/* ============================================================================
   guide/guide.css — Arpass ガイド記事の共通スタイル
   CSP: style-src 'self' 'unsafe-inline' — 外部CSS (same-origin) は 'self' で許可。
   静的な読み物ページ用。JS は使わない。
   ============================================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --accent: #5B21B6;
  --accent-hover: #7C3AED;
  --accent-soft: #F3E8FF;
  --navy: #0F172A;
  --text: #1E293B;
  --muted: #64748B;
  --line: #E2E8F0;
  --paper: #F8FAFC;
  --warn-bg: #FEF3C7;
  --warn-line: #F59E0B;
}
html { scroll-behavior: smooth; }
body {
  font-family: "Yu Gothic", "YuGothic", "Hiragino Kaku Gothic ProN", "Meiryo",
               "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  line-height: 1.85;
  background:
    radial-gradient(ellipse at top, rgba(91,33,182,0.04) 0%, transparent 55%),
    #FFFFFF;
  -webkit-text-size-adjust: 100%;
}
.wrap { max-width: 740px; margin: 0 auto; padding: 0 20px 80px; }

/* --- ヘッダ --- */
header.site {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 740px; margin: 0 auto; padding: 18px 20px;
}
header.site .brand {
  display: flex; align-items: center; gap: 8px;
  font-weight: 800; letter-spacing: 0.04em; color: var(--navy);
  text-decoration: none; font-size: 16px;
}
header.site .brand img { width: 28px; height: 28px; }
header.site .open-app {
  color: var(--accent); text-decoration: none; font-weight: 700; font-size: 14px;
}

/* --- パンくず --- */
.crumb { font-size: 13px; color: var(--muted); margin: 8px 0 20px; }
.crumb a { color: var(--accent); text-decoration: none; }
.crumb a:hover { text-decoration: underline; }

/* --- 記事本文 --- */
h1 {
  font-size: 27px; line-height: 1.45; letter-spacing: -0.01em;
  color: var(--navy); margin: 6px 0 10px;
}
.lead { font-size: 16px; color: var(--muted); margin: 0 0 8px; }
.meta { font-size: 13px; color: var(--muted); margin-bottom: 22px; }
h2 {
  font-size: 21px; color: var(--navy); margin: 38px 0 12px;
  padding-bottom: 8px; border-bottom: 2px solid var(--accent-soft);
}
h3 { font-size: 17px; color: var(--accent); margin: 26px 0 8px; }
p { margin: 12px 0; }
ul, ol { margin: 12px 0 16px 26px; }
li { margin-bottom: 6px; }
strong { color: var(--navy); }
a { color: var(--accent); }
code {
  background: var(--paper); border: 1px solid var(--line); border-radius: 4px;
  padding: 1px 5px; font-family: "SF Mono", Menlo, monospace; font-size: 13px;
}

/* --- 広告表記 --- */
.disclosure {
  background: var(--paper); border: 1px solid var(--line);
  border-radius: 10px; padding: 12px 16px; margin: 20px 0;
  font-size: 13px; color: var(--muted); line-height: 1.7;
}
.disclosure strong { color: var(--navy); }

/* --- 比較表 --- */
.tablewrap { overflow-x: auto; margin: 18px 0; }
table.cmp {
  width: 100%; border-collapse: collapse; font-size: 14px;
  min-width: 460px;
}
table.cmp th, table.cmp td {
  border: 1px solid var(--line); padding: 9px 11px; text-align: left;
  vertical-align: top;
}
table.cmp thead th {
  background: var(--accent-soft); color: var(--navy); font-weight: 700;
}
table.cmp tbody th { background: var(--paper); font-weight: 700; white-space: nowrap; }
table.cmp .yes { color: #059669; font-weight: 700; }
table.cmp .no  { color: #94A3B8; }

/* --- 製品カード --- */
.product {
  border: 1px solid var(--line); border-left: 4px solid var(--accent);
  border-radius: 12px; padding: 16px 18px; margin: 18px 0;
  background: #fff; box-shadow: 0 1px 3px rgba(15,23,42,0.04);
}
.product .pname { font-weight: 800; color: var(--navy); font-size: 16px; }
.product .pdesc { font-size: 14px; color: var(--muted); margin: 6px 0 12px; }

/* --- Amazon リンク (アフィリエイト・プレースホルダー) --- */
.amzn {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--accent); color: #fff; text-decoration: none;
  font-weight: 700; font-size: 14px; padding: 10px 18px; border-radius: 8px;
}
.amzn:hover { background: var(--accent-hover); }
.amzn-note { font-size: 12px; color: var(--muted); margin-top: 6px; }

/* --- 注意/ヒント --- */
.callout {
  background: var(--accent-soft); border-radius: 10px;
  padding: 12px 16px; margin: 16px 0; font-size: 14px; line-height: 1.75;
}
.callout.warn { background: var(--warn-bg); border-left: 4px solid var(--warn-line); }

/* --- 記事一覧 (hub) --- */
.cards { display: grid; gap: 14px; margin: 22px 0; }
.card {
  display: block; border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 20px; text-decoration: none; background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.card:hover { border-color: var(--accent); box-shadow: 0 6px 20px rgba(15,23,42,0.07); }
.card .ctitle { font-weight: 800; color: var(--navy); font-size: 16px; }
.card .cdesc { font-size: 14px; color: var(--muted); margin-top: 6px; }

/* --- フッター --- */
footer.site {
  max-width: 740px; margin: 48px auto 0; padding: 22px 20px;
  border-top: 1px solid var(--line);
  font-size: 13px; color: var(--muted);
  display: flex; flex-wrap: wrap; gap: 14px; justify-content: center;
}
footer.site a { color: var(--accent); text-decoration: none; }

@media (max-width: 480px) {
  h1 { font-size: 23px; }
  h2 { font-size: 19px; }
  .wrap { padding: 0 16px 64px; }
}