* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #1d1d1f;
  background: #fafafa;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Nav */
header {
  border-bottom: 1px solid #e5e5e5;
  background: #fff;
}

nav {
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: #1d1d1f;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  color: #555;
  text-decoration: none;
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: #0071e3;
}

/* Main */
main {
  flex: 1;
  max-width: 720px;
  margin: 0 auto;
  padding: 1.5rem;
  width: 100%;
}

/* Hero */
.hero {
  text-align: center;
  padding: 5rem 1rem 3rem;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.tagline {
  margin-top: 0.75rem;
  font-size: 1.2rem;
  color: #555;
}

/* About */
.about {
  text-align: center;
  padding: 2rem 1rem 4rem;
  color: #777;
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Content pages */
.page {
  padding-top: 2.5rem;
  padding-bottom: 3rem;
}

.page h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.page .updated {
  color: #888;
  font-size: 0.85rem;
  margin-bottom: 2rem;
}

.page h2 {
  font-size: 1.15rem;
  margin-top: 1.5rem;
  margin-bottom: 0.4rem;
}

.page p, .page ul {
  color: #444;
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.page ul {
  padding-left: 1.5rem;
}

.page a {
  color: #0071e3;
  text-decoration: none;
}

.page a:hover {
  text-decoration: underline;
}

.contact {
  font-size: 1.1rem;
}

.contact a {
  font-weight: 600;
}

/* Footer */
footer {
  border-top: 1px solid #e5e5e5;
  background: #fff;
  text-align: center;
  padding: 1.5rem;
  font-size: 0.85rem;
  color: #888;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: #888;
  text-decoration: none;
}

.footer-links a:hover {
  color: #0071e3;
}