/*
Theme Name: Obriginy Koumuten
Theme URI: https://obriginy.co.jp/
Author: 株式会社オブリジニ
Author URI: https://obriginy.co.jp/
Description: 工務店・住宅会社向けのオリジナルテーマ。ページビルダーに依存せず、施工事例・お客様の声・お知らせ・見学会をカスタム投稿タイプで運用します。写真を主役にした表示と、ライブラリ非依存のスクロール演出を実装。
Version: 1.0.1
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: obriginy-koumuten
Tags: custom-post-type, responsive, one-column, custom-menu
*/

/* ============================================================
   1. 設計トークン
   ============================================================ */
:root{
  --c-bg:#fbfaf8;
  --c-surface:#ffffff;
  --c-text:#26302b;
  --c-muted:#6d7a72;
  --c-line:#e3e0d9;
  --c-accent:#3d5a4a;      /* 深緑 */
  --c-accent-d:#2c4437;
  --c-earth:#a9895f;       /* アース */
  --wrap:1120px;
  --gap:clamp(20px,4vw,40px);
  --r:4px;
  --ff:"Yu Gothic Medium","Yu Gothic","Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;
  --ff-h:"Yu Mincho","Hiragino Mincho ProN","Noto Serif JP",serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:var(--ff);font-size:16px;line-height:1.9;
  font-feature-settings:"palt";
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-accent);text-underline-offset:.2em}
a:hover{color:var(--c-accent-d)}
h1,h2,h3,h4{font-family:var(--ff-h);font-weight:600;line-height:1.4;letter-spacing:.04em;margin:0}
p{margin:0 0 1.4em}

.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gap)}
.wrap--narrow{max-width:760px}
.section{padding-block:clamp(56px,9vw,112px)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* 見出し */
.s-head{margin-bottom:clamp(28px,5vw,52px)}
.s-head__en{
  display:block;font-family:var(--ff);font-size:12px;letter-spacing:.22em;
  color:var(--c-earth);text-transform:uppercase;margin-bottom:10px;
}
.s-head__ja{font-size:clamp(22px,3.4vw,32px)}
.s-head__lead{color:var(--c-muted);font-size:15px;margin-top:14px;max-width:46em}

/* ============================================================
   2. ヘッダー
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(251,250,248,.92);
  backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid var(--c-line);
}
.site-header__in{display:flex;align-items:center;gap:24px;min-height:68px}
.site-brand{font-family:var(--ff-h);font-size:19px;letter-spacing:.08em;text-decoration:none;color:var(--c-text)}
.site-brand small{display:block;font-family:var(--ff);font-size:10px;letter-spacing:.18em;color:var(--c-muted);margin-top:2px}
.site-nav{margin-left:auto}
.site-nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0}
.site-nav a{font-size:13.5px;text-decoration:none;color:var(--c-text);letter-spacing:.06em}
.site-nav a:hover{color:var(--c-accent)}
.header-cta{
  display:inline-block;background:var(--c-accent);color:#fff;text-decoration:none;
  font-size:13.5px;padding:11px 20px;border-radius:var(--r);letter-spacing:.06em;
}
.header-cta:hover{background:var(--c-accent-d);color:#fff}
.nav-toggle{display:none;background:none;border:1px solid var(--c-line);border-radius:var(--r);padding:9px 12px;cursor:pointer;font-size:13px}

@media(max-width:900px){
  .nav-toggle{display:block;margin-left:auto}
  .site-nav{
    margin-left:0;position:absolute;inset:68px 0 auto;background:var(--c-surface);
    border-bottom:1px solid var(--c-line);padding:10px var(--gap) 22px;display:none;
  }
  .site-nav.is-open{display:block}
  .site-nav ul{flex-direction:column;gap:0}
  .site-nav li{border-bottom:1px solid var(--c-line)}
  .site-nav a{display:block;padding:14px 2px}
  .header-cta{display:none}
}

/* ============================================================
   3. ヒーロー（スクロール連動・写真4枚）
   ============================================================ */
.hero{position:relative;height:min(92vh,780px);overflow:hidden;background:#26302b}
.hero__stage{position:absolute;inset:0}
.hero__slide{
  position:absolute;inset:0;opacity:0;
  transform:scale(1.06);
  transition:opacity 1.1s ease,transform 1.6s ease;
  will-change:opacity,transform;
}
.hero__slide.is-active{opacity:1;transform:scale(1)}
.hero__slide img{width:100%;height:100%;object-fit:cover}
.hero__slide--ph:nth-child(1){background:linear-gradient(160deg,#4a6250,#2c3a31)}
.hero__slide--ph:nth-child(2){background:linear-gradient(160deg,#7d6a4f,#3b332a)}
.hero__slide--ph:nth-child(3){background:linear-gradient(160deg,#5c6b5f,#28322b)}
.hero__slide--ph:nth-child(4){background:linear-gradient(160deg,#8a7355,#332c24)}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,26,22,.34) 0%,rgba(20,26,22,.08) 45%,rgba(20,26,22,.52) 100%);
}
.hero__copy{
  position:absolute;z-index:2;left:0;right:0;bottom:clamp(48px,9vh,96px);
  color:#fff;
}
.hero__copy h1{
  font-size:clamp(24px,4.4vw,44px);line-height:1.55;
  text-shadow:0 2px 24px rgba(0,0,0,.42);
}
.hero__copy p{
  margin-top:16px;font-size:clamp(13px,1.6vw,15px);letter-spacing:.1em;
  color:rgba(255,255,255,.88);text-shadow:0 2px 16px rgba(0,0,0,.5);
}
.hero__dots{position:absolute;z-index:2;right:var(--gap);bottom:clamp(48px,9vh,96px);display:flex;flex-direction:column;gap:9px}
.hero__dot{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.35);transition:background .3s,transform .3s}
.hero__dot.is-active{background:#fff;transform:scale(1.5)}
@media(max-width:768px){
  .hero{height:min(74vh,560px)}
  .hero__slide{transition:opacity .9s ease}
  .hero__slide.is-active{transform:none}
  .hero__dots{display:none}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .hero__slide{transition:opacity .3s linear;transform:none!important}
  .reveal{opacity:1!important;transform:none!important}
}

/* ============================================================
   4. スクロールで浮かび上がる
   ============================================================ */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .8s ease,transform .8s ease}
.reveal.is-in{opacity:1;transform:none}

/* ============================================================
   5. 施工事例カード
   ============================================================ */
.card-grid{display:grid;gap:clamp(20px,3vw,32px);grid-template-columns:repeat(auto-fill,minmax(290px,1fr))}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.card a{text-decoration:none;color:inherit;display:flex;flex-direction:column;height:100%}
.card__thumb{aspect-ratio:4/3;overflow:hidden;background:#e7e3db}
.card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.card:hover .card__thumb img{transform:scale(1.045)}
.card__body{padding:18px 20px 22px;flex:1;display:flex;flex-direction:column}
.card__meta{font-size:11.5px;letter-spacing:.14em;color:var(--c-earth);margin-bottom:8px}
.card__title{font-size:17px;line-height:1.6;margin-bottom:10px}
.card__spec{margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);font-size:12.5px;color:var(--c-muted);display:flex;flex-wrap:wrap;gap:4px 16px}

/* 事例詳細 */
.work-hero{aspect-ratio:16/9;overflow:hidden;background:#e7e3db;border-radius:var(--r)}
.work-hero img{width:100%;height:100%;object-fit:cover}
.spec-table{width:100%;border-collapse:collapse;margin:32px 0;font-size:14.5px}
.spec-table th,.spec-table td{border-bottom:1px solid var(--c-line);padding:13px 4px;text-align:left;vertical-align:top}
.spec-table th{width:9em;color:var(--c-muted);font-weight:500}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin:32px 0}
.gallery img{aspect-ratio:4/3;object-fit:cover;border-radius:var(--r)}
.voice{background:var(--c-surface);border-left:3px solid var(--c-earth);padding:22px 24px;border-radius:0 var(--r) var(--r) 0}

/* 絞り込み */
.taxfilter{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:32px}
.taxfilter a{
  font-size:13px;text-decoration:none;color:var(--c-text);
  border:1px solid var(--c-line);border-radius:999px;padding:7px 16px;background:var(--c-surface);
}
.taxfilter a:hover,.taxfilter a[aria-current]{background:var(--c-accent);border-color:var(--c-accent);color:#fff}

/* ============================================================
   6. 汎用パーツ
   ============================================================ */
.btn{
  display:inline-block;background:var(--c-accent);color:#fff;text-decoration:none;
  padding:15px 34px;border-radius:var(--r);font-size:14.5px;letter-spacing:.08em;
  transition:background .2s;
}
.btn:hover{background:var(--c-accent-d);color:#fff}
.btn--ghost{background:transparent;border:1px solid var(--c-accent);color:var(--c-accent)}
.btn--ghost:hover{background:var(--c-accent);color:#fff}
.center{text-align:center}
.mt-l{margin-top:clamp(32px,5vw,56px)}

.list-news{list-style:none;margin:0;padding:0}
.list-news li{border-bottom:1px solid var(--c-line)}
.list-news a{display:flex;gap:20px;padding:18px 2px;text-decoration:none;color:inherit;flex-wrap:wrap}
.list-news time{font-size:13px;color:var(--c-muted);min-width:6.5em;letter-spacing:.06em}
.list-news a:hover .t{color:var(--c-accent)}

.cta{background:var(--c-accent);color:#fff;text-align:center}
.cta h2{font-size:clamp(20px,3vw,28px);color:#fff}
.cta p{color:rgba(255,255,255,.86);margin-top:14px}
.cta .btn{background:#fff;color:var(--c-accent);margin-top:26px}
.cta .btn:hover{background:#f0efe9;color:var(--c-accent-d)}

/* フッター */
.site-footer{background:#26302b;color:rgba(255,255,255,.78);padding-block:56px 30px;font-size:14px}
.site-footer a{color:rgba(255,255,255,.78);text-decoration:none}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;gap:32px;grid-template-columns:1.4fr 1fr 1fr}
.footer-copy{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);font-size:12px;color:rgba(255,255,255,.5)}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr}}

/* 本文 */
.entry-content h2{font-size:22px;margin:2em 0 .8em;padding-bottom:.4em;border-bottom:1px solid var(--c-line)}
.entry-content h3{font-size:18px;margin:1.8em 0 .6em}
.entry-content ul,.entry-content ol{padding-left:1.4em}
.entry-content img{border-radius:var(--r);margin-block:1.2em}

.pagination{display:flex;gap:8px;justify-content:center;margin-top:48px;flex-wrap:wrap}
.pagination .page-numbers{
  display:inline-block;padding:9px 15px;border:1px solid var(--c-line);
  border-radius:var(--r);text-decoration:none;background:var(--c-surface);font-size:14px;
}
.pagination .page-numbers.current{background:var(--c-accent);border-color:var(--c-accent);color:#fff}