/*
Theme Name: 小さなびわ湖水族館 オサカナラボ
Theme URI: https://nagahama-aquarium.com
Author: BolivianDevs
Description: 小さなびわ湖水族館 オサカナラボ（NPO法人 近江淡水生物研究所）公式サイト用テーマ。
Version: 0.2.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: nagahama-aquarium
*/
:root{--primary:#022F70;--secondary:#0F538F;--accent:#3E7CB1;--bg:#F5F6F8;--white:#fff;--text:#12211C;--muted:#5A6068;--line:#E4E7EB}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Noto Sans JP",sans-serif;color:var(--text);background:#fff;line-height:1.7;font-size:16px}
img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.btn{display:inline-block;background:var(--secondary);color:#fff;padding:14px 30px;border-radius:999px;font-weight:700;transition:.2s;font-size:15px}
.btn:hover{background:var(--primary)}
.btn-ghost{background:transparent;border:2px solid #fff;color:#fff}.btn-ghost:hover{background:#fff;color:var(--primary)}
.btn-sm{padding:8px 18px;font-size:13px}
.noimg{background:repeating-linear-gradient(45deg,#eef1f4,#eef1f4 12px,#e7ebef 12px,#e7ebef 24px);display:flex;align-items:center;justify-content:center;color:#9aa3ad;font-size:13px;font-weight:500;border-radius:12px;aspect-ratio:4/3}
.sec{padding:76px 0}
.sec-head{text-align:center;margin-bottom:48px}
.sec-head .en{display:block;color:var(--accent);font-weight:700;letter-spacing:.12em;font-size:13px;margin-bottom:6px}
.sec-head h2{font-size:30px;font-weight:900;color:var(--primary)}
.sec-head .bar{width:48px;height:4px;background:var(--secondary);border-radius:2px;margin:16px auto 0}
header{position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);z-index:50}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--primary);font-size:18px}
.logo img{height:46px;width:auto;display:block}
.logo small{display:block;font-size:11px;color:var(--muted);font-weight:500;letter-spacing:.05em}
.logo .mark{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--secondary),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px}
.menu{display:flex;gap:26px;font-weight:500;font-size:15px;list-style:none;margin:0;padding:0}
.menu a{color:var(--text);transition:.2s}.menu a:hover{color:var(--secondary)}.menu .current-menu-item a{color:var(--secondary);font-weight:700}
.burger{display:none;font-size:26px;color:var(--primary);background:none;border:none;cursor:pointer}
.hero{position:relative;min-height:560px;display:flex;align-items:center;color:#fff;background:linear-gradient(120deg,rgba(2,31,60,.86),rgba(15,83,143,.72)),radial-gradient(circle at 70% 30%,#2a6ca6,#022F70 70%)}
.badge{display:inline-block;background:#fff;color:var(--primary);font-weight:700;font-size:13px;padding:5px 14px;border-radius:999px;margin-bottom:18px}
.hero h1{font-size:44px;font-weight:900;line-height:1.35;margin-bottom:18px;text-shadow:0 2px 20px rgba(0,0,0,.25)}
.hero p{font-size:17px;max-width:540px;margin-bottom:30px;color:#eaf1f8}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px 22px;text-align:center;box-shadow:0 6px 20px rgba(2,31,60,.05);transition:.2s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(2,31,60,.1)}
.card .ic{width:60px;height:60px;border-radius:50%;background:var(--bg);display:flex;align-items:center;justify-content:center;font-size:28px;margin:0 auto 16px}
.card h3{font-size:17px;font-weight:700;color:var(--primary);margin-bottom:8px}
.card p{font-size:13.5px;color:var(--muted);flex:1;margin-bottom:16px}
.creatures{background:var(--bg)}
.grid5{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.crt{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 4px 14px rgba(2,31,60,.06)}
.crt .noimg{border-radius:0;aspect-ratio:1/1}.crt .name{padding:12px;text-align:center;font-weight:700;font-size:14px;color:var(--primary)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.block-title{font-size:20px;font-weight:900;color:var(--primary);margin-bottom:20px;display:flex;align-items:center;gap:10px}
.block-title::before{content:"";width:6px;height:22px;background:var(--secondary);border-radius:3px}
.ev{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.ev .date{background:var(--primary);color:#fff;border-radius:10px;min-width:80px;text-align:center;padding:8px 6px;font-weight:700;line-height:1.25;font-size:13px}
.ev .txt h4{font-size:15px;font-weight:700;margin-bottom:2px}.ev .txt p{font-size:13px;color:var(--muted)}
.more{display:inline-block;margin-top:18px;color:var(--secondary);font-weight:700;font-size:14px}
.map iframe{width:100%;height:280px;border:0;border-radius:12px}
.access-info{margin-top:16px;font-size:14px;color:var(--muted)}
.access-info dt{font-weight:700;color:var(--text);margin-top:10px}
.page-content{max-width:820px;margin:0 auto;padding:60px 20px}
.page-content h1{color:var(--primary);font-size:30px;font-weight:900;margin-bottom:24px}
.page-content h2{color:var(--primary);margin:28px 0 12px}
.page-content p{margin-bottom:16px}
footer{background:var(--primary);color:#cdd8e6;padding:52px 0 26px}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px}
.foot .logo{color:#fff}.foot .logo small{color:#a9bdd6}.foot .logo .mark{background:rgba(255,255,255,.15)}
.fmenu{display:flex;gap:22px;flex-wrap:wrap;font-size:14px;list-style:none;margin:0;padding:0}.fmenu a:hover{color:#fff}
.copy{margin-top:34px;border-top:1px solid rgba(255,255,255,.15);padding-top:18px;font-size:12px;color:#95a7bd}
@media(max-width:900px){.grid3{grid-template-columns:1fr}.grid5{grid-template-columns:repeat(3,1fr)}.two{grid-template-columns:1fr}.hero h1{font-size:34px}.menu{display:none}.burger{display:block}
.logo img{height:40px}
.menu.open{display:flex;flex-direction:column;gap:0;position:absolute;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:8px 20px;box-shadow:0 12px 24px rgba(2,31,60,.1)}
.menu.open a{padding:15px 4px;border-bottom:1px solid var(--line);font-size:16px}
.menu.open a:last-child{border-bottom:none}
.menu.open .current-menu-item a{color:var(--secondary)}}
@media(max-width:520px){.grid5{grid-template-columns:repeat(2,1fr)}.hero{min-height:480px}.hero h1{font-size:28px}}