:root {
  color-scheme: light;
  font-family: Consolas, "Liberation Mono", ui-monospace, monospace;
  color: #172738;
  background: #fff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 32px 24px;
}
main { width: min(1000px, 100%); text-align: center; }
img { display: block; width: min(560px, 100%); height: auto; margin-inline: auto; }
h1 {
  max-width: 680px;
  margin: 36px auto 20px;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -.025em;
}
.introduction {
  max-width: 680px;
  margin: 0 auto;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  color: #536779;
  font-size: 17px;
  line-height: 1.7;
}
.principles {
  max-width: 680px;
  margin: 24px auto 0;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
}
.pillars {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 32px 0 28px;
  border: 1px solid #dbe3eb;
  border-radius: 4px;
  overflow: hidden;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  text-align: left;
}
.pillars article { padding: 24px; border-top: 3px solid var(--pillar-color); }
.pillars article + article { border-left: 1px solid #dbe3eb; }
.real-time { --pillar-color: #007caf; }
.embedded { --pillar-color: #007f83; }
.virtual { --pillar-color: #00823a; }
.pillars h2 { margin: 0 0 12px; color: var(--pillar-color); font-size: 20px; font-weight: 600; }
.pillars p { margin: 0; color: #536779; font-size: 15px; line-height: 1.65; }
.location { margin: 0; color: #536779; font-size: 13px; line-height: 1.6; }
.status {
  margin: 32px 0 0;
  color: #536779;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: .08em;
}
@media (max-width: 720px) {
  .pillars { grid-template-columns: 1fr; }
  .pillars article { border-top: 0; border-left: 3px solid var(--pillar-color); }
  .pillars article + article { border-left: 3px solid var(--pillar-color); border-top: 1px solid #dbe3eb; }
}