/* =========================================================
   木の工務店 きこり — 制作サンプル
   型: 自然素材の注文住宅をつくる地域工務店
       （大判の住宅写真・施工事例ギャラリー・家づくりの流れ・木の温もり）
   配色: 生成り #f6f1e7 / 木茶 #8a6a44 / 深緑 #3f5340 / 墨 #2c2620
   ========================================================= */

:root{
  --kinari:#f6f1e7;
  --kinari-2:#efe7d6;
  --kicha:#8a6a44;
  --kicha-lt:#a98a60;
  --green:#3f5340;
  --green-dk:#33442f;
  --sumi:#2c2620;
  --ink:#3a322a;
  --muted:#857c6c;
  --line:#e0d6c2;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN",sans-serif;
  color:var(--ink);background:var(--kinari);
  line-height:1.95;font-weight:400;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,.mincho{font-family:"Zen Old Mincho","Hiragino Mincho ProN",serif;font-weight:600}
.wrap{width:min(1120px,88vw);margin-inline:auto}

/* nav (top offset clears the sample frame bar) */
.nav{position:fixed;top:42px;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:20px 5vw;transition:.4s;color:#fff}
@media(max-width:600px){.nav{top:34px}}
.nav.solid{background:rgba(44,38,32,.92);backdrop-filter:blur(10px)}
.nav .logo{font-family:"Zen Old Mincho",serif;font-size:1.15rem;letter-spacing:.18em;font-weight:600}
.nav-links{display:flex;gap:2em;font-size:.88rem;letter-spacing:.14em}
.nav-links a{opacity:.9}.nav-links a:hover{opacity:1;color:var(--kicha-lt)}
.nav .resv{border:1px solid rgba(255,255,255,.6);padding:.55em 1.4em;border-radius:2px;font-size:.82rem;letter-spacing:.16em}
.nav .resv:hover{background:var(--kicha);border-color:var(--kicha)}
@media(max-width:820px){.nav-links{display:none}}

/* hero */
.hero{height:100vh;min-height:600px;position:relative;display:flex;align-items:center;justify-content:center;
  background:#2c2620 center/cover no-repeat;color:#fff;text-align:center}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(30,24,18,.4),rgba(30,24,18,.2) 45%,rgba(30,24,18,.6))}
.hero-inner{position:relative;z-index:2;animation:fade 1.6s ease both;padding:0 6vw}
@keyframes fade{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.hero .ey{font-size:.82rem;letter-spacing:.42em;color:var(--kicha-lt);margin-bottom:1.4em}
.hero h1{font-family:"Zen Old Mincho",serif;font-size:clamp(2.2rem,6vw,4.2rem);letter-spacing:.12em;line-height:1.55;font-weight:600;text-shadow:0 2px 26px rgba(0,0,0,.35)}
.hero .sub{margin-top:1.4em;font-size:clamp(.92rem,1.6vw,1.1rem);letter-spacing:.14em;color:#f2ece0;line-height:2}
.scroll-cue{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);z-index:2;color:#fff;font-size:.68rem;letter-spacing:.3em;writing-mode:vertical-rl;opacity:.85}
.scroll-cue::after{content:"";display:block;width:1px;height:44px;background:rgba(255,255,255,.6);margin:12px auto 0}

/* intro / natural materials */
.intro{padding:130px 0;text-align:center;background:var(--kinari)}
.intro .ey{font-size:.78rem;letter-spacing:.4em;color:var(--kicha);margin-bottom:1.8em}
.intro h2{font-size:clamp(1.5rem,3.2vw,2.4rem);letter-spacing:.1em;line-height:1.8;font-weight:600;color:var(--sumi)}
.intro p{max-width:36em;margin:2em auto 0;color:#5d5446;letter-spacing:.03em;text-align:left}
@media(min-width:760px){.intro p{text-align:center}}

/* materials triple */
.mat{padding:0 0 120px;background:var(--kinari)}
.mat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:34px}
.mat-card{background:#fff;border:1px solid var(--line);border-radius:4px;padding:46px 36px;position:relative}
.mat-card .mat-no{font-family:"Zen Old Mincho",serif;color:var(--kicha);font-size:1.6rem;letter-spacing:.1em;margin-bottom:.5em}
.mat-card h3{font-size:1.25rem;letter-spacing:.06em;color:var(--sumi);margin-bottom:.7em;padding-bottom:.7em;border-bottom:1px solid var(--line)}
.mat-card p{color:#5d5446;font-size:.95rem;letter-spacing:.02em}
@media(max-width:820px){.mat-grid{grid-template-columns:1fr;gap:20px}.mat{padding-bottom:80px}}

/* full feature */
.feat{position:relative;height:84vh;min-height:520px;display:flex;align-items:flex-end;
  background:#2c2620 center/cover no-repeat;color:#fff;overflow:hidden}
.feat::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 38%,rgba(28,22,16,.74))}
.feat .cap{position:relative;z-index:2;padding:0 0 8vh 8vw;max-width:40em}
.feat .num{font-family:"Zen Old Mincho",serif;color:var(--kicha-lt);letter-spacing:.26em;font-size:.86rem;margin-bottom:1em}
.feat h3{font-size:clamp(1.7rem,3.8vw,2.8rem);letter-spacing:.1em;font-weight:600;line-height:1.55}
.feat p{margin-top:1.1em;color:#ece5d8;letter-spacing:.05em;font-size:1.02rem;max-width:34em}

/* works gallery */
.works{padding:130px 0;background:var(--kinari-2)}
.works .ey{font-size:.78rem;letter-spacing:.4em;color:var(--kicha);text-align:center;margin-bottom:1.6em}
.works h2{font-size:clamp(1.5rem,3.2vw,2.3rem);letter-spacing:.1em;text-align:center;color:var(--sumi)}
.works-lead{max-width:40em;margin:1.4em auto 0;text-align:center;color:#5d5446;letter-spacing:.02em;font-size:.96rem}
.works-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:60px}
.work{background:#fff;border-radius:5px;overflow:hidden;box-shadow:0 10px 30px rgba(60,46,30,.07)}
.work-ph{height:240px;background:#2c2620 center/cover no-repeat}
.work figcaption{padding:26px 26px 30px}
.work-tag{display:inline-block;font-size:.72rem;letter-spacing:.12em;color:#fff;background:var(--green);padding:.32em 1em;border-radius:2px;margin-bottom:1em}
.work h4{font-size:1.12rem;letter-spacing:.04em;color:var(--sumi);line-height:1.6;margin-bottom:.6em}
.work figcaption p{color:#5d5446;font-size:.9rem;letter-spacing:.01em}
@media(max-width:900px){.works-grid{grid-template-columns:1fr;gap:24px}.works{padding:90px 0}}

/* flow */
.flow{padding:130px 0;background:var(--green);color:#fff}
.flow .ey{font-size:.78rem;letter-spacing:.4em;color:var(--kicha-lt);text-align:center;margin-bottom:1.6em}
.flow h2{font-size:clamp(1.5rem,3.2vw,2.3rem);letter-spacing:.1em;text-align:center;color:#fff}
.flow-steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-top:60px;counter-reset:none}
.flow-steps li{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:4px;padding:32px 26px}
.step-no{font-family:"Zen Old Mincho",serif;color:var(--kicha-lt);letter-spacing:.18em;font-size:.82rem;margin-bottom:1em}
.flow-steps h4{font-size:1.1rem;letter-spacing:.05em;color:#fff;margin-bottom:.7em;line-height:1.55}
.flow-steps p{color:#d8ddd2;font-size:.9rem;letter-spacing:.01em}
@media(max-width:900px){.flow-steps{grid-template-columns:1fr 1fr;gap:18px}.flow{padding:90px 0}}
@media(max-width:540px){.flow-steps{grid-template-columns:1fr}}

/* faq */
.faq{padding:130px 0;background:var(--kinari)}
.faq .ey{font-size:.78rem;letter-spacing:.4em;color:var(--kicha);text-align:center;margin-bottom:1.6em}
.faq h2{font-size:clamp(1.5rem,3.2vw,2.3rem);letter-spacing:.1em;text-align:center;color:var(--sumi)}
.faq-list{max-width:780px;margin:54px auto 0}
.faq details{background:#fff;border:1px solid var(--line);border-radius:4px;margin-bottom:16px;overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:22px 56px 22px 26px;position:relative;font-family:"Zen Old Mincho",serif;font-weight:600;color:var(--sumi);letter-spacing:.04em;font-size:1.02rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);color:var(--kicha);font-size:1.4rem;transition:.3s;font-family:sans-serif}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details p{padding:0 26px 24px;color:#5d5446;font-size:.94rem;letter-spacing:.02em}

/* CTA */
.cta{background:var(--sumi);color:#fff;text-align:center;padding:130px 0}
.cta .ey{font-size:.76rem;letter-spacing:.4em;color:var(--kicha-lt);margin-bottom:1.5em}
.cta h2{font-size:clamp(1.6rem,3.4vw,2.4rem);letter-spacing:.12em;font-weight:600;line-height:1.7}
.cta .info{margin:2.4em auto 0;max-width:32em;color:#d6cfbf;letter-spacing:.04em;font-size:.95rem;line-height:2.2}
.btn-resv{display:inline-block;margin-top:2.2em;border:1px solid var(--kicha-lt);color:#fff;
  padding:1em 3em;letter-spacing:.24em;font-size:.9rem;border-radius:2px;transition:.3s}
.btn-resv:hover{background:var(--kicha);border-color:var(--kicha)}

/* access */
.access{padding:120px 0;background:var(--kinari)}
.access-grid{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.access-tx .ey{font-size:.78rem;letter-spacing:.4em;color:var(--kicha);margin-bottom:1.4em}
.access-tx h3{font-family:"Zen Old Mincho",serif;font-size:1.5rem;letter-spacing:.1em;color:var(--sumi);margin-bottom:1.4em}
.access-tx dl{display:grid;grid-template-columns:auto 1fr;gap:.7em 1.6em;font-size:.95rem;letter-spacing:.02em}
.access-tx dt{color:var(--kicha);font-weight:500;white-space:nowrap}
.access-tx dd{color:#5d5446}
.access-ph{height:340px;border-radius:6px;background:#2c2620 center/cover no-repeat;box-shadow:0 14px 34px rgba(60,46,30,.12)}
@media(max-width:820px){.access-grid{grid-template-columns:1fr;gap:34px}.access{padding:80px 0}.access-ph{height:260px}}

/* footer */
.foot{background:var(--sumi);color:#9a9082;padding:46px 0 60px;font-size:.78rem;letter-spacing:.04em;line-height:1.9}
.foot .logo{font-family:"Zen Old Mincho",serif;color:#ece0cd;font-size:1.1rem;letter-spacing:.18em;margin-bottom:.9em}
.foot a{color:var(--kicha-lt)}
.foot .disc{border-top:1px solid #3c352c;margin-top:18px;padding-top:18px;color:#7c7367}

/* reveal */
.rv{opacity:0;transform:translateY(26px);transition:1s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}