:root {
  --navy: #101b2d;
  --blue: #245a9a;
  --light-blue: #eaf2fb;
  --text: #263238;
  --muted: #66727d;
  --border: #dce3e8;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
}

.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 80px 32px;
}

.hero {
  padding: 50px 0 80px;
}

.brand {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--blue);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

h1 {
  max-width: 760px;
  margin: 0 0 28px;
  color: var(--navy);
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.content h1 {
  font-size: clamp(2.5rem, 6vw, 4.25rem);
}

h2 {
  margin-top: 48px;
  color: var(--navy);
  font-size: 1.5rem;
}

.intro {
  max-width: 650px;
  margin-bottom: 24px;
  font-size: 1.25rem;
}

.store-note {
  display: inline-block;
  margin-top: 12px;
  padding: 10px 16px;
  background: var(--light-blue);
  border-radius: 6px;
  color: var(--blue);
  font-weight: 600;
}

.about,
.content {
  max-width: 760px;
}

.updated {
  margin-top: -12px;
  margin-bottom: 45px;
  color: var(--muted);
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

.back-link {
  margin-top: 55px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

footer {
  border-top: 1px solid var(--border);
  background: #f7f9fb;
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px;
  color: var(--muted);
  font-size: 0.9rem;
}

footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin: 12px 0;
}

.copyright {
  margin-bottom: 0;
}

@media (max-width: 600px) {
  .page {
    padding: 48px 22px;
  }

  .hero {
    padding: 25px 0 50px;
  }

  .footer-inner {
    padding: 28px 22px;
  }
}