:root {
  --bg: #f6f2ea;
  --surface: #ffffff;
  --text: #2b2a27;
  --muted: #5f5b52;
  --accent: #2f5d46;
  --accent-dark: #234836;
  --border: #e2dccf;
  --radius: 14px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.75;
}

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.site-header {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 20px 0;
}

.site-header img {
  display: block;
  max-width: 100%;
  height: auto;
}

.lead {
  margin: 16px 0 20px;
  color: var(--muted);
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  padding-bottom: 48px;
}

.app-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.app-card:hover {
  box-shadow: 0 8px 24px rgba(43, 42, 39, 0.12);
  transform: translateY(-2px);
}

.app-card img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 750;
  background: var(--border);
}

.card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 18px 20px 22px;
}

h2 {
  margin: 0 0 6px;
  font-size: 1.25rem;
  line-height: 1.4;
}

.app-desc {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.9375rem;
}

.button {
  align-self: flex-start;
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

/* card 全体を押せるようにする（リンクは button の 1 つだけ。::after が最も近い position: relative の .app-card を覆う） */
.button::after {
  content: "";
  position: absolute;
  inset: 0;
}

.button:hover { background: var(--accent-dark); }

.button:focus-visible {
  outline: 3px solid #e0a526;
  outline-offset: 3px;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 20px 0 32px;
  color: var(--muted);
  font-size: 0.8125rem;
  text-align: center;
}

.site-footer p { margin: 0; }

@media (max-width: 720px) {
  .cards {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }
  .wrap { padding: 0 16px; }
  .site-header { padding: 16px 16px 0; }
  .button { align-self: stretch; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  .app-card { transition: none; }
  .app-card:hover { transform: none; }
}