/*
Theme Name: Studycation Core
Theme URI: https://studycation.jp/
Author: 合同会社Guild
Author URI: https://benriguild.com/
Description: 日本スタディケーション協会の独自テーマ。学び×滞在×地域をテーマにしたメディア型サイト。緑×琥珀のナチュラル知的デザイン。
Version: 0.1.0
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: studycation-core
*/

:root{
  --forest:#2F4A3C;   /* メイン（ブランド）*/
  --moss:#5C7A64;     /* 中間緑 */
  --amber:#C9763C;    /* アクセント（CTA）*/
  --amber-dk:#B0652E;
  --sand:#F4EFE6;     /* 生成り背景 */
  --cream:#FBF9F4;    /* 白背景 */
  --ink:#262320;      /* 墨黒テキスト */
  --ink-60:#5b554d;   /* 補助テキスト */
  --line:#E5DDcf;     /* 罫線 */
  --radius:16px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans JP",sans-serif;
  color:var(--ink);background:var(--cream);
  line-height:1.9;letter-spacing:.02em;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
.serif{font-family:"Noto Serif JP",serif}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(251,249,244,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-family:"Noto Serif JP";font-weight:600;font-size:19px;color:var(--forest)}
.logo .mark{width:30px;height:30px;flex:none}
.menu{display:flex;align-items:center;gap:30px;list-style:none}
.menu a{font-size:14.5px;font-weight:500;color:var(--ink-60);transition:color .2s}
.menu a:hover{color:var(--forest)}
.menu li{list-style:none}
.btn{display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;letter-spacing:.03em;padding:14px 30px;border-radius:999px;min-height:48px;transition:transform .15s, box-shadow .2s, background .2s;cursor:pointer}
.btn-primary{background:var(--amber);color:#fff;box-shadow:0 6px 18px rgba(201,118,60,.28)}
.btn-primary:hover{background:var(--amber-dk);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--forest);border:1.5px solid var(--forest)}
.btn-ghost:hover{background:var(--forest);color:#fff}
.nav .btn{padding:11px 24px;min-height:44px;font-size:14px}
.menu-toggle{display:none}

/* ===== Hero ===== */
.hero{position:relative;min-height:640px;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;z-index:0;background:linear-gradient(180deg,rgba(28,40,32,.30),rgba(28,40,32,.62)),url('https://images.unsplash.com/photo-1507525428034-b723cf961d3e?auto=format&fit=crop&w=1800&q=80') center/cover}
.hero .wrap{position:relative;z-index:1;padding-top:88px;padding-bottom:88px}
.hero .eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.22em;padding:7px 16px;border:1px solid rgba(255,255,255,.55);border-radius:999px;margin-bottom:26px}
.hero h1{font-family:"Noto Serif JP";font-weight:600;font-size:50px;line-height:1.42;letter-spacing:.02em;margin-bottom:24px;max-width:18em;text-shadow:0 2px 24px rgba(0,0,0,.25)}
.hero p.lead{font-size:18px;line-height:1.95;max-width:30em;margin-bottom:38px;color:rgba(255,255,255,.94)}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap}
.hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.8)}
.hero .btn-ghost:hover{background:#fff;color:var(--forest)}

/* ===== Section base ===== */
.sec{padding:96px 0}
.sec-head{text-align:center;max-width:40em;margin:0 auto 56px}
.kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.2em;color:var(--amber);margin-bottom:14px}
h2.title{font-family:"Noto Serif JP";font-weight:600;font-size:34px;line-height:1.45;color:var(--forest);margin-bottom:18px}
.sec-head p{font-size:16px;color:var(--ink-60);line-height:1.95}

/* ===== 定義 ===== */
.define{background:var(--sand)}
.define-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:center}
.define-grid .photo{border-radius:var(--radius);overflow:hidden;box-shadow:0 24px 60px rgba(47,74,60,.18);aspect-ratio:4/3}
.define-grid .photo img{width:100%;height:100%;object-fit:cover}
.define h2{font-family:"Noto Serif JP";font-weight:600;font-size:30px;line-height:1.5;color:var(--forest);margin-bottom:22px}
.define .word{color:var(--amber)}
.define p{font-size:16px;color:var(--ink);margin-bottom:18px}
.define .formula{display:inline-flex;gap:12px;align-items:center;font-family:"Noto Serif JP";font-weight:600;color:var(--moss);font-size:15px;margin-top:8px}
.define .formula b{color:var(--forest);font-size:17px}

/* ===== 3つの価値 ===== */
.values-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.vcard{background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);padding:38px 32px;transition:transform .2s,box-shadow .2s}
.vcard:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(47,74,60,.12)}
.vcard .ico{width:52px;height:52px;border-radius:14px;background:var(--sand);display:flex;align-items:center;justify-content:center;margin-bottom:22px}
.vcard .ico svg{width:26px;height:26px;stroke:var(--forest)}
.vcard h3{font-family:"Noto Serif JP";font-weight:600;font-size:20px;color:var(--forest);margin-bottom:12px}
.vcard p{font-size:14.5px;color:var(--ink-60);line-height:1.9}

/* ===== メディア（口コミ） ===== */
.media{background:var(--sand)}
.tabs{display:flex;justify-content:center;gap:10px;margin-bottom:42px;flex-wrap:wrap}
.tab{font-size:14px;font-weight:700;padding:10px 22px;border-radius:999px;border:1.5px solid var(--line);color:var(--ink-60);background:var(--cream);transition:.2s}
.tab.on,.tab:hover{background:var(--forest);color:#fff;border-color:var(--forest)}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.post{background:var(--cream);border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:transform .2s,box-shadow .2s}
.post:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(47,74,60,.14)}
.post .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--sand)}
.post .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.post:hover .thumb img{transform:scale(1.05)}
.post .body{padding:22px 22px 26px}
.post .cat{font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--amber)}
.post h3{font-family:"Noto Serif JP";font-weight:600;font-size:17px;line-height:1.6;color:var(--ink);margin:10px 0 0}
.post .date{font-size:12.5px;color:var(--ink-60);margin-top:14px}
.post .voice{display:flex;align-items:center;gap:9px;margin-top:14px;font-size:12.5px;color:var(--ink-60)}
.post .voice .who{width:26px;height:26px;border-radius:50%;object-fit:cover;flex:none}
.media .more{text-align:center;margin-top:48px}

/* ===== 活動事例 ===== */
.case .case-box{display:grid;grid-template-columns:1fr 1fr;border-radius:24px;overflow:hidden;box-shadow:0 30px 70px rgba(47,74,60,.16);background:var(--forest);color:#fff}
.case .case-box .img{min-height:420px;background:url('https://images.unsplash.com/photo-1528164344705-47542687000d?auto=format&fit=crop&w=1200&q=80') center/cover}
.case .case-box .txt{padding:60px 56px;display:flex;flex-direction:column;justify-content:center}
.case .tag{font-size:13px;font-weight:700;letter-spacing:.16em;color:#E9C9A4;margin-bottom:18px}
.case h3{font-family:"Noto Serif JP";font-weight:600;font-size:28px;line-height:1.5;margin-bottom:20px}
.case p{font-size:15.5px;color:rgba(255,255,255,.9);line-height:1.95;margin-bottom:28px}
.case .btn-ghost{color:#fff;border-color:rgba(255,255,255,.7);align-self:flex-start}
.case .btn-ghost:hover{background:#fff;color:var(--forest)}

/* ===== 協賛企業 ===== */
.partners{background:var(--cream)}
.partners .sec-head{margin-bottom:44px}
.logo-row{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;align-items:stretch}
.plogo{display:flex;align-items:center;justify-content:center;background:var(--sand);border:1px solid var(--line);border-radius:14px;min-height:96px;padding:18px;font-family:"Noto Serif JP";font-weight:600;color:var(--moss);font-size:15px;text-align:center;transition:.2s}
.plogo img{max-height:48px;width:auto;filter:grayscale(1);opacity:.78;transition:.2s}
.plogo:hover img{filter:grayscale(0);opacity:1}
.plogo.add{border-style:dashed;color:var(--amber);font-size:14px;flex-direction:column;gap:6px}
.plogo.add svg{width:24px;height:24px;stroke:var(--amber)}
.partners .note{text-align:center;margin-top:34px;font-size:14px;color:var(--ink-60)}
.partners .note a{color:var(--amber);font-weight:700;border-bottom:1px solid var(--amber);padding-bottom:1px}

/* ===== CTA ===== */
.cta{background:var(--cream)}
.cta-box{background:var(--sand);border-radius:24px;padding:72px 48px;text-align:center}
.cta-box h2{font-family:"Noto Serif JP";font-weight:600;font-size:32px;color:var(--forest);line-height:1.5;margin-bottom:18px}
.cta-box p{font-size:16px;color:var(--ink-60);max-width:32em;margin:0 auto 34px}

/* ===== Page（固定ページ・役員・汎用） ===== */
.page-head{background:var(--sand);padding:72px 0 64px;text-align:center}
.page-head .kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.2em;color:var(--amber);margin-bottom:14px}
.page-head h1{font-family:"Noto Serif JP";font-weight:600;font-size:38px;color:var(--forest);margin-bottom:14px}
.page-head p{font-size:16px;color:var(--ink-60);max-width:34em;margin:0 auto}
.crumbs{font-size:13px;color:var(--ink-60);margin-bottom:22px}
.crumbs a:hover{color:var(--forest)}
.lbl{text-align:center;font-family:"Noto Serif JP";font-weight:600;font-size:14px;letter-spacing:.18em;color:var(--moss);position:relative;margin-bottom:48px}
.lbl::before,.lbl::after{content:"";position:absolute;top:50%;width:80px;height:1px;background:var(--line)}
.lbl::before{left:calc(50% - 130px)}.lbl::after{right:calc(50% - 130px)}

/* 役員 */
.chair{display:grid;grid-template-columns:300px 1fr;gap:56px;align-items:center;background:var(--cream);border:1px solid var(--line);border-radius:24px;padding:48px;box-shadow:0 20px 50px rgba(47,74,60,.08)}
.chair .photo{aspect-ratio:1;border-radius:20px;overflow:hidden;background:var(--sand)}
.chair .photo img{width:100%;height:100%;object-fit:cover}
.chair .role{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.1em;color:#fff;background:var(--forest);padding:6px 16px;border-radius:999px;margin-bottom:16px}
.chair h2{font-family:"Noto Serif JP";font-weight:600;font-size:30px;color:var(--ink);margin-bottom:6px}
.chair .en{font-size:13.5px;color:var(--ink-60);letter-spacing:.06em;margin-bottom:8px}
.chair .title2{font-size:14px;color:var(--moss);font-weight:500;margin-bottom:20px}
.chair p{font-size:15px;color:var(--ink);line-height:1.95}
.board{background:var(--sand)}
.board-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.member{background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;text-align:center;padding:32px 22px}
.member .ava{width:104px;height:104px;border-radius:50%;margin:0 auto 18px;background:var(--sand);display:flex;align-items:center;justify-content:center;border:1px dashed var(--line);overflow:hidden}
.member .ava img{width:100%;height:100%;object-fit:cover}
.member .ava svg{width:42px;height:42px;stroke:var(--moss);opacity:.6}
.member .role{font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--amber);margin-bottom:8px}
.member h3{font-family:"Noto Serif JP";font-weight:600;font-size:18px;color:var(--ink)}
.member.soon h3{color:#b3ab9d;letter-spacing:.08em}
.member.soon .badge{display:inline-block;margin-top:10px;font-size:11.5px;color:var(--moss);background:var(--sand);border:1px solid var(--line);padding:4px 12px;border-radius:999px}

/* 記事本文 */
.entry{max-width:760px;margin:0 auto;padding:72px 24px 96px}
.entry .meta{font-size:13px;color:var(--ink-60);margin-bottom:14px}
.entry h1{font-family:"Noto Serif JP";font-weight:600;font-size:32px;line-height:1.55;color:var(--ink);margin-bottom:28px}
.entry .content{font-size:16.5px;line-height:1.95}
.entry .content p{margin-bottom:1.4em}
.entry .content h2{font-family:"Noto Serif JP";font-weight:600;font-size:24px;color:var(--forest);margin:2em 0 .8em}
.entry .content h3{font-family:"Noto Serif JP";font-weight:600;font-size:19px;color:var(--ink);margin:1.6em 0 .6em}
.entry .content img{border-radius:12px;margin:1.4em 0}
.entry .featured{border-radius:16px;overflow:hidden;margin-bottom:32px}

/* アーカイブ */
.archive-head{background:var(--sand);padding:64px 0 56px;text-align:center}
.archive-head h1{font-family:"Noto Serif JP";font-weight:600;font-size:32px;color:var(--forest)}
.archive-wrap{padding:72px 0 96px}
.pagination{display:flex;justify-content:center;gap:10px;margin-top:56px}
.pagination a,.pagination span{padding:10px 16px;border-radius:10px;border:1px solid var(--line);font-size:14px;color:var(--ink-60)}
.pagination .current{background:var(--forest);color:#fff;border-color:var(--forest)}

/* ===== Footer ===== */
.site-footer{background:var(--forest);color:rgba(255,255,255,.82);padding:64px 0 36px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.foot-grid .logo{color:#fff;margin-bottom:16px}
.foot-about{font-size:14px;line-height:1.95;color:rgba(255,255,255,.7);max-width:24em}
.foot-col h4{font-family:"Noto Serif JP";font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.foot-col a{display:block;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:11px;transition:color .2s}
.foot-col a:hover{color:#fff}
.copy{border-top:1px solid rgba(255,255,255,.16);padding-top:26px;font-size:12.5px;color:rgba(255,255,255,.55);text-align:center}

/* ===== Responsive ===== */
@media(max-width:880px){
  .menu{position:fixed;inset:72px 0 auto 0;flex-direction:column;background:var(--cream);border-bottom:1px solid var(--line);padding:18px 24px;gap:18px;display:none}
  .menu.open{display:flex}
  .menu-toggle{display:flex;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
  .menu-toggle span{width:24px;height:2px;background:var(--forest);display:block}
  .hero h1{font-size:33px}
  .hero p.lead{font-size:16px}
  .sec{padding:64px 0}
  .define-grid{grid-template-columns:1fr;gap:36px}
  .values-grid,.post-grid{grid-template-columns:1fr}
  .case .case-box{grid-template-columns:1fr}
  .case .case-box .img{min-height:240px}
  .case .case-box .txt{padding:40px 28px}
  .logo-row{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  h2.title{font-size:27px}
  .chair{grid-template-columns:1fr;gap:28px;padding:32px;text-align:center}
  .chair .photo{max-width:240px;margin:0 auto}
  .board-grid{grid-template-columns:1fr 1fr;gap:18px}
  .page-head h1{font-size:30px}
  .lbl::before,.lbl::after{display:none}
}