:root{
  --black:#111;
  --charcoal:#1d1d1d;
  --cream:#f3eee6;
  --paper:#fbf8f2;
  --gray:#8b877f;
  --brown:#6d5844;
  --line:rgba(17,17,17,.13);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Inter","Noto Sans JP",system-ui,sans-serif;
  color:var(--black);
  background:var(--paper);
  letter-spacing:.02em;
}
a{color:inherit;text-decoration:none}
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:10;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:22px clamp(20px,4vw,54px);
  mix-blend-mode:difference;
  color:#fff;
}
.logo{
  font-size:28px;
  font-weight:800;
  letter-spacing:-.07em;
}
.site-header nav{
  display:flex;
  gap:24px;
  font-size:13px;
}
.hero{
  min-height:100vh;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  background:var(--black);
  color:var(--cream);
  overflow:hidden;
}
.hero__inner{
  padding:160px clamp(24px,7vw,92px) 80px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.eyebrow{
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:.18em;
  color:var(--brown);
  font-weight:800;
  margin:0 0 18px;
}
.hero h1{
  font-size:clamp(52px,8vw,112px);
  line-height:.96;
  letter-spacing:-.08em;
  margin:0 0 28px;
}
.lead{
  max-width:520px;
  font-size:clamp(18px,2vw,24px);
  line-height:1.8;
  color:rgba(243,238,230,.82);
}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:999px;
  padding:15px 24px;
  font-weight:800;
  font-size:14px;
  border:1px solid currentColor;
  cursor:pointer;
  transition:.2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn--primary{
  background:var(--cream);
  color:var(--black);
  border-color:var(--cream);
}
.btn--ghost{
  background:transparent;
  color:inherit;
}
.btn--wide{width:100%;margin-top:8px}
.hero__visual{
  position:relative;
  min-height:100vh;
  background:
    radial-gradient(circle at 30% 30%, rgba(109,88,68,.6), transparent 36%),
    linear-gradient(135deg, #2b2925, #080808);
}
.visual-card{
  position:absolute;
  border:1px solid rgba(243,238,230,.18);
  background:rgba(243,238,230,.06);
  backdrop-filter:blur(10px);
  border-radius:28px;
  display:flex;
  align-items:flex-end;
  padding:24px;
  color:rgba(243,238,230,.72);
  text-transform:uppercase;
  letter-spacing:.16em;
  font-size:12px;
}
.visual-card--main{
  width:58%;
  height:56%;
  left:8%;
  top:20%;
}
.visual-card--sub{
  width:48%;
  height:24%;
  right:8%;
  bottom:14%;
}
.section{
  padding:110px clamp(20px,6vw,86px);
}
.section--dark{
  background:var(--charcoal);
  color:var(--cream);
}
.section__head{
  max-width:760px;
  margin-bottom:44px;
}
.section h2{
  font-size:clamp(34px,5vw,72px);
  line-height:1.08;
  letter-spacing:-.06em;
  margin:0 0 20px;
}
.section__head p:not(.eyebrow){
  font-size:17px;
  color:var(--gray);
  line-height:1.9;
}
.problem-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}
.problem-grid div{
  border:1px solid rgba(243,238,230,.14);
  padding:28px;
  border-radius:22px;
  color:rgba(243,238,230,.78);
  line-height:1.8;
}
.concept-copy{
  max-width:850px;
  margin:42px 0 0;
  color:rgba(243,238,230,.78);
  font-size:18px;
  line-height:2;
}
.session-card,.result-card{
  max-width:920px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:32px;
  padding:clamp(22px,4vw,44px);
  box-shadow:0 24px 70px rgba(17,17,17,.08);
}
.question{margin-bottom:24px}
.question label:first-child{
  display:block;
  font-weight:800;
  margin-bottom:10px;
}
select{
  width:100%;
  padding:16px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  font:inherit;
}
.checks{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:10px;
}
.checks label{
  border:1px solid var(--line);
  border-radius:14px;
  padding:13px;
  background:var(--paper);
}
.result-card{
  margin-top:32px;
}
.result-card h3{
  font-size:clamp(28px,4vw,52px);
  letter-spacing:-.05em;
  margin:0 0 16px;
}
.result-card p{
  line-height:1.9;
}
.product-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
  margin:28px 0;
}
.product{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:22px;
  padding:20px;
}
.product span{
  font-size:12px;
  color:var(--brown);
  text-transform:uppercase;
  font-weight:800;
}
.product h4{margin:10px 0;font-size:18px}
.product p{font-size:14px;color:#615b52}
.section--editorial{
  background:var(--cream);
}
.story-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.story-grid article{
  background:var(--paper);
  padding:30px;
  border-radius:28px;
  border:1px solid var(--line);
  min-height:260px;
}
.story-grid span{
  color:var(--brown);
  font-weight:800;
}
.story-grid h3{
  font-size:24px;
  letter-spacing:-.04em;
}
.story-grid p{line-height:1.9;color:#5d574f}
.site-footer{
  padding:54px clamp(20px,6vw,86px);
  background:var(--black);
  color:var(--cream);
  display:flex;
  justify-content:space-between;
  align-items:center;
}

@media (max-width:820px){
  .site-header nav{display:none}
  .hero{grid-template-columns:1fr}
  .hero__visual{min-height:340px}
  .hero__inner{padding-top:130px}
  .problem-grid,.story-grid,.product-grid{grid-template-columns:1fr}
  .checks{grid-template-columns:1fr 1fr}
  .site-footer{display:block}
}