/*
Theme Name: 北びわこまち活研究所
Description: 合同会社北びわこまち活研究所 コーポレートサイト用オリジナルテーマ(ページビルダー不使用)
Version: 1.0.0
Text Domain: kitabiwako
*/
:root{--ink:#14161f;--navy:#161a2b;--gray:#f4f5f7;--line:#dfe1e6;--accent:#e616ae;--lake:#2c6e8f;--max:1080px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Noto Sans JP",system-ui,sans-serif;color:var(--ink);line-height:1.9;background:#fff;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
.en{font-family:"Montserrat","Noto Sans JP",sans-serif}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.site-title{font-weight:700;font-size:15px;text-decoration:none;letter-spacing:.04em}
.gnav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0}
.gnav a{font-family:"Montserrat",sans-serif;font-size:13px;font-weight:600;letter-spacing:.12em;text-decoration:none}
.gnav a:hover{color:var(--accent)}
html{scroll-padding-top:60px}
.admin-bar .site-header{top:32px}
@media(max-width:782px){.admin-bar .site-header{top:46px}}
main{margin:0;padding:0}

/* hamburger (mobile) */
.menu-toggle{display:none}
@media(max-width:767px){
 .site-header{backdrop-filter:none;background:#fff}
 .menu-toggle{display:block;position:relative;z-index:70;width:44px;height:44px;margin-right:-8px;padding:0;border:0;background:none;cursor:pointer}
 .menu-toggle span{position:absolute;left:11px;right:11px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s,opacity .2s,background .3s}
 .menu-toggle span:nth-child(1){top:15px}
 .menu-toggle span:nth-child(2){top:21px}
 .menu-toggle span:nth-child(3){top:27px}
 .menu-open .menu-toggle span{background:#fff}
 .menu-open .menu-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
 .menu-open .menu-toggle span:nth-child(2){opacity:0}
 .menu-open .menu-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
 .menu-open .site-title{position:relative;z-index:70;color:#fff}
 .gnav{position:fixed;inset:0;z-index:60;width:100vw;height:100vh;height:100dvh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#1d4e68 0%,#161a2b 100%);opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}
 .menu-open .gnav{opacity:1;visibility:visible}
 .gnav ul{flex-direction:column;align-items:center;gap:36px}
 .gnav a{color:#fff;font-size:24px;letter-spacing:.2em}
 .gnav a:hover{color:#fff;opacity:.7}
 .gnav li{opacity:0;transform:translateY(12px);transition:opacity .4s,transform .4s}
 .menu-open .gnav li{opacity:1;transform:none}
 .menu-open .gnav li:nth-child(2){transition-delay:.06s}
 .menu-open .gnav li:nth-child(3){transition-delay:.12s}
 .menu-open .gnav li:nth-child(4){transition-delay:.18s}
 body.menu-open{overflow:hidden}
}

/* hero */
.hero{position:relative;min-height:78vh;display:flex;align-items:center;color:#fff;background:var(--navy) center/cover no-repeat;clip-path:polygon(0 0,100% 0,100% 88%,0 100%);padding-bottom:6vh}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.25),rgba(0,0,0,.45))}
.hero .wrap{position:relative;width:100%}
.hero h1{font-family:"Montserrat",sans-serif;font-weight:700;font-size:clamp(40px,8vw,88px);line-height:1.05;margin:0 0 20px;letter-spacing:-.02em}
.hero p{margin:0;font-size:clamp(14px,2vw,18px);letter-spacing:.08em}

/* sections */
.section{padding:96px 0}
.section.gray{background:var(--gray)}
.sec-title{font-family:"Montserrat",sans-serif;font-weight:700;font-size:clamp(32px,5vw,52px);line-height:1.1;margin:0 0 12px}
.sec-lead{font-weight:700;font-size:18px;margin:0 0 40px}
.mission-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px;list-style:none;padding:0;margin:0;counter-reset:m}
.mission-list li{counter-increment:m;background:#fff;border:1px solid var(--line);border-top:3px solid var(--lake);padding:24px 24px 26px 68px;position:relative}
.mission-list h3{margin:0 0 8px;font-size:16px;line-height:1.6}
.mission-list p{margin:0;font-size:14px;line-height:1.9;color:#454956}
.mission-list li::before{content:counter(m);position:absolute;left:22px;top:20px;font-family:"Montserrat",sans-serif;font-size:26px;font-weight:700;color:var(--lake)}

.catch{position:relative;color:#fff;text-align:center;padding:140px 0;background:var(--navy) center/cover no-repeat;clip-path:polygon(0 8%,100% 0,100% 92%,0 100%);margin:-40px 0}
.catch::before{content:"";position:absolute;inset:0;background:rgba(12,12,12,.62)}
.catch h2{position:relative;font-family:"Montserrat",sans-serif;font-size:clamp(26px,5vw,48px);line-height:1.3;margin:0}

.members{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.members img{width:100%;aspect-ratio:4/3;object-fit:cover}
.member-list{display:grid;grid-template-columns:1fr 1fr;gap:28px 20px;list-style:none;padding:0;margin:0}
.member-list b{display:block;font-size:20px}
.member-list span{font-family:"Montserrat",sans-serif;font-size:12px;color:#555}

.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
@media(max-width:767px){.gallery{grid-template-columns:1fr 1fr}}
.gallery figure{margin:0}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover}
.gallery figcaption{margin-top:10px;text-align:center;font-weight:700;font-size:14px;letter-spacing:.06em}

.news-list{list-style:none;margin:0 0 32px;padding:0;border-top:1px solid var(--line)}
.news-list li{border-bottom:1px solid var(--line)}
.news-list a{display:flex;gap:24px;padding:18px 4px;text-decoration:none}
.news-list time{font-family:"Montserrat",sans-serif;font-size:13px;color:#777;min-width:100px}
.news-list a:hover{color:var(--accent)}
.btn{display:inline-block;padding:14px 36px;background:var(--accent);color:#fff;text-decoration:none;font-weight:700;letter-spacing:.06em}
.btn:hover{opacity:.85}
.btn.dark{background:#000}
.center{text-align:center}

/* contact (CTA) */
.contact{position:relative;overflow:hidden;color:#fff;text-align:center;padding:110px 0 120px;background:linear-gradient(135deg,#1d4e68 0%,#2c6e8f 45%,#161a2b 100%)}
.contact::before,.contact::after{content:"";position:absolute;left:0;right:0;background-repeat:no-repeat;background-size:100% 100%;pointer-events:none}
.contact::before{bottom:0;height:240px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 240' preserveAspectRatio='none'%3E%3Cpath fill='white' fill-opacity='.08' d='M0 240V150l150-70 120 60 200-110 160 100 150-60 180 90 180-120 170 110 130-50V240z'/%3E%3Cpath fill='white' fill-opacity='.07' d='M0 240V190l180-50 160 40 220-80 200 70 200-60 240 80 240-50V240z'/%3E%3C/svg%3E");}
.contact::after{top:48px;height:60px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60' preserveAspectRatio='none'%3E%3Cpath fill='none' stroke='white' stroke-opacity='.18' stroke-width='2' d='M0 20q90-20 180 0t180 0 180 0 180 0 180 0 180 0 180 0 180 0'/%3E%3Cpath fill='none' stroke='white' stroke-opacity='.12' stroke-width='2' d='M0 42q90-20 180 0t180 0 180 0 180 0 180 0 180 0 180 0 180 0'/%3E%3C/svg%3E");}
.contact .wrap{position:relative;z-index:1}
.contact-eyebrow{margin:0 0 10px;font-weight:700;letter-spacing:.3em;font-size:13px;opacity:.85}
.contact-title{margin:0 0 16px;font-size:clamp(24px,4.4vw,40px);line-height:1.5}
.contact-lead{margin:0 0 36px;opacity:.9}
.contact-tel{display:inline-flex;align-items:center;gap:14px;padding:20px 48px;background:#fff;color:var(--ink);border-radius:999px;text-decoration:none;font-size:clamp(24px,5vw,36px);font-weight:700;box-shadow:0 10px 30px rgba(0,0,0,.28);transition:transform .2s,box-shadow .2s}
.contact-tel svg{color:var(--accent)}
.contact-tel:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(0,0,0,.35)}
.sp{display:none}
@media(max-width:767px){.sp{display:inline}.contact{padding:80px 0 88px}.contact-tel{padding:16px 30px}}

/* footer */
.site-footer{background:var(--navy);color:#cfd3e4;padding:56px 0 32px;font-size:13px}
.site-footer .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.company{font-style:normal;display:grid;gap:4px;line-height:1.8}
.company strong{color:#fff;font-size:15px}
.company a{text-decoration:none}
.sns a{display:inline-flex;width:40px;height:40px;border-radius:50%;background:#3b5998;color:#fff;align-items:center;justify-content:center;text-decoration:none;font-weight:700}
.copy{width:100%;text-align:center;margin-top:24px;opacity:.7}

/* prev / next */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:64px;padding-top:32px;border-top:1px solid var(--line)}
.post-nav-item{display:flex;align-items:center;gap:14px;padding:12px;border:1px solid var(--line);text-decoration:none;transition:border-color .2s,background .2s;min-width:0}
.post-nav-item:hover{border-color:var(--lake);background:var(--gray)}
.post-nav-item.next{grid-column:2;flex-direction:row-reverse;text-align:right}
.post-nav-item.prev:only-child{grid-column:1}
.post-nav-thumb{flex:0 0 96px;width:96px;aspect-ratio:1/1;background:var(--gray);overflow:hidden}
.entry .post-nav-thumb img{width:100%;height:100%;object-fit:cover;margin:0;transition:transform .4s}
.post-nav-item:hover .post-nav-thumb img{transform:scale(1.08)}
.post-nav-body{display:flex;flex-direction:column;gap:2px;min-width:0}
.post-nav-label{font-size:11px;font-weight:700;letter-spacing:.14em;color:var(--lake)}
.post-nav-item time{font-size:12px;color:#777}
.post-nav-title{font-weight:700;font-size:14px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
@media(max-width:767px){.post-nav{grid-template-columns:1fr}.post-nav-item.next{grid-column:1}}

/* inner pages */
.page-head{background:var(--gray);padding:28px 0 24px}
.page-head time{display:block;font-size:13px;line-height:1.4;color:#666;margin-bottom:6px}
.page-head h1{margin:0;font-size:clamp(22px,3.6vw,32px);line-height:1.5}
.entry{padding:40px 20px 80px;max-width:820px;overflow-wrap:anywhere}
.entry img{margin:24px auto;height:auto}
.entry figure{margin:24px 0}
.entry figure img{margin:0 auto}
.entry iframe,.entry video,.entry embed{max-width:100%}
.entry table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse}
.entry td,.entry th{border:1px solid var(--line);padding:8px 12px}
.entry a{color:var(--lake);text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}
.entry .post-nav a,.entry .btn{color:inherit;text-decoration:none}
.entry .btn.dark{color:#fff}
@media(max-width:767px){.entry{padding:28px 20px 64px;font-size:15px}}
.pagination{margin-top:32px;display:flex;gap:8px;flex-wrap:wrap}
.pagination a,.pagination span{padding:6px 14px;border:1px solid var(--line);text-decoration:none}
.pagination .current{background:var(--ink);color:#fff}

.reveal{opacity:0;transform:translateY(24px);transition:.7s}
.reveal.in{opacity:1;transform:none}
@media(max-width:767px){
 .section{padding:64px 0}
 .members{grid-template-columns:1fr;gap:32px}
 .gnav ul{gap:16px}
 .site-title{font-size:13px}
 .news-list a{flex-direction:column;gap:2px}
}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}