/* vps-ops-note の見た目一式（サイト固有のコピー。shared/template/他サイトには影響しない）。
   フラットな白・ネイビー・ブルーの編集系デザイン。グラデーション・影・角丸装飾は使わない。 */

:root {
  --ink: #172033;
  --muted: #5D6777;
  --line: #D9E0E8;
  --paper: #FFFFFF;
  --surface: #F5F8FB;
  --blue: #1769AA;
  --blue-dark: #125483;
  --blue-soft: #EAF4FB;
  --radius: 4px;
  --container: 1080px;
  --font: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); }
a:hover { color: var(--blue-dark); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; }

/* ===== Header ===== */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem 1.5rem;
  flex-wrap: wrap;
  padding: .9rem 0;
}
.logo { display: flex; align-items: center; gap: .55rem; text-decoration: none; color: var(--ink); }
.logo-mark { display: block; flex-shrink: 0; }
.logo-text { font-weight: 700; font-size: 1rem; color: var(--ink); }
.site-nav { display: flex; flex-wrap: wrap; gap: .2rem; }
.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: .4rem .75rem;
  color: var(--ink);
  text-decoration: none;
  font-size: .92rem;
  font-weight: 700;
  border-radius: var(--radius);
}
.site-nav a:hover { background: var(--blue-soft); color: var(--blue-dark); }

/* ===== Layout ===== */
main { min-height: 60vh; }
.page { padding: 2.2rem 1.5rem 3.5rem; max-width: 720px; margin: 0 auto; }
.page-wide { padding: 2.2rem 1.5rem 3.5rem; max-width: var(--container); margin: 0 auto; }
.page h1, .page-wide h1 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  line-height: 1.4;
  margin: 0 0 1rem;
  font-weight: 700;
}
.page h2, .page-wide h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 2.2rem 0 1rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--line);
}
.page h3 { font-size: 1.02rem; font-weight: 700; margin: 1.6rem 0 .6rem; }
.lead { color: var(--muted); font-size: 1rem; }

/* ===== Buttons / inline links ===== */
.btn {
  display: inline-flex; align-items: center; gap: .4rem; min-height: 44px;
  padding: .6rem 1.1rem; border: 1px solid var(--blue); border-radius: var(--radius);
  color: var(--blue); text-decoration: none; font-weight: 700; font-size: .95rem;
}
.btn:hover { background: var(--blue-soft); }
.btn-primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn-primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: #fff; }

/* ===== Article body ===== */
.article-body p { margin: 1.1rem 0; }
.article-body ul, .article-body ol { margin: 1rem 0; padding-left: 1.3rem; }
.article-body li { margin: .4rem 0; }
.article-body strong { color: var(--ink); }
.article-body a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
.article-body table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  width: 100%;
  border-collapse: collapse;
  margin: 1.2rem 0;
  font-size: .92rem;
}
.article-body th, .article-body td { border: 1px solid var(--line); padding: .55rem .7rem; text-align: left; min-width: 9rem; }
.article-body th { background: var(--surface); font-weight: 700; }
.article-body pre { max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.article-body code { word-break: break-word; }

/* ===== Editorial row lists (article list / home checklist) ===== */
.article-list, .check-list { list-style: none; padding: 0; margin: 1rem 0 0; border-top: 1px solid var(--line); }
.article-list li, .check-list li { border-bottom: 1px solid var(--line); }
.article-list a.title {
  display: block; padding: 1rem 0 .2rem;
  font-weight: 700; color: var(--ink); text-decoration: none; font-size: 1rem;
}
.article-list a.title:hover { color: var(--blue); text-decoration: underline; }
.article-list li { padding-bottom: 1rem; }
.article-list .meta { color: var(--muted); font-size: .82rem; }

.check-list a {
  display: flex; flex-direction: column; gap: .3rem;
  padding: 1.1rem 0; text-decoration: none; color: inherit;
}
.check-list .check-title { font-weight: 700; font-size: 1.02rem; color: var(--ink); }
.check-list a:hover .check-title, .check-list a:focus-visible .check-title {
  color: var(--blue); text-decoration: underline;
}
.check-list .check-desc { color: var(--muted); font-size: .92rem; }

/* ===== FAQ / details ===== */
.faq-list { margin: 1.5rem 0; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); padding: .9rem 0; }
.faq-list summary { font-weight: 700; cursor: pointer; color: var(--ink); }
.faq-list details[open] summary { margin-bottom: .5rem; color: var(--blue-dark); }

/* ===== Steps ===== */
.steps { counter-reset: step; list-style: none; padding: 0; margin: 1.5rem 0; display: grid; gap: .9rem; }
.steps li { counter-increment: step; position: relative; padding: .8rem 0 .8rem 2.4rem; border-bottom: 1px solid var(--line); }
.steps li::before {
  content: counter(step); position: absolute; left: 0; top: .7rem;
  width: 1.5rem; height: 1.5rem; display: grid; place-items: center;
  background: var(--blue); color: #fff; border-radius: 50%; font-weight: 700; font-size: .8rem;
}

/* ===== Info tables / notes ===== */
.info-table { width: 100%; border-collapse: collapse; margin: 1.2rem 0; font-size: .92rem; }
.info-table th, .info-table td { border: 1px solid var(--line); padding: .55rem .8rem; text-align: left; vertical-align: top; }
.info-table th { background: var(--surface); white-space: nowrap; font-weight: 700; }
.note { font-size: .85rem; color: var(--muted); }

/* ===== Byline / ad disclosure ===== */
.byline { font-size: .88rem; color: var(--muted); margin: 0 0 1rem; }
.byline a { color: var(--blue); }
.ad-disclosure {
  font-size: .82rem; line-height: 1.7; color: var(--muted);
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: .7rem .9rem; margin: 0 0 1.6rem;
}

/* ===== Related / CTA ===== */
.related { margin: 2.5rem 0 0; padding-top: 1.4rem; border-top: 1px solid var(--line); }
.related h2 { font-size: 1.05rem; margin: 0 0 .8rem; border-bottom: none; padding-bottom: 0; }
.related ul { list-style: none; margin: 0; padding: 0; }
.related li { padding: .4rem 0; border-bottom: 1px solid var(--line); }
.related li:last-child { border-bottom: 0; }
.related a { color: var(--ink); text-decoration: none; }
.related a:hover { color: var(--blue); text-decoration: underline; }
.cta { margin-top: 2rem; padding: 1rem 1.2rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.cta p { margin: 0; }

/* ===== Homepage lead + panel ===== */
.home-lead { display: grid; grid-template-columns: 1.6fr 1fr; gap: 2.2rem; margin: 1.5rem 0 2.2rem; align-items: start; }
.home-lead-main h1 { margin-bottom: .9rem; }
.home-links { display: flex; flex-wrap: wrap; gap: .5rem 1.4rem; margin-top: 1.1rem; }
.home-links a { font-weight: 700; color: var(--blue); text-decoration: none; }
.home-links a:hover { text-decoration: underline; }
.home-panel { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem 1.3rem; background: var(--blue-soft); }
.home-panel h2 { margin: 0 0 .6rem; font-size: 1.02rem; border-bottom: none; padding-bottom: 0; }
.home-panel p { margin: 0 0 .9rem; color: var(--ink); font-size: .92rem; }
.home-panel a { font-weight: 700; color: var(--blue-dark); text-decoration: none; }
.home-panel a:hover { text-decoration: underline; }

/* ===== Cost estimator ===== */
.cost-form { display: grid; gap: 1.1rem; margin: 1.6rem 0; padding: 1.3rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.cost-field label { display: block; font-weight: 700; margin-bottom: .35rem; font-size: .95rem; }
.cost-field .cost-hint { display: block; font-weight: 400; color: var(--muted); font-size: .8rem; margin-top: .25rem; }
.cost-field input {
  width: 100%; min-height: 44px; padding: .6rem .8rem; font-size: 1rem;
  border: 1px solid var(--line); border-radius: var(--radius); background: #fff; color: var(--ink);
}
.cost-field input:focus-visible { border-color: var(--blue); }
.cost-result { margin: 1.6rem 0; padding: 1.3rem; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.cost-result dl { margin: 0; display: grid; gap: .9rem; }
.cost-result dt { font-size: .85rem; color: var(--muted); }
.cost-result dd { margin: .15rem 0 0; font-size: 1.3rem; font-weight: 700; color: var(--blue-dark); }
.cost-error {
  margin: 1rem 0; padding: .8rem 1rem; background: var(--blue-soft);
  border: 1px solid var(--blue); border-radius: var(--radius); color: var(--blue-dark); font-size: .9rem;
}
.cost-assumptions { font-size: .82rem; color: var(--muted); }
.cost-assumptions li { margin: .3rem 0; }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--line); margin-top: 3rem; }
.footer-inner { padding: 1.6rem 0; display: flex; flex-direction: column; gap: 1rem; }
.footer-nav { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; }
.footer-nav a { color: var(--ink); text-decoration: none; font-size: .88rem; min-height: 44px; display: inline-flex; align-items: center; }
.footer-nav a:hover { color: var(--blue); text-decoration: underline; }
.footer-copy { color: var(--muted); font-size: .8rem; margin: 0; }

/* ===== Focus ===== */
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 2px solid var(--blue); outline-offset: 2px;
}

@media (max-width: 760px) {
  .home-lead { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .page, .page-wide, .container { padding-left: 1rem; padding-right: 1rem; }
}