nav { font-family: monospace; font-size: 0.85em; padding: 12px 20px; }
nav a { color: inherit; text-decoration: none; }
nav a:hover { text-decoration: underline; }

body { margin: 0; font-family: monospace; background: #f8f8f8; color: #222; }

main { max-width: 700px; margin: 0 auto; padding: 40px 20px 80px; }

h1 { font-size: 1rem; font-weight: normal; margin: 0 0 48px; color: #aaa; }

.section { margin-bottom: 56px; }

.section-label {
  font-size: 0.7em;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #aaa;
  margin: 0 0 4px;
}

h2 {
  font-size: 0.85rem;
  font-weight: normal;
  margin: 0 0 24px;
  padding-bottom: 10px;
  border-bottom: 1px solid #e0e0e0;
}

/* Base unit */
.base-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
}
.base-bar {
  display: inline-block;
  width: 4px;
  height: 24px;
  background: #222;
}
.base-desc { font-size: 0.85em; color: #aaa; }

/* Scale rows */
.scale-row {
  display: grid;
  grid-template-columns: 80px 80px 1fr;
  align-items: center;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid #e0e0e0;
}
.scale-row:last-child { border-bottom: none; }
.scale-step  { font-size: 0.75em; color: #aaa; }
.scale-px    { font-size: 0.75em; color: #888; }
.scale-bar-wrap { overflow: hidden; }
.scale-bar {
  height: 8px;
  background: #222;
  display: inline-block;
}

/* Padding demo */
.pad-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.pad-box-wrap { display: flex; flex-direction: column; gap: 6px; }
.pad-box {
  background: #fff;
  border: 1px solid #e0e0e0;
  display: block;
}
.pad-inner {
  background: #e0e0e0;
  font-size: 0.65em;
  color: #888;
  white-space: nowrap;
}
.pad-label { font-size: 0.7em; color: #aaa; }
.pad-value { font-size: 0.7em; color: #888; }