:root {
  color-scheme: light;
  --bg: #eef2f9;
  --card: #ffffff;
  --border: #e1e7f2;
  --ink: #202632;
  --ink-soft: #5b6472;
  --ink-faint: #8790a0;
  --blue-deep: #3f5f92;
  --blue-mid: #6f97dc;
  --blue-tint: #dce6f7;
  --red: #a8432d;
  --red-tint: #f6e6e1;
  --radius: 18px;
  --shadow: 0 12px 32px rgba(63, 95, 146, 0.10);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Noto Sans JP", "Yu Gothic", sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 680px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}

/* header */
.site-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.site-header img {
  width: 56px;
  height: 56px;
  border-radius: 26%;
  box-shadow: var(--shadow);
  flex-shrink: 0;
}

.site-header .brand-en {
  display: block;
  font-size: 0.8rem;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
  margin-top: 2px;
}

.site-header h1 {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 700;
}

.site-header a.home-link {
  color: inherit;
  text-decoration: none;
}

/* hero */
.hero h2 {
  font-size: 1.5rem;
  line-height: 1.6;
  margin: 0 0 20px;
  color: var(--blue-deep);
}

.hero p {
  margin: 0 0 12px;
  color: var(--ink-soft);
}

/* section */
section {
  margin-top: 56px;
}

section > h3 {
  font-size: 1.05rem;
  margin: 0 0 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  color: var(--ink);
}

/* app card */
.app-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.app-card .app-icon {
  width: 64px;
  height: 64px;
  border-radius: 26%;
  flex-shrink: 0;
}

.app-card .app-meta {
  flex: 1;
  min-width: 200px;
}

.app-card .app-meta h4 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.app-card .app-meta p {
  margin: 0 0 12px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--red-tint);
  color: var(--red);
}

.app-card .screenshot {
  width: 100%;
  margin-top: 18px;
  display: flex;
  justify-content: center;
}

.app-card .screenshot img {
  max-width: 220px;
  width: 100%;
  border-radius: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.app-more {
  margin-top: 14px;
  color: var(--ink-faint);
  font-size: 0.9rem;
}

/* about list */
.about-list {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 8px 24px;
}

.about-list dl {
  margin: 0;
}

.about-row {
  display: flex;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.about-row:last-child { border-bottom: none; }

.about-row dt {
  flex: 0 0 96px;
  color: var(--ink-faint);
  font-size: 0.9rem;
  padding-top: 1px;
}

.about-row dd {
  margin: 0;
  flex: 1;
}

a {
  color: var(--blue-deep);
}

a:hover { color: var(--red); }

/* footer */
footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--ink-faint);
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

footer a { color: var(--ink-faint); }
footer a:hover { color: var(--blue-deep); }

/* privacy page */
.policy h2 {
  font-size: 1.3rem;
  margin: 40px 0 4px;
}

.policy h2:first-of-type { margin-top: 24px; }

.policy h3 {
  font-size: 1.02rem;
  margin: 24px 0 8px;
  border: none;
  padding: 0;
  color: var(--blue-deep);
}

.policy p, .policy li {
  color: var(--ink-soft);
}

.policy .lang-divider {
  margin: 48px 0;
  border: none;
  border-top: 1px dashed var(--border);
}

.back-link {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.9rem;
}

@media (max-width: 480px) {
  .wrap { padding: 40px 18px 64px; }
  .hero h2 { font-size: 1.3rem; }
}