/* Sumi (墨) public-site stylesheet, v1 for digiwaku.com + yakusha.ai.
   Tokens: /workspace/atelier/system/tokens.css (approved Oct 19, 2026).
   Light is the default design; dark follows prefers-color-scheme. */

@font-face{font-family:"Inter";src:url("fonts/Inter-var-latin.woff2") format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url("fonts/JetBrainsMono-var-latin.woff2") format("woff2");font-weight:100 800;font-style:normal;font-display:swap}

:root{
  color-scheme:light dark;
  --edge:var(--ink);--edgeP:62%;
  --bg:#f5f7f8;--surf:#ffffff;--ink:#1e2327;--mute:#5d6670;--faint:#67707a;--line:#e1e6ea;
  --red:#fdecec;--redA:#e48585;--redT:#b4413f;
  --orange:#fdf0e3;--orangeA:#e9a56c;--orangeT:#a85a1e;
  --yellow:#fbf5dc;--yellowA:#dcc25c;--yellowT:#86690f;
  --green:#e6f5ea;--greenA:#74bf8e;--greenT:#2f7a4a;
  --blue:#e5eefb;--blueA:#7aa5e0;--blueT:#2f62a8;
  --purple:#efeafb;--purpleA:#a491dc;--purpleT:#6449a8;
  /* focus brackets: soft blue, deepened in light so it clears 3:1 on --bg */
  --focus:#5b8bd0;
  /* per-site accent (overridden by .site-*) */
  --acc:var(--blue);--accA:var(--blueA);--accT:var(--blueT);
  --sans:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans JP","Hiragino Sans","Yu Gothic",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --maxw:1120px;--pad:24px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --edge:#000;--edgeP:50%;
  --bg:#14171a;--surf:#1c2024;--ink:#e5e9ed;--mute:#9fa8b1;--faint:#87909a;--line:#2b3137;
  --red:#3a2224;--redA:#eba3a3;--redT:#eba3a3;
  --orange:#3a2a1e;--orangeA:#efbd92;--orangeT:#efbd92;
  --yellow:#36311c;--yellowA:#e8d48a;--yellowT:#e8d48a;
  --green:#1d3326;--greenA:#9fd4b0;--greenT:#9fd4b0;
  --blue:#1d2b44;--blueA:#a3c1ec;--blueT:#a3c1ec;
  --purple:#2b2444;--purpleA:#c0b2ec;--purpleT:#c0b2ec;
  --focus:#a3c1ec;
}}
:root[data-theme=dark]{
  --edge:#000;--edgeP:50%;
  --bg:#14171a;--surf:#1c2024;--ink:#e5e9ed;--mute:#9fa8b1;--faint:#87909a;--line:#2b3137;
  --red:#3a2224;--redA:#eba3a3;--redT:#eba3a3;
  --orange:#3a2a1e;--orangeA:#efbd92;--orangeT:#efbd92;
  --yellow:#36311c;--yellowA:#e8d48a;--yellowT:#e8d48a;
  --green:#1d3326;--greenA:#9fd4b0;--greenT:#9fd4b0;
  --blue:#1d2b44;--blueA:#a3c1ec;--blueT:#a3c1ec;
  --purple:#2b2444;--purpleA:#c0b2ec;--purpleT:#c0b2ec;
  --focus:#a3c1ec;
}
.site-digiwaku{--acc:var(--orange);--accA:var(--orangeA);--accT:var(--orangeT)}
.site-yakusha{--acc:var(--blue);--accA:var(--blueA);--accT:var(--blueT)}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:80px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
body{min-height:100vh;display:flex;flex-direction:column;margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.6 var(--sans);font-optical-sizing:auto;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2,h3{font-weight:600;letter-spacing:-.025em;line-height:1.12;text-wrap:balance}
a{color:inherit}
img,svg{display:block}
[lang="ja"]{font-family:"Noto Sans JP","Hiragino Sans","Yu Gothic","Noto Sans CJK JP",var(--sans);letter-spacing:0}
.mono{font-family:var(--mono);letter-spacing:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}
@media (max-width:640px){:root{--pad:20px}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- focus: four square corner brackets ---------- */
:focus{outline:none}
:focus-visible{outline:none}
a,button{position:relative}
a:focus-visible::after,button:focus-visible::after,.field:focus-within::after{
  content:"";position:absolute;inset:-6px;pointer-events:none;border-radius:0;
  background:
    linear-gradient(var(--focus),var(--focus)) top left/10px 2px,
    linear-gradient(var(--focus),var(--focus)) top left/2px 10px,
    linear-gradient(var(--focus),var(--focus)) top right/10px 2px,
    linear-gradient(var(--focus),var(--focus)) top right/2px 10px,
    linear-gradient(var(--focus),var(--focus)) bottom left/10px 2px,
    linear-gradient(var(--focus),var(--focus)) bottom left/2px 10px,
    linear-gradient(var(--focus),var(--focus)) bottom right/10px 2px,
    linear-gradient(var(--focus),var(--focus)) bottom right/2px 10px;
  background-repeat:no-repeat}

.skip{position:absolute;left:16px;top:-80px;z-index:20;background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:8px;font-weight:500;text-decoration:none}
.skip:focus{top:12px}

/* ---------- labels, badges ---------- */
.lbl{font-size:11px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);line-height:1.4}
.kicker{display:inline-flex;align-items:center;gap:9px;font-size:11px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--mute)}
.kicker::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--accA);flex:none}
.badge{display:inline-flex;align-items:center;gap:7px;height:26px;padding:0 11px;border:1.5px solid var(--accA);border-radius:20px;color:var(--accT);font-size:11px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;white-space:nowrap;background:var(--surf)}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accA)}
.box{display:inline-flex;align-items:center;height:22px;padding:0 7px;border:1.5px solid var(--ink);border-radius:5px;font:500 10.5px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink);white-space:nowrap}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:42px;padding:0 18px;border:1.5px solid var(--ink);border-radius:8px;background:transparent;color:var(--ink);font:500 14.5px/1 var(--sans);text-decoration:none;white-space:nowrap;cursor:pointer;transition:background-color .12s,color .12s}
.btn:hover{background:var(--surf)}
.btn.p{background:var(--ink);color:var(--bg)}
.btn.p:hover{background:color-mix(in oklab,var(--ink) 86%,var(--bg))}
.btn.sm{height:34px;padding:0 13px;font-size:13.5px}
.btn.lg{height:48px;padding:0 22px;font-size:15px}
.btn svg{width:16px;height:16px;flex:none}
.btn[disabled]{opacity:.65;cursor:progress}
.tlink{color:var(--ink);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:var(--faint)}
.tlink:hover{text-decoration-color:var(--ink)}

/* ---------- header ---------- */
.top{position:sticky;top:0;z-index:10;background:var(--bg);border-bottom:1.5px solid var(--ink)}
.top .wrap{height:64px;display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:600;font-size:16.5px;letter-spacing:-.02em;text-decoration:none}
.brand svg{width:26px;height:26px;flex:none}
.top nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.top nav a:not(.btn){height:34px;display:inline-flex;align-items:center;padding:0 11px;border-radius:8px;color:var(--mute);font-size:14px;font-weight:500;text-decoration:none;border:1.5px solid transparent}
.top nav a:not(.btn):hover{color:var(--ink);border-color:var(--line)}
.top nav .btn{margin-left:10px}
@media (max-width:820px){.top nav a:not(.btn){display:none}.top nav .btn{margin-left:0}}

/* ---------- sections ---------- */
.sec{padding:112px 0}
.sec + .sec{border-top:1px solid var(--line)}
.sh{max-width:680px}
.sh h2{font-size:clamp(30px,4vw,42px);margin-top:16px}
.sh p.lead{color:var(--mute);font-size:17px;line-height:1.6;margin-top:16px;max-width:60ch}
@media (max-width:640px){.sec{padding:72px 0}.sh p.lead{font-size:16px}}

.card{background:var(--surf);border:1.5px solid var(--ink);border-radius:12px}

/* ---------- footer ---------- */
.foot{border-top:1.5px solid var(--ink);background:var(--surf);font-size:13.5px;color:var(--mute)}
.foot .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px 28px;padding-top:28px;padding-bottom:28px}
.foot .legal{display:flex;flex-wrap:wrap;gap:6px 10px;align-items:center}
.foot .sep{color:var(--faint)}
/* phones: the legal line always wraps, so stack it and drop the "·" that would start the second line */
@media (max-width:640px){.foot .sep{display:none}.foot .legal{flex-direction:column;align-items:flex-start;gap:2px}}
.foot ul{display:flex;flex-wrap:wrap;gap:6px 22px}
.foot a{color:var(--mute);text-decoration:none}
.foot a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}

/* ---------- status pages (404/500/503) ---------- */
.status{display:grid;place-items:center;padding:72px 0;flex:1}
.status .card{width:min(620px,100%);overflow:hidden}
.status .bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 18px;border-bottom:1px solid var(--line)}
.status .body{padding:40px 36px 36px}
.status .code{font:600 clamp(64px,12vw,104px)/.9 var(--sans);letter-spacing:-.05em;font-variant-numeric:tabular-nums}
.status h1{font-size:clamp(24px,3.5vw,30px);margin-top:22px}
.status p{color:var(--mute);margin-top:12px;max-width:46ch}
.status .acts{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
@media (max-width:640px){.status .body{padding:30px 22px 26px}}

/* ---------- reading page (privacy) ---------- */
.read{padding:88px 0 112px}
.read article{max-width:68ch;margin:0 auto}
.read h1{font-size:clamp(34px,5vw,48px);margin-top:16px}
.read .meta{margin-top:14px;color:var(--faint);font-size:14px}
.read .intro{font-size:18px;line-height:1.65;color:var(--ink);margin-top:28px;padding-top:28px;border-top:1px solid var(--line)}
.read h2{font-size:21px;letter-spacing:-.015em;margin-top:44px;padding-top:20px;border-top:1px solid var(--line);display:flex;gap:14px;align-items:baseline}
.read h2 .n{font:500 12px var(--mono);color:var(--faint);letter-spacing:0;min-width:2ch}
.read p,.read li{font-size:16.5px;line-height:1.7;color:var(--mute)}
.read p{margin-top:14px}
.read strong{color:var(--ink);font-weight:600}
.read ul{margin-top:14px;display:grid;gap:14px}
.read li{padding-left:22px;position:relative}
.read li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border:1.5px solid var(--ink);border-radius:2px}
.read a:not(.btn){color:var(--ink);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.placeholder{font-family:var(--mono);font-size:.88em;color:var(--yellowT);background:var(--yellow);border:1px solid var(--yellowA);border-radius:4px;padding:1px 6px}
.b-blue{--accA:var(--blueA);--accT:var(--blueT)}
.st-red{--accA:var(--redA);--accT:var(--redT)}
.st-orange{--accA:var(--orangeA);--accT:var(--orangeT)}
.st-yellow{--accA:var(--yellowA);--accT:var(--yellowT)}
.st-dom{font-size:12px;color:var(--faint)}
.status .st-help{margin-top:26px;padding-top:18px;border-top:1px solid var(--line);font-size:14px;max-width:none}
main{flex:1 0 auto;display:flex;flex-direction:column}
main>*{flex:none}
main>.status{flex:1 0 auto}
.read .kicker{font-size:11px;margin:0;line-height:1.4;color:var(--mute)}

:root[data-theme=light]{color-scheme:light}
:root[data-theme=dark]{color-scheme:dark}