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

/* Base */
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: #f9f9f9;
  color: #111;
  line-height: 1.6;
}

/* Fixed-width centered column */
.container {
  width: 420px;            /* <-- fixed "phone-like" width */
  margin: 40px auto;      /* center horizontally */
  padding: 0 16px;
}

/* Header */
.header {
  margin-bottom: 24px;
}

.header h1 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 4px;
}

.tagline {
  font-size: 14px;
  color: #666;
}

/* Nav */
.nav {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
}

.nav a {
  text-decoration: none;
  font-size: 14px;
  color: #333;
}

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

/* Content sections */
.section {
  margin-bottom: 32px;
}

.section h2 {
  font-size: 18px;
  margin-bottom: 12px;
}

/* Lists */
.list {
  list-style: none;
}

.list li {
  margin-bottom: 8px;
}

.list a {
  text-decoration: none;
  color: #0077cc;
}

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

/* Footer */
.footer {
  margin-top: 40px;
  font-size: 12px;
  color: #888;
}