/* ShinobiTools design kit - tokens.css  (plan 3.4-3.6, 8.3, 8.4, 8.6)
   Neutral base: white #ffffff, ink #111827, accent #1d4ed8. A site overrides ONLY the five accent
   tokens + surface via palettes/<site>.css (generated by palette.py). Dark mode follows the OS
   (prefers-color-scheme); light is the default; there is no toggle. Install path: /site/tokens.css */

/* ---- Archivo, self-hosted (OFL 1.1, see fonts/OFL.txt). Subsets as served by Google Fonts v25. ---- */
@font-face{font-family:"Archivo";font-style:normal;font-weight:100 900;font-stretch:62% 125%;font-display:swap;
  src:url(fonts/archivo-vietnamese.woff2) format("woff2");
  unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:"Archivo";font-style:normal;font-weight:100 900;font-stretch:62% 125%;font-display:swap;
  src:url(fonts/archivo-latin-ext.woff2) format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Archivo";font-style:normal;font-weight:100 900;font-stretch:62% 125%;font-display:swap;
  src:url(fonts/archivo-latin.woff2) format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  color-scheme:light dark;

  /* colour: neutral base (light) */
  --bg:#ffffff;
  --surface:#f4f6fd;          /* tinted surface; the site palette overrides the tint */
  --ink:#111827;              /* 17.7:1 on bg */
  --muted:#4b5563;            /* 7.56:1 on bg, 7.05:1 on surface */
  --edge:#6b7280;             /* input/control border: 4.83:1 on bg (UI needs 3:1) */
  --line:#e5e7eb;             /* decorative hairline only, never the sole cue */
  --accent-fill:#1d4ed8;      /* button / badge background */
  --on-accent:#ffffff;        /* text on --accent-fill, >= 4.5:1 */
  --accent-text:#1d4ed8;      /* links and accent text, >= 4.5:1 on bg AND surface */
  --accent-ui:#1d4ed8;        /* focus ring, active borders, >= 3:1 */
  --err:#b91c1c;
  --ok:#047857;

  /* type: 7 sizes, 14 px floor (rem so user font-size settings still work) */
  --fs-1:.875rem;  /* 14 caption, legal, price/VAT line */
  --fs-2:1rem;     /* 16 UI, buttons */
  --fs-3:1.125rem; /* 18 body */
  --fs-4:1.375rem; /* 22 h3, lead */
  --fs-5:1.75rem;  /* 28 h2 */
  --fs-6:2.25rem;  /* 36 h1 small screens */
  --fs-7:3rem;     /* 48 h1 hero, large screens */
  --lh-body:1.6; --lh-head:1.2;

  /* spacing scale (4 px base) */
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;

  /* shape and width */
  --radius:12px; --radius-sm:8px;
  --prose:68ch;               /* prose never fills the page: 60-72ch */
  --page:1120px;
  --gutter:clamp(16px,4vw,32px);
  --touch:44px;               /* minimum interactive height/width */

  /* fonts: Archivo covers latin, latin-ext, vietnamese. Other scripts use the system stack. */
  --font:"Archivo",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0d1117; --surface:#171f31; --ink:#f3f4f6; --muted:#a3acb9; --edge:#8b949e; --line:#30363d;
    --accent-fill:#1d4ed8; --on-accent:#ffffff; --accent-text:#4c80fb; --accent-ui:#2a5fe9;
    --err:#fca5a5; --ok:#6ee7b7;
  }
}

/* script stacks: system fonts only (Archivo has no glyphs for these) */
:root:lang(ru){--font:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
:root:lang(hi){--font:"Noto Sans Devanagari","Nirmala UI","Kohinoor Devanagari",system-ui,sans-serif}
:root:lang(ar),:root:lang(fa){--font:"Segoe UI","Noto Sans Arabic","Geeza Pro",Tahoma,system-ui,sans-serif}
:root:lang(ja){--font:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic","Meiryo","Noto Sans JP",system-ui,sans-serif}
:root:lang(ko){--font:"Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",system-ui,sans-serif}
:root:lang(zh){--font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,sans-serif}

/* ---- base elements ---- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--sp-8) + var(--sp-3))}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:var(--fs-3);line-height:var(--lh-body);
  overflow-wrap:break-word;-webkit-font-smoothing:antialiased}
img,svg,video{max-width:100%;height:auto}
h1,h2,h3,h4{line-height:var(--lh-head);margin:0 0 var(--sp-3);font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(var(--fs-6),1.4rem + 3.2vw,var(--fs-7));text-wrap:balance;letter-spacing:-.02em;font-weight:800}
h2{font-size:var(--fs-5);margin-top:var(--sp-7)}
h3{font-size:var(--fs-4);margin-top:var(--sp-6)}
h4{font-size:var(--fs-3)}
p,ul,ol,dl{margin:0 0 var(--sp-4)}
small,.small{font-size:var(--fs-1)}
.muted{color:var(--muted)}
:focus-visible{outline:3px solid var(--accent-ui);outline-offset:2px;border-radius:2px}
::selection{background:var(--accent-fill);color:var(--on-accent)}

/* layout helpers */
.k-page{max-width:var(--page);margin:0 auto;padding-inline:var(--gutter)}
.prose{max-width:var(--prose)}
.k-section{padding-block:var(--sp-7)}
.k-surface{background:var(--surface)}
.k-grid{display:grid;gap:var(--sp-4);grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr))}
.k-grid--4{grid-template-columns:repeat(4,1fr)} .k-grid--3{grid-template-columns:repeat(3,1fr)} .k-grid--2{grid-template-columns:repeat(2,1fr)}
@media (max-width:900px){.k-grid--4{grid-template-columns:repeat(2,1fr)}.k-grid--3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.k-grid--4,.k-grid--3,.k-grid--2{grid-template-columns:1fr}}

/* ---- THE in-text link style (the only one besides plain navigation links). bai69: the gallery rule is scoped to main.k-gal; on adopted real pages adopt.css owns it (its rule excludes pass card, ads, consent) ---- */
.prose a,.link,main.k-gal :is(p,li,dd,td,figcaption) a:not(.btn):not(.k-card):not(.k-nav-link){
  color:var(--accent-text);font-weight:600;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.15em}
.prose a:hover,.link:hover{text-decoration-thickness:2px}

/* ---- buttons: touch target >= 44 px ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-2);min-height:var(--touch);min-width:var(--touch);
  padding:var(--sp-2) var(--sp-5);font:inherit;font-size:var(--fs-2);font-weight:700;text-decoration:none;cursor:pointer;
  background:var(--accent-fill);color:var(--on-accent);border:1px solid var(--accent-ui);border-radius:var(--radius-sm)}
.btn:hover,.btn:active{background:var(--accent-fill-hover,var(--accent-fill))}   /* hover fill moves AWAY from the text colour (palette.py), contrast.py checks it */
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--edge)}

/* ---- form fields ---- */
input,select,textarea{font:inherit;font-size:var(--fs-2);color:var(--ink);background:var(--bg);border:1px solid var(--edge);
  border-radius:var(--radius-sm);min-height:var(--touch);padding:var(--sp-2) var(--sp-3)}

/* ---- FAQ accordion: <details class="faq"><summary>Q</summary><div>A</div></details> ---- */
.faq-list{max-width:var(--prose)}
details.faq{border-bottom:1px solid var(--line)}
details.faq>summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:var(--sp-4);
  min-height:var(--touch);padding:var(--sp-3) 0;font-weight:700;font-size:var(--fs-3)}
details.faq>summary::-webkit-details-marker{display:none}
details.faq>summary::after{content:"+";font-size:var(--fs-5);line-height:1;font-weight:400;color:var(--accent-text);flex:none}
details.faq[open]>summary::after{content:"\2212"}
details.faq>div{padding:0 0 var(--sp-4);color:var(--muted)}
details.faq>div>:last-child{margin-bottom:0}

/* tables inside prose never force the page wide */
.prose table{display:block;overflow-x:auto;border-collapse:collapse}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:var(--sp-2) var(--sp-3);text-align:start}

@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}