/* アプリの core/theme.dart の色に合わせる(紙・墨・黄)。 */
:root {
  --paper: #FBF9F1;
  --grouped: #F2EEE0;
  --rule: #E6E0CC;
  --ink: #1A1A1A;
  --ink-soft: #3B3A35;
  --muted: #6B675C;
  --brand: #FFD53D;
  --on-brand: #1A1A1A;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #181715;
    --grouped: #23221E;
    --rule: #3A3730;
    --ink: #F1EDE2;
    --ink-soft: #D8D3C5;
    --muted: #A29C8D;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-soft);
  font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', sans-serif;
  line-height: 1.85;
  -webkit-text-size-adjust: 100%;
}
main { max-width: 720px; margin: 0 auto; padding: 40px 16px 80px; }
header { text-align: center; margin-bottom: 32px; }
header img { width: 72px; height: 72px; border-radius: 16px; border: 1px solid var(--rule); }
.app { margin: 12px 0 0; color: var(--muted); font-size: 14px; letter-spacing: 0.04em; }
h1, h2 {
  font-family: 'Hiragino Mincho ProN', 'Yu Mincho', 'Noto Serif JP', serif;
  font-weight: 600;
  color: var(--ink);
}
h1 { font-size: 28px; margin: 4px 0; }
h2 { font-size: 22px; margin: 0 0 12px; padding-bottom: 8px; border-bottom: 1px solid var(--rule); }
h3 { font-size: 16px; color: var(--ink); margin: 28px 0 6px; }
nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
nav a {
  color: var(--ink);
  text-decoration: none;
  background: var(--grouped);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 14px;
}
section.lang { margin-bottom: 56px; }
ul { padding-left: 1.3em; }
li { margin: 4px 0; }
a { color: var(--ink); text-decoration-color: var(--brand); text-decoration-thickness: 2px; text-underline-offset: 3px; }
.box { background: var(--grouped); border-radius: 12px; padding: 16px 18px; }
.date { color: var(--muted); font-size: 14px; margin-top: 24px; }
.cta {
  display: inline-block;
  background: var(--brand);
  color: var(--on-brand);
  border: 1.5px solid var(--on-brand);
  border-radius: 999px;
  padding: 8px 22px;
  text-decoration: none;
  font-weight: 600;
}
footer { text-align: center; color: var(--muted); font-size: 13px; margin-top: 48px; }
footer a { color: var(--muted); }

/* ---- LP ---- */
.hero { text-align: center; padding: 24px 0 8px; }
.hero h1 { font-size: 34px; line-height: 1.4; margin: 20px 0 12px; }
.hero .lead { font-size: 17px; color: var(--ink-soft); margin: 0 0 24px; }
.lang-switch { position: absolute; top: 16px; right: 16px; font-size: 14px; }
.shots {
  display: flex; gap: 12px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 8px 16px 16px; margin: 32px -16px 8px; -webkit-overflow-scrolling: touch;
}
.shots img {
  flex: 0 0 auto; width: 220px; height: auto; border-radius: 18px;
  scroll-snap-align: center; border: 1px solid var(--rule);
}
.features { display: grid; grid-template-columns: 1fr; gap: 12px; margin: 32px 0; }
@media (min-width: 640px) { .features { grid-template-columns: 1fr 1fr; } }
.features .box h3 { margin: 0 0 4px; }
.features .box p { margin: 0; }
.pricing { text-align: center; margin: 40px 0 0; }
.badge { display: inline-block; height: 48px; }