/* R16 color roles: ink = reading and diagrams; gray = context and dividers;
   blue = identity, actions and reference numbers; pink = current position/selection.
   White is the shared canvas; restrained gray surfaces group related information. */
@font-face{font-family:'DM Sans';src:url('fonts/DMSans-variable.woff2') format('woff2');font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:'Onest';src:url('fonts/Onest-variable.woff2') format('woff2');font-weight:100 900;font-style:normal;font-display:swap}
:root{
 --font:"DM Sans","Noto Sans JP",sans-serif;
 --title-font:"Onest","DM Sans","Noto Sans JP",sans-serif;
 --blue:#244ce6;--pink:#c92c77;--ink:#242629;--muted:#626870;
 --paper:#fff;--white:#fff;--paper-gray:#f4f5f6;--paper-blue:#eef5fa;--surface:#f4f5f6;--line:#d4d8dc;--guide:#9ca3aa;--soft-blue:#eef5fa;
 --page-width:1720px;--gutter:clamp(18px,2.5vw,44px);--section-gap:clamp(32px,4.5vw,64px);--measure:62ch;--radius:10px;
 --card-radius:10px;--card-pad:clamp(20px,2.2vw,32px);--card-shadow:0 8px 24px #24262906;
}
body{background:var(--paper);color:var(--ink);font:400 16px/1.7 var(--font)}
::selection{color:#fff;background:var(--pink)}
h1,h2,h3{font-weight:450;letter-spacing:-.03em;text-wrap:balance}
h1,h2,h3{color:var(--ink)}
h1{font-weight:400}
h1,h2,h3,dt,dd,blockquote{overflow-wrap:break-word}
.project-page main :is(h1,h2,h3,blockquote){font-family:var(--font);font-style:normal}
.project-page main em{font-style:normal;font-weight:550}
.project-page main :is(section,header,article,figure,blockquote,dl,dd),.about-hero>*,.work-index-copy{min-width:0}
p{overflow-wrap:break-word;text-wrap:pretty}
a,button{touch-action:manipulation}
a:hover{color:var(--blue)}
.site-header,.page-shell,.site-footer,.home-page .page-shell,.home-page .site-footer{max-width:var(--page-width);padding-inline:var(--gutter)}
.site-header{margin:0 auto;position:relative;z-index:30}
.header-inner{min-height:72px;display:grid;grid-template-columns:minmax(190px,1fr) auto minmax(190px,1fr);gap:20px;padding:10px 0;border:0;border-bottom:1px solid var(--line);border-radius:0;box-shadow:none;background:transparent}
.identity{grid-column:1;grid-row:1;display:inline-flex;align-items:center;gap:0;min-height:44px;width:max-content;color:var(--blue);font-size:clamp(1.5rem,2.2vw,2rem);line-height:1.1;font-weight:500;letter-spacing:-.065em}
.identity:hover{color:var(--blue)}
.view-nav,.utility-nav{display:flex;align-items:center;gap:clamp(18px,2.3vw,36px);font-size:.875rem;font-weight:450;line-height:1.3;color:var(--ink)}
.view-nav{grid-column:2;grid-row:1;justify-content:center;border:0;padding:0}
.utility-nav{grid-column:3;grid-row:1;justify-content:flex-end}
.view-nav a,.utility-nav>a{min-height:44px;display:inline-flex;align-items:center;position:relative;white-space:nowrap}
.view-nav a[aria-current="true"]::after,.utility-nav>a[aria-current="page"]::after{content:"";position:absolute;left:0;bottom:4px;width:100%;height:2px;transform:none;border-radius:2px;background:var(--pink)}
.view-nav a:hover,.utility-nav>a:hover{text-decoration:underline;text-underline-offset:6px}
.page-shell{width:100%;margin-inline:auto}
.project-heading{padding-block:clamp(32px,4.5vw,64px) 32px;border-bottom:1px solid var(--line)}
.project-heading h1{font-size:clamp(2rem,4vw,3.75rem);line-height:1.08;max-width:18ch;letter-spacing:-.055em;font-weight:450}
.eyebrow{color:var(--blue);font:500 .75rem/1.5 var(--font);letter-spacing:.055em}
.lede{font-size:clamp(1rem,1.2vw,1.125rem);line-height:1.65;color:var(--ink);max-width:52ch}
.meta-row{font-size:.8125rem;gap:16px 32px;line-height:1.55}
.meta-row dt{color:var(--muted)}
.section-heading h2{font-size:clamp(1.375rem,2.2vw,2rem);line-height:1.18}
.reading-text,.fold-body p{max-width:var(--measure)}
.section-block{border-color:var(--line)}
.button,.text-link{color:var(--blue)}
.button{border-color:var(--guide);border-radius:999px}
.icon-button{border-color:var(--guide);color:var(--blue);border-radius:50%;background:transparent}
.icon-button:hover{background:var(--soft-blue)}
.icon-button:disabled{opacity:.3}
.image-button{border-radius:3px}
.figure-caption,figcaption{color:var(--muted);font-size:.8125rem;line-height:1.65}
.image-dialog{background:var(--paper);border-radius:var(--card-radius);border-color:var(--guide)}
.viewer-caption,.viewer-bar{border-color:var(--line)}
.project-diagram{max-width:100%;max-height:none}
.v-icon{color:var(--ink)}
.v-flow h3,.v-grid h3,.v-evidence h3{font-family:var(--font);font-weight:550}
.v-flow p,.v-grid p,.v-relations p,.v-evidence p,.v-classification li{line-height:1.75}
.site-footer,.project-page .site-footer{display:flex;align-items:center;justify-content:space-between;gap:8px 24px;margin:28px auto 0;padding-block:16px 18px;color:var(--muted);font-size:.8125rem;line-height:1.5}
.site-footer::before,.project-page .site-footer::before{display:block;left:var(--gutter);right:var(--gutter);background:var(--line)}
.site-footer>a{min-height:44px;color:var(--blue)}
.site-footer .footer-name{gap:8px}

/* The index is a direct, illustrated table of contents. */
.page-work-index{--paper:#fff}
.work-index-heading{display:grid;grid-template-columns:1fr minmax(200px,.5fr);gap:32px;align-items:end}
.work-index-heading h1{max-width:18ch}
.work-index-heading .lede{margin:0;font-size:1rem;max-width:36ch}
.work-index{list-style:none;padding:0;margin:0}
.work-index>li{margin:0;border-bottom:1px solid var(--line)}
.work-index-row{display:grid;grid-template-columns:42px minmax(130px,220px) minmax(0,1fr) minmax(120px,.32fr) 24px;align-items:center;gap:clamp(18px,3vw,44px);padding:26px 0;transition:background-color .2s}
.work-index-row:hover{background:var(--soft-blue)}
.work-index-number{grid-column:1;grid-row:1;align-self:start;padding-top:4px;color:var(--blue);font-size:.8125rem;font-variant-numeric:tabular-nums}
.work-index-row .work-index-image{grid-column:2;grid-row:1}
.work-index-copy{grid-column:3;grid-row:1}
.work-index-image{display:flex;align-items:center;justify-content:center;height:148px;overflow:hidden;background:#fff;border-radius:4px}
.work-index-image img{display:block;width:100%;height:100%;object-fit:contain}
.work-index-image svg{width:100%;height:100%;padding:12px;fill:none;stroke:var(--ink);stroke-width:1.2}
.work-index-copy h2{font-size:clamp(1.375rem,2.4vw,2.375rem);line-height:1.15;margin:0 0 10px}
.work-index-copy p{font-size:.9375rem;line-height:1.65;max-width:48ch;margin:0;color:var(--ink)}
.work-index-meta{font-size:.75rem;line-height:1.7;color:var(--muted)}
.work-index-meta span{display:block}
.work-index-row>.icon{color:var(--blue)}

/* About keeps the person and the handwritten letter close together. */
.page-about{--paper:var(--paper-gray)}
.about-hero{display:grid;grid-template-columns:1.2fr 1fr;gap:clamp(28px,5vw,72px);align-items:end;padding-block:clamp(36px,4.5vw,64px) 40px;border-bottom:1px solid var(--line)}
.about-hero h1{font-size:clamp(2.5rem,5.2vw,5.5rem);line-height:1.02;font-weight:450;max-width:12ch;letter-spacing:-.06em}
.about-hero .lede{font-size:clamp(1.125rem,1.7vw,1.5rem);margin:0 0 22px;max-width:34ch}
.about-hero p:not(.lede):not(.eyebrow){max-width:52ch;font-size:.9375rem;line-height:1.8}
.about-hero .text-link{display:inline-flex;gap:16px;align-items:center;min-height:44px;margin-top:8px;font-size:.9375rem}
.about-time{display:grid;grid-template-columns:minmax(160px,.32fr) minmax(0,1fr);gap:clamp(32px,5vw,72px)}
.about-time .section-heading{display:block;margin:0}
.about-time .section-heading .eyebrow{margin-bottom:16px}
.about-time .section-heading h2{font-size:clamp(1.5rem,2.5vw,2.5rem);max-width:14ch}
.about-time .v-diagram{padding:0}
.about-time .v-flow{gap:28px}
.about-time .v-flow .eyebrow{color:var(--muted)}
.about-time .v-flow h3{color:var(--ink)}
.about-time .v-flow p{font-size:.875rem}
.contact-layout{max-width:none;grid-template-columns:minmax(210px,.55fr) minmax(0,1.45fr);gap:clamp(36px,7vw,112px)}
.contact-heading h2{color:var(--ink);font-weight:450;letter-spacing:-.05em}
.contact-address .contact-direct a{color:var(--blue)}
.contact-body{max-width:880px}
.contact-letter .contact-salutation,.contact-field input,.contact-field textarea{color:var(--ink)}
.contact-send-mark{background:var(--paper)}
.contact-send-thread::before{background:var(--paper)}
.contact-form-status[data-state="success"]{color:var(--pink)}
@media(max-width:1000px){
 .header-inner{grid-template-columns:minmax(150px,1fr) auto minmax(110px,1fr);gap:18px}
 .view-nav,.utility-nav{gap:20px;font-size:.8125rem}
 .about-time{grid-template-columns:1fr;gap:28px}
 .about-time .section-heading h2{max-width:24ch}
 .work-index-row{grid-template-columns:28px 160px minmax(0,1fr) 20px;gap:22px}
 .work-index-meta{grid-column:3;grid-row:1;align-self:end;transform:translateY(8px)}
 .work-index-copy{padding-bottom:48px}
 .work-index-row>.icon{grid-column:4;grid-row:1}
}
@media(max-width:760px){
 .header-inner{grid-template-columns:1fr auto;gap:4px 24px;padding:12px 0 8px;min-height:102px}
 .identity{font-size:1.5rem;grid-column:1;grid-row:1}
 .utility-nav{grid-column:2;grid-row:1;gap:22px;font-size:.8125rem}
 .view-nav{grid-column:1/-1;grid-row:2;justify-content:flex-start;gap:28px;font-size:.75rem}
 .view-nav a{min-height:36px}
 .view-nav a[aria-current="true"]::after{bottom:1px}
 .project-heading{padding-top:36px}
 .project-heading h1{font-size:clamp(2rem,7.8vw,2.5rem)}
 .section-heading:has(>.eyebrow){grid-template-columns:1fr;gap:12px}
 .section-heading h2{font-size:1.5rem}
 .site-footer,.project-page .site-footer{font-size:.75rem;margin-top:24px;padding-top:16px;gap:4px 16px}
 .work-index-heading{grid-template-columns:1fr;gap:24px}
 .work-index-heading .lede{max-width:50ch}
 .work-index-row{grid-template-columns:24px 96px minmax(0,1fr);gap:14px;padding-block:24px}
 .work-index-image{height:112px;align-self:start}
 .work-index-copy{padding-bottom:0}
 .work-index-copy h2{font-size:1.375rem;overflow-wrap:break-word}
 .work-index-copy p{font-size:.8125rem}
 .work-index-meta{grid-column:3;grid-row:2;transform:none;align-self:auto;font-size:.6875rem}
 .work-index-meta span{display:inline}
 .work-index-meta span+span::before{content:" · "}
 .work-index-row>.icon{display:none}
 .about-hero{grid-template-columns:1fr;gap:28px;padding-top:40px;padding-bottom:36px}
 .about-hero h1{font-size:clamp(2.25rem,8.5vw,3.75rem);max-width:14ch}
 .about-hero .lede{max-width:40ch;font-size:1.125rem}
 .about-time .v-flow{grid-template-columns:1fr 1fr;gap:32px}
 .about-time .v-flow>li::before,.about-time .v-flow>li::after{display:none}
 .contact-layout{grid-template-columns:1fr;gap:32px}
}
@media(max-width:800px){.contact-layout{grid-template-columns:minmax(0,1fr);gap:32px}}
@media(max-width:420px){
 .work-index-row{grid-template-columns:20px minmax(0,1fr);gap:12px}
 .work-index-image{grid-column:2;width:100%;height:160px}
 .work-index-copy{grid-column:2;grid-row:2}
 .work-index-meta{grid-column:2;grid-row:3}
 .work-index-copy h2{font-size:1.5rem}
 .about-time .v-flow{grid-template-columns:1fr;gap:28px}
}
@media(prefers-reduced-motion:reduce){.work-index-row{transition:none}}