/* =============================================================================
   テンプレート「アクア」 v0.1
   青緑のメニューバー（横幅いっぱい）、灰色のグラデーションの見出し、角の丸い白い箱のサイドメニュー。
   さわらびＦ＆Ｃクラブの旧デザインの雰囲気。画像は使わず CSS だけで描く。スマホ対応。スクリプトは使わない。
   ============================================================================= */
:root {
  --c-primary: #29b8e7;
  --c-nav: #1a9aab;        /* 上のメニューの帯の色 */
  --c-page-bg: #f1f1f1;
  --c-text: #333333;
  --c-soft: #f5f5f5;
  --c-line: #d9d9d9;
  --c-link: #1a5fb4;
  --c-muted: #666;
  --page: 980px;
  --side: 220px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--c-page-bg); color: var(--c-text); font-family: var(--font-body); font-size: 15px; line-height: 1.8; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; z-index: 100; background: #fff; padding: .5em 1em; }
.page { max-width: var(--page); margin: 0 auto; background: #fff; box-shadow: 0 0 8px rgba(0,0,0,.12); min-height: 100vh; }
.cms-content a { color: var(--c-link); }

/* ---- ヘッダー（白・横幅いっぱい）・メニューバー（青緑・横幅いっぱい） ---- */
.site-header { position: relative; background: #fff; box-shadow: 0 0 0 100vmax #fff; clip-path: inset(0 -100vmax); }
.header-in { display: flex; flex-wrap: wrap; align-items: center; }
.brand { padding: 20px 24px 16px; font-size: 1.5rem; font-weight: 700; color: #1d6f7a; text-decoration: none; letter-spacing: .04em; }
.brand img { display: block; width: auto; max-width: min(70vw, 420px); object-fit: contain; }
.main-nav { width: 100%; --nav-bg: linear-gradient(#63c6d2, color-mix(in srgb, var(--c-nav) 92%, #fff) 45%, color-mix(in srgb, var(--c-nav) 85%, #000));
  background: var(--nav-bg); border-top: 1px solid color-mix(in srgb, var(--c-nav) 70%, #000); border-bottom: 1px solid color-mix(in srgb, var(--c-nav) 70%, #000);
  box-shadow: 0 0 0 100vmax color-mix(in srgb, var(--c-nav) 88%, #000); clip-path: inset(0 -100vmax); }
.main-nav > ul { display: flex; list-style: none; margin: 0; padding: 0; }
.main-nav > ul > li { position: relative; border-right: 1px solid rgba(255,255,255,.35); }
.main-nav > ul > li:first-child { border-left: 1px solid rgba(255,255,255,.35); }
.main-nav > ul > li > a { position: relative; display: block; padding: 8px 26px 12px; color: #fff; text-decoration: none; font-weight: 700; font-size: .92rem;
  letter-spacing: .04em; white-space: nowrap; text-shadow: 0 1px 1px rgba(0,0,0,.25); }
.main-nav > ul > li > a::after { content: ""; position: absolute; left: 50%; bottom: 3px; translate: -50% 0; border: 4px solid transparent; border-top: 5px solid #fff; border-bottom: 0; opacity: .9; }
.main-nav > ul > li > a:hover { background: rgba(255,255,255,.16); }
.main-nav > ul > .is-active > a { background: rgba(0,0,0,.14); box-shadow: inset 0 -3px 0 #fff; }
/* 項目が多いメニュー（7つ以上）は、間隔と文字を詰めて1行に収める（パソコンの幅のとき） */
@media (min-width: 761px) {
  .main-nav > ul:has(> li:nth-child(7)) > li { flex: 1 1 auto; }
  .main-nav > ul:has(> li:nth-child(7)) > li > a { padding-left: 8px; padding-right: 8px; text-align: center; font-size: .84rem; letter-spacing: 0; }
}
.nav-toggle, .nav-btn { display: none; }
.util-nav { margin-left: auto; margin-right: 18px; align-self: flex-start; padding-top: 12px; }
.util-nav ul { display: flex; list-style: none; margin: 0; padding: 0; gap: .4em; }
.util-nav a { display: inline-block; font-size: .75rem; color: #444; text-decoration: none; padding: .2em .8em; border: 1px solid #ccc; border-radius: 4px;
  background: linear-gradient(#fff, #ececec); }
.util-nav a:hover { border-color: var(--c-primary); }

/* ---- パンくず（家の印・▶の区切り・青いリンク） ---- */
.crumbs { font-size: .78rem; color: #555; padding: 10px 12px 8px; }
.crumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .3em; align-items: center; }
.crumbs li:first-child::before { content: ""; display: inline-block; width: 10px; height: 9px; margin-right: .35em; background: #888;
  clip-path: polygon(50% 0, 100% 50%, 85% 50%, 85% 100%, 15% 100%, 15% 50%, 0 50%); }
.crumbs li + li::before { content: ""; display: inline-block; margin-right: .3em; border: 3.5px solid transparent; border-left: 5px solid var(--c-primary); border-right: 0; }
.crumbs a { color: var(--c-link); text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.crumbs li:last-child a { color: #333; }

/* ---- 2カラム ---- */
.cols { display: grid; grid-template-columns: minmax(0, 1fr) var(--side); align-items: stretch; }
.cols.side-left { grid-template-columns: var(--side) minmax(0, 1fr); }
.cols.side-left .side-nav { order: -1; }
.cols > main { padding: 16px 20px 50px; }
.one-col { padding: 22px 30px 50px; }
.full { padding: 30px 0 50px; }
.full > [data-block] { padding-inline: 30px; }

/* ---- サイドメニュー（灰色の地に、角の丸い白い箱。青緑の▶） ---- */
.side-nav { background: linear-gradient(90deg, #ececec, #f4f4f4 85%, #e9e9e9); padding: 14px 10px 30px; }
.side-title { display: none; }
.side-menu ul { list-style: none; margin: 0; padding: 0; }
.side-menu > ul > li { margin-bottom: 6px; }
.side-menu > ul > li > a { position: relative; display: block; padding: 9px 10px 9px 24px; color: #333; text-decoration: none; font-weight: 700; font-size: .88rem;
  line-height: 1.45; background: linear-gradient(#fff, #f7f7f7); border: 1px solid #cfcfcf; border-radius: 5px; text-shadow: 1px 1px 1px rgba(0,0,0,.12); }
.side-menu a::before { content: ""; position: absolute; left: 11px; top: 50%; translate: 0 -50%; border: 4px solid transparent; border-left: 5px solid var(--c-primary); border-right: 0; }
.side-menu > ul > li > a:hover { border-color: var(--c-primary); }
.side-menu > ul > .is-current > a, .side-menu > ul > .is-active > a { background: linear-gradient(#f3f9fd, #e9f3fa); }
.side-menu ul ul { margin: 4px 0 2px 10px; }
.side-menu ul ul a { position: relative; display: block; padding: 4px 6px 4px 22px; color: #333; text-decoration: none; font-size: .82rem; border-bottom: 1px dotted #c4c4c4; }
.side-menu ul ul a::before { left: 9px; }
.side-menu ul ul a:hover { color: var(--c-primary); }
.side-menu ul ul .is-current > a { color: var(--c-primary); font-weight: 700; }

/* ---- 部品の見た目の上書き（アクアの見出し） ---- */
.t-aqua .cms-content { line-height: 1.9; font-size: .95rem; --block-gap: 1.4rem; }
/* ページの大見出し: 灰色のグラデーションの箱に、左の青緑の帯と▶ */
.t-aqua [data-block="heading"] h1, .t-aqua .cms-content h2 { position: relative; margin: 0; padding: .45em .8em .45em 1.6em; border: 1px solid #cfcfcf; border-radius: 2px;
  background: linear-gradient(#fdfdfd, #ececec); color: #444; font-weight: 400; letter-spacing: .05em; }
.t-aqua [data-block="heading"] h1 { font-size: 1.35rem; }
.t-aqua .cms-content h2 { font-size: 1.05rem; }
.t-aqua [data-block="heading"] h1::before, .t-aqua .cms-content h2::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 9px; border-radius: 1px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--c-primary) 75%, #fff), var(--c-primary)); }
.t-aqua [data-block="heading"] h1::after, .t-aqua .cms-content h2::after { content: ""; position: absolute; left: 10px; top: 50%; translate: 0 -50%;
  border: 3px solid transparent; border-left: 4px solid #fff; border-right: 0; }
.t-aqua .cms-content h3 { font-size: 1rem; padding: 0 0 .2em .2em; border-bottom: 2px solid color-mix(in srgb, var(--c-primary) 35%, #fff); color: #1d6f7a; }
.t-aqua .cms-content h4 { font-size: .95rem; padding-left: 1em; position: relative; }
.t-aqua .cms-content h4::before { content: ""; position: absolute; left: 0; top: .5em; border: 4px solid transparent; border-left: 6px solid var(--c-primary); border-right: 0; }
.t-aqua [data-block="steps"] li > h3, .t-aqua [data-block="cards"] .b-card h3 { border: 0; padding: 0; color: inherit; }
.t-aqua [data-block="snippet"] { background: #fff; border: 1px solid #cfcfcf; border-radius: 4px; padding: 0; overflow: hidden; }
.t-aqua [data-block="snippet"] > h3:first-child { background: linear-gradient(#fdfdfd, #ececec); border-bottom: 1px solid #cfcfcf; margin: 0; padding: .4em 1em; color: #444; }
.t-aqua [data-block="snippet"] > :not(h3:first-child) { margin-inline: 1.2em; }
.t-aqua [data-block="snippet"] > :last-child { margin-bottom: 1em; }
.t-aqua [data-block="snippet"] > h3:first-child + * { margin-top: .8em; }
.t-aqua [data-block="textpic"] .b-media img, .t-aqua [data-block="image"] img { border-radius: 2px; }

/* ニュース一覧: 青緑の▶と点線の区切り */
.t-aqua [data-block="news"] ul { border-top: 0; }
.t-aqua [data-block="news"] li { position: relative; padding: .55em .2em .55em 1.2em; border-bottom: 1px dotted #bdbdbd; gap: 1em; }
.t-aqua [data-block="news"] li::before { content: ""; position: absolute; left: .2em; top: 1.05em; border: 3.5px solid transparent; border-left: 5px solid var(--c-primary); border-right: 0; }
.t-aqua [data-block="news"] time { color: #333; min-width: 7.6em; }
.t-aqua [data-block="news"] a { color: var(--c-link); text-decoration: underline; text-underline-offset: 2px; }
.t-aqua [data-block="news"] .b-more a { text-decoration: none; }
.t-aqua .b-news-cats li::before { display: none; }

/* ---- トップのメインビジュアル ---- */
.hero { background: #333 center / cover no-repeat; color: #fff; }
.hero-in { min-height: clamp(240px, 40vw, 420px); display: flex; flex-direction: column; justify-content: center; padding: 30px 40px;
  background: linear-gradient(90deg, rgba(0,0,0,.4), rgba(0,0,0,.05) 70%); text-shadow: 1px 1px 4px rgba(0,0,0,.7); }
.hero-sub { margin: 0; font-size: .8rem; letter-spacing: .2em; }
.hero-title { margin: .2em 0 0; font-size: clamp(1.4rem, 1rem + 1.8vw, 2.1rem); font-weight: 700; line-height: 1.45; word-break: auto-phrase; text-wrap: balance; }
.hero-text { margin: .9em 0 0; max-width: 30em; font-size: .88rem; line-height: 1.8; }
.hero-text:empty { display: none; }

/* ---- フッター（薄い灰色のグラデーション・横幅いっぱい） ---- */
.site-footer { font-size: .82rem; background: linear-gradient(#ececec, #f8f8f8 40%, #fff); border-top: 1px solid #d4d4d4;
  box-shadow: 0 0 0 100vmax #f6f6f6; clip-path: inset(0 -100vmax); }
.footer-nav ul { list-style: none; margin: 0; padding: 10px 12px 4px; display: flex; flex-wrap: wrap; gap: .2em 1.5em; }
.footer-nav li { position: relative; padding-left: 15px; }
.footer-nav li::before { content: ""; position: absolute; left: 0; top: .45em; width: 10px; height: 10px; border-radius: 50%; background: color-mix(in srgb, var(--c-primary) 45%, #9fc6ea); }
.footer-nav li::after { content: ""; position: absolute; left: 3.5px; top: calc(.45em + 2.5px); border: 2.5px solid transparent; border-left: 3.5px solid #fff; border-right: 0; }
.footer-nav a { color: var(--c-link); text-decoration: none; font-size: .78rem; }
.footer-nav a:hover { text-decoration: underline; }
.footer-in { display: flex; flex-direction: column; align-items: flex-end; gap: .3em; padding: 12px 24px 10px; text-align: right; }
.site-info p { margin: 0; }
.site-info a { color: inherit; }
.footer-name { margin: 0; font-weight: 700; font-size: 1rem; color: #1d6f7a; }
.copy { margin: 0 12px; padding: 6px 0 16px; border-top: 1px dotted #cfcfcf; text-align: center; font-size: .7rem; letter-spacing: .04em; color: #222; text-transform: uppercase; }

/* ---- スマホ ---- */
@media (max-width: 760px) {
  body { font-size: 15px; background: #fff; }
  .page { box-shadow: none; }
  .brand { padding: 14px 16px; font-size: 1.15rem; }
  .brand img { max-height: 40px; }
  .util-nav { padding-top: 0; margin-right: 0; align-self: center; }
  .nav-btn { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; margin-left: auto; margin-right: 8px;
    width: 48px; height: 44px; cursor: pointer; }
  .nav-btn span { display: block; width: 24px; height: 2px; background: var(--c-primary); transition: transform .2s, opacity .2s; }
  .nav-btn b { font-size: .6rem; font-weight: 400; line-height: 1; margin-top: 2px; color: #333; }
  .nav-toggle { display: block; position: absolute; opacity: 0; width: 1px; height: 1px; }
  .main-nav { display: none; box-shadow: none; clip-path: none; }
  .nav-toggle:checked ~ .main-nav { display: block; }
  .nav-toggle:checked + .nav-btn span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle:checked + .nav-btn span:nth-child(2) { opacity: 0; }
  .nav-toggle:checked + .nav-btn span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav-toggle:focus-visible + .nav-btn { outline: 2px solid var(--c-primary); }
  .main-nav > ul { flex-direction: column; padding: 0; }
  .main-nav > ul > li, .main-nav > ul > li:first-child { border: 0; border-top: 1px solid rgba(255,255,255,.3); }
  .main-nav > ul > li > a { padding: 12px 18px; }
  .main-nav > ul > li > a::after { display: none; }
  .main-nav > ul > .is-active > a { box-shadow: inset 4px 0 0 #fff; }
  .cols, .cols.side-left { grid-template-columns: 1fr; }
  .cols.side-left .side-nav { order: 0; }
  .cols > main, .one-col { padding: 16px 16px 36px; }
  .full > [data-block] { padding-inline: 16px; }
  .side-menu { padding: 10px; background: #f1f1f1; }
  .side-title { display: block; margin: 0 0 8px; padding: .5em .8em; background: var(--c-primary); color: #fff; font-weight: 700; font-size: .9rem; border-radius: 4px; }
  .hero-in { padding: 24px 18px; }
  .site-footer { box-shadow: none; clip-path: none; }
  .footer-in { align-items: flex-start; text-align: left; }
  .copy { text-align: left; }
}

/* パンくずが空（トップ）なら出さない */
.crumbs:empty { display: none; }

/* 帯（高さ「帯」のメインビジュアル）: 区画の名前を出す明るい灰色の帯。写真を入れれば写真の帯になる */
.t-aqua [data-block="hero"][data-height="band"] { background: linear-gradient(#fafafa, #e9e9e9); color: #555; border: 1px solid #d4d4d4; border-bottom-color: #c6c6c6;
  box-shadow: 0 2px 3px rgba(0,0,0,.08); --hero-h: 110px; }
.t-aqua [data-block="hero"][data-height="band"] .b-hero-slide::after { background: linear-gradient(90deg, #f7f7f7 0%, rgba(247,247,247,.9) 35%, rgba(255,255,255,0) 75%); }
.t-aqua [data-block="hero"][data-height="band"] .b-hero-text { padding-inline: 34px; text-shadow: 1px 1px 0 #fff, 2px 2px 3px rgba(0,0,0,.12); }
.t-aqua [data-block="hero"][data-height="band"] .b-hero-sub { color: #777; letter-spacing: .12em; opacity: 1; }
.t-aqua [data-block="hero"][data-height="band"] .b-hero-title { font-size: 1.35rem; letter-spacing: .06em; font-weight: 400; }
@media (max-width: 640px) {
  .t-aqua [data-block="hero"][data-height="band"] { --hero-h: 72px; }
  .t-aqua [data-block="hero"][data-height="band"] .b-hero-text { padding-inline: 16px; }
  .t-aqua [data-block="hero"][data-height="band"] .b-hero-title { font-size: 1.15rem; }
}

/* ドロップダウン・メガメニュー（メニューバーと同じ青緑） */
.main-nav .sub, .main-nav .mega { background: color-mix(in srgb, var(--c-primary) 92%, #000); box-shadow: 0 8px 20px rgba(0,0,0,.25); }
.main-nav .sub a, .main-nav .mega a { color: #fff; font-size: .86rem; padding: 8px 20px; }
.main-nav .sub a:hover, .main-nav .mega a:hover { background: rgba(255,255,255,.15); }
.main-nav .mega a { padding: 4px 0; }
.main-nav .mega-h { border-left: 3px solid #fff; padding-left: 8px !important; font-size: .92rem !important; }
.main-nav .mega ul a { padding-left: 11px; opacity: .92; }
.main-nav .sub .is-current > a, .main-nav .mega .is-current > a { text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 760px) { .main-nav .sub, .main-nav .mega { box-shadow: none; } .main-nav .sub a, .main-nav .mega a { border-top: 1px solid rgba(255,255,255,.15); padding-top: 10px; padding-bottom: 10px; } .main-nav .mega-h { border-left: 0; } }

.t-aqua { --mega-gap: 3px; }   /* メニューの文字の下端から、メガメニューのパネルまでのすき間 */

/* ---- サイドの部品（メニューの上・下。左枠・右枠はメニューなし）
   スマホでは、上の部品 → 本文 → メニュー → 下の部品 の順に並べる ---- */
.side-area:not(:empty) + .side-menu, .side-menu + .side-area:not(:empty), .side-top:not(:empty) + .side-bottom:not(:empty) { margin-top: 14px; }
@media (max-width: 760px) {
  .cols > .side-nav { display: contents; }
  .cols > .side-nav > .side-top { order: -1; }
  .cols > .side-nav > .side-menu { order: 1; }
  .cols > .side-nav > .side-bottom { order: 2; }
  .cols > .side-nav > .side-area { padding: 12px 16px; }
}