/* WATA shared stylesheet — brand tokens + article/guide layout (WCAG 2.2 AA reviewed) */
:root{
  --paper:#F6F6F2; --paper-2:#FCFCFA; --paper-3:#ECE5D6; --aquawash:#E3F1F8;
  --ink:#20262B; --ink-soft:#5B636B;
  --aqua:#16B6D6; --aqua-deep:#0A6E85; --aqua-soft:#BDE7F1; --leaf:#1E9E4A; --red:#CE1126;
  --line:#E2DDD2; --radius:4px; --maxw:760px; --header-h:70px;
  --jp:"Noto Sans JP",-apple-system,"Hiragino Kaku Gothic ProN",Meiryo,sans-serif;
  --jp-disp:"Zen Kaku Gothic New","Noto Sans JP",-apple-system,"Hiragino Kaku Gothic ProN",Meiryo,sans-serif;
  --en:"Jost","Noto Sans JP",sans-serif;
  --ease:cubic-bezier(.785,.135,.15,.86);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 16px)}
[id]{scroll-margin-top:calc(var(--header-h) + 16px)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{font-family:var(--jp);color:var(--ink);background:var(--paper-2);line-height:1.95;font-size:16px;letter-spacing:.03em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--aqua-deep);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:3px solid var(--aqua-deep);outline-offset:3px;border-radius:3px}
main:focus{outline:none}
h1,h2,h3,h4{font-family:var(--jp-disp);font-weight:900;line-height:1.4;letter-spacing:-.018em}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:12px 18px;z-index:300}
.skip:focus{left:0}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(20px,5vw,40px)}
.flag{display:flex;gap:5px}
.flag i{display:block;width:24px;height:3px;border-radius:2px}
.flag i:nth-child(1){background:var(--aqua)}.flag i:nth-child(2){background:var(--red)}.flag i:nth-child(3){background:var(--leaf)}
.kick{font-size:12.5px;font-weight:700;letter-spacing:.18em;color:var(--aqua-deep)}

/* header (tokens matched to homepage) */
header.site{border-bottom:1px solid var(--line);background:rgba(245,242,235,.9);position:sticky;top:0;z-index:200;backdrop-filter:saturate(1.1) blur(8px)}
header.site .bar{display:flex;align-items:center;justify-content:space-between;gap:24px;height:74px;max-width:1180px;margin-inline:auto;padding-inline:clamp(22px,5vw,52px)}
header.site .brand{display:inline-flex}
header.site img{height:44px;width:auto;display:block}
header.site .nav-links{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0}
header.site .nav-links a{color:var(--ink);font-size:14px;font-weight:700;letter-spacing:.04em}
header.site .to-shop{font-family:var(--jp);font-weight:700;font-size:14px;letter-spacing:.04em;background:var(--ink);color:#fff;border:0;border-radius:100vmax;padding:13px 26px;transition:background .2s;white-space:nowrap}
header.site .to-shop:hover{background:#000;color:#fff;text-decoration:none}
header.site .to-shop:focus-visible{outline:3px solid var(--aqua-deep);outline-offset:2px;box-shadow:0 0 0 2px #fff}
@media(max-width:860px){header.site .nav-links{display:none}}

/* breadcrumb */
.crumb{max-width:var(--maxw);margin:22px auto 0;padding-inline:clamp(20px,5vw,40px);font-size:12.5px;color:var(--ink-soft);letter-spacing:.04em}
.crumb a{color:var(--ink-soft)}
.crumb span{color:var(--ink)}

/* article */
article{padding-block:clamp(28px,5vw,46px) clamp(64px,9vw,110px)}
.eyebrow{display:flex;flex-direction:column;gap:14px;margin-bottom:18px}
article h1{font-size:clamp(27px,4.6vw,42px);line-height:1.38;margin:6px 0 18px}
.lede{font-size:clamp(16px,1.8vw,18px);color:#33393f;line-height:2;font-weight:500}
.meta{font-family:var(--en);font-size:12px;letter-spacing:.08em;color:var(--ink-soft);margin-top:18px}
.hero-img{margin:clamp(28px,5vw,44px) 0;border-radius:var(--radius);overflow:hidden;background:var(--paper-3);aspect-ratio:16/9}
.hero-img img{width:100%;height:100%;object-fit:cover}
article h2{font-size:clamp(21px,3vw,29px);line-height:1.5;margin:clamp(46px,6vw,68px) 0 16px;padding-top:18px;border-top:1px solid var(--line)}
article h3{font-size:clamp(17px,2.2vw,20px);margin:34px 0 10px;color:var(--ink)}
article p{margin:0 0 18px;color:#2c3137}
article strong{font-weight:700}
article .hl{background:linear-gradient(transparent 62%,var(--aqua-soft) 62%);font-weight:700;padding:0 1px}
article ul,article ol{margin:0 0 20px 1.3em}
article li{margin-bottom:9px}
.callout{background:var(--aquawash);border-radius:var(--radius);padding:22px 26px;margin:26px 0;font-size:15px;line-height:1.95}
.callout .t{font-family:var(--jp-disp);font-weight:900;margin-bottom:6px;color:var(--ink)}
.factbox{border:1px solid var(--line);border-radius:var(--radius);padding:22px 26px;margin:26px 0;background:var(--paper-2)}
.factbox .t{font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--aqua-deep);margin-bottom:10px}
.vh{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
table.mini{width:100%;border-collapse:collapse;font-size:14px;margin:22px 0}
table.mini th,table.mini td{padding:11px 10px;border-bottom:1px solid var(--line);text-align:center}
table.mini thead th{background:var(--ink);color:#fff;font-weight:700;letter-spacing:.04em}
table.mini tbody th{background:var(--paper-3);font-family:var(--en);font-weight:700}

/* CTA band */
.cta{background:var(--ink);color:#fff;border-radius:var(--radius);padding:clamp(30px,5vw,46px);margin:clamp(48px,7vw,72px) 0 0;text-align:center}
.cta h2{color:#fff;border:0;padding:0;margin:0 0 10px;font-size:clamp(20px,2.6vw,26px)}
.cta p{color:rgba(255,255,255,.86);margin-bottom:22px;font-size:15px}
.cta a{display:inline-block;background:#fff;color:var(--ink);font-weight:700;border-radius:100vmax;padding:14px 34px;font-size:15px}
.cta a:hover{text-decoration:none;background:var(--aqua-soft)}
.cta :focus-visible{outline-color:var(--aqua-soft)}

/* related */
.related{margin-top:clamp(48px,7vw,72px)}
.related .t{font-family:var(--jp-disp);font-weight:900;font-size:18px;margin-bottom:16px;letter-spacing:-.01em}
.related ul{list-style:none;margin:0;display:grid;gap:12px}
.related a{display:block;border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;color:var(--ink);font-weight:500;background:var(--paper-2);transition:border-color .2s,background .2s}
.related a:hover{border-color:var(--aqua);background:#fff;text-decoration:none}
.related a b{display:block;font-family:var(--jp-disp);font-weight:700;margin-bottom:2px}
.related a span{font-size:13px;color:var(--ink-soft)}

/* guide index */
.ghead{text-align:center;padding-block:clamp(40px,7vw,72px) clamp(20px,3vw,30px)}
.ghead .flag{justify-content:center;margin-bottom:14px}
.ghead h1{font-size:clamp(26px,4vw,40px);margin:12px 0 12px;line-height:1.4}
.ghead p{color:var(--ink-soft);max-width:42em;margin-inline:auto}
.glist{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;max-width:1000px;margin:0 auto;padding:clamp(20px,4vw,40px) clamp(20px,5vw,40px) clamp(64px,9vw,100px)}
.gcard{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--paper-2);transition:border-color .2s,transform .3s var(--ease)}
.gcard:hover{border-color:var(--aqua);transform:translateY(-4px)}
.gcard:hover{text-decoration:none}
.gcard .ph{display:block;aspect-ratio:16/10;background:var(--paper-3);overflow:hidden}
.gcard .ph img{width:100%;height:100%;object-fit:cover}
.gcard .bd{display:block;padding:20px 22px 24px;color:var(--ink)}
.gcard h2{font-size:18px;line-height:1.5;margin:0 0 8px}
.gcard p{font-size:13.5px;color:var(--ink-soft);line-height:1.8}
@media(max-width:720px){.glist{grid-template-columns:1fr}}

/* footer */
footer.site{background:var(--paper-3);color:var(--ink-soft);font-size:13px;padding-block:46px;border-top:1px solid var(--line)}
footer.site .in{max-width:1100px;margin-inline:auto;padding-inline:clamp(20px,5vw,40px);display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;align-items:center}
footer.site nav{display:flex;gap:18px;flex-wrap:wrap}
footer.site a{color:var(--ink-soft)}
footer.site .copy{font-family:var(--en);letter-spacing:.06em;width:100%;border-top:1px solid var(--line);padding-top:18px;margin-top:6px}
@media (prefers-contrast:more){:root{--ink-soft:#474E55}}