:root {
  --color-bg: #f2f2f3;
  --color-text: #1d1f20;
  --color-accent: #5980a6;
  --color-accent-700: #3c5771;
  --color-accent-100: #e7edf3;
  --color-neutral-600: #6f7276;
  --color-divider: color-mix(in srgb, #1d1f20 16%, transparent);
  --space-2: 6.8px;
  --space-4: 13.6px;
  --space-6: 20.4px;
  --space-8: 27.2px;
}
html, body { margin: 0; padding: 0; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: "Barlow", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-accent-700); text-underline-offset: 3px; text-decoration: none; }
a:hover { color: var(--color-accent); text-decoration: underline; }
a:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
::selection { background: color-mix(in srgb, var(--color-accent) 25%, transparent); }
.wrap { max-width: 780px; margin: 0 auto; padding: var(--space-8) var(--space-6) 64px; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-4); padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-divider); margin-bottom: var(--space-8);
}
.brand { display: flex; align-items: center; gap: var(--space-2); }
.brand img { width: 110px; height: auto; display: block; }
h1 {
  font-family: "Barlow Condensed", "Barlow", sans-serif;
  font-weight: 600; font-size: 2rem; line-height: 1.15;
  letter-spacing: 0.01em; margin: 0 0 var(--space-2);
}
h2 {
  font-family: "Barlow Condensed", "Barlow", sans-serif;
  font-weight: 600; font-size: 1.25rem; letter-spacing: 0.02em;
  color: var(--color-accent-700); margin: 2.2em 0 0.5em;
}
h3 { font-size: 1rem; font-weight: 600; margin: 1.6em 0 0.3em; }
.meta { color: var(--color-neutral-600); font-size: 0.9rem; margin: 0 0 2em; }
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; }
th, td { border: 1px solid var(--color-divider); padding: 8px 10px; text-align: left; vertical-align: top; }
th {
  background: var(--color-accent-100);
  font-family: "Barlow Condensed", "Barlow", sans-serif;
  font-weight: 600; letter-spacing: 0.03em; color: var(--color-accent-700);
}
ul, ol { padding-left: 1.3em; }
ol li { margin-bottom: 0.5em; }
.blueprint { position: relative; border: 1px solid var(--color-divider); }
.corner { position: absolute; width: 11px; height: 11px; pointer-events: none; }
.corner::before, .corner::after { content: ""; position: absolute; background: var(--color-accent); }
.corner::before { left: 5px; top: 0; width: 1px; height: 11px; }
.corner::after { left: 0; top: 5px; width: 11px; height: 1px; }
.corner.tl { left: -6px; top: -6px; }
.corner.tr { right: -6px; top: -6px; }
.corner.bl { left: -6px; bottom: -6px; }
.corner.br { right: -6px; bottom: -6px; }
.table-frame { padding: var(--space-4); margin: var(--space-4) 0; }
.card-frame { padding: var(--space-4) var(--space-6); margin: 1em 0; }
.card-frame p { margin: 0.3em 0; }
footer {
  margin-top: 64px; padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
  display: flex; flex-direction: column; align-items: center; gap: var(--space-2);
  font-size: 13px; color: var(--color-neutral-600); text-align: center;
}
footer p { margin: 0; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-2) var(--space-4); }