:root{
  --bg:#F5F2EC;
  --surface:#FFFFFF;
  --ink:#17160F;
  --muted:#6E6A60;
  --line:#DDD7CB;
  --accent:#D9472B;
  --accent-ink:#FFFFFF;
  --shadow:0 1px 2px rgba(23,22,15,.06),0 12px 32px -12px rgba(23,22,15,.18);
  --radius:14px;
  --en:"Instrument Serif",Georgia,serif;
  --jp:"Zen Kaku Gothic New","Hiragino Sans",system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#13120E;--surface:#1D1C17;--ink:#F1EDE4;--muted:#A39E92;--line:#33312A;
    --accent:#F0674B;--shadow:0 1px 2px rgba(0,0,0,.3),0 12px 32px -12px rgba(0,0,0,.6);
  }
}
:root[data-theme="dark"]{
  --bg:#13120E;--surface:#1D1C17;--ink:#F1EDE4;--muted:#A39E92;--line:#33312A;
  --accent:#F0674B;--shadow:0 1px 2px rgba(0,0,0,.3),0 12px 32px -12px rgba(0,0,0,.6);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--jp);line-height:1.85;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit}
h1,h2,h3{margin:0;font-weight:500;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.en{font-family:var(--en);font-weight:400;letter-spacing:-.01em}
em{font-style:italic;color:var(--accent)}
.wrap{max-width:1180px;margin:0 auto;padding-left:24px;padding-right:24px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

/* header */
.site-header{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color .2s}
.site-header.scrolled{border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo-mark{width:30px;height:30px;color:var(--accent);flex:none;transition:transform .4s cubic-bezier(.2,.7,.2,1)}
.logo:hover .logo-mark{transform:rotate(-12deg) scale(1.08)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-en{font-family:var(--en);font-size:21px;letter-spacing:.005em}
.logo-jp{font-size:9.5px;letter-spacing:.16em;color:var(--muted)}
.nav{display:flex;align-items:center;gap:28px;font-size:14px}
.nav a{text-decoration:none;color:var(--muted);transition:color .15s}
.nav a:hover{color:var(--ink)}
.nav .nav-cta{color:var(--ink);border:1px solid var(--ink);padding:6px 16px;border-radius:999px}
.nav .nav-cta:hover{background:var(--ink);color:var(--bg)}

/* hero */
.hero{padding-top:clamp(56px,11vw,140px);padding-bottom:clamp(64px,10vw,120px)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);border:1px solid var(--line);padding:6px 14px;border-radius:999px;background:var(--surface)}
.dot{width:8px;height:8px;border-radius:50%;background:#3BAA6E;box-shadow:0 0 0 4px color-mix(in srgb,#3BAA6E 22%,transparent)}
.hero-title{margin-top:28px;font-size:clamp(56px,12.5vw,176px);line-height:.95;display:flex;flex-direction:column}
.hero-title .en{display:block}
.hero-foot{margin-top:clamp(36px,6vw,64px);display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:28px;border-top:1px solid var(--line);padding-top:28px}
.hero-lead{font-size:clamp(15px,1.6vw,18px);max-width:34em}

.btn{display:inline-flex;align-items:center;gap:10px;background:var(--ink);color:var(--bg);text-decoration:none;padding:14px 26px;border-radius:999px;font-weight:500;font-size:15px;transition:transform .2s,background .2s}
.btn:hover{background:var(--accent);color:var(--accent-ink);transform:translateY(-2px)}
.btn-lg{padding:18px 34px;font-size:16px}

/* sections */
.section{scroll-margin-top:40px;padding-top:clamp(64px,9vw,120px);padding-bottom:clamp(32px,4vw,48px)}
.section-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px 32px;margin-bottom:clamp(32px,5vw,56px)}
.section-head h2{font-family:var(--en);font-size:clamp(44px,7vw,84px);font-weight:400;line-height:1;display:flex;align-items:flex-start;gap:14px}
.num{font-family:var(--jp);font-size:13px;font-weight:500;color:var(--accent);letter-spacing:.08em;margin-top:.5em}
.section-head p{color:var(--muted);font-size:14px}

/* works */
.works{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(28px,4vw,48px) clamp(20px,3vw,36px)}
.work a{display:block;text-decoration:none}
.frame{border-radius:var(--radius);overflow:hidden;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s}
.work a:hover .frame{transform:translateY(-6px)}
.frame-bar{display:flex;align-items:center;gap:6px;height:34px;padding:0 14px;border-bottom:1px solid var(--line);font-size:11px;color:var(--muted)}
.frame-bar i{width:9px;height:9px;border-radius:50%;background:var(--line)}
.frame-bar span{margin-left:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.frame-view{position:relative;aspect-ratio:16/10;overflow:hidden;background:#fff}
.frame-view iframe{position:absolute;top:0;left:0;width:1280px;height:800px;border:0;transform-origin:0 0;pointer-events:none}
.work-meta{padding:20px 4px 0}
.work-meta h3{font-size:20px;font-weight:700;display:flex;align-items:center;gap:8px}
.work-meta h3::after{content:"↗";font-weight:400;color:var(--muted);transition:transform .2s,color .2s}
.work a:hover h3::after{transform:translate(3px,-3px);color:var(--accent)}
.work-meta p{margin-top:8px;color:var(--muted);font-size:14.5px}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.tags li{font-size:12px;border:1px solid var(--line);padding:2px 10px;border-radius:999px;color:var(--muted)}

/* services */
.services{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--ink)}
.service{padding:28px 28px 32px 0;border-right:1px solid var(--line)}
.service+.service{padding-left:28px}
.service:last-child{border-right:0}
.service h3{font-size:15px;font-weight:700;display:flex;flex-direction:column;gap:6px}
.service h3 .en{font-size:34px;line-height:1}
.service p{margin-top:16px;color:var(--muted);font-size:14.5px}

/* process */
.process{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;counter-reset:s}
.process li{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px 24px}
.step{font-family:var(--en);font-size:40px;line-height:1;color:var(--accent)}
.process h3{margin-top:14px;font-size:16px;font-weight:700}
.process p{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.75}

/* about */
.about-body{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(28px,5vw,72px);align-items:start}
.about-lead{font-size:clamp(20px,2.4vw,28px);font-weight:500;line-height:1.7}
.about-text>p{color:var(--muted)}
.skills{margin:28px 0 0;display:grid;grid-template-columns:auto 1fr;gap:0}
.skills dt,.skills dd{padding:14px 0;border-top:1px solid var(--line);margin:0}
.skills dt{font-family:var(--en);font-size:20px;padding-right:28px;line-height:1.4}
.skills dd{font-size:14.5px}

/* contact */
.contact{padding-bottom:clamp(64px,9vw,120px)}
.contact-card{background:var(--ink);color:var(--bg);border-radius:calc(var(--radius) * 2);padding:clamp(40px,7vw,96px) clamp(24px,6vw,80px);text-align:center;display:flex;flex-direction:column;align-items:center;gap:22px}
.contact-title{font-size:clamp(44px,7.5vw,96px);line-height:1}
.contact-card>p{opacity:.75}
.contact-card .btn{background:var(--bg);color:var(--ink);margin-top:8px}
.contact-card .btn:hover{background:var(--accent);color:var(--accent-ink)}

.site-footer{display:flex;justify-content:space-between;gap:16px;padding-top:28px;padding-bottom:40px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.site-footer a{text-decoration:none}
.site-footer a:hover{color:var(--ink)}

/* reveal */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
  .frame,.btn{transition:none}
}

/* responsive */
@media (max-width:960px){
  .process{grid-template-columns:repeat(2,minmax(0,1fr))}
  .process li:last-child{grid-column:1/-1}
}
@media (max-width:760px){
  .wrap{padding-left:16px;padding-right:16px}
  .nav a:not(.nav-cta){display:none}
  .works{grid-template-columns:1fr}
  .services{grid-template-columns:1fr}
  .service,.service+.service{padding:24px 0;border-right:0;border-bottom:1px solid var(--line)}
  .about-body{grid-template-columns:1fr}
  .about-lead br{display:none}
  .hero-lead br{display:none}
}
@media (max-width:480px){
  .process{grid-template-columns:1fr}
  .site-footer{flex-direction:column}
}