/* Cotoloop site: 生成りの紙に、ロゴの青と緑。丸ゴシックの見出しと読みやすい本文 */
:root{
  --paper:#FBF9F3; --card:#FFFFFF; --ink:#1B2733; --muted:#5B6874; --line:#E4E0D6;
  --blue:#0B5CB8; --sky:#3FB3F2; --leaf:#2FBF8A; --soft:#EEF5FB;
  --f-display:"Zen Maru Gothic","Hiragino Maru Gothic ProN","BIZ UDPGothic",sans-serif;
  --f-body:"BIZ UDPGothic","Hiragino Sans","Yu Gothic",system-ui,sans-serif;
  --f-en:"Nunito","Helvetica Neue",Arial,sans-serif;
}
@media (prefers-color-scheme: dark){
  :root{--paper:#11171D;--card:#18212A;--ink:#E6EDF3;--muted:#9AA8B5;--line:#283440;--blue:#7DB8F5;--sky:#5CC4F7;--leaf:#4ED3A1;--soft:#1B2A39;color-scheme:dark}
  .logo img{background:#FBF9F3;border-radius:12px;padding:6px 10px}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-underline-offset:.2em}
a:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:4px}
.wrap{max-width:880px;margin:0 auto;padding-inline:20px}
header.site{padding-block:22px 6px}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.logo img{height:44px;width:auto;display:block}
nav.top{display:flex;gap:18px;font-size:14px}
nav.top a{color:var(--muted);text-decoration:none}
nav.top a:hover{color:var(--blue)}
h1,h2,h3{font-family:var(--f-display);font-weight:700;line-height:1.35;text-wrap:balance;margin:0}
h1{font-size:clamp(28px,5vw,42px)}
h2{font-size:22px}
h3{font-size:17px}
p{margin:0}
.hero{padding-block:28px 12px;display:grid;gap:26px;align-items:center}
@media (min-width:820px){.hero{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:40px;padding-block:56px 40px}}
.hero figure{margin:0}
.hero img{width:100%;height:auto;display:block}
.hero .lead{display:flex;flex-direction:column;gap:14px;max-width:34em}
.hero .lead p{color:var(--muted);font-size:17px}
.hero h1{font-size:clamp(28px,3.6vw,38px)}
.loop{white-space:nowrap;background:linear-gradient(90deg,var(--sky),var(--leaf));-webkit-background-clip:text;background-clip:text;color:transparent}
.badge{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;font-size:14px;font-weight:700;color:var(--blue);background:var(--soft);border-radius:999px;padding:6px 14px}
.badge::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--leaf)}
main{padding-block:8px 56px}
.doc{display:flex;flex-direction:column;gap:28px;max-width:44em}
.doc section{display:flex;flex-direction:column;gap:10px}
.doc ul{margin:0;padding-left:1.3em;display:flex;flex-direction:column;gap:6px}
.doc .meta{color:var(--muted);font-size:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px 24px;display:flex;flex-direction:column;gap:10px}
.mail{font-family:var(--f-en);font-size:20px;font-weight:700;word-break:break-all}
.split{display:grid;grid-template-columns:1fr;gap:24px;align-items:center}
@media (min-width:720px){.split{grid-template-columns:minmax(0,1fr) 200px}}
.split img{width:200px;max-width:100%;height:auto;justify-self:center}
.lang{border-top:1px solid var(--line);padding-top:28px}
footer{border-top:1px solid var(--line);padding-block:22px 36px;font-size:14px;color:var(--muted)}
footer .wrap{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;justify-content:space-between}
footer nav{display:flex;gap:18px;flex-wrap:wrap}
footer a{color:var(--muted)}
@media (prefers-reduced-motion:no-preference){.hero img{animation:rise .7s ease-out both}@keyframes rise{from{transform:translateY(8px);opacity:.6}to{transform:none;opacity:1}}}