/*
Theme Name: Nishihata Business
Theme URI: https://nishihata-eng.jp
Description: 西畑エンジニアリング 事業紹介ページ専用テーマ
Author: OneCraft
Author URI: https://onecraft-ne.jp
Version: 1.1.0
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: nishihata-business
*/

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --green:#4a6741;--green-light:#5c7d52;--green-dark:#3a5234;
  --gold:#9e8a4f;--gold-light:#b8a468;--gold-dark:#7d6d3d;
  --bg:#f8f6f1;--bg-white:#fdfcf9;--bg-warm:#f3f0e8;--bg-dark:#2a2a26;
  --text:#3d3d3a;--text-muted:#73726c;--text-light:#9c9a92;
  --border:#ddd9ce;
  --serif:'Noto Serif JP',serif;
  --sans:'Noto Sans JP','Hiragino Kaku Gothic ProN',sans-serif;
  --mw:1060px;
}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--text);background:var(--bg);line-height:1.9;font-size:15px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}

/* HEADER */
.header{position:fixed;top:0;left:0;width:100%;z-index:100;transition:background .4s,box-shadow .4s}
.header--transparent{background:transparent}
.header--solid{background:rgba(253,252,249,.97);box-shadow:0 1px 8px rgba(0,0,0,.05)}
.header__inner{max-width:1200px;margin:0 auto;padding:0 28px;height:76px;display:flex;align-items:center;justify-content:space-between}
.header__logo a{display:flex;align-items:center;text-decoration:none}
.header__logo img{height:28px;width:auto;transition:filter .3s}
.header--transparent .header__logo img{filter:none}
.header--solid .header__logo img{filter:none}
.header__nav{display:flex;align-items:center;gap:32px}
.header__links{display:flex;gap:28px;list-style:none}
.header__links a{text-decoration:none;font-size:13px;font-weight:400;letter-spacing:.06em;position:relative;padding:4px 0;transition:color .3s}
.header--transparent .header__links a{color:rgba(255,255,255,.8)}
.header--transparent .header__links a:hover{color:#fff}
.header--solid .header__links a{color:var(--text-muted)}
.header--solid .header__links a:hover{color:var(--green)}
.header__links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:1px;background:currentColor;transition:width .3s}
.header__links a:hover::after{width:100%}
.header__cta-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 22px;font-size:12px;font-weight:500;letter-spacing:.08em;text-decoration:none;transition:all .3s}
.header--transparent .header__cta-btn{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.25)}
.header--transparent .header__cta-btn:hover{background:rgba(255,255,255,.2)}
.header--solid .header__cta-btn{background:var(--green);color:#fff;border:1px solid var(--green)}
.header--solid .header__cta-btn:hover{background:var(--green-dark)}
.hamburger{display:none;flex-direction:column;justify-content:center;gap:5px;width:28px;height:28px;background:none;border:none;cursor:pointer;padding:0}
.hamburger span{display:block;width:100%;height:1.5px;border-radius:1px;transition:all .3s}
.header--transparent .hamburger span{background:#fff}
.header--solid .hamburger span{background:var(--text)}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.mobile-nav{display:none;position:fixed;inset:0;top:76px;background:rgba(253,252,249,.98);z-index:99;padding:40px 28px;flex-direction:column}
.mobile-nav.open{display:flex}
.mobile-nav a{display:block;padding:16px 0;font-size:15px;font-weight:400;color:var(--text);text-decoration:none;border-bottom:1px solid var(--border)}
.mobile-nav__cta{display:flex;align-items:center;justify-content:center;margin-top:24px;padding:14px 0;background:var(--green);color:#fff;text-decoration:none;font-weight:500;font-size:14px;letter-spacing:.06em}
@media(max-width:768px){.header__links,.header__cta-btn{display:none}.hamburger{display:flex}}

/* HERO (shorter page hero) */
.page-hero{position:relative;height:50vh;min-height:340px;max-height:480px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.page-hero__bg{position:absolute;inset:0;background:var(--bg-dark)}
.page-hero__bg img{width:100%;height:100%;object-fit:cover;opacity:.35}
.page-hero__ov{position:absolute;inset:0;background:linear-gradient(180deg,rgba(42,42,38,.1) 0%,rgba(42,42,38,.6) 100%)}
.page-hero__in{position:relative;z-index:2;text-align:center;color:#fff;padding:0 24px}
.page-hero__tag{font-size:11px;letter-spacing:5px;text-transform:uppercase;color:rgba(255,255,255,.5);margin-bottom:20px;font-family:var(--sans);opacity:0;animation:fu .8s .3s forwards}
.page-hero__title{font-family:var(--serif);font-size:clamp(30px,5vw,48px);font-weight:400;letter-spacing:.1em;opacity:0;animation:fu .8s .5s forwards}
@keyframes fu{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}

/* SECTIONS */
.sec{padding:110px 24px}
.sec--warm{background:var(--bg-warm)}
.sec--white{background:var(--bg-white)}
.sec--dark{background:var(--bg-dark);color:#fff}
.sec__inner{max-width:var(--mw);margin:0 auto}
.sec__head{text-align:center;margin-bottom:72px}
.sec__en{font-size:11px;letter-spacing:5px;text-transform:uppercase;color:var(--gold);font-weight:400;margin-bottom:16px;font-family:var(--sans)}
.sec--dark .sec__en{color:var(--gold-light)}
.sec__title{font-family:var(--serif);font-size:clamp(24px,3.5vw,34px);font-weight:400;line-height:1.5;letter-spacing:.06em}
.sec__lead{margin-top:20px;font-size:14px;color:var(--text-muted);max-width:600px;margin-left:auto;margin-right:auto;line-height:2.2;letter-spacing:.02em}
.sec--dark .sec__lead{color:rgba(255,255,255,.5)}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;gap:10px;padding:16px 40px;font-size:13px;font-weight:500;letter-spacing:.08em;text-decoration:none;border:none;cursor:pointer;transition:all .35s cubic-bezier(.22,.61,.36,1);font-family:var(--sans)}
.btn--white{background:#fff;color:var(--text);font-weight:500}
.btn--white:hover{background:rgba(255,255,255,.9);transform:translateY(-2px);box-shadow:0 8px 28px rgba(0,0,0,.1)}
.btn--green{background:var(--green);color:#fff}
.btn--green:hover{background:var(--green-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(74,103,65,.3)}
.btn--gold{background:var(--gold);color:#fff;font-weight:500;padding:18px 48px;font-size:14px}
.btn--gold:hover{background:var(--gold-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(158,138,79,.3)}
.btn--outline{background:transparent;color:var(--green);border:1px solid var(--border);font-weight:400}
.btn--outline:hover{border-color:var(--green);background:rgba(74,103,65,.04)}
.btn svg{width:16px;height:16px;transition:transform .3s}.btn:hover svg{transform:translateX(4px)}

/* OVERVIEW CARDS */
.ov-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.ov-card{position:relative;overflow:hidden;text-decoration:none;display:flex;flex-direction:column;justify-content:flex-end;min-height:240px;padding:36px 32px;transition:transform .3s,box-shadow .3s}
.ov-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(0,0,0,.1)}
.ov-card__bg{position:absolute;inset:0;background:var(--bg-dark)}
.ov-card__bg img{width:100%;height:100%;object-fit:cover;opacity:.25;transition:opacity .4s}
.ov-card:hover .ov-card__bg img{opacity:.35}
.ov-card__ov{position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(42,42,38,.85) 100%)}
.ov-card__content{position:relative;z-index:1;color:#fff}
.ov-card__en{font-size:10px;letter-spacing:4px;text-transform:uppercase;color:rgba(255,255,255,.4);margin-bottom:8px;font-family:var(--sans)}
.ov-card__title{font-family:var(--serif);font-size:clamp(18px,2.5vw,24px);font-weight:400;letter-spacing:.06em;margin-bottom:8px}
.ov-card__desc{font-size:12px;color:rgba(255,255,255,.5);letter-spacing:.04em}
.ov-card__arrow{position:absolute;top:24px;right:24px;width:32px;height:32px;border:1px solid rgba(255,255,255,.15);border-radius:50%;display:flex;align-items:center;justify-content:center;z-index:1;transition:border-color .3s}
.ov-card:hover .ov-card__arrow{border-color:rgba(255,255,255,.4)}

/* DIVISION SECTION */
.div-intro{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;margin-bottom:72px}
.div-intro--reverse{direction:rtl}
.div-intro--reverse>*{direction:ltr}
.div-intro__img{aspect-ratio:4/3;background:var(--bg-warm);overflow:hidden;position:relative}
.div-intro__img img{width:100%;height:100%;object-fit:cover}
.div-intro__logo{height:36px;width:auto;margin-bottom:20px}
.div-intro__text h3{font-family:var(--serif);font-size:clamp(20px,3vw,28px);font-weight:400;margin-bottom:20px;line-height:1.55;letter-spacing:.06em}
.div-intro__text p{color:var(--text-muted);line-height:2.2;font-size:14px;letter-spacing:.02em;margin-bottom:14px}
.img-ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:13px;background:var(--bg-warm)}

/* SERVICE CARDS */
.svc-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:24px}
.svc-card{background:var(--bg-white);padding:28px 24px;position:relative;border-left:2px solid var(--border);transition:border-color .3s,transform .3s}
.svc-card:hover{border-color:var(--green);transform:translateY(-2px)}
.svc-card__title{font-family:var(--serif);font-size:15px;font-weight:400;letter-spacing:.04em;margin-bottom:10px;line-height:1.5}
.svc-card__desc{font-size:13px;color:var(--text-muted);line-height:1.9;letter-spacing:.02em}
.svc-banner{background:var(--green);color:#fff;padding:20px 28px;display:flex;align-items:center;justify-content:space-between}
.svc-banner__text{font-family:var(--serif);font-size:15px;font-weight:400;letter-spacing:.04em}
.svc-banner__sub{font-size:12px;color:rgba(255,255,255,.5)}

/* WEB DIVISION cards */
.web-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.web-card{background:var(--bg-white);padding:32px 28px;border-left:2px solid var(--border);transition:border-color .3s,transform .3s}
.web-card:hover{border-color:var(--gold);transform:translateY(-2px)}
.web-card__title{font-family:var(--serif);font-size:15px;font-weight:400;letter-spacing:.04em;margin-bottom:10px;line-height:1.5}
.web-card__desc{font-size:13px;color:var(--text-muted);line-height:1.9;letter-spacing:.02em}
.web-link{display:inline-flex;align-items:center;gap:10px;margin-top:32px;padding:14px 32px;font-size:13px;letter-spacing:.06em;text-decoration:none;color:var(--text);border:1px solid var(--border);font-family:var(--sans);font-weight:400;transition:all .3s}
.web-link:hover{border-color:var(--gold);color:var(--gold)}
.web-link svg{width:14px;height:14px;transition:transform .3s}
.web-link:hover svg{transform:translate(3px,-3px)}

/* STRENGTHS */
.str-row{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:48px}
.str-item{text-align:center}
.str-item__num{font-family:var(--serif);font-size:20px;font-weight:400;color:var(--green);letter-spacing:.04em;margin-bottom:8px;display:block}
.str-item__title{font-family:var(--serif);font-size:16px;font-weight:400;letter-spacing:.04em;margin-bottom:10px}
.str-item__desc{font-size:13px;color:var(--text-muted);line-height:1.9}
.str-divider{width:32px;height:1px;background:var(--border);margin:12px auto}

/* NUMBERS */
.num-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.num-item{text-align:center;padding:32px 16px}
.num-item__val{font-family:var(--serif);font-size:clamp(36px,5vw,52px);font-weight:300;color:var(--gold-light);letter-spacing:.04em;line-height:1.2;margin-bottom:4px}
.num-item__unit{font-size:14px;color:rgba(255,255,255,.35);letter-spacing:.04em}
.num-item__label{font-size:12px;color:rgba(255,255,255,.4);margin-top:8px;letter-spacing:.04em}

/* CTA */
.cta-bar{text-align:center;padding:88px 24px;background:var(--bg-warm);position:relative}
.cta-bar__title{font-family:var(--serif);font-size:clamp(20px,3vw,28px);font-weight:400;letter-spacing:.06em;margin-bottom:16px}
.cta-bar__sub{font-size:14px;color:var(--text-muted);margin-bottom:36px;line-height:2}
.cta-bar__btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* FOOTER */
.footer{background:var(--bg-dark);color:rgba(255,255,255,.6);padding:80px 24px 0}
.footer__inner{max-width:var(--mw);margin:0 auto}
.footer__top{display:grid;grid-template-columns:260px 1fr;gap:64px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.06)}
.footer__brand{display:flex;flex-direction:column;gap:24px}
.footer__logo img{height:24px;width:auto}
.footer__address{font-size:12px;line-height:2;color:rgba(255,255,255,.35)}
.footer__address a{color:rgba(255,255,255,.45);text-decoration:none}
.footer__address a:hover{color:rgba(255,255,255,.8)}
.footer__nav{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.footer__nav-group h4{font-size:10px;font-weight:400;letter-spacing:.08em;color:rgba(255,255,255,.25);text-transform:uppercase;margin-bottom:18px}
.footer__nav-group ul{list-style:none}
.footer__nav-group li{margin-bottom:10px}
.footer__nav-group a{font-size:13px;color:rgba(255,255,255,.5);text-decoration:none;transition:color .3s}
.footer__nav-group a:hover{color:rgba(255,255,255,.85)}
.footer__bottom{display:flex;justify-content:space-between;align-items:center;padding:24px 0;font-size:11px;color:rgba(255,255,255,.2)}
.footer__bottom a{color:rgba(255,255,255,.3);text-decoration:none;margin-left:20px}
.footer__bottom a:hover{color:rgba(255,255,255,.6)}
.pagetop{position:fixed;bottom:24px;right:24px;width:44px;height:44px;background:var(--green);color:#fff;border:none;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .3s,transform .3s;z-index:90;box-shadow:0 4px 12px rgba(0,0,0,.12)}
.pagetop.visible{opacity:1;pointer-events:auto}
.pagetop:hover{transform:translateY(-3px);background:var(--green-dark)}

/* RESPONSIVE */
@media(max-width:768px){
  .ov-cards{grid-template-columns:1fr}
  .div-intro{grid-template-columns:1fr;gap:32px}
  .div-intro--reverse{direction:ltr}
  .div-intro__img{order:-1}
  .svc-cards{grid-template-columns:1fr}
  .web-cards{grid-template-columns:1fr}
  .str-row{grid-template-columns:1fr;gap:24px}
  .sec{padding:72px 20px}
  .header__cta-btn{white-space:nowrap;font-size:11px;padding:8px 16px}
  .svc-banner{flex-direction:column;gap:8px;text-align:center}
  .footer__top{grid-template-columns:1fr;gap:40px}
  .footer__nav{grid-template-columns:repeat(3,1fr);gap:16px}
  .footer__bottom{flex-direction:column;gap:8px;text-align:center}
}
@media(max-width:480px){
  .footer__nav{grid-template-columns:1fr 1fr}
}

.reveal{opacity:0;transform:translateY(20px);transition:opacity .8s,transform .8s}
.reveal.visible{opacity:1;transform:translateY(0)}