/* 旅のノート：トップページと同じ紙・墨紺・苔緑の配色 */
:root{
  --paper:#F7F3EC; --card:#FFFFFF; --ink:#262626; --navy:#1F3A5F; --moss:#4F6F52; --mist:#5F7183;
  --line:#E3DED5; --amber:#B8862B; --band:#EFE9DF; --on-navy:#F7F3EC; --line-green:#06C755;
  --head:"Shippori Mincho","Noto Serif TC",serif;
  --body:"Noto Sans JP","Hiragino Sans","Yu Gothic",sans-serif;
  --latin:"Cormorant Garamond",Georgia,serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#13181F; --card:#1A2029; --ink:#E9E5DD; --navy:#AFC6E3; --moss:#9BBA9A; --mist:#A3B0BD;
  --line:#2C3440; --amber:#D9A653; --band:#1A222C; --on-navy:#13181F; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#13181F; --card:#1A2029; --ink:#E9E5DD; --navy:#AFC6E3; --moss:#9BBA9A; --mist:#A3B0BD;
  --line:#2C3440; --amber:#D9A653; --band:#1A222C; --on-navy:#13181F; color-scheme:dark}

*{box-sizing:border-box}
body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.95;letter-spacing:.02em;margin:0}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--paper)}
a{color:var(--navy)}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
img{display:block;max-width:100%;height:auto}
p{margin:0}
.wrap{max-width:1120px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.narrow{max-width:760px}
h1,h2,h3{font-family:var(--head);color:var(--navy);font-weight:600;letter-spacing:.08em;line-height:1.5;text-wrap:balance;margin:0;word-break:auto-phrase}
p{word-break:auto-phrase}

.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:9;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:12px 24px;padding-block:12px;flex-wrap:wrap}
.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none;color:var(--navy);margin-right:auto}
.brand b{font-family:var(--latin);font-size:26px;font-weight:600;letter-spacing:.03em}
.brand small{font-family:var(--head);font-size:12.5px;color:var(--mist);letter-spacing:.14em}
.top nav{display:flex;gap:4px 18px;flex-wrap:wrap;font-size:14.5px}
.top nav a{color:var(--ink);text-decoration:none;border-bottom:1px solid transparent}
.top nav a:hover{border-color:var(--navy)}

.eyebrow{font-family:var(--latin);font-style:italic;font-size:15px;letter-spacing:.12em;color:var(--moss)}
.sec{padding-block:clamp(40px,7vw,88px)}
.lead{color:var(--mist);margin-top:14px}
.meta{font-size:13.5px;color:var(--mist);letter-spacing:.06em;margin-top:10px}

/* 一覧 */
.list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,36px);margin-top:clamp(28px,4vw,44px)}
.card{display:grid;gap:10px;text-decoration:none;color:var(--ink);padding-bottom:18px;border-bottom:1px solid var(--line);min-width:0}
.card .ph{aspect-ratio:3/2;overflow:hidden;max-width:100%}
.card .ph img{width:100%;height:100%;object-fit:cover}
.card h2{font-size:19px}
.card p{color:var(--mist);font-size:15px}

/* 記事 */
.article h1{font-size:clamp(26px,3.6vw,38px);margin-top:8px}
.article figure{margin:clamp(28px,4vw,44px) 0 0}
.article figure img{width:100%;aspect-ratio:3/2;object-fit:cover}
.article h2{font-size:clamp(20px,2.4vw,24px);margin-top:16px}
.article h2 small{display:block;font-family:var(--latin);font-style:italic;font-size:14px;color:var(--moss);letter-spacing:.12em;font-weight:500}
.article .body{margin-top:8px}
.toc{margin-top:28px;padding:18px 22px;background:var(--band);font-size:15px}
.toc ol{margin:6px 0 0;padding-left:1.4em}
.toc a{text-decoration:none}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:12px 26px;font:inherit;font-size:15.5px;letter-spacing:.08em;text-decoration:none;border:1px solid var(--navy);background:var(--navy);color:var(--on-navy)}
.btn.line{background:var(--line-green);border-color:var(--line-green);color:#fff}
.btn.ghost{background:transparent;color:var(--navy)}
.btn:hover{filter:brightness(1.1)}
.closing{margin-top:clamp(36px,5vw,56px);padding-top:28px;border-top:1px solid var(--line)}
.credit{font-size:13px;color:var(--mist);margin-top:18px}

footer{background:var(--navy);color:var(--on-navy);font-size:13.5px;margin-top:clamp(40px,6vw,72px)}
footer .wrap{padding-block:32px;display:grid;gap:8px}
footer a{color:var(--on-navy)}
footer b{font-family:var(--latin);font-size:22px;font-weight:600}
footer .legal{opacity:.85;line-height:1.8}

@media (max-width:900px){.list{grid-template-columns:1fr 1fr}}
@media (max-width:620px){body{font-size:16.5px}.list{grid-template-columns:1fr}.cta .btn{flex:1 1 100%}}