/* ============================================================
   UNION 株式会社ユニオン — design system
   light / clean / science × health. brown+orange brand, soft science teal.
   ============================================================ */
:root{
  --paper:#ffffff; --paper-2:#f4f7f7; --paper-warm:#faf7f3;
  --ink:#2b2622; --text:#4a443f; --muted:#8c847d; --line:#e9e6e1;
  --brand:#5e3b2c; --brand-2:#7a4d39;
  --accent:#ec8b3f; --accent-2:#d9772b;
  --mist:#7fa6b0; --mist-soft:#eef4f5;
  --container:1120px; --gutter:clamp(20px,5vw,64px); --header-h:78px;
  --f-display:"Noto Sans JP",sans-serif;
  --f-body:"Noto Sans JP",sans-serif;
  --f-en:"Jost","Noto Sans JP",sans-serif;
}
*,*::before,*::after{box-sizing:border-box} *{margin:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:var(--f-body);color:var(--text);background:var(--paper);line-height:1.9;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul{list-style:none;padding:0}
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}

/* JP natural line-break helper */
.phrase{display:inline-block}
.hero__title,.sec-title,.lead-catch,.contact-cta__title,.card__title,.philo__catch{word-break:keep-all;overflow-wrap:anywhere}
.sec-title,.lead-catch,.philo__catch,.contact-cta__title{text-wrap:balance}
.sec-lead,.hero__sub,.contact-cta__lead,.about__body p,.card__text,.philo__body p,.creed__text,.prose p{text-wrap:pretty}

/* eyebrow + title */
.eyebrow{font-family:var(--f-en);font-weight:600;font-size:13px;letter-spacing:.28em;color:var(--accent);text-transform:uppercase;display:inline-flex;align-items:center;gap:12px}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent)}
.sec-title{font-family:var(--f-display);font-weight:700;font-size:clamp(26px,4vw,40px);line-height:1.4;letter-spacing:.03em;color:var(--ink);margin-top:14px}
.sec-lead{color:var(--muted);margin-top:20px;max-width:760px}
.section{position:relative;padding-block:clamp(70px,9vw,120px)}
.section--tint{background:var(--paper-2)}
.section--warm{background:var(--paper-warm)}
.section__head{margin-bottom:52px}
.center{text-align:center} .center .eyebrow{justify-content:center} .center .sec-lead{margin-inline:auto}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:12px;font-family:var(--f-body);font-weight:700;font-size:15px;padding:15px 32px;border-radius:999px;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
.btn--primary{background:var(--accent);color:#fff;box-shadow:0 10px 26px rgba(236,139,63,.32)}
.btn--primary:hover{background:var(--accent-2);transform:translateY(-2px);box-shadow:0 16px 34px rgba(236,139,63,.42)}
.btn--ghost{border:1px solid var(--line);color:var(--ink);background:#fff}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn .arrow{font-family:var(--f-en)}

/* header */
.site-header{position:fixed;inset:0 0 auto 0;z-index:100;height:var(--header-h);display:flex;align-items:center;background:rgba(255,255,255,0);transition:background .3s,box-shadow .3s,height .3s}
.site-header.is-scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(10px);box-shadow:0 1px 0 rgba(0,0,0,.05);height:66px}
.site-header .container{display:flex;align-items:center;gap:28px;max-width:1240px}
.site-logo img{height:42px;width:auto}
.nav{margin-left:auto}
.nav ul{display:flex;gap:24px;align-items:center}
.nav a{font-weight:500;font-size:14.5px;color:var(--ink);position:relative;padding:6px 0}
.nav a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);transition:width .25s}
.nav a:hover::after{width:100%}
.header-cta{font-weight:700;font-size:14px;color:#fff;background:var(--accent);padding:11px 24px;border-radius:999px;transition:background .2s}
.header-cta:hover{background:var(--accent-2)}
.burger{display:none;margin-left:auto;background:none;border:0;cursor:pointer;padding:8px}
.burger span{display:block;width:26px;height:2px;background:var(--ink);margin:5px 0;transition:.3s}

/* hero — Pattern B: full-screen image, lower-left copy, VIEW MORE circle */
.hero{position:relative;background:#fff;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden}
.hero__media{position:absolute;inset:0;z-index:0}
.hero__media img{width:100%;height:100%;object-fit:cover;object-position:center}
.hero__scrim{position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(105deg,rgba(252,253,253,.95) 0%,rgba(252,253,253,.62) 30%,rgba(252,253,253,.12) 55%,transparent 76%)}
.hero .container{position:relative;z-index:2;width:100%;padding-bottom:clamp(60px,9vh,100px)}
.hero__copy{max-width:600px}
.hero__eyebrow{font-family:var(--f-en);font-weight:500;letter-spacing:.34em;color:var(--accent);font-size:14px;display:flex;align-items:center;gap:14px}
.hero__eyebrow::before{content:"";width:42px;height:1px;background:var(--accent)}
.hero__title{font-family:var(--f-display);font-weight:600;font-size:clamp(32px,4.5vw,60px);line-height:1.5;letter-spacing:.04em;color:var(--ink);margin-top:22px}
.hero__sub{margin-top:22px;color:#6f6760;font-size:15px;line-height:2;max-width:420px}
.hero__more{position:absolute;right:clamp(36px,5vw,80px);bottom:clamp(60px,9vh,100px);z-index:2;width:128px;height:128px;border:1px solid var(--ink);border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;font-family:var(--f-en);letter-spacing:.2em;font-size:12px;color:var(--ink);transition:background .25s,color .25s}
.hero__more:hover{background:var(--ink);color:#fff}
.hero__more .ar{font-size:18px;color:var(--accent)}
.hero__more:hover .ar{color:#fff}
@keyframes heroFade{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.js .hero__copy{opacity:0;animation:heroFade .9s cubic-bezier(.2,.7,.2,1) .15s forwards}
.js .hero__more{opacity:0;animation:heroFade .9s cubic-bezier(.2,.7,.2,1) .4s forwards}
.br-sp{display:inline}
.br-pc{display:inline}
.hero__scroll{display:none;flex-direction:column;align-items:center;gap:9px;position:absolute;left:50%;transform:translateX(-50%);bottom:22px;z-index:3;color:#3a342f}
.hero__scroll-txt{font-family:var(--f-en);font-size:11px;letter-spacing:.3em}
.hero__scroll-line{position:relative;width:1px;height:46px;background:rgba(43,38,34,.16);overflow:hidden}
.hero__scroll-line::after{content:"";position:absolute;left:0;top:-60%;width:100%;height:60%;background:var(--accent);animation:scrolldn 1.9s cubic-bezier(.6,0,.4,1) infinite}
@keyframes scrolldn{0%{top:-60%}60%,100%{top:110%}}

/* about */
.about{display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(28px,5vw,64px);align-items:center}
.about__media img{border-radius:8px;box-shadow:0 24px 50px rgba(45,80,90,.14)}
.lead-catch{font-family:var(--f-display);font-weight:700;font-size:clamp(22px,3vw,30px);line-height:1.6;color:var(--ink);margin:6px 0 22px}
.about__body{color:var(--text)} .about__body p+p{margin-top:1.2em}

/* business cards */
.cards{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-6px);box-shadow:0 26px 54px rgba(45,80,90,.14)}
.card__media{aspect-ratio:16/10;overflow:hidden;background:var(--mist-soft)}
.card__media img{width:100%;height:100%;object-fit:cover}
.card__body{padding:30px 30px 34px}
.card__label{font-family:var(--f-en);font-weight:600;font-size:12px;letter-spacing:.16em;color:var(--accent);text-transform:uppercase}
.card__title{font-family:var(--f-display);font-weight:700;font-size:22px;color:var(--ink);margin:10px 0 14px}
.card__text{color:var(--muted);font-size:14.5px;line-height:1.95}
.card__text p+p{margin-top:.9em}
.card__link{display:inline-flex;margin-top:18px;color:var(--accent);font-weight:700;font-size:14px;gap:8px}
.card__link:hover{gap:12px}

/* philosophy */
.philo{position:relative;overflow:hidden}
.philo .container{position:relative;z-index:1}
.philo__catch{font-family:var(--f-display);font-weight:700;font-size:clamp(24px,3.6vw,38px);line-height:1.6;color:var(--ink);text-align:center;margin-bottom:30px}
.philo__catch .accent{color:var(--accent)}
.philo__body{max-width:760px;margin:0 auto;text-align:center;color:var(--text)}
.philo__body p+p{margin-top:1.2em}
.creed{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:60px;max-width:880px;margin-inline:auto}
.creed__item{background:#fff;border:1px solid var(--line);border-radius:10px;padding:32px 30px;text-align:center}
.creed__label{font-family:var(--f-en);font-weight:600;letter-spacing:.2em;color:var(--mist);font-size:12px;text-transform:uppercase}
.creed__title{font-family:var(--f-display);font-weight:700;font-size:20px;color:var(--brand);margin:8px 0 14px}
.creed__text{color:var(--text);font-size:15px}

/* company */
.company{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,56px);align-items:start}
.spec{width:100%;border-collapse:collapse}
.spec th,.spec td{text-align:left;padding:16px 8px;border-bottom:1px solid var(--line);vertical-align:top;font-size:14.5px}
.spec th{width:110px;font-family:var(--f-display);font-weight:700;color:var(--ink);white-space:nowrap}
.spec td{color:var(--text)}
.map{width:100%;aspect-ratio:4/3;border:0;border-radius:10px;min-height:320px}

/* news */
.news-list{border-top:1px solid var(--line)}
.news-item{display:flex;gap:24px;align-items:baseline;padding:22px 6px;border-bottom:1px solid var(--line);transition:background .2s;flex-wrap:wrap}
.news-item:hover{background:var(--mist-soft)}
.news-date{font-family:var(--f-en);font-weight:600;color:var(--mist);letter-spacing:.04em}
.news-cat{font-size:12px;font-weight:700;color:#fff;background:var(--mist);padding:3px 12px;border-radius:999px}
.news-ttl{color:var(--text);flex:1 1 60%}
.news-item:hover .news-ttl{color:var(--accent)}

/* contact CTA */
.contact-cta{position:relative;background:linear-gradient(135deg,#eef4f5,#f7efe7);overflow:hidden}
.contact-cta .container{position:relative;z-index:1;text-align:center}
.contact-cta__title{font-family:var(--f-display);font-weight:700;font-size:clamp(24px,3.4vw,36px);color:var(--ink);margin:16px 0 18px}
.contact-cta__lead{color:var(--text);max-width:680px;margin:0 auto 32px}
.contact-actions{display:flex;gap:18px;justify-content:center;align-items:center;flex-wrap:wrap}
.tel-block{text-align:left}
.tel-block .tel{font-family:var(--f-en);font-weight:600;font-size:clamp(24px,3vw,34px);color:var(--brand);letter-spacing:.04em;display:flex;align-items:center;gap:10px}
.tel-block .hours{color:var(--muted);font-size:13px}

/* footer */
.site-footer{background:var(--brand);color:#efe7e0;padding-block:60px 28px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.foot-logo{background:#fff;display:inline-block;padding:12px 16px;border-radius:8px;margin-bottom:18px}
.foot-logo img{height:40px}
.foot-addr{font-size:13.5px;color:#d8c9bf;line-height:1.9}
.foot-nav h4{font-family:var(--f-en);font-weight:600;letter-spacing:.18em;font-size:12px;color:var(--accent);margin-bottom:16px}
.foot-nav li{margin-bottom:11px}
.foot-nav a{font-size:14px;color:#efe7e0;word-break:keep-all}
.foot-nav a:hover{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:46px;padding-top:22px;font-family:var(--f-en);letter-spacing:.06em;font-size:12px;color:#c9b6a9;text-align:center}

/* page hero / prose / single / form */
.page-hero{background:linear-gradient(180deg,#fbfdfd,#eef4f5);padding-top:calc(var(--header-h) + 56px);padding-bottom:50px}
.page-hero h1{font-family:var(--f-display);font-weight:700;font-size:clamp(26px,4vw,40px);color:var(--ink);margin-top:10px}
.crumb{font-family:var(--f-en);font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:14px}
.crumb a{color:var(--accent)} .crumb a:hover{text-decoration:underline}
.single-meta{display:flex;gap:16px;align-items:center;margin-top:14px}
.prose{max-width:820px;margin-inline:auto;padding-block:clamp(48px,7vw,76px);color:var(--text)}
.prose h2{font-family:var(--f-display);font-size:25px;color:var(--ink);margin:1.6em 0 .5em;padding-left:14px;border-left:4px solid var(--accent)}
.prose h3{font-family:var(--f-display);font-size:20px;color:var(--ink);margin:1.4em 0 .4em}
.prose p{margin-bottom:1.2em}
.prose a{color:var(--accent);text-decoration:underline}
.prose__thumb{margin:0 0 2em}.prose__thumb img{width:100%;border-radius:8px}
.page-hero .eyebrow{margin:2px 0 0}
.prose>p:first-of-type{font-size:17px;line-height:2.15;color:#3a342f}
/* post navigation (cards) */
.postnav{max-width:1000px;margin:6px auto 0;padding-bottom:90px;display:grid;grid-template-columns:1fr auto 1fr;gap:18px;align-items:center}
.postnav__col--next{display:flex;justify-content:flex-end}
.postnav__center{justify-self:center}
.postnav__card{display:flex;flex-direction:column;gap:7px;padding:18px 22px;border:1px solid var(--line);border-radius:12px;background:#fff;transition:border-color .2s,box-shadow .2s,transform .2s;max-width:340px}
.postnav__card:hover{border-color:var(--accent);box-shadow:0 14px 30px rgba(45,80,90,.1);transform:translateY(-3px)}
.postnav__card--next{align-items:flex-end;text-align:right}
.postnav__dir{font-family:var(--f-en);font-weight:600;font-size:12px;letter-spacing:.1em;color:var(--accent)}
.postnav__ttl{font-size:14px;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:290px}
.postnav__list{display:inline-flex;align-items:center;gap:10px;font-family:var(--f-en);font-weight:500;letter-spacing:.08em;font-size:13px;color:var(--ink);border:1px solid var(--ink);border-radius:999px;padding:14px 26px;transition:background .2s,color .2s;white-space:nowrap}
.postnav__list:hover{background:var(--ink);color:#fff}
.postnav__list-ic{width:13px;height:13px;border:2px solid currentColor;border-radius:3px;display:inline-block}
.post-nav{max-width:980px;margin:0 auto 90px;display:grid;grid-template-columns:1fr auto 1fr;gap:20px;align-items:center}
.post-nav__side a{display:inline-flex;flex-direction:column;gap:4px}
.post-nav__prev{text-align:left}.post-nav__next{text-align:right}.post-nav__next a{align-items:flex-end}
.post-nav__dir{font-family:var(--f-en);font-weight:600;font-size:12px;letter-spacing:.1em;color:var(--accent)}
.post-nav__ttl{font-size:13.5px;color:var(--muted);max-width:240px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* form */
.form{max-width:760px;margin-inline:auto;padding-block:clamp(46px,7vw,72px)}
.form .field{margin-bottom:24px}
.form label.flabel{display:block;font-family:var(--f-display);font-weight:700;margin-bottom:8px;color:var(--ink)}
.req{color:#fff;background:var(--accent);font-size:11px;padding:2px 8px;border-radius:4px;margin-right:8px;font-family:var(--f-en)}
.opt{color:var(--muted);background:var(--paper-2);font-size:11px;padding:2px 8px;border-radius:4px;margin-right:8px;font-family:var(--f-en)}
.form input,.form textarea,.form select{width:100%;padding:14px 16px;border:1px solid var(--line);border-radius:8px;font:inherit;font-size:16px;background:#fff;color:var(--text)}
.form input:focus,.form textarea:focus,.form select:focus{outline:2px solid var(--accent);border-color:transparent}
.form input[type=radio],.form input[type=checkbox]{width:auto;padding:0;border:0;accent-color:var(--accent)}
.radio-group{display:flex;flex-direction:column;gap:12px;margin-top:4px}
.radio{display:flex;align-items:center;gap:10px;cursor:pointer;font-size:15px;color:var(--text)}
.radio input{flex:0 0 auto}
.form textarea{min-height:170px;resize:vertical}
.form .consent{display:flex;gap:10px;align-items:flex-start;justify-content:center;margin:10px 0 24px;color:var(--text)}
.form .consent input{width:auto;margin-top:5px}
.form__submit{text-align:center}
.notice{padding:16px 20px;border-radius:8px;margin-bottom:24px}
.notice--ok{background:#eaf6ef;color:#1d7a47;border:1px solid #bfe6cf}
.notice--err{background:#fdeceb;color:#b3322a;border:1px solid #f3c6c2}

/* reveal */
.js .reveal{opacity:0;transform:translateY(22px);transition:opacity .7s,transform .7s}
.js .reveal.is-in{opacity:1;transform:none}

/* responsive */
@media (max-width:960px){
  .nav,.header-cta{display:none}.burger{display:block}
  .site-nav-open .nav{display:block;position:fixed;inset:var(--header-h) 0 auto 0;background:rgba(255,255,255,.98);padding:24px var(--gutter) 36px;box-shadow:0 12px 30px rgba(0,0,0,.08)}
  .site-nav-open .nav ul{flex-direction:column;gap:2px;align-items:stretch}
  .site-nav-open .nav a{display:block;padding:14px 0;border-bottom:1px solid var(--line)}
  .hero__grid,.about,.company,.cards,.creed{grid-template-columns:1fr}
  .hero{min-height:var(--app-vh,100svh);height:var(--app-vh,auto);display:block}
  .hero__scrim{background:linear-gradient(174deg,rgba(252,253,253,.96) 4%,rgba(252,253,253,.86) 24%,rgba(252,253,253,.4) 46%,rgba(252,253,253,0) 64%)}
  .hero .container{padding-top:calc(var(--header-h) + 34px);padding-bottom:0}
  .hero__copy{max-width:none}
  .hero__eyebrow{display:none}
  .hero__title::before{content:"";display:block;width:46px;height:3px;border-radius:2px;background:var(--accent);margin-bottom:22px}
  .hero__title{font-size:clamp(30px,8.4vw,40px);line-height:1.55}
  .hero__sub{max-width:none;color:#56666a}
  .hero__more{display:none}
  .br-sp{display:inline}
  .br-pc{display:none}
  .hero__scroll{display:flex}
  .about__media{order:-1}
  .foot-grid{grid-template-columns:1fr 1fr}.foot-logo{grid-column:1/-1}
}
@media (max-width:600px){
  body{font-size:15px}
  .news-item{gap:10px 16px}.news-ttl{flex-basis:100%}
  .contact-actions{flex-direction:column}
  .post-nav{grid-template-columns:1fr;text-align:center;gap:16px}.post-nav__center{order:-1}.post-nav__prev,.post-nav__next{text-align:center}.post-nav__next a{align-items:center}
  .postnav{grid-template-columns:1fr;gap:14px;padding-bottom:70px}
  .postnav__center{order:-1;justify-self:stretch}.postnav__list{display:flex;justify-content:center}
  .postnav__col--next{justify-content:flex-start}
  .postnav__card{max-width:none}.postnav__card--next{align-items:flex-start;text-align:left}
  .postnav__ttl{max-width:none;white-space:normal}
}
@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}.js .hero__copy,.js .hero__media,.js .hero__more{opacity:1;animation:none}.hero__scroll-line::after{animation:none}html{scroll-behavior:auto}}