/* ============================================================
   合同会社ソール
   軸: 定款3 ウェブサイトの企画・制作・運営及び管理
   構成: hero=四つ割りの写真の上に見出しを置く / 図版=横に広い写真を下に敷く /
        事業=段差をつけたカード / 手順=矢印でつなぐ / 対応範囲なし
   動き: 登場=四つのマスが順に開く／カードが下から差し込む
        ・ スクロール=見出しが左に貼りつく ・ ホバー=矢印が伸びて枠が消える
   文章: 社名の比喩に寄せない。体言止めを使わない。（design-brief.md）
   ============================================================ */
:root{
  --bg:#f7f5f0;
  --bg-2:#ffffff;
  --sand:#e5ded1;
  --ink:#23241f;
  --ink-2:#54564d;
  --ink-3:#8c8e84;
  --midori:#2f5d50;
  --midori-d:#1f3f36;
  --hair:rgba(35,36,31,.14);
  --wrap:1160px;
  --pad:clamp(1.3rem,4.5vw,4.2rem);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"Noto Sans JP",system-ui,-apple-system,Meiryo,sans-serif;background:var(--bg);color:var(--ink);
  line-height:2.05;font-size:15.5px;letter-spacing:.035em;overflow-x:hidden;-webkit-font-smoothing:antialiased;
  line-break:strict;word-break:auto-phrase}
p,li,dd,td,.a,.sub,.lead{text-wrap:pretty}
h1,h2,h3,h4{text-wrap:balance;line-break:strict;word-break:auto-phrase}
.nb{white-space:nowrap}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
::selection{background:var(--midori);color:#fff}
.lat{font-family:"Oswald",sans-serif;font-weight:500;letter-spacing:.28em;text-transform:uppercase;font-size:.68rem;color:var(--midori)}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--midori);z-index:90;transition:width .1s linear}

/* header */
.site-header{position:fixed;inset:0 0 auto 0;z-index:80;display:flex;align-items:center;justify-content:space-between;
  padding:20px var(--pad);transition:background .4s,padding .4s;color:#fff}
.site-header.solid{background:rgba(247,245,240,.95);backdrop-filter:blur(9px);color:var(--ink);padding-top:13px;padding-bottom:13px;border-bottom:1px solid var(--hair)}
.brand{display:flex;align-items:center;gap:12px}
.brand .mono{width:35px;height:35px;background:var(--midori);color:#fff;display:grid;place-items:center;border-radius:3px;
  font-family:"Oswald",sans-serif;font-weight:600;font-size:1.05rem;flex:none}
.brand .bt b{display:block;font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:.94rem;letter-spacing:.1em}
.brand .bt span{font-family:"Oswald",sans-serif;font-size:.56rem;letter-spacing:.28em;opacity:.7}
.nav{display:flex;align-items:center;gap:24px}
.nav a{font-size:.78rem;letter-spacing:.1em}
.site-header.solid .nav a:not(.nav-cta):hover,.site-header.solid .nav a[aria-current=page]:not(.nav-cta){color:var(--midori)}
.site-header:not(.solid) .nav a[aria-current=page]:not(.nav-cta){color:#c9e3d8}
.site-header:not(.solid) .nav a:not(.nav-cta):hover{color:#c9e3d8}
.nav .nav-cta{border:1px solid currentColor;border-radius:3px;padding:8px 18px;font-size:.73rem;transition:background .3s,color .3s,border-color .3s}
.nav .nav-cta:hover{background:var(--midori);border-color:var(--midori);color:#fff}
.nav-toggle{display:none}

/* hero：四つ割りの写真。左上のマスは緑の無地にして見出しを置く */
.hero{position:relative;min-height:100svh;display:grid;place-items:center;overflow:hidden;background:var(--midori-d)}
.hero-grid{position:absolute;inset:0;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr}
.hero-grid i{display:block;overflow:hidden;position:relative}
.hero-grid i::before{content:"";position:absolute;inset:0;background-size:cover;background-position:center;
  filter:saturate(.8) brightness(.62);transform:scale(1.18);opacity:0;
  transition:transform 1.6s cubic-bezier(.16,1,.3,1),opacity 1.1s}
.hero-grid i:nth-child(1)::before{background-image:url("img/hero.jpg")}
.hero-grid i:nth-child(2)::before{background-image:url("img/p2.jpg");transition-delay:.12s}
.hero-grid i:nth-child(3)::before{background-image:url("img/p3.jpg");transition-delay:.24s}
.hero-grid i:nth-child(4)::before{background-image:url("img/concept.jpg");transition-delay:.36s}
.hero.lit .hero-grid i::before{transform:scale(1);opacity:1}
.hero-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(31,63,54,.45),rgba(31,63,54,.72))}
.hero-inner{position:relative;z-index:3;width:100%;max-width:var(--wrap);padding:0 var(--pad);color:#fff}
.hero .lat{display:block;margin-bottom:1.3rem;color:#a7d3c4;opacity:0;transition:opacity .9s .7s}
.hero.lit .lat{opacity:1}
.hero h1{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:clamp(1.95rem,5.6vw,3.9rem);line-height:1.55;letter-spacing:.04em;max-width:22em}
.hero h1 .ln{display:block;overflow:hidden}
.hero h1 .ln em{display:block;font-style:normal;transform:translateY(105%);transition:transform 1.05s cubic-bezier(.16,1,.3,1)}
.hero h1 .ln:nth-child(2) em{transition-delay:.13s}
.hero.lit h1 .ln em{transform:none}
.hero .sub{margin-top:1.9rem;max-width:32rem;color:rgba(255,255,255,.87);font-size:.95rem;opacity:0;transition:opacity 1s 1.1s}
.hero.lit .sub{opacity:1}
.hero-actions{margin-top:2.3rem;display:flex;gap:13px;flex-wrap:wrap;opacity:0;transition:opacity 1s 1.3s}
.hero.lit .hero-actions{opacity:1}

/* ボタン：矢印が伸びて枠が消える */
.btn{position:relative;display:inline-flex;align-items:center;gap:.75em;font-size:.8rem;letter-spacing:.11em;
  padding:14px 26px;border:1px solid currentColor;border-radius:3px;transition:background .32s,color .32s,border-color .32s,padding .32s}
.btn .ar{display:inline-block;transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.btn:hover .ar{transform:translateX(7px)}
.btn .t2{display:none}
.btn-fill{background:var(--midori);border-color:var(--midori);color:#fff}
.btn-fill:hover{background:var(--midori-d);border-color:var(--midori-d)}
.btn-line{color:#fff}
.btn-line:hover{background:rgba(255,255,255,.14)}
.btn-ink{color:var(--ink)}
.btn-ink:hover{background:var(--ink);border-color:var(--ink);color:var(--bg)}

/* section */
.section{padding:clamp(4.6rem,11vw,8.8rem) 0;position:relative}
.section.white{background:var(--bg-2)}
.section.sand{background:var(--sand)}
.section.deep{background:var(--midori);color:#fff}
.section.deep .lat{color:#a7d3c4}
.split{display:grid;grid-template-columns:16rem minmax(0,1fr);gap:clamp(1.6rem,5vw,4rem);align-items:start}
.sec-head{max-width:44rem}
.split .sec-head{position:sticky;top:88px;margin-bottom:0}
.sec-head .lat{display:block;margin-bottom:.8rem}
.sec-head h2{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:clamp(1.45rem,3.6vw,2.35rem);line-height:1.6;letter-spacing:.04em}
.split .sec-head h2{font-size:clamp(1.35rem,3vw,1.95rem)}
.sec-head p{margin-top:1.1rem;color:var(--ink-2)}
.section.deep .sec-head p{color:rgba(255,255,255,.82)}
.mb{margin-bottom:clamp(2.2rem,5vw,3.6rem)}

/* 大切にしていること：横に広い写真を下に敷く */
.creed .big{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:clamp(1.35rem,3.4vw,2.1rem);line-height:1.75;letter-spacing:.04em;margin-bottom:1.4rem}
.creed p{color:var(--ink-2);margin-top:1rem;max-width:40rem}
.section.deep .creed p{color:rgba(255,255,255,.84)}
.widefig{margin-top:clamp(2.4rem,6vw,4rem);overflow:hidden;border-radius:4px}
.widefig img{width:100%;aspect-ratio:24/9;object-fit:cover;filter:saturate(.85);
  transform:scale(1.09);transition:transform 1.7s cubic-bezier(.16,1,.3,1)}
.reveal.on .widefig img,.widefig.reveal.on img{transform:scale(1)}

/* 業務内容：段差をつけたカード */
.offset{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2.4vw,1.6rem);align-items:start}
.offset .c{background:var(--bg-2);border-radius:4px;padding:clamp(1.5rem,3vw,2.2rem);border:1px solid var(--hair);
  transform:translateY(26px);opacity:0;transition:transform .95s cubic-bezier(.2,.7,.2,1),opacity .95s,box-shadow .35s}
.section.white .offset .c{background:var(--bg)}
.offset .c:nth-child(2){margin-top:clamp(1.4rem,3.4vw,2.6rem);transition-delay:.12s}
.offset .c:nth-child(3){margin-top:clamp(2.8rem,6.8vw,5.2rem);transition-delay:.24s}
.reveal.on .offset .c,.offset.reveal.on .c{transform:none;opacity:1}
.offset .c:hover{box-shadow:0 12px 30px rgba(35,36,31,.09)}
.offset .c .no{font-family:"Oswald",sans-serif;font-weight:600;font-size:.72rem;letter-spacing:.24em;color:var(--midori)}
.offset .c.lead .no::after{content:"／ 中心の仕事";margin-left:.5em;letter-spacing:.1em;font-family:"Noto Sans JP",sans-serif;font-weight:500}
.offset .c h3{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:1.01rem;line-height:1.7;margin:.9rem 0 .8rem}
.offset .c p{font-size:.9rem;color:var(--ink-2)}
.offset .c p+p{margin-top:.7rem}
.note-line{margin-top:2rem;font-size:.79rem;color:var(--ink-3);max-width:44rem}

/* 仕事の進め方：矢印でつなぐ */
.steps{display:grid;gap:.7rem}
.steps .s{display:grid;grid-template-columns:4.4rem minmax(0,1fr);gap:clamp(1rem,2.6vw,2rem);align-items:start;
  background:var(--bg-2);border-radius:4px;padding:clamp(1.2rem,2.6vw,1.7rem) clamp(1.2rem,2.6vw,1.8rem);position:relative}
.section.white .steps .s{background:var(--bg)}
.section.deep .steps .s{background:rgba(255,255,255,.07)}
.steps .s::after{content:"▼";position:absolute;left:2.2rem;bottom:-1.05rem;transform:translateX(-50%);color:var(--midori);font-size:.62rem;z-index:2}
.section.deep .steps .s::after{color:#a7d3c4}
.steps .s:last-child::after{display:none}
.steps .s .n{font-family:"Oswald",sans-serif;font-weight:600;font-size:1.5rem;line-height:1.3;color:var(--midori)}
.section.deep .steps .s .n{color:#a7d3c4}
.steps .s h4{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:1rem;margin-bottom:.4rem}
.steps .s p{font-size:.9rem;color:var(--ink-2)}
.section.deep .steps .s p{color:rgba(255,255,255,.8)}

/* 会社について */
.table-info{width:100%;border-collapse:collapse;font-size:.93rem}
.table-info th,.table-info td{border-top:1px solid var(--hair);padding:1.2rem .2rem;text-align:left;vertical-align:top}
.table-info th{width:11rem;font-weight:700;color:var(--ink-3);font-size:.8rem;letter-spacing:.1em}
.table-info tr:last-child td,.table-info tr:last-child th{border-bottom:1px solid var(--hair)}

/* よくいただくお問い合わせ：開閉式 */
.faq{max-width:46rem}
.faq details{border-bottom:1px solid var(--hair);padding:1.3rem 0}
.faq details:first-child{border-top:1px solid var(--hair)}
.faq summary{list-style:none;cursor:pointer;display:flex;gap:.9rem;align-items:flex-start;
  font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:.99rem;line-height:1.75}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";font-family:"Oswald",sans-serif;color:var(--midori);flex:none;font-size:.95rem;padding-top:.15em}
.faq summary::after{content:"";margin-left:auto;flex:none;width:11px;height:11px;margin-top:.55em;
  border-right:1.5px solid var(--ink-3);border-bottom:1.5px solid var(--ink-3);transform:rotate(45deg);transition:transform .25s}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq .a{padding:.9rem 0 0 1.9rem;color:var(--ink-2);font-size:.91rem}

.cta{background:var(--midori);color:#fff;padding:clamp(4.2rem,10vw,7rem) 0}
.cta .lat{color:#a7d3c4;display:block}
.cta h2{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:clamp(1.45rem,3.6vw,2.3rem);margin:1rem 0 .9rem;line-height:1.6}
.cta p{color:rgba(255,255,255,.85);margin-bottom:2.1rem;max-width:33rem}

.page-hero{padding:clamp(7.6rem,14vw,10.5rem) var(--pad) clamp(2.4rem,5.5vw,3.9rem);background:var(--midori);color:#fff}
.page-hero .lat{display:block;margin-bottom:.8rem;color:#a7d3c4}
.page-hero h1{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:clamp(1.65rem,4.4vw,2.8rem);letter-spacing:.06em}

.prose{max-width:44rem}
.prose h2{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:1.07rem;margin:2.5rem 0 .85rem;padding-bottom:.5rem;border-bottom:1px solid var(--hair)}
.prose h2:first-child{margin-top:0}
.prose p,.prose li{color:var(--ink-2);font-size:.93rem}
.prose ul,.prose ol{margin:.5rem 0 .5rem 1.4rem}.prose li{margin:.3rem 0}
.prose .stamp{font-size:.78rem;color:var(--ink-3);margin-top:2.2rem}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);max-width:60rem;align-items:start}
.contact-grid h3{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:1rem;color:var(--midori);
  padding-bottom:.5rem;border-bottom:1px solid var(--hair);margin-bottom:.9rem}
.contact-grid p{line-height:2}
.mail{font-family:"Oswald",sans-serif;font-weight:500;font-size:clamp(1.1rem,2.8vw,1.4rem);letter-spacing:.04em;color:var(--midori);margin-top:.3rem}
.tiny{font-size:.78rem;color:var(--ink-3);line-height:1.9;margin-top:.5rem}
.form{display:grid;gap:1.1rem;margin-top:1.2rem}
.form label{font-size:.76rem;letter-spacing:.09em;color:var(--ink-3);display:block}
.form input,.form textarea{width:100%;border:1px solid var(--hair);border-radius:3px;padding:.8rem .9rem;font-family:inherit;font-size:.95rem;
  line-height:1.8;background:var(--bg-2);margin-top:.35rem}
.form input:focus,.form textarea:focus{outline:2px solid var(--midori);border-color:var(--midori)}
.form input:disabled,.form textarea:disabled{background:var(--sand);color:var(--ink-3);cursor:not-allowed}
.form .btn{justify-self:start}
.form .btn:disabled{opacity:.4;pointer-events:none}

.site-footer{background:var(--ink);color:rgba(247,245,240,.7);padding:clamp(3.4rem,8vw,5.2rem) var(--pad) 2rem}
.footer-top{max-width:var(--wrap);margin:0 auto;display:flex;justify-content:space-between;gap:2.6rem;flex-wrap:wrap}
.footer-brand .mono{width:40px;height:40px;background:var(--midori);color:#fff;display:grid;place-items:center;border-radius:3px;
  font-family:"Oswald",sans-serif;font-weight:600;font-size:1.15rem}
.footer-brand b{display:block;margin-top:.9rem;color:#fff;font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:.96rem;letter-spacing:.08em}
.footer-addr{font-size:.8rem;margin-top:.7rem;line-height:1.95}
.footer-nav{display:grid;grid-template-columns:1fr 1fr;gap:.5rem 2.2rem;font-size:.8rem}
.footer-nav a:hover{color:#a7d3c4}
.footer-bottom{max-width:var(--wrap);margin:2.4rem auto 0;padding-top:1.3rem;border-top:1px solid rgba(247,245,240,.2);
  font-family:"Oswald",sans-serif;font-size:.68rem;letter-spacing:.2em;color:rgba(247,245,240,.5)}

.reveal{opacity:0;transform:translateY(22px);transition:opacity 1s cubic-bezier(.2,.7,.2,1),transform 1s cubic-bezier(.2,.7,.2,1)}
.reveal.on{opacity:1;transform:none}

@media(max-width:960px){
  .split{grid-template-columns:1fr}
  .split .sec-head{position:static;margin-bottom:2rem}
  .offset{grid-template-columns:1fr}
  .offset .c:nth-child(2),.offset .c:nth-child(3){margin-top:0}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:680px){
  .nav a:not(.nav-cta){display:none}
  .nav-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;width:36px;height:30px;background:none;border:0;cursor:pointer}
  .nav-toggle span{display:block;width:22px;height:1.6px;margin-left:auto;background:currentColor;transition:transform .25s,opacity .2s}
  .nav-toggle.on span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
  .nav-toggle.on span:nth-child(2){opacity:0}
  .nav-toggle.on span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}
  .nav.menu-open{position:fixed;inset:0;background:var(--bg);color:var(--ink);flex-direction:column;justify-content:center;align-items:center;gap:1.7rem}
  .nav.menu-open a:not(.nav-cta){display:block;font-size:1.05rem;letter-spacing:.16em}
  .steps .s{grid-template-columns:3rem 1fr;gap:.9rem}
  .steps .s::after{left:1.7rem}
  .footer-top{flex-direction:column;gap:1.6rem}.footer-nav{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  .hero-grid i::before{transform:none!important;opacity:1!important}
  .reveal,.hero h1 .ln em,.hero .sub,.hero-actions,.hero .lat,.offset .c,.widefig img{transition:none;opacity:1;transform:none}
}

.offset.two{grid-template-columns:1.1fr .9fr}
.offset.two .c:nth-child(2){margin-top:clamp(2rem,5vw,3.6rem)}
.note-line a{color:var(--midori);text-decoration:underline;text-underline-offset:3px}
@media(max-width:960px){.offset.two{grid-template-columns:1fr}.offset.two .c:nth-child(2){margin-top:0}}

/* ---- ロゴ（支給マークのSの部分） ----
   写真の上では深緑が沈むので、生成りの角丸の台座に載せる */
.brand img.mono,.footer-brand img.mono{border:0;background:var(--bg);border-radius:4px;
  padding:4px;object-fit:contain;display:block;flex:none}
.brand img.mono{width:34px;height:34px}
.footer-brand img.mono{width:40px;height:40px}
.brand img.mono{transition:box-shadow .35s}
.brand:hover img.mono{box-shadow:0 0 0 3px rgba(47,93,80,.3)}