:root {
  --bg: #ffffff;
  --bg-sub: #f5f6f4;
  --text: #1d2321;
  --text-sub: #5b6560;
  --line: #dfe3e0;
  --accent: #2f5d50;
  --todo: #fff1a8;
  --max: 880px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141816;
    --bg-sub: #1c211f;
    --text: #e6ebe8;
    --text-sub: #9aa59f;
    --line: #2c3430;
    --accent: #8cc1af;
    --todo: #5a4d10;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", "Yu Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: .02em;
}

a { color: var(--accent); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

header.site {
  border-bottom: 1px solid var(--line);
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; min-height: 64px; flex-wrap: wrap;
}
.logo { font-weight: 700; font-size: 18px; color: var(--text); text-decoration: none; letter-spacing: .06em; }
nav.global { display: flex; gap: 20px; flex-wrap: wrap; font-size: 14px; }
nav.global a { color: var(--text-sub); text-decoration: none; }
nav.global a:hover { color: var(--accent); }

main { padding: 56px 0 80px; }

.hero { padding: 24px 0 48px; }
.hero h1 { font-size: clamp(26px, 5vw, 36px); line-height: 1.5; margin: 0 0 16px; }
.hero p { color: var(--text-sub); margin: 0; }

section { margin-top: 56px; }
h2 {
  font-size: 22px; margin: 0 0 20px; padding-bottom: 10px;
  border-bottom: 2px solid var(--accent); display: inline-block;
}
h1.page-title { font-size: 26px; margin: 0 0 32px; }

table.info { width: 100%; border-collapse: collapse; }
table.info th, table.info td {
  text-align: left; vertical-align: top; padding: 14px 12px;
  border-bottom: 1px solid var(--line);
}
table.info th { width: 28%; min-width: 7.5em; font-weight: 600; background: var(--bg-sub); }

@media (max-width: 560px) {
  table.info th, table.info td { display: block; width: 100%; }
  table.info th { border-bottom: none; padding-bottom: 4px; }
  table.info td { padding-top: 4px; }
}

.card {
  background: var(--bg-sub); border: 1px solid var(--line); border-radius: 8px; padding: 24px;
}

.policy h2 { font-size: 18px; border-bottom-width: 1px; margin-top: 36px; }
.policy ol, .policy ul { padding-left: 1.4em; }

.note { color: var(--text-sub); font-size: 14px; }

/* 未確定の箇所。公開前に必ず埋めて、このクラスを外す */
.todo { background: var(--todo); padding: 0 3px; border-radius: 2px; }

footer.site {
  border-top: 1px solid var(--line); padding: 32px 0; font-size: 13px; color: var(--text-sub);
}
footer.site nav { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 12px; }
footer.site a { color: var(--text-sub); }

form.contact { display: grid; gap: 20px; max-width: 640px; margin-top: 32px; }
form.contact label { display: block; font-weight: 600; font-size: 15px; }
form.contact .req, form.contact .opt {
  display: inline-block; margin-left: 8px; font-size: 11px; font-weight: 600;
  padding: 1px 6px; border-radius: 3px; vertical-align: middle;
}
form.contact .req { background: var(--accent); color: var(--bg); }
form.contact .opt { background: var(--line); color: var(--text-sub); }
form.contact input[type=text], form.contact input[type=email], form.contact input[type=tel], form.contact textarea {
  display: block; width: 100%; margin-top: 6px; font: inherit; font-weight: 400; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px;
}
form.contact input:focus, form.contact textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
form.contact label.check { display: flex; align-items: center; gap: 8px; font-weight: 400; }
form.contact button {
  justify-self: start; font: inherit; font-weight: 600; color: var(--bg); background: var(--accent);
  border: none; border-radius: 6px; padding: 12px 32px; cursor: pointer;
}
form.contact button:hover { opacity: .9; }