calc(100% - 20px);
    }

    #related-links-section2 .link-list li {
        width: 100%;
        margin: 0;
    }
}

@media (max-width: 320px) {
    h1 {
        font-size: 1.25rem;
        line-height: 1.7;
    }

    #mobile-sticky-menu a {
        font-size: 0.75rem;
    }
}

#mobile-sticky-menu {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to right, #acd4a3 50%, #83bf76 50%);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    z-index: 998;
    padding: 0;
    box-sizing: border-box;
    background-size: 22.22% 100%;
}

#mobile-sticky-menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
}

#mobile-sticky-menu a {
    display: block;
    padding: 5px 9px;
    /* 上下5px, 左右9pxのパディング */
    color: #3b4f47;
    text-decoration: none;
    font-size: 0.85rem;
    text-align: center;
    background-color: var(--white-color);
    margin: 4px;
    border-radius: 2px;
    transition: background-color 0.2s;
}

#mobile-sticky-menu a.active-nav-item {
    background-color: var(--main-text-color);
    /* アクティブ時は黒背景 */
    color: var(--white-color);
    /* アクティブ時は白文字 */
}

@media (max-width: 768px) {
    .modal-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.6);
        display: flex !important;
        align-items: center;
        justify-content: center;
        z-index: 1000;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    .modal-overlay.active {
        opacity: 1;
        visibility: visible;
    }

    .modal-content {
        background: var(--white-color);
        padding: 25px 14px;
        border-radius: 8px;
        width: 96%;
        max-width: 500px;
        max-height: 80vh;
        overflow-y: auto;
        position: relative;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        transform: translateY(-20px);
        transition: transform 0.3s ease;
    }

    .modal-overlay.active .modal-content {
        transform: translateY(0);
    }

    .modal-close-button {
        position: absolute;
        top: 10px;
        right: 15px;
        background: none;
        border: none;
        font-size: 1.8rem;
        font-weight: bold;
        color: #777;
        cursor: pointer;
        padding: 0;
        line-height: 1;
    }

    .modal-close-button:hover {
        color: #333;
    }

    #modal-title {
        margin-top: 0;
        margin-bottom: 15px;
        font-size: 1.3rem;
        padding-right: 30px;
    }

    #modal-body p {
        margin-top: 0;
        margin-bottom: 1em;
        line-height: 1.6;
    }

    #modal-body p:last-child {
        margin-bottom: 0;
    }

    body.modal-open {
        overflow: hidden;
    }
}

body {
    padding-top: var(--sticky-header-height);
    /* スティッキーヘッダー分の余白 */
}

html {
    scroll-padding-top: var(--sticky-header-height);
    /* スムーズスクロール時のオフセット */
    scroll-behavior: smooth;
}

@media (max-width: 768px) {
    body {
        padding: var(--sticky-header-height) 10px 10px;
        /* スマホ表示時のbodyパディング */
    }
}

#pageTopBtn {
    position: fixed;
    bottom: 10px;
    right: 10px;
    width: 36px;
    height: 54px;
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 50px;
    cursor: pointer;
    z-index: 999;
    display: block;
    text-decoration: none;
}

#pageTopBtn img {
    vertical-align: middle;
    width: 100%;
    height: 100%;
    object-fit: contain
}