/* SMKLab static clone — 桜井・森香ノート研究室 */
:root{
  --cream:#F8F5F0;
  --sage-light:#E4E8DF;
  --sage-grey:#D1D6CC;
  --sage:#5A6B5C;
  --sage-deep:#4A5D4B;
  --pine:#2C3E2D;
  --clay:#A89F8E;
  --sage-pale:#B8C4B3;
  --ink:#2b332c;
  --font-jp:"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic UI","Yu Gothic",Meiryo,"MS PGothic",sans-serif;
  --maxw:1120px;
  --radius:14px;
  --shadow:0 8px 28px rgba(44,62,45,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-jp);
  color:var(--ink);
  background:var(--cream);
  font-size:16px;line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-weight:700;line-height:1.5;letter-spacing:.04em}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(248,245,240,.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid rgba(44,62,45,.08);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:700;font-size:17px;letter-spacing:.06em}
.brand img{width:46px;height:46px;border-radius:50%;object-fit:cover}
.main-nav{display:flex;gap:34px}
.main-nav a{text-decoration:none;font-size:15px;letter-spacing:.08em;position:relative;padding:6px 2px}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--sage);transform:scaleX(0);transition:transform .25s}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:26px;height:2px;background:var(--pine);margin:6px 0;transition:.25s}

/* ---------- hero ---------- */
.hero{
  position:relative;min-height:88vh;
  display:flex;align-items:center;justify-content:flex-start;text-align:left;
  background:url("../images/hero-top.jpg") center/cover no-repeat;
  color:#fff;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(32,30,27,.42) 0%,rgba(32,30,27,.14) 48%,rgba(32,30,27,0) 72%);
}
.hero-inner{position:relative;z-index:1;width:100%;padding:90px 5vw}
.hero h1{
  font-family:"Hiragino Mincho ProN","Hiragino Mincho Pro","Yu Mincho","YuMincho","MS PMincho",serif;
  font-weight:600;
  font-size:clamp(38px,5.6vw,66px);letter-spacing:.16em;line-height:1.7;
  margin-bottom:30px;text-shadow:0 2px 16px rgba(0,0,0,.3);
}
.hero .lab-name{font-size:17px;letter-spacing:.28em;margin-bottom:10px;opacity:.95}
.hero .lab-tag{font-size:14px;letter-spacing:.18em;opacity:.85;margin-bottom:38px}
.hero .btn{background:var(--sage)}
.hero .btn:hover{background:var(--sage-deep)}
.btn{
  display:inline-block;background:var(--pine);color:#fff;text-decoration:none;
  padding:14px 46px;border-radius:999px;font-size:15px;letter-spacing:.14em;
  transition:background .25s,transform .25s;border:0;cursor:pointer;
}
.btn:hover{background:var(--sage-deep);transform:translateY(-2px)}

/* ---------- sections ---------- */
.section{padding:96px 24px}
.wrap{max-width:var(--maxw);margin:0 auto}
.section-cream{background:var(--cream)}
.section-sage{background:var(--sage);color:#fff}
.section-sage h2{color:#fff}
.section-pine{background:var(--pine);color:#f3efe7;text-align:center}
.section-pale{background:var(--sage-light)}
.section h2{font-size:clamp(28px,3.4vw,40px);letter-spacing:.14em;margin-bottom:34px;color:var(--pine)}
.section-pine h2{color:#fff}
.kicker{font-size:14px;letter-spacing:.3em;color:var(--sage);margin-bottom:14px}
.section-pine .kicker{color:var(--sage-pale)}
.lead{font-size:18px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split img{border-radius:var(--radius);box-shadow:var(--shadow)}
.split p+p{margin-top:1.2em}
.center-narrow{max-width:760px;margin:0 auto}
.center-narrow p+p{margin-top:1.4em}
.about-img{margin-top:48px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.about-img img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- blog cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:8px}
.card{
  background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s;
  text-decoration:none;color:inherit;
}
.card:hover{transform:translateY(-6px);box-shadow:0 16px 38px rgba(44,62,45,.16)}
.card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.card-body{padding:26px 26px 30px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:19px;letter-spacing:.06em;color:var(--pine)}
.card-meta{font-size:12.5px;color:#8a8f86;letter-spacing:.06em}
.card-desc{font-size:14px;line-height:1.9;color:#4c554d;flex:1}
.card-link{font-size:14px;letter-spacing:.12em;color:var(--sage-deep);font-weight:700}

/* ---------- portfolio ---------- */
.page-hero{padding:110px 24px 70px;text-align:center;background:var(--cream)}
.page-hero h1{font-size:clamp(38px,5vw,58px);letter-spacing:.5em;text-indent:.5em;color:var(--pine)}
.pf-list{display:flex;flex-direction:column;gap:0}
.pf-item{
  display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:0;
  text-decoration:none;color:inherit;background:#fff;
}
.pf-item:nth-child(even){background:var(--cream)}
.pf-item .pf-img{overflow:hidden}
.pf-item .pf-img img{width:100%;height:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .6s}
.pf-item:hover .pf-img img{transform:scale(1.04)}
.pf-item:nth-child(even) .pf-img{order:2}
.pf-body{padding:56px}
.pf-num{font-size:14px;letter-spacing:.3em;color:var(--clay);margin-bottom:12px}
.pf-body h2{font-size:30px;letter-spacing:.12em;margin-bottom:16px;color:var(--pine)}
.pf-body p{color:#4c554d}

/* ---------- article ---------- */
.article{max-width:780px;margin:0 auto;padding:70px 24px 90px}
.article h1{font-size:clamp(30px,4vw,42px);letter-spacing:.08em;color:var(--pine);margin-bottom:14px}
.article .meta{font-size:13px;color:#8a8f86;letter-spacing:.08em;margin-bottom:30px}
.article .hero-img{border-radius:var(--radius);overflow:hidden;margin-bottom:44px;box-shadow:var(--shadow)}
.article h2{font-size:24px;letter-spacing:.1em;color:var(--pine);margin:52px 0 18px;padding-left:16px;border-left:4px solid var(--sage)}
.article p{margin-bottom:1.4em}
.article strong{color:var(--pine)}
.article ul{margin:0 0 1.4em 1.4em}
.article li{margin-bottom:.5em}
.latest{margin-top:80px;border-top:1px solid var(--sage-grey);padding-top:36px}
.latest h3{font-size:18px;letter-spacing:.2em;color:var(--pine);margin-bottom:20px}
.latest ul{list-style:none;display:grid;gap:12px}
.latest a{color:var(--sage-deep);text-decoration:none}
.latest a:hover{text-decoration:underline}
.share-row{display:flex;gap:12px;margin-top:36px;align-items:center;font-size:14px;color:#8a8f86}
.share-row button,.share-row a{
  border:1px solid var(--sage-grey);background:#fff;border-radius:999px;padding:8px 20px;
  font-size:13px;cursor:pointer;text-decoration:none;color:var(--pine);font-family:inherit;
}
.share-row button:hover,.share-row a:hover{border-color:var(--sage)}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:64px;align-items:start}
.contact-info{font-size:17px;line-height:2.4}
.contact-info strong{color:var(--pine)}
.form-card{background:#fff;border-radius:var(--radius);padding:40px;box-shadow:var(--shadow)}
.field{margin-bottom:22px}
.field label{display:block;font-size:14px;letter-spacing:.1em;margin-bottom:8px;color:var(--pine);font-weight:700}
.field label .req{color:#b0563f;margin-left:4px}
.field input,.field textarea{
  width:100%;border:1px solid var(--sage-grey);border-radius:10px;padding:13px 16px;
  font-size:15px;font-family:inherit;background:var(--cream);color:var(--ink);
}
.field input:focus,.field textarea:focus{outline:2px solid var(--sage);border-color:var(--sage);background:#fff}
.field textarea{min-height:150px;resize:vertical}
.form-card .btn{width:100%;text-align:center}

/* ---------- footer ---------- */
.site-footer{background:var(--cream);border-top:1px solid rgba(44,62,45,.1);text-align:center;padding:64px 24px 34px}
.site-footer .f-logo{width:110px;height:110px;border-radius:50%;object-fit:cover;margin:0 auto 22px}
.site-footer .f-name{font-weight:700;letter-spacing:.14em;font-size:17px;margin-bottom:8px}
.site-footer .f-tag{font-size:13px;letter-spacing:.14em;color:#8a8f86;margin-bottom:26px}
.copyright{margin-top:30px;font-size:12.5px;color:#9aa09a;letter-spacing:.08em}

/* ---------- project pages ---------- */
.project-hero{background-size:cover;background-position:center;min-height:62vh}
.quote-cite{font-size:13px;color:#8a8f86;letter-spacing:.06em}
.quote-cite a{color:var(--sage-deep)}
.text-center{text-align:center}
.pt-0{padding-top:0}
.section ul{margin:0 0 1.4em 1.4em}
.section li{margin-bottom:.5em}

/* ---------- project stub ---------- */
.stub{min-height:44vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;padding:80px 24px;text-align:center}
.stub h1{font-size:clamp(30px,4vw,44px);letter-spacing:.2em;color:var(--pine)}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .split{grid-template-columns:1fr;gap:36px}
  .cards{grid-template-columns:1fr;max-width:520px;margin-left:auto;margin-right:auto}
  .pf-item{grid-template-columns:1fr}
  .pf-item:nth-child(even) .pf-img{order:0}
  .pf-body{padding:36px 28px}
  .contact-grid{grid-template-columns:1fr;gap:44px}
  .section{padding:64px 20px}
}
@media (max-width:720px){
  .main-nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:var(--cream);flex-direction:column;gap:0;
    border-bottom:1px solid rgba(44,62,45,.1);box-shadow:0 12px 24px rgba(44,62,45,.12);
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:16px 24px;border-top:1px solid rgba(44,62,45,.07)}
  .nav-toggle{display:block}
  .hero{min-height:78vh}
  .form-card{padding:28px 22px}
}