:root {
  color-scheme: light;
  --bg: #f6f8f9;
  --surface: #ffffff;
  --text: #171916;
  --muted: #62685e;
  --line: #d9dee2;
  --blue: #2b68b8;
  --green: #087d73;
  --plum: #7b4f73;
  --ink: #111827;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Segoe UI", sans-serif;
  line-height: 1.7;
}

a {
  color: inherit;
}

main {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 0 36px;
}

.brand {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0;
  text-decoration: none;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

nav a,
.links a {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  padding: 9px 12px;
  text-decoration: none;
}

.links a.store {
  border-color: transparent;
  background: var(--ink);
  color: #fff;
}

.intro {
  display: grid;
  gap: 14px;
  max-width: 780px;
  padding: 28px 0 34px;
}

.eyebrow,
.tag {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  max-width: 720px;
  font-size: clamp(38px, 7vw, 74px);
  line-height: 1.06;
}

.lead {
  margin: 0;
  max-width: 680px;
  color: var(--muted);
  font-size: 18px;
}

.apps {
  display: grid;
  gap: 18px;
}

.app-card {
  display: grid;
  grid-template-columns: minmax(260px, 0.88fr) minmax(280px, 1.12fr);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.app-card:nth-child(even) {
  grid-template-columns: minmax(280px, 1.12fr) minmax(260px, 0.88fr);
}

.app-card:nth-child(even) .media-link {
  order: 2;
}

.media-link {
  display: grid;
  min-height: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #e8ece6;
}

.media-link img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.pdf-key .media-link img,
.miwotsukushi .media-link img {
  object-fit: contain;
  padding: 22px;
}

.pdf-key .media-link {
  background: #dfefff;
}

.pdf-deck .media-link {
  background: #e8edf1;
}

.miwotsukushi .media-link {
  background: #dff2ee;
}

.app-copy {
  display: grid;
  align-content: center;
  gap: 14px;
  padding: clamp(24px, 5vw, 52px);
}

.app-copy h2 {
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.08;
}

.app-copy p:not(.tag) {
  margin: 0;
  max-width: 560px;
  color: var(--muted);
  font-size: 16px;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 4px;
}

.pdf-key .tag {
  color: var(--blue);
}

.pdf-deck .tag {
  color: var(--plum);
}

.miwotsukushi .tag {
  color: var(--green);
}

footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding-top: 28px;
  color: var(--muted);
  font-size: 14px;
}

footer p {
  margin: 0;
}

@media (max-width: 780px) {
  main {
    width: min(100% - 24px, 620px);
    padding-top: 16px;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding-bottom: 22px;
  }

  nav {
    justify-content: flex-start;
  }

  .intro {
    padding-top: 10px;
  }

  .app-card,
  .app-card:nth-child(even) {
    grid-template-columns: 1fr;
  }

  .app-card:nth-child(even) .media-link {
    order: 0;
  }

  .media-link {
    aspect-ratio: 16 / 11;
  }
}