/* Layout: one quiet centered column (max 1040px); thin rules, no cards. Palette follows the mark: indigo (ai) for buttons and emphasis, amber (kohaku) for small marks and numbers. */
:root{
  --bg:#FFFFFF;
  --fg:#1C1A18;
  --muted:#5E6068;
  --rule:#E1E2E6;
  --soft:#F4F5F8;
  --accent:#17386E;
  --accent-ink:#FFFFFF;
  --amber:#B8601A;
  --display:'Shippori Mincho','Hiragino Mincho ProN','Yu Mincho','Noto Serif JP',Georgia,serif;
  --body:'Zen Kaku Gothic New','Hiragino Kaku Gothic ProN','Yu Gothic','Noto Sans JP',Helvetica,Arial,sans-serif;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){--bg:#15171C;--fg:#ECEAE4;--muted:#A9A69E;--rule:#2C3038;--soft:#1D2027;--accent:#8FB2EA;--accent-ink:#0E1A30;--amber:#DE9148;color-scheme:dark}
}
:root[data-theme="dark"]{--bg:#15171C;--fg:#ECEAE4;--muted:#A9A69E;--rule:#2C3038;--soft:#1D2027;--accent:#8FB2EA;--accent-ink:#0E1A30;--amber:#DE9148;color-scheme:dark}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--body);font-size:17px;line-height:1.75;font-weight:400}
img{max-width:100%;height:auto;display:block}
a{color:var(--fg);text-decoration:underline;text-decoration-color:var(--rule);text-underline-offset:.2em}
a:hover{text-decoration-color:var(--amber)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
h1,h2,h3{font-family:var(--display);font-weight:500;line-height:1.3;margin:0;text-wrap:balance;letter-spacing:-0.005em}
h1{font-size:clamp(30px,4.6vw,50px);line-height:1.2}
h2{font-size:clamp(23px,3vw,32px)}
h3{font-size:20px}
p{margin:0}
ul{margin:0;padding-left:1.3em}
li{margin:0}
.wrap{max-width:1040px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.measure{max-width:38em}
.muted{color:var(--muted)}
.small{font-size:15px}

/* header */
.site-header{padding-block:22px 18px;border-bottom:1px solid var(--rule)}
.site-header .wrap{display:flex;flex-wrap:wrap;gap:14px 28px;align-items:center;justify-content:space-between}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;color:var(--fg);line-height:1;white-space:nowrap}
.brand img{width:44px;height:44px;object-fit:contain}
.brand span{font-size:17px;font-weight:700;letter-spacing:-.02em}
.nav{display:flex;flex-wrap:wrap;gap:6px 24px;font-size:15px;letter-spacing:.02em}
.nav a{text-decoration:none;padding-block:6px;border-bottom:1px solid transparent}
.nav a:hover,.nav a[aria-current="page"]{border-bottom-color:var(--amber)}

/* sections */
.section{padding-block:56px}
.section + .section{border-top:1px solid var(--rule)}
.label{display:flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:22px}
.label::before{content:"";display:inline-block;width:10px;height:2px;background:var(--amber)}
.label.ja{letter-spacing:.08em;text-transform:none;font-size:14px}
.stack{display:flex;flex-direction:column;gap:18px}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:32px 48px}
.cols > *{min-width:0}
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:28px 64px;align-items:start}
@media (max-width:760px){.two{grid-template-columns:1fr}}

/* hero */
.hero{padding-block:72px 64px}
.hero .eyebrow{font-size:14px;letter-spacing:.06em;color:var(--muted);margin-bottom:22px}
.hero h1{max-width:18em}
.hero .lede{margin-top:26px;font-size:19px;max-width:36em}
.actions{display:flex;flex-wrap:wrap;gap:14px 24px;align-items:center;margin-top:34px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 26px;border:1px solid var(--fg);text-decoration:none;font-size:16px;letter-spacing:.02em;color:var(--fg);background:transparent}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn:hover{border-color:var(--amber)}
.btn.primary:hover{filter:brightness(.93)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:28px 40px;counter-reset:step}
.steps > div{min-width:0;border-top:1px solid var(--fg);padding-top:18px}
.steps .n{font-family:var(--display);font-size:30px;line-height:1;color:var(--amber);margin-bottom:12px}
.steps h3{margin-bottom:8px}

/* definition rows */
.facts{display:grid;grid-template-columns:minmax(0,1fr);gap:0;border-top:1px solid var(--rule)}
.facts > div{display:grid;grid-template-columns:minmax(0,1fr);gap:4px 32px;padding-block:14px;border-bottom:1px solid var(--rule)}
.facts dt{color:var(--muted);font-size:15px;margin:0}
.facts dd{margin:0;min-width:0}
@media (min-width:640px){.facts > div{grid-template-columns:220px minmax(0,1fr)}}

/* recent work */
.entry{border-top:1px solid var(--rule);padding-block:18px 22px}
.entry .when{font-size:14px;color:var(--muted);margin-bottom:6px}
.entry h3{margin-bottom:8px}

/* person */
.person{display:flex;flex-wrap:wrap;gap:28px 40px;align-items:flex-start}
.person img{width:132px;height:132px;object-fit:cover;flex:none}
.person .who{flex:1 1 300px;min-width:0}
.person .name{font-family:var(--display);font-size:26px;line-height:1.3}
.inline-links{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:14px;font-size:15px}
.inline-links a{display:inline-flex;align-items:center;gap:8px}
.inline-links img{width:16px;height:16px}

/* contact */
.email-row{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center}
.email{font-family:var(--display);font-size:clamp(20px,3vw,28px);word-break:break-all}
.copy{font:inherit;font-size:14px;padding:6px 14px;min-height:36px;border:1px solid var(--rule);background:var(--soft);color:var(--fg);cursor:pointer}
.copy:hover{border-color:var(--amber)}
form{display:flex;flex-direction:column;gap:18px;max-width:40em}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:15px}
.field label .req{color:var(--muted);font-size:13px;margin-left:8px}
input[type=text],input[type=email],textarea{font:inherit;font-size:16px;padding:11px 12px;border:1px solid var(--rule);background:var(--bg);color:var(--fg);width:100%;min-height:46px;border-radius:0}
textarea{min-height:180px;resize:vertical}
input:focus,textarea:focus{border-color:var(--accent)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-note{font-size:15px;color:var(--muted)}
.status{font-size:15px;padding:12px 14px;background:var(--soft);border-left:2px solid var(--amber)}
.status:empty{display:none}
button.btn{font:inherit;cursor:pointer}

/* legal */
.legal h1{font-size:clamp(28px,4vw,40px)}
.legal .ja-note{font-family:var(--body);font-size:18px;margin-top:10px}
.legal .intro{margin-top:18px;max-width:40em}
.legal .updated{margin-top:10px;font-size:15px;color:var(--muted)}
.legal section{padding-block:28px;border-top:1px solid var(--rule)}
.legal section:first-of-type{margin-top:36px}
.legal h2{font-size:21px;margin-bottom:12px}
.legal p + p{margin-top:12px}
.legal ul{display:flex;flex-direction:column;gap:6px}
.disclosure > div{display:grid;grid-template-columns:minmax(0,1fr);gap:4px 32px;padding-block:12px;border-bottom:1px solid var(--rule)}
.disclosure > div:first-child{border-top:1px solid var(--rule)}
.disclosure dt{color:var(--muted);font-size:15px}
.disclosure dd{margin:0;min-width:0}
@media (min-width:640px){.disclosure > div{grid-template-columns:260px minmax(0,1fr)}}

/* footer */
.site-footer{border-top:1px solid var(--rule);padding-block:28px 40px;font-size:14px;color:var(--muted)}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between;align-items:center}
.site-footer nav{display:flex;flex-wrap:wrap;gap:6px 20px}
.site-footer a{color:var(--muted);text-decoration:none}
.site-footer a:hover{color:var(--fg)}

@media (prefers-reduced-motion: reduce){*{transition:none!important}}