/* 売るならどっち 共通スタイル
   レイアウト：1カラムの読み物。左右の比べっこ（フリマ＝青緑／買取＝山吹）を色で区別する */
:root{
  --bg:#f7f6f2; --surface:#ffffff; --fg:#22252a; --muted:#5f646b; --line:#dcdad3;
  --flea:#1d6f73; --flea-soft:#e1f0ef;
  --buy:#a5620c; --buy-soft:#f8ecd9;
  --accent:#1d6f73;
  --font:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",Meiryo,sans-serif;
}
@media (prefers-color-scheme: dark){:root{
  --bg:#16181b; --surface:#1f2226; --fg:#e8e9ea; --muted:#a2a7ad; --line:#33373c;
  --flea:#6fc4c6; --flea-soft:#1c3233;
  --buy:#e6ad5e; --buy-soft:#3a2e1c;
  --accent:#6fc4c6; color-scheme:dark}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font);font-size:16px;line-height:1.9}
a{color:var(--accent)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
img{max-width:100%;height:auto}
.wrap{max-width:760px;margin:0 auto;padding-inline:16px}

.site-header{background:var(--surface);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:12px;flex-wrap:wrap}
.logo{font-weight:800;font-size:1.15rem;text-decoration:none;color:var(--fg);letter-spacing:.02em}
.logo span{color:var(--flea)}
.logo b{color:var(--buy)}
.site-header nav{display:flex;gap:16px;font-size:.9rem}
.site-header nav a{color:var(--muted);text-decoration:none}
.site-header nav a:hover{color:var(--fg)}

.pr-note{font-size:.78rem;color:var(--muted);padding-block:6px}

main{display:flex;flex-direction:column;gap:48px;padding-block:32px 64px}
h1,h2,h3{line-height:1.45;margin:0;text-wrap:balance}
h1{font-size:1.75rem}
h2{font-size:1.35rem;padding-bottom:6px;border-bottom:2px solid var(--line)}
h3{font-size:1.1rem}
p{margin:0}
section{display:flex;flex-direction:column;gap:16px}
ul,ol{margin:0;padding-left:1.4em}
.lead{color:var(--muted)}
.small{font-size:.88rem;color:var(--muted)}

/* 比べっこ */
.versus{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.side{border-radius:10px;padding:16px;display:flex;flex-direction:column;gap:8px;min-width:0}
.side.flea{background:var(--flea-soft)}
.side.buy{background:var(--buy-soft)}
.side h3{font-size:1rem}
.side.flea h3{color:var(--flea)}
.side.buy h3{color:var(--buy)}
.side ul{font-size:.92rem}
@media (max-width:520px){.versus{grid-template-columns:1fr}}

/* 計算ツール */
.calc{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px;display:flex;flex-direction:column;gap:16px}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px}
.field{display:flex;flex-direction:column;gap:4px;min-width:0}
.field label{font-size:.85rem;font-weight:600}
.field .hint{font-size:.75rem;color:var(--muted)}
.field input{font:inherit;font-size:1rem;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--fg);width:100%;font-variant-numeric:tabular-nums}
.field.flea label{color:var(--flea)}
.field.buy label{color:var(--buy)}
@media (max-width:520px){.fields{grid-template-columns:1fr}}
.result{border-radius:10px;padding:16px;background:var(--bg);display:flex;flex-direction:column;gap:6px}
.result .rows{display:grid;grid-template-columns:auto auto;justify-content:space-between;gap:4px 16px;font-variant-numeric:tabular-nums}
.result .verdict{font-weight:800;font-size:1.15rem}
.result .verdict.flea{color:var(--flea)}
.result .verdict.buy{color:var(--buy)}

.profile{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px;display:flex;flex-direction:column;gap:10px}
.profile dl{display:grid;grid-template-columns:7em minmax(0,1fr);gap:8px 12px;margin:0}
.profile dt{color:var(--muted);font-size:.9rem}
.profile dd{margin:0}
@media (max-width:520px){.profile dl{grid-template-columns:1fr;gap:0 0}.profile dd{margin-bottom:8px}}

.coming{border:1px dashed var(--line);border-radius:10px;padding:16px;color:var(--muted);font-size:.92rem}

.site-footer{border-top:1px solid var(--line);background:var(--surface);font-size:.85rem;color:var(--muted)}
.site-footer .wrap{display:flex;flex-direction:column;gap:8px;padding-block:24px}
.site-footer nav{display:flex;gap:16px;flex-wrap:wrap}
.site-footer a{color:var(--muted)}

/* 記事 */
.article{display:flex;flex-direction:column;gap:18px}
.article-head{display:flex;flex-direction:column;gap:8px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.article-head .small{display:flex;flex-wrap:wrap;gap:4px 16px}
.article h2{margin-top:20px}
.article h3{margin-top:8px}
.point{background:var(--flea-soft);border-radius:10px;padding:14px 16px}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
.table-wrap table{border-collapse:collapse;width:100%;font-size:.92rem;font-variant-numeric:tabular-nums}
.table-wrap th,.table-wrap td{padding:8px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.table-wrap th{background:var(--bg);font-size:.85rem;color:var(--muted)}
.table-wrap tr:last-child td{border-bottom:0}
.article-list{list-style:none;padding:0;display:flex;flex-direction:column}
.article-list li{display:flex;flex-direction:column;gap:2px;padding:12px 0;border-bottom:1px solid var(--line)}
.article-list a{font-weight:700;text-decoration:none}
.article-list a:hover{text-decoration:underline}