/* 色と書体はアプリのテーマ（MagicCamera/Theme/Theme.swift、docs/strategy/ui-mockup.html）に合わせる。アプリと同じく暗い地だけにする */
:root {
  color-scheme: dark;
  --background: #2B2A29;
  --header: #232221;
  --surface: #33312F;
  --text: #F2EDE6;
  --text-secondary: #C9C2BA;
  --line: rgba(242, 237, 230, .24);
  --link: #E7AEB5;
  --accent: #D3929A;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  font-weight: 300;
  color: var(--text);
  background: var(--background);
  line-height: 1.9;
  letter-spacing: .02em;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--background); }
a { color: var(--link); text-underline-offset: 4px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--link); outline-offset: 4px; border-radius: 4px; }
.wrap { width: min(100% - 32px, 720px); margin-inline: auto; }

header { background: var(--header); border-bottom: 1px solid var(--accent); }
header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-block: 16px; }
.brand { color: var(--text); font-weight: 300; font-size: 1.25rem; letter-spacing: .18em; text-decoration: none; white-space: nowrap; }
nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
nav a { color: var(--text-secondary); text-decoration: none; font-size: .95rem; }
nav a:hover, nav a[aria-current="page"] { color: var(--text); text-decoration: underline; text-decoration-color: var(--accent); }

main { padding-block: 32px 72px; }
h1, h2 { font-weight: 300; letter-spacing: .06em; }
h1 { font-size: clamp(1.6rem, 5vw, 2.1rem); line-height: 1.45; margin-block: .2em .6em; }
h2 { margin-top: 2.4rem; padding-top: .7rem; border-top: 1px solid var(--line); font-size: 1.15rem; }
.card h2 { margin-top: 0; padding-top: 0; border-top: 0; }
p, li { overflow-wrap: anywhere; }
ul { padding-left: 1.3rem; }
li + li { margin-top: .35rem; }
strong { font-weight: 400; color: var(--text); }
.lead { font-size: 1.06rem; color: var(--text); }
.card { padding: 18px 20px; border-radius: 22px; background: var(--surface); border: 1px solid var(--line); }
.meta { color: var(--text-secondary); font-size: .9rem; }
.hero { display: flex; align-items: center; gap: 22px; margin-bottom: 8px; }
.hero img { width: 96px; height: 96px; border-radius: 22px; flex: none; }
.hero h1 { letter-spacing: .2em; margin: 0; }

footer { border-top: 1px solid var(--line); color: var(--text-secondary); font-size: .85rem; }
footer .wrap { padding-block: 18px 32px; }

@media (max-width: 500px) {
  header .wrap { align-items: flex-start; flex-direction: column; gap: 8px; }
  .hero { align-items: flex-start; flex-direction: column; }
}