:root {
  color: #111827;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  margin: 0;
  background: #fff;
}

.page {
  width: min(100% - 80px, 1100px);
  min-height: 100vh;
  margin: 0 auto;
  padding: 224px 0 96px;
}

h1, h2, p { margin: 0; }

h1 {
  margin-bottom: 22px;
  font-size: 27px;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.product-card {
  display: flex;
  align-items: center;
  gap: 34px;
  min-height: 210px;
  padding: 36px 40px;
  border: 1px solid #e3e6eb;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgb(15 23 42 / 0.04);
}

.app-icon {
  width: 124px;
  height: 124px;
  flex: 0 0 auto;
  display: block;
  object-fit: cover;
  border: 1px solid #e7e9ee;
  border-radius: 28px;
  box-shadow: 0 2px 7px rgb(15 23 42 / 0.08);
}

.product-details h2 {
  font-size: 23px;
  line-height: 1.3;
  letter-spacing: -0.03em;
}

.product-details p {
  margin-top: 15px;
  font-size: 16px;
  line-height: 1.7;
}

a { color: #0059f7; text-decoration: none; }
a:hover { text-decoration: underline; }

.store-link {
  display: inline-block;
  margin-top: 22px;
  font-size: 16px;
  font-weight: 500;
}

.store-link span { margin-left: 3px; font-size: 19px; }

footer {
  margin-top: 182px;
  padding-top: 32px;
  border-top: 1px solid #dfe3e8;
}

footer h2 { font-size: 18px; line-height: 1.3; }
footer a { display: inline-block; margin-top: 19px; font-size: 16px; }

@media (max-width: 640px) {
  .page {
    width: min(100% - 40px, 440px);
    padding: 174px 0 72px;
  }

  h1 { margin-bottom: 22px; font-size: 24px; }

  .product-card {
    display: block;
    min-height: 388px;
    padding: 40px 22px 34px;
    text-align: center;
  }

  .app-icon { width: 124px; height: 124px; margin: 0 auto; }
  .product-details h2 { margin-top: 29px; font-size: 24px; }
  .product-details p { margin: 15px auto 0; max-width: 250px; line-height: 1.8; }
  .store-link { margin-top: 24px; }
  footer { margin-top: 124px; padding-top: 32px; }
}