/* よしの設計企画 ランディングページ
   色・余白は :root の変数だけ変えれば全体に反映されます */
:root{
  --paper:#f6f2ea;
  --paper-2:#ece5d8;
  --ink:#2b2723;
  --ink-soft:#6b645b;
  --line:#d9d0c1;
  --accent:#a4573a;     /* 赤土・木部の色 */
  --accent-d:#85432b;
  --night:#27231f;
  --serif:"Hiragino Mincho ProN","Yu Mincho","YuMincho","Noto Serif JP","MS PMincho",serif;
  --sans:"Hiragino Kaku Gothic ProN","Yu Gothic","YuGothic","Noto Sans JP","Meiryo",sans-serif;
  --wrap:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.9;font-size:16px;-webkit-text-size-adjust:100%}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.en{font-family:var(--serif);letter-spacing:.22em;font-size:12px;color:var(--accent);margin:0 0 .6em;text-transform:uppercase}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.5;margin:0}
h2{font-size:clamp(26px,3.4vw,36px);letter-spacing:.06em}
.sec{padding:clamp(72px,10vw,128px) 0}
.sec-head{margin-bottom:clamp(32px,5vw,56px)}
.sec-head p.sub{margin:.9em 0 0;color:var(--ink-soft);max-width:36em}

/* header */
.hd{position:sticky;top:0;z-index:20;background:rgba(246,242,234,.92);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:border-color .3s}
.hd.on{border-bottom-color:var(--line)}
.hd .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-family:var(--serif);font-size:18px;letter-spacing:.12em;text-decoration:none;white-space:nowrap}
.logo small{font-size:11px;letter-spacing:.1em;color:var(--ink-soft);margin-left:.8em}
.nav{display:flex;gap:28px;font-size:14px;letter-spacing:.08em}
.nav a{text-decoration:none;padding:6px 0;border-bottom:1px solid transparent}
.nav a:hover{border-bottom-color:var(--accent)}
.nav .cta{color:#fff;background:var(--accent);padding:6px 18px;border-radius:99px;border:0;white-space:nowrap}
.nav .cta:hover{background:var(--accent-d)}

/* hero */
.hero{padding:clamp(40px,7vw,96px) 0 clamp(64px,9vw,120px)}
.hero .wrap{display:grid;grid-template-columns:1.15fr 1fr;gap:clamp(32px,6vw,80px);align-items:center}
.hero h1{font-size:clamp(27px,4.3vw,50px);letter-spacing:.03em;line-height:1.55}
.hero h1 span{display:block;white-space:nowrap}
.hero h1 span+span{color:var(--accent)}
.hero .lead{margin:1.8em 0 2.2em;color:var(--ink-soft);max-width:30em}
.btns{display:flex;flex-wrap:wrap;gap:14px}
.btn{display:inline-block;padding:14px 32px;border-radius:99px;border:1px solid var(--ink);text-decoration:none;font-size:15px;letter-spacing:.1em;cursor:pointer;background:transparent;color:var(--ink);font-family:inherit;transition:background .25s,color .25s}
.btn:hover{background:var(--ink);color:var(--paper)}
.btn.p{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.p:hover{background:var(--accent-d);border-color:var(--accent-d)}
.collage{position:relative;aspect-ratio:1/1.02}
.collage img{position:absolute;box-shadow:0 18px 40px -18px rgba(43,39,35,.45);object-fit:cover}
.collage .c1{left:0;top:0;width:68%;aspect-ratio:3/2}
.collage .c2{right:0;top:26%;width:46%;aspect-ratio:3/4}
.collage .c3{left:12%;bottom:0;width:58%;aspect-ratio:3/2}
.badge{position:absolute;right:2%;bottom:6%;width:104px;height:104px;border-radius:50%;background:var(--night);color:var(--paper);display:grid;place-items:center;text-align:center;font-family:var(--serif);font-size:11.5px;line-height:1.5;letter-spacing:.08em}
.badge b{display:block;font-size:22px;font-weight:500;letter-spacing:0}

/* two jobs */
.jobs{background:var(--paper-2)}
.jobs .grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px)}
.job{padding:clamp(28px,4vw,48px);background:var(--paper);border-top:3px solid var(--accent)}
.job.b{border-top-color:var(--ink)}
.job h3{font-size:24px;letter-spacing:.08em}
.job ul{margin:1.2em 0 0;padding:0;list-style:none;font-size:15px}
.job li{padding:.55em 0;border-top:1px solid var(--line)}
.job li:last-child{border-bottom:1px solid var(--line)}

/* works */
.works-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,3vw,36px) clamp(16px,2.4vw,28px)}
.work{margin:0}
.work>a{display:block;position:relative;overflow:hidden;background:var(--paper-2)}
.work img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.work>a:hover img{transform:scale(1.045)}
.work>a::after{content:"VIEW";position:absolute;left:14px;bottom:12px;font-family:var(--serif);font-size:11px;letter-spacing:.24em;color:#fff;opacity:0;transform:translateY(6px);transition:.4s;text-shadow:0 1px 8px rgba(0,0,0,.6)}
.work>a:hover::after{opacity:1;transform:none}
.work figcaption{padding:14px 2px 0;font-family:var(--serif);font-size:18px;letter-spacing:.06em}
.work figcaption small{display:block;font-family:var(--sans);font-size:12.5px;color:var(--accent);letter-spacing:.04em;margin-top:2px}
.award{margin-top:clamp(36px,5vw,56px);padding:22px 28px;border:1px solid var(--line);font-size:14.5px;color:var(--ink-soft)}
.award strong{color:var(--ink);font-weight:600;margin-right:.6em}

/* flow */
.flow{background:var(--night);color:var(--paper)}
.flow .en{color:#d49a7f}
.flow .sec-head p.sub{color:#b8afa2}
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:0;list-style:none;margin:0;padding:0;counter-reset:s}
.steps li{counter-increment:s;padding:28px 18px 0 0;border-top:1px solid #4a433b;font-size:15px;line-height:1.6;position:relative}
.steps li::before{content:"0" counter(s);display:block;font-family:var(--serif);font-size:30px;color:#d49a7f;margin-bottom:.4em;letter-spacing:.04em}
.steps li::after{content:"";position:absolute;top:-4px;left:0;width:7px;height:7px;border-radius:50%;background:#d49a7f}

/* contact + office */
.cols{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,88px);align-items:start}
.form label{display:block;margin-bottom:18px;font-size:14px;letter-spacing:.04em}
.form label em{font-style:normal;font-size:11px;color:#fff;background:var(--accent);padding:1px 7px;border-radius:3px;margin-left:.5em}
.form input,.form select,.form textarea{display:block;width:100%;margin-top:6px;padding:12px 14px;font:inherit;font-size:16px;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:4px}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.form .hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.form .note{font-size:12.5px;color:var(--ink-soft);margin:14px 0 0}
.flash{margin-bottom:20px;padding:14px 18px;background:#e7efe2;border-left:4px solid #5c8a4d;font-size:14.5px}
.flash.err{background:#f6e3de;border-left-color:var(--accent)}
.office dl{margin:0;display:grid;grid-template-columns:6.5em 1fr;font-size:15px}
.office dt,.office dd{margin:0;padding:14px 0;border-top:1px solid var(--line)}
.office dt{color:var(--ink-soft);font-size:13px;letter-spacing:.1em;padding-top:16px}
.office dl>:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
.office .tel{font-family:var(--serif);font-size:26px;letter-spacing:.06em;line-height:1.4}
.office .tel a{text-decoration:none}
.office .about{margin:0 0 28px;color:var(--ink-soft)}

footer{padding:36px 0;text-align:center;font-size:12.5px;color:var(--ink-soft);border-top:1px solid var(--line)}

/* lightbox */
dialog.lb{border:0;padding:0;background:transparent;max-width:100vw;max-height:100vh;width:100vw;height:100vh;color:#fff}
dialog.lb::backdrop{background:rgba(20,17,14,.92)}
.lb-in{position:relative;height:100%;display:grid;place-items:center;padding:56px 64px}
.lb img{max-width:100%;max-height:calc(100vh - 150px);object-fit:contain;width:auto;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lb-cap{position:absolute;left:0;right:0;bottom:18px;text-align:center;font-family:var(--serif);letter-spacing:.1em;font-size:14px}
.lb button{position:absolute;background:none;border:0;color:#fff;font-size:34px;line-height:1;cursor:pointer;padding:14px;opacity:.8}
.lb button:hover{opacity:1}
.lb .x{top:6px;right:10px}.lb .pv{left:4px;top:50%;transform:translateY(-50%)}.lb .nx{right:4px;top:50%;transform:translateY(-50%)}

/* reveal */
.rv{opacity:0;transform:translateY(18px);transition:opacity .9s ease,transform .9s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.rv{opacity:1;transform:none;transition:none}.work img{transition:none}}
.no-js .rv{opacity:1;transform:none}

/* responsive */
@media (max-width:900px){
  .hero .wrap,.jobs .grid,.cols{grid-template-columns:1fr}
  .collage{max-width:520px;margin:0 auto;width:100%}
  .works-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr);row-gap:28px}
  .nav a:not(.cta){display:none}
  .logo small{display:none}
}
@media (max-width:560px){
  body{font-size:15.5px}
  .wrap{padding:0 18px}
  .logo{font-size:16px;letter-spacing:.08em}
  .nav .cta{padding:5px 14px;font-size:13px}
  .en{letter-spacing:.14em;font-size:11px}
  .works-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .badge{width:88px;height:88px;font-size:10.5px}.badge b{font-size:19px}
  .lb-in{padding:48px 8px}
  .btn{padding:13px 26px}
}