/* kei-apps 共通スタイル。アプリ側の配色（ネイビー×アンバー）に合わせる */
:root {
  --bg: #F7F5F2;
  --card: #FFFFFF;
  --ink: #1C1B1A;
  --sub: #6B6560;
  --line: #E3DFDA;
  --flame: #DB7010;
  --navy: #21456F;
  --radius: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --card: #1D1D1F;
    --ink: #F2F0EE;
    --sub: #9A948E;
    --line: #2F2F31;
    --flame: #F2871C;
    --navy: #85B5F2;
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", system-ui, sans-serif;
  line-height: 1.85;
  -webkit-text-size-adjust: 100%;
}

.wrap { max-width: 720px; margin: 0 auto; padding: 40px 20px 72px; }

header { margin-bottom: 28px; }

.eyebrow {
  display: inline-block;
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--flame);
  border: 1.5px solid var(--flame);
  border-radius: 999px;
  padding: 3px 11px;
  margin-bottom: 12px;
}

h1 { font-size: 1.6rem; line-height: 1.45; letter-spacing: .01em; }
h2 { font-size: 1.05rem; margin: 34px 0 10px; color: var(--flame); }
h3 { font-size: .95rem; margin: 18px 0 6px; }

p, li { font-size: .93rem; }
p + p { margin-top: 10px; }

.lead { color: var(--sub); font-size: .88rem; margin-top: 8px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 12px 0;
}

.card h3:first-child { margin-top: 0; }

ul, ol { padding-left: 1.3em; margin: 8px 0; }
li + li { margin-top: 5px; }

a { color: var(--flame); text-underline-offset: 3px; }

.muted { color: var(--sub); font-size: .82rem; }

table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: .88rem; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--sub); font-weight: 600; width: 38%; }

.nav { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.nav a {
  display: inline-block;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink);
  text-decoration: none;
  font-size: .85rem;
}

footer {
  margin-top: 44px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--sub);
  font-size: .78rem;
}

/* フォーム */
label { display: block; font-size: .85rem; font-weight: 600; margin: 16px 0 6px; }
input[type="text"], input[type="email"], select, textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--card);
  color: var(--ink);
  font-family: inherit;
  font-size: .93rem;
}
textarea { min-height: 150px; resize: vertical; }

button {
  margin-top: 20px;
  width: 100%;
  padding: 15px;
  border: 0;
  border-radius: 13px;
  background: var(--flame);
  color: #fff;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}
button:disabled { opacity: .55; cursor: default; }

.result { margin-top: 16px; padding: 14px 16px; border-radius: 12px; font-size: .9rem; display: none; }
.result.ok { display: block; background: rgba(30,150,110,.12); border: 1px solid rgba(30,150,110,.4); }
.result.ng { display: block; background: rgba(200,60,50,.12); border: 1px solid rgba(200,60,50,.4); }